Electrochemical performance of RuO2/active carbon, composite electrodes

Supercipacitors are playing great roles in research-and-development field of power engineering as a new energy store device. The porous carbon material developed in our laboratory exhibits perfect physical structure and properties. Its good electrochemical performances were-confirmed by the experiment of CV and alrternating current impedance analysis etc. The specific capacitance of active carbon Was 172 F (.) g(-1) at the 20 mA (.) cm(-2) current density discharge. The, RuO2/active carbon composite electrode was prepared and the specific capacitance amounts to 359 F (.) g(-1), electrochemical performance of supercapacitor composed, of RuO2/active carbon composite electrode and the "pseudo-capacitance'' characteristic of ruthenium oxide was discussed in detail in this paper.