A structural component for a vehicle may include an extrusion that is extruded into a first state and then expanded into a second state. The extrusion in the first state has a reduced size relative to a desired final size. The extrusion in the first state is placed within a die that defines the desired final size. Pressurized water is distributed within internal cells of the extrusion in the first state such that the walls defining the internal cells are expanded into engagement with the surface of the die, thereby creating surface features or sealing interfaces with tight tolerances. The relative shape of the die and the extrusion in the first state defines an open space herebetween, into which the extrusion may expand to define the final shape. Some of the internal cells may be plugged such that they are not provided with pressurized water.

A battery pack includes a plurality of battery modules; a barrier beam disposed between neighboring battery modules among the plurality of battery modules; and a housing accommodating the plurality of battery modules and the barrier beam.

A battery pack is a battery pack for an electric tool. The battery pack is attachable to a tool body. The tool body includes a tool attachment part to which a tool is to be attached and a driver configured to drive the tool. The battery pack includes an electricity accumulator, a battery case, and a cushioning structure. The electricity accumulator includes an all-solid-state battery. The electricity accumulator is configured to accumulate electric power to be supplied to the driver. The battery case houses the electricity accumulator. The cushioning structure is configured to suppress acceleration acting on the electricity accumulator from being changed.

A reinforcement frame (1) for a battery pack (2) of an electric or hybrid vehicle (37), the battery pack including a plurality of battery cells lying on and secured to a shield element, the reinforcement frame including at least: a reinforcement frame fastening portion (3) provided to be secured to both the battery pack and the body of the vehicle, and a reinforcement frame hollow portion (4) provided to surround at least the battery cells.

A battery pack includes a housing, and at least one housing structural beam and multiple electrode core strings electrically connected to one another located in the housing. The housing includes a housing body, including a top plate and a bottom plate arranged opposite to each other in a first direction. The structural beam is located between the top plate and the bottom plate, the at least one structural beam is connected to the top plate and the bottom plate, and divides the interior of the housing into multiple accommodating cavities, and at least one electrode core string is provided in at least one accommodating cavity. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load. The electrode core string includes multiple electrode core assemblies sequentially disposed in a second direction and connected in series.

A battery pack includes a housing, and at least one housing structural beam and multiple electrode core strings electrically connected to one another located in the housing. The housing includes a housing body, including a top plate and a bottom plate arranged opposite to each other in a first direction. The structural beam is located between the top plate and the bottom plate, the at least one structural beam is connected to the top plate and the bottom plate, and divides the interior of the housing into multiple accommodating cavities, and at least one electrode core string is provided in at least one accommodating cavity. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load. The electrode core string includes multiple electrode core assemblies sequentially disposed in a second direction and connected in series.

An apparatus for measuring a pressure of battery cells includes: a battery cell; a pressure sensor configured to measure the surface pressure of the battery cell; and a first plate arranged between the battery cell and the pressure sensor so as to be in contact with the battery cell and the pressure sensor.

A battery pack has improved safety against external impacts, and an energy storage system and a vehicle including the same. The battery pack includes a battery module having at least one battery cell; a tray having a plate shape so that the battery module is mounted thereon; a reinforcing member having a plate shape and mounted on the tray, the reinforcing member having at least a portion coupled to the tray and the other portion supporting the battery module upward, the reinforcing member being configured to form a space separated from the tray below the other portion supporting the battery module; and an elastic member constrained in the separated space in an elastically deformed state and configured to press a lower surface of the reinforcing member upward.

A battery pack has improved safety against external impacts, and an energy storage system and a vehicle including the same. The battery pack includes a battery module having at least one battery cell; a tray having a plate shape so that the battery module is mounted thereon; a reinforcing member having a plate shape and mounted on the tray, the reinforcing member having at least a portion coupled to the tray and the other portion supporting the battery module upward, the reinforcing member being configured to form a space separated from the tray below the other portion supporting the battery module; and an elastic member constrained in the separated space in an elastically deformed state and configured to press a lower surface of the reinforcing member upward.

A battery module includes a battery cell assembly including at least one battery cell, a base plate configured to support a lower side of the battery cell assembly, and a pressing pulley elastically connected to the base plate and configured to cover an upper side of the battery cell assembly, the pressing pulley being elastically deformable in a vertical direction of the battery cell assembly according to cell swelling of the battery cell assembly.