POWDER-SUPPLY DEVICE FOR SECONDARY BATTERY USE, AND DEVICE FOR MANUFACTURING ELECTRODE BODY

摘要

PROBLEM TO BE SOLVED: To provide a powder-supply device for secondary battery use which can supply a fixed amount of powder with good accuracy at all times without being influenced by a condition of the powder, and to provide a device for manufacturing an electrode body, which includes the powder-supply device and is capable of manufacturing an electrode body efficiently.SOLUTION: A powder-supply device for secondary battery use comprises a rotor 7 for dropping powder 10 into an exhaust port 6c. The rotor 7 has an outer peripheral surface 7a and grooves 7b formed in an outer peripheral part thereof and extending in parallel in a direction of a shaft center thereof at equally spaced intervals in a circumferential direction. The rotor 7 is rotatably supported in a reservoir part 6a so that the shaft center of the rotor 7 is in parallel with a widthwise direction of the exhaust port 6c in plan view and becomes horizontal. A distance d1 between the outer peripheral surface 7a and an inner surface of the reservoir part 6a is fixed, and a gap defined by the outer peripheral surface 7a and the inner surface of the reservoir part 6a forms a path for transportation of the powder 10. The powder-supply device further comprises a mesh body 8 covering the lower end of the exhaust port 6c. A gap between the outer peripheral surface 7a of the rotor 7 and the mesh body 8 is kept a fixed distance d2.