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研究论文

巴基管嵌锂电极性能的研究

  • 吴国涛
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  • 浙江大学物理学系

收稿日期: 1998-08-28

  修回日期: 1998-08-28

  网络出版日期: 1998-08-28

Lithiun Insertion in Carbon Nanotubes

  • Wu guotao  Wang chunsheng Qi zhongfu Li wenzhu
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  • (Department of Physics, Zhejiang University,Hangzhou 310027

Received date: 1998-08-28

  Revised date: 1998-08-28

  Online published: 1998-08-28

摘要

用化学气相沉积(CVD)法制备的巴基管作为锂离子电池的负极活性物质可以达到700mAh/g的容量,远超过了石墨嵌锂化合物理论容量(372mAh/g).CVD巴基管电极经20次充放电循环后,放电容量保持率为65.3%.尽管CVD巴基管电极初次充放电效率低(42.6%),但经表面镀铜修饰后,初次充放电效率可提高到55.9%.

本文引用格式

吴国涛 . 巴基管嵌锂电极性能的研究[J]. 电化学, 1998 , 4(3) : 313 -317 . DOI: 10.61558/2993-074X.2704

Abstract

Carbon nanotubes were produced by chemical vapour deposition(CVD) of acetylene under hydrogen gas.The reversible specific capacity of carbon nanotubes is up to 700 mAh/g, much higher than the theoretical specific capacity of graphite(372 mAh/g).After twenty charge/discharge cycles,the discharge capacity of carbon nanotube anode still maintains 65.3% of its original discharge capacity . Besides, the charge/discharge efficiency of carbon nanotube in the first charge/discharge cycle was found to improve from 42.6% up to 55.9% by coating carbon nanotubes with copper.

参考文献

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