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首页> 外文会议>Hydrogen and oxygen evolution catalysis for water electrolysis 2 >Proton Exchange Membrane Electrolyzer Systems Operating Dynamically at High Current Densities
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Proton Exchange Membrane Electrolyzer Systems Operating Dynamically at High Current Densities

机译：高电流密度下动态运行的质子交换膜电解系统

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摘要

The fluctuating behavior of renewable energy sources hinders the widespread integration of those in a reliable electricity grid. Presumably, the wide operation range and rapid response of proton exchange membrane (PEM) electrolyzers can stabilize the grid, yet the degradation effects are not fully understood. The results presented here show no negative effect of dynamic operation at current 0.8, 1.6, 2.5 and 3.3 A cm~(-2), on commercial membrane electrode assemblies (MEA) with two different catalyst loadings. Conversely, the reduction of the loading of precious metal in the MEA leads to a cell voltage increase by 100 mV at 3.3 A cm~(-2). In addition, stack temperature correction of industrial facilities is necessary for proper comparison of cell potential and analysis of degradation mechanisms.
机译：可再生能源的波动行为阻碍了可再生能源在可靠电网中的广泛整合。据推测，质子交换膜（PEM）电解器的宽工作范围和快速响应可以稳定栅格，但其降解效果尚未完全明了。此处给出的结果表明，在电流为0.8、1.6、2.5和3.3 A cm〜（-2）的情况下，动态操作对带有两种不同催化剂负载量的商用膜电极组件（MEA）不会产生负面影响。相反，MEA中贵金属负载的减少导致在3.3 A cm〜（-2）时电池电压增加100 mV。另外，工业设备的烟囱温度校正对于正确比较电池电位和分析降解机理是必要的。

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  • 会议地点 San Diego(US)
  • 作者

    P. Lettenmeier; R. Wang; R. Abouatallah; F. Burggraf; A. S. Gago; K. A. Friedrich;

  • 作者单位

    Institute of Engineering Thennodynamics, German Aerospace Center, Pfaffenwaldring 38-40, Stuttgart, 70569, Germany;

    Hydrogenics Corporation, 220 Admiral Boulevard, Mississauga, ON L5T 2N6, Canada;

    Hydrogenics Corporation, 220 Admiral Boulevard, Mississauga, ON L5T 2N6, Canada;

    Institute of Engineering Thennodynamics, German Aerospace Center, Pfaffenwaldring 38-40, Stuttgart, 70569, Germany;

    Institute of Engineering Thennodynamics, German Aerospace Center, Pfaffenwaldring 38-40, Stuttgart, 70569, Germany;

    Institute of Engineering Thennodynamics, German Aerospace Center, Pfaffenwaldring 38-40, Stuttgart, 70569, Germany,Hydrogenics Corporation, 220 Admiral Boulevard, Mississauga, ON L5T 2N6, Canada;

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