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WO2015121118A1 - Dispositif accumulateur d'énergie électrique et procédé de dissipation thermique d'un dispositif accumulateur d'énergie électrique - Google Patents

Dispositif accumulateur d'énergie électrique et procédé de dissipation thermique d'un dispositif accumulateur d'énergie électrique Download PDF

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Publication number
WO2015121118A1
WO2015121118A1 PCT/EP2015/052247 EP2015052247W WO2015121118A1 WO 2015121118 A1 WO2015121118 A1 WO 2015121118A1 EP 2015052247 W EP2015052247 W EP 2015052247W WO 2015121118 A1 WO2015121118 A1 WO 2015121118A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
electrical energy
connection
storage cell
storage device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2015/052247
Other languages
German (de)
English (en)
Inventor
Holger WOLFSCHMIDT
Kai Ahrent
Uwe Baumbach
Wolfgang Weydanz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2015121118A1 publication Critical patent/WO2015121118A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6553—Terminals or leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to an electrical energy storage device and a method for producing an electrical energy storage device.
  • Electrical energy storage such as a rechargeable battery
  • Such electrical energy storage devices are used in numerous technical applications. For example, find such electrical energy storage use in wholly or partially electrically powered vehicles, as storage systems to compensate for peak power in electrical energy supply networks, as storage for the buffering of renewable energy in a building and much more.
  • lithium ion batteries are known for storing the electrical energy.
  • a battery comprises a plurality of individual battery cells connected in parallel and / or in series with one another. The individual battery cells may be, for example, so-called pouche cells.
  • the individual battery cells For a long-term, problem-free operation over several years, the individual battery cells must be optimally installed in a long-term stable, mechanically strong, safe and thermally-efficient module. It is known that electrochemical processes in the interior of the battery cells may cause heating of the battery cells. In addition, due to a non-negligible ohmic resistance, a thermal power loss can also be produced at the electrical connections of the battery cells, which leads to heating of the battery cells. Depending on the ambient conditions of the cells, this leads to a more or less strong increase in temperature. In order to avoid irreversible damage to a battery cell, However, depending on the cell type of the battery cell, a predetermined temperature threshold during operation will not be exceeded.
  • German patent application DE 10 2008 010 813 A1 discloses a battery with a heat conducting plate for tempering the battery.
  • this battery several individual cells are interconnected and combined to form a cell network.
  • Each of the individual cells is surrounded by a cell housing, and each individual cell is assigned a heat conducting element.
  • the present invention provides an electrical energy storage device with an electrical energy storage cell with a connection element and a connection device with a cooling device, wherein the connection device is designed to thermally couple the cooling device with the connection element of the electrical energy storage cell. Furthermore, the present invention provides a method for warming up an electrical energy storage device with the steps of providing an electrical energy storage cell with a connection element, the providing a connection device with a cooling device, and the thermal coupling of the cooling device of the connection device with the connection element of the electrical energy storage cell.
  • the present invention is based on the finding that especially at the electrical connections of an energy storage cell, a particularly strong heating can occur.
  • a particularly strong heating can occur.
  • the heat generated within the battery cell during the electrochemical processes is conducted outward along these connecting elements.
  • the connection elements of the energy storage cell can also have an electrical resistance, which can likewise lead to heating during charging or discharging of the energy storage cell.
  • the present invention is therefore based on the idea to provide an electrical energy storage device in which the connection elements of the energy storage cells by means of a connecting device not only electrically and optionally also mechanically connected, but in the beyond also a thermal coupling of the connection elements of the energy storage cell with a Cooling device is done.
  • the cooling of the connection elements of the electrical energy storage cell can take place, for example, via a cooling device integrated in the connection device.
  • the connecting device can be equipped with a large surface. Thus, efficient dissipation of heat to the environment can be achieved through this large surface area of the connection device.
  • connection elements of the electrical energy storage cell can in each case be individually adapted to the connection elements of the energy storage cells used and to the additional framework conditions required for the installation. Therefore, in all cases an optimal Entwarmung the connection elements and thus the entire energy storage cell can be ensured. This makes it possible, the operating temperature of the electrical energy storage cells see as low as possible and for all
  • the electrical energy storage cell comprises a lithium-ion battery cell, preferably a Pouche cell.
  • a lithium-ion battery cell preferably a Pouche cell.
  • the electrical energy storage device further comprises a bus bar, wherein the connection device is adapted to the connection element electrically couple the electrical energy storage cell with the busbar.
  • the connecting device comprises a spring element or a clamping element.
