1 Failure modes and factors failure of aluminum electrolytic capacitors The positive and negative lead-out electrodes and shells of aluminum electrolytic capacitors are made of high-purity aluminum. The medium of aluminum electrolytic capacitors is an aluminum oxide film formed on the surface of the positive electrode. The real negative electrode is the electrolyte, which is equivalent [...]
🎇Low purity aluminum foil is used for the negative electrode. If the aluminum component does not reach the purity of 99.9%, based on cost considerations, it can still be used for cathode aluminum foil, because the purity of the cathode aluminum foil only needs to reach the level that it will not be corroded by the [...]
🔊The purity of electrolytic capacitor electrode aluminum foil listed in the standards of China, Japan, the United States and other countries is as follows. 🌟In addition to purity, high-purity aluminum foil with the same aluminum purity will also cause differences in capacitor performance due to different trace impurities. At the same time, it will also have [...]
🤚🏾 The electronic aluminum foil used in aluminum electrolytic capacitors, whether it is anode foil or cathode foil, requires the use of aluminum ingots to go through a complicated process to make foil materials. 🤚🏾 Generally, the cathode foil manufacturing process is relatively simple, as long as the continuous casting and rolling paperboard is used, and [...]
☀️The structural characteristics of electrolytic capacitors determine that it has the following characteristics in performance: ✨1. High specific capacitance： Since the anode of the electrolytic capacitor is manufactured by electrochemical corrosion technology or powder sintered porous block technology, it has a very high effective specific surface area. Secondly, the electrochemical anodic oxidation method is used to [...]