DE102023112167A1 - Contact unit, energy storage unit and kit for producing a contact unit - Google Patents

Abstract

The present invention relates to a contacting unit, preferably for an energy storage unit for receiving, storing and/or providing electrical energy, wherein the contacting unit comprises the following: a demarcation element, preferably for demarcating an interior of the energy storage unit from an exterior space located outside the energy storage unit, a current conducting element or a part of a current conducting element, wherein the current conducting element or the part of the current conducting element extends through the demarcation element, wherein an electrical current can be conducted through the demarcation element via the current conducting element or the part of the current conducting element, and a separating element which separates the current conducting element or the part of the current conducting element from the demarcation element.

Description

The present invention relates to a contacting unit, an energy storage unit and a kit for producing a contacting unit.

Energy storage units for the absorption, storage and/or provision of electrical energy are being used on an ever-increasing scale, particularly in connection with increasing electromobility.

Such energy storage units comprise current conducting elements that can extend from an interior of the energy storage unit into an external space located outside the energy storage unit.

Energy stored in the energy storage unit can be made available via the current conducting elements. Energy to be stored in the energy storage unit can be absorbed by the energy storage unit via the current conducting elements.

There is a need to provide powerful energy storage units that are as durable as possible. In particular, their exterior and interior should be well sealed against each other and a high level of corrosion resistance should be ensured.

The present invention is based on the object of providing a contact unit, an energy storage unit and a kit for producing a contact unit, which can be produced as simply as possible or allow for the simplest possible production and which have a long service life or enable the production of a contact unit or energy storage unit that is durable. It can be preferred if rejects can be avoided in the simplest possible way during production.

This object is achieved by the contacting unit according to the relevant independent claim.

The contact unit is preferably a contact unit for an energy storage unit for receiving, storing and/or providing electrical energy.

The contact unit can preferably be suitable for an energy storage unit for receiving, storing and/or providing electrical energy.

• - ein Abgrenzungselement,
• - ein Stromleitelement oder ein Teil eines Stromleitelements, wobei das Stromleitelement oder das Teil des Stromleitelements sich durch das Abgrenzungselement erstreckt, wobei über das Stromleitelement oder das Teil des Stromleitelements ein elektrischer Strom durch das Abgrenzungselement hindurch leitbar ist, und
• - ein Separierelement, welches das Stromleitelement oder das Teil des Stromleitelements von dem Abgrenzungselement separiert.

The contact unit comprises in particular the following:

• - a demarcation element,
• - a current-conducting element or a part of a current-conducting element, wherein the current-conducting element or the part of the current-conducting element extends through the demarcation element, wherein an electric current can be conducted through the demarcation element via the current-conducting element or the part of the current-conducting element, and
• - a separating element which separates the current-conducting element or the part of the current-conducting element from the demarcation element.

The term “in particular” is used in this description and the appended claims to describe optional features.

The contacting unit can preferably be a wall unit or a housing unit.

The wall unit may form a wall or part of a wall of an energy storage unit.

The housing unit may form a wall of a housing or part of a wall of a housing of an energy storage unit.

The demarcation element can preferably be a demarcation element for demarcating an interior space of the energy storage unit from an exterior space located outside the energy storage unit.

The demarcation element can preferably be suitable for demarcating an interior space of the energy storage unit from an exterior space located outside the energy storage unit.

The demarcation element is one of several components of the contact unit.

The boundary element can be a housing element, a cover element, a sheet metal element and/or a cover sheet element.

Preferably, the delimiting element is a housing element, a sheet metal element and/or a cover sheet element.

Particularly preferably, the delimiting element is a housing element selected from a sheet metal element and a cover sheet element.

Particularly preferably, the demarcation element is metallic.

The demarcation element can preferably be formed from a metal sheet.

The sheet metal of the sheet metal element or the cover sheet element is preferably a metal sheet.

Preferably, the contacting unit can be or comprise a cathode contacting unit.

Preferably, the contacting unit can be or comprise an anode contacting unit.

Preferably, the contacting unit can represent a cathode contacting unit and an anode contacting unit.

The current conducting element can be a one-piece current conducting element or a multi-piece current conducting element.

The current-conducting element may comprise a pole element and a connection element.

If the current conducting element is a multi-part current conducting element, the pole element can be a part of the current conducting element and the connection element can be a further part of the current conducting element. In addition, the current conducting element can comprise a further part or several further parts.

In or on an energy storage unit, the current-conducting element can serve to connect a galvanic element located in the interior of the energy storage unit with a contact system located outside the energy storage unit.

Preferably, an electrical contact to the galvanic element can be established via a connection element of the current conducting element. Preferably, an electrical contact to the contacting system can be established via a pole element of the current conducting element.

The contacting unit may comprise a current-conducting element or a part of a current-conducting element.

If the contacting unit comprises a part of a current-conducting element, the part of the current-conducting element encompassed by the contacting unit can be, for example, a connection element or a pole element.

If the contacting unit comprises the current-conducting element, a pole element comprised by the current-conducting element or a connection element comprised by the current-conducting element can extend through the delimiting element.

The separating element separates the current-conducting element from the demarcation element.

Preferably, the separating element can separate the current-conducting element from the demarcation element such that the current-conducting element does not touch the demarcation element.

Preferably, the separating element can separate the current-conducting element from the demarcation element such that there is no direct electrical contact between the current-conducting element and the demarcation element.

The separating element can preferably be a casting element.

The potting element can preferably be formed from a first polymer material, which in particular comprises or is formed from a resin material.

The resin material can form a component of a potting compound from which the potting element can be manufactured.

It may be advantageous if the polymer material has a hardness of approx. 40 Shore D or more, in particular approx. 50 Shore D or more, for example approx. 60 Shore D or more.

Preferably, the polymer material has a hardness of about 100 Shore D or less, in particular about 97 Shore D or less, for example about 95 Shore D or less.

The hardness is in particular according to DIN EN ISO 868 certainly.

The hardnesses mentioned preferably also apply to the resin material in a cured state.

Preferably, the resin material comprises or is formed from one or more of the following materials: epoxy resin material, phenolic resin material, aminoplast material, polyurethane material, silicone material, polyester resin material, ABS (acrylonitrile butadiene styrene) resin material.

An epoxy resin material, for example an epoxy resin, has proven to be particularly advantageous. This has an optimized resistance to corrosion. This can be particularly advantageous with regard to contact with an electrolyte to be used in the interior of the energy storage unit.

In particular, epoxy resin materials have an optimized gas tightness, which is why Sealing with epoxy resin materials is advantageous for optimized tightness.

When using an epoxy resin material as the resin material, small volume shrinkages occur preferably during curing and/or drying. This can prevent the formation of gaps.

Preferably, one-component resin materials are used as the resin material.

It can be advantageous if the polymer material is a highly cross-linked material, for example a highly cross-linked epoxy resin material.

It may be advantageous if the resin material used in the manufacture of the potting element has a viscosity of approximately 10 ² mPa·s or more, in particular approximately 10 ³ mPa·s or more.

The viscosity of the resin material when producing the potting element is preferably about 10 ⁶ mPa·s or less, in particular 10 ⁵ mPa·s or less.

In particular, in order to avoid oxygen and/or water diffusion into the interior of an energy storage unit, it may be advantageous if the resin material comprises one or more fillers.

The one or more fillers can also minimize diffusion of the electrolyte out of the interior.

The one or more fillers are in particular selected from one or more of the following: inorganic fillers, in particular silicon oxide, carbonate, carbide, in particular silicon carbide, nitride, in particular metal nitride, metal oxide.

The demarcation element can have a first main surface facing or capable of facing the interior and a second main surface facing or capable of facing the exterior.

Preferably, the contacting unit can comprise a feedthrough zone in which a separating section of the separating element surrounds a feedthrough section of the current-conducting element or of the part of the current-conducting element, wherein the feedthrough section passes through the delimiting element.

The passage zone is preferably delimited by an edge. The demarcation element can preferably extend to the edge.

Preferably, the edge does not come into contact with a surface of the current-conducting element or the part of the current-conducting element.

It can be advantageous if the contacting unit for at least one current-conducting element comprises at least two feedthrough zones. In at least two of these feedthrough zones, a separating section of the separating element can surround a feedthrough section of the current-conducting element or at least a part of the current-conducting element, wherein the respective feedthrough section leads through the delimiting element.

Preferably, the contacting unit can comprise an extension zone in which an extension section of the separating element extends along at least one of the two main surfaces or parallel to at least one of the two main surfaces.

A thickness of the separating element can be measured in a thickness direction that runs orthogonally to the two main surfaces. Preferably, a thickness of the separating element at a first location, at which the separating section of the separating element surrounds a feedthrough section of the current-conducting element, is greater than a thickness of the separating element at a second location, at which an extension section of the separating element extends along at least one of the two main surfaces or parallel to at least one of the two main surfaces.

The contacting unit can preferably comprise a feed zone offset from the feed-through zone, wherein the extension section extends from the feed zone to the feed-through zone.

The feed zone can be offset from the feed zone, in particular in at least one of the two main surfaces of the demarcation element.

If the contacting unit for at least one current-conducting element comprises at least two feedthrough zones, the feed zone can be offset from all feedthrough zones, in particular in at least one of the two main surfaces of the delimiting element.

In order to determine whether the feed zone is offset from the feed-through zone in at least one of the two main surfaces, the feed-through zone and the feed zone can be projected into the respective main surface by orthogonal projection and it can be checked whether the projected feed zone is offset from the projected feed-through zone.

It can be advantageous if the contacting unit has an opening zone leading to the feed zone. The opening zone leading to the feed zone can be an opening zone leading to the feed zone for feeding a separating material.

It can be advantageous if the contact unit has an exit zone.

During the manufacture of the contact unit, a gas can escape in the exit zone. The gas can be air, for example. The gas can be displaced from a cavity during the manufacture of the contact unit. During the manufacture of the contact unit, it can be displaced by a separating material spreading in the cavity and escape in the exit zone.

The described arrangements of zones and sections can help to ensure that a cavity can be filled with a separating material in a particularly controlled manner during the manufacture of the contact unit, which can reduce or prevent gas inclusions in the separating element. In addition, it can be made possible to achieve a reliable seal, particularly in the area of the feedthrough section. This can ultimately contribute to a long service life and at the same time enable production with a particularly low level of waste.

Preferably, the contacting unit can comprise at least two extension zones, in each of which an extension section of the separating element extends along at least one of the two main surfaces or parallel to at least one of the two main surfaces.

It may be preferred if at least one extension zone extends at least partially along one of the two main surfaces or parallel to at least this one of the two main surfaces. It may be preferred if at least one other extension zone extends at least partially along the other of the two main surfaces or parallel to at least this other of the two main surfaces.

The delimiting element preferably has a separating material passage which extends through the delimiting element. The separating material passage is preferably arranged on the delimiting element offset from the feedthrough zone.

It may be advantageous if at least one extension zone extends through a separating material passage.

It can be advantageous if the separating element is formed or can be formed with or from a separating material. The separating material can, for example, be at least one of the resin materials described herein.

It can be particularly advantageous if the separating element is formed or can be formed with or from the separating material which can be fed through the opening zone leading to the feed zone.

It can be particularly advantageous if the contacting unit has the opening zone leading to the feed zone for feeding the separating material and the separating element is formed or can be formed with or from the separating material fed through the opening zone.

It may be preferred if the contacting unit comprises an insulating element.

It can be particularly advantageous if the contacting unit comprises an insulating element and the opening zone extends through the insulating element.

The insulating element can preferably be arranged between a first main surface of the delimiting element facing or capable of facing the interior and the interior. It is preferred if the insulating element is arranged on the first main surface of the delimiting element. The insulating element can be connected to the first main surface of the delimiting element.

The insulating element can be connected to the first main surface of the demarcation element, for example by separating material.

The opening zone described here can extend from an opening formed on a surface of the contact unit into the contact unit. However, it is also possible for the opening zone not to extend from an opening on a surface of the contact unit. For example, the opening zone can extend from a component of the contact unit that overlies an opening that merges into the opening zone.

The insulating element can preferably be a flat insulating element.

The insulating element is preferably a plate-shaped insulating element.

It can be particularly advantageous if the insulating element is attached to a boundary element facing surface has at least one positioning aid element.

It may be advantageous if the delimiting element has at least one positioning aid element on the first main surface.

It can be particularly advantageous if an interaction between at least one positioning aid element of the insulating element and at least one positioning aid element of the delimiting element takes place.

It can be advantageous if at least one positioning aid element of the insulating element is a projection and at least one positioning aid element of the delimiting element is a recess and the projection comes to lie in the recess.

It may be advantageous if at least one positioning aid element of the insulating element is a recess and at least one positioning aid element of the delimiting element is a projection and the projection comes to lie in the recess.

It can be advantageous if at least one positioning aid element of the insulating element is a projection and the projection extends around the current-conducting element or around the part of the current-conducting element. It can be particularly advantageous if at least one positioning aid element of the delimiting element is a recess and the recess extends around the current-conducting element or around the part of the current-conducting element.

The projection extending around the current-conducting element or around the part of the current-conducting element can come to lie in the recess. The projection and the recess can thus together define a sealing zone that extends around the current-conducting element or around the part of the current-conducting element. For example, the projection can form a bead that can function as a sealing element in the sealing zone.

Preferably, the contact unit can have an electrolyte filling opening. The electrolyte filling opening can be used to fill an electrolyte into an energy storage unit that can be produced with the contact unit.

Preferably, several components of the contacting unit can each have an electrolyte passage.

In particular, the insulating element and the demarcation element can each have an electrolyte passage.

The electrolyte passages are preferably arranged next to one another in such a way that the electrolyte passages together define the electrolyte filling opening.

An electrolyte passage can extend from an electrolyte filling recess through a component of the contacting unit.

Preferably, an electrolyte passage can extend from an electrolyte filling recess through the boundary element.

A positioning aid element can preferably be formed on the electrolyte passage. The positioning aid element can preferably be a projection. The projection can be formed opposite the electrolyte filling recess, e.g. on the delimiting element.

The positioning aid element, which can be formed at the electrolyte passage of the delimiting element, can be located in an electrolyte filling recess of the insulating element.

The projection, which may be formed at the electrolyte passage of the demarcation element, may come to lie in an electrolyte filling recess of the insulating element.

This can in particular help to ensure that the delimiting element can be fixed to the insulating element in the desired position and at the same time the two electrolyte passages come to lie on top of each other so that together they can form the electrolyte filling opening of a contacting unit.

At the same time, this can result in advantages in terms of corrosion resistance and other advantages for the manufacturing process. This is because part of the electrolyte that may not pass through the electrolyte filling opening can collect in the electrolyte filling recess and thus cannot be carried into sensitive areas of a system for the production of energy storage units, or only to a greatly reduced extent.

It can be advantageous if the current-conducting element or the part of the current-conducting element has a current-conducting element section that is spaced apart from the delimiting element. It can be advantageous if the opening zone extends through the current-conducting element section.

It may be advantageous if the pole element has the current-conducting element section which is spaced apart from the delimiting element and through which the opening zone extends.

This can enable the separating material to be supplied from the outside, for example in a very late process step of a process for producing an energy storage unit produced with the contacting unit. In particular, the interior of the resulting energy storage unit can be closed by the delimiting element and the separating material can only be supplied from the outside through the opening zone in a subsequent process step.

It may be advantageous if the connecting element has the current-conducting element section which is spaced apart from the delimiting element and through which the opening zone extends.

This can be advantageous because it creates opportunities to connect the connecting element on the inside by means of supplied separating material, e.g. to connect it on the inside of the insulating element.

It may be advantageous if the current-conducting element or the part of the current-conducting element has a current-conducting element section spaced apart from the delimiting element.

It can be particularly advantageous if the current-conducting element or the part of the current-conducting element has a current-conducting element section spaced apart from the delimiting element and the opening zone extends through the current-conducting element section, wherein a surface of the current-conducting element section faces one of the two main surfaces of the delimiting element and is spaced apart from the delimiting element.

It may be preferred if a portion of the insulating element or the separating element is arranged between the surface of the current-conducting element portion and the main surface which this surface faces.

Preferably, the current-conducting element can comprise a pole element and a connection element that can be used for electrically connecting a galvanic element to the pole element, wherein the current-conducting element section is a section of the connection element.

Advantageously, the current-conducting element can comprise a pole element and a connection element that can be used for electrically connecting a galvanic element to the pole element, wherein the current-conducting element section is a section of the pole element.

It may be advantageous if the contacting unit comprises an intermediate element which is arranged between a pole element encompassed by the current-conducting element and the delimiting element.

The intermediate element can preferably be arranged so that it electrically isolates the boundary element from the pole element.

The intermediate element can preferably be arranged such that the boundary element and the pole element do not touch each other.

The intermediate element can preferably be arranged such that the boundary element is not in direct electrical contact with the pole element.

The intermediate element may be an electrically insulating intermediate element. Alternatively, the intermediate element may be a bridging element as described herein.

It can be advantageous if the opening zone extends through the intermediate element.

It can be particularly advantageous if at least two components encompassed by the contacting unit adjoin one another in a sealing zone and/or are connected to one another.

Advantageously, the number of components encompassed by the contacting unit, which are adjacent to one another and/or connected to one another in the sealing zone, is two.

It can be advantageous if the sealing zone separates the separating element from the interior and/or the exterior.

It can be particularly advantageous if the sealing zone separates the separating element from the interior.

It can be particularly advantageous if the sealing zone separates the separating element from the outside space.

