In order to improve the performance of proton exchange membrane fuel cell (PEMFC), the compressed nickel foam as flow field structure was applied to the fuel cell. The fuel cell test system was built and the performance of fuel cells with nickel foam flow field with different thicknesses were tested and analyzed by electrochemical active surface area (EASA), electrochemical impedance and polarization curve. And its operating parameters were optimized to improve the performance of PEMFC. Our results show that the membrane electrode assembly (MEA) can show a larger catalytic active area and uniformity of gas diffusion can be improved by using the nickel foam flow field instead of the conventional graphite serpentine flow field, and the impedance characteristic of 110PPI nickel foam can be improved by increasing the compression ratio of the original material. What's more, the polarization characteristic and power output performance of PEMFC with nickel foam flow field were improved by optimizing the operating parameters. Using the optimized operating parameters (cell temperature = 80 °C; humidification temperature = 75 °C; stoichiometric ratio = 2; back pressure = 0.23 Map), a peak power density of 1.89 W cm⁻² was obtained with an output voltage of 0.46 V.

为了改善质子交换膜燃料电池（PEMFC）的性能，将压缩镍泡沫作为流场结构应用于燃料电池。建立了燃料电池测试系统，并通过电化学活性表面积（EASA），电化学阻抗和极化曲线对具有不同厚度的镍泡沫流场的燃料电池的性能进行了测试和分析。并且对其运行参数进行了优化，以提高PEMFC的性能。我们的结果表明，使用镍泡沫流场代替常规的石墨蛇形流场，膜电极组件（MEA）可以显示更大的催化活性区域，并且可以改善气体扩散的均匀性，通过增加原始材料的压缩比可以改善110PPI泡沫镍的阻抗特性。此外，通过优化操作参数，改善了带有镍泡沫流场的PEMFC的极化特性和功率输出性能。使用优化的操作参数（电池温度= 80°C；加湿温度= 75°C；化学计量比= 2；背压= 0.23 Map），峰值功率密度为1.89 W cm用0.46 V的输出电压获得^-2。