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BI-FUNCTIONAL WEAVE BODY

Resumen de: 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.

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

Resumen de: 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).

MEMBRANE ELECTRODE ASSEMBLY, HYDROGEN PRODUCTION METHOD, AND HYDROGEN PRODUCTION SYSTEM

Resumen de: EP4786655A1

Provided are a membrane electrode assembly having a structure in which a cathode catalyst layer, a hydroxide ion-conductive membrane, and an anode catalyst layer are laminated in this order, in which a tensile strength (a) and a breaking elongation (b) of a water-swollen body of a polymer contained in the cathode catalyst layer and/or the anode catalyst layer and a tensile strength (c) and a breaking elongation (d) of a water-swollen body of a hydroxide ion-conductive polymer constituting the hydroxide ion-conductive membrane satisfy the following relationships (Ri) and (Rii), a method for producing hydrogen, and a hydrogen production system. Tensilestrengtha>tensilestrengthcBreakingelongationb>breakingelongationd

HYDROXY ION CONDUCTIVE MEMBRANE, METHOD FOR PRODUCING HYDROXY ION CONDUCTIVE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, HYDROGEN PRODUCTION METHOD, AND HYDROGEN PRODUCTION SYSTEM

Resumen de: EP4786656A1

Provided are a hydroxide ion-conductive membrane including a porous substrate and a hydroxide ion-conductive polymer disposed at least in pores of the porous substrate and having a thickness of the hydroxide ion-conductive membrane of 5 µm or more and less than 50 µm, in which the polymer has 50% by mole or more of a constituent component (I) derived from a polyfunctional polymerizable monomer having a total of two or more atoms of at least one of an oxygen atom, a sulfur atom, or a nitrogen atom in a structural moiety other than a polymerizable group in constituent components of the polymer, and a method for producing the hydroxide ion-conductive membrane, and a membrane electrode assembly, and a method for producing hydrogen and a hydrogen production system, each using the membrane electrode assembly.

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

Resumen de: 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.

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

Resumen de: 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

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

Resumen de: 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.

MEMBRANE

Resumen de: 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.

ELECTROLYSIS SYSTEM

Resumen de: 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.

DE-ALLOYED ELECTROCATALYST

Resumen de: 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.

MODULAR ELECTROLYSIS SYSTEM

Resumen de: 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.

PROCESS AND REACTOR FOR GENERATING THERMAL ENERGY AND BASE CHEMICALS

Resumen de: EP4529979A1

0001 Disclosed is a process for producing thermal energy and base chemicals and a reactor used for this process. The reactor contains a reaction space for oxidizing metal fuel with water and optionally other oxidants. The reaction space is connected at its outlet with a separation device for solids contained in the product gas leaving the reaction space. In the reaction space a first flame is generated which triggers the reaction of metallic fuel with oxidant to generate a second flame within the reaction space. The first flame is generated by using a fuel mixture which is introduced into the reaction space via one or more feed lines. At the end of this feed line(s) an ignition device acts on the fuel to ignite the first flame which in turn triggers the formation of the second flame. The thermal energy generated by the oxidation reaction is recovered by using one or more heat exchangers which may be placed at different lociations of the reactor. 0002 With the reactor and the process of this invention hydrogen and/or cabon monoxide is generated from metal fuel and water or CO<2>. When using water and carbon dioxide as oxidant a mixture of hydrogen and carbon monoxide is produced. These products can be used as base chemicals in various processes.

ELECTROLYTIC CELL HAVING OPTIMIZED CONTACTING OF A CATALYST LAYER

Resumen de: WO2025124766A1

The invention relates to an electrolytic cell (01) for the electrolysis of CO2, comprising a cathode side (02) and an anode side (03). The electrolytic cell (01) comprises a cathode plate (04), a gas chamber (06), a gas-diffusion layer (08), a catalyst layer (09), a water chamber (07) and an anode plate (05). The contacting of the catalyst layer (09) is optimized by using a plurality of current bridges (10). To this end, these current bridges (10) are electrically conductively connected to the cathode plate (04) and to the catalyst layer (09) while penetrating the gas-diffusion layer (08).

OFF-GRID HYBRID ELECTROLYTIC HYDROGEN PRODUCTION SYSTEM

Resumen de: 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.

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

Resumen de: 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.

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

Resumen de: 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.

