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:
Jul. 13, 2010
Filed:
Mar. 12, 2007
Koji Hoshino, Naka-gun, JP;
Kei Hosoi, Naka-gun, JP;
Takashi Yamada, Naka-gun, JP;
Jun Akikusa, Naka-gun, JP;
Koji Hoshino, Naka-gun, JP;
Kei Hosoi, Naka-gun, JP;
Takashi Yamada, Naka-gun, JP;
Jun Akikusa, Naka-gun, JP;
Mitsubishi Materials Corp., Tokyo, JP;
The Kansai Electric Power Co., Inc., Osaka, JP;
Abstract
A solid oxide fuel cell provided with a power cell () in which a fuel electrode layer () is arranged on one surface of a solid electrolyte layer () and an air electrode layer () is arranged on the other surface thereof, wherein the solid electrolyte layer () has a two layer structure including a first electrolyte layer () made of a ceria based oxide material and a second electrolyte layer () made of a lanthanum gallate based oxide material, and the second electrolyte layer is formed on the side of the air electrode layer. Preferably, the material composition for the fuel electrode layer () is a mixture of Ni and CeSmO, wherein the composition ratio of component materials is graded along the thickness thereof in such a way that the quantity of Ni is made less than the quantity of CeSmOnear the boundary interface with said solid electrolyte layer, and the mixing ratio of Ni is gradually increased with an increasing distance away from the interface.