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388
results.
Updated on
14/09/2026 [06:49:00]
Results 275 to 300 of 388
Absstract of: DE102025000751A1
Die vorliegende Entwicklung betrifft einen thermischen Kreislauf (40) für eine Kraftfahrzeugbrennstoffzelle (20) umfassend, eine mit einer Brennstoffzelle (20) thermisch gekoppelte und von einem Fluid durchströmbare Fluidleitung (41) sowie einen mit einem thermischen Reservoir (60) koppelbaren Wärmetauscher (50), welcher mit der Fluidleitung (41) thermisch gekoppelt und dazu ausgestaltet ist, zur Temperierung der Brennstoffzelle (20) in einem Standby-Betrieb, thermische Energie vom thermischen Reservoir (60) an das durch die Fluidleitung (41) strömende Fluid zu übertragen.
Absstract of: WO2026182638A1
The invention relates to the field of electrochemical energy generation, and more particularly to energy storage systems comprising chemical power sources based on metal-sulfur batteries with a flowing electrolyte. The technical result of the invention consists in increasing the energy density and service life of a metal-sulfur flow battery. A metal-sulfur flow battery comprises separate anolyte and catholyte containers, and at least one electrochemical cell having two electrode frames, wherein a cathode and an anode having external terminals are fastened to the outer surface of said frames, a cation-conducting membrane is fastened between the inner surfaces of the frames such that a zero gap is formed between the anode and the cathode, and the interior of the frames is filled with an anolyte and a catholyte, the containers being designed to be capable of providing to the interior of the frames a supply of a non-aqueous electrolyte containing at least one salt of a metal selected from the group consisting of Li, Na, K, Mg, Ca, Ba, Zn, dissolved in a single-component or binary aprotic solvent, to which graphene oxide is added.
Absstract of: WO2026182096A1
Provided is a work machine capable of efficiently replacing a hydrogen tank in a short time. A work machine comprises: a fuel cell module (30) which is a power source using hydrogen; a hydrogen tank (21) from which hydrogen is supplied to the fuel cell module (30); a flow path (40) for hydrogen from the hydrogen tank (21) to the fuel cell module (30); and a joint (50) which is provided to the flow path (40). The joint (50) has a plug (52) and a socket (51), and is configured so that the plug (52) and the socket (51) can be connected by inserting the plug (52) into the socket (51). The work machine further comprises a pressure-reducing valve (60) for reducing the pressure inside the flow path (40).
Absstract of: US20260260923A1
0000 An electrochemical system includes an electrochemical stack, a top endplate, a bottom endplate, and a tie rod spring assembly. The electrochemical stack is arranged between the top endplate and the bottom endplate. The tie rod spring assembly is configured to allow one or more components of the electrochemical stack to expand during use of the electrochemical stack.
Absstract of: WO2025017297A1
There is provided a method of preparing an ion-conducting membrane layer for a fuel cell or an electrolyser. The method comprises the steps of: (i) providing a donor substrate having opposing first and second surfaces and providing an ink disposed as a layer on the second surface, wherein the ink comprises a radiation absorber, an ion-conducting polymer, and a solvent; (ii) providing an acceptor substrate, wherein the second surface of the donor substrate faces towards the acceptor substrate; and (iii) irradiating the ink with laser radiation at a wavelength which is absorbed by the radiation absorber so as to transfer the ink from the donor substrate to the acceptor substrate.
Absstract of: WO2025002942A1
The present invention relates to a method for recycling a membrane electrode assembly from a fuel cell or a reformer. Further, the present invention relates to a polymer or a polymer solution obtained from the method according to the invention and to the use of the obtained polymer or polymer solution.
Absstract of: US20260260922A1
An electrical power source that includes two flow batteries, which are held at different temperatures from one another and the potential difference of which can be tapped as useful voltage. Electrolyte liquids are conducted comprehensively across the two flow batteries. A heat store is additionally incorporated into the energy source and the electrolyte liquids are conducted through the heat store so that they have their respective temperatures on the input side of the respective flow batteries. The heat store is held in the upper region at the higher of the two temperatures by feed elements arranged in the upper region and in the lower region at the lower of the two temperatures by feed elements arranged in the lower region. The temperature profile therebetween is established in accordance with the state of charge of the heat store.
