ELECTRICITY STORAGE MODULE

An electricity storage module includes a layered object obtained by layering power storage elements each having positive and negative foil-shaped lead terminals that project in an outward direction from an end portion, and connection members that connect the lead terminals of adjacent power storage elements to each other. An insulating holding member is arranged between the layered object and the connection members. Connection member holding portions that hold the connection members on the surface on the side opposite to the surface that opposes the layered object are provided on the insulating holding member, and slits are provided on the insulating holding member so as to extend along edge portions of the connection members held by the connection member holding portions. The lead terminals are connected to the connection members by being inserted through the slits and folded over onto the connection members.