| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for enhancing the operation accuracy of the current interrupter of a power storage device.SOLUTION: The power storage device includes a case, an electrode assembly housed in the case, and an electrode terminal fixed to the wall of the case. The power storage device includes an electrification path formed between the electrode assembly and the electrode terminal. The power storage device includes a current interrupter which brings about a state where a current flows through the electrification path when the pressure in the case is less than a current interruption pressure value, and brings about a state where a current does not flow through the electrification path when the pressure in the case is equal to or higher than a current interruption pressure value. The power storage device includes a gas passage part for passing gas between the inside and outside of the case. In the power storage device, the gas passage part passes gas depending on the amount of gas generated in the case. |
