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:
Oct. 06, 2009
Filed:
Nov. 30, 2005
Jong Hyun Lee, Seongnam-si, KR;
Hwan Soo Shin, Anyang-si, KR;
Hee Woo Rhee, Seoul, KR;
Young Taek Kim, Seoul, KR;
Min Kyu Song, Suwon-si, KR;
Min Sung Kim, Seoul, KR;
Jong Hyun Lee, Seongnam-si, KR;
Hwan Soo Shin, Anyang-si, KR;
Hee Woo Rhee, Seoul, KR;
Young Taek Kim, Seoul, KR;
Min Kyu Song, Suwon-si, KR;
Min Sung Kim, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
The present invention relates to a composite electrolyte membrane for fuel cells that has high proton conductivity and low fuel permeability even under low humidity conditions and at elevated temperatures. The membrane, comprising a cation exchange resin and acid-treated dendrimers, has great utility in large and medium fuel cells for applications in household appliances, electric vehicles, etc.