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AIRCRAFT FUEL CELL PROPULSION UNIT

Resumen de: US20260106186A1

The invention relates to an aircraft fuel cell propulsion unit comprising a fuel cell system that includes at least one anode and at least one cathode as well as a process gas device for supplying the anode and the cathode with fuel and ambient air and for discharging used process gases, a ram air duct through which ram air flows and a heat exchanger arranged in the ram air duct which is designed to dissipate heat generated by the fuel cell system to the environment.

METHOD OF COUNTERACTING DEGRADATION OF A FUEL CELL SYSTEM OF A VEHICLE

Resumen de: US20260103116A1

The present disclosure relates to a method of counteracting degradation of a fuel cell system of a vehicle. A processor device is used for performing the method. The processor device estimates standstill average power needs of the vehicle by estimating the average power that the vehicle will consume during a predetermined time period during which the vehicle will be at a standstill. An idling power extractable from the fuel cell system is determined. The idling power is compared with the estimated standstill average power needs. Based on the comparison, a duration for which the fuel cell system should be kept turned on to fulfil the estimated standstill average power needs is determined. The fuel cell system is controlled to be kept turned on for the determined duration.

FUEL CELL

Resumen de: US20260106183A1

A fuel cell includes sensors. Each sensor includes: a sensor portion provided on at least one of separators, a frame member, and an electrolyte membrane; and a wiring portion connected to the sensor portion and extending to an outer peripheral portion of one of the separators or an outer peripheral portion of a membrane electrode assembly. The sensor further includes a base insulating film covering a sensor arrangement region; wiring patterns laminated on the base insulating film; and a covering insulating film covering the wiring patterns and portions of the base insulating film not covered with the wiring patterns.

MOLECULAR DESIGN OF ELECTROACTIVE SPECIES AND MATERIALS PROCESSING METHODS IN ORGANIC REDOX FLOW BATTERIES

Resumen de: AU2024332005A1

A composition of matter useful as a posolyte or negolyte in a redox flow battery, including a compound comprising a first electroactive moiety and one or more solubilizing moieties each connected to the first electroactive moiety directly or via linker moieties, wherein the linker moieties, when present each comprise carbon and could contain at least one of hydrogen, oxygen, nitrogen, sulfur, or silicon.

FUEL CELL MODULE, ASSEMBLY POSITIONING ASSEMBLY AND VEHICLE

Resumen de: WO2026076800A1

Disclosed in the present application are a fuel cell module, an assembly positioning assembly and a vehicle. The fuel cell module comprises a case, a cell stack, an insulating support assembly and two or more cross beams, wherein the insulating support assembly is arranged between the case and the cell stack, and the insulating support assembly is in contact with all side surfaces of a stack core of the cell stack and all inner side surfaces of a bearing frame, such that the side surfaces of the stack core can be supported and an interlayer slip of the cell stack can be resisted; and gaps are formed between the insulating support assembly and both an end plate and a current collection plate of the cell stack, and the gaps can serve as buffer spaces to prevent the insulating support assembly from being damaged by the impact of the end plate and the current collection plate. The two or more cross beams are arranged between a blind end of the cell stack and the case, with two ends of each cross beam both being connected to the bearing frame; and the bearing frame applies a fastening force towards an air intake end plate assembly by means of the cross beams, thereby achieving the packaging of the case. The cross beams abut against a second limiting groove provided on a blind end plate assembly, and the blind end plate assembly is limited by means of the bearing frame and the cross beams.

GAS DIFFUSION LAYER, PREPARATION METHOD THEREFOR, AND MEMBRANE ELECTRODE

Resumen de: WO2026077209A1

Disclosed herein are a gas diffusion layer, a preparation method therefor, and a membrane electrode. The gas diffusion layer comprises a substrate, and a microporous layer attached to at least a portion of a surface of the substrate. Raw materials of the microporous layer comprise a phosphorus-containing compound solution; the mass concentration of the phosphorus-containing compound solution is 45% to 47%, and the mass of the phosphorus-containing compound solution is 2% to 5% of the total mass of the raw materials of the microporous layer. In the present application, the phosphorus-containing compound is placed in the gas diffusion layer. Due to the porous structure and good gas permeability of the gas diffusion layer, the phosphorus-containing compound can be fully diffused therein, increasing the opportunities for contact with free radicals, thereby effectively reducing the attack of free radicals on a proton exchange membrane, further protecting the chemical structure of the membrane, and alleviating the speed of decrease of proton conductivity to a certain extent. Therefore, with regard to a membrane electrode containing the described gas diffusion layer, both the durability and the electrical performance of the membrane electrode are considered.

