Alerta

AN ELECTRODE, A METHOD OF PRODUCING IT, AND A FUEL CELL WITH SUCH ELECTRODE

Resumen de: WO2026008114A1

An electrode, a method of producing it, and a fuel cell with such elec- trode In a method of producing electrodes (20), for example for fuel cells, an aqueous coating (15, 16) is applied onto a microporous substrate (10) for a gas diffusion layer. The coating comprises a catalyst as well as a first polymeric binder that is only water soluble below a first temperature T1 and a second polymeric binder that is only water soluble above a second temperature T2, wherein T2>T1. When preparing the coating, the first and second polymeric binders are added to an aqueous base in separate stages, where the temperature of the aqueous base is below T1 when adding the first polymeric binder and above T2 when adding the second polymeric binder. By heating the coating, the two polymers are cross linked, which prevents dissolution of the two polymeric binders.

BATTERY CELL, FUEL CELL STACK, AND VEHICLE

Resumen de: WO2026007333A1

The present application relates to the technical field of fuel cells, and discloses a battery cell, a fuel cell stack, and a vehicle. The battery cell comprises: a negative electrode sheet and a positive electrode sheet arranged in parallel; and a membrane electrode arranged between the negative electrode sheet and the positive electrode sheet, and at least partially arranged obliquely with respect to the negative electrode sheet and the positive electrode sheet, so that the flow areas of reaction medium cavities formed between the membrane electrode and the negative electrode sheet and between the membrane electrode and the positive electrode sheet decrease in the flow direction of reaction media.

METHODS OF MANUFACTURE OF TEMPLATES WITH IrNi NANOBRANCHES (NBS), IrNiCu@Cu NANOSTRUCTURES AND ELECTROCATALYSTS COMPRISING IrNiCu@Cu NANOSTRUCTURES, AND APPLICATIONS THEREOF

Resumen de: US20260009160A1

The present invention is concerned with the epitaxial growth of unconventional 2H Cu on hexagonal close-packed (hcp) IrNi template, leading to forming of IrNiCu@Cu nanostructures as electrocatalyst. IrNiCu@Cu-20 shows superior catalytic performance, with NH3 Faradaic efficiency (FE) of 86% at −0.1 (vs reversible hydrogen electrode (RHE)) and NH3 yield rate of 687.3 mmol gCu−1 h−1, far better than common face-centered cubic (fcc) Cu. IrNiCu@Cu-30 and IrNiCu@Cu-50 covered by hcp Cu shell display high selectivity towards nitrite (NO2−), with NO2− FE above 60% at 0.1 (vs RHE). IrNiCu@Cu-20 has the optimal electronic structures for NO3RR due to the highest d-band center and strongest reaction trend with the lowest energy barriers. The electrocatalysts are effective in electrochemical nitrate reduction NO3RR.

SYSTEMS AND METHODS FOR CONTROLLING COLD STARTUP OF A FUEL CELL

Resumen de: US20260008385A1

Systems and methods described herein relate to controlling cold startup of a fuel cell. In one embodiment, a system for controlling cold startup of a fuel cell detects that a fuel cell and a high-voltage battery are at a temperature below a predetermined threshold temperature below which discharging power from the high-voltage battery is permitted and charging the high-voltage battery is not permitted. The system activates a battery heater and powers the battery heater using the high-voltage battery. The system starts up the fuel cell by drawing additional power from the high-voltage battery. The system consumes, in the battery heater, power generated by the fuel cell during startup until the fuel cell is fully started up to avoid charging the high-voltage battery while charging the high-voltage battery is not permitted.