气液混合在线清洗工业废水电解制氢传质膜装置及方法

Resumen de: CN122499645A

0001 本发明涉及一种气液混合在线清洗工业废水电解制氢传质膜装置及方法，属于清洁能源与氢能技术领域。本发明的装置包括壳体、隔板、疏水透气膜、环形射流分布器及气液混合单元，其中，壳体经隔板分隔为碱液腔与废水腔，环形射流分布器环绕疏水透气膜碱液侧布置。所述方法通过监测跨膜压差或补水速率触发，先停止或旁路进料并排空残留液体，再经环形射流分布器向碱液侧喷射气液混合流体反吹膜孔污染物，同步通过废水侧通入反洗水协同冲刷携带污染物排出，无需拆卸膜组件或使用化学药剂。本发明实现原位自动清洗，无清洗死区，能显著延长膜寿命、提升系统运行连续性，降低运维成本与安全隐患，兼顾经济性与环境友好性。

一种超纯水电解制氢用低能耗恒温供水系统

Resumen de: CN122503892A

0001 本发明涉及电解水制氢技术领域，提供了一种超纯水电解制氢用低能耗恒温供水系统，包括PEM电解槽、超纯水供给单元、循环供水回路、局部净化及旁路单元、数据获取模块、数据分析模块、能耗判定模块和能耗控制模块；数据分析模块根据电流、电压、循环流量及进回水温度确定热负荷匹配参数，并确定水质表征状态和流动表征状态；能耗判定模块先判断升温是否为真实热负荷；在非真实热负荷状态下，能耗控制模块根据水质和流动状态确定能耗异常原因，并执行降泵降冷、短时流动纠偏、局部净化或降低电流密度控制，以降低恒温供水附加能耗。

電気触媒用電極の製造方法

Resumen de: 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.

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

Resumen de: 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.

风光电力离网制氢碱性电解槽的电力补偿协同系统及方法

Resumen de: CN122503886A

本发明公开了一种风光电力离网制氢碱性电解槽的电力补偿协同系统，属一种电解制氢系统，包括风光发电单元与碱性电解槽，碱性电解槽接入直流母线，直流母线还接入风光发电单元；可逆固体氧化物燃料电池堆也接入直流母线，直流母线还接入PLC控制单元；可逆固体氧化物燃料电池堆与碱性电解槽分别接入氢气储运装置；PLC控制单元用于通过阈值判断当前碱性电解槽与可逆固体氧化物燃料电池堆的输入状态。通过在系统中集成可逆固体氧化物燃料电池堆，并通过PLC控制单元根据阈值判断切换不同的系统模式，即闭环保护体系使碱性电解槽运行过程中无需外部干预，解决了碱性电解槽在离电网运行时受到风光发电波动影响，频繁启停和功率波动的不匹配问题。

一种磷掺杂镍铁复合氧化物碱性电解水催化剂及其制备方法

Resumen de: CN122503903A

本发明公开了一种磷掺杂镍铁复合氧化物碱性电解水催化剂及其制备方法，涉及电解水制氢技术领域。所述催化剂以泡沫镍为基底，表面负载化学式为NiFeOx:P的磷掺杂镍铁复合氧化物，其中Ni与Fe原子比为1‑4:1，磷掺杂量为0.5‑3 wt%，并呈垂直纳米片结构，片层厚度10‑30 nm。其制备方法包括：泡沫镍预处理；将镍盐、铁盐和磷源溶于醇‑水混合溶剂得前驱体溶液；水热反应生长前驱体；惰性气氛煅烧。该催化剂在1 M KOH中10 mA/cm2过电位低至225 mV，塔菲尔斜率38 mV/dec，100小时衰减＜5%，且成本低廉，适用于碱性电解水制氢领域。

ポリマー及びそれを用いた電解質膜

Resumen de: 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

一种面向纯水电解的一体化膜电极

Resumen de: CN122503888A

0001 本申请涉及电解水制氢技术领域，公开了一种面向纯水电解的一体化膜电极，该膜电极由质子交换膜、复合催化层及界面处的三维连续铂金属网络组成，复合催化层由非贵金属催化剂、羟基化碱性氧化物及阴离子树脂制成，制备通过在界面引入铂颗粒层后进行原位重构，使铂动态溶解并再沉积，形成贯穿锚定在界面两侧的导电网络，利用三维连续铂网络显著降低了界面接触电阻，通过机械互锁增强界面稳定性；利用羟基化氧化物构建局部弱碱性环境，配合铂网络阻隔作用，使非贵金属催化剂能够在纯水工况下稳定运行；同时，铂网络可催化氧化渗透氢，抑制了氢脆风险。本申请最终实现了高活性、低成本且高安全性的纯水电解。

一种析氢阴极催化剂的制备方法、产品及应用

Nº publicación: CN122500208A 04/08/2026

Solicitante:

开芯能科技（盐城）有限公司

Resumen de: CN122500208A

0001 本发明涉及析氢电极材料制备技术领域，特别是涉及一种析氢阴极催化剂的制备方法、产品及应用。该析氢阴极催化剂的制备方法，包括以下步骤：将镍源、钼源、柠檬酸、高价金属盐、碳酸氢钠及尿素溶于溶剂中，配制成混合溶液；对混合溶液进行第一温度的恒温加热反应，之后加入有机溶质进行第二温度的恒温加热反应，得到前驱体；对前驱体进行热处理，得到析氢阴极催化剂；高价金属盐为Co、Zr、Cr、Ce、Ti、Nb、La金属盐中的至少一种。本发明提供的分段式成核生长制备方法所制备的高价金属掺杂NiMo基析氢阴极催化剂为不易团聚的超细粉体，比表面积大，产率高，具有良好的析氢活性，和耐氧化稳定性。