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:
Mar. 16, 2021
Filed:
Dec. 16, 2016
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Kazuyo Shigeta, Otsu, JP;
Masamichi Utsunomiya, Otsu, JP;
Yasutaka Okano, Otsu, JP;
Yasuaki Tanimura, Otsu, JP;
Toshiya Kamae, Ehime, JP;
Assignee:
TORAY INDUSTRIES, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01); H01M 4/96 (2006.01); H01M 8/0234 (2016.01); H01M 8/0245 (2016.01); H01M 8/04119 (2016.01); H01M 4/88 (2006.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 4/8605 (2013.01); H01M 4/86 (2013.01); H01M 4/8807 (2013.01); H01M 4/96 (2013.01); H01M 8/0234 (2013.01); H01M 8/0245 (2013.01); H01M 8/04119 (2013.01); H01M 8/10 (2013.01);
Abstract
A gas diffusion electrode in which a microporous layer is provided on at least one surface of a conductive porous substrate, wherein the areas obtained by dividing the cross section perpendicular to the plane of the microporous layer into three equal parts in the thickness direction are a first area, a second area, and a third area, with respect to the conductive porous substrate side, the fluorine strength of the third area being 0.8 to 1.2 times the fluorine strength of the second area.