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:
May. 28, 2024
Filed:
Aug. 20, 2021
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Takumi Okuyama, Tokyo, JP;
Takeshi Hirai, Tokyo, JP;
Assignee:
AGC Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/1039 (2016.01); C08F 216/14 (2006.01); H01M 8/1004 (2016.01); H01M 8/1023 (2016.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 8/1039 (2013.01); C08F 216/1475 (2020.02); H01M 8/1004 (2013.01); H01M 8/1023 (2013.01); C08F 2800/20 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01);
Abstract
To provide a polymer electrolyte membrane capable of producing a polymer electrolyte fuel cell excellent in power generation characteristics and excellent in hydrogen gas utilization efficiency, as well as a membrane electrode assembly and a polymer electrolyte fuel cell obtainable by using it. The polymer electrolyte membrane of the present invention comprises a polymer electrolyte, of which the hydrogen gas permeation coefficient under the conditions of a temperature of 80° C. and a relative humidity of 10% is at most 2.4×10cm·cm/(s·cm·cmHg) and has a membrane thickness of from 7 to 20 μm.