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HYDROGEN GENERATION DEVICE

Resumen de: US20260307031A1

A hydrogen generation device includes a hydrogen generator body, a secondary coil, an eddy current generating unit, and at least one support member. The hydrogen generator body includes a chamber. One end part of the hydrogen generator body is provided with a first inlet for allowing a first substance to enter the chamber and a second inlet for allowing a second substance to enter the chamber. The other end part of the hydrogen generator body is provided with an outlet and an exhaust port. The secondary coil is wound around the exterior of the hydrogen generator body. The eddy current generating unit is disposed in the chamber at a position corresponding to the secondary coil. The support member has plural holes and is disposed in the chamber. The eddy current generating unit penetrates through the support member and is arranged in the chamber by the support member.

ELECTROLYSER MODULES AND STRUCTURAL PLATES FOR ELECTROLYSER MODULES

Resumen de: WO2026207635A1

An electrolyser module is provided comprising a plurality of stacked structural plates. Each structural plate has opposite end faces and an outer rim. Each structural plate defines a cell chamber opening and at least first and second degassing chamber openings extending though said structural plate between opposite end faces. The structural plates are stacked between opposite end pressure plates to form at least first and second degassing chambers and a series of cell chambers. The electrolyser module may further comprise at least one external reinforcing structure extending about the periphery of at least one of said structural plates to mechanically support said structural plates against stress induced by an internal pressure of said electrolyser module. Structural plates for electrolyser modules are also provided.

複極式電解槽用電解枠、アルカリ水電解槽及び水素の製造方法

Resumen de: JP2026161444A

【課題】本発明の目的は、高電流密度運転時の電解槽内圧の変動を抑制し、時間当たりの水素製造量が増加し、再生可能エネルギー等の変動電源への対応が可能な電解枠を提供することにある。【解決手段】本発明の複極式電解槽用電解枠は、陽極室及び陰極室と、前記陽極室と前記陰極室との間に設けられた隔壁と、電極室の上側に設けられ且つ前記電極室の上側の全長にわたって延びる気液分離室と、を備え、気液分離室が、吐出口と孔を有し、有孔底部壁と、仕切壁と、を備え、前記仕切壁は、前記有孔底部壁の有孔域の上に形成された第１通路Ａと、前記有孔底部壁の非有孔域の上に形成された第２通路Ｂとに、前記気液分離室を仕切っており、前記仕切壁は、前記気液分離室が延びる方向に前記一端に対して反対側にある端の近傍に隙間を有する、ことを特徴とする。【選択図】図４

PLASMONICALLY DRIVEN ELECTROCHEMICAL CATALYST STRUCTURE

Resumen de: WO2026212178A1

The present application relates to: a plasmonically driven electrochemical catalyst structure; and an ammonia oxidation system and a wastewater electrolysis system, each comprising same. The electrochemical catalyst structure according to embodiments of the present application and the ammonia oxidation system comprising same may provide an environment favorable for ammonia oxidation reaction (AOR) activity, as plasmonic activity regulates the arrangement of interfacial water molecules and alters the hydrogen-bonding network.

CONTROL METHOD FOR ADJUSTING THE UTILISATION OF AN ELECTROLYSIS SYSTEM

Resumen de: WO2026209255A1

The present invention relates to a control method for adjusting the utilisation of an electrolysis system (1) by means of a central system controller (5), wherein the system controller (5) is designed such that at a time t0, a maximum available capacity Lplant of the electrolysis system (1) can be set, within the physical limits Lmin to Lmax of the electrolysis system (1), as a first target value for first discrete time periods of a time interval t1 to t2, and such that at time t0, the utilisation of the electrolysis system (1) Splant can be set within the maximum available capacity Lplant, as a second target value for second discrete time periods of a time interval ta to t2 wherein t2 > t1 ≥ t0, and wherein an electrical power or an amount of hydrogen is specified to the system controller (5) as the first and the second target value.

