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VERFAHREN UND SYSTEME ZUM ÜBERWACHEN DES ZUSTANDS (STATE OF HEALTH SOH) IN BRENNSTOFFZELLEN

Resumen de: DE102025107749A1

Hierin werden Verfahren und Systeme zum Überwachen und Bewerten des Zustands (state of health SOH) einer Brennstoffzelle offenbart. Der Zustand einer Zelle kann durch Bestimmen des Verlusts der elektrochemisch aktiven Oberfläche (electrochemical active surface area ECSA) des Kathodenkatalysators bewertet werden. Das Verfahren beinhaltet das Bereitstellen einer externen Schrittanregung für eine Zelle, das Aufzeichnen der Reaktion der Brennstoffzelle auf die externe Schrittanregung und das Bestimmen eines analytischen Ausdrucks der aufgezeichneten Reaktion der Brennstoffzelle. Sobald der analytische Ausdruck bestimmt ist, wird mindestens ein Parameter des analytischen Ausdrucks mit seinem Wert zu Beginn der Lebensdauer (beginning of life BoL) dieses Parameters verglichen, um den ECSA-Verlust zu bestimmen.

CURRENT COLLECTOR AND ELECTROCHEMICAL CELL STACK

Resumen de: US2025279440A1

A current collector includes a flow path connecting a gas supply end portion and a gas discharge end portion, the gas supply end portion being in the metal member for supplying gas to the electrochemical cell, and the gas discharge end portion being in the metal member for discharging the gas from the electrochemical cell. The flow path includes: first flow paths through which the gas flows from the gas supply end portion to the gas discharge end portion in a first direction of a longitudinal direction of each first flow path, the first flow paths being arranged in a second direction perpendicular to a stacking direction and different from the first direction; and a second flow path between the gas supply end portion and the first flow paths, the second flow path being capable of supplying the gas from the gas supply end portion to the first flow paths.

HYBRID ELECTROCATALYST, ELECTRODE COMPRISING THE SAME AND THEIR METHOD OF MANUFACTURE

Resumen de: US2025279439A1

Efficient and robust bifunctional electrocatalysts for both the oxygen reduction reaction and oxygen evolution reaction are required for renewable energy technologies such as fuel cells, water electrolysers and rechargeable metal-air batteries. To address this requirement an electrode is provided comprising carbon sphere chains (CSCs) upon a current collector, wherein the CSCs have a functionalized surface bearing oxygen-containing functional groups and manganese oxide (MnOx) nanorods attached to the functionalized surfaces of the CSCs. A manufacturing sequence for these electrodes is provided comprising providing a current collector having a surface that is catalytically active towards the growth of CSCs, growing CSCs on the catalytically active surface, functionalizing the surface of the CSCs, and growing MnOx nanorods on the functionalized surface.

END CELL HEATER FOR FUEL CELL

Resumen de: US2025279442A1

Disclosed is an end cell heater for a fuel cell, including a heater plate; a power supply terminal coupled to the heater plate; a first electrode terminal coupled to a first end of the terminal; a heating element stacked on the heater plate; and a second electrode terminal coupled to the heating element and coupled corresponding to the first electrode terminal, wherein the heater plate includes a terminal guide protruding to surround the first electrode terminal, thereby ensuring electric connection between the first electrode terminal and the second electrode terminal.

PATTERNED CATALYST LAYERS IN FUEL CELLS

Resumen de: US2025279441A1

A fuel cell includes a flow field plate having at least one channel and at least one land, each of the at least one channel being positioned between two adjacent lands. The fuel cell further includes a catalyst layer. The fuel cell also includes a gas diffusion layer (GDL) positioned between the flow field plate and the catalyst layer. The catalyst layer has a first region aligned with the at least one channel and a second region aligned with at least one land. The first region has a first composition, a first carbon material, and a first carbon ratio of an amount of the first composition to the first carbon material. The second region has a second composition, a second carbon material, and a second carbon ratio of an amount of the second composition to the second carbon material. The first carbon ratio is different than the second carbon ratio.

