Title:
METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ANODE ACTIVE MATERIAL, MANUFACTURED BY SAME METHOD, FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING ANODE ACTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/125711
Kind Code:
A3
Abstract:
The present invention relates to a method for manufacturing an anode active material for a lithium secondary battery, an anode active material, manufactured by the method, for a lithium secondary battery, and a lithium secondary battery comprising the anode active material. The method for manufacturing an anode active material for a lithium secondary battery comprises the steps of: coating an anode active material precursor containing Si with a crude tar or a soft pitch; and thermally treating the coated product thus obtained, wherein the crude tar contains 20 wt% or less of low-molecular weight components which can be removed by a distillation process.
Inventors:
KIM YONG JUNG (KR)
CHO MOONKYU (KR)
YOU SEUNG JAE (KR)
WOO JUNG GYU (KR)
CHO MOONKYU (KR)
YOU SEUNG JAE (KR)
WOO JUNG GYU (KR)
Application Number:
PCT/KR2020/018192
Publication Date:
August 05, 2021
Filing Date:
December 11, 2020
Export Citation:
Assignee:
POSCO (KR)
RES INST IND SCIENCE & TECH (KR)
RES INST IND SCIENCE & TECH (KR)
International Classes:
H01M4/36; C01B32/05; C01B32/21; C01B33/021; H01M4/38; H01M4/48; H01M4/587; H01M4/62; H01M10/052
Foreign References:
| KR20110080367A | 2011-07-13 | |||
| KR20160113981A | 2016-10-04 | |||
| KR20160137518A | 2016-11-30 | |||
| KR20180075106A | 2018-07-04 | |||
| KR20160057634A | 2016-05-24 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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