METHOD FOR PRODUCING LAYERED SHEET STRUCTURES FROM TITANIUM OR TITANIUM ALLOYS FOR USE IN ELECTRODES OF PEM-TYPE ELECTROLYZERS AND/OR FUEL CELLS

Resumen de: US20260008102A1

A method for producing layered sheet structures from titanium or titanium alloy metal for use in or as electrodes of PEM-type electrolyzers or fuel cells. The method includes providing a first sheet-like green part with voids or open spaces, where first sheet-like green part is a green part of a first metal sheet layer. The method alternatively includes providing a first metal sheet layer comprising a metallic frame structure with voids or open spaces. The method further includes providing a second sheet-like green part, where second sheet-like green part is a green part of a second metal sheet layer, which is porous. The method alternatively includes providing a second metal sheet layer, which is porous. The method further includes forming a stack with a combination of the first and second sheet-like green part and the first and second metal sheet. The method further includes bonding the metal sheet layers.

AIRCRAFT PROPULSION SYSTEM AND METHOD

Resumen de: US20260008551A1

The present invention relates to a propulsion system for providing controllable propulsion comprising: a fuel cell arrangement (210) for generating electrical energy; a gas generator (250) comprising a compressor (256), a combustor (254) and a turbine (252), wherein the output from turbine is arranged to provide propulsion from rotational movement; a hydrogen source (212) for providing hydrogen to the fuel cell arrangement and the gas generator; an oxygen source (214) for providing oxygen to the gas generator (250), wherein, in use, the gas generator is used selectively to provide electrical energy for additional propulsion.

A FUEL CELL SYSTEM HAVING A SECONDARY HYDROGEN STORAGE TANK TO AVOID SHUTTING DOWN THE FUEL CELL SYSTEM DURING REFUELING

Resumen de: US20260009503A1

A method in a continuous hydrogen delivery system having a plurality of primary hydrogen fuel tanks and at least one primary hydrogen fuel tank of the plurality of primary hydrogen fuel tanks acting as a secondary hydrogen fuel tank during refueling to maintain availability of hydrogen to fuel consumers during refueling of the primary hydrogen fuel tanks. The method further includes responsive to determining that the primary hydrogen fuel tanks is set up for refueling: before the refueling process begins: disconnecting the primary hydrogen fuel tanks from the primary fuel consumer while maintaining a connection of the secondary hydrogen fuel tank to at least one of the primary fuel consumer and the secondary fuel consumer. The method further includes after the tanks have been refueled: connecting the primary and the secondary hydrogen fuel tanks to at least one of the primary fuel consumer and the secondary fuel consumer.

CHECK VALVE, METHOD OF OPERATING A CHECK VALVE AND SOLENOID ASSEMBLY

Resumen de: US20260009476A1

The invention relates to a check valve (1) having a solenoid assembly (2), which comprises a solenoid actuator (12) having a solenoid (6) and an armature (7), which is pre-tensioned by a spring element (9) with a pre-tensioning force acting in a closing direction, wherein the armature (7) is movable along an axis of movement (10) in an opening direction to open the check valve (1) via a magnetic flux acting against the pre-tensioning force of the spring element (9), to open a fluidic connection between a fluid inlet (4) and a fluid outlet (5), which is blocked without the magnetic force, by a magnetic force pulling on the armature (7).In order to functionally improve the check valve (1), the solenoid assembly (2) is designed in such a way that a selectively asymmetric magnetic force distribution results with respect to the axis of movement (10) of the armature (7).

ABNORMALITY DETERMINATION DEVICE AND ABNORMALITY DETERMINATION METHOD

Resumen de: US20260009690A1

An abnormality determination device includes: a first gas density acquisition unit that acquires a first gas density, which is a density of a gas in a gas reservoir unit when the gas reservoir unit has been filled with the gas via a gas filling path; a second gas density acquisition unit that acquires a second gas density, which is a density of the gas in the gas reservoir unit when the gas is supplied from the gas reservoir unit via a gas supply path; and an abnormality determination unit that determines whether or not a first pressure sensor or a second pressure sensor is abnormal, based on the first gas density acquired by the first gas density acquisition unit and the second gas density acquired by the second gas density acquisition unit.

