ELECTRIC DOUBLE-LAYER CAPACITOR, CARBON MATERIAL FOR IT AND ELECTRODE

摘要

PROBLEM TO BE SOLVED: To provide an electric double-layer capacitor, whose capacitance is large, whose resistance is low and whose reliability is high. SOLUTION: A capacitor is provided with an electrode composed mainly of a carbon material, in which the ratio of the peak intensity of a G-band in an amorphous carbon component to the peak intensity of a G-band in a graphite component in a Raman spectrum is 0.7 or higher and in which the ratio of the peak intensity of a D-band to the peak intensity of the G-band regarding the graphite component is 1.0 or higher.