  • connection elements of the electrical energy storage cells By using spring or clamping elements for coupling the connection elements of the electrical energy storage cells, a simple and reliable thermal and at the same time electrical and mechanical connection between the connection element and the connection element of the electrical energy storage cell can be achieved.
  • Spring elements allow a very simple and rapid installation of the electrical energy storage cell within the energy storage device. In this case, no further mechanical work, such as screwing, soldering, welding or the like is required. Thus, potential sources of error in further assembly can be avoided.
  • the surface of the spring element or of the clamping element is larger than the surface of the connection element of the electrical energy storage cell.
  • a cooling element is arranged on the spring element or the clamping element of the connecting device.
  • the spring element of the connecting device comprises at least two metal strips with different thermal expansion coefficients.
  • the two parallel arranged metal strips with different coefficients of thermal expansion form a bimetallic element.
  • the two metal strips with different coefficients of thermal expansion are preferably firmly connected to one another at the ends. Due to the different thermal expansion coefficients of the two metal strips, the overall arrangement bends depending on the temperature at the spring element.
  • the spring force of the spring on the connecting device is dependent on the temperature of the connecting device. In this way, it is possible that with increasing temperature of the contact pressure of the spring of the connecting device is increased.
  • the mechanical coupling and concomitantly also the thermal and electrical coupling between connecting device and connecting element of the energy storage cell can be increased.
  • connection device further comprises an electrically insulating support.
  • an electrically insulating carrier provides a stable basis for the construction and the inclusion of further components of the electrical energy storage device.
  • a bus bar can be arranged on this electrically insulating carrier.
  • the electrically insulating support can also be used for the arrangement of other components.
  • Such an electrically insulating carrier may be, for example, a plastic plate, a circuit board or another carrier made of an electrically non-conductive material.
  • the electrically insulating carrier has an opening.
  • the electrical energy storage cell is arranged on a first side of the electrically insulating support.
  • a heat sink is further arranged on a second side of the electrically insulating support.
  • the second side of the electrically insulating carrier lies opposite the first side.
  • the connection device of the electrical energy storage cell protrudes through the opening in the electrically insulating support through the carrier.
  • the electrically insulating carrier separates the electrical energy storage cell on the first side from the heat sink on the second side, so that a particularly secure operation becomes possible and the heat radiated from the heat sink is not emitted in the direction of the electrical energy storage cell.
  • connection element of the electrical energy storage cell is executed over its entire surface.
  • connection element of the electrical energy storage cell allows a particularly good Current leadership.
  • electrical resistance of the connection element can be kept low, which leads to relatively low losses and thus to the lowest possible heating of the connection element.
  • connection element of the electrical energy storage cell comprises a section with an opening.
  • the opening in the section of the connecting element is of a cooling medium
  • connection element of the electrical energy storage cell comprises a lamellar cooling structure.
  • Such a lamellar cooling structure allows a good release of heat to the environment.
  • the connection element of the electrical energy storage cell and thus the entire arrangement can be efficiently cooled, that is to say cooled.
  • connection element of the electrical energy storage cell further comprises a flow guiding device.
  • the flow guiding device is designed to influence the flow direction of the cooling medium.
  • the cooling medium By influencing the flow direction of the cooling medium, the cooling medium can be efficiently conducted past the connection elements of the electrical energy storage device. As a result, the heat dissipation can be further increased.
  • the step of providing the connection device provides a connection device with a spring element.
  • the method comprises a step of providing an electrically insulating carrier.
  • the carrier comprises an opening.
  • the method further includes a step of placing the electrical energy storage cell on a first side of the carrier.
  • the method comprises a step for passing the connection element from a first side of the carrier to a second side of the carrier opposite the first side.
  • the step of thermal coupling couples the cooling device of the connection device to the connection element of the electrical energy storage cell on the second side of the carrier.
  • FIG. 1 shows a schematic representation of the side view of an electrical energy storage cell according to an embodiment
  • FIG. 2 shows a further schematic representation of a side view of an electrical energy storage cell according to an embodiment
  • FIG. 3 shows a schematic representation of a side view of an electrical energy storage device according to an embodiment
  • Energy storage device according to an alternative embodiment
  • 6 shows a schematic representation of an electrical energy storage device according to an exemplary embodiment
  • Energy storage device shows a schematic representation of a connection element of an energy storage cell according to a further embodiment
  • connection element 9 shows a schematic representation of a connection element of an electrical energy storage cell, which is coupled to a connection device.
