材料科学
复合数
阳极
电化学
复合材料
化学工程
电极
化学
物理化学
工程类
作者
Bonan Liu,Hao Lü,Chao Geng,Fengguang Luo,Zheng Jin,Shimou Chen,Hong Li
出处
期刊:Chinese Physics B
[IOP Publishing]
日期:2018-08-01
卷期号:27 (8): 088201-088201
被引量:9
标识
DOI:10.1088/1674-1056/27/8/088201
摘要
A series of Si/C composites were fabricated based on pitch and Si powders with particle sizes of 30, 100, 500, and 3000 nm. The size effects of the Si particles in the Si/C composites were investigated for lithium-ion battery anodes. The nanoscale Si and Si/C composites exhibited good capacity retentions. Scanning electron microscopy showed that exterior and interior cracks emerging owing to volume expansion as well as parasitic reactions with the electrolyte could well explain the performance failure.
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