氧化改性Ni(OH)_2的电化学电容特性研究  

Study on Capacitive Characteristics of Electrochemical Capacitors with Oxidated Ni(OH)_2 Eletrodes

作　　者：李兵红[1] 梁逵[1] 庄凯[1] 胡军[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039

出　　处：《电子元件与材料》2006年第2期8-10,共3页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(50307009);西华大学人才基金资助项目(0321143)

摘　　要：为获得高比电容量电极材料,制备出氧化改性Ni(OH)2,并对样品进行了XRD和XPS分析,通过恒流充放电测试分析了氧化改性Ni(OH)2/活性炭非对称型电化学电容器的电容特性,讨论了活性炭与氧化改性Ni(OH)2质量比对比电容量的影响。结果表明,氧化改性Ni(OH)2电容器性能稳定,稳定工作电压可达1.60V;在活性炭与氧化改性Ni(OH)2质量比约为2.7时,比电容量高达93.78F/g。For proparation of high specific capacitance electrode materials, oxidated Ni（OH）2 powders were synthesized. Samples were analyzed by XRD and XPS. Asymmetric capacitors were fabricated with oxidated Ni（OH）2 and activated carbon（AC） as positive and negative electrodes respectively. The capacitance was measured through galvanostatic charge/discharge measurements. The effects of the mass ratio of AC and oxidated Ni（OH）2 on the specific capacitance were discussed. The results show that asymmetric capacitors are exhibited excellent stability and the working voltage could be up to 1.60 V. Moreover, the specific capacitance of the electrodes is 93.78 Fig when the mass ratio of AC and oxidated Ni（OH）2 is around 2.7.

关 键 词：电子技术 电化学电容器 氧化改性Ni(OH)2 非对称 稳定性 

分 类 号：TM53[电气工程—电器]