摘要
用Sol-Gel法制备RuO2·xH2O,并进一步制备了RuO2·xH2O/活性碳复合电极. 针对超级电容器单元工作电压低的问题,研制了一种混合型超级电容器.该电容器是由金属钽阳极、Ta2O5阳极电介质、38wt%的硫酸电解质溶液和RuO2·xH2O/AC阴极组成.组装的超级电容器样品的参数为50V、2.1mF,储能密度为1.48J/cm3.实验结果表明,该电容器具有较高的储能密度和良好的阻抗特性,可以满足脉冲功率技术的要求.
RuO2·xH2O/AC composite electrode, an ideal electrode of super-capacitors, was prepared. For super-capacitors used usually having lower working voltage of super-capacitors, a newly hybrid super-capacitor was developed. The capacitor was composed of a tantalum metal anode, Ta2O5 dielectric, 38wt% H2SO4 electrolyte solution and RuO2·xH2O /AC cathode. Test results show that the parameters of the hybrid super-capacitor are 50V, 2.1mF, the storage energy density is 1.48J/cm3, showing that it has the high storage energy density and good impedance performance and can be used in pulse power systems.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第3期745-749,共5页
Journal of Inorganic Materials
关键词
超级电容器
二氧化钌
比电容
阻抗特性
super-capacitor
RuO2·xH2O
specific capacitance
impedance performance
