Alerta

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).

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).

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

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.

A METHOD OF PREPARING AN INTERMEDIATE PRODUCT FOR FABRICATING A COMPOSITE GASKET, AN INTERMEDIATE PRODUCT FOR FABRICATING A COMPOSITE GASKET, A METHOD OF FABRICATING A COMPOSITE GASKET, AND A COMPOSITE GASKET

Resumen de: EP4803494A1

A method of preparing an intermediate product for fabricating a composite gasket, the intermediate product being a paste containing a powdered sealing material with additives, a solvent, a binder, and a plasticizer, comprising a step of preparing a powdered sealing material with an additive and a step of mixing the powdered sealing material with a solvent and a binder and a plasticizer, according to the invention is characterized in that in the step of preparing a powdered sealing material, strontium aluminate is used as an additive in a weight ratio of 10% to 60% of the total weight of the powdered sealing material, the strontium alum inate being provided in the form of a powder having particles with a size of 0.2 µm to 1 mm. The object of the invention is also an intermediate product for fabricating a gasket for a layered device, being a paste fabricated with the method of the invention, a method of fabricating a gasket from this intermediate product, and a gasket.

END PLATE FOR A CELL STACK OF A REDOX FLOW BATTERY

Resumen de: WO2025093662A1

The aim of the invention is to provide an end plate (100) for a cell stack (10) of a redox flow battery (1), said end plate having a higher degree of mechanical and chemical resistance than the known prior art. This is achieved in that a press component (A) is provided for pressing half cells (2a, 2b) stacked in the cell stack (10) of the redox flow battery (1) against each other, and at least one channel component (B) is provided which forms at least one flow channel (K) for supplying or discharging electrolyte liquid (15a, 15b) into or out of the cell stack (10) of the redox flow battery (1), wherein the press component (A) contacts the channel component (B) outside of the flow channel (K) in order to fix the channel component (B) against the press component (A), the channel component (B) is made of an acid-resistant channel plastic, and the press component (A) is made of a press plastic which differs from the channel plastic, said press plastic having a modulus of elasticity of at least 7500 MPa.

METHOD FOR PRODUCING CATALYST-COATED MEMBRANES FOR A FUEL CELL OR ELECTROLYSIS CELL OF AN ELECTROCHEMICAL DEVICE

Resumen de: WO2025131954A1

In a method for producing catalyst-coated membranes for a fuel cell or electrolysis cell of an electrochemical device, the respective catalyst-coated membrane carries a first electrode on a first side of the membrane and a second electrode on an opposite, second side of the membrane, said method comprising steps as follows: Providing a carrier foil (11) which is wound up in roll form and intermittently accommodates first electrodes. Providing membrane blanks. Providing carrier foil blanks which accommodate second electrodes. Unwinding the carrier foil (11) which intermittently accommodates the first electrodes and detecting the position of the first electrodes on the unwound carrier foil (11). Arranging the membrane blanks and the carrier foil blanks on the unwound carrier foil, depending on the detected position of the first electrodes on the unwound carrier foil (11), in such a way that there is an arrangement of a first electrode on a first side of each membrane blank and a second electrode on a second side of each membrane blank in a defined relative orientation. Compressing and heating the arrangement composed of the carrier foil (11), the membrane blanks, the electrodes and the carrier foil blanks. Separating the membrane blanks together with the electrodes accommodated by the membrane blanks from the carrier foil and the carrier foil blanks.

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.

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.

燃料电池用催化剂层

Resumen de: CN122716345A

燃料电池用催化剂层至少具有基材、碳载体和催化剂金属。碳载体的比表面积为1000～1500m2/g。式(I)所示的催化剂层的厚度变薄率A为45%以下。由式(II)表示的催化剂层的变形率B为50％以下。A＝(1‑T1/T0)×100…(I)；B＝Di/T0×100…(II)，T0是催化剂层的初始厚度。T1是催化剂层的耐久处理后的厚度。Di是作为通过催化剂层的微小压坏试验得到的负荷变异曲线中的拐点而得到的变形量。耐久处理在说明书或请求保护的范围所记载的条件下实施。

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.

