Method for the electrolysis of alkali chlorides with oxygen consumption electrodes with openings

摘要

The oxygen-consuming electrode has a micro-gap configuration with a carrier element that is made in the form of a sheet-like structure and a coating portion. The coating portion is provided with a gas diffusion layer and a catalytically active component. The gas diffusion layer is provided with one or more apertures having specific diameter or height. The total area of the apertures in relation to the side of the electrode which is to face the ion exchange membrane is 0.05-15% of the electrode area. An independent claim is included for method for conducting chloralkali electrolysis with electrolysis cell.