POWER STORAGE DEVICE PROVIDED WITH CURRENT INTERRUPTER

摘要

A power storage device of the present application comprises: an electrode terminal; an electrode assembly; and a current interrupter. The current interrupter comprises: a first conductive member that is electrically connected to the electrode terminal; a second conductive member that is electrically connected to the electrode assembly; a first seal member; a cover that holds the first conductive member, the second conductive member and the first seal member; and a second seal member. The first conductive member and the second conductive member separate from each other and interrupt a conductive path when the pressure inside the case exceeds a prescribed value. The first seal member contacts the second conductive member and the cover and seals and seals each respective point of contact. The cover has: an upper end that is sandwiched between an upper surface of a large-diameter portion of the electrode terminal and a lower surface of a terminal installation surface of the case; and a protruding portion that protrudes from the upper end and extends along the upper surface of the large-diameter portion of the electrode terminal. The second seal member contacts a lower surface of the case and the protruding portion of the cover and seals each respective point of contact.