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Production of hydrogen and solid lithium hydroxide

Resumen de: 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.

インサートを備えた電気化学セル組立体

Resumen de: CN119183617A

The present invention relates to an electrochemical cell assembly (10) comprising a first end plate assembly (12), a stack (14) of battery repeating units (18), and a second end plate assembly (16). The stack is held in a compressed state between the first end plate assembly and the second end plate assembly. The first end plate assembly and/or the second end plate assembly each comprises an end plate (32) and an insulating plate (34) located between the end plate and the stack, in which at least one through-hole (36) is provided in the insulating plate, and in which a sealing insert (40) is provided in the at least one through-hole of the insulating plate, which sealing insert defines a fluid channel (42) in the direction of the stack. The invention also relates to an end plate assembly and a method of manufacturing an electrochemical cell assembly.

電極構造体、ガス拡散層、および水電解装置

Resumen de: US2025129491A1

To provide a technique allowing reduction in the amount of usage of a catalyst material while alleviating performance degradation of a gas diffusion layer. A cell as an electrode structure comprises an electrolyte membrane, a gas diffusion layer, and a catalyst layer. The gas diffusion layer is positioned on one side with respect to the electrolyte membrane. The gas diffusion layer is a porous layer. The catalyst layer is positioned between the electrolyte membrane and the gas diffusion layer. The catalyst layer is made of a catalyst material. A penetration part formed in the gas diffusion layer by the penetration of the catalyst material having a thickness of 1 μm or less.

電気化学セル、セルスタック、ホットモジュール及び水素製造装置

Resumen de: JP2025069496A

【課題】反りを簡易に低減できる電気化学セル、セルスタック、ホットモジュール及び水素製造装置を提供する。【解決手段】電気化学セルは、順に燃料極、固体電解質、空気極を含み、燃料極は、順に基板層および機能層を含む固体酸化物形であって、基板層の内部に配置された拘束層を備え、拘束層は、空気極が重なる部分に位置する線状部を複数含む第１部と、空気極が重ならない部分に位置する枠状の第２部と、を含み、線状部の両端は第２部につながり、第１部および第２部の気孔率は、基板層の気孔率よりも小さい。【選択図】図２

HYBRID HYDROGEN CELL COMBINING A DRY HYDROGEN CELL AND A FLOODED (WET) HYDROGEN CELL

Resumen de: WO2025087496A1

The invention relates to the combination of a dry cell and a flooded (wet) cell in a single cell, wherein stainless steel or metal strips (10) used in electrochemical analysis are arranged horizontally and circular openings are made in a geometrically balanced manner such that electricity is evenly distributed within the cell, allowing hydroxy gas to escape from the openings instead of getting caught between the stainless steel or metal strips (10). The stainless steel or metal strips (10) are connected directly to a thermal acrylic cylinder (3) without connectors or tubes, preventing the hydroxy gas, and even the electrolyte solution, from being carried to the stainless steel strips, as the thermal acrylic cylinder (3) is positioned on top of the stainless steel or metal strips (10). An effective result of this distinctive new design is that the device is smaller, enabling installation in small vehicles. In addition, the distinctive design makes the device easy to install and maintain, since the base of the device is only 7 x 7 cm, which facilitates installation in motors, vehicles and generators that use petroleum hydrocarbons as fuel, in addition to significantly reducing the production cost of this type of device.

SYSTEMS AND METHODS FOR TANDEM HYDROGEN PRODUCTION AND CARBON DIOXIDE CAPTURE

Resumen de: WO2025090834A1

Disclosed herein are systems and methods for tandem hydrogen (H2) production and carbon dioxide (CO2) capture. For example, described herein are methods comprising tandem H2 production and CO2 capture and conversion to a carbonate mineral. In some examples, the method is an electrochemical method. In some examples, the method comprises dissolving CO2 in water and applying an electrochemical potential sufficient to drive the H2 evolution reaction, thereby producing H2 and CO3 2-. In some examples, the methods further comprise contacting the CO3 2- with a cation to thereby form an insoluble carbonate compound.

METHOD AND STRUCTURE FOR EXTREME WEATHER HYDROGEN GENERATION FACILITY

Resumen de: WO2025091024A1

A hydrogen generation system suitable for outdoor use is described. The system vents to the atmosphere to help to prevent accumulation of hazardous gas buildup within the system while also protecting hydrogen generation components from extreme weather conditions. The system includes walls that the allow ventilation while inhibiting moisture and wind from entering an interior of the system.

