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一种氢燃料电池测试台架气体供给系统变压力控制方法

Resumen de: CN120749185A

本发明公开了一种氢燃料电池测试台架气体供给系统变压力控制方法，包括：判断是否进入“需求流量不变且需求压力改变”模式；上述步骤当判断为是，则计算得到质量流量控制器需要额外增加的质量流量；设定质量流量控制器目标流量为氢燃料电池电堆需求流量；判断是否“当前时刻氢燃料电池电堆实际入口压力已经偏离需求压力超过阈值”；上述步骤当判断为是，则计算背压阀开度修正值；判断“当前计时时间是否已经达到”，将背压阀开度调节恢复到以氢燃料电池电堆气体腔体需求入口压力为闭环控制目标。根据本发明，提高氢燃料电池电堆测试台架压力动态响应能力，同时减小氢燃料电池电堆实际气体流量变化幅度。

一种基于聚芳基二噻吩哌啶的聚合物及其制备方法和应用

Resumen de: CN120737287A

本申请公开了一种基于聚芳基二噻吩哌啶的聚合物及其制备方法和应用，其中聚合物包括具有以下结构通式的聚合单元，，式中，Ar为芳基结构单体，R1和R2各自独立选自烷基或卤代烷基中的任意一种，用于提高聚合物电解质的离子电导率。

一种燃料电池过电位分布快速生成方法

Resumen de: CN120749187A

本发明公开的一种燃料电池过电位分布快速生成方法，属于质子交换膜燃料电池技术领域，具体为：利用燃料电池内部电流分布检测装置，检测得到电流密度分布；选取多个实验参数，通过调整各实验参数，实际检测得到不同工况下电流密度分布，构建样本集；同时测得稳态加载过程的整体过电位和整体电流密度，拟合Tafel方程；基于条件变分自编码器构建并训练电流密度分布生成模型；获取待测工况的实验参数，输入至训练后电流密度分布生成模型，生成待测工况的电流密度分布，根据Tafel方程计算过电位分布。本发明通过快速生成过电位分布，为探究燃料电池稳态下的分布状态提供技术支持，对燃料电池系统控制策略研究及故障诊断具有重要意义。

一种燃料电池低气压环境输出性能预测方法

Resumen de: CN120749182A

本发明公开了一种燃料电池低气压性能预测模型的构建及性能分析的方法，应用于质子交换膜氢空燃料电池技术领域，包括：基于经验公式建立随海拔高度变化的空气压力和密度模型；根据能斯特方程和燃料电池极化方程得到燃料电池单体电压；利用质量守恒原理、电化学特性建立电堆阴极、阳极反应模型；建立基于MAP图的空压机模型和基于非线性喷嘴方程阴极出口管路模型。基于上述模型利用Simulink完成仿真环境，得到仿真结果数据，用于低气压环境下燃料电池性能的预测。本发明避免了盲目开展低气压试验造成的人力物力浪费以及对燃料电池系统可能造成的不可逆的损伤，为后续试验研究提供理论指导和预测分析依据，为燃料电池的低气压性能分析和设计提供有力支持。

一种二氧化碳加氢催化剂的制备方法及其应用

Resumen de: CN120733745A

本发明公开了一种二氧化碳加氢催化剂的制备方法及其应用，属于加氢催化领域。本发明以钒渣为原料，通过钠化焙烧得到含硅、铬、钒的浸出液，加入铝源进行硅元素去除，同时加入有序介孔碳材料，将元素硅和铝转化为有序介孔复合氧化物，作为加氢催化剂载体使用；铟盐、铈盐、镍盐溶于乙醇与载体混合进行等体积浸渍得到加氢催化剂；去除硅的浸出液进行铬、钒分离，得到三氧化二铬和全钒液流电池电解液。该催化剂具有规则的孔道结构，有序介孔提供限域作用，有助于活性组分的分散与锚定，显著提高催化剂活性。

一种液流电池电堆和液流电池系统

Resumen de: CN120749197A

本发明实施例公开了一种液流电池电堆和液流电池系统，液流电池电堆由多个液流电池单体串联组成，液流电池单体包括双极板与电极板一体化结构、电池隔膜与膜框一体化结构以及珠串帘式喷嘴阵列；珠串帘式喷嘴阵列设置于液流电池单体的正反应腔室内和/或负反应腔室内，且珠串帘式喷嘴阵列设置于膜框中间的空腔与电池隔膜的中心位置的膜反应区内；珠串帘式喷嘴阵列包括多个以预设距离排列成阵列的喷嘴单元，用于将电解液喷射至相应电极板和/或相应反应腔室的隔膜上进行反应。本发明通过设置珠串帘式喷嘴阵列将电解液在反应腔室内均匀喷射出来进行反应，解决了液流电池由于电解液流速分布不均所导致的界面传质效率低下且不均匀的技术问题。

