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1017
results.
Updated on
15/11/2026 [08:03:00]
Results 100 to 125 of 1017
Absstract of: US20260337791A1
An electrolysis cell for chlor-alkali or alkaline water electrolysis comprises two cell elements each defining an electrode chamber by providing a back wall and sidewalls of the electrode chambers, an electrode accommodated in each of the electrode chambers, a sheet-like separator extending in a height direction and a width direction of the electrolysis cell, the separator being interposed in a joint between the two cell elements and providing a separating wall between the electrode chambers, and a plurality of support members supporting at least one of the electrodes on the respective back wall, wherein the support members each comprise two support portions standing upright on the back wall and extending in the height direction of the electrolysis cell, and two foot portions attached to the respective support portion in an angled manner for a planar contact with the back wall, wherein the support portions of the support members are connected to each other by an arched portion being arched outwardly towards the supported electrode and providing a resilient bearing surface for the supported electrode, wherein the bearing surface is enlarged upon inwards-directed deflections of the arched portion.
Absstract of: US20260337801A1
The present invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water using a LiSICon membrane. The problem addressed by the present invention is that of specifying a process which is operable economically even on an industrial scale. The process shall especially exhibit a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities harmful to LiSICon materials. A particular aspect of the process is that the cell simultaneously separates off the lithium via the membrane and effects electrolysis of water. An essential aspect of the process is that the electrochemical process is performed in a basic environment, more precisely at pH 9 to 13. The pH is adjusted by addition of a basic compound to the feed.
Absstract of: US20260337797A1
The present invention discloses a water electrolysis device including a metal particle fluidic electrode. The water electrolysis device of the present invention includes a cathode; a first fluid channel formed on the cathode; a cation exchange membrane (CEM) formed on the first fluid channel; a second fluid channel formed on the cation exchange membrane; and an anode formed on the second fluid channel, wherein the second fluid channel includes metal particles and is used as a metal particle fluidic electrode.
Absstract of: JP2024152147A
To provide a reformer that allows for the reduction in the energy consumption of a heating device (heater) provided in the reformer for accelerating a reforming reaction from a raw material gas to a reformed gas, which is an endothermic reaction, by using a catalyst.SOLUTION: A reformer comprises a catalyst container that includes a section where a catalyst layer is formed and is configured so that a reformed gas is generated when a raw material gas flowing in from one end face of the catalyst layer passes through the catalyst layer and the reformed gas flows out from the other end face of the catalyst layer, and a plurality of reformed gas pipes through the catalyst layer and through which the reformed gas flows. The heating device heats the reformed gas in a section from flowing out of the catalyst layer to flowing into the plurality of reformed gas pipes.SELECTED DRAWING: Figure 1
Absstract of: US20260335855A1
A system includes an allocation control system configured to receive oxygen gas, methane gas, carbon dioxide gas, and steam, determine a proper ratio of the oxygen gas, the methane gas, the carbon dioxide gas, and the steam, and mix the oxygen gas, the methane gas, the carbon dioxide gas, and the steam according to the determined ratio to generate a mixture stream. The system further includes a syngas and carbon generator configured to: receive the mixture stream from the allocation control system, and generate syngas and solid carbon using the received mixture stream, wherein the syngas comprises hydrogen gas and carbon monoxide gas. The proper ratio of the oxygen gas, the methane gas, the carbon dioxide gas, and the steam is determined using an atomic tracking model based on a predetermined condition for the syngas and the solid carbon to be generated by the syngas and carbon generator.
Absstract of: US20260337015A1
An energy system includes a natural or enhanced geothermal reservoir having a subsurface rock formation and an energy source integrated into the natural or enhanced geothermal reservoir configured to convert heat to energy. The energy source can include at least one of: a hydrogen source included in the subsurface rock formation, a methane or other hydrocarbon gas source, and a dihydrogen sulfide source. The dihydrogen sulfide and the methane or other hydrocarbon gas source can be converted to hydrogen and an associated carbon dioxide or sulfur reaction product can also be sequestered by mineralization in the subsurface rock formation following the conversion.
