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<p>In this study, Al-0.05&#xa0;Ga-0.15Bi-0.15Sn-0.025Pb (wt.%) aluminum alloy anodes were prepared. The microstructure, corrosion behavior, and discharge performance of the material were investigated. Through comprehensive comparison, the rolled alloy anode exhibited superior electrochemical performance in 4&#xa0;mol<b>·</b>L<sup>−1</sup> KOH solution. A square aluminum-air battery was assembled using the rolled alloy as the anode, and its applicability and discharge performance were tested at ambient temperatures ranging from 0 to 55&#xa0;°C. The battery demonstrated strong adaptability, stable discharge voltage, and high anode utilization. This was attributed to the uniform elemental distribution, increased active sites during rolling, and dispersed precipitated phases that provided additional pitting sources. The study confirms the feasibility of using the rolled Al-0.05&#xa0;Ga-0.15Bi-0.15Sn-0.025Pb alloy as an anode material for aluminum-air batteries in 4&#xa0;mol·L<sup>−1</sup> KOH solution. The average discharge voltage and energy density of the square single aluminum-air battery reached 1.37&#xa0;V and 3433·Wh·kg<sup>−1</sup>, respectively.</p>

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Study on properties of Al-0.05 Ga-0.15Bi-0.15Sn-0.025Pb alloy anode for alkaline square Al-air battery

  • 期刊论文

  • 发表日期：

    2025年8月26日

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  • Jingze Wang,
  • Siyuan Liu,
  • Yunlong Sun,
  • Jiaqing Yin,
  • Jing Chang

摘要

In this study, Al-0.05 Ga-0.15Bi-0.15Sn-0.025Pb (wt.%) aluminum alloy anodes were prepared. The microstructure, corrosion behavior, and discharge performance of the material were investigated. Through comprehensive comparison, the rolled alloy anode exhibited superior electrochemical performance in 4 mol·L−1 KOH solution. A square aluminum-air battery was assembled using the rolled alloy as the anode, and its applicability and discharge performance were tested at ambient temperatures ranging from 0 to 55 °C. The battery demonstrated strong adaptability, stable discharge voltage, and high anode utilization. This was attributed to the uniform elemental distribution, increased active sites during rolling, and dispersed precipitated phases that provided additional pitting sources. The study confirms the feasibility of using the rolled Al-0.05 Ga-0.15Bi-0.15Sn-0.025Pb alloy as an anode material for aluminum-air batteries in 4 mol·L−1 KOH solution. The average discharge voltage and energy density of the square single aluminum-air battery reached 1.37 V and 3433·Wh·kg−1, respectively.