[go: up one dir, main page]

WO2025262009A1 - Connecteur multicouche et son procédé de fabrication - Google Patents

Connecteur multicouche et son procédé de fabrication

Info

Publication number
WO2025262009A1
WO2025262009A1 PCT/EP2025/066833 EP2025066833W WO2025262009A1 WO 2025262009 A1 WO2025262009 A1 WO 2025262009A1 EP 2025066833 W EP2025066833 W EP 2025066833W WO 2025262009 A1 WO2025262009 A1 WO 2025262009A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
flexible portion
connection portions
hollow chamber
flexible
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.)
Pending
Application number
PCT/EP2025/066833
Other languages
English (en)
Inventor
Edvin List Clausen
Christian Delfs
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.)
Hydro Extruded Solutions AS
Original Assignee
Hydro Extruded Solutions AS
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 Hydro Extruded Solutions AS filed Critical Hydro Extruded Solutions AS
Publication of WO2025262009A1 publication Critical patent/WO2025262009A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B21C23/142—Making profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels for metal extruding
    • B21C35/02—Removing or drawing-off work
    • B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
    • B23P13/04—Making metal objects by operations essentially involving machining but not covered by a single other subclass involving slicing of profiled material
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • Multi-layer connector and method for making same
  • the present invention relates to a multi-layer connector for connecting battery cells, in particular for battery cells in automotive vehicles.
  • Battery systems in electric cars comprise a plurality of battery cells connected by connectors. In use, these cells will expand and retract, for example when the battery is charged/discharged. Because of this, the distance between the cells will constantly vary. In order not to destroy the cells or the connections to these, the connectors need to be flexible.
  • JPH10125301A One example of such a flexible connector is disclosed in JPH10125301A.
  • the present invention is directed to a method and a connector that may solve or at least reduce at least one of the aforementioned problems or challenges.
  • the present disclosure relates to a connector for providing a flexible connection between battery cells of an electric vehicle battery system.
  • the connector comprises: a flexible portion; and two connection portions arranged on opposite sides of the flexible portion. Wherein the flexible portion and the connection portions are coextruded, and the flexible portion as extruded comprises at least one hollow chamber.
  • An advantage of the connector is that it offers improved flexibility, its flexible portion allows the battery cells to expand and retract with less force being transferred over the connector. As compared to a 1-layer connector, the present connector can provide the same conductivity and weight yet with improved flexibility.
  • the connector Since the connector has higher flexibility than solid 1-layer connectors, its size can be reduced. The smaller connector benefits from lower weight and requires less space.
  • a further advantage of the higher flexibility is that annealing in some cases can be avoided for a cold formed connector.
  • the connector being coextruded, i.e. the flexible portion and the connection portions being extruded as one, is that it does not require assembling.
  • the connector can be used as extruded, i.e. extruded to its final shape, or the connector can be formed to a required shape after extrusion.
  • the hollow chamber may have curved, zigzag, or wavy walls to provide flexibility.
  • the shape can e.g. be selected according to available space in the battery system.
  • Each wall extends between two connection points of the hollow chamber.
  • the hollow chamber is connected to another part of the connector such as another hollow chamber, a connection portion, or an intermediate connection portion.
  • connection portions are configured to facilitate connection to the battery cells of a battery system.
  • the connection portions are typically straight and arranged in the same plane.
  • the hollow chamber may have walls that form offset curves, i.e. spaced apart curves that follow the same curvature.
  • the hollow chamber may have walls that are brought into contact with each other after extrusion.
