Varta Microbattery Gmbh

Vw Kraftwerk Gmbh

Vw-vm Forschungsgesellschaft Mbh & Co. Kg

Volkswagen Varta Microbattery Forschungsgesellschaft Mbh & Co. Kg

Stefan Stock

Konrad Holl

Werner Schreiber

Andreas Gaugler

Andreas Huth

Robert Sekler

Edward Pytlik

David Ensling

Stefanie Scholz

Ihor Chumak

Markus Pompetzki

Martin Elmer

Heiner Stelzig

Bernd Beck

Hald Rainer

A method of producing a battery with a prismatic battery housing includes assembling a battery housing from two prefabricated housing parts, of which the first housing part includes at least a partial region of the element including the at least one through hole as well as at least a partial region of a second element, bordering on the element including the at least one through hole, and the second housing part includes all elements and/or partial regions of elements not part of the first housing part.

Battery having a prismatic housing and production method thereof

A secondary energy storage element includes a reference electrode or a constituent thereof positioned between at least one ply of a separator layer and one of electrode layers and electrically insulated from the electrode layer by an insulating means, the reference electrode or the constituent thereof positioned such that there is at least one metal filament or a sheet-shaped metallic coating on a surface of the at least one ply of the separator layer or a surface of the insulating means, within an overlap region the at least one metal filament or the sheet-shaped metallic coating is arranged on the surface of a ply of the separator layer or a surface of the insulating means, and the at least one metal filament or the sheet-shaped metallic coating covers on the surface an area of a maximum of 5% of the area over which the overlap region extends.

Secondary energy storage element having a reference electrode

A battery includes a housing, at least one individual cell arranged in the housing and including at least one positive electrode and at least one negative electrode, a positive pole stud passed through the housing and electrically connected to the at least one positive electrode and/or a negative pole stud passed through the housing and electrically connected to the at least one negative electrode, at least one electrical switch which can be pneumatically operated and changes its switching state in the event of an increase in pressure within the housing beyond a threshold value and thereby interrupts the electrical connection between at least one of the pole studs and an associated at least one electrode, and a resetting device with which an electrical connection which is interrupted as a result of a change in the switching state can be re-established without the housing having to be opened.

Battery with a safety device which can be reset, and also suitable pole stud for the battery

A method produces electrode windings, in which method a strip- or ribbon-like anode and a strip- or ribbon-like cathode are provided and flat collector lugs are formed on at least one longitudinal side of the anode and of the cathode at varying distances and/or contours are cut into the longitudinal sides of the electrodes. The anode and the cathode are wound up together with a strip- or ribbon-like separator to form a winding with the sequence anode/separator/cathode. The method is distinguished, in particular, in that the process of forming collector lugs and/or of cutting contours and the process of winding up overlap with respect to time.

Method and device for producing electrode windings

Growing community of inventors

Rainau, Germany

Stefan Stock