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LOW-HYDROGEN-PERMEABILITY PROTON EXCHANGE MEMBRANE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

NºPublicación:  AU2025268573A1 19/03/2026
Solicitante: 
SHANDONG DONGYUE FUTURE HYDROGEN ENERGY MAT CO LTD [CN]
SHANDONG DONGYUE FUTURE HYDROGEN ENERGY MATERIAL CO.LTD
AU_2025268573_PA

Resumen de: AU2025268573A1

The present invention relates to the technical field of the electrolysis of water, and specifically relates to a low-hydrogen-permeability proton exchange membrane, and a preparation method therefor and the use thereof. The proton exchange membrane comprises a Pt-containing additive layer and a matrix membrane, wherein the Pt-containing additive layer is composed of a Pt additive and a fluorine-containing proton exchange resin, the Pt-containing additive layer comprises an array layer and a flattening layer, the thickness ratio and the active-component ratio of the array layer to the flattening layer are respectively within the ranges of 1:(0.5-30) and 1:(1-50), and the array layer is composed of arrays arranged in order and an array layer resin coating the arrays. In the low-hydrogen-permeability proton exchange membrane provided by the present invention, by providing the Pt-containing additive layer consisting of the array layer and the flattening layer, the specific surface area of the Pt-containing additive layer is effectively increased by means of the arrays in the array layer, thereby achieving the efficient utilization of an additive; moreover, the hydrogen permeability improvement effect is further improved by controlling the thickness ratio and the active-component ratio of the array layer to the flattening layer and the parameters of the arrays.

PRODUCTION AND USE OF AQUA-AMMONIA FOR STORAGE OF ENERGY OR HYDROGEN

NºPublicación:  AU2024341133A1 19/03/2026
Solicitante: 
KOLOMA INC
KOLOMA, INC
AU_2024341133_PA

Resumen de: AU2024341133A1

Provided herein are systems and methods for utilizing aqua-ammonia as an energy or hydrogen storage and transport medium. A method for delivering power, the method comprises converting enriched ammonia to electrical power and heat; and using the heat to remove water from aqua-ammonia, thereby producing the enriched ammonia.

A WATER ELECTROLYSER SYSTEM AND METHOD FOR PRODUCING COMPRESSED HYDROGEN

NºPublicación:  AU2024336964A1 19/03/2026
Solicitante: 
HYSTAR AS
HYSTAR AS
AU_2024336964_A1

Resumen de: AU2024336964A1

The present invention relates to a water electrolyser system for production of compressed hydrogen, comprising a water electrolyser stack, a multiphase pump arranged downstream of the electrolyser stack and a hydrogen gas/liquid separator. The multiphase pump is arranged between the water electrolyser stack and the hydrogen gas/liquid separator. The present invention also relates to a method for production of compressed hydrogen in a water electrolyser system including: supplying deionized water or liquid electrolyte to a water electrolyser stack; producing hydrogen in a water electrolyser stack; compressing a mixture of produced hydrogen and entrained deionized water or liquid electrolyte in a multiphase pump; and separating the compressed mixture of produced hydrogen and entrained deionized water or liquid electrolyte in a hydrogen gas/liquid separator.

ELECTROCHEMICAL CELL AND ELECTROCHEMICAL DEVICE

NºPublicación:  EP4711506A1 18/03/2026
Solicitante: 
DE NORA PERMELEC LTD [JP]
De Nora Permelec Ltd
EP_4711506_PA

Resumen de: EP4711506A1

Provided are an electrochemical cell and an electrochemical device that are easily manufactured and capable of retrofitting. The electrochemical cell includes: a first plate and a second plate between which an anode chamber and a cathode chamber are respectively formed on respective opposing inner surface sides thereof; and a sealing portion provided between the first plate and the second plate, in which the sealing portion includes plural frame bodies disposed at intervals from an inner side to an outer side, and plural sealing members disposed between the plural frame bodies and disposed in a compressed state between the first plate and the second plate. The electrochemical device includes the electrochemical cell.

HYDROGEN GAS PRODUCTION ASSEMBLY AND METHOD FOR PRODUCTION OF HYDROGEN GAS

NºPublicación:  EP4709903A1 18/03/2026
Solicitante: 
RSJ OOSM B V [NL]
RSJ OOSM B.V
US_20260055522_PA

Resumen de: US20260055522A1

Provided herein is a hydrogen gas production assembly includes a hydrogen gas production device, a container including an aqueous electrolyte solution, a storage container for storing produced hydrogen gas an input providing the aqueous electrolyte solution from the container to the hydrogen gas production device and an output for transferring produced hydrogen gas from the hydrogen gas production device to the storage container.

