Galvanic bath, process for electrodeposition and use of a bipolar membrane for separation in a galvanic bath

摘要

The invention relates to an alkaline, galvanic bath for applying zinc or zinc alloys on substrates, in which the anode space and the cathode space are separated by a bipolar membrane. The electroplating bath is operated with zinc or zinc alloy baths, which may contain other additives. Furthermore, the invention relates to a method for the galvanic deposition of zinc or zinc alloys on substrates, in which the substrate is introduced into the galvanic bath according to the invention. Moreover, the invention relates to the use of bipolar membranes for the separation of anode space and cathode space in electroplating baths and to avoid the anodic decomposition of organic components of the electrolyte in electroplating baths.