Title:
ISOLATING MEMBRANE OF ELECTROCHEMICAL DEVICE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/232904
Kind Code:
A1
Abstract:
Disclosed in the present invention is an isolating membrane of an electrochemical device, comprising a modified porous base membrane and a functional layer arranged on the surface of at least one side of the modified porous base membrane. The functional layer contains slurry of organic matter and inorganic matter compounds, and the modified porous base membrane contains particles of a lithium-containing conductive ion compound. According to the present invention, the lithium-containing conductive ion compound is prepared by adopting a sol-gel-hydrothermal method, and small-particle-size particles of the lithium-containing conductive ion compound are embedded into the isolating membrane base membrane, so that the defects of poor ionic conductivity and poor wettability of an existing isolating membrane are overcome, and moreover, the isolating membrane has good adhesion and heat resistance due to the coated functional layer.
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Inventors:
CHENG YUE (CN)
CHEN YONGLE (CN)
SHI XINYU (CN)
HU JUN (CN)
YU SHAOBO (CN)
CHEN YONGLE (CN)
SHI XINYU (CN)
HU JUN (CN)
YU SHAOBO (CN)
Application Number:
PCT/CN2021/080286
Publication Date:
November 25, 2021
Filing Date:
March 11, 2021
Export Citation:
Assignee:
SHANGHAI ENERGY NEW MAT TECH CO LTD (CN)
International Classes:
H01M50/409; H01M10/0525; H01M50/451
Foreign References:
| CN1331843A | 2002-01-16 | |||
| CN108878733A | 2018-11-23 | |||
| CN109638202A | 2019-04-16 | |||
| CN104638215A | 2015-05-20 | |||
| CN111653712A | 2020-09-11 |
Attorney, Agent or Firm:
SHANGHAI YUANTONG LAW FIRM (CN)
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