The coating line is one of the core processes in the front-end production of lithium batteries. Its main task is to evenly coat the slurry with good stability and appropriate viscosity on the surface of the metal foil to form positive and negative pole pieces. In this process, the coating accuracy directly affects the performance and safety of the battery. By capturing the surface image of the pole piece after coating with a high-resolution camera and combining it with advanced image processing algorithms, the system can automatically identify the uniformity of the coating, thickness consistency, and surface defects such as scratches, particles, bubbles, etc. This non-contact detection method not only improves the detection efficiency, but also avoids errors caused by human factors. In addition, the vision inspection system can also adjust the coating parameters in real time to ensure the stable and reliable quality of each batch of products.

The AVT vision inspection system is used in the slitting process of television pole pieces. Before slitting, full-width inspection can be performed on the A and B sides of the pole piece. According to the set slitting width, the horizontal inspection partitions are divided, and labeling machines are equipped in each partition. Once a defect is detected, the system will output a labeling signal to automatically mark the pole piece in the corresponding area. During the slitting process, factors such as changes in material tension and irregular patterns will cause deviations in the feeding. For this reason, the BVT vision inspection system is configured to perform online and precise measurement of the size of the material after slitting, and the measured size difference is linked to the web guiding system before slitting to adjust the correction reference, thereby effectively improving the accuracy of the slitting size.

Winding machine is one of the core equipment in the middle stage of lithium battery production. Its main task is to stack positive and negative electrode sheets, separators and other materials in turn and wind them into cylindrical or square cells. During the winding process, defects such as battery tab wrinkles and electrode misalignment will seriously affect the performance and safety of the battery.
The vision inspection system can accurately identify various defects on the pole piece and PE film coating, such as scratches, cracks, stains, foreign bodies, pinholes, dimensional deviations, etc. If these defects are not discovered in time, they will lead to a decline in lithium battery performance, shortened lifespan and even safety issues of lithium batteries. Through the real-time monitoring of the vision inspection system and the communication linkage control of the winding equipment, defective pole pieces or diaphragms can be discharged after a single roll, thereby reducing raw material waste, improving the overall product yield and effectively improving the equipment utilization rate.

The non-contact dust removal system combines the latest aerodynamics technology with a specific high-speed vacuum airflow and substrate ionization technology, and performs static elimination pre-treatment before cleaning to form a turnkey system.
The electrostatic charge on the substrate surface is a major factor that increases contamination and makes it more difficult to remove the paticle. Therefore, an electrostatic elimination system is always installed before the cleaning process to ensure that the substrate surface reaches a neutral state, making it easier to remove all particles.