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. 16, 2012
Filed:
Jul. 18, 2007
Applicants:
Arumugam Manthiram, Austin, TX (US);
Yongzhu Fu, Austin, TX (US);
Inventors:
Arumugam Manthiram, Austin, TX (US);
Yongzhu Fu, Austin, TX (US);
Assignee:
Board of Regents, The University of Texas System, Austin, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention includes method, compositions and devices including acid-base polymer membranes with high proton conductivity at low relative humidity, good thermal and mechanical stabilities and low methanol crossover. The acid-base polymer membrane includes an acidic polymer mixed with a basic polymer. The acidic polymer includes an acidic group attached to an aromatic polymer, while the basic polymer includes at least one heterocyclic ring structure attached to an aromatic polymer.