| 摘要 |
An interconnect for a fuel cell stack includes a first plurality of ribs extending from a first major surface of the interconnect and defining a first plurality of gas flow channels between the ribs, the ribs extending between a first rib end and a second rib end and having a tapered profile in a vertical dimension, perpendicular to the first major surface of the interconnect, proximate at least one of the first rib end and the second rib end, wherein the ribs comprise a flat upper surface and rounded edges between the flat upper surface and the adjacent gas flow channels, the rounded edges having a first radius of curvature, and wherein the gas flow channels comprise a rounded surface having a second radius of curvature, different from the first radius of curvature. An interconnect may also include a riser channel opening for a gas extending through the interconnect, and a plenum for collecting the gas on a first major surface of the interconnect, wherein the plenum extends at least about 60% around the circumference of the riser channel opening. A method of fabricating an interconnect comprises placing a compressed metal powder interconnect on a porous support, and sintering the interconnect in the presence of a non-oxidizing gas. |
