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Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
Design Strategies for Vanadium-based Aqueous Zinc-Ion Batteries
1Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
Abstract:
Aqueous zinc-ion batteries (ZIBs) are considered promising energy storage devices for large-scale energy storage systems as a consequence of their safety benefits and low cost. In recent years, various vanadium-based compounds have been widely developed to serve as the cathodes of aqueous ZIBs because of their low cost and high theoretical capacity. Furthermore, different energy storage mechanisms are observed in ZIBs based on vanadium-based cathodes. In this Minireview, we present a comprehensive overview of the energy storage mechanisms and structural features of various vanadium-based cathodes in ZIBs. Furthermore, we discuss strategies for improving the electrochemical performance of vanadium-based cathodes; including, insertion of metal ions, adjustment of structural water, selection of conductive additives, and optimization of electrolytes. Finally, this Minireview offers insight into potential future directions in the design of innovative vanadium-based electrode materials.
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