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Brennstoffzellensystem und Verfahren zum Betreiben eines Brennstoffzellensystems

Absstract of: DE102024205646A1

Die Erfindung betrifft Verfahren zum Betreiben eines Brennstoffzellensystems (2) in einem Gefrierstartbetrieb, wobei das Brennstoffzellensystem (2) wenigstens eine Brennstoffzelle (26) mit einer Anode (28) und einer Kathode (30); und eine Strahlpumpe (22) umfasst, die dazu ausgebildet ist, angetrieben von einem Wasserstoffmassenstrom (ṁH2), der der Anode (28) der wenigstens einen Brennstoffzelle (26) zugeführt wird, Gas, das aus der Anode (28) der wenigstens einen Brennstoffzelle (26) austritt, gemeinsam mit dem Wasserstoffmassenstrom (ṁH2) in die Anode (28) der wenigstens einen Brennstoffzelle (26) zurückzuführen. Das Verfahren umfasst im Gefrierstartbetrieb den der Strahlpumpe (22) zugeführten Wasserstoffmassenstrom (ṁH2) so zu begrenzen, dass er unterhalb einer vorgegebenen Rezirkulationsschwelle der Strahlpumpe (22) liegt, so dass während des Gefrierstartbetriebs keine relevante Rückführung von aus der Anode (28) der Brennstoffzelle (26) austretenden Gasen in die Anode (28) der Brennstoffzelle (26) stattfindet.

Brennstoffzellensystem

Absstract of: DE102025120198A1

Die Erfindung betrifft ein Brennstoffzellensystem.Das erfindungsgemäße Brennstoffzellensystem umfasst eine Brennstoffzelle (6), einen Kathodengaszuleitung (16), eine Anodengaszuleitung (17), eine Kathodengasableitung (18) und eine Anodengasableitung (19), wobei die Kathodengaszuleitung für die Zuführung von einem sauerstoffhaltigen Gas zur Brennstoffzelle (6) ausgebildet ist, und mit der Kathodengaszuleitung (16) ein Sauerstofftank (14) verbunden ist, um Sauerstoff aus dem Sauerstofftank (14) über die Kathodengaszuleitung der Brennstoffzelle (6) zuzuführen.

Brennstoffzellenvorrichtung und Verfahren zur Steuerung einer solchen

Absstract of: DE102024117702A1

Die vorliegende Erfindung betrifft ein Verfahren zur Steuerung einer Brennstoffzellenvorrichtung (100), welche eine Brennstoffzelleneinheit (110) und ein Leitungssystem (112) aufweist, das eine Rezirkulationsleitung (188) anodenseitig umfasst, wobei sich die Rezirkulationsleitung (188) an einer Verzweigungsstelle (204) in zwei parallel geschaltete Leitungsabschnitte (200, 202) verzweigt und die zwei parallel geschalteten Leitungsabschnitte (200, 202) an einer Zusammenführungsstelle (206) der Rezirkulationsleitung (188) wieder zusammengeführt sind, wobei das Verfahren aufweist: Ermöglichen und/oder Veranlassen einer Rückwärtsströmung (104) von Brennstoffmedium, welche entgegen einer Rezirkulationsrichtung (106) des Brennstoffmediums orientiert ist, in einem der zwei Leitungsabschnitte (202), insbesondere mittels einer schaltbaren, vorzugsweise strömungshemmenden und/oder strömungsunterbindenden, Einheit (208). Ferner stellt die vorliegende Erfindung eine Brennstoffzellenvorrichtung (100) bereit.

FUEL CELL MODULE

Absstract of: EP4668378A2

A fuel cell module (FCM) includes a fuel cell stack (FCS), and a controller (Cnt) configured to start power generation of the fuel cell stack (FCS) when a charging rate of a power storage device (B) directly connected between the fuel cell stack (FCS) and a load (Lo) becomes a lower limit value or less, and configured to stop power generation of the fuel cell stack (FCS) when the charging rate of the power storage device (B) becomes an upper limit value or more. The fuel cell stack (FCS) is connected to the power storage device (B) not through a power conversion circuit, and the controller (Cnt) changes at least one of the lower limit value and the upper limit value based on a deterioration degree of the fuel cell stack (FCS).

