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617
resultados
Última actualización
14/03/2025 [06:49:00]
Resumen de: US2025083572A1
A power source assembly is provided having a fuel cell module configured to provide a first direct current power output; a battery module configured to provide a second direct current power output; a direct current electric bus configured to provide a net direct current power output to a load; a DC/DC converter in electrical connection with the direct current electric bus, the DC/DC converter configured to receive the first direct current power output from the fuel cell module or the second direct current power output from the battery module; and a controller operably coupled to the DC/DC converter and configured to receive data indicative of the first direct current power output, the controller configured to control the DC/DC converter based on the data indicative of the first direct current power output to maintain a slew rate from the fuel cell module within a slew rate range.
Resumen de: DE102023124699A1
Es ist ein Brennstoffzellensystem (10) mit einem Zwei-Phasen-Kühlsystem angegeben, aufweisend:mindestens eine Brennstoffzelle (12) mit einem Kühlmitteleingang (14) und einem Kühlmittelausgang (16),einen Kondensator (26), wobei der Kondensator (26) mit dem Sammler (18) in Fluidverbindung steht, und eingerichtet ist, das Kühlmittel zu kondensieren und zu unterabzukühlen,eine Bypass-Leitung (28) aufweisend eine Pumpe (30),wobei die Bypass-Leitung (28) mit dem Kühlmittelausgang (16) und dem Kühlmitteleingang (14) in Fluidverbindung steht und eingerichtet ist, das Kühlmittel der Brennstoffzelle (12) mittels einer Pumpe (30) zurückzuführen.
Resumen de: US2025083108A1
A humidifier comprising a wound portion wrapped around a central axis and comprising enclosures, a first one the enclosures comprising a first pair of semipermeable membranes separated by a first spacer layer to form one among wet-gas channels, and a second one of the enclosures comprising a second pair of semipermeable membranes separated by a second spacer layer to form one among dry-gas channels. The dry-gas channels are configured to receive a dry gas through at least part of a first frontal area of the wound portion and in an axial direction along the dry-gas channels. The wet-gas channels are configured to receive a wet gas through at least part of a second frontal area of the wound portion and in the axial direction along the wet-gas channels, the second frontal area being opposite to the first frontal area.
Resumen de: US2025084507A1
This hydrogen storage alloy has a composition represented by a general formula Ti1FexMnyNbz (0.804
Resumen de: US2025084544A1
A solid oxide cell according to an embodiment includes: a fuel electrode and an air electrode that face each other; and an electrolyte electrode that is disposed between the fuel electrode and the air electrode. The fuel electrode has a plate shape, an edge of the fuel electrode is rounded along a thickness direction of the fuel electrode, the fuel electrode includes a central layer and an outer layer disposed on both sides of the central layer, and a first porosity, which is a porosity of the central layer of the fuel electrode, is smaller than a second porosity, which is a porosity of the outer layer of the fuel electrode.
Resumen de: US2025084547A1
An electrode 10 includes, as a catalyst, an alloy including three or more base metal elements, in which the three or more base metal elements are nearly equal in atomic composition proportion, and form a solid solution. Also, an electrode 12 includes: a carbon fiber; and a catalyst including a base metal, at least a part of elements of the catalyst being chemically bonded to the carbon fiber. Further, the water electrolyzer includes an anode, a cathode, and a solid polymer electrolyte membrane provided between the anode and the cathode. The anode is the electrode 10, and/or the cathode is the electrode 12.
Resumen de: US2025084548A1
Present invention relates to a novel method of preparing a diaphragm.
Resumen de: US2025083571A1
A thermal management system for a vehicle having a fuel cell stack includes a condenser fluidly coupled to the fuel cell stack to receive a flow of water/air exhaust therefrom, and a liquid-gas separator fluidly coupled to the condenser to receive the flow of water/air exhaust therefrom, the liquid-gas separator including a first outlet to direct separated gas to an exhaust line, and a second outlet for separated liquid water. The spray nozzles are fluidly coupled to the separator second outlet to receive a flow of liquid water therefrom, and a coolant circuit is configured to circulate a coolant to the fuel cell stack for cooling thereof, the coolant circuit including a radiator configured to cool the coolant. The one or more spray nozzles are configured to selectively spray the liquid water onto the radiator to increase cooling of the coolant and improve performance of the fuel cell stack.
Resumen de: US2025087710A1
The invention relates to an arrangement, in particular an arrangement for a fuel cell device, of a plurality of flat components arranged on top of one another in an arrangement direction, wherein at least one flat component of the plurality of flat components has at least one adjustment mark, and the adjustment mark can also be detected by a detection means, in particular an optical detection means, even when at least one further flat component is arranged in the arrangement direction on top of the flat component marked with this adjustment mark.
