化学学报 ›› 1996, Vol. 54 ›› Issue (11): 1065-1069. 上一篇    下一篇

研究论文

锂在碳素材料中的扩散过程研究

邱新平;沈万慈;刘英杰;陈南平;刘庆国   

  1. 清华大学材料系;北京科技大学固体电解质研究室
  • 发布日期:1996-11-15

Investigations on the diffusion of lithium in carbon materials

QIU XINPING;SHEN WANCI;LIU YINGJIE;CHEN NANPING;LIU QINGGUO   

  • Published:1996-11-15

本文利用间歇电量滴定法(GITT)研究了锂在苯碳黑和树脂裂解碳等碳素材料中嵌入时的扩散过程, 结果表明, 锂在不同碳素材料的石墨微晶区中的扩散过程基本相似, 扩散系数在10^-^9cm^2/s数量级, 而在碳素材料的非石墨化区中的扩散则与碳素材料的结构有很大关系。

关键词: 锂, 扩散过程, 嵌入, 碳素材料

The galvanostatic intermittent titration technique (GITT) was employed to investigate the diffusion processes of lithium in carbon materials. The results showed that the diffusion coefficients of lithium in the graphite region of carbon materials are all similar, while in the non-graphitic region they vary with the structure of the carbon materials.

Key words: LITHIUM, DIFFUSION PROCESSES, EMBEDDING COLLISIONS

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