As an important component of clean energy, lithium battery has attracted more and more attention to the automation of its production process. By integrating a variety of advanced technologies, the fully automatic integrated lithium battery production line realizes the automation of the whole process from raw material processing to finished product shipment, and improves the production efficiency and product quality. This article will discuss in detail the manufacturing method of fully automatic integrated lithium battery production line, including the technical points and implementation steps of each link.

I. Design and Planning

1. Design requirements of production line

before making the fully automatic integrated lithium battery production line, the design requirements of the production line need to be clarified first. This includes production capacity, product model, process flow, spatial layout, etc. The design team needs to fully communicate with customers and understand their production requirements to determine the appropriate production line specifications and configurations.

2. Process planning

the process of fully automatic integrated lithium battery production line usually includes raw material preparation, cell production, module assembly, charging test and packaging. The process steps and equipment selection of each link need to be designed in detail at the planning stage to ensure the efficient operation of the production line.

II. Equipment Selection and procurement

1. Key equipment

the fully automatic integrated lithium battery production line requires a variety of equipment, including:

• mixer: it is used to evenly mix raw materials such as positive electrode materials, negative electrode materials, adhesives, etc.
• Coating machine: coating the mixed slurry on the electrode substrate to form electrode plate.
• Drying box: used to remove the solvent in electrode plate after coating to ensure the dry state of the electrode.
• Burger patty press: Press the dried electrode plate to improve its density and conductivity.
• Coiler or lamination stacking machine: wrap or superimpose positive and negative electrode pieces and isolating membrane to form cell.
• Liquid injection machine: inject the electrolyte into cell to complete the assembly of cell.
• Test Equipment: it is used to test the charge and discharge of cell and modules to ensure their performance is up to standard.

2. Equipment Procurement

after determining the key equipment, it is necessary to purchase the equipment. When selecting suppliers, the technical level, after-sales service, price and other factors of their equipment should be considered to ensure that high-quality equipment is purchased.

III. Installation and debugging of production line

1. Equipment Installation

after the equipment procurement is completed, the installation work of the production line will start immediately. During the installation process, follow the installation manual provided by the equipment manufacturer to ensure the correct arrangement and connection of the equipment. At the same time, workers need to carry out safety training to ensure personal safety during installation.

2. System integration

after the device is installed, perform system integration. The fully automatic integrated lithium battery production line usually adopts PLC (programmable logic controller) or other automatic control systems to control each equipment in linkage. Through compiling the control program, the coordinated operation of each production link can be realized.

3. Debugging

after the system integration is completed, comprehensive debugging is required. During the debugging process, the operation of each equipment should be checked step by step to ensure its normal operation. Meanwhile,Test the automated running status of the entire production line to eliminate potential problems. After debugging is completed, small-scale trial production is carried out to verify the performance of the production line.

IV. Implementation of production process

1. Raw material preparation

before the production line is officially put into use, prepare the required raw materials, including positive electrode material, negative electrode material, isolating membrane, electrolyte, etc. Ensure that raw materials meet production standards to improve the quality of final products.

2. Cell production

in the cell production stage, the positive and negative electrode materials are mixed first, and then the slurry is evenly coated on the electrode substrate by coating machine. After coating, the electrode plate is dried by drying box, and then pressed by burger patty Press. Finally, the coiler and lamination stacking machine are wound or superimposed by using electrode plate or isolating membrane to form cell.

3. Module assembly

after the production is completed on cell, enter the module assembly process. Assemble multiple cell to form a battery module. In this process, you need to ensure stable connection between cell to avoid performance problems caused by poor linking.

4. Charging test

after the module is assembled, the charging test is performed. The battery module is charged and discharged through the test equipment to evaluate whether its performance meets the predetermined standard. In the process of testing, if unqualified products are found, they should be adjusted or removed in time.

5. Package shipment

after passing the test, the battery module is packaged. The packaging process should choose appropriate packaging materials to ensure that they will not be damaged during transportation. Finally, the qualified products will be shipped to customers or markets.

V. Maintenance and management of production line

fully automatic integration lithium battery production after the line is put into use, regular maintenance and management are crucial. Enterprises need to formulate detailed maintenance plans, including regular inspection, cleaning and troubleshooting of equipment. Through good maintenance and management, the service life of the equipment can be prolonged and the production efficiency can be improved.

The production method of fully automatic integrated lithium battery production line involves design and planning, equipment selection and procurement, installation and debugging, production process implementation, post-maintenance management and other links. Through reasonable planning and efficient implementation, enterprises can establish efficient and stable lithiumThe electric production system provides strong support to meet the market demand.