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514
resultados
Última actualización
30/05/2025 [06:49:00]
Resultados 175 a 200 de 514
Resumen de: US2025167261A1
The present invention provides a method of fixing a separator membrane to a first frame member of a battery cell stack. The method comprises: creating a fixation area comprising a first zone and a second zone, wherein creating the first zone comprises securing the separator membrane to the first frame member, and wherein creating the second zone comprises mechanically compressing the separator membrane with a projection of a frame member or with a sealing part. There is also provided a cell stack and a use of an ion-exchange membrane in the disclosed cell stack.
Resumen de: US2025167260A1
The present disclosure relates to a sealing arrangement, a bipolar plate, an arrangement for an electrochemical system, and an electrochemical system. The sealing arrangement comprises a frame-shaped layer, a first elastomeric sealing element and/or a second elastomeric sealing element, and an elastomeric fluid guide structure. The frame-shaped layer has a cut-out extending over an electrochemically active region, and a through-opening for passing a fluid. The first sealing element lies against an inner edge of the through-opening and projects laterally into the through-opening in order to seal the through-opening. The second elastomeric sealing element lies against an inner edge of the cut-out and projects laterally into the cut-out in order to seal the cut-out. The elastomeric fluid guide structure has a plurality of fluid passages for passing fluid from the through opening to the cut-out or vice versa.
Resumen de: US2025167258A1
The present disclosure relates to a bipolar plate for an electrochemical system, having a first separator plate and a second separator plate arranged one on top of the other. Each separator plate has, on a side facing away from the other, embossed webs and channels to guide a fluid. The separator plates each have on their mutually facing sides webs and channels to guide a cooling medium along an inner side of the bipolar plate. At least one of the separator plates has structured web regions on at least one side. The structured web regions at least have periodic surface structures with an average spatial period of less than 10 μm. A proportion of the structured web regions of a total web surface is distributed heterogeneously over the total web surface.
Resumen de: US2025167257A1
A flow field for supplying a reactant to an electrode of an electrochemical cell includes an inlet configured to receive the reactant from a reactant supply, an outlet configured to expel spent reactant, the outlet positioned on an opposite side of the flow field from the inlet, a first plate configured to contain the reactant between the first plate and the electrode across substantially an entire surface area of the electrode, and a separator plate configured to be positioned between the first plate and the electrode and to divide the reactant into a first portion and a second portion at the inlet, the separator plate having a smaller surface area than the first plate.
Resumen de: US2025167255A1
A metal-supported catalyst includes: a carbon carrier and catalyst metal particles. A noble metal weight ratio to a metal-supported catalyst weight is 35 wt % or more. The catalyst has a BET specific surface area of 350 (m2/g-carbon carrier) or more. The catalyst has: (a1) a 2D band intensity ratio having a peak top in a Raman shift vicinity of 2,680 cm−1 to a G band intensity having a peak top in a Raman shift vicinity of 1,600 cm−1 in a Raman spectrum is 0.20 or more and 1.00 or less; and (a2) a half width at half maximum of a D band having a peak top in a Raman shift vicinity of 1,340 cm−1 in the Raman spectrum is 41.0 cm−1 or less, and: (b1) an alloy composition nonuniformity is 0.55 or less: (b2) a half-maximum asymmetry and a 1⁄4-maximum asymmetry are each 0.55 or less.
Resumen de: US2025167256A1
The present disclosure relates to a bipolar plate for an electrochemical system and an electrochemical system comprising at least one such bipolar plate. The bipolar plate comprises a first separator plate and a second separator plate, which are arranged on top of each other. At least one of the separator plates has, on the side that faces the other separator plate, only partially coated surface areas, which are provided with a coating that increases the electrical conductivity.
Resumen de: US2025167259A1
A method for manufacturing fuel cells may include forming an adhesive layer by applying a pressure-sensitive adhesive along a predetermined seal line on a surface of a supporting frame which supports a membrane electrode assembly; bringing a separator to the surface of the supporting frame until the separator contacts the adhesive layer; and bonding the supporting frame and the separator together by applying a compressive force to the supporting frame and the separator which contact each other via the adhesive layer. In bringing a separator to the surface of the supporting frame, in a cross-sectional view perpendicular to a longitudinal direction of the seal line, a distance between a surface of the adhesive layer and a surface of the separator facing the surface of the adhesive layer may be minimum at a specific point and increases monotonically from the specific point in a width direction of the seal line.
