1.Aluminum electrolytic capacitors Aluminum electrolytic capacitors are made of anode aluminum foil, electrolytic paper, cathode aluminum foil, electrolytic paper, etc., which are stacked and wound in 4 layers; after the core is impregnated with electrolyte, it is sealed with an aluminum shell and a plastic cover to form an electrolytic capacitor 2.Conductive polymer solid capacitor Improve the performance of various electrical appliances while effectively solving the problems of electrolyte evaporation, leakage, and flammability 3.Super capacitor The supercapacitor is a new type of component that stores energy through the interface double layer formed between the electrode and the electrolyte.