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METHOD OF MINIMIZING DEGRADATION OF CELLS IN AN ELECTROCHEMICAL ENERGY CONVERTER

Resumen de: WO2026215235A1

The present invention relates to a method (100) of minimizing degradation of cells (300) in an electrochemical energy converter (200), wherein the cells (300) each have a membrane (307) and a nickel-containing storage layer (303), wherein the method (100) comprises: - operating (101) the energy converter (200) in an electrolysis operation, in which water is split into hydrogen and oxygen in the cells (300) by supplying electrical current, - ending (103) the electrolysis operation and - converting (105) oxygen stored in the storage layer (303) of the respective cells (300) by the electrolysis operation with hydrogen provided in the electrolysis operation to water and electrical current.

膜

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.

ELECTROLYTIC CELL STACK, ELECTROLYTIC CELL CARTRIDGE, ELECTROLYTIC CELL MODULE, AND METHOD FOR MANUFACTURING ELECTROLYTIC CELL STACK

Resumen de: EP4822060A1

0001 The purpose of the present disclosure is to provide an electrolytic cell stack capable of increasing the amount of product generated by electrolysis while suppressing the temperature rise of the cell stack. An electrolytic cell stack (101) according to the present disclosure comprises: an electrolysis unit cell (105) that has a hydrogen electrode containing Ni, an oxygen electrode, and a solid electrolyte membrane and is formed in the circumferential direction of a base tube; and an interconnector that electrically connects a plurality of electrolysis unit cells arranged in the axial direction of the base tube. When the distance between the ends of the oxygen electrode, oriented in the axial direction of the base tube, in each electrolysis unit cell is defined as the width W of the electrolysis unit cell, and the area on the base tube in which the plurality of electrolysis unit cells are arranged is divided into a first end portion (10), a central portion (11), and a second end portion (12) along the axial direction, the widths W1, W3 of the electrolysis single cells (105b, 105c) positioned in the first end portion and/or the second end portion is 1.5 to 3 times greater than the width W2 of the electrolysis unit cell (105a) positioned in the central portion.

オフグリッド型ハイブリッド電解水素製造システム

Resumen de: CN119710757A

0001 The off-grid hybrid electrolysis hydrogen production system provided in this application includes a new energy power generation unit and an energy storage unit. A power conversion unit converts the electrical energy output from the new energy power generation unit and the energy storage unit into electrical energy suitable for hydrogen production. The electrolysis unit includes a proton exchange membrane hydrogen production module and a solid oxide electrolysis module, used for hydrogen production after the introduction of electrical energy. The controller uses the charge and discharge control of the energy storage unit to track the fluctuation value of the electrical energy output from the new energy power generation unit, ensuring that the total electrical energy fluctuation value output by the new energy power generation unit and the energy storage unit is within a set range. The above-mentioned solution provided in this application can improve the hydrogen production efficiency of the entire hydrogen production system, ensure that the hydrogen production system can operate off-grid, and, by keeping the total electrical energy fluctuation of the new energy power generation unit and the energy storage unit within a set range, this application eliminates the impact of power generation fluctuations from the new energy power generation unit on the hydrogen production effect.

MEMBRANE ELECTRODE ASSEMBLY

Resumen de: EP4822062A1

0001 Provided is a membrane electrode assembly capable of suppressing hydrogen crossover. A membrane electrode assembly for polymer electrolyte membrane water electrolysis which comprises an anode having a catalyst layer, a cathode having a catalyst layer and a polymer electrolyte membrane provided between the anode and the cathode wherein at least one of the catalyst layer in the anode and the catalyst layer in the cathode comprises a fluorinated polymer having ion exchange groups and comprising units having a cyclic ether structure.

METHOD OF PREPARING A CELL REPEAT UNIT FOR USE IN AN ELECTROCHEMICAL CELL STACK

Resumen de: WO2025119499A1

The invention relates to a method of preparing a cell repeat unit (18) for use in an electrochemical cell stack (10), the method comprising providing an electrochemical cell unit (28), said cell unit (28) having an inner fluid volume (44) and a cell opening (60) for transporting fluid between said inner fluid volume (44) and the exterior of the cell unit, providing a gasket being configured to surround the cell opening, and attaching said gasket to said cell unit by a hot melt adhesive dose (80). The invention also relates to a cell repeat unit and an electrochemical cell stack.

