A battery pack includes a housing and multiple electrode core strings electrically connected to each other and disposed in the housing. The housing includes a housing body which includes sub-housings connected to each other. A sub-housing includes at least one reinforcing plate and a top plate and a bottom plate oppositely arranged in a first direction. The reinforcing plate is arranged between and is connected to the top plate and the bottom plate, and divides an interior of the corresponding sub-housing into multiple accommodating cavities. At least one accommodating cavity includes at least one electrode core string which includes electrode core assemblies connected and arranged in a second direction. The electrode core assemblies are disposed in an encapsulation film. A length of the electrode core string extends in the second direction. The housing includes a mounting component that is configured to be connected and fixed to an external load.

A battery pack includes a housing and multiple electrode core strings electrically connected to each other and disposed in the housing. The housing includes a housing body which includes sub-housings connected to each other. A sub-housing includes at least one reinforcing plate and a top plate and a bottom plate oppositely arranged in a first direction. The reinforcing plate is arranged between and is connected to the top plate and the bottom plate, and divides an interior of the corresponding sub-housing into multiple accommodating cavities. At least one accommodating cavity includes at least one electrode core string which includes electrode core assemblies connected and arranged in a second direction. The electrode core assemblies are disposed in an encapsulation film. A length of the electrode core string extends in the second direction. The housing includes a mounting component that is configured to be connected and fixed to an external load.

A switching unit is included, which is arranged between a first electric storage unit of a first electric storage device configured to be connectable in parallel with a second electric storage device and a wire electrically connecting the first electric storage device and the second electric storage device, and which is configured to switch a electrical connection relationship of the wire and the first electric storage unit. A restricting unit is included, which is connected in parallel with the switching unit between the wire and the first electric storage unit, has a higher resistance than the switching unit, and is configured to cause a current to flow in the direction from the wire to the first electric storage unit and suppress current flowing in the direction from the first electric storage unit to the wire.

A switching unit is included, which is arranged between a first electric storage unit of a first electric storage device configured to be connectable in parallel with a second electric storage device and a wire electrically connecting the first electric storage device and the second electric storage device, and which is configured to switch a electrical connection relationship of the wire and the first electric storage unit. A restricting unit is included, which is connected in parallel with the switching unit between the wire and the first electric storage unit, has a higher resistance than the switching unit, and is configured to cause a current to flow in the direction from the wire to the first electric storage unit and suppress current flowing in the direction from the first electric storage unit to the wire.

An embodiment battery pack includes battery modules each including a plurality of battery cells stacked and connected in parallel, the battery modules being arranged adjacent to each other, a housing fixedly surrounding the battery modules, and an auxiliary rigid plate disposed between the battery modules so as to face side surfaces of the battery modules, the auxiliary rigid plate being coupled to the housing and defining a unitary rigid body together with the housing.

An embodiment battery pack includes battery modules each including a plurality of battery cells stacked and connected in parallel, the battery modules being arranged adjacent to each other, a housing fixedly surrounding the battery modules, and an auxiliary rigid plate disposed between the battery modules so as to face side surfaces of the battery modules, the auxiliary rigid plate being coupled to the housing and defining a unitary rigid body together with the housing.

The present disclosure provides a battery core assembly, a battery, a battery pack, and a vehicle. The battery core assembly includes an encapsulation film and an electrode core assembly encapsulated in the encapsulation film. The electrode core assembly includes an electrode core assembly body and two electrode lead-out members of opposite polarities electrically connected to the electrode core assembly body. The electrode core assembly body includes at least two electrode cores connected in parallel. Each of the electrode cores includes an electrode core body and two tabs of opposite polarities that are electrically connected to the electrode core body. The electrode core assembly body further includes a tab support. The two electrode lead-out members are respectively electrically connected to one of the tab supports located two sides of the electrode core assembly body in a first direction.

A battery core assembly includes an encapsulation film and multiple electrode core assemblies disposed in the encapsulation film. The electrode core assemblies are connected to form an electrode core string, and each of the electrode core assemblies includes at least one electrode core. A spacer is disposed between two adjacent electrode core assemblies, the first spacer divides an accommodating space inside the encapsulation film into multiple accommodating cavities, cavity walls of the accommodating cavities includes the first spacer and the encapsulation film connected to the first spacer, and the electrode core assemblies are respectively accommodated in the accommodating cavities. The first spacer includes at least one first liquid reservoir, and the at least one first liquid reservoir communicates with one of accommodating cavities on both sides of the first spacer.

The present disclosure relates to an energy storage device for a water vessel, the energy storage device comprising: a first connection and a second connection, an energy storage unit with a first pole and a second pole, a first connection line between the first pole and the first connection and a second connection line between the second pole and the second connection, wherein the first connection line has a first node, which is connected with the first pole, and a second node, which is connected with the first connection, and wherein the second connection line has a fourth node, which is connected with the second pole and the second connection, a third connection line between the first node and the second node, with a third node and an inductance between the third node and the second node, and a fourth connection line between the third node and the fourth node with a free-wheeling diode, which is arranged for a current from the fourth node to the third node in forward direction, a first switching unit in the first connection line between the first node and the second node for switching a current from the first node to the second node and a third switching unit in the third connection line between the first node and the third node for switching a current from a first node to the third node, and a control unit, which is configured for controlling the first switching unit and/or the third switching unit for limiting the strength of a discharge current for the energy storage unit to a predefined discharge threshold value. The disclosure further relates to an energy storage system with at least two such energy storage devices and control method for the energy storage device and for the energy storage system and a pre-charging circuit.

The present disclosure relates to an energy storage device for a water vessel, the energy storage device comprising: a first connection and a second connection, an energy storage unit with a first pole and a second pole, a first connection line between the first pole and the first connection and a second connection line between the second pole and the second connection, wherein the first connection line has a first node, which is connected with the first pole, and a second node, which is connected with the first connection, and wherein the second connection line has a fourth node, which is connected with the second pole and the second connection, a third connection line between the first node and the second node, with a third node and an inductance between the third node and the second node, and a fourth connection line between the third node and the fourth node with a free-wheeling diode, which is arranged for a current from the fourth node to the third node in forward direction, a first switching unit in the first connection line between the first node and the second node for switching a current from the first node to the second node and a third switching unit in the third connection line between the first node and the third node for switching a current from a first node to the third node, and a control unit, which is configured for controlling the first switching unit and/or the third switching unit for limiting the strength of a discharge current for the energy storage unit to a predefined discharge threshold value. The disclosure further relates to an energy storage system with at least two such energy storage devices and control method for the energy storage device and for the energy storage system and a pre-charging circuit.