Alerta

A SEPARATOR FOR ALKALINE WATER ELECTROLYSIS

Absstract of: AU2024406508A1

A separator for alkaline water electrolysis comprising: - a porous support (100) and on at least one side of the support, in order: - an optional porous layer including a Polymer A (200), and - a non-porous layer including a Polymer B (300), characterized in that the separator is obtainable by coating on the porous support (100) or the optional porous layer (200) a Polymer B solution having a viscosity of at least 400 mPa.s, measured at 20°C and a shear rate of 100 s-1, and wherein the separator has a Bubble Point, measured according to ASTM F316, of at least 5 bar.

OFF-GRID HYBRID ELECTROLYTIC HYDROGEN PRODUCTION SYSTEM

Absstract of: EP4786651A1

0001 An off-grid hybrid electrolytic hydrogen production system provided in the present application comprises a new energy power generation unit and an energy storage unit. A power conversion unit converts electric energy output by the new energy power generation unit and the energy storage unit into electric energy suitable for hydrogen production. An electrolysis unit comprises a proton exchange membrane hydrogen production module and a solid oxide electrolysis module, used to produce hydrogen after the introduction of electric energy. A controller uses control of charge and discharge of the energy storage unit to track an electric energy fluctuation value output by the new energy power generation unit, so that a value of total electric energy power fluctuation output by the new energy power generation unit and the energy storage unit is within a set range. The described solution provided by the present application can improve the hydrogen production efficiency of the entire hydrogen production system, and ensure that the hydrogen production system can achieve off-grid operation. Moreover, the present application eliminates the influence of power generation fluctuation of a new energy power generation unit on a hydrogen production result, by means of causing the total power fluctuation output by the new energy power generation unit and the energy storage unit to be within a set range.

CATALYST COMPOSITE WITH GAS PERMEABILITY REDUCTION EFFECT AND POLYMER ELECTROLYTE MEMBRANE INCLUDING SAME

Absstract of: EP4786049A1

0001 The present invention relates to a catalyst composite and a polymer electrolyte membrane including same, wherein the catalyst composite is manufactured by complexing platinum and a metal having a higher ionization tendency than platinum with a functional support. When applied to a polymer electrolyte membrane, the catalyst composite effectively reduces the gas permeating from the counter electrode.

BI-FUNCTIONAL WEAVE BODY

Absstract of: US2025101608A1

An illustrative example embodiment of an apparatus and method includes providing a weave body downstream of an electrolyzer, purifying hydrogen by demisting a hydrogen stream exiting the electrolyzer via flow through the weave body; and de-oxidizing the hydrogen stream during flow through the weave body.

Method of operating an electrolyser system

Absstract of: GB2703615A

A method 300 of operating an electrolyser system comprising a plurality of stacks of electrolyser cell units wherein production rate differs between stacks, comprising identifying 305 a first subset of stacks characterised by a first production rate at a nominal temperature and voltage; identifying 310 a second subset of stacks characterised by a second production rate at the nominal temperature and voltage; identifying 315 an overall production rate target; determining 320 a plurality of subsidiary production rate targets for the respective subsets of stacks based on dividing the overall production rate target by the number of stacks; deriving 330 a value for a first control parameter for the first subset of stacks to satisfy their subsidiary production rate target; and controlling 325 the plurality of stacks at the overall production rate target using a first control parameter derived for the first subset of stacks. Also disclosed is a method comprising calculating first and second collective production rates for the first and second subsets of stacks; identifying that the first collective production rate is greater than the second collective production rate; and controlling the plurality of stacks using at least one control parameter derived for the first subset of stacks. Figure 3

DE-ALLOYED ELECTROCATALYST

Absstract of: WO2025068691A1

The present invention provides a process for preparing solid, non-porous, de-alloyed electrocatalyst particles, the process comprising the steps of: providing solid, non-porous, platinum group metal alloy precursor particles PMn in which P is a platinum group metal and M is at least one alloying metal; in a de-alloying step to provide the solid, non-porous, de- alloyed electrocatalyst particles; supplying carbon monoxide to the precursor particles under conditions which remove at least some of the metal M from the surface of the precursor particles; wherein the de-alloyed electrocatalyst particles are particles of a platinum group metal alloy PMX in which P is a platinum group metal and M is at least one alloying metal, wherein the total atomic composition relative to P of M at the surface of the de-alloyed electrocatalyst is lower than the total atomic composition relative to P of M in the bulk of the de-alloyed electrocatalyst, and wherein x is less than n.

