Device for preparing core-shell particles and method for preparing core-shell particles by using same

Abstract

A method of manufacturing core-shell particles comprises: filling a buffer into a rotor, which is extended in a longitudinal direction, and is accommodated so as to be spaced apart from an inner wall side of an irrotational hollow cylinder extended in a longitudinal direction and then discharging air to outside; rotating the rotor after terminating the filling; forming a core-shell precursor by supplying raw materials from a first storage and a second storage, which comprise a material forming a core, into an interior of the cylinder in which the rotor rotates; supplying a shell material for coating the core to the interior of the cylinder in which a core-type precursor is formed; separating a liquid comprising core-shell particles formed through the supplying into a solid and a liquid; and drying the core-shell particles obtained through the separating. An apparatus for manufacturing the core-shell particles is provided.

What is claimed is: 
     
         1 . An apparatus for manufacturing core-shell particles, the apparatus comprising:
 a reactor comprising an irrotational hollow cylinder extended in a longitudinal direction, a rotor accommodated so as to be spaced apart from an inner wall side of the cylinder and extended in a longitudinal direction, a driving part connected to one end of the rotor and rotating the rotor, a first raw material inlet and a second raw material inlet respectively formed so as to be connected to the interior of the cylinder at an external circumferential side of one end of the cylinder with respect to a longitudinal direction of the cylinder, an outlet formed at another end of the cylinder so as to be connected to the interior of the cylinder in an opposite direction from the first raw material inlet and the second raw material inlet, at least one shell material inlet formed at an external circumferential side of the cylinder and supplying a shell material to the interior of the cylinder, a heat exchange material moving path formed between an external circumferential side and an interior circumference of the cylinder and providing a moving path of a heat exchange material, a heat exchange material inlet connected to the heat exchange material moving path and serving to inject a heat exchange material, and a heat exchange material outlet connected to the heat exchange material moving path and discharging a heat exchange material;   a first storage connected to the first raw material inlet of the reactor;   a second storage connected to the second raw material inlet of the reactor;   a solid-liquid separator connected to the outlet of the reactor and separating a product discharged from the outlet into solid particles and a liquid; and   a drier connected to the solid-liquid separator and drying solid particles separated by the solid-liquid separator.   
     
     
         2 . The apparatus according to  claim 1 , further comprising a circulation pump for circulating the heat exchange material, connected between the heat exchange material inlet and the heat exchange material outlet. 
     
     
         3 . The apparatus according to  claim 1 , wherein a first pump and a second pump are respectively connected between the first storage and the first raw material inlet and between the second storage and the second raw material inlet. 
     
     
         4 . The apparatus according to  claim 1 , wherein the driving part is a variable speed stirrer motor for controlling a rotation speed to 1 rpm or more. 
     
     
         5 . A method of manufacturing core-shell particles, the method comprising:
 filling a buffer into a rotor, which is extended in a longitudinal direction, and is accommodated so as to be spaced apart from an inner wall side of an irrotational hollow cylinder extended in a longitudinal direction and then discharging air to outside;   rotating the rotor after terminating the filling;   forming a core-shell precursor by supplying raw materials from a first storage and a second storage, which comprise a material forming a core, into an interior of the cylinder in which the rotor rotates;   supplying a shell material for coating the core to the interior of the cylinder in which a core-type precursor is formed;   separating a liquid comprising core-shell particles formed through the supplying into a solid and a liquid; and   drying the core-shell particles obtained through the separating.   
     
     
         6 . The method according to  claim 5 , wherein as the liquid comprising the core-shell particles separated at the separating, a reactant in a normal state within the reactor is used. 
     
     
         7 . The method according to  claim 5 , wherein lithium chloride and sodium carbonate; or lithium hydroxide and carbon dioxide; or aluminum carbonate and copper sulfate, as a pair of raw materials, are respectively stored in the first storage and the second storage. 
     
     
         8 . The method according to  claim 5 , wherein the shell material is an inorganic metal comprising copper, cobalt, or manganese; or is a polymer or an oligomer selected from the group consisting of polyethylene glycol, polyethylene oxide, polyethylene glycol methyl ether, polyethylene glycol dimethyl ether, polypropylene oxide, polyethylene, polypropylene, polyisobutylene, and polyvinylidene chloride.