Resumen de: US20260024793A1
The present disclosure provides a membrane electrode assembly having excellent durability and performance. In the embodiment, the membrane electrode assembly includes metal ions selected from cerium ions and manganese ions, and a crown ether compound capable of forming an inclusion compound with the metal ions or a salt thereof. The cathode catalyst layer includes an electrode catalyst and an electrolyte. The electrode catalyst is a metal-supported carrier in which metal particles having catalytic activity are supported on a carrier having pores. An external-internal surface area ratio is 1.20 or less. An external-internal particle count ratio is 0.70 or less.
Resumen de: US20260024784A1
A fuel-cell-powered aircraft system has integrated air-cooled fuel cell stacks positioned within an interior space of at least one wing of an aircraft. An airflow path is positioned in contact with at least a heat exchanger of the fuel cell stack. The induced flow of air through the airflow path cools the heat exchanger. The efficiently-induced flow of air for cooling the fuel cell stack has a zero or minimal drag penalty.
Resumen de: US20260024781A1
In general, the present disclosure is directed to methods to produce stable oxygen electrodes for use in energy storage applications such as fuel cells. Aspects of the disclosure can provide improved stability, especially for oxygen electrodes including strontium, which can broaden applications and reduce costs to improve economic feasibility. Embodiments of the disclosure can include methods for producing oxygen electrodes, compositions of stabilizing coatings that can be applied to electrodes to yield a more stable oxygen electrode, and fuel cells incorporating oxygen electrodes produced according to the disclosure. In particular, the disclosure is directed to a finding that a conformal coating can be achieved by calcining a composition including a strontium salt, a cobalt salt, and a tantalum compound on a base electrode, the base electrode having an elemental composition including strontium.
Resumen de: US20260024792A1
A fuel cell system and a method of controlling the same are provided. The fuel cell system includes a second controller that transmits a total control command for satisfying a total required control amount of the plurality of modules to at least one control target controller among a plurality of identified first controllers based on an identification result of the plurality of identified first controllers. The at least one control target controller individually controls a corresponding fuel cell module in response to the total control command.
Resumen de: US20260024787A1
The fluid hydrogen carrier of this disclosure contains a hydrogen storage alloy and an alkaline electrolyte.
Resumen de: US20260024780A1
Provided is a membrane electrode assembly which is excellent in durability and performance. The membrane electrode assembly includes a metal ion selected from the group consisting of cerium ion and manganese ion, and a crown ether compound capable of forming an inclusion compound with the metal ion or a salt thereof. The cathode catalyst layer includes an electrode catalyst and an electrolyte. The electrode catalyst is a metal particle-supported carrier in which metal particles having catalytic activity are supported on a carrier having pores. The carrier has: a pore volume distribution having a peak pore diameter of 2.0 nm or more and 9.0 nm or less in pore diameter; a pore volume of mesopores of 2 nm to 30 nm as 7.5 cc/g or more; and a BET specific surface area of 330 m2/g or more.
Resumen de: US20260024788A1
A waste reduction system that utilizes organic solids suspended in a waste stream to produce carboxylic acids, which can then be employed as an input to a microbial fuel cell or other biological processes to further enhance biogas production, is provided. The organic waste stream influent undergoes a multistage fermentation process in which fermentative microorganism metabolize the organic waste materials and produce one or more carboxylic acids, especially short chain fatty acids. The carboxylic acids serve as a food source for bacteria within an anode compartment of an MFC that generates useable electricity therefrom.
Resumen de: US20260024795A1
A method for preparation of an iron salt battery electrolyte comprises: supplying FeCl3 into an agitated reactor containing a dilute solution of HCl having a pH less than 1; supplying elemental iron into the reactor such that the elemental iron reacts with iron(III) to form iron(II); monitoring the pH of reactor solution; using the monitored pH to control supplying additional HCl into the reactor in order to maintain a pH of the reactor solution less than 1; and converting excess Fe3+ to Fe2+ in an electrochemical cell having a membrane or separator between an anode and cathode by directing the reactor solution from the reactor through the anode. A flow rate of the reactor solution through the anode is controlled to obtain a final Fe3+ concentration in the anode outlet FeCl2 stream of 15% or less than 15% of a total dissolved iron concentration as the iron salt battery electrolyte.
Resumen de: US20260024786A1
A fuel cell assembly has an enclosure including a fuel cell stack, and an air processing unit, and a fuel cell controller comprising processing circuitry configured to monitor and control operation of the fuel cell assembly. The air processing unit has a humidifier housing comprising respective ports configured to receive a first flow of compressed air, provide a second flow of humidified compressed air to the fuel cell stack, receive a third flow of exhaust air expelled from the fuel cell stack, and provide a fourth flow of dehumidified exhaust air. The housing is configured to seat therein two or more humidifier membrane cartridge modules that are removable and replaceable. A removable cover is configured to be coupled to the housing, the cover has at least one closable opening configured to be opened to provide access to an interior of the housing.
