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Druckregelvorrichtung, Energiewandlersystem und Fahrzeug

Resumen de: DE102024113272A1

Die hier offenbarte Technologie betrifft erfindungsgemäß eine Druckregelvorrichtung (11) für ein Energiewandlersystem (10), aufweisend einen Fluidpfad (12), einen elektronischen Druckregler (13) zum Regeln eines Fluiddrucks im Fluidpfad (12), ein Überdruckventil (14), das im Fluidpfad (12) stromabwärts des Druckreglers (13) positioniert und konfiguriert ist, bei einem Überdruck am Überdruckventil (14) von einem Normalbetrieb in einen Überdruckbetrieb umzuschalten, eine Erkennungseinheit (15) zum Erkennen des Überdruckbetriebs, und eine Unterbrechungseinheit (16), die konfiguriert ist, bei einem erkannten Überdruckbetrieb eine Fluidströmung durch den Fluidpfad (12) zu unterbrechen. Die Technologie betrifft zudem ein Energiewandlersystem (10) mit der Druckregelvorrichtung (11) und ein Fahrzeug (100) mit dem Energiewandlersystem (10).

Verfahren zum Betreiben eines Brennstoffzellensystems, Steuergerät

Resumen de: DE102024204395A1

Die Erfindung betrifft ein Verfahren zum Betreiben eines Brennstoffzellensystem (1), umfassend einen Brennstoffzellenstapel (2) und einen ein Kühlmittel führenden Kühlkreis (3), in den der Brennstoffzellenstapel (2) eingebunden ist, wobei im Normalbetrieb das Kühlmittel mit Hilfe einer in den Kühlkreis (3) integrierten Kühlmittelpumpe (4) zirkuliert wird. Erfindungsgemäß wird im Abstellfall die Kühlmittelpumpe (4) zeitweise und/oder in bestimmten zeitlichen Abständen aktiviert und das Kühlmittel durch einen in den Kühlkreis (3) integrierten Ionentauscher (5) geleitet, so dass etwaige im Kühlmittel entstandene Säuren oder Basen mit Hilfe des Ionentauschers (5) gebunden werden.Darüber hinaus betrifft die Erfindung ein Steuergerät für ein Brennstoffzellensystem (1).

BRENNSTOFFZELLENSYSTEM MIT EINER SPEICHERVORRICHTUNG ZUM SPEICHERN VON FLÜSSIGEM WASSERSTOFF

Resumen de: DE102024113016A1

Speichervorrichtung (100) zum Speichern von flüssigem Wasserstoff, aufweisend: Ein äußerer Druckbehälter (110);ein innerer Druckbehälter (120), der innerhalb des äußeren Druckbehälters (110) angeordnet ist, wobei in dem inneren Druckbehälter (120) der flüssige Wasserstoff gespeichert werden kann;wobei zwischen dem inneren Druckbehälter (120) und dem äußeren Druckbehälter (110) ein Raumbereich (115) ausgebildet ist, in dem ein Vakuum herrscht;eine erste Fluidleitung (145), durch die flüssiger Wasserstoff von außerhalb des äußeren Druckbehälters (110) dem inneren Druckbehälter (120) zugeführt werden kann;eine zweite Fluidleitung (160), über die flüssiger Wasserstoff aus dem inneren Druckbehälter (120) nach außerhalb des äußeren Druckbehälters (110) abgeführt werden kann;eine Rohrleitung (150), die von außerhalb des äußeren Druckbehälters (110) in den inneren Druckbehälter (120) bis zu einem Bodenbereich des inneren Druckbehälters (120) reicht, wobei die Rohrleitung (150) mit einer außerhalb der Speichervorrichtung (110) angeordneten Absaugeinrichtung (210) fluidisch verbunden werden kann, derart, dass kondensierte Verunreinigungen (125) aus einem Bodenbereich des inneren Druckbehälters (120) abgesaugt werden können.

FUEL CELL BACKPLANE SYSTEM AND METHODS OF USING THE SAME

Resumen de: WO2025235502A1

An apparatus for a vehicle that utilizes fuel cell modules for power. The apparatus includes a backplane mounted to the vehicle and a plurality of blades removably coupled to the vehicle. Each blade of the plurality of blades is configured to be in fluid communication and electrical communication with the backplane. The apparatus further includes a plurality of power modules, each power module of the plurality of power modules being disposed in a different blade of the plurality of blades. In some embodiments, the power module includes a hydrogen fuel cell module. These modules are configured to provide electric power to one or more portions of the vehicle. The blades are removable, allowing for easy replacement if a blade does not perform above a pre-determined electrical power threshold.

