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.

A computing device is disclosed. The computing device has a frame including a recessed battery compartment, the recessed battery compartment having a rigid back surface. The computing device further has a closure member having a rigid portion and a flexible portion, wherein a periphery of the closure member is coupled to a peripheral edge of the recessed battery compartment, the flexible portion to permit the rigid portion to move relative to the frame. The computing device further has a battery coupled to one or more of the battery compartment and the closure member, the battery oriented between and substantially adjacent to the rigid back surface of the battery compartment and the closure member.

A computing device is disclosed. The computing device has a frame including a recessed battery compartment, the recessed battery compartment having a rigid back surface. The computing device further has a closure member having a rigid portion and a flexible portion, wherein a periphery of the closure member is coupled to a peripheral edge of the recessed battery compartment, the flexible portion to permit the rigid portion to move relative to the frame. The computing device further has a battery coupled to one or more of the battery compartment and the closure member, the battery oriented between and substantially adjacent to the rigid back surface of the battery compartment and the closure member.

A battery box, a battery, an electric device, and a method and device for manufacturing battery are provided. The battery box includes a support member and an expansion member. The expansion member presses the support member so that the volumetric capacity of an accommodating space for accommodating binder between the support member and the battery cell changes. The volumetric capacity of the accommodating space can be adjusted. Therefore, under the condition that the accommodating space has a relatively large volumetric capacity, it is simple to inject an appropriate amount of binder; and after the binder is injected, the volumetric capacity of the accommodating space is reduced so that the binder spreads throughout the accommodating space. The foregoing box allows for binder injection reduction during battery assembly, thereby reducing the possibility of binder overflow, improving the safety performance of the battery, and also increasing the energy density of the battery.

A battery box, a battery, an electric device, and a method and device for manufacturing battery are provided. The battery box includes a support member and an expansion member. The expansion member presses the support member so that the volumetric capacity of an accommodating space for accommodating binder between the support member and the battery cell changes. The volumetric capacity of the accommodating space can be adjusted. Therefore, under the condition that the accommodating space has a relatively large volumetric capacity, it is simple to inject an appropriate amount of binder; and after the binder is injected, the volumetric capacity of the accommodating space is reduced so that the binder spreads throughout the accommodating space. The foregoing box allows for binder injection reduction during battery assembly, thereby reducing the possibility of binder overflow, improving the safety performance of the battery, and also increasing the energy density of the battery.

The invention relates to a frame structure of a battery housing for a vehicle driven by an electric motor, said frame structure being composed of individual profiled hollow-chamber sections which are designed to be at least two-chambered in the z-direction and are welded together to enclose a battery volume. The end faces 14, 14.1 of two profiled hollow-chamber sections 3, 3.1; 3.1, 3.2; 3.2, 3.3; 3.3, 3 are designed to be stepped, such that an end face 14, 14.1 portion of each of the two profiled hollow-chamber sections 3, 3.1; 3.1, 3.2; 3.2, 3.3; 3.3, 3 borders a lateral surface portion 4, 4.1 of the respective other profiled hollow-chamber section 3, 3.1; 3.1, 3.2; 3.2, 3.3; 3.3, 3.

The invention relates to a frame structure of a battery housing for a vehicle driven by an electric motor, said frame structure being composed of individual profiled hollow-chamber sections which are designed to be at least two-chambered in the z-direction and are welded together to enclose a battery volume. The end faces 14, 14.1 of two profiled hollow-chamber sections 3, 3.1; 3.1, 3.2; 3.2, 3.3; 3.3, 3 are designed to be stepped, such that an end face 14, 14.1 portion of each of the two profiled hollow-chamber sections 3, 3.1; 3.1, 3.2; 3.2, 3.3; 3.3, 3 borders a lateral surface portion 4, 4.1 of the respective other profiled hollow-chamber section 3, 3.1; 3.1, 3.2; 3.2, 3.3; 3.3, 3.

Provided is a power supply device that is configured to dispose each of battery cells at an ideal position while stacking the battery cells to form a battery stack, the power supply device including: battery cells each having an outer covering can in a prismatic shape and having a constant cell thickness; end plates paired for covering both side end surfaces of the battery stack in which battery cells are stacked; and bind bars that are disposed on opposite side surfaces of the battery stack and coupled to the end plates. Bind bar includes pressing piece for pressing an upper surface of each of battery cells adjacent to each other. The power supply device further includes elastomer molding disposed between pressing piece and an upper surface of battery cell, and pressing piece elastically presses the upper surface of battery cell with elastomer molding.

Provided is a power supply device that is configured to dispose each of battery cells at an ideal position while stacking the battery cells to form a battery stack, the power supply device including: battery cells each having an outer covering can in a prismatic shape and having a constant cell thickness; end plates paired for covering both side end surfaces of the battery stack in which battery cells are stacked; and bind bars that are disposed on opposite side surfaces of the battery stack and coupled to the end plates. Bind bar includes pressing piece for pressing an upper surface of each of battery cells adjacent to each other. The power supply device further includes elastomer molding disposed between pressing piece and an upper surface of battery cell, and pressing piece elastically presses the upper surface of battery cell with elastomer molding.

Disclosed is a battery pack including a battery module assembly including two or more battery modules, each of the battery modules having one or more battery cells arranged adjacent to each other in the state of being mounted in cartridges, a base plate allowing the battery module assembly to be loaded thereon, and a hold-down bracket fixing the battery module assembly to the base plate, wherein each of the cartridges includes a step portion having a lower part protruding outwards, the hold-down bracket includes an upper end portion covering upper surfaces of the step portions of the cartridges, a lower end portion coupled to the base plate, and a middle portion connecting the upper end portion and the lower end portion to each other, and a protrusion structure protruding in a direction toward the base plate is formed on the lower end portion.