Absstract of: EP4712175A1
L'invention porte sur un empilement de cellules électrochimiques réparties en N groupes d'alimentation en les fluides réactifs. Chaque plaque bipolaire (1a) comporte N premiers collecteurs (4a, 4b) pour l'alimentation en le même premier fluide réactif, au moins une ligne d'étanchéité interne (5b), N premières lignes de joint (10a, 10b), et un compartiment d'homogénéisation (20). La ligne d'étanchéité interne (5b) est située entre le premier collecteur non-alimentant (4b) et la première ligne de joint (10b) associée. La première tôle (2) s'étend continûment entre les tunnels d'injection aval (14a, 14b) et le compartiment d'homogénéisation (20) en restant espacée de la deuxième tôle (3), de sorte que le premier fluide réactif s'écoule des tunnels d'injection aval (14a) dans le compartiment d'homogénéisation (20) en étant confiné entre les deux tôles (2, 3).
Absstract of: EP4712177A1
The invention provides an electrolyte for use in an all-iron redox flow battery, comprising an aqueous solution of an Fe<sup>2+</sup> salt; a first cation additive being aluminium Al<sup>3+</sup>; and a second cation additive selected from the group consisting of Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup> or NH<sub>4</sub><sup>+</sup>.
Absstract of: WO2025031655A1
The present invention relates to a recirculation device (2) for a fuel cell (3). The recirculation device (2) has a drive (10), a conveying means (20) and a separation means (30). The drive (10) comprises a drive shaft (11). The conveying means (20) is coupled to the drive shaft (11) in such a manner that the conveying means (20) can be driven by the drive (10). The conveying means (20) is designed to recirculate a medium as recirculated material in the fuel cell (3). The separation means (30) is arranged upstream of the conveying means (20) in the flow direction of the recirculated material. The separation means (30) is coupled to the drive shaft (11) in such a manner that the separation means (30) can be driven by the drive (10). The separation means (30) is designed to separate liquid from the recirculated material.
Absstract of: EP4711327A1
A corrosion-resistant system, a carbon-free power generation and fuel cell system comprising the corrosion-resistant system, and a method for ammonia decomposition utilizing said corrosion-resistant system are provided. The corrosion-resistant system includes: an ammonia supply unit; a first pipe connected to the ammonia supply unit; an ammonia decomposition unit comprising a chamber connected to the first pipe; and a second pipe connected to the chamber, wherein the chamber is configured to operate at an operating temperature of 410°C or lower, the first pipe and the chamber comprise at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel and a nickel-based alloy, and the second pipe comprises a nickel-based alloy (NT) satisfying Equation 1 below. T≤15μm
Absstract of: WO2024230864A1
The invention relates to a device (1) for checking the tightness of electrochemical cells (2), in particular with regard to H2 tightness. The device has a chamber (3) for accommodating and checking at least one electrochemical cell (2). For the purpose of the check, the chamber (3) is subjected to a vacuum. A unit (6) for gas supply is provided, which supplies an electrochemical cell (2) to be checked with compressed air, as a result of which the interior of the electrochemical cell (2) is pressurized. This is made possible particularly advantageously in that the pressure difference between the interior of the cell (2) having the excess pressure and the chamber (3) having the vacuum is particularly high and is additionally varied periodically. As a result, there is a particular incentive for a periodically varying gas transfer between the interior of the cell (2) and the chamber (3) under vacuum, which allows for the tightness to be checked particularly advantageously and meaningfully. The pressure sensor (7) allows for a periodic pressure increase in the chamber (3) to be detected and to be analyzed by means of the control unit (8), and for meaningful information regarding insufficient tightness to be obtained, without interference by non-periodic interfering effects, and made available to the user. The device according to the invention can detect very minor leaks, which for example lead to leakage rates in the range of 10-4 mbar per liter of the volume and per second, and a
Absstract of: EP4711328A1
Disclosed are an ammonia supply system, a hydrogen production system, a carbon-free power generation system and a fuel cell system. The ammonia supply system includes: an ammonia supply unit; an ammonia demand unit; a connection line that is arranged to connect the ammonia supply unit and the ammonia demand unit; a hydrogen supply unit; and one or more first hydrogen supply lines that are arranged to connect the hydrogen supply unit and the connection line, and are configured to supply a hydrogen gas stream, wherein the connection line includes a first pipe configured to be controlled to an average temperature of 410°C or lower and a second pipe configured to be controlled to an average temperature of greater than 410°C, and the second pipe includes a nickel-based alloy (NT) satisfying Equation 1 below. T≤15μm,
Absstract of: EP4712293A1
Problem To provide an operation management device capable of ensuring the convenience of a power generation system by causing the power generation system to perform an operation suitable for a request to the power generation system in a predetermined case.Solution An operation management device manages an operation of a power generation system comprising an engine power generator and a fuel cell power generator, and the operation management device comprises a processing portion that operates one of the engine power generator and the fuel cell power generator when a required output of the power generation system is equal to or less than a first predetermined value.
