The properties of electric double layer capacitor of Cu-carbon composite prepared from sawdust

A Cu-porous carbon composite prepared from sawdust was applied to the elect rode of the electric double-layer capacitor (EDLC). The Cu-carbon composite s were characterized and the properties of the electrode of EDLC were inves tigated. The carbonaceous material prepared from the sawdust and impregnate d with Cu(NO3)(2) showed higher capacitance than the commercial activated c arbon. The capacitance was dependent on the Cu-content in the composite. Th e highest capacitance was obtained when Cu-content was 0.086 Cu-g/g.