CATHODE FOR CABLE-TYPE SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

摘要

The present invention relates to a method for manufacturing a cathode which is coated with a solid electrolyte layer for a cable-type secondary battery, comprising the following steps: (S1) preparing a cathode active material solution; (S2) manufacturing the cathode by submerging into the cathode active material solution a core portion, which is a current collector which has a horizontal section of a predetermined shape and extends in the lengthwise direction; and (S3) forming an electrolyte layer on the surface of the cathode by passing the cathode through a solid electrolyte solution. The cathode has improved lithium-ion mobility by having a large surface area, resulting in superior battery performance, and can prevent deformation and secure safety by being able to buffer stress and pressure, such as volume expansion, inside the battery, when charging/discharging.