Electric Vehicles Battery Copper Foil is a key material in increasing total vehicle mileage and densifying batteries. TUCO Alloy's high-performance battery copper foils are produced via a unique manufacturing process that involves dissolving, electroplating, and roll slitting. Ranging in thickness from 4μm to 12μm, our ED Cu foils are reputed for their performance characteristics, including exceptional tensile strength and increased elongation.

Electric Vehicles Battery Copper Foil Manufacturing Process

Electrolytic refinement: Starting with pure copper to minimize impurities.

Casting and rolling: Copper is cast into slabs and rolled repeatedly until it reaches a thickness of just a few micrometers.

Surface treatment: The foil is roughened or chemically treated to improve adhesion with electrode materials.

Coating (for composite foils): Occasionally, a conductive or carbon coating is applied to enhance conductivity and battery performance.