Vertical-type baking apparatus of positive electrode material for secondary battery

A vertical-type firing apparatus for a positive electrode material for a secondary battery for firing the positive electrode material for the secondary battery by moving the positive electrode material in a vertical direction, the vertical-type firing apparatus comprising:

• a vertical-type firing furnace comprising an exhaust part positioned in an upper portion and through which internal gas is exhausted, an air supply part positioned in a lower portion and through which external gas is supplied, and a firing space positioned between the exhaust part and the air supply part and extending in the vertical direction;
• and
• a heater configured to heat the firing space in the vertical-type firing furnace,
• wherein the positive electrode material for the secondary battery is put into the exhaust part and discharged from the air supply part through the firing space,
• the firing space comprises a temperature-raising space communicating with the exhaust part, a cooling space communicating with the air supply part, and the temperature-maintaining space communicating with the temperature-raising space and the cooling space between the temperature-raising space and the cooling space, and
• temperature of the temperature-maintaining space is higher than the temperature of the temperature-raising space and the temperature of the cooling space.