US 11,923,508 B2
Electrolyte solution for lithium secondary battery and lithium secondary battery including the same
Ki Sung Park, Daejeon (KR); and Myoung Lae Kim, Daejeon (KR)
Assigned to SK On Co., Ltd., Seoul (KR); and SK Innovation Co., Ltd., Seoul (KR)
Filed by SK On Co., Ltd., Seoul (KR); and SK Innovation Co., Ltd., Seoul (KR)
Filed on Jul. 10, 2023, as Appl. No. 18/349,264.
Claims priority of application No. 10-2022-0085429 (KR), filed on Jul. 12, 2022.
Prior Publication US 2024/0021877 A1, Jan. 18, 2024
Int. Cl. H01M 10/0567 (2010.01); C07D 491/044 (2006.01); C07F 9/6571 (2006.01); H01M 10/052 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0567 (2013.01) [C07D 491/044 (2013.01); C07F 9/657163 (2013.01); H01M 10/052 (2013.01); H01M 10/0569 (2013.01); H01M 2300/004 (2013.01)] 11 Claims
 
1. An electrolyte solution for a lithium secondary battery, comprising:
an additive comprising a compound represented by Chemical Formula 1;
an organic solvent; and
a lithium salt:

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 1, R is hydrogen or a substituted or unsubstituted C1-C5 alkyl group, X is N or P, and n and n′ are each independently an integer of 1 to 5.