Verfahren zur Herstellung einer elektrochemischen Zelle sowie elektrochemische Zelle

Resumen de: DE102024209903A1

Vorgeschlagen wird ein Verfahren zur Herstellung einer elektrochemischen Zelle, insbesondere einer Elektrolysezelle oder einer Brennstoffzelle, aufweisend mehrere übereinander angeordnete Schichten und/oder Lagen, umfassend eine Membrane (1),gekennzeichnet durch folgende Schrittea) zumindest bereichsweises Aufbringen mindestens eines Sensormaterials (3) auf eine Oberfläche (2) der Membrane (1) und/oder eines die Membrane (1) einfassenden Subgaskets,b) Stapeln der Schichten und/oder Lagen undc) Verbinden der einzelnen Schichten und/oder Lagen, vorzugsweise durch Verpressen oder Verschrauben.Darüber hinaus betrifft die Erfindung ein Steuergerät, das dazu eingerichtet ist, ein Verfahren oder einzelne Schritte eines Verfahrens durchzuführen.

Co-SOEC System mit verbessertem Synthesegasabfuhrabschnitt

Resumen de: AT528776A1

Die vorliegende Erfindung betrifft ein Co-SOEC System (100) zur Erzeugung eines Synthesegases durch Elektrolyse von Kohlenstoffdioxid und Wasser. Dabei weist zu- mindest ein Synthesegasabfuhrabschnitt (31) eine Rohrleitung (40) mit einem durch ein Metalldichtungselement (50) abgedichteten Rohrflansch (44) und ein Isolations- element (60) mit einer zu deren Außenfläche (46) komplementär ausgebildete Innenfläche (64) auf. An dem Isolationselement (60) ist ein zumindest teilweise gasdurchlässiger Entlüftungsabschnitt (66) bereitstellt, für ein Entfliehen einer Gasleckage aus dem Isolationselement (60).

SUBSEA HYDROGEN STORAGE SYSTEM

Resumen de: EP4726251A2

0001 A subsea unit suitable for storing hydrogen gas underwater comprises a weighting base and an array of interconnecting storage tanks on the base. The base may be cast from concrete on a deck of a vessel from which the unit is subsequently launched into water. A protective structure fixed to the base covers the array of tanks. 0002 A restraint system, comprising a series of strap restraints curving around the top of each tank, secures the tanks to the base against buoyant upthrust. The restraints are attached to elongate tensile members extending upwardly from the base, disposed on opposite sides of the underlying tank. The arrangement transfers loads efficiently from each tank to the base on load paths that bypass the other tanks.

AIRSHIP USING HYDROGEN FOR LIFT AND POWER GENERATION

Resumen de: FI132017B1

The present disclosure provides an airship (100) comprising a hydrogen tank (102) to store hydrogen at a first pressure, a pressure regulator (104) to receive a first hydrogen stream (106) from the hydrogen tank (102) and regulate the pressure of the first hydrogen stream (106) to a second level to generate a second hydrogen stream (108), a flow splitter (110) to receive the second hydrogen stream (108) from the pressure regulator (104) and split the second hydrogen stream (108) into a first fraction (114) and a second fraction (118), a fuel cell (112, 302) to collect the first fraction (112) of the second hydrogen stream (108) and generate electrical energy from the collected first fraction (114), and an envelope storage (116, 200, 312) to receive the second fraction (118) of the second hydrogen stream (108) and accumulate the received second fraction (118) of hydrogen to generate a lifting force.

