Connection member

A connection member configured to electrically connect respective storage elements to each other in a power storage device constituted by a plurality of storage elements, the connection member comprising:

• an electrically conductive substrate;
• and
• a plurality of connecting portions configured to connect to electrodes of the respective storage elements, and cut off electric connection with the storage elements by fusing at a time when a current of a predetermined value or more flows therein,
• wherein each connecting portion of the plurality of connecting portions is formed by performing punching along a punching axis on the electrically conductive substrate,
• wherein each connecting portion comprises:
• a first extension portion extending in a first direction perpendicular to the punching axis;
• a second extension portion extending from the first extension portion and extending, in a second direction perpendicular to the punching axis;
• and
• a third extension portion extending from the second extension portion in a direction parallel to the first direction,
• a first bent portion that is part of the first extension portion and is bent so as to ascend or descend with respect to other portions of the first extension portion along the punching axis, and extend in the first direction, and
• a second bent portion that is part of the second extension portion and is bent so as to ascend or descend with respect to other portions of the second extension portion along the punching axis, and extend in the second direction
• wherein the first extension portion is offset with respect to at least one of the second extension portion or the third extension portion, along the punching axis,
• wherein the first and second bent portions are formed by bending the first extension portion and the second extension portion in the punching axis along their respective extending directions, and
• wherein the first bent portion and the second bent portion each have a planar shape that is straight.