The present application relates to a battery module. The battery module includes a battery group and an insulating plate. The battery group includes a bus bar and a plurality of battery units, each battery unit includes a tab which includes a connecting segment and a bending segment. The insulating plate includes a plurality of plate assemblies, and the adjacent plate assemblies are connected through a connecting plate. There is an obtuse angle between each plate assembly and the connecting plate connected thereto. Each connecting segment passes through a guiding groove, and the bending segment and the bus bar are fixed and connected. The guiding groove can adjust the altitude of the tab as it passes through the insulating plate. The bending segment can be connected to the bus bar, then the process requirements can be met with a small space, which improves the energy density of the battery module.

An electrical device for a converter has at least one capacitor having a first connection and a second connection, a first busbar and a second busbar is disclosed. A respective busbar has a greater extension along a transverse direction than along a longitudinal direction, and has a greater extension along the longitudinal direction than along a vertical direction. The respective busbar has a first surface and a second surface which are opposite one other with respect to the vertical direction. The device also has a first contact-connection device electrically conductively contact-connected to the first connection and via which the first connection is electrically conductively connected to the first busbar, and a second contact-connection device electrically conductively contact-connected to the second connection via which the second connection is electrically conductively connected to the second busbar. The busbars delimit a connection space in the vertical direction for connecting a semiconductor power unit.

A battery cell assembly electrically connected to a circuit board and a battery package including multiple battery cell assemblies are disclosed. The battery cell assembly includes a battery cell forming electrodes with opposite polarities on the upper and the lower ends, one end fixed to the upper end electrode so that an electric current can flow, the first connector including the other end extended in a direction away from the center of the battery cell, is made of metal plate, and includes the second connector including the other end extended in a direction away from the center of the battery cell. The other end of the first connector and the other end of the second connector are extended in directions, so that the space between the two ends gets wider as they approach the bottom end, and directions that the two ends are not parallel with each other.

A battery module including: a battery cell stack in which a plurality of battery cells are stacked; a housing for housing the battery cell stack; a pair of end plates for covering the front and rear surfaces, respectively, of the battery cell stack; and + a drainage channel at a lower end corner of at least one of the pair of the end plates where the end plate meets the housing.

A battery module including: a battery cell stack in which a plurality of battery cells are stacked; a housing for housing the battery cell stack; a pair of end plates for covering the front and rear surfaces, respectively, of the battery cell stack; and + a drainage channel at a lower end corner of at least one of the pair of the end plates where the end plate meets the housing.

A battery module includes a battery cell stack in which a plurality of battery cells are stacked, a bus bar frame coupled to each of the front and rear ends of the battery cell stack, a frame member that houses a cell block including the battery cell stack and the bus bar frame, a pad part located at one end of the bottom part of the frame member, and a film part connected to the pad part and protruding toward the bus bar frame.

A busbar module includes: a plurality of busbars arranged along a first direction and connected to battery cells; and a plate-like circuit body having a plurality of detection lines to be connected to the busbars and having flexibility, in which the circuit body includes a main line portion in which the plurality of detection lines is routed and branch portions, branching from the main line portion and in which the detection lines to be connected to the busbars are routed, the branch portions each include a stretchable portion that is stretchable along the first direction, the stretchable portions each have slits or a cutout formed in a direction intersecting the first direction in a plan view of the circuit body, and a detection line of each of the stretchable portions is routed along the slits or the cutout.

A busbar module includes: a plurality of busbars arranged along a first direction and connected to battery cells; and a plate-like circuit body having a plurality of detection lines to be connected to the busbars and having flexibility, in which the circuit body includes a main line portion in which the plurality of detection lines is routed and branch portions, branching from the main line portion and in which the detection lines to be connected to the busbars are routed, the branch portions each include a stretchable portion that is stretchable along the first direction, the stretchable portions each have slits or a cutout formed in a direction intersecting the first direction in a plan view of the circuit body, and a detection line of each of the stretchable portions is routed along the slits or the cutout.

A power storage device comprises: a plurality of power storage cells that are aligned in an alignment direction; an accommodation case that includes an upper case and a lower case and accommodates the plurality of power storage cells; a bus bar module that electrically connects the plurality of power storage cells together; and a cover that is disposed between the upper case and the bus bar module such that a portion of the upper case can abut thereon, the plurality of power storage cells being fixed to the lower case, the bus bar module including a plurality of bus bars that connect the external terminals of the power storage cells adjacent to one another in the alignment direction, the cover including a facing portion that faces the plurality of bus bars, the facing portion being provided with a projection that abuts on the bus bar.

A power storage device comprises: a plurality of power storage cells that are aligned in an alignment direction; an accommodation case that includes an upper case and a lower case and accommodates the plurality of power storage cells; a bus bar module that electrically connects the plurality of power storage cells together; and a cover that is disposed between the upper case and the bus bar module such that a portion of the upper case can abut thereon, the plurality of power storage cells being fixed to the lower case, the bus bar module including a plurality of bus bars that connect the external terminals of the power storage cells adjacent to one another in the alignment direction, the cover including a facing portion that faces the plurality of bus bars, the facing portion being provided with a projection that abuts on the bus bar.