Absstract of: WO2026181858A1
The present invention provides: a cathode catalyst preferably used in a solid polymer fuel cell; and a cathode layer using said cathode catalyst. The cathode catalyst layer is provided with a cathode catalyst and an ionomer. The cathode catalyst includes: a catalyst carrier in which a catalyst is carried on porous carbon carrier particles; and carbon particles not carrying the catalyst. The average particle diameter of the carbon particles not carrying the catalyst is 1/2 or less, and the external surface area of the carbon particles not carrying the catalyst is 500 m2/g or more.
Absstract of: US20260258202A1
Described herein are fluorene-free or low-fluorine content ionomeric polymers with a hydrocarbon backbone and pendant phosphonic acid and sulfonic acid/sulfonimide groups. The polymers are useful as, e.g., high temperature polymer electrolyte membranes (HT-PEMs) for fuel cells, which do not require imbibed liquid acid in the membrane, as electrode binders (e.g., for fuel cell electrodes; as components of supercapacitors, and as membranes for waste heat recovery systems, and as membranes for hydrogen pumps for hydrogen separation. The HT-PEMs described herein can operate under hot (130 to 220° C.), dry conditions.
Absstract of: WO2026180694A1
A method of controlling an electrochemical cell system is disclosed, the electrochemical cell system comprising a first fluid inlet, a first fluid outlet, a second fluid inlet, and a second fluid outlet The the control method comprises: determining a temperature at the first fluid outlet, determining a temperature at the second fluid outlet, determining a flow rate condition (Q); and for a range of flow rate conditions: calculating a control temperature which is a function of: the first fluid outlet temperature (To); the second fluid outlet temperature (Tf); and the flow rate condition (Q). The method further comprises controlling the electrochemical cell system based on said calculated control temperature.
Absstract of: WO2026180378A1
The invention relates to a porous metal panel arrangement (2a-e), wherein the porous metal panel arrangement (2a-e) comprises a first porous metal panel (4) having a connection edge (6) and a second porous metal panel (8) having a connection edge (10), According to the invention, the connection edge (6) of the first porous metal panel (4) is joined with the connection edge (10) of the second porous metal panel (8) so as to form the porous metal panel arrangement (2a-e) from the first and second porous metal panel (4, 8).
Absstract of: US20260261226A1
0000 When providing alternating current (AC) power to operate AC powered devices such as power tools (such as drills, table saws, miter saws), equipment (such as lawn mowers), and consumer products (such as refrigerators, television, lights) without being tied to a fixed utility power supply typically requires a generator (such as an internal combustion engine based generator) or a battery powered inverter. In order to meet power and runtime needs for these devices, a battery powered inverter must be relatively large and expensive. This simple fact prohibits their use in many environments.
Absstract of: EP4800287A2
To enable a hydrogen tank to be efficiently filled with hydrogen even when the hydrogen tank has a large capacity, hydrogen filling at the nozzle flow is prohibited when the nozzle flow of a nozzle is larger than the receptacle flow of a receptacle or when the receptacle flow is unknown under the condition that the nozzle and the receptacle can be connected to each other.
Absstract of: EP4800159A1
0001 The present invention relates to a process to react a gaseous reactant as well as a device to implement such.
Absstract of: WO2025088334A1
There is provided an apparatus for applying adhesive onto a substrate. The substrate is a component for a fuel cell or an electrolyser. The apparatus comprises: an adhesive dispensing unit comprising a first dispensing nozzle positioned to dispense adhesive in a first fixed locality and a second dispensing nozzle positioned to dispense adhesive in a second fixed locality; and a carrier comprising a substrate receiving area, wherein the carrier is movable in a machine direction so that a first portion of the substrate receiving area can pass through the first fixed locality and a second portion of the substrate receiving area can pass through the second fixed locality. The adhesive dispensing unit is configured to: dispense adhesive via the first dispensing nozzle while the first portion of the substrate receiving area is moving through the first fixed locality, and dispense adhesive via the second dispensing nozzle while the second portion of the substrate receiving area is moving through the second fixed locality. There is also provided a method of applying adhesive and a method of manufacturing a membrane electrode assembly.
