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551
resultados
Última actualización
03/05/2025 [06:49:00]
Resultados 50 a 75 de 551
Resumen de: WO2025087881A1
The invention is based on a method for operating a fuel cell system (10), wherein a temperature of a fuel cell unit (12) of the fuel cell system (10) is regulated by means of an air feed rate in one method step. It is proposed that the air feed rate in at least one operating state is determined at least depending on a rate of change of a target temperature value (22) of the fuel cell unit (12).
Resumen de: WO2025088169A1
The invention relates to a method for manufacturing a solid oxide electrochemical reactor, the method comprising the following steps: - producing a plurality of distinct peripheral strips (26); - making joining through-openings in each peripheral strip (26); - forming an electrically insulating support by assembling, onto a first interconnection plate (6), a plurality of the peripheral strips (26); - producing an alternating stack of electrochemical cells (5) and interconnection plates (6); - pressing the alternating stack in the stacking direction and raising its temperature to the melting point of a fusible joint, such that the fusible joint extends into the joining through-openings of the electrically insulating support, and forms a seal that connects two interconnection plates (6) through these joining through-openings.
Resumen de: WO2025088170A1
The invention relates to a method for manufacturing a solid oxide electrochemical reactor, the method comprising the following steps: - producing an electrically insulating support (1) with through-openings (2) made therethrough; - depositing a first fusible joint bed (20) on an interconnection plate (6) and arranging the electrically insulating support (1) thereon; - depositing a fusible joint interstitial bead (21) in the through-openings (2); - arranging, on the electrically insulating support (1), a second fusible joint bed (22); - producing and pressing an alternating stack and raising the temperature thereof to the melting point of the fusible joint so as to fuse the first fusible joint bed (20), the fusible joint interstitial bead (21) and the second fusible joint bed (22), wherein the fusible joint forms a seal that extends into the through-openings (2) in the electrically insulating support (1) and connects two interconnection plates (6) through the through-openings (2).
Resumen de: WO2025088164A1
The invention relates to a method for manufacturing a solid oxide electrochemical reactor, the method comprising the following steps: - producing an electrically insulating support (1) through which through-openings (2) extend; - depositing at least one fusible joint bead (15) on an element selected from the group consisting of the interconnection plates (6) and the electrically insulating support (1); - carrying out an operation of curing the fusible joint bead (15); compressing the fusible joint bead (15) in the direction of stacking, and plastically deforming it; - pressing an alternating stack and raising the temperature thereof to the melting point of the fusible joint bead (15), such that the fusible joint bead (15) extends into the through-openings (2) in the electrically insulating support (1) and forms a seal connecting two interconnection plates (6) through these through-openings (2).
Resumen de: WO2025087734A1
The invention relates to a device (103) for checking a fuel concentration sensor (323) which is designed to ascertain an estimated value of the concentration of fuel (211) in a gas mixture (403). For a measuring process for ascertaining an estimated value of the fuel concentration, the device (103) is designed to: produce a supply or removal of a target quantity of thermal energy (402, 412) to or from the gas mixture (403); ascertain a measuring process temperature measurement value of the gas mixture (403), using a temperature sensor (404) of the fuel concentration sensor (323), as a result of the supply or removal of the target quantity of thermal energy (402, 412); and ascertain the estimated value of the fuel concentration on the basis of the measuring process temperature measurement value. Additionally, for a testing process for testing the fuel concentration sensor (323), the device (103) is designed to: produce a supply or removal of a test quantity of thermal energy (402, 412) to or from the gas mixture (403), said test quantity deviating from the target quantity of thermal energy (402, 412); ascertain a test process temperature measurement value of the gas mixture (403), using the temperature sensor (404), as a result of the supply or removal of the test quantity of thermal energy (402, 412); and detect an impairment of the fuel concentration sensor (323) on the basis of the test process temperature measurement value of the gas mixture (403).
