Corrosion resistant coated fuel cell bipolar plate with filled-in fine scale porosities and method of making the same
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United States of America Patent
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Nov 18, 2003
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N/A
app pub date -
Oct 8, 1999
filing date -
Oct 8, 1999
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Abstract
A corrosion resistant coated fuel cell plate and method of making the same are embodied in a metal plate provided with a multilayered conductive coating and then with an overcoating which fills in fine scale porosities in the coating. In one preferred embodiment, the overcoating is amorphous graphite applied through a deposition process. In another preferred embodiment, the overcoating is a thin layer of oxide created by a chemical anodization process.
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