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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.

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.

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.

POWER GENERATION CELL

Resumen de: WO2025204417A1

This power generation cell comprises: a membrane electrode structure that is configured by integrating a membrane electrode assembly which has an electrolyte membrane, an anode electrode, and a cathode electrode with a frame member which supports an outer edge of the membrane electrode assembly; and a pair of separators that are disposed respectively so as to face a first surface of the membrane electrode structure and a second surface on the opposite side from the first surface and that form a gas flow path. An abutting portion where the outer edge of the frame member and outer edges of the pair of separators abut on each other is provided with a seal part so as to prevent leakage of a reaction gas. The separator has a bypass suppression part that is on the outer side of a power generation region which is between the gas flow path and the seal part and in which the electrolyte membrane and the electrode overlap and that is formed so as to be textured facing the membrane electrode structure so as to suppress a flow of a reaction gas which bypasses the gas flow path.

POWER GENERATION CELL

Resumen de: WO2025204416A1

According to the present invention, a first separator is disposed along the outer edge part of a membrane electrode structure and has a plurality of first protrusions that protrudes toward the opposite side of a first surface. A second separator is disposed along the outer edge part of the membrane electrode structure and has a plurality of second protrusions that protrudes toward the opposite side of a second surface. The plurality of first protrusions each have an elongated shape that extends along a plurality of first center lines, which are parallel to each other, with a first width that is orthogonal to the plurality of first center lines, and the plurality of second protrusions each have an elongated shape that extends along a plurality of second center lines, which are parallel to each other, with a second width that is orthogonal to the plurality of second center lines. In a plan view viewed from a direction that is perpendicular to the first surface, the first center lines and the second center lines are substantially parallel to each other, and the first width is narrower than the second width.

POWER GENERATION CELL

Resumen de: WO2025204419A1

This power generation cell comprises: a membrane electrode structure that is formed by integrating a membrane electrode assembly having an electrolyte membrane, an anode electrode, and a cathode electrode, with a frame member that supports the outer edge of the membrane electrode assembly; and a pair of separators that are disposed so as to respectively face the first surface of the membrane electrode structure and the second surface on the side thereof opposite from the first surface, and that form a gas flow path. At an abutting section where the outer edge of the frame member abuts the outer edges of the pair of separators, a seal part is provided so as to prevent leakage of a reaction gas. The separator has a flat section that stretches between the gas flow path and the seal part and that, without interruption, abuts the first surface and the second surface of the membrane electrode structure from one end to the other end in the flow direction of the gas flow path on the outside of a power generation region where the electrolyte membrane and the electrodes overlap.

POWER GENERATION CELL

Resumen de: WO2025204418A1

This power generation cell is provided with: a membrane electrode structure which is formed by integrating a membrane electrode assembly and a frame member; and a pair of separators each forming a gas flow path, through which a reaction gas flows, between a first electrode and a second electrode of the membrane electrode assembly. A contact part in which the outer edge part of the frame member of the membrane electrode structure and the pair of separators come into contact with each other is provided with a seal part. The separators each have, between the gas flow path and the seal part, a flow suppression part that is formed with protrusions and recesses toward the membrane electrode structure so as to suppress a flow of a reaction gas bypassing the gas flow path, and a bypass flow path formation part that is provided between the flow suppression part and the seal part and forms a bypass flow path through which the reaction gas flows by bypassing the gas flow path.

FUEL CELL SYSTEM

Resumen de: WO2025206391A1

This fuel cell system includes a converter, a plurality of power generation units, a plurality of current sensors, and a control unit. Each of the power generation units includes a fuel cell. The plurality of power generation units are electrically connected in parallel to the converter. Each of the current sensors detects a current flowing through the power generation unit. The control unit controls the flow rates of a fuel gas, water, and air supplied to the power generation unit according to a current value of the power generation unit.

