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燃料電池システム

Resumen de: US2025300206A1

Fuel cell system includes: fuel cell stack configured to generate power by anode/cathode gas in anode/cathode flow path: anode/cathode supply flow path supplying anode/cathode gas to anode/cathode flow path; anode/cathode discharge flow path discharging anode/cathode off-gas from anode/cathode flow path; combining portion combining anode/cathode off-gas flowing through anode/cathode discharge flow path; discharge pipe guiding combined gas combined in combining portion to outside; anode discharge valve configured to control flow of anode off-gas toward combining portion; and control unit configured to control opening and closing of anode discharge valve. Control unit: acquires hydrogen concentration of combined gas; and controls opening and closing of anode discharge valve to repeat opening/closing operation of opening for opening time based on hydrogen concentration and closing in case where power generation amount of fuel cell stack is equal to or less than power generation threshold.

MEMBRANES FOR USE IN ELECTROLYZERS AND PROCESSES FOR MAKING THE SAME

Resumen de: WO2025207955A1

The present disclosure provides composite ion exchange membranes and methods of making the same. The composite ion exchange membranes of the present disclosure generally include a first and second coating layer comprising an ionomer and a catalyst coated on opposite sides of a reinforcing polymer sheet, and a third and fourth coating layer comprising an ionomer coated on the first and second coating layers. The first and second coating layers may be coated on the reinforcing polymer sheet via doctor blade casting or dip coating techniques. The catalyst may be incorporated within the first and second coating layers of the composite ion exchange membrane using in situ or ex situ techniques.

METHOD FOR MANUFACTURING METAL SEPARATOR AND METAL SEPARATOR MANUFACTURED THEREBY

Resumen de: WO2025206545A1

The present application relates to a method for manufacturing a metal separator and a metal separator manufactured thereby. According to a method for manufacturing a metal separator and a metal separator manufactured thereby of the present application, a process time can be shortened, and electrical conductivity and corrosion resistance can be improved at the same time.

NITRATE REDUCTION TO AMMONIA VIA COUPLING ELECTROFILTRATION WITH A COOPERATIVE NITRITE-ENRICHING COMPONENT

Resumen de: WO2025208164A1

A functionalized metal/carbon nanotube-based electrified nanoporous membrane with a cooperative nitrite-enriching component to achieve energy-efficient ammonia production from low-concentration nitrate. The use of flow-through electrofiltration reduces energy consumption and treatment time. Integrating an ionophore as a cooperative component into the conductive filtration membrane enriches nitrite within the catalyst microenvironment, enabling conversion of unreacted NO2- to NH3 to enhance overall selectivity without directly modifying the catalytic active sites.

CARBON FIBER-RESIN COMPOSITE SHEET

Resumen de: WO2025205240A1

As shown in fig. 1, this carbon fiber-resin composite sheet 10 has thermoplastic resin 12 and carbon fibers 14 dispersed in the thermoplastic resin 12. In at least one surface of the carbon fiber-resin composite sheet 10, a cross section 14a of the carbon fibers 14 is exposed on the surface of the carbon fiber-resin composite sheet 10 so as to be flush with the surface of the carbon fiber-resin composite sheet 10.

FUEL CELL SYSTEM

Resumen de: WO2025206393A1

This fuel cell system includes a plurality of power generation units and a control unit. The power generation unit includes a fuel cell that generates electric power using fuel gas and air. The fuel gas is supplied from a first supply system to the fuel cell. The air is supplied from a second supply system to the fuel cell. When the difference between the voltages of each of a plurality of power generation units exceeds a difference threshold value, the control unit changes verification of the state of at least one of the first supply system and the second supply system to the power generation unit that has the maximum voltage and a power generation unit that is different from the aforementioned power generation unit.

FUEL CELL SYSTEM

Resumen de: WO2025206389A1

In the present invention, a fuel cell system includes a plurality of power generation units, a plurality of oxygen supply units that supply an -containing gas to each of the plurality of power generation units, a discharge unit, and a control device. Exhaust paths for the exhaust gas from each of the plurality of power generation units collectively constitute the discharge unit. When some of the plurality of power generation units execute an operation stop process, the control device performs control so that oxygen-containing gas is continuously supplied to some of the power generation units by some of the plurality of oxygen supply units, and performs control so that the oxygen-containing gases supplied to some of the power generation units will differ in terms of flow rate between during execution of the operation stop process of some of the power generation units and following the conclusion of the operation stop process of some of the power generation units.