Resumen de: US2025087713A1
A carrier structure for electrodes of a fuel cell. The structure has a duct wall and a tubular ducting volume. The duct wall forms the tubular ducting volume and includes an outer surface facing a surrounding and an inner surface facing the tubular ducting volume. The tubular ducting volume conducts a first supply flow comprising an oxidant. The duct wall provides a second supply flow within the duct wall, the second supply flow being a reductant. The duct wall separates the first supply flow in the tubular ducting volume from the second supply flow within the duct wall and the surrounding of the carrier structure. A primary power coating layer is applied on the inner surface of the duct wall, arranged between the first supply flow and the second supply flow. The coating layer generates electrical energy from the first supply flow and the second supply flow.
Resumen de: US2025087711A1
Electrochemical cell systems (51) and electrochemical cell processes are described as applicable to power generation or electrolysis modes with systems that have a containment vessel interior space multiple electrochemical cell stack, stack inlet plenum (43) that can accommodate thermal expansion and contraction in an economical way and that can provide a substantially equivalent environment for each stack inlet as well as can include, if desired, either or all of a vessel external compression stack mount possibly configured as a cathode outlet manifold (111) configured as a stack mount, a fully accommodative thermal expansion-contraction electrochemical cell stack mount possibly configured with external springs (91), and even the possibility of an axial flow adjuster such as a gradation plate (99) for better operation.
Resumen de: US2025087712A1
The present disclosure provides a bipolar plate and a current collector plate of a flow battery. The bipolar plate or the current collector plate includes a support layer, wherein the support layer includes a first surface in contact with an electrode and a second surface opposite thereto; the support layer is provided with holes passing through the first surface and the second surface; the holes are provided with a conductive filler therein; the first surface is provided with a first region and a second region, the first region surrounds all of the holes, and the second region is the remaining region of the first surface; the second surface is provided with a third region and a fourth region, the third region surrounds all of the holes, and the fourth region is the remaining region of the second surface; and the first region has a resistivity less than that of the second region. In the present disclosure, on the basis of ensuring the physical strength of the bipolar plate or current collector plate, optimization has been carried out to greatly improve the corrosion resistance and electrical performance.
Resumen de: US2025087708A1
The present invention provides a process for making a membrane electrode assembly (MEA) through a catalyst coated membrane (CCM) with phosphoric acid doped polymer electrolyte membrane. The polymer electrolyte membranes are composed of cationic-biphosphate ion pairs, with low acid content. The CCMs can be obtained either by direct coating on a membrane or to a transfer decal in a single step. The decal transfer is completed under mild temperature and pressure holds and show complete transfer of catalyst.
Resumen de: US2025087709A1
An electrode for use in a redox-flow battery system, wherein the electrode comprises a carbon fiber and a void, and a median diameter of the electrode based on pore volume determined by mercury porosimetry is at least 1.025 times a modal diameter of the electrode determined by mercury porosimetry.
Resumen de: US2025087726A1
A humidifier for humidifying a dry cathode supply air via a moist cathode exhaust air in a fuel cell system is disclosed. The humidifier may include a housing, a membrane stack, two opposing sealing plates, and a support frame. The membrane stack may be arranged in and insertable into the housing interior in a longitudinal direction. Two opposing side surfaces of the membrane stack may be hermetically sealed. Dry cathode supply air in a supply air flow path and moist cathode exhaust air in an exhaust air flow path may be flowable through the membrane stack free of mixing. The two sealing plates may each be connected to an associated side surface of the membrane stack and may contact the housing in a sealing manner such that two air chambers are separated in an airtight manner transversely to a circulation direction extending around the longitudinal direction.
Resumen de: US2025087728A1
The invention relates to a method for operating a fuel cell system (1), comprising a fuel cell stack (2), in which method anode gas coming from the fuel cell stack (2) is recirculated via an anode circuit (3) using an electrical recirculation pump (4) integrated in the anode circuit (3), wherein liquid water contained in the recirculated anode gas is separated using a water separator (5) integrated in the anode circuit (3), and wherein water separated using the water separator (5) is collected in a container (6) which is emptied periodically by opening an electromagnetically actuatable drain valve (7). According to the invention, the drive power of the recirculation pump (4) is monitored and, if a sudden increase in drive power is detected, the drain valve (7) is opened.The invention also relates to a control device (8) for carrying out steps of the method according to the invention.
Resumen de: US2025087732A1
A method and system for reducing temperature peaks during start-up of a fuel cell with a two-phase cooling system, the method including setting a saturation pressure of a coolant, via a pressure controller, to a first saturation pressure such that a maximum temperature of a coolant induced by boiling delay is below a maximum operating temperature of the fuel cell, starting the fuel cell, in response to the maximum temperature of the coolant induced by boiling delay being exceeded, setting the saturation pressure of the coolant, via the pressure controller, to a second saturation pressure, wherein the second saturation pressure is higher than the first saturation pressure.
Resumen de: US2025087730A1
A flow battery cell comprises a slurry containing solid active materials and an electrolytic solution; a negative-electrode chamber for supplying the slurry; a positive-electrode chamber for supplying air; and a solution-feed controlling unit configured to change a rate of supply of the slurry.
