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ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL STACK, AND MANUFACTURING METHODS FOR SAME

Resumen de: EP4804260A1

0001 Object To provide an electrochemical cell which exhibits high joint strength between metal members while suppressing warpage of the metal members, an electrochemical cell stack, and methods of manufacturing the electrochemical cell and the electrochemical cell stack. 0002 Means for solution The electrochemical cell includes a cell main body 20 including an air electrode, an electrolyte layer, and a fuel electrode stacked together and shaped, a first metal member 18 joined to the cell main body 20, a second metal member 17 joined to the first metal member 18 by means of welding after being brought into contact with the first metal member 18 in a stacking direction of the cell main body 20 to be located at a predetermined position of the first metal member 18; and a third metal member 16 joined to the second metal member 17 by means of welding, on a side of the second metal member 17 opposite its side joined to the first metal member 18, after being brought into contact with the second metal member 17 in the stacking direction of the cell main body 20 to be located at a second predetermined position of the second metal member 17. A region where metal members are joined by welding is defined as a weld portion 30, and a fusion proceeding direction of at least a part of the weld portion 30 is inclined in relation to the stacking direction of the cell main body 20.

ELECTROCHEMICAL CELL ASSEMBLY

Resumen de: WO2025093133A1

The invention relates to an electrochemical cell assembly, comprising a stack of cell units, wherein each cell unit has a periphery and a central portion surrounded by the periphery, the periphery has a first flange portion (90-1) and an opposite second flange portion (90-2), the flange portions of adjacent cell units overlie one another and are separated by a gap (88-1, 88-2), wherein between two adjacent cell units, there is provided a fluid flow path comprising an inner flow path between the central portions of adjacent cell units and an outer flow through said gaps, and a flow restriction device (112) comprising at least one flow restriction member (114-1, 114-2), said flow restriction device being configured to reduce or prevent fluid flow along the outer flow path.

ELECTROCHEMICAL CELL ASSEMBLY

Resumen de: WO2025093132A1

The invention relates to an electrochemical cell assembly (10), comprising a base plate, an end plate (26), a stack (12) comprising a plurality of cell units (14) stacked upon one another, said stack (12) being arranged between said base plate and said end plate, and an electrically conductive power transmission device (38) comprising a connector (40) that is located on a side of the end plate that is facing away from the stack, the power transmission device spanning the end plate and being electrically connected to the stack, wherein the power transmission device is attached to the end plate by a fastening device (42) at a portion of the power transmission device that is located between an electrical connection to the stack and the connector.

EXCAVATOR

Resumen de: EP4803705A1

0001 This excavator includes a slewing body rotatably disposed on a traveling device and includes: a hydrogen tank that stores hydrogen; a fuel cell that generates electric power by consuming the hydrogen in the hydrogen tank; and an electric pump device that is driven by the electric power generated by the fuel cell to discharge working fluid. The hydrogen tank and the electric pump device are housed in a housing space within the slewing body. The fuel cell is disposed in the slewing body at a distance from the housing space.

FRAME FOR A HALF-CELL OF A REDOX FLOW BATTERY

Resumen de: WO2025093190A1

The aim of the invention is to improve the internal sealing tightness in the half-cells (2a, 2b) of an individual cell (2) and between adjacent individual cells (2) in a cell stack (10) of a redox flow battery (1) and to reduce the possibility of potential leakage paths of electrolyte liquids (15a, 15b) while simultaneously reducing the manufacturing complexity for an individual cell (2) and a cell stack (10). This is achieved in that a web (50) is provided in the frame (5a, 5b) for a half-cell (2a, 2b) of a cell stack (10) of a redox flow battery (1), said web dividing the at least one flow channel (44a, 44b) into two flow channel branches; each of the flow channel branches separated by the web (50) is connected to a respective opening (49a, 49b) which passes through the frame (5a, 5b); and the web (50) is arranged in the region of the openings (49a, 49b), wherein a first end of each opening (49a, 49b) is connected to the respective flow channel branch of the at least one flow channel (44a, 44b) at the first end face (43), and the opposite second end of each opening (49a, 49b) opens out into the frame (5a, 5b) in the direction of the recess (6a, 6b) at a distance to the peripheral surface (48) of the depression (40) and is connected to the recess (6a, 6b) in the frame (5a, 5b), said web (50) extending on the first end face (43) at least between the region of the openings (49a, 49b) and the peripheral surface (48) of the depression (40).