SYSTEM AND METHOD FOR PROVIDING SUPPLEMENTAL POWER AND COOLING TO ONE OR MORE SERVER RACKS

Resumen de: US20260013081A1

Described herein are systems and methods for providing supplemental power and cooling to an electrical load, such as one or more server racks. In one example, a system includes a secondary power source that emits water as a by-product of operation and is connected to an electrical load that receives power from a primary power source and is cooled by a water-cooling system. The secondary power source is selectively configured to provide supplemental power to the electrical load when a condition has been met, wherein water produced during the operation of the secondary power source is provided to the water-cooling system.

FUEL CELL SYSTEM INCLUDING VALVED ANODE TAILGAS OXIDIZER CONDUIT ASSEMBLY

Resumen de: US20260011761A1

A fuel cell system includes a hotbox, a stack of fuel cells located in the hotbox and configured to generate power and an anode exhaust, an anode tail gas oxidizer (ATO) located in the hotbox and configured to oxidize a portion of the anode exhaust, a recycling conduit located outside of the hotbox and configured to receive the anode exhaust output from the hotbox, a fuel conduit assembly configured to provide fuel to the stack, and an ATO conduit assembly concentrically surrounding the fuel conduit assembly and configured to receive a first portion of the anode exhaust diverted from the recycling conduit and to provide the first portion of the anode exhaust to the ATO.

SYSTEMS AND METHODS OF USING PURE HYDROGEN AS FUEL IN A TURBOCHARGED FUEL CELL

Resumen de: US20260011760A1

Provided herein are systems and methods for using pure hydrogen as fuel in a turbocharged fuel cell. A vehicle may include a storage configured to store pressurized hydrogen, a fuel cell, a catalytic converter, and a turbo compressor. The fuel cell includes an anode loop fluidically coupled to the storage and configured to receive the pressurized hydrogen therefrom, and a cathode loop configured to receive oxygen. The catalytic converter, arranged downstream from the anode loop, recovers excess hydrogen from the pressurized hydrogen used by the anode loop and recovers excess oxygen from the oxygen used by the cathode loop. The turbo compressor includes an expander to recover heat from the catalytic converter.

FLOW BATTERY BUBBLE DETECTION SYSTEM

Resumen de: US20260011759A1

A flow battery bubble detection system includes a flow battery having a cathode and an anode circulation flow path, an electrochemical cell and an exchange membrane. A portion of the cathode or the anode circulation flow path is formed as a light-transmissible flow path section. A detection device includes a light source, a receiving unit and a detection unit. The light source and receiving unit are connected to the detection unit and respectively arranged on opposite sides of the light-transmissible flow path section so that a detection light of a single wavelength emitted from the light source travels through the light-transmissible flow path section and is received by the receiving unit. The receiving unit outputs a detection voltage signal to the detection unit corresponding to the received detection light. The detection unit detects bubbles in the electrolyte flowing through the light-transmissible flow path section based on the detection voltage signal.

Method for Manufacturing Fuel Cell Separator and Fuel Cell Separator

Resumen de: US20260011754A1

To suppress a situation in which a separator is deformed due to pre-pressing performed on bead parts, a manufacturing method is provided that includes a press forming step of forming a first separator and a second separator by performing press forming on metal materials. Next, in a joining step, the first separator and the second separator are joined such that bead parts and a plurality of bridge parts face away from bead parts and a plurality of bridge parts. The manufacturing method also includes a pre-pressing step of plastically deforming the bead parts of the first separator and the second separator by applying a preload to the bead parts, the first separator and the second separator being joined together. In this pre-pressing step, deformation is suppressed at the plurality of bridge parts and at portions on bottom parts between the plurality of bridge parts.

