Detailed explanation of lithium battery pole piece rolling technology method

1. Turn on the power switch of the pole piece rolling equipment, and wipe the steel roller with a cloth dipped in alcohol. The requirements are as follows before turning on the equipment. 1. Before turning on the power, check that the emergency stop switch maintains the on-state. 2. The surface of the steel roller should be dry, clean, free of grease and particles. The steel roller must be wiped before rolling. 2. Adjust the gap between the steel rollers according to the pole piece rolling process requirements of the battery model. The rolling parameters of different battery models are different, so I won’t talk about it in detail here, but it is required to debug in the rolling During the process, pay attention to the stroke of the servo motor to avoid locking. Operation interface of pole piece rolling equipment 3. Take a proper pole piece and roll it, measure its thickness, and verify the steel roll gap. The requirements are as follows: 1. The steel roll gap is adjusted to the range of process requirements. 2. The micrometer should be balanced with the pole piece during measurement. Measure and debug the pole piece when rolling. Fourth, put the roll material into the unwinding shaft, adjust it to the proper position, fix it with air expansion, and then put the pole piece between the gap between the two rolls. Requirements: The pole piece must be parallel before and after the roll is unwinding. Hang the pole piece side in the air, let alone tilt it. Inflatable fixing of the pole piece roll material. 5. Cut the empty foil on the edge of the roll material according to the process requirements. The upper and lower positions of the cutter are required to be fixed firmly. Rolling pole piece roll trimming 6. Turn on the tension system and automatic correction system before rolling, pay attention to adjust the tension properly, not too loose or too tight, after adjusting the pole piece roll tension, it must be confirmed with the process and quality . The expansion system and correction system of the pole piece rolling machine 7. The thickness of the pole piece rolling must be measured many times to avoid thickness control during the rolling process. The important requirements are as follows: 1. When measuring, pay attention to the micrometer and the pole piece perpendicular to each other. . 2. The speed of hand movement during measurement requires that the pole piece transmission speed is known, so as not to scratch the pole piece. When rolling, the thickness of the pole piece must be measured at any time. 8. After the roll is rolled, the surface of the steel roller should be wiped. It is required to wipe the surface of the steel roller with a cloth dipped in alcohol, and then wipe the surface with anti-rust oil after the dirt has gone out. The equipment should be cleaned after the lithium battery pole piece is rolled. Finally, it is best to separate the equipment and the area when the lithium battery positive and negative pole pieces are rolled. It can be distinguished by the positive and negative rollers. When there is no condition to use one roller It must be cleaned, the rolled pole pieces will have moisture, and they must be put in the oven for baking in time. Disclaimer: The articles published on this website are all from the Internet. If there is any infringement, please contact to delete it. Disclaimer: Some pictures and content of articles published on this site are from the Internet, if there is any infringement, please contact to delete. Previous: Simple analysis on lithium batteries