Solid polymer type fuel cell separator and method of production of same
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United States of America Patent
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Jan 29, 2013
Grant Date -
Feb 9, 2012
app pub date -
Sep 7, 2011
filing date -
Feb 27, 2006
priority date (Note) -
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Abstract
The present invention provides a method of production of a separator for a solid polymer type fuel cell characterized by shaping a substrate comprised of stainless steel, titanium, or a titanium alloy and then spraying the substrate surface with superhard core particles comprised of conductive compound particles of an average particle size of 0.01 to 20 μm mixed with a coating material and coated on their surfaces under conditions of a spray pressure of 0.4 MPa or less and a spray amount per cm2 of the substrate of 10 to 100 g in blast treatment. The ratio of the conductive compound to the mass of the core particles is 0.5 to 15 mass %.
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