The manufacturing of electrolytic copper foil mainly includes two processes: raw foil production and surface treatment. Raw foil production is achieved through electrolysis, using a specific electrolyte solution with high-purity copper as the anode and a stainless steel or titanium plate as the cathode. Copper foil is formed by electrolytic deposition onto the cathode. Surface treatment includes processes such as roughening, curing, and passivation to improve the adhesion and corrosion resistance of the copper foil.
