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. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field remove iron to obtain the precursor.
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 precipitated, washed and dried, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field was used to remove iron, and na2co3 was prepared according to x = 1.03 ratio, and 3wt % al2o3 was added. After mixing, The electrode material of the sodium-ion battery was obtained by sintering at 880℃ for 12h at a continuous flow rate of 40l/min in an air atmosphere in a fluorine furnace.
The only difference is that the second solution does not include sodium carbonate, and the rest are the same. Using the existing PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC preparation method, the preparation process is nickel oxide, iron oxide, manganese oxide, copper oxide and sodium carbonate are mixed into the precursor according to the stoichiometric ratio;
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