aaa battery.Lithium battery processing equipment and manufacturing process

　　Lithium battery processing equipment and manufacturing process. Lithium batteries have different structural forms and different materials. The processes are similar, but the equipment requires new configurations. Currently, the lithium batteries used more in the market are mainly lithium iron phosphate batteries and ternary lithium batteries. The cathode raw materials of the two are quite different, and the production process is relatively different. Close but the process parameters need to vary greatly. For lithium battery manufacturers, large areas of equipment on the production line need to be replaced.

　　What are the lithium battery processing equipment?

　　Efforts in processing and manufacturing lithium battery materials to improve performance and manage inevitable volume changes have resulted in composite materials with micron- and nanoscale particles. Nanoparticles can adapt to volume changes with minimal risk of crack initiation, and their microscale agglomerates and complexes result in minimal diffusion path lengths through slowly diffusing phases. The focus is on packing density to maximize active material content, open pores to access the electrolyte, and electronic continuity to ensure charge exchange in the current exchanger.

　　Lithium battery assembly production and processing technology is very strict and complex. Different types of lithium batteries have different production processes and countless production equipment. Lithium battery production and processing equipment includes mushroom bulbing machines, blast ovens, vacuum ovens, vacuum mixers, coating machines, sheeting machines, slitting machines, slitting machines, riveting machines, rolling machines, heating shaping machines, and Shell centrifuge, automatic vacuum injection machine, vacuum sealing machine, automatic steel ball sealing machine, spot welding machine, tunnel furnace, current, voltage, resistance tester, Hiba pump.

　　Procedures for lithium battery processing and production equipment

　　(1) Special solvents and binders are used for slurry mixing with powdered positive and negative electrode active materials respectively, and after uniform mixing at high speed, slurry-like positive and negative electrode materials are made.

　　(2) Coating film: Apply the prepared slurry evenly on the surface of the metal foil, dry it, and make positive and negative electrode plates respectively.

　　(3) Assemble in the order of positive electrode sheet - separator - negative electrode sheet - separator from top to bottom, and then roll it into the battery pole core, and then go through processes such as injecting electrolyte and sealing to complete the battery. The assembly process creates the finished battery.

　　(4) Chemical formation uses special lithium battery charging and discharging equipment to conduct charge and discharge tests on the finished batteries. Each battery is tested and qualified finished batteries are screened out before leaving the factory.

　　There are many types of lithium battery processing and production equipment. Complete sets of material battery (cell production) equipment cost tens of millions of yuan. Complete sets of lithium battery pack assembly equipment range from 20,000 yuan to several million. There are automatic equipment. You can choose according to your own needs.

　　Lithium battery processing equipment has different configurations according to the raw materials that need to be processed. The output required by the user is different and the price ranges. Another point is that it is equipped with the user's existing factory and equipment. The price of a complete set of small lithium battery assembly and processing equipment ranges from several thousand to It ranges from tens of thousands, and the manufacturer cannot quote without knowing anything about it. For details, you need to contact the staff of the lithium battery manufacturer. I hope it can be helpful to you.

　　Lithium battery production and manufacturing process

　　The production process of lithium batteries is relatively complex. The main production process mainly covers the stirring and coating stage of electrode production (front stage), the winding liquid injection stage of cell synthesis (middle stage), and the packaging and testing stage of chemical encapsulation (back stage). The proportion of value (purchase amount) is approximately (35~40%): (30~35)%: (30~35)%. The differences mainly come from different equipment suppliers, differences in the proportion of imported/domestic products, etc. The process flow is basically the same, and the value ratio is biased but generally consistent with the ratio.

　　The lithium battery equipment corresponding to the front-end process of lithium battery production mainly includes vacuum mixers, coating machines, roller presses, etc.; the middle-stage process mainly includes die-cutting machines, winding machines, laminating machines, liquid injection machines, etc.; the back-stage process includes formation machines. , volumetric testing equipment, process warehousing and logistics automation, etc. In addition, the production of battery packs also requires Pack automation equipment.

　　The production process of lithium batteries is not very consistent for each manufacturer, but most of them are inseparable from these links. Specifically, they are as follows: material preparation-homogenization-coating-rolling-slitting-baking. Baking - winding - shelling - laser welding - baking - liquid injection - pre-filling - sealing - cleaning - aging - full inspection - warehousing - shipping.

　　Objectively speaking, the lithium battery production process is divided into three major sections, one is pole piece production, the other is cell production, and the third is battery assembly. In the lithium battery production process, pole piece production is the foundation, battery core production is the core, and battery assembly is related to the quality of the finished lithium battery. The specific steps of the lithium battery production process include positive electrode slurrying, negative electrode slurrying, positive electrode sheets, negative electrode sheets, steel case assembly, liquid injection and testing, and packaging.

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