Si/C nanocomposite anode materials by freeze-drying with enhanced electrochemical performance in lithium-ion batteries

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 宁波所知识产出

	Si/C nanocomposite anode materials by freeze-drying with enhanced electrochemical performance in lithium-ion batteries
	Xu XX(许晓雄) ; Xing Xin & Xiayin Yao & Yiming Zhang & Zhaoping Liu & Xiaoxiong Xu
刊名	J. Solid State Electrochem.
	2012-03-03
卷号	166 期号:16 页码:2733—2738
通讯作者	许晓雄
合作状况	李雨桐
中文摘要	The nanostructured Si/graphite composites embedded with the pyrolyzed polyethylene glycol was synthesized from coarse silicon and natural graphite by a facile and cost-effective approach. The Si/C nanocomposite showed the fluffy carbon-coated structure, which was confirmed by the SEM and TEM measurements. The as-obtained Si/C nanocomposite, employed as anode material in lithium-ion batteries, exhibited significantly enhanced rate capability and cycling stability. The improved electrochemical stability of the composite was evaluated by EIS and galvanostatically charge/discharge test. A reversible capacities as high as 85% and 91% of the initial charge capacities, could be maintained for the Si/C nanocomposite electrode after 40 cycles under the high current densities of 500 and 1,000 mA g？1, respectively. The relatively low cost and excellent electrochemical capability of the Si/C nanocomposite would well meet the challenge in rapid charge and discharge for large-size lithium-ion rechargeable batteries.
学科主题	物理化学
原文出处	SCI收录
公开日期	2013-12-16
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/9568]
专题	宁波材料技术与工程研究所_宁波所知识产出
推荐引用方式 GB/T 7714	Xu XX,Xing Xin & Xiayin Yao & Yiming Zhang & Zhaoping Liu & Xiaoxiong Xu. Si/C nanocomposite anode materials by freeze-drying with enhanced electrochemical performance in lithium-ion batteries[J]. J. Solid State Electrochem.,2012,166(16):2733—2738.
APA	Xu XX,&Xing Xin & Xiayin Yao & Yiming Zhang & Zhaoping Liu & Xiaoxiong Xu.(2012).Si/C nanocomposite anode materials by freeze-drying with enhanced electrochemical performance in lithium-ion batteries.J. Solid State Electrochem.,166(16),2733—2738.
MLA	Xu XX,et al."Si/C nanocomposite anode materials by freeze-drying with enhanced electrochemical performance in lithium-ion batteries".J. Solid State Electrochem. 166.16(2012):2733—2738.