Praparation Optimization and Performance of Carbon Electrode Materials for Supercapacitor

With the selection of mesopitch pitch after carbonization process as precursor and KOH as activated agent,the activated carbon electrode material was fabricated for supercapacitor.The influence of activated temperature and KOH/C ratio on the pore structure and electrochemical property of porous activated carbon were investigated.The reasons caused the changes of pore structure and electrochemical performance of activated carbon prepared at different condition were also discussed.The results indicate that the maximum specific capacitance of 103.2F/g of carbon electrode materials prepared in the condion of 800℃ and 4∶1 KOH/C ratio can be obtained in 1mol/L(C2H5)4NBF4/PC,the pore structure and the specific capacitance of activated carbon depend on the treatment conditions;the mesopore contents have great influence on the specific capacitance of activated cabon electrode.