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水電解セル、及び水電解装置

Resumen de: JP2026147521A

【課題】イオン交換膜の損傷を適切に抑制することができる水電解セル、及び水電解システムを提供すること。【解決手段】本開示に係る水電解セルは、イオンを選択的に透過する性質を有するイオン交換膜と、イオン交換膜の一方側に配置される負極側触媒層と、イオン交換膜の他方の面側に配置される正極側触媒層と、イオン交換膜の一方の面と負極側触媒層の間と、イオン交換膜の他方の面と正極側触媒層の間との、少なくとも一方に設けられ、親水性を有する有機材料で構成される保護膜と、を備える。【選択図】図１

CONTINUOUS HYDROGEN ON-DEMAND SYSTEM

Resumen de: WO2026192980A1

A method for providing hydrogen on demand, as follows: providing an apparatus containing (i) a hydrogen storage unit configured to release hydrogen on demand for a period of up to 24 hours; (ii) a methanol reforming unit configured to steadily release hydrogen over a period of at least 24 hours, after a lead time for the methanol reforming process to pressurize a tank with hydrogen; and (iii) an electrical device operably connected to the hydrogen storage unit and methanol reforming unit and configured to switch operation of the hydrogen storage unit and methanol reforming unit to ensure that hydrogen is released without interruption by releasing hydrogen from the hydrogen storage unit only during said lead time of the methanol reforming process; and operating the apparatus to release hydrogen without interruption by releasing hydrogen from the hydrogen storage unit only during the lead time of the methanol reforming process.

METHOD OF CONVERTING BIOMASS INTO HYDROGEN AND BIOGENIC CARBON DIOXIDE

Resumen de: WO2026190457A1

A method of continuously converting biomass into hydrogen and biogenic carbon dioxide is provided. The method comprises introducing biomass, water, an acid and an oxidised redox mediator into a first reactor; operating the first reactor to generate carbon dioxide and an anolyte solution comprising an oxidised biomass, a reduced redox mediator and H+ ions; removing carbon dioxide from the first reactor; introducing at least a portion of the anolyte solution into an anode side of an electrochemical reactor; introducing a catholyte solution comprising an acid and a catholyte redox mediator into a cathode side of the electrochemical reactor; operating the electrochemical reactor to generate hydrogen at the cathode by reducing H+ ions, and to regenerate the oxidised redox mediator at the anode by oxidising the reduced redox mediator; removing hydrogen from the electrochemical reactor; and recirculating the oxidised redox mediator from the electrochemical reactor to the first reactor.

ELECTROLYSIS SYSTEM

Resumen de: WO2026191168A1

This electrolysis system comprises: an electrolysis device that generates a cathode off-gas containing hydrogen through electrolysis of a water raw material; a fuel synthesis reaction device that synthesizes fuel from hydrogen and a carbon oxide gas; a cathode regeneration heat exchanger that exchanges heat between the cathode off-gas and a cathode supply gas supplied to a cathode of the electrolysis device; a steam generator that converts the water into steam on the upstream side of the cathode regeneration heat exchanger; a heating medium circulation system in which a heating medium moves between the steam generator and the fuel synthesis reaction device; an auxiliary heating device that is provided on the upstream side of the steam generator in the heating medium circulation system and heats the heating medium; a heating medium pump that is provided on the downstream side of the steam generator in the heating medium circulation system; and a steam heating medium state estimation sensor that is provided in the steam generator and estimates a vaporization state of the water.

METHODS FOR SELECTIVELY DEPOSITING NANO- OR MICROSCOPIC PLUGS IN MEMBRANES FOR ELECTROCHEMICAL APPLICATIONS

Resumen de: US20260275551A1

Crossover through submicron thick SiO2 membranes can be mitigated by selectively depositing oxide, e.g., carbon-containing silicon oxide (SiOxCy) “nanoplugs” into the pinholes and cracks of the membranes. Defect-containing membranes are contacted with a deposition solution including hydrolysable precursors, e.g., metal alkoxides like tetraethyl orthosilicate (TEOS), and a nanoplug directing agent, e.g., tetramethylammonium bromide (TMAB). Current is applied to the defect-containing membranes in pulses, including a shorter “on” phase where current is applied and a longer “off phase” where current is not applied. The SiOxCy nanoplugs are deposited to the structural defects during the “on” phase. The longer “off phase” enables reactants to diffuse back to the structural defects for deposition of additional nanoplugs during the next “on” phase, as well as prevent deposition of SiOxCy on non-defective regions. Treatment of plugged SiO2 membranes reduced H2 permeation rates by 5-6 orders of magnitude compared to unmodified SiO2 and 1-2 orders of magnitude compared to Nafion-117 membranes.

