Abstract: A protective device for shutting down at least one battery cell in a battery system of a motor vehicle in case of an electrical short circuit. The protective device is configured to conduct an electric current, which flows through the at least one battery cell, through a measurement element, in which the current generates an electrical measurement voltage in dependence on its amperage and/or its amperage gradient. The measurement element is coupled to an analog monitoring circuit, in which a comparison unit is configured to trigger a triggering signal for the case that the amperage rises at least by a predetermined delta value within a predetermined duration, and a switching unit is configured to receive the triggering signal and to interrupt the current upon receiving the triggering signal by switching at least one switching element.

Abstract: A method for discharging a battery module, having at least two battery cells, of a battery having at least two battery modules, wherein the battery cells of each of the battery modules are arranged next to one another and are mechanically and electrically connected to one another, wherein, in each of the battery modules, the respective battery cells are individually activated and deactivated in terms of an energy storage function by a cell switch unit, wherein the battery cells of the battery module to be discharged are selectively electrically coupled successively to a discharge device by the cell switch unit and starting from one predefined battery cell, in order to individually successively electrically discharge the battery cells in order to discharge the battery module.

Abstract: A battery cell with at least one electrode which has a carrier element and an active layer abutting the carrier element and with an electrode material for the alternating uptake and release of ions, the carrier element electrically connecting the active layer with an electric connecting pole of the battery cell, and having an electrically conductive surface for said exchanging of electrons with the electrode material of the active layer. The electrically conductive surface of the respective carrier element is provided by electrical conducting elements, the conducting elements being provided by fibers and/or granules and/or a slotted and/or perforated film and/or film strip and/or a wad.

Abstract: A protective device for switching off a battery cell of a motor vehicle battery in the event of an electrical short-circuit. The battery cell has two cell terminals and an energy storage unit for storing energy. The energy storage unit is connected to the cell terminals in an electrically conductive manner in order to provide cell voltage to the cell terminals. The protective device detects the short-circuit as a function of at least the cell voltage affecting the battery cell. In this case, the battery cell has the protective device and at least one switching device, which is arranged between the energy storage unit and at least one of the cell terminals. The protective device isolates the energy storage unit from the at least one of the cell terminals in order to switch off the battery cell by the switching device.

Abstract: A protective device for switching off a battery cell of a motor vehicle battery in the event of an electrical short-circuit. The battery cell has two cell terminals and an energy storage unit for storing energy. The energy storage unit is connected to the cell terminals in an electrically conductive manner in order to provide cell voltage to the cell terminals. The protective device detects the short-circuit as a function of at least the cell voltage affecting the battery cell. In this case, the battery cell has the protective device and at least one switching device, which is arranged between the energy storage unit and at least one of the cell terminals. The protective device isolates the energy storage unit from the at least one of the cell terminals in order to switch off the battery cell by the switching device.

Abstract: A protective device for shutting down at least one battery cell in a battery system of a motor vehicle in case of an electrical short circuit. The protective device is configured to conduct an electric current, which flows through the at least one battery cell, through a measurement element, in which the current generates an electrical measurement voltage in dependence on its amperage and/or its amperage gradient. The measurement element is coupled to an analog monitoring circuit, in which a comparison unit is configured to trigger a triggering signal for the case that the amperage rises at least by a predetermined delta value within a predetermined duration, and a switching unit is configured to receive the triggering signal and to interrupt the current upon receiving the triggering signal by switching at least one switching element.

Abstract: A method for discharging a battery module, having at least two battery cells, of a battery having at least two battery modules, wherein the battery cells of each of the battery modules are arranged next to one another and are mechanically and electrically connected to one another, wherein, in each of the battery modules, the respective battery cells are individually activated and deactivated in terms of an energy storage function by a cell switch unit, wherein the battery cells of the battery module to be discharged are selectively electrically coupled successively to a discharge device by the cell switch unit and starting from one predefined battery cell, in order to individually successively electrically discharge the battery cells in order to discharge the battery module.

Abstract: The invention accordingly provides a silicon-carbon composite which has at least a proportion of hard carbon and a proportion of silicon powder and is obtained by, under a noble gas atmosphere, a) treating the hard carbon component at least once with high energy in a mechanofusion mixer and b) subsequently adding the silicon powder component thereto and mixing the components, or adding the silicon powder component during step a) and continuing the mechanofusion treatment, and is characterized in that the composite has an average particle size of less than or equal to 12 ?m, a proportion of hard carbon of from 5 to 50% by weight and a proportion of silicon powder of from 5 to 50% by weight.

Abstract: The invention relates to a battery (0), comprising a plurality of self-contained, substantially cuboid cell housings (1), in each of which a side face is formed at least in some regions as a negative pole (?) and the opposite side face is designed at least in some regions as a positive pole (+), wherein the cell housings (1) bear against one another, with the pole (?) on the pole (+), and extend between a positive contact (14) and a negative contact (13), and wherein the cell housings (1) are each enclosed by an electrically non-conductive, mechanically supporting frame (2). The aim of the invention is to provide such a battery which has lower internal resistance and is therefore suitable for applications which require rapid charging or discharging (high-power applications).

Abstract: The invention relates to the use of N-ethyl pyrrolidone in the production of electrodes for double-layer capacitors.

Abstract: Electrolyte, comprising an aprotic solvent, a lithium salt as conducting salt, and an additive, characterized in that the additive is a compound which contains a protonable nitrogen atom and is hydrolysable by water.

Abstract: The present invention relates to a method for coating a carrier during the production of an electrode for electrical energy stores, in particular for lithium ion cells, using a specific solvent and/or dispersant, characterized in that the solvent and/or dispersant is or comprises N-ethylpyrrolidone.

Abstract: The invention relates to a process for producing nanostructured silicon-carbon composites, comprising the (A) introduction of at least one of components (a1) mono- and/or polyhydroxyaromatic compound, and (a2) an aldehyde, and (a3) a catalyst, into a reactor to obtain a composition in which the components react with one another in the presence of the catalyst at a reaction temperature T of 75 to 200° C., and at a pressure of 80 to 2400 kPa, and over a period to of 0.

Abstract: The present invention relates to stacks comprising separators and electrodes stacked alternately one on top of the other and fixed, the stack having, on at least one side and/or edge of the stack, at least one adhesive bond comprising an organic adhesive, which bond adhesively bonds the electrodes and separators of the stack to one another, and a method for the production thereof and the use of these stacks in Li batteries.