Power storage device

A power storage device comprising:

• a plurality of power storage cells arranged in a first direction;
• a first heat conduction member with a shape extending from one end side power storage cell disposed at an end portion on one side in the first direction among the power storage cells to another end side power storage cell disposed at an end portion on another side in the first direction among the power storage cells;
• a second heat conduction member with a shape extending from the one end side power storage cell to the other end side power storage cell;
• a first connecting member connecting the first heat conduction member and the power storage cells;
• and
• a second connecting member connecting the second heat conduction member and the power storage cells, wherein each of the power storage cells is provided with a cell case including a valve mounting surface on which a safety valve is provided,
• the first heat conduction member faces a portion of the valve mounting surface on one side of the safety valve in a second direction orthogonal to both the first direction and an up-down direction,
• the second heat conduction member faces a portion of the valve mounting surface on another side of the safety valve in the second direction,
• the first connecting member is provided between the valve mounting surface of each of power storage cells disposed in odd-numbered positions among the power storage cells from the one end side power storage cell to the other end side power storage cell, and the first heat conduction member, and
• the second connecting member is provided between the valve mounting surface of each of power storage cells disposed in even-numbered positions among the power storage cells from the one end side power storage cell to the other end side power storage cell, and the second heat conduction member.