Electronic aluminum foil, also known as electronic foil and light foil, is an aluminum foil processed by a series of rolling, cleaning and cutting processes of high-purity aluminum ingots. It is a key raw material for the production of aluminum electrolytic capacitors. After the aluminum material is processed into foil, the electronic aluminum foil undergoes surface corrosion treatment and re-oxidation treatment, and then is wound to make a capacitor.
The aluminum foil after corrosion of electronic aluminum foil is called corrosion foil, and the aluminum foil after re-oxidation treatment is called chemical foil. Electronic aluminum foil can be divided into high-voltage anode foil, low-voltage anode foil, negative electrode foil, etc. The high-voltage anode foil is corroded like pillar holes, the low-voltage anode foil is corroded like sponge, and the anode foil in the medium-voltage section is corroded like moths.
