US 11,990,588 B2
Battery cell including short-circuit inducing member and safety evaluation method using same
Seo Young Yoon, Daejeon (KR); and Tae Jong Kim, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/276,333
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Mar. 26, 2020, PCT No. PCT/KR2020/004087
§ 371(c)(1), (2) Date Mar. 15, 2021,
PCT Pub. No. WO2020/209529, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. 10-2019-0041138 (KR), filed on Apr. 9, 2019.
Prior Publication US 2022/0045373 A1, Feb. 10, 2022
Int. Cl. H01M 10/42 (2006.01); H01M 10/0585 (2010.01); H01M 50/105 (2021.01); H01M 50/46 (2021.01); H01M 50/489 (2021.01)
CPC H01M 10/4235 (2013.01) [H01M 10/0585 (2013.01); H01M 10/4285 (2013.01); H01M 50/105 (2021.01); H01M 50/46 (2021.01); H01M 50/489 (2021.01)] 11 Claims
OG exemplary drawing
 
1. A battery cell comprising:
a positive electrode;
a negative electrode;
a separator disposed between the positive electrode and the negative electrode and having at least one perforated portion; and
a short circuit induction member disposed on the perforated portion,
wherein the short circuit induction member includes a cover unit covering the perforated portion; and
one or more magnetic units disposed on a side surface of the cover unit.