  • FIG. 10 shows a schematic representation of a flow chart for a method for the disarming of an electrical energy storage device, as it is based on an embodiment of the present invention.
  • FIG. 1 shows a schematic representation of an electrical energy storage cell 10.
  • the electrical energy storage cell 10 may be, for example, a battery cell. Such battery cells store the provided electrical energy by means of electrochemical processes inside the battery cell.
  • the electrical energy storage cell 10 may be a battery cell in the form of a lithium-ion battery.
  • the electrical energy storage cell 10 may be a so-called pouche cell.
  • the electrical energy storage cell 10 generally has two connection elements 11. These are usually the positive pole and the negative pole. In principle, however, electrical energy storage cells 10 are possible, which have a different number of electrical connection elements 11.
  • the electrical energy storage cell 10 it is possible for the electrical energy storage cell 10 to have only one connection element 11, and the circuit to be closed via a further point, for example an electrical contact on the outside of the electrical energy storage cell 10.
  • electrical energy storage cells 10 are possible, which have more than just two connection elements 11.
  • Electrical energy can be provided on the electrical energy storage cell 10 via the electrical connection elements 11, which energy is then stored in the interior of the electrical energy storage cell 10 by means of electrochemical processes. By reversing these electrochemical processes in the interior of the electrical energy storage cell 10, the electrical energy storage cell 10 can then at least partially be made available again at the connection elements 11 of the electrical energy storage cell 10 at a later time.
  • FIG. 2 shows a side view of an electrical energy storage cell 10 with the connection elements 11.
  • connection elements 11 are all arranged at the upper region of the electrical energy storage cell 10 in the examples shown here, other positions for the extraction of the connection elements 11 from FIG electrical energy storage cell 10 possible. Also, not all connection elements 11 must be arranged on the same side of the energy storage cell 10.
  • FIG. 3 shows a representation of an electrical energy storage device 1 with a plurality of electrical energy storage cells 10.
  • the number of three electrical energy storage cells 10 shown here serves only for better understanding. In addition, any is Further number of electrical energy storage cells 10 within an electrical energy storage device 1 also possible.
  • the electrical energy storage cells 10 can be interconnected both serially and in parallel. A combination of serial and parallel connection of a plurality of electrical energy storage cells 10 within the electrical energy storage device 1 is also possible. In the case of a parallel connection, all connection elements 11 of one polarity of the electrical energy storage cell 10 are in each case connected together by means of a busbar 30. Alternatively, another connection of the connecting elements 11 of the electrical energy storage cell 10 by means of one or more bus bars 30 is possible.
  • FIG. 4 shows a schematic representation of an electrical energy storage device 1.
  • a connection element 11 of the electrical energy storage cell 10 is coupled to a connection device 20.
  • the connection device 20 is a spring element or a clamping element.
  • the spring or clamping element exerts a force on the connecting element 11 in the direction of the arrow.
  • the contact pressure of the spring or clamping element of the connecting device 20 produces a thermal coupling between the connection element 11 of the electrical energy storage cell 10 and the connection device 20. In this way, the electrical energy storage cell 10 and the connection element 11 of the electrical system
  • Energy storage cell 10 overcoupling resulting thermal energy to the connecting device 20. This results in a cooling of the connection element 11 and thus also a Heat dissipation of the electrical energy storage cell 10.
  • the electrical energy storage cell 10 is also mechanically held at its predetermined position.
  • the electrical connection to the connection elements 11 of the electrical energy storage cell 10 can also be made possible at the same time by the connection device 20. Alternatively, however, an additional mechanical support for the cells can be provided. Thus, there is also an electrical contact of the energy storage cell 10.
  • the connecting element 20 is a spring element
  • the force for contacting is obtained from this spring element.
  • the force for contacting is provided by an additional element.
  • this may be an additional clamp 23a or a screw 23b.
  • this additional element 23a, 23b can also be used to attach an additional cooling element 22.
  • connection element 11 of the electrical energy storage cell 10 is held by two sides in each case by a spring element or a clamping element of the connection device 20.
  • one side provides a rigid, non-resilient thermal, electrical and / or mechanical contacting, while only the other side is configured as a spring element to provide the required contact pressure.
  • At least part of the connecting device 20 is configured as a cooling device 21.
  • Cooling device 21 designed part of the connecting device 20 allows a release of thermal energy into the environment.
  • the heat energy from the electrical see energy storage cell 10 and the connection element 11 of the electrical energy storage cell 10, which couples via the connecting device 20 are discharged through the cooling device 21 to the environment.
