SOLID STATE ACTIVATED CARBON AND ITS PRODUCING METHOD AND ELECTRIC DOUBLE-LAYER CAPACITOR USING IT AND ITS PRODUCING METHOD

摘要

PROBLEM TO BE SOLVED: To provide solid state activated carbon which composes a polarizable electrode having a large electrostatic capacity and excellent electric charge and discharge cycle characteristics and an electric double-layer capacitor using it. SOLUTION: The solid state activated carbon which composes the polarizable electrode has the properties as follows. The specific surface area is 500 m2 or more and 2,500 m2 or less. The pore volume of pore 15 having diameter of 1 nm or less measured by an argon adsorption isothermal curve is 0.35-0.70 cc/g. The intensity ratio (ID/IG) of 1,360 cm-1 band (ID) to 1,580 cm-1 band (IG) at Raman spectroscopy is 0.5 or more.