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527
results.
Updated on
09/02/2026 [06:47:00]
Results 350 to 375 of 527
Absstract of: WO2026020846A1
A Pt-Cu hydrogel enzyme-free electrochemical sensor for glucose, and a preparation method therefor and the use thereof. The preparation method comprises: (1) preparation of a Pt-Cu hydrogel, involving: dissolving H2PtCl6 and CuCl2 in water to form a first solution, dissolving a weak reducing agent and sodium carbonate in water to form a second solution, mixing the first solution and the second solution to obtain a mixture, performing an ultrasonic treatment on the mixture, leaving same to stand at 60-80°C for a first period of time, then cooling the solution to room temperature, adding NaBH4, then leaving same to stand at 30-50°C for a second period of time, finally leaving same to age and stand at room temperature for at least 24 h, and then washing same to obtain the Pt-Cu hydrogel; and (2) placing the Pt-Cu hydrogel on an electrode, and immobilizing same, so as to obtain a Pt-Cu hydrogel enzyme-free electrochemical sensor for glucose. The sensor can achieve the enzyme-free detection of glucose in a neutral serum environment, with the detection range being 0-6 mM, which falls within the required linear detection range for the physiological concentration of glucose in a human body; moreover, the consumption of energy is reduced.
Absstract of: DE102024206933A1
Die Erfindung betrifft ein Verfahren (100) zum Betreiben einer Brennstoffzellenvorrichtung (10) mit zumindest einem Brennstoffzellenstack (12) aufweisend zumindest eine Brennstoffzelle (46), wobei in einem Schutzbetrieb der Brennstoffzellenvorrichtung (10) an der Brennstoffzelle (46) eine Schutzspannung angelegt wird, welche der Nernstspannung der Anode der Brennstoffzelle entgegengesetzt ist. Es wird vorgeschlagen, dass das elektrochemische Potential der Brennstoffzelle (46) einem elektrochemischen Potential in einem Normalbetrieb der Brennstoffzellenvorrichtung (10) entspricht.
Absstract of: DE102024121292A1
Die hier offenbarte Technologie betrifft erfindungsgemäß ein Verfahren zum Kontrollieren eines Drain/Purge-Ventils (25) in einem Brennstoffzellensystem (10), aufweisend die Schritte: Ermitteln eines Kontrollsignals (33) zum Kontrollieren des Drain/Purge-Ventils (25), Ermitteln einer tatsächlichen Öffnungsdauer (34) des Drain/Purge-Ventils (25), Ermitteln eines Pufferintegrals (35) einer Subtraktion der tatsächlichen Öffnungsdauer vom Kontrollsignal und Kontrollieren des Drain/Purge-Ventils (25) basierend auf dem Pufferintegral (35). Die Technologie betrifft ferner ein Brennstoffzellensystem (10), ein Fahrzeug (100) und ein Computerprogrammprodukt (40) zum Durchführen des Verfahrens sowie ein computerlesbares Speichermedium (50), auf welchem das Computerprogrammprodukt (40) gespeichert ist.
Absstract of: DE102024121243A1
Die Erfindung betrifft ein Verfahren zum Herstellen einer porösen Struktur (10), insbesondere zum Verwenden in einer Anlage für ein elektrochemisches Verfahren, bei welchem eine Oberfläche (12) der porösen Struktur (10), welche dazu vorgesehen ist, in der Anlage unmittelbar an einer Grenzschicht anzuliegen, für eine Modifizierung der Topographie der Oberfläche (12) mit einem Laserstrahl (16) bestrahlt wird.
Absstract of: DE102024120951A1
Die Erfindung betrifft eine polymerisierbare Zusammensetzung für ein Dichtelement, welches insbesondere ein Dichtelement für ein elektrochemisches System sein kann. Die polymerisierbare Zusammensetzung umfasst zumindest eine Polyisocyanatverbindung und zumindest eine polyfunktionelle Verbindung, wobei die zumindest eine Polyisocyanatverbindung und die zumindest eine polyfunktionelle Verbindung miteinander polyaddierbar sind.
