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1. (WO2017039368) METHOD OF MANUFACTURING NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THROUGH LIQUID PHASE SYNTHESIS METHOD

Pub. No.:    WO/2017/039368    International Application No.:    PCT/KR2016/009819
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: H01M 4/36
H01M 4/38
H01M 4/62
Applicants: IKSUNG CO., LTD.
주식회사 익성
Inventors: YANG, Kee Wook
양기욱
CHA, Jong Hyuk
차종혁
KANG, Gue Suk
강규석
LEE, Gwang Seok
이광석
CHOE, Hyeon Hu
최현후
KIM, Chang Hyeon
김창현
KIM, Dong Hyun
김동현
Title: METHOD OF MANUFACTURING NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THROUGH LIQUID PHASE SYNTHESIS METHOD
Abstract:
The present invention relates to a method of manufacturing a negative electrode material for a lithium secondary battery. According to a preferred embodiment of the present invention, a negative electrode material for a lithium secondary battery may be comprised of: a core portion formed of porous silicon (Si); a silicon metal oxide (SiOx) surrounding the core portion; and a carbon layer (C) surrounding the silicon metal oxide. Also, the present invention provides a method of manufacturing a negative electrode material for a lithium secondary battery, the method comprising the steps of: mixing a silane-based material and an amine-based material, and manufacturing a porous silicon-metal oxide compound; and heat-treating the porous silicon-metal oxide compound at 400°C to 1,600°C under an atmosphere of oxygen, hydrogen, nitrogen, argon, or a gas mixture thereof. A negative electrode material for a secondary battery manufactured according to the present invention has high capacity and high stability, and can be used as a negative electrode material for a lithium secondary battery.