US 12,355,032 B2
Alkynated and methyl sulfonated imidazoline non-aqueous electrolyte additive and nonaqueous electrolyte solution for lithium secondary battery including the same and lithium secondary battery
Yoo Sun Kang, Daejeon (KR); Chul Haeng Lee, Daejeon (KR); Jung Hoon Lee, Daejeon (KR); Sol Ji Park, Daejeon (KR); and Jae Won Lee, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 18/837,735
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Mar. 7, 2023, PCT No. PCT/KR2023/003126
§ 371(c)(1), (2) Date Aug. 12, 2024,
PCT Pub. No. WO2023/172044, PCT Pub. Date Sep. 14, 2023.
Claims priority of application No. 10-2022-0029662 (KR), filed on Mar. 8, 2022; and application No. 10-2023-0028790 (KR), filed on Mar. 3, 2023.
Prior Publication US 2025/0112273 A1, Apr. 3, 2025
Int. Cl. H01M 10/0567 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 10/0567 (2013.01) [H01M 10/0525 (2013.01); H01M 2300/0025 (2013.01)] 10 Claims
 
1. An electrolyte solution additive for a secondary battery, comprising a compound represented by Formula 1:

OG Complex Work Unit Chemistry
wherein in Formula 1,
R1 and R2 are each independently an alkylene group having 1 to 5 carbon atoms,
R3 is an alkyl group having 1 to 5 carbon atoms,
L is a direct bond, —O—, —COO—, —RO—, or —R′COO—,
R and R′ are each independently an alkylene group having 1 to 10 carbon atoms, and
n is an integer from 1 to 10.