US 12,191,468 B2
Battery module, and battery pack and power storage device including same
Hun Cha, Daejeon (KR); Jong-Seung Na, Daejeon (KR); and Sang-Jun Park, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/620,037
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Jul. 2, 2020, PCT No. PCT/KR2020/008694
§ 371(c)(1), (2) Date Dec. 16, 2021,
PCT Pub. No. WO2021/002712, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 10-2019-0080194 (KR), filed on Jul. 3, 2019.
Prior Publication US 2022/0263161 A1, Aug. 18, 2022
Int. Cl. H01M 10/6568 (2014.01); H01M 10/613 (2014.01); H01M 10/653 (2014.01); H01M 50/224 (2021.01); H01M 50/273 (2021.01)
CPC H01M 10/6568 (2015.04) [H01M 10/613 (2015.04); H01M 10/653 (2015.04); H01M 50/224 (2021.01); H01M 50/273 (2021.01); H01M 2200/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A battery module, comprising:
a plurality of battery cells assemblies, each battery cells assembly of the plurality of battery cells assemblies having a plurality of battery cells stacked on each other; and
at least one cooler provided between the plurality of battery cells assemblies and filled with a coolant therein, the at least one cooler having a main case having at least one membrane hole and a cover case having a membrane filter covering the at least one membrane hole to seal the at least one membrane hole to be opened or closed according to a change of an internal pressure of the cooler.