Absstract of: CN121195365A
The present invention provides a separator for an electrochemical device, comprising: an ion exchange membrane comprising at least one first polymer having an acidic functional group A; and a fabric wherein the fabric comprises fibers, and wherein the surface of the fibers has a basic functional group C, and wherein the fabric supports an ion exchange membrane. The invention also provides a method for manufacturing the separator for the disclosed electrochemical device, a device comprising the separator for the disclosed electrochemical device and the use of the separator for the disclosed electrochemical device in an electrodialysis cell, in a fuel cell, in a PEM electrolysis device or in a redox flow battery.
Absstract of: CN121100421A
The invention relates to a device (100) for filtering ambient air, comprising: a reactor (110) which is designed to carry out an electrochemical reaction of a reactant with an oxidizing agent, by means of which at least one liquid (230) can be produced as a product; the filtering system (200) is provided with a first liquid storage device (220); a first connection line (170) is formed between the reactor (110) and the first reservoir (220) through which the generated liquid (230) can flow from the reactor (110) to the first reservoir (220); the filtration system (200) is designed to bring ambient air into contact with the generated liquid (230) in the reservoir (220) so that impurities can be filtered from the ambient air; a second connection line (150) is formed between the filtration system (200) and the reactor (110), through which filtered ambient air of the filtration system (200) can be fed to the reactor (110) as an oxidizing agent for electrochemical reactions.
Absstract of: CN121079603A
The invention relates to a method and a measuring device for diagnosing a component to be examined, comprising the following steps: operating the component (10) to be examined in a circuit (11) at a predefined operating point for a predefined first measurement interval (12); during the first measurement interval, a measurement signal and an excitation signal (13) are detected in the circuit as a function of time, the excitation signal being a signal of a passive component (14) in the circuit, which passive component is in a predetermined first excitation state (15) at the beginning of the first measurement interval, and the passive component is in a predetermined second excitation state (15) at the beginning of the first measurement interval. And the measurement signal is formed by superposing an excitation signal of the passive device and a working signal of the component to be inspected.
Absstract of: CN121443774A
The present invention relates to a method of synthesizing a transition metal catalyst consisting of electrodeposition on a substrate electrode from an electrolyte solution comprising at least one transition metal precursor wherein the electrodeposition is carried out at a deposition current density of 500 to 2000 mA/cm2. The invention also relates to a transition metal catalyst characterized in that it is stable on a base electrode at a current density of at least 400 A/cm2 for at least 30 minutes.
Absstract of: CN121195363A
The invention relates to a fuel cell device (10) having at least one line system (12) for conducting fuel; having at least one reformer (14) connected to the line system (12) for reforming the fuel; and at least one Nernst cell unit (16, 18), in particular a lambda sensor, for detecting a process fluid parameter of a fluid located in the line system (12). According to the invention, the Nernst cell unit (16, 18) is arranged upstream of the reformer (14).
Absstract of: WO2024235659A1
The invention relates to a method for operating an electric drive system of a motor vehicle, comprising at least one fuel cell and at least one battery. The invention is characterised in that an operating strategy is determined in real time using a computing unit disposed in the vehicle, wherein the operating strategy is aimed at achieving a constant power specification with low operating points, so that the fuel cell is operated continuously with constant power.
