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363
resultados
Última actualización
19/10/2024 [06:48:00]
Resultados 25 a 50 de 363
Resumen de: US2024344216A1
The disclosure pertains to catalyst sheet, in particular for a Proton Exchange Membrane Water Electrolyzer or Anion Exchange Membrane Water Electrolyzer, comprising a substrate sheet and a deposited catalyst material, wherein the substrate sheet is porous and electrically conductive; and to an electrolyzer comprising such a catalyst sheet, a hydrogen production method, and a manufacturing method.
Resumen de: US2024344213A1
A solid oxide electrolyser cell system includes an electrolysis stack comprising an anode, a cathode and a solid-oxide electrolyte. The anode comprises an anode inlet. The system comprises a sweep gas supply for supplying a sweep gas to the anode via the anode inlet, and a sweep gas supply flow path defining a flow path between the sweep gas supply and the anode inlet. The system comprises a first heat exchanger in communication with the sweep gas supply flow path. The first heat exchanger communicates with a stream having a source external to the system and defining an external stream flow path. The first heat exchanger exchanges heat between the sweep gas supply flow path and the external stream flow path. An example method of operating such a system includes exchanging heat between the external stream flow path and the sweep gas supply flow path through the first heat exchanger.
Resumen de: US2024343953A1
Provided is an adhesive having high adhesive capacity even in the high temperature water, a fuel cell having the adhesive, and a method for manufacturing the fuel cell. An adhesive includes a base polymer, a tackifier, and an acid modified polypropylene. The acid modified polypropylene is at least one of the acid modified polypropylene selected from maleic anhydride-modified polypropylene and maleic acid-modified polypropylene. A mass ratio of the acid modified polypropylene to the base polymer (acid modified polypropylene/base polymer) is 0.1 or more.
Resumen de: US2024343665A1
The present disclosure relates to cross-linked polyelectrolytes comprising polyelectrolyte, and composite materials comprising said cross-linked polyelectrolytes. The present disclosure further relates to membrane electrode assemblies comprising the cross-linked polyelectrolytes and composites of the disclosure, and electrochemical devices comprising the disclosed membrane electrode assemblies.
Resumen de: US2024343563A1
A system comprising a first reactor, a second reactor fluidly connected with the first reactor, and a liquid-solid separator fluidly connected with the second reactor. The first reactor is operable to produce an aqueous bicarbonate solution from captured carbon dioxide (CO2), and an aqueous alkaline solution. The second reactor is configured to produce hydrogen gas and a mixture comprising metal carbonate agglomerates by contacting the aqueous bicarbonate solution from the first reactor with zero-valent metal particulates. The metal carbonate agglomerates comprise a carbonate of the metal on a surface of the zero-valent metal particulates, and the zero-valent metal particulates comprise a zero-valent metal. The liquid-solid separator is configured to receive the mixture from the second reactor and separate the metal carbonate agglomerates from a recovered aqueous alkaline solution.
Resumen de: US2024343564A1
A process for obtaining hydrogen from methanol or ammonia, for fuel cell operation, for example, wherein methanol or ammonia is subjected to evaporation in a first step and in a second step to reforming to give a hydrogen-containing gas mixture, in a third step hydrogen is removed from this gas mixture in a membrane process at a temperature of 300 to 600° C. and in a fourth step the gaseous retentate from the membrane process is burned with ambient air, wherein the second step is a process step upstream of and separate from the third step and the combustion gases are routed via at least two different heat exchangers to provide (i) first the reaction heat for reforming the methanol or ammonia and (ii) then the evaporation heat for evaporating the reformer feed, wherein the permeate from the membrane process preheats the ambient air for the burner in a heat exchanger
Resumen de: US2024347283A1
A flexible energy storage device with a glycerol-based gel electrolyte is provided. The flexible energy storage device can include a pair of electrodes separated by the gel electrolyte. The electrolytes can be in gel form, bendable and stretchable in a device. The gel electrolyte can include glycerol, redox-active molybdenum-containing ions, and a secondary ionic substance. The secondary ionic substance can include a salt. The gel electrolyte can have a density of 1.4 to 1.9 g/cm3 and an ionic conductivity of 2.3×10−4 to 3.2×10−4 Scm−1. The flexible energy storage device may retain greater than 95% of an unbent energy storage capacity when bent at an angle of 10 to 170°.
Resumen de: US2024347421A1
A processing unit includes a substrate, an electrical load, and a microfluidic volume. The electrical load is supported by the first surface of the substrate, and the microfluidic volume is positioned in the second surface of the substrate. The processing unit includes a first electrode positioned in the microfluidic volume and a second electrode positioned in the microfluidic volume. A first TSV connects the first electrode to the electrical load, and a second TSV connects the second electrode to the electrical load. An electrochemical fluid is positioned in the microfluidic volume to provide electrical power to the electrical load and receive heat from the electrical load.
