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480
results.
Updated on
19/10/2025 [06:48:00]
Results 400 to 425 of 480
Absstract of: US2025316729A1
A fuel cell system capable of defreezing a dedicated component by guiding a coolant via a coolant branch line from a fuel cell stack to the dedicated component which may be a water separator, an exhaust water pipe, a valve, a water tank, or a combination thereof. Also a vehicle comprising such fuel cell system.
Absstract of: US2025316734A1
A fuel cell system is introduced. The fuel cell system may comprise a fuel cell stack, and a controller configured to determine a dew point of gas flowing in the fuel cell stack, determine, based on the determined dew point and an operating temperature of the fuel cell stack, a change rate of an amount of hydrogen crossover, and control, based on a target operating temperature, the operating temperature of the fuel cell stack, wherein the target operating temperature is changed based on the determined change rate.
Absstract of: US2025316728A1
A duct assembly includes a metallic flange having a first side, a second side opposite the first side, and a projection extending from the second side. An inner surface of the metallic flange extends between the first side and an end of the projection distal from the second side of the metallic flange to define a flange passageway. The first side of the metallic flange is configured to join to a metallic mounting surface of a vehicular component when the duct assembly is mounted at the vehicular component. The duct assembly also includes a plastic duct received at the projection of the metallic flange and having a duct passageway in fluid communication with the flange passageway. The duct passageway is configured to fluidly communicate with the vehicular component via the flange passageway when the duct assembly is mounted at the vehicular component.
Absstract of: US2025316732A1
A radiator of a fuel cell system may include plurality of fans mounted on a surface of the radiator, and an exhaust inlet through which fuel cell stack exhaust of the fuel cell system passes through the radiator. A first fan of the radiator may be configured for discharge of fuel cell stack exhaust, and operation of the first fan is controllable based on at least one parameter associated with the discharge of the fuel cell stack exhaust. A second fan of the radiator may be configured for cooling, and operation of the second fan is controllable based on at least a temperature of the fuel cell system. A controller may be configured to control the operation of the first fan based on whether the at least one parameter satisfies an exhaust discharging criteria.
Absstract of: WO2025210022A1
The invention relates to a fuel cell system (100) having: at least one fuel cell stack (101); an air path (10), air from the surroundings reaching the fuel cell via the air path (10); an exhaust gas line (12); a fuel line (20), fuel being transported to the fuel cell stack (101) via the fuel line (20); and a circulation line (50), the circulation line (50) having a purge line (40). A device (1) for determining the hydrogen concentration of an exhaust gas having a dosing element (4) is located in the exhaust gas line.
Absstract of: US2025316727A1
A fuel cell system, in particular for a vehicle, includes at least one fuel cell having an anode region to be fed with hydrogen-containing anode gas at an anode inlet region, a cathode region to be fed with oxygen-containing cathode gas at a cathode inlet region, an anode outlet region for releasing anode offgas, and a cathode outlet region for releasing cathode offgas, and also a buffer store for receiving anode offgas from the anode outlet region.
Absstract of: US2025316726A1
A fuel cell system includes a fuel cell stack, a drain valve connected to a side of an anode of the fuel cell stack, and a controller. The controller is configured to determine a drained water amount at the anode side of the fuel cell stack according to opening of the drain valve, and to control a hydrogen supply pressure supplied to the fuel cell stack by activating different pressure control functions in accordance with a result of comparison between the drained water amount and a predetermined required drain amount.
Absstract of: US2025316725A1
A system includes a first fan configured to dissipate excess heat generated during electrochemical reactions that occur within a fuel cell stack of a fuel cell system and to direct exhaust air of the fuel cell system. A first air shroud surrounds the first fan, and the first air shroud includes a hinged door. The hinged door is configured to divert exhaust air from the first fan to an inlet of the fuel cell stack to keep an inlet air temperature of the fuel cell stack above a predetermined temperature level.
Absstract of: US2025316723A1
A fuel cell stack includes multiple stacked unit cells. Each unit cell includes a first separator, a second separator, and a power generation portion sandwiched by the first separator and the second separator. A flow passage and a gasket are arranged between the first separator of a first unit cell and the second separator of a second unit cell. The gasket surrounds a supply manifold, the flow passage, and a discharge manifold. The gasket includes an annular body and a guide projection. The first separator of the first unit cell includes at least one first rib located adjacent to an inner peripheral side of the body. The second separator of the second unit cell includes at least one second rib located adjacent to the inner peripheral side of the body. The first rib and the second rib project so as to contact each other and extend to intersect each other.