  • the connecting device 20 may have an area with a large smooth or structured surface over which the thermal energy can be released into the environment.
  • the connection element 11 of the energy storage cell 10 may have the same or the same structure as the connection device 20 in order to maximize the contact surfaces.
  • the surface of the part of the connecting device 20 serving as cooling device 21 or the surface of the spring element is preferably larger than the surface of the connecting element 11 of the electrical energy storage cell 10.
  • an additional cooling element 22 can also be arranged on the connecting device 20.
  • a cooling element 22 can be arranged either on one or alternatively on both sides of the connecting device 20.
  • the cooling element 22 may be, for example, a cooling nozzle, cooling fins, or any other structure having a preferably large surface area for heat dissipation to the surroundings.
  • the spring element of the connecting device 20 can also be designed as a bimetal.
  • a bimetal is preferably a structure of two interconnected metal strips, the two metal strips having different thermal expansion coefficients. As the temperature varies, one of the two metal strips expands more than the other. In this way, with increasing temperature, an increasing contact pressure of the spring elements on the connection element 11 of the electrical energy storage cell 10 can be achieved. This makes it possible, for example, to design the spring element in this way. design that the spring element can be very easily opened when mounted at relatively low temperature, while at a higher operating temperature of the contact pressure of the spring elements on the connection element 11 of the electrical energy storage cell 10 is seen increases and thus increased thermal, mechanical and electrical coupling ,
  • FIG. 5 shows a further embodiment of an electrical energy storage device 1.
  • the electrical energy storage device 1 comprises an electrically insulating carrier 25.
  • the electrically insulating carrier 25 has an opening 26.
  • the electrical energy storage cell 10 is arranged on the underside 25a of the electrically insulating support 25, the electrical energy storage cell 10 is arranged.
  • the connection element 11 of the electrical energy storage cell 10 projects through the opening 26 of the electrically insulating carrier 25.
  • the connection element 11 of the electrical energy storage cell 10 is thermally coupled to a heat sink 27.
  • the heat sink 27 can be arranged in a suitable manner over the opening 26 of the electrically insulating support 25, so that a thermal contact between the connection element 11 of the electrical energy storage cell 10 and the heat sink 27 is formed.
  • the heat sink 27 is connected to the electrically insulating carrier 25, wherein a part of the connection element 11 of the electrical energy storage cell 10 is clamped between the heat sink 27 and the electrically insulating carrier 25.
  • the connection element 11 of the electrical energy storage cell 10 is connected in another way with the heat sink 27, for example by means of screwing, welding, or an alternative connection method.
  • connection between the electrically insulating carrier 25 and the heat sink 27 can also be effected by means of an arbitrary fastening method.
  • the heat sink 27 are bolted to the electrically insulating support 25.
  • gluing, welding, bonding or any other connection method is possible.
  • the connection element 11 of the electrical energy storage cell 10 can also be contacted electrically with a busbar 30.
  • the heat sink 27 and the busbar 30 as a common
  • the heat sink 27 serves as a busbar at the same time, or by the busbar is also a cooling of the connection elements 11 allows.
  • FIG. 6 shows a schematic representation of an electrical energy storage device 1 with a plurality of electrical energy storage cells 10.
  • the connection elements 11 of one polarity of the electrical energy storage cells 10 are each not only thermally but also electrically connected to one another via the heat sink 27.
  • the heat sink 27 also serves as a busbar for transporting the electrical energy.
  • a series connection of the individual electrical energy storage cells 10 can also be realized by a suitable configuration of the heat sink 27.
  • an electrically insulating element 28 between connection element 11 and heat sink 27 can be provided. Combinations of series or parallel circuits of individual electrical energy storage cells 10 is possible in this way.
  • FIG. 7 shows an illustration of a connection element 11 of an electrical energy storage cell 10.
  • the connection element 11 of the electrical energy storage cell 10 has a section IIa with one or more openings 12. These openings are of a cooling medium, for example Air, permeable.
  • a dehumidification of the connection elements 11 of the electrical energy storage cell 10 can be achieved by means of a cooling medium flowing past.
  • the cooling medium does not only have to flow past the outer sides of the connection elements 11 between the energy storage cell 10, but due to the openings 12 it can enable a particularly efficient dehumidification of the connection elements 11.
  • the cross-section of the contact element 11 can be increased, in particular in the section IIa, in order to compensate for an increased electrical resistance which possibly occurs through the opening 12.
  • FIG. 8 shows a plan view of a connection element 11 of an electrical energy storage cell 10 according to a further embodiment.
