A battery module includes: a first battery cell assembly having at least one battery cell; a second battery cell assembly spaced apart from the first battery cell assembly by a predetermined distance and having at least one battery cell; a bottom plate configured to integrally support the second battery cell assembly and the first battery cell assembly; and a top plate disposed above the bottom plate to integrally cover the first battery cell assembly and the second battery cell assembly.

A battery module includes: a first battery cell assembly having at least one battery cell; a second battery cell assembly spaced apart from the first battery cell assembly by a predetermined distance and having at least one battery cell; a bottom plate configured to integrally support the second battery cell assembly and the first battery cell assembly; and a top plate disposed above the bottom plate to integrally cover the first battery cell assembly and the second battery cell assembly.

A power supply device includes: a plurality of secondary battery cells; a pair of end plates disposed on end surfaces of a battery stack obtained by connecting the plurality of secondary battery cells to sandwich the battery stack; and a fastening member for fixing the end plates to each other. The end plate includes a first band body protruding from a main surface of the end plate on an upper end side of the end plate and second a band body protruding from the main surface of the end plate in a middle of the end plate. A space is formed in the second band body between the second band body and the main surface of the end plate.

The disclosure describes a battery pack including at least one battery cell, an outer housing that has at least one first housing element, and a cell holder configured to receive the at least one battery cell. In this case the first housing element is constituted by a two-component part that includes at least one first hard component element, one second hard component element and at least one soft component element, the first hard component element and the second hard component element fixedly connected to each other via the at least one soft component element.

The disclosure describes a battery pack including at least one battery cell, an outer housing that has at least one first housing element, and a cell holder configured to receive the at least one battery cell. In this case the first housing element is constituted by a two-component part that includes at least one first hard component element, one second hard component element and at least one soft component element, the first hard component element and the second hard component element fixedly connected to each other via the at least one soft component element.

In order to provide a power supply device and the like in which stretchability is secured while strength is enhanced in fastening of a battery stack body where a plurality of secondary battery cells are stacked, the power supply device includes: a plurality of secondary battery cells each including a prismatic exterior can; a pair of end plates covering both end surfaces of a battery stack body in which the plurality of secondary battery cells are stacked; and a plurality of fastening members (15) made of metal each having a plate shape extending in a stack direction of the plurality of secondary battery cells and disposed on an opposing side surface of the battery stack body to fasten the end plates to each other, in which each of the plurality of fastening members (15) includes fastening portion (15c) fixed to the end plate at each of both ends in a longer direction, and intermediate portion (15a) coupling fastening portions (15c) with each other, and fastening portions (15c) is higher in strength than intermediate portion (15a), and intermediate portion (15a) is higher in stretchability than fastening portions (15c).

A battery pack includes: a plurality of battery cells arranged side by side in a first direction, each of the plurality of battery cells including a plurality of electrode terminals disposed side by side in a second direction orthogonal to the first direction; and a case member that accommodates the plurality of battery cells, the case member including a side surface portion extending in a direction orthogonal to the first direction or in a direction orthogonal to the second direction and a reinforcing rib provided on the side surface portion. The reinforcing rib extends in a third direction orthogonal to the first direction and the second direction or in a direction obliquely intersecting the third direction.

A safety structure for a battery pack assembly includes: an inner layer adapted to be disposed proximate to a plurality of cells of the battery pack assembly, wherein the inner layer defines at least one hollow channel open towards the plurality of cells and configured to vent any of heat, gas, particles, and fire away from selected ones of the plurality of cells; an outer layer adapted to be disposed distal to the plurality of cells of the battery pack assembly; and a resilient layer disposed between the inner layer and the outer layer. The inner layer is a fire-resistant layer comprising a heat-resistant and/or flame-resistant material. The outer layer is a structural layer comprising a substantially rigid material. The resilient layer is adapted to decouple the inner layer from deformation of the outer layer.

A battery charging and discharging device includes an enclosure defining an interior compartment, where the enclosure further includes an access opening configured to allow access to the interior compartment, a moveable cover configured to move between a closed position covering the access opening and to prevent access to the interior compartment, and an open position enabling access to the interior compartment, a battery storage compartment disposed within the interior compartment and configured to receive, retain and release a plurality of rechargeable batteries, and a releasable attachment device configured to releasably attach the enclosure to one of a movable object or a stationary fixture.

A battery charging and discharging device includes an enclosure defining an interior compartment, where the enclosure further includes an access opening configured to allow access to the interior compartment, a moveable cover configured to move between a closed position covering the access opening and to prevent access to the interior compartment, and an open position enabling access to the interior compartment, a battery storage compartment disposed within the interior compartment and configured to receive, retain and release a plurality of rechargeable batteries, and a releasable attachment device configured to releasably attach the enclosure to one of a movable object or a stationary fixture.