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Air starvation of proton exchange membrane fuel cells and its beneficial effects on performance

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  • Su, Hang
  • Ye, Donghao
  • Cai, Yuanqi
  • Guo, Wei

Abstract

Air starvation occurring in a proton exchange membrane fuel cell will result in voltage drop and even a slightly reversal. However, a short period of air starvation may have a beneficial effect on the cell. In this paper, single cells are used to simulate the air starvation of a single cell in the stack and the related phenomena are studied. The experimental results show that when the starvation occurs in a single cell, the larger the output current, the more negative the voltage, the more obvious the hydrogen pumping; When the starvation occurs in the whole stack, the current and voltage of the cell and the amount of hydrogen pumping are only related to the hydrogen concentration on both sides of the cell. Subsequent research on single starved cell found that after a short period of 100 s of starvation, the cell's performance has improved, with an average increase of 22.3%@1500 mA/cm2, and ECSA of the catalyst increased slightly. The characterization of the catalyst before and after the air starvation found that the catalyst was not destroyed, indicating that the short-term air starvation will not damage the cell, but will improve the performance of it.

Suggested Citation

  • Su, Hang & Ye, Donghao & Cai, Yuanqi & Guo, Wei, 2022. "Air starvation of proton exchange membrane fuel cells and its beneficial effects on performance," Applied Energy, Elsevier, vol. 323(C).
    • Handle: RePEc:eee:appene:v:323:y:2022:i:c:s030626192200928x
    DOI: 10.1016/j.apenergy.2022.119626
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    Cited by:

    1. Antonio Nicolò Mancino & Carla Menale & Francesco Vellucci & Manlio Pasquali & Roberto Bubbico, 2023. "PEM Fuel Cell Applications in Road Transport," Energies, MDPI, vol. 16(17), pages 1-27, August.
    2. Huang, Ying & Song, Jiangnan & Deng, Xinyue & Chen, Su & Zhang, Xiang & Ma, Zongpeng & Chen, Lunjun & Wu, Yanli, 2023. "Numerical investigation of baffle shape effects on performance and mass transfer of proton exchange membrane fuel cell," Energy, Elsevier, vol. 266(C).

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