US 12,243,985 B2
Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery including the same
Hyun Yeong Lee, Daejeon (KR); Chul Haeng Lee, Daejeon (KR); Young Min Lim, Daejeon (KR); Jung Min Lee, Daejeon (KR); Chul Eun Yeom, Daejeon (KR); and Jung Gu Han, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/608,278
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Nov. 13, 2020, PCT No. PCT/KR2020/015946
§ 371(c)(1), (2) Date Nov. 2, 2021,
PCT Pub. No. WO2021/101174, PCT Pub. Date May 27, 2021.
Claims priority of application No. 10-2019-0147431 (KR), filed on Nov. 18, 2019; and application No. 10-2020-0151165 (KR), filed on Nov. 12, 2020.
Prior Publication US 2022/0209299 A1, Jun. 30, 2022
Int. Cl. H01M 10/0568 (2010.01); H01M 4/02 (2006.01); H01M 4/131 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0568 (2013.01) [H01M 4/131 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0025 (2013.01)] 7 Claims
 
1. A non-aqueous electrolyte solution for a lithium secondary battery, the non-aqueous electrolyte solution comprising:
a lithium salt;
an organic solvent; and
a compound represented by Formula 1 as an additive,

OG Complex Work Unit Chemistry
wherein, in Formula 1,
R1 is a —CN group, R2 is hydrogen or an alkyl group having 1 to 3 carbon atoms, and R3 to R6 are each independently hydrogen, an alkyl group having 1 to 3 carbon atoms, or a —CN group.