| 초록 |
Extensive researches to develop high-performance supercapacitors as power supply devices for the hybrid electric vehicles that have been proposed as an appropriate transportation system to solve energy and environmental problems, have been actively performed. As to nanoporous carbons traditionally used as electrode materials of commercial supercapacitors, designing ion accessible pore size and maximizing the ion accessible surface area could be considered as the most crucial factors to obtain high energy density supercapacitor. Recently, single-wall nanocarbons have been actively studied as hopeful electrode materials for the supercapacitors owing to their nanoporous nature and relatively high electrical conductivity. Unlike the nanoporous carbon electrodes, ion storage ability of single-wall nanocarbons should be governed by ion accessible nanoscale-holes on single-graphene wall, enabling the efficient utilization of the intratube spaces for ion storage. In this presentation, we will discuss capacitance behaviors of various carbon materials for supercapacitor electrodes. |
