Battery contacting arrangement and method for manufacturing a battery contacting arrangement

Abstract

The invention relates to a battery contacting arrangement (1) and to a method for manufacturing a battery contacting arrangement (1) by means of a tool (20) having at least a lower tool half (21), in which method a first laminating film (2) is arranged on the lower tool half (21), at least one planar current collector (3) is arranged directly at a respective predefined position of the first laminating film (2) and the first laminating film (2) and the at least one current collector (3) are joined by means of a heat generation device.

Description

[0001] Battery contact arrangement and manufacturing method of a battery contact arrangement

[0002] Description:

[0003] The invention relates to a battery contacting arrangement and a manufacturing method of a battery contacting arrangement.

[0004] Various manufacturing processes are currently used to contact and interconnect battery cells in battery modules for electromobility and similar battery module applications. The contact systems are prefabricated and provided for module production. In this context, the contact systems consist of various components that perform different functions. On the one hand, metallic components made of copper or aluminum are integrated, which conduct the electrical current of the battery cells and implement the corresponding circuit. On the other hand, components are used that hold these metal parts in the assembly position, at least until the battery cell is contacted, and provide electrical and thermal insulation.

[0005] In current products, the insulating components that hold the connectors are manufactured using injection molding or lamination processes.

[0006] These frame-like structures can be manufactured very well up to a certain size using injection molding. The metal components can either be overmolded during the injection molding process or assembled subsequently using mechanical clips. Adhesive bonding or heat staking are also common options for assembling the components. A disadvantage of this process variant is that the relatively thick walls of the injection-molded parts, which is inherent in the process, result in a rigid assembly, which makes height compensation / tolerance compensation for the subsequent assembly of the contact system on the battery cells difficult and almost impossible. Furthermore, there is a trend towards ever larger battery modules, which is pushing injection molding to its technological limits.

[0007] The problems described can be remedied by manufacturing the assembly through lamination. This involves securing the metallic structures between two films. The process can be performed using either hot or cold lamination. Hot lamination has the critical advantage that all components can be precisely positioned in a tool without sticking to one another. By closing the tool and applying an appropriate force, the components are secured in place and can then be heated within the tool. The heating causes the plastic films used to soften, allowing them to adhere to even the complex structures of the collectors. During this thermal treatment, the adhesive applied to the films also crosslinks, bonding the two films together and also forming an adhesive effect with the integrated metal components.The quality advantages of the final product are offset by the duration of the thermal treatment, which is both a hindrance for large quantities and is considered critical in terms of energy consumption.

[0008] In contrast, cold lamination uses a pressure-sensitive adhesive as a bonding agent between the two films. This adhesive, activated by even slight pressure, prevents precise alignment of the components in a tool at all required positions. Instead, the cover film must be rolled onto the lower film and the positioned metal inserts using a soft roller. This results in short processing times, but the achievable tolerances on the final component are larger, and air pockets can prevent precise application of the film.

[0009] It is therefore an object of the present invention to provide a battery contacting arrangement and a manufacturing method of a battery contacting arrangement which has sufficient flexibility for the respective application, optimizes the arrangement of the components relative to one another and at the same time reduces energy consumption during production.

[0010] This object is achieved by the combination of features according to patent claims 1 and 8. According to the invention, a manufacturing method of a battery contacting arrangement, in particular for contacting battery cells, with a tool having at least one lower tool half is proposed, in which a first laminating film is arranged on the lower tool half, at least one flat current collector is arranged directly at a respective predetermined position of the first laminating film and the first laminating film and the at least one current collector are joined by means of at least one heat generating device.

[0011] In a preferred embodiment of the invention, the heat-generating device is a laser device, and the joining of the first laminating film and the at least one current collector is carried out by means of a laser beam from the laser device. Alternatively or additionally, a variant is also conceivable in which the at least one heat-generating device is an infrared radiator, and the joining of the first laminating film and the at least one current collector is carried out by means of an infrared beam from the infrared radiator. Furthermore, a variant is conceivable in which the heat-generating device is a hot press.

