A battery module includes a plurality of battery cells; an accommodation part to surround circumferences of the battery cells and having an accommodation space therein in which the battery cells are accommodated, the accommodation part having opened upper and lower portions; a cooling fluid supply part connected to one side of the accommodation part to supply a cooling fluid into the accommodation part; a cooling fluid discharge part connected to the other side of the accommodation part to discharge the cooling fluid within the accommodation part; a first blocking part above the accommodation part to block the opened upper portion of the accommodation part; and a second blocking part below the accommodation part to block the opened lower portion of the accommodation part and support the battery cells. A path through which the cooling fluid supplied into the accommodation space flows is defined between the battery cells.

The invention relates to a battery housing (1) for a vehicle driven by an electric motor, which is to be installed in the floor region of a vehicle, having a frame (2), which encloses at least one battery module, and a floor (3), which is connected to the frame (2), The floor (3) takes the form of a sandwich construction and forms hollow chambers (18, 18′), which can be used as temperature-control channels for guiding through a fluid by virtue of end-side openings in adjacent hollow chambers (18, 18′) being connected to one another at their two ends.

A tray for a battery pack, includes a bottom plate, a frame, an external connecting tube and an adapter piece. The frame is connected to the bottom plate and defines an accommodating cavity with the bottom plate, and includes a first side beam, where a first accommodating groove is formed on the first side beam. An inner end of the external connecting tube extends into the first side beam. The adapter piece is disposed on the bottom plate and comprises a joining flow channel, and includes a first connecting portion and a second connecting portion, where the first connecting portion is connected to the bottom plate, and the second connecting portion is connected to the inner end of the external connecting tube. The adapter piece is disposed in the first accommodating groove, and the first connecting portion and the second connecting portion are buried in first side beam.

A tray for a battery pack, includes a bottom plate, a frame, an external connecting tube and an adapter piece. The frame is connected to the bottom plate and defines an accommodating cavity with the bottom plate, and includes a first side beam, where a first accommodating groove is formed on the first side beam. An inner end of the external connecting tube extends into the first side beam. The adapter piece is disposed on the bottom plate and comprises a joining flow channel, and includes a first connecting portion and a second connecting portion, where the first connecting portion is connected to the bottom plate, and the second connecting portion is connected to the inner end of the external connecting tube. The adapter piece is disposed in the first accommodating groove, and the first connecting portion and the second connecting portion are buried in first side beam.

A secondary battery may include a cell body member accommodating an electrode assembly therein, including three sealing sides and provided adjacently to a cooling plate member; and the cell body member, in contact with a heat conductive member on a lower surface thereof includes a surface area-increasing groove formed to be concave in the lower surface thereof and the lower surface is a region in which a sealing portion is not formed, the heat conductive member is provided in at least a portion between the cell body member and the cooling plate member to form a heat path for transferring heat from the cell body member to the cooling plate member, the surface area-increasing groove includes a curved-region in a cross section in a thickness direction of the cell body member, and the curved-region is in contact with the heat conductive member.

A secondary battery may include a cell body member accommodating an electrode assembly therein, including three sealing sides and provided adjacently to a cooling plate member; and the cell body member, in contact with a heat conductive member on a lower surface thereof includes a surface area-increasing groove formed to be concave in the lower surface thereof and the lower surface is a region in which a sealing portion is not formed, the heat conductive member is provided in at least a portion between the cell body member and the cooling plate member to form a heat path for transferring heat from the cell body member to the cooling plate member, the surface area-increasing groove includes a curved-region in a cross section in a thickness direction of the cell body member, and the curved-region is in contact with the heat conductive member.

The disclosure provides a charger, a charging device, an energy supply device and a control method of the charger. The charger comprises a housing, a charging position, a charging port and a first heat dissipation unit. The charger comprises a base and a supporting part. The supporting part is arranged on the base. The charging position is arranged on the base and distributed around the supporting part. The charging port is arranged on the charging position and matched with a battery pack. The first heat dissipation unit is arranged on the supporting part for heat dissipation of the battery pack. With the charger of the disclosure, multiple battery packs can be charged at the same time.

This application provides a battery, an electric apparatus, and a method and a device for preparing battery, relating to the field of battery technologies. The battery includes a battery cell having an electrode terminal; a fire prevention pipeline, configured to accommodate a fire prevention medium; and a fastener, configured to fasten the fire prevention pipeline. The fastener is connected to the electrode terminal.

A battery pack includes a battery module housing configured to receive a plurality of battery cells, a battery pack case configured to receive one or more of battery module housings, a water tank located above the battery module housings, and a heat sink located under the battery module housings. At least a portion of the surface of the battery module housing that faces the water tank is open, whereby, when fire breaks out in the battery cell, it is possible to rapidly and accurately prevent spread of flames of the ignited battery cell.

A battery pack includes: a battery pack frame that includes a plurality of accommodating portions accommodating one battery cell laminate; a plurality of battery cell laminates that are accommodated in the respective plurality of accommodating portions; a coolant filled in the accommodating portion; and a heat exchanger that directly liquefies a vaporized coolant by communicating with the plurality of accommodating portions.