Patent ID: 8211572

Claim:
A fabrication method for an electrode active material, comprising: preparing an aqueous solution by dissolving a precursor that can simultaneously undergo positive ion substitution and surface-reforming processes in water; mixing and dissolving a raw material for an electrode active material with a composition ratio for a final electrode active material in the aqueous solution, thereby preparing a mixed solution; removing a solvent from the mixed solution, thereby forming a solid dry substance; thermal-processing the solid dry substance; and crushing the thermal-processed solid dry substance; wherein the precursor comprises at least one of Zirconium (IV) Acetate Hydroxide, Aluminum Acetate Basic, and Chromium (III) Acetate Hydroxide; wherein the raw material for an electrode active material comprises at least one of lithium compounds, cobalt compounds, nickel compounds, manganese compounds, iron compounds, and titanium compounds; wherein no chelating agent is used in the fabrication method; and wherein the thermal-processing is performed more than once for 30 minutes ˜24 hours at a temperature of 350° C.˜1300° C.