US 12,294,055 B2
Electrolyte solution for lithium secondary battery and lithium secondary battery comprising same
Younghye Kang, Yongin-si (KR); Dongyoung Kim, Yongin-si (KR); Soojin Kim, Yongin-si (KR); Aeran Kim, Yongin-si (KR); Suyeol Ryu, Yongin-si (KR); Jeongmin Shin, Yongin-si (KR); Junyong Lee, Yongin-si (KR); Tae Jin Lee, Yongin-si (KR); Jin-Hyeok Lim, Yongin-si (KR); Myunghwan Jeong, Yongin-si (KR); Wonseok Cho, Yongin-si (KR); Hyunbong Choi, Yongin-si (KR); and Jungmin Han, Yongin-si (KR)
Assigned to SAMSUNG SDI CO., LTD., Yongin-si (KR)
Appl. No. 17/762,816
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
PCT Filed Sep. 9, 2020, PCT No. PCT/KR2020/012152
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2021/071109, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 10-2019-0124017 (KR), filed on Oct. 7, 2019.
Prior Publication US 2022/0344715 A1, Oct. 27, 2022
Int. Cl. H01M 10/0567 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0567 (2013.01) [H01M 10/0569 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electrolyte solution for a lithium secondary battery, the electrolyte solution comprising:
a non-aqueous organic solvent,
a lithium salt, and
an additive,
wherein the additive includes a compound represented by Chemical Formula 1:

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 1,
R1 is an unsubstituted C1 to C10 alkyl group and
R2 to R4 are each independently hydrogen, a halogen, a substituted or unsubstituted C1 to C5 alkyl group, a substituted or unsubstituted C2 to C5 alkenyl group, or a combination thereof.