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. 26, 2012
Filed:
Nov. 07, 2008
Steven J. Hamrock, Stillwater, MN (US);
Matthew H. Frey, Cottage Grove, MN (US);
Michael A. Yandrasits, Hastings, MN (US);
Gregory M. Haugen, Edina, MN (US);
Andrew M. Herring, Nederland, CO (US);
James L. Horan, Golden, CO (US);
Niccolo V. Aieta, Denver, CO (US);
Steven J. Hamrock, Stillwater, MN (US);
Matthew H. Frey, Cottage Grove, MN (US);
Michael A. Yandrasits, Hastings, MN (US);
Gregory M. Haugen, Edina, MN (US);
Andrew M. Herring, Nederland, CO (US);
James L. Horan, Golden, CO (US);
Niccolo V. Aieta, Denver, CO (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
This disclosure provides polymer electrolytes, polymer electrolyte membranes (PEM's) and membrane electrode assemblies (MEA's) such as may be useful in fuel cells which contain or comprise polyoxometalates (POM's) or heteropolyacids (HPA's). In some embodiments the polyoxometalate, it's counterions or both may comprise Mn and/or Ce. In some embodiments the polymer electrolyte is fluorinated. In some embodiments the polymer electrolyte comprises a second acidic functional group other than a polyoxometalate. In another aspect, the present disclosure provides methods of making polymer electrolytes including methods which comprising a step of copolymerizing monomers comprising a covalently bound polyoxometalates and methods which comprise a step of covalently attaching a polyoxometalate to the polymer.