Flow field plates
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United States of America Patent
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N/A
Issued Date -
Jun 13, 2002
app pub date -
Jun 6, 2001
filing date -
Jul 8, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to flow field plates and the manufacture thereof, for use in fuel cells. The method of manufacture comprises particulate etching of a plate material using a particulate etchant (eg. sand blasting), a particulate etchant accelerator and a particulate etchant-resistant patterned mask, such that a fluid flow pattern determined by the pattern design on said mask is formed on the plate material.
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