NANOSHEET-BASED PROTON CONDUCTING NANOCHANNEL MEMBRANES FOR ELECTROCHEMICAL DEVICE APPLICATIONS

Resumen de: WO2025199584A1

The disclosure of the application provides a membrane design encompassing three main considerations; (1) employing 2D nanosheets as proton-permeable building blocks to facilitate through-membrane proton transport; (2) assembling 2D nanosheets to form 2D channels, capable of confining the proton conductor to thereby prevent loss of the proton conductor, or to prevent physical or chemical degradation of the proton conductor under the conditions in which the membrane may be exposed in its application(s); and (3) incorporating proton conductors to occupy the intersheet spaces forming the 2D channels, and/or incorporating proton conductors to form at least part of the inner surfaces of the 2D channels, enabling intersheet proton transport while blocking hydrogen gas molecules, thereby providing membranes with ultrafast proton conducting pathways due to synergistic proton transport, with high retention of the proton conductor achieved through nanoconfinement in 2D channels.

FUEL CELL SYSTEM

Resumen de: WO2025206386A1

A fuel cell system according to the present invention is provided with a plurality of power generation units electrically connected in parallel, a plurality of gas supply lines, a plurality of oxygen supply lines, and a control device. The plurality of gas supply lines supply fuel gas to each of the plurality of power generation units. The plurality of oxygen supply lines supply oxygen-containing gas to each of the plurality of power generation units. The control device calculates a power generation current value for at least one of the plurality of power generation units on the basis of the flow rate of the fuel gas flowing through at least one of the plurality of gas supply lines or the flow rate of the oxygen-containing gas flowing through at least one of the plurality of oxygen supply lines.

WORK MACHINE AND METHOD

Resumen de: WO2025205088A1

In the present invention, a control device starts a stopping process for a set of first fuel cell modules. After the start of the stopping process for the set of first fuel cell modules, the control device starts a stopping process for a set of second fuel cell modules.

ELECTROCHEMICAL CELL, SOLID OXIDE ELECTROLYTIC CELL, CELL STACK, HOT MODULE, AND GAS MANUFACTURING DEVICE

Resumen de: WO2025204696A1

An electrochemical cell (electrolytic cell) has a solid electrolyte layer, an air electrode layered on the front surface side of the solid electrolyte layer, and a fuel electrode layered on the rear surface side of the solid electrolyte layer. The fuel electrode has a functional layer containing a Ni alloy and a conductive solid oxide, and the average particle diameter of the Ni alloy contained in the functional layer is 0.77 μm-1.00 μm inclusive.

WORK MACHINE AND METHOD

Resumen de: WO2025205084A1

In the present invention, a control device causes a power storage device to discharge power stored therein when a stop instruction for a work machine is received. The control device performs stop processing for a fuel cell module after the discharge of the power storage device, and causes the power storage device to be charged with generated power generated as a result of the stop processing.

BIAXIALLY-ORIENTED POLYOLEFIN FILM

Resumen de: WO2025205289A1

This biaxially-oriented polyolefin film is characterized in that: the proportion S of the melting heat amount in the range of 175-190°C to the melting heat amount in the range of 30-190°C obtained by differential scanning calorimetry is 10-70%; the biaxially-oriented polyolefin film has two layers having different contained amounts of a 4-methyl-1-pentene polymer; when, of the two layers, a layer having a smaller contained amount of the 4-methyl-1-pentene polymer is referred to as a layer A and the other layer having a greater contained amount thereof is referred to as a layer B, the layer B is positioned on at least one surface of the film; and the layer B contains the 4-methyl-1-pentene polymer as the main component. Provided is a biaxially-oriented polyolefin film that can be suitably used even in a high temperature environment in which conventional biaxially-oriented polyolefin films cannot be used as a release film or a process film.

SHEET-LIKE TITANIUM POROUS BODY

Resumen de: WO2025204195A1

This sheet-like titanium porous body has a contact resistance of no greater than1.4 mΩ/cm2. At least on one surface of the sheet-like titanium porous body, the average pore surface area is 5 μm2 to 20 μm2, the standard deviation of the pore surface area is no greater than 45 μm2, and the number of pores is at least 13.6 or more per 1000 μm2. Optionally, the contact resistance of the sheet-like titanium porous body is no greater than1.0 mΩ/cm2.

CONDUCTIVE POROUS BASE MATERIAL, GAS DIFFUSION ELECTRODE BASE MATERIAL, ELECTROCHEMICAL DEVICE, AND VEHICLE

Resumen de: WO2025205748A1

The present invention addresses the problem of providing a conductive porous base material having high water repellency without containing fluorine.　The present invention is a conductive porous base material containing carbon fibers, wherein a resin containing nanocarbon aggregates is supported on the carbon fibers, the sliding angle is 2° to 60° inclusive, and the mass ratio F/C of the fluorine content to the carbon content is 0.01 or less.

