Electrode Connecting Device, Electrode Connecting Method, and Notching Machine Comprising Same

An electrode connecting device for connecting an end of a preceding sheet to an end of a succeeding sheet includes: an arrangement member provided with an arrangement part on which the end of the preceding sheet is located adjacent to or overlapping with the end of the succeeding sheet; and a guide member having a guide bar which is provided movable between a support position to support a side portion of the preceding sheet and a side portion of the succeeding sheet during connecting of the end of the preceding sheet to the end of the succeeding sheet and a retreat position not to interfere with movements of the preceding sheet and the succeeding sheet.