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:
Nov. 03, 2009
Filed:
Nov. 29, 2004
Satoshi Aoyama, Susono, JP;
Naoki Ito, Yokohama, JP;
Hiromichi Sato, Atsugi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
The manufacturing method of the invention is applied to manufacture a unit fuel cellwhich has a hydrogen-permeable metal layerof a hydrogen-permeable metal and an electrolyte layerthat is located on the hydrogen-permeable metal layerand has proton conductivity. The method first forms the electrolyte layeron the hydrogen-permeable metal layerand subsequently forms an electrically conductive cathodeon the electrolyte layerto block off an electrical connection between the cathodeand the hydrogen-permeable metal layerThe method releases Pd toward the electrolyte layerin a direction substantially perpendicular to the electrolyte layerto form a Pd layer as the cathodethat is thinner than the electrolyte layerThis arrangement of the invention effective prevents a potential short circuit, for example, between the cathode and the hydrogen-permeable metal layer, in the fuel cell, due to pores present in the electrolyte layer.