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基于突破压力和堵塞度的燃料电池水气传输模型及其应用

Resumen de: CN120413709A

本发明涉及一种基于突破压力和堵塞度的燃料电池水气传输模型及其应用。该模型考虑了无效孔的情况，引入了水堵塞度的概念并利用其代替传统的水饱和度，定义了突破压力的概念并与水堵塞度结合起来形成了新的PEMFC模型，最终深刻阐明了燃料电池内部气体扩散层的水气传输过程。该模型适用于氢燃料电池、电解水、甲醇燃料电池、可逆燃料电池等微反应器件内部多孔介质中的水气传输以及气液传输过程，具有结果准确、可靠等优点。

基于聚芳基靛红的阳离子聚合物及其制备方法和应用

Resumen de: CN120399173A

本发明提供一种基于聚芳基靛红的阳离子聚合物及其制备方法和应用，该阳离子聚合物为通过超强酸催化下的傅克缩聚反应合成出的新型的聚芳基靛红骨架，该阳离子聚合物中的靛红结构单元具有庞大的分子体积以提高阳离子聚合物成膜后的尺寸稳定性和力学性能，同时阳离子聚合物上的接枝的阳离子的N位点位于靛红结构单元的对位上，这种远程接枝的策略可进一步提高膜的阳离子抗碱稳定性，因此，本发明的阳离子聚合物展现出很高的离子电导率和机械及化学稳定性，可作为阴离子交换膜或阴离子交换聚合物粘合剂用于碱性电解水、碱性燃料电池、二氧化碳还原和液流电池。

一种双极板复合涂层及其制备方法、双极板

Resumen de: CN120400945A

本发明提供了一种双极板复合涂层及其制备方法、双极板，涉及涂层材料技术领域，该双极板复合涂层包括依次沉积在双极板表面上的打底层、中间层和表面层；所述打底层的材质为镍；所述中间层的组成成分包括镍元素和硫元素，所述中间层中硫元素的质量分数为22ppm至69ppm；所述表面层的组成成分包括镍元素和硫元素，所述表面层中硫元素的质量分数为415ppm至607ppm。本发明提供的双极板复合涂层，不仅厚度较小，而且具有较强的耐腐蚀性、较低的界面接触电阻和较高的硬度。

FUEL CELL

Resumen de: US2025246644A1

To provide a fuel cell capable of suppressing deterioration in power generation performance. A fuel cell, wherein the fuel cell comprises at least a power generation unit and a pair of separators sandwiching the power generation unit; wherein each of the pair of separators has a groove constituting a flow path; wherein the power generation unit comprises a gas diffusion layer; and wherein, in a region of the power generation unit, a surface pressure on an upstream side of an oxidant gas flow direction is larger than a surface pressure on a downstream side of the oxidant gas flow direction.

SINGLE CELL FOR FUEL CELL

Resumen de: US2025246645A1

A single cell for a fuel cell includes a power generating unit and two separators. Each separator includes a surface that faces the power generating unit, and includes gas passages. Each gas passage includes first extensions and a second extension. The second extension connects a downstream end of one of two adjacent first extensions and an upstream end of the other first extension to each other. A first rib is provided between adjacent ones of the first extensions. A second rib is provided on each first rib. The second rib of one of the two separators and the second rib of the other separator extend so as to intersect with each other when viewed in the direction in which the separators sandwich the power generating unit.

FUEL CELL STACK

Resumen de: US2025246646A1

A fuel cell stack includes stacked single cells. Each single cell includes a power generating unit, a frame including an accommodating hole, and two separators. Each separator has a surface facing the power generating unit. The surface has a gas passage. The gas passage includes first extensions and a second extension. A partition rib is provided between two of the first extensions connected to each other by the second extension. The partition rib includes a base that is in contact with a corresponding one of the gas diffusion layers of the power generating unit, and a protrusion that protrudes from the base into the corresponding gas diffusion layer. The protrusion has an opposing end opposed to an inner surface of the accommodating hole. A pressure loss increasing portion is provided at a boundary between the opposing end and the inner surface of the accommodating hole.

