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557
results.
Updated on
17/09/2025 [06:50:00]
Results 400 to 425 of 557
Absstract of: DE102024106199A1
Eine Steckverbindung für ein System zur Zellspannungsüberwachung einer Brennstoffzelle weist zumindest einen Stecker (3) und zumindest eine Buchse (1) auf, wobei die Buchse (1) in einem Randbereich einer Bipolarplatte (10) einer Brennstoffzelle ausgebildet und eingerichtet ist, mit dem Stecker (3) zur Herstellung einer elektrischen Verbindung zusammenzuwirken. Der Stecker (3) weist zumindest zwei Steckerelemente (4) und die Buchse (1) zumindest zwei Steckplätze (2) für jeweils eines der Steckerelemente (4) auf, wobei die zumindest zwei Steckerelemente (4) in dem Stecker (3) relativ zueinander an einer jeweiligen Steckerposition fest angeordnet sind.
Absstract of: DE102024201967A1
Die Erfindung betrifft eine Lageranordnung (1), aufweisend eine Achse (3) zur drehfesten Anordnung in einem Gehäuseelement (2), einen Rotationskörper (4) zur Drehung um die Achse (3), und eine Lagereinheit (10) zur rotatorischen Lagerung des Rotationskörpers (4) an der Achse (3) mit zumindest einem Lagerinnenring (11) zur Montage auf der Achse (3) und zumindest einem Lageraußenring (12), der drehfest mit dem Rotationskörper (4) verbunden ist. Ferner betrifft die Erfindung ein Brennstoffzellensystem (5).
Absstract of: WO2025182638A1
The present invention provides a membrane electrode assembly which has improved cell characteristics over a long period of time. The membrane electrode assembly comprises a cathode gas diffusion layer, a cathode catalyst layer, a solid polymer electrolyte membrane, an anode catalyst layer, and an anode gas diffusion layer. The cathode catalyst layer comprises catalyst particles that contain platinum. At least one among the cathode gas diffusion layer, the anode catalyst layer, and the anode gas diffusion layer contains at least one melamine-based compound that is a compound represented by chemical formula (1), a salt of the compound, or a polymer of the compound. In chemical formula (1), R1 to R3 are each independently an amino group, an alkyl group, an alkylamino group, a thioalkylamino group, or an alkylaminosulfonic acid group.
Absstract of: WO2025182489A1
This hydrogen generation device (100) comprises: a heating unit (120); an evaporation unit (121) that heats water and raw material gas by heat from the heating unit (120); a reforming unit (122) that has a reforming catalyst and generates reformed gas containing hydrogen by reacting steam and the raw material gas from the evaporation unit (121); and a CO reduction unit (123) that has a CO reduction catalyst and reduces the concentration of carbon monoxide contained in the reformed gas. In the catalyst reduction step, reducing gas is supplied to the evaporation unit (121) to cause the reducing gas heated by heat from the heating unit (120) to flow to the reforming unit (122) and the CO reduction unit (123) (step S1), and water is supplied to the evaporation unit (121) to cause steam generated from water by heat from the heating unit (120) to flow to the reforming unit (122) and the CO reduction unit (123) (step S3).
Absstract of: WO2025183381A1
A separator for an electrochemical device includes a fluid inlet; a fluid outlet; a plurality of serpentine-type flow paths disposed between the fluid inlet and the fluid outlet; and an auxiliary flow path extending in a first direction and connected to inlets and outlets of the plurality of serpentine-type flow paths, the first direction being a direction from the fluid inlet toward the fluid outlet. The plurality of serpentine-type flow paths include a first serpentine-type flow path and a second serpentine-type flow path, and an inlet and an outlet of the second serpentine-type flow path are disposed closer to the fluid outlet in the first direction, compared to an inlet and an outlet of the first serpentine-type flow path.
Absstract of: WO2025183274A1
The present invention relates to a membrane-electrode assembly and a fuel cell including same. The membrane-electrode assembly has, by means of elongation, surface roughness only on the surface of a catalyst layer, such that interfacial bonding strength is increased by the surface roughness, the degree of contraction or expansion during cell operation is reduced such that durability may be improved, and furthermore, porosity is improved such that mass transfer and cell performance may also be improved.