Absstract of: WO2025087866A1
The invention relates to a method of operating a solid oxide electrolysis cell (SOEC) stack for producing hydrogen, and a system for carrying out the method, said SOEC stack comprising at least one solid oxide electrolysis cell (SOEC), said at least one SOEC comprising an electrolyte layer interposed between a fuel-side and an oxy-side, the method comprising transient operation, in which the transient operation comprises: - operating the SOEC stack under open-circuit voltage (OCV); - providing a feed gas comprising ammonia; - supplying at least a portion of said feed gas comprising ammonia to a guard bed reactor, said guard bed reactor comprising a catalyst active in the cracking of ammonia to nitrogen and hydrogen; and withdrawing from said guard bed reactor a forming gas comprising nitrogen and hydrogen; - supplying at least a portion of the forming gas comprising nitrogen and hydrogen to the fuel-side of the at least one of the solid oxide electrolysis cells (SOECs) of the SOEC stack; and withdrawing from said at least one of the SOECs of the SOEC stack, a first fuel-side exit gas.
Absstract of: EP4800161A1
Provided is a technique for suppressing occurrence of cracking in a solid electrolyte layer. A solid oxide electrolysis cell includes an air electrode containing a complex oxide having a perovskite structure, a fuel electrode, and a solid electrolyte layer disposed between the air electrode and the fuel electrode. In an interface region of the fuel electrode, which region extends 5 µm from the interface between the fuel electrode and the solid electrolyte layer, the Al content is 1 ppm or greater and 100 ppm or less.
Absstract of: EP4546472A1
0001 The invention relates to an electrochemical device (1) comprising: - at least one, preferably a plurality of, electrochemical cell (4) comprising a fuel electrode an oxygen electrode and a membrane, - at least one fluid inlet line (2) leading to the fuel electrode of the at least one electrochemical cell (4), - at least one fluid outlet line (3), exiting the fuel electrode of the at least one electrochemical cell (4), - at least a first co-fluid line leading to the oxygen electrode of the at least one electrochemical cell, - a reformer with an integrated heat exchanger (5) located upstream to the at least one electrochemical cell (4), - at least one hot stream line (6) to provide heat to the fluid inlet line (2), - at least two temperature sensors (T) for detecting the inlet temperature of the at least one fluid and/or for detecting the at least one outlet temperature of the at least one fluid, preferably at a reformer inlet side and/or a reformer outlet side. 0002 A first pre-heater (7) is arranged between the reformer (5) and the at least one electrochemical cell (4). The fluid inlet line (2) is in fluid communication with the reformer (5) and/or first preheater (7) and the hot stream line (6) is in fluid communication with reformer (5) and/or the first preheater (7).
Absstract of: WO2025087881A1
The invention is based on a method for operating a fuel cell system (10), wherein a temperature of a fuel cell unit (12) of the fuel cell system (10) is regulated by means of an air feed rate in one method step. It is proposed that the air feed rate in at least one operating state is determined at least depending on a rate of change of a target temperature value (22) of the fuel cell unit (12).
Absstract of: CN122074051A
The present invention relates to an annular filter element assembly comprising two annular filter elements through which a fluid can flow in series. The outer annular filter element surrounds the inner annular filter element at least in a sub-region of its axial extension. The rotational position of the two annular filter elements relative to each other is fixed in such a way that an engagement element arranged between the two annular filter elements engages in the radial direction at least into one of the annular filter elements. The engagement element may be retained on a central tube that extends between the filter media bodies of the annular filter element. In one embodiment, the central tube is secured to one of the annular filter elements, and the engagement element is engaged into the other annular filter element. In another embodiment, the engagement element engages into the two annular filter elements, and then the central tube may be released from the two annular filter elements and may be secured to the filter housing. One or both of the annular filter elements may have a bellows. Preferably, the engagement element is engaged into the folded fold which is expanded.
