【作者】 姜训勇； 张磊； 孙立伟； 刘庆锁； 陆翠敏；

【Author】 JIANG Xun-yong,ZHANG Lei,SUN Li-wei,LIU Qing-suo,LU Cui-min (Department of Materials and Science,Tianjin University of Technology,Tianjin 300384,China)

【机构】 天津理工大学材料科学与工程学院；

【摘要】 以多壁碳纳米管为电极材料制备了超级电容器。实验结果表明,碳纳米管预处理对电容器的容量影响最大,其次是电解液类型。碳纳米管涂覆方法对电容的储电性能影响最小。在实验中,最佳电容器的实验条件是:碳纳米管需经预处理,采用电泳法涂覆电极材料,电解液为中性的2mol/L KCl溶液。对于不同充放电速度,碳纳米管电容器的储电容量相近。采用电泳法制备碳纳米管电极可以大大降低电容器的内阻。与涂覆碳纳米管的方法相比,采用电泳法的电容的内阻可以降低600倍。更多还原

【Abstract】 In this paper,supercapacitor was prepared with multi-walled carbon nanotube.The results of experiment show that the influence of pretreatment method of CNTs on the capacitance of supercapacitor is most obvious. Next is type of electrolytic solution.The coating method has the smallest influnece on capacitance of supercapacitor. The best experiment condition to get highest capacitance in this experimenti is:CNTs is pretreated. CNTs is coated on the substrate by electrophoresis.Electrolytic solution is 2M KCl.The capacitance of CNTs capacitor is similar for different charging speed.Electrophoresis method can greatly reduce the inner resistance of capacitor.The inner resistance of capacitor prepared by electrophoresis decreased 600 times compared with capacitor prepared by genernal binding method.更多还原