Solution a with a metal ion concentration of 100g/l was prepared by nickel sulfate, manganese sulfate and ferrous sulfate heptahydrate according to the molar ratio of ni, mn and fe at 6:2:2. At 380rpm and 55℃, 28% ammonia solution (solution b) and 18% sodium hydroxide solution (solution c) were added. For PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC, a substrate with an ammonia concentration of 5g/l and a ph of 11.6 was prepared.
Solution a, b and c were added into PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC magnetic reactor at a flow rate of 8l/h, 0.9l/h and 2.55l/h, respectively. The ph of the reaction system was controlled to be 10.5, and the coprecipitation reaction was carried out. When the solution reached 7μm, After washing, filtration and drying, the precursor with specific surface area of 14m2/g and solid density of 1.8g/cm3 was obtained
With lithium carbonate, sodium carbonate according to lithium, sodium and transition metal molar ratio 0.4:0.6: 1.0 After mixing evenly, heating at 4℃/min to 450℃ for 5h, and then heating at 3℃/min to 750℃ for 12h, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field obtained positive electrode material.
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