CN114497830A - Battery cell module and method for producing such a module - Google Patents

Battery cell module and method for producing such a module Download PDF

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Publication number
CN114497830A
CN114497830A CN202111261922.4A CN202111261922A CN114497830A CN 114497830 A CN114497830 A CN 114497830A CN 202111261922 A CN202111261922 A CN 202111261922A CN 114497830 A CN114497830 A CN 114497830A
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CN
China
Prior art keywords
battery cell
cell module
housing
thin
film
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
CN202111261922.4A
Other languages
Chinese (zh)
Inventor
M·科勒
I·贝格曼
H·奥普费尔
T·保莱瑟
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.)
Audi AG
Volkswagen AG
Original Assignee
Audi AG
Volkswagen AG
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 Audi AG, Volkswagen AG filed Critical Audi AG
Publication of CN114497830A publication Critical patent/CN114497830A/en
Pending legal-status Critical Current

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    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/005—Devices for making primary cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/42—Grouping of primary cells into batteries
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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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)
  • Battery Mounting, Suspending (AREA)

Abstract

The present invention relates to a battery cell module and a method for manufacturing such a module. A battery cell module (1) is proposed, comprising a battery cell module housing (2) and at least one thin-film battery cell (3) arranged therein and having a square configuration, wherein the at least one thin-film battery cell (3) has a battery cell housing (6) formed from a thin film, and wherein the battery cell housing (6) is crimped and welded at least on the end sides and therefore has a sealing weld seam (7), at least one end of which, viewed in the longitudinal direction thereof, has an overhang (8) projecting beyond the outer contour of the battery cell housing (6). It is advantageously provided that the projection (8) is arranged in a passage (9) or in a recess of the battery cell module housing (2).

