Absstract of: DE102023201741A1
Die Erfindung betrifft ein Verfahren zum Untersuchen zumindest einer elektrochemischen Zelle (100), insbesondere eines Zellstapels, durch eine elektrochemische Impedanzspektroskopie (EIS), aufweisend:- Aufprägen einer Frequenz (fi) auf ein Lastsignal (I, U) auf der zumindest einen elektrochemischen Zelle (100), insbesondere auf den Zellstapel- Erfassen einer Signalantwort (Ii, Ui) von der zumindest einen elektrochemischen Zelle (100), insbesondere vom Zellstapel,- Verändern der Frequenz (fi), um eine weitere Frequenz (fi+1) auf das Lastsignal (I, U) aufzuprägen und eine weitere Signalantwort (li+1, Ui+1) von der elektrochemischen Zelle (100), insbesondere vom Zellstapel, zu erhalten,wobei die oben genannten Schritte für einen bestimmten Frequenzbereich (df) durchgeführt werden,um eine Reihe an Signalantworten (I, U) für unterschiedliche Frequenzen (fi) in dem bestimmten Frequenzbereich (df) zu erhalten,- Zuordnen von Signalantworten (li, Ui) in der Reihe an Signalantworten (I, U) zu korrespondierenden Frequenzen (fi),- Bestimmen von Impedanzen (Z) für unterschiedliche Frequenzen (f) in dem bestimmten Frequenzbereich (df) in Abhängigkeit von korrespondierenden Signalantworten (Ii, Ui).
Absstract of: DE102023201813A1
Die Erfindung betrifft ein Verfahren zum Herstellen einer Baugruppe 100 für eine Brennstoffzelle, umfassend ein Bereitstellen 10 eines äußeren Rahmens 110 und einer Membran-Elektroden-Anordnung 120, wobei der äußere Rahmen 110 die Membran-Elektroden-Anordnung 120 umfasst, ein Anordnen 20 eines unteren inneren Rahmens 130 unter dem äußeren Rahmen 110 und der Membran-Elektroden-Anordnung 120, wobei durch den inneren Rahmen 130, den äußeren Rahmen 110 und der Membran-Elektroden-Anordnung 120 ein Aufnahmekanal 140 gebildet wird, ein Anordnen 30 eines thermoplastischen Rings 150 im Aufnahmekanal 140, sowie ein Erwärmen 40 des thermoplastischen Rings 150, wobei sich der thermoplastische Ring 150 verformt und zumindest teilweise in einen Verbindungsbereich 121 der Membran-Elektroden-Anordnung 120 eindringt. Ferner betrifft die Erfindung eine Baugruppe 100 und eine Brennstoffzelle.
Absstract of: DE102023104689A1
Um eine Bipolarplatte für eine elektrochemische Einheit einer elektrochemischen Vorrichtung, umfassend mindestens zwei Bipolarplattenlagen, welche längs einer ersten Fügelinie, die eine Mediumkanal-Durchtrittsöffnung der Bipolarplatte zumindest teilweise umgibt, stoffschlüssig aneinander festgelegt sind, zu schaffen, bei welcher das Risiko eines Durchbruchs eines Mediums durch eine Fügelinie und eine daraus resultierende Überflutung einer der Bipolarplatte benachbarten elektrochemischen Einheit in Folge von Korrosion verringert ist, wird vorgeschlagen,a) dass die Bipolarplatte eine zweite Fügelinie umfasst, welche dieselbe Mediumkanal-Durchtrittsöffnung zumindest teilweise umgibt wie die erste Fügelinie,und/oderb) dass die Bipolarplatte ein Dichtelement umfasst, welches dieselbe Mediumkanal-Durchtrittsöffnung zumindest teilweise umgibt wie die erste Fügelinie,und/oderc) dass die erste Fügelinie eine Fügebreite aufweist, welche um mindestens 25 % größer ist als die Summe (T) aus der Materialstärke (t1) einer ersten Bipolarplattenlage und der Materialstärke (t2) einer zweiten Bipolarplattenlage der Bipolarplatte.
Absstract of: DE102023201731A1
Die Erfindung betrifft ein Verfahren zur Kalibrierung eines Brennstoffzellensystems (10), sowie ein Brennstoffzellensystem (10), welches mittels eines solchen Verfahrens betreiben wird, wobei das Brennstoffzellensystem (10) eine Vielzahl an Brennstoffzellenvorrichtungen (14) umfasst. Es wird vorgeschlagen, dass während des Betriebs des Brennstoffzellensystems (10) zumindest eine Brennstoffzellenvorrichtung (14) in einem Kalibrierungsbetrieb betrieben wird.