SOLID OXIDE ELECTROLYSIS CELL SYSTEM

Resumen de: WO2026191397A1

In order to calculate the state of the inside of an SOCE without deteriorating airtightness between electrodes of the SOCE, a solid oxide electrolysis cell system according to the present invention comprises: an electrolysis cell unit that generates oxygen and hydrogen by electrolyzing water vapor using a solid oxide electrolysis cell; a voltage measurement unit that measures the voltage of the electrolysis cell unit; an impedance measurement unit that measures the impedance value of the electrolysis cell unit; a temperature calculation unit that calculates the cell temperature of the electrolysis cell unit on the basis of the impedance value of the electrolysis cell unit and the activation energy of a solid electrolyte unit of the electrolysis cell unit; a gas composition calculation unit that calculates the gas composition of the water vapor to be flowed into the electrolysis cell unit on the basis of the voltage and the cell temperature; and a gas control unit that controls the gas flow rate of the water vapor to be flowed into the electrolysis cell unit on the basis of the gas composition calculated by the gas composition calculation unit.

POLYMER AND METHOD FOR PRODUCING SAME, COMPOUND, COMPOSITION, ELECTROLYTE MEMBRANE, WATER ELECTROLYSIS DEVICE, AND METHOD FOR PRODUCING HYDROGEN

Resumen de: WO2026191911A1

The purpose of the present disclosure is to provide: a polymer which has excellent chemical durability, particularly excellent alkali durability; and an electrolyte membrane using the polymer. The electrolyte membrane formed from said polymer is very useful in alkaline water electrolysis application.　This polymer has a constituent unit represented by formula (1). (In formula (1), A is formula (2), B is formula (3), C is formula (4), and n is an integer of 0-20. In formulae (2) to (4), Z represents a halogen-containing group or an ion-exchange group; X represents a bonding position to Y; and l and m each independently represent an integer of 0-20. The symbol * represents a bond.)

REDOX MEDIATED GAS EVOLUTION

Resumen de: US20260275536A1

An electrochemical system produces a gas from an aqueous solution. A liquid is circulated from a half-cell to a reaction vessel and then returned to the half-cell. A redox mediator in the liquid is converted from a first state to a second state in the half-cell and reacts to form a gas in the reaction chamber while being returned to its first state. The circulating liquid also includes a high molecular weight linear polymer or a viscoelastic surfactant which forms wormlike micelles enabling it to be in a state of elastic turbulence and the reaction chamber is configured to compel changes of flow direction so that the liquid is in a state of elastic turbulence as it flows through the reaction chamber. The half-cell may be configured such that the liquid is in a state of elastic turbulence as it flows through the half-cell.

WATER ELECTROLYSIS SYSTEM

Resumen de: US20260275540A1

0000 A water electrolysis system includes a water electrolysis stack, the water electrolysis stack including a cell stack body in which a plurality of water electrolysis cells for electrolyzing water are stacked, and a first end member and a second end member that sandwich the cell stack body in a stacking direction of the plurality of water electrolysis cells. At least one of the first end member or the second end member includes a gas-liquid separator for separating fluid guided from the cell stack body into gas and liquid.

ALKALINE ELECTROLYZER STRUCTURE

Resumen de: US20260275544A1

The disclosure describes an alkaline electrolyzer structure with: a bipolar plate containing four through-holes, so as to allow a first electrolyte and a second electrolyte to flow through the bipolar plate;four electrically insulating rings each containing a central void and each being intended to be inserted into each respective through-hole in the thickness of the bipolar plate, so as to reduce the cross-sectional area of the through-hole and so as to form an electrical insulation between one of the electrolytes and the bipolar plate, when one of the electrolytes passes through the central void of the ring.

