Title:
HIGH-FIRST-CYCLE-EFFICIENCY MULTIPLE-COATING SILICON-BASED COMPOSITE MATERIAL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/121125
Kind Code:
A1
Abstract:
The present disclosure relates to the field of silicon-based materials, and in particular to a method for preparing a high-first-cycle-efficiency multiple-coating silicon-based composite material, comprising the following steps: (1) mixing nano-silicon, a dispersing agent, a metal powder and a binder in an organic solvent for uniform dispersion to obtain precursor A; (2) treating precursor A at high temperature to obtain precursor B; (3) pickling, filtering and drying precursor B to obtain precursor C; and (4) carbon-coating precursor C to obtain the high-first-cycle-efficiency multiple-coating silicon-based composite material. The present disclosure provides a high-first-cycle-efficiency multiple-coating silicon-based composite material, a preparation method therefor and an application method thereof. The process is simple, the product performance is stable, and the application prospect is good.
Inventors:
ZHENG ANHUA (CN)
YU DEXIN (CN)
YANG YONGJUN (CN)
YU DEXIN (CN)
YANG YONGJUN (CN)
Application Number:
PCT/CN2021/078849
Publication Date:
June 16, 2022
Filing Date:
March 03, 2021
Export Citation:
Assignee:
GUANGDONG KAIJIN NEW ENERGY TECH CO LTD (CN)
International Classes:
H01M4/36
Foreign References:
| CN111438364A | 2020-07-24 | |||
| CN107735888A | 2018-02-23 | |||
| CN106159229A | 2016-11-23 | |||
| CN107887587A | 2018-04-06 | |||
| CN105409035A | 2016-03-16 |
Attorney, Agent or Firm:
DONGGUAN HENGCHENG IP AGENCY CO., LTD (CN)
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