Absstract of: US20260341623A1
The embodiments of the present application provide an oxide photocathode material and a method for fabricating the photocathode. The photocathode material includes an ATiO3-type material with a perovskite structure, where A is an alkaline earth metal element. The novel photocathode material provided by the embodiments of this application is an alkaline earth-titanium oxide, which features simple fabrication, activation, and reactivation processes, high photoelectric emission brightness, excellent monochromaticity, high collimation, stable performance, and reusability. Moreover, this photocathode material does not contain precious metals or harmful elements, has low production costs, and enables controllable mass production.
Absstract of: US20260337802A1
The present invention provides a pretreatment method for preparing ultra-pure hydrogen and ultra-pure oxygen, comprising steps: before desalinated water entering an electrolytic cell, desalinated water being fed into the top of a storage tank through a desalinated water pipe; at the same time, using hydrogen gas or oxygen gas as a stripping gas, being fed into the top of a storage tank through a gas supply pipe for performing atomization and stripping pretreatment of desalinated water; before desalinated water entering an electrolytic cell, hydrogen gas or oxygen gas being fed into the bottom of a storage tank through a gas supply pipe, using hydrogen gas or oxygen gas to perform bubbling, redundant stripping, and to provide a slightly-positive pressure blanketing on pre-treated desalinated water; performing water-mist separation on the exhaust of a storage tank, of which the water in supersaturated water vapor being captured and recycled to a storage tank. In the pretreatment method provided by the present invention, the desalinated water after stripping subsequently enters the electrolytic cell to be decomposed into hydrogen and oxygen, and then through catalytic deoxygenation/dehydrogenation, condensation drainage and molecular sieve adsorption drying, ultrapure hydrogen meeting the requirements of GB/T 3634.2-2011 and ultra pure oxygen meeting the requirements of GB/T 14599-2008 are produced, and at the same time, the production, equipment and maintenance costs are greatl
Absstract of: US20260337798A1
The invention provides bi-functional catalysts and electrodes based on Earth abundant metals, catalyzing cathodic hydrogen evolution and anodic oxygen evolution. The catalysts and electrodes are efficient for various electrochemical applications, including water splitting.
Absstract of: US20260337792A1
The invention relates to an electrolysis system for generating hydrogen and oxygen as product gases, including an electrolysis module and a process unit, wherein the process unit has a reactant line for supplying process water and a product line, each of which is connected to the electrolysis module, and the process unit is equipped with a thermally insulating insulation device, including a thermal insulating material, such that a slow cooling of the process water is produced during a standstill operation.
Absstract of: WO2026222829A1
The present invention relates to the technical field of electrolyzers, and specifically relates to an alkaline water electrolyzer for hydrogen production provided with auxiliary gasket elements. Said alkaline water electrolyzer comprises auxiliary gasket elements arranged between an end compression plate and an end electrode plate of an alkaline water electrolyzer for hydrogen production, the auxiliary gasket elements being elastic, and the auxiliary gasket elements being not in contact with an internal electrolyte of the alkaline water electrolyzer for hydrogen production. The present invention can optimize and improve the stress state of sealing gaskets, thereby addressing the problem that sealing gaskets are prone to damage due to pressure fluctuations in electrolyzers and thermal expansion and contraction which are caused by frequent start-ups and shutdowns. In particular, the present invention solves the problem that sealing gaskets adjacent to end electrode plates are more prone to failure and damage, thereby improving the operational reliability and safety of alkaline water electrolyzers for hydrogen production.
Absstract of: EP4831113A1
The invention relates to an ammonia cracking and/or firing installation (1) comprising:- a pressure equipment (2) for containing liquid ammonia;- a basin (3) positioned beneath the pressure equipment (2), configured to collect and contain liquid ammonia in the event of a leak from the pressure equipment (2);- a safety enclosure (4) surrounding the pressure equipment (2) and arranged to contain ammonia spurts and any gaseous ammonia resulting from a liquid or gas leak from the pressure equipment (2).
