What are the processes for lithium battery production

Lithium battery emergence production process flow and control: raw materials → raw material inspection → raw material pre-solving → ingredients → ingredient inspection → vacuum induction melting → rapid cooling ingot casting → semi-product inspection → thermal solution → coarse crushing → powder making → screening → after Solution→vacuum or nitrogen-filled packaging→product inspection→product. 1. Smelting: 1. The process requires the material supplier to supply the material list, and the QC part must be detected, and the composition and impurity content shall be processed for storage for use if the process requirements are satisfied. 2. The key to pre-solving raw materials is to remove contaminants and oxide layers on the surface of the raw materials to ensure the cleanliness of the raw materials. 3. The ingredients should be based on different conditions to make up for some volatile elements such as rare earth and manganese. 4. Vacuum induction smelting should be filled with argon gas under a vacuum of 0.1Pa, and each component metal is melted into an alloy at a high temperature of 1300, and then quickly cooled and casted to obtain an alloy with refined grains and an even arrangement. 2. Semi-finished products: 1. Appearance: the appearance of the alloy should have metallic luster, no obvious oxidation and discoloration, and the alloy arrangement should be evenly dense, free of looseness and impurities; 2. Chemical composition: the chemical composition of the alloy should be consistent with the design composition; 3. Electricity Chemical capacity: should be satisfied with the company's specifications, otherwise it cannot be transferred down. 3. Thermal solution: use a vacuum thermal solution furnace, and then fill it with argon for maintenance after vacuuming. The thermal solution process is critical to homogenize and stabilize the product (eliminate internal stress), ensure smooth channel pressure of the alloy, outstanding uniformity and outstanding cycle life characteristics. The main points are to ensure the temperature and vacuum, and do the oxygen content determination. 4. The whole process of alloy coarse crushing, powder making and packaging are all closed under argon maintenance to ensure that the oxygen content of the alloy is very low. In recent years, with the development of the domestic lithium battery industry, the skills, capital and scale of domestic lithium battery equipment manufacturers have been rapidly developed. Lithium battery equipment is a model for the localization of high-end automated equipment in my country. At present, my country's import substitution of lithium battery equipment is almost complete. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it.