HYDROGEN TANK DEVICE OF CONSTRUCTION MACHINE, AND CONSTRUCTION MACHINE INCLUDING SAME

Resumen de: EP4803707A1

0001 This hydrogen tank device includes: a frame body that is plate-shaped and has a rectangular shape as viewed from one side in a first direction; and a plurality of hydrogen tanks mounted parallel to each other on the frame body and each of which extends in the longitudinal direction of the frame body. The frame body includes, on the one side in the first direction, a mounting surface to be mounted on a frame of a construction machine.

METHOD FOR PREPARING A MATERIAL TO BE USED AS GASKET IN ELECTROCHEMICAL CELL ASSEMBLIES

Resumen de: WO2025093123A1

The invention relates to methods for preparing a material to be used as gasket (30) in electrochemical cell assemblies, said methods comprising providing a vermiculite material (300) and performing a preconditioning treatment (102) on said vermiculite material (300), said preconditioning treatment (102) comprising a pressing process and either or both of a humidity control process and a prebaking process. The invention also relates to the use of such a gasket in an electrochemical cell assembly as well as to a method for preparing an electrochemical cell assembly.

METHOD FOR PROCESSING A SUBSTRATE FOR AN ELECTROCHEMICAL CELL

Resumen de: WO2025093517A1

The invention relates to a method for processing a substrate for an electrochemical cell (10) by means of a processing device (12) which comprises a processing unit (14), in particular a laser drilling unit, and a cooling unit (16), wherein in at least one processing step (18), thermal energy is transferred into the substrate for an electrochemical cell (10) by means of the processing unit (14), and in at least one cooling step (20) the substrate for an electrochemical cell (10) is cooled after being processed. According to the invention, in the at least one cooling step (20), parts of the substrate for an electrochemical cell (10) are cooled by means of the cooling unit (16).

EXCAVATOR

Resumen de: EP4803706A1

This excavator includes: a slewing body rotatably mounted on a traveling device and including a cabin in which a driver seat is disposed; a hydrogen tank disposed within the slewing body; a fuel cell that generates electric power by consuming hydrogen in the hydrogen tank; and a filling receptacle that is mounted on the slewing body, includes a filling port at a distal end thereof, and leads to the hydrogen tank. The filling port is disposed on the slewing body at a position higher than the lower surface of the slewing body and lower than the seating surface of the driver seat.

APPARATUS FOR COOLING INDIVIDUAL SOURCES OF HEAT ON A PRINTED CIRCUIT BOARD ASSEMBLY

Resumen de: WO2025091077A1

The present invention provides an apparatus for cooling individual sources of heat disposed at locations on one or more printed circuit board (PCB) assemblies. The apparatus includes a bladder having a plurality of apertures positioned to substantially align with and provide an independent air stream to the location of each individual source of heat, thereby providing targeted forced convection cooling to each individual heat source. The apparatus further includes a source of forced air directed to inflate the bladder and thereby create a flow of air into the bladder that egresses through the plurality of apertures. The bladder has overall dimensions such that when fastened in an arrangement that substantially aligns the apertures with heat sources, the bladder, once inflated, extends over the one or more PCB assemblies in which the heat sources are located and causes substantially uniform air temperature and flow of air egressing through individual apertures.