Description

Battery cell module and method for producing such a module
Technical Field
The invention relates to a battery cell module (zellmodule) according to the invention. According to the invention, the invention further relates to a method for producing such a battery cell module.
Background
A thin-film battery cell with a square configuration (referred to here as a Pouch cell (Pouch-Zelle)) of a rechargeable battery or battery having a cell housing consisting of a flexible casing with a circumferential sealing weld seam (Siegelnaht) is known from EP 3118910 a 1. Two or more such thin film battery cells are united in a stack. For this purpose, each thin-film battery cell is held by means of oppositely arranged profiles made of an elastomer. According to one embodiment, the sealing bead of each thin-film battery cell is arranged in a recess (aussapraung) of the profile. According to a second embodiment, two profiles arranged directly adjacent to one another receive a sealing seam of the thin-film battery cell between them. The stack formed by two or more thin-film battery cells together with the profiles is fixed by means of clamps, tension bands, screws or bolts. Furthermore, it is known from this document to fix the stack in a housing.
From EP 3499600 a1, a battery pack (Akkupack) is known, which has at least two film cells or pouch cells with a square shape in a housing. Between the pouch cells and between the housing wall and the adjacent pouch cell, a filler material is arranged, which is made of a reversibly elastically deformable filler material and which can be increased in volume in accordance with the pouch cell. According to one embodiment, the filling material is formed by a face-type butadiene rubber mat. According to a second embodiment, the filling material is formed from a casting compound (Vergussmasse), for example from an elastomer-modified polyurethane.
Furthermore, from practice, thin-film or pouch cells with a square configuration are known, which in each case have a cell housing formed from a film, wherein the cell housing is flanged and welded at least at the end sides and therefore has a sealing weld seam which, viewed in its longitudinal direction, has an overhang (ueberstan) at least at one end which protrudes through the outer contour of the cell housing (in particular the lower corner of the cell housing). Such an excess is also sometimes referred to in the art as "batear" because it has a profile reminiscent of a bat ear. Such a contour requires an increased installation space in the provided battery cell module housing, in which two or more such thin-film battery cells are preferably already arranged and fixed.
Disclosure of Invention
According to a first aspect of the invention, it is an object of the invention to provide an alternative battery cell module in view of the prior art with a battery cell module housing and with at least one thin-film battery cell arranged therein having a square configuration, which battery cell module, while retaining the advantages of the prior art, requires a reduced installation space for the arrangement and fixing of the thin-film battery cell in the battery cell module housing. According to a second aspect of the invention, it is an object of the invention to specify a suitable method for manufacturing such a battery cell module.
Starting from a battery cell module having a battery cell module housing and having at least one thin-film battery cell arranged therein and having a square configuration, wherein the at least one thin-film battery cell has a battery cell housing which is formed from a film, and wherein the battery cell housing is crimped and welded at least at one end and therefore has a sealing weld seam which, viewed in its longitudinal direction, has at least one end an overhang which protrudes over the outer contour of the battery cell housing, the object mentioned is achieved in that the overhang is arranged in a through-opening (durchbrechhung) or in a recess of the battery cell module housing.
Advantageously, no structural space is required in the battery cell module housing for the projection of the thin-film battery cell by this measure, since this projection is accommodated by the passage or the recess of the battery cell module housing. Furthermore, the through-openings or recesses lead to a minimization of the weight of the battery cell module and a more compact implementation, with a saving in material costs.
The present specification describes preferred developments or embodiments of the invention.
For this purpose, the at least one thin-film battery cell is supported at the battery cell module housing at least in sections in the middle of a viscous and/or elastic material which is arranged between the thin-film battery cell and the battery cell module housing and is applied to the latter. This measure has several advantages. In this way, tolerance compensation (Toleranzausgleich) between the thin-film battery cell and the battery cell module housing is achieved on the one hand by means of the adhesive and/or elastic material. On the other hand, the membrane of the battery cell housing is advantageously geometrically decoupled from a possibly sharp inner contour of the battery cell module housing, which is preferably made of metal, thereby avoiding damage in the case of a battery cell module housing equipped with a membrane battery cell(s). Furthermore, the viscous and/or elastic material allows a slight movement of the thin-film battery cells in the battery cell module housing, whereas the occurrence of per se known "swelling"/"breathing" of the thin-film battery cells and local mechanical stresses are reduced due to the planar cell attachment to the battery cell module housing. In addition, possible movable components in the cell module housing are protected more efficiently against vibrations by this measure due to the improved fixing. Finally, this measure makes it possible to achieve an improved water and dust protection of the thin-film battery cell and an electrical insulation with respect to the battery cell module housing, which is made of metal in particular.
