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<p>We developed all-solid-rechargeable air batteries (SSABs) using a redox-active organic molecule, anthraquinone-2-carboxylic acid (AQC), as the negative electrode. We investigated the effects of the solid polymer electrolyte membrane thickness and cathode active material concentration on the charge/discharge characteristics, rate performance, and cyclability of the resulting SSABs. Because of the low redox potential, compared with other previously tested redox-active materials, the AQC-based SSABs exhibited a high cell voltage. The use of a thicker proton conductive membrane as a solid electrolyte resulted in a higher discharge capacity and Coulombic efficiency.</p>

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All-solid-state rechargeable air batteries using anthraquinone-2-carboxylic acid as the negative electrode active material

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月12日

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  • Kenji Miyatake,
  • Hirotaka Yazawa,
  • Fang Xian,
  • Ahmed Mohamed Ahmed Mahmoud,
  • Vikrant Yadav

摘要

We developed all-solid-rechargeable air batteries (SSABs) using a redox-active organic molecule, anthraquinone-2-carboxylic acid (AQC), as the negative electrode. We investigated the effects of the solid polymer electrolyte membrane thickness and cathode active material concentration on the charge/discharge characteristics, rate performance, and cyclability of the resulting SSABs. Because of the low redox potential, compared with other previously tested redox-active materials, the AQC-based SSABs exhibited a high cell voltage. The use of a thicker proton conductive membrane as a solid electrolyte resulted in a higher discharge capacity and Coulombic efficiency.