IMPROVEMENT OF GAS EVOLUTION IN ELECTROLYSIS

NºPublicación:  EP4711499A1 18/03/2026
Solicitante: 
SERVICES PETROLIERS SCHLUMBERGER [FR]
SCHLUMBERGER TECHNOLOGY BV [NL]
Services P\u00E9troliers Schlumberger,
Schlumberger Technology B.V
EP_4711499_A1

Resumen de: EP4711499A1

An electrochemical half-cell operates to form a gas at a solid surface which may be an electrode. The electrolyte liquid contains an additive, which is a high molecular weight flexible linear polymer or a viscoelastic linear surfactant. A flow path through the half-cell is configured to compel flow of liquid through the half-cell to make a succession of changes of direction. The electrolyte liquid is pumped through the half-cell at rate which is sufficient that the additive and flow path configuration put the flowing electrolyte in a state of elastic turbulence which causes bubbles of gas to detach from the surface on which they are formed while they are still small, freeing the surface area for further reaction. The half-cell may be part of an electrolyser making hydrogen and oxygen from water.

CORROSION-RESISTANT SYSTEM, CARBON-FREE POWER GENERATION AND FUEL CELL SYSTEM COMPRISING SAID CORROSION-RESISTANT SYSTEM, AND AMMONIA DECOMPOSITION METHOD

NºPublicación:  EP4711327A1 18/03/2026
Solicitante: 
SK INNOVATION CO LTD [KR]
SK Innovation Co., Ltd
EP_4711327_PA

Resumen de: EP4711327A1

A corrosion-resistant system, a carbon-free power generation and fuel cell system comprising the corrosion-resistant system, and a method for ammonia decomposition utilizing said corrosion-resistant system are provided. The corrosion-resistant system includes: an ammonia supply unit; a first pipe connected to the ammonia supply unit; an ammonia decomposition unit comprising a chamber connected to the first pipe; and a second pipe connected to the chamber, wherein the chamber is configured to operate at an operating temperature of 410°C or lower, the first pipe and the chamber comprise at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel and a nickel-based alloy, and the second pipe comprises a nickel-based alloy (NT) satisfying Equation 1 below. T≤15μm

AMMONIA SUPPLY SYSTEM, HYDROGEN PRODUCTION SYSTEM, CARBON-FREE POWER GENERATION SYSTEM, AND FUEL CELL SYSTEM UTILIZING SAID AMMONIA SUPPLY SYSTEM

NºPublicación:  EP4711328A1 18/03/2026
Solicitante: 
SK INNOVATION CO LTD [KR]
SK Innovation Co., Ltd
EP_4711328_PA

Resumen de: EP4711328A1

Disclosed are an ammonia supply system, a hydrogen production system, a carbon-free power generation system and a fuel cell system. The ammonia supply system includes: an ammonia supply unit; an ammonia demand unit; a connection line that is arranged to connect the ammonia supply unit and the ammonia demand unit; a hydrogen supply unit; and one or more first hydrogen supply lines that are arranged to connect the hydrogen supply unit and the connection line, and are configured to supply a hydrogen gas stream, wherein the connection line includes a first pipe configured to be controlled to an average temperature of 410°C or lower and a second pipe configured to be controlled to an average temperature of greater than 410°C, and the second pipe includes a nickel-based alloy (NT) satisfying Equation 1 below. T≤15μm,

METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF HYDROGEN IN THE OXYGEN STREAM GENERATED BY A PEM CELL

NºPublicación:  EP4711497A1 18/03/2026
Solicitante: 
MICROPROGEL S R L [IT]
MicroPROGEL S.R.L
EP_4711497_PA

Resumen de: EP4711497A1

A method is described for detecting the presence of hydrogen in the oxygen stream generated by a PEM cell, wherein the PEM cell comprises a membrane permeable to H<sup>+</sup> ions , a first inlet conduit for water, a second outlet conduit for hydrogen, and a third outlet conduit for the generated oxygen. The hydrogen and the oxygen being produced by the molecular dissociation of water inside the PEM cell.In the method the temperature of a catalyst placed in contact with said oxygen stream, is detected.

