| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique to prevent a power storage device to be conducted again after current conduction of the power storage device is interrupted.SOLUTION: The power storage device includes: a case; an electrode assembly accommodated in the case; an electrode terminal provided in the case; and a current interrupting device which is fixed to the case and interrupts a current conduction path between the electrode assembly and the electrode terminal. The current interrupting device includes: a diaphragm which is deformed by receiving a pressure inside the case; and a current conduction member which interrupts the current conduction path by being divided into a first current conduction part and a second current conduction part when the diaphragm is deformed due to increase of a pressure inside the case. At least a part of the diaphragm is formed of a magnetic body, or the magnetic body is bonded to at least a part of the diaphragm. Further, the current interrupting device includes a magnet fixed to the case. The magnet is, with respect to the diaphragm, arranged at the side in which the diaphragm is deformed when the pressure inside the case increases. |
