Title:
COMPOSITION FOR GEL POLYMER ELECTROLYTE, AND LITHIUM SECONDARY BATTERY COMPRISING GEL POLYMER ELECTROLYTE FORMED THEREFROM
Document Type and Number:
WIPO Patent Application WO/2020/096343
Kind Code:
A1
Abstract:
The present invention relates to: a composition for a gel polymer electrolyte, comprising a lithium salt, a nonaqueous organic solvent, a polymerization initiator and an oligomer containing a polycarbonate-based repeating unit; a gel polymer electrolyte obtained by polymerizing the composition for a gel polymer electrolyte, thereby having improved mechanical strength and ion transfer ability; and a lithium secondary battery, which comprises same so as to exhibit improved stability during external impact and high-temperature storage.
Inventors:
AHN KYOUNG HO (KR)
LEE JUNG HOON (KR)
SHIN WON KYUNG (KR)
LEE JAE WON (KR)
KIM MIN JUNG (KR)
LEE CHUL HAENG (KR)
LEE JUNG HOON (KR)
SHIN WON KYUNG (KR)
LEE JAE WON (KR)
KIM MIN JUNG (KR)
LEE CHUL HAENG (KR)
Application Number:
PCT/KR2019/014965
Publication Date:
May 14, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/0565; H01M10/052; H01M10/42
Foreign References:
| KR20180026358A | 2018-03-12 | |||
| JP2001297948A | 2001-10-26 | |||
| JP2011154853A | 2011-08-11 | |||
| KR20160040128A | 2016-04-12 | |||
| KR20120000399A | 2012-01-02 | |||
| KR20160077962A | 2016-07-04 |
Other References:
BAO, J. ET AL.: "Polycarbonate-based polyurethane as a polymer electrolyte matrix for all-solid-state lithium batteries", JOURNAL OF POWER SOURCES, vol. 389, 1 June 2018 (2018-06-01), pages 84 - 92, XP055700514, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2018.04.020
ZHANG, Q. ET AL: "Recent advances in solid polymer electrolytes for lithium batteries", NANO RESEARCH, vol. 10, no. 12, 22 August 2017 (2017-08-22), pages 4139 - 4174, XP036437481, ISSN: 1998-0124, DOI: 10.1007/s12274-017-1763-4
DEVAUX, D. ET AL: "Crosslinked perfluoropolyether solid electrolytes for lithium ion transport", SOLID STATE IONICS, vol. 310, 1 November 2017 (2017-11-01), pages 71 - 80, XP085223279, ISSN: 0167-2738, DOI: 10.1016/j.ssi.2017.08.007
ZHANG, Q. ET AL: "Recent advances in solid polymer electrolytes for lithium batteries", NANO RESEARCH, vol. 10, no. 12, 22 August 2017 (2017-08-22), pages 4139 - 4174, XP036437481, ISSN: 1998-0124, DOI: 10.1007/s12274-017-1763-4
DEVAUX, D. ET AL: "Crosslinked perfluoropolyether solid electrolytes for lithium ion transport", SOLID STATE IONICS, vol. 310, 1 November 2017 (2017-11-01), pages 71 - 80, XP085223279, ISSN: 0167-2738, DOI: 10.1016/j.ssi.2017.08.007
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
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