US 12,243,983 B2
Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery including the same
Hyun Yeong Lee, Daejeon (KR); Hyun Seung Kim, Daejeon (KR); Chul Haeng Lee, Daejeon (KR); and Young Min Lim, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/771,529
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Nov. 27, 2020, PCT No. PCT/KR2020/017099
§ 371(c)(1), (2) Date Apr. 25, 2022,
PCT Pub. No. WO2021/112501, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10-2019-0160560 (KR), filed on Dec. 5, 2019.
Prior Publication US 2022/0384850 A1, Dec. 1, 2022
Int. Cl. H01M 10/0567 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 10/0567 (2013.01) [H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0037 (2013.01)] 11 Claims
OG exemplary drawing
 
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 to R5 are each independently hydrogen, a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms, or —CN, wherein at least one of R1 to R5 is a —CN group.