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MEASUREMENT OF THE DISTRIBUTIONS OF LOCAL CURRENT DENSITY AND LOCAL IONIC RESISTANCE OF PEFCS

机译:测量局部电流密度和PEFC局部离子抗性的分布

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An experimental apparatus for a PEFC was constructed with which the local ionic resistance distribution can be measured as well as the local reaction current distribution, using segmented current collectors and an AC resistance meter. The apparatus presented a clear view on the current distribution and its causes: hydration and dehydration of the membrane and the oxygen consumption along the gas streams. The effects of flow direction, gas stoichiometry and humidification were examined.
机译:构建了一种用于PEFC的实验装置,其中可以使用分段集电器和AC电阻计来测量局部离子电阻分布以及局部反应电流分布。该装置对电流分布呈现了清晰的视图及其原因:膜的水合和脱水和沿气流的氧气消耗。研究了流动方向,气体化学计量和加湿的影响。

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