燃料电池系统

Resumen de: CN122716376A

本申请涉及一种燃料电池系统。该燃料电池系统包括：燃料电池堆；阴极气体供应流路，其连接到燃料电池堆；阴极废气排放流路，其连接到燃料电池堆；旁通流路，其连接阴极气体供应流路和阴极废气排放流路以便绕过燃料电池堆；旁通阀，其被设置在旁通流路中，并且包括配置成旋转以调节气体流量的阀体；以及用于整流的第一板状部，其被设置在旁通流路的位于阀体下游的部分中，其中，用于整流的第一板状部包括与阀体的以预定旋转角度定位的外边缘相邻的第一近端并且沿着旁通流路的延伸方向延伸。

一种用于全钒液流电池的漏液保护装置

Resumen de: CN224732764U

本实用新型涉及液流电池技术领域，具体公开了一种用于全钒液流电池的漏液保护专职，包括：电池本体和防护壳体。所述防护壳体包括外壳、导流板以及积液管，所述外壳套接在电池本体的外部，导流板从上至下设置有多个，导流板的一侧与电池本体接触，另一侧连接在外壳上，导流板从电池本体向外壳倾斜向下设置，外壳上开设有导流孔，导流孔位于导流板与外壳接触的一侧的上方，导流孔与积液管连通，积液管上连通有通风装置；本实用新型的导流板能将泄漏的电解液迅速导离电池外壁，引至积液管集中收集，同时通风装置能及时排出有害气体，有效解决了漏液腐蚀电池本体及产生安全隐患的问题。

一种便携式氢能动力总成系统

Resumen de: CN224733473U

本实用新型公开了一种便携式氢能动力总成系统，包括氢能燃料电池模块、锂电池模块、电磁阀、动力总成控制器以及控制器开关；控制器开关设置在锂电池模块和动力总成控制器之间，闭合控制器开关后，由锂电池模块给动力总成控制器提供工作电源；动力总成控制器连接氢能燃料电池模块、锂电池模块以及电磁阀；氢能燃料电池模块包括进气管、排气管以及氢能燃料电池堆，电磁阀控制进气管与排气管的开关；动力总成控制器开启工作后，动力总成控制器控制电磁阀打开进气管与排气管，氢能燃料电池堆发电并提供电源给动力总成控制器与锂电池模块，动力总成控制器控制氢能燃料电池堆通过动力输出端口对外输出电源。

燃料电池系统

Resumen de: CN122716356A

本发明提供一种燃料电池系统，具备根据要求电力对阳极气体供给/排出部和阴极气体供给/排出部进行控制的控制部。阴极气体供给/排出部具有设置在旁通流道的第一阀和设置在阴极排出流道的第二阀。当要求电力下降规定程度以上时，控制部将第一阀的阀开度逐渐增大，并且将第二阀的阀开度减小，使得阴极供给流道的阴极气体的压力逐渐下降。

一种燃料电池系统

Resumen de: CN224732762U

本实用新型公开了一种燃料电池系统，包括：电堆单元，第一空气流路，送燃料流路，阳极尾气回收流路，阴极尾气回收流路，该系统能够通过第一空气流路向电堆单元的阴极提供空气，并且通过送燃料流路向电堆单元的阳极提供燃料，然后再通过阴极尾气回收流路回收电堆单元的阴极尾气，通过阳极尾气回收流路回收电堆单元的阳极尾气。其中，该燃料电池系统中，在第一空气流路中，空气预热器位于燃烧器的上游，进而空气预热器无需承受燃烧器的高温，以避免空气预热器采用高温合金的问题。

一种空冷燃料电池增湿系统及增湿控制方法

Nº publicación: CN122716358A 08/09/2026

Solicitante:

广东中清氢能科技有限公司

Resumen de: CN122716358A

本发明涉及一种空冷燃料电池增湿系统及增湿控制方法，解决现有增湿方案增湿不均匀、无法自适应调节、长时间运行易失效的技术问题。本发明系统包括包括供水机构，从供水机构接出的增湿机构，若干个分别从增湿机构接出并且相互间上下叠放的均质腔体，以及设于均质腔体一侧并且接入至均质腔体的风扇。本发明通过调节三个均质腔体内部各自增湿量，使得三个均质腔体内水雾进入空冷电堆时能够混合均匀，保证了空冷电堆增湿均匀性；空气气流分多股流入均质腔体内，提高了均质腔体内水雾与空气的混匀度，进一步提升空冷电堆进气增湿的均匀性；微控制器控制系统内各电器件协同配合，使得本发明可根据环境干湿度自适应调整增湿量，使增湿过程长期稳定进行。