Volkswagen Ag

Powerco Se

Plr Prüftechnik Linke & Rühe Gmbh

Alexander Breuer

Dennis Böhm

Frederik Grau

Sven Rathmann

Patrick Zihrul

Bastian Westphal

Marco Jordan

Markus Ramm

Karsten Dilz

Talia Batres Hermosillo

Mathias Kraken

Malte Schönemann

Lars Fietkau

Christina Freifrau Von Boeselager

Ruben Leithoff

Arian FRÖHLICH

A method for manufacturing a component, the component having a multiplicity of cell foils for storing electrical energy that are stacked on top of one another and at least one contact plate, wherein the cell foils form a foil stack in a connection portion, and the foil stack is connected to the contact plate by at least one weld seam for the electrical contacting of the cell foils via the contact plate. Furthermore, a corresponding component and a device for manufacturing such a component are also specified.

Method and device for producing a component for a battery cell and such a component

A method for producing a component for storing electrical energy, said component comprising at least one cell stack for storing electrical energy and at least one contact element for making electrical contact with the at least one cell stack, has at least the following steps: a) arranging at least part of the at least one cell stack and the at least one contact element in a defined arrangement relative to one other in, or against a chamber that can be evacuated; b) evacuating at least some of the gas in the chamber; c) connecting the at least one cell stack and the at least one contact element together to form an electrically conductive connection by means of at least one laser beam introduced into the chamber.

Connecting a cell stack to at least one contact element in a vacuum using a laser

A method for cutting a continuous battery electrode material in order to produce battery electrodes includes providing a continuous battery electrode material and providing a transport device which is designed to move the continuous battery electrode material in a movement direction from a starting point to an end point over a machining region, wherein the transport device comprises at least two transport units. Additionally, at least one cutting device is provided. The continuous battery electrode material is then machined while being moved in the movement direction by means of the at least one cutting device such that at least one machining step is carried out on the continuous battery electrode material. At least one dimension of at least one of the at least two transport units is smaller than at least one dimension of the continuous battery electrode material at least in one region.

Method for cutting a continuous battery electrode material in order to produce battery electrodes, and a battery electrode

A method for characterizing at least one joined connection between at least two components, whereby an eddy-current sensor is consecutively moved several times over the at least one weld, thereby generating a plurality of data sets of the detected measuring signals in various parallel sectional planes of the weld, and whereby, on the basis of the plurality of data sets, a projection data set is subsequently determined as the measure of the spatial distribution of the measuring signals along the at least one joined connection.

Method for characterizing a weld

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Celle, Germany

Alexander Breuer