Abstract:With application of 300 kA double steel bar aluminium electrolytic cell with new shaped cathode, flow of aluminum liquid, current level of aluminum liquid, waveform amplitude of interface deformation between aluminum liquid and electrolyte are effectively reduced, stability of electrolyser is improved, and working polar distance of electrolyser is shortened. Based on a steady and efficient production, the current efficiency of new aluminium electrolytic cell is one percent higher than that of the normal one while the power consumption of per tonnage is lower by 400 kWh than that of the normal one.