Absstract of: US20260031724A1
A power source assembly for an aeronautical vehicle includes a fuel cell module configured to provide a first direct current (DC) power output, a battery module configured to provide a second DC power output, a DC electric bus configured to provide a specified DC power output to a load, a multi-phase DC/DC converter including a plurality of converter units, and a controller operably coupled to the multi-phase DC/DC converter. The multi-phase DC/DC converter is configured to receive the first DC power output and the second DC power output and to provide the specified DC power output to the DC electric bus. The controller is configured to receive data indicative of the first DC power output and to control the plurality of converter units of the multi-phase DC/DC converter based on the received data to maintain the specified DC power output to the load.
Absstract of: WO2026022491A1
The present invention provides a proton exchange membrane fuel cell anode catalyst layer comprising a hydrogen oxidation reaction catalyst, an ion-conducting material, and an oxygen evolution reaction catalyst; wherein the oxygen evolution reaction catalyst is an oxide material comprising iridium and ruthenium; and wherein loading of iridium is 0.02 mg/cm2 of the geometric area of the anode catalyst layer or less.
Absstract of: DE102024121081A1
Die Erfindung betrifft eine Dichtungsanordnung (10) für eine Brennstoffzelle (20) mit einer Trägerplatte (1) und einem auf einer Seite (1.1) der Trägerplatte (1) angeordneten Dichtabschnitt (2) zur Begrenzung eines entlang der Trägerplatte (1) strömenden Mediums, wobei auf der dem Dichtabschnitt (2) gegenüberliegenden Seite (1.2) der Trägerplatte (1) ein Gegenabschnitt (3) angeordnet ist, wobei die Trägerplatte (1) zumindest eine die eine Seite (1.1) mit der anderen Seite (1.2) verbindende und die Trägerplatte (1) durchgreifende Ausnehmung (1.3) aufweist und wobei der Dichtabschnitt (2) zur formschlüssigen Verbindung mit der Trägerplatte (1) durch die Ausnehmung (1.3) hindurch mit dem Gegenabschnitt (3) verbunden ist. Weiterhin betrifft die Erfindung eine Brennstoffzelle (20) sowie eine Verfahren zur Herstellung einer Dichtungsanordnung (10)
Absstract of: US20260031368A1
The present disclosure relates to a bipolar plate for an electrochemical system and an electrochemical system comprising a stacked plurality of such bipolar plates as well as a method for the production of such bipolar plates. The electrochemical system may be a fuel cell system, an electrochemical compressor, an electrolyzer, or a redox flow battery. The bipolar plate comprises a first separator plate and a second separator plate connected to each other which delimit an inner space. Each separator plate has an inner side with an inner coating and an outer side with an outer coating. Fluid guide structures are molded into an electrochemically active region of each separator plate by shaping of the respective separator plate. The inner coating extends along the electrochemically active region and has defects at least in some regions. The outer coating extends along the electrochemically active region and has a substantially uniform surface texture.
Absstract of: US20260031367A1
This carbon sheet includes at least a carbon fiber structure formed from carbon fibers, a binding agent, and graphite particles, wherein in a pore diameter distribution of the carbon sheet, the ratio of the volume of a second peak present in a region having a pore diameter of 0.5 μm to 3 μm to the volume of a first peak present in a region having a pore diameter of 20 μm to 100 μm is 0.06 to 0.50. A carbon sheet which suppresses dry-up and achieves both conductivity and retention of moisture is provided in order to exhibit high power generation performance in a solid polymer fuel cell.
Absstract of: WO2026022180A1
The invention relates to a method for producing a porous structure (10), in particular for use in a plant for an electrochemical process, in which method a surface (12) of the porous structure (10), which is intended to be in direct contact with a boundary layer in the plant, is irradiated with a laser beam (16) in order to modify the topography of the surface (12).
