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凝胶聚合物电解质MnO2/AC电容器的研究
引用本文:于立娟,张宝宏,杨萍,黄震雷,殷金玲.凝胶聚合物电解质MnO2/AC电容器的研究[J].应用科技,2007,34(1):61-65.
作者姓名:于立娟  张宝宏  杨萍  黄震雷  殷金玲
作者单位:哈尔滨工程大学,材料科学与化学工程学院,黑龙江,哈尔滨,150001
基金项目:哈尔滨工程大学校科研和教改项目
摘    要:采用液相氧化法制备了MnO2超级电容器电极材料,以MnO2为正极材料,活性炭(AC)为负极材料,丙烯腈作聚合物单体,碳酸二甲酯(DMC)与碳酸乙烯酯(EC)的混和液作增塑剂,高氯酸锂为支持电解质,采用内聚合法制备PAN基凝胶聚合物电解质MnO2/AC混合电容器.通过循环伏安、交流阻抗、恒流充放电等测试方法对混合电容器的电化学性能进行了测试.结果表明:混合电容器的工作电压为2.5 V,比容量为27.3 F/g(i=0.5 mA/cm2),比同电解质体系的AC/AC电容器提高约48.21%.

关 键 词:二氧化锰  混合电容器  凝胶聚合物电解质  聚丙烯腈
文章编号:1009-671X(2007)01-0061-05
收稿时间:2006-06-23
修稿时间:2006-06-23

Research on MnO2/AC capacitor with gel polymer electrolytes
YU Li-juan,ZHANG Bao-hong,YANG Ping,HUANG Zhen-lei,YIN Jin-ling.Research on MnO2/AC capacitor with gel polymer electrolytes[J].Applied Science and Technology,2007,34(1):61-65.
Authors:YU Li-juan  ZHANG Bao-hong  YANG Ping  HUANG Zhen-lei  YIN Jin-ling
Institution:College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
Abstract:MnO_2 was synthesized by liquid oxo-process method,and Polyacrylonitrile(PAN) based gel polymer electrolytes MnO_2/AC hybrid capacitors were fabricated by an insitu polymerizational method with MnO_2 as positive electrode and activated carbon as negative electrode.A mixture of dimethyl carbonate(DMC) and ethylene carbonate(EC) was used as a plasticizer.Lithium perchlorate were used as supporting electrolytes.Hybrid capacitor properties were determined by experiments of cyclic voltammetry,impedance spectrum,constant current charge/discharge,showing that the working voltage of hybrid capacitor reaches to 2.5 V.The specific capacitance of the supercapacitor is 27.3 F/g(i=0.5 mA/cm~2) and is 48.21% higher than that of AC/AC capacitor with the same electrolyte.
Keywords:MnO_2  hybrid capacitor  gel polymer electrolytes  PAN
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