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. 18, 2014
Filed:
Sep. 21, 2011
Jae-jun Lee, Yongin-si, KR;
Myung-sup Jung, Yongin-si, KR;
Do-yun Kim, Yongin-si, KR;
Jin-gyu Lee, Yongin-si, KR;
Sang-kook Mah, Yongin-si, KR;
Jae-jun Lee, Yongin-si, KR;
Myung-sup Jung, Yongin-si, KR;
Do-yun Kim, Yongin-si, KR;
Jin-gyu Lee, Yongin-si, KR;
Sang-kook Mah, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A solid acid having a core of calixarene or calix resorcinarene. The solid acid is an ion conducting compound in which at least one of the hydroxyl groups is substituted by an organic group having a cation exchange group at a terminal end, a polymer electrolyte membrane including the same, and a fuel cell using the polymer electrolyte membrane. The polymer electrolyte membrane can provide low methanol crossover and high ionic conductivity. Accordingly, a fuel cell having high efficiency can be obtained by using the polymer electrolyte membrane.