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METHOD FOR CONTROLLING ELECTROLYTIC DEVICE AND ELECTROLYTIC DEVICE

Absstract of: EP4807045A1

According to one embodiment, there is provided a method for controlling an electrolytic device (800) including a cathode electrode (2) that contains metal ions and reduces carbon dioxide, and an anode electrode (1) that oxidizes water to generate oxygen, the method including an acquisition step of acquiring information on a potential of the cathode electrode (2) and a potential of the anode electrode (1), and a control step of controlling the potential of the cathode electrode (2) or / and the potential of the anode electrode (1) such that the potential of the cathode electrode (2) is less than the potential of the anode electrode (1) when the potential of the anode electrode (1) is equal to or less than the potential of the cathode electrode (2).

触媒インク、膜・触媒層接合体、およびセルスタック

Absstract of: JP2026146387A

0001 【課題】アニオン交換膜型の水電解に使用される触媒インクまたは膜・触媒層接合体の製造コストを低減できる技術を提供する。 【解決手段】アニオン交換膜型の水電解に使用される膜・触媒層接合体は、アニオン交換膜５１と、アルカリ水に接するアノード触媒層６１とを備える。アノード触媒層６１は、触媒およびポリマーを含む。ポリマーには、水中において中性なポリマーまたはポリオレフィンを使用する。これにより、イオン基が付与された高価なポリマーを使用する場合と比べて、触媒インクまたは膜・触媒層接合体の製造コストを低減できる。 【選択図】図２

触媒インク、膜・触媒層接合体、セルスタック、および膜・触媒層接合体の製造方法

Absstract of: WO2026186219A1

This catalyst ink for forming an anode catalyst layer (61) on an anion exchange membrane (51) contains a solvent, an electrolyte, and a catalyst. The mass ratio of the electrolyte to the catalyst is 0.07-0.3. Thus, the anode catalyst layer (61) can be satisfactorily formed on the anion exchange membrane (51).

OPERATION METHOD FOR ELECTROLYSIS DEVICE, CONTROL DEVICE FOR ELECTROLYSIS DEVICE, AND ELECTROLYSIS SYSTEM

Absstract of: EP4807049A1

Provided are an operation method of an electrolyzer, a controller of an electrolyzer, and an electrolysis system that can quickly reach a rated load. An operation method of an electrolyzer (100) including a temperature controller (30) configured to regulate a temperature of an electrolyte solution supplied to a cellstack (40), the cellstack (40) configured to electrolyze the electrolyte solution supplied via the temperature controller (30), and a gas-liquid separator (20) configured to separate a gas and a liquid from each other that are generated by the cellstack (40) includes: supplying hot water to the temperature controller (30) in a case of a stopped state where the electrolyzer (100) is stopped.

FLUORINE-CONTAINING POLYMER, ELECTROLYTE FILM, MEMBRANE ELECTRODE ASSEMBLY, WATER ELECTROLYSIS DEVICE, PRODUCTION METHOD FOR HYDROGEN, AND PRODUCTION METHOD FOR FLUORINE-CONTAINING POLYMER

Absstract of: EP4806929A1

0001 To provide a fluorinated polymer, from which such a polymer membrane can be produced that when a laminate having a polymer membrane that contains a fluorinated polymer having groups convertible to ion exchange groups sandwiched between transfer base materials is subjected to hot pressing and then the transfer base materials are peeled from the laminate, few pinholes are formed in the polymer membrane. To provide an electrolyte membrane using the fluorinated polymer, a membrane electrode assembly and a water electrolyzer. The fluorinated polymer of the present disclosure is a fluorinated polymer having units based on tetrafluoroethylene and having groups convertible to ion exchange groups, wherein no endothermic peak is observed within a range of 300 to 350°C measured by differential scanning calorimetry.

