Process for molding composite bipolar plates with reinforced outer edges
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jun 26, 2008
app pub date -
Dec 21, 2006
filing date -
Dec 21, 2006
priority date (Note) -
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Abstract
A process for molding a composite unipolar plate for a fuel cell stack that increases the strength of a header region of the plate. High strength, non-conductive prepeg inserts are positioned within the mold that are shaped to the configuration of the header region, including the openings that define the various inlet and outlet manifolds. A bulk molding compound charge is positioned in the mold and pressed under high heat so that the bulk molding compound disperses in the mold, and covers the prepeg inserts so that the prepeg inserts are cured to the bulk molding compound.
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