Such a sealing zone has proven to be particularly advantageous since the separating element on one side of the sealing zone can be made from a fillable separating material, e.g. the casting compound mentioned here, and the sealing zone counteracts an uncontrolled escape of separating material into the interior or the exterior. The statement that the sealing zone separates the separating element from the interior and/or the exterior can in particular mean that the sealing zone counteracts the formation of a gap through which fillable separating material could flow out.

In particular, this can lead to the entire separating mass used to produce the contact unit being available for forming the separating element and the same amount of separating material being used in a controlled manner when producing each contact unit. This can also contribute to increasing efficiency during production, increasing the service life of the resulting contact units and reducing waste during production.

It can be particularly advantageous if a first of the at least two components that adjoin one another in the sealing zone is an insulating element encompassed by the contacting unit, and a second of the at least two components that adjoin one another in the sealing zone is the current-conducting element or a part of the current-conducting element.

The insulating element is preferably arranged between a first main surface of the delimiting element facing or capable of facing the interior and the interior. It is preferred if the insulating element is arranged, e.g. connected, to the first main surface of the delimiting element.

The insulating element can be one-piece or multi-piece. It can, for example, comprise a cathode insulating part and an anode insulating part. The insulating element can have an insulating unit connection zone. In the insulating unit connection zone, several insulating parts, e.g. the cathode insulating part and the anode insulating part, can be connected to one another. They can be connected in the insulating unit connection zone in a material-locking, force-locking and/or positive-locking manner.

It can be particularly advantageous if a first of the two components that adjoin one another in the sealing zone is an insulating element encompassed by the contacting unit and the second of the two components that adjoin one another in the sealing zone is the current-conducting element or a part of the current-conducting element.

It is preferred if one of the at least two components, e.g. the current-conducting element or the part of the current-conducting element, extends through another of the at least two components, e.g. through the insulating element, and the sealing zone extends between these two components.

It is particularly advantageous if the current-conducting element extends through the insulating element and the sealing zone extends between the current-conducting element and the insulating element around the current-conducting element.

It can be particularly advantageous if at least a first of the at least two components that adjoin one another in the sealing zone, preferably the insulating element, has an expansion zone adjacent to the sealing zone, in which the at least one first component, preferably the insulating element, is expanded. The at least one first component, preferably the insulating element, can be expanded in the expansion zone in a direction along which the at least one first component, preferably the insulating element, extends around the at least one second component, preferably around the current-conducting element or around the part of the current-conducting element. Alternatively or in addition to the possibility that the at least one first of the at least two components, preferably the insulating element, has the expansion zone, at least a first of the at least two components, preferably the insulating element, can have a pressing zone adjacent to the sealing zone, in which the at least one first component, preferably the insulating element, is pressed against the at least one second component, preferably the current-conducting element.

It may be advantageous if the sealing zone is based on an interference fit of the at least two components, e.g. the insulating element and the current-conducting element.

The interference fit can lead to the described stretch zone and the described press zone being established.

It may be advantageous if the at least two components, preferably the insulating element and the current-conducting element or the insulating element and the part of the current-conducting element, are connected to one another in the sealing zone.

Advantageously, a connection existing in the sealing zone between the at least two components can be a material-locking or a form-locking connection, preferably a material-locking connection.

It may be advantageous if the at least two components, preferably the insulating element and the current-conducting element or the insulating element and the part of the current-conducting element, are connected to one another in the sealing zone by means of a connecting means or by welding.

By means of the connecting means or by welding, the at least two components in the sealing zone can be connected in a particularly materially bonded manner.

The connecting means can be selected by experts specifically for the two materials of the at least two components. The connecting The bonding agent can be, for example, an adhesive or contain an adhesive. Bonding agents and especially adhesives are known for joining a wide variety of materials.

It may be advantageous if the at least two components, preferably the insulating element and the current-conducting element or the insulating element and the part of the current-conducting element, are hot-stitched in the sealing zone.

Hot caulking can result in a surface of the insulating element being pressed firmly onto a surface of the current-conducting element or part of the current-conducting element. In addition, depending on the pressure, temperature and material of the insulating element, a material bond between the two surfaces can result.

It may be advantageous if the at least two components, preferably the insulating element and the current-conducting element or the insulating element and the part of the current-conducting element, are connected to one another in the sealing zone by means of a coating of the second component, preferably the current-conducting element or the part of the current-conducting element.

The coating preferably contains a material that is matched to the material of the insulating element. The material contained in the coating is preferably matched to the material of the insulating element in such a way that a desired sealing effect can be achieved in the transition from the insulating element to the current-conducting element or to the part of the current-conducting element.

It can be advantageous if one of the at least two components, e.g. the current-conducting element or the part of the current-conducting element, has a tapered section in the sealing zone and another of the at least two components, e.g. the insulating element, has a tapered section in the sealing zone. The two tapered sections can in particular be oriented in opposite directions.

This can lead to a particularly thin region of the tapered section of the current-conducting element or of the part of the current-conducting element coming to lie in a wide region of the tapered section of the insulating element. In addition, a wide region of the tapered section of the current-conducting element or of the part of the current-conducting element coming to lie in a thin region of the tapered section of the insulating element.

It can be particularly advantageous if the tapered sections taper in steps. An insulating element can have a first edge zone and a second edge zone on a tapered section, the first edge zone merging into the second edge zone via a step zone. The tapered section of the current-conducting element or part of the current-conducting element can have a shoulder. The shoulder can be located on the step zone.

Alternatively, or in addition to the possibility of the tapered sections tapering in stages, the tapered sections may taper continuously. For example, they may taper continuously in a conical manner.

It can be particularly advantageous if the sealing zone comprises a sealing material and/or a sealing element. The sealing material and/or the sealing element can preferably be arranged where the insulating element is arranged on the current-conducting element or on the part of the current-conducting element, e.g. on the connecting element.

It can be advantageous if one of the at least two components has a projection in the sealing zone and the other of the at least two components has a recess. The projection can be a bead, for example. The recess can be a groove, for example. It can be advantageous if the projection is arranged in the recess. It can be particularly preferred if the bead is arranged in the groove.

It can be particularly advantageous if the contacting unit has an electrically conductive bridging element and/or the separating element is electrically conductive, wherein by means of the bridging element and/or by means of the separating element there is at least one electrically conductive connection from the current-conducting element or from the part of the current-conducting element to the delimiting element.

Preferably, the contacting unit can have an electrically conductive bridging element, wherein at least one electrically conductive connection from the current conducting element or from the part of the current conducting element to the delimiting element exists by means of the bridging element. Alternatively or in addition to the possibility that the contacting unit has the electrically conductive bridging element, the separating element can be electrically conductive, wherein at least one electrically conductive connection from the current conducting element or from the part of the current conducting element to the delimiting element exists by means of the separating element.

The at least one electrically conductive connection can bridge the separating element.

• - eine Kathoden-Kontaktiereinheit sein,
• - eine Kathoden-Kontaktiereinheit umfassen oder
• - eine Kathoden-Kontaktiereinheit und eine Anoden-Kontaktiereinheit darstellen.

Vorteilhaft kann das Stromleitelement oder das Teil des Stromleielements elektrisch anbindbar sein an eine von der Energiespeichereinheit umfasste Kathode eines Elements zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie.Preferably, the contact unit

• - a cathode contact unit,
• - comprise a cathode contact unit or
• - a cathode contact unit and an anode contact unit.

Advantageously, the current conducting element or the part of the current conducting element can be electrically connectable to a cathode of an element for receiving, storing and/or providing electrical energy, which element is comprised by the energy storage unit.

This is particularly advantageous if the contacting unit has an electrically conductive bridging element and/or the separating element is electrically conductive, wherein by means of the bridging element and/or by means of the separating element there is at least one electrically conductive connection from the current-conducting element or from the part of the current-conducting element to the delimiting element.

An electrical resistance from the current conducting element to the delimiting element can preferably be 0.1 ohm to 1000 ohms, in particular 0.2 ohm to 500 ohms, particularly preferably 0.5 ohm to 100 ohms, e.g. 1 ohm to 50 ohms.

The electrically conductive bridging element can be a resistance element or can comprise a resistance element. Alternatively or additionally, the separating element can function as a resistance element.

The electrically conductive connection from the current-conducting element to the demarcation element can therefore have a low electrical conductivity. This can protect the demarcation element in particular from corrosion. The electrically conductive bridging element and/or the electrically conductive separating element can therefore act as a corrosion protection element.

In particular, if the electrical resistance from the current-conducting element to the demarcation element is in the aforementioned ranges, in addition to the aforementioned corrosion protection effect, it can be ensured that safety-relevant compensating currents can flow in the event of an insulation failure of an energy storage unit available with the contacting unit.

The corrosion protection effect can be achieved in particular if the electrically conductive connection from a cathode-side current-conducting element of an energy storage unit to the demarcation element can be established or exists.

The current-conducting element or the part of the current-conducting element can preferably be a current-conducting element provided for a cathode or a part of a current-conducting element provided for a cathode.

It is particularly preferred if the contacting unit has the electrically conductive bridging element.

Preferably, at least a portion of the bridging element can be embedded in the separating element or a part of the bridging element can extend into the separating element.

Advantageously, there can be an electrical contact between a contact zone of the current-conducting element and a contact zone of the bridging element and an electrical contact between a further contact zone of the bridging element and a contact zone of the delimiting element.

Preferably, a portion of the bridging element arranged between the contact zones of the bridging element can be embedded in the separating element.

Preferably, the bridging element may comprise an SMD component or be an SMD component.

The abbreviation SMD stands for Surface-Mounted Device. The abbreviation SMD is a common technical term in electronics. In contrast to THT components (through-hole technology), which are mounted using through-hole mounting, SMD components generally do not have wire connections. SMD components are soldered directly using solderable connection surfaces or connection legs.

Alternatively, the bridging element may comprise a THT component or be a THT component.

In connection with the invention, SMD components have proven to be particularly advantageous because they can be soldered from the outside to contact zones of the delimiting element and the current-conducting element or part of the current-conducting element in a particularly simple manner. This can also contribute to effective production and at the same time reduce waste during production. At the same time, the corrosion protection effect can contribute to an increase in service life.

It can be particularly advantageous if the delimiting element and/or the current-conducting element or the part of the current-conducting element has a recess, wherein a receiving zone extends into the recess and the bridging element is partially or completely received in the receiving zone.

It is preferred if the delimiting element and the current-conducting element or the delimiting element and the part of the current-conducting element have recesses facing one another, wherein the receiving zone extends in the recesses and the bridging element is partially or completely, preferably completely, received in the receiving zone.

Preferably, the contact zone of the current-conducting element or of the part of the current-conducting element can be arranged in its recess.

Preferably, the contact zone of the delimiting element can be arranged in its recess.

It can be particularly advantageous if the delimiting element has a contacting shoulder which is set back from an outer surface of the delimiting element, wherein the contact zone of the delimiting element is formed on the contacting shoulder.

It can be particularly advantageous if the current-conducting element or the part of the current-conducting element has a contacting shoulder which is set back from an outer surface of the current-conducting element or the part of the current-conducting element, wherein the contact zone of the current-conducting element or the part of the current-conducting element is formed on the contacting shoulder.

It can be particularly advantageous if the delimiting element and/or the current-conducting element or the delimiting element and/or the part of the current-conducting element has a contacting shoulder which is set back relative to an outer surface of the delimiting element and/or the current-conducting element or the part of the current-conducting element, wherein the contact zone of the delimiting element and/or the current-conducting element or the part of the current-conducting element is formed on the contacting shoulder.

It is preferred if the delimiting element has a contacting shoulder set back from an outer surface of the delimiting element and the current-conducting element or the part of the current-conducting element has a contacting shoulder set back from an outer surface of the current-conducting element or the part of the current-conducting element, wherein the contact zone of the delimiting element is formed on its contacting shoulder and the contact zone of the current-conducting element or the part of the current-conducting element is formed on its contacting shoulder.

Advantageously, the contact zone of the current-conducting element or of the part of the current-conducting element can be arranged in the recess of the current-conducting element or of the part of the current-conducting element and on the contacting shoulder of the current-conducting element or of the part of the current-conducting element.

Advantageously, the contact zone of the delimiting element can be arranged in the recess of the delimiting element and on the contacting shoulder of the delimiting element.

Preferably, the contacting shoulder of the delimiting element can extend from the edge which delimits the feedthrough zone.

Preferably, the contacting shoulder of the delimiting element can extend from the edge which delimits the feedthrough zone and a contact zone can be formed at a bottom of the recess.

Preferably, the contacting shoulder can form the bottom of the recess of the delimiting element or a part of the bottom of the recess of the delimiting element.

Preferably, the part of the bridging element extending into the separating element can be an attachment projection which extends into a projection receiving zone partially or completely surrounded by the separating element.

It may be preferred if the bridging element extends partially or completely around the current-conducting element or the part of the current-conducting element. It is preferred if a contact zone of the current-conducting element or the part of the current-conducting element extends partially or completely around the current-conducting element or the part of the current-conducting element and is in contact there with a contact zone of the bridging element.

It is preferred if a contact zone of the delimiting element extends partially or completely around the separating element and is there in contact with a contact zone of the bridging element.

It can be particularly advantageous if the bridging element contains or is made of an electrically conductive plastic.

It can be particularly advantageous if the bridging element contains or is made from a plastic mixed with an electrically conductive additive.

The bridging element containing or made from the electrically conductive plastic may preferably be the bridging element extending partially or completely around the current-conducting element or around the part of the current-conducting element.

The bridging element which contains or is made from the plastic mixed with the electrically conductive additive may preferably be the bridging element which extends partially or completely around the current-conducting element or around the part of the current-conducting element.

Preferably, the part of the bridging element extending into the separating element can be an attachment projection which extends into the projection receiving zone partially or completely surrounded by the separating element and thereby anchors the bridging element in the separating element.

The bridging element can be attached by means of the part extending into the separating element and can be held by the part in the overhang receiving zone.

Preferably, the separating element may contain or be made from an electrically conductive plastic.

Preferably, the separating element can contain or be made from a plastic mixed with an electrically conductive additive.

The object is achieved by an energy storage unit according to the relevant independent claim.

• - wenigstens ein Element zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie und
• - eine hierin beschriebene Kontaktiereinheit, wobei das Stromleitelement oder das Teil des Stromleitelements elektrisch angebunden ist an das Element zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie.

The energy storage unit is an energy storage unit for receiving, storing and/or providing electrical energy, the energy storage unit comprising:

• - at least one element for receiving, storing and/or providing electrical energy and
• - a contacting unit as described herein, wherein the current-conducting element or the part of the current-conducting element is electrically connected to the element for receiving, storing and/or providing electrical energy.

The element for receiving, storing and/or providing electrical energy can, for example, be a galvanic element.

The galvanic element can in particular be one of the galvanic elements that are used in rechargeable battery cells that are usually installed in energy storage devices. The energy storage devices mentioned here refer in particular to energy storage devices that are installed in motor vehicles as traction batteries or traction battery devices. The galvanic elements used therein are known to experts, which is why they will not be discussed in detail here.

Preferably, the current-conducting element can be electrically connected to the element for receiving, storing and/or providing electrical energy by means of its connecting element.

It is preferred if the contacting unit forms a housing assembly, e.g. a cover assembly, of the energy storage unit and/or the delimiting element forms a housing element of a housing of the energy storage unit.

It is preferred if the contacting unit forms a housing assembly, e.g. a cover assembly, of the energy storage unit. Alternatively or in addition to the preferred possibility that the contacting unit forms the housing assembly, e.g. the cover assembly, of the energy storage unit, the delimiting element can preferably form a housing element of a housing of the energy storage unit.

• - eine Kathoden-Kontaktiereinheit sein,
• - eine Kathoden-Kontaktiereinheit umfassen oder
• - eine Kathoden-Kontaktiereinheit und eine Anoden-Kontaktiereinheit darstellen, wobei das Stromleitelement oder das Teil des Stromleielements elektrisch angebunden ist an eine von der Energiespeichereinheit umfasste Kathode des Elements zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie.

Preferably, the contact unit

• - a cathode contact unit,
• - comprise a cathode contact unit or
• - represent a cathode contacting unit and an anode contacting unit, wherein the current conducting element or the part of the current conducting element is electrically connected to a cathode of the element included in the energy storage unit for receiving, storing and/or providing electrical energy.

The energy storage unit can preferably be an energy storage cell. The energy storage unit can preferably be a prismatic or a cylindrical energy storage cell. The energy storage unit can particularly preferably be a prismatic energy storage cell.

Prismatic and cylindrical energy storage cells are known to experts. They are two common designs of energy storage cells for the absorption, storage and/or provision of electrical energy.

The problem is solved by a kit according to the relevant independent claim.

The kit is a kit for producing a contact unit described herein.

The kit is particularly suitable for producing a contact unit as described herein.

• - ein Abgrenzungselement, wobei das Abgrenzungselement eine Durchführungszone aufweist,
• - ein Stromleitelement oder ein Teil eines Stromleitelements, wobei das Stromleitelement oder das Teil des Stromleitelements sich so in der Durchführungszone anordnen lässt, dass das Stromleitelement oder das Teil des Stromleitelements sich durch das Abgrenzungselement erstreckt, und
• - ein Bauelement, mit welchem das Stromleitelement oder das Teil des Stromleitelements in der Durchführungszone so ausrichtbar ist, dass ein die Durchführungszone begrenzender Rand nicht in Kontakt zu einer Oberfläche des Stromleitelements oder des Teils des Stromleitelements tritt.

