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US 2014/0178789 A1Published application
Fuel cell
AssigneeHonda Motor Co., Ltd.
InventorsMasaharu SUZUKI, Kentaro ISHIDA
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Abstract
A fuel cell includes a solid polymer electrolyte membrane, and a cathode separator and an anode separator sandwiching a solid polymer electrolyte membrane therebetween. The fuel cell includes an oxidant gas channel including a plurality of wave-shaped channel portions extending in a horizontal direction. Part of one of the plurality of wave-shaped channel portions that is disposed at the lower end in the vertical direction protrude downward from a planar region of electrode catalyst layers, i.e. a power generation region, in the vertical direction.
Claims2
A fuel cell comprising:
- a membrane electrode assembly comprising:
- an electrolyte membrane;
- and
- a pair of electrodes sandwiching the electrolyte membrane therebetween, each of the pair of electrodes including an electrode catalyst layer and a gas diffusion layer;
- a separator stacked on the membrane electrode assembly in a first horizontal direction, the separator and the membrane electrode assembly being disposed in upright positions so that electrode surfaces extend in a vertical direction;
- and
- a reactant gas channel through which a reactant gas flows along one of the electrode surfaces in a second horizontal direction, the reactant gas being an oxidant gas or a fuel gas, the reactant gas channel including a plurality of wave-shaped channel portions which are arranged in the vertical direction and each of which extends in the second horizontal direction so as to form a wave-like shape, part of at least one of the plurality of wave-shaped channel portions that is disposed at an end in the vertical direction protruding outward from a planar region of the electrode catalyst layers in the vertical direction.
4 more elements
Dependencies are inferred from the claim text.