Absstract of: WO2025180008A1
The present invention belongs to the technical field of electrochemistry. Disclosed is an electrochemical device. The electrochemical device comprises an electrochemical stack and a first hydrogen generating device, wherein the electrochemical stack has a first reaction zone inlet, a first reaction zone and a first reaction zone outlet, and the first reaction zone inlet and the first reaction zone outlet are in communication with the first reaction zone; the first reaction zone inlet of the electrochemical stack is connected to an outlet of the first hydrogen generating device; and the first hydrogen generating device is filled with a first hydrogen generating material. In the present invention, the first hydrogen generating material filling the first hydrogen generating device is used to react with water vapor to consume the water vapor, and at the same time, hydrogen produced by the reaction enters the electrochemical stack to serve as a protective gas that can protect a catalyst in the electrochemical stack; and the oxidized first hydrogen generating material can be reduced by means of a reductive fluid, such that the first hydrogen generating material can be recycled, thereby achieving a long service life and low cost.
Absstract of: WO2025179718A1
The present invention belongs to the technical field of energy control, and particularly relates to a PID control method and system for a microbial fuel cell. The method comprises: acquiring parameters of a microbial fuel cell; on the basis of the acquired parameters, constructing a PID controller for the microbial fuel cell; and on the basis of time delay estimation and an input of the controller constructed by means of PID control, controlling the dilution rate of the microbial fuel cell, and optimizing a parameter of the constructed PID controller by using an improved ant colony algorithm, so as to obtain the maximum output voltage of the microbial fuel cell, such that the PID control over the microbial fuel cell is completed.
Absstract of: CN120077497A
A hydrogen-producing fuel cell system and a method of operating the system. The method includes initiating supply of a stored hydrogen stream including stored hydrogen to a fuel cell stack. Prior to the initiation, the stored hydrogen is stored in a low pressure hydrogen storage tank at a hydrogen storage pressure. The method also includes utilizing the fuel cell stack to generate a power output from the stored hydrogen. The method further includes monitoring a hydrogen supply variable during a supply time interval following the initiation, which indicates a flow rate of the stored hydrogen stream to the fuel cell stack. The method also includes detecting a change in the hydrogen supply variable, and responding to the detection. The system includes a controller programmed to perform the method.
Absstract of: US2025276265A1
A gas filter system has an outer filter element with a first end plate, a second end plate, and a first filter medium arranged between the first and the second end plates. An inner filter element with a third end plate, a fourth end plate, and a second filter medium arranged between the third and the fourth end plates is provided. The first end plate and the third end plate each have an opening. The first end plate surrounds the third end plate. The first end plate has a first seal protrusion protruding in an axial direction of the gas filter system. The third end plate has a second seal protrusion protruding in the axial direction of the gas filter system. For sealing the third end plate and the first end plate relative to each other, the first seal protrusion and the second seal protrusion engage each other.
Absstract of: US2025277871A1
Disclosed herein are methods and systems for monitoring and estimating the state of health (SOH) of a fuel cell. The state of health of a cell can be estimated through determining the loss of electrochemical active surface area (ECSA) of the cathode catalyst. The method includes providing an external step excitation to a cell, recording the fuel cell response to the external step excitation, and determining an analytical expression of the recorded fuel cell response. Once the analytical expression is determined, at least one parameter of the analytical expression is compared to its beginning of life (BoL) value of that parameter to determine ECSA loss.
Absstract of: US2025277430A1
Provided are methods and systems to generate power from hydrogen in a hybrid hydrogen power generation system including two or more different hydrogen power generation systems. In some examples, electricity may be generated to power oilfield equipment by hydrogen fuel cells and/or by solid oxide fuel cells. Electricity may also be generated to recharge an energy storage for future electricity use. Hydrogen may also be injected directly into an internal combustion engine powering oilfield equipment such as a turbine and/or a reciprocating engine to lower hydrocarbon-based fuel consumption.
