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US 11,114,676 B2Granted
Fuel cell separator
AssigneeToyota Jidosha Kabushiki Kaisha
InventorSatoshi Takata
Life of this patent
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Abstract
A fuel cell separator having high corrosion resistance and electrical conductivity is provided. This fuel cell separator includes, on a substrate, a composite film containing an antimony-doped tin oxide and a tin-doped indium oxide, in which an element ratio of tin to indium (Sn/In) in the composite film is 1.4 or smaller.
Claims2
A fuel cell separator comprising, on a substrate, a composite film containing an antimony-doped tin oxide (ATO) and a tin-doped indium oxide,
- wherein an element ratio of tin to indium (Sn/In) in the composite film is 1.4 or smaller, and
- the composite film includes 30-60% by volume of the ATO in the composite film.
A fuel cell separator comprising:
- on a substrate,
- a composite film containing an antimony-doped tin oxide (ATO) and a tin-doped indium oxide;
- and
- a tin-doped indium oxide film, in this order,
- wherein an element ratio of tin to indium (Sn/In) in the composite film is 1.4 or smaller, and
- the composite film includes 30-60% by volume of the ATO in the composite film.
3 more elements
Dependencies are inferred from the claim text.