Fuel cell including a single sheet of a polymer electrolyte membrane (PEM), the PEM being divided into regions of varying electrical and ionic conductivity
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United States of America Patent
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Jul 21, 1998
Issued Date -
N/A
app pub date -
Nov 5, 1996
filing date -
Oct 6, 1994
priority date (Note) -
Expired
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Abstract
A fuel cell is provided including a single sheet film or ribbon of any leh of a Polymer Electrolyte Membrane ('PEM') wherein the PEM is divided into regions or zones of varying electrical conductivity and ionic conductivity, allowing the elimination of endplates and/or a bipolar configuration. In this non bipolar arrangement, means are provided for distributing fuel to only one side of the PEM and oxidant to only the other side of the PEM so as to prevent mixing of the fuel and oxidant.
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