ELECTROCHEMICAL SYSTEMS WITH IONICALLY CONDUCTIVE AND ELECTRONICALLY INSULATING SEPARATOR

Resumen de: US2025246757A1

Provided are separator systems for electrochemical systems providing electronic, mechanical and chemical properties useful for a variety of applications including electrochemical storage and conversion. Embodiments provide structural, physical and electrostatic attributes useful for managing and controlling dendrite formation and for improving the cycle life and rate capability of electrochemical cells including silicon anode based batteries, air cathode based batteries, redox flow batteries, solid electrolyte based systems, fuel cells, flow batteries and semisolid batteries. Disclosed separators include multilayer, porous geometries supporting excellent ion transport properties, providing a barrier to prevent dendrite initiated mechanical failure, shorting or thermal runaway, or providing improved electrode conductivity and improved electric field uniformity. Disclosed separators include composite solid electrolytes with supporting mesh or fiber systems providing solid electrolyte hardness and safety with supporting mesh or fiber toughness and long life required for thin solid electrolytes without fabrication pinholes or operationally created cracks.

STABLE ION EXCHANGE MEMBRANES WITH RADICAL SAVENGER

Resumen de: US2025246660A1

Described is a long-lasting, heavy-duty ion exchange membrane comprising a fluorinated ionomer, a CexM1-xOy nanoparticle, and optional additives; where x is 0.2-0.9, y is 1-3, and M is Zr, Gd, Pr, Eu, Nd, La, Hf, Tb, Pd, Pt, or Ni. Optional additives may include reinforcement layers, which may be embedded in the ion exchange membrane. Such membranes are formed from ion exchange polymer dispersions and are useful to form membrane assemblies for fuel cell or water electrolysis applications. The present membranes and membrane assemblies have improved chemical stability and durability in such applications.

POSITIONING DEVICE

Resumen de: US2025246662A1

Provided is a positioning device that is capable of enhancing energy efficiency by enhancing the work efficiency in the positioning and holding of fuel cells when stacking the fuel cells. This positioning device for a stacking device 1 for fuel cells FC to form a fuel battery includes: a bar holder 60 for stacking the fuel cells FC; and positioning bars 71 that are detachably held by the bar holder 60 and hold the fuel cells FC to be stacked, wherein the bar holder 60 is configured to be dividable.

SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM

Resumen de: US2025246658A1

A fuel cell system for a vehicle, has a fuel cell unit that includes a fuel cell stack and a coolant system. A control system is configured to preemptively determine that a fuel cell system power ramp-down event will occur when a decrease in power of the fuel cell system would be required as the vehicle is approaching a portion of a route associated with a low power demand from the fuel cell system. The fuel cell system is controlled by reducing a target inlet coolant temperature, and by applying a first response strategy that involves continuously reducing a flow rate of the coolant flow, and/or a second response strategy that may involve continuously and gradually increasing the flow rate of the coolant flow and then, in some situations, continuously and gradually decreasing the flow rate of the coolant flow.

FUEL CELL SYSTEM INCLUDING A SYSTEM EXHAUST BACKFLOW CONTROL VALVE AND METHODS OF OPERATING THE SAME

Resumen de: US2025246655A1

A power module includes a stack of fuel cells, an anode tail gas oxidizer (ATO) configured to oxidize an anode exhaust output from the stack, a system air blower configured to provide air to the stack, at least one air conduit which fluidly connects the system air blower to the stack, at least one exhaust conduit which fluidly connects the ATO to an exhaust manifold, and a first valve configured to reduce or prevent backflow of system exhaust from the exhaust manifold to the system air blower when the power module is offline.

FUEL CELL SYSTEM

Resumen de: US2025246656A1

A fuel cell system, comprising a fuel cell, an air compressor, a flow rate sensor, a current sensor, a voltage sensor, and a load device and a control unit, so that the required flow rate, the control unit controls the air compressor, a first air stoichiometric ratio a pull-up operation for supplying the cathode gas so that the lower second air stoichiometric ratio than the first air stoichiometric ratio, and performing either a pull-down operation to supply the cathode gas so that the lower second air stoichiometric ratio, in the case where the pull-down operation is being performed, when the first condition is satisfied, the pull-up operation is performed for a first time, when the second condition is satisfied, not perform the pull-up operation.

