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.:

US 9325022 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 26, 2016

Filed:

May. 31, 2012
Applicants:

Yozo Okuyama, Yokosuka, JP;

Shigemasa Kuwata, Yokohama, JP;

Kazufumi Kodama, Zushi, JP;

Inventors:

Yozo Okuyama, Yokosuka, JP;

Shigemasa Kuwata, Yokohama, JP;

Kazufumi Kodama, Zushi, JP;

Assignee:

NISSAN MOTOR CO., LTD., Yokohama-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/14 (2006.01); H01M 8/10 (2006.01); H01M 8/02 (2006.01);
U.S. Cl.
CPC ...
H01M 8/1002 (2013.01); H01M 8/0234 (2013.01); H01M 8/0243 (2013.01); H01M 8/0245 (2013.01); Y02E 60/521 (2013.01); Y02P 70/56 (2015.11);
Abstract

A gas diffusion layer for a fuel cell includes a gas diffusion layer substrate and a microporous layer formed on the surface of the gas diffusion layer substrate. The microporous layer is formed into a sheet-like shape including a binder and a carbon material containing at least scale-like graphite, and the sheet-like microporous layer is attached to the gas diffusion layer substrate. The gas diffusion layer for a fuel cell having such a configuration, prevents the components included in the microporous layer from entering the gas diffusion layer substrate, so as to ensure gas permeability. In addition, the scale-like graphite contained in the microporous layer as an electrically conductive material improves electrical conductivity and gas permeability. Accordingly, the gas diffusion layer contributes to an improvement in performance of a polymer electrolyte fuel cell.


Find Patent Forward Citations

Okuyama, Yozo. (2016). Gas diffusion layer for fuel cell and method for manufacturing the same (U.S. Patent No. 9325022). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9325022

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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