US 12,255,287 B2
Electrolyte additive for secondary battery, preparation method therefor, and electrolyte composition and secondary battery, which comprise additive
Byung Won Woo, Ulsan (KR); Soon Hong Park, Busan (KR); Jae Woo Jung, Yangsan-si (KR); Ji Eun Kim, Gyeongsangbuk-do (KR); and Sang Moon Lee, Ulsan (KR)
Assigned to FOOSUNG CO., LTD., (KR)
Appl. No. 17/613,038
Filed by FOOSUNG CO., LTD., Hwaseong-si (KR)
PCT Filed May 22, 2020, PCT No. PCT/KR2020/006715
§ 371(c)(1), (2) Date Nov. 19, 2021,
PCT Pub. No. WO2020/235968, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 10-2019-0060548 (KR), filed on May 23, 2019.
Prior Publication US 2022/0223912 A1, Jul. 14, 2022
Int. Cl. H01M 10/0567 (2010.01); C07F 9/6574 (2006.01); H01M 10/0525 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0567 (2013.01) [C07F 9/65742 (2013.01); C07F 9/65748 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0025 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An electrolyte additive represented by Chemical Formula 2 below:

OG Complex Work Unit Chemistry
wherein M is alkali metal, and
R is hydrogen, a substituted or unsubstituted C1 to C5 alkyl group, a substituted or unsubstituted C1 to C5 perfluoroalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C6 to C30 perfluoroaryl group, or CF3.