Title:
PREPARATION AND APPLICATION OF POLYCARBONATE-BASED POLYMER ELECTROLYTE
Document Type and Number:
WIPO Patent Application WO/2020/143259
Kind Code:
A1
Abstract:
Preparation and application of a polycarbonate-based polymer electrolyte, relating to the technical field of lithium-ion batteries. In the present invention, vinyl ethylene carbonate, a conductive lithium salt, a porous support material, and a solvent are used to prepare a polymer electrolyte. The preparation process for the polymer electrolyte is simple and easy to control; the polymer electrolyte has excellent mechanical properties, a thickness of 50-500 μm, an ion conductivity greater than 10-3Scm-1 at room temperature, and an electrochemical window greater than 4.7 V; the polymer electrolyte can effectively inhibit the growth of lithium negative electrode dendrites, and improves compatibility with an interface and long cycle performance; a solid-state lithium-ion battery can work for a long time at room temperature. In addition, the polymer electrolyte has good flexibility and is also suitable for a flexible lithium-ion battery device of a wearable electronic device.
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Inventors:
YU HAIJUN (CN)
LIN ZHIYUAN (CN)
GUO XIANWEI (CN)
LIN ZHIYUAN (CN)
GUO XIANWEI (CN)
Application Number:
PCT/CN2019/110925
Publication Date:
July 16, 2020
Filing Date:
October 14, 2019
Export Citation:
Assignee:
UNIV BEIJING TECHNOLOGY (CN)
International Classes:
H01M10/0565
Foreign References:
| CN109802174A | 2019-05-24 | |||
| CN108878967A | 2018-11-23 | |||
| JPH08283523A | 1996-10-29 | |||
| CN106299471A | 2017-01-04 | |||
| CN108400380A | 2018-08-14 |
Attorney, Agent or Firm:
BEIJING SHTD IP AGENCY LTD. (CN)
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