| abstract |
A method for coating LATP with a nickel-cobalt-manganese ternary precursor, comprising: mixing a soluble lithium salt solution and a soluble aluminum salt solution, adjusting the pH to 4-5, and preparing a mixed solution A of lithium and aluminum; preparing hydrogen carbonate separately Ammonium solution B, ammonium dihydrogen phosphate solution C, and titanium salt solution D; add solution A as bottom liquid in the reaction kettle, add nickel-cobalt-manganese ternary precursor; pump solution B into the reaction kettle, and mix solution C and solution D is pumped into the reaction kettle respectively, the feeding time is controlled separately, and the feeding is stopped, and the stirring speed and temperature are maintained for 2 hours to obtain slurry; the slurry is centrifuged, washed, dried, sieved, and iron removed to obtain LATP-coated NCM Ternary precursor material. The co-precipitation method can produce LATP-coated NCM precursors on a large scale, and the coating layer is more uniform than the high-temperature solid-phase method. |