Abstract: A battery pack includes a housing, a number of battery cells received in the housing, and an electrical connection plate module for connecting the battery cells together. The housing defines a number of heat dissipating grooves. The battery pack further includes a number of electrically-insulated heat conductive pads received in the heat dissipating grooves and at least one heat conductive plate. The heat conductive plate forms a number of first protrusions and is mounted on the housing. The first protrusions extend into the heat dissipating grooves pressing the electrically-insulated heat conductive pads close to the electrical connection plate module.

Abstract: A battery pack includes a housing, a number of battery cells received in the housing, and an electrical connection plate module for connecting the battery cells together. The housing defines a number of wedge-shaped grooves. The battery pack further includes a number of electrically insulated heat conductive pads received in the wedge-shaped grooves and at least one heat conductive plate. The heat conductive plate forms a number of first wedge-shaped protrusions and is mounted on the housing. The first wedge-shaped protrusions cooperate with the wedge-shaped grooves to press the electrically-insulated heat conductive pads on the electrical connection plate module.

Abstract: A battery module includes a base, a battery assembly supported by the base, and a heat dissipation unit for dissipating heat created by the battery assembly. The heat dissipation unit comprises a cooling box defining an interior space to accommodate a cooling fluid, an inlet to feed the cooling fluid into the interior space, and an outlet to discharge the cooling fluid from the interior space, thereby allowing circulation of the cooling fluid in the cooling box.

Abstract: A battery module includes a base, a battery assembly supported by the base and comprising one or more battery cells, and a heat dissipation unit for dissipating heat created by the one or more battery cells. The heat dissipation unit comprises one or more heat-conducting elements to transmit the heat from the one or more battery cells. Each of the one or more heat-conducting elements comprises a plurality of branches concentrated at a substantially middle portion to form a fixing portion and extend away from each other at two ends of each branch. Each of the one or more battery cells is in contact with the branches of at least one of the one or more heat-conducting elements.

Abstract: A battery module includes a base, a battery assembly supported by the base, and a least one liquid-adsorbing member. The battery assembly contains liquid electrolyte. The least one liquid-adsorbing member is positioned between the base and the battery assembly to absorb the electrolyte if the electrolyte leaks from the battery assembly.

Abstract: A battery module includes a base, a battery assembly supported by the base and including one or more battery units, and a heat dissipation unit for dissipating heat created by the one or more battery units. Each battery unit includes two battery cells aligned with and spaced from each other. The heat dissipation unit includes one or more heat-conducting elements, a cooling box, and one or more connecting elements. Each battery unit has at least one heat-conducting element in contact with side surfaces of the two battery cells at the same side and coupled to one of the one or more connecting elements. Each connecting element is positioned between the two battery cells of one of the one or more battery units and secured to the cooling box to transmit the heat from the one or more heat-conducting elements to the cooling box.