Title:
ANODE ACTIVE MATERIAL, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2017/164538
Kind Code:
A1
Abstract:
The present invention relates to an anode active material, a manufacturing method therefor, and a lithium secondary battery including the same and, particularly, to a composite anode active material, a manufacturing method therefor, and a lithium secondary battery including the same so as to have an improved lifespan, the active material comprising: a core capable of absorbing and discharging lithium ions; and a plurality of coating layers having, on the surface of the core, two or more silicon layers with different densities such that cracks generated by the repetition of charging and discharging can be minimized so as to improve safety.
Inventors:
CHOI JUNG HYUN (KR)
LEE YONG JU (KR)
KIM EUN KYUNG (KR)
LEE YONG JU (KR)
KIM EUN KYUNG (KR)
Application Number:
PCT/KR2017/002396
Publication Date:
September 28, 2017
Filing Date:
March 06, 2017
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/36; H01M4/133; H01M4/134; H01M4/38; H01M4/587; H01M10/0525
Foreign References:
| KR20160031782A | 2016-03-23 | |||
| JP2016026381A | 2016-02-12 | |||
| KR100878718B1 | 2009-01-14 | |||
| KR100814591B1 | 2008-03-17 | |||
| KR20060069738A | 2006-06-22 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
Download PDF:
Previous Patent: CODE MANAGEMENT SYSTEM FOR OBJECT; AND COMPUTER READABLE RECORDING MEDIUM
Next Patent: COMPRESSOR
Next Patent: COMPRESSOR