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. 26, 1990
Filed:
Sep. 20, 1989
Yoshio Sato, Tokyo, JP;
Hiroshi Tsuneizumi, Tokyo, JP;
Hirotaka Nakagawa, Tokyo, JP;
Eiji Morishige, Tokyo, JP;
Hiroshi Mihara, Tokyo, JP;
NKK Corporation, Tokyo, JP;
Abstract
A fuel cell comprises a stack of cell members, each cell member including a flat-plate separator, an air electrode, a solid electrolyte and a fuel electrode, spacers arranged along peripheries of the separators among the separators of the stack of cell members, air supply paths for supplying air to the air electrodes, air being sent to the air electrodes through grooves of the flat-plate separators and air supply paths, air exhaust paths for exhausting excessive air, fuel supply paths for sending fuel to the fuel electrodes and fuel discharge paths for discharging excessive fuel. The fuel cell has an oxidation-resistant coating layer on the surface of the separator on the side of the air electrode. The solid electrolyte is made by the use of one selected from the group of Laser Physical Vapor Deposition Method, Plasma Thermal Spraying Method, Electron Beam Vapor Deposition Method and Sputtering Method. The air electrode comprises a mixed powder of lanthanum manganese oxide doped with strontium oxide and yttria-stabilized zirconia.