FUEL CELL STACK AND FUEL CELL STACK PRODUCTION METHOD

Resumen de: US2025309313A1

A fuel cell stack includes a multilayered cell, a stack case, and an end unit. The fuel cell stack further includes a shock-absorbing member which is disposed between the stack case and the multilayered cell and which receives an impact relative to the multilayered cell. The shock-absorbing member has an end inserted in the stack case and includes a first step portion at the end of the shock-absorbing member for positioning the shock-absorbing member in a vertical direction with respect to a fastening hole provided in the end unit. The end unit includes a second step portion for positioning the shock-absorbing member in a horizontal direction and the second step portion is in contact with the shock-absorbing member. The fuel cell stack further includes a fastening member, the first step portion engages with the second step portion, and the fastening hole is fastened with the fastening member for positioning the end unit and the shock-absorbing member.

POWER GENERATION CELL AND FUEL CELL STACK

Resumen de: US2025309310A1

A membrane electrode structure including a membrane electrode assembly and a frame member made of resin supporting the membrane electrode assembly, the membrane electrode structure having an electrolyte membrane and an electrode, and a separator made of metal, disposed facing the membrane electrode structure, the separator being configured to form a flow path for a reaction gas to flow between the membrane electrode structure and the separator. The frame member includes a first region having an outer edge portion of the frame member, a second region located inside the first region, and a protruding portion provided in the first region and extending outward beyond an outer edge of the separator, and a thickness of the frame member in the first region where the protruding portion is located, is larger than a thickness of the frame member in the second region.

FUEL CELL STACK

Resumen de: US2025309284A1

A fuel cell stack including a cell stacked body, first and second end units, a cooling medium discharge flow path, and a tube arranged in the cooling medium discharge flow path. The second end unit includes a first end surface facing the cooling medium discharge flow path and a second end surface opposite to the first end surface, a through-hole is formed penetrating the second end unit to communicate with a second opening of the tube on downstream side of the cooling medium discharge flow path, the first and second end units include first and second support portions supporting peripheral portions of the first and second ends of the tube, the second support portion includes a tapered portion formed on an inner peripheral surface of the through-hole, and the tapered portion is formed to gradually narrow toward the second end surface of the second end unit.

MANUFACTURING METHOD AND MANUFACTURING APPARATUS OF FUEL CELL MEMBRANE ELECTRODE STRUCTURE

Resumen de: US2025309285A1

A manufacturing method of a fuel cell membrane electrode structure configured to attach a gas diffusion layer to an assembly part in which a catalyst coated membrane having an electrode catalyst layer provided on a surface of an electrolyte membrane is supported by a resin frame member. The manufacturing method includes the steps of: placing the assembly part on a base; applying an adhesive to the assembly part placed on the base along a bonding position between the catalyst coated membrane and the resin frame member; placing the gas diffusion layer on the assembly part to which the adhesive is applied; and pressing the gas diffusion layer placed on the assembly part along the bonding position and injecting a curing accelerator to the adhesive applied to the assembly part along the bonding position through the gas diffusion layer.

THIO-MODIFIED CARBON SUPPORTS AND METHODS THEREOF

Resumen de: US2025309280A1

Aspects of the present disclosure generally relate to an electrocatalyst. The electrocatalyst including a thio-modified carbon support. The thio-modified carbon support including a carbon support, the carbon support including a carbon black. A ligand is coupled to the carbon support. The ligand including a thiol group. The thio-modified carbon support including a metal catalyst coupled to the ligand.

FUEL CELL STACK AND ASSEMBLING METHOD OF FUEL CELL STACK

Resumen de: US2025309282A1

A fuel cell stack including a cell stacked body including power generation cells, a housing surrounding the cell stacked body, and a fixed member fixed to the housing to face an outer surface of the cell stacked body. Each of the power generation cells includes a unitized electrode assembly including a membrane electrode assembly and a frame member having a flexibility and supporting an edge portion of the membrane electrode assembly, and a separator disposed to face the unitized electrode assembly to form a flow path between the separator and the unitized electrode assembly, an edge portion of the frame member includes a protruding portion protruding outward from an edge portion of the separator, and the protruding portion includes a bent end portion bent toward the edge portion of the separator and sandwiched between the fixed portion and the edge portion of the separator.

FUEL CELL STRUCTURE

Resumen de: US2025309283A1

A fuel cell structure includes a tunnel portion which is formed in the separator, bypasses the seal portion, and allows the communication hole and the fluid channel to communicate with each other. The tunnel portion includes tunnel bodies extending from the communication hole toward the fluid channel, a joint channel which joins ends of the tunnel bodies together so as to allow for fluid communication through the ends, and openings which allow the joint channel and the fluid channel to communicate with each other. The tunnel bodies include an end tunnel body connected to an end of the joint channel. The end tunnel body is connected to the joint channel at an acute angle and a connection portion between the joint channel and the end tunnel body is curved in an arc.

