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772
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Última actualización
30/09/2025 [06:57:00]
Resultados 100 a 125 de 772
Resumen de: US2025283236A1
A method for sealing an electrolyzer cell may include applying a sealant between two layers of an electrolyzer cell and compressing the two layers towards each other. The method may further include flowing fluid through a flow field in the electrolyzer cell. The method may further include controlling a temperature of the fluid flowing through the flow field and controlling a pressure applied to the sealant by the compressing the two layers towards each other. The method may further include conforming the sealant to the two layers.
Resumen de: US2025283230A1
A method for producing an electrolysis cell includes a joining step of joining a frame portion of a protective sheet member provided between a membrane electrode assembly and a fluid-supply-side current collector to a portion of the membrane electrode assembly on the outer side of the covered portion where an electrolyte membrane is covered with an electrode catalyst layer to form a joint, and a joined body stacking step of stacking the membrane electrode assembly and the protective sheet member joined together on the fluid-supply-side current collector with the protective sheet member facing the fluid-supply-side current collector.
Resumen de: US2025283232A1
An electrolysis cell of an electrolysis device includes a membrane electrode assembly in which an electrolyte membrane is interposed between a first electrode and a second electrode. The membrane electrode assembly is positioned between a first separator and a second separator. The electrolysis device further includes a seal member and a protection member. The protection member surrounds the outer periphery of the second electrode. The protection member includes a first portion and a second portion. The first portion is interposed between the electrolyte membrane and the seal member. The second portion is interposed between the electrolyte membrane and the second separator.
Resumen de: MX2025002826A
The problem addressed by the present invention is that of specifying a process for electrochemical production of LiOH from Li<sup>+</sup>-containing water using an electrochemical cell having a LiSICon membrane which is operable economically even on an industrial scale. The process shall especially have a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities damaging to LiSICon materials. The problem is solved by adjusting the flow conditions in the anodic compartment of the electrochemical cell such that the anolyte flows along the membrane at a certain minimum flow rate.
Resumen de: MX2025002871A
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.
Resumen de: MX2025002822A
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.
Resumen de: US2025214034A1
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.
Resumen de: JP2025133294A
【課題】 光触媒を用いた水素ガス製造装置１に於いて、水槽２内の水素発生量をできるだけ精度良く推定できるようにする。【解決手段】 水素ガス製造装置に於いて、水素発生量推定手段は、予め調べられた、光源装置４から光触媒体へ光が種々の照射光強度にて照射されたときの水槽部内の水素発生量の値に基づいて決定される現在の照射光強度に於ける水槽部内にて発生している水素発生量の暫定推定値に、水素ガス量検出手段１２にて検出された水素発生量の検出値と、その検出値に対応する水素ガスが水槽部内にて発生した時点に於ける照射光強度に於ける水槽部内の水素発生量の暫定推定値とに基づいて算出された補正係数を乗じて得られた値を現在の水槽内の水素発生量の現在推定値として決定する。【選択図】 図１
Resumen de: US2025283231A1
Methods and apparatuses for converting carbon dioxide to useful compounds are disclosed. The method involves reducing bicarbonate solution in an electrolyzer. Bicarbonate solution is supplied to the cathode. The direct reduction of bicarbonate at the cathode may be coupled with an oxidation reaction at the anode. The oxidation reaction may provide a source of protons (H+) to cathode for the reduction of bicarbonate. The oxidation reaction may be a hydrogen oxidation reaction (HOR). Hydrogen gas (H2) may be supplied to the anode. In some embodiments, a source of gas may be supplied to the bicarbonate solution to form a pressurized solution before supplying the solution to the cathode.
Resumen de: US2025283226A1
An electrochemical reactor for capturing carbon dioxide and producing bicarbonate and hydrogen is described herein. The electrochemical reactor is useful for, among other things, converting biogas to a bicarbonate and hydrogen feedstock for biomethanation. The reactor comprises at least one reactor unit comprising an electrolyzer cell and at least one alkaline water electrolysis (AWE) cell adjacent to the electrolyzer cell. The electrolyzer cell comprises an anode spaced from a cathode by an ion exchange membrane between the anode and the cathode; and the electrolyzer cell is adapted and arranged to allow a flow of a neutral liquid electrolyte to contact the anode and the cathode. The ion exchange membrane can be a cation exchange membrane (CEM), or an anion exchange membrane (AEM). The AWE cell comprises a second anode spaced from a second cathode by a porous diaphragm.