Absstract of: EP4712176A1
The present invention relates to a oxide oxidation unit (600) for converting at least one reductant to thermal energy under the production of exhausts (G) and further exhausts (H) from a first supply flow (24) comprising an oxidant and a second supply flow (26) comprising the reductant, respectively; the solid oxide oxidation unit (600) comprising a duct wall (14) configured for separating the first supply flow (24) from the second supply flow and at least sectionwise comprising an electrolyte layer allowing for a transfer of ions of the oxidant to the reductant; wherein the duct wall (14) comprises an electrically conducting material (113) allowing for a transfer of electrons from the reductant to the oxidant for enabling a full oxidation of the reductant contained in the second supply flow (26). Furthermore, the present invention relates to a fuel cell arrangement (200) comprising at least one solid oxide oxidation unit (600) and at least one fuel cell setup (100) comprising a carrier structure (10) comprising a duct wall; wherein a primary power coating layer (28) is applied on a surface of the duct wall for being arranged between the first supply flow and the second supply flow; and wherein the primary power coating layer (28) is configured for generating electrical energy from the first supply flow and the second supply flow; to an energy supply system (300), comprising at least one solid oxide oxidation unit (600) and/or at least one fuel cell arrangement (200), and to
Absstract of: WO2024231107A1
It is the objective of the present invention to provide a fuel cell powered EV fast charger that allows to charge at high current without the risk of overheating the charging infrastructure, such as cables (4), contact (5) and the like. This objective is achieved according to the present invention by a fuel cell powered EV fast charger, comprising: • a) a stack of fuel cells, each fuel cell comprising an anode-side electrical power collector and a cathode-side electrical power collector; • b) a power converting unit that is on its input-side connected to the anode- and cathode-side electrical power collectors and that provide at its output-side a number of power cables (4) for the transfer of fast charging voltages and currents; c) a cooling system that is connected for heat dissipation with the stack of fuel cells, wherein a cooling line of said cooling system is used to cool the power cables (4) and/or the contacts (5) and/or the power-converting unit and/or d) a further cooling system that collects process water generated by the electrochemical reaction in the fuel cells wherein the power cables (4) and/or the contacts (5) and/or the power-converting unit are cooled using this process water.
Absstract of: CN120957831A
The invention relates to a device (5) and a method for welding half-sheets (2, 3) to form a bipolar plate (1). The device comprises at least three tool parts, namely a lower tool part (6a) and a multi-part upper tool part (6b), in which half-sheets (2, 3) to be welded together can be inserted between the lower tool part (6a) and the multi-part upper tool part (6b). The multi-part upper tool part (6b) comprises a plurality of individual parts (7; the individual parts (7, 8) of the multi-part upper tool part (6a) can be arranged one after the other and only alternately above the lower tool part (6a), and wherein both at least one first opening (9) for introducing a pressurized gas and at least one second opening (10) for introducing a pressurized gas are formed in each of the individual parts (7, 8) of the multi-part upper tool part (6a). The half-sheets (2, 3) can be pressed against each other by means of a pressurized gas, and a second opening (10, 10 ') for introducing joining energy during the welding process for welding the half-sheets (2, 3), the second opening (10, 10') in the individual part (7, 8) of the multi-part upper tool part (6b) as viewed perpendicular to the plane of the half-sheets (2, 3), and the second opening (10, 10 ') being formed in the individual part (7, 8) of the multi-part upper tool part (6b), as viewed perpendicular to the plane of the half-sheets (2, 3). 10 ') are largely complementary to each other and overlap only in some areas, such that only a
Absstract of: WO2024230958A1
An electrochemical device (10'), with a cell stack consisting of a plurality of cell stack elements, with a force application unit (13) which exerts a force on the cell stack in order to press the cell stack elements of the cell stack fluid-tightly in sealing regions (17) of the cell stack, wherein the force application unit (13) is designed in such a manner that the force for pressing the cell stack acts on the cell stack and therefore on the sealing regions (17) of the cell stack depending on the operating state of the electrochemical device (10').
Absstract of: EP4711326A1
A hydrogen catalyst for vehicle cooling is described. A system may include a catalyst positioned in a flow path coupling a hydrogen storage tank to a hydrogen consumer, the catalyst configured to convert hydrogen fuel from a para state to an ortho state via an endothermic reaction. The system may further include a coolant circuit configured to circulate coolant through the hydrogen consumer and a coolant-fed heat exchanger configured to thermally couple the coolant in the coolant circuit to the hydrogen fuel, the coolant-fed heat exchanger arranged upstream of the hydrogen consumer in the flow path.