High-Efficiency Integrated Absorption Cooling System Utilizing Fuel Cell Exhaust Heat

Resumen de: US20260011762A1

The absorption cooling system of the present invention includes a fuel cell unit (100) that discharges exhaust gas generated during power generation and an absorption cooling unit (200) that utilizes the exhaust gas as a heat source. The absorption cooling unit (200) includes an absorption chiller (10) that receives the exhaust gas as a heat source; an upper cooling tower (30) that lowers the temperature of the cooling water heated by the absorption chiller; a cooling water pump (40) that controls the flow of cooling water; a chilled water pump (50) that controls the flow of chilled water cooled by the absorption chiller; a system control unit (90) that controls the operation of the absorption cooling unit (200); a bypass valve (60) installed in the bypass pipe (12) that controls the external discharge of the exhaust gas supplied from the fuel cell unit (100); an exhaust gas introduction valve (70) installed in the exhaust gas introduction pipe (13) that controls the supply of the exhaust gas to the absorption chiller (10); and an exhaust gas intake device (20) that provides pressure so that the exhaust gas can be supplied to the absorption chiller (10).

SYSTEM FOR A METHANOL-BASED FUEL CELL

Resumen de: US20260011755A1

Provided herein are systems and methods for using a methanol solution in a fuel cell. A vehicle may include a storage configured to store fuel; a reformer configured to produce hydrogen from the fuel received from the storage; and a fuel cell. The fuel cell may include an anode loop fluidically coupled to the reformer and configured to receive the hydrogen therefrom; and a cathode loop configured to receive oxygen. A catalytic converter arranged downstream from the fuel cell may be configured to recover excess hydrogen from the hydrogen used by the anode loop and to recover excess oxygen from the oxygen used by the cathode loop. The catalytic converter may further supply heat to an expander of a turbo compressor through the reformer.

FUEL-CELL EXHAUST SYSTEM, FUEL CELL SYSTEM AND METHOD FOR REDUCING THE WATER CONTENT IN FUEL-CELL EXHAUST GAS

Resumen de: US20260011757A1

A fuel-cell exhaust system for a fuel cell system includes a heat exchanger arrangement with a first heat exchanger area, through which fuel-cell exhaust gas can flow, and a second heat exchanger area, through which cooling gas can flow, the first heat exchanger area and the second heat exchanger area being in heat transfer interaction for transferring heat from the fuel-cell exhaust gas to the cooling gas, and a mixing arrangement for receiving cooled fuel-cell exhaust gas discharged from the first heat exchanger area and heated cooling gas discharged from the second heat exchanger area in a mixing volume for producing a mixture of cooled fuel-cell exhaust gas and heated cooling gas and for discharging the mixture.

Fuel Cell System

Resumen de: US20260011756A1

Proposed is a fuel cell system, including a fuel cell stack connected to an intake line and an exhaust line, an air compressor connected to the intake line, and a heat energy storage part provided between the fuel cell stack and the air compressor on the intake line and absorbing and storing heat from the air on the intake line through a thermochemical reaction and releasing moisture into the air on the intake line.

SYSTEMS AND METHODS OF FAST START-UP AND WARM-UP IN TURBOCHARGED FUEL CELLS

Resumen de: US20260011758A1

Provided herein are systems and methods for improving warm-up times for fuel cells. A method of the present disclosure includes detecting, by one or more processors, a warm-up condition of a fuel cell, and controlling, by the one or more processors, a first valve and a second valve, to cause pressurized oxygen and pressurized hydrogen to be supplied to a catalytic converter arranged downstream from the fuel cell, to cause the catalytic converter to produce heat to be transferred to a coolant loop of the fuel cell, during the warm-up condition.

ELECTROCHEMICAL CELL DEVICE, MODULE, AND MODULE HOUSING DEVICE

Resumen de: US20260011765A1

An electrochemical cell device includes a plurality of electrochemical cells arranged in a first direction, and including a first cell and a second cell. The plurality of electrochemical cells each include an element portion, a support body, and a fixing material. The support body supports the element portion. The fixing material fixes the element portion and the support body. The first cell is different from the second cell in a position of the fixing material when viewed in a plan view in the first direction.