ELECTRODE COMPRISING CERIA NANOTUBE ANTIOXIDANT, AND MEMBRANE-ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING THE SAME

Resumen de: US2025246640A1

Provided are an electrode including a ceria nanotube antioxidant, and a membrane-electrode assembly (MEA) and a fuel cell including the electrode. More specifically, provided is a fuel cell electrode including a catalyst layer including a ceria nanotube antioxidant, and a catalyst.

EINHAUSUNG FÜR KOMPONENTEN EINER TECHNISCHEN ANLAGE

Resumen de: DE102024102703A1

Es wird eine Einhausung (10) für eine technische Anlage (40) bereitgestellt, die einen einen Innenraum aufweisenden Korpus (11) und wenigstens eine Tür (12, 13) umfasst. Erfindungsgemäß weist die Einhausung (10) zumindest eine Trennwand (23) auf, die den Innenraum in zumindest zwei Zonen (14, 15, 16) aufteilt.

ION EXCHANGE FILTERS USEFUL FOR ELECTROCHEMICAL SYSTEMS

Resumen de: WO2025160211A1

Provided herein are ion exchange filters comprising mixed beds of strong acid cation resins in H form, strong base anion resins in OH form and strong base anion resins in HCO3 form, in specific proportions. The mixed resin beds provide eluates having greater thermal stability and lower electrical conductivity compared to those processed through mixed beds comprising different resin components and proportions. Further provided herein is a method of purifying an aqueous fluid, for example a stream in a fuel cell, a battery, a battery charger or an electrolyzer, by contact with the mixed resin beds of the ion exchange filters described herein.

FUEL CELL SYSTEM AND CONTROL METHOD THEREOF

Resumen de: US2025246654A1

A fuel cell system includes: a fuel cell that generates power by a reaction between hydrogen gas as a fuel gas and oxidant gas; a hydrogen gas supply device that supplies hydrogen gas to the fuel cell; a supply control unit that determines a supply amount and a supply timing of hydrogen gas supplied to the fuel cell; and an atmospheric pressure acquisition unit (atmospheric pressure sensor) that acquires atmospheric pressure, wherein the supply control unit supplies hydrogen gas to the fuel cell at a supply amount and a supply timing determined according to at least atmospheric pressure during soaking in which an operation of the fuel cell is stopped.

MEMBRANE ELECTRODE STRUCTURE FOR FUEL CELL AND FUEL CELL SYSTEM

Resumen de: US2025246647A1

A membrane electrode structure for fuel cell including a membrane electrode assembly including an electrolyte membrane, and a frame member including an inner edge portion defining an opening, the membrane electrode assembly being positioned to face the opening. The frame member includes a first and second frame members formed in a substantially plate shape and overlapping each other, the electrolyte membrane is extended to non-power generation region, the first and second frame members have a first and second holding portions between which the electrolyte membrane in the non-power generation region is sandwiched, and a first through-hole penetrating the first holding portion and a second through-hole penetrating the second holding portion are provided at different positions from each other in a plan view viewed along a stacking direction of the membrane electrode structure.

SEPARATOR PLATE FOR AN ELECTROCHEMICAL SYSTEM

Resumen de: US2025246643A1

The present disclosure relates to a separator plate for an electrochemical system, in particular a fuel cell system. The separator plate has at least one through-opening for passing a fluid through the separator plate, at least one distribution area having a plurality of first channels and first webs formed between each two first channels, and at least one flow field, which is in fluid communication with the through-opening via the distribution area and which has a plurality of second channels and second webs formed between each two second channels. First ends of the first webs face ends of the second webs and/or merge into the ends of at least selected ones of the second webs. First distances between the respective first ends of mutually adjacent first webs are inhomogeneous.

FUEL CELL ACTIVATION APPARATUS

Resumen de: US2025246649A1

A fuel cell activation apparatus activates a fuel battery cell. The fuel cell activation apparatus includes a potential scanning circuit, anode side and cathode side gas supplies, and a controller. The potential scanning circuit applies a voltage to the fuel battery cell. The anode side gas supply supplies a fuel gas as a gas containing hydrogen to the anode layer. The cathode side gas supply supplies an inert gas as a gas containing nitrogen and not containing oxygen to the cathode layer. The controller controls the potential scanning circuit, the anode side gas supply, and the cathode side gas supply. The controller causes the anode side gas supply to supply the fuel gas to the anode layer and causes the cathode side gas supply to supply the inert gas to the cathode layer, while setting the cathode layer to a negative potential through the potential scanning circuit.

