US 12,009,491 B2
Lithium secondary battery
Sang Han Lee, Daejeon (KR); Yong Hyun Cho, Daejeon (KR); Min Gu Kang, Daejeon (KR); Min Suk Kang, Daejeon (KR); and Yoon Ji Lee, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK INNOVATION CO., LTD., Seoul (KR)
Filed on Sep. 14, 2021, as Appl. No. 17/474,684.
Claims priority of application No. 10-2020-0118222 (KR), filed on Sep. 15, 2020.
Prior Publication US 2022/0085432 A1, Mar. 17, 2022
Int. Cl. H01M 10/52 (2006.01); H01M 4/13 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 10/52 (2013.01) [H01M 4/13 (2013.01); H01M 4/628 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A lithium secondary battery, comprising:
an electrode assembly comprising:
a separation layer; and
a plurality of cathodes and a plurality of anodes separated by the separation layer and repeatedly stacked; and
a gas adsorption layer coated only on a single surface of each of an uppermost anode and a lowermost anode among the plurality of anodes included in the electrode assembly,
wherein each of the plurality of anodes comprises an anode current collector and an anode active material layer, and the gas adsorption layer contacts the anode active material layer.