Under continuous nitrogen protection, the third solution is injected into the reaction vessel, and the first solution is gradually injected into the reaction vessel at the injection rate of 15ml/min. At the stirring rate of 800rpm and 50℃, the second solution is injected into the reaction vessel to maintain the ph of the reaction solution between 11 and 12, and the co-precipitation reaction is carried out. The iron is then removed by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC magnetic.
After the first solution was injected, the supernatant was standing, and the supernatant was drained until the particle size dv50 of the nickel-iron-manganese base precursor precipitated reached the target value of 10μm. After precipitation, washing and drying, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field was used to remove iron, and na2co3 was prepared according to the ratio of x = 0.85. After mixing, it was sintered in a fluorine furnace at 870℃ for 12h at a continuous flow rate of 20l/min under air atmosphere.
Finally, the electrode material of sodium ion battery was obtained. The first solution of 2mol/l for PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field; A second solution containing 3.864mol/l and 0.336mol/l sodium carbonate was prepared; A third solution containing 2g/l ammonia and 0.2ml/l hydrazine hydrate was prepared;
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