Cathode layer structure for a solid polymer fuel cell and fuel cell incorporating such structure
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United States of America Patent
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Feb 19, 2008
Grant Date -
Feb 12, 2004
app pub date -
Oct 18, 2001
filing date -
Oct 27, 2000
priority date (Note) -
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Abstract
A cathode layer structure for a solid polymer fuel cell is disclosed. It comprises a composite cathode layer (48) of catalyst (11), anion ion conducting polymer (12) and cation conducting polymer (14). The interface between the anion ion conducting polymer (12) and the cation conducting polymer (14) is located entirely within the cathode layer (48). In particular the catalyst (11) is embedded in the anion conducting polymer (12), and the cation conducting polymer (14) encloses regions of the anion conducting polymer (12).
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