Rounding out 18650 lithium-ion battery production process

Source: 2020 - 04 - 19 clicks: mark time step 11 process teach you do 18650 lithium batteries: 18650 lithium battery production process including battery material composition, coating all battery, battery roller, automatic cutting, automatic production process, such as batteries, 18650 lithium-ion battery production process and packing, rabin, battery capacity, battery test and so on, it will introduce to you one by one. The first process: ingredients. Choose top industry, high efficiency, stable operation and accurate operating domestic leading dual planetary vacuum stirring equipment. By spinning and rotating, stirring device can mixture of solid and liquid in the vacuum environment, so as to achieve stable grout, has the good performance. The second process: the coating. Industry leading process equipment, through the operating system and calibration system, ventilation system, heating system, match the size of the steady uniform coating on the surface of metal foil, choose the industry leading manufacturers, coating thickness changes in the 2 micron ( An industry leading position) , imported servo motor, guarantee the accuracy of coating, the ability to better meet customer demand. Lithium battery coater third process: roll. Using esr ingot 1200 mm in diameter, adoption, chromium, tungsten, manganese, lithium, vanadium alloy steel, through induction hardening and laser processing technology, to realize the output can be as high as 300 tons of superhigh pressure and sheet thickness control in & plusmn; 1μ M high precision roller, fully meet the requirements of power battery pole piece processing standards, in the industry's leading position. The fourth process: automatic cutting. In the process of lithium-ion battery production, is the cathode intermittent cladding is a continuous cutting and compounding. Tool blade roller cutting method, adopting advanced technology at home and abroad. After cutting, plate edge, no powder and burr, ensure the security and stability of battery. The cutting speed can be up to 50 m/min, equipment precision and efficiency are in a leading position in the industry. 18650 lithium batteries fully automatic slicing machine procedure 5: automatic production and cutting. High degree of automation equipment, is equipped with industry-leading super welding equipment, can be committed to the energy, ratio, energy storage, high low temperature performance of lithium ion battery cathode production, rolling and tension control, process automatic volume automatically shut down, send a ears, welding pole ear, stick tape, reduce manual welding of ear plate is damaged, scratched, welding and other security hidden danger, greatly improving the accuracy and efficiency of production. Procedure: 6 battery winding. Using industry leading automatic winding equipment, the equipment will be diaphragm and has a good ear continuous welding welding pole is negative, and the system has the function of automatic correction, control tension, low friction cylinder dust on the surface of the pole piece, iron filings, cutter clastic effective processing, the diaphragm electrostatic treatment, in the short circuit test of products, through the optical fiber detection system for all kinds of bad state of the sheet to identify and select, make full use of the winding time for each station, so as to achieve high efficiency, good effect of core winding, winding the purpose of stable quality. 18650 lithium battery winding machine procedure: 7 batteries into the shell channeling. Using industrial equipment manufacturers and intellectual property rights, the entire line to the cell, shell, negative automatic spot welding, the welding deformation of automatic detection and automatic roll groove and glue, automatic sorting by detecting system short circuit batteries, and thus to minimize damage caused by internal industry core winding humans into the shell, and virtual welding, greatly shorten the battery production period, avoid battery water absorption. Step 8: battery baking. Automatic oven adopts patent research and development, production, sales for the integration of brand manufacturers, drying oven with high safety, good air tightness, temperature setting error and measurement error & le; ± 1 ℃, the temperature value in a short period of time, better to remove some of the moisture inside the roller core. Program 9: cell injection/laser welding. Glove box of dehumidification with external dehumidifier. Glove box desiccant temperature below - 70℃( Relative humidity is less than 1%) The dew point temperature - and far superior to industry 35℃。 Injection pump adopts high precision electronic injection pump, ceramic core has a high precision, long life, corrosion resistance, abrasion resistance, maintenance is convenient wait for a characteristic, can reasonably and accurately to ensure the amount of electrolyte. Laser welding equipment using some high and new technology enterprise in wuhan. The anode ear and end cover firm welding, laser welding is used to avoid the virtual welding. Step 10: component capacity automatic detection system. Equipment imported chips and switch power supply, through the PLC programming realize automatic control of current and voltage. Programmable current precision can reach & plusmn; 0. 002 a, voltage accuracy for & plusmn; 0. 001 v, which can better meet the requirements of customers on voltage and voltage stability. A process with automatic detection system element size 10: shipment inspection sorting equipment. Imported internal resistance tester, voltage and resistance can be controlled at 0. 001 V and 0. 1 Ω, ensure customer group distribution, also can better improve the more complex solutions for our clients.