  • the walls may be brought together by a forming process, e.g. rolling.
  • the hollow chamber may be symmetric, e.g. by having walls that mirror each other on opposite sides of an imaginary line.
  • An imaginary line extending between two connection portions may intersect the hollow chamber.
  • the hollow chamber would then typically have one wall on each side of the imaginary line.
  • the hollow chamber may be arranged on one side of an imaginary line extending between two connection portions.
  • the hollow chamber would then have both/all walls on the same side of the imaginary line.
  • the hollow chamber has a first wall thickness, and the connection portions have a second wall thickness.
  • the first wall thickness may then be equal or smaller than the second wall thickness.
  • the walls of the hollow chamber may have a combined wall thickness being equal to the wall thickness of one connection portion.
  • the first wall thickness may be 0.5x the second wall thickness.
  • the walls of the hollow chamber typically have equal wall thicknesses.
  • the walls of the hollow chamber preferably have the same length, i.e. the distance they cover between the connection points, such that their electrical resistance is equal.
  • connection portions typically have equal wall thicknesses.
  • connection portions are configured for connection to battery cells. They can be provided with an area for laser welding or a hole for bolting or other suitable features to facilitate connection to the battery cells.
  • the connector may comprise a plurality of flexible portions.
  • Each flexible portion may comprise a plurality of hollow chambers, wherein the hollow chambers are arranged in parallel and/or in series.
  • the connector may comprise an intermediate connection portion arranged between two flexible portions.
  • the intermediate connection portion will typically have the same geometry as the connection portions.
  • the connection portions will typically be parallel and arranged in the same plane. However, in some embodiments of the invention, the connection portions may be arranged in different planes and /or be angled relative each other. The positioning of the connection portions will typically be set to match the arrangement of the battery cells they are configured to be connected to.
  • the connector may be made of aluminium or an aluminium alloy, such as a 1XXX series aluminium alloy, preferably AA1050.
  • the chemical composition of a 1050 aluminium alloy is: Aluminium: 99.5% min, Copper: 0.05% max, Iron: 0.4% max, Magnesium: 0.05% max, Manganese: 0.05% max, Silicon: 0.25% max, Titanium: 0.03% max, Vanadium: 0.05% max, and Zinc: 0.05% max.
  • the hollow chamber may preferably have walls configured to carry the same current.
  • the resistance of the walls should be balanced.
  • the resistance is given by the formula: where R is the resistance, p is the resistivity of the material, L is the length of the wall, and A is the cross-sectional area. If the walls have different lengths, the same current flow can be achieved by adapting their cross-sectional areas accordingly.
  • the longest wall should be thicker, and the shortest wall should be thinner to balance the resistance. By balancing the resistance, the walls (which are made from the same material) will carry the same current.
  • the present disclosure also relates to a battery module for an electric vehicle.
  • the battery module comprises at least one connector as described herein and a plurality of battery cells.
  • the battery cells are connected by means of the at least one connector.
  • the present disclosure also relates to a battery system for an electric vehicle.
  • the battery system comprises a plurality of battery modules as described herein.
  • the present disclosure also relates to a method of manufacturing a connector as described herein.
  • the method comprises the steps of providing an extrusion billet made of aluminium or an aluminium alloy; extruding a hollow profile comprising a flexible portion(s) and connection portions arranged on opposite sides of the flexible portion(s), wherein the flexible portion comprises at least one hollow chamber; and optionally forming the hollow profile to a predefined shape of a connector. If the as extruded hollow profile corresponds to the predefined shape of the connector, i.e. the required final shape of the connector, the forming step is not required.