AIRCRAFT POWERPLANT WITH BOOSTED TURBINE ENGINE AND FUEL CELL SYSTEM

Resumen de: EP4726189A1

A powerplant (20) for an aircraft includes a first turbine engine (22), a second turbine engine (24) and a fuel cell system (26). The second turbine engine (24) includes a second engine flowpath (100), a second engine compressor section (96), a second engine combustor section (97 and a second engine turbine section (98). The second engine flowpath (100) extends from a second engine flowpath inlet (114) to a second engine flowpath outlet (116). The second engine flowpath inlet (114) and the second engine flowpath outlet (116) are each fluidly coupled with a flowpath (80) of the first turbine engine (22). The fuel cell system (26) includes a fuel cell, a fuel circuit (142) and an air circuit (144). The fuel circuit (142) extends through the fuel cell and is fluidly coupled with and upstream of a first fuel injector in the second engine combustor section (97). The air circuit (144) extends through the fuel cell and is fluidly coupled with and downstream of a bleed (160) from the second engine flowpath (100).

OPTICAL SENSOR FOR IRON SALT BATTERY OPERATION

Resumen de: EP4726368A1

The invention provides a sensor for an iron salt battery, ISB, the sensor comprising: a light emitting device (10) configured to emit light at one or more wavelengths in the UV-Vis-IR range or one or more sub-ranges within the UV-Vis-IR range; a light detecting device (20) configured to detect light emitted by the light emitting device and having passed through ISB electrolyte (60); and an analyzing device (40) configured to determine at least one of a Fe(II) concentration, a Fe(III) concentration, or a ratio of Fe(III)/Fe(II) concentrations of the ISB electrolyte based on an intensity of the light emitted by the light emitting device and an intensity of the light detected by the light detecting device.

METHOD AND ARRANGEMENT FOR DETERMINING THE CHARGE IMBALANCE OF A REDOX FLOW BATTERY

Resumen de: WO2024256353A1

In order to allow simple and precise determination of a charge imbalance (L) between the electrolyte liquids (5a, 5b) of a redox flow battery (1) over a long period of time, a present correlation (25) between the determined cell voltage (VOCV) and the determined at least one concentration potential (Ea, Eb) is ascertained for the period of time and the correlation (25) is evaluated in order to determine the charge imbalance (L).

HYDROGEN FUEL CELL OBTAINED BY SOLAR-POWERED EQUIPMENT

Resumen de: EP4726077A1

0001 Hydrogen fuel cell obtained by an equipment with ionization by means of solar energy characterized for being constituted by a fuel cell (CD) and a hydrogen generation equipment, where the elements of the set are the following ones: Fuel cell (50), constituted by an outer perimeter profile in cylindrical shape containing two oxidation-resistant sheets, spirally wound on themselves, of variable extension: outer membrane anode (51), inner membrane cathode (52) and between them an electrolyte (53) in closed circuit (57), with an outer cooling device (58) and a catalytic membrane (59) further outside, being located at the end of the membranes (51) and (52) the outputs of electricity (+) (55) and (-) (56) produced and, where the hydrogen is constituted by a hydrogen generator equipment attached.

HOLLOW FIBER MEMBRANE MODULE

Resumen de: EP4725590A1

A hollow fiber membrane module 10 including an outer case 100, an inner case 200, a hollow fiber membrane bundle 300 having a plurality of hollow fiber membranes filled in an annular gap between the outer case 100 and the inner case 200, a first sealing part 410, and a second sealing part 420, the hollow fiber membrane module 10 further including a membrane exterior passage that is formed to pass from an opening of the inner case 200 through a first through hole 230 and reach a second through hole 130 through the exteriors of the plurality of hollow fiber membranes, and a membrane interior passage that is formed to pass through the interiors of the plurality of hollow fiber membranes, wherein, a cylindrical member 500 having a plurality of third through holes 510, each of which becomes a part of the membrane exterior passage, is provided between the hollow fiber membrane bundle 300 and the outer case 100.

CCM, PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2024250391A1

The invention provides the design and preparation of a catalyst coated membrane (CCM) and its application in proton exchange membrane water electrolysis (PEMWE). The CCM contains a proton exchange membrane (PEM) and a multiscale micro/nano structured catalytic layer with ordered arrays. The ordered multiscale micro/nano structured catalytic layer includes a super-thin metal layer, a conventional catalyst/ionomer layer, and metal nanowires grown on the outermost layer. This ordered multiscale micro/nano structured catalytic layer not only improves the interfacial contact between the gas-liquid diffusion layer and the catalytic layer, building a continuous electron transfer path to reduce the internal resistance, but also exhibits super-hydrophilicity, further improving the mass transfer efficiency of membrane electrode.

