Abstract: A method for operating a gas sensor system comprising a gas sensor, in order to provide a concentration variable of a gas concentration of a gas component in a sample gas. The method includes: measuring the gas concentration during a measurement process in order to obtain a temporal evolution of a sensor signal as a function of the gas concentration; determining the concentration variable using a data-based sensor model as a function of the temporal evolution of the sensor signal, the data-based sensor model being trained to take into account a behavior of the sensor outside the measurement process in order to ascertain the concentration variable.

Abstract: An electrolyzer system includes an anticorrosive, conductive material including a first oxide having oxygen vacancies and a formula (Ia): MgTi2O5-? (Ia), where ? is any number between 0 and 3 including a fractional part denoting the oxygen vacancies; and a second oxide having a formula (II): TiaOb (II), where 1<=a<=20 and 1<=b<=30, optionally including a fractional part, the first and second oxides of formulas (Ia) and (II) forming a polycrystalline matrix within the electrolyzer system.

Abstract: The invention relates to a method for producing a flow plate (10a; 10b) for a fuel cell, in particular a PEM fuel cell, and/or an electrolyzer, wherein the flow plate (10a; 10b) is provided with at least one flow element (12a; 12b), which is at least partially made of metal fibers (14a; 14b). According to the invention, in at least one method step, the metal fibers (14a; 14b) are aligned by means of at least one alignment unit (30a; 30b).

Abstract: To provide a method for producing an electrically conductive bond between an electrical line, which includes a plurality of individual conductors, and an electrically conductive component, including producing from a crimp element blank a crimp element enclosing portions of the individual conductors, the crimp element including a continuous side and a discontinuous side, at which edge regions of the crimp element lie opposite one another, and substance-to-substance bonding of the crimp element with a contact surface of the component, which is simple to carry out and nevertheless always results in a robust substance-to-substance bond between the crimp element and the component, it is proposed that the crimp element be produced in such a way that the continuous side of the crimp element includes two bearing surfaces which are spaced from one another, at which the crimp element is substance-to-substance bondable to the contact surface of the component.

Abstract: A separator and/or protective layer for a lithium cell. In order to enable rapid charging of the cell and to extend the service life of the cell, the separator and/or the protective layer encompasses a copolymer and/or a polymer blend, the copolymer encompassing at least one repeating unit for constituting a polymer having a lithium-ion transference number >0.7 and at least one mechanically stabilizing repeating unit, and/or the polymer blend encompassing at least one polymer having a lithium-ion transference number >0.7 and at least one mechanically stabilizing polymer. Cells, and copolymers, polymer blends, and polymer electrolytes on the basis of polymers having a lithium-ion transference number >0.7, are also described.

Abstract: The invention relates to a method for producing a flow plate (10a; 10b) for a fuel cell, in particular a PEM fuel cell, and/or an electrolyzer, wherein the flow plate (10a; 10b) is provided with at least one flow element (12a; 12b), which is at least partially made of metal fibers (14a; 14b). According to the invention, in at least one method step, the metal fibers (14a; 14b) are aligned by means of at least one alignment unit (30a; 30b).

Abstract: A method for manufacturing a solid electrode. To more strongly utilize the intrinsic properties of a porous active material with respect to capacitance and therefore energy density and also rate and high-current capability, in the method, porous active material particles are impregnated using an ion-conducting liquid which contains monomers and/or oligomers in particular and a solid electrode is formed from the impregnated active material particles by adding at least one solid electrolyte. In addition, the invention relates to such solid electrodes and all-solid-state cells.

Abstract: A method for manufacturing a solid electrode. To more strongly utilize the intrinsic properties of a porous active material with respect to capacitance and therefore energy density and also rate and high-current capability, in the method, porous active material particles are impregnated using an ion-conducting liquid which contains monomers and/or oligomers in particular and a solid electrode is formed from the impregnated active material particles by adding at least one solid electrolyte. In addition, the invention relates to such solid electrodes and all-solid-state cells.

Abstract: A battery electrode for battery cells is described, in particular, a cathode, having a contactor for establishing an electrical contact with an electrical conductor and an electrode-active material, the electrode-active material having a surface structuring.

Abstract: An electrode for an electrochemical energy store is provided, the electrode being situated between a wall, for example a separator, and a current collector, including at least one conductive additive and at least one reactant, the electrode having a gradient at which the volume fraction of the conductive additive decreases from the current collector in the direction of the wall. An energy store equipped with the electrode is further provided, as is a method for manufacturing an electrode, and the use of the energy store equipped with the electrode in an electrical device. As a result, optimal utilization of the electrode is achieved, whereby a higher charging or discharging rate may be achieved at a predefined charging and/or discharging capacity, or a higher charging and/or discharging capacity may be achieved at a given charging or discharging rate of the electrode.

Abstract: An electrochemical cell that includes a negative electrode, a positive electrode, a protective layer situated on the negative electrode, which separates the negative electrode from the positive electrode, and an electrolyte, the negative electrode at least partially including metallic lithium, and the protective layer situated on the negative electrode being formed of a composite material, including at least one first material and one second material. Also described is a corresponding method for manufacturing an electrochemical cell.

Abstract: To provide a method for producing an electrically conductive bond between an electrical line, which includes a plurality of individual conductors, and an electrically conductive component, including producing from a crimp element blank a crimp element enclosing portions of the individual conductors, the crimp element including a continuous side and a discontinuous side, at which edge regions of the crimp element lie opposite one another, and substance-to-substance bonding of the crimp element with a contact surface of the component, which is simple to carry out and nevertheless always results in a robust substance-to-substance bond between the crimp element and the component, it is proposed that the crimp element be produced in such a way that the continuous side of the crimp element includes two bearing surfaces which are spaced from one another, at which the crimp element is substance-to-substance bondable to the contact surface of the component.

Abstract: The invention relates to a battery module, in particular for a motor vehicle, which includes a housing, at least one battery disposed in the housing, at least one inlet opening for introducing a tempering fluid into the housing, at least one outlet opening for discharging the tempering fluid from the housing, and at least one monitoring device for detecting a state of the at least one battery. According to the invention, the at least one inlet opening and the at least one outlet opening can be sealed by at least one closure element in the event of a disruption condition of the at least one battery, so that materials exiting the at least one battery, in particular gases, during the disruption state can not escape from the battery module.

Abstract: The present invention relates to a energy converter ad/or energy storage device, including one or more energy converter and/or energy storage units, such as fuel cells and/or battery units. The energy converter and/or energy storage units according to the invention are surrounded by a casing which has at least one fluorine absorber, in particular a hydrogen fluoride absorber, selected from the group including carbonates, hydroxides, oxides, chlorides, bromides, iodides, sulfates, and/or phosphates of alkali metals, alkaline earth metals, lanthanoides, and/or silicon.