Johnson Controls Autobatterie Gmbh & Co. Kgaa

Johnson Controls Technology Company

Clarios Germany Gmbh & Co. Kg

Vb Autobatterie Gmbh & Co. Kgaa

Clarios Germany Gmbh & Co. Kgaa

Dirk Bremer

Peter Streuer

Ingo Koch

Donald J Caldwell

Jerome R Heiman

Armin Staffeldt

Doreen Lucht

Amo Koerber

Jerone Heiman

Arne Körber

The invention relates to a rechargeable battery comprising a battery housing which has a cell cavity, or several cell cavities separated by dividing walls. One or more of the cell cavities have at least one respective positive and negative electrode, separated from each other by at least one separator, and a liquid electrolyte. One or more of the cell cavities have a respective wall element, which partitions the respective cell cavity into at least two volume chambers which communicate with one another. At least in the lower regions of the volume chambers, a communicating connection between the volume chambers for the liquid electrolytes is provided and in the upper region of the volume chambers, a pressure compensation connection between the volume chambers for assuring equal air pressure in the volume chambers communicating chambers is provided. Also disclosed is a wall element for such a rechargeable battery, and a battery housing.

Rechargeable battery having a wall element and wall element therefor

The invention relates to a rechargeable battery comprising a battery housing which has a cell cavity, or several cell cavities separated by dividing walls. One or more of the cell cavities have at least one respective positive and negative electrode, separated from each other by at least one separator and a liquid electrolyte. One or more of the cell cavities have a respective wall element, which partitions the respective cell cavity into at least two volume chambers which communicate with one another. At least in the lower regions of the volume chambers, a communicating connection between the volume chambers for the liquid electrolytes is provided and in the upper region of the volume chambers, a pressure compensation connection between the volume chambers for assuring equal air pressure in the volume chambers communicating chambers is provided. Also disclosed is a wall element for such a rechargeable battery, and a battery housing.

The invention relates to a venting device () for an electrochemical battery (). The venting device comprises at least one inlet opening () for receiving gases venting from the battery (), at least one outlet opening () for venting the gases received from the battery (), and at least one flame arrester element (). The inlet opening () is in communication with the outlet opening () via the flame arrester element (). An explosion chamber () is located within the venting device () on the side of the flame arrester element () which is directed to the outlet opening (). The explosion chamber () is arranged for developing and temporarily storing an explosive mixture of the gases received from the battery () and oxygen from the ambient air, which explodes in case a flame occurs within the explosion chamber (), thereby blowing off the flame.

Venting device for an electrochemical battery and battery with a venting device

An accumulator with an accumulator housing, having at least one cell changer, with several electrodes and liquid electrolyte in each cell chamber with at least one wall element in the cell chambers to divide the cell chambers into at least two intercommunicating volume chambers. In the lower region of the volume chambers is a communicating connection for the liquid electrolyte between the volume chambers and a pressure equalization connection between the volume chambers is arranged in the upper region of the volume chambers to assure an equivalent air pressure in the intercommunicating volume chambers. The wall elements extend at least far upwards such that on movement of the accumulator firstly electrolyte in at least one volume chamber flows through the intercommunicating connection in the lower region and secondly electrolyte again flows through the intercommunicating connection in the lower region out of said at least one volume region without an overflow of liquid electrolyte from one volume chamber to the adjacent volume chamber over the upper edge of the wall elements.

Accumulator

Growing community of inventors

Neustadt, Germany

Dirk Bremer