Resumen de: US2025167254A1
A fuel cell (e.g., a proton exchange membrane fuel cell). The fuel cell includes a cathode electrode, an anode electrode having an anode catalyst layer, and a membrane extending between the cathode electrode and the anode electrode. The anode catalyst layer has a capacitance of greater than 0.1 F/cm2 in a potential window for operation of the fuel cell of −0.1 to 1.2 V versus a reversible hydrogen potential. The capacitance of the anode catalyst layer mitigates degradation of the cathode electrode during an air-air start of the fuel cell.
Resumen de: US2025167253A1
Catalyst with ionomer-like polymeric chains grafted thereto are disclosed. The ionomer-like chains provide a reactant bridge for between the catalyst and ionomer such as in a fuel cell, especially when deposited in deep pores or cervices. In a refinement, the polymeric chains are deposited on less active facets of the catalyst.
Resumen de: US2025167252A1
Provided is a method of producing a catalyst for a membrane-electrode assembly, the method including: preparing a precursor solution including a catalyst metal; preparing a seed solution by maintaining the precursor solution at a temperature within a first temperature range, lower than room temperature; maintaining the seed solution at a temperature within a second temperature range, higher than the first temperature range; and heating the seed solution to a temperature within a third temperature range, higher than the second temperature range.
Resumen de: US2025167251A1
A perovskite-type composite oxide powder according to the present invention includes: La; and at least one type of element selected from the group consisting of Sr, Ca, Co, Ni, Mn and Fe, a BET specific surface area is less than 6.0 m2/g and a formula (1) below is satisfied:1≤{(D90B-D10B)/D50B}/{(D90A-D10A)/D50A}≤2.1(1)in the formula, D10 is a cumulative 10% particle size by volume, D50 is a cumulative 50% particle size by volume and D90 is a cumulative 90% particle size by volume when a measurement was performed with a particle size distribution measuring device that uses a laser diffraction/scattering method, and a subscript “A” indicates a particle size after ultrasonic dispersion and a subscript “B” indicates a particle size before ultrasonic dispersion.
Resumen de: US2025167249A1
Catalyst with polymeric chains grafted thereto are disclosed. The polymeric chains provide steric hinderance to eliminate or mitigate catalyst poisoning from an ionomer in a fuel cell. In a variation short stiff polymeric chains may be grafted to the catalyst to provide adequate steric hindrance. In a refinement, the polymeric chains are deposited on less active facets of the catalyst.
Resumen de: US2025167250A1
Catalyst with polymeric chains grafted thereto is disclosed. The polymeric chains are configured to localize free radical scavengers proximate the catalyst, which, for example, in fuel cell may be a primary source of free radicals. In a refinement, the polymeric chains are deposited on less active facets of the catalyst.
Resumen de: US2025167264A1
An air supply apparatus for an aerial mobility vehicle, which is provided with a fuel cell stack, includes an air compressor mounted in the aerial mobility vehicle and configured to compress air introduced into the aerial mobility vehicle, and an air chamber provided in the aerial mobility vehicle and connecting the air compressor and the fuel cell stack, wherein the air chamber defines a conditioning space for conditioning the air having passed through the air compressor, obtaining an advantageous effect of ensuring a stable supply of air to the fuel cell stack and improving operational stability and reliability.
Resumen de: US2025167267A1
A hybrid system for generating hydrogen according to an embodiment may include: a compressed hydrogen supply system configured to store compressed hydrogen gas supplied from an external hydrogen charging station, and selectively supply the hydrogen gas to a fuel cell; and a solid hydrogen supply system configured to generate the hydrogen gas by a chemical reaction of a chemical hydride, and selectively supplying generated hydrogen gas to the fuel cell.
Resumen de: US2025167263A1
A heat management system for the fuel cell battery includes: a fuel cell stack comprising a plurality of fuel cells stacked on one another, and an external cooling passage provided around the outer circumference of the fuel cell stack and configured to allow a cooling water to flow therethrough.
