Non-aqueous electrolyte and lithium secondary battery including the same
AssigneeLG Energy Solution, Ltd.
InventorsJung Min Lee, Jung Gu Han, Su Hyeon Ji, Chul Eun Yeom, Chul Haeng Lee, Kyung Mi Lee
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Abstract
The present disclosure relates to a non-aqueous electrolyte including an organic solvent, a lithium salt, and a coumarin-based compound represented by the following Chemical Formula 1 and a lithium secondary battery including the non-aqueous electrolyte: in Chemical Formula 1, R is a substituent including one or more elements selected from the group consisting of C, O, N, B, S, P, Si, and F, and n is an integer of 1 to 6.
Claims14
A non-aqueous electrolyte comprising an organic solvent, a lithium salt, and a coumarin-based compound represented by Chemical Formula 1:
- in Chemical Formula 1,
- R is an alkynyl group having 2 to 10 carbon atoms, a propargyl group, COOR′, O—R″, or COR″′, wherein R′ is a propargyl group, R″ is a propargyl group or a silyl group substituted with at least one alkyl group having 1 to 5 carbon atoms, wherein Si in the silyl group is attached to O in the O—R″, and R″′ is an alkyl group having 1 to 5 carbon atoms substituted with at least one halogen, and
- n is an integer of 1 to 6.
Dependencies are inferred from the claim text.