Abstract: A battery cell is provided. The battery cell has a cell housing with an electrically conductive hollow cylinder; an electrically conductive first end plate closing off the hollow cylinder at one of the end faces thereof; at least one electrode of a first electrical polarity and at least one electrode of a second electrical polarity opposite to the first polarity, and in which the electrodes of different polarities being separated from each other by at least one separator; a first electrically conductive intermediate plate which is arranged between the first end plate and the electrodes and which is electrically insulated from the hollow cylinder; and a connecting element which is electrically connected to the first intermediate plate and the first end plate, the connecting element extending in a straight line between the first intermediate plate and the first end plate.

Abstract: A battery cell is provided. The battery cell includes an electrode of a first electrical polarity and an electrode of a second electrical polarity opposite to the first polarity, the electrodes of different polarities are separated by a separator; a first electrically conductive contact element which is electrically connected to the electrode of the first polarity and can be contacted as a first terminal of the battery cell from outside the cell housing; a second electrically conductive contact element which is connected to the electrode of the second polarity and can be contacted as a second terminal of the battery cell from outside the cell housing; and the first and the second electrically conductive contact element are electrically insulated from each other and, on a same first end wall of the electrically conductive hollow cylinder, can each be contacted as a respective terminal from outside the cell housing.

Abstract: A battery cell includes: (i) a cylindrical cell housing having a hollow cylinder; (ii) an electrically conductive closure plate closing the hollow cylinder at an end face and having an opening; (iii) an electrode of a first electrical polarity and an electrode of a second electrical polarity opposite to the first polarity, the electrodes being separated by a separator; (iv) an electrically conductive rod, which extends along a longitudinal axis of the hollow cylinder as far as the opening, so that, at a first end of the rod, the rod is electrically contactable through the opening. The electrode of the first polarity is electrically connected to the closure plate. The electrode of the second polarity is electrically connected to the electrically conductive rod at a second end of the rod different from the first end, the electrically conductive rod being electrically isolated from the electrically conductive closure plate.

Abstract: A method for producing an energy storage cell is provided. According to the method, a housing having a base, a tapping plate, and a wound electrode assembly are provided. The wound electrode assembly is connected to the tapping plate, and the tapping plate, which is connected to the wound electrode assembly, is arranged in the housing. The tapping plate and the base of the housing are connected to each other via laser beam welding.

Abstract: A holding device for battery cells for constructing a high-voltage storage module which can be used for electrically operated motor vehicles is provided. The battery cells, in a P assembly (i.e. interconnected in parallel), are provided with a minimally thin thermal insulating layer and, encased in this way, are brought into direct contact with each other in a self-holding arrangement. The intermediate spaces between the battery cells, which battery cells have been provided with the insulating layer and, encased in this way, have been brought into contact with each other, are preferably filled with a thermally conductive potting compound. The thermally conductive potting compound can additionally have high electrical conductivity and thus, in addition to the heat transfer, can also establish the contacting of the anodes in the P assembly if the anodes are also encased by the potting compound.

Abstract: A protective device for battery cells, a plurality of which are assembled to form a module for an electric drive of a vehicle, has a frame made of plastic provided between the battery cells and coated with a fire-retardant coating. The frame laterally separates each battery cell from the other battery cells. A further fire-retardant coating is preferably additionally applied directly onto a housing of the battery cells. An air gap can be provided between each battery cell and each separation chamber of the frame.

Abstract: A method for operating a battery with a hermetically sealed housing configured as a hardcase and containing at least one electrochemical cell based on an organic electrolyte is described. The method includes: opening the housing at a point configured to create a point of access to a housing interior so as to vent the at least one cell; and, after the opening, hermetically re-sealing the point of access to the housing interior. A battery which can be operated by this method is also described.

Abstract: 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.

Abstract: A battery device includes a plurality of battery cells with individual cell cases. For each of the battery cells, an individual layer arrangement including a cell-side carrier layer and an outside reflecting layer abuts against a side of the cell case facing at least one other of the battery cells.

Abstract: An electrochemical energy storage cell includes multiple electrodes of a first polarity and multiple electrodes of a second polarity that are arranged in an electrode stack. Each of the electrodes of the first polarity has a first arrester lug which protrudes out of the electrode stack on a first side of the electrode stack, and each of the electrodes of the second polarity has a second arrester lug which protrudes out of the electrode stack on a second side of the electrode stack. The electrode stack is arranged in a housing which is connected to the first arrester lug in an electrically conductive manner. A connection element which is arranged in a housing wall of the housing and is electrically connected to the second arrester lug is electrically insulated from the housing and is configured to electrically connect the exterior of the housing and the second arrester lug.

Abstract: A projection display for providing virtual display images on a plurality of display planes which are offset to one another, includes a projection unit for producing a projection beam; and an optical imaging element which is designed to direct the projection beam onto a combination surface and to image, depending on the projection beam, the virtual display images into the plurality of display planes. The projection unit has a plurality of transparent display elements which are arranged so as to be spaced apart and one after the other along the beam path of the projection unit.

Abstract: A projection display for providing virtual display images on a plurality of display planes which are offset to one another, includes a projection unit for producing a projection beam; and an optical imaging element which is designed to direct the projection beam onto a combination surface and to image, depending on the projection beam, the virtual display images into the plurality of display planes. The projection unit has a plurality of transparent display elements which are arranged so as to be spaced apart and one after the other along the beam path of the projection unit.