Abstract: A switching device for a multi-pole high-voltage vehicle power supply of an electrically operable motor vehicle is provided. The switching device includes at least one first electromechanical switch assigned to a first pole of at least one high-voltage accumulator, and having at least one second electromechanical switch assigned to a second pole of at least one high-voltage accumulator, wherein a first switch and a second switch have a different design and are designed to meet a first defined requirement together, and wherein at least one of the two switch types—here referred to as the first switch—is designed so as meet at least a second defined requirement on its own.

Abstract: The subject of the present invention is a fuel cell system having at least one fuel cell which has an anode, a cathode, and a membrane element. Two electrode chambers are disposed in the fuel cell, and the electrode chambers are an anode chamber and a cathode chamber. An educt flows into the anode chamber and into the cathode chamber by means of a respective incoming stream. According to the invention, it is provided that at least one compensation region is disposed on the end of the membrane element and serves solely to moisten and/or temper at least one of the incoming streams.

Abstract: An electrochemical energy storage device includes at least one cell having at least one cathode, one anode, and one electrolyte which enables a current flow from the anode to the cathode. The electrochemical storage device is connected to a reservoir which contains a cover layer-forming additive.

Abstract: The subject of the present invention relates to a method and a protector for reducing degradation of fuel cell systems at transitions in operation, in particular at electrodes or catalysts in a combustion chamber of a stack of a PEM fuel cell system in startup and shutoff events of the fuel cell system. A switchable material delivery device is provided for varying a delivery of material to the fuel cell system, so that a transition from a first state of the fuel cell system to a second state of the fuel cell system can be initiated, such that a potential difference between different electrodes can be effected. At least one reducing mechanism is provided for reducing the potential difference between the different electrodes during the transition, in which the reducing mechanism includes at least one compensating device for an unequal gas distribution by reducing the proportions causing degradation, to reduce degradation.

Abstract: A fuel cell cooling device has a cooling loop for circulating a coolant fluid. At least during the operation of the fuel cell, an ion extraction medium that is in the liquid state is provided. A method for cleaning a coolant with a corresponding fuel cell cooling device is provided as well.

Abstract: An electrochemical energy store, including at least one electrochemical cell as well as at least one latent heat storage unit, which includes at least one phase change material. The at least one electrochemical cell is a lithium ion accumulator. The exemplary embodiments and/or exemplary methods of the present invention also includes the use of the electrochemical energy store in an electric vehicle or a hybrid vehicle. Furthermore, the exemplary embodiments and/or exemplary methods of the present invention relates to a method for temperature regulation of an electrochemical energy store.

Abstract: The invention relates to a battery module, in particular for a motor vehicle. The battery module has a housing, at least one battery disposed in the housing, and at least one device for dissipating gases or vapors from the at least one battery. According to the invention, the at least one device has at least one element for precipitating at least one toxic and/or environmentally harmful material from the gases or vapors.

Abstract: Proposed are an exhaust gas posttreatment arrangement and a method for the reduction of pollutants, in particular for the selective catalytic reduction of nitrogen oxides. The arrangement has an exhaust line for conducting the exhaust gas of an internal combustion engine to a treatment unit for the reduction of the pollutants, and at least one reservoir for storing a reducing agent for use in the treatment unit. The reservoir is arranged in the region of the exhaust line and extends parallel to the exhaust line, and is in heat-conducting contact with the exhaust line and/or with the exhaust gas in the exhaust line.

Abstract: An electrochemical energy storage device includes at least one cell having at least one cathode, one anode, and one electrolyte which enables a current flow from the anode to the cathode. The electrochemical storage device is connected to a reservoir which contains a cover layer-forming additive.

Abstract: The subject of the present invention is a fuel cell system having at least one fuel cell which has an anode, a cathode, and a membrane element. Two electrode chambers are disposed in the fuel cell, and the electrode chambers are an anode chamber and a cathode chamber. An educt flows into the anode chamber and into the cathode chamber by means of a respective incoming stream. According to the invention, it is provided that at least one compensation region is disposed on the end of the membrane element and serves solely to moisten and/or temper at least one of the incoming streams.

Abstract: A device for generating or storing electrical or mechanical energy is described, having an encapsulation in which at least one element of the device serving to generate or store electrical or mechanical energy, or a fuel tank, is positioned, and having a container for a flame-retardant substance. According to the invention, it is provided that the substance stored in the container releases a flame-retardant component if need be.

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.

Abstract: A method and apparatus are provided for avoiding gaseous impurity inclusions in at least one gas chamber of a fuel cell during an idle period of the fuel cell through the production of a positive pressure in the at least one gas chamber. The method includes the steps producing educts that are supplied to the fuel cell for operation of the fuel cell during an operating mode, supplying the educts to the gas chamber so that the gas chamber is at least partially filled with the educts, and filling the gas chamber to produce a positive pressure in the gas chamber and thereby essentially avoiding gaseous impurity inclusions.

Abstract: The subject of the present invention relates to a method and a protector for reducing degradation of fuel cell systems at transitions in operation, in particular at electrodes or catalysts in a combustion chamber of a stack of a PEM fuel cell system in startup and shutoff events of the fuel cell system. A switchable material delivery device is provided for varying a delivery of material to the fuel cell system, so that a transition from a first state of the fuel cell system to a second state of the fuel cell system can be initiated, such that a potential difference between different electrodes can be effected. At least one reducing mechanism is provided for reducing the potential difference between the different electrodes during the transition, in which the reducing mechanism includes at least one compensating device for an unequal gas distribution by reducing the proportions causing degradation, to reduce degradation.

Abstract: An electrochemical energy store, including at least one electrochemical cell as well as at least one latent heat storage unit, which includes at least one phase change material. The at least one electrochemical cell is a lithium ion accumulator. The exemplary embodiments and/or exemplary methods of the present invention also includes the use of the electrochemical energy store in an electric vehicle or a hybrid vehicle. Furthermore, the exemplary embodiments and/or exemplary methods of the present invention relates to a method for temperature regulation of an electrochemical energy store.

Abstract: A fuel cell cooling device has a cooling loop for circulating a coolant fluid. At least during the operation of the fuel cell, an ion extraction medium that is in the liquid state is provided. A method for cleaning a coolant with a corresponding fuel cell cooling device is provided as well.