ELECTROCHEMICAL CELL ASSEMBLY

Resumen de: WO2025119497A1

The invention relates to an electrochemical cell assembly (10) comprising an end plate (14, 18), a stack (20) comprising a plurality of cell units (22) that are stacked upon one another along a stacking direction (24), and an insulating plate (32) that is interposed between the end plate and the stack, wherein the cell units each comprise a periphery (52) and a central portion (54), wherein at least one cut-out (76) is provided in the insulating plate, said cut-out extending through the insulating plate along the stacking direction, and wherein at least one inset (78) is positioned in said cut-out such that, seen along the stacking direction, the inset and the central portion overlap each other, said inset being formed from a ceramic material.

水電解システム

Resumen de: JP2026167286A

【課題】水電解セルの劣化を抑制しつつ、エージング効果を奏する水電解システムを提供する。【解決手段】水電解セルで水電解を行う水電解システムであって、エージング処理として酸素極側に対して、低電圧側は１．４８Ｖ以下、高電圧側は１．８５Ｖ以下となるサイクル電圧を印加する。【選択図】図４

HYDROGEN PRODUCTION PLANT AND HYDROGEN PRODUCTION METHOD

Resumen de: EP4822059A1

0001 The purpose of the present invention is to improve the safety of a hydrogen production plant. This hydrogen production plant (1) comprises: a solid oxide electrolysis cell (SOEC) (10) which produces a hydrogen-containing gas; and a discharge stack (30) into which the hydrogen-containing gas produced by the SOEC (10) is introduced and which discharges the introduced hydrogen-containing gas to air. The discharge stack (30) has a spray unit (32) which supplies, to the hydrogen-containing gas introduced therein, cooling water for cooling the hydrogen-containing gas.

WATER ELECTROLYSIS-BASED HYDROGEN PRODUCTION SYSTEM COMPRISING A BALANCING CONDUIT CONNECTING TWO GAS SEPARATORS

Resumen de: EP4822058A1

The invention relates to a water electrolysis-based hydrogen production system (1) comprising a stack (2) comprising at least one electrolytic cell, the stack (2) being traversed by a first electrolyte circuit (Circ(H2)) to collect hydrogen gas (G_H2) and a second electrolyte circuit (Circ(O2)) to collect oxygen gas (G_O2); a first separator (3a) disposed in the first electrolyte circuit (Circ(H2)) for separating hydrogen gas (G_H2) from the electrolyte, the first separator (3a) comprising a first vessel (Va) presenting a bottom (Ba); a second separator (3b) disposed in the second electrolyte circuit (Circ(O2)) for separating oxygen gas (G_O2) from the electrolyte, the second separator (3b) comprising a second vessel (Vb) having a bottom (Bb); a balancing conduit (4) fluidly connecting the first separator (3a) and the second separator (3b), the balancing conduit (4) presenting a first end (4a) opening into the first vessel and a second end (4b) opening into the second vessel. The first end (4a) and the second end (4b) of the balancing conduit (4) are positioned, respectively, at a first level (7a) above the bottom (Ba) of the first vessel and at a second level (7b) above the bottom (Bb) of the second vessel to prevent the complete drainage of electrolyte from the first separator (3a) or from the second separator (3b) through the balancing conduit (4).

AMMONIA CRACKING UNIT

Resumen de: EP4821882A2

0001 Die Erfindung betrifft eine Ammoniak-Cracking-Anlage (200, 300), umfassend mindestens einen Cracking-Reaktor (202, 302) mit einem Fluideingang (204, 304) und einem Fluidausgang (206, 306), eingerichtet zum Generieren von Wasserstoff, basierend auf über den Fluideingang (204, 304) zugeführtem Ammoniak, mindestens einen Brennraum (212, 312), eingerichtet zum Bereitstellen von Wärme für den Cracking-Reaktor (202, 302) durch Verbrennen mindestens eines Brennstoffs, wobei die Ammoniak-Cracking-Anlage (200, 300) mindestens einen Elektroerhitzer (230, 330, 340, 388) umfasst, eingerichtet zum Bereitstellen von Wärme für den Cracking-Reaktor (202, 302) durch Umwandeln von elektrischen Energie in Wärme.

