Patent ID: 6113756
Filing Date: 2000-09-05
Classification: C25C

Abstract:
An electrolytic reduction cell for the production of a metal, comprising:an outer steel shell;a layer of insulating material adjacent the outer steel shell;a carbonaceous layer overlaying the insulating material and protecting the insulating material from an electrolytic bath to be contained in the cell, the carbonaceous layer including at least one carbonaceous cathode block having an upper surface and a lower surface, a plurality of electrical contact plugs being mounted in electrical contact with the lower surface of the cathode block; anda collector plate in electrical contact with the electrical contact plugs, and which includes means for connection to a source of electric current;wherein the electrical contact plugs are distributed over the lower surface of the cathode block such that in operation of the cell, a substantially isopotential surface is achieved at the top surface of the cathode block.