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:
Feb. 24, 2015
Filed:
Jan. 14, 2011
Applicants:
Xinge Zhang, Vancouver, CA;
Anthony Wood, Calgary, CA;
Michel Riou, Edmonton, CA;
Inventors:
Assignee:
Versa Power Systems, Ltd., Calgary, Alberta, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/08 (2006.01); H01M 8/10 (2006.01); H01M 4/66 (2006.01); H01M 8/02 (2006.01); H01M 4/92 (2006.01); H01M 8/12 (2006.01);
U.S. Cl.
CPC ...
H01M 8/0232 (2013.01); H01M 8/0236 (2013.01); H01M 8/0245 (2013.01); H01M 4/92 (2013.01); H01M 2008/1293 (2013.01); Y02E 60/50 (2013.01); Y02E 60/525 (2013.01);
Abstract
A multilayer contact approach for use in a planar solid oxide fuel cell stack includes at least 3 layers of an electrically conductive perovskite which has a coefficient of thermal expansion closely matching the fuel cell material. The perovskite material may comprise LaECoNiOwhere E is a alkaline earth metal and x is greater than or equal to zero. The middle layer is a stress relief layer which may fracture during thermal cycling to relieve stress, but remains conductive and prevents mechanical damage of more critical interfaces.