Electrochemical Capacitors Based on Anion-Graphite Intercalation Compounds

Authors

Hong-yu WANG, State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China;Follow
Hui FAN, State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China;University of Chinese Academy of Sciences, Beijing,100049,China;
Xiao-hong WANG, State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China;University of Chinese Academy of Sciences, Beijing,100049,China;
Li Qi, State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China;

Corresponding Author

Hong-yu WANG(hongyuwang@ciac.ac.cn)

Abstract

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 systematically studied by a series of in situ electrochemical techniques. Future development in this type of electrode materials has been anticipated in terms of new electric energy storage devices under different circumstances.

Graphical Abstract

Keywords

Anion-graphite intercalation compounds, Electrochemical capacitors, Solvation effect, Dual-ion cells.

DOI Link

https://doi.org/10.13208/j.electrochem.170343

Publication Date

2017-10-28

Online Available Date

2017-04-10

Revised Date

2017-04-09

Received Date

2017-03-22

Recommended Citation

Hong-yu WANG, Hui FAN, Xiao-hong WANG, Li Qi. Electrochemical Capacitors Based on Anion-Graphite Intercalation Compounds[J]. Journal of Electrochemistry, 2017 , 23(5): 497-506.
DOI: 10.13208/j.electrochem.170343
Available at: https://jelectrochem.xmu.edu.cn/journal/vol23/iss5/2