Resumen de: US20260074257A1
A system may comprise: a liquid-metal electrode; an electrolyte including electrolyte cations to exit the electrolyte and to transit through the liquid-metal electrode to participate in a reduction reaction of a first redox half-reaction at an interface between a first substance and the liquid-metal electrode; a counter-electrode, wherein electrolyte anions are to participate in an oxidation reaction of a second redox half-reaction at or near the counter-electrode within the electrolyte; and circuitry to convert between electrical energy and chemical bond energy through an electro-chemical redox reaction of the pair of redox half-reactions. A method may comprise: providing a liquid-metal electrode, an electrolyte including electrolyte cations and electrolyte anions, a counter-electrode, and circuitry electrically coupled to the liquid-metal electrode and to the counter-electrode; permitting the liquid-metal electrode to interact with a first substance; and arranging the electrolyte to be in contact with the counter-electrode.
Resumen de: US20260074239A1
The present embodiment is a fuel cell including at least a membrane electrode assembly including an electrolyte membrane, an anode catalyst layer disposed on one surface of the electrolyte membrane, and a cathode catalyst layer disposed on the other surface of the electrolyte membrane, wherein the cathode catalyst layer includes at least an electrochemical oxygen reduction electrode catalyst including a catalyst metal having oxygen reduction activity and a modifier that modifies the catalyst metal, wherein the modifier is at least one selected from a nitrogen-containing cyclic organic compound and a polymer thereof, and includes a decomposition inhibitor that suppresses decomposition of the modifier in at least one selected from an electrolyte membrane, an anode catalyst layer, and a cathode catalyst layer.
Resumen de: US20260074248A1
This disclosure relates to a fuel cell system for vehicles that includes a controller that manages, among other things, the stack current and purge valve or drain valve operations based on a cell voltage monitoring energy indicator. When the energy indicator exceeds a predefined threshold, the controller reduces the stack current or adjusts the purge valve or drain valve—either opening it to mitigate flooding or closing it to prevent drying out.
Resumen de: US20260074249A1
A multi-module fuel cell system includes a plurality of fuel cell stacks, at least one battery connected to the plurality of fuel cell stacks, and a controller configured to determine whether the plurality of fuel cell stacks and the at least one battery are allowed to provide outputs in response to input of a required output, and controls either the plurality of fuel cell stacks or the at least one battery, selectively, to provide an output to satisfy the required output based on a result of determination as to whether outputs are allowed to be provided, and a method of controlling the same.
Resumen de: US20260074241A1
A fuel cell including an electrode assembly between a pair of separators includes a gasket disposed on a surface of one of the separators on a side opposite to a surface on a side on which the electrode assembly is disposed, and a protruding member disposed on a surface of one of the separators on a side opposite to a surface on a side on which the electrode assembly is disposed. The protruding member is disposed on an outer peripheral edge side of the separator from the gasket. The height of the protruding member is smaller than the height of the gasket.
Resumen de: WO2026053498A1
A fuel cell in which a plurality of fuel cell units are stacked and a porous body constituting a flow path for a cooling medium is arranged between the adjacent fuel cell units, wherein the porous body includes a plurality of through holes penetrating in the flowing direction of the cooling medium, and the plurality of through holes are arranged at intervals along the longitudinal direction of the porous body in a direction orthogonal to the flowing direction of the cooling medium.
Resumen de: WO2026054208A1
An exhaust gas distribution device, provided in the present invention, comprises: a lower end distribution part (100) comprising a plurality of guide plates (110) which are radially arranged so as to uniformly distribute exhaust gas supplied from the lower end portion and guide the exhaust gas in a specific direction; an upper end diffuser part (200) positioned on the lower end distribution part (100) and comprising a link rod (230) which is connected to the lower end distribution part (100), a diffuser body part (220), and guide vanes (210) which are radially arranged on the bottom surface of the diffuser body part (220); and a housing part (300) having the lower end distribution part (100) and the upper end diffuser part (200) seated therein.