Filtervorrichtung

Absstract of: DE102024002055A1

Filtervorrichtung für Luft, insbesondere in Form von Kathodenluft, zumindest bestehend aus einem hohlzylindrischen Filterelement (10), dessen Filtermatte (12) aus mindestens zwei Funktionslagen (14, 16) gebildet ist, von denen anströmseitig (18) die eine Funktionslage (14) der Filtration und die andere abströmseitige (20) Funktionslage (16) der Adsorption dient.

HOLLOW FIBER MEMBRANE FOR HUMIDIFIER, MANUFACTURING METHOD THEREOF, AND HUMIDIFIER INCLUDING HOLLOW FIBER MEMBRANE

Absstract of: EP4667091A1

The present disclosure relates to a hollow fiber membrane including a polymer and an antioxidant, wherein the antioxidant is included in an amount of 0.01 parts to 5 parts by weight based on 100 parts by weight of the hollow fiber membrane.

FUEL CELL SYSTEM

Absstract of: EP4668377A1

The present disclosure provides a fuel cell system, including: a fuel cell stack; a hydrogen supply unit for supplying hydrogen to the stack; an air supply unit for supplying air to the stack, wherein the air supply unit includes an air compression unit and a humidifier; and a filter unit disposed between the air supply unit and the fuel cell stack and configured to remove peroxide and/or hydroxyl radicals.

POLYMER, ELECTROLYTE MATERIAL, ELECTROLYTE MEMBRANE, ELECTROLYTE MEMBRANE WITH CATALYST LAYER, MEMBRANE ELECTRODE ASSEMBLY, SOLID POLYMER FUEL CELL, AND SOLID POLYMER WATER ELECTROLYSIS DEVICE

Absstract of: EP4667509A1

A polymer having a structure represented by the following formula (1).In the formula (1), A¹ denotes a constitutional unit represented by the following formula (a1), A² denotes a constitutional unit represented by the following formula (a2), L¹ and L² each independently denote a single bond or the like, n denotes an integer in a range of 10 to 100, and * represents a bonding site.In the formula (a1), IExG denotes an ion-exchange group, L³ denotes a single bond or the like, x denotes an integer in a range of 2 to 10, and * represents a bonding site.In the formula (a2), Ar denotes an arylene group having no ion-exchange group, L⁴ denotes a single bond or the like, y denotes an integer in a range of 3 to 20, and * represents a bonding site.

ELECTRODE CATALYST LAYER AND MEMBRANE ELECTRODE ASSEMBLY

Absstract of: EP4667624A1

An electrode catalyst layer 2 includes catalyst particles 12, an ionomer 13, and ionomer-adsorptive carbon fibers 14α. The ionomer-adsorptive carbon fibers 14α may have an adsorption amount of the ionomer of 10 mg or more per 1 g of the ionomer-adsorptive carbon fibers, may have a diameter in a range of 50 nm or more and 1 µm or less, and may be vapor-grown carbon fibers (VGCF) subjected to hydrophilic treatment.

ELECTRODE FOR FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY, AND MANUFACTURING METHOD THEREFOR

Absstract of: EP4668374A1

The present disclosure relates to an electrode for a fuel cell, a membrane-electrode assembly including the same, and a manufacturing method therefor. More specifically, the electrode for a fuel cell of the present disclosure, particularly, a fuel electrode, separates a water electrolysis catalyst from an electrode catalyst, and has gradients in hydrophobicity and absorbency in a catalyst layer, allowing water to move easily into a water electrolysis catalyst layer, thereby greatly improving reverse-voltage resistance while maintaining the same output performance as the related art.

CARBON CARRIER, METAL-SUPPORTED CATALYST, ELECTRODE, AND FUEL CELL

Absstract of: EP4667098A1

Provided are a carbon carrier, a metal-supported catalyst, and an electrode that each improve the power generation performance of a fuel cell in , low-humidity operating conditions, and a fuel cell improved in power generation performance in low-humidity operating conditions. The carbon carrier is a carbon carrier for supporting catalyst metal particles, having: an oxygen content of 2.6 wt% or more; and a carbon structure which exhibits one or more selected from the group consisting of the following characteristics (i) to (v) in a Raman spectrum obtained by Raman spectroscopy: (i) a half width at half maximum of a G band having a peak top at a Raman shift of around 1,580 cm^-1 is 37 cm^-1 or less; (ii) a half width at half maximum of a D band having a peak top at a Raman shift of around 1,340 cm^-1 is 38 cm^-1 or less; (iii) a half width at half maximum of a 2D band having a peak top at a Raman shift of around 2,700 cm^-1 is 57 cm^-1 or less; (iv) a ratio of an intensity of the D band to an intensity of the G band is 1.6 or more; and (v) a ratio of an intensity of the 2D band to the intensity of the G band is 0.3 or more.

