Electric power storage module

An electric power storage module comprising:

• a stacked body having an outer surface;
• and
• a sheet member provided in close contact with the stacked body to cover the outer surface in a cross section along a stacking direction of the stacked body,
• wherein the sheet member includes a metal layer, and a first insulating layer stacked on the metal layer and disposed closer to the outer surface than the metal layer,
• the stacked body includes a plurality of electrodes stacked along the stacking direction, a sealing part, and an electrolyte,
• each of the electrodes includes a current collector,
• the electrolyte is accommodated in a space between the current collectors adjacent to each other in the stacking direction,
• the sealing part is a frame-shaped member configured to seal the electrolyte in the space,
• the electrodes include a plurality of bipolar electrodes, a positive terminal electrode, and a negative terminal electrode,
• each of the bipolar electrodes includes the current collector, a positive electrode active material layer provided on one surface of the current collector, and a negative electrode active material layer provided on the other surface of the current collector, and is stacked such that the positive electrode active material layer and the negative electrode active material layer face each other,
• the positive terminal electrode includes the current collector and the positive electrode active material layer provided on the one surface of the current collector, and is stacked on the bipolar electrode at one end portion in the stacking direction of the stacked body,
• the negative terminal electrode includes the current collector and the negative electrode active material layer provided on the other surface of the current collector, and is stacked on the bipolar electrode at the other end portion in the stacking direction of the stacked body,
• the sealing part includes a plurality of frame-shaped first resin layers provided on a peripheral edge of each of the plurality of current collectors, and a second resin layer configured to seal the space by welding end portions of each of the plurality of first resin layers on a side opposite to the space,
• the outer surface includes an end surface of the second resin layer on the side opposite to the space, a first surface that is an outer surface in the stacking direction of the first resin layer provided on the current collector of the positive terminal electrode, and a second surface that is an outer surface in the stacking direction of the first resin layer provided on the current collector of the negative terminal electrode,
• the outer surface of the current collector in the stacking direction in each of the positive terminal electrode and the negative terminal electrode includes an exposed portion exposed to an outside from the sealing part, and
• the sheet member extends from the first surface to the second surface via the end surface, and is divided into a plurality of mutually insulated portions in the cross section along the stacking direction.