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641
results.
Updated on
24/06/2025 [06:49:00]
Results 125 to 150 of 641
Absstract of: WO2025127640A1
One embodiment of the present invention provides a heat exchange device to which a phase-change working fluid is applied, and a fuel cell cooling system including same, wherein the heat exchange device has a simple configuration and excellent heat exchange performance, and thus can be miniaturized and made lighter. Here, the heat exchange device to which a phase-change working fluid is applied comprises: a vacuum housing; a first pipe; a second pipe; a plurality of first plates; a third pipe; a fourth pipe; and a plurality of second plates. The vacuum housing accommodates the phase-change working fluid therein. The first to fourth pipes are provided to pass through the vacuum housing. The first pipe and the third pipe are arranged to pass through a condensation region of the working fluid, and a low-temperature first fluid is introduced into and moves in the first pipe, and a low-temperature third fluid is introduced into and moves in the third pipe. The second pipe and the fourth pipe are arranged to pass through an evaporation region of the working fluid. A high-temperature second fluid is introduced into and moves in the second pipe, and a high-temperature fourth fluid is introduced into and moves in the fourth pipe. The plurality of first plates and the plurality of second plates are spaced apart from each other at predetermined intervals, and are arranged over the condensation region and the evaporation region, respectively. The plurality of first plates are connected to
Absstract of: WO2025127363A1
The present invention relates to separation membrane material, a method for producing same, and a separation membrane and a water electrolysis apparatus comprising same. More specifically, the separation membrane material has excellent electrochemical properties such as ionic conductivity, mechanical properties, and chemical durability, and the membrane that is produced is superbly uniform.
Absstract of: WO2025126962A1
This platinum catalyst includes: a porous silicon carbide composite material comprising a silicon carbide material containing SiC as a main component and a carbon material; and a platinum nanostructure supported on the porous silicon carbide composite material. The supported amount of the platinum nanostructure when the total mass of the platinum catalyst is 100 mass% is 30-60 mass% and the intensity ratio of Pt (111)/Pt (200) obtained from X-ray diffraction (XRD) is 2.5-3.0.
Absstract of: WO2025126585A1
This redox flow battery system comprises: a battery cell to which an electrolytic solution is supplied; and a concrete tank having an internal space in which the electrolytic solution is stored. The concrete tank has an inner wall part that partitions the internal space into a plurality of first spaces. The contour shape of each of the plurality of first spaces as viewed from above is polygonal.
Absstract of: WO2025126584A1
This redox flow battery system includes: a main container in which a battery cell is accommodated; and a concrete tank having a first space in which an electrolyte to be supplied to the battery cell is stored.
Absstract of: WO2025123995A1
Disclosed in the present invention are a positive electrode electrolyte of an all-vanadium redox flow battery, and a flow battery. The positive electrode electrolyte comprises an active material, a supporting electrolyte and an additive, wherein the active material comprises VO2 +/VO2+; and the additive comprises a transition metal salt, cations in the transition metal salt are selected from at least one of Ti4+, Cr3+, Mn2+, Co2+, Ni2+, Cu2+, Cd2+ and Ce3+, anions are selected from at least one of SO4 2-, HSO4 -, PO4 3-, HPO4 2-, H2PO4 -, BrO3 - and IO3 -, and the concentration of the transition metal salt is greater than or equal to 0.05 moL L-1. In the present application, by changing the chemical environment around VO2 + via transition metal ions, pentavalent vanadium ions are prevented from dehydration condensation to generate a V2O5 precipitate; therefore, the high-temperature stability of the electrolyte is significantly improved, and stable and efficient operation can be achieved at a high temperature.
Absstract of: WO2025124701A1
The invention pertains to an electrochemical cell assembly (10), comprising a stack (12) of cell units (14) that are stacked upon one another along a stacking direction (16), and a current transmission device (54) for electrically contacting the stack of cell units, said current transmission device spanning the stack along the stacking direction and being electrically connected to a first end of the stack, wherein the current transmission device comprises at least one spring member (56) that is configured to be elastically deformable along the stacking direction in order to compensate for relative thermal expansion of the stack and the current transmission device during operation of the electrochemical cell assembly.
Absstract of: WO2025123209A1
An exhaust system (50) for a hydrogen fuel cell vehicle includes a housing (71) including at least one discharge hole (9) disposed in a lower portion of the housing (71) and configured to discharge water, a water separator (5) integrated in the housing (71) and configured to separate water from exhaust gas, and a muffler (60) integrated in the housing (71) and disposed downstream from the water separator (5), the muffler (60) including a cylindrical tube body (7) including a grid side wall and sound absorbing material (6) circumferentially wrapped around the grid side wall.
Absstract of: WO2025127928A1
This invention pertains to a fuel cell with a housing structure, anode, cathode, electrolyte medium, fuel and oxidant input mechanisms, and an energy output interface. An optical measurement system is provided, embedded within the fuel cell. The optical measurement system is configured to monitor multiple operational parameters. At least one optical fiber is configured to extend within the fuel cell, wherein multiple sensing points are distributed along said at least one optical fiber. Each sensing point is configured to detect one or more operational parameters within the fuel cell.
