Title:
NONAQUEOUS ELECTROLYTIC SOLUTION FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/015072
Kind Code:
A1
Abstract:
The present invention relates to a nonaqueous electrolytic solution for a lithium secondary battery, and a lithium secondary battery comprising same, and, specifically, to: a nonaqueous electrolytic solution for a lithium secondary battery, and a lithium secondary battery comprising same, the solution comprising a lithium salt, an organic solvent comprising a carbonate compound and a propionate compound, and an additive, wherein the carbonate compound and the propionate compound are included in a volume ratio of 10:90 to 40:60, and the additive comprises 1,4-dicyano-2-butene and 1,3,5-cyclohexanetricarbonitrile in a weight ratio of 1:1.5 to 1:3.7.
Inventors:
YEOM CHUL EUN (KR)
LIM YOUNG MIN (KR)
LEE JUNG MIN (KR)
LEE CHUL HAENG (KR)
LIM YOUNG MIN (KR)
LEE JUNG MIN (KR)
LEE CHUL HAENG (KR)
Application Number:
PCT/KR2021/009091
Publication Date:
January 20, 2022
Filing Date:
July 15, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/0567; H01M4/505; H01M4/525; H01M10/052; H01M10/0569
Domestic Patent References:
| WO2012074300A2 | 2012-06-07 |
Foreign References:
| JP2017228426A | 2017-12-28 | |||
| KR20190054920A | 2019-05-22 | |||
| US20060035144A1 | 2006-02-16 | |||
| KR20170139341A | 2017-12-19 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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