POWER STORAGE ELEMENT UNIT AND METHOD FOR DESIGNING POWER STORAGE ELEMENT UNIT

To provide a power storage element unit capable of easily adjusting battery capacity.SOLUTION: A power storage element unit includes: a housing box; and a plurality of power storage element groups which are housed in the housing box and electrically connected in series. The power storage element group includes: at least one power storage element body which is electrically connected to another power storage element group and spreads in the plane direction; and at least one dummy body which spreads in the same plane direction as the power storage element. The power storage element body and the dummy body have the same thickness in the thickness direction orthogonal to the plane direction.SELECTED DRAWING: Figure 8 【課題】電池容量を容易に調整することができる蓄電素子ユニットを提供する。【解決手段】蓄電素子ユニットは、収納箱と、収納箱に収容され、電気的に直列に接続されている複数の蓄電素子群と、を備える。蓄電素子群は、他の蓄電素子群と電気的に接続され、面方向に広がる少なくとも１つの蓄電素子体と、蓄電素子体と同一の面方向に広がる少なくとも１つのダミー体と、を有する。蓄電素子体及びダミー体は、面方向に直交する厚み方向において同一の厚みを有している。【選択図】図８