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:
Dec. 20, 2022
Filed:
Oct. 07, 2016
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01); H01M 4/90 (2006.01); H01M 8/1253 (2016.01); H01M 8/12 (2016.01);
U.S. Cl.
CPC ...
H01M 4/9033 (2013.01); H01M 4/8605 (2013.01); H01M 4/8657 (2013.01); H01M 8/1253 (2013.01); H01M 2004/8689 (2013.01); H01M 2008/1293 (2013.01);
Abstract
A fuel cell comprises an anode, a cathode, and a solid electrolyte layer disposed between the anode and the cathode. The cathode includes a main phase configured by a perovskite oxide including at least one of La or Sr at the A site and that is expressed by the general formula ABO, and a secondary phase configured by strontium oxide. The occupied surface area ratio of the secondary phase in a cross section of the cathode is greater than or equal to 0.05% and less than or equal to 3%.