ELECTROCHEMICAL REACTION DEVICE AND METHOD OF MANUFACTURING ELECTROCHEMICAL REACTION DEVICE

NºPublicación:  EP4711496A1 18/03/2026
Solicitante: 
TOSHIBA KK [JP]
KABUSHIKI KAISHA TOSHIBA
EP_4711496_PA

Resumen de: EP4711496A1

The electrochemical reaction device includes: an electrochemical reaction structure including a cathode, an anode, a diaphragm having a first surface on the cathode and a second surface on the anode, a cathode flow path, and an anode flow path; a first flow path through which a first fluid containing a reducible material to the cathode flow path flows; a second flow path through which a second fluid containing water to the anode flow path flows; a third flow path through which a third fluid containing the reduction product from the cathode flow path flows; and a fourth flow path through which a fourth fluid containing water and oxygen from the anode flow path flows. The diaphragm has concentration gradient in which a concentration of a chemical species decreases from the second surface to the first surface, the chemical species being configured to decompose, capture, or inactivate an active oxygen specie.

COMPOSITE PROTON EXCHANGE MEMBRANE AND CATALYST-COATED COMPOSITE PROTON EXCHANGE MEMBRANE

NºPublicación:  EP4709906A1 18/03/2026
Solicitante: 
UOP LLC [US]
UOP LLC
KR_20260010755_PA

Resumen de: CN121311631A

Composite proton exchange membranes are described. The composite proton exchange membrane comprises three layers, wherein the three layers comprise a proton exchange membrane layer, a continuous nonporous organic-inorganic composite coating layer and a continuous nonporous cross-linked polyelectrolyte multilayer coating. Catalyst coated membranes incorporating the composite proton exchange membranes and methods of making the composite proton exchange membranes are also described.

ELECTROLYSIS SYSTEM

NºPublicación:  EP4709907A1 18/03/2026
Solicitante: 
DCARB CLEANTECH SOLUTIONS CORP [CA]
DCARB AUSTRALIA PTY LTD [AU]
DCARB CleanTech Solutions Corp,
Dcarb Australia Pty Ltd
CN_121368648_PA

Resumen de: CN121368648A

The present invention relates to an electrolysis system comprising: a tank adapted to contain water or an aqueous solution; the electrolysis array comprises a conductive plate; the temperature-resistant cathode is close to but separated from the cathode end of the electrolysis array; a cell anode proximate but spaced apart from opposing anode ends of the electrolysis array; wherein a cathode terminal and an anode terminal of the electrolysis array are electrically connected to a cathode terminal and an anode terminal of a first power source adapted to provide direct current (DC) power thereto, respectively; the temperature-resistant cathode and the tank anode are electrically connected to a negative terminal and a positive terminal of a second power source adapted to provide DC power thereto, respectively; and at least the temperature resistant cathode is adapted to generate a plasma arc in the water or aqueous solution between the end of the temperature resistant cathode and the closest plate in the electrolysis array.

ELECTRODE CATALYST INK FOR WATER ELECTROLYSIS, ELECTRODE CATALYST, WATER ELECTROLYSIS CELL, AND WATER ELECTROLYSIS DEVICE

NºPublicación:  EP4711504A1 18/03/2026
Solicitante: 
PANASONIC HOLDINGS CORP [JP]
Panasonic Holdings Corporation
EP_4711504_PA

Resumen de: EP4711504A1

An ink 1a for water electrolysis electrode catalyst includes a catalyst 11, a support 15, an organic polymer 12, and a solvent 13 including water. The catalyst 11 includes at least one transition metal. The support 15 supports the catalyst 11 and includes a transition metal. The organic polymer 12 includes a water-insoluble polymer 12b and a nonionic water-soluble polymer 12a.

HEAT RESISTANT ALLOY HAVING NITRIDING RESISTANCE

NºPublicación:  EP4711483A1 18/03/2026
Solicitante: 
KUBOTA KK [JP]
Kubota Corporation
EP_4711483_PA

Resumen de: EP4711483A1

The present invention provides a heat-resistant alloy that is excellent in nitriding resistance and high-temperature creep rupture strength. The heat-resistant alloy of the present invention comprises, in mass %, C: 0.2% to 0.6%, Si: greater than 0% to 2.5% or less, Mn: greater than 0% to 2.0% or less, P: 0.03% or less, S: 0.03% or less, Ni: 33.0% to 50.0%, Cr: 24.0% to 50.0%, with the remainder being Fe and impurities, and optionally including: Nb: greater than 0% to 1.8% or less, Rare Earth Elements: greater than 0% to 0.5% or less, Ti: greater than 0% to 0.5% or less and/or Zr: greater than 0% to 0.5% or less, W: greater than 0% to 2.0% or less and/or Mo: greater than 0% to 0.5% or less.