METHOD FOR DETERMINING A TRANSITION METAL CATION CONCENTRATION WITHIN A FUEL CELL SYSTEM

Resumen de: WO2025233379A1

The method relates to a method for determining a transition metal cation concentration (H+ exch) within a fuel cell system having an unknown transition metal cation concentration (H+ exch) by means of electrochemical impedance spectroscopy, the method comprising the steps of: determining (100) an electrical high-frequency resistance (R) within the fuel cell system having an unknown transition metal cation concentration (H+ exch); normalizing (200) the determined electrical high-frequency resistance (R) with respect to a value (R0) of an electrical high-frequency resistance of a fuel cell system having a minimal transition metal cation concentration (H+ exch); comparing (300) the normalized determined high-frequency resistance (R/R0) with a profile of a calibration curve (KK) for a normalized electrical high-frequency resistance (R/R0); and determining (400) the transition metal cation concentration (H+ exch) within the fuel cell system having an unknown transition metal cation concentration (H+ exch) on the basis of the comparison of the normalized determined high-frequency resistance (R/R0) with the profile of the calibration curve (KK) for a normalized electrical high-frequency resistance (R/R0).

METHOD FOR PROVIDING ELECTRICAL POWER AND HEAT BY MEANS OF A FUEL CELL SYSTEM

Resumen de: WO2025233386A1

The invention presented relates to a method (100) for providing electrical power and heat by means of a fuel cell system (200). The method (100) presented comprises executing (101) a mathematical model of the fuel cell system (200), determining (103) performance parameters optimized for a specified state, and setting (105) the determined performance parameters on at least one fuel cell stack (201) of the fuel cell system (200), wherein the mathematical model can be switched between at least four specified states, wherein in a first state the mathematical model models an operating situation in which the fuel cell system (200) can be optimized for providing electrical power and thermal energy, wherein in a second state the mathematical model models an operating situation in which the fuel cell system (200) can be optimized for providing just electrical power, wherein in a third state the mathematical model models an operating situation in which the fuel cell system (200) can be optimized for providing just thermal energy and wherein in a fourth state the mathematical model models an operating situation in which the fuel cell system (200) can be optimized for an operating situation without any requirement for electrical power and without any requirement for thermal energy.

METHOD FOR POST-TREATING PLATINUM-ALLOY CATALYST MATERIAL

Resumen de: WO2025233163A1

The invention relates to a method for post-treating platinum-alloy catalyst material (6), comprising the steps of carrying out (100) a first treatment for the targeted extraction of transition-metal cations from the platinum-alloy catalyst material (6), and carrying out (200) a second treatment for stimulating a rearrangement of the lattice structure of the platinum-alloy catalyst material (6), the second treatment comprising targeted temperature-control of the platinum-alloy catalyst material (6).

ELECTROCHEMICAL DEVICE

Resumen de: WO2025233182A1

The invention relates to an electrochemical device comprising a plurality of electrochemical units, wherein each electrochemical unit comprises at least one media separator and at least one frame on which the media separator is held. The aim of the invention is to provide such an electrochemical device in which the process of producing the frames of the electrochemical units is suitable for mass production and the frames nevertheless have a sufficient chemical resistance to the operating media of the electrochemical device and a sufficient mechanical strength to absorb the pressure loads which occur during operation in the axial direction and in the radial direction. This is achieved in that the frame has a media guiding region, which comes into contact with at least one operating medium of the electrochemical device, and a stabilizing region, which does not come into contact with an operating medium of the electrochemical device. The media guiding region comprises a first plastic material, and the stabilizing region comprises a second plastic material, said first plastic material and second plastic material differing from one another, the first plastic material having a higher chemical resistance to at least one of the operating media than the second plastic material, and the second plastic material having a higher strength, a higher rigidity and/or a higher creep resistance than the first plastic material.

