POWER STORAGE STACK

To provide a power storage stack capable of suppressing an increase in a restraint load due to expansion while suppressing a decrease in energy density.SOLUTION: A power storage stack 100 includes: a plurality of power storage cells 10 stacked in a stacking direction; a first end member 21 and a second end member 22 arranged to sandwich the plurality of power storage cells 10 on both sides of the plurality of power storage cells 10 in the stacking direction; and a connecting member 30 connecting the first end member 21 and the second end member 22. The connecting member 30 includes: a first member 31 connected to the first end member 21; a second member 32 connected to the second end member 22; and an elastic member 33 arranged between the first member 31 and the second member 32 and provided to be elastically deformable in a shear direction.SELECTED DRAWING: Figure 2 【課題】エネルギー密度の低下を抑制しつつ、膨張に伴う拘束荷重の増加を抑制できる蓄電スタックを提供する。【解決手段】蓄電スタック１００は、積層方向に積層された複数の蓄電セル１０と、積層方向における複数の蓄電セル１０の両側に複数の蓄電セル１０を挟み込むように配置された第１端部部材２１および第２端部部材２２と、第１端部部材２１および第２端部部材２２を連結する連結部材３０と、を備える。連結部材３０は、第１端部部材２１に接続された第１部材３１と、第２端部部材２２に接続された第２部材３２と、第１部材３１および第２部材３２との間に配置され、せん断方向に弾性変形可能に設けられた弾性部材３３とを含む。【選択図】図２