  • the hollow extruded profile typically has a length (in the extrusion direction) that is longer than the required length of the connector, which allows the hollow profile to be cut into a plurality of connectors.
  • the method may comprise the step of cold rolling or cold forming the flexible portion and/or the connection portions.
  • a thicker material can be extruded and thereby achieve higher productivity.
  • the extruded profile will in this case obtain higher yield stresses and can then be cut/stamped without burrs as the elongation of the material is significantly reduced.
  • the extrusion tolerances can be optimized.
  • the method may comprise the step of bending the flexible portion and/or the connection portions to obtain the predefined shape.
  • the cold rolling, cold forming, and bending performed subsequent the extrusion process does not cause an intermetallic connection of the walls of the flexible portion.
  • the method may comprise the step of annealing the flexible portion and/or the connection portions after forming, preferably by means of induction.
  • Fig. 1 is a cross-sectional view of a prior art connector
  • Fig. 2 is a cross-sectional view of a connector according to the invention.
  • Fig. 3 is a cross-sectional view of a connector according to the invention.
  • Fig. 4 is a cross-sectional view of a connector according to the invention.
  • Fig. 5 is a cross-sectional view of a connector according to the invention.
  • Fig. 6 is a cross-sectional view of a connector according to the invention.
  • Fig. 7 is a cross-sectional view of a connector according to the invention.
  • Fig. 8 is a cross-sectional view of a connector according to the invention.
  • Fig. 9 is a cross-sectional view of a connector according to the invention.
  • Fig. 10 is a cross-sectional view of a connector according to the invention.
  • Fig. 11 is a cross-sectional view of a connector according to the invention.
  • Fig. 12a-c are cross-sectional views of a sequence illustrating how the connector of Fig. 5 can be made by a process comprising extrusion, cold rolling and bending;
  • Fig. 13 is a side view of a cold rolling process leading to the state illustrated in Fig. 12b;
  • Fig. 14 is a cross-sectional view of Fig. 13;
  • Fig. 15 is a perspective view showing a finite element method (FEM) simulation performed on a prior art connector
  • Fig. 16 is a perspective view showing the same FEM simulation as in Fig. 15 performed on a connector according to the invention.
  • Fig. 1 shows a cross-section view of a prior art connector 2 of a solid 1-layer construction.
  • the prior art connector 2 is configured to connect battery cells of a battery system, typically used in electric vehicles.
  • the prior art connector 2 comprises two connection portions 22 configured for connection to one battery cell each. In use, these cells will expand and retract, for example when the battery is charged/discharged. Because of this, the distance between the cells will constantly vary. In order not to destroy the cells or the connections to these, the prior art connector 2 has a flexible portion 21 arranged between the connection portions 22.
  • Fig. 2 is a cross-sectional view of a connector 1 according to the invention.
  • This connector 1 is also configured to provide a flexible connection between battery cells and therefore also comprises a flexible portion 11 and two connection portions 12 arranged on opposite sides of the flexible portion 11.
  • this connector 1 has a hollow flexible portion 11, i.e. the flexible portion 11 comprises a hollow chamber 13.
  • the hollow flexible portion 13 provides more flexibility than a solid flexible portion 21.
  • the hollow chamber 13 is defined by two curved walls 14.
  • the shape of the walls 14 allow movement of the two connection portions 12 relative each other as the battery cells expand and retract.
  • the walls 14 are curved in opposite directions (upwards and downwards in the figure) and form a symmetric hollow chamber 13.
  • the symmetric hollow chamber 13 allows relative movement of the connection portions 12 without causing them to bend.
  • the connection portions 12 can thus move with the battery cells without inducing a moment on them.
  • the connector 1 in Fig. 2 is made by an extrusion process in which the extruded profile comprises the flexible portion 11 and the connection portions 12, i.e. the flexible portion 11 and the connection portions 12 are coextruded.
