US 12,034,119 B2
Electrolyte for lithium secondary battery and lithium secondary battery comprising same
Myungheui Woo, Yongin-si (KR); Pavel Shatunov, Yongin-si (KR); Olga Tsay, Yongin-si (KR); Hyejin Park, Yongin-si (KR); Harim Lee, Yongin-si (KR); Jin-Hyeok Lim, 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. 17/260,359
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
PCT Filed Jun. 18, 2019, PCT No. PCT/KR2019/007325
§ 371(c)(1), (2) Date Jan. 14, 2021,
PCT Pub. No. WO2020/032378, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 10-2018-0091924 (KR), filed on Aug. 7, 2018.
Prior Publication US 2021/0296702 A1, Sep. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/13 (2010.01); C07F 7/18 (2006.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 4/02 (2006.01)
CPC H01M 10/0567 (2013.01) [C07F 7/1804 (2013.01); H01M 4/13 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 2004/027 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electrolyte for a lithium secondary battery, comprising
a non-aqueous organic solvent, a lithium salt, and an additive,
wherein the additive comprises a compound represented by Chemical Formula 1 and a negative electrode film forming agent:

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 1,
R1 to R6 are independently hydrogen, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C2 to C10 alkenyl group, a substituted or unsubstituted C2 to C10 alkynyl group, a substituted or unsubstituted C3 to C10 cycloalkyl group, or a substituted or unsubstituted C3 to C10 cycloalkenyl group, and
n is an integer of 1 to 10.