Absstract of: US2025277319A1
An electrochemical stack includes a water passage member interposed between two electrochemical cells among a plurality of electrochemical cells, the two electrochemical cells being located in a central region in a stacking direction of the electrochemical cells. The water passage member is provided with a water introduction unit and a flow path. The water introduction unit introduces water supplied from the outside. The flow path allows water introduced from the water introduction unit to flow along the electrochemical cells and guides the water to a water introducing communication passage penetrating the plurality of electrochemical cells in the stacking direction of the electrochemical cells.
Absstract of: US2025276903A1
Process for producing syngas comprising the steps of:a) burning methane or natural gas with oxygen and optionally with water steam for producing flue gas comprising CO2 and H2O according to the following reaction:CH4+2O2→CO2+2H2O1b) cooling the flue gas coming from a) by heat exchange with a water stream which is thereby vapourised;c) condensing and removing water from the flue gas, coming from step b), thereby obtaining a mixture consisting essentially of CO2;d) carrying out an electrolysis of a steam stream in a solid oxide electrolytic cell (SOEC), whereby steam is split into oxygen gas and hydrogen gas according to the following reaction scheme:H2O(g)→H2+1/2O22e) separating and drying hydrogen gasf) carrying out a reverse water gas shift reaction between CO2 coming from step c) with H2 coming from step e) according to the following scheme:CO2+H2→CO+H2O.3
Absstract of: US2025279453A1
The present disclosure relates to a composite electrolyte membrane and a method of manufacturing the same. A catalyst composite layer in the composite electrolyte membrane uniformly includes a catalyst and an antioxidant, whereby it is possible to inhibit generation of hydrogen peroxide by side reaction. In addition, the catalyst composite layer is formed as a separate layer, whereby the catalyst composite layer is instead degraded, greatly inhibiting membrane degradation even in the case in which radicals attack an ionomer due to small side reaction. Furthermore, it is possible to control the position of the catalyst composite layer including the catalyst and the antioxidant by adjusting the thicknesses of a second ion exchange layer and the catalyst composite layer, whereby it is possible to protect a specific degradation position, and therefore it is possible to efficiently improve membrane durability.
Absstract of: US2025279452A1
The invention relates to a method for humidifying air in a supply air path (2) of a fuel cell system (1) by means of water injection, wherein product water produced on the cathode side is used, with said product water being separated from the humid exhaust air introduced into the exhaust air path (3) with the aid of a water separator (4) integrated into the exhaust air path (3), wherein, depending on the load, the liquid water content of the exhaust air is varied by means of the temperature of the exhaust air.The invention also relates to a device for humidifying air in a supply air path (2) of a fuel cell system (1) and to a fuel cell system (1) comprising a device according to the invention.
Absstract of: US2025279446A1
A method for implementing an ammonia-burning fuel-cell system, which comprises: a) operating a fuel-cell unit; b) recovering a dinitrogen-and dihydrogen-rich anode gas stream; c) cooling the anode gas stream and condensing the water present in the gaseous anode stream to form a cooled gaseous anode stream; d) separating the cooled gaseous anode stream into a dinitrogen gas stream; and a dinitrogen-depleted anode stream; and e) injecting the dinitrogen-depleted anode stream; into the fuel cell unit so as to recycle the dinitrogen-depleted anode stream in the fuel cell unit.
Absstract of: US2025279456A1
A connector device for a fuel cell stack is provided. Furthermore, a fuel cell stack is provided, comprising at least one such connector device. The connector device includes a scissor lifting mechanism having at least two mechanically coupled pairs of scissor elements and at least three contact modules arranged equidistantly from one another on the scissor lifting mechanism, wherein each contact module is set up and arranged to be electrically coupled to an electrically conductive element of the fuel cell stack.
Absstract of: US2025279443A1
A system comprising: a gas turbine having a combustion chamber and a turbine; a first heat exchanger configured to receive a first stream of compressed air and a stream of liquid hydrogen, wherein the first heat exchanger is configured to transfer heat between the first stream of compressed air and the stream of liquid hydrogen to yield a stream of liquid oxygen and a stream of gaseous hydrogen; a second heat exchanger configured to heat the stream of liquid oxygen to yield a stream of gaseous oxygen; and a third heat exchanger configured to receive a stream of flue gas from the turbine and at least one of the stream of gaseous hydrogen and the stream of gaseous oxygen, wherein the third heat exchanger is configured to transfer heat between the stream of flue gas and the stream of gaseous hydrogen and/or the stream of gaseous oxygen to superheat the stream of hydrogen and/or the stream of oxygen; wherein the system is configured to direct the stream of hydrogen and the stream of oxygen to the combustion chamber, wherein at least one of the stream of hydrogen and the stream of oxygen is superheated.
