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HYDROGEN-PRODUCTION POWER SUPPLY SYSTEM AND CONTROL METHOD THEREFOR

Resumen de: WO2026200097A1

Disclosed in the present application are a hydrogen-production power supply system and a control method therefor. The system comprises a transformer, a main power branch, an auxiliary power branch, at least one set of energy storage branches, and a busbar, wherein a primary winding of the transformer is coupled to an alternating-current power grid, and a secondary winding of the transformer is coupled to an input terminal of the main power branch; an output terminal of the main power branch is coupled to an off-grid hydrogen production device; the auxiliary power branch is coupled between the secondary winding and the busbar; the energy storage branches are all coupled to the busbar; the main power branch comprises at least one uncontrolled rectifier circuit and at least one chopper circuit, the uncontrolled rectifier circuit being used for converting into direct currents alternating currents that are output by the transformer, thereby saving costs, and the chopper circuits being used for adjusting the voltage of the direct currents to a voltage required by a load of a chopper branch; the auxiliary power branch is used for outputting power to the busbar and performing power exchange with the alternating-current power grid, thereby improving the capability of responding to the alternating-current power grid; and the energy storage branches are used for pre-storing and releasing electric energy by means of the busbar, thereby improving the system stability.

HYDROGEN-ELECTRICITY COUPLING CONTROL SYSTEM AND METHOD FOR OFF-GRID GREEN-ELECTRICITY-BASED HYDROGEN PRODUCTION

Resumen de: WO2026199954A1

The present invention belongs to the technical field of green-electricity-based hydrogen production. Disclosed are a hydrogen-electricity coupling control system and method for off-grid green-electricity-based hydrogen production. The method comprises: executing MPPT control on each photovoltaic module, so as to maximize an output power; distributing output powers to power-type electrolyzers, and adjusting the duty cycles of boost DC/DC converters to stabilize a low-voltage-side current at a set value, such that the power-type electrolyzers always operate at rated power points; and distributing the output powers to regulation-type electrolyzers, and adjusting the output voltages of the boost DC/DC converters to stabilize a high-voltage-side voltage at a target value, such that the regulation-type electrolyzers absorb a fluctuating portion of a photovoltaic power. The present invention can effectively improve the efficiency of a green-electricity-based hydrogen production system, and can realize stable and sustainable hydrogen production without relying on energy storage.

COMBINED CORROSION MITIGATION AND HYDROGEN ISOTOPE EXTRACTION FROM MOLTEN SALTS

Resumen de: US20260301985A1

Disclosed are galvanic cells and methods for treating a molten salt by use of the galvanic cells. The galvanic cell can provide anti-corrosion treatment and improved corrosion resistance via electrochemical and chemical reactions involving a corrosive impurity in a molten salt. Reaction products of the chemical and electrochemical reactions include hydrogen gas that can carry hydrogen isotopes evolved in the molten salt. The system can also include removal of the hydrogen gas from the molten salt and separation and recovery of tritium contained therein.

SELF-STANDING BI-FUNCTIONAL ELECTRODE FOR OVERALL WATER ELECTROLYSIS

Resumen de: US20260297773A1

0000 The present invention relates to ternary metal(s) hydroxide (M1-M2-Ni)(OH)<2> composite supported on nickel foam (NF) having nanoflower arrays structure, which acts as a self-standing bifunctional electrocatalyst for cathode as well as anode (both electrodes) for water electrolysis/splitting. Further, the present invention provides hydrothermal process for the preparation of said bi-functional electrocatalyst. The bifunctional catalyst disclosed herein is useful in performing water electrolysis reactions to generate hydrogen and oxygen.

METHOD AND SYSTEM FOR STORING HYDROGEN

Resumen de: US20260298411A1

0000 A method for storing hydrogen in a plurality of subsea storages in a system. The system comprising an electrolyser source for producing hydrogen at a source pressure; a downstream compressor for compressing the hydrogen from the source pressure to a compressed higher pressure; and a plurality of storages, each for storing compressed hydrogen at the compressed higher pressure and each being subsea. The method comprising at least the steps of: producing hydrogen by the electrolyser source at the source pressure; passing the hydrogen to the plurality of storages through a bypass line around the compressor; and storing the hydrogen in at least one of the plurality of storages at a first pressure below the compressed higher pressure. A system for storing hydrogen in a plurality of subsea storages is also disclosed.