[0012] The advantage of this is that the heat-generating device, preferably the laser beam of the laser device, heats the current collector, which is particularly made of metal, so that it at least partially melts the thermoplastic material of the laminating film, creating a type of hot-melt bond between the current collector and the first laminating film. Accordingly, the laminating film is bonded to the current collector via adhesive forces. Furthermore, all components are positioned in the lower tool half according to their final position. Due to the high travel speeds and the local energy input of the laser device, this leads to significant energy savings compared to hot lamination.In an alternative embodiment, a pressure-sensitive adhesive or a hot-melt adhesive or a coating is arranged, in particular, on a surface of the first laminating film, at least in the region of the respective predetermined position, to generate adhesion forces between the surface of the first laminating film and a contact surface of the current collector intended for contact with the first laminating film. The current collector is heated by the laser beam and / or infrared beam and bonded to the carrier film, for example, by means of a hot-melt bonding process.

[0013] In an advantageous embodiment, it is provided that when arranging the at least one current collector, a plurality of current collectors are arranged, in particular arranged in a predetermined number in rows and columns parallel to one another. In particular, the current collectors are arranged parallel to one another.

[0014] In one embodiment of the manufacturing method, it is provided that the at least one current collector is processed, in particular cleaned, irradiated, and / or laser-structured, on the contact surface intended for contact with the first laminating film before being arranged or joined. This improves the connection between the laminating film and the current collector.

[0015] Furthermore, an embodiment is advantageous in which the tool also has an upper tool half, and before joining, the tool is closed by arranging the upper tool half on the lower tool half. Furthermore, the upper tool half has a tool recess and / or a laser beam-transparent element and / or an infrared beam-transparent element at a respective position predetermined for joining, and during joining, the laser beam and / or the infrared beam radiates through the tool recess and / or the laser beam-transparent element and / or the infrared beam-transparent element. This provides access for the laser beam to the component to be irradiated by the laser beam of the laser device.

[0016] Preferably, the first laminating film is a laser beam-absorbing and / or infrared beam-absorbing laminating film, and during joining, the first laminating film absorbs the laser beam of the laser device and / or the infrared beam of the infrared radiator, such that a resulting local energy input melts the first laminating film.

[0017] In one embodiment, the manufacturing method according to the invention is carried out in such a way that, during joining, the respective current collector is heated by means of the laser beam of the laser device and / or by means of the infrared beam of the infrared radiator in such a way that the respective current collector and the first laminating film are joined by hot-melt bonding.

[0018] In a preferred embodiment of the manufacturing method, after the arrangement of the at least one current collector, a second, at least partially laser beam transparent and / or infrared beam transparent laminating film is arranged directly on the first laminating film, such that the at least one current collector is arranged directly, in particular in a sandwich-like manner, between the first laminating film and the second laminating film.

[0019] Accordingly, in the construction of the assembly with two films, one film is laser-transparent and / or infrared-transparent and the second film absorbs the laser beam and / or infrared beam, which enables direct energy introduction to the contact surfaces of the films. The local energy input then leads to the melting of the films and the formation of a material-to-material bond. The connection of the films to the metal parts, in particular the corresponding current collector, however, occurs via adhesion forces. According to the embodiment with only the first laminating film, in an alternative embodiment, a pressure-sensitive adhesive or a hot-melt adhesive or a coating for generating adhesion forces is arranged, in particular, on a surface of the first laminating film, at least in the region of the respective predetermined position, between the surface of the second laminating film and a contact surface of the current collector provided for contact with the first laminating film.The current collector is heated by the laser beam and / or infrared beam and connected to the carrier film, for example by means of a hot-melt bonding process.

[0020] In an advantageous embodiment of the invention, it is provided that during joining, the laser beam of the laser device and / or the infrared beam of the infrared radiator passes at least partially through the second laminating film, and the first laminating film absorbs the laser beam of the laser device and / or the infrared beam of the infrared radiator. In this case, the first laminating film and the second laminating film are bonded to one another, in particular by hot-melt bonding.

[0021] In a further embodiment of the manufacturing method, during joining, the laser beam of the laser device and / or the infrared beam of the infrared radiator passes through the second laminating film, and the respective current collector is heated by the laser beam of the laser device and / or the infrared beam of the infrared radiator in such a way that the respective current collector and the first laminating film and / or the second laminating film are joined by heat-bonding. In all relevant embodiments of this disclosure, the second laminating film has a recess at least at the correspondingly predetermined positions for the passage of the laser beam and / or infrared beam, or is formed from a laser beam-transparent and / or infrared beam-transparent material.In a further advantageous embodiment of the manufacturing method, during joining, the laser beam of the laser device and / or the infrared beam of the infrared radiator is guided around each of the at least one current collector, in particular parallel along a longitudinal and / or transverse extension of the corresponding current collector, and / or over the corresponding current collector.

