Improving the performance of supercapacitors by combining polymeric redox couples and a polymer hydrogel separator
Xiaohong Liang1, Jiang Wu2, Zan Hua2
1Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China. gml@ustc.edu.cn.
Abstract:
Based on a combination of polymeric redox couples and a polymer hydrogel separator, the performance of aqueous supercapacitors can be improved by concurrently increasing the specific capacitance, widening the electrolyte decomposition window, improving the cycling performance, and suppressing the self-discharge of both the electrical double-layer and faradaic charge storage.
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