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Electrolytic hydrogen

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LastUpdate Updated on 06/03/2026 [06:56:00]
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Publicaciones de solicitudes de patente de los últimos 60 días/Applications published in the last 60 days
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SYSTEM FOR COMPRESSING, STORING AND PROVIDING GAS AND CORRESPONDING METHOD

Publication No.:  US20260063249A1 05/03/2026
Applicant: 
LINDE GMBH [DE]
Linde GmbH
US_20260063249_PA

Absstract of: US20260063249A1

A system for compressing, storing and providing gas, in particular hydrogen, having a compressing device, a storage device, an expansion machine and a refrigeration machine, in particular an absorption-type refrigeration machine, wherein the system is configured to compress received gas by means of the compressing device, in particular in multiple stages, and to store the compressed gas in the storage device, wherein the system is configured to refrigerate the compressing device using the refrigeration machine and the expansion machine.

PLANT NETWORK INCLUDING AN ELECTROLYSIS PLANT AND A POWER SUPPLY SOURCE

Publication No.:  US20260066650A1 05/03/2026
Applicant: 
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
US_20260066650_PA

Absstract of: US20260066650A1

A plant network has an electrolysis plant, a power supply source, and a central supply line connected to a DC voltage output of the power supply source for feeding a direct current into the central supply line. The electrolysis plant is connected to a central DC network for a high voltage via the central supply line. The power supply source has a wind turbine as a power generator and a rectifier with a DC voltage output for the high voltage. An energy storage system can feed a direct current into the central supply line. A DC supply network controls three different DC voltage levels independently, namely, a first DC voltage for charging and discharging an electrical storage battery of the energy storage system, a DC-Bus high voltage on the central supply line, and a DC operating voltage of the electrolysis plant.

ELECTROLYSER UNIT COMPRISING A PLURALITY OF INDIVIDUAL ELECTROLYSER STACKS AND METHOD FOR CONNECTING ELECTROLYSER STACKS TO FORM UNITS

Publication No.:  US20260062820A1 05/03/2026
Applicant: 
GREEN HYDROGEN SYSTEMS AS [DK]
GREEN HYDROGEN SYSTEMS A/S
US_20260062820_PA

Absstract of: US20260062820A1

In a method for connecting a pair of electrolyser stacks with electrolyte, electric current and gas drain piping, each pair of stacks of the electrolyser: through interconnection endplates are supplied with alkaline electrolyte at elevated pressure by common electrolyte supply pipes and further, through the interconnection endplate drain off oxygen gas containing electrolyte, and hydrogen gas containing electrolyte, to common gas separation vessels for oxygen and hydrogen respectively, pull first electrically interconnected current injection electrodes adjacent to interconnection endplates to zero electrical potential through a zero potential conductor, and supply second current injection electrodes placed adjacent to distal endplates with electric current at potentials equally higher and lower respectively than the zero potential at the first electrodes.

ELECTROLYZER WITH MINIMISED SHUNT-CURRENTS AND USE THEREOF

Publication No.:  AU2024337380A1 05/03/2026
Applicant: 
STIESDAL HYDROGEN AS
STIESDAL HYDROGEN A/S
AU_2024337380_PA

Absstract of: AU2024337380A1

An electrolyzer stack in which gas passages (16C, 16D) and thin and long shunt-current reducing liquid passages (16A, 16B) are provided inside a gasket that is a combination of a first and a second gasket part (12A, 12B) for ease of assembly.

Energy storage system

Publication No.:  GB2643827A 04/03/2026
Applicant: 
LINA ENERGY LTD [GB]
Lina Energy Ltd
GB_2643827_PA

Absstract of: GB2643827A

An energy storage system (60) comprises a high temperature electrolyser (70), and a battery pack (65) with cells (10) that comprise a ceramic electrolyte, means (75) to supply steam at above 400°C to the high temperature electrolyser (70), and means to carry a gas stream (77) containing hydrogen away from the high temperature electrolyser (70). The system (60) includes means (78, 82) to maintain the battery pack at an operating temperature above 170°C by use of heat from the high temperature electrolyser (70). The system (60) may be used in conjunction with a renewable energy source (62) of variable power output.