  • the connection element 11 in this case has one or more deflection devices 13, which are designed to set a predetermined flow direction S of the cooling medium through the openings 12.
  • deflection devices 13 By means of the deflection devices 13, it is thus possible to achieve the most homogeneous and uniform flow of coolant through a plurality of connection elements 11 arranged one behind the other.
  • the section IIa may preferably have a lamellar structure.
  • a lamellar structure By means of such a lamellar structure, an efficient cooling of the connection elements 11 is possible with simultaneous control of the flow direction S of the coolant flow.
  • FIG. 9 shows a schematic illustration of a connection element 11 of an electrical energy storage cell which is connected to a connection device 20 of the electrical energy storage device.
  • cher worn 1 is coupled.
  • the connection element 11 of the electrical energy storage cell 10 is initially executed in the entire area in the region of the electrical energy storage cell 10.
  • the connection element 11 is subdivided into a plurality of subelements. For example, this subdivision can take place by means of suitable stampings in the connection element 11.
  • the individual partial elements of the connecting element 11 in the region IIa are then respectively rotated at the end remote from the electrical energy storage cell 10. Preferably, a rotation takes place by about 90 °. Other angles are also possible.
  • connection element 11 can in this case be thermally coupled to the connection device 20.
  • the remaining heat can be released by a cooling device on the connecting device 20 to the environment.
  • FIG. 10 shows a schematic representation of a method for the disarming of an electrical energy storage device, as it is an embodiment of the present invention.
  • step S1 an electrical
  • Energy storage cell 10 is provided with a connection element 11. Furthermore, in step S2, a connection device 20 is provided with a cooling device. In step S3, the cooling device of the connecting device 20 is thermally coupled to the connection element 11 of the electrical energy storage cell 10. Preferably, the connecting device 20 provided in step S2 has a spring element.
  • the method according to the invention can provide an electrically insulating support in a further step.
  • the electrically insulating carrier preferably has an opening 26.
  • the electrical energy storage cell 10 is arranged on a first side of the electrically insulating support.
  • the connection element 11 of the electrical energy storage cell 10 is led from the first side 25a to a second side 25b of the electrically insulating support structure opposite the first side 25a.
  • the cooling device of the connection device 20 is coupled to the connection element 11 of the electrical energy storage cell 10 on the second side 25b of the electrically insulating support.
  • the present invention relates to an electrical energy storage device for improved heating of energy storage cells, such as, for example, lithium ion cells, in particular pouch cells.
  • energy storage cells such as, for example, lithium ion cells, in particular pouch cells.
  • the cooling takes place, that is, the cooling of the electrical energy storage cells via the electrical connections of the energy storage cells.
  • the connecting device for the terminals of the electrical energy storage cell in this case has a cooling device, via which an efficient heat release is made possible in the environment.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne un dispositif accumulateur d'énergie électrique permettant d'obtenir une dissipation thermique améliorée d'éléments accumulateurs d'énergie, tels que des éléments au lithium-ion, en particulier des éléments du type sachets souples. La dissipation thermique, c'est-à-dire le refroidissement des éléments accumulateurs d'énergie électrique se fait par l'intermédiaire des bornes électriques des éléments accumulateurs d'énergie. Le dispositif de raccordement pour les bornes des éléments accumulateurs d'énergie électrique présente un dispositif de refroidissement permettant d'obtenir une dissipation efficace de la chaleur dans l'environnement.
PCT/EP2015/052247 2014-02-12 2015-02-04 Dispositif accumulateur d'énergie électrique et procédé de dissipation thermique d'un dispositif accumulateur d'énergie électrique Ceased WO2015121118A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014202549.4A DE102014202549A1 (de) 2014-02-12 2014-02-12 Elektrische Energiespeichereinrichtung und Verfahren zum Entwärmen einer elektrischen Energiespeichereinrichtung
DE102014202549.4 2014-02-12

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WO2015121118A1 true WO2015121118A1 (fr) 2015-08-20

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WO (1) WO2015121118A1 (fr)

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CN105914429A (zh) * 2016-04-21 2016-08-31 中国第汽车股份有限公司 一种基于官能团石墨烯还原的柔性导热膜及制备方法

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DE102021126133A1 (de) * 2021-10-08 2023-04-13 Audi Aktiengesellschaft Kraftfahrzeug und Batterie mit Kühlelement
DE102022209264A1 (de) * 2022-09-06 2024-03-07 Mahle International Gmbh Akkumulatoranordnung

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