[0022] It is further advantageous if the lower tool half has a plurality of positioning elements, in particular positioning pins or positioning bolts, wherein the second laminating film, the at least one current collector and / or the first laminating film are each positioned and / or tensioned in a predetermined manner relative to one another when arranged accordingly by means of the positioning elements.

[0023] Overall, the invention combines the advantages of all manufacturing technologies for battery contact systems explained at the beginning, namely no limitation of the component size due to technological limits as with injection molding, high flexibility and tolerance compensation through the use of a laminating film, free positioning of the components in the clamping tool, in particular without prior bonding with a pressure-sensitive adhesive, and rapid bonding of the films and components by partial melting of the plastic layer of the corresponding laminating film by means of the laser beam of the laser device and / or the infrared beam of the infrared radiator, in which no cross-linking of adhesives is necessary.

[0024] According to the invention, a battery contacting arrangement, in particular produced by a method according to the above disclosure, is further provided, comprising a first laminating film and at least one flat current collector arranged directly at a respective predetermined position of the first laminating film. In particular, the first laminating film is a laser beam-absorbing and / or infrared beam-absorbing laminating film. Preferably, a pressure-sensitive adhesive or a hot-melt adhesive or a coating for generating adhesion forces between the surface of the first laminating film and the current collector is arranged on a surface of the first laminating film, at least in the region of the respective predetermined position.

[0025] In a preferred embodiment of the invention, a second laminating film is arranged directly on the first laminating film, such that the at least one current collector is arranged directly, in particular in a sandwich-like manner, between the first laminating film and the second laminating film. The second laminating film is, in particular, a laminating film that is at least partially laser beam transparent and / or infrared beam transparent.

[0026] In an advantageous embodiment, the corresponding laminating film has a plurality of cutouts. In particular, the plurality of cutouts is designed such that the corresponding laminating film has a grid structure, more particularly a punched grid structure. Furthermore, the respective current collector is arranged on at least one, in particular two, of the cutouts of the corresponding laminating film such that the corresponding current collector can be contacted via the cutout, in particular by one or more battery cells.

[0027] Preferably, the battery contacting arrangement is designed such that the first and / or the second laminating film have conductor tracks, in particular made of copper, which connect at least one contact of the battery contacting arrangement, in particular a contact arranged on one of the recesses, to a printed circuit board and / or a busbar and / or a circuit, wherein the printed circuit board and / or the corresponding busbar and / or the circuit is also arranged directly, in particular in a sandwich-like manner, between the first laminating film and the second laminating film.

[0028] In a further advantageous variant, the invention provides that the printed circuit board of the first and / or the second laminating film is a flexible printed circuit board (FPC) which has the conductor tracks, in particular with a diameter of 35 pm, and in particular consists of polyimide (PI).

[0029] The battery contacting arrangement according to the invention is designed in one embodiment such that a contact pad for, in particular indirectly, contacting a current collector arranged at the corresponding recess is arranged on the second laminating film on an outer surface in the region of at least one respective recess, in particular in the region of two of the recesses.

[0030] In an advantageous embodiment, it is provided that the corresponding laminating film has at least partially, in particular in the region of a respective recess, a high-voltage connection coating.

[0031] Furthermore, an embodiment is favorable in which the first laminating film is arranged directly on a thermal insulation element and / or a thermal insulation layer and / or an element with a thermal insulation coating.

[0032] In a preferred embodiment of the invention, a plurality of current collectors is provided, in particular arranged in a predetermined number in rows and columns parallel to one another. In particular, the current collectors are arranged parallel to one another.

[0033] It is further advantageous if the at least one current collector has a contact point for a, in particular flexible, printed circuit board or a busbar or a circuit on a surface opposite the first laminating film, wherein the printed circuit board or the busbar or the circuit is also arranged directly, in particular in a sandwich-like manner, between the first laminating film and the second laminating film.

[0034] In a further advantageous embodiment, it is provided that clips and / or clamps for fixing a cover and / or a housing are arranged between the first and the second laminating film.

[0035] In one embodiment of the invention, the first and / or second laminating film is made of polyethylene terephthalate (PET) or polyaramid and has in particular a diameter of 10 to 1000 pm, more particularly 50 to 150 pm, preferably 100 pm.

