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Volume 10 Issue 1
Feb.  2003
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Cuiwei Du, Yujuan Zhao, Zhongbao Yu, Yinshun Wu,  and Qingguo Liu, Influence of particle structure on electrochemical character of composite graphite, J. Univ. Sci. Technol. Beijing, 10(2003), No. 1, pp. 61-64.
Cite this article as:
Cuiwei Du, Yujuan Zhao, Zhongbao Yu, Yinshun Wu,  and Qingguo Liu, Influence of particle structure on electrochemical character of composite graphite, J. Univ. Sci. Technol. Beijing, 10(2003), No. 1, pp. 61-64.
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Materials

Influence of particle structure on electrochemical character of composite graphite

  • 通讯作者:

    Cuiwei Du    E-mail: ducuiwei@sina.com

  • The natural graphite has been used as the anode material for Lithium-Ion batteries, because of its low cost, chemical stability and excellent reversibility for Li+ insertion. However, the slow diffusion rate of lithium ion and poor compatibility with electrolyte solutions make it difficult to use in some conditions. In order to solve these problems, an epoxy-coke/graphite composite has been manufactured. The particle of composite carbonaceous material coated on non-graphitizable (hard) carbon matrix. Due to the disordered structure, the diffusion rate of lithium species in the non-graphitzable carbon is remarkably fast and less anisotropic. The process for preparing a composite carbon powder provides a promising new anode material with superior electrochemical properties for Li-ion batteries. The unique structure of epoxy-coke/graphite composite electrodes results in much better kinetics, also better recharge ability and initial charge/discharge efficiency.
  • Materials

    Influence of particle structure on electrochemical character of composite graphite

    + Author Affiliations
    • The natural graphite has been used as the anode material for Lithium-Ion batteries, because of its low cost, chemical stability and excellent reversibility for Li+ insertion. However, the slow diffusion rate of lithium ion and poor compatibility with electrolyte solutions make it difficult to use in some conditions. In order to solve these problems, an epoxy-coke/graphite composite has been manufactured. The particle of composite carbonaceous material coated on non-graphitizable (hard) carbon matrix. Due to the disordered structure, the diffusion rate of lithium species in the non-graphitzable carbon is remarkably fast and less anisotropic. The process for preparing a composite carbon powder provides a promising new anode material with superior electrochemical properties for Li-ion batteries. The unique structure of epoxy-coke/graphite composite electrodes results in much better kinetics, also better recharge ability and initial charge/discharge efficiency.
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