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:
Oct. 20, 1998
Filed:
Oct. 27, 1995
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A fuel cell includes a sheet-shaped solid electrolyte which exhibits ion conductivity, a fuel electrode to which is supplied fuel functioning as a negative electrode active material, and an oxygen electrode to which is supplied oxygen functioning as a positive electrode active material. The fuel electrode is positioned on one surface of the solid electrolyte while the oxygen electrode is positioned on the opposite surface of the solid electrolyte. A fuel electrode electricity collector has a plurality of first projection portions that contact the surface of the fuel electrode that faces away from the solid electrolyte. As a result, a plurality of fuel passages are formed through which fuel is to be passed. An oxygen electrode electricity collector has a plurality of second projecting portions that contact the surface of the oxygen electrode facing away from these solid electrolyte. As a result, a plurality of oxygen passages are formed through which oxygen is to be passed. At least one of the first projecting portions or one of the second projecting portions is provided with a curved portion. This results in an improvement in the electrical collectability of the fuel cell.