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:
Jan. 20, 2015
Filed:
Feb. 03, 2012
Applicants:
Seong-woo Choi, Yongin-si, KR;
Dae-jong Yoo, Seoul, KR;
Ki-hyun Kim, Yongin-si, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/14 (2006.01); H01M 8/10 (2006.01); H01M 8/02 (2006.01);
U.S. Cl.
CPC ...
H01M 8/1053 (2013.01); H01M 8/0291 (2013.01); Y02E 60/521 (2013.01);
Abstract
A composite electrolyte membrane for a fuel cell with a controlled phosphoric acid-based material retention ratio. The composite electrolyte membrane includes an electrolyte membrane containing a compound having a phosphoric acid-based material-containing functional group. Also disclosed are a method for manufacturing the composite electrolyte membrane, and a fuel cell including the composite electrolyte membrane.