A sheet transportation device includes a guide roll along which a sheet is to be wound. The sheet includes a plurality of tabs provided intermittently in a longitudinal direction along at least one end in a width direction. The guide roll includes a cylindrical roll main body and a short-diameter portion connected with the roll main body so as to be outer, in the width direction of the sheet, to the roll main body. The roll main body is located closer to a center, in the width direction, of the sheet than a transportation path for the end. A portion of the sheet that is closer to the center than the end is wound along the roll main body. The short-diameter portion is connected with the roll main body via a stepped portion, and has an outer diameter shorter than an outer diameter of the roll main body.

The present disclosure relates to a secondary battery electrode plate cutting device, a secondary battery manufacturing device including the same, and a secondary battery manufacturing method. The secondary battery electrode plate cutting device includes a cutting unit provided with an upper cutter and a lower cutter installed on opposite sides with an electrode plate, which moves along a transfer path 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, and 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.