IMPROVED ELECTROCHEMICAL DEVICE

Resumen de: WO2025088418A1

Electrochemical device (1), preferably of the electrolyser type for hydrogen production, characterised by comprising: - at least one support frame (2), with a substantially laminar development, which is provided with at least one seat (3) for an electrochemical module (10), said support frame (2) comprising a first face (12') and a second face (12") which are opposite to each other, at least one electrochemical module (10) which is mounted in said at least one seat (3) and which comprises a separation membrane interposed between two electrodes, respectively between an anode and a cathode, at least one bipolar plate (20) for applying/transferring electrical energy to the electrodes of said at least one electrochemical module (10), said bipolar plate (20) comprising a first surface (21') and a second surface (21") which are opposite to each other, said bipolar plate (20) being superimposed on said support frame (2) and being configured so that the first surface (21') of said bipolar plate (20) rests, at least in part, on a first face (12') of said support frame (2).

METHOD OF OPERATING A SOLID OXIDE ELECTROLYSIS CELL STACK AND SYSTEM FOR CARRYING OUT THE METHOD

Resumen de: WO2025088185A1

The invention relates to a method of operating a solid oxide electrolysis cell (SOEC) stack for producing hydrogen, and a system for carrying out the method, said SOEC stack comprising at least one solid oxide electrolysis cell (SOEC), said at least one SOEC comprising an electrolyte layer interposed between a fuel-side and an oxy-side, the method comprising transient operation, in which the transient operation comprises: - providing a feed gas comprising ammonia; - supplying at least a portion of said feed gas comprising ammonia to a guard bed reactor, said guard bed reactor comprising a catalyst active in the cracking of ammonia to nitrogen and hydrogen; and withdrawing from said guard bed reactor a forming gas comprising nitrogen and hydrogen; - supplying at least a portion of the intermediate gas comprising nitrogen and hydrogen to the fuel-side of the at least one of the solid oxide electrolysis cells (SOECs) of the SOEC stack; and withdrawing from said at least one of the SOECs of the SOEC stack, a first fuel-side exit gas.

METHOD OF OPERATING A SOLID OXIDE ELECTROLYSIS CELL STACK AND SYSTEM FOR CARRYING OUT THE METHOD

Resumen de: WO2025087866A1

The invention relates to a method of operating a solid oxide electrolysis cell (SOEC) stack for producing hydrogen, and a system for carrying out the method, said SOEC stack comprising at least one solid oxide electrolysis cell (SOEC), said at least one SOEC comprising an electrolyte layer interposed between a fuel-side and an oxy-side, the method comprising transient operation, in which the transient operation comprises: - operating the SOEC stack under open-circuit voltage (OCV); - providing a feed gas comprising ammonia; - supplying at least a portion of said feed gas comprising ammonia to a guard bed reactor, said guard bed reactor comprising a catalyst active in the cracking of ammonia to nitrogen and hydrogen; and withdrawing from said guard bed reactor a forming gas comprising nitrogen and hydrogen; - supplying at least a portion of the forming gas comprising nitrogen and hydrogen to the fuel-side of the at least one of the solid oxide electrolysis cells (SOECs) of the SOEC stack; and withdrawing from said at least one of the SOECs of the SOEC stack, a first fuel-side exit gas.

SOLID OXIDE CELL SYSTEM AND GUARD BED REACTOR FOR SILICON REMOVAL THEREFORE

Resumen de: WO2025087865A1

The present invention relates to a guard bed reactor for silicon removal, a solid oxide electrode system for producing hydrogen comprising a guard bed reactor for silicon removal, a method of operating the system to produce hydrogen and a use of the guard bed reactor for silicon removal for depleting a stream of steam from volatile silica species.

CATALYST AND METHOD FOR PRODUCING HYDROGEN BY PROTON REDUCTION

Resumen de: WO2025087819A1

The invention relates to a catalyst comprising a nickel(II) complex comprising a bis(thiosemicarbazone) ligand derived from 2,2'-thenil, the nickel(II) complex having the general formula Chem 6 wherein R1 and R2 each independently represent a phenyl group optionally having one or more identical or different substituents R3, R3 is selected from a halogen, a hydroxy group, a C1-C4 alkyl group, a C1-C4 alkoxy group, a C1-C4 thioalkyl group, a C1-C4 dialkylamino group, a cyano group, a CF3 group and an O-CF3 group.

MARINE PLATFORM FOR PRODUCING, STORING, AND TRANSFERRING MARINE GREEN HYDROGEN

Resumen de: WO2025089434A2

The present invention relates to an apparatus and method for producing, storing, and transferring hydrogen. According to the present invention, in order to address the problems of conventional systems and methods for producing, storing, and transferring marine green hydrogen, which are configured with a fixed structure in a small-scale offshore wind power generator on a coast or in a shallow sea area with a shallow depth of water, and thus, have low efficiency due to the difficulty in mass production of hydrogen, and a large storage space is occupied when the produced hydrogen is converted into a compressed gas form, and when the produced hydrogen is converted into ammonia, additional energy is required to extract the hydrogen again and there is a risk of environmental pollution and casualty in the event of an outflow accident, provided is a marine platform for producing, storing, and transferring marine green hydrogen, which is configured such that marine green hydrogen is produced through a floating marine structure configured to produce marine green hydrogen using electricity produced using renewable energy from the ocean, and simultaneously, the produced marine green hydrogen is stored, transferred, and offloaded through a single offshore platform (FPSO), thereby being possible to easily construct a large-scale production facility capable of producing, storing, and transferring marine green hydrogen without greenhouse gas emission on the basis of eco-friendly energy.

