Ratio of metal element content to molar mass of lithium 1:1.06 The precursor was mixed with lithium hydroxide, and then sintered at 745℃ and oxygen atmosphere to obtain high alkali material. The high-alkali material was finely broken into high-alkali material with an average particle size of 10.5μm. The high alkali MATERIAL and fine material are washed, pressed and dried, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC removal of iron to obtain washing material.
The ratio of metal element content to lithium molar mass 1:0.92 The precursor was mixed evenly with lithium hydroxide, and then sintered at 775℃ and oxygen atmosphere to obtain a low alkali compound. The low alkali feed was finely broken into low alkali feed fine feed with average particle size of 10.5μm. The washing material and the low alkali material were put into the coating mixer according to the mass ratio of 1.5:1, and the coating agent boric acid, which accounted for 0.7% of the mass of the whole mixed coating system, was put into the coating agent, and the coating material was mixed and coated. The coating MATERIAL was sintered in oxygen atmosphere at 550℃, and the PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC was removed from iron to obtain high nickel ternary cathode material.
Metal element content to molar mass ratio of lithium 1:1.05 The precursor was mixed with lithium hydroxide and then sintered in an oxygen-containing atmosphere at 830℃. After sintering, the PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC was washed and dried, and iron was removed to obtain high nickel ternary cathode material.
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