Alerta

REINFORCED ION EXCHANGE MEMBRANES

Resumen de: AU2024273570A1

The present invention provides a cell membrane comprising: an ion exchange membrane comprising at least one first polymer exhibiting acidic functional groups A; and a fabric, wherein the fabric comprises fibers, and wherein the surface of the fibers exhibits basic functional groups C, and wherein the fabric supports the ion exchange membrane. The present invention also provides a method for manufacturing the disclosed cell membrane, a device comprising the disclosed cell membrane, and a use of the disclosed cell membrane in an electrodialysis cell, in a fuel cell, in a PEM electrolyzer, or in a redox flow battery.

METHOD FOR OPERATING A FUEL CELL SYSTEM, CONTROL DEVICE

Resumen de: WO2025247840A1

The invention relates to a method for operating a fuel cell system having a fuel cell stack and an anode subsystem for supplying an anode region of the fuel cell stack with a hydrogen-containing anode gas, wherein nitrogen-enriched anode gas exiting the fuel cell stack is passively recirculated by means of a jet pump via an anode circuit of the anode subsystem. According to the invention, the following steps are carried out in order to detect an increased nitrogen content of the anode gas: - generating pressure pulses in the anode circuit, which lead to negative pressure jumps, - measuring the voltage at the cell level and/or at the stack level during the negative pressure jumps, and - comparing the measured voltage with a predefined threshold value, wherein it is concluded that the nitrogen content is unduly high if the voltage falls below the threshold value. The invention also relates to a control device for a fuel cell system.

METHOD FOR OPERATING A MACHINING DEVICE, CORRESPONDING DEVICE, AND SOLID OXIDE FUEL CELL

Resumen de: WO2025247887A1

The invention relates to a method for operating a machining device (10a) comprising: at least one machining unit (12a), in particular a laser drilling unit, wherein, in at least one machining step, at least one through-opening (14a) is introduced into the substrate (16a) for an electrochemical cell by means of the machining unit (12a); and at least one open-loop and closed-loop control unit (20a) by means of which parameters of the machining unit (12a) are adjusted. According to the invention, the machining unit (12a) comprises at least one laser that can emit GHz bursts, wherein the individual laser pulses within the burst train are picosecond laser pulses, wherein, in said at least one machining step, the substrate (16a) for an electrochemical cell is machined by means of the GHz burst laser.

AN INDUSTRIALIZED FUEL CELL

Resumen de: WO2025248508A1

The system comprises a fuel cell including electrodes, a fuel inlet for introducing a non-carbon binding fuel into the fuel cell, an air inlet, an electrolyte inlet, and an outlet for outlet of deplenished electrolyte.

AIR SUPPLY SYSTEM FOR A FUEL CELL STACK

Resumen de: WO2025247772A1

The invention relates to an air supply system (10) for a fuel cell stack (2), in particular for a fuel cell stack (2) of an aircraft fuel cell drive (1), comprising an air provision device (20) for providing an air flow for the fuel cell stack (2) and an air feed device (30) which is arranged downstream of the air provision device (20), can be connected to the fuel cell stack (2), in particular to the cathode side thereof, and can conduct air to the fuel cell stack (2), wherein a humidifying apparatus (31) for humidifying the air for the fuel cell stack (2) is arranged in the air feed device (30). One problem addressed by the invention is that of specifying an air supply system for a fuel cell stack which offers greater robustness against the fuel cell stack drying out. According to the invention, an air supply system (10) which solves this problem is provided in that a water injection apparatus (40) for injecting water into the air flow is arranged between the air provision device (20) and the air feed device (30).

