What are the important processes in the processing of soft-packed lithium batteries?

Lithium battery manufacturers interpret the important process of soft-pack lithium battery processing. With the development of science and technology, the technical obstacles of lithium battery processing have been broken through. Soft-pack lithium batteries have gradually stepped onto the stage and entered a large-scale trial stage. The important processes of soft-pack lithium battery processing are pole piece, assembly and formation. ●Pole piece process The important purpose of the pole piece process is to manufacture the core components of the positive and negative electrodes, which are divided into four processes: homogenization, coating, rolling, and cutting. This process is all run in a fully automatic closed system to ensure environmental protection and safety in manufacturing. ●Assembly process The assembly process is to assemble the processed pole pieces into lithium battery cells. The process is divided into five steps: punching, lamination, welding, heat sealing, and injection. The first four steps are all physical assembly processes. , There will be no hazardous waste, and the whole process of the last step of liquid injection must be completed in a closed space. ●Formation process The formation process is mainly composed of four steps: aging, charging and discharging, vacuuming and testing and sorting. Aging is to leave the battery at room temperature or high temperature for a period of time so that the electrolyte is absorbed inside the lithium battery; charging and discharging is to charge the battery from an empty state to a fully charged state to activate the battery; vacuuming is to exhaust the inside of the battery To the vacuum state, the performance and shape of the soft-packed lithium battery are guaranteed; the test is a detailed inspection of the internal resistance, voltage, insulation and other aspects of the lithium battery by the detection system. 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 article: How to maintain the Ni-MH battery?