METHOD AND PLANT FOR PRODUCING HYDROGEN

Resumen de: US20260297763A1

0000 A method for producing hydrogen, where feed water is subjected to electrolysis with a cathode gas being obtained, wherein the cathode gas contains hydrogen, oxygen and some of the feed water, wherein a process gas flow (102) is formed using at least some of the cathode gas, where the process gas flow contains at least some of the hydrogen, oxygen and feed water contained in the cathode gas, and where, in the process gas flow, at least some of the oxygen is subjected to an oxidative catalytic reaction with some of the hydrogen to form oxidation water, and where at least some of the feed water and the oxidation water in the process gas flow are removed from the process gas flow in a water removal process.

METHOD FOR CONTROLLING A PLANT CONTAINING A PLURALITY OF ELECTROLYSERS

Resumen de: US20260297776A1

A method for controlling a facility containing electrolysers that are fluidically in parallel, including controlling the electrolysers in such a way as to seek to increase the uniformity of the individual loads on the electrolysers in operation. As s a result, specific electrical consumption of the facility for a predetermined total production load or for an electrical power available to power the facility is provided.

SEMICONDUCTOR CATALYST, CATALYST ELECTRODE, METHOD FOR PRODUCING REDUCED PRODUCT, AND DEVICE FOR PRODUCING REDUCED PRODUCT

Resumen de: US20260297772A1

A semiconductor catalyst is provided, which exhibits an effect of accelerating a reduction reaction by visible light irradiation and is excellent in durability. The semiconductor catalyst of the present disclosure includes thin film containing nitrogen-containing diamond particles in a plane direction and a height direction. The semiconductor catalyst can be produced by, for example, fixing, on a substrate having a positive or negative charge, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the nitrogen-containing diamond particles being opposite to that of the substrate, and laminating, on the fixed nitrogen-containing diamond particles, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the laminated nitrogen-containing diamond particles being opposite to that of the fixed nitrogen-containing diamond particles. The step of laminating is performed at least once after the step of fixing.

ELECTRODE AND ALKALI WATER ELECTROLYTIC DEVICE INCLUDING SAME

Resumen de: US20260297769A1

0000 An electrode, including: a substrate that has a surface composed of at least one of nickel, nickel oxide, and nickel hydroxide; and scale-like protruding parts provided on the surface of the substrate.

HYDROGEN GENERATOR

Resumen de: WO2026203859A1

Provided is a hydrogen generator that can be miniaturized.　The present invention comprises: a water-permeable member that carries a photocatalyst; and a pair of gas barrier members that sandwich the water-permeable member.

FLOW THROUGH ELECTRODE ASSEMBLY AND STACK

Resumen de: EP4814166A2

0001 The present disclosure relates to an electrode assembly for a bipolar electrolyser stack, preferably for an electrolyser stack, comprising: a first flow-through electrode comprising a first surface that is permeable to gases produced by the decomposition of a process solution, preferably water, and an opposite second surface; a second flow-through electrode comprising a first surface that is permeable to gases produced by the decomposition of a process solution, preferably water, and an opposite second surface; and a non-permeable divider arranged between the second surfaces of the first and second flow-through electrodes and adapted to separate the first and second flow-through electrodes from each other.

CATALYST FOR AMMONIA DECOMPOSITION REACTION WITH IMPROVED CATALYST STABILITY AND HYDROGEN PRODUCTION METHOD USING SAME

Resumen de: EP4813514A1

The present invention relates to a catalyst for an ammonia decomposition reaction and a hydrogen production method using same. More specifically, the present invention relates to: a catalyst for an ammonia decomposition reaction which, by containing cesium and cerium in a cobalt-molybdenum composite nitride, exhibits excellent catalytic activity in the ammonia decomposition reaction and thus enables an improved ammonia conversion rate, and which shows minimal degradation in activity even after high-temperature and long-duration reactions, offering excellent long-term stability; and a hydrogen production method using the catalyst.