ELECTROLYSIS SYSTEM AND METHOD FOR OPERATING AN ELECTROLYSIS UNIT

Resumen de: WO2026190203A1

The disclosure relates to a method for operating an electrolysis unit, the unit comprising at least one solid oxide electrolysis cell. The electrolysis cell comprises: a process electrode; an oxy electrode; a solid electrolyte providing ionic contact between the process and oxy electrodes; a process chamber interfacing the process electrode; a first process opening coupled to the process chamber for supplying a process feed gas; a second process opening coupled to the process chamber for discharging a product gas; an oxy chamber interfacing the oxy electrode; a first oxy opening coupled to the oxy chamber for supplying a flush gas; and a second oxy opening coupled to the oxy chamber for discharging oxygen. The method comprises the steps of: operating the electrolysis unit to produce oxygen in the oxy chamber; and discharging said oxygen from the oxy chamber through both the first oxy opening and the second oxy opening.

ENCAPSULATED ALKALINE ELECTROLYSIS DEVICE

Resumen de: WO2026190173A1

An encapsulated alkaline electrolysis device comprising a sealed casing (1), a plurality of parallel metal plates (2) separated from each other by a space (3) for water to flow between the parallel metal plates (2), comprising two first dielectric parts (4) at the ends of the parallel metal plates (2), a plurality of second dielectric parts with comb-shaped cross-section (8) at the edges of the parallel metal plates (2) with clearances (9) between the second dielectric parts (8) and a plurality of dielectric spacers (10) in the clearances (9), wherein each spacer (10) comprises an end flat face (11 ) with four legs (12) at the corners and an inner flat face (13) with a plurality of slots (14) in correspondence with the spaces (3) between the parallel metal plates (2), and some protrusions (16) on the edges of the parallel metal plates (2).

HEAT EXCHANGER, AND ELECTROCHEMICAL SYSTEM COMPRISING SUCH AN EXCHANGER

Resumen de: WO2026189969A1

The invention relates to a heat exchanger (100) for heat exchange between several fluids; - the heat exchanger (100) being manufactured by 3D printing; - the heat exchanger (100) comprising several groups of channels (102-120), each channel, through which one of the fluids passes, connecting an inlet for the fluid into the exchanger (100) to an outlet for the fluid out of the exchanger (100); - the groups of channels (102-120) being arranged such that one channel of one group (102-120) through which one fluid passes faces another channel of another group (102-120) through which another fluid passes in order to carry out a heat exchange between the fluids. It also relates to an electrochemical system comprising such a heat exchanger.

AMMONIA DECOMPOSITION CATALYST, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING HYDROGEN

Resumen de: WO2026191572A1

One embodiment of the present invention relates to an ammonia decomposition catalyst which contains cobalt (A), barium (B), and cerium (C), wherein the content of an alkali metal in the catalyst is 0.01 mol or less with respect to 1 mol of the cobalt (A).

MEMBRANE ELECTRODE FOR ALKALINE WATER ELECTROLYSIS FOR HYDROGEN PRODUCTION AND PREPARATION METHOD THEREFOR, AND ELECTROLYTIC CELL

Resumen de: US20260275542A1

The present disclosure provides a membrane electrode for hydrogen production by alkaline water electrolysis, a preparation method therefor, and an electrolytic cell. According to the method provided by the present disclosure, a membrane electrode with catalyst layers uniformly and firmly adhered to the surfaces of a membrane can be obtained via a direct coating and hot pressing. The membrane electrode is endowed with good stability, and the obtained membrane electrode exhibits a significantly reduced overpotential for water electrolysis. The method comprises the following steps: directly applying a catalyst slurry (catalyst slurries) onto both sides of a membrane, followed by drying and hot pressing the catalyst slurry (catalyst slurries) to form catalyst layers on each surface of the membrane to obtain the membrane electrode. The membrane is selected from a porous membrane or an alkaline anion exchange membrane; the catalyst slurry comprises a binder solution and a catalyst, wherein the binder solution is one or more selected from a perfluorosulfonic acid resin solution and a perfluorosulfonic acid ionomer dispersion, and the mass concentration of the binder solution is 5% to 30%; and the mass ratio of the binder solution to the catalyst is 1:1 to 4:1.