SYSTEM AND METHOD OF CONTROLLING POWER SPLIT IN A POWERTRAINS SYSTEM

Resumen de: WO2025093131A1

The present disclosure relates to a computer system (100) for controlling energy or power utilization from a powertrain system (12) of a vehicle (10) having a battery system (14), a fuel cell system (16) and one or more electric machines (18) connected to the battery system (14) and the fuel cell system (16), the computer system (100) comprising processing circuitry (102) configured to: determine transport mission characteristics for an upcoming transport mission for the vehicle (10) based on transport mission data containing at least gross combined weight (GCW) of the vehicle (10), topology data of an intended route for the transport mission and vehicle speed under the transport mission; determine a power demand for performing the transport mission based on the determined transport mission characteristics; based on the determined transport mission characteristics and determined power demand, generate a vehicle usage profile for a number of power split ratio settings between the battery system (14) and the fuel cell system (16), wherein the vehicle usage profile is defined by points on the pareto front between fuel consumption of the fuel cell system (16) and a battery ageing parameter of the battery system (14); determine an allowable battery ageing factor of the battery system (14); identify, on the determined pareto front, a battery ageing penalty value that provides a desirable power split ratio between the battery system (14) and the fuel cell system (16) for performing

METHOD FOR PROCESSING A SUBSTRATE FOR AN ELECTROCHEMICAL CELL BY MEANS OF A PROCESSING DEVICE

Resumen de: WO2025093516A1

The invention relates to a method for processing a substrate for an electrochemical cell (16a) by means of a processing device (10a) which comprises a processing unit (12a), in particular a laser drilling unit, wherein in at least one processing step (46a), at least one recess, in particular a through-opening (14a) for an electrochemical cell (16a) is introduced into the substrate by means of the processing unit (12a), and in the at least one processing step (46a), the substrate (16a) is processed by means of the processing unit (12a). In at least one pre-processing step (48a), the substrate (16a) is divided into a plurality of sub-surfaces (18a), and in the at least one processing step (46a), a sequential processing is carried out on the sub-surfaces (18a).

ENERGY PRODUCTION AND STORAGE SYSTEM

Resumen de: WO2025093251A1

An energy production and storage system comprises a power input connection (10) for a renewable energy source (2); an electrolysis device (16) for electrolysis of water to produce oxygen, hydrogen, and heat; an electrical energy storage device (14); a two-way grid connection (12) coupled to an external electrical grid (4); and a controller (8). The controller (8) is configured to: (i) receive information relating to: actual or potential energy production from the renewable energy source (2), the amount of stored energy in the electrical energy storage device (14), and balancing requirements for the external electrical grid (4); (ii) use the energy from the renewable energy source (2) to power the electrolysis device (16) and/or for storage in the energy storage device (14); and (iii) based on the received information, operate the energy production and storage system as a balancing service provider by either: drawing power from the grid (4) to supply the electrolysis device (16), or supplying power to the grid (4) from the electrical energy storage device (14), thereby acting as a switch to aid in balancing for the external electrical grid (4).

METHOD FOR OPERATING A FUEL CELL DEVICE, AND FUEL CELL DEVICE

Resumen de: WO2025093365A1

The invention relates to a method (10a; 10b) for operating a fuel cell device (12a) which is connected to a power network, wherein in at least one method step, the provision of electric current by the fuel cell device (12a) is adjusted in the event of a temporary drop in voltage of the power network. It is proposed that a fluid supply (14a) of the fuel cell device (12a) during the temporary drop in voltage of the power network is at least partially maintained.

ELECTROCHEMICAL CELL DEVICE AND METHOD FOR PRODUCING AN ELECTROCHEMICAL CELL DEVICE

Resumen de: WO2025093515A1

The invention relates to a method (10) for producing an electrochemical cell device (12), in particular a half-cell, wherein in at least one step, a metal support (14) of the electrochemical cell device (12) is provided, said metal support having at least one recess (16), and in at least one step, at least one functional layer (18, 20, 22, 24) of the electrochemical cell device (12) is applied onto the metal support (14). According to the invention, in at least one step, the at least one functional layer (18, 20, 22) is arranged on the metal support (14) in an open state of the at least one recess (16).

