Title:
NEGATIVE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, NEGATIVE ELECTRODE COMPOSITION, NEGATIVE ELECTRODE COMPRISING SAME FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING NEGATIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2024/049235
Kind Code:
A1
Abstract:
The present invention relates to negative active material, a method for preparing same, a negative electrode composition, a negative electrode comprising same for a lithium secondary battery, and a lithium secondary battery comprising the negative electrode. The negative active material of the present invention is silicon-based active material containing pure Si active material, and unlike conventional pulverization-based production methods, is produced (silane gas) by controlling reaction conditions in a chemical method, and accordingly, silicon-based active material satisfying particular physical properties can be produced. When used, lithium intercalation and deintercalation reactions can be uniform during charging and discharging, and particle breakage can be reduced due to lowered stress to the silicon-based active material.
Inventors:
KIM DOHYEUN (KR)
KIM DONGHYUK (KR)
LEE YONG JU (KR)
JUN HYUNMIN (KR)
KIM DONGHYUK (KR)
LEE YONG JU (KR)
JUN HYUNMIN (KR)
Application Number:
PCT/KR2023/012979
Publication Date:
March 07, 2024
Filing Date:
August 31, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M4/36; C01B33/12; C01B33/18; H01M4/02; H01M4/139; H01M4/38; H01M4/48; H01M4/62
Foreign References:
| KR20090072533A | 2009-07-02 | |||
| JP2004331480A | 2004-11-25 | |||
| KR20190007245A | 2019-01-22 | |||
| KR20150117316A | 2015-10-20 | |||
| KR20180015251A | 2018-02-12 |
Attorney, Agent or Firm:
CHOI, Hee-Kyeong (KR)
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