PROBLEM TO BE SOLVED: To provide an apparatus for forming a carbon film capable of forming a uniform carbon film on an all surface of a particle by inhibiting agglomeration of particles.SOLUTION: The apparatus for forming a carbon film having a cylindrical reactor vessel, a gas inlet opening, and a heater to form carbon films on raw material particles by introducing a raw material gas into the reactor vessel from the gas inlet opening, and heating the inside of the reactor vessel with a heater while fluidizing a raw material powder in the reactor vessel includes a rotation shaft disposed inside the reactor vessel, a screw supported by the rotation shaft and disposed in the vicinity of the rotation shaft, a scraper supported by the rotation shaft and disposed in the vicinity of an inner wall surface of the reactor vessel, and a stirring blade supported by the rotation shaft and disposed between the rotation shaft and the scraper.SELECTED DRAWING: Figure 1
