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361
resultados
Última actualización
29/01/2026 [07:16:00]
Resumen de: EP4685269A2
The present disclosure relates to an electrolyzer cell. A ring-shaped skeleton is provided between a first sealing ring and a second sealing ring of a sealing gasket, which is able to support the sealing gasket well, avoiding problems such as not fitting in place and excessive compression deformation of the sealing gasket. In addition, in the present disclosure, the sealing gasket, the ring-shaped skeleton, a bipolar plate, nickel meshes are combined to form the electrolyzer cell, which can effectively improve the assembly efficiency, the assembly precision and the sealing of an alkaline water electrolyzer. The electrolyzer cell has a reasonably designed structure, is suitable for long-term use in working environments with alternating pressure and temperature changes, has a long service life, and can be reused.
Resumen de: EP4685273A1
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.
Resumen de: WO2024193977A1
The invention relates to an offshore hydrogen production system (100, 200), comprising a plurality of offshore hydrogen production wind turbines (102, 202, 240), in each case comprising a wind turbine (106, 206) and a micro-electrolysis system (104, 204), at least one first central offshore treatment structure (108, 208), comprising at least one water treatment plant (110, 210) designed to treat water for hydrogen production, and at least one interconnected medium network (118, 218) arranged between the plurality of offshore hydrogen production wind turbines (102, 202, 240) and the first central offshore treatment structure (108, 208). The interconnected medium network (118, 218) comprises at least one water supply network (120, 220) designed to supply the micro-electrolysis systems (104, 204) with the treated water.
Resumen de: EP4685272A2
L'invention se rapporte à une Cellule électrochimique (CEC) comprenant une première électrode (A0) de forme cylindrique et une deuxième électrode (C1) de forme cylindrique, la première électrode (A0) et la deuxième électrode (C1) partageant un même axe de révolution, le diamètre de la première électrode étant supérieur au diamètre de la deuxième électrode, de sorte que le volume (V) défini entre la face interne de la première électrode et la face externe de la deuxième électrode puisse recevoir un électrolyte, la cellule (CEC) comprenant des moyens d'obturation (D2, D3, CFo) de la base supérieure et de la base inférieure de la cellule assurant l'étanchéité de l'électrolyte, la cellule (CEC) comprenant de plus des moyens de production d'un champ magnétique (B), ledit champ magnétique étant perpendiculaire au champ électrique produit entre la première électrode (A0) et la deuxième électrode (C1).
Resumen de: EP4684865A2
A system includes a first chamber, a second chamber, an ultraviolet light source and a microwave source. The first chamber includes an inlet. The second chamber is adjacent the first chamber and includes an outlet and a waveguide. The ultraviolet light source resides within the waveguide of the second chamber. Related apparatus, systems, techniques and articles are also described.
Resumen de: JP2025004799A
To provide a configuration capable of grasping the recovery amount by a recovery container 14 for recovering a composition containing a by-product generated during hydrogen generation.SOLUTION: A hydrogen generation part 12 generates hydrogen by reacting a hydrogen carrier with a liquid containing water. A body part 10 has a hydrogen generation part 12. The recovery container 14 is attachable to and detachable from the body part 10 and recovers a composition containing a by-product generated together with hydrogen in the hydrogen generation part 12. A detection part 13 detects the recovery amount of the composition recovered from the hydrogen generation part 12 by the recovery container 14. A memory 17 is provided in the recovery container 14 and stores information related to the recovery amount.SELECTED DRAWING: Figure 1
Resumen de: WO2025008146A1
The present invention relates to a method for producing hydrogen and magnetite from water and iron in the presence of an iron(II) salt catalyst. The invention also relates to the use of the iron obtained as an indirect hydrogen store.
Resumen de: JP2025039684A
To provide means for solving the problem on radioactive contamination by applying hydrogen water to applications that are different from an application of removing a radioactive substance from soil and that appropriately exhibit functions of hydrogen water with unique properties.SOLUTION: In a method for reducing an amount of radioactivity in liquid containing a radioactive substance by dissolving hydrogen in the liquid, hydrogen may be dissolved in the liquid by mixing a substance containing a radioactive substance with hydrogen water containing hydrogen of 1.0 ppm or more.SELECTED DRAWING: None
Resumen de: JP2022191624A
To provide a silver ion water formation kit which makes it easy to know a replacement timing of a silver ion water generator.SOLUTION: A silver ion water generating kit 100 has a silver ion water generator 20 which generates silver ion water and a housing case 10 which houses the silver ion water generator 20. The housing case 10 has an opening (open hole) 15 through which fluid (water 200) enters and exits. In the housing case 10, solubility particles (e.g., vitamin agent) 25 that dissolve in the fluid (water 200) are arranged together with the silver ion water generator 20.SELECTED DRAWING: Figure 1
Resumen de: WO2024262442A1
A water electrolysis electrode 1 comprises a conductive substrate 10 and a layered double hydroxide layer 20. The conductive substrate 10 contains Ni. The layered double hydroxide layer 20 is provided on a surface of the conductive substrate 10. The layered double hydroxide layer 20 contains Ni. In an XRD pattern of the grazing incidence X-ray diffraction of the water electrolysis electrode 1, the ratio P003/P111 of the intensity P003 of the diffraction peak of the (003) plane of the layered double hydroxide to the intensity P111 of the diffraction peak of the (111) plane of Ni is 0.025 or less.
