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:
Nov. 30, 2010
Filed:
Oct. 04, 2006
Jin-gyu Lee, Seoul, KR;
Sang-kook Mah, Seoul, KR;
Myung-sup Jung, Seongnam-si, KR;
Young-gyoon Ryu, Suwon-si, KR;
Jae-jun Lee, Suwon-si, KR;
Do-yun Kim, Seongnam-si, KR;
Jin-gyu Lee, Seoul, KR;
Sang-kook Mah, Seoul, KR;
Myung-sup Jung, Seongnam-si, KR;
Young-gyoon Ryu, Suwon-si, KR;
Jae-jun Lee, Suwon-si, KR;
Do-yun Kim, Seongnam-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A solid acid including a carbon nanotube (CNT), a spacer group combined with the CNT and an ionically conductive functional group connected to the spacer group. A polymer electrolyte membrane may include the same composition, and may be used in a fuel cell. The polymer electrolyte membrane using the solid acid has excellent ionic conductivity and suppresses the cross-over of methanol. The polymer electrolyte membrane is used as an electrolyte membrane of a fuel cell, for example, a direct methanol fuel cell.