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:
Jun. 16, 2015
Filed:
Feb. 02, 2009
Paula T. Hammond, Newton, MA (US);
Avni A. Argun, Newton, MA (US);
J. Nathan Ashcraft, Somerville, MA (US);
Paula T. Hammond, Newton, MA (US);
Avni A. Argun, Newton, MA (US);
J. Nathan Ashcraft, Somerville, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Herein are disclosed methods, and compositions produced using them, to assemble highly conducting, hydrolytically stable polymer electrolyte films from commercially-available, water-soluble polymers using layer-by-layer assembly technology. In certain embodiments, these films can be used for electrochemical device applications which require an ion-conducting material to operate. For example, the power efficiency of any electrochemical device with a solid polymer electrolyte layer can be increased by this technology by virtue of the low ionic resistance of these layer-by-layer assembled thin film electrolytes. Specifically, direct-methanol operated fuel cells (DMFCs) should benefit remarkably, as the described technology offers very high conductivity values at fully hydrated conditions with low fuel (methanol) crossover.