The kit includes the following:

• - a demarcation element, wherein the demarcation element has a passage zone,
• - a current-conducting element or a part of a current-conducting element, wherein the current-conducting element or the part of the current-conducting element can be arranged in the lead-through zone such that the current-conducting element or the part of the current-conducting element extends through the demarcation element, and
• - a component with which the current-conducting element or the part of the current-conducting element can be aligned in the feedthrough zone such that an edge delimiting the feedthrough zone does not come into contact with a surface of the current-conducting element or the part of the current-conducting element.

The demarcation element can preferably be a demarcation element for demarcating an interior space of an energy storage unit from an exterior space located outside the energy storage unit.

The demarcation element can in particular be a demarcation element described in more detail here in connection with the contact unit. Since features of the demarcation element have been described in detail in connection with the contact unit, repetition will be omitted here.

The current conducting element and its parts, e.g. the pole element and the connection element, were described in more detail in connection with the contacting unit. Therefore, a repetition of descriptions of the features of the current conducting element and its parts will not be repeated here.

The component with which the current-conducting element or the part of the current-conducting element can be aligned in the feedthrough zone such that an edge delimiting the feedthrough zone does not come into contact with a surface of the current-conducting element or the part of the current-conducting element can, for example, be an insulating element.

Preferably, the demarcation element can be fixed to the insulating element.

Preferably, the current conducting element or the part of the current conducting element can be fixed or is fixed to the insulating element. The current conducting element or the part of the current conducting element can be fixed to the insulating element by means of a sealing zone described herein. In the sealing zone, the insulating element and the current conducting element can adjoin one another or be connected to one another.

It is particularly preferred if the delimiting element can be or is fixed to the insulating element by means of at least one positioning aid element described herein.

It is particularly preferred if the delimiting element can be or is fixed to the insulating element by means of at least one positioning aid element described herein and the current-conducting element or the part of the current-conducting element can be or is fixed to the insulating element by means of the sealing zone described herein.

Details of the positioning aid elements were described in more detail in connection with the contact unit. The sealing zone and its various design options were also described in more detail in connection with the contact unit. The features and advantages specified in connection with the contact unit can preferably also apply in connection with the kit.

The component with which the current-conducting element or the part of the current-conducting element can be aligned in the feedthrough zone such that an edge delimiting the feedthrough zone does not come into contact with a surface of the current-conducting element or the part of the current-conducting element can, for example, be a pole element of the current-conducting element.

The pole element can have a receptacle into which a connection element of the current-conducting element can be received.

By accommodating the connection element in the receptacle of the pole element, the connection element of the current-conducting element can be aligned in the feedthrough zone in such a way that an edge delimiting the feedthrough zone does not come into contact with a surface of the connection element of the current-conducting element.

Preferably, the delimiting element can be fixed or fixable to the pole element via an intermediate element.

In particular, the intermediate element can be located in a recess of the demarcation element and can thus be fixed to the demarcation element.

In particular, the pole element can be located in a recess of the intermediate element and can thus be fixed to the intermediate element.

Preferably, the arrangement and orientation of the current-conducting element or part of the current-conducting element can define a cavity in which a separating element can be produced.

The separating element can be produced, for example, by partially or completely filling the cavity with a separating material.

The separating material may, for example, be a potting compound or may contain a potting compound, e.g. a potting compound described herein.

Preferably, the cavity extends into the passage zone of the demarcation element.

• - eine Erstreckungszone, die sich entlang wenigstens einer der beiden Hauptoberflächen oder parallel zu wenigstens einer der beiden Hauptoberflächen des Abgrenzungselements erstreckt, und
• - eine zu der Durchführungszone versetzte Zuführzone, wobei sich die Erstreckungszone von der Zuführzone zu der Durchführungszone erstreckt.

Preferably, the delimiting element has a first main surface facing or capable of facing the interior and a second main surface facing or capable of facing the exterior, wherein the kit in an assembled state defines:

• - an extension zone extending along at least one of the two main surfaces or parallel to at least one of the two main surfaces of the delimiting element, and
• - a feed zone offset from the feed zone, the extension zone extending from the feed zone to the feed zone.

The feed zone, the feed zone and the extension zone can be zones enclosed by the cavity.

The cavity can extend through the feed zone, through the extension zone and through the lead-through zone.

Advantageously, the kit can provide more than one feedthrough zone for at least one current conducting element.

• - ein Abgrenzungselement, wobei das Abgrenzungselement für ein Stromleitelement wenigstens zwei Durchführungszonen aufweist,
• - ein Stromleitelement oder wenigstens ein Teil eines Stromleitelements, wobei das Stromleitelement oder das wenigstens eine Teil des Stromleitelements wenigstens zwei Durchführungsabschnitte aufweist, die sich so in den wenigstens zwei Durchführungszone anordnen lassen, dass das Stromleitelement oder das wenigstens eine Teil des Stromleitelements sich über die wenigstens zwei Durchführungszonen durch das Abgrenzungselement erstrecken kann, und
• - ein Bauelement, mit welchem das Stromleitelement oder das wenigstens eine Teil des Stromleitelements in den wenigstens zwei Durchführungszone so ausrichtbar sind, dass wenigstens zwei Ränder, die die wenigstens zwei Durchführungszonen begrenzen, nicht in Kontakt zu Oberflächen des Stromleitelements oder des wenigstens einen Teils des Stromleitelements treten.

For example, the kit may include:

• - a delimiting element, wherein the delimiting element has at least two feedthrough zones for a current-conducting element,
• - a current-conducting element or at least a part of a current-conducting element, wherein the current-conducting element or the at least one part of the current-conducting element has at least two lead-through sections which can be arranged in the at least two lead-through zones such that the current-conducting element or the at least one part of the current-conducting element can extend over the at least two lead-through zones through the delimiting element, and
• - a component with which the current-conducting element or the at least one part of the current-conducting element can be aligned in the at least two feedthrough zones such that at least two edges which delimit the at least two feedthrough zones do not come into contact with surfaces of the current-conducting element or of the at least one part of the current-conducting element.

The pole element can have a plurality of receptacles into which a plurality of sections of a connection element or a plurality of sections of different connection elements can be accommodated.

Of course, features described in connection with an object according to the invention can also form features of another object according to the invention described herein. Objects according to the invention are in particular the contact unit, the energy storage unit and the kit for producing a contact unit.

Further preferred features and/or advantages of the invention are the subject of the following description and the drawings of embodiments.

• 1: einen Bausatz in einem zusammengebauten Zustand;
• 2: eine Ansicht eines Abschnitts des zusammengebauten Bausatzes aus 1;
• 3: einen Abschnitt einer Ansicht des zusammengebauten Bausatzes aus 1;
• 4: die Befüllung einer Kavität des Bausatzes aus 1;
• 5: eine mit dem Bausatz aus 1 erhaltene Kontaktiereinheit;
• 6: einen Abschnitt einer Ansicht der Kontaktiereinheit aus 5;
• 7: eine perspektivische Darstellung einer Kontaktiereinheit;
• 8: eine Explosionsdarstellung eines Bausatzes zur Herstellung der Kontaktiereinheit aus 7;
• 9 bis 14: unterschiedliche Darstellungen der Kontaktiereinheit aus 7;
• 15: eine perspektivische Darstellung einer Kontaktiereinheit;
• 16: eine Explosionsdarstellung eines Bausatzes zur Herstellung der Kontaktiereinheit aus 15;
• 17 bis 24: unterschiedliche Darstellungen zur Kontaktiereinheit aus 15 und zum Bausatz aus 16;
• 25 bis 27: das Auffüllen einer Kavität eines Bausatzes zur Herstellung einer Kontaktiereinheit;
• 28: eine Explosionsdarstellung eines Bausatzes;
• 29 bis 32: weitere Darstellungen zu dem in 28 gezeigten Bausatz;
• 33: einen Bausatz;
• 34: eine Explosionsdarstellung eines Bausatzes;
• 35: den Bausatz aus 34 in perspektivischer Darstellung;
• 36 bis 41: weitere Darstellungen zu dem Bausatz aus 34 und einer daraus hergestellten Kontaktiereinheit;
• 42 bis 47: unterschiedliche Darstellungen des Abgrenzungselements des Bausatzes aus 34;
• 48 bis 52: unterschiedliche Darstellungen des Polelements des Bausatzes aus 34;
• 53 bis 57: unterschiedliche Darstellungen des Isolierelements des Bausatzes aus 34;
• 58: eine Kontaktiereinheit;
• 59: ein Überbrückungselement der Kontaktiereinheit aus 58;
• 60: die Kontaktiereinheit aus 58, ohne Überbrückungselement;
• 61: eine weitere Darstellung der Kontaktiereinheit aus 58;
• 62: eine schematische Darstellung eines Bausatzes;
• 63: einen Ausschnitt aus 62;
• 64: eine schematische Darstellung eines Bausatzes;
• 65: eine schematische Darstellung eines Bausatzes;
• 66: eine schematische Darstellung eines Bausatzes;
• 67: eine schematische Darstellung eines Bausatzes;
• 68: eine schematische Darstellung eines Bausatzes;
• 69. eine schematische Darstellung eines Bausatzes;
• 70: eine schematische Darstellung eines Bausatzes;
• 71: einen Ausschnitt aus dem Bausatz aus 70;
• 72: eine perspektivische Darstellung eines Bausatzes;
• 73: eine Explosionsdarstellung des Bausatzes aus 72;
• 74 bis 77: weitere Darstellungen des Bausatzes aus 72 und einer daraus hergestellten Kontaktiereinheit;
• 78: eine perspektivische Darstellung eines Bausatzes;
• 79: eine Explosionsdarstellung des Bausatzes aus 78;
• 80 bis 84: weitere Darstellungen des Bausatzes aus 78 und einer daraus hergestellten Kontaktiereinheit;
• 85: eine perspektivische Darstellung eines Bausatzes;
• 86: eine Explosionsdarstellung des Bausatzes aus 85;
• 87 bis 91: weitere Darstellungen des Bausatzes aus 85 und einer daraus hergestellten Kontaktiereinheit;
• 92: eine Explosionsdarstellung eines Bausatzes;
• 93 bis 95: Darstellung einer aus dem Bausatz aus 92 hergestellten Kontaktiereinheit; und
• 96: eine schematische vereinfachte Darstellung einer Kontaktiereinheit.

The drawings show:

• 1 : a kit in an assembled state;
• 2 : a view of a section of the assembled kit from 1 ;
• 3 : a section of a view of the assembled kit from 1 ;
• 4 : filling a cavity of the kit from 1 ;
• 5 : one with the kit from 1 preserved contact unit;
• 6 : a section of a view of the contact unit from 5 ;
• 7 : a perspective view of a contact unit;
• 8 : an exploded view of a kit for producing the contact unit from 7 ;
• 9 to 14 : different representations of the contact unit from 7 ;
• 15 : a perspective view of a contact unit;
• 16 : an exploded view of a kit for producing the contact unit from 15 ;
• 17 to 24 : different representations of the contact unit from 15 and to the kit from 16 ;
• 25 to 27 : filling a cavity of a kit to produce a contact unit;
• 28 : an exploded view of a kit;
• 29 to 32 : further illustrations of the 28 kit shown;
• 33 : a kit;
• 34 : an exploded view of a kit;
• 35 : the kit from 34 in perspective view;
• 36 to 41 : further illustrations of the kit from 34 and a contact unit made from it;
• 42 to 47 : different representations of the demarcation element of the kit from 34 ;
• 48 to 52 : different representations of the pole element of the kit from 34 ;
• 53 to 57 : different representations of the insulating element of the kit from 34 ;
• 58 : a contact unit;
• 59 : a bridging element of the contact unit made of 58 ;
• 60 : the contact unit from 58 , without bridging element;
• 61 : another representation of the contact unit from 58 ;
• 62 : a schematic representation of a kit;
• 63 : an excerpt from 62 ;
• 64 : a schematic representation of a kit;
• 65 : a schematic representation of a kit;
• 66 : a schematic representation of a kit;
• 67 : a schematic representation of a kit;
• 68 : a schematic representation of a kit;
• 69 . a schematic representation of a kit;
• 70 : a schematic representation of a kit;
• 71 : a section of the kit from 70 ;
• 72 : a perspective view of a kit;
• 73 : an exploded view of the kit from 72 ;
• 74 to 77 : further illustrations of the kit from 72 and a contact unit made from it;
• 78 : a perspective view of a kit;
• 79 : an exploded view of the kit from 78 ;
• 80 to 84 : further illustrations of the kit from 78 and a contact unit made from it;
• 85 : a perspective view of a kit;
• 86 : an exploded view of the kit from 85 ;
• 87 to 91 : further illustrations of the kit from 85 and a contact unit made from it;
• 92 : an exploded view of a kit;
• 93 to 95 : Illustration of a kit from 92 manufactured contact unit; and
• 96 : a simplified schematic representation of a contact unit.

Identical or functionally equivalent elements are provided with the same reference numerals in all figures.

1 shows schematically a kit 100 for producing a contact unit 102. The kit comprises a demarcation element 104. The demarcation element 104 serves to demarcate an interior space 106 of an energy storage unit from an exterior space 108 located outside the energy storage unit.

The demarcation element 104 has a feedthrough zone 110.

The kit 100 also includes a current conducting element 112. The current conducting element 112 is made up of several parts. The current conducting element 112 includes a pole element 114, which can form a pole 116 of an energy storage unit, and a connection element 118. The connection element 118 can be used to electrically connect a galvanic element to the pole element 114. The connection element 118 is an arrester 120.

Out of 1 It can be clearly seen that the connection element 118, which forms part 113 of the current-conducting element 112, can be arranged in the feedthrough zone 110 such that the current-conducting element 112 or its connection element extends through the delimiting element 104.

The kit 100 also comprises a component 122 with which the discharge element 118, which forms part of the current-conducting element 112, can be aligned in the feedthrough zone 110 such that an edge 124 delimiting the feedthrough zone 110 does not come into contact with a surface 126 of the connecting element 118.

The pole 116 can form a terminal 128 of the energy storage unit that can be manufactured with the kit 100.

The component 122, with which the connection element 118 can be aligned in the feedthrough zone 110, is an insulating element 130.

The kit 100 comprises a further component 122. The further component 122 is an intermediate element 132. The intermediate element 132 is arranged between the pole element 114 encompassed by the current conducting element 112 and the demarcation element 104. The intermediate element 132 can, for example, be arranged such that it electrically insulates the demarcation element 104 from the pole element 114.

The described arrangement and alignment of the connection element 118 of the current conducting element 112 defines a cavity 134. As will become clear from the following descriptions of the figures, a separating element can be produced in the cavity. The separating element can be produced by partially or completely filling the cavity 134 with a separating material, e.g. a potting compound.

In the assembled state of kit 100, which is in 1 As shown, the boundary element 104 has a first major surface 136 facing the interior 106 and a second major surface 138 facing the exterior 108. The kit defines an extension zone 140 that extends along the second major surface 138 of the boundary element 104. The kit 100 also defines a feed zone 142 offset from the feed-through zone 110, the extension zone 140 extending from the feed zone 142 to the feed-through zone 110.

2 shows a view of a section of the 1 shown kit 100. The insulating element 130 faces the viewer. An opening 144 faces the viewer. An opening zone 146 extends from the opening 144 to the feed zone 142.

The opening zone 146 is in 1 can also be clearly seen there, a section of the connection element 118 extending essentially parallel to the insulating element 130.

3 shows the section that is also in 2 is shown, whereby the viewer in 3 the pole element 114 is facing. 3 shows that the connection element 118 extends into a receptacle 147 of the pole element 114 and the pole element 114 is fixed to the portion of the connection element 118 received in the receptacle 147.

3 also shows an area of the intermediate element 132 not covered by the pole element 114.

The delimiting element 104 can form a housing element 148 of a housing of the energy storage unit. It can be, for example, a cover element 150, which can be designed as a flat element 152, in particular as a sheet metal element 154 or as a cover sheet element 156.

4 illustrates the filling of the cavity 134 with a separating material. A separating material feed device 158 is attached to the opening 144. The separating material feed device 158 is a casting compound feed device 160. The separating material feed device 158 is not completely shown. Of this device, only a head region 164 equipped with a feed channel 162 is shown.

The feed channel can be attached to the opening 144, whereby separating material can be guided through the feed channel 162 and the opening 144 into the opening zone 146. The separating material is guided further via the opening zone through the feed zone 142 and the extension zone 140 into the feed-through zone 110.

The contact unit 102 thus obtained is in 5 shown schematically.

The in 5 The contact unit 102 shown is a contact unit for an energy storage unit for receiving, storing and/or providing electrical energy.

The contacting unit 102 comprises a delimiting element 104. The delimiting element 104 can serve to delimit an interior space 106 of the energy storage unit that can be produced with the contacting unit 102 from an exterior space 108 located outside the energy storage unit.

The contacting unit 102 comprises a current conducting element 112. The current conducting element 112 extends through the demarcation element 104. An electrical current can be conducted through the demarcation element 104 via the current conducting element 112.

The contacting unit 102 comprises a separating element 166. The separating element 166 separates the current-conducting element 112 from the demarcation element 104.

The delimiting element 104 has a first main surface 136 facing the interior 106 and a second main surface 138 facing the exterior 108.

The contacting unit 102 comprises a feedthrough zone 110. In the feedthrough zone 110, a separating section 168 of the separating element 166 surrounds a feedthrough section 170 of the current-conducting element 112. The feedthrough section 170 leads through the delimiting element 104.