SELENIUM-DOPED MAGNETIC COBALT-NICKEL SPINEL FERRITE ELECTROCATALYSTS FOR HYDROGEN EVOLUTION AND METHODS OF PREPARATION THEREOF

Resumen de: US2025246641A1

An electrocatalyst including a substrate and CoxNiyFe2O4 nanoparticles, where x+y=1. The CoxNiyFe2O4 nanoparticles are doped with 0.01 weight percentage (wt. %) to 1.0 wt. % selenium (Se), based on the total weight of the CoxNiyFe2O4 nanoparticles. Further, the CoxNiyFe2O4 nanoparticles have a polygonal shape, and the CoxNiyFe2O4 nanoparticles are dispersed on the substrate to form the electrocatalyst.

ALKALI METAL FUEL CELLS, AND RELATED SYSTEMS AND METHODS

Resumen de: WO2025160572A2

Alkali metal fuel cells, and related systems and methods, are generally described. The description herein comprises materials, designs, and methods of use for an electrical power system using a metal comprising sodium metal as an energy carrier or fuel in an electrochemical reactor wherein the reactant comprises oxygen and comprises materials and designs for an electrolytic reactor producing at least a metal from a metal chloride.

FUEL CELL SYSTEM AND VEHICLE HAVING FUEL CELL SYSTEM

Resumen de: WO2025157354A1

The present invention relates to a fuel cell system (10) comprising: a fuel cell (11) having an anode (12) and a cathode (13); a cathode inlet path (14) for conducting cathode gas into the cathode (13); a cathode exhaust gas path (15) for conducting cathode exhaust gas from the cathode (13) into the surroundings of the fuel cell system (10); a coolant cooler (24); a main coolant line (25) for conducting coolant from the coolant cooler (24) to the fuel cell (11) and for conducting coolant from the fuel cell (11) to the coolant cooler (24); a temperature control unit (40) having a heat exchange portion (41), the heat exchange portion (41) being designed as part of the cathode exhaust gas path (15); a secondary coolant line (23) for conducting the coolant from the coolant cooler (24) into the temperature control unit (40) for the purpose of heat transfer from the coolant to cathode exhaust gas in the heat exchange portion (41); and a moisture path (42) for conducting a water-containing fluid (43) into the heat exchange portion (41). The invention also relates to a vehicle (100) having the fuel cell system (10).

FUEL CELL

Resumen de: US2025246648A1

A fuel cell is configured to suppress the inhibition of gas supply to the power generation unit. A fuel cell, wherein the fuel cell comprises at least a pair of separators and a resin frame; wherein each of the pair of separators has at least one manifold; wherein the pair of separators are adhered via the resin frame; wherein the resin frame has an adhesive layer on both sides; wherein the resin frame has a manifold opening corresponding to the manifold and a power generation opening corresponding to a power generation unit; wherein an inner diameter of the manifold opening is smaller than that of the manifold; and wherein the resin frame has at least one ventilation portion between the manifold opening and the power generation opening.

FUEL CELL ACTIVATION APPARATUS

Resumen de: US2025246657A1

A fuel cell activation apparatus activates fuel cells. The fuel cells include, in order from one side, an anode layer, an electrolyte membrane, and a cathode layer. The anode layer and the cathode layer contain platinum as a catalyst. The fuel cell activation apparatus includes an anode-side gas supply device, a cathode-side gas supply device, and a potential scanning circuit. The fuel cell activation apparatus activates the fuel cells by supplying a fuel gas to the anode layer by the anode-side gas supply device, supplying a low oxygen gas to the cathode layer by the cathode-side gas supply device, and controlling a cathode potential by the potential scanning circuit.

SYSTEM AND METHOD FOR MAXIMIZING THE OPERATING TIME OF FUEL CELL STACKS

Nº publicación: US2025246650A1 31/07/2025

Solicitante:

ROBERT BOSCH GMBH [DE]
Robert Bosch GmbH

Resumen de: US2025246650A1

The presented invention relates to a fuel cell system (100) having a plurality of fuel cell stacks (101, 103, 105) and a control device (107), to a method for operating a fuel cell system (100), and to a vehicle having a fuel cell system (100).