To provide a method by which an activated carbon material used for a polarizable electrode material, etc., can be manufactured.
An activated carbon material is prepared in such a way that a paper sheet containing 10-90 wt.% cellulosic fibers and carbon powder prepared by pulverizing a composition composed of a thermosetting resin into particles having an average particle diameter of 1-20 μm after the resin is baked for carbonization is impregnated with the thermosetting resin by 25-60 wt.% expressed in terms of the solid content of the resin, and, after the sheet is baked for carbonizing the resin, the carbonized resin is activated. When an electrode for capacitor using this activated carbon material is used, a high- capacitance electric double later capacitor can be obtained. Since the material contains the fibers as a raw material, the sheet can be made by using the papermaking method and can be handled easily. In addition, since the productivity and strength of the carbon material can be improved and it is not required to use expensive activated carbon in the papermaking stage, the carbon material can be manufactured at a low cost.
INADA TATSUYA
KAMIJO YUICHI
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