Elektrolyseur und Verfahren und Betrieb eines Elektrolyseurs

Resumen de: DE102025113543A1

Die Erfindung betrifft einen Elektrolyseur (1) zur Erzeugung von Wasserstoff (H2) und Sauerstoff (O2) als Produktgase, mit einem Elektrolysemodul (3) und mit einem Gas-Separator (5), der zur Phasentrennung des Produktgases von Wasser ausgelegt ist, bei der das Elektrolysemodul (3) über eine Produktstrom-Leitung (7) für das Produktgas an den Gas-Separator (5) angeschlossen ist, und bei dem eine Rückführleitung (9) mit einer Förderpumpe (13) für das abgetrennte Wasser vorgesehen ist, die den Gas-Separator (5) mit dem Elektrolysemodul (3) verbindet. Dabei ist ein Schwungradspeicher (13) vorgesehen, der mit der Förderpumpe (11) gekoppelt ist, so dass bei Störung der Energieversorgung ein Weiterbetrieb der Förderpumpe (11) über die im Schwungradspeicher (13) gespeicherte Rotationsenergie sichergestellt ist.Die Erfindung betrifft weiterhin ein Verfahren zum Betrieb eines Elektrolyseurs (1) mit einem Elektrolysemodul (3). Bei einer Störung der Stromversorgung wird ein unterbrechungsfreier Weiterbetrieb der Förderpumpe (11) dadurch erreicht, dass im Schwungradspeicher (13) gespeicherte Rotationsenergie als elektrische Energie zurückgewonnen und zum Weiterbetrieb der Förderpumpe (11) eingesetzt wird.

GAS DIFFUSION SUBSTRATE, ELECTROLYTIC CELL ELECTRODE AND CARBON DIOXIDE ELECTROLYSIS DEVICE INCLUDING SAME, AND METHOD FOR MANUFACTURING SAME

Resumen de: WO2026211917A1

The present invention addresses the problem of providing: a gas diffusion substrate used for electrolyzing carbon dioxide gas, the gas diffusion substrate suppressing the generation of a side reaction product (H2) over time (the ratio (C2H4/H2) of a main reaction product to the side reaction product is maintained over a long period of time); a method for manufacturing the same; an electrolytic cell electrode including the gas diffusion substrate; and a carbon dioxide electrolysis device including the electrolytic cell electrode. Provided are: a gas diffusion substrate which is used for electrolyzing carbon dioxide gas and is obtained by laminating a water-repellent porous layer (MPL) on at least one surface of a porous carbon electrode substrate (GDL), the gas diffusion substrate having a gas permeability in the through-plane direction from the GDL side of 1.0-3.0 mL/cm2·hr·Pa and a liquid permeation resistance from the MPL side of 180 min or more; a method for manufacturing the same; an electrolytic cell electrode including the gas diffusion substrate; and a carbon dioxide electrolysis device including the electrode for an electrolytic cell.

SYSTEM AND PROCESS FOR HYDROGEN PRODUCTION

Resumen de: WO2026210344A1

The present invention relates to a system (100) for the production of hydrogen by liquid-phase water hydrolysis at temperatures even exceeding 100 °C and to its use in a hard-to-abate plant, namely a cement, steel, chemical, or petrochemical plant, or in a geothermal or solar plant, by utilizing the waste heat from said plant. The present invention also relates to a process for the production of hydrogen by water electrolysis and to a plant configured to use the waste heat from said plant as heating means of a system (100) for the production of hydrogen by electrolysis of water.

ELECTROLYZER SYSTEM FOR HYDROGEN PRODUCTION FROM A WASTEWATER FEEDSTOCK AND METHOD FOR OPTIMIZING SAME

Resumen de: WO2026207618A1

An electrolyzer system and associated design and optimization methods are disclosed for producing hydrogen gas from an impure wastewater feedstock. Electrode temperature mapping and analysis of thermoelectric phenomena, including Joule/Thomson effects in homogeneous conductive electrodes such as 316L stainless steel, are used to identify localized oxidation and reduction regions and correlate them with gas bubble nucleation and detachment. These findings, together with electrode material characteristics and operating conditions, are incorporated into computational fluid dynamics modeling of two-phase gas–liquid flow to predict electrode and flow-field configurations that improve bubble removal, reduce overpotential and resistive losses, and enhance heat and mass transfer. In some embodiments, optimized electrodes include microchannel networks configured to direct electrolyte toward preferential reaction sites and promote gas disengagement. The resulting systems can achieve energy consumption and hydrogen production rates using contaminated wastewater comparable to systems operating on purified, demineralized water.

WATER ELECTROLYSIS SYSTEM, WATER ELECTROLYSIS FACILITY, AND HIGH-PERFORMANCE PURIFYING METHOD

Resumen de: WO2026210989A1

A water electrolysis system (50) comprises: a water electrolysis device (11); a first heat exchanger (16b) that cools hydrogen generated in the water electrolysis device (11) and performs dehumidification; a second heat exchanger (51a) that exchanges heat between the hydrogen after dehumidification in the first heat exchanger (16b) and hydrogen reaching the first heat exchanger (16b) from the water electrolysis device (11); and a catalyst (51b) that removes oxygen contained in the hydrogen, which has increased in temperature due to the heat exchange in the second heat exchanger (51a).

