Method of Manufacturing Electrode Including Folding Portion and Electrode Sheet Including Folding Portion

• Main Authors: Won, Kwang Ho, Kim, Hyun Tae, Oh, Jung Shik, Kim, Ki Tae, Park, Chan Ki, Kim, Young Hoon
• Format: Patent
• Language: English
• Published: 27.04.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to an electrode manufacturing method for manufacturing a foldable battery cell, the electrode manufacturing method including a coating step of forming an electrode mixture coated portion on an electrode sheet so as to include an uncoated portion having no electrode mixture formed thereon by coating, a step of slitting the electrode sheet into a plurality of unit electrode sheets, and a step of notching the slit electrode sheet, wherein the uncoated portion includes a first uncoated portion formed so as to be parallel to a direction in which the electrode sheet is taken out and a second uncoated portion formed so as to be perpendicular to the direction in which the electrode sheet is taken out.