MEMBRANE-ELECTRODE ASSEMBLY FOR WATER ELECTROLYSIS CELL, AND WATER ELECTROLYSIS CELL COMPRISING SAME

Resumen de: EP4814167A1

0001 The present disclosure relates to a membrane-electrode assembly for a water electrolysis cell and a water electrolysis cell comprising same, wherein the membrane-electrode assembly for a water electrolysis cell further comprises a coating layer positioned on one surface of a catalyst layer to prevent an ion conductor exposed on the surface of the catalyst layer from contacting a microporous layer, and a polymer electrolyte membrane exposed through an opening in which the catalyst layer does not exist due to low loading from contacting the microporous layer, thereby reducing a band bending phenomenon, so that a pinch-off effect can be reduced and performance can be improved. In addition, furthermore, the coating layer serves to connect catalyst layers, which are not in contact with the microporous layer, to each other, thereby enabling smooth electron movement.

ELECTROLYSIS DEVICE FOR PRODUCING A FUEL

Resumen de: WO2025179327A1

The present invention relates to an electrolysis device (100) for producing a fuel (B) in electrolysis cells of at least one electrolysis stack (110), comprising an air supply portion (122) for supplying feed air (ZL) to an air side (120) of the electrolysis stack (110) and an air discharge portion (124) for discharging exhaust air (AL) from the air side (120) of the electrolysis stack (110), and also comprising a water supply portion (132) for supplying water (W) to a fuel side (130) of the electrolysis stack (110) and a fuel discharge portion (134) for discharging fuel mixture (BG), which comprises fuel (B) and water (W), from the fuel side (130) of the electrolysis stack (110), wherein: the fuel discharge portion (134) has a condenser device (140) for cooling the fuel mixture (BG) to below a condensation temperature of water (W), for condensing the water (W) and separating the water from the fuel (B); in the fuel discharge portion (134), upstream of the condenser device (140), a fuel-mixture/feed-air heat exchanger (150) is arranged in heat-transferring contact with the air supply portion (122) for transferring heat from the fuel mixture (BG) to the feed air (ZL).

ELECTROLYSIS DEVICE, METHOD FOR CONTROLLING ELECTROLYSIS DEVICE, AND CONTROL PROGRAM FOR ELECTROLYSIS DEVICE

Resumen de: EP4814168A1

Provided are an electrolysis device, an electrolysis device control method, and an electrolysis device control program that reduce circulation current flowing through a grounding wire. An electrolysis device (1) includes: a plurality of rectifiers (20); and an electrolyzer (100) having a plurality of cell stacks (10) having common positive electrodes, the positive electrode of each of the cell stacks (10) is connected to the positive electrode of each of the plurality of rectifiers (20) installed in parallel, the negative electrode of each of the cell stacks (10) is connected to the negative electrode of each of the rectifiers (20), and electrolysis device further includes a balance cable (80) connecting a negative electrode of at least one of the cell stacks (10) and a negative electrode of at least another one of the cell stacks (10) to each other.

HYDROGEN AND OXYGEN GENERATION USING DETONATION WAVES

Resumen de: EP4813908A1

0001 A system and method are disclosed for the production of green hydrogen and oxygen from water using thermal decomposition driven by pulsed or continuous-spin detonation waves. In some embodiments, fresh water is converted into low-temperature steam and superheated beyond 3500°C using multi-stage shock-resonant compression within cooled gas-dynamic resonators, leading to dissociation of water into hydrogen and oxygen. In other embodiments, salt water is first desalinated by detonation-induced evaporation and fragmentation, producing steam and sea salt, after which the steam is thermally decomposed. A centrifugal vortex reactor is used to separate the resulting hydrogen and oxygen gases based on molecular weight. The system is capable of operating in a self-sustaining mode by recycling part of the generated gases for continued detonation. It is suitable for terrestrial and space-based applications, providing scalable, carbon-neutral hydrogen and oxygen production from fresh or salt water without the need for external electricity or fossil fuels.

