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›› 2011, Vol. 11 ›› Issue (5): 869-874.

• 材料工程专栏 • 上一篇    下一篇

Preparation of Sn-Si-C Composite as Li-ion Battery Anode Material by High Energy Ball Milling and Its Properties

李艳红 刘源 邱新平   

  1. 清华大学化学系有机光电子与分子工程教育部重点实验室 清华大学化学系有机光电子与分子工程教育部重点实验室 清华大学化学系有机光电子与分子工程教育部重点实验室
  • 收稿日期:2011-07-29 修回日期:2011-10-08 出版日期:2011-10-20 发布日期:2011-10-20
  • 通讯作者: 李艳红

Preparation of Sn-Si-C Composite as Li-ion Battery Anode Material by High Energy Ball Milling and Its Properties

LI Yan-hong LIU Yuan QIU Xin-ping   

  1. Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University
  • Received:2011-07-29 Revised:2011-10-08 Online:2011-10-20 Published:2011-10-20
  • Contact: LI Yan-hong

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关键词: Li-ion battery, anode, charging-discharging, electrochemical characterization

Abstract: Electrochemically active Sn-Si-C composite was synthesized by high energy ball milling (HEBM) in Ar atmosphere. The so-obtained composite was characterized by X-ray diffraction and field emission scanning electron microscopy. Lithium insertion/extraction characteristics of the composites were examined by constant current charge-discharge and cyclic voltammetry methods. The results show that there is no new alloy generated by HEBM. The composite synthesized by two-step HEBM resulted in initial lithium insertion specific capacity as high as 1224 mA×h/g and higher reversible lithium extraction specific capacity of 855 mA×h/g.

Key words: Li-ion battery, anode, charging-discharging, electrochemical characterization

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