ELECTROCHEMICAL DEVICE

Resumen de: WO2025233183A1

The invention relates to an electrochemical device comprising a plurality of electrochemical units which follow one another along a stacking direction, wherein each electrochemical unit comprises at least one media separator and at least one frame on which the media separator is held in the mounted state of the electrochemical device, and the electrochemical units are clamped to one another by means of a clamping device of the electrochemical device, said clamping device comprises a plurality of clamping elements which extend substantially parallel to the stacking direction. The aim of the invention is to provide such an electrochemical device in which parts of the clamping device, in particular the clamping elements and the end plates of the stack of electrochemical units, can have smaller dimensions without impairing the suitability of the clamping device for generating, between the frames of the electromical units, the sealing forces needed to sufficiently seal the electrolysis block. This is achieved in that each of the frames of the electrochemical units has at least one clamping element through-opening through which, in each case, one of the clamping elements extends in the mounted state of the electrochemical device.

METHOD FOR OPERATING A FUEL CELL SYSTEM, FUEL CELL SYSTEM, COMPUTER PROGRAM PRODUCT AND COMPUTER-READABLE STORAGE MEDIUM

Resumen de: WO2025233143A1

The invention relates to a method for operating a fuel cell system (300) having a fuel cell (100) and a reformer (200), comprising: - measuring an input temperature at an input (210) of the reformer (200); - measuring an output temperature at an output (220) of the reformer (200); - determining a temperature difference from the input temperature and the output temperature; - determining a model temperature difference of the reformer (200) from a model function which depends at least on the input temperature; - comparing the temperature difference with the model temperature difference. The invention also relates to a fuel cell system, a computer program product and a computer-readable storage medium.

METHOD FOR DEACTIVATING A FUEL CELL SYSTEM, AND FUEL CELL SYSTEM

Resumen de: WO2025233120A1

The invention relates to a method (100) for deactivating a fuel cell system (300) comprising a plurality of fuel cell stacks (301, 303) and a temperature control system connecting the fuel cell stacks (301, 303), wherein the method (100) comprises: - selecting (101) a fuel cell stack (301) to be activated first for a subsequent start-up of the fuel cell system from the plurality of fuel cell stacks (301, 303); - initiating (103) a first drying phase in response to a command to deactivate the fuel cell system (300); - initiating (105) a second drying phase after the first drying phase, wherein during the first drying phase a coolant flow through the selected fuel cell stack (301) is adjusted by directing at least part of the coolant flow to a further fuel cell stack (303) of the plurality of fuel cell stacks (301, 303) such that a temperature in the selected fuel cell stack (301) remains within a predetermined temperature range, wherein during the second drying phase, the coolant flow is cooled by a cooler (307) and is directed through the selected fuel cell stack (301) at a volume flow rate that is increased relative to the first drying phase.

DEVICE FOR MECHANICALLY CLAMPING A STACK COMPRISING ELECTROCHEMICAL CELLS

Resumen de: WO2025233159A1

The invention relates to a device for mechanically clamping a stack comprising electrochemical cells, - wherein the stack has a pair of end plates which are held against one another via a clamping means in such a way that the stack with its electrochemical cells can be clamped between the end plates, - wherein the clamping means is designed to exert a clamping force with the end plates on the stack arranged between the end plates, - and the clamping means serves as an electrical conductor for the electrochemical cells in the stack.

SOLID OXIDE CELL INTERCONNECTS AND METHODS OF MAKING THEREOF BY CASTING

Resumen de: WO2025235700A1

A cast iron or an iron chromium alloy interconnect for an electrochemical stack includes an air side and an opposing fuel side, a fuel flow field located on the fuel side and including fuel channels separated by fuel ribs, and an air flow field located on the air side including air channels separated by air ribs.

電気化学セル、電気化学セル装置、モジュールおよびモジュール収容装置

Resumen de: US2025118785A1

An electrochemical cell includes a first electrode layer, a second electrode layer, and a solid electrolyte layer. The solid electrolyte layer is located between the first electrode layer and the second electrode layer, and has oxide ion conductivity. The first electrode layer includes an electron conductive material and a first material containing, as a main component, a first element having an electronegativity smaller than that of zirconium.

GAS DIFFUSION ELECTRODE BASE MATERIAL AND FUEL CELL

Resumen de: EP4648143A1

Provided is a gas diffusion electrode substrate which is excellent in moisture retention property and water drainability and has excellent fuel cell performance at a low current density and a high current density in a fuel cell. A gas diffusion electrode substrate includes a microporous layer formed on at least one surface of an electrically conductive porous substrate, in which the microporous layer contains a filler containing an organic polymer, the filler having a carbonization yield of 55% or more after heating at 1,000°C for 10 minutes and a mean particle diameter of 5 to 60 µm, the microporous layer contains the filler in a mass percentage of 10 to 45 in a mass percentage of 100 of the microporous layer, and an arithmetic mean roughness Sa of a surface of the microporous layer is 5 to 20 µm.