Absstract of: US20260031365A1
In one aspect, the disclosure relates to method of forming an electrocatalyst structure on an electrode, comprising depositing a first layer on the electrode using atomic layer deposition (ALD), wherein the first layer comprises a plurality of discrete nanoparticles of a first electrocatalyst, and depositing one or more of a second layer on the first layer and the electrode using ALD, wherein the one or more second layer comprises a second electrocatalyst, wherein the first layer and the one or more second layers, collectively, form a multi-layer electrocatalyst structure on the electrode. Also disclosed are electrodes having a multi-layer electrocatalyst structure. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Absstract of: US20260031366A1
A process for producing an ion-conducting membrane comprising a recombination catalyst-containing membrane layer. The membrane layer if fabricated from an ink comprising a stabilised dispersion of recombination catalyst nanoparticles. Also provided are ion-conducting membranes for electrochemical devices, such as fuel cells or water electrolysers, with a recombination catalyst-containing membrane layer comprising dispersed recombination catalyst nanoparticles, a nanoparticle stabilising agent, and an ion-conducting polymer.
Absstract of: US20260031380A1
Disclosed herein are a variety of systems, compositions, and methods for reversibly storing electrical energy in a redox flow battery with a unit cell potential equal to or greater than 3.0 volts (V). The system may include an electroactive redox molecule, a positive section, and a negative section. The electroactive redox molecule may comprise an anolyte moiety comprising a multi-ring conjugated system comprising at least one sulfone group, wherein an anolyte reaction occurs at a cell potential less than −1.50 V. The positive section may comprise a first metal electrode in contact with the electroactive bipolar redox molecule and a supporting electrolyte dissolved in a solvent. The negative section may comprise a second metal electrode in contact with the electroactive bipolar redox molecule and additional electrolyte dissolved in additional solvent.
Absstract of: US20260031379A1
A method of operating a fuel cell system includes vaporizing a liquid fuel in a vaporizer located in a hot box using heat generated by the fuel cell system to form a fuel vapor, and providing the fuel vapor to a stack of fuel cells located in the hot box to generate power.
Absstract of: US20260031381A1
An electrolyte solution including a redox active species and a buffer is described. The concentration of both the redox active species and the buffer in the electrolyte solution is greater than 0.4 M. The pH of the electrolyte solution is in the range of from 5 to 11. In some embodiments of the electrolyte solution, the concentration of the buffer is equal to or greater than the concentration of the redox active species.
Absstract of: US20260031378A1
A fuel battery module includes a container, a fuel battery, a combustion unit, and a first reactor. The fuel battery supplies unreacted fuel to the combustion unit along a flow path for an exhaust gas containing the unreacted fuel. The combustion unit combusts the unreacted fuel. The first reactor is positioned opposite the combustion unit. The first reactor produces at least hydrogen and a dehydrogenation product from an organic hydride through a dehydrogenation reaction.
Absstract of: WO2026022793A1
An electrochemical device, including: a rotating assembly, including: a membrane electrode assembly (MEA) having an anode, a cathode, and a membrane disposed between the anode and the cathode and separating the anode from the cathode, and an outer casing located around the MEA; and a shaft coupled to the rotating assembly and configured to rotate the rotating assembly via rotation of the shaft, wherein the shaft extends through the rotating assembly and includes a first port formed therethrough, wherein the first port is at least part of a flow path configured to introduce liquid into the rotating assembly.
Absstract of: WO2026021957A1
The present invention relates to a bipolar plate (100) for a fuel cell device, comprising: at least one bipolar plate layer (102), on which there are provided a plurality of flow channels (104), in particular adjacently arranged, flow channels, along which a fluid medium, in particular an operating gas of the fuel cell device, can be passed along a flow direction (106), wherein multiple flow channels (104), preferably all the flow channels, have channel depths (116) which vary along the flow direction (106), wherein each flow channel (104) with a varying channel depth (116) has a plurality of first and second regions (118, 120), the first regions (118) having a first channel depth (122) and the second regions (120) having a second channel depth (124), and the first and the second regions (118, 120) are provided in alternating sequence along the flow direction (106), and wherein the second channel depths (124) in the second regions (120) decrease along the flow direction (106).