MARINE THERMAL AND ELECTRICAL BATTERY

Resumen de: WO2025207360A1

Embodiments disclosed herein comprise a wave energy converter (WEC) that includes a buoyant chamber with a tube depending from the buoyant chamber. In an embodiment, a battery is coupled to the WEC. In an embodiment, the battery includes a first tank for storing an oxidizing gas and a precursor fluid, and a second tank for storing a fuel. In an embodiment the battery further includes a fuel cell fluidically coupled to the first tank and the second tank, and a reaction pipe fluidically coupled to the first tank and the second tank.

FUEL CELL STACK

Resumen de: WO2025204372A1

Problem To provide a fuel cell stack that can facilitate the connection of piping without causing an increase in size. Solution A fuel cell stack 1 has a cooling medium inlet communication hole 32, a cooling medium outlet communication hole 35, a first reaction gas inlet communication hole 31, a second reaction gas inlet communication hole 34, a first reaction gas outlet communication hole 36, and a second reaction gas outlet communication hole 33 that pass through each of a first end plate 3 and a power generation cell 2 in a first direction. On one end side of the power generation cell in a second direction orthogonal to the first direction, the first reaction gas inlet communication hole, the cooling medium inlet communication hole, and the second reaction gas outlet communication hole are arranged in a staggered manner in the aforementioned order in a third direction orthogonal to the first direction and the second direction. On the other end side of the power generation cell in the second direction, the second reaction gas inlet communication hole, the cooling medium outlet communication hole, and the first reaction gas outlet communication hole are arranged in a staggered manner in the aforementioned order in the third direction.

FUEL CELL STACK

Resumen de: WO2025204371A1

A fuel cell stack 1 that can discharge air from within a cooling medium flow passage without leading to an increase in size, and in which power generation cells 2 each having an electrolyte membrane/electrode structure 20 and a set of separators 21, 22 respectively positioned on both sides of the electrolyte membrane/electrode structure are layered in a first direction extending in the horizontal direction, said fuel cell stack being characterized in that cooling medium flow passages 58 are formed between the separators of each set, a cooling medium inlet communication hole 32 and a cooling medium outlet communication hole 35 that penetrate through the power generation cells in the first direction and are connected to the cooling medium flow passages are formed, and an upper end section of the cooling medium outlet communication hole extends farther upward than upper end sections of the cooling medium flow passages.

ELECTRIC WORK MACHINE

Resumen de: WO2025204717A1

Provided is an electric work machine that is characterized by comprising: a fuel cell 1; a secondary cell 5; a driving motor 2 driven by electric power supplied from the fuel cell 1 or the secondary cell 5; an electric fan 16 for assisting in the warming-up of the fuel cell 1; and a controller 9 for controlling the electric fan 16, wherein the controller 9 drives the electric fan 16 such that surplus power generated by the fuel cell 1 is consumed when warming up the fuel cell 1 during startup. This configuration makes it is possible to provide an electric work machine capable of consuming surplus power even when surplus power during warm-up of the fuel cell cannot be charged to the secondary cell.

GAS DIFFUSION ELECTRODE

Resumen de: WO2025205124A1

A gas diffusion electrode according to one embodiment of the present invention has a microporous layer, containing carbonaceous fine particles and a fluorine-based water-repellent resin, on at least one surface of a conductive porous substrate. In the gas diffusion electrode, the ratio (surface layer F/C) of elemental fluorine to elemental carbon detected, at 1,000 times magnification and an acceleration voltage of 2.0 kV by scanning electron microscope energy dispersive X-ray spectroscopy (SEM-EDX), on the surface on the side of the microporous layer with which the conductive porous substrate is not in contact is 0.35 or more and 0.60 or less.

FUEL CELL CONTROL DEVICE AND FUEL CELL CONTROL METHOD

Nº publicación: WO2025203927A1 02/10/2025

Solicitante:

KK TOYOTA CHUO KENKYUSHO [JP]
DENSO CORP [JP]
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