DETECTION OF DAMAGE TO COMPONENTS WITHIN AN ELECTROLYZER STACK DURING OPERATION

Resumen de: US20260308789A1

An electrolyzer producing hydrogen. According to an aspect, the electrolyzer contains a stack producing a first fluid containing oxygen and a second fluid containing hydrogen upon application of voltage across the stack. A first pipe carries the first fluid away from the stack. A sensor is operable to send vibration signals representing a measure of vibrations of the first pipe when carrying the first fluid away from the stack, and a detection system operates to detect damage to one or more components within the stack based on the vibration signals.

MANAGEMENT DEVICE

Resumen de: WO2026211543A1

A management device (7) comprises: a unit price determination unit (11) that determines whether or not a unit price of electric power is at least a prescribed value; a control unit (13) that outputs a control command for controlling an electrolysis device (3) which generates hydrogen gas and oxygen gas by operating on the basis of electric power, and a hydrogen storage and supply device (4) which is capable of storing and supplying hydrogen gas; and a boiler operation determination unit (12) that determines whether or not it is necessary to operate a hydrogen boiler (5) that burns hydrogen gas and oxygen gas to heat a water tube and generate steam. When it is determined that a first condition is satisfied, the first condition being that the unit price is less than the prescribed value and operation of the hydrogen boiler (5) is unnecessary, the control unit (13) outputs the control command so as to bring about a first state in which a portion of the hydrogen gas generated in the electrolysis device (3) is supplied to hydrogen-using equipment (6) and a portion of the hydrogen gas generated in the electrolysis device (3) is stored in the hydrogen storage and supply device (4). When it is determined that a second condition is satisfied, the second condition being that the unit price is equal to or greater than the prescribed value and operation of the hydrogen boiler (5) is necessary, the control unit (13) outputs the control command so as to bring about a second state in which

LEAKAGE DETECTION METHOD, LEAKAGE DETECTION DEVICE, AND HYDROGEN PRODUCTION FACILITY

Resumen de: WO2026211560A1

Provided is a leakage detection method for an electrolytic solution from a water electrolysis device. The water electrolysis device includes an electrolytic cell for storing the electrolytic solution, a gas-liquid separator to which a gas generated in the electrolytic cell is guided, and a circulation line for circulating the electrolytic solution between the electrolytic cell and the gas-liquid separator. The method comprises: a step for acquiring an integrated estimated value, which is an integrated value from a reference time point of an estimated value of a supply amount of pure water to the electrolytic solution; a step for acquiring an integrated measured value, which is an integrated value from the reference time point of a measured value of the supply amount of pure water to the electrolytic solution; and a leakage detection step for detecting leakage of the electrolytic solution from the water electrolysis device on the basis of a comparison between a threshold value determined on the basis of the integrated estimated value and the integrated measured value.

WATER ELECTROLYSIS SYSTEM, WATER ELECTROLYSIS FACILITY, AND METHOD FOR CONSTRUCTING WATER ELECTROLYSIS FACILITY

Resumen de: WO2026210986A1

This water electrolysis system (10) comprises: a hydrogen-side device that includes a water electrolysis device (11) disposed in a housing (C1); a partition wall (17) that demarcates a predetermined region (R) in which the hydrogen-side device is disposed; and an exhaust device (18a) that is disposed in the upper part of the predetermined region (R) and that performs ventilation by discharging a gas in the predetermined region (R) to the outside of the housing (C1). The upper end of the partition wall (17) reaches the ceiling surface of the housing (C1), at least a part of the lower end of the partition wall (17) is separated from the floor surface of the housing (C1) to communicate the inside and the outside of the predetermined region (R) with each other, and the amount of ventilation by the exhaust device (18a) is set on the basis of a planar cross-sectional area obtained by horizontally cutting the predetermined region (R) and a ventilation speed satisfying a dilution degree condition related to ventilation performance.

