Application of plasma treatment machine in new energy photovoltaic industry

Improve the adhesion of the blue film of the battery cell

Before assembling the battery cell, in order to prevent safety accidents of potassium batteries, it is generally necessary to apply glue to the potassium battery cell. In addition to the fixing function, the gluing can also play the role of insulation and heat dissipation to prevent short circuits, protect the circuit and prevent scratches. Plasma cleaning is performed on the front and back of the battery cell and the end plate to clean the dirt on the surface of the blue film of the battery cell, roughen the surface of the blue film of the battery cell, and improve the adhesion of gluing or gluing.

Aluminum shell of battery cell

With the rapid development of new energy vehicles, square shell battery cells are widely used in various new energy electric vehicle power battery modules as the most commonly used power module of new energy vehicles. Since the surface of the aluminum shell of the battery cell needs to be pasted with an insulating pad, the surface of the lithium battery module cell needs to use plasma cleaning equipment to clean the outer wall of the battery to ensure the flatness and accuracy of the posting. On the one hand, plasma cleaning can remove pollutants such as oil on the surface, and on the other hand, it can improve the surface energy of the aluminum shell and improve the adhesion between the adhesive and the surface to be adhered.

Tuppet ear cleaning before welding

During the process of leaving the factory, the tabs of the battery cells of the power battery of the automobile may be uneven, bent or even twisted, which may cause cold welding, false welding and short circuit during welding. After the tabs of the battery cell are leveled, cleaning the tab surface with a plasma cleaner can remove organic matter, tiny particles and other impurities, roughen the welding surface and improve the reliability of subsequent laser welding.