  • the connection portions 12 and the flexible portion 11 is made of the same material.
  • the preferred material is aluminium or an aluminium alloy, such as a 1XXX series aluminium alloy, preferably AA1050.
  • Fig. 2 illustrates a typical as extruded shape that may be intended to undergo further forming processes before reaching the final shape of the connector 1, or an as extruded shape that corresponds to the final shape of the connector 1, i.e. a shape that is not intended to undergo further forming processes.
  • the walls 14 may have a combined wall thickness corresponding to the wall thickness of the connection portion 12.
  • the wall thickness of the wall 14 may thus be 0.5x the wall thickness of the connection portion 12.
  • connection portions 12 extend between the two connection portions 12.
  • the points where the two walls 14 meet and connect to the connection portion 12 can be considered connection points. These are not however the points where battery cells are connected.
  • Fig. 3 is a cross-sectional view of a connector 1 according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 2. The difference is the shape of the flexible portion 11.
  • the flexible portion 11 has a hollow chamber 13 wherein the walls 14 are bent after extrusion to form a zigzag pattern or at least a part of a zigzag pattern.
  • the walls 14 may have straight portions.
  • the straight parts of the walls 14 are angled relative the connection portions 12.
  • Fig. 4 is a cross-sectional view of a connector according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 2. The difference is the shape of the flexible portion 11.
  • the flexible portion 11 has a hollow chamber 13 wherein the walls 14 have different lengths.
  • the upper wall 14 in the figure is longer than the lower wall 14. This could also be the other way around, such that the upper wall 14 was the shortest. As a result, the two walls 14 have different curvatures.
  • Fig. 4 could be used when space is limited in the battery system. Since the hollow chamber 13 is not symmetric this shape may not prevent moment on the battery cells to the same extent as the shape of Figs. 2 and 3.
  • the wall thicknesses can preferably be adapted to ensure the same current flow in both walls 14.
  • Fig. 5 is a cross-sectional view of a connector according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 2. The difference is the shape of the flexible portion 11. Whereas the shapes of Figs. 2-4 illustrate typical as extruded shapes, the flexible portion 11 in Fig. 5 is typically achieved by subsequent forming after extrusion.
  • the walls 14 form offset curves that are partially brought into contact with each other.
  • the volume of the hollow chamber 13 is significantly reduced as compared to the shape in Fig. 2.
  • the walls 14 can be completely brought into contact with each other. Forming after extrusion may be performed in-line with the extrusion process.
  • Fig. 6 is a cross-sectional view of a connector according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 2. The difference is the shape of the flexible portion 11.
  • the flexible portion 11 has two hollow chambers 13 arranged in parallel.
  • the two hollow chambers 13 are defined by three walls 14, thus having one common wall 14.
  • This common wall 14 is wave shaped and the two other walls 14 are curved like the walls 14 in Fig. 2.
  • the walls 14 may have the same length even though they have different shapes.
  • the two hollow chambers 13 are symmetric in Fig. 6.
  • the flexible portion 11 may comprise asymmetric hollow chambers 13.
  • Fig. 7 is a cross-sectional view of a connector according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 2. The difference is the number of flexible portions 11 and the addition of an intermediate connection portion 12'.
  • the connector 1 comprises two flexible portions 11 arranged in series, two connecting portions 12, and an intermediate connecting portion 12'.
  • the two flexible portions 11 are arranged on opposite sides of the intermediate connection portion 12'.
  • the intermediate connection portion 12' is configured for connection to a battery cell.
  • the connector in Fig. 7 is configured to connect three battery cells.
  • the flexible portions 11 are identical and comprise one hollow chamber 13 each. In other embodiments of the invention the flexible portions 11 may be different from each other and/or comprise a plurality of hollow chambers 13.