METHOD FOR MANUFACTURING MEMBRANE ELECTRODE ASSEMBLY

Resumen de: US2025309291A1

In a first stacked body providing step, a first stacked body, in which a first ionomer material having an ion exchange capacity of less than a predetermined value and a first electrode are stacked, is provided. In a second stacked body providing step, a second stacked body, in which a second ionomer material having an ion exchange capacity of equal to or greater than the predetermined value and a second electrode are stacked, is provided. In a substrate providing step, an electrolyte substrate is provided. In a swelling step, the first stacked body, the second stacked body, and the electrolyte substrate are caused to swell. In a joining step, the electrolyte substrate and the first ionomer material of the first stacked body are joined together, and the electrolyte substrate and the second ionomer material of the second stacked body are joined together.

FUEL CELL SYSTEM

Resumen de: US2025309289A1

A fuel cell system including a power generator including a fuel cell stack that generates power with fuel gas and oxidant gas, the fuel gas supplied to an anode, the oxidant gas supplied to a cathode, and a fuel supply line connected to a fuel inlet leading to the anode, a circulation system including a fuel off-gas line connected to a fuel off-gas outlet leading to an outlet of the anode, a heat exchanger in the fuel off-gas line, and a recirculation line downstream of the heat exchanger in the fuel supply line and the fuel supply line; and a condensed water line branching from the downstream of the heat exchanger discharging condensed water from the fuel off-gas and condensed by the heat exchanger, wherein the recirculation line is connected to the fuel supply line above a branch point between the fuel off-gas line and the condensed water line.

FUEL CELL SYSTEM, VEHICLE, AND METHOD OF MEASURING IMPEDANCE

Resumen de: US2025309297A1

A fuel cell system includes a fuel cell, a power storage, an alternating-current load source, and a measuring unit. The power storage is configured to store electric power. The alternating-current load source is coupled on a path between the fuel cell and a load. The measuring unit is configured to measure an impedance of the fuel cell. The measuring unit is configured to determine a correction value with respect to a reference impedance value in a state where a load current does not flow from the fuel cell to the load, the correction value taking into consideration a generation of a noise due to the load current, and measure the impedance of the fuel cell, based on the determined correction value.

Anordnung elektrochemischer Zellen und Verfahren zum Betrieb eines Stapels elektrochemischer Zellen

Resumen de: DE102024108733A1

Eine Anordnung (1) elektrochemischer Zellen (2), insbesondere Elektrolysezellen, umfasst eine mehrere, jeweils in einem Zylinder (15, 16) geführte Kolben (18) aufweisende hydraulische Kompressionsvorrichtung (7), welche zur Ausübung einer Druckkraft auf die gestapelten Zellen (2) ausgebildet ist. Die Zylinder (15, 16) sind durch mindestens eine zum Druckausgleich vorgesehene Querverbindung (12, 13) miteinander verbunden.

Verfahren zur Herstellung eines Kühlers

Resumen de: DE102024003247A1

Die Erfindung betrifft ein Verfahren zur Herstellung eines Kühlers (1) aus mehreren Bauteilen (2, 3), wobei- zumindest eines der Bauteile (2, 3) als wellenförmiges Bauteil (2) mit einem wellenförmigen Querschnitt ausgebildet ist und- das zumindest eine wellenförmige Bauteil (2) im Bereich von an Wellentälern und/oder Wellenbergen ausgebildeten ebenen Anlagebereichen (A1 bis A3) an dem zumindest einen weiteren Bauteil (3) angelegt wird und anschließend in den Anlagebereichen (A1 bis A3) mit diesem unter Ausbildung von Schweißnähten (S1 bis S3) verschweißt wird.Erfindungsgemäß ist vorgesehen, dass- die Schweißnähte (S1 bis S3) in einem Laserstrahlschweißverfahren erzeugt werden, indem eine Anzahl von Laserstrahlen (LS) am jeweiligen Anlagebereich (A1 bis A3) auf eine Oberfläche zumindest eines der Bauteile (2, 3) geführt wird, und- eine Gesamtbreite (bL) der Anzahl von Laserstrahlen (LS) derart gewählt wird, dass diese am jeweiligen Anlagebereich (A1 bis A3) an einer Auftreffposition auf der Oberfläche des zumindest einen Bauteils (2, 3) mindestens dem 1,1-Fachen einer Breite (bF) des Anlagebereichs (A1 bis A3) entspricht.

