ACTIVATED CARBON FOR ELECTRIC DOUBLE-LAYER CAPACITOR

摘要

PROBLEM TO BE SOLVED: To provide activated carbon enabling an electric double-layer capacitor to output a high power both at a normal temperature and at a low temperature and to have excellent charge and discharge properties even in a case a large current is applied. SOLUTION: Coal is carbonized into activated carbon having a BET specific surface area of 1350 m2/g to 2000 m2/g and an average pore diameter of 2.2 nm (22Å) to 2.5 nm (25Å).