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:
Jan. 27, 2009
Filed:
Mar. 02, 2004
Tomohide Shibutani, Sayama, JP;
Osamu Kakutani, Sayama, JP;
Tomohide Shibutani, Sayama, JP;
Osamu Kakutani, Sayama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A fuel cell is provided having a positive electrode layer () and a negative electrode layer () disposed on the front and rear sides of an electrolyte membrane (), for generating electricity by bringing hydrogen into contact with a catalyst in the negative electrode layer and bringing oxygen into contact with a catalyst in the positive electrode layer. The positive electrode layer includes the components electrolyte, carbon (), a catalyst () carried on the carbon, a pore-forming material and a water-repellent resin. In the electrolyte membrane vicinity () of the positive electrode layer, which is a part where the reaction between the oxygen and the hydrogen ions proceeds readily, the electrolyte/carbon weight ratio and the carried catalyst amount are made large. In parts where product water tends to stagnate, the amounts of the pore-forming material and the water-repellent resin are increased.