CARBON CARRIER, METAL-SUPPORTED CATALYST, ELECTRODE, AND BATTERY

Absstract of: EP4667414A1

Provided are a carbon carrier that achieves both the durability and catalytic activity of a metal-supported catalyst, and a metal-supported catalyst, an electrode, and a battery. The carbon carrier is a carbon carrier for supporting catalyst metal particles, having: a BET specific surface area of 300 m²/g or more; a true density of 2.1 g/cm³ or more; and a carbon structure which exhibits one or more selected from the group consisting of the following characteristics (i) and (ii) in a Raman spectrum obtained by Raman spectroscopy: (i) a ratio of an intensity of a D band having a peak top at a Raman shift of around 1,340 cm^-1 to an intensity of a G band having a peak top at a Raman shift of around 1,580 cm^-1 is 1.6 or more; and (ii) a ratio of an intensity of a 2D band having a peak top at a Raman shift of around 2,700 cm^-1 to the intensity of the G band having a peak top at a Raman shift of around 1,580 cm^-1 is 0.3 or more.

CARBON CARRIER, METAL SUPPORTED CATALYST, ELECTRODE, AND BATTERY

Absstract of: EP4667097A1

Provided are a carbon carrier that achieves both the durability and catalytic activity of a metal-supported catalyst, and a metal-supported catalyst, an electrode, and a battery. The carbon carrier is a carbon carrier for supporting catalyst metal particles, having: a BET specific surface area of 300 m²/g or more; a true density of 2.1 g/cm³ or more; and a carbon structure which exhibits one or more selected from the group consisting of the following characteristics (i) to (iii) in a Raman spectrum obtained by Raman spectroscopy: (i) a half width at half maximum of a G band having a peak top at a Raman shift of around 1,580 cm^-1 is 37 cm^-1 or less; (ii) a half width at half maximum of a D band having a peak top at a Raman shift of around 1,340 cm^-1 is 38 cm^-1 or less; and (iii) a half width at half maximum of a 2D band having a peak top at a Raman shift of around 2,700 cm^-1 is 57 cm^-1 or less.

WELDED JOINT

Absstract of: EP4667598A1

A weld joint, in which a chemical composition of a base metal includes, in mass%, C: 0.10% or less, Si: 1.9 to 5.0%, Mn: 4.00% or less, P: 0.040% or less, S: 0.0040% or less, Cr: 15.0 to 26.0%, Ni: 7.0 to 23.0%, N: 0.001 to 0.250%, Al: 0.05% or less, arbitrary elements, and the balance: Fe and impurities, and a chemical composition of a weld metal includes, in mass%, C: 0.10% or less, Si: 1.5 to 4.0%, Mn: 3.00% or less, P: 0.040% or less, S: 0.0040% or less, Cr: 17.0 to 25.0%, Ni: 10.0 to 23.0%, N: 0.100% or less, and Al: 0.08% or less.

PEPTIDE SELF-ASSEMBLY AS A STRATEGY FOR FACILE IMMOBILIZATION OF ENZYMES AND MICROORGANISMS ON ELECTRODES

Absstract of: US2025369136A1

A modified fibrous electrode having associated therewith a self-assembled structure formed of a plurality of short aromatic peptides and a biocatalyst associated with the self-assembled structure, electrochemical cells and systems assembled with such modified electrodes and uses thereof are provided.

