| 主权项 |
1. A method of preparing lithium transition metal phosphate, the method comprising:
feeding reactants comprising an acidic source material and a basic source material into a reactor, and mixing the reactants at a molecular level in the reactor; generating a crystal nucleus by chemically reacting the reactants in the reactor, wherein a time (TM) taken to mix the reactant at the molecular level is shorter than a time (TN) taken to generate the crystal nucleus, and TM is in a range of 10 to 100 μs and TN is 1 ms or less; growing the crystal nucleus into a nano-sized crystal to obtain a slurry comprising a lithium transition metal phosphate; and then filtering, washing, drying and/or heating the slurry to prepare a nanoparticle lithium transition metal phosphate, wherein the acidic source material is fed into the reactor through a first source material feeding line and the basic source material is fed into the reactor through a second source material feeding line, wherein the acidic source material comprises lithium, a transition metal, and phosphoric acid, and the basic source material comprises an inorganic base; the acidic source material comprises a transition metal and phosphoric acid, and the basic source material comprises lithium; the acidic source material comprises lithium and phosphoric acid, and the basic source material comprises a transition metal; or the basic source material comprises lithium and a transition metal, and the acidic source material comprises phosphoric acid, wherein the reactor is a high gravity rotating packed bed reactor including:
a chamber that defines an inner space;a permeable packed bed that is rotatable, is disposed inside the chamber, and is filled with a porous filler;at least one source material feeding line through which the reactants are fed into the inner space; anda slurry outlet through which a slurry is discharged from the inner space. |
