FORMATION APPARATUS AND METHOD FOR FORMING POSITIVE ELECTRODE ACTIVE MATERIAL

An object is to provide a method for forming a positive electrode active material with low production cost. Another object is to provide a formation apparatus capable of forming a positive electrode active material with low production cost. In the method for forming the positive electrode active material, it is preferable that a material to be heated be heated in an atmosphere containing fluoride, i.e., the material to be heated be heated in a state where a partial pressure of a fluoride gas in a heating furnace is high. The fluoride gas is supplied to the heating furnace and circulated. Furthermore, the material to be heated is stirred during heating.