US 11,929,500 B2
Electrode assembly
Ji Hyun Choi, Daejeon (KR); and Han Young Lee, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/048,917
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jan. 6, 2020, PCT No. PCT/KR2020/000164
§ 371(c)(1), (2) Date Oct. 19, 2020,
PCT Pub. No. WO2020/171375, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 10-2019-0020424 (KR), filed on Feb. 21, 2019.
Prior Publication US 2021/0159497 A1, May 27, 2021
Int. Cl. H01M 4/525 (2010.01); H01M 4/02 (2006.01); H01M 4/131 (2010.01); H01M 4/505 (2010.01)
CPC H01M 4/525 (2013.01) [H01M 4/131 (2013.01); H01M 4/505 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electrode assembly, the electrode assembly comprising:
a plurality of positive electrodes, a plurality of negative electrodes and a plurality of separators repeatedly stacked,
wherein one of the plurality of separators is a shrinkage film made of a material shrinking at greater than a predetermined temperature,
wherein the shrinkage film is disposed between a first positive electrode of the plurality of positive electrodes and a first negative electrode of the plurality of negative electrodes so that, when the shrinkage film is shrunk by an increase of a temperature, the first positive electrode and the first negative electrode contact each other to generate a microcurrent, and
wherein the first positive electrode has a positive current collector with a positive electrode active material facing the shrinkage film.