Fuel cell separator and fuel cell
AssigneesToyota Jidosha Kabushiki Kaisha, Aisin Takaoka Co., Ltd.
InventorsKuroudo Maeda, Naotaka Aoyama, Masahiro Mizuno
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Abstract
A fuel cell separator in which the adhesion of a conductive coating formed on the surface of the fuel cell separator is further improved. The fuel cell separator (20) includes a metal substrate (24) molded from titanium, and a conductive coating (30) that exhibits conductivity and is formed on the surface of the metal substrate (24), wherein the conductive coating (30) contains conductive particles, and the average particle size of the conductive particles is not less than 1 nm and not more than 100 nm. The average particle size of the conductive particles is preferably not less than 1 nm and not more than 10 nm, and more preferably not less than 1 nm and not more than 5 nm.
Claims9
A fuel cell separator, comprising:
- a metal substrate molded from titanium,
- a conductive coating that exhibits conductivity and is formed on a surface of the metal substrate, and
- an oxide layer being a continuous layer provided between the metal substrate and the conductive coating,
- wherein
- the conductive coating comprises gold particles,
- an average particle size of the gold particles is not less than 1 nm and not more than 100 nm, and
- the thickness of the oxide layer is from 5 nm to 200 nm.
Dependencies are inferred from the claim text.