Soluble titanium modified lithium iron phosphate positive electrode material as well as preparation method and application thereof

The invention relates to the technical field of lithium ion batteries, in particular to a soluble titanium modified lithium iron phosphate positive electrode material as well as a preparation method and application thereof. The preparation method of the soluble titanium modified lithium iron phosphate positive electrode material comprises the following steps: sequentially adding an organic titanium source and a chelating stabilizer into an acid solution, and heating to obtain a titanium source solution; uniformly mixing the titanium source solution, a surfactant, an iron source, a phosphorus source, a carbon source and a lithium source to obtain a mixed solution; carrying out solvothermal reaction on the mixed solution, and then carrying out solid-liquid separation to obtain a precursor material; and sintering and crushing the precursor material to obtain the soluble titanium modified lithium iron phosphate positive electrode material. According to the method, the high-compaction soluble titanium modified lit