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:
Feb. 10, 2009
Filed:
Apr. 30, 2004
Keon Kim, Seongbuk-gu, KR;
Heung Chan Lee, Seongbuk-gu, KR;
Hyun Sil Hong, Seongbuk-gu, KR;
You Mee Kim, Seongbuk-gu, KR;
Keon Kim, Seongbuk-gu, KR;
Heung Chan Lee, Seongbuk-gu, KR;
Hyun Sil Hong, Seongbuk-gu, KR;
You Mee Kim, Seongbuk-gu, KR;
Korea Chungang Educational Foundation, Seoul, KR;
Abstract
A proton conducting polymer having a repeating unit given by formula (1) below is provided. A proton conducting polymer membrane manufactured using the proton conducting polymer can be more easily manufactured than a conventional fluorine-based membrane and can be commercialized as an automobile fuel cell due to its low cost of production. Also, the proton conducting polymer membrane has high moisture content and does not cause the water flooding at high current density, thereby improving the efficiency of a cell. In addition, the proton conducting polymer membrane enables a fuel cell to stably operate at temperatures of 100° C. or higher, thereby preventing the poisoning of a catalyst and extending the lifetime of the fuel cell.