Energy storage apparatus and energy storage module

An energy storage apparatus comprising:

• a plurality of electrode assemblies that are cylindrical;
• and
• a film outer body including a plurality of housing portions that individually wrap the plurality of electrode assemblies, and a sealing portion that seals each housing portion and connects the plurality of housing portions to each other, the film outer body being bent between the housing portions adjacent each other to meander in an arrangement direction of the electrode assemblies, wherein
• the sealing portion includes
• first connectors and second connectors that are arranged between adjacent two of the housing portions and connect the two of the housing portions, and
• an outer edge extending over the plurality of housing portions on an outer side with respect to the housing portions in an axial direction of the electrode assemblies,
• the first connectors and the second connectors are alternately arranged in the arrangement direction, and extend in the arrangement direction while being shifted from each other in an orthogonal direction that is orthogonal to the axial direction and the arrangement direction,
• the outer edge includes first inclined portions and second inclined portions,
• the first inclined portions each being continuous from one of the first connectors and the housing portions, that being bent, with respect to a connection portion between the one of the first connectors and the housing portions, to a side of the second connectors in the orthogonal direction, and that including a valley fold fitted between the housing portions adjacent each other, and
• the second inclined portions each being continuous from one of the second connectors and adjacent two of the first inclined portions arranged with the one of the second connectors interposed therebetween, and that being bent, with respect to a connection portion between the one of the second connector and the two of first inclined portions, to a side of the first connectors in the orthogonal direction, and
• the first inclined portions and the second inclined portions overlap each other on the housing portions as viewed from the axial direction to form overlapping portions.