WATER ELECTROLYSER STACK HAVING A RANGE OF HALF-CELLS FRAMES

Resumen de: WO2025109126A1

Water electrolyser stack having a range of half-cell frames which each circumscribes one of an anolytic or a catholytic process chamber and which half-cell frames are arranged and aligned in an array between a proximal electric current injector/collector plate and a distal electric current injector/collector plate, and where each half-cell frame comprises an embedded furrow flow channel adapted to serve an electrolyte flow from a stack internal inflow manifold channel to a corresponding anolytic or catholytic reaction chamber and an embedded furrow flow channel adapted to serve an electrolyte and gas outflow from a corresponding anolytic or catholytic reaction chamber to a corresponding stack internal manifold channel wherein each of the embedded furrow flow channels comprise at least one fluid and/or gas trap section.

ELECTRODE UNIT PRODUCED BY RESISTANCE WELDING, ELECTROLYTIC CELL AND ELECTROLYSER COMPRISING SAME, AND CORRESPONDING MANUFACTURING METHOD

Resumen de: WO2025109108A1

The present application relates to an electrode unit (1216a, 1216b) for an electrolytic cell, comprising a planar electrode (12a, 12b) and an interlayer (16a, 16b) which is elastically deformable in a direction normal to the planar electrode (12a, 12b) and which has a thickness greater than a thickness of the electrode (12a, 12b) at least in a central region of the interlayer (16a, 16b), the interlayer (16a, 16b) comprising periphery regions crushed in said direction and connected to a periphery of the electrode (12a, 12b) by a weld made by resistance autogenous welding. An electrolytic cell and an electrolyser stack comprising such electrode units (1216a, 1216b) and a method for manufacturing such a stack are also described.

ELECTROLYTIC CELL COMPRISING AN ELECTRODE UNIT PRODUCED BY AUTOGENOUS WELDING, ELECTROLYSER COMPRISING SUCH AN ELECTROLYTIC CELL, AND CORRESPONDING MANUFACTURING METHOD

Resumen de: WO2025109109A1

The present application relates to an electrolytic cell comprising at least a first and a second bipolar plate (14) and an electrode unit (1216a, 1216b) and a membrane (11). The electrode unit comprises a planar electrode (12a, 12b) and an interlayer (16a, 16b) which is elastically deformable in a direction normal to the planar electrode (12a, 12b) and which has a thickness greater than a thickness of the electrode (12a, 12b) at least in a central region of the interlayer (16a, 16b), the interlayer (16a, 16b) comprising periphery regions crushed in said direction and connected to a periphery of the electrode (12a, 12b) by a weld created by autogenous welding. The present application also relates to an electrolyser stack comprising such a cell and to a method for manufacturing such a stack.

SODIUM FORMATE HYDROGEN EXTRACTION SYSTEM OPERATION AND PRODUCTION OF HYDROGEN AND METHANOL

Resumen de: US20250167271A1

0000 An integrated energy system comprising a power plant including at least one nuclear reactor and electrical power generation system, the at least one nuclear reactor being configured to generate steam, and the electrical power generation system being configured to generate electricity, a desalination system configured to receive at least a portion of the electricity and steam to produce brine, an electrolysis process configured to process the brine into Sodium Hydroxide (NaOH), a Sodium Formate (HCOONa) production process configured to receive the Sodium Hydroxide (NaOH) to produce Sodium Formate (HCOONa), a Hydrogen (H<2>) extraction reactor configured to receive the Sodium Formate (HCOONa) and produce Hydrogen (H<2>), and a fuel cell configured to receive the Hydrogen (H<2>).

