Robert Boschgmbh

Samsung Sdi Co., Inc.

Hans Partes

Joachim Fetzer

Holger Fink

Stefan Butzmann

Hans-Joerg Wolff

Sarmimala Hore

Peter Feuerstack

Manfred Kirschner

Jens Graf

Anne Heubner

Matthias Heil

Markus Hald

Rostislav Rogov

Bernhard Seubert

The invention relates to a method for operating a battery system (EB), preferably a lithium-ion battery system, containing at least one battery device, wherein in the case that a safe state of the at least one battery device is brought about from an irregular operating state of the at least one battery device, a current state of the at least one battery device is continuously checked and evaluated by means of at least one component (CSC) of the battery system and the bringing about of the safe state is performed in dependence on the current state of the at least one battery device or an environmental state of the at least one battery device, wherein in particular after the safe state of the at least one battery device has been brought about, hazard information is transmitted to a battery management system (BMS) by means of the at least one component (CSC) of the battery system (EB), wherein the hazard information in particular is hazard information about the current state of the at least one battery device and/or about the environmental state of the at least one battery device and/or about the fact that the safe state of the at least one battery device is present.

Method and device for increasing the safety during the use of battery systems

The disclosure describes a method for operating a battery system having at least a first battery module and a second battery module. The method includes activating the first battery module for a defined clock time, then activating the second battery module for the defined clock time, and at the same time deactivating the first battery module.

Method for operating a battery system, battery system and motor vehicle

A battery module comprising a plurality of chambers of a first type, a chamber of a second type, a plurality of chambers of a third type, at least one battery unit positioned in one of the plurality of chambers of the first type, and switching electronics positioned in the chamber of the second type. At least one of the plurality of chambers of the third type is positioned between one of the plurality of chambers of the first type and the chamber of the second type.

Connectable battery module

The disclosure relates to a power supply device for an electrically operable vehicle having an electric drive motor. The power supply device comprises an electric energy accumulator device, a range-extender with an internal combustion engine and a generator producing alternating current. The generator is mechanically connectable to the internal combustion engine, and the energy accumulator device is configured to be charged during driving with the alternating current from the generator. The energy accumulator device comprises several power supply connections on which respectively one of several controllable potentials can be provided, and several power supply branches having several serially connected power cell modules. Several power supply branches are interconnected on one end to the neutral point and each power supply connection is connectable to one end of a power supply branch.

Power supply device for an electrically operable vehicle and charging method

The disclosure relates to a method for battery module balancing of a battery, which comprises at least one battery module string, wherein the at least one battery module string has a plurality of battery modules connected in series or parallel, wherein each battery module has a single or a plurality of battery cells connected in parallel or in series and a coupling unit which is designed to switch on and off the battery module, said method comprising the steps of: determining a battery module state of at least two battery modules; switching off individual battery modules having a low battery module state, wherein the low state is defined by a defined ratio to an initial state of the battery modules or by a result of a comparison of all detected battery module states.

Method for battery module balancing and battery management system

A battery management system for a battery module string includes battery modules. The battery modules are electrically connectable to poles of the battery module string and individually electrically disconnectable. The battery module string is configured to generate an AC voltage by disconnecting and connecting the battery modules. The battery management system is configured to assign a respective first time period to each first battery module of the battery modules based on position of each first battery module in a battery module list. Each of the first battery module is electrically connected within a half-cycle of the AC voltage during the respective first time period.

Battery management system for generating a periodic alternating voltage based on battery state of wear

The disclosure relates to a method for determining a Coulombic efficiency of battery modules of a rechargeable battery with a circuit arrangement connected to the battery modules. The circuit arrangement has multiple current paths, each of which has a series circuit of switch modules and at least one power semiconductor element which can be operated in a linear mode in order to regulate the current flowing through the respective current path, and one of the battery modules is connected to each of the switch modules. Each of the switch modules is configured as a switch module for selectively connecting the connected battery module into the respective current path or to alternatively remove the connected battery module from the respective current path. In each of the current paths at least one of the battery modules is selected with the switch module.

Method and circuit arrangement for determining the Coulombic efficiency of battery modules

The disclosure describes a method for determining a coulombic efficiency of battery modules of a rechargeable battery using a circuit arrangement connected to the battery modules and that has a plurality of switching modules for selectively connecting every single one of the battery modules in a common current path or for alternatively isolating every single one of the battery modules from the common current path and from at least one power semiconductor element, which can be operated in linear mode, for regulating the current that flows through the current path. The switching modules are used to select at least one of the battery modules and to connect it in the current path while all other battery modules are isolated from the current path by the switching modules. The selected battery module is subjected to at least one discharge process and at least one charging process via the current path.

The invention relates to a method for operating intrinsically safe battery cells after charging of an intrinsically safe battery cell at a low temperature. In accordance with the invention, provision is made here for the determination of the discharge curve of the battery cell to then be performed, for the discharge curve of the battery cell to be analyzed in respect of the presence of plating criteria and for a change to operation in a monitoring mode to be made if at least one plating criterion is present, wherein the capacity of the intrinsically safe battery cell is monitored in the monitoring mode. The invention furthermore relates to an intrinsically safe battery cell which is designed for implementing the method.

Method for operating intrinsically safe battery cells

The invention relates to an energy storage module for an energy storage device, comprising an energy storage cell module which has a storage cell series circuit of at least two energy storage cells, comprising a coupling device, which comprises a plurality of coupling elements and is designed to selectively connect the energy storage cell module into an energy supply line of the energy storage device or to bypass the energy storage cell module in an energy supply line, and comprising a driver module which is designed to generate drive signals for the plurality of coupling elements. The driver module has a first energy supply connection and a second energy supply connection. The first energy supply connection is connected to a first end connection of the energy storage cell module via a first supply line and to a first node point between two energy storage cells of the storage cell series circuit via a second supply line. The second energy supply connection is connected to a second end connection of the energy storage cell module via a third supply line and to a second node point between two energy storage cells of the storage cell series circuit via a fourth supply line. The second node point lies between the first node point and the first end connection.

Internal energy supply of energy storage modules for an energy storage device, and energy storage device with such an internal energy supply

Method for increasing safety when using bursting discs (BV), wherein the bursting disc (BV) is suitable for releasing gas in a controlled manner from battery systems (B), wherein a signal, in particular a warning signal, is generated in dependence upon the spatial change at least of one site on the surface of the bursting disc (BV).

Method and device for increasing safety when using battery systems and bursting discs

A method for heating energy storage cells of an energy storage system configured to generate an n-phase supply voltage. The energy storage system including n energy supply branches connected in parallel. Each energy supply branch coupled between an output connection and an equipotential frame, and each of the energy supply branches including a plurality of series-connected energy storage modules. Each energy storage module including an energy storage cell module having at least one energy storage cell and a coupling device having coupling elements configured to selectively connect or bridge the energy storage cell module in a respective energy supply branch. The method includes connecting the output connections of the energy storage system to input connections of an n-phase electrical machine, and coupling the output connections via a neutral point of the electrical machine.

Method for heating energy storage cells of an energy storage system, and heatable energy storage system

A set of peripheral chips for realizing hardware functions of a control device has at least two electronic units, which allow partitioning for the purpose of providing at least one basic functionality for a control device. This first and/or second electronic unit(s) may typically be configured as application-specific electronic switching circuit (ASIC).

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Asperg, Germany

Hans Partes