Lithium-rich phosphate positive electrode material as well as preparation method and application thereof

The invention discloses a lithium-rich phosphate positive electrode material as well as a preparation method and application thereof. The lithium-rich phosphate positive electrode material comprises a lithium-rich phosphate positive electrode material, the lithium-rich phosphate positive electrode material comprises a main phase and a lithium-rich phase for supplementing lithium, and the main phase and the lithium-rich phase are mutually doped to form a single crystal phase; wherein the main phase is LiMaPO4 (lithium iron phosphate). The phosphate positive electrode material has high initial coulombic efficiency, energy density and cycle performance. The preparation method of the lithium-rich phosphate positive electrode material can ensure that the prepared lithium-rich phosphate positive electrode material is stable in structure and electrochemical performance, the efficiency is high, and the production cost is saved. 本申请公开了一种富锂磷酸盐系正极材料及其制备方法和应用。本申请富锂磷酸盐系正极材料包括富锂磷酸盐正极材料，富锂磷酸盐正极材料包括主相和用于补锂的富锂相，且主相和富锂相互相掺杂形成单