Influence of carbon nanotube structure on the electrochemical properties of PVA-derived carbon coated Si/carbon nanotube composites
文献类型:期刊论文
作者 | Y. Zhang ; C. Liu ; F. Li ; H. M. Cheng |
刊名 | New Carbon Materials
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出版日期 | 2006 |
卷号 | 21期号:4页码:307-314 |
关键词 | Li-ion battery silicon carbon nanotubes carbonization lithium-ion batteries field-emission properties hydrogen-arc-discharge anode material secondary batteries morphology si intercalation raman |
ISSN号 | 1007-8827 |
中文摘要 | Silicon/carbon nanotube/polyvinyl alcohol (PVA)-derived carbon composites were prepared by carbonization of PVA, and the differences of single-walled carbon nanotubes (SWCNTs), double-walled carbon nanotubes (DWCNTs) and multi-walled carbon nanotubes (MWCNTs) as resilient conductive networks to buffer the volume change of the silicon were investigated. Due to the much higher aspect ratio, SWCNTs and DWCNTs provide a better wrapping effect than do MWCNTs to buffer the volume change of silicon. SWCNTs and DWCNTs have similar diameter, aspect ratio and aggregation form. However, DWCNTs exhibit better structure stability than SWCNTs during electrochemical cycling, and consequently contribute a higher degree of resiliency to buffer the volume change of the silicon. |
原文出处 | |
公开日期 | 2012-04-14 |
源URL | [http://ir.imr.ac.cn/handle/321006/34720] ![]() |
专题 | 金属研究所_中国科学院金属研究所 |
推荐引用方式 GB/T 7714 | Y. Zhang,C. Liu,F. Li,et al. Influence of carbon nanotube structure on the electrochemical properties of PVA-derived carbon coated Si/carbon nanotube composites[J]. New Carbon Materials,2006,21(4):307-314. |
APA | Y. Zhang,C. Liu,F. Li,&H. M. Cheng.(2006).Influence of carbon nanotube structure on the electrochemical properties of PVA-derived carbon coated Si/carbon nanotube composites.New Carbon Materials,21(4),307-314. |
MLA | Y. Zhang,et al."Influence of carbon nanotube structure on the electrochemical properties of PVA-derived carbon coated Si/carbon nanotube composites".New Carbon Materials 21.4(2006):307-314. |
入库方式: OAI收割
来源:金属研究所
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