| abstract |
(A) preparing a mixed solution by adding a lithium precursor, an iron precursor, and a phosphorus precursor to a reaction solvent; And (b) introducing the mixed solution into a reactor and heating to synthesize lithium iron phosphate nano powder under a pressure of 1 bar or more and less than 10 bar; And a lithium iron phosphate nano powder prepared by the above method. In comparison with the conventional hydrothermal synthesis method, supercritical water count method and glycotermal method, the reaction can be carried out under a relatively low pressure condition Thus, it is possible to easily produce a lithium iron phosphate nano powder having a uniform particle size and controlled particle size distribution, while ensuring safety and economy of the process without using a high-temperature / high-pressure reactor. |