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EMBOSSED BIPOLAR PLATE

Resumen de: WO2026057439A1

The invention relates to a bipolar plate (10) having main surfaces (14, 16), a first plurality of elevations (18) and a first plurality of depressions (20), a second plurality of elevations and a second plurality of depressions, wherein a depression (20) has a counterpart elevation, wherein each elevation (18) and each depression (20) has a length (L), a width (B) and a height, wherein each elevation has, at its free end, as viewed in height direction, a tolerance compensation device which is set up to be elastically and/or plastically deformable such that the height of a corresponding elevation is reduced when a force acts on the free end of the elevation. The invention further relates to a stack comprising two such bipolar plates.

複数個の加湿モジュールが並列連結された燃料電池用膜加湿器

Resumen de: CN121002684A

There is provided a fuel cell membrane humidifier having a plurality of humidification modules connected thereto, including: a first humidification module including a first air inlet on one side thereof, a first air outlet on the other side thereof, and a first intermediate housing in which at least one humidification membrane is disposed; a second humidification module including a second air inlet on one side thereof, a second air outlet on the other side thereof, and a second intermediate housing in which at least one humidification membrane is disposed; and a connecting member including a first coupling hole into which the first humidification module can be inserted and a second coupling hole into which the second humidification module can be inserted.

ELECTROCHEMICAL CELL STACK AND ELECTROCHEMICAL DEVICE

Resumen de: EP4711503A2

An electrochemical cell stack includes: a stack including electrochemical cells; a first clamping plate provided in contact with the stack; and a heat conduction member provided in contact with the first clamping plate. The heat conduction member is lower in heat conductivity than the first clamping plate under an operating temperature range of the electrochemical cell stack.

燃料電池セルの製造方法

Resumen de: JP2026049297A

【課題】ガス漏れの発生を抑制することができる燃料電池セルの製造方法を提供する。【解決手段】凸部及び凸部に隣接してガスケットを跨ぐように配置される凹部を有する金型により加熱プレスして燃料電池セルを製造する方法であって、２つのセパレータの間に熱可塑性樹脂を具備するシートを配置し、金型により２つのセパレータを挟んで押圧して加熱する加熱プレスする工程を含み、金型の凸部により押圧された熱可塑性樹脂の一部を凹部が具備された位置に移動させる。【選択図】図３

ELECTROCHEMICAL CELL AND ELECTROCHEMICAL DEVICE

Resumen de: EP4711506A1

Provided are an electrochemical cell and an electrochemical device that are easily manufactured and capable of retrofitting. The electrochemical cell includes: a first plate and a second plate between which an anode chamber and a cathode chamber are respectively formed on respective opposing inner surface sides thereof; and a sealing portion provided between the first plate and the second plate, in which the sealing portion includes plural frame bodies disposed at intervals from an inner side to an outer side, and plural sealing members disposed between the plural frame bodies and disposed in a compressed state between the first plate and the second plate. The electrochemical device includes the electrochemical cell.

PRE-TREATED ION EXCHANGE RESIN FOR ALTERNATIVE ENERGY POWER SOURCE HEAT TRANSFER SYSTEMS WITH LOW CONDUCTIVITY COOLANT REQUIREMENTS

Resumen de: CN121100020A

Methods and apparatus for pre-treated ion exchange resins and their use in heat transfer systems, alternative power sources such as fuel cells, battery systems, and assemblies comprising such power sources. The apparatus may include a cooling system and a pretreated ion exchange resin. The pretreated ion exchange resin may include an ion exchange resin treated with a corrosion inhibitor and/or an antioxidant. The cooling system may include a heat transfer fluid. The heat transfer fluid may include water, a glycol-based freezing point depressant, and mixtures thereof. The glycol-based freezing point depressant may include ethylene glycol, propylene glycol, 1, 3-propylene glycol, and mixtures thereof. The cooling system may include an ion exchange unit. The ion exchange unit may include a pretreated ion exchange resin, an untreated ion exchange resin, a basic anion exchange resin, an acidic cation exchange resin, and mixtures thereof.

CASCADE HEAT EXCHANGER AND GAS KNOCKOUT FOR METAL AIR

Resumen de: CN121241467A

A metal-air battery equipped with a heat exchanger having air-side fins directly connected to a back plate and liquid-side fins thermally connected to the back plate. The liquid side fins receive the electrolyte from the overflow port and then direct the electrolyte into the electrolyte chamber. The liquid side cooling fins are composed of adjacent cooling fins which are arranged alternately, a certain angle (theta) is formed between the cooling fins, and gaps are formed between the cooling fins, so that electrolyte can flow on the adjacent cooling fins. The heat exchanger can perform degassing treatment on the electrolyte at the same time, and redundant heat is removed from the electrolyte.