Absstract of: US2025316722A1
A plate arrangement for an electrochemical cell, in particular a fuel cell, includes a lattice for a sandwich-like arrangement between a first plate lying in a base plane and a second plate parallel thereto, and is designed as an expanded metal. The plate arrangement a plurality of nodes and webs that connect the nodes, Rows of nodes are formed which run parallel to one another in a plan view of the lattice and define a longitudinal direction. All nodes have a planar, bent shape with a bending line that is oriented transversely to the longitudinal direction and separates two node sections from one another. At least in a subset of the nodes, one of the node sections is arranged at least approximately parallel to the plates.
Absstract of: US2025316724A1
A datum rail for a fuel cell stack system including a body extending along a longitudinal axis, including a first end, a second end opposite the first end, a channel extending between the first end and the second end, and one or more through holes extending through the body with respect to the longitudinal axis. The datum rail further including at least one rod arranged in each of the one or more through holes and extending between the first end and the second end.
Absstract of: WO2025209914A1
The application relates to a process for preparing a starting monomer by imidazolation of an aldehyde group in the para position of a substituted vinylphenyl starting material and to a starting monomer prepared by this method. The application further relates to a method for preparing a polymer from said starting monomer, to a polymer produced in this way, to a membrane consisting of said polymer, and to the use of the membrane for electrolysis, in fuel cells, in redox flow batteries or for dialysis.
Absstract of: WO2025209905A1
The invention relates to a functional component (30) for a blower (1) of a fuel cell assembly (205) for a vehicle (200a), in particular a utility vehicle (200b); wherein the functional component (30) has an inlet side (41) and an outlet side (42) and forms an annular channel (10) for conducting a gas mixture (40) from the inlet side (41) to the outlet side (42); the functional component (30) has a bearing seat (18) for receiving an inlet-side bearing (11) for rotatably mounting a motor shaft (7) of the blower (1); the functional component (30) has a water separation channel (32), wherein the water separation channel (32) is designed to discharge a liquid (48) from the gas mixture (40) out of the annular channel (10) when the motor shaft (7) rotates; and the functional component (30) is designed to be arranged in an interior space (2a) formed by a main housing (2) of the blower (1) and receiving a stator (8) of the blower (1) outside the annular channel (10) in the assembled state.
Absstract of: WO2025209995A1
The invention relates to a high-temperature electrolyser comprising corrugated interconnectors (4) equipped with reinforcing rods (30). The invention also relates to the associated production method.
Absstract of: US2025316721A1
A method of forming a fuel cell layer includes forming a separator plate including a plurality of corrugations defining a plurality of anode flow channels at a first side of the separator plate and a plurality of cathode flow channels at a second side of the separator plate opposite the first side. A support layer is formed, including a porous portion and a solid portion at least partially surrounding the porous portion. The support layer and the separator plate are stacked, and the support layer is secured to the separator plate via a field-assisted sintering or spark plasma sintering (FAST) process.
Absstract of: US2025316720A1
A novel microfabricated Titanium-based porous transport layer (PTL) is described, for use in a hydrogen electrolytic fuel cell. The novel structure may have improved properties and enable improved utilization of the catalyst layer, which is a key metric for hydrogen fuel systems. The structure is intended to be used with a polymeric membrane and is disposed directly adjacent to the catalytic layer on the cathode side of the structure. The improved performance result from is three dimensions microfabricated design, which allows a large number of tightly controlled through hole structure, which increases the surface area available for the electrolytic reaction.
Absstract of: US2025316731A1
A method for calibrating a device for regulating the return flow (70) in a fuel cell system (1), the fuel cell system (1) having a fuel cell stack (101), an air path (10), an exhaust gas line (12) and a fuel line (20) with a recirculation circuit (50).The following method steps are carried out:a. setting a stationary load point of the fuel cell system (1);b. fixing the current drawn from the fuel cell stack (101);c. actuating a device for regulating the return flow (70) such that exhaust gas from the exhaust gas line (12) flows via a return flow line (66) into the air path (10);d. increasing the mass flow of exhaust gas flowing through the return flow line (66) by actuating the device for regulating the return flow (70) until a hydrogen concentration can be measured at a hydrogen sensor (64);e. defining the maximum permitted mass flow of exhaust gas through the return flow line (66) for the previously selected stationary load point.
