ELECTRIC DOUBLE LAYER CAPACITOR AND ELECTRODE MATERIAL AND METHOD OF PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an electrode material capable of increasing the specific capacity compared with active carbon and a production method thereof, and to provide a polarizable electrode of good conductivity, and an electric double layer capacitor using that electrode.SOLUTION: In a method of producing an electrode material, a carbon nanoballoon structure is formed by heat treating carbon black at a temperature of 2000°C or more, and it is furthermore activated by alkali activation. An electrode is manufactured of the activated material, and an electric double layer capacitor using it as a polarizable electrode is manufactured.SELECTED DRAWING: Figure 7