Electrochemical corrosion of aluminum foil

Electrochemical corrosion of aluminum foil is a product made of special high-purity aluminum foil that expands the surface area after electrochemical or chemical corrosion, and then forms a layer of oxide film (aluminum oxide) on the surface through electrochemical formation. According to the voltage, the aluminum foil is generally divided into four types: extremely low voltage, low voltage, medium high voltage and high voltage. According to the thickness, ranging from 25-110 microns; according to the use, there are positive foils and negative foils, and there are also guide foils. The use of foil is very narrow and can only be used as aluminum electrolytic capacitors. However, capacitors are widely used.


 
The improvement of the purity of the Electrochemical corrosion of aluminum foil

 of course, has a good impact on the improvement of the quality of the electrode foil, but on the other hand, the cost is increasing. At the same time, the corrosive medium is constantly changing, the concentration of some medium is increasing, and the type of medium is changing, all of which are not conducive to environmental protection work, resulting in heavy environmental protection tasks for production enterprises, which may require the purity of aluminum to be reduced. From the latest composition analysis of Japanese aluminum foil, it is found that there is a trend in this regard.
 
Not long ago, the research project of high-voltage Electrochemical corrosion of aluminum foil of Henan Signi Aluminum Industry was successfully developed, and the product quality has reached the international advanced level, which can completely replace imports. It should be said that after more than 10 years of development, especially in the past five or six years, the quality of China's electronic aluminum foil has been greatly improved.