ELECTROCHEMICAL DEVICE

Publication No.:  EP4702605A1 04/03/2026
Applicant: 
SOLYDERA SA [CH]
SolydEra SA
KR_20260003661_PA

Absstract of: MX2025012716A

An electrochemical device including: - at least one electrochemical cell, - two fluid lines, - a pre-heating unit for preheating at least one of the fluids before feeding the at least one fluid to the system, a load device for electrically oading the at least one electrochemical cell, - temperature sensors, - pressure sensors for detecting a pressure and/or a differential pressure, the device comprises a control management system. The control management system : - is configured to keep a temperature gradient between the inlet side and the exhaust side of at least one fluid line below a predefined system critical temperature gradient and/or to control a minimum temperature and/or a maximum temperature cross the electrochemical device compared with a pre-defined temperature reference; and/or - is configured to control the di f ferential pressure between the two fluid lines; and/or - is configured to control the pressure drop of at least one fluid line; and/or - is configured to control at least one maximum pressure and/or at least one minimum pressure of the fluid in the electrochemical device compared to a pre-defined pressure reference.

COATING OF CATION EXCHANGE MEMBRANES

Publication No.:  EP4702604A1 04/03/2026
Applicant: 
EVONIK OPERATIONS GMBH [DE]
Evonik Operations GmbH
KR_20260003684_PA

Absstract of: AU2024262986A1

The invention relates to the coating of cation exchange membranes with catalytically active substances. The catalytically actively coated cation exchange membranes are used in electrochemical cells, especially in fuel cells (proton exchange membrane fuel cells - PEMFC) or in electrolysers for water electrolysis (polymer electrolyte membrane water electrolysis - PEMWE). In order to counteract the disadvantages of conventional decal processes, an alterative process for coating cation exchange membranes was sought which enables the transfer of electrocatalysts without the need for high temperatures, high pressures and PFAS-based substrates. It was surprisingly found that catalyst layers which are treated, shortly before the transfer step, with a polymer-swelling solvent conducting the cations can be transferred far more easily.

CELL-LAYER, FRAME AND BIPOLAR-PLATE FOR AN ELECTROLYSIS CELL STACK

Publication No.:  EP4702173A1 04/03/2026
Applicant: 
BOSCH GMBH ROBERT [DE]
Robert Bosch GmbH
CN_121013919_PA

Absstract of: CN121013919A

The invention relates to a cell layer (200) for an electrolysis cell stack (60) of an electrolysis device group (51), in particular a water electrolysis device group (51), comprising a frame (250), in particular a cathode frame (250), in the main central region of which a transport structure (210) of the electrolysis cell stack (60) is accommodated, said frame (250) comprising at least one circumferentially open through-passage opening (256), in which the transport structure (210) of the electrolysis cell stack (60) is accommodated, the access through hole is used for electrolyzing an effluent product medium (56) of the cell stack (60); a fluid flow path (257) is arranged between the inner edge of the frame (250) and the outer edge of the transport structure (210) beside the product medium passage through-holes (256), the fluid flow path (257) leading to at least one of the product medium passage through-holes (256).

ELECTRODE FOR GASEOUS EVOLUTION IN ELECTROLYTIC PROCESS

Publication No.:  EP4702178A1 04/03/2026
Applicant: 
INDUSTRIE DE NORA SPA [IT]
Industrie De Nora S.P.A
KR_20260003014_A

Absstract of: AU2024263112A1

The present invention relates to an electrode and in particular to an electrode suitable for gas evolution comprising a metal substrate and a catalytic coating. Such electrode can be used as an anode for the development of oxygen in electrolytic processes such as, for example, in the alkaline electrolysis of water.

A METHOD FOR STORING HYDROGEN IN A REACTOR OR A SYNTHESIS LOOP

Publication No.:  EP4701983A1 04/03/2026
Applicant: 
TOPSOE AS [DK]
Topsoe A/S
WO_2024223472_A1

Absstract of: WO2024223472A1

A method for storing hydrogen in a reactor or a synthesis loop comprising the steps of (a) providing a gaseous stream of a reaction compound; (b) providing an excess of a hydrogen stream as required for stoichiometric molar ratio of reactants to hydrogen in the synthesis loop or reactor from an electrolysis unit; (c) storing the excess of hydrogen provided in step (b) by introducing at least an amount of the hydrogen stream into the gaseous stream of a reaction compound and to provide a mixed stream of hydrogen and gaseous reaction compound with at least 25 mol % excess hydrogen than what is required for a reaction of the reaction compound with hydrogen in the hydrogen stream; (d) introducing the mixed stream into the reactor or the synthesis loop; (e) withdrawing a mixed stream of gaseous reaction product and unreacted gaseous hydrogen and reaction compound from the reactor or the synthesis loop; (f) separating the reaction product from the unreacted gaseous hydrogen and reaction compound (g) recycling all or a part of unreacted amounts of hydrogen and reaction compound to the reactor or synthesis loop.

