Under the action of DC electric field, Cu2+ions are electrodeposited on the roller shaped negative electrode (cathode roll), and this layer of electrodeposition is called electrolytic copper foil.
The electrolytic copper foil in this state can be finished only after all or part of the process steps such as stripping, cleaning, roughening, curing, passivation, drying and slitting are carried out according to various requirements of different customers.