MACHINING DEVICE COMPRISING AT LEAST ONE MACHINING UNIT, IN PARTICULAR A LASER DRILLING UNIT, AND METHOD FOR OPERATING SUCH A DEVICE

Resumen de: WO2025247884A1

The invention relates to a machining device (10) comprising: at least one machining unit (12), in particular a laser drilling unit, which comprises a laser element (18) and at least one optical element (22), wherein the machining unit (12) is designed to introduce at least one recess into a substrate for an electrochemical cell (16) in at least one operating state; and at least one holding unit (24) which comprises at least one coupling element (50), wherein the at least one coupling element (50) is designed to receive at least one substrate for an electrochemical cell (16). According to the invention, the holding unit (24) has at least one rotatably mounted rotation element (52) which is connected to the at least one coupling element (50).

BOXER MODULE FOR AN ELECTROCHEMICAL CELL SYSTEM

Resumen de: WO2025245551A1

A boxer module (10) for an electrochemical cell system (200), comprising a plurality of cell stacks (100) arranged one above another along a boxer direction (BR), each having a fuel section with a fuel supply section (122) for supplying fuel supply gas (KZG) and a fuel discharge section (124) for discharging fuel exhaust gas (KAG) and an air section having an air supply section (132) for supplying air supply gas (LZG) and an air discharge section (134) for discharging air exhaust gas (LAG), wherein at least one common module gas-conducting section (110) is arranged between two cell stacks (100) with a conducting direction (FR) transverse to the boxer direction (BR) such that the module gas-conducting section (110) separates a first module region (M1) with a first subset (T1) of the cell stacks (100) from a second module region (M2) with a second subset (T2) of the cell stacks (100), wherein the module gas-conducting section (110) is in common fluid-communicating connection with the fuel supply section (122), the fuel discharge section (124), the air supply section (132) or the air discharge section (134) of the cell stacks (110) of the two subsets (T1, T2) of the cell stacks (100) along the boxer section (BR).

ASSEMBLY COMPRISING A PLURALITY OF HIGH-TEMPERATURE SOEC/SOFC SOLID OXIDE STACKS AND A BYPASS

Resumen de: WO2025247777A1

The invention relates to an assembly (100) comprising: a module (80) comprising a plurality of SOEC/SOFC solid oxide stacks (20a, 20b, 20c, 20d) electrically connected in series, each stack (20a, 20b, 20c, 20d) comprising a gas inlet (EG) and a gas outlet (SG); a heat exchanger (10); a heating device (30) for heating the gases (G), and a bypass duct (40) configured to supply gas (G) in a controlled manner to only a portion of the gas inlets (EG) of the stacks (20a, 20b, 20c, 20d), wherein the bypass duct (40) comprises control means (45) intended to control the supply of gas (G) from the bypass duct (40) to the portion of the gas inlets (EG).

CELL VOLTAGE MONITORING CONNECTOR FOR A FUEL CELL STACK

Resumen de: WO2025247610A1

Cell voltage monitoring connector (100) for monitoring a cell voltage of a fuel cell stack (1) having a plurality of alternatingly stacked bipolar plates (2) and membrane electrode assemblies (4), wherein the cell voltage monitoring connector (100) comprises a housing (101) made from an electrically insulating material and at least one electrical contact element (160; 170), which is made from an electrically conducting material and adapted to contact the bipolar plate (2), characterized in that the connector housing (101) has at least one protruding rib (110; 120) which is adapted to be inserted between a bipolar plate (2) and a membrane electrode assembly (4) of the fuel cell stack (1), wherein the at least one protruding rib (110; 120) is equipped with the electrical contact element (160; 170).

ELECTRODE WITH CONDUCTIVE INTERLAYER AND METHOD THEREOF

Resumen de: US2025372612A1

In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).

METHODS AND SYSTEMS FOR OPTIMIZING OPERATION OF AN ELECTROCHEMICAL SYSTEM

Resumen de: WO2025250286A1

The following disclosure relates to systems and methods for optimizing an operation of an electrochemical system. An optimization system may include a processor configured to determine an adjustment to one or more setpoints for the operation of the electrochemical system based on an optimization model that takes into account a desired performance parameter, an operating load point of the electrochemical system, and/or operating conditions of the electrochemical system received by the processor. In other examples, the optimization system includes a controller configured to: receive desired operating set points for operation of an electrochemical system; receive operating conditions of the electrochemical system; and determine an adjustment to an off-taker control valve, an electrochemical stack pressure control valve, a power supply unit, or a combination thereof based on an optimization model.

ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL DEVICE, MODULE, AND MODULE STORAGE DEVICE

Resumen de: WO2025249510A1

This electrochemical cell has a flow path member and an element part. The flow path member has a first portion having a flat plate shape, a first folded-back portion, and a second folded-back portion. The first portion has a first surface and a second surface that is located on the opposite side of the first surface. The first folded-back portion and the second folded-back portion are respectively folded back from both ends in the first direction along the first surface, and face the second surface. The element part faces the first surface. Each of the first folded-back portion and the folded-back portion has a joint portion inside the contour of the element part when viewed in plan from the element part.

ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL DEVICE, MODULE, AND MODULE STORAGE DEVICE

Resumen de: WO2025249529A1

This electrochemical cell comprises: a metal member; an element part located on the metal member; and a sealing part containing a seal material. The element part has a first surface facing the metal member, a second surface located opposite the first surface, and a side surface connecting the first surface and the second surface. The sealing part has a first portion located outside the contour of the element part in plan view, and a second portion in contact with the side surface. The element part includes a seal material and has a mixing part in contact with the second portion. The mixing part has a thickness of less than 1 μm.

SOLID OXIDE FUEL CELL SYSTEM FOR MASS ELECTRICITY PRODUCTION

Resumen de: WO2025249790A1

The present invention relates to a solid oxide fuel cell system that, unlike conventional methods in which anode off-gas and cathode off-gas are independently used for each individual stack of a solid oxide fuel cell, reduces the total amount of fuel required by the system and decreases the amount of external water used by recycling, in a rear-end stack, anode off-gas from a front-end stack, and reduces the amount of external air required by the system and decreases the electricity consumption of a blower by recycling, in the rear-end stack, cathode off-gas from the front-end stack.

VANADIUM ELECTROLYTE, AND SECONDARY BATTERY COMPRISING SAME

Resumen de: WO2025249779A1

The present invention relates to a vanadium electrolyte and to a secondary battery comprising same and, more particularly, to a vanadium electrolyte having a controlled concentration of an element causing a hydrogen evolution reaction (HER) occurring during charging and discharging of a secondary battery, and to a secondary battery comprising the vanadium electrolyte.

APPARATUS FOR CLEANING ELECTROLYTE INJECTOR

Resumen de: WO2025250123A1

An injector cleaning system for use with an electrolyte injection system is disclosed. The cleaning system includes condensing container that contains a cleaning solution. The condensing container is constructed to circulate the cleaning solution through the injection system to remove contaminants. The cleaning system also includes a distillation container that is constructed to collect the contaminated cleaning solution within the injection system. The distillation container boils the contaminated cleaning solution to create a cleaning solution vapor and then transfers the vapor to the condensing container, where the vapor is condensed into a cleaning solution for re- circulation through the injection system.

WÄRMEMANAGEMENTSYSTEM EINES BRENNSTOFFZELLEN-ELEKTROFAHRZEUGS UND STEUERUNGSVERFAHREN DESSELBEN

Resumen de: DE102024129654A1

Ein Wärmemanagementsystem für ein Brennstoffzellenfahrzeug kann umfassen: ein Verdichter, der dazu eingerichtet ist, Kältemittel zu komprimieren, einen Kältemittel-Wasser-Wärmetauscher, der vorgesehen ist, um den Verdichter dazu zu veranlassen, das Kältemittel darin anzusaugen, wobei der Kältemittel-Wasser-Wärmetauscher einen ersten Wärmetauscher, der dazu eingerichtet ist, einen Wärmeaustausch zwischen dem Kältemittel und dem Wassermedium aus einer Brennstoffzellenentladung zu vollziehen, aufweist, einen Akkumulator, der vorgesehen ist, um den Verdichter dazu zu veranlassen, das Kältemittel darin anzusaugen, wobei der Akkumulator einen zweiten Wärmetauscher, der dazu eingerichtet ist, einen Wärmeaustausch zwischen dem Kältemittel und dem Wassermedium zu vollziehen, aufweist, ein an einer Wassermediumleitung angebrachtes Strömungsregelventil, das dazu eingerichtet ist, das Wassermedium zuzuführen, wobei das Strömungsregelventil einen Öffnungszustand desselben steuert, um das Wassermedium wahlweise mindestens dem ersten Wärmetauscher oder dem zweiten Wärmetauscher zuzuführen, und eine Steuerung, die dazu eingerichtet ist, den Öffnungszustand des Strömungsregelventils zu steuern.

