HIGHLY DEVELOPED POROUS CARBON FROM AMPHIPHILIC CARBONACEOUS MATERIAL UNDER LOW KOH RATIO AND ITS APPLICATION FOR EDLCS

摘要

Electric double-layer capacitors (EDLCs) have been recognized as one of the efficient storage devices for electric power because of their good rate capability and long cycle life. Up to date, carbon electrode materials are still considered as the most promising materials for future capacitors with superior performances due to their low price and stable physicochemical properties [1,2]. In the present study, amphiphilic carbon material (ACM) was firstly synthesized by oxidization of coal tar pitch. Then ACM-based activated carbon samples (AACs) with high surface area and notable mesopore proportion were designed under different KOH ratio. Both the AAC-1.5 and AAC-3 samples were used as electrode materials for supercapacitor in aqueous and organic systems. As expected, the obtained samples exhibit attractive properties for EDLCs.