The contacting unit 102 comprises an extension zone 140. In the extension zone 140, an extension section 172 of the separating element 166 extends along the second main surface 138.

The contacting unit 102 comprises a feed zone 142 offset from the feed-through zone 110. The extension section 172 extends from the feed zone 142 to the feed-through zone 110.

If the assembled kit, as in 4 illustrated, in which the cavity 134 is filled with a separating material in such a way that the insulating element 130 points upwards, gases in the cavity 134, e.g. air, can escape upwards in the area of the feedthrough zone 110 through an outlet zone 174. In this way, gas inclusions in the resulting separating element 166 can be largely avoided, which ultimately increases the longevity of an energy storage unit.

6 shows a section of the contact unit 102, which according to 4 and 5 The insulating element 130 is facing the viewer, and it can be clearly seen that the separating element extends from the opening 144 to the exit zone 174.

7 shows a contact unit 102 in perspective view.

8 shows a kit 100. The 7 The contact unit 102 shown is provided with the kit 100 from 8 The kit 100 comprises two pole elements 114. The pole elements 114 can form poles 116 of an energy storage unit available with the aid of the kit.

The pole element 114 shown on the left can form a positive pole. The pole element 114 shown on the right can form a negative pole. The two poles 116 can form, for example, terminals 128 of the energy storage unit available with the kit 100.

The two pole elements 114 each have a receptacle 147. In an assembled state of the kit 100, a section of each of the two connection elements 118 also included in the kit can be accommodated in one of the receptacles 147.

The connection elements 118 can be used for the electrical connection of a galvanic element to the respective pole element 114.

The connection elements 118 are arresters 120. One of the connection elements 118 can function as an anode arrester 176. The other of the connection elements 118 can function as a cathode arrester 178.

The kit 100 also includes an insulating element 130, a demarcation element 104, a bursting element 180 and two intermediate elements 132.

The insulating element 130 is made up of several parts. The insulating element 130 comprises a cathode insulating part 182 and an anode insulating part 184. The cathode insulating part 182 and the anode insulating part 184 can be connected to one another in an insulating part connection zone 186, e.g. can be connected to one another in a form-fitting manner.

The insulating member 130 includes two openings 144. One of the openings 144 is a cathode-side opening. The other opening 144 is an anode-side opening.

In the assembled state, the kit 100 has two cavities 134, an anode-side cavity 134 and a cathode-side cavity 134. Each of the two cavities 134 can be filled with a separating material, e.g. a potting compound, through one of the openings 144.

For example, one of the bursting elements 180 described in the patent application WO 2021/245167 A1 described bursting devices.

The delimiting element 104 has two feedthrough zones 110. The delimiting element 104 also has an electrolyte filling opening 188. The two feedthrough zones 110 are each surrounded by an edge 124 delimiting the respective feedthrough zone 110.

In the assembled state of the kit 100, a pole element 114 and a connection element 118 each represent parts of a current-conducting element 112.

One connection element can be arranged in each feedthrough zone 110 such that the connection element 118 extends through the demarcation element 104.

When assembling the kit, a connection element can be arranged in the receptacle 147 of the pole element in such a way that the respective connection element 118 can be aligned in the respective feedthrough zone 110 in such a way that an edge 124 delimiting the feedthrough zone 110 does not come into contact with a surface 126 of the respective connection element 118.

9 to 14 show different, partly schematic views of the 8 Contact unit 102 available in the kit 100 shown.

In 9 the boundary element 104 and the pole elements 114 face the viewer. 9 also shows the connection elements 118 recorded in the two images 147.

In addition, 9 the electrolyte filling opening 188, the bursting element 180 and a part of each of the two intermediate elements 132 can be seen.

In 10 the insulating element 130 faces the viewer. 10 also shows the electrolyte filling opening 188, the bursting element 180, which is partially covered by sections of the insulating element 130, areas of the connection elements 118 facing the viewer, and the openings 144.

11 shows a cross-section through 9 along the line XI-XI. 11 also shows the openings 144. Opening zones 146 extend from the openings 144 to the two feed zones 142 also shown.

12 and 13 show enlarged sections of the 11 .

In particular, it is clear from the two enlarged sections shown that the contacting unit 102 comprises two feedthrough zones 110, two extension zones 140 and two feed zones 142. In the feedthrough zones 110, a separating section 168 of the respective separating element 166 surrounds a feedthrough section 170 of the respective current-conducting element 112. The respective feedthrough section 170 leads through the delimiting element 104. In the respective extension zone 140, an extension section 172 of the separating element 166 extends along the first main surface 136 of the delimiting element 104.

Unlike, for example, the contact unit 102 from 5 In the contact unit shown here, the opening zone does not extend through the insulating element 130 and through the delimiting element 104, but only through the insulating element 130. Consequently, a separating material that can be fed through the opening can only spread along the first main surface 136 of the delimiting element 104. Only after the separating material has also spread through the feedthrough zone 110 does it reach the second main surface 138 of the delimiting element 104 and can also spread along this second main surface 138.

14 shows another view of the contact unit 102. The viewer’s line of sight runs in the view of the 14 along the two main surfaces 136 and 138 of the boundary element 104. 14 shows the pole elements 114, the intermediate elements 132, the boundary element 104, the insulating element 130 and the openings 144.

15 shows another contact unit 102.

16 shows a kit 100 with which the 15 The contact unit 102 shown in 16 The kit shown comprises two pole elements 114, two intermediate elements 132, a delimitation element 104, a bursting element 180, an insulating element 130 and two connection elements 118.

The pole elements 114 each have two receptacles 147. The delimitation element 104 has two feedthrough zones 110 for each pole element 114. The feedthrough zones are each delimited by an edge 124.

In an assembled state of the kit 100, the pole elements 114 can each function as a component 122 with which the connection elements 118 can be aligned simultaneously in two feedthrough zones 110 in such a way that the edge 124 delimiting the respective feedthrough zone 110 does not come into contact with a surface 126 of the respective connection element 118.

The 17 to 23 show different views of the 15 shown contact unit 102, which is connected to the 16 shown kit 100 is available.

In 17 the two pole elements 114, their receptacles 147, the connection elements 118 fixed in the receptacles, the second main surface 138 of the delimitation element 104 and the bursting element 180 are facing the viewer. In 17 The electrolyte filling opening 188 and an area of the intermediate elements 132 which is not covered by the pole elements 114 can also be seen.

In 18 the insulating element 130 is facing the viewer. Also visible are the areas of the connection elements 118 facing the viewer, the openings 144, the electrolyte filling opening 188 and the bursting element 180, which is partially covered by sections of the insulating element 130.

19 shows a cross-section through 17 along the line XIX-XIX. In 19 the current conducting elements 112 can be clearly seen. They each comprise the pole element 114 and the connection element 118. Here and in other figures, a pole element 114 and an associated connection element 118 are each parts 113 of a current conducting element 112.

In 20 only the delimiting element 104 is shown. All other components of the contact unit 102 have been omitted. In 20 the delimiting element 104 is shown in perspective. A first main surface 136 faces the viewer, on which the insulating element 130 is arranged in the assembled state.

20 shows the four implementation zones 110, which have already been discussed in connection with 16 The first main surface 136 extends through four recesses 190. Two of the recesses 190 and the feedthrough zones 110 are arranged in a cathode zone 192 intended for the formation of a cathode. Two of the recesses 190 and the feedthrough zones 110 are arranged in an anode zone 194 intended for the formation of an anode.

One of the two recesses 190 arranged in the cathode zone 192 forms a feed zone 142. One of the two recesses 190 arranged in the anode zone 194 forms a feed zone 142.

In the cathode zone 192, an extension zone 140 in the recess 190, which forms the feed zone 142, extends along the first main surface 136.

In the anode zone 194, an extension zone 140 in the recess 190, which forms the feed zone 142, extends along the first main surface 136.

The extension zone extends from the respective recess 190 through a separating material passage 196 to the second main surface 138 of the delimiting element 104. The second main surface 138 of the delimiting element 104 is in 20 not visible since it extends along a rear side of the demarcation element 104 facing away from the viewer.

21 shows a perspective view of a section through the contacting unit 102, wherein only the delimiting element 104 and the insulating element 130 are shown. The section is made through the cathode zone 192.

21 shows a short section of the second main surface 138 of the delimiting element 104.

21 also shows the two separating material passages 196 arranged in the cathode zone 192. 21 also shows the feed zone 142 and the extension zone 140, which have already been mentioned in connection with 20 was discussed in more detail.

22 corresponds 21 , where in 22 In addition, the intermediate element 132 is shown. In 22 It can be seen that the extension zone extends through the separating material passage 196 up to the feedthrough zone 110.

23 shows a view of the contact unit 102 along the two main surfaces 136 and 138. 23 the two pole elements 114, the two intermediate elements 132, the boundary element 104 and the insulating element 130.

24 corresponds 21 , whereby the viewer in 24 only the cut surface is facing. In addition, in 24 Additionally, a separating element 166 is shown.

In 24 It can be clearly seen that in the extension zone 140 an extension section 172 of the separating element 166 extends at least along the first main surface 136 of the delimiting element.

The extension section 172 extends from the feed zone 142 to the feed zone 110. The feed zone is in the 21 and 22 to recognize in the 24 but covered by the separating element.

24 shows a cross-section through 17 along the line XXIII-XXIII. From the section shown there, it is particularly clear that the separating element 166 extends from one of the two openings 144 of the cathode zone 192 to the other opening 144 of the cathode zone 192. If the 16 If the kit shown is aligned in an assembled state with the insulating element facing upwards, the two openings 144 of the insulating element are accessible from above. Separating material can be used, for example, as shown in 4 indicated, through one of the two openings 144, fill a cavity 134 defined by the assembled kit and the separating material is fed through one opening until the separating material reaches the other opening 144. A gas present in the cavity until the separating material is fed, e.g. air, can be displaced from the cavity by the separating material and escape through one of the two openings 144, which can thus function as an exit zone 174, which in connection with 4 was described.

25 shows a kit 100. The 25 Kit 100 shown differs from the one in 1 The kit 100 shown only differs in the positioning of the opening 144. While the 1 While the component set shown in Fig. 1 provides an opening extending from the insulating element 130, the opening in the component set shown in Fig. 1 extends 25 illustrated kit 100 by the pole element 114.

The opening zone 146 extends in the kit 100 according to 25 not by the insulating element 130, but by a current-conducting element section 198 of the current-conducting element 112 spaced apart from the delimiting element 104.

26 corresponds 25 , where in 26 In addition, the separating material feed device 158 is shown. The structure and representation of the separating material feed device 158 were described in connection with 4 described. However, in 26 a supply of the separating material from below is provided, since the opening zone 146 extends through the current conducting element section 198.

The exit zone 174 is designed in the same way as in 4 so that air displaced by the supplied separation material can escape in a controlled manner.

27 shows a contact unit 102. The contact unit 102 is according to 26 from the in 25 shown component set 100. The components in 27 The contact unit 102 shown corresponds to the one in 5 shown contact unit 102, wherein the opening zone 146 extends in a different direction.

In the 28 to 32 A further contact unit 102 and a kit 100 suitable for its manufacture are shown. The 29 to 32 The contact unit 102 shown comprises a delimiting element 104, two current-conducting elements 112, an insulating element 130, two intermediate elements 132 and two separating elements 166.

The current conducting elements 112 are multi-part current conducting elements. They each comprise a pole element 114 and a connection element 118.

The structure of the contact unit 102, which is in the 29 to 32 shown is similar to the structure of the contact unit, which is shown in the 7 and 9 to 14 is shown. In the following, the differences are described in particular.

The two current conducting elements 112 of the 29 to 32 The contacting units 102 shown each have a current-conducting element section 198 spaced apart from the delimiting element 104. The opening zone 146 extends through the respective current-conducting element section 198. In particular, the 28 , 29 and 32 clearly show that the current conducting element section 198, through which the opening zone 146 extends, is a the connection element 118 of the current conducting element 112 is formed current conducting element section 198. In contrast, the 25 to 27 Opening zones 146 which extend through current-conducting element sections 198, wherein the current-conducting element sections are current-conducting element sections 198 of the pole element 114 encompassed by the current-conducting element 112.

33 schematically indicates the possibility of feeding the separating material through the intermediate element 132. 33 shows that the contacting unit 102 or a kit 100 for producing a contacting unit can comprise an intermediate element, which can be arranged between a pole element 114 encompassed by the current conducting element 112 and the delimiting element 104. In this case, the opening zone 146 can extend through the intermediate element 132.

34 shows a kit 100 for producing a contact unit 102.

The kit 100 comprises a delimiting element 104, a part 113 of a current-conducting element 112 and a component 122.

In the 34 In the kit shown, the delimiting element 104 can be a housing element 148, just as in other kits 100 and contact units 102 described herein. The delimiting element 104 is a flat element 152. It can function as a cover element 150 and can be, for example, a sheet metal element 154 or a cover sheet element 156.

The demarcation element 104 can serve in particular to demarcate an interior space 106 of an energy storage unit from an exterior space 108 located outside the energy storage unit.

The demarcation element 104 has a feedthrough zone 110.

The pole element 114, which forms part 113 of the current-conducting element 112, can be arranged in the feedthrough zone 110 such that the pole element extends through the boundary element 104.

With the component 122, the pole element 114 can be aligned in the feedthrough zone 110 such that an edge 124 delimiting the feedthrough zone 110 does not come into contact with a surface 126 of the pole element 114.

In the 34 In the example shown, the component with which the pole element can be aligned in the feedthrough zone 110 is an insulating element 130.

The insulating element 130 and the delimiting element 104 each have an electrolyte passage 200. In an assembled state of the kit 100, the two electrolyte passages 200 lie against one another such that the two electrolyte passages 200 together define an electrolyte filling opening 188.

The kit 100 also comprises an electrically conductive bridging element 202. By means of the bridging element 202, an electrically conductive connection can be established from the pole element 114 to the boundary element 104.

The bridging element 202 is a resistance element 204. It can protect the delimiting element 104, e.g. the cover plate element 156, from corrosion and thus function as a corrosion protection element 206, in particular in the contact unit 102, which can be produced with the kit 100.

The bridging element 202 can act in the contacting unit 102 as a connecting element 208, which establishes an electrically conductive connection with a defined resistance from the pole element 114 to the demarcation element 104.

The 34 The bridging element 202 shown is an SMD component 210. The bridging element 202 has two contact zones 212. With the contact zones 212, an electrically conductive contact can be made to the pole element 114 and to the delimitation element 104. 35 shows the kit 100 in an assembled state.

Also 36 shows the kit 100 in an assembled state. A second main surface 138 of the demarcation element 104 faces the viewer. The second main surface 138 is the main surface facing the outside space 108.

The current conducting element 112, in particular the pole element 114 forming part 113 of the current conducting element 112, has an outer surface 214 which is orientable or oriented in the direction of the outer space 108. The edge 124 is spaced from the surface 126 by a gap 218. The edge 124 thus does not come into contact with the surface 126 of the pole element 114.

The delimiting element 104 has a contact shoulder 220 which is set back from an outer surface 216 of the delimiting element 104. The current-conducting element 112, in particular in particular the pole element 114 forming part 113 of the current-conducting element 112, has a contacting shoulder 222 set back from the outer surface 214 of the current-conducting element 112, in particular of the pole element 114.

A contact zone of the delimiting element 104 is formed on its contacting shoulder 220. A contact zone 212 of the current-conducting element 112, in particular of the pole element 114, is formed on its contacting shoulder 222.

The delimiting element 104 and the current-conducting element 112, in particular the pole element 114, have recesses 224 facing one another. A receiving zone 226 for receiving the bridging element 202 extends into the recesses 224.

The contact zone 212 of the current conducting element 112, in particular of the pole element 114, is arranged in its recess 224. The contact zone 212 of the delimiting element 104 is arranged in its recess 224.

The 37 to 40 show a contact unit 102, which by means of the 34 to 36 shown kit 100 is available. 37 shows a section in which it can be clearly seen that the contacting unit 102 comprises a delimiting element 104, a pole element 114, which forms part of a current-conducting element 112, and a separating element 166.

The separating element 166 separates the pole element 114 from the demarcation element 104.

The contacting unit 102 has an electrically conductive bridging element 202. By means of the bridging element 202, there is an electrically conductive connection from the pole element 114 to the delimiting element 104. The bridging element 202 thus represents an electrically conductive connecting element 208. The electrical resistance from the pole element 114 to the delimiting element 104 can be, for example, 20 ohms. The bridging element 202 can in particular be a resistance element 204. It can function as a corrosion protection element 206. The 37 The bridging element shown is the one in 34 The bridging element described in more detail is particularly 34 described SMD component.

The contacting unit 102 comprises a feedthrough zone 110. In the feedthrough zone 110, a separating section 168 of the separating element 166 surrounds a feedthrough section 170 of the pole element 114. The separating section 168, which surrounds the feedthrough section 170, runs in the gap 218 around the pole element 114 between the edge 124 and the surface 126.

The bridging element 202 is embedded in the separating element 166.

An electrical contact exists between a contact zone 212 of the pole element 114 and a contact zone 212 of the bridging element 202. An electrical contact also exists between a further contact zone 212 of the bridging element and a contact zone 212 of the demarcation element 104.

The contacting unit 102 also has positioning aid elements 228. The positioning aid elements 228 are formed on mutually facing surfaces of the delimiting element 104 and the insulating element 130. One positioning aid element 228 comprises a projection 230. The other positioning aid element 228 comprises a recess 232. The recess 232 engages in the projection 230.

