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Electrochemical fuel cell with fluid distribution layer having non-uniform perforations
Electrochemical fuel cell with fluid distribution layer having non-uniform perforations
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机译:具有具有不均匀穿孔的流体分布层的电化学燃料电池
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摘要
An electrochemical fuel cell comprises at least one fluid distribution layer comprising a substantially fluid impermeable sheet material which is rendered fluid permeable at least in the active area through the non-uniform application of perforations. In some embodiments, the size of the perforations in the fluid distribution layer increases in the reactant flow direction. In other embodiments, the density of the perforations in the fluid distribution layer increases in the reactant flow direction. The fluid permeability of the fluid distribution layer may also increase from the inlet to a mid-point between the inlet and the outlet and then decrease thereafter to the outlet.
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