METHOD FOR MANUFACTURING CABLE-TYPE SECONDARY BATTERY

摘要

The present invention relates to a method for manufacturing a cable-type secondary battery, which includes a current collector having a horizontal cross section of a predetermined shape and an active material layer formed on the surface of the current collector, and which comprises electrodes extended in the longitudinal direction and disposed in parallel to each other. The manufacturing method for the electrode comprises the steps of: fabricating electrode slurry by injecting active material, a polymer binder, and a solvent into an extruder; extruding and coating the extrude slurry on the surface of a current collector while continuously supplying the current collector to the extruder; and drying the current collector on which the electrode slurry has been coated and thus forming an active material layer. Since the method for manufacturing a cable-type secondary battery using extrusion coating according to the present invention enables continuous coating of the electrode slurry on the current collector, the method is suitable for manufacturing a cable-type secondary battery extended in the longitudinal direction, and thus increases productivity. In addition, it is easy to adjust the thickness of a coating layer through adjustment of the conveying speed of a current collector or the extrusion speed of electrode slurry.