Improvement of gas evolution in electrolysis

NºPublicación:  GB2644070A 18/03/2026
Solicitante: 
SCHLUMBERGER TECHNOLOGY BV [NL]
Schlumberger Technology B.V
GB_2644070_PA

Resumen de: GB2644070A

A system comprising an electrochemical half cell which operates to form a gas at a solid surface, which may be an electrode 54,55. The electrolyte liquid contains an additive which is a high molecular weight flexible linear polymer or viscoelastic linear surfactant. A flow path through the half cell 51L, 51R is configured to compel flow of liquid through the half cell 51L, 51R to make a succession of changes of direction. The electrolyte liquid is pumped through the half cell 51L, 51R at a rate which is sufficient that the additive and flow path configuration put the flowing electrolyte in a state of elastic turbulence which causes bubbles of gas to detach from the surface on which they are formed while they are still small freeing the surface for further reaction. The half cell 51L, 51R may be part of an electrolyser making hydrogen and oxygen from water.

ELECTROCHEMICAL DEVICE, IN PARTICULAR ELECTROLYSIS DEVICE

NºPublicación:  EP4709902A1 18/03/2026
Solicitante: 
QUEST ONE GMBH [DE]
Quest One GmbH
DE_102023112290_PA

Resumen de: WO2024230958A1

An electrochemical device (10'), with a cell stack consisting of a plurality of cell stack elements, with a force application unit (13) which exerts a force on the cell stack in order to press the cell stack elements of the cell stack fluid-tightly in sealing regions (17) of the cell stack, wherein the force application unit (13) is designed in such a manner that the force for pressing the cell stack acts on the cell stack and therefore on the sealing regions (17) of the cell stack depending on the operating state of the electrochemical device (10').

ELECTROLYSER CELL STACK

NºPublicación:  EP4711495A1 18/03/2026
Solicitante: 
AVL LIST GMBH [AT]
AVL FUEL CELL CANADA INC [CA]
AVL List GmbH,
AVL Fuel Cell Canada Inc
EP_4711495_PA

Resumen de: EP4711495A1

The present invention relates to an electrolyser cell stack (100) for producing a hydrogen-based e-fuel, including an electrochemical system (10) with a plurality of electrolyser cells for an electrochemical reaction of water with electric power, an electrical system (20) for supplying electric power to the stacked electrolyser cells, and a compression system (30) with compression plates (33) for compressing at least the electrochemical system (10) in a stacking direction (D). According to the invention, the electrochemical system (10) is divided into at least two parallel stacked sub-stacks (11) of the electrolyser cells arranged within an area (A) of the compression plates (33), for a common compression of all sub-stacks (11) by the same compression system (30).

CASING STRUCTURE DESIGN FOR ELECTROLYTIC CELLS

NºPublicación:  EP4709904A1 18/03/2026
Solicitante: 
VIERING JENTSCHURA & PARTNER MBB PATENT UND RECHTSANWAELTE [DE]
Viering, Jentschura & Partner mbB Patent- und Rechtsanw\u00E4lte
WO_2024231175_PA

Resumen de: WO2024231175A1

The present invention concerns composite casing structures for electrolytic cells wherein each casing structure is made of a plurality of casing components, optionally made of at least two different materials, which are subsequently joined together to form a structure suitable to house one or more of the following elements: electrodes, separators, bipolar elements, elastic elements and/or current collectors. The casing structure may be advantageously employed in electrolysers for high pressure alkaline water electrolysis.

NICKEL MOLYBDENUM CATALYSTS AND THEIR METHODS OF PREPARATION

NºPublicación:  EP4709905A1 18/03/2026
Solicitante: 
ECOLE POLYTECHNIQUE FED LAUSANNE EPFL [CH]
Ecole Polytechnique F\u00E9d\u00E9rale de Lausanne (EPFL)
CN_121443774_A

Resumen de: CN121443774A

The present invention relates to a method of synthesizing a transition metal catalyst consisting of electrodeposition on a substrate electrode from an electrolyte solution comprising at least one transition metal precursor wherein the electrodeposition is carried out at a deposition current density of 500 to 2000 mA/cm2. The invention also relates to a transition metal catalyst characterized in that it is stable on a base electrode at a current density of at least 400 A/cm2 for at least 30 minutes.

CHEMICAL DECOMPOSITION USING CATALYTIC REACTOR HEATED BY MAGNETIC INDUCTION

NºPublicación:  EP4711036A1 18/03/2026
Solicitante: 
TECHNIP ENERGIES FRANCE [FR]
Technip Energies France
EP_4711036_PA

Resumen de: EP4711036A1

A system can include a catalytic reactor heated using magnetic induction to perform a magnetically induced decomposition reaction. The catalytic reactor can include a housing coupled with a feedstock source to receive a flow of an inorganic compound in gaseous form that can flow through the catalytic reactor. The housing can include a metal-based catalyst selected to decompose the inorganic compound into one or more reaction products within a predefined temperature range. The metal-based catalyst can include a heating agent that can increase in temperature when exposed to a magnetic field. A coil can be positioned around the housing to provide the magnetic field to heat the metal-based catalyst using magnetic induction to be within the predefined temperature range.

