METHOD FOR PRODUCING GAS DIFFUSION ELECTRODES

摘要

The invention relates to a method for producing gas diffusion electrodes, which are particularly suited for use in electrolysis cells. The gas diffusion electrodes consist of a flat construction produced by rolling a powder mixture containing at least one catalyst or one catalyst mixture and one binder. According to a first preferred embodiment of the inventive method, the clamping force of the rollers is held constant during the rolling process of the powder mixture, whereby the clamping force is located between 0.2 kN/cm and 15 kN/cm. In a second preferred embodiment of the invention, the roller diameter is no larger than 15 cm. In a third preferred embodiment, the flat construction is connected to a catalyst support in an electrically conductive manner by rolling that involves a linear force ranging from 0.1 kN/cm to 2 kN/cm.