A busbar assembly comprises an elongated support structure with a bottom, two side walls, extending in a length direction (L) along longitudinal sides, two spaced-apart central ridges extending in the length direction (L), a signal line, connected to the support structure between the central ridges, conductor members positioned between the side walls and an adjacent central ridge, adapted for interconnecting terminals of battery cells that are adjacent when seen in the length direction (L). The sidewalls and the ridges each extend at a cover side of the bottom and define top adhesive surface strips with respective widths Ws, Wc, the strips being situated in a connecting plane and adapted for adhesive connection to a top plate of a battery pack casing.

A battery pack includes a pack case accommodating a first battery module and a second battery module, and a busbar including a first body portion fastened to the first battery module, a second body portion fastened to the second battery module, and at least one breakable portion disposed between the first body portion and the second body portion and fused at a temperature lower than those of the first body portion and the second body portion. The busbar includes an insulating cover covering the first and second body portions and the breakable portion, and a flameproof cover covering the insulating cover. At least a portion of the insulating cover covering the breakable portion is exposed to the outside of the flameproof cover.

A battery system includes a first battery module, a second battery module, and a thermoresistant spacer disposed between the first battery module and the second battery module. The thermoresistant spacer may be a thermoresistant urethane foam or a silicon pad and may include thermoresistant additives, which may include at least one of melamine resin powder, aerogel particles, and milled oxidized polyacrylonitrile fibers. A flame retardant material may be disposed over at least a surface of the thermoresistant spacer.

A battery module includes: a cell stack including a plurality of unit cells arranged in a first direction; and an insulating member around the plurality of unit cells; a plurality of module housings, each of the module housings including a plurality of receiving parts and receiving the cell stack; and a coupling part, and each of the receiving parts includes a fixing wall around the cell stack and having at least a portion which is in contact with the cell stack, and the fixing wall includes end walls at respective sides of each of the receiving parts in the first direction to engage end surfaces of respective sides of the cell stack in the first direction, and the coupling part is configured to be coupled to the coupling part of an adjacent battery module.

A battery module includes: a cell stack including a plurality of unit cells arranged in a first direction; and an insulating member around the plurality of unit cells; a plurality of module housings, each of the module housings including a plurality of receiving parts and receiving the cell stack; and a coupling part, and each of the receiving parts includes a fixing wall around the cell stack and having at least a portion which is in contact with the cell stack, and the fixing wall includes end walls at respective sides of each of the receiving parts in the first direction to engage end surfaces of respective sides of the cell stack in the first direction, and the coupling part is configured to be coupled to the coupling part of an adjacent battery module.

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.

A battery cell assembly includes a frame and multiple battery cells which are held in cell-individual recesses of the frame so as to be aligned parallel to one another. A respective gap filler is arranged between lateral surfaces of the battery cells and the recess inner faces facing the lateral surfaces, said gap filler connecting the battery cells and the frame together. The frame is made of a solid, dimensionally stable, and thermally conductive material, and the gap filler is made of a permanently deformable thermally conductive material. Furthermore, the inner faces of the recesses extend in the vertical direction of the battery cells over the entire length thereof.

A battery cell assembly includes a frame and multiple battery cells which are held in cell-individual recesses of the frame so as to be aligned parallel to one another. A respective gap filler is arranged between lateral surfaces of the battery cells and the recess inner faces facing the lateral surfaces, said gap filler connecting the battery cells and the frame together. The frame is made of a solid, dimensionally stable, and thermally conductive material, and the gap filler is made of a permanently deformable thermally conductive material. Furthermore, the inner faces of the recesses extend in the vertical direction of the battery cells over the entire length thereof.

A battery cell includes: an electrode unit including a positive electrode, a negative electrode, a current collector, and a separator; a housing unit accommodating the electrode unit; a first insulator disposed inside the housing unit and between the electrode unit and the housing unit, an internal terminal disposed inside the housing unit and electrically connected to the current collector; a second insulator disposed inside the housing unit and between the internal terminal and the housing unit; and an external terminal disposed outside the housing unit. A contact surface of the first insulator with the electrode unit has indented shape. The first insulator is fixed to the housing unit.

This application provides a battery. The battery includes a housing and a plurality of accommodating cavities located in the housing. Two adjacent accommodating cavities are isolated by a partition plate, and an electrode core assembly comprising at least one electrode core is arranged in the accommodating cavity. A plurality of electrode core assemblies are sequentially arranged along a first direction and connected in series. A liquid guiding hole and a gas guiding hole are provided on the partition plate. The liquid guiding hole and the gas guiding hole are used to connect two adjacent accommodating cavities at both sides of the partition plate. The battery further includes a blocking mechanism that enables the liquid guiding hole to be in a settable state including an open state and a closed state.