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Title: Advanced membrane electrode assemblies for fuel cells

Patent ·
OSTI ID:1126421

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 Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Number(s):
8,658,329
Application Number:
13/528,457
OSTI ID:
1126421
Country of Publication:
United States
Language:
English

References (4)

Integral multi-layered ion-exchange composite membranes patent October 2000
Ion-conducting sulfonated polymeric materials patent-application July 2002
Sulfonated polymer composition for forming fuel cell electrodes patent-application February 2006
Polymeric laminates, processes for producing the same, and use thereof patent-application July 2006