Absstract of: EP4831328A1
0001 A stainless steel for solid oxide electrolysis cells contains, on a mass basis, C: 0.030% or less, Si: 0.20% or less, Mn: less than 0.30%, P: 0.050% or less, S: 0.0030% or less, Cr: from 19.0% to 24.0%, Mo: 2.5% or less, Al: from 0.01% to 0.15%, Mg: from 0.0001% to 0.0100%, N: 0.030% or less, Nb: 0.40% or less, Ti: 0.40% or less, Ni: 1.00% or less, and Cu: 1.00% or less, with the balance being Fe and impurities. In the stainless steel for solid oxide electrolysis cells, an average particle diameter of inclusions is from 0.2 µm to 3.0 µm, a number density of the inclusions is from 30 to 150 particles/mm<2>, an aspect ratio of the inclusions is more than 1.0 and less than 3.0, and a proportion, among inclusions, of Mg-containing inclusions having an Mg concentration of 0.5 mass% or more is 0.30 or more.
Absstract of: WO2025131585A1
The invention relates to a hydrogen production facility (222) comprising a hydrogen recirculation assembly (100, 200). The hydrogen production facility (222) comprises at least one main compressor (226, 426) which is fluidically connected to at least one electrolyzer (224, 424) via a main hydrogen flow fluid network (232), wherein the hydrogen recirculation assembly (100, 200) comprises a first fluid inlet (102, 202) which can be connected to a first hydrogen leakage point (240) of the hydrogen production facility (222) and which is connected to at least one collecting container (106, 206) of the hydrogen recirculation assembly (100, 200) via at least one first fluid connection (110, 210); a second fluid inlet (104, 204) which can be connected to a second hydrogen leakage point (242) of the hydrogen production facility (222) and which is connected to the collecting container (106, 206) via at least one second fluid connection (112, 212); at least one recirculation compressor (108, 208) which is connected to the collecting container (106, 206) via at least one third fluid connection (114), and at least one first fluid outlet (118, 218) which can be connected to a main hydrogen flow fluid network (232) of the hydrogen production facility (222) and which is connected to the recirculation compressor (108, 208) via at least one fourth fluid connection (116).
Absstract of: EP4831354A1
0001 An embodiment of the present invention provides a catalyst composition comprising: a catalyst comprising a platinum group element; and a support comprising a post-transition metal and a metal oxide. In addition, other embodiments of the present invention provide: an anode comprising the catalyst composition; and water electrolysis comprising the anode.
Absstract of: WO2025131321A1
The invention relates to a cell unit (12) comprising a cell layer (18) and an interconnector plate (28), wherein a periphery (22) of the cell layer (18) is attached to a periphery (30) of the interconnector plate, wherein a central portion (24) of the cell layer and a central portion (32) of the interconnector plate define a fluid volume (34) therebetween, and wherein a fluid guidance insert (52) is disposed in the fluid volumes, said fluid guidance insert defining a fluid channel system for conveying fluid between at least one fluid port of the cell unit and the fluid volume.
Absstract of: WO2025131972A1
The invention relates to a method for preparing a membrane which comprises the following steps, in succession: preparing a layer of polyethersulfone nanofibres by electrospinning a polyethersulfone solution; heating the nanofibres to soften them; cooling the nanofibres; and impregnating the nanofibres with an ionomer to form the membrane. A membrane of this kind consists of polyethersulfone nanofibres that have points at which they join to the nanofibres adjacent to them. The membrane has ionic conductivity properties and can be used in a fuel cell or an electrolyser.
Absstract of: WO2025129233A1
A process, a device and/or a system for flow based electrocatalytic chemical reactions, particularly hydrogenation reactions in a pH neutral or pH alkaline, and preferably, a high pH electrolyte, that is, an aqueous solution including a reactant, where electrolyte is either a water-in-oil emulsion or an oil- in-water emulsion.
Absstract of: WO2025132918A1
Disclosed is an electrolysis cell element (1) comprising, a support structure (2) comprising an inner aperture (3), and a bipolar plate (4) being suspended in the inner aperture (3). The support structure (2) comprises a structure core (5) and a coating (6), wherein the coating (6) includes a thermoplastic material at least partly enclosing the structure core (5) and wherein the bipolar plate (4) is suspended in the inner aperture (3) by means of the coating (6). An electrolysis cell stack (10) and use of an electrolysis cell stack (10) is also disclosed.
