US 12,015,120 B2
Additive, electrolyte for rechargeable lithium battery, and rechargeable lithium battery
Hyunbong Choi, Yongin-si (KR); 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); Pavel Shatunov, Yongin-si (KR); and Jungmin Han, Yongin-si (KR)
Assigned to SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed on Jul. 13, 2020, as Appl. No. 16/927,116.
Claims priority of application No. 10-2019-0087161 (KR), filed on Jul. 18, 2019; and application No. 10-2020-0018300 (KR), filed on Feb. 14, 2020.
Prior Publication US 2021/0020989 A1, Jan. 21, 2021
Int. Cl. H01M 10/0567 (2010.01); H01M 4/02 (2006.01); H01M 4/38 (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 10/0569 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 4/382 (2013.01); H01M 2300/0025 (2013.01); H01M 2300/0028 (2013.01); Y02E 60/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electrolyte for a rechargeable lithium battery, the electrolyte comprising:
a non-aqueous organic solvent,
a lithium salt, and
an additive represented by Chemical Formula 1:

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 1,
X1 and X2 are each independently O, S, CRaRb, or NRc, at least one of X1 and X2 being O or S,
R1 is 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 C3 to C10 cycloalkyl group, a substituted or unsubstituted C3 to C10 cycloalkenyl group, or a substituted or unsubstituted C6 to C20 aryl group,
Ra, Rb, Rc, and R2 to R5 are each independently hydrogen, a substituted or unsubstituted C1 to C5 alkyl group, a substituted or unsubstituted C2 to C5 alkenyl group, or a combination thereof, and
n is an integer selected from 1 to 3.