In the battery manufacturing process, the battery film coater is a very important equipment, which undertakes the key task of evenly coating specific materials on the battery film, and has a profound impact on the performance of the battery.
The working principle of the battery film coating machine is to use a mechanical device to evenly coat the coating on the battery film substrate in continuous operation through a specific coating method, such as scraper coating, roll coating or slit coating. Taking the scraper coating as an example, the scraper is close to the film, and the amount of coating is precisely controlled by adjusting the gap and pressure between the scraper and the film, so as to ensure the uniform thickness of the coating.
From the perspective of structure, it is mainly composed of a winding device, a coating device, a drying device, a winding device and a control system. The unwinding device is responsible for releasing the film substrate smoothly; The coating device is the core component, which determines the way and quality of coating. The drying device can quickly remove the solvent in the coating by means of hot air circulation or infrared ray, so that the coating can be dried and cured quickly. The winding device neatly wraps the coated and dried film; The control system precisely regulates the operating parameters of each device to ensure the stability and order of the entire coating process.
Battery film coater offers a number of performance advantages. First, the coating accuracy is high, and the coating thickness can be accurately controlled at the micron or even nanometer level, meeting the strict requirements of high-performance batteries for thin film coatings. Second, the production efficiency is high, continuous production can be achieved, and the production capacity is greatly increased. Third, strong adaptability, can be applied to different materials of battery film and various types of coatings, high flexibility.
In terms of application scenarios, it is widely used in the production of various types of batteries, such as lithium-ion batteries, sodium-ion batteries, zinc-ion batteries, etc. In the production of lithium-ion batteries, the charge and discharge performance and cycle life of batteries are effectively improved by accurately coating electrode materials. It also plays an indispensable role in the development and production of emerging sodium-ion batteries and zinc-ion batteries, helping the development and application of new battery technologies.
In short, the battery film coating machine with its key role and excellent performance, has become an important equipment to promote the development of the battery industry.