Resumen de: US20260024783A1
This disclosure relates to electrolyzer composite membranes, and in particular, to a composite membrane having at least two reinforcing layers comprising a microporous polymer structure and a surprisingly high resistance to piercing. The electrolyzer composite membranes have as recombination catalyst configured to be disposed closer to an anode than to a cathode in a membrane-electrode assembly (MEA). The disclosure also relates to membrane-electrode assemblies and electrolyzers comprising the membranes, and to method of manufacture of the membranes.
Resumen de: US20260022476A1
A vanadium oxide-based electrode for electrochemical water splitting that includes metallic substrate and a layer of particles of a vanadium oxide composite at least partially covering a surface of the metallic substrate. The particles of the vanadium oxide composite are in the form of nanobeads having an average particle size of 50 to 400 nm. A method of making the electrode.
Resumen de: US20260022470A1
A method for producing hydrogen by means of water electrolysis, in which a direct electrolysis current is fed to one or more electrolysis units at least in a first operating mode, wherein the direct electrolysis current is supplied from a mains current using a current conversion arrangement, wherein the mains current is an alternating current, wherein the current conversion arrangement, comprises one or more first synchronous electric machines which are operable as motors and one or more second synchronous electric machines which are operable as generators, wherein the one or more first synchronous electric machines is/are operated using the mains current, wherein the one or more second synchronous electric machines is/are driven using the one or more first synchronous electric machines, and wherein the direct electrolysis current is supplied using the one or more second synchronous electric machines. The present invention also relates to a corresponding plant.
Resumen de: US20260022482A1
An estimation system for estimating current efficiency of an electrolyser comprises a data processing system (105) for computing heat loss of the electrolyser based on specific heat capacity of electrolyte, a flow rate of the electrolyte in a cathode side of the electrolyser, a flow rate of the electrolyte in an anode side, a temperature difference (T1c-T0c) between electrolyte circulation outlet and inlet of the cathode side, and a temperature difference (T1a-T0a) between electrolyte circulation outlet and inlet of the anode side. The current efficiency is estimated based on a difference between electric power supplied to the electrolyser and the computed estimate of the heat loss, and on a product of thermoneutral voltage of electrolysis cells of the electrolyser and electric current supplied to the electrolyser.
Resumen de: US20260022477A1
A vanadium oxide-based electrode for electrochemical water splitting that includes metallic substrate and a layer of particles of a vanadium oxide composite at least partially covering a surface of the metallic substrate. The particles of the vanadium oxide composite are in the form of nanobeads having an average particle size of 50 to 400 nm. A method of making the electrode.
Resumen de: US20260022475A1
An ammonia electrolysis cell according to one embodiment of the present invention includes an end plate, a collector plate, a separator plate, a porous transport layer support gasket, a porous transport layer electrode, and a membrane, wherein the collector plate is connected to a power source, the power source may be characterized in that it cross-applies a working voltage and a rest voltage of 0.2 V or less. Thus, the present invention can effectively remove* NHx and OH− that poison the oxidation electrode, thereby significantly increasing the efficiency of hydrogen production, and can provide a bulk storage and transportation device for utilizing hydrogen as an energy medium.
Resumen de: US20260022471A1
A water electrolysis system including a container; a plurality of microcells located inside the container; the microcells are centered around a central axis of the container; a first bracket located on a first side of the microcells; a second bracket located on a second side of the microcells; a plurality of magnets mounted on the first and the second brackets, the magnets are placed in parallel to the microcells; a liquid inside the container. The first and the second brackets are adapted to be connected to a motor. The first and the second brackets rotate during the electrolysis process. The magnets on the first bracket produce a first magnetic field and the magnets on the second bracket produce a second magnetic field; and the first and the second magnetic fields have opposite polarity.
