FABRICATING METHOD OF LITHIUM-IRON-METAL-PHOSPHATE-CARBON COMPOSITE NANOFIBER CATHODE ACTIVE MATERIAL AND CATHODE ACTIVE MATERIAL FABRICATED BY THE METHOD

摘要

PURPOSE: A manufacturing method of an anode active material is provided to manufacture a lithium-iron-metal phosphate-carbon composite nanofiber anode active material with a large surface area by controlling the lithium-iron-metal phosphate-carbon composite to the nanofiber form using electric radiation. CONSTITUTION: A manufacturing method of a lithium-iron-metal phosphate-carbon composite nanofiber anode active material using electric radiation comprises: a first step of making a viscid solution by mixing a raw material, which is quantified by stoichlometric ratio with the empirical formula: LiFe1-xMxPO4 (0=X=1, M = Ni, Mn, Co, V, Cr, Cu, Ti, Zr), and a chelating agent with solvent; a second step of manufacturing a nanofiber precursor by radiating electricity to the viscid solution; a third step of drying the nanofiber precursor; and a fourth step of plasticizing the dried nanofiber precursor.