Title:
SILICON-BASED LITHIUM STORAGE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/245651
Kind Code:
A1
Abstract:
A silicon-based lithium storage material and a preparation method therefor. The preparation method comprises: providing a porous base core comprising a carbon element and an oxygen element; forming elemental silicon and amorphous silicon-nitrogen compounds in the pores of the porous base core by using a nitrogen source gas and a silicon source gas by means of a plasma chemical vapor deposition process; and forming a carbon coating layer on the surface of the porous base core. The silicon-based lithium storage material not only has a high capacity, but also can achieve fast charging performance and cycle performance; in addition, the preparation method for the silicon-based lithium storage material is simple and can be directly used for large-scale production.
Inventors:
MA FEI (CN)
WEI LIANGQIN (CN)
GAO MIN (CN)
ZHANG XIUYUN (CN)
LI FENGFENG (CN)
WEI LIANGQIN (CN)
GAO MIN (CN)
ZHANG XIUYUN (CN)
LI FENGFENG (CN)
Application Number:
PCT/CN2022/101241
Publication Date:
December 28, 2023
Filing Date:
June 24, 2022
Export Citation:
Assignee:
SHANGHAI SHANSHAN TECH CO LTD (CN)
International Classes:
H01M4/38; C23C16/34; H01M4/62
Domestic Patent References:
| WO2019112107A1 | 2019-06-13 | |||
| WO2022029423A1 | 2022-02-10 |
Foreign References:
| CN113169308A | 2021-07-23 | |||
| CN110571426A | 2019-12-13 |
Attorney, Agent or Firm:
BEIJING YIFA LAW FIRM (CN)
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