According to one embodiment, a battery module includes first to fourth batteries and a case in which these batteries are housed. In the case, a first partition wall partitions the first and the second batteries and partitions the third and fourth batteries in a first direction, and a second partition wall partitions the first and third batteries and partitions the second and fourth batteries in a second direction intersecting the first direction. A fastening member fastens case members to each other at an intersection of the above two partition walls. The case includes a rib protruding on a surface of at least one of the first and second partition walls.

The present disclosure provides a battery compartment and a handle for use in a transportation vehicle. The battery compartment includes: a battery mount having at least two battery mounting grooves spaced apart from each other; a connection electrode on the battery mount and between adjacent battery mounting grooves; a battery compartment cover detachably connected to the connection electrode; and a pushing-out assembly on the connection electrode, wherein the pushing-out assembly is configured to provide a force for moving the battery compartment cover away from the connection electrode.

Methods and systems are provided for a battery encapsulant. In one example, a method may include a battery encapsulant surrounding one or more battery cells of a vehicle battery, where the encapsulant comprises a Young Modulus between 0.05 to 0.15 GPa after being cured.

In order that the output voltage of a battery pack can be switched and the battery pack can be shared among different voltage electric appliances, this battery pack has a switching mechanism that switches outputting a low voltage by parallel connection of two cell units or outputting a high voltage by series connection of the two cell units, said two cell units each being composed of a plurality of cells connected in series, wherein the switching mechanism is configured from a change-over switch having an operation lever (452). The change-over switch is embedded in a battery pack (400), and an operator is able to manually switch outputting 18 V by setting the operation lever (452) at a first position or outputting 36 V by setting the operation lever (452) at a second position.

An electric battery (1) for an electrically or partially electrically driven motor vehicle, movable or stationary unit has a battery housing (5) and a plurality of battery cells (2) arranged therein. According to the invention, the battery housing (5) is made from a material containing silicon and/or calcium and/or rubber and/or silicone to produce such an electric battery (1) with a minimum of economic and technical design effort while ensuring said battery is still highly operationally reliable.

The present invention provides a small electronic device including an actuation component that operates using an electromagnetic force, a power storage device, and a case in which the actuation component and the power storage device are stored, in which the power storage device is formed of a non-magnetic body.

This application relates to the field of battery technologies, and discloses a method for updating an OCV-SOC curve of a battery pack, a battery management system, and a vehicle. The method for updating an OCV-SOC curve of a battery pack includes: obtaining information that represents an aging state of the battery pack; obtaining a current aging characteristic parameter of the battery pack based on a current OCV-SOC curve of the battery pack and the information; and updating the OCV-SOC curve of the battery pack based on the current aging characteristic parameter and the current OCV-SOC curve of the battery pack. In this application, the OCV-SOC curve of the battery pack is updated based on the aging state of the battery pack, thereby obtaining an OCV-SOC curve that meets the aging state of the battery pack and making it convenient to estimate the online state of the battery pack more accurately.

The present application discloses a battery to alleviate the impact on the main body of the battery and for improving the safety performance of the battery. The battery comprises a package case and a circuit board, wherein the package case forms a first surface and a buffer member is arranged between the circuit board and the first surface. In the present application, the buffer member between the circuit board and the first surface may alleviate the force received on the first surface, thereby alleviating the impact on the electrode assembly of the battery, avoiding the damage of the positive and negative electrode plates and the short circuit caused by the contact between the positive and negative electrodes, and improving the safety of battery.

The present invention provides a battery module comprising: a cell assembly including a plurality of battery cells arrayed in a second direction different from a first direction while each cell axis is directed in the first direction; and an accommodation case configured to accommodate the cell assembly, wherein in the accommodation case, a suction hole configured to take a gas into a peripheral space located on a side of the cell assembly in the first direction and an exhaust hole configured to exhaust the gas having passed between the plurality of battery cells are provided in one surface of two surfaces that sandwich the cell assembly in the second direction, and a rib extending in the second direction is provided in the peripheral space.

A method for cooling a battery for an electrically powered aircraft, wherein the battery has battery cell(s) and a battery cooling device with a latent heat store. The method includes: A) transferring a first amount of heat from the battery cell to the latent heat store, causing a phase transition in the phase change material, B) removing the battery from the aircraft, C) establishing an operative connection of the battery cooling device to a cooling circuit of a separate second cooling device, D) passing a flow of a coolant through the cooling circuit, E) transferring a second amount of heat from the latent heat store to the coolant, thus causing a phase transition to occur in the phase change material, and F) disconnecting the battery cooling device from the cooling circuit. Step E and/or F are carried out at least partially simultaneously with a charging process of the battery.