A METHOD FOR OPERATING AN ELECTROLYSIS SYSTEM, RELATED CONTROLLER, POWER SUPPLY AND ELECTROLYSIS SYSTEM

Resumen de: EP4822938A1

0001 A method for operating an electrolysis system (2) is provided. The method comprises an electrolyzer (6), a transformer (3), and a rectifier (4, 5), wherein the transformer (3) receives an electrical AC power from an electrical grid (104) and provides an AC power (AC) output to the rectifier (5), wherein the rectifier (5) converts the AC power output (AC) into a DC power input (P1) for the electrolyzer (6), the method further comprising i), identifying begin-of-life (BOL) parameters for an electrolyzer stack (6) based on a measurement, wherein a linear dependency between a DC voltage (Udc) and a related DC current (Idc) is determined, ii), identifying end-of-life (EOL) parameters for the electrolyzer stack (6) based on a theoretical assumption, wherein a linear dependency between a DC voltage (Udc) and the related DC current (Idc) is determined, and iii) deriving a polarization curve of an actual ageing status (M) of the electrolyzer stack based on the identified parameters (BOL, EOL), wherein the derived polarization curve is used for determining of a new DC power input (P2) based on a new AC power setpoint requested from a grid operator. Moreover, a related power supply, a controller, a computer program and a related electrolyzer system are provided.

水蒸気電解システム

Resumen de: JP2026165594A

【課題】生成された水素の純度が低下することを抑制する水蒸気電解システムを提供する。【解決手段】水蒸気から水素を生成する燃料極２１、空気が流通される空気極２２、および、燃料極２１と空気極２２との間に配置される固体電解質２３を備える電解セルスタック２と、水蒸気含有ガスを燃料極２１に供給する水蒸気供給ライン３と、水素を含む生成ガスを導出する水素導出ライン４と、空気極２２に空気を供給する空気供給ライン５と、空気極２２で生成された酸素を含む排出空気を排出する空気排出ライン６と、水素導出ライン４に配置されるとともに、燃料極２１で水素が生成される状態で、燃料極２１に面する空間内の圧力が空気極２２に面する空間内の圧力よりも大きくなるように調整する少なくとも１つの圧力調整弁７と、を備える水蒸気電解システム１ａ。【選択図】図１

水電解システム

Resumen de: JP2026167173A

0001 【課題】複数の水電解スタックにそれぞれ流れる電流の差分を小さくすることができる技術を提供する。 【解決手段】水電解システムは、主電源ユニットと、主電源ユニットに対して互いに並列に接続された複数の並列回路と、複数の並列回路にそれぞれ配置された複数の水電解スタックと、副電源ユニットと、を備える。副電源ユニットは、複数の並列回路のうち、一部の並列回路上へ電気的に配置可能に構成されている。 【選択図】図２

SYSTEMS AND METHODS FOR ELECTROCHEMICAL GENERATION OF SYNGAS AND OTHER USEFUL CHEMICALS

Resumen de: EP4821585A2

Processes and apparatus for electrocatalytically converting carbon dioxide emissions and/or ambient carbon dioxide into useful chemicals are described. The process may include: removing carbon dioxide from ambient air through a carbon capture technique, supplying a carbonate or bicarbonate aqueous solution as cathode feed to a cathode of an electrolytic cell comprising a membrane electrode assembly which includes a bipolar membrane separating an anode from the cathode, and applying an electrical potential difference between the cathode and the anode of the membrane electrode assembly to electrocatalytically reduce the carbonate or bicarbonate aqueous solution to carbon monoxide or another useful chemical.

H2 I2 HI HYDROGEN IODIDE HI PRODUCTION BY REACTION OF HYDROGEN H2 WITH IODINE I2 DISSOLVED IN A SOLVENT

Resumen de: US2020377366A1

A process for the manufacture of hydrogen iodide (HI) from hydrogen (H2) and elemental iodine (I2) dissolved in a suitable solvent with use of at least one catalyst selected from the group of platinum, palladium, nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide.