In a further development of the invention, it is provided that the passage or the recess is dimensioned larger than the projection of the sealing weld, so that a free space (Freiraum) is formed between the projection and the inner contour of the passage or the recess. Advantageously, the risk of damage to the cell housing of the thin-film battery cell is thereby further reduced.
Furthermore, this measure advantageously provides the possibility of the free space being occupied by the adhesive and/or elastic material, whereby the projection is surrounded by the adhesive and/or elastic material in a form-and material-fitting manner and the thin-film battery cell is reliably fixed in the battery cell module housing. In addition, this measure also leads to an improved water resistance and an improved dust resistance, in particular in the case of the provision of the through-openings.
As already indicated above, the adhesive and/or elastic material is preferably designed to be electrically insulating. Further preferably, by providing it with, for example, alumina (Al)2O3) And/or aluminum nitride (AlN), viscous and/or elastomeric materials are constructed with high thermal conductivity. The latter measure ensures reliable heat dissipation during operation of the battery cell module or of the battery produced therefrom.
In order to be able to mount the adhesive and/or elastic material comfortably at the battery cell module housing, the adhesive and/or elastic material may comprise a carrier film therefor.
For fastening the adhesive and/or elastic material or its carrier film to the battery cell module housing, it can be constructed self-adhesive or have an adhesive layer.
According to a preferred embodiment of the invention, the adhesive material is formed by a silicone foam or a silicone adhesive, which preferably solidifies or hardens shortly after the battery cell module housing is equipped with the thin-film battery cell(s).
As regards the elastic material, it is formed according to a preferred embodiment of the invention from a thermoplastic.
The invention also relates to a method for producing a battery cell module of the aforementioned type, having the following steps:
a) providing at least one thin-film battery cell with a square configuration, wherein the at least one thin-film battery cell has a battery cell housing which is formed from a thin film, and wherein the battery cell housing is flanged and welded at least at the end sides and therefore has a sealing weld seam which, viewed in its longitudinal direction, has at least one end an overhang which protrudes through the outer contour of the battery cell housing,
b) providing a battery cell module housing having a through-opening or a recess for accommodating an excess of a sealing weld of the battery cell housing, wherein the through-opening is dimensioned larger than the excess of the sealing weld, such that a free space is formed between the excess and an inner contour of the through-opening or the recess,
c) applying a viscous and/or elastic material at least section by section to the inner contour of the battery cell module housing, and
d) the battery cell module housing is equipped with the at least one thin-film battery cell in such a way that the thin-film battery cell is supported at the battery cell module housing via an adhesive and/or elastic material, the projection penetrates into the passage or recess of the battery cell module housing and the free space between the projection and the inner contour of the passage or recess is occupied by the adhesive and/or elastic material.
Drawings
The invention will be explained in detail below on the basis of embodiments which are schematically shown in the drawings. However, the present invention is not limited to this embodiment, but encompasses all designs defined by the present invention. Wherein:
figure 1 very schematically shows a perspective view of a battery cell module constructed according to the present invention,
figure 2 shows a perspective individual illustration of a battery cell module housing of the battery cell module according to figure 1,
figure 3 shows a separate illustration of a thin-film battery cell of the battery cell module according to figure 1,
figure 4 shows a detail "Z" according to figure 3,
figure 5 shows a detail "Y" according to figure 3,
figure 6 shows a detail "X" according to figure 1,
fig. 7 shows the battery cell module according to fig. 1 in longitudinal section ("I-I" section according to fig. 1), an
Fig. 8 shows a detail "W" according to fig. 7.
Detailed Description
Fig. 1 shows, firstly, a battery cell module 1 of a storage battery or battery, which has a cell module housing 2 and a stack of a plurality of square-shaped thin-film battery cells 3 (also referred to in the art as pouch cells) arranged therein. According to this exemplary embodiment, the battery cell module housing 2 is formed in two parts with a housing base 4 in the form of a U-profile with a housing base 4a and two housing walls 4b,4c and a housing cover 5 which closes the U-profile, thereby creating a closed hollow profile, viewed in cross section, for receiving the thin-film battery cells 3 (see fig. 2 and 3).
