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Title: Composite membranes, methods of making same, and applications of same

In one aspect of the present invention, a method of fabricating a composite membrane includes: forming a first polymer solution from a first polymer and a second polymer solution from a second polymer, respectively, where the first polymer includes a charged polymer and the second polymer includes an uncharged polymer; electrospinning, separately and simultaneously, the first and second polymer solutions to form a dual fiber mat with first polymer fibers and second polymer fibers; and processing the dual fiber mat by softening and flowing one of the first or second polymer fibers to fill in the void space between the other of the first and second polymer fibers so as to form the composite membrane. In some embodiments, the composite membrane may be a proton exchange membrane (PEM) or an anion exchange membrane (AEM).
Inventors:
; ;
Issue Date:
OSTI Identifier:
1254129
Assignee:
VANDERBILT UNIVERSITY (Nashville, TN) GFO
Patent Number(s):
9,350,036
Application Number:
13/567,857
Contract Number:
FG36-06GO16030
Resource Relation:
Patent File Date: 2012 Aug 06
Research Org:
Vanderbilt Univ., Nashville, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE

Works referenced in this record:

On the development of proton conducting polymer membranes for hydrogen and methanol fuel cells
journal, April 2001

A degradation study of Nafion proton exchange membrane of PEM fuel cells
journal, June 2007

Mechanical behavior of fuel cell membranes under humidity cycles and effect of swelling anisotropy on the fatigue stresses
journal, July 2007
  • Kusoglu, Ahmet; Karlsson, Anette M.; Santare, Michael H.
  • Journal of Power Sources, Vol. 170, Issue 2, p. 345-358
  • DOI: 10.1016/j.jpowsour.2007.03.063

Performance of alkaline fuel cells: A possible future energy system?
journal, October 2006

Prospects for Alkaline Anion-Exchange Membranes in Low Temperature Fuel Cells
journal, October 2004

A Soluble and Highly Conductive Ionomer for High-Performance Hydroxide Exchange Membrane Fuel Cells
journal, August 2009
  • Gu, Shuang; Cai, Rui; Luo, Ting
  • Angewandte Chemie International Edition, Vol. 48, Issue 35, p. 6499-6502
  • DOI: 10.1002/anie.200806299

Developing a polysulfone-based alkaline anion exchange membrane for improved ionic conductivity
journal, April 2009

Anionic polysulfone ionomers and membranes containing fluorenyl groups for anionic fuel cells
journal, May 2009

A novel guanidinium grafted poly(aryl ether sulfone) for high-performance hydroxide exchange membranes
journal, September 2010
  • Zhang, Qiang; Li, Shenghai; Zhang, Suobo
  • Chemical Communications, Vol. 46, Issue 40, p. 7495-7497
  • DOI: 10.1039/C0CC01834A

Synthesis of multi-block poly(arylene ether sulfone) copolymer membrane with pendant quaternary ammonium groups for alkaline fuel cell
journal, May 2011

Poly(arylene ether sulfone)s ionomers with pendant quaternary ammonium groups for alkaline anion exchange membranes: Preparation and stability issues
journal, February 2011

Synthesis and Characterization of Poly(phenylene)-Based Anion Exchange Membranes for Alkaline Fuel Cells
journal, November 2009
  • Hibbs, Michael R.; Fujimoto, Cy H.; Cornelius, Christopher J.
  • Macromolecules, Vol. 42, Issue 21, p. 8316-8321
  • DOI: 10.1021/ma901538c

A review of PEM fuel cell durability: Degradation mechanisms and mitigation strategies
journal, September 2008

Mechanical response of fuel cell membranes subjected to a hygro-thermal cycle
journal, October 2006
  • Kusoglu, Ahmet; Karlsson, Anette M.; Santare, Michael H.
  • Journal of Power Sources, Vol. 161, Issue 2, p. 987-996
  • DOI: 10.1016/j.jpowsour.2006.05.020

Mechanical properties of Nafion™ electrolyte membranes under hydrated conditions
journal, November 2005

Counterion dependent crystallization kinetics in blends of a perfluorosulfonate ionomer with poly(vinylidene fluoride)
journal, October 2006

Chemically-modified Nafion®/poly(vinylidene fluoride) blend ionomers for proton exchange membrane fuel cells
journal, May 2003