US 12,266,762 B2
Electrolyte additive for lithium secondary battery, electrolyte for lithium secondary battery including the same, and lithium secondary battery
Olga Tsay, Yongin-si (KR); Hyejin Park, Yongin-si (KR); Myungheui Woo, Yongin-si (KR); Hyunbong Choi, Yongin-si (KR); and Pavel Shatunov, Yongin-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Appl. No. 17/627,102
Filed by Samsung SDI Co., Ltd., Yongin-si (KR)
PCT Filed Jul. 8, 2020, PCT No. PCT/KR2020/008916
§ 371(c)(1), (2) Date Jan. 13, 2022,
PCT Pub. No. WO2021/010650, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 10-2019-0085824 (KR), filed on Jul. 16, 2019.
Prior Publication US 2022/0263131 A1, Aug. 18, 2022
Int. Cl. H01M 4/00 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); 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) [H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0025 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electrolyte additive for lithium secondary battery, comprising: a compound represented by Formula 1 below:

OG Complex Work Unit Chemistry
wherein, R1 to R3 in Formula 1 are each independently a hydrogen atom, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C2-C30 alkoxyalkyl group, a substituted or unsubstituted C4-C30 carbon ring, 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 heteroarylal group, and
wherein at least one of R1, R2, or R3 is a different substituent other than a methyl group.