The positioning aid elements 228 enable the delimiting element 104 to be positioned on the insulating element 130 in a desired position. This can in particular help to ensure that the edge 124 and the surface 126 do not come into contact with one another.

In particular 40 clearly shows that two components 122, the insulating element 130 and the pole element 114, each have a tapered section 236 at a sealing zone 234, wherein the tapered sections 236 taper in stages.

In the sealing zone 234 there is a positive connection 238 between the two components 122.

41 shows a greatly enlarged section of the 37 . In 41 It can be clearly seen that the bridging element 202 is embedded in the separating element 166 and the electrical contact is established via the contacting steps 220 and 222.

42 to 47 illustrate this already in the 34 to 41 The demarcation element 104 comprises a passage zone 110. The passage zone 110 is limited by the edge 124, which has already been described in connection with the 34 to 41 was described.

The delimiting element 104 has a recess 224. A recess 224 which has already been described in particular in connection with 36 described receiving zone 226 extends into the recess 224.

The delimiting element 104 has a contacting shoulder 220 which is set back from an outer surface 216 of the delimiting element 104.

The contacting shoulder 220 extends from the edge 124. A contact zone 212 is formed on the bottom 240 of the recess 224.

The contact shoulder 220 forms the bottom 240 of the recess 224.

This is particularly evident from the 42 , 43 and 44 recognizable, whereby the 42 a perspective view of the demarcation element 104, 43 shows a view of the boundary element 104 in which the outer surface 216 faces the viewer, and 44 a cross-section of the 43 along the line XLIV-XLIV.

45 shows an enlarged section of the 44 . From the 44 and 45 It can be clearly seen that the electrolyte passage 200 extends from an electrolyte filling recess 242 through the boundary element 104.

A positioning aid element 228 is formed on the electrolyte passage 200. The positioning aid element 228 is a projection 230. The positioning aid element 228, which is formed on the electrolyte passage 200 of the delimiting element 104, can come to rest in an electrolyte filling recess 242 of the insulating element 130. This can in particular contribute to the delimiting element 104 being able to be arranged on the insulating element 130 in the desired position and at the same time the two electrolyte passages 200 come to rest on one another so that together they can form the electrolyte filling opening 188 of a contacting unit 102. This is shown, for example, in FIG. 37 visible.

46 shows the delimiting element 104 in a further view, with the first main surface 136 facing the viewer. Also 46 shows the positioning aid element 228 which is formed on the electrolyte passage 200. 46 shows a further positioning aid element 228, which is a recess 232. The feedthrough zone 110 is arranged between the two positioning aid elements 228.

In particular from the 47 , which shows another enlarged section of the 44 shows, it can be clearly seen that the positioning aid element 228, which is not formed on the electrolyte passage 200, has a recess 232.

48 to 52 show the pole element 114 of the 37 to 41 illustrated contact unit 102. The pole element 114 forms a component 122 of the 34 to 36 shown kit 100.

The perspective view of the 48 shows the outer surface 214 of the pole element 114. It also shows the surface 126 of the pole element 114. The outer surface 214 includes a connection zone 244. The connection zone 244 can be used to make electrical contact with a consumer, e.g. an electric motor.

The pole element 114 shown has a recess 224. The recess 224 is particularly in the 49 and 50 clearly visible. In the recess 224, the surface 126 has a concave surface zone 246.

In particular 49 clearly shows that the pole element 114 has a contacting shoulder 222 set back from an outer surface 214 of the pole element 114. The contact zone 212 of the pole element 114 is formed on the contacting shoulder 222. 51 shows that an inner surface 248 of the pole element 114 is offset from the surface 126 by a shoulder 250.

The 53 to 57 illustrate the insulating element 130 of the contact unit 102 from the 37 to 41 .

The insulating element 130 has an electrolyte passage 200. A positioning aid element 228 is formed on the electrolyte passage 200. The positioning aid element 228 comprises a recess 232. A positioning aid element 228 of the delimiting element 104 can be received in the recess 232. The positioning aid element 228 of the delimiting element 104 can be a projection 230. Such a projection 230 of the delimiting element 104 was used in particular in connection with the 45 described.

The insulating element 130 has a further positioning aid element 228. The further positioning aid element 228 is a projection 230. The projection 230 of the insulating element 130 can be received in a positioning aid element 228 of a delimiting element 104. The projection 230 of the insulating element 130 can in particular be received in the 47 shown recess 232 of the delimiting element 104.

The two positioning aids 228 of the insulating element 130 are also in the 54 easy to recognize. In 54 an insulating element outer surface 252 faces the viewer.

The insulating element 130 has a tapered section 236. The tapered section 236 tapers in stages. This is particularly evident from the 56 and 57 visible. 56 shows a section through the 54 shown insulating element 130 along the line LVI-LVI. 57 shows a section of the 56 in enlarged view.

In the example shown here, the section 236 tapers from a first edge zone 254 to a first step zone 256, via the first step zone 256 to a second edge zone 258 and from the edge zone 258 via a second step zone 260 to a third edge zone 262.

From the 40 , 49 , 51 and 57 it becomes clear that the shoulder 250 of the pole element 114 can come to lie on the second step zone 260.

55 shows a view of the insulating element 130 in which an insulating element inner surface 264 faces the viewer. The insulating element inner surface 264, in an assembled energy storage unit, may face an interior space 106 of the energy storage unit.

58 shows a contact unit 102 in perspective view. The contact unit 102 comprises a delimiting element 104, a pole element 114, an insulating element 130 and an electrically conductive bridging element 202.

The contact unit 102 has an electrolyte filling opening 188. The electrolyte filling opening 188 has an electrolyte filling recess 242. The electrolyte passage 200 extends from the electrolyte filling recess 242.

By means of the bridging element 202, there is an electrically conductive connection from the pole element 114 to the boundary element 104.

There is an electrical contact 266 between the boundary element 104 and the bridging element 202 and an electrical contact 266 between the bridging element 202 and the pole element 114.

59 shows the bridging element 202 from 58 in perspective view. 60 shows all other components 122 of the 58 contact unit 102 shown.

In 60 It can be seen that the contact unit 102 consists of 58 also comprises a separating element 166. The separating element 166 separates the pole element 114 from the delimiting element 104.

The contact unit 102 comprises a feedthrough zone 110. The feedthrough zone 110 is shown in the 60 not covered by the bridging element 202. In the feedthrough zone 110, a separating section 168 of the separating element 166 surrounds a feedthrough section of the pole element 114. The feedthrough section passes through the delimiting element 104. It is in 60 essentially covered by other components and therefore not provided with reference symbols.

The surface 126 of the pole element 114 defines a contact zone 212. When the bridging element 202 is arranged as in 58 As shown, there is an electrical contact 266 between this contact zone 212 of the pole element 114 and a 59 shown contact zone 212 of the bridging element.

The second main surface 138 of the boundary element 104 forms a further contact zone 212. When the bridging element 202 is arranged as shown in 58 As shown, there is an electrical contact 266 between a further contact zone 212 of the 59 shown bridging element 202 and this contact zone 212 of the delimiting element 104.

Several parts 268 of the bridging element 202 extend in the 58 shown contact unit 102 into the separating element 166.

The parts 268 of the bridging element 202 extending into the separating element 166 are attachment projections 270. They each extend into a projection receiving zone 272. In 60 It can be clearly seen that the overhang receiving zones 272 are partially surrounded by the separating element 166. When using the 58 to 61 In the illustrated contact unit 102, the projection receiving zones are each limited in one direction by the surface 126 of the pole element 114.

The attachment projection 270 and the projection receiving zone 272 represent specific examples of interacting attachment elements 274.

61 shows the contact unit 102 from 58 in a side view. The viewer's line of sight runs along the two main surfaces 136 and 138.

62 shows a kit 100. The kit is shown in an assembled state. Only a section of the kit 100 is shown. A contact unit 102 can be produced with the kit 100.

The kit 100 comprises a delimiting element 104, a current-conducting element 112 and a component 122.

The demarcation element 104 has a feedthrough zone 110.

The current conducting element 112 is made up of several parts. It comprises a pole element 114 and a connection element 118. The connection element 118, which forms part of the current conducting element 112, can be arranged in the lead-through zone 110 such that the connection element 118 extends through the delimitation element 104. Since 62 shows the kit 100 in an assembled state, the connecting element is already arranged in this way.

With the component 122, the connection element 118 can be aligned in the feedthrough zone 110 such that an edge 124 delimiting the feedthrough zone 110 does not come into contact with a surface 126 of the connection element 118. Since 62 shows the kit 100 in an assembled state, the connecting element is already aligned in this way.

The one in 62 The kit 100 shown comprises two components 122 with which the connection element 118 can be aligned such that the edge delimiting the feedthrough zone 110 does not come into contact with the surface 126 of the connection element 118. One of these components 122 is the pole element 114. Another of these components 122 is the insulating element 130.

Thus, the connection element 118 is received in the receptacle 147 of the pole element 114 and the pole element 114 is arranged on the delimiting element 104 via the intermediate element 132. This alone can lead to the connection element 118 being able to be aligned in the feedthrough zone 110 such that the edge 124 delimiting the feedthrough zone 110 does not come into contact with the surface 126.

In addition, the connection element 118 is fixed in a sealing zone 234 on the insulating element 130 and the insulating element 130 is arranged on the delimiting element 104. This alone can lead to the connection element 118 being able to be aligned in the feedthrough zone 110 such that the edge 124 delimiting the feedthrough zone 110 does not come into contact with the surface 126.

The arrangement and orientation of the connection element 118 defines a cavity 134 in which a separating element can be produced. The separating element can be produced, for example, by filling the cavity 134 with a separating material, e.g. a potting compound.

The insulating element 130 and the connecting element 118 adjoin one another in the sealing zone 234 or are connected to one another in the sealing zone 234.

The sealing zone counteracts the escape of a separating material that can be filled into the cavity 134.

The following 63 to 71 illustrate different possibilities for the design of the sealing zone 234.

The 63 to 71 each provide that the connecting element 118 extends through the insulating element 130 and the sealing zone 234 extends between the connecting element 118 and the insulating element.

63 provides a sealing zone 234, wherein the insulating element 130 has an expansion zone 276 adjacent to the sealing zone 234. The insulating element 130 is expanded in the expansion zone. The insulating element 130 is expanded in the expansion zone 276 in a direction 278 along which the insulating element 130 extends around the connecting element 118.

The 63 The sealing zone 234 shown has a pressing zone 280 adjacent to the sealing zone 234. In the pressing zone 280, the insulating element 130 is pressed onto the connecting element 118.

The 63 The sealing zone 234 shown is based on an interference fit 282.

64 illustrates the production of a sealing zone 234, in which the insulating element 130 and the connecting element 118 are connected to one another in a material-locking manner. The sealing zone 234 can, for example, have a connecting means 284. Alternatively, the material-locking connection 238 can be produced by means of welding.

65 schematically illustrates a sealing zone 234, wherein in the sealing zone 234 the insulating element 130 and the connecting element 118 are connected to one another by hot caulking. The connection 238 is a hot caulking connection 286.

66 shows schematically a sealing zone 234, wherein the insulating element 130 and the connecting element 118 are connected to one another in the sealing zone 234. In the sealing zone 234, there is a material connection 238 between the insulating element 130 and the connecting element 118. The insulating element 130 and the connecting element 118 are connected to one another in the sealing zone 234 by means of a coating 288. The coating 288 may be a coating applied to the connecting element.

67 shows a schematic of a sealing zone 234, wherein the insulating element 130 and the connecting element 118 are positively connected to one another in the sealing zone 234. The insulating element 130 has a tapered section 236 at the sealing zone 234. The connecting element 118 also has a tapered section 236 at the sealing zone 234. The two tapered sections 236 are oriented in opposite directions. The two tapered sections 236 taper in steps. The insulating element 130 tapers from a first edge zone 254 via a step zone 256 to a second edge zone 258. The connecting element 118 has a shoulder 250 that can come to rest on the step zone 256.

68 illustrates a sealing zone 234, which corresponds to 67 illustrated sealing zone. Deviating from 67 the sections 236 taper conically.

69 illustrates a sealing zone 234, wherein the sealing zone 234 comprises a sealing material 290 and/or a sealing element 292. The sealing material 290 and/or the sealing element 292 are arranged where the insulating element 130 is arranged on the connecting element 118.

70 and 71 schematically illustrate a sealing zone 234 in which the insulating element 130 has a projection 230 and the connecting element 118 has a recess 232. The projection 230 is a bead 294. The recess 232 is a groove 296. 71 shows an enlarged section of 70 . In particular from 71 it becomes clear that the projection 230 is arranged in the recess 232. The bead 294 runs in the groove 296.

The 72 to 77 show a kit 100 for producing a contact unit 102. The kit 100 comprises a pole element 114, an intermediate element 132, a delimitation element 104, an insulating element 130 and a connection element 118.

In an assembled state of the kit 100 and in the contact unit 102 that can be produced from the kit 100, two components 122 adjoin one another in a sealing zone 234. As can be seen in particular from 74 As can be clearly seen, one of these two components 122 is the insulating element 130 and the other of these two components 122 is the delimiting element 104.

The insulating element 130 has a projection 230, which in particular in 72 can be clearly seen. The delimiting element 104 has a recess 232. The recess 232 is particularly 74 The recess 232 is a circumferential recess 232. The projection 230 is a circumferential projection 230. The projection 230 is a sealing element 298, e.g. a bead 294.

In an assembled state of the kit 100 and in the contacting unit 102 that can be produced with the kit, the circumferential projection 230 comes to lie in the circumferential recess 232, wherein the projection 230 and the recess 232 form the sealing zone 234.

In the 72 to 77 In the kit 100 shown for producing a contacting unit 102, the demarcation element 104 can serve to demarcate an interior space of an energy storage unit from an exterior space located outside the energy storage unit.

The demarcation element 104 has a feedthrough zone 110.

The connection element 118 can be arranged in the feedthrough zone 110 such that the connection element 118 extends through the demarcation element 104.

The pole element 114 represents a component 122 with which the connection element 118 can be aligned in the feedthrough zone 110 such that an edge 124 delimiting the feedthrough zone 110 does not come into contact with a surface 126 of the connection element 118. This is particularly evident from 77 can be clearly seen. The circumferential projection 230 and the circumferential recess 232 each represent a positioning aid element 228, since the position of the delimiting element 104 on the insulating element 130 is determined by the projection 230 located in the recess 232. This proved to be particularly advantageous, since a desired sealing effect and also a desired positioning aid function can be provided at the same time.

However, it is also possible to produce the mutually facing surfaces of the boundary element 104 and the insulating element 130 without recess and without projection.

The 78 to 84 show a kit 100 and a contact unit 102 that can be manufactured with this kit.

The kit 100 comprises a boundary element 104, an insulating element 130 and a current conducting element 112, which comprises a pole element 114 and a connection element 118.

The demarcation element 104 of this kit 100 also has a feed-through zone 110.

The pole element 114 can be arranged in the feedthrough zone 110 such that the pole element extends through the boundary element 104.

The insulating element 130 represents a component 122 with which the pole element can be aligned in the feedthrough zone 110 such that an edge 124 delimiting the feedthrough zone 110 does not come into contact with a surface 126 of the pole element 114.

The insulating element 130 has a current conducting element holder 300. The current conducting element holder 300 is limited by a positioning projection 302 formed on the insulating element 130. In an assembled state of the kit 100, a connecting element 118 of the current conducting element 112 comes to lie in the current conducting element holder 300. The current conducting element 112 can thus be fixed to the insulating element 130.

The delimiting element 104 and the insulating element 130 have positioning aid elements 228. The delimiting element 104 can also be fixed to the insulating element 130 using the positioning aid elements 228.

The alignability of the current conducting element 112 or its pole element 114 in the feedthrough zone 110 is based on the fixability of the current conducting element 112 and the delimiting element 104 on the insulating element 130. In particular 83 The current conducting element holder 300 can be clearly seen. The positioning aid elements 228 can also be clearly seen in this figure.

The 85 to 91 show another kit 100 and a contact unit 102 that can be produced with this kit 100. The kit 100 and the contact unit 102 according to the 85 to 91 essentially correspond to the kit 100 and the contact unit 102 according to the 78 to 84 However, an electrolyte passage 200 is additionally formed in the delimiting element 104, with which an electrolyte filling opening 188 of an energy storage unit can be realized.

In particular from the 86 and 87 It can be seen that the shape of the connecting element 118 depends on the shape of the 79 and 80 shown connection element 118. The connection element 118 shown in 90 The current conducting element holder 300 shown is adapted accordingly.

92 to 95 show a kit 100 and a contact unit 102 manufactured with the kit 100.

The kit 100 comprises a delimiting element 104, a current-conducting element 112 and an insulating element 130.

The boundary element 104, the current-conducting element 112 and the insulating element 130 are round.

The current conducting element 112 comprises a pole element 114 and a connection element 118. The pole element 114 can be arranged in a feedthrough zone 110 of the demarcation element 104 such that the pole element 114 extends through the demarcation element 104.

The insulating element 130 represents a component 122 with which the pole element 114 can be aligned in the feedthrough zone 110 such that an edge 124 delimiting the feedthrough zone 110 does not come into contact with a surface 126 of the pole element 114. The current-conducting element 112 can be fixed to the insulating element 130.

The demarcation element 104 can be fixed to the insulating element 130.

