The non-polar electrolytic capacitor is mainly composed of a positive electrode (an oxide film composed of AL2O3), a negative electrode and an electrolyte, and its positive electrode has one-way conductivity, so it is not allowed to be reversed in use, otherwise it will soon be damaged or even explode. Usually the housing is marked with a positive or negative electrode. And in use can not pass a large ripple current,

It can not work in pure AC circuit.

The specific production process is as follows:

① Etching (expanding surface area)

The function of etching is to enlarge the surface area of the aluminum foil. Etching is an electrochemical process in which an alternating or direct current is applied to a chloride solution.

② formation (forming dielectric layer)

Formation is the process of forming a dielectric layer (Al2O3) on the surface of the anode aluminum foil. Generally the formed aluminum foil is used as the anode.

③ Tailoring

Cut aluminum foil (cathode foil and anode foil) and electrolytic paper to the required size according to the size requirements of different products

④ Winding

Insert the electrolytic paper between the cathode foil and the anode foil, then wind it into a cylindrical shape, and connect the terminals on the cathode foil and the anode foil on the winding process.

⑤ Immersion

Immersion is the process of immersing particles in an electrolyte. The electrolyte can further repair the dielectric layer.

⑥ Seal

Sealing is the process of sealing the element into the aluminum shell with a sealing material (rubber, rubber cap, etc.).

⑦ Aging (reformation)

Aging is the process of applying a voltage to a sealed capacitor at high temperatures. This process can repair some damage to the dielectric layer during cutting and winding.

⑧ Full inspection, packaging

After aging, all products are checked for electrical characteristics. And carry out terminal processing, braid and so on. Finally, packaging.

⑨ Shipment inspection

Conduct outgoing inspection according to product inspection standards.

⑩ shipping