Resumen de: US20260074254A1
A proton exchange membrane for an energy conversion device, a hydrogen fuel cell stack for a vehicle, and a method of forming a proton exchange membrane. The proton exchange membrane includes a first layer of a perfluorosulfonic acid ionomer. In addition, the perfluorosulfonic acid ionomer includes a first methoxy-nonafluorobutane coated additive. The hydrogen fuel cell stack includes one or more membrane electrode assemblies, each including a proton exchange membrane.
Resumen de: US20260074258A1
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.
Resumen de: US20260074256A1
A flow cell battery that includes at least one electrochemical cell. The electrochemical cell includes: an ion exchange membrane; a 1 mm to 4 mm thick anode; an anode current collector; a first bipolar plate disposed between the anode and the anode current collector; a first flow frame that defines first flow channels; a first tank including an anolyte that includes V4+ and V5+; a first pump to flow the anolyte from the first tank into the first flow channels; a 1 mm to 4 mm thick cathode; a cathode current collector; a second bipolar plate disposed between the cathode and the cathode current collector; a second flow frame that defines second flow channels; a second tank including a catholyte that includes V2+ and V3+; and a second pump to flow the catholyte from the second tank into the second flow channels.
Resumen de: US20260074255A1
Provided is a method for manufacturing a multiscale structured metal support for low-temperature thin-film solid oxide fuel cells and to a metal support manufactured thereby. The method includes (a) filling the pores on the surface of a porous metal support with a first metal powder having a relatively large particle size; (b) filling the pores on the surface of the porous metal support with a second metal powder having a relatively small particle size and pressing the surface; (c) heat-treating the porous metal support, whose surface pores are filled with the first and second metal powders, in a reducing atmosphere; and (d) filling the pores on the surface of the heat-treated porous metal support with a ceramic powder and heat-treating the resulting support in a reducing atmosphere. Through these processes, a multiscale structured metal support suitable for application in low-temperature thin-film solid oxide fuel cells can be fabricated.
Resumen de: WO2026054042A1
An electrolyte membrane 10A includes: a porous membrane 1 formed of a material containing a hydrocarbon-based resin; and a hydrocarbon-based electrolyte polymer filled in pores 2 of the porous membrane 1. The hydrocarbon-based electrolyte polymer has a structure represented by the following formula (1). Formula (1): In formula (1), A1 and A2 represent structural units represented by formula (a1) and formula (a2), L1 and L2 each independently represent a single bond or the like, n represents an integer of 10-100, and * represents a dangling bond. Formula (2): In formula (a1), IExG represents an ion exchange group, L3 represents a single bond or the like, x represents an integer of 2-10, and * represents a dangling bond. Formula (3): In formula (a2), Ar represents an arylene group not having an ion exchange group, L4 represents a single bond or the like, y represents an integer of 3-20, and * represents a dangling bond.
Resumen de: WO2026053847A1
Provided is a nitrogen gas generation apparatus which makes it possible to use a combustion catalyst to stably, continuously, and reliably generate high-purity nitrogen gas. This nitrogen gas generation apparatus comprises: an oxygen delivery amount restriction means that takes in air or gas which contains nitrogen and oxygen, and that delivers the air or the gas while restricting the delivery amount of oxygen contained in the air or the gas; and a catalytic combustion means that reacts the delivered air or gas with fuel gas which contains intake hydrogen on a combustion catalyst to convert the air or the gas into nitrogen-enriched gas, which has an increased nitrogen concentration. The oxygen delivery amount restriction means makes the oxygen concentration of the air or the gas equal to or smaller than the maximum oxygen concentration that is determined on the basis of a set or desired upper temperature limit for the combustion catalyst or the catalytic combustion reaction, and/or makes the flow rate of the air or the gas equal to or smaller than the maximum flow rate that is determined on the basis of a set or desired upper temperature limit for the combustion catalyst or the catalytic combustion reaction.
