POWER STORAGE DEVICE

A power storage device includes: an electrode assembly (200) including a first electrode (240), a second electrode (210) having a polarity different from a polarity of the first electrode (240), and a first electrode tab group (250, 280) electrically connected to the first electrode (240); a case (100) that accommodates the electrode assembly (200); a first conductive member (420) connected to the first electrode tab group (250, 280); a second conductive member (440) connected to the first conductive member (420); and an insulating member (460) disposed between the first conductive member (420) and the second conductive member (440), wherein the first electrode tab group (250, 280) is located at one end portion of the electrode assembly (200), and the insulating member (460) is connected to the first conductive member (420).