Absstract of: US2025316718A1
The electrochemical oxygen reduction catalyst includes metal particles and a modifier that modifies the metal particles. The present disclosure relates to an electrochemical oxygen reduction catalyst, wherein the modifier is an organic nitrogen compound, the organic nitrogen compound includes a triazine ring and fluorine bonded to the triazine ring via a covalent bond, and the organic nitrogen compound has a fluorine content of 29 g/eq or less.
Absstract of: US2025316716A1
The present disclosure relates to an electrochemical oxygen reduction catalyst comprising metal particles and a modifier for modifying the metal particles, wherein the modifier is an organic nitrogen compound, wherein the organic nitrogen compound comprises pyridine type nitrogen and may further comprise a quaternary nitrogen, and wherein the organic nitrogen compound has a total content of the pyridine type nitrogen and, if present, the quaternary nitrogen of 40 g/eq or less.
Absstract of: US2025316715A1
A redox flow battery apparatus includes a membrane, a flow plate, and a porous electrode positioned between the membrane and the flow plate. The porous electrode has a surface configured for a reversible metal deposition thereon from a metal ion electrolyte solution flowing through the porous electrode. The porous electrode has a predefined porosity configured to allow the flowing of the metal ion electrolyte solution through the porous electrode.
Absstract of: US2025316719A1
The present invention provides a carbon-free electrocatalyst for oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cells (PEMFCs). Described herein is a Pt decorated carbon-free catalyst with solid-state proton conducting zirconium phosphate (ZrP) as support material for PEMFC. The invention further describes the process for obtaining said Pt decorated conducting zirconium phosphate (ZrP) as support material as proton conductor. Also, the present invention relates to an efficient proton conductor which optimizes utilization of Pt- catalyst thereby improving the performance of the PEMFC. The carbon-free system alleviates the problem of carbon-corrosion leading to detachment of Pt-nanoparticles.
Absstract of: US2025316735A1
The current invention describes Anion exchange polymer electrolyte membrane (AEPEM) by simple UV-irradiation procedure using simple acrylate/methacrylate monomers/oligomers, with at least one of them possessing quaternary ammonium group to obtain a polymer membrane, which when soaked in 6 M KOH solution yield an AEPEM having OH— group incorporated into the polymer matrix having good ionic conductivity.
Absstract of: AU2024241128A1
This control system (163) controls a work machine (10) having a work device as well as being provided with a fuel cell (143) and a power storage device (144). The control system is provided with: a required power determination unit (174) that determines the magnitude of required power necessary for the operation of the work machine; and a fuel cell control unit (178) that controls the fuel cell, on the basis of the standard generation power of the fuel cell, the maximum dischargeable power of the power storage device, and the required power.
Absstract of: AU2024225709A1
The invention provides an electrolysis cell for alkaline water electrolysis as well as a method to make the cell with application of insert molding procedures. The invention also includes cells for PEM and AEM electrolysis and for fuel cell function. The cell is characterized by low material and manufacturing costs as well as the possibility to significantly scale up production while maintaining expected operational integrity. This invention enables one to apply insert-molding to manufacture the various types of specific cells and combine each type into stacks. In particular, the insert molding is applied to the membrane/ diaphragm and the separator plate of each cell. Cross flow and co-flow configurations are described.
Nº publicación: DE102025112631A1 09/10/2025
Applicant:
TOYOTA BOSHOKU KK [JP]
TOYOTA BOSHOKU KABUSHIKI KAISHA
Absstract of: DE102025112631A1
Ein Brennstoffzellenstapel weist mehrere gestapelte Einheitszellen auf. Jede Einheitszelle weist einen ersten Separator, einen zweiten Separator und einen Stromerzeugungsabschnitt auf, der von dem ersten Separator und dem zweiten Separator in die Mitte genommen wird. Zwischen dem ersten Separator einer ersten Einheitszelle und dem zweiten Separator einer zweiten Einheitszelle sind ein Strömungsdurchlass und eine Dichtung angeordnet. Die Dichtung umgibt einen Zufuhrverteiler, den Strömungsdurchlass und einen Abgabeverteiler. Die Dichtung weist einen ringförmigen Körper und einen Führungsvorsprung auf. Der erste Separator der ersten Einheitszelle weist mindestens eine erste Rippe auf, die die sich neben einer Innenumfangsseite des Körpers befindet. Der zweite Separator der zweiten Einheitszelle weist mindestens eine zweite Rippe auf, die sich neben der Innenumfangsseite des Körpers befindet. Die erste Rippe und die zweite Rippe stehen so vor, dass sie sich gegenseitig berühren, und verlaufen so, dass sie sich gegenseitig überschneiden.
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