高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 311.

• Chemistry in Materials Sciences • 上一篇    下一篇

The Diffusion Coefficient of Lithium Ions into Highly Oriented Pyrolytic Graphite

NULI Yan-Na, WAN Chuan-Yun, JIANG Zhi-Yu   

  1. Department of Chemistry, Fudan University, Shanghai 200433
  • 出版日期:2000-12-31 发布日期:2000-12-31

The Diffusion Coefficient of Lithium Ions into Highly Oriented Pyrolytic Graphite

NULI Yan-Na, WAN Chuan-Yun, JIANG Zhi-Yu   

  1. Department of Chemistry, Fudan University, Shanghai 200433
  • Online:2000-12-31 Published:2000-12-31

摘要:

The diffusion coefficient of lithium in graphite is an important parameter for the use of graphite because it relates to the ability of charge and discharge rate of lithium battery. It remains a problem that there are often obvious differences among the diffusion coefficients obtained using different methods, even in one paper[1,2]. This difference may attribute to the complicate properties of intercalation process, as well as some uncertain parameters of the porous structure electrode. In order to measure the diffusion coefficient of lithium in carbon more precisely, a well crystallized material Highly Oriented Pyrolytic Graphite (HOPG) was used as the material of working electrode in this study.

Abstract:

The diffusion coefficient of lithium in graphite is an important parameter for the use of graphite because it relates to the ability of charge and discharge rate of lithium battery. It remains a problem that there are often obvious differences among the diffusion coefficients obtained using different methods, even in one paper[1,2]. This difference may attribute to the complicate properties of intercalation process, as well as some uncertain parameters of the porous structure electrode. In order to measure the diffusion coefficient of lithium in carbon more precisely, a well crystallized material Highly Oriented Pyrolytic Graphite (HOPG) was used as the material of working electrode in this study.

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