Resumen de: WO2026053859A1
The present disclosure relates to a method for producing an electrode ink for an enzyme battery, the electrode ink containing an enzyme, a water-insoluble mediator, and a porous conductive substance, and the method comprising: a step 1 for preparing a first mixture containing a liquid in which the mediator is dissolved in a nonaqueous solvent, and the porous conductive substance; a step 2 for implementing a dispersion treatment on the first mixture at 60°C or lower under reduced pressure to volatilize and remove the nonaqueous solvent from the first mixture and obtain a second mixture; and a step 3 for adding and mixing the enzyme, an aqueous medium, and a binder with the second mixture to obtain the electrode ink.
Resumen de: US20260074253A1
A membrane-electrode assembly (MEA) for a polymer electrolyte membrane fuel cell is prepared by applying an electrode slurry onto a release sheet to form an electrode layer, providing an electrolyte membrane comprising a substrate doped with phosphoric acid, and transferring the electrode layer to create a catalyst-coated membrane (CCM). The electrode slurry contains a catalyst, ionomer(s), and a solvent, with a solid content of about 10-15% by weight. The release sheet, comprising polyimide and about 30-80 μm thick, allows uniform coating and transfer. The resulting electrolyte membrane, about 40-50 μm thick, is doped with about 5-9 mg/cm2 of phosphoric acid and includes a hydrocarbon-based polymer substrate. The final MEA exhibits a high-frequency resistance of about 100 mΩ·cm2 or less.
Resumen de: US20260074252A1
A fuel cell system includes a molten carbonate fuel cell module including an anode section configured to output an anode exhaust stream including carbon dioxide and hydrogen and a cathode section configured to receive a cathode input stream. The fuel cell system further includes a drying system configured to receive and remove water from the anode exhaust stream and to output a dried anode exhaust stream comprising less than 0.1 percent water and a carbon dioxide solvent extraction system configured to receive the dried anode exhaust stream, expose the dried anode exhaust stream to a physical solvent to absorb carbon dioxide, output a carbon dioxide product stream comprising at least 99 percent carbon dioxide, and output a sweet gas stream.
Resumen de: US20260074250A1
A corrosion-resistant system, a carbon-free power generation system, and a fuel cell system are provided. The corrosion-resistant system includes an ammonia supply unit; a first conduit connected to the ammonia supply unit; an ammonia decomposition unit comprising a chamber connected to the first conduit; and a second conduit connected to the chamber, wherein an operating temperature of the chamber is 410° C. or lower, the first conduit and the chamber comprise at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel and a nickel-based alloy, and the second conduit comprises a nickel-based alloy (NT) satisfying Equation 1: T≤15 μm.
Resumen de: US20260074247A1
A fuel cell system for a vehicle includes an anode manifold, a drain valve, and a controller. The controller adjusts the duration for which the drain valve remains open or closed based on changes in the anode pressure slope associated with the valve's operation. The system, for example, increases the duration that the drain valve remains closed in response to a change in the anode pressure slope following an opening command and adjusts the duration that the valve remains open based on changes in the slope resulting from a closing command.
Resumen de: US20260074246A1
A fuel cell module includes a fuel cell stack made up of a plurality of stacked fuel-cell cells, a fuel gas outlet manifold that extends inside the fuel cell stack in a stacking direction, and through which a fuel gas that has passed through each of the fuel-cell cells flows, an oxidant gas outlet manifold that extends inside the fuel cell stack in the stacking direction, and through which an oxidant gas that has passed through each of the fuel-cell cells flows, a discharge flow passage that discharges the oxidant gas from the oxidant gas outlet manifold, a pressure regulating valve provided in the discharge flow passage, the pressure regulating valve being configured to lower a pressure in the discharge flow passage downstream from the pressure regulating valve than a pressure in the oxidant gas outlet manifold, and a water drain flow passage.
