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:
May. 23, 2006
Hae-kyoung Kim, Seoul, KR;
Jae-sung Lee, Pohang-si, KR;
Young-kwon Kim, Pohang-si, KR;
Hyuk Chang, Seongnam-si, KR;
Hae-kyoung Kim, Seoul, KR;
Jae-sung Lee, Pohang-si, KR;
Young-kwon Kim, Pohang-si, KR;
Hyuk Chang, Seongnam-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A proton conducting titanate includes titanate and a sulfonic acid group-containing moiety having proton conductivity introduced into the surface of the titanate, in which the sulfonic acid group-containing moiety is directly bound to the titanate via an ether bond (—O). A polymer nano-composite membrane includes the proton conducting titanate, and a fuel cell includes the polymer nano-composite membrane. The proton conducting titanate is provided with a sulfonic acid functional group having proton conductivity, which increases the proton conductivity of the polymer nano-composite membrane. The polymer nano-composite membrane includes the proton conducting titanate, and thus can have a controllable degree of swelling in a methanol solution, and the transmittance of the polymer nano-composite membrane can be reduced. The polymer nano-composite membrane can be used as a proton conducting membrane in fuel cells to improve the thermal stability, energy density, and fuel efficiency of the fuel cells.