Elektrochemische Vorrichtung

Resumen de: DE102024115364A1

Um eine elektrochemische Vorrichtung, umfassend einen Stapel aus elektrochemischen Einheiten, die längs einer Stapelrichtung aufeinander folgen, und einen Anodengaskreislauf, in welchem Anodengas aus den elektrochemischen Einheiten zu den elektrochemischen Einheiten rückführbar ist, wobei der Anodengaskreislauf einen Wasserabscheider umfasst, zu schaffen, bei welcher Wasser aus dem Anodengas in dem Anodengaskreislauf effizienter abgeschieden werden kann, wird vorgeschlagen, dass der Wasserabscheider mindestens ein bewegliches Element umfasst.

Elektrodenplatte und Verfahren zur Herstellung

Resumen de: DE102024115534A1

Die Erfindung betrifft eine Elektrodenplatte (10) und ein Verfahren zur Herstellung einer Elektrodenplatte für eine Flussbatterie, Brennstoffzelle oder dergleichen, wobei die Elektrodenplatte durch Anordnung einer porösen Elektrode (15) auf einer Bipolarplatte (11) ausgebildet wird, wobei die Bipolarplatte mit der Elektrode stoffschlüssig verbunden wird.

Bearbeitungsvorrichtung mit zumindest einer Bearbeitungseinheit, insbesondere Laserbohreinheit

Resumen de: DE102024204929A1

Die Erfindung geht aus von Bearbeitungsvorrichtung (10), mit zumindest einer Bearbeitungseinheit (12), insbesondere Laserbohreinheit, welche ein Laserelement (18) und zumindest ein optisches Element (22) umfasst, wobei die Bearbeitungseinheit in zumindest einem Betriebszustand dazu eingerichtet ist, zumindest eine Ausnehmung in ein Substrat für eine elektrochemische Zelle (16) einzubringen, und mit zumindest einer Halteeinheit (24), welche zumindest ein Koppelelement (50) umfasst, wobei das zumindest eine Koppelelement (50) zu einer Aufnahme von zumindest einem Substrat für eine elektrochemische Zelle (16) eingerichtet ist.Es wird vorgeschlagen, dass die Halteeinheit (24) zumindest ein drehbar gelagertes Rotationselement (52) aufweist, welches mit dem zumindest einen Koppelelement (50) verbunden ist.

Polymerelektrolyt-Membran-Brennstoffzelle, Herstellungsverfahren für eine Diffusionsschicht, Diffusionsschicht und Verwendung einer Diffusionsschicht

