First of all, the required amount of 70% to 90% of the solvent into the blender, and then add the required amount of binder, stirring for 1 to 5 hours; After the adhesive is completely dispersed, add the required amount of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC conductive agent graphene for iron removal and stir for 0.5~2 hours; After the conductive agent is completely dispersed, add the required amount of active material, stir for 2~6 hours, after all components are completely dispersed, appropriately add the remaining solvent to adjust the viscosity of the slurry to 4000~7000Mpa · S.
PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC magnetic graphene is characterized by N-methylpyrrolidone (NMP) as solvent and polyvinylidene fluoride (PVDF) as binder. The active substance is one or more mixtures. The mass ratio of each component of active substance, conductive agent and binder is (90-97) : (1-4): (1-5), and the solvent is 60% to 90% of the total weight of each component. The mixing equipment is a double planetary vacuum mixer, and the slurry temperature is controlled by using the method of circulating water at the corresponding temperature into the planetary mixing bucket.
PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC magnetic cylinder lithium battery made of iron-removed graphene was tested for electrical performance. The capacity retention rate of the cylindrical lithium battery was 97.92% after 1000 cycles of charging and discharging, and the comparison was 95.23%. The comparison results of energy density and internal resistance were compared.
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