MODULE ARRANGEMENT OF SOLID OXIDE CELL STACKS

Absstract of: AU2024223621A1

An object of the invention is a module arrangement of solid oxide cell stacks being arranged to a 2 x N matrix, N being any natural number. The arrangement comprises a fuel inlet manifold (150) and a fuel outlet manifold (152) between the two adjacent stacks (103).The fuel inlet manifold (150) and the fuel outlet manifold (152) form a fuel manifold (171) to deliver supply fuel gas (108) to the stacks and fuel exhaust gas (177) from the stacks, and the stacks been arranged in the manifold in a parallel connection from the fuel gas supply and fuel exhaust gas connection point of view. The stacks (103) are arranged with a common oxygen side gas supply compartment (106) connecting the inlet side of the open structure of oxygen side gas delivery (105) and common oxygen side gas exhaust compartment (176) connecting the outlet side of the open structure of oxygen side gas delivery (105). The inlet manifold (150) comprises gas flow holes of controllable sizes to the stacks (103) for forming even gas flow to the stacks, and the outlet manifold (152) comprises gas flow holes of controllable sizes to the stacks (103) for forming even gas flow from the stacks. The module arrangement comprises a first gas seal (155), a first electrical insulation plate (119) and a second gas seal (156) between the manifold (171) and the stack (103). On top side (122) and on bottom side (124) of the cell stack (103) the module arrangement comprises a second electrical insulation plate (114), compression st

EFFICIENCY MODULATION IN FUEL CELL SYSTEMS

Absstract of: EP4668376A1

A fuel cell system and a method of operating a fuel cell system are described herein. The fuel cell system (100) comprises at least one fuel cell module (110), each fuel cell module (110) comprising a fuel cell (111). The fuel cell system further includes an exhaust gas manifold (130) in fluid communication with the fuel cell module (110), the exhaust gas manifold (130) being configured for receiving exhaust gas from the fuel cell module (110). The fuel cell system includes a turbocharging system (150) comprising a compressor (152) and a turbine (151) in fluid communication with the exhaust gas manifold (130); and an efficiency modulation system (160) arranged within the exhaust gas manifold (130) and upstream of the turbocharging system (150).

METHOD AND APPARATUS FOR THREE-DIMENSIONAL COATING OF POROUS MATERIAL

Absstract of: EP4667614A1

Die Erfindung schafft eine Vorrichtung und ein Verfahren zum Vorrichtung (100) zum mindestens teilweisen 3-dimensionalen Beschichten eines porösen Materials (1). Die Vorrichtung (100) umfasst:eine Beschichtungskammer (110);eine Führungseinrichtung (120), welche dazu eingerichtet ist, ein poröses zu beschichtendes Materials (1) fortlaufend durch die Beschichtungskammer zu führen; undeine Beschichtungseinrichtung (130), welche dazu eingerichtet ist, jeweils einen aktuell in der Beschichtungskammer (110) befindlichen Teil des zu beschichtenden Materials (1) mittels physikalischer Gasphasenabscheidung in einem Vakuum (3) mit einem Beschichtungsmaterial (2) zu beschichten, welches zumindest beim Beschichten strömungsmechanische Eigenschaften im Knudsen-Bereich aufweist.

BIPOLAR PLATE

Absstract of: EP4668375A1

Bipolarplatte (10), insbesondere für einen Brennstoffzellenstapel, mit einer elektrisch leitfähigen Tragstruktur (20, 22) und mit einem auf der Tragstruktur (20, 22) ausgebildeten Strömungsprofil (30, 32) zur Fluidführung, wobei die Tragstruktur (20, 22) eine Graphitfolie aufweist und/oder als Graphitfolie ausgebildet ist.

FLUID COOLING SYSTEM

Absstract of: EP4668047A1

A fluid cooling system for cooling a fuel cell system is provided, comprising processing circuitry, a fluid valve for controlling a flow ratio between a first input port of the fluid valve and a second input port of the fluid valve to provide a predetermined wanted output temperature at an output port of the fluid valve. The processing circuitry is configured to repeatedly: obtain a first input temperature at the first input port and a second input temperature at the second input port; determine an open loop flow ratio based on the first input temperature and the second input temperature; obtain an output temperature at the output port; determine a corrective closed loop flow ratio based on the output temperature and the predetermined wanted output temperature; combine the open loop flow ratio and the corrective closed loop flow ratio to provide a combined flow ratio; and control a position of the fluid valve based on the combined flow ratio.