COOLING SYSTEM FOR FUEL CELL ONBOARD A VEHICLE INCLUDING EVAPORATIVE COOLING DEVICE

Resumen de: US2025279444A1

A cooling system for a fuel cell onboard a vehicle includes a coolant circuit and an evaporative cooling device including an evaporation chamber and a thermally conductive conduit extending through the evaporation chamber. The coolant circuit is configured to circulate a coolant through the coolant circuit and through a portion of the fuel cell. The thermally conductive conduit has an inner surface that at least partially defines a coolant channel in fluid communication with the coolant circuit and an opposite outer surface exposed to an environment within the evaporation chamber. When a working fluid is applied to the outer surface of the thermally conductive conduit within the evaporation chamber. the evaporative cooling device is configured to evaporatively cool the coolant flowing through the coolant channel by promoting evaporation of the working fluid from the outer surface of the thermally conductive conduit.

FUEL CELL SYSTEM

Resumen de: US2025279450A1

The fuel cell system includes a fuel cell, a fuel gas tank, a gas flow path, a pressure reducing valve, a pressure sensor for acquiring the pressure of the gas on the side of the fuel cell with respect to the pressure reducing valve, an operation storage unit for storing the length of the deactivation period of the fuel cell system, and a control unit. The control unit performs start control for starting the operation of the fuel cell when the first start condition including that the pressure acquired by the pressure sensor is smaller than the first pressure threshold is satisfied, and performs start control when the second start condition including that the pressure acquired by the pressure sensor is larger than the first pressure threshold and the length of the pause period stored in the operation storage unit is larger than the pause threshold is satisfied.

FUEL EJECTOR FOR A FUEL CELL

Resumen de: US2025279445A1

A fuel ejector is disclosed to provide gaseous fuel to a fuel cell. The fuel ejector includes an ejector body having first and second fluid inlets and a mixing volume. A nozzle is removably engaged to the ejector body in axial alignment with the first fluid inlet. The nozzle is axially adjustable in position with shims to position the nozzle inlet at a desired location within the mixing volume. A sleeve may also be selected and positioned in the first inlet to establish a throat diameter.

FUEL CELL ASSEMBLY WITH EXTERNAL MANIFOLD FOR PARALLEL FLOW

Resumen de: 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.

ELECTROCHEMICAL CELL DEVICE, MODULE, AND MODULE HOUSING DEVICE

Resumen de: 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.

FUEL CELL SYSTEM

Resumen de: 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.

COOLING SYSTEM FOR FUEL CELL

Resumen de: 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.

Large-Area Solid Oxide Micro-Cell

Resumen de: 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.

HYDROGEN FUEL SYSTEM ARCHITECTURE WITH OXYGEN SEPARATION AND SUPERHEATING

Resumen de: 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.

CONNECTOR DEVICE AND FUEL CELL STACK HAVING SUCH A CONNECTOR DEVICE

Resumen de: 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.

MEMBRANE HUMIDIFIER FOR FUEL CELL

Resumen de: 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.

METHOD FOR IMPLEMENTING AN AMMONIA-FUELLED FUEL CELL WITH DIHYDROGEN RECYCLING, AND ASSOCIATED PLANT

Resumen de: 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.

METHOD AND DEVICE FOR HUMIDIFYING CATHODE AIR IN A FUEL CELL SYSTEM AND FUEL CELL SYSTEM

Resumen de: 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.

COMPOSITE ELECTROLYTE MEMBRANE AND METHOD OF MANUFACTURING THE SAME

Resumen de: 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.

Druckhaltesystem für eine Hydraulikanlage eines Luftfahrzeuges, Hydraulikanlage und Luftfahrzeug

Resumen de: DE102024105891A1

Die Erfindung betrifft Druckhaltesystem (1) für eine Hydraulikanlage (2) eines Luftfahrzeuges (3), welches gewichtsreduziert und besonders robust ist. Das Druckhaltesystem (1) weist einen Ausgleichsbehälter (4) mit einer hydraulikseitigen Schnittstelle (5) zum hydraulischen Verbinden mit einer Behälterschnittstelle (6) der Hydraulikanlage (2), und mit einer gasseitigen Schnittstelle (7) auf, sowie einen Gasdruckbehälter (8), der über ein erstes Absperrorgan (9) mit der gasseitigen Schnittstelle (7) fluidisch verbunden ist.Die Erfindung betrifft weiter eine zugehörige Hydraulikanlage (2) und ein zugehöriges Luftfahrzeug (3).

