Title:
COMPOSITION FOR ELECTROLYTE OF LITHIUM SECONDARY BATTERY, GEL POLYMER ELECTROLYTE, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/139545
Kind Code:
A1
Abstract:
The present invention relates to a composition for an electrolyte of a lithium secondary battery, a gel polymer electrolyte comprising a polymerization product thereof, and a lithium secondary battery comprising same, the composition comprising: lithium salt; a first polyalkylene carbonate-based polymer having a weight average molecular weight of 1,000 g/mol to 1,500,000 g/mol; an additive including a second polyethylene oxide-based polymer having a weight average molecular weight of 200 g/mol to 2,000 g/mol; and an organic solvent, wherein the weight average molecular weight of the second polymer is 1/300 to 1/3 of the weight average molecular weight of the first polymer, and the content of the first polymer is 0.1% to 30% by weight on the basis of the total weight of the composition.
Inventors:
SHIN WON KYUNG (KR)
LEE CHUL HAENG (KR)
AHN KYOUNG HO (KR)
KIM MIN JUNG (KR)
LEE WON TAE (KR)
JI SU HYEON (KR)
LEE CHUL HAENG (KR)
AHN KYOUNG HO (KR)
KIM MIN JUNG (KR)
LEE WON TAE (KR)
JI SU HYEON (KR)
Application Number:
PCT/KR2021/019826
Publication Date:
June 30, 2022
Filing Date:
December 24, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/0565; H01M10/052; H01M10/0567
Foreign References:
| KR20200020169A | 2020-02-26 | |||
| KR20200052241A | 2020-05-14 | |||
| KR20170044136A | 2017-04-24 | |||
| JP6481120B2 | 2019-03-13 | |||
| US20130075666A1 | 2013-03-28 | |||
| KR20200183055A | 2020-12-24 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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