The insulating element 130 has a current conducting element receptacle 300 in which the current conducting element 112 can be fixed to the insulating element 130. The current conducting element receptacle 300 is limited by a positioning projection 302. When the current conducting element 112 is received in the current conducting element receptacle 300 of the insulating element 130, the positioning projection 302 prevents displacement of the current conducting element 112 within the current conducting element receptacle 300.

The delimiting element 104 and the insulating element 130 have positioning aid elements 228. A positioning aid element 228 of the delimiting element 104 is a projection 230.

A positioning aid element 228 of the delimiting element 104 is a recess 232. The projection 230 of the delimiting element 104 delimits the recess 232 of the delimiting element 104.

A positioning aid element 228 of the insulating element 130 is a projection 230.

The projection 230 of the insulating element 130 can come to lie in the recess 232 of the demarcation element 104.

When the delimiting element 104 is arranged on the insulating element 130, the interaction of positioning aid elements 228 of the delimiting element 104 and the insulating element 130 prevents a displacement of the delimiting element 104 relative to the insulating element 130.

In particular, the fixing of the current-conducting element 112 and the delimiting element 104 to the insulating element 130 can result in the pole element 114 being able to be aligned in the feedthrough zone 110 such that the edge 124 delimiting the feedthrough zone 110 does not come into contact with the surface 126 of the pole element 114.

In particular from 94 It can be clearly seen that in the feedthrough zone 110 of the contacting unit 102, a separating section 168 of the separating element 166 surrounds a feedthrough section 170 of the pole element, wherein the feedthrough section 170 passes through the delimiting element 104.

Out of 94 It can also be seen that in an extension zone 140 of the contacting unit 102, an extension section 172 of the separating element 166 extends along a main surface 136 of the delimiting element 104.

96 shows a contact unit 102, e.g. a cathode contact unit, for an energy storage unit for receiving, storing and/or providing electrical energy. The contact unit 102 comprises a demarcation element 104 for demarcating an interior space 106 (not shown here) of an energy storage unit from an exterior space 108 located outside the energy storage unit. The contact unit 102 comprises a current conducting element 112 or a part 113 of a current conducting element 112, wherein the current conducting element 112 or the part 113 of the current conducting element 112 extends through the demarcation element 104. An electrical current can be conducted through the demarcation element 104 via the current conducting element 112 or the part 113 of the current conducting element 112. The contacting unit 102 comprises a separating element 166, which separates the current-conducting element 112 or the part 113 of the current-conducting element 112 from the demarcation element 104.

The 96 The separating element 166 shown is electrically conductive. By means of the separating element 166, there is an electrically conductive connection from the current conducting element 112 or from the part 113 of the current conducting element 112 to the delimiting element 104. An electrical resistance from the current conducting element 112 or from the part of the current conducting element to the delimiting element 104 can be, for example, 5 ohms, 25 ohms or 40 ohms.

The 96 The separating element 166 shown can, for example, contain or be made from an electrically conductive plastic. Alternatively, it can contain or be made from a plastic mixed with an electrically conductive additive.

list of reference symbols

100

kit

102

contact unit

104

demarcation element

106

interior

108

outdoor space

110

implementation zone

112

current-conducting element

113

Part

114

pole element

116

pole

118

connection element

120

arrester

122

component

124

edge

126

surface

128

terminal

130

insulating element

132

intermediate element

134

cavity

136

first main interface

138

second main interface

140

extension zone

142

feed zone

144

opening

146

opening zone

147

Recording

148

housing element

150

cover element

152

flat element

154

sheet metal element

156

cover plate element

158

separating material feed device

160

casting compound feed device

162

feed channel

164

head area

166

separating element

168

separation section

170

implementation phase

172

extension section

174

exit zone

176

anode arrester

178

cathode arrester

180

bursting element

182

cathode insulation part

184

anode insulation part

186

insulating part connection zone

188

electrolyte filling opening

190,232

deepening

192

cathode zone

194

anode zone

196

separating material passage

198

current-conducting element section

200

electrolyte passage

202

bridging element

204

resistance element

206

corrosion protection element

208

connecting element

210

SMD component

212

contact zone

214,216

outer surface

218

gap

220, 222

contact paragraph

224

recess

226

reception zone

228

positioning aid

230

supernatant

234

sealing zone

236

Section

238

Connection

240

Floor

242

electrolyte filling recess

244

connection zone

246

concave surface zone

248

inner surface

250

Paragraph

252

insulating element outer surface

254

first peripheral zone

256

first step zone

258

second peripheral zone

260

second stage zone

262

third fringe zone

264

insulating element inner surface

266

electrical contact

268

part of a bridging element

270

mounting overhang

272

overhang receiving zone

274

attachment element

276

stretch zone

278

Direction

280

press zone

282

interference fit

284

connecting means

286

hot-staking connection

288

coating

290

sealing material

292

sealing element

294

bead

296

Nut

298

sealing element

300

current-conducting element holder

302

positioning overhang

1. 1. Kontaktiereinheit (102), bevorzugt für eine Energiespeichereinheit zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie, wobei die Kontaktiereinheit (102) Folgendes umfasst:
   • - ein Abgrenzungselement (104), bevorzugt zur Abgrenzung eines Innenraums (106) der Energiespeichereinheit von einem außerhalb der Energiespeichereinheit befindlichen Außenraum (108),
   • - ein Stromleitelement (112) oder ein Teil (113) eines Stromleitelements (112), wobei das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112) sich durch das Abgrenzungselement (104) erstreckt, wobei über das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112) ein elektrischer Strom durch das Abgrenzungselement (104) hindurch leitbar ist, und
   • - ein Separierelement (166), welches das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112) von dem Abgrenzungselement (104) separiert.
2. 2. Kontaktiereinheit (102) nach Ausführungsform 1, dadurch gekennzeichnet, dass das Abgrenzungselement (104) eine dem Innenraum (106) zugewandte oder zuwendbare erste Hauptoberfläche (136) und eine dem Außenraum (108) zugewandte oder zuwendbare zweite Hauptoberfläche (138) aufweist, wobei die Kontaktiereinheit (102) Folgendes umfasst:
   • - eine Durchführungszone (110), in der ein Separierabschnitt (168) des Separierelements (166) einen Durchführungsabschnitt (170) des Stromleitelements (112) oder des Teils (113) des Stromleitelements (112) umgibt, wobei der Durchführungsabschnitt (170) durch das Abgrenzungselement (104) hindurchführt,
   • - eine Erstreckungszone (140), in der sich ein Erstreckungsabschnitt (172) des Separierelements (166) entlang wenigstens einer der beiden Hauptoberflächen (136, 138) oder parallel zu wenigstens einer der beiden Hauptoberflächen (136, 138) erstreckt, und
   • - eine zu der Durchführungszone (110) versetzte Zuführzone (142), wobei sich der Erstreckungsabschnitt (172) von der Zuführzone (142) zu der Durchführungszone (110) erstreckt.
3. 3. Kontaktiereinheit (102) nach Ausführungsform 1 oder 2, dadurch gekennzeichnet, dass die Kontaktiereinheit (102) eine zu der Zuführzone (142) hinführende Öffnungszone (146) zur Zuführung eines Separiermaterials aufweist.
4. 4. Kontaktiereinheit (102) nach Ausführungsform 3, dadurch gekennzeichnet, dass das Separierelement (166) mit oder aus dem Separiermaterial gebildet oder bildbar ist.
5. 5. Kontaktiereinheit (102) nach Ausführungsform 3 oder 4, dadurch gekennzeichnet, dass die Kontaktiereinheit (102) ein Isolierelement (130) umfasst und die Öffnungszone (146) sich durch das Isolierelement (130) erstreckt, wobei das Isolierelement (130) bevorzugt zwischen einer dem Innenraum (106) zugewandten oder zuwendbaren ersten Hauptoberfläche (136) des Abgrenzungselements (104) und dem Innenraum (106) angeordnet sein kann, wobei es bevorzugt ist, wenn das Isolierelement (130) an der ersten Hauptoberfläche (136) des Abgrenzungselements (104) angeordnet, z. B. angebunden, ist.
6. 6. Kontaktiereinheit (102) nach Ausführungsform 3, 4 oder 5, dadurch gekennzeichnet, dass das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112) einen von dem Abgrenzungselement (104) beabstandeten Stromleitelement-Abschnitt (198) aufweist und die Öffnungszone (146) sich durch den Stromleitelement-Abschnitt (198) erstreckt.
7. 7. Kontaktiereinheit (102) nach Ausführungsform 6, dadurch gekennzeichnet, dass eine Oberfläche (126) des Stromleitelement-Abschnitts (198) einer der beiden Hauptoberflächen (136, 138) des Abgrenzungselements (104) zugewandt und von dem Abgrenzungselement (104) beabstandet ist.
8. 8. Kontaktiereinheit (102) nach Ausführungsform 6 oder 7, dadurch gekennzeichnet, dass das Stromleitelement (112) ein Polelement (114) und ein zur elektrischen Anbindung eines galvanischen Elements an das Polelement (114) verwendbares Anbindungselement (118, 274) umfasst, wobei der Stromleitelement-Abschnitt (198) ein Abschnitt des Anbindungselements (118, 274) ist.
9. 9. Kontaktiereinheit (102) nach Ausführungsform 6 oder 7, dadurch gekennzeichnet, dass das Stromleitelement (112) ein Polelement (114) und ein zur elektrischen Anbindung eines galvanischen Elements an das Polelement (114) verwendbares Anbindungselement (118, 274) umfasst, wobei der Stromleitelement-Abschnitt (198) ein Abschnitt des Polelements (114) ist.
10. 10. Kontaktiereinheit (102) nach Ausführungsform 6 oder 7, dadurch gekennzeichnet, dass die Kontaktiereinheit (102) ein Zwischenelement (132) umfasst, welches zwischen einem von dem Stromleitelement (112) umfassten Polelement (114) und dem Abgrenzungselement (104) angeordnet ist, wobei es bevorzugt so angeordnet sein kann, dass es das Abgrenzungselement (104) von dem Polelement (114) elektrisch isoliert.
11. 11. Kontaktiereinheit (102) nach Ausführungsform 10, dadurch gekennzeichnet, dass die Öffnungszone (146) sich durch das Zwischenelement (132) erstreckt.
12. 12. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen, dadurch gekennzeichnet, dass wenigstens zwei von der Kontaktiereinheit (102) umfasste Bauelemente (122) in einer Dichtzone (234) aneinander angrenzen und/oder miteinander verbunden sind.
13. 13. Kontaktiereinheit (102) nach Ausführungsform 12, dadurch gekennzeichnet, dass die Dichtzone (234) das Separierelement (166) von dem Innenraum (106) und/oder dem Außenraum (108) abtrennt.
14. 14. Kontaktiereinheit (102) nach Ausführungsform 12 oder 13, dadurch gekennzeichnet, dass ein erstes der wenigstens zwei Bauelemente (122) ein von der Kontaktiereinheit (102) umfasstes Isolierelement (130) ist und ein zweites der wenigstens zwei Bauelemente (122) das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112) ist, wobei das Isolierelement (130) bevorzugt zwischen einer dem Innenraum (106) zugewandten oder zuwendbaren ersten Hauptoberfläche (136) des Abgrenzungselements (104) und dem Innenraum (106) angeordnet sein kann, wobei es bevorzugt ist, wenn das Isolierelement (130) an der ersten Hauptoberfläche (136) des Abgrenzungselements (104) angeordnet, z. B. angebunden, ist.
15. 15. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen 12 bis 14, z. B. nach Ausführungsform 14, dadurch gekennzeichnet, dass eines der wenigstens zwei Bauelemente (122), z. B. das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112), sich durch ein anderes der wenigstens zwei Bauelemente (122), z. B. durch das Isolierelement (130), erstreckt und die Dichtzone (234) sich zwischen diesen beiden Bauelementen (122) erstreckt.
16. 16. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen 12 bis 15, z. B. nach Ausführungsform 15, dadurch gekennzeichnet, dass wenigstens ein erstes der wenigstens zwei Bauelemente (122), die in der Dichtzone aneinander angrenzen, bevorzugt das Isolierelement (130),
    • - eine an die Dichtzone (234) angrenzende Dehnzone (276) aufweist, in der das wenigstens eine erste Bauelement (122), bevorzugt das Isolierelement (130), gedehnt ist, wobei z. B. das wenigstens eine erste Bauelement (122), bevorzugt das Isolierelement (130), in der Dehnzone (276) in einer Richtung gedehnt ist, entlang der sich das wenigstens eine erste Bauelement (122), bevorzugt das Isolierelement (130), um das wenigstens eine zweite Bauelement (122), bevorzugt um das Stromleitelement (112) oder um das Teil (113) des Stromleitelements (112), erstreckt und/oder
    • - eine an die Dichtzone (234) angrenzende Presszone (280) aufweist, in der das wenigstens eine erste Bauelement (122), bevorzugt das Isolierelement (130), an das wenigstens eine zweite Bauelement (122), bevorzugt das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112), gepresst ist.