INCREASING ELECTRICAL POWER OUTPUT OF AN ENERGY SOURCE

Resumen de: WO2024253870A1

Techniques for increasing an atomic surface area of contact surfaces of an energy source to cause the energy source to increase its energy output are disclosed. An energy source includes first and second contact surfaces, where these contact surfaces are structured to facilitate energy transfer between the energy source and a receiving unit. The contact surfaces each have a first surface area state with a first amount of atomic surface area. A process is applied to the contact surfaces to change the first surface area state to a second surface area state. The second surface area state has a second amount of atomic surface area which is more than the first amount of atomic surface area. The applied process may include applying a current or applying a short to the contact surfaces.

ELECTRICAL POWER SOURCE

Resumen de: EP4475235A1

0001 Eine elektrische Energiequelle weist zwei Flussbatterien (1, 2) auf, die jeweils erste und zweite Pole (3 bis 6) aufweisen. Die ersten Pole (3, 4) sind elektrisch miteinander verbunden. An den zweiten Polen (5, 6) ist ein jeweiliges Nutzpotenzial (P1, P2) abgreifbar. Die Nutzpotenziale (P1, P2) weisen, bezogen auf die ersten Pole (3, 4), das gleiche Vorzeichen auf. Die beiden Flussbatterien (1, 2) weisen jeweils einen Reaktionsraum (7, 8) auf, wobei die Reaktionsräume (7, 8) jeweils eine Membran (9, 10) aufweisen, welche den jeweiligen Reaktionsraum (7, 8) in zwei Fluidräume (11 bis 14) trennt. Die Membranen (9, 10) sind für einen Übergang elektrischer Ladungsträger zwischen den Fluidräumen (11 bis 14) des jeweiligen Reaktionsraums (7, 8) permeabel. Die elektrische Energiequelle weist zwei voneinander getrennte Kreisläufe (17, 18) für eine jeweilige Elektrolytflüssigkeit (15, 16) auf. Die Kreisläufe (17, 18) sind geschlossene Kreisläufe, die je einen der Fluidräume (11, 14) der zwei Reaktionsräume (7, 8) miteinander verbinden, so dass die Elektrolytflüssigkeiten (15, 16) alternierend je einen der Fluidräume (11, 12) des einen Reaktionsraums (7) und je einen der Fluidräume (13, 14) des anderen Reaktionsraums (8) durchströmen. Die beiden Kreisläufe (17, 18) weisen eingangsseitig der Reaktionsräume (7, 8) Wärmetauscher (25 bis 28) auf, mittels derer die Elektrolytflüssigkeiten (15, 16) auf eine jeweilige Temperatur (T1, T2) gebracht werden, wobei ein

Fuel cell compressor with integrated heat exchanger

Resumen de: GB2701100A

A system comprising a fuel cell 200 and a rotating assembly comprising: a compressor 100 comprising a compressor wheel 102 and an expander wheel 104 linked by a rotable shaft, and a motor 150 providing torque to the rotating assembly; the compressor comprising a first channel (360, figure 3) channelling air from the compressor wheel to the cathode via a heat exchanger 250 and a second channel (670, figure 5) channelling air exiting the cathode to the expander wheel via the heat exchanger. The heat exchanger may be a section of the second channel enveloping a section of the first channel, and further the second channel may comprise an exterior surface provided with fins, which may be curved. A water separator to remove moisture may be integrated into the second channel, and further the outer walls of the water separator and second channel may be contiguous with one another. (Figure 2)

SEPARATOR, AND ELECTROCHEMICAL CELL

Resumen de: EP4726817A2

0001 A separator according to an embodiment includes a flow channel comprising one or more flow-channel grooves provided between flow-channel walls. One or more protrusions are provided on the flow-channel walls.