Absstract of: EP4831353A1
0001 The present disclosure relates to: a catalyst for an oxygen evolution reaction of a water electrolysis cell; a method for manufacturing same; and a membrane-electrode assembly for a water electrolysis cell, and a water electrolysis cell, comprising same. More specifically, by manufacturing a catalyst for oxygen evolution reaction of a water electrolysis cell, having a structure in which active particles fill pores between nanoparticles of a support assembly manufactured in various forms or penetrate into the support assembly while being supported by the support assembly, performance is improved while reducing the amount of noble metal used. The active particles have stronger bonds than a form in which active particles are simply supported, and thus the active particles and the support assembly can have improved durability.
Absstract of: EP4830836A1
The present disclosure relates to a method for preparing a catalyst for an oxygen evolution reaction in a water electrolysis cell, and a water electrolysis cell membrane-electrode assembly and a water electrolysis cell, which comprise the catalyst prepared using same, and the method for preparing a catalyst for an oxygen evolution reaction in a water electrolysis cell comprises preparing a plurality of noble metal oxide seeds, and preparing a noble metal oxide aggregate by using the plurality of noble metal oxide seeds, thereby increasing the surface area thereof by means of pores between noble metal oxide particles, and thus performance and durability can be improved.
Absstract of: EP4831351A1
0001 The present disclosure relates to a catalyst for an oxygen evolution reaction of a water electrolysis cell, a manufacturing method therefor, a membrane-electrode assembly for a water electrolysis cell including same, and a water electrolysis cell. The catalyst for the oxygen evolution reaction of a water electrolysis cell includes a heterogeneous noble metal composite which has a nanowire shape and includes different first and second noble metal oxides in a node structure, whereby the catalyst can reduce the amount of the noble metals used while improving performance and can enhance performance and durability depending on the types and lengths of the noble metals forming the heterogeneous noble metal composite.
Absstract of: WO2025132365A1
The invention relates to a device/method for capturing/converting CO2, comprising/using a CO2 capturing unit (2), a water electrolysis unit (5), an RWGS unit (8), an FT unit (13), a unit for converting by-products into syngas (28) and a hydrogen unit (20), in which a carbon dioxide separation unit (34) is arranged to: treat a first syngas (12) and a second syngas (29); produce a gaseous effluent depleted in carbon dioxide (18) and a gaseous effluent rich in carbon dioxide (35); and recycling the gaseous effluent rich in carbon dioxide (35) to the inlet of the RWGS section (8).
Absstract of: EP4831352A1
0001 The present disclosure relates to: a catalyst for an oxygen evolution reaction of a water electrolysis cell; and a membrane-electrode assembly for a water electrolysis cell, and a water electrolysis cell, comprising same. By modifying the surfaces of core particles included in the catalyst for an oxygen evolution reaction of a water electrolysis cell, so as to be hydrophobic, durability against water during a reaction can be improved, and at the same time bonding with ion conductor side chains can be increased, thereby improving performance and durability.
Nº publicación: EP4829117A1 28/10/2026
Applicant:
NEL HYDROGEN ELECTROLYSER AS [NO]
Nel Hydrogen Electrolyser AS
Absstract of: WO2025132935A1
Disclosed is an electrolysis cell stack (10) comprising a plurality of support structures (2) each including an inner aperture (3). The electrolysis cell stack (10) further comprises a plurality of cathodes (17), a plurality of anodes (18), a plurality of bipolar plates (4), a plurality of gas impermeable membranes (19), and pressing means 5 (20) arranged for pressing neighbouring support structures (2) of the plurality of support structures (2) against each other. Further, the electrolysis cell stack (10) comprises a liquid conduit (13) arranged between neighbouring support structures (2) of the plurality of support structures (2), wherein the liquid conduit (13) is arranged outside an outer periphery (40) of the inner aperture (3), deionized water (41) arranged 10 in the liquid conduit (13), and conductivity monitoring means (42) arranged for monitoring a conductivity of the deionized water (41). 0111 A method for detecting a leak in an electrolysis cell stack (10) and use of an electrolysis cell stack (10) is also disclosed.
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