新型非对称电化学电容器的电极匹配研究  

The Matching Study of Electrodes in C/Ni(OH)_2 Hybrid Capacitor

作　　者：苏岳锋[1] 吴锋[1] 

机构地区：[1]北京理工大学化工与环境学院

出　　处：《电化学》2004年第2期190-196,共7页Journal of Electrochemistry

基　　金：国家重点基础研究发展计划 (2 0 0 2CB2 1 1 80 0 );国家科技部基础研究重大项目前期研究专项 (2 0 0 1CCA0 50 0 0 )资助

摘　　要：　活性炭负极容量的有效利用率是导致双电层电化学电容器和C/Ni(OH)2非对称电化学电容器容量性质差异的主要因素,并可将其作为非对称电化学电容器容量设计和测算的依据;本文引入Ni(OH)2正极有效活性物质概念,以正极有效活性物质的量匹配负极的设计容量,从而优化正、负极的容量匹配,改善非对称电化学电容器的容量和大电流性能.The energy storage mechanisms of electrochemical double-layer capacitor (EDLC) and C/Ni(OH)_2 hybrid capacitor had been studied. The results proved that,the difference between the capacity of EDLC and C/Ni(OH)_2 hybrid capacitor was detemined by the effectiveness usage of the activated carbon negative electrode, which is a criterion to estimate or design the theoretic capacity of the C/Ni(OH)_2 hybrid capacitor.The electrochemical availability of activated matter in Ni(OH)_2 electrode was introduced,and the quantity of the activated matter in Ni(OH)_2 electrode should be compatible with the capacity of carbon electrode .When the capacities of Ni(OH)_2 electrode and activated carbon electrode were matched well,the capacity and high rate performance of the hybrid capacitor would be improved.

关 键 词：电化学电容器 电极匹配 活性炭负极 双电层电容器 非对称电容器 

分 类 号：TM53[电气工程—电器]