ELECTROCHEMICAL STACK AND MOUNTING ASSEMBLY FOR A STACK OF THIS TYPE

Publication No.:  EP4702606A1 04/03/2026
Applicant: 
BOSCH GMBH ROBERT [DE]
Robert Bosch GmbH
KR_20260002996_PA

Absstract of: WO2024223362A1

The invention provides an electrochemical stack (1) comprising a plurality of electrochemical cells (2) oriented horizontally and arranged between a top plate (4) and a bottom plate (3) of the stack (1), wherein the top plate (4) and the bottom plate (3) are braced relative to one another by a bracing means (5). At least one connection for supplying gaseous and/or liquid media to or removing them from the electrochemical cells (2) is provided on the top plate (4). The top plate (4) has suspension means (17) configured to fasten the electrochemical stack (1) to a frame (15), wherein the bottom plate (3) is free-floating. The mounting assembly for mounting the electrochemical stack comprises a frame (15), on which the electrochemical stack (1) rests with its suspension means (17) such that the bottom plate (3) is free-floating and the electrochemical cells (2) are oriented horizontally.

SOC STACK COMPRISING CONNECTION PLATE

Publication No.:  EP4702174A1 04/03/2026
Applicant: 
TOPSOE AS [DK]
Topsoe A/S
KR_20260003730_PA

Absstract of: CN121039328A

A solid-state oxide cell stack has at least one connection plate between the solid-state oxide cell stack and adjacent end plates, between two adjacent end plates, and/or between adjacent five solid-state oxide cell sub-stacks.

水电解池

Publication No.:  CN121593096A 03/03/2026
Applicant: 
丰田自动车株式会社
CN_121593096_PA

Absstract of: US20260055516A1

A water electrolysis cell includes a membrane-electrode assembly, a frame body made of resin that is provided along a peripheral edge of the membrane-electrode assembly, and a first separator and a second separator that face each other through the membrane-electrode assembly and the frame body and are joined to each other by the frame body. An outer peripheral portion of the membrane-electrode assembly is extended to between a first face of the frame body and the first separator. A surface of the first face includes an antioxidant.

用于水电解槽的膜-电极组件

Publication No.:  CN121605217A 03/03/2026
Applicant: 
庄信万丰氢能科技有限公司
CN_121605217_PA

Absstract of: AU2024324493A1

A membrane-electrode assembly for a water electrolyser is provided. The membrane- electrode assembly comprises a polymer electrolyte membrane with a first face and a second face; an anode catalyst layer on the first face of the membrane, the anode catalyst layer comprising an oxygen evolution reaction catalyst; and a porous web of polymer fibres in contact with the anode catalyst layer, the polymer fibres comprising a conductive metal additive.

用于在电解系统中使用的污染缓解系统

Publication No.:  CN121593097A 03/03/2026
Applicant: 
新氢能知识产权有限责任公司
CN_121593097_PA

Absstract of: US20260049408A1

An electrolysis system includes an electrolyzer stack and a contamination mitigation system. The electrolyzer stack includes an injection port fluidly connected with a cathode compartment of the electrolyzer stack. The contamination mitigation system is configured to remove ions from the electrolyzer stack to mitigate ion contamination in the electrolyzer stack. The contamination mitigation system includes a storage tank including formic acid therein and an injection line fluidly coupled between the storage tank and the injection port. The injection line is configured to direct the formic acid from the storage tank to the injection port for injection into the cathode compartment of the electrolyzer stack.

SOC STACK COMPRISING CONNECTION PLATE

Publication No.:  MA73371A1 27/02/2026
Applicant: 
TOPSOE AS [DK]
TOPSOE A/S
MA_73371_A1

Absstract of: MA73371A1

A Solid Oxide Cell stack has at least one connection plate between the solid oxide cell stack and an adjacent end plate, two adjacent end plates and/or between adjacent solid oxide cell sub-stacks.