ELECTROLYTE MEMBRANE, ELECTROLYTE MEMBRANE WITH CATALYST LAYER, TRANSFER SHEET USED FOR PRODUCING SAME, MEMBRANE-ELECTRODE ASSEMBLY, WATER ELECTROLYSIS DEVICE, AND METHOD FOR MANUFACTURING ELECTROLYTE MEMBRANE WITH CATALYST LAYER

Resumen de: 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).

CATALYST ELECTRODE, METHOD FOR MANUFACTURING CATALYST ELECTRODE, AND MEMBRANE ELECTRODE ASSEMBLY

Resumen de: EP4546471A1

A catalyst electrode according to an embodiment of the present disclosure includes a metal layer; and a catalyst layer formed on the metal layer, wherein the catalyst layer includes iridium and palladium.

METHOD FOR OPERATING A POWER-TO-HYDROGEN SYSTEM AND POWER-TO-HYDROGEN SYSTEM

Resumen de: 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.

FUEL CRACKER FOR PRODUCING A FUEL WITH STABLE COMBUSTION PROPERTIES FROM AMMONIA

Resumen de: 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).

LOW VOLTAGE ELECTROLYZER AND METHODS OF USING THEREOF

Resumen de: 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.

METHANOL PRODUCTION FROM BIOMASS AND GREEN HYDROGEN

Resumen de: 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.

APPAREIL D'ÉNERGIE

Resumen de: US2024106008A1

An energy apparatus comprising at least one functional unit including a first cell comprising a first cell electrode and at least one first cell opening for a first cell aqueous liquid and for a first cell gas. The first cell electrode comprises an iron-based electrode; a second cell comprising a second cell electrode and at least one second cell opening for a second cell aqueous liquid and for a second cell gas. The second cell electrode comprises at least one metal comprising 60-99.9 at. % nickel, and 0.1-35 at. % iron and a separator. The first cell and the second cell share the separator which is configured to block transport of at least one of O2 and H2 from one cell to another while having permeability for at least one of hydroxide ions (OH−) monovalent sodium (Na+), monovalent lithium (Li+) and monovalent potassium (K+).

生物起源の活性炭ならびにそれを作製および使用する方法

Resumen de: 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.

SYSTEMS FOR GENERATING HYDROGEN

Resumen de: 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.

CARBON NANOTUBE MOLDED BODY, ELECTRODE FOR ELECTROCHEMICAL WATER SPLITTING AND METHOD FOR PRODUCING SAME, AND ELECTROCHEMICAL WATER SPLITTING DEVICE

Resumen de: 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 m²/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.

SYSTEM FOR MANUFACTURING SODIUM HYPOCHLORITE AND HYDROGEN GAS HAVING HIGH PURITY

Resumen de: WO2025089546A1

An aspect of the present invention provides a system for producing sodium hypochlorite and hydrogen gas, comprising: a desalination unit for desalinating seawater to generate a fresh water stream and a concentrated water stream; a crystallization unit for crystallizing the concentrated water stream to generate a solid raw material containing sodium chloride; an electrolysis unit for electrolyzing reactants, derived from the solid raw material and water, to generate sodium hypochlorite and by-product gas; and a gas purification unit for purifying the by-product gas to generate hydrogen gas.

DOUBLE HEATING AMMONIA DECOMPOSITION APPARATUS

Nº publicación: KR20250058602A 30/04/2025

Solicitante:

KOREA INSTITUTE OF MACHINERY & MAT [KR]
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Resumen de: KR20250058602A

본 발명의 일 실시예에 따른 암모니아 분해 장치는, 암모니아가 공급되는 암모니아 공급부, 암모니아가 이동하면서 분해되는 분해 공간, 분해된 암모니아 분해가스가 배출되는 분해가스 배출부, 연료전지의 애노드 배가스가 공급되는 제1 배가스 공급부, 연료전지의 캐소드 배가스가 공급되는 제2 배가스 공급부, 상기 애노드 배가스와 상기 캐소드 배가스가 연소되는 연소 공간, 및 상기 연소 공간에서 연소된 배가스를 이동시키는 배가스 유로를 포함하고, 상기 분해 공간은 상기 연소 공간과 상기 배가스 유로 사이에 위치할 수 있다.