ELECTRODE AND MANUFACTURING METHOD THEREFOR

• Main Authors: LEE, Seo Jun, LEE, Hyuk Soo, LEE, Hyojin, KIM, Tae Su
• Format: Patent
• Language: English; French; German
• Published: 06.03.2024
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BASIC ELECTRIC ELEMENTS; ELECTRICITY; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

A method for preparing an electrode, includes (a) designating a current collector surface into an active material layer-laminated portion and an active material layer-nonlaminated portion, and attaching a masking tape to the active material layer-nonlaminated portion; (b) laminating an active material layer on the masking tape-attached current collector; (c) forming a cutting groove on an upper surface of the active material layer along a boundary of the masking tape at the bottom and the active material layer; and (d) removing the masking tape along the cutting groove to form the active material layer-nonlaminated portion, and an electrode in which a corner portion where an upper surface of the active material layer and a side wall surface forming a thickness of the active material layer meet is formed in a right-angled shape.