# US 12,603,360 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 12,603,360 B2 - Document ID: US12603360B2 - Status: Granted - Kind: B2 - Application number: 18/182,367 - Filed: 2023-03-13 - Published: 2024-03-28 - Granted: 2026-04-14 - Earliest claimed: 2022-09-26 - Assignees: SK On Co., Ltd. - Applicants: SK On Co., Ltd. - Inventors: Won Seok Jeong; Hae Ryong Jeon; Seung Dong Lee - Web page: https://patentgrep.com/patent/US12603360B2 ## CPC - H01M 10/658: by thermal insulation or shielding - H01M 50/24: adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) - H01M 10/0404: {Machines for assembling batteries} - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/211: adapted for pouch cells - H01M 50/289: characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) - H01M 50/35: Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages - H01M 50/367: Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems - H01M 50/463: Separators, membranes or diaphragms characterised by their shape - 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 of the present disclosure includes a plurality of cell stacks spaced apart from each other in a horizontal direction, a plurality of side walls disposed between the plurality of cell stacks and spaced apart from each other in the horizontal direction, and a plate accommodated in a hollow between the plurality of side walls. Each of the plurality of side walls includes a side hole connected to the hollow. ## Claims ### Claim 1 A battery module comprising: a plurality of cell stacks spaced apart from each other in a horizontal direction; a plurality of side walls disposed between the plurality of cell stacks and spaced apart from each other in the horizontal direction; and a plate accommodated in a hollow between the plurality of side walls, wherein each of the plurality of side walls comprises a side hole connected to the hollow, and wherein the plate is moved to shield the side hole of a second side wall of the plurality of side walls by gas inflowing into the hollow through the side hole of a first side wall of the plurality of side walls. ### Claim 2 (depends on 1) The battery module of claim 1, wherein an upper part of the hollow is connected to an external space, and the inflowing gas is discharged to the external space through the upper part of the hollow. ### Claim 3 (depends on 1) The battery module of claim 1, wherein a length between the first side wall and the plate becomes greater than a length between the second side wall and the plate when the gas inflows into the side hole of the first side wall. ### Claim 4 (depends on 1) The battery module of claim 1, wherein each of the plurality of cell stacks comprises a plurality of battery cells stacked in a vertical direction. ### Claim 5 (depends on 4) The battery module of claim 4, wherein each of the plurality of side walls comprises a plurality of sub-areas disposed in the vertical direction, and each of the plurality of sub-areas contacts with one of the plurality of battery cells. ### Claim 6 (depends on 5) The battery module of claim 5, wherein the side hole is disposed in each of the plurality of sub-areas. ### Claim 7 (depends on 1) The battery module of claim 1, further comprising: a plurality of connecting parts configured to connect between the plurality of side walls to form the hollow. ### Claim 8 (depends on 7) The battery module of claim 7, wherein a cross section in a vertical direction of each of the plurality of connecting parts is concave. ### Claim 9 (depends on 1) The battery module of claim 1, wherein a first side end of the plate is coupled to an inside of a first side wall of the plurality of side walls, and a second side end of the plate is coupled to an inside of a second side wall of the plurality of side walls. ### Claim 10 (depends on 9) The battery module of claim 9, wherein the first side end of the plate is separated from the inside of the first side wall by gas inflowing into the hollow through a side hole of the first side wall and then moved to the inside of the second side wall, and a side hole of the second side wall is shielded by the plate. ### Claim 11 (depends on 1) The battery module of claim 1, wherein the plate comprises an insulating material. ### Claim 12 A battery module comprising: a first cell stack and a second cell stack spaced apart from each other in a first horizontal direction; a partition wall comprising a first side wall and a second side wall disposed between the first cell stack and the second cell stack, and a plurality of hollows disposed between the first side wall and the second side wall; and a plurality of plates, each of the plurality of plates being accommodated in each of the plurality of hollows, wherein each of the first side wall and the second side wall comprises a plurality of side holes, and wherein the plurality of plates are moved to shield the side holes of the second side wall by gas inflowing into the plurality of hollows through the side holes of the first side wall. ### Claim 13 (depends on 12) The battery module of claim 12, wherein each of the plurality of side holes is connected to any one hollow of the plurality of hollows. ### Claim 14 (depends on 13) The battery module of claim 13, wherein the plurality of hollows comprise a first hollow connected to a first side hole of the first side wall and a second side hole of the second side wall among the plurality of side holes, and a second hollow connected to a third side hole of the first side wall and a fourth side hole of the second side wall among the plurality of side holes. ### Claim 15 (depends on 14) The battery module of claim 14, wherein the plurality of plates comprise a first plate accommodated in the first hollow and a second plate accommodated in the second hollow. ### Claim 16 (depends on 15) The battery module of claim 15, wherein the first plate is moved to shield the second side hole when gas inflows into the first hollow through the first side hole. ### Claim 17 (depends on 16) The battery module of claim 16, wherein the gas is discharged to an external space through the first hollow. ### Claim 18 (depends on 12) The battery module of claim 12, wherein the partition wall further comprises a plurality of connecting parts spaced apart from each other in a second horizontal direction between the first side wall and the second side wall to form the plurality of hollows. ### Claim 19 (depends on 12) The battery module of claim 12, wherein each of the first cell stack and the second cell stack comprises a plurality of battery cells stacked in a vertical direction, the plurality of side holes are disposed on each of the first side wall and the second side wall according to a row corresponding to the vertical direction and a column corresponding to the second horizontal direction, and each of the plurality of plates has a size covering side holes located in the same column among the plurality of side holes.