METHOD OF MANUFACTURING PATTERNED POSITIVE ELECTRODE FOR LITHIUM-SULFUR SECONDARY BATTERY AND METHOD OF MANUFACTURING LITHIUM-SULFUR SECONDARY BATTERY COMPRISING THE SAME

摘要

(1) forming a positive electrode active material layer before rolling by applying a slurry for forming a positive electrode active material on a current collector, (2) rolling the positive active material layer before rolling to have a porosity of 50 to 65%, and then forming a positive electrode active material A method of manufacturing a positive electrode for a lithium-sulfur secondary battery comprising forming a layer, and (3) forming a positive electrode active material layer having an intaglio pattern formed by irradiating a laser on the surface of the positive electrode active material layer after rolling is provided. The positive electrode manufactured by the method of manufacturing a positive electrode for a lithium-sulfur secondary battery can significantly improve energy density per unit volume when applied to a lithium-sulfur secondary battery.