ISOLATION CIRCUIT FOR HYDROGEN PRODUCTION SYSTEM AND RENEWABLE ENERGY HYDROGEN PRODUCTION SYSTEM COMPRISING SAME

Absstract of: EP4787698A1

0001 Provided in the present application are an isolation circuit for a hydrogen production system and a renewable energy hydrogen production system comprising same. The isolation circuit includes at least one direct-current conversion module and at least one DC-AC converter. The direct-current conversion module comprises a single-output port and a multi-output port, the single output port of the direct-current conversion module being in coupled connection with the DC side of the DC-AC converter, the multi-output port of the direct-current conversion module being in coupled connection with a plurality of external unidirectional power flow units and/or bidirectional power flow units, and each unidirectional power flow unit at least comprising a hydrogen production unit. The AC side of each DC-AC converter is in series coupled connection with an external alternating-current power grid or direct-current power grid. The present solution simultaneously satisfies application requirements of two coupling scenarios, effectively integrates various types of external units, and combines all components in systems into one, thus facilitating positioning of faults and repair while reducing costs.

MODULAR ELECTROLYSIS SYSTEM

Absstract of: EP4530376A1

The invention relates to a modular electrolysis system comprising mulitple modules, wherein each of the mulitple modules comprises a support frame and at least one interface accessible from outside the support frame and configured to connect the module with at least one of the remaining modules, the mulitple modules comprising a water-gas coarse separation module downstream an anode outlet of the electrolysis cell module, and a water-gas fine separation module downstream a liquid outlet of the water-gas coarse separation module.

ELECTROLYSIS SYSTEM

Absstract of: EP4786653A1

Provided is an electrolysis system in which current efficiency of an electrolytic hydrogenation reaction is improved by restricting the amount of water migrating to a cathode while also supplying moisture to an electrolyte membrane and reducing resistance of the electrolyte membrane. Provided is an electrolysis system including an electrolyte membrane having proton conductivity, a cathode containing a catalyst for an electrochemical reaction involving protons, an anode containing a catalyst for oxidizing water to produce protons, and a structure that supplies water vapor to the anode, wherein the anode catalyst layer contains, in part thereof, an ionomer having proton conductivity, and a ratio of (002) diffraction peak intensity of carbon relative to (110) diffraction intensity of Ir oxide of the anode catalyst layer and ohmic resistance of the electrolysis system are within specific ranges.

MEMBRANE

Absstract of: WO2025068713A1

The specification describes bilayer electrolyte membrane comprising: a first layer comprising a polymer electrolyte having particles of a recombination catalyst dispersed therein; and a second layer comprising a polymer electrolyte not having any recombination catalyst dispersed therein; wherein the thickness of the bilayer electrolyte membrane is 40-60 µm; the concentration of recombination catalyst in the first layer is 1-100 µg/cm2; and the bilayer electrolyte membrane is a single coherent polymer film. Also described is a method for preparing the bilayer electrolyte membrane, a catalyst coated membrane for an electrochemical device comprising the bilayer electrolyte membrane, and a fuel cell comprising the catalyst coated membrane.

