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:
Jun. 02, 2015
Filed:
Nov. 04, 2010
Robert Muecke, Juelich, DE;
Norbert H. Menzler, Juelich, DE;
Hans Peter Buchkremer, Heinsberg, DE;
Matthias Ruettinger, Reutte, AT;
Marco Brandner, Oy-Mittelberg, DE;
Thomas Franco, Huettlingen, DE;
Andreas Venskutonis, Reutte, AT;
Robert Muecke, Juelich, DE;
Norbert H. Menzler, Juelich, DE;
Hans Peter Buchkremer, Heinsberg, DE;
Matthias Ruettinger, Reutte, AT;
Marco Brandner, Oy-Mittelberg, DE;
Thomas Franco, Huettlingen, DE;
Andreas Venskutonis, Reutte, AT;
Forschungszentrum Juelich GmbH, Juelich, DE;
Abstract
The substrate-supported anode for a high-temperature fuel cell comprises an at least three-layer anode laminate on a metallic substrate. Each of the layers of the anode laminate comprises yttria-stabilized zirconia and nickel, wherein the mean particle size of the nickel decreases from one layer to the next as the distance from the substrate increases. The last layer of the anode laminate, which is provided for contact with the electrolyte, has a root mean square roughness of less than 4 μm. The overall mean pore size of this layer is typically between 0.3 and 1.5 μm. Starting powders having a bimodal particle size distribution of yttria-stabilized zirconia and nickel-containing powder are used at least for the first and second layers of the anode laminate. The mean particle size of the nickel-containing powder is reduced from one layer to the next, whereby it is advantageously no more than 0.5 μm in the last layer of the anode laminate.