ELECTROCHEMICAL CELL ASSEMBLY

Absstract of: TW202520535A

The invention relates to an electrochemical cell assembly (10), comprising a first end plate (12), a second end plate and a stack (16) of cell units (18), wherein each cell unit defines an external perimeter, a housing (42) surrounding the stack to define or enclose a fluid volume (48), at least one electrically insulating member (98) being located between the housing and the external perimeters of the cell units and a positioning device (100) for the at least one electrically insulating member, comprising at least one positioning member (106) protruding from either the housing or one of the end plates into the fluid volume, wherein the at least one positioning member has a positioning surface interacting with the electrically insulating member for positioning the electrically insulating member relative to the housing and/or the end plates. The invention also relates to methods of manufacturing an electrochemical cell assembly.

A METHOD AND A CONTROL ARRANGEMENT FOR CONTROLLING A RENEWABLE POWER PLANT

Absstract of: WO2025098577A1

A method and a control arrangement for controlling a renewable power plant (100) connected to a power grid (116) are presented. The method comprises: - determining (210) a dynamic policy (DP) based on: -- a current state (Scur) of the renewable power plant (100), -- a prediction (Ppred) of a future power production of more than one renewable electric power generating units (103) comprised in the renewable power plant, and -- a risk (λ) for instability at a connection (115) to the power grid (116); - determining (220) one or more power-to-gas reference points (RPP2G) based on: -- an available power (Pav) provided by the more than one renewable electric power generating units (103), and -- the determined dynamic policy (DP); and - providing (230) the determined one or more power-to-gas reference points (RPP2G) to at least one power-to-gas unit (120).

IRIDIUM-BASED NANOWIRE AND PREPARATION METHOD THEREFOR, AND IRIDIUM-BASED CATALYST CONTAINING SAME AND PREPARATION METHOD THEREFOR

Absstract of: EP4807047A1

0001 This invention discloses an iridium-based nanowire comprising a twin crystal composed of iridium and at least one transition metal selected from iron, cobalt, and nickel, preferably, the diameter d of the nanowire is 0.5 to 6 nm, and more preferably, the grain size of the twin crystal is (0.8-1.1)·d nm. This invention also relates to an iridium-based catalyst comprising the iridium-based nanowire and preparation methods of the iridium-based nanowire and the iridium-based catalyst. The catalyst of this invention has the advantages of large electrochemical active surface area, high catalytic activity for oxygen evolution reaction, and good stability.

電解装置システムおよび電解装置システムを動作させるための方法

Absstract of: WO2025043281A1

An electrolyser system (400) comprises at least one electrolyser (460) and has an operating energy requirement generated by an energy source (27). The energy source (27) includes waste heat generated by an industrial process whether involving combustion or an exothermic chemical reaction. The electrolyser system (400) further comprises a waste heat to power system (70) for recovering heat from the industrial process to produce electricity for supply to the at least one electrolyser (460); and a heat exchange system (407) for recovering heat from the industrial process and enabling transfer of said recovered heat to the at least one electrolyser (460) as thermal energy. The electrolyser system (400) has substantially higher energy efficiency and lower cost than an electrolyser system operated using an intermittent renewable energy source.

SYSTEM AND METHOD FOR AMMONIA SYNTHESIS COUPLED WITH HYDROGEN PRODUCTION

Nº publicación: EP4806839A1 16/09/2026

Applicant:

ENVISION ENERGY CO LTD [CN]
Envision Energy Co., Ltd.

Absstract of: EP4806839A1

0001 Provided are a system and method for ammonia synthesis coupled with hydrogen production. The system includes: a hydrogen production module, a hydrogen deoxygenation module, an adsorption module, and an ammonia synthesis module connected in sequence; and a nitrogen supply module, a regeneration module, and the adsorption module connected in sequence. When one of the regeneration module and the adsorption module includes a first adsorption tower, the other includes a second adsorption tower. A hydrogen purification module, the nitrogen supply module, and the ammonia synthesis module are all connectable and disconnectable to the first adsorption tower and the second adsorption tower. The nitrogen supply module supplies nitrogen, the regeneration module uses nitrogen to perform desorption regeneration in the first adsorption tower or the second adsorption tower and supplies nitrogen to the adsorption module. The hydrogen production module supplies hydrogen to be purified, and the hydrogen deoxygenation module purifies the hydrogen to be purified and then supplies it to the adsorption module. The adsorption module purifies hydrogen and nitrogen and then supplies them to the ammonia synthesis module, which is at least conducive to reducing energy consumption and system investment costs.