| 摘要 |
PURPOSE: A manufacturing method of a positive electrode active material is provided to manufacture a positive electrode active material not forming dendrite and not having a inner pressure change even after high-temperature long-term charging/discharging test because amounts of by products such as LiOH, LI2CO3, etc. CONSTITUTION: A manufacturing method of a positive electrode active material comprises: a step of obtaining a mixture by mixing a lithium-containing compound and metal oxide; a step of spraying lithium-containing compound powders into a furnace; and a step of heat-treating the mixture in the furnace. A thermal decomposition temperature of the lithium-containing compound to be sprayed in the furnace is lower than a thermal decomposition temperature of lithium-containing compound to be mixed with the metal oxide. The lithium-containing compound is one or more selected from lithium hydroxide, lithium carbonate, lithium nitrate and lithium acetate. |
