Secondary battery electrode plate cutting device, secondary battery manufacturing device including same, and secondary battery manufacturing method

A secondary battery manufacturing device comprising:

• an electrode plate transfer part configured to transfer an electrode plate along a transfer path;
• a cutting unit provided with an upper cutter and a lower cutter installed on opposite sides with the electrode plate therebetween and configured to cut the electrode plate;
• a cover film supply part configured to supply a cover film to be laminated on a surface of the electrode plate;
• a laminating part configured to laminate with the cover film the electrode plate before cutting so that the cutting unit cuts the cover film together with the electrode plate;
• and
• a film separator configured to separate the cover film from the electrode plate passing through the cutting unit.

A secondary battery manufacturing method comprising:

• a transfer operation of moving an electrode plate to be cut along a transfer path;
• a cover film supply operation of supplying a cover film to be laminated on a surface of the electrode plate;
• a lamination operation of laminating with the supplied cover film the electrode plate;
• a cutting operation of cutting the electrode plate to which the cover film is laminated;
• a delamination operation of removing the cover film from a cut film stack;
• and
• a winding operation of winding the electrode plate from which the cover film is removed.