An energy storage device arrangement, including a plurality of electrical energy storage devices that are mutually electrically contacted with each other, including a first receiving part having at least one bore-like receiving space for receiving at least one electrical energy storage device, at least one other receiving part connectable with the first receiving part, provided with at least one bore-like receiving space for receiving at least one electrical energy storage device, and at least one plate-like connecting part that is or can be arranged between two receiving parts that are or can be arranged adjacently for electrical contacting of electrical energy storage devices arranged in respective receiving spaces on the side of the receiving part.

A bus bar module includes an insulating resin case mounted to an assembled battery and including a bus bar accommodating chamber, a conductive metal bus bar, and a voltage detection terminal. The assembled battery includes a plurality of cells in which a positive terminal and a negative terminal are alternately arranged. The positive terminal and the negative terminal are collectively disposed in the bus bar accommodating chamber. The conductive metal bus bar includes a plurality of terminal through holes corresponding to a number of the positive terminal and the negative terminal. The conductive metal bus bar is accommodated in the bus bar accommodating chamber.

A cell connector for making electrically conductive contact with a plurality of battery cell terminals comprises a plurality of sections positioned next to each other including a plurality of first sections composed of an electrically conductive metal material, and at least one second section composed of an electrically insulating plastic. The at least one second section is positioned between a respective two of the plurality of first sections. The present disclosure further relates to a method for producing a cell connector, in which the at least one second section is connected to the at least two first sections by means of a nano-moulding method. The present disclosure furthermore relates to a battery module having a plurality of battery cells with terminals connected by at least one cell connector.

A terminal busbar includes a coupling portion that is approximately in the shape of a plate having a small thickness relative to a length and a width, and a terminal portion that is bent in a vertical direction at one end of the coupling portion. The coupling portion includes a first metal layer, a material layer and a second metal layer stacked in a sequential order along an extension direction of the terminal portion, the material layer is conductive in a normal condition, but can act as resistance when temperature rises, and the material layer includes a gas generating material that decomposes at a predetermined temperature or above to produce gas, which increases resistance. The first metal layer is integrally formed with the terminal portion, and the second metal layer provides a connect surface with an electrode lead of the battery cell.

A terminal busbar includes a coupling portion that is approximately in the shape of a plate having a small thickness relative to a length and a width, and a terminal portion that is bent in a vertical direction at one end of the coupling portion. The coupling portion includes a first metal layer, a material layer and a second metal layer stacked in a sequential order along an extension direction of the terminal portion, the material layer is conductive in a normal condition, but can act as resistance when temperature rises, and the material layer includes a gas generating material that decomposes at a predetermined temperature or above to produce gas, which increases resistance. The first metal layer is integrally formed with the terminal portion, and the second metal layer provides a connect surface with an electrode lead of the battery cell.

To provide a battery module with high volumetric efficiency. A battery module comprising stacked and connected unit cells each comprising a power generation element, a cathode terminal, and an anode terminal disposed on the opposite side of the cathode terminal of the power generation element, wherein a connection laminate layer including a resin layer, a metal layer and a resin layer in this sequence, is disposed between the unit cells, and wherein the metal layer of the connection laminate layer is electrically connected to the cathode terminal of one adjacent unit cell and the anode terminal of the other unit cell.

To provide a battery module with high volumetric efficiency. A battery module comprising stacked and connected unit cells each comprising a power generation element, a cathode terminal, and an anode terminal disposed on the opposite side of the cathode terminal of the power generation element, wherein a connection laminate layer including a resin layer, a metal layer and a resin layer in this sequence, is disposed between the unit cells, and wherein the metal layer of the connection laminate layer is electrically connected to the cathode terminal of one adjacent unit cell and the anode terminal of the other unit cell.

A battery module is disclosed. The battery module includes a plurality of sub-modules each including at least one battery cell and an internal bus bar electrically connected to an electrode tab of the at least one battery cell, and a bus bar assembly configured to connect the internal bus bars of the plurality of sub-modules. The bus bar assembly includes a bus bar frame detachably mounted on the plurality of sub-modules, and an external bus bar coupled to the bus bar frame and configured to electrically connect sub-modules adjacent to each other among the plurality of sub-modules.

A battery module is disclosed. The battery module includes a plurality of sub-modules each including at least one battery cell and an internal bus bar electrically connected to an electrode tab of the at least one battery cell, and a bus bar assembly configured to connect the internal bus bars of the plurality of sub-modules. The bus bar assembly includes a bus bar frame detachably mounted on the plurality of sub-modules, and an external bus bar coupled to the bus bar frame and configured to electrically connect sub-modules adjacent to each other among the plurality of sub-modules.

A bus bar includes a plurality of fastening holes in which a plurality of electrodes of a single cell is fastened with a nut, and a plurality of projections formed between the fastening holes and projecting in a direction away from the single cell. A case includes a bus bar hosing portion in which the bus bar is housed, and a support portion disposed in the projection of the bus bar housed in the bus bar housing portion and abutting against a back surface of the projection to support the bus bar. The support portion has a width smaller than an interval between inner side surfaces of side plate portions of the projection.