Resumen de: US2025087727A1
A device for an anode gas recirculation in a fuel cell system includes a blower, an outer housing defining the blower, a condensate drain channel, a receiving element arranged at the outer housing, and a drain valve arranged in the receiving element. The blower incudes a rotor wheel, a delivery channel, an electric motor having a drive shaft to which the rotor wheel is attached, and a cooling channel through which an anode gas flows. The delivery channel extends from a delivery channel inlet to a delivery channel outlet. The cooling channel at least partially surrounds the electric motor of the blower. The condensate drain channel extends below the cooling channel in the outer housing. The cooling channel is fluidically connected to the condensate drain channel. The condensate drain channel is opened and closed by the drain valve so that a liquid can be drained from the condensate drain channel.
Resumen de: US2025087733A1
Provided is a method and a system for accelerated life testing (ALT) of a proton exchange membrane fuel cell (PEMFC). In the present disclosure, a collected voltage-time sequence data of the PEMFC is filtered and subjected to empirical mode decomposition (EMD), such that a voltage data is decomposed to obtain K intrinsic mode functions. A constructed bidirectional long short-term memory-based artificial neural network (BiLSTM) shows majority input characteristics and can model each of the intrinsic mode functions independently, thereby reducing a difficulty of long-cycle life prediction in limited training data scenarios. In addition, optimal parameters of the BiLSTM are optimized through a sparrow search algorithm, which greatly improves a prediction accuracy of a remaining useful life for the PEMFC. The method and the system of the present disclosure exhibit low computing cost, simple parameter setting, and high prediction accuracy, and are extremely suitable for operation and maintenance of the PEMFC.
Resumen de: US2025087735A1
A metal-air flow battery recharging unit, comprising: a first layer defining a first flow path; a positive electrode facing the first flow path; a second layer defining a second flow path; a negative electrode facing the second flow path; a separator separating the first flow path and the second flow path from each other; a positive electrode liquid flowing through the first flow path; a negative electrode liquid flowing through the second flow path; and a control unit configured to vary a flow rate of the negative electrode liquid in the second flow path.
Resumen de: US2025087716A1
A thermal management system for a vehicle having a fuel cell stack includes a condenser fluidly coupled to the fuel cell stack to receive a flow of water/air exhaust therefrom, and a liquid-gas separator fluidly coupled to the condenser to receive the flow of water/air exhaust therefrom. A storage reservoir includes an inlet to receive separated liquid water from the liquid-gas separator. One or more spray nozzles are fluidly coupled to the storage reservoir supply outlet to receive a flow of liquid water therefrom, and a coolant circuit is configured to circulate a coolant to the fuel cell stack for cooling thereof, the coolant circuit including a radiator configured to cool the coolant. The one or more spray nozzles are configured to selectively spray the liquid water onto the radiator to increase cooling of the coolant and improve performance of the fuel cell stack.
Resumen de: US2025087775A1
Disclosed are a flow battery degassing device, a degassing method, a system, and a storage medium. The flow battery includes a liquid tank. The flow battery degassing device includes a degassing tank, a degassing pump, a liquid outlet pipe, and a liquid inlet pipe. The liquid outlet pipe is configured to enable an electrolyte in the liquid tank to flow into the degassing tank. The liquid inlet pipe is configured to enable the electrolyte in the degassing tank to flow into the liquid tank. The degassing pump is provided on the liquid inlet pipe and configured to form a vacuum environment in the degassing tank.
Resumen de: US2025087729A1
A metal-air flow battery charging cell comprises a first layer including a first flow path formed therein; a positive electrode facing the first flow path; a second layer including a second flow path formed therein; a negative electrode facing the second flow path; a separator configured to separate the first flow path and the second flow path from each other; a positive-electrode liquid that flows in the first flow path, the positive-electrode liquid having a first viscosity; and a negative-electrode liquid that flows in the second flow path, the negative-electrode liquid having a second viscosity that is higher than the first viscosity.
Nº publicación: US2025087725A1 13/03/2025
Solicitante:
ROBERT BOSCH GMBH [DE]
Robert Bosch GmbH
Resumen de: US2025087725A1
The invention relates to a method for operating a fuel cell system (1) in which anode gas emerging from a fuel cell stack (2) is recirculated via an anode circuit (3) by means of an electrically operated hydrogen blower (4) that is integrated into the anode circuit (3), and in which nitrogen-enriched anode gas is intermittently discharged by selectively opening a purge valve (5) that is integrated into the anode circuit (3). According to the invention, the method comprises the following steps:measuring the temperature at at least one temperature measurement point (6), said temperature being representative of the temperature of the hydrogen blower (4),comparing the measured temperature with a predefined threshold value, andswitching to a more hydrogen-rich operation of the fuel cell system (1) if the threshold value is overshot.The invention furthermore relates to a control unit (8) for carrying out the steps of the method according to the invention.
BOPI
Sede Electrónica