一种具有二维片状结构的自支撑镍镓合金析氢电极及其制备方法与应用

Resumen de: CN122898918A

本发明公开了一种具有二维片状结构的自支撑镍镓合金析氢电极及其制备方法与应用，制备方法包括以下步骤：将镍网浸没于液态金属镓中，在惰性气氛保护下，以2‑10 ℃/min的升温速率升温至350‑550 ℃后进行保温处理，保温结束后进行骤冷处理，随后采用碱性溶液进行处理，经清洗、干燥后得到所述自支撑镍镓合金析氢电极。本发明制备流程简洁，无需复杂设备以及繁复的化学合成工序，并且工艺可直接放大实现大面积电极制备，拥有良好的规模化应用潜力。本发明制得的具有二维片状多孔结构的自支撑镍镓合金析氢电极作为电催化剂，在电解水析氢反应中展现出优异的催化能力。

一种压力型水电解制氢槽用非金属极框

Resumen de: CN122898903A

本发明公开了一种压力型水电解制氢槽用非金属极框，属于水电解制氢设备技术领域，旨在解决传统金属极框易腐蚀、现有非金属极框在压力型工况下密封可靠性不足及极框厚度偏大等问题。极框主体由非金属工程塑料制成；两侧交替设置拉紧螺栓孔和气液通孔；内部小室流道轴线与极框主体表面呈倾斜角度设置，实现极框薄型化；内侧设O形圈密封凹槽；外侧配置C型包边结构外密封垫片；与双极板密封区域对应位置设密封凹槽；阳极侧设下沉反应区；阴极侧设蛇板结构。本发明通过倾斜流道、交替孔位排布及多层次密封结构协同配合，实现极框免电镀镍、密封可靠、结构薄型化，适用于压力型碱性水电解制氢槽。

一种差压式海水/污水原位制氢耦合系统

Resumen de: CN122898900A

本发明公开了一种差压式海水/污水原位制氢耦合系统，涉及电解水制氢技术领域，解决常压转相系统与高压电解制氢系统耦合时转相膜承受高压、系统需配置减压泵等主动降压装置、结构复杂等问题。该系统包括压力型电解制氢系统、压力缓冲系统和转相系统。压力缓冲系统通过增压泵将碱液从一级碱液储罐加压后输送至压力型电解制氢系统，气液分离系统分离后的碱液无需经过任何主动降压设备（如减压泵），仅依靠压力型电解制氢系统与二级碱液储罐之间的固有压差被动自动回流，形成差压驱动的碱液循环回路。该系统能够实现转相膜组件常压运行、高压直接制氢，省去减压泵等主动降压设备，简化系统结构，降低设备成本，提高系统运行可靠性。

一种抗电源分钟级以下的快速波动电极及制备方法、应用

Resumen de: CN122898919A

0001 本公开提出一种抗电源分钟级以下的快速波动电极及制备方法、应用，属于电解水制氢技术领域。快速波动电极包括：泡沫镍基底；复合催化剂涂层，涂覆于泡沫镍基底表面，复合催化剂涂层包括镍铁合金与石墨烯，且该复合催化剂涂层具有多级孔道结构；铱涂层负载于复合催化剂涂层。通过将镍铁合金和石墨烯作为复合催化剂涂层，镍铁合金具有一定的催化活性，石墨烯具有优异的导电性，两者协同导电，有利于提升电极的导电性，同时，复合催化剂涂层具有多级孔道结构，能够提升导电性和抗波动性。此外，通过在复合催化剂涂层表面修饰铱，显著提升电极在电源快速波动下的抗腐蚀性和反应动力学稳定性，解决传统电极因动态工况导致的寿命短、效率低等问题。

一种用于碱性水电解的聚苯硫醚/细菌纤维素/聚苯硫醚复合膜的制备方法

Resumen de: CN122898019A

0001 本发明公开了一种聚苯硫醚/细菌纤维素/聚苯硫醚三层对称复合隔膜的制备方法，涉及碱性电解水制氢用隔膜技术领域。所述复合隔膜利用液相原位聚合法在细菌纤维素膜两侧原位生长聚苯硫醚层，并通过低温短时热压定型获得。本发明利用细菌纤维素表面羟基与聚苯硫醚单体的氢键相互作用，诱导聚苯硫醚在细菌纤维素膜面定向沉积、成核生长，形成聚苯硫醚薄层。通过原位聚合实现双侧对称包覆，配合低温短时热压工艺，在避免细菌纤维素中间层过度压缩的前提下，实现聚苯硫醚表层致密化调控与界面机械互锁，制备得到具有对称结构的三层复合隔膜。该隔膜在碱性水电解过程中表现出高泡点压力、超低面电阻及超高氧纯度，且长期运行稳定性优异。

