Abstract: A method for manufacturing a battery component includes unrolling a polymer foil from a roll; forming windows into the unrolled polymer foil; and placing a battery cell component over each window. The battery cell component advantageously can be a solid-state electrolyte functioning as a separator, which is thereby well protected for handling and in later use.

Abstract: A battery component includes a polymer frame having at least one window, the polymer frame having a first planar side and an opposite second planar side, and a window edge between the first and second planar sides. The battery component also has a battery cell component having a separator and bipolar current collector, the battery cell component being attached to the frame, the separator or bipolar current collector being attached to the first planar side or the window edge. A battery stack, a method for handling the battery component as an individual unit are also provided, electric vehicle battery and electric vehicle are also provided.

Abstract: A method for reducing cell degradation in a fuel cell system includes adding oxygen-containing gas to a fuel in the anode chamber to prevent an increase in a cell voltage above a predetermined maximum value.

Abstract: In order to provide a method for producing a composite of a bipolar plate and an MEA, the following is proposed: arranging the bipolar plate in a tool, which has a ferromagnetic or magnetic element, which partially forms the contact surface for the bipolar plate and is designed to be removable from the tool, arranging a membrane electrode assembly on the bipolar plate, arranging a second ferromagnetic or magnetic element on the membrane electrode assembly, removing the membrane electrode assembly and bipolar plate fixed to one another by the two ferromagnetic or magnetic elements, inserting the bipolar plate fixed to the membrane electrode assembly into a second tool, injecting a melt of a polymeric sealing material into the at least one mold cavity of the tool, allowing the melt to solidify, and demolding and removing the composite or the composites. In addition, a composite and a fuel cell stack are disclosed.

Abstract: A measurement system for an electrical machine includes a position sensor device arranged on a rotor of the electrical machine, a carrier connected to the position sensor device, and a temperature sensor device fastened to the carrier. The position sensor device is configured to ascertain an item of information about an orientation of the rotor. The temperature sensor is configured to ascertain a temperature of a stator of the electrical machine.

Abstract: A method for producing a noble metal-free catalyst comprises providing a catalyst support comprising organic heterocycles as catalyst, and applying an oxidation-inhibiting protective layer. Embodiments further relate to a noble metal-free catalyst, a fuel cell, and a motor vehicle.

Abstract: The disclosure relates to a method for operating a fuel cell system and a correspondingly configured fuel cell system, comprising a fuel cell stack, an anode supply with a hydrogen reservoir, an anode supply path connecting the hydrogen reservoir to the fuel cell stack, a recirculation path connecting a fuel cell outlet to the anode supply path, and a conveying device for conveying recirculated anode exhaust gas. The method provides for a tank mass flow supplied from the hydrogen reservoir to the anode circuit to be determined by balancing the material flows supplied to and discharged from the anode circuit, wherein the tank mass flow enters the balancing as a material flow supplied to the anode circuit.

Abstract: A diagnostic system for determining the cathode gas quality of a fuel cell system has a fuel cell stack, with a diagnostic fuel cell which can be connected at the cathode side to a cathode supply line and at the anode side to an anode supply line of the fuel cell system. The diagnostic system furthermore comprises a detection unit which is configured to detect a measured value or the measured value time curve of the diagnostic fuel cell operating with the cathode gas provided via the cathode supply line and with the anode gas provided via the anode supply line. The present disclosure moreover relates to a fuel cell system having a diagnostic system, and to a corresponding method.

Abstract: The invention relates to a bipolar plate (15) for a fuel cell stack (10) comprising a first sealing section (157) on its side (151) as well as a second sealing section (158) on its second side. The sealing sections are designed to sealingly interact in a fuel cell stack (10) with an elastic seal element (16). It is provided that the first and second sealing sections of the bipolar plate (15) are designed asymmetrically in that at least one sealing projection (1571) is formed in the first sealing section (157), and the second sealing section (158) is formed without a sealing projection and/or is substantially flat. When such bipolar plates (15) alternatingly interact with seal elements (6) that are designed flat in a fuel-cell stack (10), an effective stack seal can be achieved with low required contact pressure.