Resumen de: WO2025087910A1
The invention relates to an electrochemical device (1) comprising: - at least one, preferably a plurality of, electrochemical cell (4) comprising a fuel electrode an oxygen electrode and a membrane, - at least one fluid inlet line (2) leading to the fuel electrode of the at least one electrochemical cell (4), - at least one fluid outlet line (3), exiting the fuel electrode of the at least one electrochemical cell (4), - at least a first co-fluid line leading to the oxygen electrode of the at least one electrochemical cell, - a reformer with an integrated heat exchanger (5) located upstream to the at least one electrochemical cell (4), - at least one hot stream line (6) to provide heat to the fluid inlet line (2), - at least two temperature sensors (T) for detecting the inlet temperature of the at least one fluid and/or for detecting the at least one outlet temperature of the at least one fluid, preferably at a reformer inlet side and/or a reformer outlet side. A first pre-heater (7) is arranged between the reformer (5) and the at least one electrochemical cell (4). The fluid inlet line (2) is in fluid communication with the reformer (5) and/or first preheater (7) and the hot stream line (6) is in fluid communication with reformer (5) and/or the first preheater (7).
Resumen de: WO2025087865A1
The present invention relates to a guard bed reactor for silicon removal, a solid oxide electrode system for producing hydrogen comprising a guard bed reactor for silicon removal, a method of operating the system to produce hydrogen and a use of the guard bed reactor for silicon removal for depleting a stream of steam from volatile silica species.
Resumen de: WO2025087615A1
The invention relates to a method for producing components (5, 6, 7, 8, 9, 10, 30, 51, 64, 65) for an electrochemical cell unit (53) for converting electrochemical energy into electrical energy as a fuel cell unit (1) and/or for converting electrical energy into electrochemical energy as an electrolytic cell unit (49), comprising the steps of: providing blanks (82), introducing the blanks (82) into first stamping tools (86) and/or second stamping tools (87), carrying out a change process in the form of deformation of the blanks (82) to create the components (5, 6, 7, 8, 9, 10, 30, 51, 64, 65) while the blanks (82) are disposed between the first and second stamping tools (86, 87), removing the shaped components (5, 6, 7, 8, 9, 10, 30, 51, 64, 65) from the first stamping tools (86) and from the second stamping tools (87), wherein the change process in the form of deformation of the blanks (82) to create the components (5, 6, 7, 8, 9, 10, 30, 51, 64, 65) while the blanks (82) are disposed between the first and second stamping tools (86, 87) is carried out by means of at least one press (75).
Resumen de: WO2025087597A1
The invention relates to a gas diffusion layer (100) for a fuel cell (101, 303), said gas diffusion layer (100) comprising: - a main part (103, 201, 207), and - a hydrophobic layer (105), wherein the hydrophobic layer (105) overlaps solely with parts of the surface of the main part (103, 201, 207), and one part of the surface of the main part (103, 201, 207) is not overlapped by the hydrophobic layer (105).
Resumen de: WO2025087598A1
The present invention relates to a cell stack (100) for an electrochemical energy converter (300), wherein the cell stack (100) comprises a plurality of cells (101) and a cover (103), wherein the cover (103) comprises a number of electrically insulating films, wherein the cover (103) comes into direct contact with respective cells (101) of the plurality of cells (101), and wherein the cover (103) shields the cell stack (101) in a fluid-tight manner with respect to surroundings.
Resumen de: WO2025087586A1
The invention relates to a cell (1) for electrolysis, at least having: a layer sequence consisting of a bipolar plate (BPP), at least one cathodic gas diffusion layer (PTLC), a proton exchange membrane (PEM) between catalyst layers (CLC, CLA) or catalyst-coated membrane (CCM), at least one anodic gas diffusion layer (PTLA), which are arranged in a frame (4), wherein there is an integral bond (Con) between the individual layers of at least the BPP, PTLAC(s) and/or PTLBC(s).
