| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device that can prevent a terminal and a terminal wall from being short-circuited to each other.SOLUTION: A power storage device 100 has a case 1, a terminal 5 and a current cutoff device 30. The terminal 5 intercommunicates with the inside and outside of the case through openings 11, 13 formed in the terminal wall 9 of the case. The terminal 5 has a pillar-shaped portion 14 inserted in the openings, and a base portion 15 located inside the case. An annular seal member 26 for sealing the gap between the terminal and the terminal wall at the seal portion is disposed between the terminal and the terminal wall. Annular first insulating members 22, 24 are disposed in at least one of the gap between the seal member and the terminal and the gap between the seal member and the terminal wall. An annular second insulating member 35 is disposed at a first space 20 nearer to the inside of the case than the seal portion in the space between the terminal and the terminal wall. Any one of the seal member, the first insulating member and the second insulating member is disposed from the end face at the case outside of the first space to the end face at the case inside of the first space in the first space. |
