A device is described for connecting in parallel multiple battery cells (2) arranged in parallel to one another with respect to a joining axis using a contact plate (1) having individual passages (3). To enable a connection in parallel, which is reliable under periodic mechanical strains and nonetheless detachable, of individual battery cells (2) independently of their diameter and their relative location to the contact plate (1), wherein a simple assembling procedure can be maintained and a more flexibly designed serial interconnection of the battery cells can be enabled, it is proposed that each passage (3) is designed for the jacket-side enclosure of the battery cells (2) and comprises at least one contact tongue (4), which has on the passage side a contact body (5) protruding from the contact tongue (4) into the passage (3) in the form of a cut ovoid.

A battery module includes a module terminal, electrochemical cells and a bus bar that electrically connects at least a subset of the cells to the module terminal. The bus bar includes an electrically conductive substrate and an insulation layer disposed between the substrates and ends of the cells. The substrate includes primary connection through holes, each primary connection through hole having a second diameter and being aligned with the first end of a unique one of the cells. The insulation layer includes secondary connection through holes. Each secondary connection through hole has a third diameter and is concentric with a corresponding one of the primary through holes. The third diameter is less than the second diameter, and an electrical connector extends between the substrate and the cell terminal and provides an electrical connection between the substrate and the cell terminal.

A battery module includes a module terminal, electrochemical cells and a bus bar that electrically connects at least a subset of the cells to the module terminal. The bus bar includes an electrically conductive substrate and an insulation layer disposed between the substrates and ends of the cells. The substrate includes primary connection through holes, each primary connection through hole having a second diameter and being aligned with the first end of a unique one of the cells. The insulation layer includes secondary connection through holes. Each secondary connection through hole has a third diameter and is concentric with a corresponding one of the primary through holes. The third diameter is less than the second diameter, and an electrical connector extends between the substrate and the cell terminal and provides an electrical connection between the substrate and the cell terminal.

The present invention provides a secondary battery including: an electrode assembly (‘jelly-roll’) having a structure in which a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode are wound together; a can main body inside of which a hollow having an open side is formed and in which the electrode assembly is accommodated in a shape surrounding the hollow; and a top cover mounted on an open upper end portion of the can main body to seal the can main body, wherein one of a bottom portion of the can main body and the top cover may be formed with a through-hole communicating with the hollow of the can main body, and at least 50% of a total volume of the hollow is filled with a thermally conductive resin, and provides a secondary battery pack including the secondary battery.

A bus bar module includes a case assembled to a battery assembly including single cells, a bus bar held in the case and fastened to electrodes of the single cells, a circuit body connected to the bus bar and is wired in the case, and a circuit board to which the circuit body is connected. The case includes a case main body including a board accommodation space, and a lid body attached to one side at which the board accommodation space in the case main body is open. The circuit body is led from an opening portion into the board accommodation space, the opening portion being formed on a surface of the other side opposite to the one side of the board accommodation space in the case main body. The circuit body is soldered to the circuit board from the one side.

An electrically conductive adhesive composition, free of metals and metal salts, includes an adhesive polymer component selected from polyethylene-vinyl acetate, polyolefin elastomers, polyvinyl butyral, poly(acrylic acid), polyacrylates and poly(methyl methacrylate) from 5% to 40% by weight, an electrically conductive component including acetylene or carbon black nanoparticles, carbon nanotubes, and flakes or plates of graphene or graphene derivatives from 60% to 95% by weight, percentages by weight of the adhesive polymer component and electrically conductive component, the electrically conductive component consisting of acetylene or carbon black nanoparticles from 15% to 45% by weight, carbon nanotubes from 5% to 25% by weight, and flakes or plates of graphene or graphene derivatives from 35% to 70% by weight, percentages by weight of the electrically conductive component, and a solvent compatible with the adhesive polymer component from 50% to 90% by weight of the electrically conductive adhesive composition.

An electrically conductive adhesive composition, free of metals and metal salts, includes an adhesive polymer component selected from polyethylene-vinyl acetate, polyolefin elastomers, polyvinyl butyral, poly(acrylic acid), polyacrylates and poly(methyl methacrylate) from 5% to 40% by weight, an electrically conductive component including acetylene or carbon black nanoparticles, carbon nanotubes, and flakes or plates of graphene or graphene derivatives from 60% to 95% by weight, percentages by weight of the adhesive polymer component and electrically conductive component, the electrically conductive component consisting of acetylene or carbon black nanoparticles from 15% to 45% by weight, carbon nanotubes from 5% to 25% by weight, and flakes or plates of graphene or graphene derivatives from 35% to 70% by weight, percentages by weight of the electrically conductive component, and a solvent compatible with the adhesive polymer component from 50% to 90% by weight of the electrically conductive adhesive composition.

The invention relates to an energy storage module (100), which is produced by a continuous production method, and which comprises the following: a plurality of energy storage cells (10), electrically connected in series, and a housing (20), produced at least in regions and preferably completely from plastic, in which the plurality of energy storage cells (10) is received. A barrier layer is arranged between the housing (20) and the energy storage cells (10) at least in regions, preferably completely. The invention further relates to a production method of such an energy storage module (100), which is produced by means of a continuous production method.

A high voltage distribution system is provided with multiple fuses. The high voltage distribution system includes multiple laminated busbars that are electrically coupled to a battery and to the multiple fuses. Busbars are electrically coupled to the one or more fuses via electrical connections between the busbars and the fuses. The electrical connections can pass through other busbars without having an electrical coupling to the other busbars. An insulating layer may be used between the busbars to prevent overcurrent events. The configuration, size, and position of each busbar is selected based on the electrical requirements of components that are electrically coupled to the busbar and based on the prevention of overcurrent events.

A high voltage distribution system is provided with multiple fuses. The high voltage distribution system includes multiple laminated busbars that are electrically coupled to a battery and to the multiple fuses. Busbars are electrically coupled to the one or more fuses via electrical connections between the busbars and the fuses. The electrical connections can pass through other busbars without having an electrical coupling to the other busbars. An insulating layer may be used between the busbars to prevent overcurrent events. The configuration, size, and position of each busbar is selected based on the electrical requirements of components that are electrically coupled to the busbar and based on the prevention of overcurrent events.