电化学反应装置和电化学反应装置的制造方法

NºPublicación:  CN121674986A 17/03/2026
Solicitante: 
株式会社东芝
CN_121674986_PA

Resumen de: EP4711496A1

The electrochemical reaction device includes: an electrochemical reaction structure including a cathode, an anode, a diaphragm having a first surface on the cathode and a second surface on the anode, a cathode flow path, and an anode flow path; a first flow path through which a first fluid containing a reducible material to the cathode flow path flows; a second flow path through which a second fluid containing water to the anode flow path flows; a third flow path through which a third fluid containing the reduction product from the cathode flow path flows; and a fourth flow path through which a fourth fluid containing water and oxygen from the anode flow path flows. The diaphragm has concentration gradient in which a concentration of a chemical species decreases from the second surface to the first surface, the chemical species being configured to decompose, capture, or inactivate an active oxygen specie.

使用碱性介质的水电解槽堆

NºPublicación:  CN121693594A 17/03/2026
Solicitante: 
星门氢能解决方案有限公司
CN_121693594_PA

Resumen de: WO2025078381A1

The various embodiments of the present invention disclose a water electrolyser using alkaline medium, comprising: a first end plate and a second end plate and a plurality of cells stacked in-between the first and the second end plate. Each cell comprises an anode cell frame and a cathode cell frame, each cell frame further comprises a central opening, at least one inlet channel transversing through the cell frame, and at least one inlet pathway grooved in the cell frame for connecting the inlet channel to the central opening. The inlet pathway comprises an inlet orifice <b>characterized by</b> a minimum cross-sectional area in the inlet pathway. The cross-sectional area of the inlet channel in the stack is greater than the sum of the cross-sectional area of the plurality of inlet orifices in the stack by at least a predetermined factor, the predetermined factor being larger than 1 and smaller than or equal to 4.

一种电解槽部件的测试方法及测试系统

NºPublicación:  CN121678792A 17/03/2026
Solicitante: 
苏州莒纳新材料科技有限公司
CN_121678792_PA

Resumen de: CN119024088A

The invention provides a test system and method for evaluating an electrode for a hydrogen production electrolytic bath in a laboratory, and the test system at least comprises an electrode clamp which is used for clamping an electrode to be evaluated; the heat exchanger is connected to the electrode clamp, and electrolyte is preheated through the heat exchanger and then input into the electrode clamp; and a heating unit connected to the electrode holder to heat the electrode holder. According to the test system and method for the electrode for the hydrogen production electrolytic cell in the laboratory, the temperature of the electrode clamp and the electrolyte in the electrode clamp can be accurately controlled, the accuracy of the test result is improved, the energy consumption of the test system can be reduced, and the test efficiency is improved.

使用次磷酸钠置换和热解的用于碱性水电解中析氧反应的镍基磷化物及其制备方法

NºPublicación:  CN121693391A 17/03/2026
Solicitante: 
韩华思路信株延世大学校产学协力团
CN_121693391_PA

Resumen de: TW202508703A

The present disclosure relates to a method for preparing a nickel-based phosphide catalyst for oxygen evolution reaction in alkaline water electrolysis anode using sodium hypophosphite(NaH2PO2) substitution and pyrolysis.

用于制造膜电极组件的方法

Nº publicación: CN121693595A 17/03/2026

Solicitante:

株式会社化学

CN_121693595_PA

Resumen de: WO2025053532A1

The present invention relates to a membrane electrode assembly manufacturing method comprising the steps of: (S1) forming a first catalyst layer on the other surface of a separation membrane having a first carrier film attached to one surface thereof; (S2) attaching a second carrier film to the other surface of the separation membrane on which the first catalyst layer is formed; (S3) removing the first carrier film attached to one surface of the separation membrane; and (S4) forming a second catalyst layer on one surface of the separation membrane from which the first carrier film is removed, wherein the second carrier film includes a first area corresponding to the first catalyst layer on the other surface of the separation membrane, and a second area, which is the remaining area that excludes the first area, and the second area of the second carrier film is coated with an adhesive on a surface facing the other surface of the separation membrane on which the first catalyst layer is formed.

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