3D aperiodic hierarchical porous graphitic carbon material for high-rate electrochemical capacitive energy storage

Abstract

Electrochemical capacitors: A hierarchical porous graphitic carbon material, composed of macroporous ion-buffering microreservoirs, ion-transporting channels, and localized graphitic wall structures, is presented (see images; top: 3D skeleton, bottom: carbon platelet). The properties of this new material combine to overcome the electrode kinetic problems normally found in electrochemical capacitors, thus resulting in an excellent high-rate energy-storage performance. (Figure Presented). © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.