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Transient phenomenon of step switching for current or voltage in PEMFC

Author

Listed:
  • Hsu, Chun-Ying
  • Weng, Fang-Bor
  • Su, Ay
  • Wang, Chao-Yang
  • Hussaini, Irfan Saif
  • Feng, Teng-Lang

Abstract

The transient phenomenon of fuel cell with 5cm2 active area is investigated in this study by current density step increase and switching voltage under different conditions. It is found that there is an undershoot when the current density step increase is at the loading of 60% RH anode cathode, 3 stoic., 70°C, 15psi for automobile applications. The voltage is almost zero under 0.2 step increase to 1.0A/cm2 due to the H+ transport in membrane or H2/O2 in catalyst layer is almost used up. The undershoot phenomenon is more serious under gases stoichiometries of 3.0/3.0 when H2 is fully humidified due to low gas concentration or flooding on the electrode. This phenomenon would induce the degradation of fuel cell components.

Suggested Citation

  • Hsu, Chun-Ying & Weng, Fang-Bor & Su, Ay & Wang, Chao-Yang & Hussaini, Irfan Saif & Feng, Teng-Lang, 2009. "Transient phenomenon of step switching for current or voltage in PEMFC," Renewable Energy, Elsevier, vol. 34(8), pages 1979-1985.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:8:p:1979-1985
    DOI: 10.1016/j.renene.2008.12.024
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    Cited by:

    1. Cheng Chang & Weibin Chang & Jiangang Ma & Yafu Zhou, 2021. "Steady-State Control of Fuel Cell Based on Boost Mode of a Dual Winding Motor," Energies, MDPI, vol. 14(15), pages 1-15, August.
    2. Chen, Dongfang & Pei, Pucheng & Meng, Yining & Ren, Peng & Li, Yuehua & Wang, Mingkai & Wang, Xizhong, 2022. "Novel extraction method of working condition spectrum for the lifetime prediction and energy management strategy evaluation of automotive fuel cells," Energy, Elsevier, vol. 255(C).
    3. Zeng, Tao & Zhang, Caizhi & Zhou, Anjian & Wu, Qi & Deng, Chenghao & Chan, Siew Hwa & Chen, Jinrui & Foley, Aoife M., 2021. "Enhancing reactant mass transfer inside fuel cells to improve dynamic performance via intelligent hydrogen pressure control," Energy, Elsevier, vol. 230(C).
    4. Pei, Pucheng & Chen, Huicui, 2014. "Main factors affecting the lifetime of Proton Exchange Membrane fuel cells in vehicle applications: A review," Applied Energy, Elsevier, vol. 125(C), pages 60-75.

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