POWER SUPPLY SYSTEM FOR HYDROGEN ELECTROLYZER MODULE AND CONTROL METHOD THEREOF

Resumen de: WO2026209152A1

A power supply system (100) for an electrolyzer module (201) is provided. The electrolyzer module (201) comprises at least two electrolyzers (1, 2) connected in series and operated with a main current provided by a main converter (10) comprised in the power supply system (100). The power supply system (100) further comprises a first partial power circuit (21) coupled to a first electrolyzer (1) of the at least two electrolyzers (1, 2); a second partial power circuit (22) coupled to a second electrolyzer (2) of the at least two electrolyzers (1, 2); and a controller (30) configured to operate at least one of the first partial power circuit (21) and the second partial power circuit (22) to adjust the main current flowing through at least one of the first and second electrolyzers (1, 2), based on respective degrees of performance degradation of the first and second electrolyzers (1, 2).

STEAM ELECTROLYSIS APPARATUS AND METHOD FOR OPERATING THE SAME

Resumen de: WO2026211282A1

Provided is a steam electrolysis apparatus capable of heating a cell stack so as to have a desired temperature distribution. The steam electrolysis apparatus includes: a cell stack group (101G) in which electrolysis cells composed of a hydrogen electrode, an electrolyte, and an oxygen electrode are electrically connected via an interconnector; and a heating tube (3) that heats the cell stack group (101G). A portion of the heating tube (3) is heated by a high-temperature heat medium and the other portion is heated by a heat medium having a lower temperature than the high-temperature heat medium so as to approach a target temperature distribution (T1) that is a target of the cell stack group (101G).

STEAM ELECTROLYSIS APPARATUS

Resumen de: WO2026211281A1

The present invention provides a steam electrolysis apparatus capable of heating a cell stack as uniformly as possible. The steam electrolysis apparatus comprises: a cell stack group (101G) including a plurality of cell stacks arranged side by side, each cell stack including electrolysis cells electrically connected via interconnectors, each electrolysis cell comprising a hydrogen electrode, an electrolyte, and an oxygen electrode; and a heating tube (3) provided outside the cell stack group (101G) and through which a heating medium flows. The heating tube (3) is provided at a position spaced apart from the cell stack group (101G) by a predetermined distance. The heating tube (3) is provided helically around the cell stack group (101G).

ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL WITH SEPARATOR, ELECTROCHEMICAL CELL STACK, HOT MODULE, AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2026211776A1

The purpose of the present disclosure is to suppress the occurrence of cracks in an air electrode (29). An electrochemical cell (20) comprises a fuel electrode (21), a solid electrolyte layer (24), a reaction prevention layer (25), an air electrode (29), and interconnectors (AC1, FC1). The air electrode (29) has a first region (R1) having a contact region (S1) in contact with the interconnector (AC1), and a second region (R2) having a non-contact region (S2) not in contact with the interconnector (AC1). The content of an accessory component in a first volume of the first region (R1) of the air electrode (29) is greater than the content of the accessory component in a second volume of the second region (R2) of the air electrode (29).

OXYGEN REDUCTION CATALYST AND USE THEREOF

Resumen de: US20260312080A1

An oxygen reduction catalyst may include a catalyst metal having oxygen reduction reaction activity and a modified layer comprising an organic nitrogen compound having a triazine ring structure represented by the following formula (I) or a cation thereof:In the formula (I), R1, R2, R3, R4, R5, and R6 each independently represent a hydrogen atom, a group represented by R7OCH2—, or a group represented by —X—*, wherein R7 represents a hydrogen atom or an alkyl group having 3 to 8 carbon atoms, X represents a methylene group (—CH2—) or a methyleneoxy group (—O—CH2—), and * represents a bond. However, at least one of R1, R2, R3, R4, R5, and R6 is a group represented by R—OCH2— (where Rz is an alkyl group having 3 to 8 carbon atoms).

CONTINUOUS PRODUCTION SYSTEM AND METHOD FOR SYNTHETIC NATURAL GAS

Resumen de: WO2026212402A1

According to the present invention, a continuous production system for synthetic natural gas may be provided in a continuous process system for converting carbon dioxide into synthetic natural gas. The continuous production system for synthetic natural gas comprises: an electrochemical reactor which receives carbon dioxide and water and generates synthetic gas through an electrochemical reaction; and a thermochemical reactor which receives the generated synthetic gas from the electrochemical reactor and generates methane through a thermochemical reaction. The electrochemical reactor includes a negative electrode containing a silver (Ag) or gold (Au)-based catalyst and reduces carbon dioxide to carbon monoxide. The electrochemical reactor generates synthetic gas having a ratio of carbon monoxide to hydrogen of 1:2.90 to 1:3.54.

