Bipolar Storage Battery

A bipolar storage battery, comprising:

• cell members arranged with spacing in a stacked manner, each of the cell members including a positive electrode including a positive current collector and a positive active material layer, a negative electrode including a negative current collector and a negative active material layer, and separators interposed between the positive electrode and the negative electrode;
• and
• space-forming members forming a plurality of spaces individually accommodating the cell members, each of the space-forming members including a substrate and a frame body, the substrate covering at least one of a side of the positive electrode or a side of the negative electrode of the cell member, and the frame body surrounding a side surface of the cell member,
• wherein each of the separators has a first surface and a second surface with different surface roughness, and surfaces in contact with the positive active material layer and the negative active material layer are each a surface having a finer surface roughness than the first surface or the second surface.