Silicon Oxide for Anode of Secondary Battery, Method for Preparing the Same and Anode of Secondary Battery Using the Same
AssigneeYeil Electronics Co., Ltd.
InventorYun-Kyu Kang
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Abstract
Provided is a silicon oxide for an anode of a secondary battery, having a good mechanical lifespan and electrical properties, and a method for preparing the same and an anode of a secondary battery using the silicon oxide. According to the method, a mixture is prepared by mixing SiCl4 and ethylene glycol, a gel is manufactured by stirring the mixture, and the gel is heat treated to prepare silicon oxide for an anode of a secondary battery.
Claims10
A method for preparing silicon oxide for an anode of a secondary battery comprising:
- preparing a mixture by mixing SiCl4 and ethylene glycol at 10:90 to 70:30 by volume;
- manufacturing a gel by stirring the mixture at 50° C. to 300° C. for 2 to 72 hours;
- and
- heat treating the gel at 500° C. to 1,000° C.
Silicon oxide for an anode of a secondary battery anode, having a particle size of 50 to 150 nm.
An anode of a secondary battery comprising a SiOx-C complex phase in which carbon particles surround a surface of silicon oxide having a particle size of 50 to 150 nm.
Dependencies are inferred from the claim text.