Absstract of: US2025279454A1
A primary objective of the present invention is solid-oxide cell structures, interconnect structures, stack structures, and methods that symbiotically maximize durability, scaled manufacturability, device efficiency, and cost-efficiency for large area cell structures, particularly for Intermediate-temperature (IT) Solid-Oxide-Cell and Low-Temperature-Solid-Oxide-Cell applications, wherein rolled-alloy-based micro-cells are formed in dense arrays.
Absstract of: US2025279447A1
The present invention relates to a membrane humidifier for a fuel cell, which can prevent a decrease in humidification efficiency due to a pressure difference between the inside and outside of a membrane humidifier, the membrane humidifier for a fuel cell, according to an embodiment of the present invention, comprising: a middle case having a module insertion part inside; a cap case coupled to the middle case; a hollow fiber membrane module inserted to the module insertion part; and a pressure buffer part between the inner wall of the middle case and the module insertion part.
Absstract of: US2025279449A1
A cooling system for a fuel cell that cools a fuel cell stack and an intercooler includes a radiator, a stack cooling circuit, an intercooler cooling circuit, a bypass channel, a flow regulating valve that regulates a flow diversion ratio to the bypass channel, a first temperature sensor, a second temperature sensor, and a control device that performs an abnormality monitoring process of monitoring the cooling system for an abnormality. The abnormality monitoring process includes a first determination process of determining that there is an abnormality when the flow diversion ratio of the flow regulating valve is 100 percent and the difference between the detected value by the first temperature sensor and the detected value by the second temperature sensor is equal to or greater than the first predetermined value.
Absstract of: US2025279451A1
A fuel cell system includes: a fuel cell stack that generates electric power by using a chemical reaction of anode gas and cathode gas; a temperature measurement section that measures temperature of the fuel cell stack; a depressurization section; and an operation control section that controls the fuel cell stack and the depressurization section. The fuel cell stack includes a cathode gas channel in which the cathode gas flows. The depressurization section allows the cathode gas channel to be depressurized. When the operation control section stops the operation of the fuel cell stack, the operation control section controls the depressurization section to cause the depressurization section to depressurize the inside of the cathode gas channel until pressure inside the cathode gas channel falls below the saturated water vapor pressure corresponding to the temperature of the fuel cell stack measured by the temperature measurement section.
Absstract of: US2025279455A1
The electrochemical cell device includes a cell, a support body, and a fixing member. The cell has a first end and extends from the first end in a first direction. The support body supports one end portion of the cell including the first end. The fixing member is located between the cell and the support body and is in contact with a first surface of the cell along the first direction and a second direction intersecting the first direction. The first surface includes a contact area in contact with the fixing member and a non-contact area not in contact with the fixing member. The contact area has a second end on the first end side. A length in the first direction from the second end to the non-contact area on a side opposite to the first end is larger at a second part located at an end portion in the second direction than at a first part located at a center portion in the second direction.
Nº publicación: US2025279448A1 04/09/2025
Applicant:
EXXONMOBIL TECH AND ENGINEERING COMPANY [US]
FUELCELL ENERGY INC [US]
EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY,
FuelCell Energy, Inc
Absstract of: US2025279448A1
A fuel cell is provided including an anode configured to receive, and allow to pass through, an anode process gas, a cathode configured to receive, and allow to pass through, a cathode process gas, and an electrolyte matrix layer separating the anode and the cathode. One of the anode or the cathode has an extended edge seal chamber, and the fuel cell is configured to receive the anode process gas and the cathode process gas in substantially perpendicular directions relative to each other, and the extended edge seal chamber is configured to allow the anode process gas and the cathode process gas to pass through the anode and the cathode in substantially parallel flow paths.
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