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研究论文

离子液体对硫-超导炭黑复合材料电化学性能的影响

  • 张波 ,
  • 陈思婷 ,
  • 高学平
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  • 南开大学新能源材料化学研究所;

收稿日期: 2010-02-28

  修回日期: 2010-02-28

  网络出版日期: 2010-02-28

Performance of Sulfur-Super Conductive Carbon Black Composite in Electrolyte Mixed with Room Temperature Ionic Liquid

  • ZHANG Bo ,
  • CHEN Si-ting ,
  • GAO Xue-ping
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  • (Institute of New Energy Material Chemistry,Nankai University,Tianjin 300071,China

Received date: 2010-02-28

  Revised date: 2010-02-28

  Online published: 2010-02-28

摘要

以热处理方法由单质硫与超导炭黑制备硫含量为59%的硫-超导炭黑复合材料.X射线衍射、扫描电镜测试表明,单质硫均匀地分散在高比表面积的超导炭黑中.如于电解液中添加室温离子液体,则可有效减弱复合材料中多硫化物在电解液的穿梭效应,提高硫复合材料的电化学性能.充放电测试表明,该硫-超导炭黑复合材料在含有离子液体的电解液中循环50周后,容量仍保持483.6mAh/g.

本文引用格式

张波 , 陈思婷 , 高学平 . 离子液体对硫-超导炭黑复合材料电化学性能的影响[J]. 电化学, 2010 , 16(1) : 35 -38 . DOI: 10.61558/2993-074X.2033

Abstract

The sulfur-super conductive carbon black composite was prepared as cathode material of lithium/sulfur battery.The composite was characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),and electrochemical impedance spectroscopy(EIS).The sulfur composite shows a high discharge capacity and a good cycle performance in electrolyte mixed with 50% of room temperature ionic liquid.In particular,the discharge capacity of the composite was stabilized at 483.6 mAh/g after 50 cycles.
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