1, anode slurry drawing: coating the anode material mixture on the metal foil in the form of slurry;
2, stretching the negative electrode paste: coating the negative electrode material mixture on the metal foil in the form of paste;
3. Positive plate: the coated positive metal foil is cut into small pieces with a specified size;
4. Negative plate: cut the coated negative metal foil into small pieces with specified size;
5. Assembly of steel case: Assemble the positive plate, negative plate and diaphragm into the steel case to form the initial structure of the battery;
6. Liquid injection and testing: inject electrolyte into the battery and conduct necessary testing to ensure the quality and safety of the battery;
7. Packaging: Complete the packaging of the battery to ensure the stability and safety of the battery.
In the production of lithium batteries, pole piece detection is one of the key technological links, which mainly involves the following equipment:
1, X-ray detection equipment (X-ray machine, industrial CT machine): used to detect defects and foreign bodies inside the pole piece;
2. Microscope inspection equipment: used to observe and inspect the surface quality of the pole piece, including appearance, size and morphology;
3. Machine vision inspection equipment: used to automatically detect and identify the appearance defects, size errors and position deviations of the pole pieces.
The detection accuracy and reliability of these devices are very important for the production of high-quality lithium batteries. In addition, there are other auxiliary equipment and tools for the production and testing of lithium batteries, such as stirring equipment, coating equipment, drying equipment, sealing equipment, etc. Hua has created a full-process solution for lithium batteries. Based on the process information, the defects of several core parts of power battery can be quickly understood and evaluated. Combined with the industry knowledge formed by the application of lithium battery industry projects, the whole process inspection requirements of lithium battery industry are precipitated into a set of conventional visual inspection solutions.