Robert Boschgmbh

Samsung Sdi Co., Inc.

Alexander Reitzle

Sarmimala Hore

Juergen Hackenberg

Norman Krings

Markus Kohlberger

Markus Hald

Holger Fink

Joachim Fetzer

Ralf Angerbauer

Sven Bergmann

Berengar Krieg

Romuald Fries

Michael Gless

Conrad Bubeck

Felix Eberle

Ulrich Lange

Ulrich Zimmermann

Marc Heydemann

Rainer Kern

Herbert Gruhn

Frank Dallinger

Mike Martinko

A battery module includes a number of battery cells, which are connected to each other at connection poles. The battery cells have respective hard shell housings, in which at least one bus bar extends. A number of wound and/or stacked battery cells is electrically contacted by the at least one bus bar.

Battery cell assembly

The invention relates to a method for operating a battery having at least one battery module () with at least one battery cell (), having the following method steps: a. determining a first value of at least one first monitored variable of the at least one battery module () and/or the at least one battery cell (), c. checking whether the determined first value of the at least one first monitored variable lies within a specified first target range for the at least one first monitored variable, the first target range being determined in particular in a method step b, and d. replacing the at least one battery module () with a different battery module and/or replacing the at least one battery cell () with a different battery cell if the determined first value of the at least one first monitored variable lies outside of the first target range for the at least one first monitored variable, wherein the first value of the at least one first monitored variable for the other battery module or the other battery cell lies within the first target range for the at least one first monitored variable.

Method for operating a battery, and battery

The invention relates to a battery module housing which forms a first housing segment () and a second housing segment () which form accommodation spaces () that are separated from one another, each housing segment being used to accommodate at least one battery cell (), wherein the battery module housing () is closable using a cover element () which forms a first cover segment () and a second cover segment (). The first housing segment () is closable using the first cover segment () and the second housing segment () is closable using the second cover segment (), wherein the cover element () has a dividing line () which is formed in such a way that the first cover segment () and the second cover segment () can be separated from one another along the dividing line ().

Battery module housing, battery module, cover element for a battery module housing of this type or for a battery module of this type, method for producing a battery module of this type, and battery

A battery cell includes a membrane configured to curve outwards when pressure inside the battery cell increases, thereby creating an electrically conductive connection between two poles. A conductor is arranged on an outside of the membrane and is connected to the battery cell such that the outward-curving membrane lifts the conductor from the membrane on one side such that the poles are electrically connected to one another via the conductor.

Battery cell, battery, motor vehicle

A device for controlling a temperature of an electric energy store of a vehicle includes a first flow path which opens into a housing of the electric energy store and has an air conditioning system for air-conditioning a passenger compartment of the vehicle. The air conditioning system includes a heating and/or cooling device and a second flow path which leads from the at least one heating and/or cooling device into the passenger compartment. The two flow paths are connected in the device such that an airflow in one of the two flow paths is fluidically independent of an airflow in the respective other of the two flow paths. The device has a heat exchanger which is connected in the two flow paths for a pure heat exchange between the air flows in the two flow paths.

Device and method for controlling the temperature of an electric energy store of a vehicle

The invention relates to a method for operating a battery cell (), in particular a lithium-ion battery cell, having at least one wound or stacked electrode assembly () arranged in a housing, said electrode assembly comprising a first electrode layer (), at least one separator layer () and a second electrode layer (), and a non-aqueous electrolyte containing one or more solvents and one or more conductive salts. When the battery cell () reaches a critical state, a chemical substance or a chemical substance mixture () is released, which forms complexes with the lithium ions () in the electrolyte ().

Method for operating a battery cell

The invention relates to a method for determining the temperature of a battery, comprising the following steps: a) determining the state of charge of at least one battery cell; b) determining a change in the open-circuit voltage (V, V) of the at least one battery cell immediately after the end of the flow of an electric current (I, I) through the at least one battery cell; and c) determining the temperature of the at least one battery cell on the basis of the state of charge and the change in the open-circuit voltage (V, V). The method described above economically enables especially reliable operation of the battery that is stable over the long term.

