FUEL CELL SEPARATOR MANUFACTURING METHOD
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United States of America Patent
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Sep 12, 2024
app pub date -
Jan 8, 2024
filing date -
Mar 8, 2023
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Abstract
The present disclosure relates to a fuel cell separator manufacturing method involving immersing a stainless-steel base material formed into a shape of a separator in an acidic solution having a fluorine ion concentration of 0.1 ppm or higher and a pH of 1±0.2 at 80° C.±5° C. for 60 minutes or longer to perform a modification treatment on a surface of the stainless-steel base material.
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