ELECTROCHEMICAL CELL, SOLID OXIDE FUEL CELL, SOLID OXIDE ELECTROLYSIS CELL, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL CELL

Resumen de: WO2025203648A1

The present invention comprises: a cell main body part in which a first electrode layer, an electrolyte layer, and a second electrode layer are stacked in this order; and a metal support body which supports the cell main body part. The metal support body comprises a support part which comprises a support surface that supports the first electrode layer-side main surface of the cell main body part, and an opposite surface on the reverse side of the support surface, and which can communicate a gas between the support surface and the opposite surface. An adhesive layer that is bonded to the support surface is disposed in a facing region of the support surface, the facing region facing the peripheral edge part of the first electrode layer. The region of the first electrode layer positioned inside the peripheral edge part is bonded to the support surface, and the peripheral edge part of the first electrode layer is bonded to the adhesive layer.

ELECTROCHEMICAL CELL, SOLID OXIDE FUEL CELL, SOLID OXIDE ELECTROLYSIS CELL, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL CELL

Resumen de: WO2025203647A1

The present invention comprises: a cell main body part in which a first electrode layer, an electrolyte layer, and a second electrode layer are stacked in this order; and a metal support body which supports the cell main body part. The metal support body comprises: a support part which comprises a support surface that supports one main surface of the cell main body part, and an opposite surface on the reverse side of the support surface, and which can communicate a gas between the support surface and the opposite surface; and a frame part which is disposed so as to surround the outer periphery of the support part. The thickness of the support part is formed to be thinner than the thickness of the frame part.

FUEL CELL STACK

Resumen de: WO2025204406A1

This fuel cell stack is provided with: a pair of first end units respectively disposed adjacent to one end surface and the other end surface of a cell laminate; a pair of second end units disposed on the outside of the pair of first end units so as to face the pair of first end units; a case having one end and the other end respectively fixed to the pair of second end units, and forming a housing space for housing the cell laminate; and elastic members interposed between the pair of first end units and the corresponding pair of second end units disposed opposite thereto, and having a sealing function in which the amount of contraction changes with relative movement of the pair of first end units and the cell laminate relative to the case in the laminate direction.

FUEL CELL STACK

Resumen de: WO2025204407A1

This fuel cell stack comprises: a cell laminate constituted by laminating, in a predetermined direction, a plurality of power generation cells each having a membrane electrode structure including an electrolyte membrane and an electrode, and a separator; a housing surrounding the cell laminate; and a restriction member which is disposed in a gap between an inner wall surface of the housing and an outer surface of the cell laminate, the surfaces facing each other, and limits movement of the cell laminate in a direction orthogonal to the predetermined direction. The separator has a pair of plates that are joined to each other and form a flow path through which a reaction gas flows, and a flow path through which a cooling medium flows. The pair of plates have, on an outer edge part that is within a predetermined range from an outer edge facing the restriction member, rib parts that protrude in predetermined directions and away from each other. The rib parts extend in a shape of recesses and protrusions along the outer edge when viewed from the laminating direction of the cell laminate.

FUEL CELL APPARATUS

Resumen de: WO2025206388A1

This fuel cell apparatus comprises: a power generation unit including a plurality of fuel cells; and a control device. The control device starts power generation of the plurality of fuel cells when a fuel cell at the highest temperature among the plurality of fuel cells reaches a prescribed temperature set in advance.

GAS DIFFUSION MEMBER

Resumen de: WO2025203428A1

Provided is a rollable gas diffusion member. This gas diffusion member is made of a flexible material and is disposed between a separator and a catalyst layer in a fuel cell. The gas diffusion member comprises: a gas diffusion part that comprises a plurality of first grooves which are formed in a first direction and which serve as gas flow paths in a surface on the separator side, and a first rib which is formed between adjacent first grooves; and an introduction part that connects the gas diffusion part and a manifold for supplying gas to be introduced into the gas diffusion part. The introduction part comprises: a plurality of second grooves having a second direction different from the first direction in the first grooves; a second rib formed between adjacent second grooves; and a third groove having the same direction as the first direction.

STABILIZED PLATINUM FUEL CELL CATALYST AND PREPARATION METHOD THEREOF

Resumen de: WO2025207434A1

The disclosure describes a method of stabilizing a carbon supported noble metal catalyst by selective metal oxide deposition on the carbon support of the catalyst by a vapor deposition process. The method includes the flowing steps: a) Providing a carbon supported noble metal catalyst, b) Forming a blocking layer over an exposed surface of the noble metal on the catalyst, c) Exposing the catalyst to a gas containing metal organic compounds to absorb the compounds selectively to the carbon support, d) Exposing the catalyst to an oxidant to form a metal oxide on the catalyst carbon support, e) Repeating steps c) and d) sequentially for one to ten of cycles, preferably one to five cycles, f) Removing the blocking layer from the catalyst to re-expose the noble metal catalyst surface.

