聚苯胺/碳复合材料在混合型电容器中的应用  

Application of polyaniline/carbon composite material in hybrid supercapacitor

作　　者：黄震雷 丛文博[1] 张宝宏[1] 

机构地区：[1]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

出　　处：《电源技术》2007年第8期605-608,共4页Chinese Journal of Power Sources

基　　金：哈尔滨工程大学基础研究基金(HEUF04066)

摘　　要：采用原位聚合法制备了聚苯胺/活性炭复合材料(PANI/C),复合材料中聚苯胺的质量分数为46.4%。以1mol/L H2SO4溶液为电解液,Nafion117质子交换膜为隔膜,分别采用复合材料电极和活性炭电极为正负极组装了混合型电容器,并用循环伏安、交流阻抗、恒流充放电测试等方法考察了电容的性能。结果表明,该混合型电容器在0～1.35V电势范围内电容性能良好。3.0mA/cm2电流密度下,电容器比容量为83.1F/g,比活性炭电容器提高82%,电容器的比能量可达21.0Wh/kg,是活性炭电容器的3倍以上。1000次充放电循环后,电容器比容量保持在初始比容量的89.1%。Polyaniline/activated carbon composite material was synthesized by in-situ polymerization method. Hybrid capacitor was fabricated by using PANI/C as positive electrode and activated carbon as negative electrode, 1 mol/L H2SO4 solution as electrolyte and Nation 117 as separator.The capacitance performance of the hybrid capacitor was investigated by cyclic voltammetry, electrochemical impedance spectroscopy, galvanostatic charge-discharge. The results show that the capacitor performs well in the potential range of 0-1.35 V. The specific capacitance reached 83.1 F/g at the current density of 3 mNcrn2, increased 82% than activated carbon capacitor. The energy density amounted to 21.0 Wh/kg, three times larger than the activated carbon capacitor.After 1 000 cycles of charge-discharge, the specific capacitance maintained 89.1%, revealed a good cycle life.

关 键 词：超级电容器 聚苯胺 活性炭 比容量 复合 

分 类 号：TM53[电气工程—电器]