METHOD AND SYSTEM FOR CONVERTING ENERGY

Resumen de: WO2025093262A1

The invention relates to a method (100) for operating a system (200) for converting energy. The method (100) according to the invention has the steps of operating (101) an energy converter (205) of the system (200) by removing liquid hydrogen from at least one hydrogen tank (203) of a hydrogen tank system (201) for storing hydrogen, determining (103) an expected switch-off time of the energy converter (205), and operating (105) the energy converter (205) by removing gaseous hydrogen from the at least one hydrogen tank (203) starting from a changeover time prior to the expected switch-off time in order to evaporate liquid hydrogen collected in an evaporator (217) of the hydrogen tank system.

Components and methods for redox flow batteries

Resumen de: GB2704418A

An isolator plate 112 for an assembly between a structural end plate 104 and a stack component 108 in a cell stack for a redox flow battery (Fig. 1, 100) may comprise a planar region 114 for isolating, in use, the end plate from the stack component; and a spigot 118 extending away from a plane of the planar region, for extending, in use, through an aperture in the structural end plate, and defining a fluid conduit extending through the planar region. A coupling (Fig. 10, 200) configured for permanent attachment to the spigot and defining an internal conduit (Fig. 10, 204) may comprise a first end (Fig. 10, 206) configured for attachment to the spigot and a second end (Fig. 10, 272) configured to allow releasable connection of a complementary fluid connector. A cell stack 102 for a redox flow battery may comprise a structural end plate assembled with the isolator plate such that the spigot extends through an aperture in the end plate, and the coupling connected to the spigot. Figure 4

用于阴离子交换膜的聚合物

Resumen de: US12617889B1

0000 Polymers for use as an Anion Exchange Membranes (AEMs) and produce an alkaline stable AEM. The multinuclear aromatic and amine-functionalized acetal (ketal) come together to form a polymer with a hydrocarbon backbone that is stable to alkaline conditions. The use of an amine-functionalized acetal allows for the incorporation of a stable cation, dimethyl piperidinium, in the most stable confirmation while avoiding incorporation of a CF3 group with every cation. The amines within the amine-functionalized polyaromatic that results from this polymerization are quaternized to form the desired cationic groups to create an AEM that is mechanically robust, conductive, and stable.

一种大功率测试台用燃料电池堆热管理装置

Resumen de: CN119170826A

The invention relates to the technical field of fuel cell testing, in particular to a fuel cell stack thermal management method and device for a high-power testboard, and the method employs a mode that two thermal management subsystems are connected in parallel, cooperates with a three-way valve, and automatically controls and adjusts the opening degree of each valve according to different working powers of a fuel cell stack and a self-adaptive algorithm. The three-way valve properly distributes the flow of cold water and hot water by adjusting the opening degree, the temperature of the cold water is achieved by conducting heat exchange with external cooling water through the plate heat exchanger, and accurate temperature adjustment is achieved by controlling the opening degree of the pneumatic adjusting valve to adjust the flow of the external cooling water. The high-power excellent thermal management of the fuel cell stack can be realized, meanwhile, the accuracy and stability of temperature control during low-power operation of the fuel cell stack are considered, an excellent temperature control effect in a wide power range is realized, and compared with a series connection mode, the mode of connecting the two thermal management subsystems in parallel can reduce the flow resistance and improve the temperature control efficiency. And the flow resistance of cooling water is reduced.

氧化锡粉末及其制造方法以及燃料电池用电极催化剂

Resumen de: WO2025192311A1

The present invention addresses the problem of providing a tin oxide powder that, when used as a carrier of a catalyst, is capable of improving the durability of the carrier. This tin oxide powder is composed of an aggregation of tin oxide secondary particles configured from aggregates of primary particles of tin oxide. The tin oxide powder has pores having a diameter of 10 nm or less and pores having a diameter greater than 10 nm. The tap density of the tin oxide powder is 1.0 g/cm3 or greater. When a log differential pore volume distribution in a pore diameter range of 1-300 nm is measured using a nitrogen adsorption method, it is preferable to have a first peak at 1-10 nm and a second peak at greater than 10 nm but not greater than 300 nm.

