Paper-based solid-state supercapacitors with pencil-drawing graphite/polyaniline networks hybrid electrodes

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• 作者：Bin Yao ; Longyan Yuan ; Xu Xiao ; Jing Zhang ; Yanyuan Qi ; Jing Zhou ; Jun Zhou ; Bin Hu ; Wen Chen
• 关键词：Paper ; Pencil-drawing ; Graphite ; Polyaniline ; Hybrid electrode ; Solid-state supercapacitor
• 刊名：Nano Energy
• 出版年：November, 2013
• 年：2013
• 卷：2
• 期：6
• 页码：1071-1078
• 全文大小：2899 K

文摘

A simple and low-cost method involving pencil-drawing and electrodeposition is introduced to fabricate graphite/polyaniline hybrid electrodes on paper for flexible solid-state supercapacitors. The as-prepared hybrid electrodes, which are chemically stable, show a low sheet resistance of 32.3 惟 sq^鈭? and a high areal capacitance of 355.6 mF cm^鈭? at a current density of 0.5 mA cm^鈭?. The paper-based symmetric supercapacitors assembled by two pencil-drawing graphite/polyaniline networks hybrid electrodes exhibit a volume capacitance of 3.55 F cm^鈭? at a current density of 4.57 mA cm^鈭?, and an energy density of about 0.32 mWh cm^鈭? at a power density of 0.054 W cm^鈭? normalized to the whole volume of the solid-state device. These encouraging results show their great potential in flexible and solid-state energy storage systems.