Fuel cell separator plate having controlled fiber orientation and method of manufacture
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United States of America Patent
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Aug 19, 2003
Grant Date -
Dec 5, 2002
app pub date -
May 31, 2001
filing date -
May 31, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A composite separator plate for a fuel cell having a low-carbon loading and a high-polymer loading is disclosed. The separator plate composition includes a percentage of conductive fibrous filler having a relatively high aspect-ratio oriented through the thickness of the plate to achieve desired electrical and thermal conductivity requirements. A method of manufacturing the fuel separator plate having such fibers disposed in a through-plane orientation is also disclosed. The method includes forming a separator plate having a land height for orienting the fibers in a desired through-plane direction, then removing a portion of the land height to obtained the desired geometric configuration for the separator plate.
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