Abstract: A composite of two components which are used for current conduction, includes: a through opening formed in a first component; and a connection section of a second component which is insertable into the through opening in an installation direction so that a friction-locked connection in the form of a press-fit connection is formed at least regionally between the through opening and the connection section. The connection section and a holding section of the second component protrude beyond the first component in the area of the through opening in the installation direction in the installed state, and the holding section has at least one area for an installation aid which is reduced in cross section in relation to the cross-sectional area of the through opening.

Abstract: The invention relates to a contact element (10) with a plug side (14) and a solder side (16) to be contacted with a circuit board or a carrier substrate. The contact element (10) is produced from an Al/Cu material composite (36), the Cu portion (42) of which forms the plug side (14) and the Al portion (44) of which forms the solder side (16) of the contact element (10).

Abstract: A battery assembly, including multiple battery cells, which are electrically connected to one another and each of which includes a prismatic cell housing. Each cell housing has at least one fastening protrusion on a cell bottom, this fastening protrusion, protruding through an opening of a cooling element, which is configured as a cooling plate or as a cooling housing for the cell housings, the fastening protrusion cooperating with a clamping element, which clamps the cell housing against the cooling element.

Abstract: A method is described for connecting two battery terminals, made of dissimilar materials, of two battery cells with the aid of a form-fitting, and/or force-locking and/or integrally bonded connection. The two battery terminals are interconnected in a connecting region with the aid of an electromagnetic pulse method, in particular by a magnetic pulse welded connection.

Abstract: A method for connecting poles of two battery cells includes using a connecting element, which is configured as a stranded wire and connects the poles of the battery cells to one another. The stranded wire is connected directly to a pole of a battery cell in a welding area with a laser beam for forming a laser beam weld.

Abstract: A temperature sensor is described for detecting a temperature of a battery cell. The temperature sensor has a first electrical conductor having a first end for connecting the first conductor to an element of the battery cell and having a second end for connecting the first conductor to a first input of a measuring device and a second electrical conductor having a first end for connecting the second conductor to the element of the battery cell and having a second end for connecting the second conductor to a second input of the measuring device.

Abstract: A composite of two components which are used for current conduction, includes: a through opening formed in a first component; and a connection section of a second component which is insertable into the through opening in an installation direction so that a friction-locked connection in the form of a press-fit connection is formed at least regionally between the through opening and the connection section. The connection section and a holding section of the second component protrude beyond the first component in the area of the through opening in the installation direction in the installed state, and the holding section has at least one area for an installation aid which is reduced in cross section in relation to the cross-sectional area of the through opening.

Abstract: A component composite between two components used for current conduction, having a receptacle opening formed on the first component and a connection section of the second component, which is situated in the receptacle opening, the connection section of the second component being configured to be pin-shaped and a press-fit connection being formed between the receptacle opening and the connection section. In particular, it is provided that the receptacle opening is configured to be a blind hole.

Abstract: A method for connecting different types of metallic joining partners using a radiation source, the two joining partners, having a different melting temperature, at least indirectly making contact lying against each other in the region of a joining zone, and the radiation source introducing its radiation energy into the one joining partner in a region next to the joining zone. It is provided that, because of the radiation source in the joining zone only the joining partner having a lower melting temperature is melted.

Abstract: In a method for manufacturing a connecting contact for an electrode of an electrochemical store, the electrode having a first material, a contact element made of a second material is provided, the contact element having a section coated using the first material, and the coated section is electrically and mechanically connected to the electrode to manufacture the connecting contact.

Abstract: A method for producing an energy cell, in particular an energy storage cell or battery, having the steps of: arranging a plurality of films of the energy cell at a processing location, and cutting the plurality of films in one operation, wherein the cutting of the films is carried out by a laser beam, and wherein the laser beam is guided in a liquid. Also an apparatus for producing an energy cell.

Abstract: A laser beam machining device includes at least one laser beam source for acting upon at least one workpiece using an annular laser focus. Means are provided for imaging the laser radiation reflected from the workpiece on a sensor unit. A method for adjusting the focal position of an annular laser focus in relation to at least one workpiece is also provided.

Abstract: Method for producing an electrically conductive connection, in particular between a contact pin (30, 32) and a cross connection link (34) on battery cells (10) in a battery pack (12). The contact pins (30, 32) are produced from a material A and the cross connection links (34) are produced from a material B, which is different than material A. The contact pins (30) and (32) can also be produced from the material B and the lug-shaped cross connection links (34) can also be produced from material A. Openings (35) or slot-shaped opening geometries (72) are produced in the cross connection link (34). A cohesive connection (52) between the contact pins (30, 32) and the lug-shaped cross connection links (34) is produced by laser welding.

Abstract: A welding system is described as having an energy source, in particular a laser beam source, for implementing a heat transfer for welding a first component to at least one second component in a connection area and having a sensor for detecting the processing radiation of the welding procedure. The sensor includes a measuring probe. Also described is a welding method.

Abstract: In a laser welding method for joining a first workpiece to a second workpiece, the first and the second workpieces are brought into contact with each other in a first method step, an intended welding distortion is ascertained in a second method step, and the first and the second workpieces are welded together in a third method step as a function of the welding distortion.

Abstract: A laser beam machining device includes at least one laser beam source for acting upon at least one workpiece using an annular laser focus. Means are provided for imaging the laser radiation reflected from the workpiece on a sensor unit. A method for adjusting the focal position of an annular laser focus in relation to at least one workpiece is also provided.

Abstract: A laser beam welding device having a laser scanner to displace a laser beam along a specified path in a first direction of motion on at least one workpiece. A driving arrangement is provided for driving the workpieces in a second direction of motion so as to increase the relative speed between the laser beam and the workpiece. A laser beam welding method is also provided.

Abstract: A method for joining at least one first ceramic joining partner with at least one second joining partner includes: depositing at least one preceramic polymer on the first and/or the second joining partner in a joining region, bringing together the joining partners in the joining region, and heating the joining region such that the preceramic polymer transforms into an amorphous and/or crystalline ceramic that connects the joining partners to each other.

Abstract: A method for joining materials by laser radiation is provided. The laser radiation is focused onto a focal area, which is small compared to a working area, and a specifiable intensity distribution is achieved over the working area by moving the focal area across the working area. Also provided is a device for joining materials by laser radiation, a focal area of the laser radiation, which is small compared to a working area, being movable across the working area with the aid of movable optical components, and a disk laser or a fiber laser being provided as the source of radiation. The method and the device may make it possible to set almost any intensity distribution over a working area, thus to achieve a reproducible welding process adapted to the joining task.