GAS DIFFUSION ELECTRODE, MEMBRANE-ELECTRODE ASSEMBLY, AND ELECTROLYSIS DEVICE

Absstract of: EP4667622A1

Die Erfindung betrifft eine Gasdiffusionselektrode (4, 5) für eine Membran-ElektrodenAnordnung zum Einsatz in einer Brennstoffzelle oder einer Elektrolysevorrichtung, aufweisend einen Verbund aus einer Mehrzahl von schichtweise angeordneten Streckmetalllagen (6, 7, 8), gekennzeichnet durch eine Vlieslage (9) aus Metallfasern, wobei eine dem Verbund zugewandte Oberfläche der Vlieslage (9) mit einer dem Verbund abgewandten Oberfläche einer einendseitig des Verbunds angeordneten äußeren Streckmetalllage (6) in Kontakt steht, wobei die dem Verbund abgewandte Oberfläche der Vlieslage (9) dazu dient, an der Membran (2) der Membran-ElektrodenAnordnung (1) anzuliegen.

PART COATED WITH A CARBON-BASED LAYER

Absstract of: CN120858473A

The invention relates to a component comprising a metal substrate and a layer of an amorphous carbon-based material having sp2 hybrid bonds and sp3 hybrid bonds wherein the layer has a first content of sp3 hybrid bonds on the substrate side and a second content of sp3 hybrid bonds on the outer surface side of the layer, the first content being greater than the second content; it is characterized in that the average content of sp3 hybrid bonds within the layer is from 5% to 65%, preferably from 5% to 45%, and in that the content of sp3 hybrid bonds varies continuously within the layer.

IMPROVEMENT OF H+ CONDUCTIVITY FOR FUEL CELL ELECTROLYZERS

Absstract of: US2024405244A1

A doped silica layer on a substrate comprises a substrate and a doped silica layer that has a thickness of 5 to 1000 nm, and a dopant:silicon atomic ratio of 0.5:99.5 to 15:85. The dopant is preferably P+5. The invention includes an electrolyzer comprising the doped silica layer and a method of electrolyzing water to produce hydrogen using the electrolyzer. The doped silica can be made by applying a silica layer by atomic layer deposition (ALD) and treating the silica layer with a phosphorus gas in which phosphorus is in the +3 valence state.

Verfahren zum Betreiben eines Brennstoffzellensystems, Brennstoffzellensystem, Fahrzeug, Computerprogrammprodukt und Speichermedium

Absstract of: DE102024117518A1

Die hier offenbarte Technologie betrifft erfindungsgemäß ein Verfahren zum Betreiben eines Brennstoffzellensystems (10), aufweisend die Schritte: Ermitteln einer Brennstofftemperatur in einem Brennstoffpfad (14), Ermitteln einer Mischgastemperatur in einem Anodeneinlasspfad (15), Ermitteln einer Anodenabgastemperatur in einem Rezirkulationspfad (17), Ermitteln einer Energiebilanz über einen Mischpunkt (29) basierend auf der ermittelten Brennstofftemperatur, der ermittelten Mischgastemperatur und der ermittelten Anodenabgastemperatur, Ermitteln eines Stoffmengenstroms im Rezirkulationspfad (17) basierend auf der Energiebilanz und Betreiben des Brennstoffzellensystems (10) basierend auf dem ermittelten Stoffmengenstrom. Die Technologie betrifft ferner ein Brennstoffzellensystem (10), ein Fahrzeug (100) und ein Computerprogrammprodukt (70) zum Durchführen des Verfahrens sowie ein computerlesbares Speichermedium (80), auf welchem das Computerprogrammprodukt (70) gespeichert ist.

一种高效的氢燃料电池余热综合利用系统

Nº publicación: CN223712781U 23/12/2025

Applicant:

东方电气（成都）氢能科技有限公司东方电气集团东方锅炉股份有限公司

Absstract of: CN223712781U

本实用新型涉及氢燃料电池技术领域，特别是一种高效的氢燃料电池余热综合利用系统，包括电堆模块、冷却液循环管路、温差发电模块、换热器和冷介质管路；电堆模块用于发电；冷却液循环管路的两端分别连通电堆模块的冷却液出口和冷却液进口；温差发电模块和换热器沿冷却液流向前后依次设置在冷却液循环管路上；温差发电模块和换热器均位于冷介质管路上，冷介质管路内冷介质的流向与冷却液流向相同。本实用新型优点是通过将温差发电模块和换热器均设置在冷却液循环管路和冷介质管路上，使流出电堆的冷却液既参与温差发电又与冷介质之间换热，对电堆发电产生的余热进行协同利用。