Dry method of making a gas diffusion electrode
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United States of America Patent
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Issued Date -
Jan 29, 2009
app pub date -
Jul 27, 2007
filing date -
Jul 27, 2007
priority date (Note) -
Abandoned
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Abstract
A substantially dry method of making a gas diffusion electrode such as, e.g., an air cathode for a fuel cell or a metal-air battery cell. The method comprises forming an intimate mixture of catalytically active carbon particles and particles of a wet-proofing agent into a web; combining under pressure the web of with a current collector to form a current collector-web composite; and attaching a porous sheet of a fluorinated polymer to one side of the current collector-web composite of to form an air cathode. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
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