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978
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Updated on
09/05/2025 [07:00:00]
Results 50 to 75 of 978
Absstract of: AU2023343511A1
The problem addressed by the present invention is that of specifying a process for producing lithium hydroxide which is very energy efficient. The process shall especially operate without consumption of thermal energy. The process shall be able to handle, as raw material, Li-containing waters generated during digestion of spent lithium-ion batteries. The LiOH produced by the process shall have a high purity sufficient for direct manufacture of new LIB. The process shall achieve a high throughput and have small footprint in order that it can be combined with existing processes for workup of used LIB/for production of new LIB to form a closed, continuous production loop. The process according to the invention is an electrolytic membrane process operating with a LiSICon membrane. It is a special aspect of the process that the electrolysis is operated up to the precipitation limit of the lithium hydroxide.
Absstract of: AU2023343512A1
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: US2025135397A1
Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.
Absstract of: EP4545687A1
An object of the present invention is to provide an electrolyte membrane having an excellent joining property between an electrolyte membrane and a catalyst layer. The present invention mainly relates to an electrolyte membrane including a layer (A) containing a polymer electrolyte, and a layer (B) on at least one of the faces of the layer (A), wherein porosity (X1) in an interface region of the layer (B), on the layer (A) side, is higher than porosity (X2) in another interface region of the layer (B), on the opposite side to the layer (A).
Absstract of: EP4545689A1
The present invention relates to a method for operating a Power-To-Hydrogen system (10) comprising at least one electricity source (1), at least one electrolyzer (2), a first hydrogen storage device (3) with permanent availability and a hydrogen transfer station (4). The hydrogen transfer station (4) is adapted and configured to be coupled temporarily to one or multiple second hydrogen storage devices (5,51,52) with time-dependent availability for a transfer of hydrogen to the one or multiple second hydrogen storage devices (5,51,52). A hydrogen production rate (P(t)) of the electrolyzer (2) is controlled based on a forecasted total available hydrogen storage capacity, wherein the forecasted total available hydrogen storage capacity comprises a storage capacity (X) of the first hydrogen storage device (3) and a time-dependent storage capacity of the second hydrogen storage device (5,51,52) provided by a hydrogen storage capacity model (C(t)).The method according to invention allows for an optimized hydrogen production planning and thus improves both profitability and sustainability of the Power-To-Hydrogen system.
Absstract of: EP4545476A1
Process (2) for the production of an enhanced fuel gas (4) containing at least hydrogen gas from a fuel stream, in particular from an ammonia fuel stream (6). Said process comprises the following steps:- providing the fuel stream (6) (S100);- providing a condensable medium (8), preferably water steam (8), to a cracker unit (10);- at least one step of performing an endothermic cracking reaction of the fuel stream (6) in the cracker unit comprising at least one catalyst suitable for cracking said fuelstream (6), so as to produce an at least partially cracked fuel stream as said enhanced fuel gas (4) (S300); and- condensing at least partially said condensable medium (8) to provide said heat for the endothermic cracking reaction of the fuel stream (6).
Absstract of: EP4545192A2
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Absstract of: US2024139707A1
Biogenic activated carbon compositions disclosed herein comprise at least 55 wt % carbon, some of which may be present as graphene, and have high surface areas, such as Iodine Numbers of greater than 2000. Some embodiments provide biogenic activated carbon that is responsive to a magnetic field. A continuous process for producing biogenic activated carbon comprises countercurrently contacting, by mechanical means, a feedstock with a vapor stream comprising an activation agent including water and/or carbon dioxide; removing vapor from the reaction zone; recycling at least some of the separated vapor stream, or a thermally treated form thereof, to an inlet of the reaction zone(s) and/or to the feedstock; and recovering solids from the reaction zone(s) as biogenic activated carbon. Methods of using the biogenic activated carbon are disclosed.