Absstract of: WO2024178013A1
Disclosed herein are polybenzimidazole or substituted polybenzimidazole polymers comprising repeating units having the structure of Formula (I): as well as compositions thereof. The polymers and compositions of the present disclosure absorb and/or scatter ultraviolet light and are contemplated as useful at least for protecting a keratinous substrate, such as skin, from ultraviolet radiation. Methods of using the disclosed polymers and compositions are also disclosed.
Absstract of: WO2024175170A1
A fuel cell system (20) for a vehicle, the fuel cell system (20) comprising a fuel cell stack (2) and cooling system (1) for the fuel cell stack, the fuel cell stack during operation comprising a fuel at a fuel stack pressure and a coolant at a fuel cell stack inlet (3) pressure and a fuel cell stack (4) outlet pressure, the cooling system (1) comprising a primary cooling loop (5) fluidly connected to the fuel cell stack (2) and comprising a first pump (6), and a secondary cooling loop (12) comprising a secondary pump (8), wherein the secondary cooling loop (12) is fluidly connected to the primary cooling loop (5) upstream the first pump (6) such that the secondary pump (8) is adapted to be operated by a control unit to control the coolant fuel cell stack outlet (4) pressure; or wherein the secondary cooling loop (12) is fluidly connected to the primary cooling loop (5) downstream the first pump (6) such that the secondary pump (8) is adapted to be operated by a control unit to control the coolant fuel cell stack inlet (3) pressure, such that the coolant fuel cell stack outlet (4) pressure and/or the coolant fuel cell stack inlet (3) pressure are adapted to the fuel stack pressure.
Absstract of: US2024290993A1
A separator element arrangement for an electrochemical cell is presented. The separator element arrangement comprises a separator element and a diffusion layer arranged adjacent to the separator element. The separator element comprises a plurality of elongated nanostructures. At least some of the elongated nanostructures are arranged to connect the separator element to the diffusion layer by extending into the diffusion layer.
Absstract of: US2024291000A1
A gas turbine engine is provided. The gas turbine engine includes a turbomachine having a compressor section, a combustor, and a turbine section arranged in serial flow order, the turbomachine further including an outer casing; and a fuel cell assembly positioned within the outer casing of the turbomachine, the fuel cell assembly including a fuel cell positioned aft of the combustor of the turbomachine, defining an exhaust in fluid communication with a location forward of the fuel cell to provide output products to the location, or both.
Absstract of: US2024290995A1
A method for producing an electrochemical cell unit (53) for converting electrochemical energy into electric energy in the form of a fuel cell unit (1) and/or for converting electric energy into electrochemical energy in the form of an electrolysis cell unit (49), comprising stacked electrochemical cells (52). The method has the steps of: providing layered components (5, 6, 7, 8, 9, 10, 30, 51) of the electrochemical cells (52), namely preferably proton exchange membranes (5), anodes (7), cathodes (8), gas diffusion layers (9), and bipolar plates (10), and stacking the layered components (5, 6, 7, 8, 9, 10, 30, 51) in order to form electrochemical cells (52) and in order to form a stack of the electrochemical cell unit (53), wherein the gas diffusion layers (9) are provided such that the gas diffusion layers (9) comprise a magnetic material.
Absstract of: US2024290998A1
A valve for a hydrogen fuel cell module, a hydrogen fuel cell module including a valve, and a method of applying a surface coating on a valve. The valve includes a valve body defining an interior including a base material. The base material has a first surface. The valve also includes a surface coating disposed on the base material. The surface coating includes a surface layer having a second surface opposing the first surface. The surface layer contacts the first surface, and the surface layer comprises a first polymer. The surface coating also includes a dielectric layer contacting the second surface. In a hydrogen fuel cell module, the valve is connected to an exhaust flow path downstream of at least one of an anode or a cathode of a hydrogen fuel cell stack.
Absstract of: US2024291009A1
A method for purifying a treatment target solution which can remove a compound having an aliphatic hydrocarbon group which has at least one ionic group and a fluorine atom efficiently is provided.The method for purifying a treatment target solution of the present invention comprises bringing a treatment target solution containing a compound having an aliphatic hydrocarbon group which has at least one ionic group selected from the group consisting of a carboxylic acid group and a sulfonic acid group, and a fluorine atom and may contain an oxygen atom, at least one acid selected from the group consisting of HF and H2SO4 and water, into contact with a resin having a tertiary amino group to remove the compound having an aliphatic hydrocarbon group from the treatment target solution.
