Robert Boschgmbh

Thomas Dufaux

Olivier Cois

Andre Boehm

Frank Gottwald

Andreas Lemke

Christian Korn

Frank Stimm

Ulrich Lange

Benjamin Mangold

Joerg Ziegler

Ulrich Hasenkox

Rainer Heinrich Hoerlein

The invention relates to a method for operating an electrical energy store, comprising a storage cell for storing electrical energy and a control unit, wherein a safety switch is provided which is designed to interrupt an electrical line of the electrical energy store, wherein a current flowing through the electrical line is detected and an actuation of the safety switch only occurs if the current is below a predefinable threshold value.

Method for operating an electrical energy store

The present invention relates to a method for controlling a regeneration procedure of a lithium battery cell () which comprises an anode (), a cathode () and the regeneration electrode (). The method comprises: detecting a current availability of cyclable lithium in the anode (); detecting a current availability of cyclable lithium in the cathode (); passing a first current (I) between the anode () and the regeneration electrode () until the actual availability of cyclable lithium in the anode () corresponds to a targeted availability of cyclable lithium in the anode (); and passing a second current (I) between the cathode () and the regeneration electrode () until the current availability of cyclable lithium in the cathode () corresponds to a targeted availability of cyclable lithium in the cathode ().

Method for controlling a regeneration process of a lithium-ion battery cell that comprises an anode, a cathode and a regeneration electrode

A method determines a potential of an anode and/or a potential of a cathode in a battery cell. The method measures a current flowing through the battery cell, determines a charge transfer resistance of the battery cell, ascertains a charge transfer resistance of the anode and a charge transfer resistance of the cathode, ascertains a depth of discharge, ascertains an anode residual voltage and a cathode residual voltage from the depth of discharge from an idle voltage, ascertains an anode excess potential from the charge transfer resistance of the anode and the current and ascertains a cathode excess potential from the charge transfer resistance of the cathode and the current. The method ascertains the potential of the anode from the anode residual voltage and the anode excess potential and ascertains the potential of the cathode from the cathode residual potential and the cathode excess potential.

Method for determining a potential of an anode and/or a potential of a cathode in a battery cell

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

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Stuttgart, Germany

Thomas Dufaux