Electrolysis cell and use thereof

摘要

An electrolysis cell has filled liquid electrolyte and oxidizing or reducing gas compartments, separated by a gas diffusion electrode on which an ion exchanging separator is formed (on the electrolyte side) by single- or multi-stage application of a solution of an ion exchanger material in a solvent, with at least partial evaporation of the solvent after each coating stage. An electrolysis cell for carrying out chemical reactions includes a liquid electrolyte compartment and an oxidizing or reducing gas compartment, having inlet and outlet lines for electrolyte and gas respectively. The two compartments each contain electrically conductive filler and are separated by a gas diffusion electrode (GDE), combined with an ion exchanging separator (IES) on the electrolyte side. A current collector for the GDE is provided. The filler in the electrolyte compartment serves as counter-electrode. The novel feature is that IES is applied to GDE by single- or multi-stage coating of the electro-catalytic layer of GDE with a solution of an ion exchanger material in a solvent, with at least partial evaporation of the solvent after each coating stage.