INTEGRATED SYSTEM FOR DEMINERALIZATION AND/OR PURIFICATION OF WATER AND FOR SIMULTANEOUS PRODUCTION OF HYDROGEN

Absstract of: WO2025068933A1

The present invention relates to an integrated system for demineralization and/or purification of water and for the simultaneous production of hydrogen comprising a heat-dissipating element thermally connected to a system for demineralization and/or purification of water which is hydraulically connected to an electrochemical cell producing hydrogen, wherein the system for demineralization and/or purification of water is a system operating through the principle of thermal distillation via membrane and comprises at least two units, each comprising a first chamber, inside which waste water to be demineralized and/or purified flows under pressure and a second chamber, inside which demineralized and/or purified water flows under pressure in the opposite direction with respect to the direction of flow of the waste water, the two chambers being separated by a preferably microporous hydrophobic membrane, wherein the at least two units are placed thermally in series and hydraulically in parallel with continuous flow, wherein each unit is hydraulically connected to a source of waste water and a source of demineralized and/or purified water, in particular wherein each first chamber comprises an inlet portion, hydraulically connected to the source of waste water, for introduction into the first chamber of waste water, while each second chamber comprises an inlet portion, hydraulically connected to the source of demineralized and/or purified water, for introduction into the second chamber

GRID FORMING CONTROL IN A POWER SYSTEM COMPRISING A HYDROGEN ELECTROLYZER STACK

Absstract of: WO2025067620A1

According to the invention it is provided a method for controlling a grid connected power converter having a DC side with a DC link and an AC grid side, and being configured to control power supply to a hydrogen electrolyzer stack. The power supply to the hydrogen electrolyzer stack is controlled by controlling the DC link to thereby control hydrogen production. The method comprises: determining a grid voltage reference; providing a grid forming control for controlling at least the phase angle of the voltage of the power converter using a grid forming controller, operating according to a grid forming algorithm, the grid forming controller being configured to emulate inertia through control of the voltage of the power converter towards the grid voltage reference; the grid forming controller emulating inertia by charging and discharging an inherent capacitance of the electrolyzer stack; monitoring at least one operating parameter of the hydrogen electrolyzer stack; and limiting a change in charging level of the inherent capacitance based on the monitored operating parameter of the electrolyzer stack.

COMPOSITE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND DEVICES SUCH AS FUEL CELL, REDOX FLOW BATTERY, OR ELECTROLYSER COMPRISING THE MEMBRANE

Absstract of: EP4786037A2

This disclosure relates to polymer electrolyte 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. This disclosure also relates to composite membrane-assemblies and electrochemical devices comprising the composite membranes of the disclosure, and to methods of manufacture of the composite membranes.

OFFSHORE ELECTROLYSIS SYSTEM, AND METHOD FOR OPERATING AN OFFSHORE ELECTROLYSIS SYSTEM

Absstract of: WO2025124791A1

The invention relates to an offshore electrolysis system (100) comprising a wind turbine (1) having a tower (19), which is anchored to the seabed, and having an electrolysis plant (5), wherein the electrolysis plant (5) is connected to the wind turbine (1) by a supply line (11), and wherein the electrolysis plant (5) has an electrolyser (13) which is arranged in a container (9), wherein the container (9) is arranged below sea level (25). The invention also relates to a method for operating a corresponding offshore electrolysis system. In this method, water is broken down into hydrogen (H2) and oxygen by an electrolyser (13) of the electrolysis plant (5), which electrolyser is located below sea level (25), wherein the hydrogen (H2) produced is transported away via a product gas line (7).

電気触媒用電極の製造方法

Absstract of: WO2021209547A1

The present invention relates to a method for the preparation of an electrode suitable for electrocatalysis comprising an electrocatalytically active material, in particular an anode for alkaline water hydrolysis, said method comprising the steps of (i) providing a carrier suitable for an electrode comprising an electron conductive material, (ii) providing a precursor mixture suitable for the combustion synthesis method, (iii) transferring to the electron conductive material of the carrier of step (i) the precursor mixture of step (ii) to produce an electrode precursor; and (iv) heating the electrode precursor obtained in step (iii) to produce self-ignition of the transferred precursor mixture. The invention also relates to an electrode obtainable by the method of the invention and to its use in electrocatalysis.

