Patent ID: 7465379

Claim:
An arrangement of at least one structural element for use in an electrolysis cell for production of aluminum metal from a component containing aluminum in a fused salt, where the component containing aluminum is mainly alumina and the fused salt is mainly based on mixtures of NaF and AlF 3 and CaF 2 , possibly plus alkali and alkaline earth halides, wherein the structural element is arranged in the electrolysis cell lining, and the structural element is plate shaped and made out of a material resistant to a corrosive environment in the cell, and further having a system of ducts formed directly in it and thereby constituting an integral part of the structural element, said ducts being arranged for the through-flow of a medium and further designed so that they can be used for active control of the side layer's thickness and heat transfer through the cell lining, and said ducts are connected to an outer circuit.