METAL AIR BATTERY TURBINE ANODE DISC DRIVE SYSTEM

Resumen de: WO2024231783A1

This disclosure provides a rotary metal air battery system that rotates without using a rotary motor. A metal anode is rotated by impact of a liquid electrolyte on turbine blades disposed on a radial edge of the metal anode.

Fluid additives for regenerative fuel cells

Resumen de: GB2644072A

A regenerative fuel cell has a first half-cell 51L and a second half-cell 51Rwith a permeable separator 52 therebetween. The first half cell includes a first liquid electrolyte which reacts at a first electrode 54 to produce gas, for example hydrogen gas, while charging whilst gas is consumed during discharge of the cell. The liquid electrolyte contains a solute enabling the liquid to display elastic turbulence. The solute may be a viscoelastic surfactant or a flexible long chain polymer such as hydrolysed polyacrylamide. A flow path, for example including flow quide 76, is configured to compel changes in the direction of flow so as to cause elastic turbulence in the electrolyte flowing into contact with the first electrode. The second electrochemical half-cell includes a second liquid electrolyte which undergoes reaction at a second electrode 55 wherein the reaction does not produce or consume gas. The regenerative fuel cell includes a first storage vessel 60 and a first pump 58 for storage and circulation of the first electrolyte as well as a second storage vessel 61 and second pump 59 for storage and circulation of the second electrolyte.

Gasket for use in an electrochemical cell stack

Resumen de: GB2644099A

A gasket 30 suitable for use in an electrochemical cell stack, the gasket 30 comprises an electrically insulating core 38 having first and second opposing faces 38a 38b, a first metal-containing foil 32 disposed on the first face 38a and a second metal-containing foil 36 disposed on the second face 38b, and wherein the first and second metal-containing foils 32 36 comprise aluminium or copper. A kit of parts comprises an annular insulating core and annular foils. A method of manufacturing an electrochemical cell stack is disclosed as comprising a formation step of a gasket 30.

Additives for electrochemical flow reactors

Resumen de: GB2644071A

A first electrochemical half-cell includes a first liquid containing a dissolved reactive species which reacts electrochemically at a first electrode to form a solid which deposits at the electrode. The liquid further contains a solute, such as a high molecular weight linear polymer or a viscoelastic surfactant, enabling the liquid to display elastic turbulence. A structure, for example a flow guide 56 located adjacent the electrode comprising a spaced array of obstructions 58, defines a flow path carrying the liquid into contact with the electrode which compels changes in the direction of liquid flow causing elastic turbulence. At least one pump 67 propels the liquid along the flow path. A rechargeable battery includes the first half-cell and a second electrochemical half-cell. A metal-air rechargeable battery includes the first half-cell and a second electrochemical half-cell with a separator (52, Figure 12) therebetween wherein the second half-cell comprises a second liquid which undergoes oxygen evolution (OER) at a catalyst within a porous body wherein the second liquid also includes a solute enabling the liquid to display elastic turbulence and the second half-cell also includes a flow path which causes elastic turbulence by compelling changes in the direction of liquid flow.

ELECTROLYTE COMPOSITION FOR ALL-IRON REDOX FLOW BATTERIES

Resumen de: EP4712177A1

The invention provides an electrolyte for use in an all-iron redox flow battery, comprising an aqueous solution of an Fe²⁺ salt; a first cation additive being aluminium Al³⁺; and a second cation additive selected from the group consisting of Na⁺, K⁺, Ca²⁺, Mg²⁺ or NH₄⁺.

RECIRCULATION DEVICE FOR A FUEL CELL

Resumen de: WO2025031655A1

The present invention relates to a recirculation device (2) for a fuel cell (3). The recirculation device (2) has a drive (10), a conveying means (20) and a separation means (30). The drive (10) comprises a drive shaft (11). The conveying means (20) is coupled to the drive shaft (11) in such a manner that the conveying means (20) can be driven by the drive (10). The conveying means (20) is designed to recirculate a medium as recirculated material in the fuel cell (3). The separation means (30) is arranged upstream of the conveying means (20) in the flow direction of the recirculated material. The separation means (30) is coupled to the drive shaft (11) in such a manner that the separation means (30) can be driven by the drive (10). The separation means (30) is designed to separate liquid from the recirculated material.