Resumen de: WO2026017234A1
A system for producing hydrogen gas by reacting a metal selected from a group consisting of silicon, aluminum, magnesium, calcium, lithium, potassium and sodium and water, comprises a reaction chamber, a water supply device, configured for supplying water to the reaction chamber, a metal supply device, configured for supplying metal to the reaction chamber, a hydrogen collection arrangement, configured for collecting hydrogen gas from the reaction chamber and supplying said hydrogen gas via a main output channel to an application hydrogen consumer, and a controller, configured to control at least one of the water supply device, the metal supply device and the hydrogen collection arrangement. A water harvesting device is configured for harvesting water from air, and comprises an adsorbent, a water release device, configured to causing water to be released from the adsorbent, and a water collection device, configured to collect water released from the adsorbent, wherein the water collection device is connected to supply water to the reaction chamber. The disclosure provides a system and methods for producing hydrogen gas by reacting metal and water. The disclosure further provides a vehicle comprising said system and a portable device comprising said system.
Resumen de: WO2026017387A1
The invention relates to an electrolysis system for hydrogen production, comprising: A DC Power source, in particular with a fluctuating power revenue, comprising: a positive power bar; and a negative power bar; A plurality of electrolyser modules, each electrolyser module comprising: A plurality of electrolyser cells; At least a first common liquid input connection; At least one common positive electric pole; At least one common negative electric pole; A liquid circuit for supplying an electrolyte to the liquid input connection of each of said electrolyser modules, connecting the electrolyser modules hydraulically; A controllable electric circuit, configured for selectively connecting and disconnecting one of: the positive electric pole of at least one of the electrolyser modules; or the negative electric pole of said at least of the electrolyser modules; to or from the respective positive or negative power bar; characterised in that the controllable electric circuit is further configured for selectively connecting and disconnecting the other of: the positive electric pole of said at least one of the electrolyser modules; and the negative electric pole of said at least one of the electrolyser modules; to or from the respective positive power bar or the respective negative power bar.
Resumen de: US20260022704A1
A hydrogen production plant, to produce hydrogen having a compressing assembly, for increasing the pressure of the hydrogen. The compressing assembly has at least one barrel compressor and at least one integrally geared centrifugal compressor. Also disclosed are methods of compressing hydrogen.
Resumen de: AU2023449815A1
A system and method of making hydrogen from water. A cylindrical reaction vessel is provided with an outer shell, a central shaft, and one or more concentric inner tubes separated by annular spaces. Water is delivered to the annular spaces by a water pump through an inlet defined in the reaction vessel. The water courses along a tortuous flow path. That path begins at an inner annular space around a central shaft. It ends at an outer annular space. The water emerges from the reaction vessel through an outlet associated with a manifold. A high-frequency vibratory stimulus is applied to the reaction vessel and water. Water molecules are dissociated into hydrogen molecules and oxygen atoms. These reaction products are delivered through the manifold along an effluent flow path to a receiving pressure vessel before deployment to a sub-assembly for harnessing clean energy.
Resumen de: 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.
Resumen de: AU2026200050A1
21680504_1 (GHMatters) P123644.AU 6/01/26 The invention relates to a method for configuring a plant for the production of green ammonia using renewable energies for the production of hydrogen. an a n
Resumen de: WO2026016601A1
A hydrogen generation device, comprising a water tank, two electrolysis modules, a condenser, and a first humidifier, wherein the water tank has an accommodating space to accommodate electrolyzed water; the two electrolysis modules are located outside the water tank and are connected in series to each other, and each electrolysis module is configured to receive and electrolyze the electrolyzed water from the water tank to generate and output a hydrogen-containing gas to the water tank; the condenser is arranged above the water tank, and the condenser is configured to receive and condense the hydrogen-containing gas from the water tank and output the condensed hydrogen-containing gas; and the first humidifier is coupled to the condenser and has a first humidification chamber to accommodate makeup water, and the first humidifier is configured to receive the condensed hydrogen-containing gas from the condenser into the makeup water to filter and humidify the condensed hydrogen-containing gas.
Nº publicación: WO2026018535A1 22/01/2026
Solicitante:
HITACHI LTD [JP]
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Resumen de: WO2026018535A1
This water electrolysis system comprises: one or more water electrolysis stacks; a water line for supplying water to each water electrolysis stack; an oxygen line for discharging an oxygen gas that is generated in each water electrolysis stack and surplus water; a hydrogen line for discharging a hydrogen gas that is generated in each water electrolysis stack and surplus water; an insulation pipe for electrically insulating the water electrolysis stacks from the pipes of the water line, the oxygen line, and the hydrogen line; and a DC power supply for supplying DC power so as to drive the water electrolysis stacks. During the operation of this water electrolysis system, water is supplied to a part in which the hydrogen gas and surplus water are mixed in the water electrolysis stacks or the hydrogen line on the upstream side of the insulation pipe of the hydrogen line.
BOPI
Sede Electrónica