Resumen de: WO2025087498A1
The invention relates to a process for manufacturing an electrochemical cell (10), comprising a membrane electrode assembly or catalyst coated membrane (1), abbreviated MEA/CCM (1), forming a cathode (2) on the one side and an anode (3) on the other side, a porous transport layer or gas diffusion layer (4, 5), abbreviated PTL/GDL (4, 5), on either side of the MEA/CCM (1) and a frame member (6, 7) on either side of the MEA/CCM (1) enclosing the respective PTL/GDL (4, 5). According to the present invention, at least one PTL/GDL (4, 5) is inserted into the respective frame member (6, 7) under a preload during assembly. The invention further relates to an electrochemical cell (10) and an electrochemical cell stack.
Resumen de: US2025135920A1
A high voltage power management module for supplying power to one or more motors for driving a fuel cell electric vehicle. The high voltage power management module comprises an E-Machine interface subsystem for exchanging DC power with an inverter configured to provide AC power to one or more motors for driving a drivetrain of the vehicle. The high voltage power management module further comprises a storage interface subsystem to exchange DC power with an electrical energy store for providing transient power to drive the fuel cell electric vehicle. The high voltage power management module further comprises a fuel cell interface subsystem for receiving DC power from a fuel cell stack of the vehicle configured to directly drive the one or more motors through the E-Machine interface subsystem of the high voltage power management module.
Resumen de: US2025135958A1
A railway vehicle including: a propulsion module, a fuel cell power module, a cooling cycle including at least one heat exchanger for receiving a stream of heated refrigerant from the fuel cell power module and a stream of cooling air, and for producing a stream of cooled refrigerant and a stream of heated air, the fuel cell power module being adapted for receiving the stream of cooled refrigerant and producing the stream of heated refrigerant, a reservoir for collecting residual water from the fuel cell power module, a precooling system for receiving a stream of water from the reservoir and a stream of air and for evaporating part of the stream of water in the stream of air in order to obtain the stream of cooling air.
Resumen de: US2025135869A1
The invention relates to a vehicle (10), comprising an electrochemical cell (1) and a first coolant circuit (2.1) for cooling said electrochemical cell (1). Furthermore, the vehicle (10) has a second coolant circuit (2.2), fluidically separated from the first coolant circuit (2.1), which is thermally coupled to the first coolant circuit (2.1) via an exchange heat exchanger (WA). The first coolant circuit (2.1) comprises a first heat exchanger (W1) for heat exchange with the vehicle surroundings, and the second coolant circuit (2.2) comprises a second heat exchanger (W2) for heat exchange with the vehicle surroundings, wherein the first heat exchanger (W1), seen in the forward direction of travel (V) of the vehicle (10), is arranged in front of the second heat exchanger (W2). The invention furthermore relates to a method for operating such a vehicle (10).
Resumen de: US2025135397A1
Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.
Resumen de: US2025134436A1
A bioelectrode having a textile form, and which is flexible, highly versatile, excellent in fastness, and curbs lowering in conductivity due to washing is described along with a method for manufacturing the same, where the bioelectrode has a multilayer structure of a conductor and a fiber base material composed of non-conductive fibers, in which the conductor contains carbon black and a polyurethane resin, the carbon black being dispersed in a particulate form at least on a surface of the conductor, where a ratio of a longest distance to a shortest distance between particles of the carbon black and adjacent particles of the carbon black (longest distance/shortest distance) is 1 to 20 on the surface of the conductor, and the surface of the conductor has a wet rubbing fastness of grade 4 or higher.
Resumen de: US2025136081A1
The disclosure relates in general to a method for operating a hybrid vehicle and to a hybrid vehicle which has a fuel cell and an energy store. A state-of-charge of the energy store of the hybrid vehicle is monitored when the hybrid vehicle is at a standstill. The fuel cell is operated when the hybrid vehicle is at a standstill to charge the energy store, responsive to the state-of-charge of the energy store falling below a first state-of-charge threshold value. Waste heat is generated by the operation of the fuel cell. A vehicle interior of the hybrid vehicle and/or a luggage compartment of the hybrid vehicle is heated using the generated waste heat and/or using an electric heating element for which a first supply current from the energy store is provided.