電解装置システムおよび電解装置システムを動作させるための方法

Resumen de: WO2025043281A1

An electrolyser system (400) comprises at least one electrolyser (460) and has an operating energy requirement generated by an energy source (27). The energy source (27) includes waste heat generated by an industrial process whether involving combustion or an exothermic chemical reaction. The electrolyser system (400) further comprises a waste heat to power system (70) for recovering heat from the industrial process to produce electricity for supply to the at least one electrolyser (460); and a heat exchange system (407) for recovering heat from the industrial process and enabling transfer of said recovered heat to the at least one electrolyser (460) as thermal energy. The electrolyser system (400) has substantially higher energy efficiency and lower cost than an electrolyser system operated using an intermittent renewable energy source.

IRIDIUM-BASED NANOWIRE AND PREPARATION METHOD THEREFOR, AND IRIDIUM-BASED CATALYST CONTAINING SAME AND PREPARATION METHOD THEREFOR

Resumen de: EP4807047A1

0001 This invention discloses an iridium-based nanowire comprising a twin crystal composed of iridium and at least one transition metal selected from iron, cobalt, and nickel, preferably, the diameter d of the nanowire is 0.5 to 6 nm, and more preferably, the grain size of the twin crystal is (0.8-1.1)·d nm. This invention also relates to an iridium-based catalyst comprising the iridium-based nanowire and preparation methods of the iridium-based nanowire and the iridium-based catalyst. The catalyst of this invention has the advantages of large electrochemical active surface area, high catalytic activity for oxygen evolution reaction, and good stability.

OPERATION METHOD FOR ELECTROLYSIS DEVICE, CONTROL DEVICE FOR ELECTROLYSIS DEVICE, AND ELECTROLYSIS SYSTEM

Resumen de: EP4807049A1

Provided are an operation method of an electrolyzer, a controller of an electrolyzer, and an electrolysis system that can quickly reach a rated load. An operation method of an electrolyzer (100) including a temperature controller (30) configured to regulate a temperature of an electrolyte solution supplied to a cellstack (40), the cellstack (40) configured to electrolyze the electrolyte solution supplied via the temperature controller (30), and a gas-liquid separator (20) configured to separate a gas and a liquid from each other that are generated by the cellstack (40) includes: supplying hot water to the temperature controller (30) in a case of a stopped state where the electrolyzer (100) is stopped.

チタン酸ストロンチウム粒子、光触媒材、分散液、組成物、塗膜、基材

Resumen de: JP2026146518A

【課題】高い水分解活性を有し、光触媒を用いた太陽光照射による水分解に用いられる水分解用チタン酸ストロンチウム光触媒を提供する。【解決手段】粒子密度が４．０ｇ・ｃｍ－３以上、比表面積が２ｍ２・ｇ－１以上２５ｍ２・ｇ－１以下であり、イリジウムがドープされた、チタン酸ストロンチウム粒子。【選択図】なし

ELECTROLYSIS CELL SYSTEM AND METHOD FOR CONTROLLING SAME

Resumen de: EP4807048A1

Provided is an electrolytic cell system comprising an electrolytic cell, a first supply line, a second supply line, a first pressure adjusting unit, a second pressure adjusting unit, and a controller. The electrolytic cell has a hydrogen electrode chamber and an oxygen electrode chamber. The first supply line supplies a feedstock gas containing water vapor to the hydrogen electrode chamber. The second supply line supplies compressed air to the oxygen electrode chamber. The first pressure adjusting unit is provided in the first supply line. The second pressure adjusting unit is provided in the second supply line. The controller adjusts a first pressure in the hydrogen electrode chamber and a second pressure in the oxygen electrode chamber by controlling the first pressure adjusting unit and the second pressure adjusting unit.

