Robert Boschgmbh

Samsung Sdi Co., Inc.

Lithium Energy and Power Gmbh & Co. Kg

Gs Yuasa International Ltd.

Frank Stimm

Benjamin Mangold

Andreas Heyl

Claus Gerald Pflueger

Berengar Krieg

Alfons Doerr

Andreas Lemke

Christian Korn

Peter Kohn

Andreas Bosch

Michael Steil

Ulrich Lange

Thomas Dufaux

Joerg Christoph Wilhelm

Christoph Fischer

Ramanathan Swaminathan

Regine Mantel

Bernhard Huber

Electrical energy storage system comprising a plurality of electrochemical energy stores, which are electrically connectable to primary connection poles of the electrical energy storage system for providing a primary voltage; secondary connection poles for providing a secondary voltage, wherein the secondary connection poles are electrically connectable to an electric power source by means of secondary switches; at least one first primary switch, which is electrically connected to an electrical connection between two of the electrochemical energy stores and to an electrical connection between a first secondary switch and a first secondary connection pole, wherein the electrochemical energy stores electrically connected between the electrical connection and a second primary connection pole are electrically connectable to the first secondary connection pole of the electrical energy storage system by means of the first primary switch to provide a secondary voltage, which is lower than the primary voltage.

Electrical energy storage system and method for operating same

The present invention relates to a method for operating an energy storage unit having a plurality of battery cells () electrically connected to one another, each battery cell comprising an over-voltage protection device and a cell protection, wherein an adjacent battery cell voltage () on each battery cell () of the energy storage unit is monitored to determine whether said battery cell voltage is larger than a predetermined cell voltage minimum value (), wherein the energy storage unit is switched off when the battery cell voltage () drops below the cell voltage minimum value (). Thereby the battery cells () are monitored with respect to a triggering of the respective over-voltage protection devices, wherein the energy storage unit is further operated if a battery cell voltage () of a battery cell () of the energy storage unit exceeds the cell voltage minimum value () and the triggering of the over-voltage protection device of this battery cell () is thereby detected. The present invention further relates to a battery management system configured to carry out the method and an energy storage unit with such a battery management system.

Method for operating an energy storage unit, battery management system for performing such a method and energy storage unit with such a battery management system

The invention relates to a cooling plate () for battery cells (), wherein the cooling plate () is in the form of a mounting plate and has mounting elements () for directly mounting the cooling plate () into a motor vehicle. It is further necessary for the cooling plate () together with a housing (), in particular a half-shell housing, to form a closed-off space () for accommodating battery cells (). The invention further relates to battery cells (), to a battery cell module and also to a motor vehicle having a battery cell module of this kind.

Cooling plate for a battery cell in the form of a mounting plate

Detection of corrosion within an at least partially electrically conductive housing of an electric energy storage unit. The electric energy storage unit has a positive terminal and a resistance element between the positive terminal and the housing. State of charge values of the electric energy storage unit for at least one first instant of time and at least one second instant of time are determined. An electrical isolation resistance value between the housing of the electric energy storage unit and at least one reference point for at least one third instant of time may also be determined. A first comparison of a difference of the determined state of charge values with a predefined state of charge difference value for the electric energy storage unit and/or a second comparison of the determined electrical isolation resistance value with a predefined electrical isolation resistance value for the electric energy storage unit are performed.

Method and device for the detection of corrosion within an at least partially electrically conductive housing of an electric energy storage unit and corresponding electric energy storage system

The invention relates to a method for managing a battery comprising a plurality of battery cells, wherein a maximum value of a current that can be delivered by the battery is adjusted on the basis of a frequency distribution () of a root mean square current delivered by the battery. The invention further relates to a battery management system and a computer program for carrying out said method as well as to a motor vehicle comprising a battery which includes a battery management system of said type.

Method for battery management and battery management system

The disclosure relates to a vehicle architecture for controlling and regulating an electric drive of an electric or hybrid vehicle, having a power electronics system which is connected firstly to the electric drive and secondly to a battery or to a battery system. A battery management system is associated with the battery or the battery system. The vehicle architecture comprises a master controller or a controller which is equipped with a master functionality into which functionalities at least of the battery management system and of the power electronics system of the electric drive are exported.

Method for operating a battery system

A monitoring device for a battery, a lithium-ion battery with the monitoring device and a method for the monitoring of a battery, wherein the battery is provided with a plurality of cell composites comprising a number of mutually parallel-interconnected battery cells. The cell composites are also interconnected by means of electrical cell couplers, and one or more temperature sensors are arranged between the cell composites. Where a voltage drop across one or more of the battery cells on the electrical cell couplers exceeds a predetermined value and, simultaneously, a temperature occurs on at least one of the temperature sensors which exceeds a predetermined value, a fault signal is generated. The defective battery cell can then be isolated from the cell composite.

Monitoring device for a battery, a lithium-ion battery, and method for the monitoring of a battery

A security architecture, a battery, and a motor vehicle that has a corresponding battery are configured to be used to combine battery packs of a lower security integrity level into a battery system that has a higher security integrity level. The security architecture is for at least two batteries and each battery includes at least one electrochemical cell. The at least two batteries are each combined with at least one data processing unit to form a respective module. The security architecture is configured such that input signals of at least one second module are processed by the at least one data processing unit of at least one first module.

Growing community of inventors

Leonberg, Germany

Frank Stimm