Resumen de: WO2026054675A1
A method for producing a platinum group metal-based catalyst on a carbon support includes the following steps: mixing a weighed quantity of a carbon support, ethylene glycol and a solvent, homogenizing the mixture and subsequently adding a palladium precursor, heating the reaction mixture to 80°С, holding the mixture at a constant temperature, adding a platinum precursor, heating the reaction mixture to 80°С, cooling the resulting suspension, adding a sedimentation agent in the form of 1 M NaCl, sedimenting the resulting mixture for 5 hours, filtering and drying. The technical result is the production of a catalyst that has improved activity indices and a reduced degradation rate.
Resumen de: WO2026053856A1
The present disclosure relates to a method for producing an electrode ink for an enzyme battery, the electrode ink containing an enzyme, a water-soluble mediator, and a porous conductive substance, and the method including: a step 1 for preparing a first mixture containing a liquid in which the mediator is dissolved in an aqueous medium, and the porous conductive substance; a step 2 for adding the enzyme to the first mixture and performing a dispersion treatment at 60°C or lower under reduced pressure to obtain a second mixture; and a step 3 for adding and mixing a binder with the second mixture to obtain the electrode ink.
Resumen de: WO2026053918A1
Provided are: a matrix material to be used in a composite film containing nanofibers and a matrix material, the matrix material comprising a polymer compound containing a sulfonic acid group and/or a phosphonic acid group; a nanofiber to be used in an electrolyte film comprising nanofibers and the matrix material, the nanofibers being formed by using a nanofiber polymer compound containing a sulfonic acid group and/or a phosphonic acid group; an electrolyte film comprising the nanofibers and the matrix material; a fuel cell provided with the electrolyte film; and a water electrolyzer which uses the electrolyte film.
Resumen de: WO2026054154A1
According to one embodiment, a vehicle hydrogen generator having a hydrogen generation amount adjustment device may comprise a PEM water electrolysis stack for generating hydrogen by electrolyzing water, wherein the PEM water electrolysis stack includes: a water tank for storing water for generating hydrogen through electrolysis; an electrolysis cell for generating hydrogen by electrolyzing the water provided from the water tank; a water separator which removes moisture contained in the hydrogen provided from the electrolysis cell and which provides the removed moisture to the water tank; and a control unit electrically connected to the electrolysis cell and the water tank.
Resumen de: US20260074245A1
A device for separating liquid water from a recirculation gas stream in a fuel cell system includes an outer cylindrical tank. This tank includes a sidewall with a gas inlet port, a top wall, and a bottom with a water outlet port. The gas inlet port is designed to receive an input stream from the anode side of the fuel cell system. Inside the outer cylindrical tank, an inner protection tube is in fluid communication with the gas outlet port. This inner protection tube allows separated gas to flow to the gas outlet port while preventing liquid water from entering the gas outlet. The inner protection tube has an entry opening for receiving the separated gas flow. The anode knockout device is modified to reduce the formation of water droplets that might be entrained in the recirculation gas steam.
Nº publicación: US20260074240A1 12/03/2026
Solicitante:
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
Resumen de: US20260074240A1
In this embodiment, an anode catalyst layer disposed on one surface of the solid polymer electrolyte membrane and the other surface of the solid polymer electrolyte membrane are provided. A membrane electrode assembly having a cathode catalyst layer disposed thereon, wherein the membrane electrode assembly comprises a metallic ions selected from cerium ions and manganese ions and a host compound capable of forming a clathrate compound with the metallic ions, wherein the cathode catalyst layer comprises an electrode catalyst, a binder, and an organic nitrogen-containing compound, wherein the electrode catalyst comprises a metal-supported catalyst comprising a catalyst metal and a support supporting the catalyst metal, and wherein the organic nitrogen-containing compound is at least one compound selected from the group consisting of a compound of formula (1), a compound of formula (2), and a compound of formula (3), or a polymer thereof.