A method of recycling a waste ionomer material

Resumen de: GB2701070A

A method of recycling a waste ionomer material contaminated with one or more metal cation contaminants, whereby the ionomer material is treated with a chelation agent. Preferably the ionomer is perfluorosulfonic acid, which is preferably derived from a membrane used in a fuel cell or electolyser. The chelating agent may be chosen from ethylenediaminetetraacetic acid (EDTA), diethyenetriaminepentaacetic acid (DTPA), or hydroxyethylenediaminetriacetic acid (HEDTA). The chelating agentis used to remove metal contaminants, preferable actions of Fe, Cr, Ni Zn, Sn, Pb, Mo, Mn or Co. The chelating agent may be applied before or after the ionomer is dispersed in either aqueous solvent, alcohol solvent or a water/alcohol mix. Fig 1

연료 전지 설계, 장치 및 제조 방법

Resumen de: WO2025136457A2

A advanced fuel cell (AFC) assembly comprises a variety of features improving its performance, reliability, durability, and manufacturability include an ion exchange membrane such as a proton exchange membrane comprising polymers of perfluorinated sulfonic acid or hydrocarbon compounds supported by an inert endoskeletal structure of greater mechanical strength preventing deformation damage from handling, temperature cycling, and ionomer swelling and contraction from humidity cycling. The endoskeleton may be attached to wider exoskeletal pillars used for singulating one membrane from another after fabrication and to a thicker handle used to transport the membrane during processing prior to separation. Other AFC features include a asymmetric catalyst coated membrane inhibiting fuel cross over, oxygen back streaming, and CO atmospheric poisoning; a graded heterogenous gas diffusion layer for enhanced charge and gas transport; and a self-aligned gasket-less assembly with integrated sealant preventing gas leakage.

CAPACITY RECOVERY METHOD FOR VANADIUM REDOX FLOW BATTERY

Resumen de: EP4726818A1

0001 Disclosed is a method for recovering the battery capacity of a vanadium redox flow battery, comprising: S100: determining the overall valence of vanadium ions in electrolyte reservoirs of the battery after the discharge capacity of the battery attenuates, and charging the battery; S200: adding a reducing agent to a positive electrolyte reservoir of the battery; S300: allowing self-circulation in the positive electrolyte reservoir of the battery, so as to complete a chemical reduction reaction; S400: determining the overall valence of the vanadium ions in the electrolyte reservoirs of the battery again, and determining the residue of the reducing agent; and/or S500: replenishing the reducing agent in the positive electrolyte reservoir of the battery, and repeating steps S300 to S400 until the mean value of the overall valence of the vanadium ions in the electrolyte reservoirs of the battery returns to 3.5. By means of using a liquid reducing agent, feeding is simplified, and the reaction rate of the reducing agent with a positive electrolyte having a high content of pentavalent vanadium is fast. The extent of the valence-decreasing reaction of the reducing agent and the residual amount of the reducing agent are strictly monitored, so that the risk of the performance of a stack being affected due to the residue of the reducing agent is reduced.

BIPOLAR PLATE FOR AN ELECTROCHEMICAL CELL

Resumen de: EP4726816A1

Bipolar plate (10) for an electrochemical cell, the bipolar plate comprising:- one main sheet (12) defining a plane, said horizontal plane (H), and- at least one spring sheet (14) shaped such that it defines:. upper peaks (20) and lower peaks (40) alternately distributed along the horizontal plane (H), the spring sheet (14) being deformable between a compressed state and an uncompressed state such that the distance in the vertical direction between the upper peaks (20) and the lower peaks (40) is variable,. connection sections (60) connecting one upper peak (20) to one lower peak (40),each connection section (60) includes one horizontal part (62) which is parallel to the horizontal plane (H) when the spring sheet (14) is in the uncompressed state, the horizontal parts (62) being positioned between the upper (20) and the lower (40) peaks with respect to the vertical direction.

用于电机的功率源组件

Nº publicación: CN121863967A 14/04/2026

Solicitante:

通用电气马尔马拉技术中心工程服务有限公司通用电气德国控股有限公司

Resumen de: EP4726945A1

A power source assembly (200) includes a plurality of strings (208) electrically connectable to a load (204). Each of the plurality of strings includes a fuel cell module (210) and a DC/DC converter (212) electrically connected to the fuel cell module. Each of the plurality of strings is arranged in parallel to each other of the plurality of strings.