POWER STORAGE MODULE

An electricity storage module includes a power storage element group (11) obtained by stacking a plurality of power storage elements (12) each having a lead terminal (13) that protrudes from a side edge. The lead terminals (13) are each provided with a terminal connection portion (17) for electrically connecting the lead terminals (13) that are adjacent in a direction in which the power storage elements (12) are stacked, and a detection terminal portion (18) that is electrically connectable to a device for detecting and controlling states of the respective power storage element (12).