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Title:
ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2022/139380
Kind Code:
A1
Abstract:
The present invention relates to a preparation method for an anode active material for a lithium secondary battery, an anode active material prepared thereby, and a lithium secondary battery including same, the method comprising the steps of: preparing artificial graphite; mixing the artificial graphite and a liquid coating material to form a coating layer coating the artificial graphite; and carbonizing the artificial graphite having the coating layer formed thereon, wherein the liquid coating material has a viscosity of 300-25000 mPa·s at 35℃.

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Inventors:
LEE GANG HO (KR)
AN JUNG-CHUL (KR)
PARK SEI MIN (KR)
YOON JONG HOON (KR)
JO HYUN-CHUL (KR)
Application Number:
PCT/KR2021/019432
Publication Date:
June 30, 2022
Filing Date:
December 20, 2021
Export Citation:
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Assignee:
POSCO (KR)
RES INST IND SCIENCE & TECH (KR)
POSCO CHEM CO LTD (KR)
International Classes:
H01M4/36; C01B32/21; H01M4/587; H01M4/62; H01M10/0525
Foreign References:
KR20200136335A2020-12-07
JP2017525083A2017-08-31
KR20200076504A2020-06-29
KR102169929B12020-10-26
KR101626026B12016-05-31
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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