# US 11,444,342 B2 · Storage battery comprising a cooling device connected to the bus bar > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,342 B2 - Document ID: US11444342B2 - Status: Granted - Kind: B2 - Application number: 16/625,019 - Filed: 2018-07-02 - Published: 2020-05-21 - Granted: 2022-09-13 - Earliest claimed: 2017-07-03 - Assignees: Miba eMobility GmbH - Applicants: Miba eMobility GmbH - Inventors: Stefan Astecker; Stefan Gaigg - Web page: https://patentgrep.com/patent/US11444342B2 ## CPC - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) - H01M 10/6567: Liquids - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/505: comprising a single busbar - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The invention relates to a rechargeable battery (1) comprising several storage modules (3) for electric current, wherein the storage modules (3) are interconnected via at least one busbar (4), and a cooling device (2), which comprises a single-layer or multi-layer film (5) and with this film (5) lies against the at least one busbar (4), is arranged on the busbar (4). ## Claims ### Claim 1 A rechargeable battery comprising several storage modules for electric current, wherein the storage modules are interconnected via at least one busbar, and a cooling device is arranged on the busbar, wherein the cooling device comprises a first film and with this first film lies directly against the at least one busbar, wherein the first film is single-layer or multi-layer, and wherein the first film comprises a laminate comprising a first plastic film and a first enforcement layer connected thereto, a metal film connected to the first enforcement layer or a metalized further plastic film connected to the first enforcement layer. ### Claim 2 (depends on 1) The rechargeable battery according to claim 1, wherein the cooling device comprises a second film, wherein the first film and the second film are connected to one another forming at least one coolant channel between the first film and the second film, and wherein the second film is single-layer or multi-layer. ### Claim 3 (depends on 2) The rechargeable battery according to claim 2, wherein the second film comprises at least one second plastic film, which is partially connected to the first plastic film of the laminate of the first film in connection areas, such that between the connection areas at least one cavity is formed, which forms the at least one coolant channel. ### Claim 4 (depends on 3) The rechargeable battery according to claim 3, wherein the second film also comprises a laminate comprising the second plastic film and a second enforcement layer connected thereto. ### Claim 5 (depends on 1) The rechargeable battery according to claim 1, wherein the first enforcement layer comprises a fiber reinforcement. ### Claim 6 (depends on 5) The rechargeable battery according to claim 5, wherein the fiber reinforcement is formed by a woven fabric. ### Claim 7 (depends on 1) The rechargeable battery according to claim 1, wherein at least one of the first plastic film, a second plastic film, and the metalized further plastic film comprises a plastic material that is selected from a group consisting of polyethylene (PE), polyoxymethylene (POM), polyamide (PA), polyphenylene sulfide (PPS), polyethylene terephthalate (PET), cross-linked polyolefins, thermoplastic elastomers on ether basis/ester basis, styrene block copolymers, silicone elastomers. ### Claim 8 (depends on 1) The rechargeable battery according to claim 1, wherein in the direction towards the at least one storage module several films are arranged on top of one another and several cooling channels are formed between these films. ### Claim 9 (depends on 8) The rechargeable battery according to claim 8, wherein a fiber layer is arranged between the several films arranged on top of one another. ### Claim 10 (depends on 9) The rechargeable battery according to claim 9, wherein the coolant channel or the coolant channels is or are at least partially formed in the fiber layer. ### Claim 11 (depends on 1) The rechargeable battery according to claim 1, wherein a coolant outlet and/or a coolant inlet is formed by a distancing element between the first film and the second film. ### Claim 12 (depends on 1) The rechargeable battery according to claim 1, wherein the cooling device is arranged between poles of the storage modules and the busbar. ### Claim 13 (depends on 12) The rechargeable battery according to claim 12, wherein at least one of the first film and the second film at least partly comprises an electrically insulating material.