プロパルギル基がグラフトされたポリ（アリールピペリジニウム）共重合体アイオノマー、架橋された陰イオン交換膜及びその製造方法

Resumen de: WO2024096396A1

The present invention relates to: a poly(aryl piperidinium) copolymer ionomer which is grafted with a propargyl group, contains a piperidinium group, and does not have any aryl ether bonds in the polymer backbone; an anion exchange membrane cross-linked therefrom; and a method for preparing same. The poly(aryl piperidinium) copolymer ionomer grafted with a propargyl group has excellent chemical and thermal stability, ionic conductivity, mechanical properties, dimensional stability, and durability. In addition, the cross-linked anion exchange membrane prepared therefrom is greatly improved in the peel strength of the catalyst layer, thus promoting interaction between the ionomer and the membrane and stabilizing the catalyst layer to remarkably improve the durability of a fuel cell.

レドックスフロー電池用電極、レドックスフロー電池セル、およびレドックスフロー電池システム

Resumen de: TW202418627A

This redox flow battery electrode comprises a fiber assembly including carbon fibers, wherein the carbon fibers each include: a plurality of groove portions that are provided along the length of the carbon fiber; a ridge portion that is between the groove portions and relatively protrudes beyond the groove portions; and a cross-section in which the perimeter of the carbon fiber is larger than the perimeter of a virtual circle. The cross-section is a section made by cutting the carbon fiber by a plane orthogonal to the length of the carbon fiber. The virtual circle is a true circle having an area equal to the area of the cross-section.

燃料電池用電力供給システム、燃料電池システム、および燃料電池用電力供給方法

Resumen de: JP2025168810A

【課題】外部電源の停電時に燃料電池装置起動用電力の供給を可能とする。【解決手段】実施形態によれば、燃料電池用電力供給システム２００は、燃料電池装置１０の補機１３への電力を、外部電源１から供給する外部電力供給モード、バックアップ電源２から供給するバックアップ電力供給モード、燃料電池装置１０の自立電力を供給する自立運転モードのいずれでも供給可能な電力切替え装置２０と、電源制御装置１００とを具備する。電力切替え装置２０は、外部電力供給モードとバックアップ電力供給モードを切替える外部電源切替えスイッチ３３と、外部電力供給モードまたはバックアップ電力供給モードと自立運転モードを切替える自立電源切替えスイッチ３５と、複数の開閉スイッチ３０ｂを有する。電源制御装置１００は、外部電源１の停電の際に、複数の開閉スイッチ３０ｂおよび燃料電池装置１０を制御する。【選択図】図１

FABRICATION D'UN FILM MINCE MONOLITHIQUE SANS STENOPE POUR LES CELLULES PCCEL/SOC

Resumen de: BE1032543A1

La présente invention concerne un procédé de préparation de cellules d'électrolyse céramique conductrices de protons (PCCEL) et de cellules d'électrolyse à oxyde solide (SOC) monolithiques à couche mince, comprenant les étapes suivantes: a. impression d'un support métallique à l'aide d'un procédé d'impression 3D pour former un substrat à couche mince et une interconnexion; b. extrusion ou dépôt de précurseurs liquides contenant des particules métalliques finement dispersées et des additifs sur un substrat pour former une structure tridimensionnelle; c. l'élimination de la matrice non métallique par déliantage, suivie d'un traitement thermique à haute température par frittage pour consolider les particules métalliques et former un objet solide; et d. le contrôle local de la densité et de la porosité des matériaux pour produire au moins deux zones de porosité contrôlée différente, facilitant le dépôt d'électrodes-assemblage électrolytique (EEA). L'invention concerne également les EEA produits par cette méthode.

