# US 12,002,939 B2 · Battery module including cooling member, and battery pack and energy storage system including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,002,939 B2 - Document ID: US12002939B2 - Status: Granted - Kind: B2 - Application number: 17/267,948 - Filed: 2020-05-27 - Published: 2021-07-15 - Granted: 2024-06-04 - Earliest claimed: 2019-06-17 - Assignees: LG Energy Solution, Ltd. - Applicants: LG Chem, Ltd. - Inventors: Jae-Min Yoo; Jeong-O Mun; Eun-Gyu Shin; Yoon-Koo Lee - Web page: https://patentgrep.com/patent/US12002939B2 ## CPC - H01M 10/6557: arranged between the cells - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 10/6568: characterised by flow circuits, e.g. loops, located externally to the cells or cell casings - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/325: comprising deformable valve members, e.g. elastic or flexible valve members - H01M 50/35: Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages - H01M 50/505: comprising a single busbar - H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules - 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 A battery module reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion. ## Claims ### Claim 1 A battery module, comprising: a plurality of secondary batteries, each secondary battery of the plurality of secondary batteries having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and the plurality of secondary batteries arranged in a front and rear direction in two rows; a cooling member including a body portion having an upper wall, a lower wall and side walls, the cooling member interposed between the two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries; a fixing groove elongated from a front end to a rear end of the body portion in the lower wall of the cooling member; a tray including a support portion extending in a horizontal direction so that the plurality of secondary batteries are mounted to an upper surface of the support portion, and side portions extending upward from a left end and a right end of the support portion; and a protrusion extending upwardly from the support portion, the protrusion extending into the fixing groove. ### Claim 2 (depends on 1) The battery module according to claim 1, further comprising: a bus bar assembly including a bus bar configured to electrically connect the plurality of secondary batteries, and a bus bar housing coupled to a side portion of the tray in a state where the bus bar is mounted thereto; an upper plate coupled to the bus bar housing and configured to cover an upper portion of the plurality of secondary batteries; a front cover coupled to a front end of the support portion and configured to cover a foremost side of the plurality of secondary batteries; and a rear cover coupled to a rear end of the support portion and configured to cover a rearmost side of the plurality of secondary batteries. ### Claim 3 (depends on 2) The battery module according to claim 2, wherein a front end of the cooling member is coupled to the front cover, wherein a rear end of the cooling member is coupled to the rear cover, and wherein a lower end of the cooling member is coupled to the support portion of the tray. ### Claim 4 (depends on 3) The battery module according to claim 3, wherein an insert opening indented inward is formed at a portion of each of the front cover and the rear cover so that a portion of each of the front end and the rear end of the cooling member is respectively inserted therein. ### Claim 5 (depends on 4) The battery module according to claim 4, wherein a coolant injection port and a coolant discharge port are provided to the front end and the rear end of the cooling member, respectively. ### Claim 6 (depends on 1) The battery module according to claim 1, wherein a coolant injection port is provided to an upper center of the cooling member, and a coolant discharge port is provided to each of a front end and a rear end of the body portion, and wherein a coolant channel configured to allow a coolant injected into the coolant injection port to move in the front and rear direction is formed inside the cooling member. ### Claim 7 (depends on 1) The battery module according to claim 1, wherein beading portions raised in a left and right direction are provided to outer sides of the cooling member in the left and right direction. ### Claim 8 (depends on 1) A battery pack, comprising at least one battery module as defined in claim 1. ### Claim 9 (depends on 8) An energy storage system, comprising the battery pack as defined in claim 8. ### Claim 10 (depends on 2) The battery module according to claim 2, further comprising: a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion; and a vent hole in the bus bar assembly, the vent hole being vertically aligned with the gas discharge passage of the body portion. ### Claim 11 (depends on 1) The battery module according to claim 1, further comprising a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion. ### Claim 12 (depends on 11) The battery module according to claim 11, further comprising a coolant channel configured to allow a coolant injected into the coolant injection port to move in the front and rear direction inside the cooling member. ### Claim 13 (depends on 12) The battery module according to claim 12, further comprising a coolant injection port at the front end of the body portion and a coolant discharge port at the rear end of the body portion. ### Claim 14 (depends on 1) The battery module according to claim 1, wherein the body portion of the cooling member has a first side wall and a second side wall. ### Claim 15 (depends on 3) The battery module according to claim 3, wherein a first projection on the front cover engages the body portion, and wherein a second projection on the rear cover engages the body portion. ### Claim 16 (depends on 3) The battery module according to claim 3, further comprising a first opening in the front cover and a second opening in the rear cover, wherein the cooling member extends through the first opening and the second opening. ### Claim 17 (depends on 16) The battery module according to claim 16, wherein a first projection in the first opening engages the body portion, and wherein a second projection in the rear cover engages the body portion. ### Claim 18 (depends on 17) The battery module according to claim 17, wherein the first projection and second projection engage the fixing groove.