Abstract: A method for acquiring information in the spatial environment of a vehicle, comprising: providing at least two radar sensors arranged at different positions at the vehicle; transmitting radar signals by the radar sensors, the radar signals being assigned to the radar sensors; receiving reflected components of the radar signals assigned to the radar sensors at the respective radar sensors and further processing these reflected components of the radar signals as reception information; assigning time information to the reception information obtained from the respective radar sensors, the time information forming a time reference for the reception information; assigning location information to the reception information obtained from the respective radar sensors, the location information forming a location reference for the reception information; and processing the reception information obtained from the at least two radar sensors into common environment information by taking into account the time information and

Abstract: A separator for an electric battery includes a first solid electrolyte layer; a plastic separator film impregnated with a liquid or gel electrolyte; and a second solid electrolyte layer, the first and second electrolyte layers sealing the liquid or gel electrolyte in the plastic separator. Also disclosed is a separator where first and second electrolyte layers sealing a plastic separator film and have a porosity less than 5%. A method for manufacturing a separator, an electric battery and a vehicle are also provided.

Abstract: A fuel cell stack is provided comprising a plurality of fuel cells comprising a membrane electrode assembly and at least one gas diffusion layer, which fuel cells are divided into at least one first fuel cell segment having a portion of the plurality of fuel cells and a second fuel cell segment having a different portion of the plurality of fuel cells, wherein the first fuel cell segment and the second fuel cell segment are arranged in a common fuel cell cascade, wherein the first fuel cell segment comprises a first collector inlet line for an operating medium and a first collector outlet lined which is formed integrally with a second collector inlet line of the second fuel cell segment and wherein the second fuel cell segment comprises a second collector outlet line. The membrane electrode assemblies and/or the gas diffusion layers inside the second fuel cell segment are designed in such a way that they are more water-repellent than those of the first fuel cell segment.

Abstract: An ejector with a suction nozzle is disclosed, with a drive nozzle and with a mixing tube, to which is assigned an adjustment device for the at least region-wise adjustment of a flow cross-section of the mixing tube. Inside the drive nozzle, an axially movable needle which is designed to adjust a flow cross-section of the drive nozzle is arranged and a coupling mechanism is provided which connects the adjustment device to the needle or to an actuator actuating the needle in such a way that the adjustment device adjusts or changes the flow cross-section of the mixing tube as a function of an axial needle movement. A fuel cell system with such an ejector is also disclosed.

Abstract: The invention relates to a bipolar plate for a fuel cell, comprising an anode plate with anode gas channels and a cathode plate with cathode gas channels, said plates having an active region and supply regions and being arranged one over the other such that the gas channels form coolant channels. The aim of the invention is to improve such a bipolar plate such that the flow conditions of reactants and coolant in the bipolar plate are optimized. This is achieved in that the height and/or the width of the cathode gas channels increase(s) from a first side of the active region to a second side of the active region, and the height and/or the width of the anode gas channels decrease(s) from the first side of the active region to the second side of the active region, wherein the cross-sectional area and/or the hydraulic diameter of the cathode gas channels increases, and the cross-sectional area and/or the hydraulic diameter of the anode gas channels decreases.

Abstract: A bipolar plate seal assembly for a fuel cell is provided. The bipolar plate seal assembly includes: a bipolar plate having a flow field for a reactant medium on at least one of its main sides, and a supply area arranged adjacent to the flow field, in which supply ports for feeding and discharging the reactant medium and optionally for feeding and discharging a coolant are arranged; and at least one seal assembly having an electrically insulating layer covering at least one or more sections of the supply area of the bipolar plate and having recesses that correspond to the supply ports of the bipolar plate, and for each recess, a seal circumferential thereto.

Abstract: A bipolar plate for a fuel cell having two profiled separator plates with channels for reaction gases and coolant, wherein the channels for a reaction gas or both reaction gases have a smaller width in an inlet region of the active region than in the remaining sub-region of the active region, wherein the width thereof continuously increases from the beginning to the end of the inlet region. Supports between the channels have a greater width than in the remaining sub-region of the active region, wherein the sum of the width of the channels and the width of the supports is constant, and the width of the channels and the supports is constant in the entire remaining sub-region.

Abstract: In a method for displaying items of information in a transportation device, the items of information are displayed in the form of hierarchical menu structures. A device for displaying items of information includes a control unit and a display unit for the stereoscopic and/or autostereoscopic display of items of information. In the method, the display is implemented stereoscopically, at least two different menus or menu items being displayed to the viewer at different distances. The instrument cluster includes the placement of a mask in front of the display of a display unit, the mask modifying the light emission of the light emitted by the display so as to result in a display of autostereoscopic images.