Abstract
Exploring novel metal-metal batteries with a facile manufacturing process and low production cost is crucial for the development of next-generation energy storage systems. In this work, the electrochemical performance of a novel Cu–Na battery with Cu foil as a cathode and Na foil as an anode is explored for the first time. The Cu–Na battery exhibits good electrochemical reaction reversibility and cycling stability, which delivers a Coulombic efficiency of 61.5% under a charge capacity limitation of 0.02 mA h cm− 2 with a current density of 0.01 mA cm− 2 after 50 cycles. EIS analysis reveals that the Cu–Na battery maintains a stable electrochemical reaction resistance upon repeated cycles. The present work demonstrates that this Cu–Na battery could be a promising candidate for the next-generation energy storage system.
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Acknowledgements
This work is supported by the Guangxi Natural Science Foundation of China (2015GXNSFGA139006).
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WX: Investigation, Writing – original draft. YL: Conceptualization, Methodology, Writing – review & editing. JY: Conceptualization, Methodology, Writing – review & editing. JJ: Helped to discuss partial experimental data. QZ: Helped to discuss partial experimental data. All authors reviewed the manuscript.
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Xu, W., Li, Y., Yao, J. et al. Explore the electrochemical performance of a novel metal copper–sodium battery. J Appl Electrochem 53, 1953–1957 (2023). https://doi.org/10.1007/s10800-023-01904-0
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DOI: https://doi.org/10.1007/s10800-023-01904-0