[0036] The features disclosed above can be combined in any way, as long as this is technically possible and they do not contradict one another. In particular, when an infrared radiator is used instead of or in addition to a laser device as a heat-generating device, an infrared-absorbing or infrared-transmissive laminating film is provided or used instead of or in addition to a laser-beam-absorbing or laser-beam-transmissive laminating film, which, within the scope of the present disclosure, has the above-disclosed features of the laser-beam-absorbing or laser-beam-transmissive laminating film, respectively.

[0037] Other advantageous developments of the invention are characterized in the subclaims or are presented in more detail below, together with the description of the preferred embodiment of the invention, with reference to the figures. They show:

[0038] Fig. 1 is an exploded view of a battery contact arrangement arranged in a tool; Fig. 2 is a perspective view of the battery contact arrangement in the tool after joining;

[0039] Fig. 3 is a schematic representation of the battery contact arrangement during joining.

[0040] The figures are schematic examples. Identical reference numerals in the figures indicate identical functional and / or structural features.

[0041] Figure 1 shows an exploded view of a battery contacting arrangement 1 arranged in a tool 20, and Figure 2 shows a perspective view of the battery contacting arrangement 1 in the tool 20 after joining during a manufacturing process described below. The battery contacting arrangement 1 and the tool 20 are described below with reference to Figures 1 and 2.

[0042] First, the tool 20 has a lower tool half 21 and an upper tool half 22. The upper tool half 22 comprises, at a respective position predetermined for joining, a tool recess and / or a laser beam-transparent element 212 and / or an infrared beam-transparent element, so that during joining, the laser beam shines through the tool recess and / or the laser beam-transparent element 212 and / or the infrared beam-transparent element. Furthermore, the lower tool half 21 has a plurality of positioning elements 211, in particular positioning pins or positioning bolts, for the predetermined positioning and / or tensioning of a first laminating film 2, at least one current collector 3 and / or a second laminating film 4 relative to one another during the corresponding arrangement of the corresponding component in the tool.

[0043] The battery contacting arrangement 1 comprises a first laminating film 2 and a plurality of flat current collectors 3 arranged directly at a respective predetermined position of the first laminating film 2, which are arranged parallel to one another in a predetermined number in rows and columns. The first laminating film 2 is a laser beam-absorbing and / or infrared beam-absorbing laminating film. Furthermore, a second laminating film 4 is arranged directly on the first laminating film 2, such that the at least one current collector 3 is arranged directly sandwiched between the first laminating film 2 and the second laminating film 4. The second laminating film 4 is a laser beam-transparent and / or infrared beam-transparent laminating film. In the embodiment shown, the first and second laminating films 2, 4 are made of polyaramid and have a diameter of 100 μm.

[0044] The corresponding laminating film 2, 4 has a plurality of cutouts 5, which are formed such that the corresponding laminating film 2, 4 has a punched grid structure. The respective current collector 3 is arranged at two of the cutouts 5 of the corresponding laminating film 2, 4 such that the corresponding current collector 3 can be contacted via the cutout 5 by one or more battery cells or a corresponding electrical connection.

[0045] In addition, the first and / or second laminating film 2, 4 comprise conductor tracks made of copper, which connects at least one contact of the battery contacting arrangement 1 arranged at one of the recesses to a printed circuit board and / or a busbar and / or a circuit or forms the latter. The printed circuit board and / or the corresponding busbar and / or the circuit are also arranged directly in a sandwich-like manner between the first laminating film 2 and the second laminating film 4. Furthermore, the printed circuit board of the first and / or second laminating film 2, 4 is a flexible printed circuit board (“flex printed circuit”), which has the conductor tracks with a diameter of 35 μm and is made of polyimide (PI). The respective current collector 3 comprises, on a surface opposite the first laminating film 2, a contact point for the flexible printed circuit board or the busbar or the circuit.

[0046] Furthermore, a contact pad 51 is arranged on the second laminating film 4 on an outer surface in the region of two of the recesses 5 for indirectly contacting a current collector 3 arranged at the corresponding recess 5. Furthermore, the corresponding laminating film 4, 5 comprises a high-voltage connection coating in the region of a respective recess 5.

[0047] In addition, clips and / or clamps are arranged between the first and second laminating films for fixing a cover and / or a housing.

[0048] Figure 3 shows a schematic representation of the battery contact arrangement 1 during joining of a manufacturing process, which is explained below with reference to Figure 3.