DIAGNOSIS DEVICE FOR ELECTROCHEMICAL MODULE, DIAGNOSIS SYSTEM, DIAGNOSIS METHOD, AND DIAGNOSIS PROGRAM

Resumen de: EP4647780A1

In an embodiment, a diagnosis apparatus for an electrochemical module in which at least one of an anode and a cathode includes a catalyst is provided, and the diagnosis apparatus includes an output circuit and a processor. The processor, in a state in which the operation power is input to the electrochemical module or the operation power is output from the electrochemical module, superimposes the inspection power on the operation power by supplying the inspection power from the output circuit to the electrochemical module, and measures measurement data for diagnosis by measuring a current and a voltage for the electrochemical module in a state in which the inspection power is superimposed on the operation power.

METAL-CARBON COMPOSITES AND USES THEREOF

Resumen de: WO2024147140A1

The present disclosure relates to composite material comprising metal, carbon and optionally heteroatoms and methods of their use in electrochemical reactions.

PREHEAT FOR HTPEM FUEL CELL COOLING AIR

Resumen de: GB2640920A

A power system for a propellor-driven aircraft includes hydrogen fuel source 114; fuel cell (FC) stack 102; air compressor 104 for introducing compressed air into a cathode 118 of the FC stack; heat exchanger 126 for warming ram air 134 for cooling the FC stack; and elongated shaft 106 for supporting the air compressor system and turbine 108. In a first aspect, the heat exchanger is configured to condense liquid water from a cathode exhaust stream from the FC stack, and liquid water sprayer 132 is configured to spray condensed liquid water 72 recovered from the cathode exhaust stream onto the FC stack to cool the FC stack by evaporative cooling. In another aspect, the heat exchanger is configured to extract waste heat from electric propulsion system and/or gear box (232, fig 5), to warm the ram air for cooling the FC stack. In this aspect, the system also includes a hydrogen gas preconditioner/air intercooler (219, fig 5) and an anode tail gas oxidiser (222, fig 5), where exhaust anode and cathode streams are combusted before passing the exhaust (221, fig 5) from the anode tail gas oxidiser to the turbine.

TREATMENT DEVICE

Resumen de: EP4647148A1

Provided is a treatment device capable of suppressing the leakage of a treatment liquid. Provided is a treatment device that includes a plurality of spaces formed by a plurality of cation-exchange membranes (14) and anion-exchange membranes (13) that are arranged alternately between a cathode plate (12) and an anode plate (11), with a gasket (15) (frame member) interposed between each adjacent pair of cation-exchange membranes (14) and anion-exchange membranes (13), and that performs electrodialysis or reverse electrodialysis by allowing a treatment liquid fed from outside to flow through the plurality of spaces, in which the gasket (15) (frame member) has seal lines (154, 254) that define a range where the treatment liquid is allowed to flow.

DEVICE FOR MECHANICALLY TENSIONING A STACK OF ELECTROCHEMICAL CELLS

Resumen de: EP4647537A1

Vorrichtung zum mechanischen Verspannen eines Stacks mit elektrochemischen Zellen,• wobei der Stack ein Paar Endplatten aufweist, die über ein Spannmittel derart aneinandergehalten sind, dass der Stack mit seinen elektrochemischen Zellen zwischen den Endplatten verspannbar ist,• wobei das Spannmittel dazu ausgebildet ist, mit den Endplatten eine Spannkraft auf den zwischen den Endplatten angeordneten Stack auszuüben,• und das Spannmittel als elektrischer Leiter für die elektrochemischen Zellen im Stack dient.

FLEXIBLE CELL FRAME FOR ELECTROLYSER STACKS

Nº publicación: EP4647533A1 12/11/2025

Solicitante:

SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG

Resumen de: EP4647533A1

The invention is about an electrochemical cell (1) comprising: a membrane electrode assembly (2) comprising an electrolyte layer (3) and first and second electrode layers (4, 5) disposed on opposite major surfaces (6) of the electrolyte layer (3), first and second gas diffusion layers (7, 8) disposed directly on opposite major surfaces (9) of the membrane electrode assembly (2), and a cell frame (10) formed around a periphery (11) of the membrane electrode assembly (2) and the first and second gas diffusion layers (7, 8), wherein in uncompressed state a thickness of the cell frame (10) in a stacking direction (12) of the layers (3, 4, 7, 8) is smaller than a thickness of the membrane electrode assembly (2) and first and second gas diffusion layers (7, 8) combined, and a first stiffness of the cell frame (10) is at most twice as high as a second stiffness of a combination of membrane electrode assembly (2) and the first and second gas diffusion layers (7, 8). The invention further relates to an electrolyser stack (17) comprising a plurality of electrochemical cells (1).