METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR POWER STORAGE DEVICE

摘要

PURPOSE: A manufacturing method of a positive electrode active material for accumulation apparatus is provided to atomize of silicate-based lithium compound and restore crystallinity of the atomized silicate-based lithium compound. CONSTITUTION: A manufacturing method of a positive electrode active material for accumulation apparatus comprises the following steps: a step of first heat-treating a mixture containing lithium-containing compound, transition metal-containing compound, and silicon-containing compound; a step of pulverizing the mixture after the heat-treatment; a step mixing after adding carbon-containing material to the mixture; and a step of second heat-treating at a lower temperature than the temperature of the first heat-treatment.