ELECTROCHEMICAL OXYGEN REDUCTION CATALYST

Resumen de: US20260312075A1

0000 Provided is an electrochemical oxygen reduction catalyst in which a decrease in catalytic activity is suppressed. The present disclosure relates to an electrochemical oxygen reduction catalyst, a manufacturing method thereof, and a fuel cell and a water electrolysis system using the electrochemical oxygen reduction catalyst. The electrochemical oxygen reduction catalyst comprises a catalyst metal having an oxygen reduction activity and an additive that modifies the catalyst metal. The additive contains a nitrogen-containing cyclic organic compound having a triazine skeleton, a polymer thereof, or a cation thereof. In the nitrogen-containing cyclic organic compound, the polymer thereof, or the cation thereof, a total number of functional groups that substitute hydrogen atoms of melamine and functional groups that substitute amino groups of melamine is 3.79 or more and 5.51 or less per molecule of the nitrogen-containing cyclic organic compound.

BIMETALLIC CATALYSTS SUPPORTED ON LANTHANUM MANGANITE (LaMnO3) FOR AMMONIA DECOMPOSITION

Resumen de: US20260307984A1

A method of ammonia (NH3) decomposition includes flowing hydrogen (H2) through a reactor containing a catalyst to reduce the catalyst and flowing an NH3 mixture through the reactor at a temperature of 100 to 800 degrees Celsius (° C.) to decompose the NH3. The catalyst is a metal-doped lanthanum manganite material (LaMnO3) including cobalt (Co) and nickel (Ni) each in an amount of 0.1 to 2.0 percent by weight (wt. %) based on a total weight of the metal-doped LaMnO3 material. The NH3 mixture includes NH3 and helium in a volumetric ratio of 5:95 to 15:85. At least 99 wt. % of NH3 is decomposed to form H2 and N2 at a temperature of 550° C. based on an initial amount of the NH3.

Electrolysis drain system

Resumen de: FI20253120A1

The present disclosure relates to an electrolysis apparatus drain (2) system comprising a storage vessel (16) configured to receive an extracted fluid and a pressure regulation valve (28) fluidly connected to the storage vessel (16) and provided downstream of the storage vessel (16). A drain valve (30) is configured to control flow of the extracted fluid from the storage vessel (16) and provided downstream of the pressure regulation valve (28). An upstream side of the pressure regulation valve (28) is provided at the same pressure environment as the storage vessel (16) and a downstream side of the pressure regulation valve (28) provides a predetermined pressure at the drain valve (30).

ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL WITH SEPARATOR, ELECTROCHEMICAL CELL STACK, HOT MODULE, AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2026211779A1

The purpose of the present disclosure is to suppress the occurrence of cracks in an air electrode (29). An electrochemical cell (20) has a fuel electrode (21), a solid electrolyte layer (24), a reaction prevention layer (25), the air electrode (29), and interconnectors (AC1, FC1). The air electrode (29) has a first region (R1) having a contact region (S1) that is in contact with the interconnector (AC1), and a second region (R2) having a non-contact region (S2) that is not in contact with the interconnector (AC1). The included percentage of an auxiliary component in a first volume of the first region (R1) in the air electrode (29) is smaller than the included percentage of the auxiliary component in a second volume of the second region (R2) in the air electrode (29).

ELECTRODE COMPOSITION FOR PROTON EXCHANGE MEMBRANE WATER ELECTROLYSIS, ELECTRODE FOR PROTON EXCHANGE MEMBRANE WATER ELECTROLYSIS, ANODE, MEMBRANE-ELECTRODE ASSEMBLY, AND PROTON EXCHANGE MEMBRANE WATER ELECTROLYSIS CELL

Nº publicación: US20260308785A1 08/10/2026

Solicitante:

HYUNDAI MOTOR CO LTD [KR]
KIA CORP [KR]
Hyundai Motor Company
Kia Corporation

Resumen de: US20260308785A1

0000 Provided is an electrode composition for proton exchange membrane water electrolysis comprising a binder, a catalyst, and a solvent, wherein the binder comprises a polar group-free binder. The electrode may comprise a binder, a catalyst, and a solvent, wherein the binder may comprise a polar group-free binder. The binder may further comprise a polar group-containing binder. Also provided is an anode comprising the electrode composition for proton exchange membrane water electrolysis. Also provided is a membrane-electrode assembly comprising the electrode for proton exchange membrane water electrolysis. Also provided is a proton exchange membrane water electrolysis cell comprising the electrode for proton exchange membrane water electrolysis.