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, 2015
Filed:
Jul. 25, 2012
Shinsuke Takeguchi, Osaka, JP;
Shinsuke Takeguchi, Osaka, JP;
Abstract
A polymer electrolyte fuel cell of the present invention includes a membrane-electrode assembly () and separators (A andB). Each of the electrodes (A andB) includes a catalyst layer (A,B) and a gas diffusion layer (A,B). One main surface of the catalyst layer contacts the polymer electrolyte membrane (). The separator (A) includes a peripheral portion (A) and a portion (A) other than the peripheral portion. The peripheral portion (A) of the separator (A) is formed in an annular shape when viewed from a thickness direction of the separator (A) and is a region including a portion located on an inner side of the outer periphery of the separator (A). The separator (A) is configured such that a porosity of the peripheral portion (A) is higher than that of the portion (A) other than the peripheral portion.