Method for determining the temperature of a battery

The invention relates to a battery pack having a plurality of electrochemical battery cells, comprising a device for measuring a difference between two cell currents of two different battery cells, wherein a first battery cell has a first wound element, consisting of a first electrode layer and a second electrode layer, which causes a first magnetic field via a first of the cell currents, and a second battery cell has a second wound element, consisting of a third electrode layer and a fourth electrode layer, which causes a second magnetic field via a second of the cell currents, wherein the first and the second wound elements are arranged relative to each other such that the first magnetic field counteracts the second magnetic field in the case of the first and second cell current being rectified, wherein the battery pack additionally comprises a magnetic field sensor which is configured to measure a superimposed field consisting of the first magnetic field and the second magnetic field, and comprises an evaluating unit which is configured to determine a difference between the first and the second cell current from the measured superimposed field.

Battery pack having a plurality of electrochemical battery cells having a device for measuring a difference between two cell currents of two different battery cells

A housing for a gas-tight rechargeable battery includes a proportional valve that is arranged at an opening in a housing wall. The proportional valve has a valve body that is influenced by force in the direction of its closed position and towards the interior of the housing. The proportional valve is embodied at least partially from metal such that it allows the through-flow of gas if the pressure that is prevailing in the housing exceeds a construction-dependent pressure limit value. The proportional valve is configured to be connected electrically to the cathode of the rechargeable battery. A contact element embodied at least partially from metal is configured to be connected electrically to the anode of the rechargeable battery and is arranged on the outside of the housing such that the valve body comes into physical contact with the contact element after the proportional valve has achieved a defined open position.

Housing for a gas-tight rechargeable battery

A fuel cell, having a first electrode, a second electrode, and a membrane element, in which the membrane element is disposed between the first electrode and the second electrode. At least one of the electrodes has a flow field plate and at least one flow conduit, through which a reactant can be conducted, extends in at least one outer surface of the flow field plate. The flow field plate has at least one microreaction chamber, and the microreaction chamber is disposed in the outer surface and on the flow conduit. A catalyst is disposed on at least a part of the microreaction chamber in such a way that the catalyst has contact simultaneously with the membrane element and the inflowing reactant.

Fuel cell flow field plate having catalyst disposed in microreaction chambers, and method for producing thereof

A method and a device for reducing the humidity of a gas in a housing interior, in particular in a battery housing interior, includes leading a gas through a first selectively permeable membrane and into an intermediate space. The intermediate space has the first selectively permeable membrane as an inlet and a second selectively permeable membrane as an outlet. The gas is then cooled in the intermediate space by a cooling unit such that a water vapor portion of the gas is condensed into water and the gas having a reduced water vapor content is directed through the second selectively permeable membrane into the housing interior.

Method and device for reducing the humidity of a gas in a housing interior

In a method for setting the distance between an electrode and a workpiece in electrochemical metal working, the electrode is moved by an oscillating drive system, in which an acceleration signal of the oscillating drive system is picked up, the acceleration signal is divided into individual sections, characteristic magnitudes of the individual sections of the acceleration signal are determined, the characteristic magnitudes of the individual sections are compared to one another and the distance of the electrode from the workpiece is adjusted in response to a deviation of the characteristic magnitudes from the specified values. A device for carrying out the method includes an electrode, that is connected to a drive axis, an oscillating motion being able to be transferred to the electrode via the drive axis. A sensor is situated on the drive axis which picks up acceleration signals.

Method for setting a distance between an electrode and a workpiece

The invention relates to a fuel cell, having a first electrode, a second electrode, and a membrane element, in which the membrane element is disposed between the first electrode and the second electrode. At least one of the electrodes has a flow field plate and at least one flow conduit, through which a reactant can be conducted, extends in at least one outer surface of the flow field plate. According to the invention, it is provided that the flow field plate has at least one microreaction chamber, and the microreaction chamber is disposed in the outer surface and on the flow conduit. A catalyst is disposed on at least a part of the microreaction chamber in such a way that the catalyst has contact simultaneously with the membrane element and the inflowing reactant.

Growing community of inventors

Neu-Ulm, Germany

Alexander Reitzle