Title:
ANODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM ION SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/131695
Kind Code:
A1
Abstract:
An embodiment of the present invention relates to: an anode material for a lithium ion secondary battery, comprising a silicon-silicon carbide composite; a preparation method therefor; and a lithium ion secondary battery comprising same, and, more specifically, the anode material for a lithium ion secondary battery, according to the embodiment, is an anode material, which comprises a silicon-silicon carbide composite containing silicon particles and silicon carbide particles, wherein the silicon particles and the silicon carbide particles in the silicon-silicon carbide composite are dispersed from each other and the amount of the silicon carbide particles satisfies a specific range, and thus high capacity and excellent cycle characteristics can be implemented while a low volume expansivity is maintained.
Inventors:
LIM JONG CHAN (KR)
LIM HYUN HEE (KR)
LIM HYUN HEE (KR)
Application Number:
PCT/KR2021/018744
Publication Date:
June 23, 2022
Filing Date:
December 10, 2021
Export Citation:
Assignee:
DAEJOO ELECTRONIC MAT CO LTD (KR)
International Classes:
H01M4/36; C01B32/956; C01B33/021; H01M4/02; H01M4/38; H01M4/58; H01M4/583; H01M4/62; H01M10/052
Domestic Patent References:
| WO2020232129A1 | 2020-11-19 |
Foreign References:
| CN110255532A | 2019-09-20 | |||
| KR20200100252A | 2020-08-26 | |||
| KR20190066596A | 2019-06-13 | |||
| KR20190065182A | 2019-06-11 |
Attorney, Agent or Firm:
FIRSTLAW P.C. (KR)
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