US 12,463,273 B2
Battery module, battery rack comprising same, and power storage device
Seung-Min Ok, Daejeon (KR); Sung-Goen Hong, Daejeon (KR); Hyeok Namgoung, Daejeon (KR); Kyung-Hyun Bae, Daejeon (KR); Jin-Kyu Shin, Daejeon (KR); and Jin-Kyu Lee, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/624,899
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Feb. 4, 2021, PCT No. PCT/KR2021/001505
§ 371(c)(1), (2) Date Sep. 21, 2022,
PCT Pub. No. WO2021/172785, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 10-2020-0024457 (KR), filed on Feb. 27, 2020.
Prior Publication US 2023/0223621 A1, Jul. 13, 2023
Int. Cl. H01M 50/143 (2021.01); H01M 50/186 (2021.01); H01M 50/193 (2021.01); H01M 50/204 (2021.01)
CPC H01M 50/143 (2021.01) [H01M 50/186 (2021.01); H01M 50/193 (2021.01); H01M 50/204 (2021.01)] 12 Claims
OG exemplary drawing
 
1. A battery module, comprising:
a cell assembly including a plurality of secondary batteries;
a module housing in which the cell assembly is received in an internal space, the module housing having a bottom wall supporting the cell assembly, a top wall and a side wall extending between the bottom wall and the top wall, at least one opening in the side wall through which the internal space is in communication with an external space; and
an adjustment cover configured to cover at least a part of the at least one opening to fill a fire extinguishing agent supplied into the module housing to a predetermined height,
wherein a top edge of the adjustment cover is lower than a top edge of the at least one opening.