A battery assembly for an electric vehicle including a first battery unit, a DC/DC converter, and a battery receptacle for selectively receiving a second battery unit. The first battery unit is electrically connected to the DC/DC converter. Moreover, a first electric connection interface is positioned in the battery receptacle and is electrically connected to the DC/DC converter. Additionally, a vehicle including such a battery assembly is presented. Furthermore, a method for operating an electric vehicle is explained. A first operational mode includes electrically connecting the first battery unit to an electric traction machine and electrically connecting the second battery unit to the first battery unit. A second operational mode includes electrically connecting the second battery unit to the electric traction machine.

A battery pack according to an embodiment of the present disclosure includes at least one battery cell including a vent portion configured to force gas out; and a pack case in which the at least one battery cell is accommodated such that the vent portion faces a lower side of the battery pack. The vent portion is exposed from the battery pack.

A battery pack according to an embodiment of the present disclosure includes at least one battery cell including a vent portion configured to force gas out; and a pack case in which the at least one battery cell is accommodated such that the vent portion faces a lower side of the battery pack. The vent portion is exposed from the battery pack.

A thermal regulation system for electric vehicle configured to convert an external source of electrical energy to an alternative supply of on board stored energy for use in conditioning a temperature of a battery pack, the thermal regulation system including a fluid circuit configured to circulate a heat conducting fluid medium, the fluid circuit comprising at least one mechanism for affecting at least one of a temperature change, pressure change, or a combination thereof to the heat conducting fluid medium, wherein the at least one mechanism is powered by electrical power from an external charging station, and a heat exchanger configured to enable a transfer of thermal energy between heat conducting fluid medium and a battery pack of an electric vehicle.

An electric vehicle battery disconnect bracket configured disconnect one or more battery cells or modules experiencing a thermal event within a battery pack to mitigate propagation of the thermal event throughout the battery pack, including a bracket body formed of a first material on a first major surface of the body, and a second material on an opposing second major surface of the body, the first material having a larger coefficient of thermal expansion than the second material, such that an increase in temperature above a defined threshold experienced by the body causes the first material to expand more than the second material, thereby transitioning the body from a first equilibrium state representing a closed, conductive position to a second equilibrium state representing an open, isolation position.

An electric vehicle battery disconnect bracket configured disconnect one or more battery cells or modules experiencing a thermal event within a battery pack to mitigate propagation of the thermal event throughout the battery pack, including a bracket body formed of a first material on a first major surface of the body, and a second material on an opposing second major surface of the body, the first material having a larger coefficient of thermal expansion than the second material, such that an increase in temperature above a defined threshold experienced by the body causes the first material to expand more than the second material, thereby transitioning the body from a first equilibrium state representing a closed, conductive position to a second equilibrium state representing an open, isolation position.

A vehicle battery pack support device applicable to various classes of vehicles and allowing weight reduction and cost reduction. The vehicle battery pack support device suspends a battery pack at a side rail constituting a ladder frame of a vehicle and includes a frame-side bracket secured by bolts to an outer side face of the side rail at a plurality of bolt fastening parts thereof arrayed in a grid arrangement. An elastic coupling part elastically couples the battery pack and the frame-side bracket. A spacer is interposed between the outer side face of the side rail and the frame-side bracket. The spacer includes a plurality of columnar members corresponding to the plurality of bolt fastening parts and a connecting part that connects the plurality of columnar members.

Provided is a vehicle battery device in which components are reduced, a compact configuration can be achieved, and connection with the outside can be easily performed. A vehicle battery device includes: a battery cell mounting part accommodating a battery cell group constituted by a plurality of laminated battery cells; and an interface box integrating connection functions between the battery cell mounting part and the outside, wherein the battery cell mounting part is connected to at least one of two opposing side surfaces in an outer surface of the interface box, and has an end plate on an end surface opposite an end surface connected to the interface box; and the battery cell group of the battery cell mounting part is compressed and sandwiched between the side surface of the interface box and the end plate in a lamination direction of the battery cells.

Provided is a vehicle battery device in which components are reduced, a compact configuration can be achieved, and connection with the outside can be easily performed. A vehicle battery device includes: a battery cell mounting part accommodating a battery cell group constituted by a plurality of laminated battery cells; and an interface box integrating connection functions between the battery cell mounting part and the outside, wherein the battery cell mounting part is connected to at least one of two opposing side surfaces in an outer surface of the interface box, and has an end plate on an end surface opposite an end surface connected to the interface box; and the battery cell group of the battery cell mounting part is compressed and sandwiched between the side surface of the interface box and the end plate in a lamination direction of the battery cells.

A battery charging management system includes a plurality of sockets combinable with a plurality of devices onto which a plurality of battery packs are mounted; a binding controller configured to receive state information of the plurality of battery packs from the plurality of devices, determine a priority of the plurality of devices to be allocated to the plurality of sockets according to a charging strategy selected based on the state information, and allocate one of the plurality of sockets to one of the plurality of devices or releasing the allocating; a charging controller configured to control charging of the plurality of battery packs of the plurality of devices electrically connected to a charging circuit based on the state information received by the binding controller; and a distributor configured to switch an electrical connection between the charging circuit and the plurality of battery packs.