INCLINED GAS COOLER AND APPLICATION TO A HYDROGEN/OXYGEN PRODUCTION SYSTEM

Resumen de: EP4814164A1

Piece of equipment (EQ1, EQ2) configured to treat a biphasic mixture output by a stack of electrolytic cells and comprising: a separator (SEP) to separate the biphasic mixture into a gaseous fraction (G) and a liquid electrolyte fraction (LE); a cooler (COOL) configured to cool down the gaseous fraction (G) and to condense water vapor of the gaseous fraction into liquid water, the cooler having a high extremity (BON_HE) and a low extremity (BON_LE) situated lower than the high extremity (BON_HE); and a return line (BCK') configured to transport the liquid water condensed in the cooler (COOL) back to the separator (SEP) and comprising a device (SY) configured to prevent fluid from flowing from the separator (SEP) to the cooler (COOL), wherein an output (OUT.H_SEP) of the separator (SEP) is fluidically connected to the low extremity (BON_LE) of the cooler (COOL).

A DEVICE FOR PRODUCTION OF GREEN HYDROGEN

Resumen de: WO2025109618A1

A Green HYDROGEN production apparatus is provided having a modular reactor vessel. The reaction is managed to safely drive the reaction to completion to maximize HYDROGEN production. A HYDROGEN outlet provides for the collection of the generated HYDROGEN from the reactor vessel (e.g. 1)

用于水电解的催化剂涂覆的膜

Resumen de: WO2025210347A1

A catalyst-coated membrane for a water electrolyser is provided. The catalyst-coated membrane comprises a polymer electrolyte membrane with an anode catalyst layer on a first side of the membrane. The anode catalyst layer comprises an oxygen evolution reaction catalyst containing at least one noble metal at a loading of the oxygen evolution reaction catalyst, based on the noble metal content, of less than or equal to 0.6 mg/cm2. The polymer electrolyte membrane comprises a membrane layer comprising dispersed platinum group metal-containing nanoparticles, a nanoparticle stabilising agent and an ion-conducting polymer.

用于生产氢气、电能、和热能的零排放热电联产装置

Resumen de: WO2025126055A1

A system is described for the production of hydrogen and thermal power through a spontaneous electrochemical oxidation-reduction reaction, formed by at least one reactor (1) composed by a loading line (2) that introduces a reacting material into a reaction basin (6); at least one discharge body (12) for the hydroxide produced during the reaction, wherein the pH is transformed into a desired value by the introduction of an acidic solution through a loading line (13); at least one loading line (3) of water that is supplied into the reaction basin (6); at least one cathode body (5) made of porous material containing gaseous oxygen; at least one loading line (4) that allows the oxygen to be replenished at the cathode body (5); at least one porous material filter (7) for separating the gaseous hydrogen from solid residues produced during the reaction; and at least one discharge line (8) for the release of gaseous hydrogen. The system is configured to perform a process for the production of hydrogen and thermal power through an oxidation-reduction reaction between a material acting as an anode, a material acting as a cathode and a material acting as an electrolyte.

水電解装置

Nº publicación: JP2026150806A 29/09/2026

Solicitante:

株式会社東芝

Resumen de: JP2026150806A

【課題】水電解装置の信頼性の低下を抑制する。【解決手段】水電解装置は、アノードと、カソードと、アノード流路と、カソード流路と、アノードとカソードとの間に設けられた隔膜と、を有する電解セルと、鉛直方向と交差する方向に延在し、カソード流路から排出されるとともに水素と水とを含む流体が流れる配管と、配管の途中に設けられ、配管の圧力を調整する第１のバルブと、配管の圧力を測定する圧力計と、配管の途中に設けられ、配管から下方に延在する管を有し、流体から水を分離して管に収容する気液分離器と、管に収容される分離された水の高さを検知するレベルセンサと、管の後段に設けられ、分離された水の管からの排出量を調整する第２のバルブと、圧力計により測定された配管の圧力に応じて第２のバルブの開度を調整する動作を制御するコントローラと、管の途中に設けられ、配管の圧力を数値範囲内に維持するとともに管に収容される分離された水から発生する水滴の飛散を抑制する構造と、を具備する。【選択図】図１