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:
Dec. 28, 2021
Filed:
May. 11, 2017
Applicant:
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Inventors:
Takahiro Tago, Tokyo, JP;
Kuon Miyazaki, Tokyo, JP;
Assignee:
ASAHI KASEI KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/1032 (2016.01); C08G 61/12 (2006.01); C08J 5/22 (2006.01); C08L 25/02 (2006.01); C08L 65/00 (2006.01); H01M 8/1027 (2016.01); H01M 8/1039 (2016.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/1032 (2013.01); C08G 61/12 (2013.01); C08J 5/2225 (2013.01); C08L 25/02 (2013.01); C08L 65/00 (2013.01); H01M 8/1027 (2013.01); H01M 8/1039 (2013.01); C08J 2365/00 (2013.01); C08L 2207/02 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01);
Abstract
A polymer electrolyte membrane of the present disclosure comprises a perfluorosulfonic acid resin (A), wherein the polymer electrolyte membrane has a phase-separation structure having a phase where fluorine atoms are detected in majority and a phase where carbon atoms are detected in majority, in an image of a membrane surface observed under an SEM-EDX, and the polymer electrolyte membrane has a phase having an average aspect ratio of 1.5 or more and 10 or less in an image of a membrane cross-section observed under an SEM.