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研究论文

聚苯胺掺杂对C-LiFePO_4复合正极材料性能的影响

  • 王伟 ,
  • 焦丽芳 ,
  • 袁华堂
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  • 南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所 天津300071,天津300071,天津300071

收稿日期: 2008-05-28

  修回日期: 2008-05-28

  网络出版日期: 2008-05-28

Electrochemical Performance of C-LiFePO_4 by Polyaniline Doping

  • WANG Wei ,
  • JIAO Li-fang ,
  • YUAN Hua-tang
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  • (Institude of New Energy Material Chemisity,Nankai University,Tianjin 300071,China

Received date: 2008-05-28

  Revised date: 2008-05-28

  Online published: 2008-05-28

摘要

应用固相反应法在惰性气氛下合成橄榄石型LiFePO4,然后制成聚苯胺掺杂C-LiFePO4复合正极材料.XRD,交流阻抗及电化学方法等测试表明,聚苯胺掺杂对LiFePO4电化学性能有一定的改善.当放电倍率为0.1C时,掺杂10%聚苯胺的(C-LiFePO4)0.9(PANI)0.1样品的放电容量达到164 mAh.g-1,且循环稳定性良好.在0.5C和1C的放电倍率下,也可以分别达到121.6 mAh.g-1和110.1 mAh.g-1的放电比容量.

本文引用格式

王伟 , 焦丽芳 , 袁华堂 . 聚苯胺掺杂对C-LiFePO_4复合正极材料性能的影响[J]. 电化学, 2008 , 14(2) : 146 -149 . DOI: 10.61558/2993-074X.1880

Abstract

The olivine LiFePO4 cathode materials were synthesized using the solid state method in an inert atmosphere by doping polyaniline into the C-LiFePO4.It was found that the electrochemical performance of polyaniline-doped C-LiFePO4 slightly improved.At a low discharging rate(0.1C), the capability of(C-LiFePO4)0.9(PANI)0.1 reached 164 mAh·g-1.When the charge-discharge rate is increased to 0.5C and 1.0C,the showed capacities of 121.6 mAh·g-1 and 110.1 mAh·g-1 were obtained,respectively.

参考文献

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