DEVICE FOR CHECKING THE TIGHTNESS OF ELECTROCHEMICAL CELLS

Resumen de: WO2024230864A1

The invention relates to a device (1) for checking the tightness of electrochemical cells (2), in particular with regard to H2 tightness. The device has a chamber (3) for accommodating and checking at least one electrochemical cell (2). For the purpose of the check, the chamber (3) is subjected to a vacuum. A unit (6) for gas supply is provided, which supplies an electrochemical cell (2) to be checked with compressed air, as a result of which the interior of the electrochemical cell (2) is pressurized. This is made possible particularly advantageously in that the pressure difference between the interior of the cell (2) having the excess pressure and the chamber (3) having the vacuum is particularly high and is additionally varied periodically. As a result, there is a particular incentive for a periodically varying gas transfer between the interior of the cell (2) and the chamber (3) under vacuum, which allows for the tightness to be checked particularly advantageously and meaningfully. The pressure sensor (7) allows for a periodic pressure increase in the chamber (3) to be detected and to be analyzed by means of the control unit (8), and for meaningful information regarding insufficient tightness to be obtained, without interference by non-periodic interfering effects, and made available to the user. The device according to the invention can detect very minor leaks, which for example lead to leakage rates in the range of 10-4 mbar per liter of the volume and per second, and a

REINFORCED ION EXCHANGE MEMBRANES

Resumen de: CN121195365A

The present invention provides a separator for an electrochemical device, comprising: an ion exchange membrane comprising at least one first polymer having an acidic functional group A; and a fabric wherein the fabric comprises fibers, and wherein the surface of the fibers has a basic functional group C, and wherein the fabric supports an ion exchange membrane. The invention also provides a method for manufacturing the separator for the disclosed electrochemical device, a device comprising the separator for the disclosed electrochemical device and the use of the separator for the disclosed electrochemical device in an electrodialysis cell, in a fuel cell, in a PEM electrolysis device or in a redox flow battery.

DEVICE FOR FILTERING AMBIENT AIR

Resumen de: CN121100421A

The invention relates to a device (100) for filtering ambient air, comprising: a reactor (110) which is designed to carry out an electrochemical reaction of a reactant with an oxidizing agent, by means of which at least one liquid (230) can be produced as a product; the filtering system (200) is provided with a first liquid storage device (220); a first connection line (170) is formed between the reactor (110) and the first reservoir (220) through which the generated liquid (230) can flow from the reactor (110) to the first reservoir (220); the filtration system (200) is designed to bring ambient air into contact with the generated liquid (230) in the reservoir (220) so that impurities can be filtered from the ambient air; a second connection line (150) is formed between the filtration system (200) and the reactor (110), through which filtered ambient air of the filtration system (200) can be fed to the reactor (110) as an oxidizing agent for electrochemical reactions.

FUEL CELL DEVICE, METHOD FOR OPERATING A FUEL CELL DEVICE, AND USE OF A NERNST CELL UNIT OF A FUEL CELL SYSTEM

Resumen de: CN121195363A

The invention relates to a fuel cell device (10) having at least one line system (12) for conducting fuel; having at least one reformer (14) connected to the line system (12) for reforming the fuel; and at least one Nernst cell unit (16, 18), in particular a lambda sensor, for detecting a process fluid parameter of a fluid located in the line system (12). According to the invention, the Nernst cell unit (16, 18) is arranged upstream of the reformer (14).

DIAGNOSTIC METHOD AND MEASUREMENT ARRANGEMENT FOR A COMPONENT TO BE EXAMINED

Resumen de: CN121079603A

The invention relates to a method and a measuring device for diagnosing a component to be examined, comprising the following steps: operating the component (10) to be examined in a circuit (11) at a predefined operating point for a predefined first measurement interval (12); during the first measurement interval, a measurement signal and an excitation signal (13) are detected in the circuit as a function of time, the excitation signal being a signal of a passive component (14) in the circuit, which passive component is in a predetermined first excitation state (15) at the beginning of the first measurement interval, and the passive component is in a predetermined second excitation state (15) at the beginning of the first measurement interval. And the measurement signal is formed by superposing an excitation signal of the passive device and a working signal of the component to be inspected.

NICKEL MOLYBDENUM CATALYSTS AND THEIR METHODS OF PREPARATION

Resumen de: CN121443774A

The present invention relates to a method of synthesizing a transition metal catalyst consisting of electrodeposition on a substrate electrode from an electrolyte solution comprising at least one transition metal precursor wherein the electrodeposition is carried out at a deposition current density of 500 to 2000 mA/cm2. The invention also relates to a transition metal catalyst characterized in that it is stable on a base electrode at a current density of at least 400 A/cm2 for at least 30 minutes.

METHOD FOR OPERATING AN ELECTRIC DRIVE SYSTEM OF A MOTOR VEHICLE

Resumen de: WO2024235659A1

The invention relates to a method for operating an electric drive system of a motor vehicle, comprising at least one fuel cell and at least one battery. The invention is characterised in that an operating strategy is determined in real time using a computing unit disposed in the vehicle, wherein the operating strategy is aimed at achieving a constant power specification with low operating points, so that the fuel cell is operated continuously with constant power.

