| 摘要 |
<p>The purpose of the present invention is to provide a capacitor having a high frequency response speed and can be charged/discharged rapidly. The capacitor is provided with a polarizing electrode comprising a carbon material and an electrolytic solution said capacitor being characterized in that the frequency response speed is 0.7 Hz or more as measured using 40 mass% sulfuric acid as the electrolytic solution. In the capacitor porous carbon composed of pores and carbonaceous walls that serve as external walls of the pores is used as the porous carbon material wherein the pores are open air pores and air pore parts in the pores are formed in continuation from each other.</p> |