Resumen de: US20260024785A1
The present invention relates to a cartridge for a fuel cell humidifier, and a fuel cell humidifier, wherein the cartridge is provided in the fuel cell humidifier that humidifies dry gas to be supplied to a fuel cell stack by using wet gas, and comprises: an inner case having openings at respective ends; an inner inlet formed in the inner case and configured to introduce first gas into the inner case; an inner outlet disposed at a position spaced apart from the inner inlet along a first axis direction and configured to discharge the first gas from the interior of the inner case; and a hollow fiber membrane bundle contained inside the inner case, wherein the hollow fiber membrane bundle comprises a plurality of interlaced hollow fiber membranes formed by interlacing at least two hollow fiber membranes.
Resumen de: US20260024798A1
According to the present embodiment, an electrochemical cell stack includes a stack, an insulating plate, a metal plate, a metal pipe, and an insulating joint. The stack is a stack of electrochemical cells. The metal pipe communicates with a communication hole of the stack which allows either the anode fluid or the cathode fluid to flow into or flow from the electrochemical cells therethrough, via a first hole of the insulating plate and a second hole of the metal plate. The insulating plate is arranged on each of an upper surface and a lower surface of the stack and made of an electrically insulating material. The metal plates sandwich the insulating plates from outside. The insulating joint insulates the metal pipe and the metal plate from each other.
Resumen de: US20260024782A1
An electrochemical cell includes an electrolyte having a first side and an opposing second side, an oxygen electrode located on the first side of the electrolyte, a fuel electrode support, and an active fuel electrode located between the fuel electrode support and the second side of the electrolyte. The fuel electrode support includes a cermet containing a nickel containing phase and a ceramic phase. The ceramic phase may include 4 to 10 mol percent (mol %) yttria stabilized zirconia ((4-10)-YSZ)) or zirconia doped with at least one of alumina, ceria or titania. Alternatively or in addition, the nickel containing phase may include nickel doped with at least one of magnesium oxide, calcium oxide, or titanium oxide.
Resumen de: US20260024796A1
The present invention aims to solve the aforementioned problems by providing a structure that allows for the easy removal and replacement of only specific cells within a fuel cell stack, and ensures that each cell can be self-aligned during this process. The present invention is characterized by modularizing fuel cell stacks by grouping cells into bundles. Specifically, the structure comprises: a cell bundle (110) in which multiple fuel cell cells are stacked; an upper plate (120) and a lower plate (130) positioned above and below the cell bundle, respectively; and side coupling members (140, 150) attached to both sides of the upper and lower plates.
Resumen de: US20260024783A1
This disclosure relates to electrolyzer composite membranes, and in particular, to a composite membrane having at least two reinforcing layers comprising a microporous polymer structure and a surprisingly high resistance to piercing. The electrolyzer composite membranes have as recombination catalyst configured to be disposed closer to an anode than to a cathode in a membrane-electrode assembly (MEA). The disclosure also relates to membrane-electrode assemblies and electrolyzers comprising the membranes, and to method of manufacture of the membranes.
Resumen de: US20260024797A1
A support assembly for a fuel cell stack includes a retainer plate having a mounting end to mount the retainer plate to a base plate to arrange the retainer plate parallel to a stacking direction of the fuel cell stack when the fuel cell stack is disposed on the base plate, a connecting end disposed at a predetermined distance from the mounting end, a stack mount configured to attach to the fuel cell stack between a first end and a second end of the fuel cell stack and attach to the connecting end to connect the retainer plate to the fuel cell stack at the connecting end, wherein the retainer plate is delimited by the mounting end and the connecting end.
Resumen de: US20260022011A1
Disclosed is a method of: providing a hydrogenated sp2 carbon allotrope, and releasing hydrogen gas from the carbon allotrope. The method may be used an apparatus having: a vessel for containing the hydrogenated sp2 carbon allotrope, a fuel cell capable of using hydrogen gas a fuel, and a tube for transporting hydrogen gas from the vessel to the fuel cell. The carbon allotrope may be made by: providing a mixture of an sp2 carbon allotrope and liquid ammonia, adding an alkali metal to the mixture, and sonicating the mixture to form a hydrogenated form of the carbon allotrope. The hydrogenated carbon can be at least 3.5 wt % hydrogen covalently bound to the carbon.
Resumen de: US20260021451A1
Disclosed are an anion-exchange membrane and a manufacturing method therefor. The anion-exchange membrane may include: a porous polymer support composed of a membrane structure; and an anion-exchange polymer, wherein the anion-exchange polymer may be present on a surface and in pores of the porous polymer support, anion-exchange groups of the anion-exchange polymer may be uniformly distributed on the surface and in the pores of the porous polymer support, and the anion-exchange polymer may be a crosslinked product of a composition including a crosslinkable monomer represented by Formula 1:wherein X− is as disclosed in the specification.