一种MIL-101(Cr)/In2S3复合光催化剂及其制备方法与应用

Resumen de: CN122895048A

0001 本发明公开了一种MIL‑101(Cr)/In<2>S<3>复合光催化剂及其制备方法与应用。属于复合光催化材料技术领域。该复合光催化剂由八面体结构的MIL‑101(Cr)与花状微球结构的In<2>S<3>经物理复合而成，MIL‑101(Cr)锚定在In<2>S<3>的片层结构表面及片层间，二者之间形成异质界面。制备方法包括分别水热合成MIL‑101(Cr)和In<2>S<3>，再将二者按比例室温搅拌复合。本发明通过将MIL‑101(Cr)与In<2>S<3>进行物理复合，构建了具有紧密异质界面的复合光催化剂。得益于二者能带结构的高度匹配，在可见光激发下，光生电子可快速从In<2>S<3>转移至MIL‑101(Cr)，抑制了光生载流子的复合，显著提高了光量子效率。该复合光催化剂在可见光下可高效降解四环素，当MIL‑101(Cr)与In<2>S<3>质量比为0.5:0.375时，180min内对四环素的降解率达94.8%，且稳定性优异；同时具有良好的光催化产氢性能，4h产氢量达1753.16μmol。

一种界面硫耦合的析氢催化剂及其制备方法和应用

Resumen de: CN122898909A

0001 本发明提供了一种界面硫耦合的析氢催化剂及其制备方法和应用，属于催化材料技术领域。本发明的析氢催化剂包括多孔镍基底、负载在所述多孔镍基底上的硫化镍纳米片和负载于所述硫化镍纳米片上的Pt纳米团簇；所述硫化镍纳米片与Pt纳米团簇之间通过硫桥键连接。硫桥键能同时调控电子结构、削弱界面水分子氢键网络、降低气液界面张力促进气泡快速释放并有效抑制Ca<2+>和Mg<2+>引发的氢氧化物沉积，提高复杂天然海水环境中催化剂的活性与稳定性。本发明提供的界面硫耦合的析氢催化剂在碱性海水和天然海水体系中均表现出优异的催化活性，可长久稳定运行200h，具有优异的稳定性。

一种制氢储氢系统及方法

Resumen de: CN122898896A

0001 本公开实施例提供了一种制氢储氢系统及方法，所述系统包括：控制子系统、制氢子系统和储氢子系统；制氢子系统，包括至少一个电解池和水电解循环管路；用于利用所述至少一个电解池对水进行电解制备氢气；储氢子系统，包括气态储氢罐、液态储氢罐和固态储氢罐；用于基于需求条件选择合适的储氢罐对氢气进行储存；控制子系统与制氢子系统和储氢子系统通信连接，用于对制氢子系统和储氢子系统的运行进行调控。通过控制子系统与高效的电解水制氢及先进的储氢技术相结合，实现了从水电解到氢气储存再到能量转换的全流程优化，提升了系统的整体性能和经济效益，推动了清洁能源的有效利用。

一种超薄碳层包覆二元金属硫化物电极的制备方法及应用

Nº publicación: CN122898923A 13/10/2026

Solicitante:

南昌航空大学

Resumen de: CN122898923A

0001 本发明属于电催化材料领域，公开了一种超薄碳层包覆二元金属硫化物电极的制备方法及应用，电极的制备方法包括以下步骤：将金属源、碳源和硫源加入溶剂中混合均匀，得到混合溶液，将电极基底放入混合溶液中进行水热反应，即得所述超薄碳层包覆二元金属硫化物电极。本发明通过一步水热法制备超薄碳层包覆二元金属硫化物电极，从而提高电极的活性比表面积，促进活性位点的暴露，进而增强催化电极的电化学性能。不仅能够解决目前电解水制氢领域的电化学活性差以及在大电流密度下稳定性差的技术问题，而且还能通过电解海水制氢耦合提镁实现氢气和氢氧化镁联产，大幅提升电解海水制氢技术的经济效益。