The cell module housing 2 is preferably made of metal, for example steel, aluminum or an aluminum alloy. The invention is not, however, restricted to such battery cell module housings 2, but also includes, for example, battery cell module housings 2 which consist of plastic or composite material or which are formed by elongated, stretched extruded profiles (strangpressprofile) consisting of metal or of plastic or composite material (not shown in the drawing).
As already explained above, the known thin-film battery cells 3 with a square configuration, which are shown in fig. 3 to 5, have a battery cell housing 6 made of a flexible casing which is flanged and welded at least at the end. According to this exemplary embodiment, the membrane battery cell 3 has sealing welds 7 at both ends, which extend from the top downward in each case in view of the drawing and which currently have or are configured, on the underside of the housing base 4, as an overhang 8 (also referred to in the art as "batons") extending beyond the outer contour of the battery cell housing 6.
As can be seen in particular from fig. 2, 6 to 8, the housing base 4a of the housing base 4 of the battery module housing 2 has a through-opening 9. The passages 9 each correspond to an excess portion 8 or "bateria" and accommodate the relevant excess portion 8 in the state in which the cell module housing 2 is equipped with the thin-film battery cells 3 (see in particular fig. 7 and 8). This advantageously achieves that: the stack of thin-film battery cells 3 lies tightly against the inner contour of the battery cell module housing 2 (in particular also its housing walls 4a,4 b). Instead of the passages 9, recesses (blind holes), not shown, can also be provided in the housing base 4 a.
However, according to this embodiment, this is carried out at least section by section under the intermediary of a viscous (10) and/or elastic material arranged between the relevant thin-film battery cell 3 and the battery cell module housing 2 and preferably applied to the latter (see fig. 7 and 8), so that the relevant thin-film battery cell 3 or the stack of thin-film battery cells 3 is supported at the inner contour of the battery cell module housing 2 indirectly via said viscous (10) and/or elastic material. Preferably by providing it with, for example, alumina (Al)2O3) And/or aluminum nitride (AlN), the viscous (10) and/or elastic material being electrically insulated and configured with a high thermal conductivity.
In order to be able to mount the adhesive (10) and/or elastic material comfortably at the battery cell module housing 2, the adhesive (10) and/or elastic material comprises a carrier film, not shown, for it. For fastening the adhesive (10) and/or elastic material or its carrier film to the battery cell module housing 2, it can be constructed self-adhesive or have an adhesive layer not shown.
According to a preferred embodiment, the adhesive material 10 is formed from a "hardenable" silicone foam or silicone adhesive, wherein after hardening the elastic state of the material is understood. According to a preferred embodiment, the elastic material consists of a thermoplastic.
As regards the above-mentioned projection 8 or the passage 9 or recess of the "batwing" for receiving the sealing weld 7 of the battery cell housing 6, it is dimensioned larger than the projection 8 of the sealing weld 7, so that a free space 11 is formed between the projection 8 and the inner contour of the passage 9 or recess. The free space 11 is occupied by the above-mentioned viscous (10) and/or elastic material, so that the projection 8 is surrounded by it in a form-and material-fitting manner and the associated thin-film battery cell 3 is securely fixed in the battery cell module housing 2.
The method for manufacturing a battery cell module 1 of the aforementioned type is mainly characterized by the following steps:
a) at least one thin-film battery cell 3 having a square configuration is provided, wherein the at least one thin-film battery cell 3 has a battery cell housing 6 which is formed from a thin film, and wherein the battery cell housing 6 is crimped and welded at least at the end sides and therefore has a sealing weld seam 7 which, viewed in its longitudinal direction, has at least one end an overhang 8 which projects beyond the outer contour of the battery cell housing 6,
b) providing a battery cell module housing 2 having a through-opening 9 or a recess for accommodating an excess 8 of a sealing weld 7 of a battery cell housing 6, wherein the through-opening 9 is dimensioned larger than the excess 8 of the sealing weld 7, such that a free space 11 is formed between the excess 8 and the inner contour of the through-opening 9 or the recess,
c) applying a viscous (10) and/or elastic material to the inner contour of the battery cell module housing 2 at least in sections, and
d) the battery cell module housing 2 is equipped with the at least one thin-film battery cell 3 in such a way that it is supported on the battery cell module housing 2 via a viscous (10) and/or elastic material, the projection 8 penetrating into the passage 9 or the recess of the battery cell module housing 2 and the free space 11 between the projection 8 and the inner contour of the passage 9 or the recess being occupied by the viscous (10) and/or elastic material.
If, as is the case, more than one thin-film battery cell 3 is provided, it is first preferably united into a stack and then brought into the battery cell housing module 2 according to step d).
List of reference numerals
1 Battery cell module
2 Battery cell module housing
3 thin film battery cell
4 base of shell
4a bottom of the housing
4b casing wall
4c housing wall
5 casing cover
6 Battery cell casing
7 sealing weld
8 beyond part
9 piercing part
10 adhesive material
11 free space.

