Apparatus and method for notching electrode sheet

A method for notching an electrode sheet, which continuously notches a non-coating portion formed on the electrode sheet so as to be processed as an electrode tab, the method comprising:

• an operation (a) of rotating first and second transfer rollers to transfer the electrode sheet at regular intervals;
• an operation (b) of rotating a rotation member of a jig unit in a direction perpendicular to a transfer direction of the electrode sheet to allow any one jig of two or more jigs provided on the rotation member to be disposed on a bottom surface of the non-coating portion disposed between the first and second transfer rollers;
• an operation (c) of allowing the rotation member to ascend by using an elevation unit to allow an entirety of the jig unit as a whole to ascend in a direction towards the non-coating portion so that the jig supports the bottom surface of the non-coating portion;
• an operation (d) of notching the non-coating portion supported on the jig y using the notching unit so as to be processed as an electrode tab;
• and
• an operation (e) of allowing the rotation member to descend by using the elevation unit to allow the entirety of the jig unit as a whole to descend in a direction away from the non-coating portion so that the jig is separated from the electrode sheet.

An apparatus for continuously notching an electrode sheet at a non-coating portion of the electrode sheet to be processed as an electrode tab, the apparatus comprising:

• a first and second transfer rollers provided on a bottom surface of the electrode sheet including the non-coating portion and a coating portion to transfer the electrode sheet at regular intervals;
• a jig unit provided below the electrode sheet at a location between the first and second transfer rollers, and periodically supporting the bottom surface of the non-coati rig portion;
• a notching unit provided above the electrode sheet to periodically notch the non-coating portion supported on the jig unit to provide the electrode tab;
• and
• an elevation unit allowing an entirety of the iig unit as a whole to descend in a direction that is away from the non-coating portion or ascend in a direction towards the non-coating portion,
• wherein the jig unit comprises:
• a rotation member provided between the first and second transfer rollers and rotated when the electrode sheet is moved in a transfer direction of the electrode sheet;
• and
• at least one jig provided on an outer circumferential surface of the rotation member to periodically support the non-coating portion at a location between the first and second transfer rollers.