New energy lithium battery industry application

Lithium battery industry - surface treatment - ultrasonic spraying

Ultrasonic spraying is a technology used in the preparation of aluminum foil and copper foil coatings in the lithium battery industry. It can effectively improve the performance and life of the battery. This technology uses ultrasonic waves to spray the coating in an atomized state onto the surface of the substrate, thereby forming a uniform coating.

Ultrasonic spraying uses ultrasonic vibrations to produce fine spray particles, which are evenly applied to the surface of the aluminum or copper foil through a nozzle. Ultrasonic vibrations can evenly atomize the coating liquid, making the coating more uniform and more adherent.

● Uniformity: Ultrasonic spraying can form a very uniform coating on complex surfaces, reducing the problem of uneven coating thickness.

● Material saving: Due to the high energy utilization efficiency during the spraying process, there is less material waste.

● Improved performance: A uniform coating can improve the conductivity and chemical stability of lithium batteries, thereby improving the overall performance and life of the battery.

● Aluminum foil coating: In the negative electrode material of lithium batteries, aluminum foil usually needs to be coated with a conductive coating to improve the conductivity of the battery.

● Copper foil coating: As the positive electrode material of lithium batteries, the uniformity and adhesion of the copper foil coating directly affect the electrical performance and stability of the battery.

● Paint formulation: Ultrasonic spraying requires precise control of the paint formulation and viscosity to ensure the spraying effect.

● Equipment maintenance: Spraying equipment needs to be maintained regularly to ensure the stability of ultrasonic emission and the consistency of spray effect.