Title:
ANODE ACTIVE MATERIAL COMPRISING SILICON COMPOSITE FORMED BY NETWORK OF CONDUCTIVE FIBERS, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/080066
Kind Code:
A1
Abstract:
The present invention provides a high-capacity anode active material which comprises: a primary silicon composite formed by dispersion of nanosilicon particles in a first amorphous carbon matrix; and a secondary silicon composite formed by assembly of the primary silicon composite by a network of conductive fibers in a secondary amorphous carbon matrix, such that contact between the nanosilicon particles and an electrolyte solution is blocked, thus having superior conductivity, and provides a lithium secondary battery including the anode active material and thus having superior lifespan characteristics, output characteristics and safety.
Inventors:
KIM HUIJIN (KR)
Application Number:
PCT/KR2019/014403
Publication Date:
April 29, 2021
Filing Date:
October 29, 2019
Export Citation:
Assignee:
GRAPSIL CO LTD (KR)
International Classes:
H01M4/36; C01B32/05; C01B33/02; H01M4/38; H01M4/587; H01M4/62; H01M10/052
Foreign References:
| KR20150063620A | 2015-06-10 | |||
| JP6183361B2 | 2017-08-23 | |||
| JP2012169259A | 2012-09-06 | |||
| KR20180036456A | 2018-04-09 | |||
| KR101927414B1 | 2018-12-10 |
Attorney, Agent or Firm:
LEE, Joon Sung (KR)
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