Electrode plate transfer device

An electrode plate transfer device carrying a plurality of electrode plates each of which includes a plurality of side edges and a plurality of corner edges connecting the plurality of side edges, the electrode plate transfer device comprising:

• a support plate over which the plurality of electrode plates are stacked;
• and
• a plurality of support walls spaced apart from each other on the support plate, and bent to respectively face the plurality of corner edges to each form an inner bent surface and an outer bent surface,
• wherein each of the plurality of support walls comprises:
• a first frame located at an edge of the support plate and forming at least one of the inner bent surface or the outer bent surface;
• and
• a second frame in contact with the first frame, at least a part of the second frame forming the inner bent surface.