Absstract of: WO2025088418A1
Electrochemical device (1), preferably of the electrolyser type for hydrogen production, characterised by comprising: - at least one support frame (2), with a substantially laminar development, which is provided with at least one seat (3) for an electrochemical module (10), said support frame (2) comprising a first face (12') and a second face (12") which are opposite to each other, at least one electrochemical module (10) which is mounted in said at least one seat (3) and which comprises a separation membrane interposed between two electrodes, respectively between an anode and a cathode, at least one bipolar plate (20) for applying/transferring electrical energy to the electrodes of said at least one electrochemical module (10), said bipolar plate (20) comprising a first surface (21') and a second surface (21") which are opposite to each other, said bipolar plate (20) being superimposed on said support frame (2) and being configured so that the first surface (21') of said bipolar plate (20) rests, at least in part, on a first face (12') of said support frame (2).
Absstract of: EP4800783A1
0001 In some embodiments, an electrochemical cell assembly (100, 180) includes a plurality of electrochemical cells (106). The electrochemical cell assembly (100, 180) includes a first end (102, 186) of the that receives and discharges an input stream and a second end (104, 188) disposed opposite the first end (102, 186). Each electrochemical cell in the plurality of electrochemical cells (106) comprises an electrolyte (130), a first electrode (132), and a second electrode (134). A plurality of flow plates (108, 184) are disposed between adjacent electrochemical cells (106) in the plurality of electrochemical cells (106). Each of the plurality of flow plates (108, 184) comprises at least one slot that defines a portion of an axial flow channel (114, 116, 118, 120, 182) that extends from the first end (102, 186) to the second end (104, 188). The electrochemical cell assembly (200) (180) (100) also comprises an insert (122, 124, 126, 128, 190) disposed in the axial flow channel (114, 116, 118, 120, 182). The at insert (122, 124, 126, 128, 190) has a geometry that is non-uniform along an axial direction that extends from the first end (102, 186) to the second end (104, 188) of the electrochemical cell assembly (100, 180).
Absstract of: US20260251306A1
A heat storage body through which a gas and a liquid pass, a first fuel injector that is provided upstream of the heat storage body in a direction in which the gas and the liquid flow and injects a first fuel, an igniter that is provided downstream of the heat storage body in the direction in which the gas and the liquid flow, and a second fuel injector that is provided downstream of the first fuel injector and upstream of the igniter in the direction in which the gas and the liquid flow and injects a second fuel having lower ignitability than the first fuel.
Absstract of: WO2025026794A1
The invention relates to an electrically powered vehicle (10), including an electric drive (126) for propelling the vehicle (10); a fuel cell (14) for generating electrical and thermal energy; an electrically rechargeable high-voltage vehicle battery (124) for supplying power to the electric drive (126), which battery can be heated by thermal energy of the fuel cell (14); and a low-voltage electrical system (108) for supplying other electric low-voltage consumers (114); the invention is characterised in that the low-voltage electrical system (108) can be supplied with low-voltage power from the fuel cell (14).
Nº publicación: EP4799217A1 02/09/2026
Applicant:
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
Absstract of: WO2025124808A1
The invention relates to a system (1) for the generation of electric energy, comprising a first oxygen store (2) for oxygen or for an oxygen-containing gas and a first hydrogen store (3) for fluidic hydrogen, a first fuel cell (4) which is connected to the first oxygen store (2) via a first oxygen line (5) and to the first hydrogen store (3) via a first hydrogen line (6), and a first water outlet (7), said system (1) further comprising a second hydrogen store (8) for hydrogen which is bound to a hydrogen carrier and which can be released again by way of the addition of water, a second fuel cell (9) which can be supplied with oxygen via a second oxygen line (10) and which is further connected via a second hydrogen line (11) to the second hydrogen store (8) and has a second water outlet (12), wherein the first and the second water outlet (7, 12) are connected via first and second water lines (13, 14) to a water inlet (15) of the second hydrogen store (8). The invention further relates to a method for the generation of electric energy.
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