Systems and methods for purifying aluminum

An aluminum electrolysis cell comprising:

• (a) a base;
• (b) a bottom located proximal the base, wherein the bottom comprises an upper surface and a lower surface, wherein the upper surface of the bottom comprises a slope;
• (c) an anode connector in electrical communication with the lower surface of the bottom, wherein the anode connector comprises an outer end configured to connect to an external power source;
• (d) at least one an elongate vertical anode extending upward from the upper surface of the bottom;
• (e) a cathode connector proximal a top cover, wherein the cathode connector has an upper connection rod and a lower surface, wherein the upper connection rod is configured to connect to the external power source;
• (f) at least one elongate vertical cathode extending downward from the lower surface of the cathode connector, wherein at least some of the elongate vertical cathodes overlap with the elongate vertical anodes such that distal ends of the elongate vertical cathodes are proximal middle portions of corresponding elongate vertical anodes.