アンモニア分解プロセスからの水素の回収

Absstract of: EP4501433A1

Process of separating hydrogen from an effluent gas produced by an endothermic ammonia cracking reaction, said effluent gas comprising hydrogen and nitrogen, said process comprising a step of pressure swing adsorption separation of the effluent gas, said step comprising separating the effluent gas by pressure swing adsorption according to a pressure cycle, thereby producing a hydrogen product gas and generating off gas, the pressure cycle comprising an off gas generation period of time during which said off gas is generated, said off gas generation period of time comprising :- a fuel off gas generation period of time during which a fuel off gas is generated,- a nitrogen richer off gas generation period of time during which a nitrogen richer off gas is generated, said nitrogen richer off gas having a higher nitrogen content than the fuel off gas, wherein the process comprises :- routing the fuel off gas to a furnace (5) and combustion of said fuel off gas in said furnace (5) to provide heat to the endothermic ammonia cracking reaction,- diverting the nitrogen richer off gas from the furnace (5).

プロトン交換膜（ＰＥＭ）電解装置で使用するためのマイクロエキスパンド金属メッシュ多孔質輸送層（ＰＴＬ）を有するアノードパックアセンブリおよびその製造方法

Absstract of: US2025027210A1

A PEM electrolyzer PTL is created from micro-expanded mesh metal foil layers to allow for a precise level of control over the thickness of the layers, porosity, tortuosity, pore size, interlayer connectivity, and surface roughness. Pore sizes range from 3 μm to 30 μm with a porosity (mesh open area) of 10-50%. A PEM anode pack assembly is formed from the micro-expanded PTL layers with a multi-layer expanded metal flow field and bipolar plate. The 3 subcomponents are diffusion bonded together to form an integrated pack and PVD coated on the outside surfaces.

ポリマー及びそれを用いた電解質膜

Absstract of: JP2026125682A

0001 【課題】 本発明は、上記事情に鑑み、電解質膜、特にアニオン交換膜型水電解法に有用であるポリマーと、それを用いた電解質膜を提案するものである。具体的には、アルカリ耐久性に優れ、更には電解性能に優れる電解質膜用ポリマーの提供を目的とする。 【解決手段】 下記式（１）で表される骨格を構成単位中に有するポリマー。 ［化１］ ［式（１）中、Ｒ<１>は、それぞれ独立に、イオン交換基又はハロゲノ基で置換されていても良いＣ１３－Ｃ２０の直鎖状、分岐状又は環状のアルキル基を表す。］ 【選択図】なし

触媒、アノード電極、および電気化学反応器

Absstract of: JP2026125887A

【課題】水などの酸素発生源から酸素を発生させる触媒において、酸素発生に必要な電圧を低下させることができる触媒、その触媒を有するアノード電極、および電気化学反応器を提供する。【解決手段】酸素発生源から酸素を発生するための触媒であって、２つのＣｕ原子と、ハロゲン原子と、Ｎ原子含有有機配位子と、有する金属錯体である、触媒である。【選択図】なし

电解水制氢用T型耦合式气液分离冷凝一体化装置及工作流程

Absstract of: CN122499581A

0001 本发明涉及电解水制氢设备的技术领域，提供一种电解水制氢用T型耦合式气液分离冷凝一体化装置及工作流程，包括壳体，所述壳体包括水平分离段、垂直冷凝段和集液段，所述集液段与所述垂直冷凝段位于同一垂直面且垂直冷凝段位于集液段的上方，所述水平分离段与垂直冷凝段、集液段连通并共同构成T型结构；所述垂直冷凝段与所述水平分离段的交汇处形成气体转向通道，使初步脱液后的气体由水平流动转变为垂直向上流动，所述转向通道行成导流过渡结构，避免气体流动产生涡流导致二次夹带。本发明采用三级协同净化，气液分离与除沫效率优异采用气液旋流初分+冷凝深度脱水+丝网除沫三级协同处理机制，配合强旋流场强化液滴脱离、均流板优化气流分布，可高效去除气体中夹带的电解液雾滴与水蒸气。

