A battery distribution unit includes a housing having a bottom mounted to a battery case of a battery module and having a component cavity with a contactor therein. The contactor has fixed contacts having terminating ends extending from a bottom end of a contactor housing. The BDU includes terminals at the bottom end of the contactor coupled to the terminating ends and a heat exchanger cap at the bottom end of the contactor. The heat exchanger cap is provided in the component cavity in thermal communication with the fixed contacts and in thermal communication with the battery case of the battery module to dissipate heat from the fixed contacts into the battery case of the battery module.

A battery module containing: at least two battery assemblies, each battery assembly including a plurality of cells with two poles at opposing ends and arranged laterally in one row next to each other so that a pole of a cell is next to a pole of a neighboring cell, and each battery assembly including a plurality of interconnectors connecting a pole of a cell to pole of a neighboring cell; a housing arranged to accommodate the at least two battery assemblies and forming a respective continuous space around each row of poles allowing for fluid flow, and comprising containing an inlet opening and an outlet opening for each continuous space formed; and a pair of electric module terminals for connecting the battery assemblies to the outside, each electric module terminal being arranged thermally closer to one of the inlet openings than to an outlet opening.

A battery module including a battery cell stack including a plurality of battery cells, a housing for the battery cell stack, a pair of busbar frames that cover a portion of the battery cell stack exposed from the housing, a pair of busbars, each of which is connected to an electrode lead protruding from the battery cell stack via a first slot formed in the busbar frame, and a a plurality of cooling fins, each of which is located between battery cells adjacent to each other among the plurality of battery cells, wherein the busbar is connected to the cooling fin.

A power storage module includes: a battery block group including a plurality of battery cells; a connecting terminal portion joined to terminal surfaces of the plurality of battery cells; and a heat conductive material arranged in a manner contacting the connecting terminal portion. The heat conductive material includes at least any member of a plurality of interspersed members or a member having a clearance. The heat conductive materials are distributed more densely in a center portion of a region surrounded by an outermost peripheral edge of the battery block group than in peripheral portions surrounding the center portion in a plan view from a normal line direction of an arrangement surface of the heat conductive materials.

A power storage module includes: a battery block group including a plurality of battery cells; a connecting terminal portion joined to terminal surfaces of the plurality of battery cells; and a heat conductive material arranged in a manner contacting the connecting terminal portion. The heat conductive material includes at least any member of a plurality of interspersed members or a member having a clearance. The heat conductive materials are distributed more densely in a center portion of a region surrounded by an outermost peripheral edge of the battery block group than in peripheral portions surrounding the center portion in a plan view from a normal line direction of an arrangement surface of the heat conductive materials.

A battery cell may include a housing, a first electrode assembly, and a second electrode assembly. The first electrode assembly may be disposed in the housing. The first electrode assembly may include a first body structure, and a first positive tab and a first negative tab that extend from the first body structure. The second electrode assembly may be disposed in the housing. The second electrode assembly may include a second body structure, and a second positive tab and a second negative tab that extend from the second body portion. The first body structure and the second body structure may be spaced out along a first direction.

The disclosure relates to a technical field of batteries, and in particular, relates to a battery pack. The battery pack includes a box body, a beam, a battery apparatus, and an electrical support base. The beam is disposed in the box body. The battery apparatus is disposed in the box body, and an electrical conductor is disposed on the battery apparatus. The electrical support base is disposed on the beam. The electrical conductor extends from the battery apparatus to the electrical support base and is connected to the electrical support base.

A battery module including a battery cell stack in which a plurality of battery cells are stacked, a housing that houses the battery cell stack, a pair of busbar frames that cover a portion of the battery cell stack not covered by the housing, a pair of busbars, each connected to an electrode lead protruding from the battery cell stack via a slot formed in the respective busbar frame, a pair of end plates covering the pair of busbar frames, and at least one heat transfer member that is connected to one of the pair of busbars, where the at least one heat transfer member is in contact with the respective end plate.

A battery cell connection element (4) including a main body (44) formed as a fluid line element made of an electrically conductive material with a longitudinal axis (L). The main body (44) is preferably closed at both ends (4a, 4b), in particular in a fluid-tight manner, and has a peripherally, substantially closed casing wall, in which at least two through-openings (4da, 4ea), preferably punch-outs, are arranged on the same side of the main body (44), with these through-openings (4da, 4ea) being arranged adjacent to one another and offset in the direction of the longitudinal axis (L), in order to be able to connect the battery cell connection element (4) to cell arresters (3) of battery cells of a battery cell assembly via the through-openings (4da, 4ea).

The electric battery comprises a plurality of electricity storage cells arranged inside a sealed compartment; a dielectric fluid filling the sealed compartment; at least one fluid guide made from low-density plastic and arranged inside the sealed compartment, the fluid guide defining at least one flow channel for the dielectric fluid in contact with the electricity storage cells; and a device for circulating the dielectric fluid.