Resumen de: US2025282614A1
A process for cracking ammonia to form hydrogen is described comprising the steps of (i) passing ammonia through one or more catalyst-containing tubes in a furnace to crack the ammonia and form hydrogen, wherein the one or more tubes are heated by combustion of a fuel gas mixture to form a flue gas containing nitrogen oxides capable of reacting with ammonia in the flue gas to form ammonium nitrate, and (ii) cooling the flue gas to below 170° C., characterised by maintaining an amount of steam in the flue gas according to the following equation to prevent solid ammonium nitrate formation: (I) where, yH2O is the mol % of steam in the flue gas, P*H2O is the equilibrium vapor pressure of water in an aqueous solution of ammonium nitrate, and p is the minimum operating pressure of the flue gas.
Resumen de: US2025286385A1
A sea-land collaboration-based multi-energy coupling low-carbon new energy system includes a low-carbon power generation unit, a green fuel synthesis unit and an energy storage device which are arranged on a sea and an island, a green fuel comprehensive utilization unit and a carbon capture device which are arranged on the island and/or on land, and a multi-energy flow coupling-based sea-land collaborative low-carbon intelligent control center. The system generates power using abundant and stable solar energy and wind energy on the sea and the island, prepares hydrogen and ammonia using seawater, and the green fuel synthesis unit prepares green fuels using the prepared hydrogen and carbon dioxide produced by the system, such that the use of coal and natural gas in the green fuel comprehensive utilization unit is reduced; meanwhile, produced carbon dioxide is used as raw materials to prepare green fuels again.
Resumen de: WO2024097986A2
Disclosed herein are devices, systems, and methods of using aluminum, activated with a liquid metal catalyst stored inside of one or multiple shipping containers or shipping container-like boxes to produce hydrogen and direct heat on demand.
Resumen de: EP4613914A1
A water electrolysis system (100) includes a plurality of water electrolysis stacks (101) connected in series to a DC power supply, a plurality of gas storage tanks (e.g., a hydrogen gas tank (102), a low-pressure hydrogen gas tank (102a)) for storing a gas generated in the water electrolysis stacks, a first gas pressure adjustment mechanism (e.g., a hydrogen gas tank pressure adjustment valve (113)) for adjusting pressure of the gas generated in the entire plurality of water electrolysis stacks, a plurality of second gas pressure adjustment mechanisms (e.g., a water electrolysis stack hydrogen gas pressure adjustment valve (115), a water electrolysis stack low-pressure hydrogen gas pressure adjustment valve (115a)) for adjusting pressure of a gas generated in each of the water electrolysis stacks, and a control device (150) for controlling the first gas pressure adjustment mechanism and the second gas pressure adjustment mechanism.
Resumen de: EP4613913A1
A method for sealing an electrolyzer cell may include applying a sealant between two layers of an electrolyzer cell and compressing the two layers towards each other. The method may further include flowing fluid through a flow field in the electrolyzer cell. The method may further include controlling a temperature of the fluid flowing through the flow field and controlling a pressure applied to the sealant by the compressing the two layers towards each other. The method may further include conforming the sealant to the two layers.
Resumen de: EP4613912A1
The present invention relates to a cathode material for a solid oxide electrolytic cell and its preparation and use. The cathode material for the solid oxide electrolytic cell has a molecular formula of LaxSr1-xFe0.8CuyNi0.2-yO3-δ, wherein 0.1≤x≤0.9, 0.01≤y<0.2, and 0≤δ≤0.5. An electrolytic cell prepared by using the cathode material can efficiently convert CO2 and H2O into synthesis gas through electrochemical catalysis. Furthermore, the electrolytic cell can achieve continuous and stable operation of high-temperature electrolysis of water vapor and/or carbon dioxide at a temperature of 800°C and an electrolysis current density of 0.5 A/cm<2> or more, thereby having good prospects for industrial application.
Resumen de: EP4613700A1
Disclosed is a process for producing hydrogen and a reactor used for this process. The reactor contains a first reaction space for oxidizing metal fuel selected from silicon, magnesium, iron, titanium, zinc, aluminum or alloy containing two or more of these metals with an oxidant and a second reaction space separated from the first reaction space for dehydrogenating hydrogen-containing chemicals into hydrogen and dehydrogenated products.With the reactor and the process of this invention hydrogen is generated from hydrogen-containing chemicals, such as water and metal fuel is used to generate thermal energy to promote the dehydrogenation reaction.
Resumen de: US2024154496A1
A system includes a flow-through electric generator and an electrolytic cell. The flow-through electric generator includes a turbine wheel, a rotor, and a stator. The turbine wheel is configured to receive natural gas from a natural gas pipeline and rotate in response to expansion of the natural gas flowing into an inlet of the turbine wheel and out of an outlet of the turbine wheel. The rotor is coupled to the turbine wheel and configured to rotate with the turbine wheel. The flow-through electric generator is configured to generate electrical power upon rotation of the rotor within the stator. The electrolytic cell is configured to receive a water stream and the electrical power from the flow-through electric generator. The electrolytic cell is configured to perform electrolysis on the water stream using the received electrical power to produce a hydrogen stream and an oxygen stream.