LIQUID COOLING OF CHARGING CABLE IN FUEL-CELL-POWERED EV FAST CHARGER USING STACK COOLANT AND/OR PROCESS WATER

Resumen de: WO2024231107A1

It is the objective of the present invention to provide a fuel cell powered EV fast charger that allows to charge at high current without the risk of overheating the charging infrastructure, such as cables (4), contact (5) and the like. This objective is achieved according to the present invention by a fuel cell powered EV fast charger, comprising: • a) a stack of fuel cells, each fuel cell comprising an anode-side electrical power collector and a cathode-side electrical power collector; • b) a power converting unit that is on its input-side connected to the anode- and cathode-side electrical power collectors and that provide at its output-side a number of power cables (4) for the transfer of fast charging voltages and currents; c) a cooling system that is connected for heat dissipation with the stack of fuel cells, wherein a cooling line of said cooling system is used to cool the power cables (4) and/or the contacts (5) and/or the power-converting unit and/or d) a further cooling system that collects process water generated by the electrochemical reaction in the fuel cells wherein the power cables (4) and/or the contacts (5) and/or the power-converting unit are cooled using this process water.

DEVICE AND METHOD FOR WELDING HALF SHEETS TO FORM A BIPOLAR PLATE

Resumen de: CN120957831A

The invention relates to a device (5) and a method for welding half-sheets (2, 3) to form a bipolar plate (1). The device comprises at least three tool parts, namely a lower tool part (6a) and a multi-part upper tool part (6b), in which half-sheets (2, 3) to be welded together can be inserted between the lower tool part (6a) and the multi-part upper tool part (6b). The multi-part upper tool part (6b) comprises a plurality of individual parts (7; the individual parts (7, 8) of the multi-part upper tool part (6a) can be arranged one after the other and only alternately above the lower tool part (6a), and wherein both at least one first opening (9) for introducing a pressurized gas and at least one second opening (10) for introducing a pressurized gas are formed in each of the individual parts (7, 8) of the multi-part upper tool part (6a). The half-sheets (2, 3) can be pressed against each other by means of a pressurized gas, and a second opening (10, 10 ') for introducing joining energy during the welding process for welding the half-sheets (2, 3), the second opening (10, 10') in the individual part (7, 8) of the multi-part upper tool part (6b) as viewed perpendicular to the plane of the half-sheets (2, 3), and the second opening (10, 10 ') being formed in the individual part (7, 8) of the multi-part upper tool part (6b), as viewed perpendicular to the plane of the half-sheets (2, 3). 10 ') are largely complementary to each other and overlap only in some areas, such that only a

ELECTROCHEMICAL DEVICE, IN PARTICULAR ELECTROLYSIS DEVICE

Resumen de: WO2024230958A1

An electrochemical device (10'), with a cell stack consisting of a plurality of cell stack elements, with a force application unit (13) which exerts a force on the cell stack in order to press the cell stack elements of the cell stack fluid-tightly in sealing regions (17) of the cell stack, wherein the force application unit (13) is designed in such a manner that the force for pressing the cell stack acts on the cell stack and therefore on the sealing regions (17) of the cell stack depending on the operating state of the electrochemical device (10').

MANAGING A FUEL CELL SYSTEM IN A FUEL CELL VEHICLE

Resumen de: WO2024235430A1

A system and method for controlling operation of a fuel cell system of a fuel cell vehicle are provided. The fuel cell system comprises a fuel cell stack comprising an anode side and a cathode side, and a hydrogen storage device for storing hydrogen supplied to the anode side of the fuel cell stack. The method comprises estimating a duration of a stopover of the vehicle when a request to shut down the fuel cell system is received, estimating a hydrogen protection time at least due to a first hydrogen refill comprising supplying the hydrogen to the anode side of the fuel cell stack from the hydrogen storage device, and determining, based at least on the estimated duration of the stopover and the hydrogen protection time, whether to enable or disable one or both the first hydrogen refill operation and at least one subsequent hydrogen refill operation.

FLUID ADDITIVES FOR REGENERATIVE FUEL CELLS

Nº publicación: EP4712174A1 18/03/2026

Solicitante:

SERVICES PETROLIERS SCHLUMBERGER [FR]
SCHLUMBERGER TECHNOLOGY BV [NL]
Services P\u00E9troliers Schlumberger,
Schlumberger Technology B.V

Resumen de: EP4712174A1

A regenerative fuel cell has one half-cell which produces gas while charging and consumes the gas during discharge. The electrolyte liquid circulated through that half-cell contains a flexible long chain polymer or a viscoelastic surfactant. The half-cell is configured to compel the flow of electrolyte liquid to make repeated changes in direction and the flow rate is sufficient that elastic turbulence occurs. This dislodges bubbles of produced gas from the electrodes, maintaining more electrode surface available for reaction and enhancing efficiency. The other half-cell may also be in a state of elastic turbulence enhancing mass transport to and from its electrode surface