Absstract of: US2024291007A1
A method for diagnosing a fuel cell system, including the steps of: providing the fuel cell system includes at least two fuel cell modules, an electricity storage device, and a system control device; detecting an equipment output by the system control device; setting a predetermined load point on a first fuel cell module; assigning a first output to the predetermined load point; setting a second first output on the at least one second fuel cell module and a second output on the electricity storage device by the system control device, in such a way that a total output—as the sum of the outputs and the detected equipment output—that is detected is zero; determining a first operating value of the first fuel cell module at the predetermined load point; and determining, based on the determined first operating value, a state of the first fuel cell module.
Absstract of: US2024291005A1
The present invention relates to a fuel cell system (100) for providing electrical energy. The fuel cell system (100) comprises a blower (101) for conveying anode gas, a movement sensor (103) for detecting measurements of a movement of a paddle wheel of the blower (101), and a controller (105). The controller (105) is configured to assign a state of a composition of matter in an anode circuit of the fuel cell system (100) to measured values of the blower (101) detected by the motion sensor (103) in a speed range between a start speed and a predetermined target speed using a predetermined assignment scheme, and to adjust the fuel cell system (100) depending on the assigned state.
Absstract of: US2024291004A1
Provided is a system for deploying a container from a vehicle. The system includes a container; a reservoir configured to store a substance to be dispensed to the container; and a deployment device configured to transition the container between a deployed position and a retracted position. In the deployed position, the container is placed external to the vehicle, and in the retracted position, the container is placed internal to the vehicle. The system may further include a dispensing device connected to the reservoir and configured to dispense the substance from the reservoir to the container. Preferably, the vehicle is a fuel cell electric vehicle (FCEV) including a fuel cell stack, and the substance includes wastewater exhaust form the fuel cell stack.
Absstract of: US2024291003A1
An integrated fuel cell and combustion system that integrate both a fuel cell and a combustion system, such that the fuel cell and the combustion system share a a fuel source and an oxidizer source, and the fuel cell and combustion system can be utilized singularly or simultaneously based on the needs for power generation.
Absstract of: US2024291001A1
A flow plate for a humidifier includes a frame, and a flow field body, the frame surrounding the flow field body being connected or integral with the frame. The flow field body has a corrugated surface at least on one side, the flow field body including support elements protruding from a base plane of the flow field body and being arranged in lines and rows, the lines of the support elements extending in a first direction and the rows of the support elements extending in a second direction different from the first direction. The support elements in successive lines and rows are arranged offset from each other. The support elements in the same row are bent in one direction, and the support elements in an adjacent row are bent in another direction opposing the one direction.
Absstract of: US2024290992A1
In one aspect, the disclosure relates to conformal coating scaffold electrodes having a sintered porous perovskite scaffold and a continuous, uniform catalyst coating covering the scaffold. In one aspect the perovskite can have the formula BaZrxCeyYzYb(1−x−y−z)O3−δ, wherein 0.1≤x≤0.8, wherein 0≤y≤0.8, and wherein 0≤z≤0.3, while the catalyst can have the formula Pr2−xBaxNiO4+δ, wherein 0≤x≤0.4 (PBNO). The disclosed electrodes exhibit improved long-term operational stability compared to current technology and are sustainable, scalable, and inexpensive to produce. Also disclosed are methods for making the coating, electrochemical cells comprising the electrodes, and devices incorporating the electrochemical cells. 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: US2024291010A1
Methods useful for the manufacturing of microfluidic cells useful in electronics and other applications are disclosed. In this technique, an air cushioned pressure supplies the force to bond a membrane, which can be made from one or more of the sulfonated tetrafluoroethylene polymers commercially known as Nafion™ (i.e., proton exchange membranes) or from other thermoplastic substrates. A substrate is compressed and templated while it is simultaneously sealed inside the cell. The resultant microcells are strongly sealed while being patterned according to their application.
Absstract of: US2024291008A1
A gas turbine engine is provided. The gas turbine engine includes a turbomachine having a compressor section, a combustor, and a turbine section arranged in serial flow order, the turbomachine further including an outer casing; a fuel cell assembly positioned within the outer casing of the turbomachine, the fuel cell assembly including a fuel cell and an output products line in fluid communication with an outlet of the fuel cell for receiving output products from the fuel cell; a fuel delivery assembly including a fuel line; and a reformer in communication with the fuel line and the output products from the fuel cell during operation of the gas turbine engine to convert a fuel flow through the fuel line to a hydrogen rich gas.
