US 12,218,309 B2
Electrolyte additive for lithium secondary battery, electrolyte for lithium secondary battery including the same, and lithium secondary battery including electrolyte
Jinhyeok Lim, Yongin-si (KR); Pavel Shatunov, Yongin-si (KR); Olga Tsay, Yongin-si (KR); Younghye Kang, Yongin-si (KR); Aeran Kim, Yongin-si (KR); Hyejin Park, Yongin-si (KR); Myungheui Woo, Yongin-si (KR); Duckjae You, Yongin-si (KR); Taejin Lee, Yongin-si (KR); Harim Lee, Yongin-si (KR); Wonseok Cho, Yongin-si (KR); and Hyunbong Choi, Yongin-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Appl. No. 17/630,120
Filed by Samsung SDI Co., Ltd., Yongin-si (KR)
PCT Filed Jul. 28, 2020, PCT No. PCT/KR2020/009938
§ 371(c)(1), (2) Date Jan. 25, 2022,
PCT Pub. No. WO2021/020864, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 10-2019-0093356 (KR), filed on Jul. 31, 2019.
Prior Publication US 2022/0263132 A1, Aug. 18, 2022
Int. Cl. H01M 10/0567 (2010.01); H01M 4/02 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0567 (2013.01) [H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0025 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electrolyte for a lithium secondary battery, comprising:
a lithium salt;
a non-aqueous organic solvent; and
an electrolyte additive comprising a compound represented by Formula 1:

OG Complex Work Unit Chemistry
wherein, in Formula 1, R1 to R3 are each independently hydrogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C4-C30 carbocyclic group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, or a substituted or unsubstituted C2-C30 heteroaryl group, and
R4 to R6 are each independently a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C4-C30 carbocyclic group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, or a substituted or unsubstituted C2-C30 heteroaryl group.