Resumen de: US2025135921A1
Some embodiments include an appliance energy source supply system for an energy source supply appliance. The appliance energy source supply system can comprise a first thermal control device and a second thermal control device. The appliance energy source supply system can be configured so that a fuel energy source is received by one of the first thermal control device or the second thermal control device before the fuel energy source is made available to a receiver vehicle. Other embodiments of related systems, devices, and methods also are provided.
Resumen de: WO2025089926A1
One embodiment of the present invention uses an electrolyte having improved material structural stability at a high temperature without an unnecessary change in enthalpy to solve the problem of low sinterability of conventional high-entropy perovskite oxide material-based electrolytes, and can provide a bi-directional proton-conductive fuel cell having improved proton conductivity and electrochemical performance by using said electrolyte.
Resumen de: US2025135935A1
A charging system includes a work machine. The work machine includes a battery system. The charging system also includes a transport vehicle adapted to transport the work machine. The work machine is positioned on the transport vehicle for transportation thereof. The transport vehicle includes a fuel cell system. The fuel cell system of the transport vehicle provides operating power to the transport vehicle for propelling the transport vehicle. The fuel cell system further provides an electric power supply to the battery system of the work machine for charging the battery system.
Resumen de: US2025140880A1
A coolant reservoir includes an ion filter, the coolant reservoir includes a main body in which a coolant to cool a fuel cell stack is stored, and the ion filter configured to be selectively connected to a coolant line, through which the coolant flows, to remove ions contained in the coolant when a measured insulation resistance value of a fuel cell system changes.
Resumen de: US2025140877A1
A fuel cell system, e.g., of a motor vehicle, includes a fuel cell stack having fuel cells and non-repeating hardware components, the latter including wet and dry end units. The cells are positioned between the end units. The dry end unit includes an end plate and a compression plate assembly that uniformly compresses the cells against the end plate, and a terminal plate surrounded by a seal plate. An insulator frame disposed adjacent to the compression plate assembly is engaged with the insulator frame via a frictional interface provided by o-ring compression seals having a respective post connected to the terminal plate and the seal plate, and a pocket connected to the insulator frame. The post and pocket of at least one of the compression seals together define a fluid passage. One or more shim plates may be disposed between the end plate and insulator frame.
Resumen de: US2025140878A1
An embodiment unit cell for a fuel cell includes an anode separator, a cathode separator, a frame disposed between the anode separator and the cathode separator, a membrane electrode assembly, and a pair of gas diffusion layers coupled to first and second sides of the membrane electrode assembly, respectively. The frame includes a plurality of films laminated together, a through hole disposed in a central portion of the frame, a manifold hole disposed in an edge portion of the frame, wherein the manifold hole is configured to allow a fluid to flow therethrough, and a slit disposed in a first plurality of the plurality of films, the slit extending from the manifold hole toward the through hole and cut to define a fluid flow path, wherein the membrane electrode assembly and the pair of gas diffusion layers are disposed in the through hole in the frame.
Nº publicación: US2025140873A1 01/05/2025
Solicitante:
HYUNDAI MOTOR COMPANY [KR]
KIA CORP [KR]
HYUNDAI MOTOR COMPANY,
KIA CORPORATION
Resumen de: US2025140873A1
The present disclosure relates to a gas diffusion layer structure for a unit cell of a fuel cell, the gas diffusion layer structure includes a gas diffusion layer disposed between a catalyst layer and a separator of the unit cell of the fuel cell, in which the gas diffusion layer includes a microporous layer positioned adjacent to the catalyst layer, and a base layer positioned between the microporous layer and the separator, in which the base layer includes: a microporous layer adjacent region disposed adjacent to the microporous layer, and a gas channel adjacent region disposed adjacent to the separator, and in which the gas diffusion layer is pressed so that a solid volume fraction of the gas channel adjacent region and the microporous layer adjacent region increases to a target solid volume fraction.
BOPI
Sede Electrónica