燃料电池系统及其冷启动的控制方法和控制装置

Resumen de: WO2025156085A1

The present application discloses a control device for controlling cold starting of a fuel cell system. The fuel cell system comprises a stack, a load and a cooling loop; the stack comprises an electrode plate and a membrane electrode assembly; and the control device comprises: a measurement module, configured to measure an initial temperature T0 of the stack; a calculation module, configured to calculate an internal temperature T of the stack on the basis of the initial temperature T0 and the output current I and the output voltage U outputted from the stack to a load; a determination module, configured to compare the calculated internal temperature T with a threshold temperature Tth; and an adjustment module, configured to, when the internal temperature T is greater than the threshold temperature Tth, increase the flow volume Qcoolant of a coolant in a cooling circuit flowing through the stack. The present application further discloses a fuel cell system comprising the control device, a control method for the fuel cell system and a computer readable storage medium. The present application can realize rapid and safe cold starting of the fuel cell system.

燃料电池系统

Resumen de: CN122716360A

本发明提供一种燃料电池系统，具备：储水部，其储存通过燃料电池的发电而产生的液态水；排水阀，其设置在与储水部连接的排水流道；以及控制部，其控制喷射器，使得根据发电负荷相互交替地重复阳极气体的喷射和非喷射，并且根据阳极气体的压力将排水阀从将排水流道打开的开启位置切换为将排水流道切断的关闭位置。控制部根据喷射器的阳极气体的非喷射时阳极气体的压力的下降比例，将排水阀从开启位置切换为关闭位置。

表面改性的自由基淬灭剂、改性多孔骨架膜、质子交换膜及制备方法

Resumen de: CN122716353A

本申请提供表面改性的自由基淬灭剂、改性多孔骨架膜、质子交换膜及制备方法。本申请的自由基淬灭剂，自由基淬灭剂的颗粒粒径为2 nm～20 nm，自由基淬灭剂选自氧化铈、氧化锆、二氧化锰、二氧化钛及氧化铝中的至少一者；保护膜，形成在互穿三维网络自由基淬灭剂颗粒表面，互穿三维网络保护膜具有硅氧烷网络结构。本申请表面改性的自由基淬灭剂，通过在自由基淬灭剂表面形成完全覆盖或者是部分覆盖的保护膜，保护膜具有硅氧烷网络，后续配合多孔骨架膜上原位构筑的硅氧烷网络，使得表面改性的自由基淬灭剂可以均匀分散且锚定在质子交换膜中，提高质子交换膜的耐久性，减弱化学衰减影响。

一种羽毛绒基N、S共掺杂碳毡电极及其制备方法与应用

Resumen de: CN122716350A

本发明提供了一种羽毛绒基N、S共掺杂碳毡电极及其制备方法与应用，属于全钒液流电池电极材料技术领域。本发明以羽毛绒为原料，经预处理和预炭化后，与KOH和ZnCl2混合活化，酸洗、水洗至中性，得到N、S共掺杂多孔碳；将所得多孔碳分散于溶剂中形成分散液，将碳毡多次浸渍于分散液中，每次浸渍后干燥，最后经热处理，即得羽毛绒基N、S共掺杂碳毡电极。所得电极中N、S元素均匀掺杂于碳骨架中，与碳毡基底之间形成牢固的碳‑碳化学键合界面。本发明利用羽毛绒角蛋白天然富含N、S元素的特点实现原位共掺杂，有效提升了电极的催化活性和循环稳定性，且原料来源广泛、工艺简洁，适用于大规模生产。

一种多酸液流电池电解液及多酸液流电池

Nº publicación: CN122716375A 08/09/2026

Solicitante:

西安热工研究院有限公司华能国际工程技术有限公司

Resumen de: CN122716375A

本发明属于电化学储能领域，提供一种多酸液流电池电解液及多酸液流电池。所述多酸液流电池电解液，包括多酸活性物质、支持电解质和溶剂；所述支持电解质包括第一组分和第二组分；所述第一组分为硫酸，硫酸的浓度为0.1‑2 mol/L；所述第二组分为磷酸、柠檬酸或甲磺酸，第二组分的浓度为0.02‑0.5 mol/L；所述多酸活性物质为正极活性物质或负极活性物质。本发明在不影响多酸活性物质稳定性的前提下，极大地提高了电解液的电导率。