Patent ID: 6358393
Filing Date: 2002-03-19
Classification: C25C,Y10T

Abstract:
A cell for the production of aluminium by the electrolysis of an aluminium compound dissolved in a molten electrolyte, comprising an outer mechanical structure forming an outer shell one or more cathodes and an electric and thermic insulation separating the or each cathode from the outer shell, the outer shell and the electric and thermic insulation forming a recess that houses the or each cathode, the or each cathode comprising an inner electrically-conductive cathode holder supporting and substantially coextensive with a cathode mass, the cathode holder being connected electrically to a busbar, the or each cathode holder also serving to distribute current to its cathode mass, wherein the or each cathode holder and the thereon supported cathode mass are movable as an individual cathode unit within said recess for insertion therein and removal therefrom of said individual cathode unit.