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:
Jan. 11, 2005
Filed:
Aug. 28, 2002
David P. Wilkinson, North Vancouver, CA;
Joy A. Roberts, Coquitlam, CA;
Nengyou Jia, Richmond, CA;
Eagranie Yuh, Vancouver, CA;
Shanna D. Knights, Burnaby, CA;
Jean St-pierre, Vancouver, CA;
David P. Wilkinson, North Vancouver, CA;
Joy A. Roberts, Coquitlam, CA;
Nengyou Jia, Richmond, CA;
Eagranie Yuh, Vancouver, CA;
Shanna D. Knights, Burnaby, CA;
Jean St-Pierre, Vancouver, CA;
Ballard Power Systems Inc., Burnaby, CA;
Abstract
The electrochemical performance of an ion-exchange membrane in a fuel cell system may be improved by impregnating therein a perfluoroamine. The amine may be primary, secondary or tertiary. Further, the amine is preferably water insoluble or only slightly water soluble. For example, the amine may be perfluorotriamylamine or perfluorotributylamine. Use of such a membrane system within a fuel cell may allow high or low temperature operation (i.e. at temperatures greater than 100° C. or less than 0° C.) as well as operation at low relative humidity.