1.Material Preparation: The raw materials required for lithium battery production include lithium-ion electrolyte, anode and cathode active materials, conductive additives, binders, and solvents. These materials need to be mixed and processed according to precise formulations and specifications to ensure consistent battery performance.
2.Electrode Manufacturing: The anode and cathode electrodes are typically produced using a roll-to-roll process, where a continuous roll of electrode material is coated with an active material slurry and dried to form a thin layer. The electrodes are then cut into individual pieces and assembled into the final battery cell.
3.Cell Assembly: In this stage, the anode and cathode electrodes are combined with a separator and electrolyte to form a battery cell. The cell is then sealed in a protective casing to prevent leakage and contamination.
4.Battery Testing: The final step is to test the batteries for quality and performance. This typically involves measuring the capacity, voltage, and internal resistance of the battery, as well as conducting safety tests to ensure the battery does not overheat or catch fire.
In addition to these core stages, a lithium battery production line may also include other auxiliary processes, such as recycling of scrap materials, quality control and inspection, and packaging and labeling of finished products. The entire production line is typically highly automated to minimize human error and ensure consistent quality and performance of the batteries.