# US 10,770,697 B2 · Battery cell, battery module, and method for producing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,697 B2 - Document ID: US10770697B2 - Status: Granted - Kind: B2 - Application number: 15/998,834 - Filed: 2018-08-16 - Published: 2019-02-21 - Granted: 2020-09-08 - Earliest claimed: 2017-08-16 - Assignees: Robert Bosch GmbH - Applicants: Robert Bosch GmbH - Inventors: Andreas Ruehle; Claus Gerald Pflueger; Markus Schmitt; Peter Bauckhage; Torsten Koller - Web page: https://patentgrep.com/patent/US10770697B2 ## CPC - H01M 10/655: Solid structures for heat exchange or heat conduction - H01M 50/103: prismatic or rectangular (H01M50/109, H01M50/11 take precedence) - H01M 50/176: for prismatic or rectangular cells (H01M50/181 takes precedence) - H01M 50/186: characterised by the disposition of the sealing members - H01M 50/193: Organic material - H01M 50/198: characterised by physical properties, e.g. adhesiveness or hardness - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/24: adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) - H01M 50/55: on the same side of the cell - H01M 50/553: Terminals adapted for prismatic, pouch or rectangular cells - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/647: Prismatic or flat cells, e.g. pouch cells - 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 A battery cell having a first housing element (4) which holds the electrochemical components of the battery cell (2) and has an opening (6), and a second housing element (5) which has a voltage tap (7) to be accessed from a first surface (8) of the second housing element (5), the second housing element (5) closes off the opening (6) so that a first part region (91) of a second surface (9) of the second housing element (5) is immediately adjacent the interior space (10) of the first housing element (4), and that a second part region (92) of the second surface (9) of the second housing element (5) protrudes beyond the first housing element (4), wherein the second housing element (5) comprises a sealing element (11) connected to the first surface (8) and/or to the second part region (92) of the second surface (9). ## Claims ### Claim 1 A battery module having a battery cell, wherein the battery cell has a housing, wherein the housing comprises a first housing element which holds electrochemical components of the battery cell which comprise at least an anode, a cathode, and a separator, and furthermore has an opening, wherein the housing also comprises a second housing element which has a voltage tap connected to the anode of the battery cell or the cathode of the battery cell in an electrically conductive fashion, wherein the voltage tap is furthermore arranged to be accessed from a first surface of the second housing element, wherein the second housing element furthermore closes off the opening formed in the first housing element in such a way that a first part region of a second surface of the second housing element, which is opposite the first surface, is immediately adjacent to the interior space of the first housing element, and that a second part region of the second surface of the second housing element, which is opposite the first surface, protrudes beyond the first housing element, characterized in that the second housing element comprises a sealing element connected to at least one of the first surface and the second part region of the second surface, and wherein the battery module has a battery cell holder which comprises an interior space through which a temperature-control fluid can flow, characterized in that the battery cell is held in the battery cell holder in such a way that the sealing element seals the interior space in fluid-tight fashion from the surroundings, and that the first sealing element is arranged so that temperature-control fluid can flow around it. ### Claim 2 (depends on 1) The battery module according to claim 1, characterized in that the second housing element has a first voltage tap, connected in electrically conductive fashion to the anode of the battery cell, and a second voltage tap, connected in electrically conductive fashion to the cathode of the battery cell, wherein the first voltage tap and the second voltage tap are arranged to be accessed from a first surface of the second housing element. ### Claim 3 (depends on 1) The battery module according to claim 1, characterized in that the second housing element has a third part region which extends between the first part region of the second housing element and the second part region of the second housing element, wherein the third part region of the second housing element is furthermore connected to the first housing element. ### Claim 4 (depends on 1) The battery module according to one claim 1, characterized in that the first housing element and/or the second housing element are formed from a metal material. ### Claim 5 (depends on 1) The battery module according to claim 1, characterized in that the second part region has a minimum extent of 3 mm to 7 mm. ### Claim 6 (depends on 1) The battery module according to claim 1, characterized in that the sealing element is made from an elastomer, a silicone, or an adhesive. ### Claim 7 (depends on 1) The battery module according to claim 1, characterized in that the sealing element is connected to the first surface of the second housing element and/or the second part region of the second surface of the second housing element by being firmly bonded, by being force-fitted, by being friction locked, or by being positively locked. ### Claim 8 (depends on 1) The battery module according to claim 1, wherein the retaining element holds the sealing element of the battery cell and the second housing element of the battery cell. ### Claim 9 (depends on 1) The battery module according to claim 1, characterized in that the first surface of the second housing element is arranged to be accessed from the surroundings of the battery module. ### Claim 10 (depends on 1) A method for producing a battery module according to claim 1, the method comprising in a first method step, providing the battery cell and the battery cell holder, which has an interior space through which a temperature-control fluid can flow, and in a second method step, arranging the battery cell in the battery cell holder in such a way that the sealing element seals the interior space in fluid-tight fashion from the surroundings, and such that the first housing element is arranged so that the temperature-control fluid can flow around the first housing element. ### Claim 11 (depends on 10) The method according to claim 10, characterized in that, in the second method step, a force is applied to the second housing element in such a way that the sealing element is deformed. ### Claim 12 (depends on 1) The battery module according to claim 1, characterized in that the battery cell is a lithium-ion battery cell, and the housing has a prismatic design. ### Claim 13 (depends on 1) The battery module according to claim 1, where the sealing element is connected to the first surface. ### Claim 14 (depends on 13) The battery module according to claim 13, where the sealing element is also connected to the second part region of the second surface. ### Claim 15 (depends on 1) The battery module according to claim 1, where the sealing element is connected to the second part region of the second surface. ### Claim 16 (depends on 1) The battery module according to claim 1, characterized in that the second housing element has a third part region which extends between the first part region of the second housing element and the second part region of the second housing element, wherein the third part region of the second housing element is furthermore connected to the first housing element, and is connected by being firmly bonded and/or positively locked. ### Claim 17 (depends on 1) The battery module according to one claim 1, characterized in that the first housing element and/or the second housing element are formed from aluminum, copper, and/or nickel. ### Claim 18 (depends on 1) The battery module according to claim 1, characterized in that the sealing element is connected to the first surface of the second housing element and/or the second part region of the second surface of the second housing element by being adhesively bonded, or injection molded, or clamped, or friction locked, or positively locked. ### Claim 19 (depends on 1) The battery module according to claim 1, characterized in that the sealing element is arranged peripherally.