The cathode material of lithium battery is lithium cobalt acid LiCoO2, ternary material Ni + Mn + Co, lithium manganate LiMn2O4 plus conductive agent and binder, coated on aluminum foil to form a positive electrode, the negative electrode is layered graphite plus conductive agent and binder coated on the copper foil baseline, and the more advanced anode layered graphite particles have adopted nanocarbon.
1. Pulping: Mixed with powdered positive and negative active substances with special solvents and binders, and after stirring evenly, the positive and negative electrode substances in the form of slurry are made.
2. Coating film: the positive and negative electrode slurry is evenly coated on the surface of the metal foil by the automatic coating machine, and the positive and negative electrode pieces are automatically sheared after automatic drying.
3. Assembly: According to the order of positive electrode sheet - diaphragm - negative film - diaphragm from top to bottom, it is wound and injected with electrolyte, sealing, positive and negative ear welding and other processes, that is, to complete the assembly process of the battery and make a finished battery.
4, chemical formation: the finished battery is placed in the test cabinet for charge and discharge test, and the qualified finished battery is screened out to be shipped