Composite Bipolar Plate for Unitized Fuel Cell/Electrolyzer Systems
John H. Glenn Research Center
Wednesday, April 01 2009
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A weight-saving design is applicable toward space missions, submarines, and high-altitude aircraft.
In a substantial improvement over present alkaline systems, an advanced hybrid bipolar plate for a unitized fuel cell/ electrolyzer has been developed. This design, which operates on pure feed streams (H2/O2 and water, respectively) consists of a porous metallic foil filled with a polymer that has very high water transport properties. Combined with a second metallic plate, the pore-filled metallic plates form a bipolar plate with an empty cavity in the center.
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