INTEGRATED FUEL CELL SYSTEM INCLUDING INDEPENDENTLY CONTROLLABLE COLUMNS

Resumen de: US20260011763A1

A system includes a plurality of columns of fuel cells located in a hotbox, a direct current (DC) bus, a plurality of DC/DC converters, each DC/DC converter being electrically connected to a respective column of fuel cells and to the DC bus, and a controller configured for independently controlling the columns of fuel cells. The controller is configured to activate a first column of fuel cells by activating fuel flow to the first column of fuel cells and activating a first DC/DC converter of the plurality of DC/DC converters electrically connected to the first column of fuel cells while a second column of fuel cells is already active.

SOFC FOR THE COMBINED PRODUCTION OF ELECTRICITY AND NITRIC OXIDE

Resumen de: US20260011764A1

An SOFC for the combined production of electricity and a nitric oxide (NO) containing gas stream, wherein NO represents at least 10% by weight of the NO containing gas stream, comprising: an anodic side comprising a solid gas-permeable anode, a gas inlet and a gas outlet;a source of ammonia gas in fluid communication with the gas inlet at the anodic side;a cathodic side comprising a solid gas-permeable cathode, a gas inlet and a gas outlet;a fully dense electrolyte, separating the anodic side from the cathodic side;means for heating the SOFC to a temperature ranging from 550 to 800° C.; and means for collecting a current flowing between the anodic side and the cathodic side.

再生型燃料電池システム

Resumen de: JP2026002504A

【課題】燃料電池の発電に使用される水素および酸素の減少を抑制できる技術を提供する。【解決手段】再生型燃料電池システムは、燃料電池と、水を貯蔵する水タンクと、水素と酸素とを結合させて水を生成する再結合器と、水タンクから供給された水を電気分解して燃料電池の電気化学反応に用いられる水素と酸素とを生成する水電解装置と、を備え、水タンクは、燃料電池から排出された水素を含む水を貯蔵する第１領域と、燃料電池から排出された酸素を含む水を貯蔵する第２領域と、第１領域と第２領域とを連通する連通部と、を備え、再結合器は、連通部に配置されている。【選択図】図３

燃料電池システムにおける液体の浸入抑制構造

Resumen de: JP2026002742A

【課題】二部材間のシール箇所への液体の浸入を抑制する構造を提供すること。【解決手段】水素供給装置は、外周面２３ａを有する流入ポート２０と、流入ポート２０の外周面２３ａを覆うように上方から組み付けられる被嵌合部３０と、流入ポート２０と被嵌合部３０との間をシールするように流入ポート２０の外周面２３ａに形成される凹部２１に設けられる環状のシール部材２２を有する。被嵌合部３０は、凹部２１に外周側から被せられる被せ部３１と、被せ部３１よりも下方に延びる延出部４０を有する。延出部４０の内周面４５と流入ポート２０の外周面２４ａとの間に、延出部４０の外周面３３より径方向の外側にある外部空間５２と連通する第１隙間５０が形成される。【選択図】図２

燃料ガス貯蔵システム

Nº publicación: JP2026002472A 08/01/2026

Solicitante:

トヨタ自動車株式会社

Resumen de: US2025389392A1

A fuel gas storage system includes a first tank including a first supply valve and a first communication valve. The fuel gas storage system includes a second tank including a second supply valve and a second communication valve. The fuel gas storage system includes a supply pipe connecting the first supply valve and the second supply valve to an external device. The fuel gas storage system includes a communication pipe connecting the first communication valve and the second communication valve to each other. The fuel gas storage system includes a control unit configured to be able to control an opened-closed state of each of the first supply valve, the second supply valve, the first communication valve, and the second communication valve. The control unit is configured to be able to execute specific control.