アンモニアクラッキング反応用三重金属触媒、その製造方法、及びそれを用いた水素製造方法

Publication No.:  JP2026507203A 27/02/2026
Applicant: 
ヒソンカタリスツコーポレイション
JP_2026507203_PA

Absstract of: KR20240154110A

The present invention relates to a method for preparing a complex metal catalyst in the form of a tri-metal of ruthenium, yttrium, and potassium by using a thermally transformed delta-alumina support and to a method for preparing hydrogen through an ammonia cracking reaction using the same. An ammonia cracking catalyst according to the present invention adjusts the ratio of ruthenium/potassium + yttrium, along with a thermally transformed alumina support in a specific phase, even when using a low content of ruthenium metal, minimizes the contents of chlorine and nitrogen compounds, which are impurities in the catalyst, and localizes active metals in the catalyst, thereby achieving a very high ammonia conversion rate and hydrogen production efficiency even at low temperatures, compared with a catalyst having the same content of the ruthenium metal.

アンモニア脱水素用触媒、その製造方法、及びこれを用いた水素製造方法

Publication No.:  JP2026506921A 27/02/2026
Applicant: 
エイチディーヒュンダイオイルバンクカンパニーリミテッド
JP_2026506921_A

Absstract of: CN120857975A

The invention discloses a catalyst for ammonia dehydrogenation, a preparation method thereof and a method for preparing hydrogen by using the catalyst. The disclosed catalyst for ammonia dehydrogenation comprises a clay, and an alkali metal and ruthenium impregnated in the clay.

ナノ金属酸化物および水素の製造方法

Publication No.:  JP2026034357A 27/02/2026
Applicant: 
真環科技股▲ふん▼有限公司
JP_2026034357_A

Absstract of: US20260048995A1

A method for manufacturing nano metal oxides and hydrogen includes the following steps: Step A, providing a first reactor, and placing a metal material, an alcohol compound, and a first catalyst in the first reactor and applying heating thereto for reacting to generate a metal alkoxide compound, while simultaneously generating a substantial amount of hydrogen; and Step B, providing a second reactor, and, after the metal material in the first reactor has fully reacted in Step A, transferring remaining solution in the first reactor into the second reactor, and adding a second catalyst and a controlled amount of water, and applying appropriate heating to generate nano metal oxide in powder form. As such, effects of significant reduction of production cost, enhancement of safety, widespread application of hydrogen fuel cells, extremely low carbon emissions, being defined as “green hydrogen”, and reduction of storage costs and risks can be achieved.

ELEKTROLYSEVORRICHTUNGSBETRIEBSSYSTEM

Publication No.:  DE102025133002A1 26/02/2026
Applicant: 
DENSO CORP [JP]
DENSO CORPORATION
DE_102025133002_PA

Absstract of: DE102025133002A1

Ein Elektrolysevorrichtungsbetriebssystem beinhaltet eine Elektrolysevorrichtung, eine Steuereinheit, eine Zielgesundheitszustandswerteingabeeinheit und eine Steuerparameterberechnungseinheit. Die Elektrolysevorrichtung weist eine Vielzahl von Elektrolyse-Stacks auf, in denen eine Vielzahl von Elektrolysezellen, die Wasserstoff durch Elektrolyse von Wasser erzeugen, gestapelt sind. Die Steuereinheit steuert ein gesteuertes Objekt basierend auf einem Steuerparameter, der den Gesundheitszustand des gesteuerten Objekts beeinflusst. Die Zielgesundheitszustandswerteingabeeinheit ermöglicht es einem Systembenutzer, einen Zielgesundheitszustandswert einzugeben, der ein Zielwert für den Gesundheitszustand ist. Die Steuerparameterberechnungseinheit berechnet einen Steuerparameter des gesteuerten Objekts basierend auf dem Zielgesundheitszustandswert. Das gesteuerte Objekt ist die Elektrolysevorrichtung.