Absstract of: AU2023288544A1
Disclosed herein are low voltage electrolyzers and methods and systems of using those low voltage electrolyzers. Specifically, the electrolyzers can include a pH buffer in the catholyte and/or anolyte of the electrolyzer and generating a gas at the cathode or anode that is consumed at the other of the cathode or anode to reduce the open-circuit potential.
Absstract of: EP4545479A1
Provided are a carbon nanotube molded body including carbon nanotubes, and a method of producing the same, wherein the carbon nanotube molded body has a specific surface area of 700 m<sup>2</sup>/g or more, the carbon nanotube molded body has a pore distribution from 3 to 15 nm, the carbon nanotube molded body has a tensile strength of 45 MPa or more, and the carbon nanotube molded body has a Young's modulus of 1600 MPa or more. Also provided are an electrochemical water-splitting electrode comprising the carbon nanotube molded body and platinum supported on the carbon nanotube molded body, a method of producing the same, and an electrochemical water-splitting apparatus comprising the electrochemical water-splitting electrode.
Absstract of: EP4545690A1
An electrolysis device of the present disclosure includes an electrolytic cell, an electrolyte supply unit, and an ion concentration adjustment unit. The electrolytic cell includes an anode chamber, a cathode chamber, and an ion exchange membrane disposed between the anode chamber and the cathode chamber. The electrolyte supply unit includes at least one tank accommodating an electrolyte, circulates a portion of the electrolyte as a first electrolyte between the at least one tank and the anode chamber, and circulates another portion of the electrolyte as a second electrolyte between the at least one tank and the cathode chamber. The ion concentration adjustment unit supplies an adjustment solution for adjusting a hydrogen ion concentration to the electrolyte supply unit.
Absstract of: US2025129001A1
In a process for producing methanol, a synthesis gas that has been recovered from biomass is fed to a methanol synthesis apparatus. In a main operating mode in which sufficient electrical power is available for electrolytic hydrogen recovery, correspondingly electrolytically recovered hydrogen is fed to the methanol synthesis apparatus. In a secondary operating mode in which insufficient electrical power is available for electrolytic production of hydrogen, a tail gas that arises from a biogas recovered from a biomass on removal of the synthesis gas is fed to a generator in order to provide electrical power for apparatuses involved in the process.
Absstract of: AU2023359368A1
Electrolyser (1) for production of hydrogen gas and comprising a stack of bipolar electrodes (9) sandwiching ion-transporting membranes (2) between each two of the bipolar electrodes (9). Each bipolar electrode comprises two metal plates (9A, 9B) welded together back-to-back forming a coolant compartment in between and having a respective anode surface and an opposite cathode surface, each of which is abutting one of the membranes. The plates (9A, 9B) are embossed with a major vertical channel (10A, 10B) and minor channels (11A, 11B) in a herringbone pattern for transport of oxygen and hydrogen gases. The embossed herringbone pattern is provided on both sides of the metal plates (9A, 9B) so as to also provide coolant channels (11B) in a herringbone pattern inside the coolant compartment.
Absstract of: FR3154331A1
L’invention concerne un catalyseur comprenant un complexe de nickel(II) comprenant un ligand bis(thiosemicabazone) dérivé du 2,2’-thénil, ledit complexe de nickel(II) répondant à la formule générale Chem 6 suivante : Chem 6dans laquelle,R1 et R2 représentent chacun indépendamment un groupe phényle ayant optionnellement un ou plusieurs substituants R3 identiques ou différents, R3 est sélectionné parmi un halogène, un groupe hydroxy, groupe alkyle en C1-C4, un groupe alkoxy en C1-C4, un groupe thioalkyl en C1-C4, un groupe dialkylamino en C1-C4, un groupe cyano, un groupe CF3 et un groupe O-CF3.
