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:
Sep. 29, 2020
Filed:
Apr. 28, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/1088 (2016.01); H01M 8/1025 (2016.01); H01M 8/1004 (2016.01); C08J 5/22 (2006.01); H01M 8/1046 (2016.01); H01M 8/1072 (2016.01); C08G 65/00 (2006.01); C08J 3/24 (2006.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/1088 (2013.01); C08G 65/00 (2013.01); C08J 3/24 (2013.01); C08J 5/2256 (2013.01); H01M 8/1004 (2013.01); H01M 8/1025 (2013.01); H01M 8/1046 (2013.01); H01M 8/1072 (2013.01); C08J 2371/00 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01); Y02P 70/56 (2015.11);
Abstract
The present specification provides a method for preparing a polymer electrolyte membrane including reducing a ketone group of a polyarylene ether ketone polymer of a polymer electrolyte membrane; and treating the polymer electrolyte membrane with sulfuric acid, a polymer electrolyte membrane prepared using the same, a membrane electrode assembly including the polymer electrolyte membrane, and a fuel cell including the membrane electrode assembly.