NiMn-LDH析氧电极及其制备方法

Absstract of: CN122503897A

0001 本申请提供了一种NiMn‑LDH析氧电极及其制备方法，所述NiMn‑LDH析氧电极的制备方法包括以下步骤：以导电基底为工作电极，置于电镀液中进行电沉积处理，电镀液含有镍盐、锰盐以及聚四氟乙烯，在导电基底上沉积形成NiMn‑LDH催化层。本申请通过将导电基底在含有镍盐、锰盐、导电盐以及聚四氟乙烯分散液的电镀液中进行电沉积处理，所形成的NiMn‑LDH催化层具有由亲水的催化剂活性中心和分散的疏水聚四氟乙烯位点组成的非均相表面，既能缩短气泡停留时间，提升传质效率，消除气泡屏蔽效应，又能增强催化层与导电基底、催化层内部之间的结合强度，提升NiMn‑LDH析氧电极的机械稳定性与服役寿命。

Co-generative device for the production of hydrogen, electric power, and thermal power with zero emissions

Absstract of: WO2025126055A1

A system is described for the production of hydrogen and thermal power through a spontaneous electrochemical oxidation-reduction reaction, formed by at least one reactor (1) composed by a loading line (2) that introduces a reacting material into a reaction basin (6); at least one discharge body (12) for the hydroxide produced during the reaction, wherein the pH is transformed into a desired value by the introduction of an acidic solution through a loading line (13); at least one loading line (3) of water that is supplied into the reaction basin (6); at least one cathode body (5) made of porous material containing gaseous oxygen; at least one loading line (4) that allows the oxygen to be replenished at the cathode body (5); at least one porous material filter (7) for separating the gaseous hydrogen from solid residues produced during the reaction; and at least one discharge line (8) for the release of gaseous hydrogen. The system is configured to perform a process for the production of hydrogen and thermal power through an oxidation-reduction reaction between a material acting as an anode, a material acting as a cathode and a material acting as an electrolyte.

System and method for production of hydrogen peroxide

Absstract of: WO2025147706A1

The present disclosure relates, generally, to an electrochemical system and method of producing hydrogen peroxide.

一种硼掺杂含钽高熵层状双氢氧化物及其制备方法和应用

Absstract of: CN122484836A

0001 本发明属于电催化技术领域，具体涉及一种硼掺杂含钽高熵层状双氢氧化物及其制备方法和应用。该硼掺杂含钽高熵层状双氢氧化物的制备方法包括将镍源、铁源、钴源、钽源和钼源置于含有尿素和氟化铵的溶液中，得到混合溶液；向所述混合溶液中加入泡沫镍铁，经水热反应，得到负载在泡沫镍铁上的含钽高熵层状双氢氧化物；按照硼氢化钠、负载在泡沫镍铁上的含钽高熵层状双氢氧化物和硼氢化钠的加料顺序，将硼氢化钠和负载在泡沫镍铁上的含钽高熵层状双氢氧化物置于石英舟中，在通入饱和氩气的条件下进行程序升温硼化，得到硼掺杂含钽高熵层状双氢氧化物。采用该方法制备得到的硼掺杂含钽高熵层状双氢氧化物具有大电流密度下的高催化活性的特点。

一种电解水阳极催化剂及其制备方法与应用

Nº publicación: CN122484811A 31/07/2026

Applicant:

香港理工大学深圳研究院

Absstract of: CN122484811A

0001 本发明公开了一种电解水阳极催化剂及其制备方法与应用，涉及锂离子电池回收技术领域。本发明以回收的钴酸锂电池正极材料为原料，利用过硫酸盐对钴酸锂正极进行表面调控，结合液相复合与热处理工艺，实现钌元素在钴酸锂表面的高效负载与掺杂，获得Ru/LCO‑PMS催化剂。该催化剂在酸性析氧催化反应中，表现出优异的电化学活性与稳定性。本发明将废弃钴酸锂锂离子电池高值化回收利用，实现了废弃电池正极材料高值转化，不仅为无害化处理废弃电池正极材料提供了新的思路，也为低成本、高性能电催化材料的制备提供了新的技术方案。而且原料成本低、工艺流程短、绿色无污染等特点，为废弃锂离子电池的回收及高值转化提供了高效的解决方案。