17. 17. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen 12 bis 16, z. B. nach Ausführungsform 15, dadurch gekennzeichnet, dass die wenigstens zwei Bauelemente (122), bevorzugt das Isolierelement (130) und das Stromleitelement (112) oder das Isolierelement (130) und das Teil (113) des Stromleitelements (112), in der Dichtzone (234) miteinander verbunden sind.
18. 18. Kontaktiereinheit (102) nach Ausführungsform 17, dadurch gekennzeichnet, dass eine in der Dichtzone (234) zwischen den wenigstens zwei Bauelementen (122) bestehende Verbindung (238) eine stoffschlüssige oder eine formschlüssige Verbindung (238), bevorzugt eine stoffschlüssige Verbindung (238), ist.
19. 19. Kontaktiereinheit (102) nach Ausführungsform 17 oder 18, dadurch gekennzeichnet, dass die wenigstens zwei Bauelemente (122), bevorzugt das Isolierelement (130) und das Stromleitelement (112) oder das Isolierelement (130) und das Teil (113) des Stromleitelements (112), in der Dichtzone (234) mittels eines Verbindungsmittels oder mittels Schweißung miteinander verbunden sind.
20. 20. Kontaktiereinheit (102) nach Ausführungsform 17 oder 18, dadurch gekennzeichnet, dass die wenigstens zwei Bauelemente (122), bevorzugt das Isolierelement (130) und das Stromleitelement (112) oder das Isolierelement (130) und das Teil (113) des Stromleitelements (112), in der Dichtzone (234) heißverstemmt sind.
21. 21. Kontaktiereinheit (102) nach Ausführungsform 17 oder 18, dadurch gekennzeichnet, dass die wenigstens zwei Bauelemente (122), bevorzugt das Isolierelement (130) und das Stromleitelement (112) oder das Isolierelement (130) und das Teil (113) des Stromleitelements (112), in der Dichtzone (234) mittels einer Beschichtung des zweiten Bauelements (122), bevorzugt des Stromleitelements (112), miteinander verbunden sind.
22. 22. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen 12 bis 21, dadurch gekennzeichnet, dass eines der wenigstens zwei Bauelemente (122), z. B. das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112), an der Dichtzone (234) einen sich verjüngenden Abschnitt (236) aufweist und ein anderes der wenigstens zwei Bauelemente (122), z. B. das Isolierelement (130), an der Dichtzone (234) einen sich verjüngenden Abschnitt (236) aufweist, wobei die beiden sich verjüngenden Abschnitte (236) gegensinnig orientiert sind.
23. 23. Kontaktiereinheit (102) nach Ausführungsform 22, wobei die sich verjüngenden Abschnitte (236) sich gestuft verjüngen.
24. 24. Kontaktiereinheit (102) nach Ausführungsform 22 oder 23, wobei die sich verjüngenden Abschnitte (236) sich kontinuierlich, z. B. konisch zulaufend, verjüngen.
25. 25. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen 12 bis 24, dadurch gekennzeichnet, dass die Dichtzone (234) ein Dichtmaterial (290) und/oder ein Dichtelement (292) umfasst, wobei das Dichtmaterial (290) und/oder das Dichtelement (292) bevorzugt dort angeordnet ist, wo das Isolierelement (130) am Anbindungselement (118) angeordnet ist.
26. 26. Kontaktiereinheit (102) nach einer der Ausführungsformen 12 bis 25, dadurch gekennzeichnet, dass in der Dichtzone (234) eines der wenigstens zwei Bauelemente (122) einen Überstand (230), z. B. einen Wulst (294), aufweist und das andere der beiden Bauelemente (122) eine Vertiefung (232), z. B. eine Nut (296), aufweist, wobei der Überstand (230) in der Vertiefung (232) angeordnet ist.
27. 27. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen, dadurch gekennzeichnet, dass
    • - die Kontaktiereinheit (102) ein elektrisch leitfähiges Überbrückungselement (202) aufweist und/oder
    • - das Separierelement (166) elektrisch leitfähig ist,
    wobei mittels des Überbrückungselements (202) und/oder mittels des Separierelements (166) wenigstens eine elektrisch leitfähige Verbindung von dem Stromleitelement (112) oder von dem Teil (113) des Stromleitelements (112) zu dem Abgrenzungselement (104) besteht.
28. 28. Kontaktiereinheit (102) nach Ausführungsform 27, dadurch gekennzeichnet, dass die Kontaktiereinheit
    • - eine Kathoden-Kontaktiereinheit ist,
    • - eine Kathoden-Kontaktiereinheit umfasst oder
    • - eine Kathoden-Kontaktiereinheit und eine Anoden-Kontaktiereinheit darstellt, wobei das Stromleitelement (112) oder das Teil (113) des Stromleielements (112) elektrisch anbindbar ist an eine von der Energiespeichereinheit umfasste Kathode eines Elements zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie.
29. 29. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen, dadurch gekennzeichnet, dass ein elektrischer Widerstand von dem Stromleitelement (112) oder von dem Teil des Stromleitelements zu dem Abgrenzungselement (104) 0,1 Ohm bis 1000 Ohm, insbesondere 0,2 Ohm bis 500 Ohm, besonders bevorzugt 0,5 Ohm bis 100 Ohm, z. B. 1 Ohm bis 50 Ohm, beträgt.
30. 30. Kontaktiereinheit (102) nach einer der Ausführungsformen 27 bis 29, dadurch gekennzeichnet, dass
    • - die Kontaktiereinheit (102) das elektrisch leitfähige Überbrückungselement (202) aufweist.
31. 31. Kontaktiereinheit (102) nach einer der Ausführungsformen 27 bis 30, dadurch gekennzeichnet, dass wenigstens ein Abschnitt des Überbrückungselements (202) in das Separierelement (166) eingebettet ist oder ein Teil des Überbrückungselements (202) sich in das Separierelement (166) erstreckt.
32. 32. Kontaktiereinheit (102) nach einer der Ausführungsformen 27 bis 31, dadurch gekennzeichnet, dass ein elektrischer Kontakt (266) zwischen einer Kontaktzone (212) des Stromleitelements (112) oder des Teils (113) des Stromleitelements (112) und einer Kontaktzone (212) des Überbrückungselements (202) besteht und ein elektrischer Kontakt (266) zwischen einer weiteren Kontaktzone (212) des Überbrückungselements (202) und einer Kontaktzone (212) des Abgrenzungselements (104) besteht.
33. 33. Kontaktiereinheit (102) nach Ausführungsform 32, dadurch gekennzeichnet, dass ein zwischen den Kontaktzonen (212) des Überbrückungselements (202) angeordneter Abschnitt des Überbrückungselements (202) in das Separierelement (166) eingebettet ist.
34. 34. Kontaktiereinheit (102) nach einer der Ausführungsformen 27 bis 33, dadurch gekennzeichnet, dass das Überbrückungselement (202) ein SMD-Bauteil (210) umfasst oder ein SMD-Bauteil (210) ist.
35. 35. Kontaktiereinheit (102) nach einer der Ausführungsformen 27 bis 34, dadurch gekennzeichnet, dass das Abgrenzungselement (104) und/oder das Stromleitelement (112) oder das Teil des Stromleitelements (113) eine Ausnehmung (224) aufweist, wobei sich eine Aufnahmezone (226) in die Ausnehmung (224) erstreckt und das Überbrückungselement (202) teilweise oder ganz in die Aufnahmezone (226) aufgenommen ist, wobei es bevorzugt ist, wenn das Abgrenzungselement (104) und das Stromleitelement (112) oder das Abgrenzungselement (104) und das Teil (113) des Stromleitelements (112) einander zugewandte Ausnehmungen (224) aufweisen, wobei sich die Aufnahmezone (226) in den Ausnehmungen (224) erstreckt und das Überbrückungselement (202) teilweise oder ganz in die Aufnahmezone (226) aufgenommen ist.
36. 36. Kontaktiereinheit (102) nach einer der Ausführungsformen 27 bis 35, dadurch gekennzeichnet, dass das Abgrenzungselement (104) und/oder das Stromleitelement (112) oder das Abgrenzungselement (104) und/oder das Teil (113) des Stromleitelements (112) einen gegenüber einer Außenoberfläche (214, 216) des Abgrenzungselements (104) und/oder des Stromleitelements zurückversetzten Kontaktierabsatz (220, 222) aufweist, wobei die Kontaktzone (212) des Abgrenzungselements (104) und/oder des Stromleitelements (112) oder des Teils (113) des Stromleitelements (112) an dem Kontaktierabsatz (220, 222) ausgebildet ist, wobei es bevorzugt ist, wenn das Abgrenzungselement (104) einen gegenüber einer Außenoberfläche (214, 216) des Abgrenzungselements (104) zurückversetzten Kontaktierabsatz (220, 222) aufweist und das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112) einen gegenüber einer Außenoberfläche (214, 216) des Stromleitelements (112) oder des Teils (113) des Stromleitelements (112) zurückversetzten Kontaktierabsatz (220, 222) aufweist, wobei die Kontaktzone (212) des Abgrenzungselements (104) an dessen Kontaktierabsatz (220, 222) ausgebildet ist und die Kontaktzone (212) des Stromleitelements (112) oder des Teils (113) des Stromleitelements (112) an dessen Kontaktierabsatz (220, 222) ausgebildet ist.
37. 37. Kontaktiereinheit (102) nach einer der Ausführungsformen 31 bis 36, insbesondere nach Ausführungsform 31 oder 32, dadurch gekennzeichnet, dass der sich in das Separierelement (166) erstreckende Teil des Überbrückungselements (202) ein Anbringungsüberstand (270) ist, der sich in eine teilweise oder ganz von dem Separierelement (166) umgebene Überstandaufnahmezone (272) erstreckt.
38. 38. Kontaktiereinheit (102) nach einer der Ausführungsformen 27 bis 37, insbesondere nach Ausführungsform 27 bis 32 oder 37 dadurch gekennzeichnet, dass sich das Überbrückungselement (202) teilweise oder ganz um das Stromleitelement (112) oder um das Teil (113) des Stromleitelements (112) erstreckt, wobei es bevorzugt ist, wenn eine Kontaktzone (212) des Stromleitelements (112) oder des Teils (113) des Stromleitelements (112) sich teilweise oder ganz um das Stromleitelement (112) oder um den Teil (113) des Stromleitelements (112) erstreckt und dort in Kontakt zu einer Kontaktzone (212) des Überbrückungselements (202) steht.
39. 39. Kontaktiereinheit (102) nach einer der Ausführungsformen 27 bis 38, insbesondere nach Ausführungsform 27 bis 32, 37 oder 38 dadurch gekennzeichnet, dass
    • - das Überbrückungselement (202) einen elektrisch leitfähigen Kunststoff enthält oder daraus hergestellt ist; oder
    • - das Überbrückungselement (202) einen mit einem elektrisch leitfähigen Additiv versetzen Kunststoff enthält oder daraus hergestellt ist.
40. 40. Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen, dadurch gekennzeichnet, dass
    • - das Separierelement (166) einen elektrisch leitfähigen Kunststoff enthält oder daraus hergestellt ist; oder
    • - das Separierelement (166) einen mit einem elektrisch leitfähigen Additiv versetzen Kunststoff enthält oder daraus hergestellt ist.
41. 41. Energiespeichereinheit zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie, wobei die Energiespeichereinheit Folgendes umfasst:
    • - wenigstens ein Element zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie, wobei das Element z. B. ein galvanisches Element sein kann, und
    • - eine Kontaktiereinheit (102) nach einer der vorhergehenden Ausführungsformen, wobei das Stromleitelement (112) oder das Teil (113) des Stromleielements (112) elektrisch angebunden ist an das Element zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie, wobei es bevorzugt ist, wenn
    • - die Kontaktiereinheit (102) eine Gehäusebaugruppe, z. B. eine Deckelbaugruppe, der Energiespeichereinheit bildet; und/oder
    • - das Abgrenzungselement (104) ein Gehäuseelement (148) eines Gehäuses der Energiespeichereinheit bildet.
42. 42. Energiespeichereinheit nach Ausführungsform 41, dadurch gekennzeichnet, dass die Kontaktiereinheit (102)
    • - eine Kathoden-Kontaktiereinheit ist,
    • - eine Kathoden-Kontaktiereinheit umfasst oder
    • - eine Kathoden-Kontaktiereinheit und eine Anoden-Kontaktiereinheit darstellt, wobei das Stromleitelement (112) oder das Teil (113) des Stromleielements (112) elektrisch angebunden ist an eine von der Energiespeichereinheit umfasste Kathode des Elements zur Aufnahme, Speicherung und/oder Bereitstellung elektrischer Energie.
43. 43. Bausatz (100) zur Herstellung einer Kontaktiereinheit (102) nach einer der Ausführungsformen 1 bis 40, wobei der Bausatz (100) Folgendes umfasst:
    • - ein Abgrenzungselement (104), bevorzugt zur Abgrenzung eines Innenraums (106) einer Energiespeichereinheit von einem außerhalb der Energiespeichereinheit befindlichen Außenraum (108), wobei das Abgrenzungselement (104) eine Durchführungszone (110) aufweist,
    • - ein Stromleitelement (112) oder ein Teil (113) eines Stromleitelements (112), wobei das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112) sich so in der Durchführungszone (110) anordnen lässt, dass das Stromleitelement (112) oder das Teil (113) des Stromleitelements (112) sich durch das Abgrenzungselement (104) erstreckt, und
    • - ein Bauelement (122), mit welchem das Stromleitelement (112) oder das Teil des Stromleitelements (112) in der Durchführungszone (110) so ausrichtbar ist, dass ein die Durchführungszone (110) begrenzender Rand (124) nicht in Kontakt zu einer Oberfläche (126) des Stromleitelements (112) oder des Teils des Stromleitelements (112) tritt.
44. 44. Bausatz (100) nach Ausführungsform 43, dadurch gekennzeichnet, dass sich durch die Anordnung und Ausrichtung des Stromleitelements (112) oder des Teils des Stromleitelements (112) eine Kavität (134) festlegen lässt, in der ein Separierelement (166) herstellbar ist, z. B. durch teilweise oder vollständige Auffüllung der Kavität (134) mit einem Separiermaterial, wobei das Separiermaterial z. B. eine Vergussmasse sein kann.
45. 45. Bausatz (100) nach Ausführungsform 43 oder 44, dadurch gekennzeichnet, dass das Abgrenzungselement (104) eine dem Innenraum (106) zugewandte oder zuwendbare erste Hauptoberfläche (136) und eine dem Außenraum (108) zugewandte oder zuwendbare zweite Hauptoberfläche (138) aufweist, wobei der Bausatz (100) in einem zusammengebauten Zustand Folgendes definiert:
    • - eine Erstreckungszone (140), die sich entlang wenigstens einer der beiden Hauptoberflächen (136, 138) oder parallel zu wenigstens einer der beiden Hauptoberflächen (136, 138) des Abgrenzungselements (104) erstreckt, und
    • - eine zu der Durchführungszone (110) versetzte Zuführzone (142), wobei sich die Erstreckungszone (140) von der Zuführzone (142) zu der Durchführungszone (110) erstreckt.

