Preparation and Electrochemical Properties of Silicon/Carbon Composite Electrodes
Authors:
Open Access
- 1 January 2005
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 8 (9) , A481-A483
Abstract
Silicon/carbon composites were prepared at room temperature by dehydration of a mixture of sucrose and silicon powders using concentrated , and the electrochemical behavior of this kind of material as an anode for lithium secondary batteries was investigated. The composites demonstrated a high initial coulombic efficiency of 82% and a large charge capacity above over 75 cycles. The improved electrochemical characteristics are attributed to the uniform distribution of silicon particles in an amorphous carbon matrix, which, to a certain extent, could buffer the volume change during cycling.Keywords
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