Resumen de: US2024348054A1
An electrolyzer system is provided for supporting stability of the power grid by three modes. In a first mode, the consumption is regulated in the direction of stabilizing the grid. In a second mode, an electrical capacitor effect of the electrolyzer is used with quick discharge temporarily in reverse for counteracting short-time power deviations in the power grid. In a third mode, the electrolyzer shifts to a short-term fuel cell mode consuming the gases at the electrodes. For example, all three modes are triggered, one after the other.
Resumen de: US2024347818A1
A passivity-based power distribution control system for a hybrid electric vehicle includes a proton-exchange membrane fuel cell module, a battery module, an ultra-capacitor module, an energy management controller, and a duty cycle controller. The proton-exchange membrane fuel cell module includes a proton-exchange membrane fuel cell (PEMFC) and a PEMFC boost converter. The PEMFC module generates a PEMFC current IFC. The battery module includes a battery and a battery buck/boost converter. The battery module generates a battery current Ib. The ultra-capacitor module includes an ultra-capacitor (UC) and a UC buck/boost converter. The UC module generates a UC current IUC. The duty cycle controller controls a PEMFC duty cycle D1 of the PEMFC boost converter, a battery duty cycle D23 of the battery buck/boost converter, and a UC duty cycle D45 of the UC buck/boost converter.
Resumen de: US2024347750A1
A control system for operating a modular arrangement of electrolysis cells under variable input voltage conditions, such as those from renewable energy sources, to optimize operation by reducing under and over potential of cells. Energy supply and electrolyte flow to cells or groups of cells is interrupted or resumed in response to available electrical potential and the optimal electrical potential required by active cells.
Resumen de: US2024347748A1
A device for diagnosing a valve failure of a fuel cell system is capable of accurately and quickly determining whether an integrated valve in a fuel cell system is operated abnormally. and preventing problems caused by the operation abnormality of the integrated valve.
Resumen de: US2024347747A1
A control device of a fuel cell system determines opening-closing abnormality of a first valve and a second valve based on a comparison between a first pressure decrease rate and a second pressure decrease rate, the first pressure decrease rate being a decrease rate of a pressure detection value of a pressure sensor when a first control is executed, the first control being a control in which the first valve is opened in a state where the second valve is closed, the second pressure decrease rate being a decrease rate of the pressure detection value of the pressure sensor when a second control is executed, the second control being a control in which the second valve is opened in a state where the first valve is closed.
Resumen de: US2024132380A1
An electrochemical device including at least one of a carbonaceous cathode, and at least one of a metal-containing anode. A separation distance between the carbonaceous cathode and the metal-containing anode is about 1 to about 5000 micrometers.
Resumen de: AU2022434711A1
The invention relates to a membrane electrode arrangement (1) comprising a cation exchange membrane (3) arranged in a cell (2) between an anode (5) and a cathode (4), which has a respective catalyst layer on the anode side and cathode side, wherein the cell (2) has a low molecular buffer (7) with at least one alkali-metal cation. The cationic concentration of the buffer solution (7) is <1mmol. The invention also relates to a use of a low molecular buffer (7) with at least one alkali-metal cation for water electrolysis, and a device comprising the membrane electrode arrangement (1).
Resumen de: EP4446424A2
Briefly, a sensor for a continuous biological monitor is provided for measuring the level of a target analyte for a patient. The sensor has a working wire and a reference wire, where the working wire has an analyte limiting layer that passes more than 1 in 1000 analyte molecules from the patient to an enzyme layer. The enzyme layer has an enzyme entrapped in a polyurethane cross-linked with acrylic polyol. As free electrons are generated, a conductor transfers the electrons to the biological monitor. In some cases, the sensor may be constructed without the use of any expensive platinum.
Resumen de: EP4445994A2
Disclosed is a membrane humidifier for a fuel cell, which can prevent, without a separate gas filtering device, performance deterioration of a fuel cell due to harmful gases during a humidifying process. The membrane humidifier (100) for a fuel cell according to the present invention comprises:a housing unit comprising a first fluid inlet (121) for introduction of a first fluid, a first fluid outlet (122) for discharge of the first fluid, a second fluid inlet (112) for introduction of a second fluid, and a second fluid outlet (113) for discharge of the second fluid, humidity of the first fluid introduced through the first fluid inlet (121) being lower than humidity of the second fluid introduced through the second fluid inlet (112);a plurality of hollow fiber membranes (160) disposed inside the housing unit in such a way that moisture exchange between the first fluid flowing along lumens of the hollow fiber membranes (160) and the second fluid flowing outside the hollow fiber membranes (160) occurs; anda first gas filter (250) provided in the housing unit, the gas filter being configured to capture harmful gas included in the first fluid, the harmful gas comprising nitrogen oxide (NO<sub>x</sub>), sulfur oxide (SO<sub>x</sub>), ammonia (NH<sub>3</sub>), or a mixture of two or more thereof,wherein the first gas filter (250) comprises:a first filter portion; anda first frame portion (255) coupled to the first filter portion in such a way as t
Resumen de: EP4446228A1
A power generation system (10) for an aircraft (100), the power generation system comprising: a storage tank (12) for storing hydrogen; a fuel cell (14) configured to generate power from the hydrogen; a fuel supply line (16) configured to supply the hydrogen from storage tank to the fuel cell; a fresh air supply line (18) configured to supply air to a cabin air supply system (22); and a fuel-air heat exchange system (24), wherein the fuel supply line and the air supply line pass through the fuel-air heat exchange system such that the hydrogen cools the air in use.