Absstract of: CN119265595A
The invention belongs to the technical field of hydrogen production electrolytic cells, and particularly discloses an electrode catalyst for a hydrogen production electrolytic cell and a preparation method thereof, an electrode and an electrolytic cell, the electrode catalyst comprises first metal nanoparticles, the size of the first metal nanoparticles is smaller than or equal to 10 nm, the first metal nanoparticles form a first metal nanoparticle aggregation structure, and the first metal nanoparticles form a second metal nanoparticle aggregation structure; the size of the first nano-particle agglomerated structure is less than or equal to 65 nm; the second metal nanoparticles are distributed among the first metal nanoparticles and at least partially cover at least one part of the first metal nanoparticles, and the size of the second metal nanoparticles is smaller than or equal to 10 nm. The size of the electrode catalyst nano-particles can be controlled, agglomeration is limited, the crystallinity is reduced, and defect active sites are enriched.
Absstract of: CN116043250A
The invention provides an electrolytic bath which comprises a cathode end plate, a cathode insulating layer, an electrolytic unit, an anode insulating layer and an anode end plate which are sequentially arranged, the electrolytic bath is provided with a first ventilation channel, a second ventilation channel, a first liquid passing channel and a second liquid passing channel, and the cross section of each channel is triangular; in the direction from the cathode end plate to the anode end plate, each small electrolysis chamber comprises a cathode plate, a cathode sealing ring, a cathode gas diffusion layer, a diaphragm, an anode gas diffusion layer and an anode plate which are sequentially arranged, each cathode plate comprises a cathode surface, each anode plate comprises an anode surface, and the cathode plates and the anode plates at the series connection parts between the small electrolysis chambers form a bipolar plate; a cathode reaction cavity is formed between the cathode surface and the cathode gas diffusion layer, an anode reaction cavity is formed between the anode surface and the anode gas diffusion layer, the first ventilation channel and the first liquid channel are communicated with the cathode reaction cavity, and the second ventilation channel and the second liquid channel are communicated with the anode reaction cavity; and flow guide channels are arranged in the cathode reaction cavity and the anode reaction cavity.
Absstract of: US2025129492A1
A spring plate assembly. The assembly includes spring plates with each of the spring plates having a perimeter section extending in a first plane, at least one bridge section extending from a first portion of the perimeter section to a second portion of the perimeter section, and spring elements that extend from the at least one bridge section. A first pair of adjacent spring plates are configured to engage a corresponding one of the perimeter sections when stacked in a first configuration and the first pair of adjacent spring plates are configured to engage a corresponding one of the plurality of spring elements when stacked in a second configuration.
Absstract of: AU2023343511A1
The problem addressed by the present invention is that of specifying a process for producing lithium hydroxide which is very energy efficient. The process shall especially operate without consumption of thermal energy. The process shall be able to handle, as raw material, Li-containing waters generated during digestion of spent lithium-ion batteries. The LiOH produced by the process shall have a high purity sufficient for direct manufacture of new LIB. The process shall achieve a high throughput and have small footprint in order that it can be combined with existing processes for workup of used LIB/for production of new LIB to form a closed, continuous production loop. The process according to the invention is an electrolytic membrane process operating with a LiSICon membrane. It is a special aspect of the process that the electrolysis is operated up to the precipitation limit of the lithium hydroxide.
Absstract of: WO2025082675A1
The invention relates to a hydrogen-production plant comprising at least a first production line, comprising at least a first electrolysis device with a plurality of first electrolysis modules and comprising a first compressor device with a plurality of first compressor modules, and comprising a controller, comprising at least a schedule-creating module and a control module, wherein the schedule-creating module is designed for creating an activation schedule at least for the first electrolysis modules and for the first compressor modules on the basis of respective performance characteristics of the respective first electrolysis modules, respective performance characteristics of the respective first compressor modules and at least one predetermined optimization criterion, and wherein the control module is designed for activating the first compressor modules and the first electrolysis modules on the basis of the activation schedule created.
Absstract of: WO2025081215A1
A sustainable water fuelled process and apparatus where a Unipolar electrolysis of water is described and the hydrogen and oxygen are stored before feeding a hydrogen fuel cell which is capable of providing sufficient electricity to provide power to a drive a vehicle, power a generator etc, after supplying electricity to the Unipolar electrolyser and the storage of the hydrogen and oxygen.
