Abstract
In this paper, the method to find the optimal preparation condition of porous carbon material for capacitor electrode with considering carbon yield was proposed. Biomass (woodchips) and a strong cation exchange resin were used as carbon precursors. Porous carbon materials were prepared by carbonization in N2 stream and by CO2 activation. A new method was proposed for selection of promising process parameters, such as carbonization/activation temperature and period, by measuring specific surface area and capacitance of the carbon materials. The specific capacitances of the carbon prepared from both raw materials were almost the same. However, the cation exchange resin was favorable as a precursor for capacitor electrode in the viewpoint of carbon yield. The optimal preparation condition also was discussed in detail.
