东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2004, Vol. 25 ›› Issue (3): 258-260.DOI: -

• 论著 • 上一篇    下一篇

锂离子电池纳米碳负极材料的结构与嵌锂行为

张爱黎;符岩;翟秀静;翟玉春   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2004-03-15 发布日期:2013-06-24
  • 通讯作者: Zhang, A.-L.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50174016)

Structure and Li-embedding behavior of lithium cells reusing carbon nanopowder as cathode material

Zhang, Ai-Li (1); Fu, Yan (1); Zhai, Xiu-Jing (1); Zhai, Yu-Chun (1)   

  1. (1) Sch. of Mat. and Metallurgy, Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2004-03-15 Published:2013-06-24
  • Contact: Zhang, A.-L.
  • About author:-
  • Supported by:
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摘要： 采用了一种工业副产品的纳米碳粉作为锂离子电池的负极材料,对纳米碳粉进行了提纯,测定了纳米碳粉的纯度,并对提纯后的纳米碳粉进行了电化学嵌锂性能的研究·充放电实验结果表明,该碳材料首次放电比容量为358 3mA·h/g,首次循环可逆容量为336 4mA·h/g,循环9次后可逆容量保持率为76 1%·TEM观察纳米碳粉的形貌,表明纳米碳粉为球形,直径在30nm左右;XRD测定纳米碳粉的结构,纳米碳粉的d002值介于石墨和软碳材料的d002值之间,为0 3481nm·

关键词: 锂离子电池, 纳米碳粉, 负极材料, 结构, 充放电性能

Abstract: An industrially by-product carbon nanopowder was reused as the raw material to make cathodes of lithium cell for the purpose of reducing cost and improving performance. After the purification of the carbon nanopowder, its purify was measured with an electrochemical investigation done for the lithium embedding behavior. The results of charge/discharge test showed that for the nanopowder the discharging specific capacity was 358.3mA·h/g, the first rechargeable capacity was 336.4 mA ·h/g and 76.1% of rechargeable capacity could be held on after the 9th recharging actions done. The TEM result showed that the morphology of the nanopowder particles were spherical with a diameter about 30 nm, and the XRD result showed structurally that its interlayer distance, d002 was 0.3481 nm, i.e., between that of graphite and of soft carbon.

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