Absstract of: WO2025082916A1
The invention relates to a unit (200) for producing hydrogen that comprises: - a stack (102) of solid oxide cells, - an air circuit (110), and a fuel circuit (120) passing through the stack (102); characterised in that the unit (200) is equipped with a stopping system comprising: - an inlet (202) and an outlet (204) for neutral gas, for circulating a predetermined neutral gas in the stack; - an inlet (206) and an outlet (208) for safety gas, for circulating a safety gas in the stack (102); and - a control module (210) for switching the stack (102) from the production configuration to the stopped configuration. The invention also relates to a method for controlling such a unit.
Absstract of: DE102023128707A1
Elektrochemievorrichtung (10), insbesondere Elektrolysevorrichtung, mit einem Zellstapel (11) aus mehreren Zellstapelelementen (12), insbesondere aus mehreren Elektrolysezellen, mit einer Endplatten (14, 15) aufweisenden Kraftbeaufschlagungseinheit (13), wobei der Zellstapel (11) aus den Zellstapelelementen (12) zwischen den Endplatten (14, 15) angeordnet und verpresst ist, wobei ein Raum (21) zwischen den Endplatten (14, 15), in welchem der Zellstapel (11) aus mehreren Zellstapelelementen (12) angeordnet ist, nach außen gegenüber der Umgebung der Elektrochemievorrichtung (10) über ein Hüllelement (22) abgedichtet ist.
Absstract of: DE102023136033A1
Eine Federplattenbaugruppe ist vorgesehen. Die Baugruppe umfasst Federplatten, wobei jede der Federplatten einen Umfangsabschnitt aufweist, der sich in einer ersten Ebene erstreckt, mindestens einen Brückenabschnitt, der sich von einem ersten Teil des Umfangsabschnitts zu einem zweiten Teil des Umfangsabschnitts erstreckt, und Federelemente, die sich von dem mindestens einen Brückenabschnitt erstrecken. Ein erstes Paar benachbarter Federplatten ist so konfiguriert, dass es in einen entsprechenden der Umfangsabschnitte eingreift, wenn es in einer ersten Konfiguration gestapelt ist, und das erste Paar benachbarter Federplatten ist so konfiguriert, dass es in ein entsprechendes der Vielzahl von Federelementen eingreift, wenn es in einer zweiten Konfiguration gestapelt ist.
Absstract of: AU2023352489A1
A water electrolysis apparatus (100) includes: an electrolytic cell (20) for electrolyzing water; a circulation pump (27) that is installed in a water circulation line (23) for supplying water from an oxygen gas-liquid separator (22) to the electrolytic cell (20); an inverter (50) that supplies power to the circulation pump (27); and a control unit (60) that controls the inverter (50) to change the circulating water flow rate of the water circulation line (23).
Nº publicación: AU2025202458A1 24/04/2025
Applicant:
EPINOVATECH AB
EPINOVATECH AB
Absstract of: AU2025202458A1
A device (1) for performing electrolysis of water is disclosed. The device comprising: a semiconductor structure (10) comprising a surface (11) and an electron guiding layer (12) below said surface (11), the electron guiding layer (12) of the semiconductor structure (10) being configured to guide electron movement in a plane parallel to the surface (11), the electron guiding layer (12) of the semiconductor structure (10) comprising an InGaN quantum well (14) or a heterojunction (18), the heterojunction (18) being a junction between AIN material and GaN material or between AIGaN material and GaN material; at least one metal cathode (20) arranged on the surface (11) of the semiconductor structure (10); and at least one photoanode (30) arranged on the surface (11) of the semiconductor structure (10), wherein the at least one photoanode (30) comprises a plurality of quantum dots (32) of InxGa(1-x)N material, wherein 0.4 x 1. Also a system comprising such device is disclosed. Figure for publication: Fig. 1 30 20 30 20 40 )-12, 16 Fig.1 Fig.2
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