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Electrochemical Capacitors Based On Anion-Graphite Intercalation Compounds, Hong-Yu Wang, Hui Fan, Xiao-Hong Wang, Li Qi

Journal of Electrochemistry

Anions can be electrochemically intercalated into a graphite electrode with a reversible capacity as high as 120 mAh·g^-1 at the high potential near 5 V vs. Li/Li⁺. Besides, graphite is environmentally benign, economic and abundant in China. Therefore, graphite is a very promising positive electrode material for asymmetric capacitors using non-aqueous electrolytes. However, the performance of graphite positive electrode is quite sensitive to various affecting factors, such as the compositions of electrolyte solutions, graphite type and ambient temperature, and so on. In the platform of activated carbon/graphite capacitors, the electrochemical behavior of anion-graphite intercalation compounds can be …