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Effect of cell design on the durability of secondary zinc-air batteries

Author

Listed:
  • Mainar, Aroa R.
  • Iruin, Elena
  • Urdampilleta, Idoia
  • Grande, Hans-Jürgen
  • Blázquez, J. Alberto

Abstract

Secondary zinc-air batteries (ZAB) are promising sustainable energy storage systems, but their practical implementation has been hindered by a focus on materials, electrode/electrolyte design and formulations that do not translate into an efficient energy storage device. The prevailing cell design features an oversized zinc anode and an unbalanced electrolyte. As a result, the depth of discharge (DoD) of the zinc anode is typically low (<10%) and the durability of tests usually is limited to 500 h. This study focuses on evaluating the electrochemical impact of different cell designs for zinc-air batteries (ZABs) and highlights the critical role of positioning an electrolyte reservoir in close proximity to the zinc anode where a lifetime of up to 4000 h have been obtained. Our tests also involve high utilization of the zinc anode, ranging from 17.5% to 70.0% of the depth of discharge (DoD), equivalent to 136–546 mAh/gZn.

Suggested Citation

  • Mainar, Aroa R. & Iruin, Elena & Urdampilleta, Idoia & Grande, Hans-Jürgen & Blázquez, J. Alberto, 2024. "Effect of cell design on the durability of secondary zinc-air batteries," Applied Energy, Elsevier, vol. 353(PA).
    • Handle: RePEc:eee:appene:v:353:y:2024:i:pa:s0306261923014137
    DOI: 10.1016/j.apenergy.2023.122049
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