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electronic foil for electrolytic capacitors

Date: 2019-08-30 16:39

Electrolytic capacitors are one of the indispensable components in electrical products. Aluminum electrolytic capacitors are rapidly developed due to their excellent performance, low price and wide application. The use of electronic foil is also more extensive. Let you know about electronic foil and aluminum electrolytic capacitors.

The electronic foil is the working medium for aluminum electrolytic capacitors:

The electronic foil is the working medium of aluminum electrolytic capacitors. It forms an extremely thin layer of aluminum oxide (Al2O3) on the surface of the electronic foil by anodizing. The oxide dielectric layer and the anode of the capacitor are combined into a complete system. They are interdependent and cannot be independent of each other; we usually refer to capacitors whose electrodes and dielectrics are independent of each other. The anode of an aluminum electrolytic capacitor is an electronic aluminum foil whose surface forms an Al2O3 dielectric layer. The cathode is not a negative foil that we are accustomed to, but an electrolyte of a capacitor.
 

electrolytic capacitors

Electronic foil In electrolytic capacitors:

The electronic foil functions as an electrical lead in the electrolytic capacitor because the electrolyte as the cathode of the electrolytic capacitor cannot be directly connected to the external circuit, and the electrical path must be formed by the other metal electrode and other parts of the circuit. The anode aluminum foil and the cathode aluminum foil of the aluminum electrolytic capacitor are usually electronic foils, and the actual surface area is much larger than the apparent surface area, which is also a reason why the aluminum electrolytic capacitor usually has a large capacitance. Due to the use of electronic foils with numerous micro-etched holes, liquid electrolytes are often required to make more efficient use of their actual electrode area. Since the dielectric oxide film of the aluminum electrolytic capacitor is obtained by anodizing and its thickness is proportional to the voltage applied by the anodization, in principle, the thickness of the dielectric foil of the aluminum electrolytic capacitor can be artificially precise. control.
 

electronic foil

Mingtai Aluminum is a manufacturer of aluminum foil raw materials for electrolytic capacitors. The electronic foil produced by the company has the advantages of good electrical conductivity, high elongation and long service life. It is a supplier of electronic foil raw materials for various electrolytic capacitor manufacturers at home and abroad. .

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