Absstract of: US20260031369A1
A fuel cell stack may include a cell part including fuel cells stacked in a stacking direction, wherein each fuel cell may include: a support frame supporting a membrane electrode and gas diffusion layer assembly; and a first separator and a second separator interposing the support frame therebetween in the stacking direction; and a sealing plate facing one of opposing end surfaces of the cell part in the stacking direction. Each fuel cell may further include through holes forming manifolds in the cell part. When viewed in the stacking direction, the sealing plate may be devoid of through holes in its area overlapping the manifolds formed in the cell part. The sealing plate may include a substrate, and at least one of a plurality of first separators and a plurality of second separators may include the same substrate except for presence of the through holes.
Absstract of: US20260031374A1
A voltage monitoring arrangement is provided for an electric cell stack including a plurality of electric plates sandwiching insulation layers, wherein the voltage monitoring arrangement is configured to monitor a voltage of at least one electric plate of the electric cell stack, wherein the voltage monitoring arrangement includes at least one voltage monitoring unit with a contact element being in contact with the at least one electric plate, a first signal line being configured to supply a first signal from a signal source to a processing unit, wherein the voltage monitoring unit includes a first signal path interrupting element interposed in the first signal line, wherein the first signal path interrupting element is connected to the contact element and is configured to forward the first signal dependent on a voltage being present at the at least one electric plate, wherein the voltage monitoring arrangement includes a support element being designed to be arranged within the electric cell stack, wherein the support element is configured to support at least the contact element.
Absstract of: US20260031375A1
A system and method for controlling operation of a fuel cell system of a fuel cell vehicle are provided. The method comprises estimating an expected duration of a shutdown of the fuel cell system; determining a time until a next freeze preparation of the fuel cell system when a hydrogen protection time at the anode side is to be extended during the shutdown; in response to determining that the expected duration of the shutdown is shorter than the time until the freeze preparation, enabling a hydrogen refill at the anode side; and, in response to determining that the expected duration of the shutdown is longer than the time until the freeze preparation, and in response to determining that power produced by the fuel cell system during a cathode oxygen depletion to be performed after the freeze preparation cannot be supplied to at least one power consumer, disabling the hydrogen refill.
Absstract of: US20260031377A1
The present invention relates to a method of supplying electricity to an electrical load including steps of providing an alkaline solution, reacting the alkaline solution with silicon so as to produce hydrogen. processing the hydrogen in a fuel cell to generate electricity, and supplying the electricity from an output of the fuel cell to the electrical load via a suitable electrical interfacing module.
Absstract of: WO2026021965A1
The present invention relates to a diagnostic method for a fuel cell, comprising the following steps: applying an excitation signal to the fuel cell, acquiring a response signal of the fuel cell; obtaining a high-frequency resistance of the fuel cell to be processed based on the excitation signal and the response signal; dividing the high-frequency resistance to be processed into a plurality of segments each having a predetermined time length, and detecting the maximum and minimum values of the high-frequency resistance to be processed within each segment; when the range between the maximum and minimum values does not exceed a predetermined threshold, calculating an output value between the maximum and minimum values based on the high-frequency resistance to be processed, and using the output value as the target high-frequency resistance. The humidity level inside the fuel cell is evaluated based on the target high-frequency resistance. The present disclosure further relates to a program product and a fuel cell system. Stable and accurate diagnostic results for the fuel cell can be obtained, thereby avoiding undesired fault misdiagnosis and improving the operational performance of the fuel cell.
Nº publicación: WO2026021963A1 29/01/2026
Applicant:
EKPO FUEL CELL TECH GMBH [DE]
EKPO FUEL CELL TECHNOLOGIES GMBH
Absstract of: WO2026021963A1
The invention relates to a sealing assembly (10) for a fuel cell (20), having a support plate (1) and a sealing portion (2) provided on one face (1.1) of the support plate (1) for limiting a medium flowing along the support plate (1). A counter portion (3) is provided on the face (1.2) of the support plate (1) opposite the sealing portion (2). The support plate (1) has at least one cutout (1.3) which connects one face (1.1) to the other face (1.2) and passes through the support plate (1), and the sealing portion (2) is connected to the counter portion (3) so as to interlockingly engage with the support plate (1) through the cutout (1.3). The invention further relates to a fuel cell (20) and to a method for producing a sealing assembly (10).
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