1. The displacement reaction mechanism of the CuV2O6 nanowire cathode for rechargeable aqueous zinc ion batteries.
- Author
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Yu, Xin, Hu, Fang, Cui, Fuhan, Zhao, Jun, Guan, Chao, and Zhu, Kai
- Subjects
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SUBSTITUTION reactions , *ZINC ions , *CATHODES , *ELECTRIC batteries , *ELECTROLYTIC reduction , *CAPACITY building - Abstract
The development of high capacity, low cost, and high safety cathode materials for rechargeable aqueous zinc-ion batteries (ZIBs) is an ongoing challenge. Herein, CuV2O6 nanowires are prepared by a facile hydrothermal method to be used as a high-capacity cathode material for ZIBs. The sample displays an initial discharge capacity of 338 mA h g−1 at a current density of 100 mA g−1 and a capacity of 143 mA h g−1 remained at 5 A g−1 after 1200 cycles with a retention of ∼100% except for the initial capacity decay. Systematic structural and elemental characterization confirms that the reduction/oxidation of Cu2+/Cu0 is reversible during the electrochemical process. This work provides new prospects for designing more cathode materials based on the displacement reaction mechanism for Zn-ion batteries. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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