Claims (10)

1. A battery cell module (1) having a battery cell module housing (2) and having at least one thin-film battery cell (3) arranged therein with a square configuration, wherein the at least one thin-film battery cell (3) has a battery cell housing (6) which is formed from a film, and wherein the battery cell housing (6) is crimped and welded at least on the end sides and thus has a sealing weld seam (7) which, viewed in its longitudinal direction, has at least one end an overhang (8) which protrudes beyond the outer contour of the battery cell housing (6), characterized in that the overhang (8) is arranged in a through-opening (9) or a recess of the battery cell module housing (2).
2. The battery cell module (1) according to claim 1, characterized in that at least one of the thin-film battery cells (3) is supported at the battery cell module housing (2) at least section by section in the intermediary of a viscous (10) and/or elastic material arranged between the thin-film battery cell and the battery cell module housing (2) and applied to the battery cell module housing.
3. The battery cell module (1) according to claim 1 or 2, characterised in that the through-going portion (9) or recess is dimensioned larger than the excess portion (8) of the sealing weld (7) such that a free space (11) is formed between the excess portion (8) and the inner contour of the through-going portion (9) or recess dimension.
4. The battery cell module (1) according to claim 3, characterized in that the free space (11) is occupied by a viscous (10) and/or elastic material.
5. The battery cell module (1) according to one of the preceding claims, characterized in that the adhesive (10) and/or elastic material is constructed electrically insulating and thermally conductive.
6. The battery cell module (1) according to any one of the preceding claims, characterized in that the adhesive (10) and/or elastic material comprises a carrier film therefor.
7. The battery cell module (1) according to any one of the preceding claims, characterised in that the adhesive (10) and/or elastic material is constructed self-adhesive or has an adhesive layer.
8. The battery cell module (1) according to any one of the preceding claims, characterized in that the adhesive material (10) is formed by a silicone foam or a silicone adhesive.
9. The battery cell module (1) according to any one of the preceding claims, characterized in that the elastic material consists of a thermoplastic.
10. A method for manufacturing a battery cell module (1) according to any one of the preceding claims, characterized by the steps of:
a) providing at least one thin-film battery cell (3) having a square configuration, wherein the at least one thin-film battery cell (3) has a battery cell housing (6) which is formed from a thin film, and wherein the battery cell housing (6) is crimped and welded at least at the end sides and thus has a sealing weld seam (7) which, viewed in its longitudinal direction, has at least one end an overhang (8) which protrudes beyond the outer contour of the battery cell housing (6),
b) providing a battery cell module housing (2) having a through-opening (9) or a recess for accommodating an excess (8) of a sealing weld (7) of the battery cell housing (6), wherein the through-opening (9) is dimensioned larger than the excess (8) of the sealing weld (7) such that a free space (11) is formed between the excess (8) and an inner contour of the through-opening (9) or the recess,
c) applying a viscous (10) and/or elastic material to the inner contour of the battery cell module housing (2) at least in sections, and
d) the battery cell module housing (2) is equipped with at least one thin-film battery cell (3) in such a way that it is supported on the battery cell module housing (2) via the adhesive (10) and/or elastic material, the projection (8) penetrating into a passage (9) or a recess of the battery cell module housing (2) and the free space (11) between the projection (8) and the inner contour of the passage (9) or recess being occupied by the adhesive (10) and/or elastic material.
CN202111261922.4A 2020-10-28 2021-10-28 Battery cell module and method for producing such a module Pending CN114497830A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020213561.4A DE102020213561B3 (en) 2020-10-28 2020-10-28 Cell module and method for producing such
DE102020213561.4 2020-10-28

Publications (1)

Publication Number Publication Date
CN114497830A true CN114497830A (en) 2022-05-13

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CN (1) CN114497830A (en)
DE (1) DE102020213561B3 (en)

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DE102013021400A1 (en) * 2013-12-13 2015-06-18 Daimler Ag Single cell, apparatus and method for assembling a cell block
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