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580
results.
Updated on
17/12/2025 [06:49:00]
Results 475 to 500 of 580
Absstract of: WO2025249033A1
An energy supply system (200) includes a fuel cell device (920) and a heat source device (440). The heat source device (440) includes a first portion (441) and a second portion (442). The first portion (441) heats a first heat medium (h1) using heat from the fuel cell device (920). The second portion (442) further heats the first heat medium (h1) heated by the first portion (441).
Absstract of: WO2025248917A1
This fuel cell system comprises a fuel cell, a battery for charging with power generated by the fuel cell, and a drive device that runs on power supplied from the fuel cell and/or the battery. The output current of the fuel cell is dependent on the voltage of the battery. The system comprises: a control unit for controlling the driving of the drive device; and a calculation unit for calculating a smoothing value on the basis of a switching time for a switch to be made from a non-power generation state in which the fuel cell has stopped generating power to a power generation state in which a predetermined amount of power is generated. The control unit performs smoothing control to slow down changes in the output of the drive device by controlling the output of the drive device to a control value calculated on the basis of the smoothing value in both cases where there has been an output request for the drive device while the fuel cell was in the power generation state and where there has been an output request for the drive device while the fuel cell was in the non-power generation state.
Absstract of: WO2025248664A1
According to the present disclosure, provided is an electrode for a microbial fuel cell, the electrode comprising a tube-shaped container. The tip end of the container is sealed by a semipermeable membrane. At least a portion of the interior of the container is filled with an aqueous solvent. A cathode is inserted into the distal end of the container. The cathode is at least partially immersed in the aqueous solvent inside the container.
Absstract of: WO2025246080A1
The present application discloses a fuel cell stack module and a vehicle. Battery cells of the fuel cell stack module and a body of a gas inlet end plate assembly are respectively provided with at least six fluid communication openings. A body of an electrode plate of each battery cell is further provided with at least two active areas, the fluid communication openings surround the peripheries of the at least two active areas, at least one fluid communication opening in the battery cell for allowing a reaction medium to flow is communicated with the at least two active areas, thereby reducing the number of fluid communication openings. The electrode plate of each battery cell uses a multi-active-area structural design to increase the active area. Moreover, the fluid communication openings can utilize the space on each side edge of the body to increase the total area of the fluid communication openings. The middle of each of the gas inlet end plate assembly, a stack core, and a blind end plate assembly is provided with fastening holes for allowing fasteners to pass through, so that the problem of uneven pressing force in the middle part of each active area during stacking of a cell stack can be solved, thereby implementing ultra-high-power fuel cells using a single-stack solution.
Absstract of: WO2025245712A1
The present disclosure relates to a direct cyclic hydrocarbon fuel cell, with desired characteristics such as for instance no crossover, zero emissions of carbon dioxide/carbon monoxide gas, high H2 capacity, safe, ease of handling, and low energy consumption.
Absstract of: WO2025250325A1
The present technology relates generally to a fuel cell electrode including about 1 wt.% to about 10 wt.% carrageenan, about 0.5 wt.% to about 50 wt.% metal oxide having a dimension of about 0.1 nm to about 100 nm, and about 1 wt.% to about 20 wt.% of a catalyst comprising CeO2 and a metal catalyst. Fuel cell electrodes using carrageenan instead of NAFION® are more environmentally friendly and biodegradable. The fuel cell electrodes are useful for preparing direct ethanol fuel cells.
Absstract of: WO2025250286A1
The following disclosure relates to systems and methods for optimizing an operation of an electrochemical system. An optimization system may include a processor configured to determine an adjustment to one or more setpoints for the operation of the electrochemical system based on an optimization model that takes into account a desired performance parameter, an operating load point of the electrochemical system, and/or operating conditions of the electrochemical system received by the processor. In other examples, the optimization system includes a controller configured to: receive desired operating set points for operation of an electrochemical system; receive operating conditions of the electrochemical system; and determine an adjustment to an off-taker control valve, an electrochemical stack pressure control valve, a power supply unit, or a combination thereof based on an optimization model.
