抄録
The development of high-power-density Polymer Electrolyte Membrane (PEM) fuel cells is an effective approach to widely varied commercial applications. A bipolar plate is an important component for achieving high-power-density PEM fuel cells. Our investigation focused on a novel flow distribution method for the reactant gas in order to operate at a higher current density. Two types of bipolar plates with porous flow fields were evaluated. The hybrid flow field that consists of a porous medium and stamped land structure is superior in performance to the flow field made only of a porous medium. It is considered that the reactant gas distribution was improved by the stamped land region and increased the effective working area.
