US 12,431,570 B2
Battery module having partition wall and thermal insulation layer for fire inhibition
Sang Hyun Jo, Daejeon (KR); Jin Kyu Shin, Daejeon (KR); and Sung Goen Hong, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/800,737
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Apr. 22, 2021, PCT No. PCT/KR2021/005070
§ 371(c)(1), (2) Date Aug. 18, 2022,
PCT Pub. No. WO2022/004997, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 10-2020-0079313 (KR), filed on Jun. 29, 2020.
Prior Publication US 2023/0099554 A1, Mar. 30, 2023
Int. Cl. H01M 50/24 (2021.01); H01M 10/04 (2006.01); H01M 50/143 (2021.01); H01M 50/209 (2021.01); H01M 50/289 (2021.01); H01M 50/507 (2021.01)
CPC H01M 50/24 (2021.01) [H01M 10/0472 (2013.01); H01M 50/143 (2021.01); H01M 50/209 (2021.01); H01M 50/289 (2021.01); H01M 50/507 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A battery module comprising:
a protective case;
a cell module assembly comprising two or more cell stacks in the protective case, each of the two or more cell stacks having a plurality of battery cells stacked in a vertical direction; and
a first partition wall between the two or more cell stacks and between the two or more cell stacks and the protective case,
wherein the first partition wall comprises:
a pair of vertical partition walls disposed so as to face each other and spaced apart from each other by a predetermined distance, each of the vertical partition walls having a flat shape;
a connection wall configured to connect upper ends of the vertical partition walls to each other; and
a first bent wall and a second bent wall extending from opposite vertical side edges of each of the pair of vertical partition walls, the first bent wall and the second bent wall bent or curved toward one of the two or more cell stacks located adjacent thereto.