BRENNSTOFFEJEKTOR FÜR EINE BRENNSTOFFZELLE

Resumen de: DE102025106972A1

Offenbart wird ein Brennstoffejektor zum Bereitstellen von gasförmigem Brennstoff an eine Brennstoffzelle. Der Brennstoffejektor beinhaltet einen Ejektorkörper, der einen ersten und einen zweiten Fluideinlass und ein Mischvolumen aufweist. Eine Düse steht in axialer Ausrichtung mit dem ersten Fluideinlass entfernbar in Eingriff mit dem Ejektorkörper. Die Düse ist axial in ihrer Position mit Unterlegscheiben einstellbar, um den Düseneinlass an einer gewünschten Stelle innerhalb des Mischvolumens zu positionieren. Eine Hülse kann auch ausgewählt und in dem ersten Einlass positioniert werden, um einen Halsdurchmesser festzulegen.

Steckverbindung für ein System zur Zellspannungsüberwachung einer Brennstoffzelle

Resumen de: 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.

Lageranordnung mit Schmiermitteldepot sowie Brennstoffzellensystem

Resumen de: 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).

MODULE ARRANGEMENT OF SOLID OXIDE CELL STACKS

Resumen de: AU2024223621A1

An object of the invention is a module arrangement of solid oxide cell stacks being arranged to a 2 x N matrix, N being any natural number. The arrangement comprises a fuel inlet manifold (150) and a fuel outlet manifold (152) between the two adjacent stacks (103).The fuel inlet manifold (150) and the fuel outlet manifold (152) form a fuel manifold (171) to deliver supply fuel gas (108) to the stacks and fuel exhaust gas (177) from the stacks, and the stacks been arranged in the manifold in a parallel connection from the fuel gas supply and fuel exhaust gas connection point of view. The stacks (103) are arranged with a common oxygen side gas supply compartment (106) connecting the inlet side of the open structure of oxygen side gas delivery (105) and common oxygen side gas exhaust compartment (176) connecting the outlet side of the open structure of oxygen side gas delivery (105). The inlet manifold (150) comprises gas flow holes of controllable sizes to the stacks (103) for forming even gas flow to the stacks, and the outlet manifold (152) comprises gas flow holes of controllable sizes to the stacks (103) for forming even gas flow from the stacks. The module arrangement comprises a first gas seal (155), a first electrical insulation plate (119) and a second gas seal (156) between the manifold (171) and the stack (103). On top side (122) and on bottom side (124) of the cell stack (103) the module arrangement comprises a second electrical insulation plate (114), compression st

Steckervorrichtung und Brennstoffzellen-Stack mit einer solchen Steckervorrichtung

Nº publicación: DE102024105790A1 04/09/2025

Solicitante:

HARTING CUSTOMISED SOLUTIONS GMBH & CO KG [DE]
HARTING Customised Solutions GmbH & Co. KG

Resumen de: DE102024105790A1

Die Erfindung betrifft eine Steckervorrichtung (4) für einen Brennstoffzellen-Stack (1), umfassend einen Scherenhubmechanismus (5) mit mindestens zwei mechanisch miteinander gekoppelten Scherenelementpaaren (6, 7, 8, 9) sowie mindestens drei am Scherenhubmechanismus (5) äquidistant zueinander angeordnete Kontaktmodule (10), wobei jedes Kontaktmodul (10) dazu eingerichtet und angeordnet ist, mit einem elektrisch leitenden Element des Brennstoffzellen-Stacks (1) elektrisch gekoppelt zu sein. Ferner betrifft die Erfindung einen Brennstoffzellen-Stack (1) mit mindestens einer solchen Steckervorrichtung (4).