Absstract of: WO2024235430A1
A system and method for controlling operation of a fuel cell system of a fuel cell vehicle are provided. The fuel cell system comprises a fuel cell stack comprising an anode side and a cathode side, and a hydrogen storage device for storing hydrogen supplied to the anode side of the fuel cell stack. The method comprises estimating a duration of a stopover of the vehicle when a request to shut down the fuel cell system is received, estimating a hydrogen protection time at least due to a first hydrogen refill comprising supplying the hydrogen to the anode side of the fuel cell stack from the hydrogen storage device, and determining, based at least on the estimated duration of the stopover and the hydrogen protection time, whether to enable or disable one or both the first hydrogen refill operation and at least one subsequent hydrogen refill operation.
Absstract of: EP4711503A2
An electrochemical cell stack includes: a stack including electrochemical cells; a first clamping plate provided in contact with the stack; and a heat conduction member provided in contact with the first clamping plate. The heat conduction member is lower in heat conductivity than the first clamping plate under an operating temperature range of the electrochemical cell stack.
Absstract of: EP4711506A1
Provided are an electrochemical cell and an electrochemical device that are easily manufactured and capable of retrofitting. The electrochemical cell includes: a first plate and a second plate between which an anode chamber and a cathode chamber are respectively formed on respective opposing inner surface sides thereof; and a sealing portion provided between the first plate and the second plate, in which the sealing portion includes plural frame bodies disposed at intervals from an inner side to an outer side, and plural sealing members disposed between the plural frame bodies and disposed in a compressed state between the first plate and the second plate. The electrochemical device includes the electrochemical cell.
Absstract of: CN121399300A
An electrosynthetic or electrical energy cell is disclosed that includes a first gas diffusion electrode and a second electrode. A spacer, including but not limited to a porous capillary spacer, is at least partially positioned between the first gas diffusion electrode and the second electrode. In one form, the liquid electrolyte is transferred onto a side surface of the separator beyond the electrode. In one example, a liquid electrolyte reservoir is also provided in which the first gas diffusion electrode, the second electrode, and the spacer are positioned outside the liquid electrolyte reservoir. In one example, a liquid electrolyte reservoir includes an aperture for releasing a liquid electrolyte. In another form, an intermediate liquid supply structure is located at least partially between the spacer and the liquid electrolyte reservoir, where the liquid electrolyte is transferred through the intermediate liquid supply structure. Methods of operation and cell stacks are also disclosed.
Absstract of: GB2644122A
A bearing housing (93, Fig.7) for a hydrogen recirculation pump 1, comprising, a body (99, Fig.7) configured to receive one or more bearings (95, Fig.7), the one or more bearings being configured to support rotation of an impeller (29, Fig.7) about a longitudinal axis and a connecting flange (107, Fig.7) configured to engage the impeller , the connecting flange extending around and radially outward of the body; and wherein the connecting flange is offset along the longitudinal axis, from an axial midpoint of the body. Also disclosed are a hydrogen recirculation pump 1 and a modular form thereof, coupling members (49 , Fig.7), an impeller, a pump cover 3 and an adaptor 7.
Absstract of: AU2024314248A1
Redox flow battery systems are described. The redox flow battery systems include a main cell and a three-chambered rebalancing cell. The system can optionally also include a two-chambered rebalancing cell. The three-chambered rebalancing cell and two-chambered rebalancing cell can be operated alternately, in parallel, or in series. Methods of operating the redox flow battery systems are also described.
Nº publicación: EP4709906A1 18/03/2026
Applicant:
UOP LLC [US]
UOP LLC
Absstract of: CN121311631A
Composite proton exchange membranes are described. The composite proton exchange membrane comprises three layers, wherein the three layers comprise a proton exchange membrane layer, a continuous nonporous organic-inorganic composite coating layer and a continuous nonporous cross-linked polyelectrolyte multilayer coating. Catalyst coated membranes incorporating the composite proton exchange membranes and methods of making the composite proton exchange membranes are also described.