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.
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