Brennstoffzellensystem und Fahrzeug mit dem Brennstoffzellensystem

Resumen de: DE102024109017A1

Die hier offenbarte Technologie betrifft erfindungsgemäß ein Brennstoffzellensystem (10), aufweisend eine Brennstoffzelle (11) mit einer Anode (12) und einer Kathode (13), einen Kathodeneinlasspfad (14) zum Leiten von Kathodengas in die Kathode (13), einen Kathodenauslasspfad (15) zum Leiten von Prozessgas aus der Kathode (13) in die Umgebung des Brennstoffzellensystems (10), wobei im Kathodeneinlasspfad (14) ein Kompressor (16) zum Komprimieren des Kathodengases angeordnet, wobei im Kathodenauslasspfad (15) eine durch Prozessgas antreibbare Turbine (17) angeordnet ist, und eine Überlastkupplung (18) für eine überlastgeregelte Drehmomentübertragung zwischen dem Kompressor (16) und der Turbine (17). Die erfindungsgemäße Technologie betrifft ferner ein Fahrzeug (100) mit dem Brennstoffzellensystem (10).

MANUFACTURING METHOD FOR MEMBRANE ELECTRODE ASSEMBLY AND MEMBRANE-ELECTRODE ASSEMBLY

Resumen de: US2025309279A1

A manufacturing method for a membrane electrode assembly includes: a placing-frame-member step of placing a frame member on a suction plate; a placing-electrode-catalyst-layer step of placing an electrode catalyst layer on the frame member so as to have a circumferential edge of the electrode catalyst layer overlapped with a margin of an opening of the frame member; a placing-electrolyte-membrane step of placing an electrolyte membrane on an opposite side of the electrode catalyst layer to the frame member; and a peeling-protective-sheet step of peeling a protective sheet. A circumferential edge of the electrolyte membrane is placed beyond that of the electrode catalyst layer. A two-layer portion of the frame member and electrolyte membrane and a three-layer portion of the frame member, electrode catalyst layer, and electrolyte membrane are sequentially formed in the placing-electrolyte-membrane step from the circumferential edge of the electrolyte membrane to the margin of the opening.

SYSTEMS FOR ROUTING OF FUEL CELL BYPRODUCTS OF A VEHICLE

Resumen de: US2025309294A1

In some examples of this technology, a vehicle is disclosed that includes a fuel cell exhaust system for routing of fuel cell byproducts of the vehicle. The vehicle includes at least two fuel cells. Each of the at least two fuel cells have an exhaust port through which byproducts of fuel cell operation flow. The vehicle includes at least two outlet couplers respectively coupled, at a first end, to the exhaust port of each of the fuel cells. The vehicle includes at least two water separators respectively coupled, at an inlet end, to a second end of each of the at least two outlet couplers. The vehicle includes at least two vertical exhaust pipes respectively coupled to a top side of each of the at least two water separators. The water separators separate water from steam produced by the fuel cells.

FUEL CELL STACK AND WELDING METHOD

Resumen de: US2025309286A1

A fuel cell stack including a joined separator, and a membrane electrode structure including a membrane electrode assembly disposed between a pair of the joined separators, the membrane electrode assembly including an electrolyte membrane and an electrode. The joined separator includes a first metal separator and a second metal separator welded together along a welding line, and the second metal separator includes a convex portion formed along the welding line so as to protrude toward the first metal separator.

FUEL CELL SYSTEM

Resumen de: US2025309288A1

A fuel cell system including a power generator including a fuel cell stack generating power with fuel and oxidant gas and oxidant gas, a combustor that combusts combustible gas introduced from a combustion gas inlet, and a fuel supply line connected to a fuel inlet leading to an anode of the generator, and a circulation system including a fuel off-gas line connected to a fuel off-gas outlet leading to an outlet of the anode, a heat exchanger in the fuel off-gas line, a combustion gas line branching from a downstream of the heat exchanger in the fuel off-gas line and connected to the combustion gas inlet, a recirculation line branching from downstream of the heat exchanger in the fuel off-gas line and connected to the fuel supply line, and a pressure control valve adjusting a pressure of the recirculation line distributing the fuel off-gas at a predetermined distribution ratio.

MANUFACTURING METHOD OF FUEL CELL SEPARATOR

Resumen de: US2025309281A1

A manufacturing method of a fuel cell separator including pressing a separator substrate having a first surface and a second surface and made of a metal, into an uneven shape to form a gas flow path on the first surface for allowing a reaction gas to flow and a cooling flow path on the second surface for allowing a cooling medium to flow, roughening the second surface to increase a surface roughness of the second surface, and forming a coating having corrosion resistance on the first surface and the second surface after the roughening.

Einsatz Ketazin-basierter Redoxspezies in Elektrolyten für Redox-Flow-Batterien

Nº publicación: DE102024108919A1 02/10/2025

Solicitante:

FORSCHUNGSZENTRUM JUELICH GMBH [DE]
Forschungszentrum J\u00FClich GmbH