SYNTHETIC METHOD OF CATHOD MATERIAL FOR LITHIUM SECONDARY BATTERY

• Main Authors: KIM, KI HONG, KWON, OH JOON, CHON, UONG, SOHN, JIN GUN, KIM, KI YOUNG, HAN, GI CHUN, SONG, CHANG HO
• Format: Patent
• Language: English; Korean
• Published: 09.03.2012
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PURPOSE: A manufacturing method of positive electrode material of a lithium secondary battery is provide to omit lithium carbonate manufacturing process, and to manufacture positive electrode material of high quality with low cost. CONSTITUTION: A manufacturing method of positive electrode material comprises a step of preparing lithium concentrated solution, a step of manufacturing mixed solution by solving one or more kind of material selected from Co, Ni, Fe and Mn, and a step of synthesizing powder for positive electrode material by heat-spraying the mixed solution to a chamber. The lithium concentrated solution is lithium hydroxide aqueous solution in which lithium separated through electrolysis is concentrated. The heating temperature of the heat-spraying is 500-800 °C.