Conducting plates for fuel cell elements

摘要

The present invention relates to a fuel cell element having an active core interposed between a first and second conducting plate, wherein at least the first conducting plate is made from an alloy having, in percentages by weight, 24.0 to 27.0% nickel; 13.5 to 16.0% chromium; 1.90 to 2.35% titanium; 1.0 to 1.5% molybdenum; 0.10 to 0.50% vanadium; at most 0.08% carbon; at most 2.0% manganese; at most 1.0% silicon; at most 0.35% aluminum; at most 0.03% sulphur; and at most 0.01% boron, the balance consisting of iron and impurities.

主权项

1. A fuel cell element comprising:
a first conducting plate and a second conducting plate, wherein said first conducting plate has at least one face with an arithmetic roughness Sa of 0.12 μm or higher and a maximum height amplitude St of less than 4 μm, an active core comprising an anode, a cathode, and an electrolyte interposed between said anode and said cathode, said active core being interposed between said first and second conducting plates, wherein at least said first conducting plate comprises at least one alloy having, in percentages by weight: 24.0 to 27.0% nickel; 13.5 to 16.0% chromium; 1.90 to 2.35% titanium; 1.0 to 1.5% molybdenum; 0.10 to 0.50% vanadium; at most 0.08% carbon; at most 2.0% manganese; at most 1.0% silicon; at most 0.35% aluminium; at most 0.03% sulphur; and at most 0.01% boron, the balance consisting of iron and impurities.