Preparation method of olive-shaped lithium manganese phosphate with prismatic protrusions

Belonging to the technical field of lithium ion battery cathode materials, the invention discloses a preparation method of olive-shaped lithium manganese phosphate. The method adopts an organic solvent as the reaction solvent, combines the surface modification effect of a surfactant, and changes the reaction parameters to realize nucleation of lithium manganese phosphate and regulation of the growth process during solvothermal reaction, and simply synthesizes the olivine-shaped lithium manganese phosphate electrode material. The co-regulation effect of the organic solvent and the surfactant inthe thermal reaction process can promote the growth of LiMnPO4 crystals along the crystal orientation on the ac plane, enhance the lithium ion diffusion ability and electrolyte infiltrability, and improve the electrochemical performance of LiMnPO4 material. The olivine-shaped lithium manganese phosphate prepared by the method has high purity and good dispersibility, thus improving the electrochemical performance of a lit