US 12,237,480 B2
Battery cell evaluation method and battery cell evaluation device
Na Yoon Kim, Daejeon (KR); Yong Su Choi, Daejeon (KR); and Hyungkyun Yu, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/914,070
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Oct. 22, 2021, PCT No. PCT/KR2021/014940
§ 371(c)(1), (2) Date Sep. 23, 2022,
PCT Pub. No. WO2022/108142, PCT Pub. Date May 27, 2022.
Claims priority of application No. 10-2020-0157741 (KR), filed on Nov. 23, 2020; and application No. 10-2021-0138338 (KR), filed on Oct. 18, 2021.
Prior Publication US 2023/0155191 A1, May 18, 2023
Int. Cl. H01M 10/48 (2006.01); H01M 10/04 (2006.01); H01M 10/42 (2006.01)
CPC H01M 10/48 (2013.01) [H01M 10/049 (2013.01); H01M 10/4285 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery cell evaluation method comprising:
molding a pouch film to form a receiving part in which an electrode assembly is mounted;
providing an impact to at least one of the corners of the receiving part;
storing the pouch film inside a second container together with a first container configured to contain an electrolytic solution; and
detecting presence or absence of peeling of an outer layer of the pouch film.