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Title: Advanced membrane electrode assemblies for fuel cells

Patent ·
OSTI ID:1176462

A method of preparing advanced membrane electrode assemblies (MEA) for use in fuel cells. A base polymer is selected for a base membrane. An electrode composition is selected to optimize properties exhibited by the membrane electrode assembly based on the selection of the base polymer. A property-tuning coating layer composition is selected based on compatibility with the base polymer and the electrode composition. A solvent is selected based on the interaction of the solvent with the base polymer and the property-tuning coating layer composition. The MEA is assembled by preparing the base membrane and then applying the property-tuning coating layer to form a composite membrane. Finally, a catalyst is applied to the composite membrane.

Research Organization:
Los Alamos National Security, LLC, Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-36
Assignee:
Los Alamos National Security, LLC (NM)
Patent Number(s):
8,227,147
Application Number:
11/113,678
OSTI ID:
1176462
Country of Publication:
United States
Language:
English

References (4)

Direct Methanol Fuel Cell Performance of Disulfonated Poly(arylene ether benzonitrile) Copolymers journal January 2004
New membranes for direct methanol fuel cells journal March 2002
Sulfonated poly(arylene ether sulfone) copolymer proton exchange membranes: composition and morphology effects on the methanol permeability journal November 2004
Proton Conductive Polyimide Electrolytes Containing Trifluoromethyl Groups:  Synthesis, Properties, and DMFC Performance journal June 2004