Resumen de: DE102024115414A1

Eine Polymer Polymerelektrolyt-Membran-Brennstoffzelle (1) umfassend eine Membran-Elektroden-Anordnung mit einer Anode (3), einer Kathode (5) und einer zwischen der Anode (3) und Kathode (5) vorliegenden Polymerelektrolyt-Membran (4), wobei auf der Anode (3) eine wasserhaltende Diffusionsschicht (2) vorgesehen ist und auf der Kathode (5) eine wasserabtransportierende Diffusionsschicht (6a) vorgesehen ist, die derart eingerichtet sind, dass im bestimmungsgemäßen Betrieb der Brennstoffzelle (1) durch die wasserabtransportierende Diffusionsschicht (6a) in der Kathode (5) entstehendes Wasser abtransportiert wird, und durch die wasserhaltende Diffusionsschicht (2) eine Gaszufuhr von Wasserstoff zur Anode (3) stattfindet, wobei der Wasserstoff innerhalb der Anode (3) in Protonen und Elektronen aufgespalten wird und die Protonen durch eine in der Membran-Elektroden-Anordnung enthaltene Ionomer-Matrix in eine Reaktionsrichtung geleitet werden, und die wasserhaltende Diffusionsschicht (2) wasserhaltende Eigenschaften aufweist, derart, dass im bestimmungsgemäßen Betrieb der Brennstoffzelle (1) Wasser zumindest in der Anode (3) gehalten wird, um eine Befeuchtung der Ionomer-Matrix und eine damit verbundene verbesserte Protonenleitung bereitzustellen, sodass die Brennstoffzelle (1), im Vergleich dazu, dass auf der Anode (3) eine Diffusionsschicht vorliegt, die zur wasserabtransportierenden Diffusionsschicht (6a) der Kathode (5) identisch ist, zumindest eine an einer Polarisationskurv

Verfahren zum Betrieb eines Brennstoffzellensystems, Mischvorrichtung und Brennstoffzellensystem

Resumen de: DE102024204937A1

Die Erfindung geht aus von einem Verfahren (10) zum Betrieb eines Brennstoffzellensystems (12), das zum Betrieb mit einem kohlenwasserstoffhaltigen Sollbrennstoff ausgelegt ist.Es wird vorgeschlagen, dass in zumindest einem Verfahrensschritt ein von dem Sollbrennstoff unterschiedlicher kohlenwasserstoffhaltiger Alternativbrennstoff, insbesondere Biogas, dem Brennstoffzellensystem (12) zugeführt wird.

Verfahren zu einer Betriebskontrolle eines elektrochemischen Systems, elektrochemisches System und Computerprogrammprodukt

Resumen de: DE102024204930A1

Die Erfindung geht aus von einem Verfahren (10) zu einer Betriebskontrolle eines elektrochemischen Systems (12) mit zumindest einer Eduktversorgungsleitung (14) und mit zumindest einem in der Eduktversorgungsleitung (14) angeordneten Sperrventil (16).Es wird vorgeschlagen, dass in zumindest einem Verfahrensschritt während eines regulären Betriebs des elektrochemischen Systems (12) das Sperrventil (16) betätigt wird, um eine Funktionstüchtigkeit des Sperrventils (16) zu erhalten und/oder zu prüfen.

Verfahren und Vorrichtung zur Ermittlung des Brennstoff-Mengenstroms über das Purge-Ventil eines Brennstoffzellensystems

Resumen de: DE102024114931A1

Die hier offenbarte Technologie betrifft erfindungsgemäß eine Vorrichtung (103) zur Ermittlung eines Schätzwertes für den Brennstoff-Mengenstrom von Brennstoff (211) über das Purge-Ventil (303) eines Brennstoffzellensystems (100), wobei das Purge-Ventil (303) ausgebildet ist, ein Gasgemisch aus dem Anodensubsystem des Brennstoffzellensystems (100) zu einem Kathodenabgas (312) des Brennstoffzellensystems (100) zu leiten. Die Vorrichtung (103) ist eingerichtet, einen Schätzwert für einen Inertgas-Mengenstrom von Inertgas von dem Kathodensubsystem zu dem Anodensubsystem des Brennstoffzellensystems (100) zu ermitteln, und den Schätzwert für den Brennstoff-Mengenstrom auf Basis des Schätzwerts für den Inertgas-Mengenstrom zu ermitteln.

Elektrochemischer Energiespeicher und Verfahren zu dessen Herstellung

Nº publicación: DE102024205101A1 04/12/2025

Solicitante:

FRAUNHOFER GES FORSCHUNG [DE]
Fraunhofer-Gesellschaft zur F\u00F6rderung der angewandten Forschung eingetragener Verein