US 12,341,198 B2
Binder composition of secondary battery and lithium secondary battery including the same
Jeong A Kim, Daejeon (KR); and Byoung Ho Ko, Daejeon (KR)
Assigned to SK On Co., Ltd., Seoul (KR)
Filed by SK ON CO., LTD., Seoul (KR)
Filed on Apr. 20, 2022, as Appl. No. 17/725,035.
Claims priority of application No. 10-2021-0051571 (KR), filed on Apr. 21, 2021.
Prior Publication US 2022/0359880 A1, Nov. 10, 2022
Int. Cl. H01M 4/62 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/623 (2013.01) [H01M 10/0525 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A binder composition for a secondary battery, comprising:
an elastic resin that comprises a hard segment containing at least one of a urethane unit or a urea unit, and a soft segment containing a polyether unit; and
a fluorine-based hydrocarbon resin,
wherein a weight ratio of the fluorine-based hydrocarbon resin relative to the elastic resin is in a range from 1.0 to 1.5.