POROUS CARBON MATERIAL FOR ELECTRIC DOUBLE LAYER CAPACITOR, AND PRODUCTION METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a porous carbon material which is suitable as an electric double layer capacitor electrode material capable of exhibiting high capacitance.

SOLUTION: The porous carbon material for an electric double layer capacitor is obtained by adding a mixture of raw material pitch and an organic amine solvent to an acid aqueous solution to separate precipitated pitch grains, and thereafter subjecting the pitch grains to infusiblization treatment, carbonization treatment and activation treatment. In the raw material pitch, the thickness Lc (002) of crystallites in a c axis direction obtained by X-ray diffraction is ≥5.0 nm.

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