Patent ID: 8316917

Claim:
A method for forming a lead electrode, comprising: providing a batch of molten lead including calcium and tin; preparing a wash liquid comprising acetone, brass granules, carbon nanotube material, iron pyrite granules, and copper granules, mixed at high speed and strained; treating brass granules which including about 30% zinc with the wash liquid, and straining and drying the brass granules to form treated brass granules; treating iron pyrite granules with the wash liquid, and straining and drying the iron pyrite granules to form treated iron pyrite granules; treating copper granules with the wash liquid, and straining and drying the copper granules to form treated copper granules; adding the treated brass granules, the treated iron pyrite granules, and the treated copper granules to the molten lead; pouring the molten lead alloy into a pour mold coated with a thin layer of brass granules; allowing the lead to solidify into an ingot and then rolling the ingot in a pressure roller.