Title:
POLYMER ELECTROLYTE, AND LITHIUM ION BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/129583
Kind Code:
A1
Abstract:
A polymer electrolyte, and a lithium ion battery comprising same. A preparation method for the polymer electrolyte comprises: (1) dissolving a functional polymer in an organic solvent, and obtaining a system A after uniform mixing, the mass ratio of the functional polymer in the system A being 0.2%-30%; (2) uniformly mixing the system A, a lithium salt, and a functional additive to obtain a mixture; and (3) carrying out in-situ polymerization on the mixture to obtain the polymer electrolyte. The polymer electrolyte has good affinity with anions of the lithium salt, has high conductivity, and greatly improves performance of the semi-solid state battery. The semi-solid state battery prepared is based on an existing lithium ion battery processing technology, has good processing performance and electrochemical performance, and has a certain application prospect.
Inventors:
TANG WEICHAO (CN)
LI SULI (CN)
ZHAO WEI (CN)
YUAN HAO (CN)
LI JUNYI (CN)
XU YANMING (CN)
LI SULI (CN)
ZHAO WEI (CN)
YUAN HAO (CN)
LI JUNYI (CN)
XU YANMING (CN)
Application Number:
PCT/CN2020/138141
Publication Date:
July 01, 2021
Filing Date:
December 21, 2020
Export Citation:
Assignee:
ZHUHAI COSMX BATTERY CO LTD (CN)
International Classes:
C08F265/04; C08F212/14; C08F230/06; C08F257/02
Foreign References:
| CN109037770A | 2018-12-18 | |||
| CN111138596A | 2020-05-12 | |||
| CN109575187A | 2019-04-05 | |||
| CN110048156A | 2019-07-23 | |||
| JPH11329064A | 1999-11-30 | |||
| CN201710386736A | 2017-05-26 | |||
| CN201811419047A | 2018-11-26 |
Other References:
See also references of EP 4083091A4
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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