A METHOD AND A CONTROL ARRANGEMENT FOR CONTROLLING A RENEWABLE POWER PLANT

Resumen de: WO2025098577A1

A method and a control arrangement for controlling a renewable power plant (100) connected to a power grid (116) are presented. The method comprises: - determining (210) a dynamic policy (DP) based on: -- a current state (Scur) of the renewable power plant (100), -- a prediction (Ppred) of a future power production of more than one renewable electric power generating units (103) comprised in the renewable power plant, and -- a risk (λ) for instability at a connection (115) to the power grid (116); - determining (220) one or more power-to-gas reference points (RPP2G) based on: -- an available power (Pav) provided by the more than one renewable electric power generating units (103), and -- the determined dynamic policy (DP); and - providing (230) the determined one or more power-to-gas reference points (RPP2G) to at least one power-to-gas unit (120).

ELECTROCHEMICAL CELL ASSEMBLY

Resumen de: TW202520535A

The invention relates to an electrochemical cell assembly (10), comprising a first end plate (12), a second end plate and a stack (16) of cell units (18), wherein each cell unit defines an external perimeter, a housing (42) surrounding the stack to define or enclose a fluid volume (48), at least one electrically insulating member (98) being located between the housing and the external perimeters of the cell units and a positioning device (100) for the at least one electrically insulating member, comprising at least one positioning member (106) protruding from either the housing or one of the end plates into the fluid volume, wherein the at least one positioning member has a positioning surface interacting with the electrically insulating member for positioning the electrically insulating member relative to the housing and/or the end plates. The invention also relates to methods of manufacturing an electrochemical cell assembly.

SYSTEM AND METHOD FOR AMMONIA SYNTHESIS COUPLED WITH HYDROGEN PRODUCTION

Resumen de: EP4806839A1

0001 Provided are a system and method for ammonia synthesis coupled with hydrogen production. The system includes: a hydrogen production module, a hydrogen deoxygenation module, an adsorption module, and an ammonia synthesis module connected in sequence; and a nitrogen supply module, a regeneration module, and the adsorption module connected in sequence. When one of the regeneration module and the adsorption module includes a first adsorption tower, the other includes a second adsorption tower. A hydrogen purification module, the nitrogen supply module, and the ammonia synthesis module are all connectable and disconnectable to the first adsorption tower and the second adsorption tower. The nitrogen supply module supplies nitrogen, the regeneration module uses nitrogen to perform desorption regeneration in the first adsorption tower or the second adsorption tower and supplies nitrogen to the adsorption module. The hydrogen production module supplies hydrogen to be purified, and the hydrogen deoxygenation module purifies the hydrogen to be purified and then supplies it to the adsorption module. The adsorption module purifies hydrogen and nitrogen and then supplies them to the ammonia synthesis module, which is at least conducive to reducing energy consumption and system investment costs.

电解装置及其控制方法、电解系统及其控制方法

Resumen de: EP4807046A1

0001 An electrolysis device includes: an electrolysis cell stack having a first and a second flow path through which a first and a second fluid flows; a flow rate controller to control a flow rate of the first fluid through the first flow path; a controller; a flowmeter; and a concentration meter to measure a concentration of a reduction product in the second fluid. The controller is configured to calculate a variation in ratio of a supply flow rate to a theoretical flow rate of a reducible material in the cells using first data indicating a relation between a supply amount of the reducible material in the cell and a Faraday efficiency of the reduction product and using second data indicating a Faraday efficiency of the reduction product in the cell stack, and control the flow rate controller controlling the flow rate of the first fluid according to the variation.

PEM电解槽多变量前馈反馈协同抗功率波动系统及方法

Nº publicación: CN122751262A 15/09/2026

Solicitante:

长春绿动氢能科技有限公司国家电投集团氢能科技发展有限公司

Resumen de: CN122751262A

本发明涉及PEM电解槽控制技术领域，PEM电解槽多变量前馈反馈协同抗功率波动系统及方法，包括感知与预测层获取功率预测序列、环境温度、液体体积、实际温度及阴阳极气相压力。智能决策层对功率预测序列进行求导滤波提取功率扰动趋势参数，结合液体体积与温度变化率在线辨识系统等效热容，生成包含温度与压力调节的全局前馈指令；同时基于实际温度和压差偏差计算闭环反馈修正指令，将前馈与反馈指令合成得出最终执行指令。执行层据此调控电解槽运行温度和压力。本发明通过前馈感知与参数辨识相结合的控制机制，有效解决了变工况下电解槽的温度震荡与压差波动问题，提升了系统在剧烈功率波动下的调节精度与运行稳定性。