Oxygen-consuming electrode and process for the production thereof

A process for producing an oxygen-consuming electrode, comprising the steps of:

• a) precipitating silver oxide by simultaneously adding an aqueous NaOH solution and a silver nitrate solution to a receiver vessel, using a mechanical stirrer to introduce a stirring energy in the range from 0.01 W/l to 10 W/l, in the course of which the pH is kept constant within the range from pH 10 to 12 and the temperature is kept within a range from 20° C. to 80° C.,
• b) removing the precipitated silver oxide from step a) from the suspension,
• c) drying the silver oxide at a temperature in the range from 80° C. to 200° C., optionally under reduced pressure and optionally under inert gas atmosphere,
• d) further processing the resulting silver oxide with an electrically conductive carrier material, a catalyst comprising silver particles, and a finely divided fluorinated polymer to give a flat oxygen-consuming electrode.