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. 15, 2015
Filed:
Feb. 07, 2013
Korea Institute of Science and Technology, Seoul, KR;
Hyoung-Juhn Kim, Gyeonggi-do, KR;
Eun Ae Cho, Seoul, KR;
Jong Hyun Jang, Seoul, KR;
Dae Ki Choi, Seoul, KR;
Chang Won Yoon, Seoul, KR;
Suk-Woo Nam, Seoul, KR;
Dirk Henkensmeier, Seoul, KR;
Tae Hoon Lim, Seoul, KR;
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul, KR;
Abstract
Provided is poly(benzimidazole-co-benzoxazole) having polybenzimidazole to which benzoxazole units are introduced, as a polymer electrolyte material. The polymer electrolyte material has both high proton conductivity and excellent mechanical properties even when it is obtained by in-situ phosphoric acid doping. The polymer electrolyte material may substitute for the conventional phosphoric acid-doped polybenzimidazole in a polymer electrolyte membrane fuel cell, particularly in a high-temperature polymer electrolyte membrane fuel cell.