[0049] The manufacturing method of the battery contacting arrangement 1 for contacting battery cells with a tool 20 having a lower and an upper tool half 21, 22 comprises arranging a first laminating film 2 on the lower tool half 21. Furthermore, a plurality of flat current collectors 3 are arranged directly at a respective predetermined position of the first laminating film 2, in a predetermined number in rows and columns parallel to one another. After the current collectors 3 have been arranged, a second, laser beam-transparent and / or infrared beam-transparent laminating film 4 is arranged directly on the first laminating film 2, such that the current collectors 3 are arranged directly sandwiched between the first laminating film 2 and the second laminating film 4.In addition, the lower tool half 21 comprises a plurality of positioning elements 211, which are designed as positioning pins or positioning bolts. As a result, the laser beam-transparent and / or infrared beam-transparent laminating film 4, the at least one current collector 3, and / or the laser beam-absorbing and / or infrared beam-absorbing laminating film 2 are each positioned and tensioned in a predetermined manner relative to one another during the corresponding arrangement by means of the positioning elements 211. Furthermore, the respective current collector 3 is cleaned, irradiated, and / or laser-structured on a contact surface 31 provided for contact with the first laminating film 2 prior to arrangement or joining.

[0050] Before joining, the tool 20 is closed by arranging the upper tool half 22 on the lower tool half 22. Furthermore, the upper tool half 22 has a tool recess and / or a laser beam-transparent and / or infrared beam-transparent element 212 at a respective position predetermined for joining, and during joining, the laser beam and / or infrared beam radiates through the tool recess and / or the laser beam-transparent and / or infrared beam-transparent element 212.

[0051] Furthermore, the manufacturing method comprises joining the first laminating film 2 and the at least one current collector 3 by means of a laser beam from a laser device 23 and / or an infrared beam from an infrared radiator. The respective current collector 3 is heated by the laser device 23 and / or the infrared radiator such that the respective current collector 3 and the first laminating film 2 are bonded by heat-sealing. Additionally or alternatively, during the joining process, the first laminating film 2 absorbs the laser beam from the laser device 23 and / or the infrared beam from the infrared radiator, such that a resulting local energy input melts the first laminating film 2.Additionally or alternatively, during joining, the laser beam of the laser device 23 and / or the infrared beam of the infrared radiator passes through the second laminating film 4 and the first laminating film 2 absorbs the laser beam of the laser device 23 and / or the infrared beam of the infrared radiator. The first laminating film 2 and the second laminating film 4 are joined to one another, in particular by hot-melt bonding. Alternatively or additionally, during joining, the laser beam of the laser device 23 and / or the infrared beam of the infrared radiator passes through the second laminating film 4 and the respective current collector 3 is heated by means of the laser beam of the laser device 23 and / or the infrared beam of the infrared radiator such that the respective current collector 3 and the first laminating film 2 and / or the second laminating film 4 are joined, in particular by hot-melt bonding.Alternatively or additionally, during joining, the laser beam of the laser device 23 and / or the infrared beam of the infrared radiator is guided around each of the current collectors 3, parallel along a longitudinal and transverse extension of the corresponding current collector 3, and / or over the corresponding current collector 3. The guidance of the laser beam of the laser device 23 and / or the infrared beam of the infrared radiator is illustrated in Figure 3 by the corresponding arrows.

[0052] The invention is not limited to the preferred embodiments described above. Rather, a number of variants are conceivable that utilize the presented solution even in fundamentally different embodiments.

[0053] * * * * *

Claims

Patent claims 1. A method for manufacturing a battery contacting arrangement (1), in particular for contacting battery cells, with a tool (20) having at least one lower tool half (21), comprising the steps of: a. arranging a first laminating film (2) on the lower tool half (21); b. arranging at least one flat current collector (3) directly at a respective predetermined position of the first laminating film (2); c. joining the first laminating film (2) and the at least one current collector (3) by means of a heat generating device.

2. Manufacturing method according to claim 1, wherein the heat generating device is a laser device (23) and / or an infrared radiator, wherein the joining of the first laminating film (2) and the at least one current collector (3) is carried out by means of a laser beam of the laser device (23) and / or by means of an infrared beam of the infrared radiator.

3. Manufacturing method according to claim 1 or 2, wherein the tool (20) further comprises an upper tool half (22), wherein before joining the tool (20) is closed by arranging the upper tool half (22) on the lower tool half (22), wherein the upper tool half (22) has a tool recess and / or a laser beam transparent element (212) and / or an infrared beam transparent element at a respective position predetermined for the joining, wherein during joining the laser beam and / or the infrared beam radiates through the tool recess and / or the laser beam transparent element (212) and / or the infrared beam transparent element.

