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Progress in Al/AgO Electrode Materials for Seawater-Activated Batteries

Author

Listed:
  • Peiqiang Chen

    (School of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
    Institute of System Engineering, Academy of Military Science, Beijing 102300, China)

  • Qun Zheng

    (School of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China)

  • Changfu Wang

    (Institute of System Engineering, Academy of Military Science, Beijing 102300, China)

  • Penglin Dai

    (Institute of System Engineering, Academy of Military Science, Beijing 102300, China)

  • Yujuan Yin

    (Institute of System Engineering, Academy of Military Science, Beijing 102300, China)

  • Jinmao Chen

    (Institute of System Engineering, Academy of Military Science, Beijing 102300, China)

  • Xudong Wang

    (Institute of System Engineering, Academy of Military Science, Beijing 102300, China)

  • Wanli Xu

    (Institute of System Engineering, Academy of Military Science, Beijing 102300, China)

  • Man Ruan

    (Institute of System Engineering, Academy of Military Science, Beijing 102300, China)

Abstract

Al/AgO seawater-activated batteries with high specific energy and high specific power are widely used at present. The AgO electrode determines the performance of the battery, with its active material utilization rate having a significant impact on the specific capacity, energy density and discharge capacity of the battery. Therefore, this study briefly introduces the structure and working principle of Al/AgO seawater-activated batteries. Starting from the AgO material itself, common preparation methods for such positive electrode materials—including sintered silver oxide electrodes, pressed silver oxide electrodes and thin-film silver oxide electrodes—are introduced, and the factors influencing their electrochemical performance are analyzed in depth. We elaborate on the relevant research progress regarding AgO electrodes in terms of improving battery performance, detailing the effects of the silver powder’s morphology, porosity, purity, ordered structure, surface treatment and doping modification methods on silver oxide electrodes. Finally, various methods for improving the electrochemical performance of silver oxide electrodes are detailed. Current challenges and possible future research directions are analyzed, and prospects for the future development of high-specific-energy batteries based on AgO electrode materials are discussed. Overall, this review highlights the characteristics of Al/AgO batteries, providing a theoretical basis for the development of high-performance Al/AgO batteries.

Suggested Citation

  • Peiqiang Chen & Qun Zheng & Changfu Wang & Penglin Dai & Yujuan Yin & Jinmao Chen & Xudong Wang & Wanli Xu & Man Ruan, 2025. "Progress in Al/AgO Electrode Materials for Seawater-Activated Batteries," Energies, MDPI, vol. 18(15), pages 1-20, July.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:15:p:4007-:d:1711611
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