The invention relates to a method for
processing a ternary material by being clad with
lithium ferric manganese phosphate. The invention belongs to the technical field of a
cathode material of
lithium ion batteries. The method for
processing the ternary material by being clad with the
lithium the
ferric manganese phosphate comprises the steps of 1, preparation of LFMP precursor
slurry: respectively weighing iron,
manganese, lithium and
phosphorus sources in proportion required by 0.1-100g LFMP, weighing 0-50g
ascorbic acid, and adding a dispersion
solvent, wherein the
solid content is 10%-80%; 2, mixture of materials: weighing 100g ternary material with the constitute of Li(z)Ni(1-x-y)Co(x)Mn(y)O(2), or the mixture of two or more constitutes with the above proportion, adding the
slurry, mixing the
slurry and the mixture, and carrying out
vacuum drying; 3, preparation of the ternary material / lithium
ferric manganese phosphate composite cathode material: putting the materials into an
argon protective
atmosphere sintering surface, keeping warm at the temperature of 250-400 DEG C for 2-6h, then heating to 500-700 DEG C and keeping for 6-16h, cooling along with the furnace, and sieving. The method provided by the invention has the advantages of being simple in technology, convenient to operate, accordant in material performance, small in influence on
cell capacity density, and being capable of improving safety performance of the ternary material.