Resumen de: WO2024094264A2
A hydrogen generation system comprising a hydrogen electrolyser, a power converter connected to the electrolyser, and a control system configured to control the power converter to supply power to the electrolyser The system further includes a monitoring system configured to monitor the operation of the generation system, wherein the monitoring system is configured to: determine a plurality of operational parameters of the electrolyser, and, generate one or more performance metrics based on the determined operational parameters, the one or more performance parameters including: the electrical capacitance of the electrolyser, and/or the equivalent series resistance of the electrolyser. Also disclosed is a method for determining operational performance of a hydrogen generation system including an electrolyser.
Resumen de: MX2025005140A
Cell for forming an electrolyser comprising at least one diaphragm or membrane having a first side and a second side opposite the first side, a first cell plate, arranged on the first side of the diaphragm, provided with a first electrode, provided with an inlet channel for supplying or draining electrolyte to or from the electrode, provided with a first discharge channel for discharging oxygen from the electrode, at least one second cell plate, arranged on the second side of the diaphragm, provided with a second electrode and provided with a second discharge channel for discharging hydrogen from the electrode wherein the at least one first and second cell plate are made of a polymer material.
Resumen de: JP2025133000A
【課題】高い水素生成活性を示すＡｌドープＬａＴｉＯ２Ｎ系光触媒及びその製造方法を提供すること。【解決手段】式：ＬａＷＴｉ１－ＸＡｌＸＯＹＮＺで表される組成（但し、Ｘ、Ｙ、Ｚ及びＷは、１．００≦Ｗ≦１．１０，０．０３≦Ｘ≦０．３０，２．００≦Ｙ≦２．５５，及び０．５５≦Ｚ≦１．００を満足する。）を有し、且つペロブスカイト型酸窒化物を主成分とする主触媒粒子を含む、水素生成活性光触媒。【選択図】図１３
Resumen de: WO2025182682A1
A method for operating a water electrolysis apparatus that comprises an electrolytic bath for electrolyzing water, a hydrogen separator to which hydrogen generated in the electrolytic bath is guided, an oxygen separator to which oxygen generated in the electrolytic bath is guided, and a vent line for discharging gas from the hydrogen separator or the oxygen separator and a vent valve provided to the vent line, the method comprising: a step for halting electrolysis of water in the electrolytic bath; and a step for determining whether or not a first index indicating the amount of increase in the concentration of oxygen in gas in the hydrogen separator or the concentration of hydrogen in gas in the oxygen separator has exceeded a first threshold after the electrolysis has been halted. When the first index exceeds the first threshold, the pressure in the hydrogen separator or the oxygen separator is lowered to a first prescribed value by opening the vent valve.
Resumen de: WO2025182218A1
Provided are: an electrolysis device for reducing a circulating current through a grounding wire; a method for controlling the electrolysis device; and a control program for the electrolysis device. This electrolysis device (1) includes an electrolysis cell (100) having a plurality of rectifiers (20) and a plurality of cell stacks (10) having a common positive electrode, wherein the respective positive electrodes of the cell stacks (10) are connected to respective positive electrodes of the rectifiers (20) installed in parallel, respective negative electrodes of the cell stacks (10) are connected to respective negative electrodes of the rectifiers (20), and a balance cable (80) for connecting the negative electrode of at least one of the cell stacks (10) and the negative electrode of at least one of the other cell stacks (10) is provided.
Resumen de: WO2025182228A1
The present invention provides: an operation method for an electrolysis device that is able to quickly reach a rated load; a control device for an electrolysis device; and an electrolysis system. Provided is an operation method for an electrolysis device (100) that is provided with a temperature adjuster (30), which adjusts the temperature of an electrolytic solution supplied to an electrolytic cell (40), the electrolytic cell (40), which electrolyzes the electrolytic solution supplied thereto via the temperature adjuster (30), and a gas-liquid separator (20), which separates a gas and a liquid produced by the electrolytic cell (40), wherein in a state in which the electrolysis device (100) is stopped, warm water is supplied to the temperature adjuster (30).
Nº publicación: JP2025132194A 10/09/2025
Solicitante:
トヨタ自動車株式会社
Resumen de: JP2025132194A
【課題】 光触媒を用いた水素ガス製造装置に於いて、照射光量当たりの水素ガスの生成量をできるだけ多くしつつ、その構成をできるだけコンパクトにする。【解決手段】 水素ガス製造装置は、光を照射されると水を水素と酸素とに分解する分解反応を惹起する光触媒粒子などの光触媒体の分散又は配置された水を収容した断面が四角形の箱型容器部と、箱型容器部の対向する両側面に沿って配列された複数の発光素子とを含み、箱型容器部の対向する両側面から複数の発光素子の発する光が箱型容器部内の前記水へ照射されるよう構成される。【選択図】 図１
BOPI
Sede Electrónica
