A plurality of battery cells each having a positive electrode terminal and a negative electrode terminal; and a bus bar which connects the electrode terminals facing each other in the battery cells adjacently disposed among the plurality of battery cells.

An embodiment is directed to a module-to-module power connector configured to form connections between battery modules installed in a battery housing of an energy storage system. The module-to-module power connector includes electrical interfaces and busbar(s) configured to form one or more electrical connections terminals of adjacent battery modules. The busbar(s) is flexibly configured to permit a defined range of movement of the electrical interfaces during insertion of the respective battery modules into respective battery module compartments. The module-to-module power connector may further be arranged inside in a tunnel space, whereby holes are defined in a battery module mounting area housing the battery modules that open into the tunnel space.

An aluminum bus bar includes an insulation portion having an oxide film insulation layer, and electric conduction portions having electric conductivity and disposed with the insulation portion being interposed therebetween. Also, a battery module includes the aluminum bus bar; a cell assembly having battery cells; an electric component electrically connected to the cell assembly by means of the aluminum bus bar; and a heatsink disposed at one side of the cell assembly to exchange heat with the cell assembly, and the insulation portion of the aluminum bus bar is disposed in contact with one surface of the heatsink.

The embodiments describe a system and the corresponding assembly techniques of a battery submodule top cover. The battery submodule top cover has at least one electrical hybrid interconnect coupled to a substrate. The hybrid interconnect comprises at least a first portion made of a first metal type, and a second portion made of a second metal type. The first portion and the second portion of the hybrid interconnect are joined together such that an electrical connection may be made between two battery cell tabs where each battery cell tab is made of a different type of metal.

The embodiments describe a system and the corresponding assembly techniques of a battery submodule top cover. The battery submodule top cover has at least one electrical hybrid interconnect coupled to a substrate. The hybrid interconnect comprises at least a first portion made of a first metal type, and a second portion made of a second metal type. The first portion and the second portion of the hybrid interconnect are joined together such that an electrical connection may be made between two battery cell tabs where each battery cell tab is made of a different type of metal.

A battery module comprises: electrochemical cells arranged in rows with terminals in a coplanar arrangement, wherein the electrochemical cells include a first cell and a second cell; a busbar including coplanar interleaved fingers, wherein the first and second cells are positioned on opposite sides of a first coplanar interleaved finger of the coplanar interleaved fingers; and a first bond wire having: (i) a first wire bond at a first terminal of the first cell, (ii) a second wire bond at a first terminal of the second cell, and (iii) a first intermediate wire bond at the first coplanar interleaved finger between the first and second wire bonds.

A battery module comprises: electrochemical cells arranged in rows with terminals in a coplanar arrangement, wherein the electrochemical cells include a first cell and a second cell; a busbar including coplanar interleaved fingers, wherein the first and second cells are positioned on opposite sides of a first coplanar interleaved finger of the coplanar interleaved fingers; and a first bond wire having: (i) a first wire bond at a first terminal of the first cell, (ii) a second wire bond at a first terminal of the second cell, and (iii) a first intermediate wire bond at the first coplanar interleaved finger between the first and second wire bonds.

A busbar module includes: a busbar including an upper plate and a lower plate overlapping with the upper plate; an electrode lead positioned between the upper plate and the lower plate; and a connecting part disposed between the upper plate and the electrode lead to electrically connect the upper plate and the electrode lead, wherein a through hole is formed in the lower plate, and the connecting part is disposed at a position corresponding to the through hole.

An electronic device includes a device body and a male terminal structure connected to the device body. The male terminal structure includes a male terminal body, a first terminal member, and a free terminal member. The male terminal body is connected to the device body and a mating electronic device, respectively. The first terminal member is disposed at an end portion of the male terminal body, and the first terminal member is capable of being received in a terminal inserting portion of the mating electronic device. The free terminal member is disposed at the end portion of the male terminal body, detachably in contact with the first terminal member, and capable of being in contact with a secured terminal member of the mating electronic device.

The present application relates to a harness isolation plate assembly, a battery module, a battery pack and a device. The harness isolation plate assembly includes a plurality of isolation units comprising busbars and insulating films connecting the busbars; and a connecting assembly through which the adjacent isolation units are connected. In the present application, the harness isolation plate assembly includes a plurality of separate isolation units. Upon molding, each isolation unit can be processed independently. Moreover, a size of each isolation unit is small, thus reducing processing difficulty. Furthermore, it is easy to control a location of each busbar, such that locating accuracy of the busbars is improved so as to enhance connecting reliability between the busbars and an electrode lead. Meanwhile, in each isolation unit, the busbars are connected through the insulating films, such that a risk of short circuit for the busbars is low.