Robert Boschgmbh

Gs Yuasa International Ltd.

Lithium Energy and Power Gmbh & Co. Kg

Matthias Riedmann

Peter Kohn

Christian Wagner

Robert Hafenbrak

Daniel Bernd Greiner

Ulrich Zimmermann

Stephan Rees

The invention relates to a battery module having a plurality of battery cells, in particular lithium-ion battery cells, having a plurality of partitions (), wherein a battery cell () is arranged between two partitions (), and a spring element () is furthermore arranged between two partitions () adjacent to a battery cell (), in particular a tension and/or compression spring element, which is arranged in a manner contacting and/or connected to the two partitions () such that a value of a deformation constant () of the spring element () determines a force transmitted by the two partitions () to the battery cell ().

Battery module having a plurality of battery cells, method for the production thereof, and battery

The invention relates to a battery module having a plurality of battery cells, in particular lithium ion battery cells, comprising a plurality of separating walls (), wherein a battery cell () is arranged between two separating walls () and a first compensating element () is arranged between a first battery cell () and a separating wall () adjacent to the first battery cell () and a second compensating element () is arranged between a second battery cell () and a separating wall () adjacent to the second battery cell (), characterized in that the first compensating element () and the second compensating element () have a different value () of a deformation constant.

The invention relates to a battery cell () comprising a first terminal (), which is electrically conductively connected to a first electrode, and a second terminal (), which is electrically conductively connected to a second electrode, the first terminal () being arranged inside the second terminal (). The invention further relates to a battery module () comprising corresponding battery cells (), to a battery, to a method for producing the battery module (), and to a use for the battery.

Battery cell comprising a first terminal arranged inside a second terminal

A method for the resistive charge equalization of battery cells of a battery, includes, in a first step, ascertaining the state of charge of the battery cells ascertained and correlating the battery cells of which the state of charge exceeds a predefined value with a first mask, which permits charge equalization only for a predefined portion of all the battery cells, wherein, then, charge equalization is performed. In a second step, the state of charge of the battery cells is optionally ascertained again and the battery cells of which the state of charge exceeds a predefined value are correlated with a second mask, which differs from the first mask, and wherein, then, charge equalization is performed. As a result, the heat generated during charge equalization is distributed in space and time such that no local overheating of or damage to components occurs and no overtemperature disconnection of the battery occurs.

Method for the resistive cell equalization of battery cells of a battery, a battery which is controlled in accordance with the method, and a motor vehicle

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Winnenden, Germany

Matthias Riedmann