The present disclosure provides a
lithium iron phosphate, a preparation method thereof, and an application thereof. The preparation method includes: dispersing a
lithium source by using an emulsifier, then adding a first initiator, and carrying out a first
polymerization reaction to obtain an
intermediate product A; adding a
mixed solution of
methyl methacrylate, a crosslinking agent and a second initiator to the
intermediate product A, and carrying out a second
polymerization reaction to obtain an
intermediate product B; mixing the intermediate product B, an oxidant, an
iron source and a
phosphorus source, and carrying out a third reaction to obtain an intermediate product C; and dispersing the intermediate product C by using a glucose solution, and carrying out
drying and calcining to obtain the
lithium iron phosphate. The present disclosure also provides the
lithium iron phosphate obtained by the preparation method. The present disclosure further provides a positive
electrode material, including the
lithium iron phosphate. According to the preparation method, a nano-scale
lithium iron phosphate can be directly obtained, and procedures, such as pulverization, and
energy consumption in the manufacturing process can be reduced. The lithium
iron phosphate has evenly distributed elements, and has good
charge and discharge properties when being used as a positive
electrode material.