Absstract of: WO2025250123A1
An injector cleaning system for use with an electrolyte injection system is disclosed. The cleaning system includes condensing container that contains a cleaning solution. The condensing container is constructed to circulate the cleaning solution through the injection system to remove contaminants. The cleaning system also includes a distillation container that is constructed to collect the contaminated cleaning solution within the injection system. The distillation container boils the contaminated cleaning solution to create a cleaning solution vapor and then transfers the vapor to the condensing container, where the vapor is condensed into a cleaning solution for re- circulation through the injection system.
Absstract of: WO2025249931A1
A method for preparing a metal catalyst composite, according to one embodiment of the present invention, comprises: a first step of dispersing a polystyrene-based material in a first solvent, and then hyper-crosslinking same so as to obtain a hyper-crosslinked product; a second step of crushing the hyper-crosslinked product; a third step of carbonizing the crushed hyper-crosslinked product so as to prepare carbonized polystyrene-based particles; and a fourth step of dispersing the carbonized polystyrene-based particles in a second solvent, mixing a precursor of a catalytic metal, and then reducing same so as to prepare a metal catalyst composite.
Absstract of: WO2025249928A1
A method for manufacturing a metal catalyst composite according to an embodiment of the present invention comprises: a first step for adding an initiator to a mixture containing a monomer, a first crosslinking agent, and a surfactant to prepare polystyrene-based copolymer particles; a second step for hyper-crosslinking the polystyrene-based copolymer particles to prepare hyper-crosslinked polystyrene-based copolymer particles; a third step for carbonizing the hyper-crosslinked polystyrene-based copolymer particles to prepare carbonized polystyrene-based copolymer particles; and a fourth step for dispersing the carbonized polystyrene-based copolymer particles in a first solvent, adding a catalyst metal precursor, and then reducing same to manufacture a metal catalyst composite.
Absstract of: WO2025245551A1
A boxer module (10) for an electrochemical cell system (200), comprising a plurality of cell stacks (100) arranged one above another along a boxer direction (BR), each having a fuel section with a fuel supply section (122) for supplying fuel supply gas (KZG) and a fuel discharge section (124) for discharging fuel exhaust gas (KAG) and an air section having an air supply section (132) for supplying air supply gas (LZG) and an air discharge section (134) for discharging air exhaust gas (LAG), wherein at least one common module gas-conducting section (110) is arranged between two cell stacks (100) with a conducting direction (FR) transverse to the boxer direction (BR) such that the module gas-conducting section (110) separates a first module region (M1) with a first subset (T1) of the cell stacks (100) from a second module region (M2) with a second subset (T2) of the cell stacks (100), wherein the module gas-conducting section (110) is in common fluid-communicating connection with the fuel supply section (122), the fuel discharge section (124), the air supply section (132) or the air discharge section (134) of the cell stacks (110) of the two subsets (T1, T2) of the cell stacks (100) along the boxer section (BR).
Absstract of: WO2025247777A1
The invention relates to an assembly (100) comprising: a module (80) comprising a plurality of SOEC/SOFC solid oxide stacks (20a, 20b, 20c, 20d) electrically connected in series, each stack (20a, 20b, 20c, 20d) comprising a gas inlet (EG) and a gas outlet (SG); a heat exchanger (10); a heating device (30) for heating the gases (G), and a bypass duct (40) configured to supply gas (G) in a controlled manner to only a portion of the gas inlets (EG) of the stacks (20a, 20b, 20c, 20d), wherein the bypass duct (40) comprises control means (45) intended to control the supply of gas (G) from the bypass duct (40) to the portion of the gas inlets (EG).
