What are the structures of lifepo4 18650 battery? What is its production and processing process?

　　The structure of lithium battery

　　The structure of lithium battery is divided into five parts, namely positive electrode, negative electrode, separator, electrolyte and casing.

　　1. Positive electrode

　　Among the overall constituent materials of lifepo4 18650 battery, positive electrode materials occupy a larger proportion, and the mass ratio of positive and negative electrode materials is 3:1~4:1. Because the performance of the cathode material directly affects the performance of the lithium battery, its cost also directly determines the cost of the battery.

　　The cathode material contains active materials, conductive agents, solvents, binders, matrix and other substances.

　　2. Negative pole

　　Lithium battery anode materials hold the lifeblood of power battery safety. Among lithium battery anode materials, in addition to graphitized mesocarbon microspheres (MCMB), amorphous carbon, silicon or tin, which occupy a small market share, natural graphite and artificial graphite Occupying more than 90% of the anode material market share.

　　The negative electrode material contains active materials, binders, solvents, matrix and other substances.

　　3. Diaphragm

　　The main function of the separator is to separate the positive and negative electrodes of the battery to prevent the two electrodes from contacting and causing a short circuit. In addition, it also has the function of allowing electrolyte ions to pass through.

　　Marketed separator materials are mainly polyolefin (Polyolefin) separators based on polyethylene (PE) and polypropylene (PP). Among them, PE products are mainly made by wet processes, and PP products are mainly made by dry processes. Produced by legal process.

　　Lithium battery production and processing process

　　The production and processing process of lifepo4 18650 battery is not very consistent for each manufacturer, but most of them are inseparable from these links, as follows:

　　Detailed explanation of the production process flow chart of lifepo4 18650 battery

　　Specifically as follows: material preparation - homogenization - coating - rolling - cutting - baking - winding - shelling - laser welding - baking - liquid injection - pre- Charging - sealing - cleaning - aging - full inspection - warehousing - shipping.

　　Lithium battery processing price analysis

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