METHOD OF MANUFACTURING BATTERY COMPONENT AND APPARATUS FOR MANUFACTURING BATTERY COMPONENT

Provided are a method and an apparatus for manufacturing a battery component including a base having a three-dimensional structure at low manufacturing costs, the method and the apparatus enabling impregnation of the base with a solid electrolyte of uniform composition while preventing or inhibiting air from remaining inside the base. A method of manufacturing a battery component, including: a first step of positioning a base having a three-dimensional structure in an impregnation tank; and a second step of feeding a solid electrolyte slurry to the base positioned in the impregnation tank while keeping the solid electrolyte slurry flowing, thereby impregnating the base with the solid electrolyte slurry.