| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device capable of suppressing occurrence of stress at an electric conduction portion between a terminal connection member and a lead-out terminal at a nut engagement time.SOLUTION: A secondary battery 10 includes a first insulating member 57 for insulating a terminal connection member 53 and a lid member 15 from each other, and a second insulating member 40 which insulates an external connection terminal 66 and the lid member 15 from each other and is restricted in movement in a direction along an outer surface 15c of the lid member 15. The external connection terminal 66 has a male screw portion 68 into which a nut 70 for fastening a bus bar 60 can be screwed, and a first engagement portion 69. The second insulating member 40 has a second engagement portion 42 engaged with the first engagement portion 69 of the external connection terminal 66. The first engagement portion 69 and the second engagement portion 42 are engaged with each other through the concave/convex engagement relationship in the circumferential direction of the external connection terminal 66.SELECTED DRAWING: Figure 6 |
