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. 04, 2014
Filed:
Jul. 05, 2011
Tohru Oda, Toyota, JP;
Tohru Oda, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
Abstract
A fuel cell comprises an electrolyte membrane; first and second catalyst layers formed on respective faces of the electrolyte membrane; and first and second reinforcing layers holding therebetween the electrolyte membrane and the first and second catalyst layers, wherein the first catalyst layer and the first reinforcing layer are joined together with a force of not less than a specific joint strength that suppresses expansion and contraction of the electrolyte membrane, and the second catalyst layer and the second reinforcing layer are joined together with a force of less than a specific joint strength that releases a stress due to expansion and contraction of the electrolyte membrane, or the second catalyst layer and the second reinforcing layer are not joined together.