Absstract of: WO2025247610A1
Cell voltage monitoring connector (100) for monitoring a cell voltage of a fuel cell stack (1) having a plurality of alternatingly stacked bipolar plates (2) and membrane electrode assemblies (4), wherein the cell voltage monitoring connector (100) comprises a housing (101) made from an electrically insulating material and at least one electrical contact element (160; 170), which is made from an electrically conducting material and adapted to contact the bipolar plate (2), characterized in that the connector housing (101) has at least one protruding rib (110; 120) which is adapted to be inserted between a bipolar plate (2) and a membrane electrode assembly (4) of the fuel cell stack (1), wherein the at least one protruding rib (110; 120) is equipped with the electrical contact element (160; 170).
Absstract of: WO2025247580A1
The invention relates to a valve device for a fuel cell system and to a fuel cell system having such a valve device. The valve device comprises a valve housing, a first valve seat and a second valve seat which has a larger valve diameter than the first valve seat. The valve device further comprises a valve closing body, which is movably guided in the valve housing along a longitudinal axis, wherein the valve closing body is designed to close the first valve seat in a closed state, and a servo piston unit, which is guided so as to be movable along the longitudinal axis relative to the valve closing body and through the valve closing body. The first valve seat is arranged in the servo piston unit, and the servo piston unit and the valve closing body interact in such a way that the second valve seat is closed by the servo piston unit and the valve closing body in a closed state.
Absstract of: WO2025247571A1
The invention relates to a method (10) for controlling the operation of an electrochemical system (12) comprising at least one reactant supply line (14) and at least one non-return valve (16) located in the reactant supply line (14). It is proposed that, in at least one method step and during normal operation of the electrochemical system (12), the non-return valve (16) is actuated in order to obtain and/or test a functional capability of the non-return valve (16).
Absstract of: WO2025247486A1
The invention provides an electrochemical cell unit (10) with the following general features according to which the cell unit comprises: a support structure (14) carrying cell chemistry layers (18, 20, 22). The cell chemistry layers comprise a fuel electrode layer (18), an oxidant electrode layer (20) and an electrolyte layer (22). The electrolyte layer (22) is located between the fuel electrode layer (18) and oxidant electrode layer (20), and the fuel electrode layer (18) is located between the support structure (14) and the electrolyte layer (22). The support structure (14) comprises a porous region (24) surrounded by a non-porous region (26). At least the electrolyte layer (22) of the cell chemistry layers extends past a perimeter of the porous region (24). An active area of the cell chemistry layers comprises at least the fuel electrode layer (18) and the oxidant electrode layer (20). Typically, the electrolyte layer is present in the active area of the cell chemistry layers and is located between the electrode layers.
Absstract of: WO2025250014A1
The present invention relates to a method for reclaiming metal compounds from a flow battery system and to a flow battery system in which such method for reclaiming metal compounds is implemented. An object of the present invention is to provide a method for reclaiming metal compounds from a flow battery system in which performance instability and environmental issues are prevented or reduced to a minimum.
Absstract of: WO2025248200A1
The present invention relates to a proton exchange membrane containing PVDF in powder form, said PVDF being irradiated, grafted and phosphonated, to the method for preparing said membrane, and to the use of said membrane in fields requiring ion exchange, such as electrochemistry or energy-related fields. In particular, this membrane is used in the design of fuel cell membranes, such as proton-conducting membranes for fuel cells operating with H2/air or H2/O2 (these cells being known by the abbreviation PEMFC for "Proton Exchange Membrane Fuel Cell") or operating with methanol/air (these cells being known by the abbreviation DMFC for "Direct Methanol Fuel Cell").
