Abstract: Various embodiments include a method for ascertaining the residual value of a used battery. The method may include: feeding the battery to a test station; bringing it to a test temperature; stabilizing the temperature within less than 2 K; measuring a load cycles using a high-precision coulometry apparatus; carrying out measurement until fulfilment of a termination criterion; ascertaining a first and a second value for a discharging capacity using two different calculation rules, wherein calibration is handled differently in the two calculation rules; carrying out an optimization process; determining a residual value of the battery; and determining whether the used battery is to be employed for use in a static energy storage device.

Abstract: Various embodiments of the teachings herein include a method for controlling a battery production system. An example includes: measuring production parameters with a plurality of sensors; determining a quality value of a battery cell with the measurement values; calculating a dependency of the quality value on the measurement values with a computing unit; calculating a dependency of the quality value on changed production parameters by performing a machine learning method; determining a controllable process parameter with an improved quality value using a parameter optimization for the machine learning method including a Bayesian optimization, wherein measurement values with associated quality values are included in the optimization as reference points; and using the controllable process parameter with an improved quality value in operation of the battery production system.

Abstract: Various embodiments of the teachings herein include a method for assessing an electrical storage cell. An example includes: creating a data set relating to the ageing behavior of an reference cell of a specific type with regard to charging and discharging; creating a second data set of a second reference cell of the same type; measuring an electrochemical operating characteristic of each reference storage cell and linking this operating characteristic to the reference data set; saving at least two reference data sets to the operating characteristic in a database; measuring the electrochemical operating characteristic of a storage cell; comparing the measured operating characteristic of the storage cell with the reference storage cells; and assigning the storage cell on the basis of an assignment key to one of the operating characteristics saved in the database and the reference data set linked thereto.

Abstract: Various embodiments include a method for analyzing an electrode layer for a battery storage device in an electrode layer production facility. The method may include: acquiring an image comprising two pixels of the electrode layer, wherein a first pixel represents a first location of the electrode layer and a second pixel represents a second location of the electrode layer, wherein the first location and the second location are disposed adjacent to each other; determining a first value for a material property of the electrode layer at the first location based on the first pixel; determining a second value for the material property of the electrode layer at the second location based on the second pixel; comparing the first value and the second value and determining a comparison value; and determining characteristic properties of the electrode layer based on the comparison value.

Abstract: Various embodiments of the teachings herein include a method for analyzing an electrode paste and/or an electrode layer for a battery cell. The method may include: measuring a property of the electrode layer paste and/or the electrode layer using a measuring facility; generating measurement data; and determining a quality value of the electrode layer paste and/or the electrode layer using an AI engine based on the measurement data.

Abstract: Various embodiments of the teachings herein include a method for analyzing an electrode paste and/or an electrode layer for a battery cell. The method may include: measuring a property of the electrode layer paste and/or the electrode layer using a measuring facility; generating measurement data; and determining a quality value of the electrode layer paste and/or the electrode layer using an AI engine based on the measurement data.

Abstract: Various embodiments of the teachings herein include methods and/or systems for operating a power system having a central control unit and two power system components. The method may include: determining a self-estimated value for each power system component based on a respective state value; providing the central control unit with a present maximum amount of power for each of the components; receiving a request for a demanded electrical power; ascertaining a distribution variable relating to the demanded power for each component based on the self-estimated values and the maximum amount of power output; and distributing a demanded electrical power to the power system components. The power system components comprise an energy generator unit, an energy consumer unit, or an energy storage unit.

Abstract: Various embodiments include a method for ascertaining the residual value of a used battery. The method may include: feeding the battery to a test station; bringing it to a test temperature; stabilizing the temperature within less than 2 K; measuring a load cycles using a high-precision coulometry apparatus; carrying out measurement until fulfilment of a termination criterion; ascertaining a first and a second value for a discharging capacity using two different calculation rules, wherein calibration is handled differently in the two calculation rules; carrying out an optimization process; determining a residual value of the battery; and determining whether the used battery is to be employed for use in a static energy storage device.

Abstract: The invention relates to a melting fuse, especially for a motor vehicle that has a high-voltage circuit, comprising an electrically insulating housing inside of which there is a fusible conductor that connects two contacts with each other, whereby, between two longitudinal areas that are adjacent to each other, the fusible conductor has a rotation point around which the longitudinal areas can be rotated in case of a thermo-mechanical expansion.

Abstract: The invention relates to a melting fuse, especially for a motor vehicle that has a high-voltage circuit, comprising an electrically insulating housing inside of which there is a fusible conductor that connects two contacts with each other, whereby, between two longitudinal areas that are adjacent to each other, the fusible conductor has a rotation point around which the longitudinal areas can be rotated in case of a thermo-mechanical expansion.

Abstract: A device and method for switching electrical load circuits involve the use of an overload contact integrated in an exciting current circuit of a magnetic coil. The electrical load circuits include an electromagnetic contactor having a magnetic drive formed from a magnet yoke with a magnet coil and a magnet armature to which a contact bridge is coupled as a movable contactor contact by a contact retainer. In the switched-on state the contactor generates a magnetic retaining force for contacting the contact bridge with fixed contacts. The retaining force results from a magnetic field generated by the magnet coil, and the retaining force is greater than an armature opening force. The overload contact is integrated in the exciting current circuit of the magnet coil in such a manner that that when the exciting current circuit is closed and a movement of the contact bridge against the magnetic retaining force occurs, the magnet coil can be short-circuited by closing the overload contact.

Abstract: A device and method for switching electrical load circuits involve the use of an overload contact integrated in an exciting current circuit of a magnetic coil. The electrical load circuits include an electromagnetic contactor having a magnetic drive formed from a magnet yoke with a magnet coil and a magnet armature to which a contact bridge is coupled as a movable contactor contact by a contact retainer. In the switched-on state the contactor generates a magnetic retaining force for contacting the contact bridge with fixed contacts. The retaining force results from a magnetic field generated by the magnet coil, and the retaining force is greater than an armature opening force. The overload contact is integrated in the exciting current circuit of the magnet coil in such a manner that that when the exciting current circuit is closed and a movement of the contact bridge against the magnetic retaining force occurs, the magnet coil can be short-circuited by closing the overload contact.

Abstract: Converter cell having at least one particularly rechargeable electrode assembly, that is designed to at least temporarily supply electrical energy particularly to a consumer, which has at least two electrodes of different polarity, with at least one current conducting device, which is designed to be electrically, preferably materially connected to one of the electrodes of the electrode assembly, with a cell housing with a first housing section, wherein the first housing section is designed to at enclose at least areas of the electrode assembly.