Fuel cell coolant bubble control
To mitigate bubble blockage in water passageways, in or near reactant gas flow field plates of fuel cells, passageways are configured with (a) cross sections having intersecting polygons or other shapes, obtuse angles including triangles and trapezoids, or (b) hydrophobic surfaces, or (c) differing...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | To mitigate bubble blockage in water passageways, in or near reactant gas flow field plates of fuel cells, passageways are configured with (a) cross sections having intersecting polygons or other shapes, obtuse angles including triangles and trapezoids, or (b) hydrophobic surfaces, or (c) differing adjacent channels, or (d) water permeable layers adjacent to water channels or hydrophobic/hydrophilic layers, or (e) diverging channels. |
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