What is the process flow of lithium battery processing and manufacturing?

Lithium battery processing and manufacturing process The processing technology of lithium batteries is more complicated, and the important processing process mainly covers the stirring and coating stage of electrode production (front stage), the winding and liquid injection stage of battery cell synthesis (middle stage), and the packaging inspection of chemical packaging In the second stage (the latter stage), the value volume (purchasing amount) accounts for approximately (35~40%): (30~35)%: (30~35)%. The difference mainly comes from the difference of equipment suppliers, the difference in the ratio of imported/domestic products, etc. The process flow is basically the same, and the proportion of value is deviated but the overall proportion is in line with it. The lithium battery equipment corresponding to the first stage of lithium battery processing mainly includes vacuum mixer, coating machine, roller press, etc.; the middle stage mainly includes die cutting machine, winding machine, stacker, liquid injection machine, etc.; the latter stage includes forming machine , Divided capacity testing equipment, process warehousing logistics automation, etc. In addition, the processing of battery packs requires Pack automation equipment. The processing flow of lithium batteries is not very consistent for each manufacturer, but most of them are inseparable from these links, specifically as follows: The material is prepared for homogenization, coating, rolling, slitting, baking, winding into the shell, laser welding, baking, injection Liquid pre-filling, sealing, cleaning and aging are fully checked and shipped. Objectively speaking, the lithium battery processing process is divided into three sections, one is pole piece production, the other is battery cell production, and the third is battery packaging. In the lithium battery processing technology, the production of pole pieces is the foundation and the production of battery cells is the core, and battery packaging is related to the quality of the finished lithium battery. The specific steps of the lithium battery processing process include positive electrode slurry drawing, negative electrode slurry drawing, positive electrode sheet, negative electrode sheet, steel shell assembly, liquid injection and testing, and packaging. 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 mistakes in the use of UPS battery electrolyte?