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Displacement Reaction Mechanism of CuV2O6 Nanowires Cathode for Rechargeable Aqueous Zinc Ion Batteries

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 mAh g-1 at a current density of 100 mA g-1 and a capacity of 143 mAh g−1 remained at 5 A g-1 after 1200 cycles with retention of ~ 100% except for initial capacity decay. Systematic structural and elemental characterization confirms the reduction/oxidation of Cu2+/Cu0 is reversible during the electrochemical process. This work brings a new prospect of designing more cathode materials with a displacement reaction mechanism for Zn-ion batteries.

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Publication details

The article was received on 01 Nov 2019, accepted on 27 Nov 2019 and first published on 27 Nov 2019


Article type: Paper
DOI: 10.1039/C9DT04226A
Dalton Trans., 2019, Accepted Manuscript

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    Displacement Reaction Mechanism of CuV2O6 Nanowires Cathode for Rechargeable Aqueous Zinc Ion Batteries

    X. Yu, F. Hu, F. Cui, J. Zhao, C. Guan and K. Zhu, Dalton Trans., 2019, Accepted Manuscript , DOI: 10.1039/C9DT04226A

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