Electrochemical Capacitors Based on Exfoliated Graphite Electrodes

Abstract
Exfoliated graphite (EG) is proposed as an electrode material for solid-state electrochemical capacitors. The EG-based capacitors assembled with a solid electrolyte of polyethylene oxide-ethylene carbonate-propylene carbonate- show high specific capacitance in the range of The capacitors also show excellent cyclability. The response time is very short and is of the order of milliseconds. © 2004 The Electrochemical Society. All rights reserved.