Resumen de: EP4446227A1
There is provided an air processing system (20) for an aircraft (10) comprising a hydrogen fuel cell (45). The air processing system comprises an input airflow (19); a first (21) and a second compressor (25), wherein each compressor is configured to compress the airflow in a compression stage; a first (29) and a second turbine (31), wherein each turbine is configured to decompress the airflow in a decompression stage; and a first (35) and a second shaft (37) each configured to independently rotate. Each shaft mechanically couples one of the compressors and one of the turbines, such that torque can be transferred between the compressor-turbine pair.
Resumen de: GB2628992A
An aircraft propulsion arrangement, comprising a cryogenic source 210, comprising a cryogenic resource, such as liquid hydrogen, which is used to provide a heat exchanger function in a heat exchanger 222, 224, and is then used to function as a fuel for a fuel cell 230. In some embodiments, there is a first, passive heat exchanger 222, comprising a second cryogenic resource, and a second, active heat exchanger 224. The second cryogenic resource may be an inert fluid, with a boiling point lower than that of the first cryogenic resource, such as helium.
Resumen de: CN118077073A
The invention relates to a method for embossing a channel structure (3) comprising a plurality of parallel channel sections (5) in a flat metal sheet (11) to form half-plates (2, 3), the invention relates to a method for forming a half-plate (2, 2 '), in particular a bipolar plate (1) for an electrochemical cell, comprising the following steps: providing a planar metal sheet (11) having a uniform initial wall thickness (d5), inserting the metal sheet (11) into a forming tool (12), a base plane (BE) of the sheet (11) defined by the undeformed planar metal sheet (11) is arranged to rest on a tool plane defined by the tool portion (13) of the forming tool (12),-forming a plurality of channel portions (5), each channel portion (5) being designed to have two non-parallel sides (7, 8) such that material from the embossed portions (9, 10) of the metal sheet (11) is allowed to be displaced into the sides (7, 8),-forming a plurality of channel portions (5), each channel portion (5) being designed to have two non-parallel sides (7, 8), the embossed portions are located outside of the side surfaces and are held in the base plane (BE) and/or a plane parallel thereto throughout the forming process, each side surface (7, 8) extending from the base plane (BE) to the adjacent parallel plane.
Resumen de: CN118339682A
According to the present invention there is provided a method of making a catalyst-coated ion-conducting membrane, the method comprising the steps of: (a) providing a catalyst layer on a backing layer wherein the catalyst layer comprises pores; (b) applying a wetting solution to the catalyst layer wherein the wetting solution impregnates at least some of the pores of the catalyst layer so as to form a wetted catalyst surface; (c) depositing a first dispersion onto the wetted catalyst surface to form a first dispersion layer on the wetted catalyst surface, wherein the first dispersion comprises an ionically conductive polymer; and (d) drying the first dispersion layer and the wetted catalyst surface after step (c).
Resumen de: CN118339685A
According to the present invention, there is provided a method of manufacturing an ion conductive membrane. The method comprises the following steps: (a) providing a substrate; (b) depositing a first dispersion onto the substrate to form a first layer, wherein the first dispersion comprises an ion conducting polymer; (c) depositing a second dispersion onto the first dispersion to form a second layer on the first layer, wherein the second dispersion comprises an ion conductive polymer; (d) providing a reinforcing component comprising pores such that the second dispersion impregnates at least some of the pores of the reinforcing component; and (e) drying the first layer and the second layer, wherein step (e) is performed after steps (c) and (d).
Resumen de: CA3240207A1
A cryogenic fuel tank system includes a fuel tank configured to contain a cryogenic liquid with a headspace above the cryogenic liquid configured to contain cryogenic vapor. A fuel cell converts cryogenic vapor from the headspace to electricity and water vapor. A vent valve directs excess cryogenic vapor from the headspace to the fuel cell when a pressure in the fuel tank exceeds a predetermined pressure level.
Nº publicación: EP4445440A1 16/10/2024
Solicitante:
UOP LLC [US]
UOP LLC
Resumen de: CN118435401A
Various current collectors for redox flow batteries are described. These current collectors include at least one metal plate encapsulated in an electrically conductive polymer end plate, a metal plate to the back side of the stack end plate with an electrically conductive adhesive, and a flat metal plate with deformable tabs. Flow battery systems incorporating these current collectors are also described. Flow battery systems with easily replaceable current collectors are also described.
BOPI
Sede Electrónica
