Method for preparing porous carbon lithium iron phosphate positive electrode material by using metal organic framework

The invention discloses a method for preparing a lithium iron phosphate material by using a metal organic framework, and belongs to the technical field of lithium ion battery materials, and the method comprises the following steps: (1) preparing the metal organic framework; (2) dispersing the prepared metal organic framework powder into an ethanol solution, and dispersing LiH2PO4 powder into ethanol at the same time; then, a LiH2PO4 solution is dropwise added into the turbid liquid under the condition of continuous stirring; and (3) stirring the mixed precursor reactant at room temperature for 24 hours, and evaporating the ethanol solution at the water bath temperature of 80 DEG C to dryness. And transferring the dried solid powder into a tubular furnace, and calcining in a reducing atmosphere to obtain the lithium iron phosphate carbon composite material. The lithium iron phosphate positive electrode material can be obtained by using the preparation method provided by the invention, and the rate capability a