  • Fig. 8 is a cross-sectional view of a connector according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 7. The difference is the shape of the flexible portions 11.
  • the flexible portions 11 have hollow chambers 13 wherein the walls 14 are bent like the walls 14 in Fig. 3.
  • Fig. 9 is a cross-sectional view of a connector according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 7. The difference is the shape of the flexible portions 11.
  • the flexible portions 11 have hollow chambers 13 wherein the walls 14 are bent like the walls 14 in Fig. 5.
  • Fig. 10 is a cross-sectional view of a connector according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 2. The difference is the shape of the flexible portion 11.
  • the flexible portion 11 comprises two hollow chambers 13 arranged in series.
  • the hollow chambers 13 are symmetrical and have the same shape as the hollow chamber of Fig. 2.
  • Fig. 11 is a cross-sectional view of a connector according to the invention.
  • This connector 1 has substantially all the same features as the connector in Fig. 10. The difference is the shape of the flexible portion 11.
  • the walls 14 of each hollow chamber 13 form offset curves that are partially brought into contact with each other in the same way as in Fig. 5.
  • the two hollow chambers 13 are symmetric but curved in opposite directions. Together the two hollow chambers 13 form the flexible portion 11 which has a wave shape.
  • Fig. 12a-c are cross-sectional views of a sequence illustrating how a connector 1 according to the invention can be made.
  • Fig. 12a an extrusion billet made of aluminium or an aluminium alloy has been extruded to a geometry similar to the connector 1 in Fig. 3.
  • the extruded profile can be several meters long, whereas the connector 1 only needs to be some millimetres long.
  • a plurality of connectors 1 can thus be made from one extruded profile.
  • the illustrated cross-sectional views are perpendicular to this length direction.
  • the connector 1 of Fig. 12a could be used as extruded. However, further forming may provide some advantages.
  • Fig. 12b the connector 1 from Fig. 12a has been cold rolled.
  • the connector in Fig. 12b has a reduced wall thickness.
  • the entire connector has been cold rolled; however, in some embodiments of the invention only a part of the connector 1 can be cold formed. Higher productivity in the extrusion process can thus be achieved.
  • the walls 14 are straight (i.e. not bent or curved) and will therefore not provide the desired flexibility. If the entire connector 1 is cold rolled, further forming of the connector 1 will therefore typically be required. Subsequent the cold rolling, the connector 1 will typically be formed to a predetermined final shape.
  • the connector 1 from Fig. 12b has been formed to a geometry similar to the connector 1 in Fig. 5. This forming does not cause an intermetallic connection between the walls 14 of the flexible portion 11, neither does the cold rolling in Figs. 12b, 13 and 14.
  • the connector 1 After the connector 1 has been formed to the geometry in Fig. 12c, it can be annealed, e.g. by means of induction. Either the entire connector 1 can be annealed, or alternatively only parts of the connector 1 can be annealed.
  • Fig. 13 is a side view of a cold rolling process performed between the states of Fig. 12a and Fig. 12b.
  • Fig. 14 is a cross-sectional view of the cold rolling process taking place in Fig. 13.
  • the cold rolling may preferably be performed in a manner preventing cold welding of the walls 14.
  • Fig. 15 is a perspective view showing a finite element method (FEM) simulation performed on a prior art connector 2.
  • the connector 2 in Fig. 15 is similar to the connector 2 of Fig. 1 and the simulation reflects how an expected movement of the battery cells will affect the connector 2.
  • FEM finite element method
  • Fig. 16 is a perspective view showing the same FEM simulation as in Fig. 15 performed on a connector 1 according to the invention.
  • the connector 1 in Fig. 16 is the same as the connector 1 in Fig. 5, which has a comparable shape as the prior art connector 2 of Fig. 15, i.e. two connection portions 12 arranged in the same plane and an upwardly curved flexible portion 11.
  • the flexible portion 11 of the connector 1 in Fig. 16 will reduce stress levels with approximately 40 % as compared to the prior art connector 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