RENEWABLE ENERGY SOURCE USING PRESSURE DRIVEN FILTRATION PROCESSES AND SYSTEMS

Publication No.:  AU2024327448A1 26/02/2026
Applicant: 
IDE WATER TECH LTD
IDE WATER TECHNOLOGIES LTD
AU_2024327448_PA

Absstract of: AU2024327448A1

The present invention relates generally to the production of a desalinated, filtrated or other way treated water simultaneously with generation of renewal energy source, in particular hydrogen, using osmotic and/or gauge pressure driven filtration processes and systems. The co-generation of hydrogen 11 from water 8 produced during pressure driven water desalination/filtration processes, such as reverse osmosis, forward osmosis, pressure retarded osmosis or ultrafiltration. A small part of feed, raw saline solution and/or permeate involved in a desalination/filtration processes is subjected to electrolysis thereby splitting the water to produce hydrogen. This is achieved by the provision of novel RO type semi- permeable membranes and UF type membrane that incorporate electrodes 9, 10 within the membrane to allow splitting of the water via electrolysis.

HYDROGEN EVOLUTION ELECTROCATALYST, PREPARATION METHOD THEREFOR, AND USE THEREOF

Publication No.:  WO2026040290A1 26/02/2026
Applicant: 
PETROCHINA SHENZHEN NEW ENERGY RES INSTITUTE CO LTD [CN]
PETROCHINA COMPANY LTD [CN]
\u4E2D\u77F3\u6CB9\u6DF1\u5733\u65B0\u80FD\u6E90\u7814\u7A76\u9662\u6709\u9650\u516C\u53F8,
\u4E2D\u56FD\u77F3\u6CB9\u5929\u7136\u6C14\u80A1\u4EFD\u6709\u9650\u516C\u53F8
WO_2026040290_PA

Absstract of: WO2026040290A1

A hydrogen evolution electrocatalyst, a preparation method therefor, and the use thereof. The hydrogen evolution electrocatalyst comprises a nickel foam substrate, a Ni3S2 nanosheet layer and a graphdiyne coating layer; at least part of the outer surface of the nickel foam substrate is provided with the Ni3S2 nanosheet layer; nickel atoms in the Ni3S2 nanosheet layer come from the nickel foam substrate; at least part of the outer surface of the Ni3S2 nanosheet layer is provided with the graphdiyne coating layer. The hydrogen evolution electrocatalyst has the characteristic of high catalytic activity.

Device And Method For Investigating Chemical Processes

Publication No.:  US20260054247A1 26/02/2026
Applicant: 
HTE GMBH THE HIGH THROUGHPUT EXPERIMENTATION COMPANY [DE]
HTE GMBH THE HIGH THROUGHPUT EXPERIMENTATION COMPANY
US_20260054247_PA

Absstract of: US20260054247A1

The invention relates to a device, stacked plate reactor and to a method for investigating chemical processes to be carried out simultaneously or almost at the same time on a large number of functional element variations of the process parameters.

PROCESSES FOR PREPARING LITHIUM HYDROXIDE

Publication No.:  US20260055526A1 26/02/2026
Applicant: 
NEMASKA LITHIUM INC [CA]
NEMASKA LITHIUM INC
US_20260055526_PA

Absstract of: US20260055526A1

There are provided system for preparing lithium hydroxide from an aqueous composition comprising a lithium compound and use of the system thereof to prepare lithium hydroxide, the system comprising an electrochemical cell, a pH probe and at least one inlet for receiving acid or base for maintaining pH. For example, the lithium compound can be lithium sulphate and the aqueous composition can be at least substantially maintained at a pH having a value of about 2 to about 4.

Pure-Phase Cubic Ni1-xMox Alloy Nanoparticles as Low-Cost and Earth Abundant Electrocatalysts

Nº publicación: US20260055524A1 26/02/2026

Applicant:

VIRGINIA COMMONWEALTH UNIV [US]
VIRGINIA COMMONWEALTH UNIVERSITY

US_20260055524_PA

Absstract of: US20260055524A1

Low-cost and earth abundant, Ni1-xMox alloy nanocrystals, with sizes ranging from 18-43 nm and varying Mo composition (0.0-11.4%), were produced by a colloidal chemistry method for alkaline HER reactions. For a water splitting current density of −10 mA/cm2, these alloys demonstrate over-potentials of −62 to −177 mV, which are comparable to commercial Pt-based electrocatalysts (−68 to −129 mV). The cubic Ni0.934Mo0.066 alloy nanocrystals exhibit the highest activity as alkaline HER electrocatalysts, outperforming commercial Pt/C (20 wt %) catalyst.

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