Robert Boschgmbh

Lithium Energy and Power Gmbh & Co. Kg

Gs Yuasa International Ltd.

Cornelius Liebenow

Rainer Glauning

Stephan Leuthner

Thomas Huber

Jochen Fassnacht

Michael Lehner

Hideki Masuda

Volker Doege

Marco Friedrich

Thomas Heinrich

Yutaro Katsumata

Marcel Wilka

Yuji Ashida

Shunsuke Mizutani

Daisuke Konishi

Shinya Kitano

Jochen Bertsch

Markus Klinsmann

Gaetan Deromelaere

Tobias Bach

A battery cell (BZ), in particular a lithium-ion battery cell, wherein the battery cell (BZ) has a number of contact sensor elements (S) for detecting elements (N) which bear on the contact sensor elements (S) or apply pressure to the contact sensor elements (S), wherein the contact sensor elements (S) are electrically insulated from one another.

Device for increasing safety when using battery systems

A battery cell () with two battery cell terminals () which are contactable from inside and/or outside the battery cell (), and an electrochemical part () comprising at least one separator. Upon the achievement of a predefined temperature, the at least one separator is at least partially impermeable to ions which can be generated in the electrochemical part (). The battery cell () has a rapid discharge unit (), which is connectable between the battery cell terminals () and which, in a switched-in and consequently activated state, has a predefined resistance value. The predefined resistance value is selected such that, with the rapid discharge unit () switched-in, the at least one separator achieves the predefined temperature.

Battery cell with a rapid discharge unit and rapid discharge method for such a battery cell

A safety device includes a discharge device for discharging an electric energy store in response to a deformation of the energy store, that is impending or has occurred.

Safety device

The invention relates to a method and a device for power management of an electrical drive for a hybrid vehicle, wherein the method comprises the following steps: detecting (S) an adjustable power requirement for the electrical drive device and an available electrical battery capacity of the electrical energy store by means of a detecting unit (); comparing (S) the detected adjustable power requirement to the detected available electrical battery capacity by means of a control unit (); and deactivating (S) at least one of the electrical consumers in dependence on criteria specified by the control unit for one or a plurality of specified time intervals by the control unit (), if the comparison results in a lower available electrical battery capacity than the adjustable power requirement.

Method and apparatus for power management of an electric drive for a hybrid vehicle

In a method for detecting an overload situation in a battery-operated device having an electric motor, a load current of the electric motor is ascertained and used to deduce a thermal overload of the battery in such a manner, that, starting out from a static temperature limit, a temporally variable, maximum permissible temperature limit for the battery is calculated using a specifiable function dependent on the ascertained load current. The calculated, variable temperature limit is compared to a current, measured temperature of the battery, and a thermal overload of the battery is deduced from the result of the comparison.

Method and device for overload detection in battery-operated devices having an electric motor

A rechargeable battery having a switch connects an internal load to the battery so that the battery can be shifted to a predetermined, lower load state. To shift the rechargeable battery into a lower load state for long-term storage, a Zener diode is connected in series with a resistor and the switch. The rechargeable battery voltage, which corresponds to the predetermined, lower load state, is selected as the breakdown voltage of the Zener diode. Manual actuation of the switch shifts the rechargeable battery to a lower load state, if the current load state is higher than the predetermined, lower load state. A digital version has a digital circuit connected electrically to the switch which is arranged for measuring the rechargeable battery voltage and which in the ON state triggers the switch if the measured rechargeable voltage exceeds a value that corresponds to the predetermined, lower load state.

Rechargeable battery with an internal discharger for shifting the load state of the battery to a lower load state

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Stuttgart, Germany

Cornelius Liebenow