Apparatus for Manufacturing Secondary Battery, Method for Manufacturing Secondary Battery Using the Same, and Secondary Battery Manufactured Using the Same

A method for manufacturing a secondary battery, wherein the secondary battery comprises:

• an electrode assembly in which electrodes and separators are alternately stacked;
• and an electrode tab attached to each of the electrodes, the method comprising:
• an electrode tab cutting process of cutting a portion to be cut of the electrode tab;
• and
• an electrode tab attaching process of attaching the electrode tab to the electrode,
• wherein, in the electrode tab cutting process, a cutter moves toward the electrode tab to cut the portion to be cut of the electrode tab, and
• the cutter comprises:
• a pressing surface that presses the electrode tab;
• and
• an inclined surface provided at a position corresponding to the portion to be cut and inclinedly extending away from the electrode tab from an end of the pressing surface.

A secondary battery comprising:

• an electrode assembly in which electrodes and separators are alternately stacked;
• an electrode tab attached to each of the electrodes;
• and
• a battery case in which the electrode assembly and the electrode tab are accommodated,
• wherein a burr generated on an edge of the electrode due to cutting protrudes in a direction facing the battery case.