Resumen de: US20260022800A1
A hydrogen supply system includes a detachable hydrogen tank, a hydrogen consumption apparatus that consumes hydrogen in the hydrogen tank, and a control device. The hydrogen consumption apparatus includes a detachment and attachment mechanism that detaches the hydrogen tank from the hydrogen consumption apparatus and attaches the hydrogen tank to the hydrogen consumption apparatus. The detachment and attachment mechanism includes a motor that controls detachment and attachment of the hydrogen tank from and to the hydrogen consumption apparatus. When a torque value of the motor exceeds a threshold during the control of the detachment and attachment of the hydrogen tank from and to the hydrogen consumption apparatus, the control device returns the hydrogen tank to a position where a moving process in which the threshold being exceeded is detected is started.
Resumen de: US20260022802A1
A hydrogen supply system including: a plurality of hydrogen tanks that is attachable and detachable; a hydrogen consumption device that consumes hydrogen of the hydrogen tanks; and a control device is provided. The hydrogen consumption device includes an attaching-detaching mechanism including a plurality of motors that controls attaching and detaching of the hydrogen tanks with respect to the hydrogen consumption device, the motors corresponding to the attaching and detaching of the respective hydrogen tanks. The control device disposes, based on a temperature of each of the motors, a hydrogen tank of the hydrogen tanks to a hydrogen supply start position at which the hydrogen tank and the hydrogen consumption device are connected in a state in which the hydrogen tank is allowed to supply hydrogen to the hydrogen consumption device, or disposes the hydrogen tank to a hydrogen supply standby position.
Resumen de: US20260022481A1
Composite anion exchange membranes are described. The composite anion exchange membranes comprise an anion exchange polymer containing a hydrogen recombination catalyst dispersed in the anion exchange polymer. The anion exchange membrane may also include a radical scavenger. The anion exchange polymer comprises a plurality of repeating units of formula (I)Catalyst coated membranes and membrane electrode assemblies made using the composite anion exchange membranes are also described.
Resumen de: US20260022474A1
Hybrid electrocatalyst layers for use in an electrochemical cell and processes for making the same are described. The hybrid electrocatalyst layers include at least one ion-conducting layer and at least one nonionic conductive catalyst layer. The processes for making the hybrid electrocatalyst layers include a sintering step, which provides greater durability of the hybrid electrocatalyst layers.
Resumen de: US20260022470A1
A method for producing hydrogen by means of water electrolysis, in which a direct electrolysis current is fed to one or more electrolysis units at least in a first operating mode, wherein the direct electrolysis current is supplied from a mains current using a current conversion arrangement, wherein the mains current is an alternating current, wherein the current conversion arrangement, comprises one or more first synchronous electric machines which are operable as motors and one or more second synchronous electric machines which are operable as generators, wherein the one or more first synchronous electric machines is/are operated using the mains current, wherein the one or more second synchronous electric machines is/are driven using the one or more first synchronous electric machines, and wherein the direct electrolysis current is supplied using the one or more second synchronous electric machines. The present invention also relates to a corresponding plant.
Resumen de: US20260024791A1
A computer system has processing circuitry configured to issue control information to a fuel cell system being fueled by hydrogen gas and air. The air is supplied to the fuel cell system at an air feeding pressure. The fuel cell system being adapted to be cooled by a cooling system accommodating a coolant.
Resumen de: US20260024779A1
A membrane electrode assembly includes a solid polymer electrolyte membrane, an anode catalyst layer disposed on a first surface of the solid polymer electrolyte membrane, and a cathode catalyst layer disposed on a second surface of the solid polymer electrolyte membrane, the membrane electrode assembly includes a metal ion selected from a cerium ion and a manganese ion; and a host compound capable of forming a clathrate compound together with the metal ion. The cathode catalyst layer contains an electrode catalyst, and an ionomer, the electrode catalyst is a metal supported catalyst containing a catalyst metal, and a support supporting the catalyst metal, and an ionomer coverage ratio of the catalyst metal in the cathode catalyst layer is 40% or less.
Nº publicación: US20260024789A1 22/01/2026
Solicitante:
HYUNDAI MOTOR COMPANY [KR]
KIA CORP [KR]
HYUNDAI MOTOR COMPANY,
KIA CORPORATION
Resumen de: US20260024789A1
An apparatus and a method are for determining air distribution performance of a fuel cell system. The apparatus includes: an air cut off valve connected to a downstream side of an air compressor and supplied with first air discharged from the air compressor; a first fuel cell stack connected to the air cut off valve through a first air path and supplied with second air through the first air path; a second fuel cell stack connected to the air cut off valve through a second air path and supplied with third air through the second air path; and a controller. The controller determines a ratio between a flow rate of the third air and a flow rate of the second air based on absolute humidity values of the first, second, and the third air, and determines air distribution performance between the second fuel cell stack and the first fuel cell stack based on the ratio.