Explore the electrochemical performance of a novel metal copper-sodium battery

作者：Xu, Wenhan; Li, Yanwei^*; Yao, Jinhuan^*; Jiang, Jiqiong; Zhu, Qing

来源：Journal of Applied Electrochemistry, 2023.

DOI：10.1007/s10800-023-01904-0

• Metal-metal batteries
• Copper cathode
• Sodium anode
• Electrochemical performance

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.

• 单位
  桂林理工大学