Energy storage device

Abstract

To provide an energy storage device that can suppress water ingress into the exhaust path and water contact with the energy storage cells. [Solution] The energy storage device 10 comprises a plurality of energy storage cells 100, a lower case including a bottom wall 212, and a partition plate 250 provided between the plurality of energy storage cells and the bottom wall. A safety valve SV is provided on the lower surface of each energy storage cell 100. The bottom wall 212 has a support portion 212a that supports the partition plate, and a groove portion 212b that is convex downward from the support portion and extends in one direction. The partition plate 250 has a connecting portion 252 connected to the support portion, and a cover portion 254 located above the groove portion and forming a smoke exhaust path S together with the groove portion. The cover portion 254 has a plurality of through holes 254h, each provided at a position facing each safety valve SV.

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