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:
Jun. 19, 2018
Filed:
Apr. 25, 2013
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Masamichi Utsunomiya, Otsu, JP;
Toshiya Kamae, Otsu, JP;
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01); H01M 4/96 (2006.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 4/8626 (2013.01); H01M 4/8657 (2013.01); H01M 4/96 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01);
Abstract
A gas diffusion electrode medium is for a fuel cell, has a low in-plane gas permeability and favorable water drainage characteristics in addition to high conductivity, and is able to exhibit high cell performance across a wide temperature range from low temperatures to high temperatures. The gas diffusion electrode medium is characterized by a microporous region being disposed at least at one surface of an electrode substrate, and the microporous region containing flake graphite having an aspect ratio of 50-5000.