FUEL CELL SYSTEM

Resumen de: WO2025204390A1

Provided is a fuel cell system configured to be capable of, in a case in which there is no external power source, starting a fuel cell even if the ambient temperature is low.　A fuel cell system 1 comprises: a fuel cell 8 which is for generating power by reacting hydrogen and oxygen and which is capable of supplying power to a load 30; a hydrogen storage alloy tank 6 which is for storing hydrogen and which is capable of supplying hydrogen to the fuel cell 8; a heater 7 for warming the hydrogen storage alloy tank 6; a rechargeable battery 5 capable of supplying power to the heater 7; and a control circuit 4. The control circuit 4 executes first control processing for supplying power from the rechargeable battery 5 to the heater 7 if the hydrogen storage alloy tank 6 does not satisfy a prescribed condition of being capable of supplying hydrogen to the fuel cell 8. Accordingly, even in a case in which there is no external power source, the hydrogen storage alloy tank 6 is warmed by the heater 7 and hydrogen is supplied to the fuel cell 8, and the fuel cell 8 can be started.

FUEL CELL STACK

Resumen de: WO2025204405A1

This fuel cell stack comprises a cell stack, a housing surrounding the cell stack, and a plurality of guide members that are supported by the housing and extend in a prescribed direction so that a plurality of recesses provided to the outer edge part of a separator are engaged. The separator has a pair of first opposing sides that face each other and a pair of second opposing sides that face each other. The plurality of recesses include: a target corner part that is one of a pair of corner parts where the pair of first opposing sides and the pair of second opposing sides intersect; and a slit-shaped first recess part and a slit-shaped second recess part that extend toward the central part of the separator from the substantially central part of the pair of sides that does not have the target corner part at an end section thereof, among the pair of first opposing sides and the pair of second opposing sides.

ELECTROCHEMICAL CELL, SOLID OXIDE ELECTROLYSIS CELL, CELL STACK, HOT MODULE, AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2025205637A1

According to the present invention, an electrolysis cell 21 that serves as an electrochemical cell comprises: a solid electrolyte layer 211; a fuel electrode layer 213 which is superposed on the rear surface 211A side of the solid electrolyte layer 211 and contains Ni and Fe; and an air electrode layer 212 which is superposed on the upper surface 211B side of the solid electrolyte layer 211. The fuel electrode layer 213 is composed of a first layer 213F and a second layer 213S. The first layer 213F and the second layer 213S are constituted in the order of the first layer 213F and the second layer 213S from the side close to the rear surface 211A of the solid electrolyte layer 211. The concentration of Fe contained in the first layer 213F is 0.10 wt% or more and 0.80 wt% or less, and the concentration of Fe contained in the second layer 213S is less than 0.10 wt%.

METHOD FOR PRODUCING POROUS SEPARATOR FOR ALKALINE WATER ELECTROLYSIS, POROUS SEPARATOR FOR ALKALINE WATER ELECTROLYSIS, METHOD FOR PRODUCING POROUS MEMBRANE, AND POROUS MEMBRANE

Resumen de: WO2025204506A1

Provided are: a method for producing a porous separator for alkaline water electrolysis, said method using a dope solution to form a porous membrane by wet phase separation, wherein the dope solution is obtained by dissolving an organic polymer in a solvent which contains at least one of compounds (1)-(7); and a porous separator for alkaline water electrolysis which is obtained by this production method. Also provided are: a method for producing a porous membrane, said method using a dope solution to form a porous membrane by wet phase separation, wherein the dope solution is obtained by dissolving an organic polymer in a solvent which contains at least one of compounds (1), (5), and (6); and a porous membrane which is obtained by this production method. In the compound (1), R represents an alkyl group.

FUEL CELL AND MOVING BODY PROVIDED WITH FUEL CELL

Resumen de: WO2025203157A1

The present invention provides a fuel cell in which a flat separator is used on one side and a separator with flow channels is used on the other side to improve power generation efficiency by creating parallel flow channels of gas and cooling water in a power generation area, while also considering the arrangement of manifolds for gas and cooling water. A fuel cell in one embodiment of the present disclosure has: a flat separator in which gas manifolds arranged side-by-side along a first direction and cooling water manifolds arranged along a second direction are formed; a separator with flow channels, disposed opposite the flat separator; and a membrane electrode assembly disposed between the flat separators and the separators with flow channels, wherein, out of an anode gas and a cathode gas, one gas is circulated between the flat separator and the membrane electrode assembly while the other gas is introduced between the membrane electrode assembly and the separator with flow channels via a through hole, and the cooling water, the anode gas, and the cathode gas are each circulated along the second direction in an area overlapping a power generation area.

