Power storage device

A power storage device comprising:

• a module stacked body including a plurality of power storage modules stacked in a first direction and having a first side surface extending in the first direction and a second direction orthogonal to the first direction and a second side surface adjacent to the first side surface and extending in the first direction and a third direction orthogonal to the first side surface and the second direction;
• a first restraint plate and a second restraint plate stacked on both sides of the module stacked body in the first direction and applying a restraint load to the module stacked body in the first direction;
• a wiring connected to the module stacked body;
• and
• a guide member coupled to the first restraint plate and the second restraint plate and disposing the wiring on the first side surface,
• wherein the guide member includes:
• a wiring guide portion extending in the second direction and guiding the wiring toward the second side surface;
• and
• a first extending portion connected to the wiring guide portion and extending in the first direction, and
• wherein the first extending portion includes:
• a first fixing portion provided in a first end portion that is one end portion of the first extending portion in the first direction and fixed to the first restraint plate;
• and
• a first engagement portion provided in a second end portion that is another end portion of the first extending portion in the first direction and engaged with the second restraint plate so as to be movable in the first direction and the second direction when the power storage modules expand and contract.