Resumen de: JP2025079358A
【課題】燃料電池スタックの発電電力が制限されることでＤＣＤＣコンバータの出力電力が電力指令値より小さくなる場合において、燃料電池モジュールの出力電力の変動を抑制する。【解決手段】燃料電池スタックＦＣＳと、燃料電池スタックＦＣＳの出力電圧を所定電圧に変換するＤＣＤＣコンバータＣＮＶと、入力される電力指令値にＤＣＤＣコンバータＣＮＶの出力電力が追従するように燃料電池スタックＦＣＳの発電指令値をフィードフォワード制御及びフィードバック制御により制御するとともに、ＤＣＤＣコンバータＣＮＶの動作を制御する制御部Ｃｍとを備えて燃料電池モジュールＦＣＭを構成し、制御部Ｃｍは、発電指令値が制限される場合で、かつ、ＤＣＤＣコンバータＣＮＶの出力電力が発電指令値より大きくない場合、フィードバック制御を禁止する。【選択図】図１
Resumen de: WO2025106146A2
One embodiment is directed to an integrated energy storage and distribution system, comprising: an electrolysis module configured to utilize intake electricity and intake water to output hydrogen gas, oxygen, and surplus water; a metal hydride hydrogen storage module configured to controllably store, or alternatively release, hydrogen gas; a fuel cell module configured to controllably intake hydrogen gas and output electricity and water vapor; and a computing system operatively coupled to the electrolysis module, storage module, and fuel cell module and configured to coordinate operation of these modules relative to each other; wherein the electrolysis, storage, and fuel cell modules are thermally coupled such that heat energy released from one or more modules which may be at least transiently exothermic may be utilized by one or modules which may be at least transiently endothermic.
Resumen de: WO2025106995A1
Compounds with redox molecular cores and branched molecular tails comprising ionic functionalities for uses as electrolytes in redox flow batteries are described, as well as methods of synthesis and use thereof. The compounds have redox active perylene diimide or ferrocene molecular core decorated with the branched molecular tails having multiple ionic functionalities to improve water solubility of the molecular core, and, as such, its performance as the electrolyte.
Resumen de: WO2025105886A1
An embodiment of the present invention provides a carbon-embedded platinum-transition metal alloy sub-nano cluster catalyst and a manufacturing method thereof, wherein the catalyst is an oxygen reduction reaction catalyst for a hydrogen fuel cell, and reduces platinum usage and has high durability due to being produced in a form wherein platinum nano particles are inserted into the surface of a carbon carrier and embedded.
Resumen de: WO2025105390A1
Provided is a catalyst coated electrolyte membrane which has a low voltage in an anion exchange membrane-type water electrolysis test, has excellent water electrolysis performance, and has extremely high durability to such an extent that there is no problem even when used in the AEMWE method. A catalyst coated electrolyte membrane (100) has: (A) an electrolyte membrane (11) having a rupture point stress of 85 MPa or more; and (B) catalyst layers (12, 13).
Resumen de: US2025167266A1
A blade structure for a water gas separator of a fuel cell includes (i) a cylindrical body, (ii) a plurality of blades adapted to separate moisture from gas in an air flow, the plurality of blades extending independently and separately from an outer surface of the cylindrical body outwardly and in a separation relationship between at least two adjacent blades outside an area of the cylindrical body, and (iii) a retaining structure formed on the blade that allows the blade structure to be retained in a water gas separator. The blade structure of the water gas separator of the fuel cell is simplified, more convenient for processing and manufacturing, less costly to manufacture, and in some examples the press-fit installation of the existing blade structure is removed, making installation of the blade structure in the water gas separator easier and more stable.
Resumen de: WO2025105885A1
A membrane-electrode assembly includes a first catalyst electrode, a polymer electrolyte membrane covering a side surface and an upper surface of the first catalyst electrode, and a second catalyst electrode disposed on the polymer electrolyte membrane, in which at least a portion of a corner area in which the side surface and the upper surface of the first catalyst electrode are connected has a curved shape.
Resumen de: WO2025105611A1
The present invention relates to a proton conducting electrolyte powder, an electrolyte membrane, and a preparation method thereof. Specifically, the present invention relates to a heterophasic BCZYYb proton conducting electrolyte powder obtained using low-temperature solid synthesis at 1000 to 1200°C, a proton conducting electrolyte membrane with a monophasic BCZYYb (Ba,Ce,Zr,Y,Yb) composition prepared by sintering the proton conducting electrolyte powder at 1300 to 1500°C, and a preparation method of the proton conducting electrolyte membrane, comprising calcining and sintering at the temperature.
Nº publicación: WO2025105623A1 22/05/2025
Solicitante:
UNIV KOREA IND UNIV COOP FOUND [KR]
\uD55C\uAD6D\uAE30\uC220\uAD50\uC721\uB300\uD559\uAD50 \uC0B0\uD559\uD611\uB825\uB2E8
Resumen de: WO2025105623A1
The present invention relates to a method for manufacturing a reinforced composite membrane by using a gantry slot-die coater, a reinforced composite membrane manufactured by using same, and a fuel cell comprising same. The method for manufacturing a reinforced composite membrane according to an embodiment of the present invention comprises the steps of: preparing an ionomer solution; preparing a porous support; coating one surface of the porous support with the ionomer solution by using a gantry slot-die coater; and coating the other surface of the porous support with the ionomer solution by using the gantry slot-die coater.
BOPI
Sede Electrónica
