摘要
介绍一种氧化钌/活性炭复合电极材料的制备方法,并对不同条件下制备的材料的循环伏安特性、交流阻抗特性进行了比较。使用该复合材料组装的模拟电化学超电容器单电极比容量达到359 F/g,远高于普通活性炭材料。与氧化钌电极材料相比,氧化钌/活性炭复合材料的高功率放电特性则有明显的提高。
Ruthium oxide coated active carbon (RuO2/C) was synthesized as a new electrode material for aqueous-electrolyte super capacitor. This material prepared in different conditions was characterized using cyclic voltammetry and AC impedance method. Small laboratory-scale proto type capacitor were fabricated with RuO2/actived carbon electrode material and tested for their electrochemical performance in term of capacitance and energy-power performance. These laboratory cells exhibited satisfactory performance under constant current discharge delivering 250 F/g at 160?03A/cm2 current density level based on single electrode material only.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2002年第3期1-3,6,共4页
Electronic Components And Materials
基金
国家自然科学基金资助项目(编号:59807001)
关键词
电化学电容器
活性炭
氧化钌
法拉第
电容
电极材料
electrochemical capacitor
active carbon
ruthenium oxide
pseudo-capacitance
