POLARIZABLE ELECTRODE MATERIAL FOR ELECTRIC DOUBLE LAYER CAPACITOR HAVING IMPROVED WITHSTAND VOLTAGE, AND ELECTRIC DOUBLE LAYER CAPACITOR USING SAME

摘要

The object of the invention is to provide a polarizing electrode material 1 for a high withstand voltage-type electric double layer capacitor with high energy density and also with little time-dependent deterioration in capacitance or resistance, namely having excellent long-term reliability, as well as an electric double layer capacitor using the same. The invention provides a polarizing electrode material used in an electric double layer capacitor, characterized by comprising a porous carbon particle, an electroconductive aid, a tungsten oxide powder, an a binder.