RAW MATERIAL CARBON COMPOSITION FOR CARBON MATERIAL FOR ELECTRODE OF ELECTRIC DOUBLE LAYER CAPACITOR

摘要

Disclosed is a raw material carbon composition which can be a carbon material for electrodes of electric double layer capacitors when activated. Such a raw material carbon composition is characterized by having a volatile content of not less than 1.3% by mass and not more than 15% by mass. The raw material carbon composition is further characterized by having a microstrength of 5-30% when the volatile content is less than 6% by mass while having a microstrength of a 5-20% when the volatile content is 6% by mass or more. The capacitance per unit volume of an electric double layer capacitor can be increased by using such a raw material carbon composition.