物理化学学报 >> 2002, Vol. 18 >> Issue (08): 750-753.doi: 10.3866/PKU.WHXB20020816

研究简报 上一篇    下一篇

氧化钌/活性炭超电容器复合电极的电化学行为

王晓峰;王大志;梁吉;刘庆国   

  1. 清华大学机械工程系,北京 100084;北京科技大学固体电解质研究室,北京 100083
  • 收稿日期:2001-11-28 修回日期:2002-03-04 发布日期:2002-08-15
  • 通讯作者: 王晓峰 E-mail:electrowang@netease.com

Electrochemical Performance of RuO2/Active Carbon Composite Electrodes

Wang Xiao-Feng;Wang Da-Zhi;Liang Ji;Liu Qing-Guo   

  1. Department of Mechanical Engineering, Tsinghua University, Beijing 100084;Laboratory on Solid Electrolyte, Beijing Science and Technology University, Beijing 100083
  • Received:2001-11-28 Revised:2002-03-04 Published:2002-08-15
  • Contact: Wang Xiao-Feng E-mail:electrowang@netease.com

摘要: 电化学超电容器作为一种新一代储能系统具有广泛的应用领域. 直流充放电、循环伏安以及交流阻抗等实验显示了本文制备的活性碳材料以及复合电极材料具有良好的电化学性能.活性碳材料的质量比容量为172 F•g-1,采用无定形RuO2与上述活性碳复合制成的新型电极材料具有359 F•g-1以上的比容量和良好的功率特性,并对上述材料的双电层电容和法拉第准电容等电化学特性进行了详细的讨论.

关键词: 超电容器, 双电层电容, 活性碳, 准电容, 钌金属氧化物

Abstract: Supercapacitors are playing great roles in research-and-development field of power engineering as a new energy store device. The porous carbon material developed in our laboratory exhibits perfect physical structure and properties. Its good electrochemical performances were confirmed by the experiment of CV and alternating current impedance analysis etc. The specific capacitance of active carbon was 172 F•g-1 at the 20 mA•cm-2 current density discharge. The RuO2/active carbon composite electrode was prepared and the specific capacitance amounts to 359 F•g-1,electrochemical performance of supercapacitor composed of RuO2/active carbon composite electrode and the “pseudo-capacitance” characteristic of ruthenium oxide was discussed in detail in this paper

Key words: Super-capacitor, Double layer capacitor, Active carbon, Pseudo-capacitance, Ruthenium oxide