Lithium batteries, the core of new energy vehicles, consumer electronics, and energy storage systems, rely heavily on the cleanliness and adhesion of their surfaces for performance and safety. Plasma surface treatment technology is becoming a key process in lithium battery manufacturing.

Electrode Treatment
Plasma cleaning removes residual contaminants and oxide layers on the electrode surface, improving electrolyte wettability, reducing interfacial impedance, and extending cycle life.

Separator Modification
Plasma can introduce polar functional groups, improving separator wettability and electrolyte absorption, while also enhancing ion conduction efficiency and battery consistency.

Tabs & Current Collectors
Plasma cleaning of current collectors, such as copper and aluminum foil, enhances welding/bonding strength, reduces contact resistance, and ensures stable current conduction.

Encapsulation & Coating
In soft-pack battery and module manufacturing, plasma treatment enhances the surface energy of aluminum-plastic films and adhesives, ensuring a tight seal. During the conformal coating pretreatment phase, it prevents delamination and bubbles, improving corrosion resistance and humidity and heat resistance.

From electrodes and separators to tabs and packaging, plasma technology ensures high cleanliness, high reliability, and long life in lithium battery manufacturing, contributing to comprehensive improvements in the safety and performance of new energy batteries.