Analysis of the packaging method and process of lithium batteries for electric vehicles

The red wire of the power cord socket is fixed to the first red connector with a preheated electric soldering iron and solder, and then a battery connection wire is used to connect the first battery with solder, and the blue connector is connected to the second red connector. . Then connect the third block by analogy, and the fourth block has a blue connector at the end. Finally, connect the last blue connector with the black wire of the power jack. The first step: the ingredients are mixed with high vacuum and fully automatic materials for 10 hours, and the materials required for the lithium battery pack of electric vehicles are evenly dispersed, so as to improve the consistency and comprehensive performance of the battery. The second step: the coating adopts an automatic feeding system, an automatic knife adjustment system, and an online thickness measurement system to coat the positive and negative plates evenly. The third step: After coating the positive and negative electrodes of the roll, the positive and negative materials are relatively loose, and a certain pressure must be applied to the pole pieces to compact the positive and negative materials to a certain range. Step 4: Slicing According to the model of the lithium battery pack, the positive and negative plates should be cut into the required width. Such as 18650 lithium battery, the width of the pole piece is within 56-58mm. Step 5: Using a fully automatic tablet machine for film making and winding, weld the positive and negative lugs to the positive and negative plates. A fully automatic winding machine is used to wind the positive and negative plates and the separator into a cylindrical shape. Step 6: Put the bottom rolling groove and vacuum drying core into the steel shell, automatically weld the negative lug, and automatically roll the groove. In addition, after high-vacuum and high-temperature baking, a small amount of moisture is dried, so that the performance of the lithium battery pack for electric vehicles can be guaranteed. Step 7: Before shipment, the chemical composition of the lithium battery must be charged and discharged. The battery is in a little state before leaving the factory. The eighth step: Assemble the full-automatic welding machine for lithium batteries, weld the connecting pieces of multiple lithium battery packs together, then install the circuit board, perform aging detection, and inspect the shipment. 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: What are the maintenance methods for lithium battery packs?