L'invention concerne un connecteur (1) pour fournir une connexion flexible entre des éléments de batterie d'un système de batterie de véhicule électrique, un module de batterie, un système de batterie et un procédé de fabrication du connecteur (1). Le connecteur (1) comprend : une partie flexible (11), et deux parties de connexion (12) disposées sur des côtés opposés de la partie flexible (11), la partie flexible (11) et les parties de connexion (12) étant coextrudées, et la partie flexible (11) telle qu'extrudée comprenant au moins une chambre creuse (13).
PCT/EP2025/066833 2024-06-18 2025-06-17 Connecteur multicouche et son procédé de fabrication Pending WO2025262009A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20240650 2024-06-18
NO20240650 2024-06-18

Publications (1)

Publication Number Publication Date
WO2025262009A1 true WO2025262009A1 (fr) 2025-12-26

Family

ID=96261210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/066833 Pending WO2025262009A1 (fr) 2024-06-18 2025-06-17 Connecteur multicouche et son procédé de fabrication

Country Status (1)

Country Link
WO (1) WO2025262009A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10125301A (ja) 1996-10-23 1998-05-15 Yazaki Corp 接続端子
US20020039542A1 (en) * 2000-08-09 2002-04-04 Andreas Bogel Silver containing copper alloy
DE102011075834A1 (de) * 2011-05-13 2012-11-15 Elringklinger Ag Zellverbinder
US20150140393A1 (en) * 2012-08-01 2015-05-21 Kabushiki Kaisha Toshiba Secondary battery connecting structure and secondary battery apparatus comprising the same
US9853435B1 (en) * 2016-08-29 2017-12-26 Ford Global Technologies, Llc Busbar thermal management assembly and method
DE102019216740A1 (de) 2019-10-30 2021-05-06 Siemens Mobility GmbH Anordnung mit Stromleiter und Kühlbereich
CN116652519A (zh) * 2022-02-21 2023-08-29 苏州方林科技股份有限公司 一种融层铝排加工工艺及融层铝排
WO2025041579A1 (fr) * 2023-08-24 2025-02-27 株式会社オートネットワーク技術研究所 Barre omnibus et module de câblage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10125301A (ja) 1996-10-23 1998-05-15 Yazaki Corp 接続端子
US20020039542A1 (en) * 2000-08-09 2002-04-04 Andreas Bogel Silver containing copper alloy
DE102011075834A1 (de) * 2011-05-13 2012-11-15 Elringklinger Ag Zellverbinder
US20150140393A1 (en) * 2012-08-01 2015-05-21 Kabushiki Kaisha Toshiba Secondary battery connecting structure and secondary battery apparatus comprising the same
US9853435B1 (en) * 2016-08-29 2017-12-26 Ford Global Technologies, Llc Busbar thermal management assembly and method
DE102019216740A1 (de) 2019-10-30 2021-05-06 Siemens Mobility GmbH Anordnung mit Stromleiter und Kühlbereich
CN116652519A (zh) * 2022-02-21 2023-08-29 苏州方林科技股份有限公司 一种融层铝排加工工艺及融层铝排
WO2025041579A1 (fr) * 2023-08-24 2025-02-27 株式会社オートネットワーク技術研究所 Barre omnibus et module de câblage

Similar Documents

Publication Publication Date Title
US11107602B2 (en) Electric wire conductor, covered electric wire, and wiring harness
US9136039B2 (en) Cell connector
US10153570B2 (en) Flexible circuits for electrical harnesses
US5264306A (en) Lead-acid storage cell grid
US10243191B2 (en) Flexible multi-layered bus bar
US8802242B2 (en) Clad plate
US10193107B2 (en) Electric storage device and electric storage apparatus provided with the electric storage device
US9196971B2 (en) Assembly having a tubular portion crimped to a cable at several locations with varying degrees of compression
US10501029B2 (en) Wire harness
JP6150905B2 (ja) 電池配線モジュールの製造方法
US20120100761A1 (en) Battery Cell Connector
JP2016115544A (ja) 電池配線モジュール及びその製造方法
EP2713423B1 (fr) Module de batterie avec elément de liaison en forme d'oméga pour relier électriquement des cellules de batterie
KR101891361B1 (ko) 수형 전기 단자
EP1253684B1 (fr) Matériel d'interconnexion et procédé pour sa fabrication
WO2025262009A1 (fr) Connecteur multicouche et son procédé de fabrication
JP2020166944A (ja) バスバー及びバスバーの製造方法
JP4268006B2 (ja) アルミ電線への端子圧着構造及び端子付アルミ電線の製造方法
WO2014040677A2 (fr) Élément individuel d'une batterie
JP2021170467A (ja) 扁平電線およびその製造方法、端子付き扁平電線ならびにワイヤーハーネス
WO2007071425A1 (fr) Plaque ou barrette pour produire des connecteurs, connecteur et son utilisation, et procédé de fabrication d'une telle barrette
JP4774297B2 (ja) 鉛蓄電池用格子体の製造方法および鉛蓄電池
EP0441901B1 (fr) Grille d'accumulateur amelioree au plomb-acide
US20240322386A1 (en) Bus bar for high current and battery pack including the same
US11367931B2 (en) Method for producing a cell-contacting system for a battery module of a vehicle, cell-contacting system and battery module