4. Manufacturing method according to claim 2 or 3, wherein the first laminating film (2) is a laser beam-absorbing and / or infrared beam-absorbing laminating film, wherein during joining the first laminating film (2) absorbs the laser beam of the laser device (23) and / or the infrared beam of the infrared radiator, such that a resulting local energy input melts the first laminating film (2).

5. Manufacturing method according to one of the preceding claims 2 to 4, wherein during joining the respective current collector (3) is heated by means of the laser beam of the laser device (23) and / or the infrared beam of the infrared radiator such that the respective current collector (3) and the first laminating film (2) are joined by hot-melt bonding.

6. Manufacturing method according to one of the preceding claims 2 to 5, wherein after the arrangement of the at least one current collector (3), a second, laser beam transparent and / or infrared beam transparent laminating film (4) is arranged directly on the first laminating film (2) in such a way that the at least one current collector (3) is arranged directly, in particular in a sandwich-like manner, between the first laminating film (2) and the second laminating film (4).

7. Manufacturing method according to claim 6, wherein during joining the laser beam of the laser device (23) and / or the infrared beam of the infrared radiator passes through the second laminating film (4) and the first laminating film (2) passes through the laser beam of the laser device (23) and / or absorbs the infrared beam of the infrared radiator, wherein the first laminating film (2) and the second laminating film (4) are bonded to one another, in particular by hot gluing.

8. Manufacturing method according to claim 6 or 7, wherein during joining the laser beam of the laser device (23) and / or the infrared beam of the infrared radiator passes through the second laminating film (4) and the respective current collector (3) is heated by means of the laser beam of the laser device (23) and / or by means of the infrared beam of the infrared radiator such that the respective current collector (3) and the first laminating film (2) and / or the second laminating film (4) are joined by hot-melt bonding.

9. Battery contacting arrangement (1), in particular produced according to a method according to one of the preceding claims, with a first laminating film (2) and at least one flat current collector (3) arranged directly at a respective predetermined position of the first laminating film (2), wherein in particular the first laminating film (2) is a laser beam-absorbing and / or infrared beam-absorbing laminating film.

10. Battery contacting arrangement (1) according to claim 9, wherein a second laminating film (4) is arranged directly on the first laminating film (2) such that the at least one current collector (3) is arranged directly, in particular in a sandwich-like manner, between the first laminating film (2) and the second laminating film (4), wherein in particular the second laminating film (4) is a laser beam-transparent and / or infrared beam-transparent laminating film.

11. Battery contacting arrangement (1) according to claim 9 or 10, wherein the corresponding laminating film (2, 4) has a plurality of recesses (5), wherein in particular the plurality of Recesses (5) are designed such that the corresponding laminating film (2, 4) has a grid structure, further in particular a punched grid structure, wherein the respective current collector (3) is arranged on at least one, in particular two, of the recesses (5) of the corresponding laminating film (2, 4) in such a way that the corresponding current collector (3) can be contacted via the recess (5), in particular by one or more battery cells.

12. Battery contacting arrangement (1) according to claim 10 or 11, wherein the first and / or the second laminating film (2, 4) have conductor tracks, in particular made of copper, which connect at least one contact of the battery contacting arrangement (1), in particular a contact arranged on one of the recesses, to a printed circuit board and / or a busbar and / or a circuit, wherein the printed circuit board and / or the corresponding busbar and / or the circuit is also arranged directly, in particular in a sandwich-like manner, between the first laminating film (2) and the second laminating film (4).

13. Battery contacting arrangement (1) according to claim 12, wherein the circuit board of the first and / or the second laminating film (2, 4) is a flexible circuit board (FPC) which has the conductor tracks, in particular with a diameter of 35 pm, and in particular consists of polyimide (PI).

14. Battery contacting arrangement (1) according to one of the preceding claims 9 to 13, wherein on the second laminating film (4) on an outer surface in the region of at least one respective recess (5), in particular in the region of two of the recesses (5), a contact pad (51) for, in particular indirect, contacting a current collector (3) arranged on the corresponding recess (5).

15. Battery contacting arrangement (1) according to one of the preceding claims 9 to 14, wherein the corresponding laminating film (4, 5) has at least partially, in particular in the region of a respective recess (5), a high-voltage connection coating.

16. Battery contacting arrangement (1) according to one of the preceding claims 9 to 15, wherein the first laminating film (2) is arranged directly on a thermal insulation element and / or a thermal insulation layer and / or an element with a thermal insulation coating.

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