Improved gas diffusion electrodes and method for their production

Oxygen-consuming electrode comprises at least one carrier in form of a sheet, and a coating with a gas diffusion layer and a catalytically active component. A one side of the oxygen-consuming electrode, faces the liquid or an ion exchange membrane during operation. The electrode further comprises a...

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Bibliographische Detailangaben
Hauptverfasser:	KINTRUP, JUERGEN, KARPENKO, ALEXANDER, BULAN, ANDREAS, ASMANN, JENS, SCHMITZ, NORBERT
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	Oxygen-consuming electrode comprises at least one carrier in form of a sheet, and a coating with a gas diffusion layer and a catalytically active component. A one side of the oxygen-consuming electrode, faces the liquid or an ion exchange membrane during operation. The electrode further comprises a finely divided hydrophilic component with an average particle diameter of 20-100 nm, preferably 50-70 nm. An independent claim is also included for preparing the oxygen-consuming electrode, comprising applying or spraying the finely divided, hydrophilic component in a form of suspension (0.1-50 wt.%, preferably 1-20 wt.%) on a planar raw electrode, and removing the suspending agent by evaporation.