PREPARATION METHOD FOR LITHIUM-ION BATTERY ANODE BY DIRECT FORMATION OF METAL OXIDE PARTICLES IN POROUS CARBONS

摘要

PURPOSE: A manufacturing method of a lithium secondary battery is provided to provide a nanocomposite with high capacity and performance, and to economically produce a large amount of nanocomposites. CONSTITUTION: A manufacturing method of a lithium secondary battery comprise: a step of impregnating an aqueous solution which contains a metal oxide into a porous carbon material; and a step of drying and heat-treating the mixture solution after the impregnation, and directly forming a metal oxide nanoparticle in pores of the carbon material. A secondary battery comprises: a negative electrode which comprises a current collector coated with the metal oxide-carbon material nanocomposite; a positive electrode corresponding to the negative electrode; and an electrolyte between the negative electrode and the positive electrode. [Reference numerals] (AA,DD) Porous carbon material; (BB) Impregnating metal ion aqueous solution; (CC) Drying; (EE) Metal ion aqueous solution; (FF) Metal hydroxide; (GG) Heat treatment; (HH) Metal oxide particles