POROUS CARBON BODY FOR FUEL CELL CATALYST SUPPORT

Resumen de: WO2025206744A1

A porous carbon body according to one disclosure is a porous carbon body for a fuel cell catalyst support to support a catalyst material of a fuel cell. Specifically, the porous carbon body contains 0.50 to 5.00 at% of nitrogen and has a zeta potential of at least 0 mV.

FUEL CELL SYSTEM

Resumen de: WO2025204389A1

Provided is a fuel cell system that suppresses an increase in the power amount of an external power supply for starting a fuel cell.　A fuel cell system 1 comprises: a fuel cell 8 which generates power by reacting hydrogen and oxygen, and can supply electric power to an electric load at the time of power reduction or loss of the external power supply; a hydrogen storage alloy tank 6 which stores hydrogen and can supply hydrogen to the fuel cell; a heater 7 which heats the hydrogen storage alloy tank 6; a storage battery 5 which can be charged by a system power supply 20 and can supply power to a load 30; and a control circuit 4. The control circuit 4 executes a first control process for supplying power from the storage battery 5 to the heater 7. In the fuel cell system 1, since the battery 5 can supply power to the heater 7, the hydrogen storage alloy tank 6 is not heated by the heater 7 during waiting in a normal state, but can be heated by supplying power from the storage battery 5 to the heater 7 after a power outage.

ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL DEVICE, MODULE, AND MODULE STORAGE DEVICE

Resumen de: WO2025206301A1

This electrochemical cell comprises a metal plate, a first electrode positioned on the metal plate, and a solid electrolyte layer positioned on the metal plate and the first electrode. The first electrode has a first surface facing the metal plate, a second surface positioned on the opposite side to the first surface, and a third surface connecting the first surface and the second surface. The solid electrolyte layer has a first portion located outside the contour of the first electrode in a plan view, a second portion located on the second surface, and a third portion located between the first portion and the second portion. The average thickness of the first portion is smaller than the average thickness of the second portion.

HIGHLY REINFORCED IONOMER MEMBRANES FOR HIGH SELECTIVITY AND HIGH STRENGTH

Resumen de: EP4625561A2

Embodiments are directed to composite membranes having: increased volume of the microporous polymer structure relative to the total volume of the PEM; decreased permeance and thus increased selectivity; and lower ionomer content. An increased amount of polymers of the microporous polymer structure is mixed with a low equivalent weight ionomer (e.g., < 460 cc/mole eq) to obtain a composite material having at least two distinct materials. Various embodiments provide a composite membrane comprising a microporous polymer structure that occupies from 13 vol% to 65 vol% of a total volume of the composite membrane, and an ionomer impregnated in the microporous polymer structure. The acid content of the composite membrane is 1.2 meq/cc to 3.5 meq/cc, and/or the thickness of the composite membrane is less than 17 microns. The selectivity of the composite membrane is greater than 0.05 MPa/mV, based on proton conductance and hydrogen permeance.

水素を含有する天然ガス供給物の液化

Resumen de: MX2025002242A

Liquefaction systems and methods are disclosed that are adapted to process a natural gas stream having a substantial concentration of hydrogen and where the concentration of hydrogen may vary in the natural gas stream. In some implementations, an expanded liquefied natural gas stream may be separated into a hydrogen enriched endflash stream and a hydrogen depleted LNG stream, and a second gaseous hydrogen depleted stream may be produced from the hydrogen enriched endflash stream and/ the hydrogen depleted LNG stream. In other implementations, the pressure of the endflash compressor may be controlled for the purpose of maintaining a hydrogen concentration in a fuel stream (often the endflash stream) within a desired range. Some implementations may include pre- or post- liquefaction purification using, for example, membranes, adsorption, partial condensation, distillation, stripping, and electrochemical membranes.

FORMIC ACID ENERGY STORAGE SYSTEM AND RELATIVE METHOD

Nº publicación: EP4623472A1 01/10/2025

Solicitante:

NUOVO PIGNONE TECNOLOGIE SRL [IT]
NUOVO PIGNONE TECNOLOGIE - S.R.L

Resumen de: AU2023384328A1

Energy storage system (1000) for producing, storing and consuming energy comprising an electrochemical reduction CO2 cell unit (110) configured to receive electrical energy, in particular from a renewable energy source, and to perform electrochemical reduction process to produce formic acid (CH2O2), a formic acid storage unit configured to store formic acid (CH2O2) in liquid state received from electrochemical reduction CO2 cell unit (110), a formic acid fuel cell unit (130) configured to perform electrochemical oxidation process producing electrical energy from formic acid (CH2O2) received from the formic acid storage unit (120) and a control unit (180) configured to control supply of formic acid (CH2O2) to and from the formic acid storage unit (120). The energy storage system (1000) is also configured to perform a closed-loop recirculation of carbon dioxide (CO2) from the formic acid storage unit (130) to the electrochemical reduction CO2 cell unit (110).