Manufacturing apparatus and manufacturing method of positive electrode active material

A manufacturing apparatus comprising:

• a furnace tube with a cylindrical shape;
• a gas supply unit for filling an inside of the furnace tube with an oxygen atmosphere;
• a container in contact with an inner wall of the furnace tube, the container comprising an outer periphery with a curved surface;
• a lid for enclosing an inner space of the container;
• a heating unit placed around the furnace tube;
• and
• a unit for vibrating the furnace tube and the container,
• wherein a material of the container is the same as a material of the lid,
• wherein a material of the furnace tube is different from the material of the container,
• wherein the container in contact with the inner wall of the furnace tube is rotated by rotating the furnace tube, and
• wherein the furnace tube and the container are vibrated by the unit for vibrating the furnace tube and the container so that a material held in the inner space of the container is stirred.

A manufacturing method of a positive electrode active material, the manufacturing method comprising:

• holding a fluoride and a metal oxide comprising lithium in an inner space of a container comprising an outer periphery with a curved surface;
• putting a lid on the container to enclose the inner space;
• arranging the container in contact with an inner wall of a furnace tube;
• performing heat treatment using a heating unit placed around the furnace tube;
• opening the lid after the heat treatment;
• and
• collecting the positive electrode active material from the container,
• wherein the heat treatment is treatment for sequentially undergoing temperature rising, temperature retaining, and temperature decreasing,
• wherein the container in contact with the inner wall of the furnace tube is rotated by rotating the furnace tube at the time of the temperature rising, the temperature retaining, and the temperature decreasing, and
• wherein the furnace tube and the container are vibrated at the time of the temperature rising, the temperature retaining, and the temperature decreasing.