Certain embodiments are shown below:

1. 1. Contact unit (102), preferably for an energy storage unit for receiving, storing and/or providing electrical energy, wherein the contact unit (102) comprises:
   • - a delimiting element (104), preferably for delimiting an interior space (106) of the energy storage unit from an exterior space (108) located outside the energy storage unit,
   • - a current conducting element (112) or a part (113) of a current conducting element (112), wherein the current conducting element (112) or the part (113) of the current conducting element (112) extends through the delimiting element (104), wherein current-conducting element (112) or the part (113) of the current-conducting element (112) an electric current can be conducted through the demarcation element (104), and
   • - a separating element (166) which separates the current-conducting element (112) or the part (113) of the current-conducting element (112) from the delimiting element (104).
2. 2. Contacting unit (102) according to embodiment 1, characterized in that the delimiting element (104) has a first main surface (136) facing or capable of facing the interior (106) and a second main surface (138) facing or capable of facing the exterior (108), wherein the contacting unit (102) comprises the following:
   • - a lead-through zone (110) in which a separating section (168) of the separating element (166) surrounds a lead-through section (170) of the current-conducting element (112) or of the part (113) of the current-conducting element (112), the lead-through section (170) passing through the delimiting element (104),
   • - an extension zone (140) in which an extension section (172) of the separating element (166) extends along at least one of the two main surfaces (136, 138) or parallel to at least one of the two main surfaces (136, 138), and
   • - a feed zone (142) offset from the feed-through zone (110), wherein the extension section (172) extends from the feed zone (142) to the feed-through zone (110).
3. 3. Contacting unit (102) according to embodiment 1 or 2, characterized in that the contacting unit (102) has an opening zone (146) leading to the feed zone (142) for feeding a separating material.
4. 4. Contacting unit (102) according to embodiment 3, characterized in that the separating element (166) is formed or can be formed with or from the separating material.
5. 5. Contacting unit (102) according to embodiment 3 or 4, characterized in that the contacting unit (102) comprises an insulating element (130) and the opening zone (146) extends through the insulating element (130), wherein the insulating element (130) can preferably be arranged between a first main surface (136) of the delimiting element (104) facing or capable of facing the interior (106) and the interior (106), wherein it is preferred if the insulating element (130) is arranged, e.g. connected, to the first main surface (136) of the delimiting element (104).
6. 6. Contacting unit (102) according to embodiment 3, 4 or 5, characterized in that the current-conducting element (112) or the part (113) of the current-conducting element (112) has a current-conducting element section (198) spaced from the delimiting element (104) and the opening zone (146) extends through the current-conducting element section (198).
7. 7. Contacting unit (102) according to embodiment 6, characterized in that a surface (126) of the current-conducting element section (198) faces one of the two main surfaces (136, 138) of the delimiting element (104) and is spaced from the delimiting element (104).
8. 8. Contacting unit (102) according to embodiment 6 or 7, characterized in that the current-conducting element (112) comprises a pole element (114) and a connection element (118, 274) that can be used for electrically connecting a galvanic element to the pole element (114), wherein the current-conducting element section (198) is a section of the connection element (118, 274).
9. 9. Contacting unit (102) according to embodiment 6 or 7, characterized in that the current-conducting element (112) comprises a pole element (114) and a connection element (118, 274) that can be used for electrically connecting a galvanic element to the pole element (114), wherein the current-conducting element section (198) is a section of the pole element (114).
10. 10. Contacting unit (102) according to embodiment 6 or 7, characterized in that the contacting unit (102) comprises an intermediate element (132) which is arranged between a pole element (114) encompassed by the current-conducting element (112) and the delimiting element (104), wherein it can preferably be arranged such that it electrically insulates the delimiting element (104) from the pole element (114).
11. 11. Contacting unit (102) according to embodiment 10, characterized in that the opening zone (146) extends through the intermediate element (132).
12. 12. Contacting unit (102) according to one of the preceding embodiments, characterized in that at least two components (122) comprised by the contacting unit (102) adjoin one another and/or are connected to one another in a sealing zone (234).
13. 13. Contacting unit (102) according to embodiment 12, characterized in that the sealing zone (234) separates the separating element (166) from the interior (106) and/or the exterior (108).
14. 14. Contacting unit (102) according to embodiment 12 or 13, characterized in that a first of the at least two components (122) is an insulating element (130) comprised by the contacting unit (102) and a second of the at least two components (122) is the current-conducting element (112) or the part (113) of the current-conducting element (112), wherein the insulating element (130) can preferably be arranged between a first main surface (136) of the delimiting element (104) facing or capable of facing the interior (106) and the interior (106), wherein it is preferred if the insulating element (130) is arranged, e.g. connected, to the first main surface (136) of the delimiting element (104).
15. 15. Contacting unit (102) according to one of the preceding embodiments 12 to 14, e.g. according to embodiment 14, characterized in that one of the at least two components (122), e.g. the current-conducting element (112) or the part (113) of the current-conducting element (112), extends through another of the at least two components (122), e.g. through the insulating element (130), and the sealing zone (234) extends between these two components (122).
16. 16. Contacting unit (102) according to one of the preceding embodiments 12 to 15, e.g. according to embodiment 15, characterized in that at least a first of the at least two components (122) which adjoin one another in the sealing zone, preferably the insulating element (130),
    • - has an expansion zone (276) adjacent to the sealing zone (234), in which the at least one first component (122), preferably the insulating element (130), is expanded, wherein, for example, the at least one first component (122), preferably the insulating element (130), is expanded in the expansion zone (276) in a direction along which the at least one first component (122), preferably the insulating element (130), extends around the at least one second component (122), preferably around the current-conducting element (112) or around the part (113) of the current-conducting element (112), and/or
    • - has a pressing zone (280) adjacent to the sealing zone (234), in which the at least one first component (122), preferably the insulating element (130), is pressed against the at least one second component (122), preferably the current-conducting element (112) or the part (113) of the current-conducting element (112).
17. 17. Contacting unit (102) according to one of the preceding embodiments 12 to 16, e.g. according to embodiment 15, characterized in that the at least two components (122), preferably the insulating element (130) and the current-conducting element (112) or the insulating element (130) and the part (113) of the current-conducting element (112), are connected to one another in the sealing zone (234).
18. 18. Contacting unit (102) according to embodiment 17, characterized in that a connection (238) existing in the sealing zone (234) between the at least two components (122) is a material-locking or a form-locking connection (238), preferably a material-locking connection (238).
19. 19. Contacting unit (102) according to embodiment 17 or 18, characterized in that the at least two components (122), preferably the insulating element (130) and the current-conducting element (112) or the insulating element (130) and the part (113) of the current-conducting element (112), are connected to one another in the sealing zone (234) by means of a connecting means or by welding.
20. 20. Contacting unit (102) according to embodiment 17 or 18, characterized in that the at least two components (122), preferably the insulating element (130) and the current-conducting element (112) or the insulating element (130) and the part (113) of the current-conducting element (112), are hot-stitched in the sealing zone (234).
21. 21. Contacting unit (102) according to embodiment 17 or 18, characterized in that the at least two components (122), preferably the insulating element (130) and the current-conducting element (112) or the insulating element (130) and the part (113) of the current-conducting element (112), in the sealing zone (234) by means of a coating of the second component (122), preferably the current-conducting element (112), are connected to one another.
22. 22. Contacting unit (102) according to one of the preceding embodiments 12 to 21, characterized in that one of the at least two components (122), e.g. the current-conducting element (112) or the part (113) of the current-conducting element (112), has a tapered section (236) on the sealing zone (234) and another of the at least two components (122), e.g. the insulating element (130), has a tapered section (236) on the sealing zone (234), wherein the two tapered sections (236) are oriented in opposite directions.
23. 23. Contacting unit (102) according to embodiment 22, wherein the tapered sections (236) taper in stages.
24. 24. Contacting unit (102) according to embodiment 22 or 23, wherein the tapered sections (236) taper continuously, e.g. conically.
25. 25. Contacting unit (102) according to one of the preceding embodiments 12 to 24, characterized in that the sealing zone (234) comprises a sealing material (290) and/or a sealing element (292), wherein the sealing material (290) and/or the sealing element (292) is preferably arranged where the insulating element (130) is arranged on the connecting element (118).
26. 26. Contacting unit (102) according to one of embodiments 12 to 25, characterized in that in the sealing zone (234) one of the at least two components (122) has a projection (230), e.g. a bead (294), and the other of the two components (122) has a recess (232), e.g. a groove (296), wherein the projection (230) is arranged in the recess (232).
27. 27. Contact unit (102) according to one of the preceding embodiments, characterized in that
    • - the contacting unit (102) has an electrically conductive bridging element (202) and/or
    • - the separating element (166) is electrically conductive,
    wherein by means of the bridging element (202) and/or by means of the separating element (166) there is at least one electrically conductive connection from the current-conducting element (112) or from the part (113) of the current-conducting element (112) to the delimiting element (104).
28. 28. Contact unit (102) according to embodiment 27, characterized in that the contact unit
    • - is a cathode contact unit,
    • - comprises a cathode contact unit or
    • - a cathode contacting unit and an anode contacting unit, wherein the current conducting element (112) or the part (113) of the current conducting element (112) can be electrically connected to a cathode of an element for receiving, storing and/or providing electrical energy, which element is comprised by the energy storage unit.
29. 29. Contacting unit (102) according to one of the preceding embodiments, characterized in that an electrical resistance from the current-conducting element (112) or from the part of the current-conducting element to the delimiting element (104) is 0.1 ohm to 1000 ohms, in particular 0.2 ohm to 500 ohms, particularly preferably 0.5 ohm to 100 ohms, e.g. 1 ohm to 50 ohms.
30. 30. Contact unit (102) according to one of the embodiments 27 to 29, characterized in that
    • - the contacting unit (102) has the electrically conductive bridging element (202).
31. 31. Contacting unit (102) according to one of embodiments 27 to 30, characterized in that at least a portion of the bridging element (202) is embedded in the separating element (166) or a part of the bridging element (202) extends into the separating element (166).
32. 32. Contacting unit (102) according to one of embodiments 27 to 31, characterized in that an electrical contact (266) exists between a contact zone (212) of the current-conducting element (112) or of the part (113) of the current-conducting element (112) and a contact zone (212) of the bridging element (202) and an electrical contact (266) exists between a further contact zone (212) of the bridging element (202) and a contact zone (212) of the delimiting element (104).
33. 33. Contacting unit (102) according to embodiment 32, characterized in that a contact zone (212) of the bridging element (202) is arranged between the contact zones (212). portion of the bridging element (202) is embedded in the separating element (166).
34. 34. Contacting unit (102) according to one of embodiments 27 to 33, characterized in that the bridging element (202) comprises an SMD component (210) or is an SMD component (210).
35. 35. Contacting unit (102) according to one of embodiments 27 to 34, characterized in that the delimiting element (104) and/or the current-conducting element (112) or the part of the current-conducting element (113) has a recess (224), wherein a receiving zone (226) extends into the recess (224) and the bridging element (202) is partially or completely received in the receiving zone (226), wherein it is preferred if the delimiting element (104) and the current-conducting element (112) or the delimiting element (104) and the part (113) of the current-conducting element (112) have recesses (224) facing one another, wherein the receiving zone (226) extends in the recesses (224) and the bridging element (202) is partially or completely received in the receiving zone (226).
36. 36. Contacting unit (102) according to one of embodiments 27 to 35, characterized in that the delimiting element (104) and/or the current conducting element (112) or the delimiting element (104) and/or the part (113) of the current conducting element (112) has a contacting shoulder (220, 222) set back relative to an outer surface (214, 216) of the delimiting element (104) and/or the current conducting element, wherein the contact zone (212) of the delimiting element (104) and/or the current conducting element (112) or the part (113) of the current conducting element (112) is formed on the contacting shoulder (220, 222), wherein it is preferred if the delimiting element (104) has a contacting shoulder (220, 222) set back relative to an outer surface (214, 216) of the delimiting element (104) has a contacting shoulder (220, 222) set back from the contacting shoulder (220, 222) and the current-conducting element (112) or the part (113) of the current-conducting element (112) has a contacting shoulder (220, 222) set back from an outer surface (214, 216) of the current-conducting element (112) or the part (113) of the current-conducting element (112), wherein the contact zone (212) of the delimiting element (104) is formed on the contacting shoulder (220, 222) thereof and the contact zone (212) of the current-conducting element (112) or the part (113) of the current-conducting element (112) is formed on the contacting shoulder (220, 222) thereof.
37. 37. Contacting unit (102) according to one of embodiments 31 to 36, in particular according to embodiment 31 or 32, characterized in that the part of the bridging element (202) extending into the separating element (166) is an attachment projection (270) which extends into a projection receiving zone (272) partially or completely surrounded by the separating element (166).
38. 38. Contacting unit (102) according to one of embodiments 27 to 37, in particular according to embodiment 27 to 32 or 37, characterized in that the bridging element (202) extends partially or completely around the current-conducting element (112) or around the part (113) of the current-conducting element (112), wherein it is preferred if a contact zone (212) of the current-conducting element (112) or of the part (113) of the current-conducting element (112) extends partially or completely around the current-conducting element (112) or around the part (113) of the current-conducting element (112) and is in contact there with a contact zone (212) of the bridging element (202).
39. 39. Contact unit (102) according to one of the embodiments 27 to 38, in particular according to embodiment 27 to 32, 37 or 38, characterized in that
    • - the bridging element (202) contains or is made of an electrically conductive plastic; or
    • - the bridging element (202) contains or is made from a plastic mixed with an electrically conductive additive.
40. 40. Contact unit (102) according to one of the preceding embodiments, characterized in that
    • - the separating element (166) contains or is made of an electrically conductive plastic; or
    • - the separating element (166) contains or is made from a plastic mixed with an electrically conductive additive.
41. 41. Energy storage unit for receiving, storing and/or providing electrical energy, the energy storage unit comprising:
    • - at least one element for receiving, storing and/or providing electrical energy, wherein the element can be, for example, a galvanic element, and
    • - a contacting unit (102) according to one of the preceding embodiments, wherein the current-conducting element (112) or the part (113) of the Power conducting element (112) is electrically connected to the element for receiving, storing and/or providing electrical energy, wherein it is preferred if
    • - the contact unit (102) forms a housing assembly, e.g. a cover assembly, of the energy storage unit; and/or
    • - the delimiting element (104) forms a housing element (148) of a housing of the energy storage unit.
42. 42. Energy storage unit according to embodiment 41, characterized in that the contacting unit (102)
    • - is a cathode contact unit,
    • - comprises a cathode contact unit or
    • - a cathode contacting unit and an anode contacting unit, wherein the current conducting element (112) or the part (113) of the current conducting element (112) is electrically connected to a cathode of the element included in the energy storage unit for receiving, storing and/or providing electrical energy.
43. 43. Kit (100) for producing a contacting unit (102) according to one of embodiments 1 to 40, wherein the kit (100) comprises the following:
    • - a delimiting element (104), preferably for delimiting an interior space (106) of an energy storage unit from an exterior space (108) located outside the energy storage unit, wherein the delimiting element (104) has a feedthrough zone (110),
    • - a current conducting element (112) or a part (113) of a current conducting element (112), wherein the current conducting element (112) or the part (113) of the current conducting element (112) can be arranged in the feedthrough zone (110) such that the current conducting element (112) or the part (113) of the current conducting element (112) extends through the delimiting element (104), and
    • - a component (122) with which the current-conducting element (112) or the part of the current-conducting element (112) can be aligned in the feedthrough zone (110) such that an edge (124) delimiting the feedthrough zone (110) does not come into contact with a surface (126) of the current-conducting element (112) or the part of the current-conducting element (112).
44. 44. Kit (100) according to embodiment 43, characterized in that the arrangement and orientation of the current-conducting element (112) or the part of the current-conducting element (112) allows a cavity (134) to be defined in which a separating element (166) can be produced, e.g. by partially or completely filling the cavity (134) with a separating material, wherein the separating material can be a casting compound, for example.
45. 45. Kit (100) according to embodiment 43 or 44, characterized in that the delimiting element (104) has a first main surface (136) facing or capable of facing the interior (106) and a second main surface (138) facing or capable of facing the exterior (108), wherein the kit (100) in an assembled state defines the following:
    • - an extension zone (140) which extends along at least one of the two main surfaces (136, 138) or parallel to at least one of the two main surfaces (136, 138) of the delimiting element (104), and
    • - a feed zone (142) offset from the feed-through zone (110), wherein the extension zone (140) extends from the feed zone (142) to the feed-through zone (110).

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• WO 2021/245167 A1 [0274]

Cited non-patent literature

• DIN EN ISO 868 [0043]

Claims (19)

Contacting unit (102), preferably for an energy storage unit for receiving, storing and/or providing electrical energy, wherein the contacting unit (102) comprises the following: - a demarcation element (104), preferably for demarcating an interior space (106) of the energy storage unit from an exterior space (108) located outside the energy storage unit, - a current conducting element (112) or a part (113) of a current conducting element (112), wherein the current conducting element (112) or the part (113) of the current conducting element (112) extends through the demarcation element (104), wherein an electrical current can be conducted through the demarcation element (104) via the current conducting element (112) or the part (113) of the current conducting element (112), and - a separating element (166) which separates the current conducting element (112) or the part (113) of the current conducting element (112) separated from the demarcation element (104). Contact unit (102) according to claim 1 , characterized in that - the contacting unit (102) has an electrically conductive bridging element (202) and/or - the separating element (166) is electrically conductive, wherein by means of the bridging element (202) and/or by means of the separating element (166) there is at least one electrically conductive connection from the current-conducting element (112) or from the part (113) of the current-conducting element (112) to the delimiting element (104). Contact unit (102) according to claim 1 or 2 , characterized in that the contacting unit - is a cathode contacting unit, - comprises a cathode contacting unit or - represents a cathode contacting unit and an anode contacting unit, wherein the current conducting element (112) or the part (113) of the current conducting element (112) can be electrically connected to a cathode, comprised by the energy storage unit, of an element for receiving, storing and/or providing electrical energy. Contacting unit (102) according to one of the Claims 1 until 3 , characterized in that an electrical resistance from the current conducting element (112) or from the part of the current conducting element to the demarcation element (104) is 0.1 ohm to 1000 ohms, e.g. 1 ohm to 50 ohms. Contacting unit (102) according to one of the Claims 2 until 4 , characterized in that - the contacting unit (102) has the electrically conductive bridging element (202). Contacting unit (102) according to one of the Claims 2 until 5 , characterized in that at least a portion of the bridging element (202) is embedded in the separating element (166) or a part of the bridging element (202) extends into the separating element (166). Contacting unit (102) according to one of the Claims 2 until 6 , characterized in that an electrical contact (266) exists between a contact zone (212) of the current-conducting element (112) or of the part (113) of the current-conducting element (112) and a contact zone (212) of the bridging element (202) and an electrical contact (266) exists between a further contact zone (212) of the bridging element (202) and a contact zone (212) of the delimiting element (104). Contact unit (102) according to claim 7 , characterized in that a portion of the bridging element (202) arranged between the contact zones (212) of the bridging element (202) is embedded in the separating element (166). Contacting unit (102) according to one of the Claims 2 until 8 , characterized in that the bridging element (202) comprises an SMD component (210) or is an SMD component (210). Contacting unit (102) according to one of the Claims 2 until 9 , characterized in that the delimiting element (104) and/or the current-conducting element (112) or the part of the current-conducting element (113) has a recess (224), wherein a receiving zone (226) extends into the recess (224) and the bridging element (202) is partially or completely received in the receiving zone (226), wherein it is preferred if the delimiting element (104) and the current-conducting element (112) or the delimiting element (104) and the part (113) of the current-conducting element (112) have recesses (224) facing one another, wherein the receiving zone (226) extends in the recesses (224) and the bridging element (202) is partially or completely received in the receiving zone (226). Contacting unit (102) according to one of the Claims 2 until 10 , characterized in that the delimiting element (104) and/or the current-conducting element (112) or the delimiting element (104) and/or the part (113) of the current-conducting element (112) has a contacting shoulder (220, 222) set back from an outer surface (214, 216) of the delimiting element (104) and/or the current-conducting element, wherein the Contact zone (212) of the delimiting element (104) and/or of the current-conducting element (112) or of the part (113) of the current-conducting element (112) is formed on the contacting shoulder (220, 222), wherein it is preferred if the delimiting element (104) has a contacting shoulder (220, 222) set back relative to an outer surface (214, 216) of the delimiting element (104) and the current-conducting element (112) or the part (113) of the current-conducting element (112) has a contacting shoulder (220, 222) set back relative to an outer surface (214, 216) of the current-conducting element (112) or of the part (113) of the current-conducting element (112), wherein the contact zone (212) of the delimiting element (104) is formed on whose contacting shoulder (220, 222) is formed and the contact zone (212) of the current-conducting element (112) or of the part (113) of the current-conducting element (112) is formed on its contacting shoulder (220, 222). Contacting unit (102) according to one of the Claims 6 until 11 , especially after claim 6 or 7 , characterized in that the part of the bridging element (202) extending into the separating element (166) is an attachment projection (270) which extends into a projection receiving zone (272) partially or completely surrounded by the separating element (166). Contacting unit (102) according to one of the Claims 2 until 12 , especially after claim 2 until 7 or 12 characterized in that the bridging element (202) extends partially or completely around the current-conducting element (112) or around the part (113) of the current-conducting element (112), wherein it is preferred if a contact zone (212) of the current-conducting element (112) or of the part (113) of the current-conducting element (112) extends partially or completely around the current-conducting element (112) or around the part (113) of the current-conducting element (112) and is there in contact with a contact zone (212) of the bridging element (202). Contacting unit (102) according to one of the Claims 2 until 13 , especially after claim 2 until 7 , 12 or 13 characterized in that - the bridging element (202) contains or is made from an electrically conductive plastic; or - the bridging element (202) contains or is made from a plastic mixed with an electrically conductive additive. Contacting unit (102) according to one of the preceding claims, characterized in that - the separating element (166) contains an electrically conductive plastic or is made from it; or - the separating element (166) contains a plastic mixed with an electrically conductive additive or is made from it. Energy storage unit for receiving, storing and/or providing electrical energy, wherein the energy storage unit comprises: - at least one element for receiving, storing and/or providing electrical energy, wherein the element can be, for example, a galvanic element, and - a contacting unit (102) according to one of the preceding claims, wherein the current conducting element (112) or the part (113) of the current conducting element (112) is electrically connected to the element for receiving, storing and/or providing electrical energy, wherein it is preferred if - the contacting unit (102) forms a housing assembly, e.g. a cover assembly, of the energy storage unit; and/or - the delimiting element (104) forms a housing element (148) of a housing of the energy storage unit. Energy storage unit according to claim 16 , characterized in that the contacting unit (102) - is a cathode contacting unit, - comprises a cathode contacting unit or - represents a cathode contacting unit and an anode contacting unit, wherein the current conducting element (112) or the part (113) of the current conducting element (112) is electrically connected to a cathode of the element comprised by the energy storage unit for receiving, storing and/or providing electrical energy. Kit (100) for producing a contact unit (102) according to one of the Claims 1 until 15 , wherein the kit (100) comprises the following: - a demarcation element (104), preferably for demarcating an interior space (106) of an energy storage unit from an exterior space (108) located outside the energy storage unit, wherein the demarcation element (104) has a feedthrough zone (110), - a current conducting element (112) or a part (113) of a current conducting element (112), wherein the current conducting element (112) or the part (113) of the current conducting element (112) can be arranged in the feedthrough zone (110) such that the current conducting element (112) or the part (113) of the current conducting element (112) extends through the demarcation element (104), and - a component (122) with which the current conducting element (112) or the part of the current conducting element (112) can be aligned in the feedthrough zone (110) such that is that an edge (124) delimiting the passage zone (110) is not in contact with a surface surface (126) of the current-conducting element (112) or of the part of the current-conducting element (112). Kit (100) after claim 18 , characterized in that the arrangement and orientation of the current-conducting element (112) or of the part of the current-conducting element (112) allows a cavity (134) to be defined in which a separating element (166) can be produced, e.g. by partially or completely filling the cavity (134) with a separating material, wherein the separating material can be a casting compound, for example.

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