Absstract of: WO2025247840A1
The invention relates to a method for operating a fuel cell system having a fuel cell stack and an anode subsystem for supplying an anode region of the fuel cell stack with a hydrogen-containing anode gas, wherein nitrogen-enriched anode gas exiting the fuel cell stack is passively recirculated by means of a jet pump via an anode circuit of the anode subsystem. According to the invention, the following steps are carried out in order to detect an increased nitrogen content of the anode gas: - generating pressure pulses in the anode circuit, which lead to negative pressure jumps, - measuring the voltage at the cell level and/or at the stack level during the negative pressure jumps, and - comparing the measured voltage with a predefined threshold value, wherein it is concluded that the nitrogen content is unduly high if the voltage falls below the threshold value. The invention also relates to a control device for a fuel cell system.
Absstract of: WO2025247884A1
The invention relates to a machining device (10) comprising: at least one machining unit (12), in particular a laser drilling unit, which comprises a laser element (18) and at least one optical element (22), wherein the machining unit (12) is designed to introduce at least one recess into a substrate for an electrochemical cell (16) in at least one operating state; and at least one holding unit (24) which comprises at least one coupling element (50), wherein the at least one coupling element (50) is designed to receive at least one substrate for an electrochemical cell (16). According to the invention, the holding unit (24) has at least one rotatably mounted rotation element (52) which is connected to the at least one coupling element (50).
Absstract of: WO2025247887A1
The invention relates to a method for operating a machining device (10a) comprising: at least one machining unit (12a), in particular a laser drilling unit, wherein, in at least one machining step, at least one through-opening (14a) is introduced into the substrate (16a) for an electrochemical cell by means of the machining unit (12a); and at least one open-loop and closed-loop control unit (20a) by means of which parameters of the machining unit (12a) are adjusted. According to the invention, the machining unit (12a) comprises at least one laser that can emit GHz bursts, wherein the individual laser pulses within the burst train are picosecond laser pulses, wherein, in said at least one machining step, the substrate (16a) for an electrochemical cell is machined by means of the GHz burst laser.
Absstract of: WO2025248508A1
The system comprises a fuel cell including electrodes, a fuel inlet for introducing a non-carbon binding fuel into the fuel cell, an air inlet, an electrolyte inlet, and an outlet for outlet of deplenished electrolyte.
Absstract of: WO2025248012A1
The present invention relates to a proton exchange membrane, to a method for preparing said membrane, and to the use of said membrane in fields requiring ion exchange, such as electrochemistry or energy-related fields. More specifically, the invention relates to a proton-exchange membrane comprising ionic liquids covalently bonded to a polymer containing vinylidene fluoride (PVDF) in powder form.
Absstract of: WO2025247772A1
The invention relates to an air supply system (10) for a fuel cell stack (2), in particular for a fuel cell stack (2) of an aircraft fuel cell drive (1), comprising an air provision device (20) for providing an air flow for the fuel cell stack (2) and an air feed device (30) which is arranged downstream of the air provision device (20), can be connected to the fuel cell stack (2), in particular to the cathode side thereof, and can conduct air to the fuel cell stack (2), wherein a humidifying apparatus (31) for humidifying the air for the fuel cell stack (2) is arranged in the air feed device (30). One problem addressed by the invention is that of specifying an air supply system for a fuel cell stack which offers greater robustness against the fuel cell stack drying out. According to the invention, an air supply system (10) which solves this problem is provided in that a water injection apparatus (40) for injecting water into the air flow is arranged between the air provision device (20) and the air feed device (30).
Nº publicación: EP4657476A2 03/12/2025
Applicant:
SILA NANOTECHNOLOGIES INC [US]
GEORGIA TECH RES INST [US]
Sila Nanotechnologies Inc,
Georgia Tech Research Corporation
Absstract of: EP4657476A2
An integrated electrode-separator component, comprises an electrode substrate; and a separator comprising a set of layers comprising at least a first layer, the first layer comprising small wires, the first layer being directly deposited on the electrode substrate, wherein: a total thickness of the set of first layers ranges between about 0.5 µm and about 100 µm; and the small wires exhibit diameters in the range of about 2 nm to about 10 µm and diameter-to-length aspect ratios in the range of about 1:4 to about 1:10,000,000.
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