# US 11,114,709 B2 · Battery module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,114,709 B2 - Document ID: US11114709B2 - Status: Granted - Kind: B2 - Application number: 16/324,208 - Filed: 2017-09-12 - Published: 2020-02-06 - Granted: 2021-09-07 - Earliest claimed: 2016-09-27 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Tetsuji Omura; Kazunari Hiraide - Web page: https://patentgrep.com/patent/US11114709B2 ## CPC - H01M 10/613: Cooling or keeping cold - H01M 10/6551: Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings - H01M 10/6554: Rods or plates - H01M 10/6555: arranged between the cells - H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) - H01M 10/6565: with recirculation or U-turn in the flow path, i.e. back and forth - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - 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 module includes a battery stack having a plurality of stacked batteries, a first heat radiator facing first surface of battery stack, a first heat transfer component that is in contact with the first heat radiator and first surface to transfer heat from the battery stack to the first heat radiator, and a second heat radiator facing a second surface of the battery stack. The second surface extends in a direction intersecting with the first surface. The second heat radiator is thermally connected to the second surface directly or through the second heat transfer component. A positional relationship between the first heat transfer component and the battery stack is formed such that the center of the first heat transfer component (84) is more away from the second heat radiator than the center of the battery stack is in a direction along the first surface. ## Claims ### Claim 1 A battery module comprising: a battery stack including a plurality of stacked batteries and having a first surface and a second surface extending in a direction intersecting with the first surface; a first heat radiator facing the first surface of the battery stack; a first heat transfer component that is disposed between the first surface of the battery stack and the first heat radiator, and is in contact with the first heat radiator and the first surface to transfer heat from the battery stack to the first heat radiator; and a second heat radiator facing the second surface of the battery stack, and is thermally connected to the second surface directly or through a second heat transfer component, the second heat radiator being attached to the first, heat radiator, wherein a position of a center of the battery: stack projected on the first heat transfer component is located between a center of the first heat transfer component and the second heat radiator in a direction along the first surface. ### Claim 2 (depends on 1) The battery module according to claim 1, wherein the first heat radiator is one of a seat on which the battery stack is placed and a cooling unit having a cooling mechanism to cool the battery stack, and the second heat radiator is another of the seat and the cooling unit. ### Claim 3 (depends on 1) The battery module according to claim 1, wherein the first heat radiator includes a positioning mechanism for positioning the first heat transfer component. ### Claim 4 (depends on 1) The battery module according to claim 1, further comprising a heat transfer suppressor having lower thermal conductivity than the first heat transfer component and being interposed between the first heat radiator and the first surface so as to be situated adjacent to the first heat transfer component. ### Claim 5 (depends on 4) The battery module according to claim 4, wherein the heat transfer suppressor is an air layer. ### Claim 6 (depends on 2) The battery module according to claim 2, wherein the first heat radiator includes a positioning mechanism for positioning the first heat transfer component. ### Claim 7 (depends on 1) The battery module according to claim 1, further comprising a heat transfer suppressor having lower thermal conductivity than the first heat transfer component and being interposed between the first heat radiator and the first surface so as to be situated adjacent to the first heat transfer component. ### Claim 8 (depends on 3) The battery module according to claim 3, further comprising a heat transfer suppressor having lower thermal conductivity than the first heat transfer component and being interposed between the first heat radiator and the first surface so as to be situated adjacent to the first heat transfer component. ### Claim 9 (depends on 6) The battery module according to claim 6, further comprising a heat transfer suppressor having lower thermal conductivity than the first heat transfer component and being interposed between the first heat radiator and the first surface so as to be situated adjacent to the first heat transfer component. ### Claim 10 (depends on 7) The battery module according to claim 7, wherein the heat transfer suppressor is an air layer. ### Claim 11 (depends on 8) The battery module according to claim 8, wherein the heat transfer suppressor is an air layer. ### Claim 12 (depends on 9) The battery module according to claim 9, wherein the heat transfer suppressor is an air layer. ### Claim 13 (depends on 1) The battery module according to claim 1, wherein the first surface is perpendicular to the second surface. ### Claim 14 (depends on 3) The battery module according to claim 3, wherein the positioning mechanism includes at least one selected from the group consisting of a printed mark, a protrusion, a recess, and a threaded hole for a fastening screw. ### Claim 15 (depends on 6) The battery module according to claim 6, wherein the positioning mechanism includes at least one selected from the group consisting of a printed mark, a protrusion, a recess, and a threaded hole for a fastening screw. ### Claim 16 A battery module comprising: a battery stack including a plurality of stacked batteries and having a first surface and a second surface extending in a direction intersecting with the first surface; a first heat radiator facing the first surface of the battery stack; a first heat transfer component that contacts with the first surface of the battery stack is in contact with the first heat radiator and the first surface to transfer heat from the battery stack to the first heat radiator; and a second heat radiator contacting with the second surface of the battery stack, and is thermally connected to the second surface directly or through a second heat transfer component, the second heat radiator being attached to the first heat radiator, wherein a position of a center of the battery stack projected on the first heat transfer component is located between a center of the first heat transfer component and the second heat radiator in a direction along the first surface.