Lithium battery production and manufacturing process
Lithium batteries are divided into square batteries, cylindrical batteries and soft pack batteries from the packaging form. Different packaging forms mean different characteristics. In the process of cell winding, the soft pack battery is laminated, the cylindrical battery is wound, and the rectangular battery is wound and laminated.
The production of lithium batteries includes three major parts: pole piece manufacturing, cell manufacturing and battery assembly. At present, the main cleaning methods of lithium batteries are laser and mechanical methods, which will not only oxidize the foil and damage the light transmission, but also increase the impedance of the cleaning area and affect the welding effect. During the cleaning process, the cleaning object will have a thermal effect to destroy the coating itself. structure, which in turn generates vibrational waves, which may result in an explosion.
The dry cleaning method of plasma cleaning equipment can not only remove impurities such as organic matter and tiny particles on the surface, but also roughen the surface of the cell, improve the wettability of the surface of the metal film, and improve the uniformity of the coating, which is conducive to improving thermal stability. , safety and reliability.