Absstract of: US2024291006A1
A redox flow battery system includes: a plurality of banks; a power conversion device provided in each of the plurality of banks; and a controller that controls a state of charge of each of the plurality of banks by controlling the power conversion device. In the redox flow battery system, each of the plurality of banks includes a battery cell that performs charging and discharging by a supply of an electrolytic solution, the plurality of banks include: a plurality of first banks controlled to be in a first state of charge; and one or more second banks excluding the first banks, and the controller controls a state of charge of the second bank to be a second state of charge different from the first state of charge.
Absstract of: US2024291002A1
The invention relates to a recovery system (10) for recovering a recirculation flow that exits a fuel cell (102) and contains hydrogen, said recovery system comprising an active centrifugal separator (16, 26) designed to separate liquid water from the recirculation flow.
Absstract of: WO2024178409A1
The invention provides an electrolysis cell for alkaline water electrolysis as well as a method to make the cell with application of insert molding procedures. The invention also includes cells for PEM and AEM electrolysis and for fuel cell function. The cell is characterized by low material and manufacturing costs as well as the possibility to significantly scale up production while maintaining expected operational integrity. This invention enables one to apply insert-molding to manufacture the various types of specific cells and combine each type into stacks. In particular, the insert molding is applied to the membrane/ diaphragm and the separator plate of each cell. Cross flow and co-flow configurations are described.
Absstract of: WO2024176963A1
Provided is a hollow fiber membrane module which makes it possible to minimize a load imposed on a hollow fiber membrane. The present invention is characterized in that: the inner peripheral surface of a case 100 and a plurality of hollow fiber membranes 220 have provided therebetween a pair of planar parts 211, 212 that form a passage for a fluid flowing outside the hollow fiber membranes 220; the pair of planar parts 211, 212 are provided with a plurality of through-holes 211a, 212a that serve as passages for the fluid flowing outside the membranes; and in regions of the pair of planar parts 211, 212 where the plurality of through-holes 211a, 212a are provided, the total area occupied by the plurality of through-holes 211a, 212a accounts for 30% or more with respect to the total surface area of the sides where the plurality of hollow fiber membranes 220 are disposed, and the width of each of the through-holes in a direction parallel to the plurality of hollow fiber membranes 220 is 10 mm or less.
Absstract of: WO2024176929A1
This electrochemical cell comprises a metal plate, a cell body, a first oxide protrusion and a first non-oxide protrusion. The metal plate has a first main surface, a second main surface, a first through-hole and a second through-hole. The cell body is positioned on the first main surface of the metal plate. The cell body has a first electrode layer, a second electrode layer and an electrolyte layer. The electrolyte later is positioned between the first electrode layer and the second electrode layer. The first oxide protrusion is formed of a material containing an oxide. The first oxide protrusion is located on an inner wall surface of the first through-hole. The first non-oxide protrusion is formed of a material containing a non-oxide. The first non-oxide protrusion is located on an inner wall surface of the second through-hole.
Nº publicación: WO2024177224A1 29/08/2024
Applicant:
SK MICROWORKS CO LTD [KR]
\uC5D0\uC2A4\uCF00\uC774\uB9C8\uC774\uD06C\uB85C\uC6CD\uC2A4 \uC8FC\uC2DD\uD68C\uC0AC
Absstract of: WO2024177224A1
An embodiment provides a polyester film suitable for a hydrogen fuel cell through an improvement in long-term durability, a membrane electrode assembly comprising same, and the like. The polyester film for a hydrogen fuel cell contains a polyester resin, which includes a diol-based repeating unit and a dicarboxylic acid-based repeating unit, wherein the diol-based repeating unit includes a repeating unit having a cyclohexane skeleton and the dicarboxylic acid-based repeating unit includes a repeating unit having an isophthalic acid residue. The film may possess a tensile strength of 7 Kgf/mm2 or higher as measured after being left at 250°C for 30 minutes. The film, despite the use of a polyester-based film, exhibits excellent long-term durability, moldability, moisture resistance, and the like, and enables the provision of a film, a membrane electrode assembly, and the like, where the film has excellent utilization as a sub-gasket film for a fuel cell.