Abstract: According to various embodiments, a circuit for determining the frequency of a signal is described, comprising an input configured to receive an analog input signal, an analog to digital converter configured to convert the analog input signal to a digital input signal, a digital mixer configured to generate a mixing result signal by mixing the digital input signal with a single bit binary signal having a reference frequency, a low pass filter configured to generate a filtered signal by filtering the mixing result signal, a measuring circuit configured to measure the period of the filtered signal and an output configured to output a value differing from the frequency of the single bit binary signal by the inverse of the measured period as the frequency to be determined.

Abstract: A charging cable including a charging line detachably electrically connected at one end using a connection apparatus to an energy storage device to be charged and electrically connected at the other end to an adapter interface detachably connected in a form fit to an adapter. The adapter is detachably electrically connected to an energy supply device in order to transmit, via the charging cable, electrical energy from the energy supply device to the energy storage device to be charged. To obtain a particularly compact and robust charging cable, the adapter interface includes a communication device enabling a wireless communication with the adapter when the adapter is connected to the adapter interface, so that control signals between the energy supply device and an electronics system of the charging cable and/or of an energy storage device connected to the charging cable can be transmitted wirelessly between the adapter and the adapter interface.

Abstract: A charging cable including a charging line detachably electrically connected at one end using a connection apparatus to an energy storage device to be charged and electrically connected at the other end to an adapter interface detachably connected in a form fit to an adapter. The adapter is detachably electrically connected to an energy supply device in order to transmit, via the charging cable, electrical energy from the energy supply device to the energy storage device to be charged. To obtain a particularly compact and robust charging cable, the adapter interface includes a communication device enabling a wireless communication with the adapter when the adapter is connected to the adapter interface, so that control signals between the energy supply device and an electronics system of the charging cable and/or of an energy storage device connected to the charging cable can be transmitted wirelessly between the adapter and the adapter interface.

Abstract: An energy storage module having a plurality of stacked flat cells. The energy storage module has an interconnection formed in such a way that the energy storage module can be connected mechanically, electrically and/or for exchanging coolant with at least one other energy storage module of the same kind.

Abstract: A battery system having a battery, an overcurrent switch-off device in which a first current range with a maximum switchable current, and a second switch-off current range having a minimum switchable current. The maximum switchable current of the first current range and the minimum switchable current of the second current range lie above a maximum current of an operating current range, and the switchable current of the second switch-off current range is at least predominantly greater than the switchable current of the first switch-off current range.

Abstract: An energy storage module having a plurality of stacked flat cells. The energy storage module has an interconnection formed in such a way that the energy storage module can be connected mechanically, electrically and/or for exchanging coolant with at least one other energy storage module of the same kind.

Abstract: A battery system having a battery, an overcurrent switch-off device in which a first current range with a maximum switchable current, and a second switch-off current range having a minimum switchable current. The maximum switchable current of the first current range and the minimum switchable current of the second current range lie above a maximum current of an operating current range, and the switchable current of the second switch-off current range is at least predominantly greater than the switchable current of the first switch-off current range.

Abstract: An electrical energy accumulator and a method for manufacturing an electrical energy accumulator. Such an electrical energy accumulator, in particular, for an electric vehicle, has a plurality of battery cells which are electrically connected to one another. The battery cells are, in particular, flat and essentially plate-shaped, and are arranged in at least one stack adjacent to one another or one on top of another. The cell poles of at least two battery cells which are electrically interconnected to one another are connected to one another by at least one cell connector. At least one cell pole and at least one cell connector are connected to one another in particular by way of a clinching connection.

Abstract: An energy storage module having a plurality of stacked flat cells. The energy storage module has an interconnection formed in such a way that the energy storage module can be connected mechanically, electrically and/or for exchanging coolant with at least one other energy storage module of the same kind.

Abstract: An energy storage module having a plurality of stacked flat cells. The energy storage module has an interconnection formed in such a way that the energy storage module can be connected mechanically, electrically and/or for exchanging coolant with at least one other energy storage module of the same kind.