The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2010
Filed:
Jun. 06, 2005
Joseph M. Keller, Grand Blanc, MI (US);
Karl J. Haltiner, Jr., Fairport, NY (US);
Subhasish Mukerjee, Rochester, NY (US);
Diane M. England, Bloomfield, NY (US);
Gary F. Reisdorf, Penfield, NY (US);
Steven L. Cooper, Flint, MI (US);
Willem Vilders, Iii, Holly, MI (US);
Joseph M. Keller, Grand Blanc, MI (US);
Karl J. Haltiner, Jr., Fairport, NY (US);
Subhasish Mukerjee, Rochester, NY (US);
Diane M. England, Bloomfield, NY (US);
Gary F. Reisdorf, Penfield, NY (US);
Steven L. Cooper, Flint, MI (US);
Willem Vilders, III, Holly, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
An electrical interconnect for a solid-oxide fuel cell stack assembly, including a novel sintering paste and an improved manufacturing process for an anode and cathode electrical contacts is disclosed. On the anode side, the paste contains a metallic oxide such as NiO, and an amount of sacrificial pore-forming particles, such as carbon particles or polymer spheres, which are vaporized during sintering of the paste, resulting in a very porous connection having good electrical conductivity and good adhesion. A preferred level of pore-former in the paste is about 40 volume percent. On the cathode side, the paste contains a noble metal such as for example, gold, platinum, palladium or rhodium, and an amount of the sacrificial pore-forming particles. The paste may be applied to the surfaces in a grid pattern or, because the resulting contact is porous after sintering, it may be applied as a continuous layer.