Gas diffusion electrode with catalyst for an electrochemical cell with solid electrolyte and method for making such an electrode
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United States of America Patent
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Oct 1, 1996
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N/A
app pub date -
Jun 5, 1995
filing date -
Jun 7, 1994
priority date (Note) -
Expired
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Abstract
Gas diffusion electrode with catalyst for an electrochemical cell with solid electrolyte, in particular for a fuel cell with solid electrolyte, which electrode contains a hydrophobic, porous back support (12), a non-catalytic intermediate layer (13) which contains electron conductive material and an active catalytic layer (14) which contains bound catalyst particles, characterized in that the intermediate layer (14) contains a mixture of electron conductive material and a proton conductive ionomer, and in that the active layer (14) forms the outside layer and the catalyst particles are bound by a proton conductive ionomer
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