Absstract of: WO2025125399A1
The present invention relates to a dewatering element (100) for dewatering a fuel cell stack (200). The dewatering element (100) comprises: - a main body (101), wherein a cutout (103) for operating medium to flow through is formed in the main body (101), wherein the main body (101) forms a structured surface (107) at the edge (105) of the cutout (103), the structured surface comprising a multiplicity of structural elements (111) which are elevated in relation to a base (109) of the edge in the direction of the cutout.
Absstract of: WO2025125479A1
The aim of the invention is an efficient charge balancing in an electrolyte (15a, 15b) of a redox flow battery (1). This is achieved in that during the operation of an electrochemical balancing cell (40), a balancing voltage (VA) is applied between the two electrodes (47, 48), said balancing voltage producing a half-electrolysis of water in the second liquid volume (42) in the charge balancing electrolyte (44) and a chemical reduction or chemical oxidation of the redox element in the electrolyte (15a, 15b) in order to change the oxidation stage of the redox element, wherein the charge balancing electrolyte (44) is stored in a charge balancing electrolyte container (45) at a higher level than the liquid level of the charge balancing electrolyte (44) in the second liquid volume (42). The electrochemical balancing cell (40) is equipped with a supply line (51) which connects the charge balancing electrolyte container (45) to the lower region of the second liquid volume (42), and the electrochemical balancing cell (40) is equipped with a discharge line (52) which connects the upper region of the second liquid volume (42) to the charge balancing electrolyte container (45).
Absstract of: WO2023217672A1
Said forming plant (10) is configured to form polar plates in series from a strip (12) and comprises three presses, each of which comprises an actuating device (28) moving a slide in a reciprocating vertical movement and which include: - an upstream press (50), - an intermediate press (40) comprising an embossing tool (42) configured to relief-emboss a network of flow channels on the strip, and - a downstream press (60). According to the invention: - the strip (12) passes continuously through the three presses, - the forming plant comprises tensioning members configured to keep portions (16A) of the strip located in the presses under tension while keeping the portions (26B) of the strip located between the presses slack, - the actuating device (28) of the intermediate press exerts, on the embossing tool (42), a pressing force which extends through a connection point between the slide and the actuating device and which penetrates the network of channels.
Absstract of: EP4571904A1
In some examples, a water recovery system is configured to extract water from an exhaust of a fuel cell assembly. The water recovery system includes a condenser configured to transfer heat from the exhaust, an extractor configured to extract water from the exhaust, and a turbine configured to extract energy from the exhaust. The condenser is configured to transfer the heat to a turbine exhaust of the turbine and provide the exhaust to the extractor. The extractor is configured to provide the exhaust to the turbine. In examples, a compressor is configured to compress the exhaust prior to the heat transfer by the condenser.
Absstract of: US2025188581A1
The present invention relates to a ferritic stainless steel containing: C≤0.03 mass %; Si≤0.05 mass %; 0.30 mass %≤Mn≤1.00 mass %; P≤0.05 mass %; S≤0.05 mass %; Cu≤0.10 mass %; 20.0 mass %≤Cr≤25.0 mass %; V≤0.10 mass %; Co≤0.10 mass %; Al≤0.10 mass %; 0.01 mass %≤Ti≤0.30 mass %; N≤0.03 mass %; 0.05 mass %≤La≤0.30 mass %; and Ni≤2.00 mass %; and at least one selected from the group consisting of 0.10 mass %≤W≤2.00 mass % and 0.10 mass %≤Mo≤2.00 mass %, with a balance being Fe and unavoidable impurities.
Absstract of: US2025188627A1
Electrolysis or co-electrolysis reactor (SOEC) or fuel cell (SOFC) with stacking of electrochemical cells incorporating mechanical reinforcement elements with temperature-variable stiffness. An electrochemical device formed by assembly, by alternate customary stacking, of electrochemical cells and of fluidic and electrical interconnects, in which at least one mechanical reinforcement element is installed at each stage to take up the flexural forces which are liable to occur in the stack during the initial thermomechanical treatment step.
Absstract of: JP2025091099A
【課題】ＳＯＦＣまたはＳＯＥＣの電極に適用した際に、外部接続端子を容易に取り付けることができる上、金属シールを容易に形成することが可能な、焼結体を提供することを目的とする。【解決手段】ＳＯＦＣまたはＳＯＥＣの電極用の焼結体であって、酸化物イオン伝導性固体電解質と、金属とを含有し、前記金属は、Ｆｅ、ＮｉおよびＣｕの少なくとも一つを含み、前記金属と前記酸化物イオン伝導性固体電解質の体積比は、１０：９０～２０：８０の範囲であり、当該焼結体の断面を５００μｍ×５００μｍの領域で観察した際、最大寸法が１００μｍ未満の金属粒子が金属粒子全体の８０％以上を占める、焼結体。【選択図】図４
Absstract of: US2025188583A1
The present invention relates to a ferritic stainless steel containing: 0 mass %
Absstract of: JP2025091061A
【課題】製造効率を向上させることができるセパレータの製造方法を提供する。【解決手段】一方に冷媒と接する冷却面を備え、他方に発電体と接する発電面を備える、燃料電池用のセパレータの製造方法であって、複数の基材を並べて配置し、前記基材の表面に成膜を行う成膜工程を備え、前記成膜工程では、各前記基材の前記冷却面となる面同士の一部が対向するように前記複数の基材が配置されることを特徴とするセパレータの製造方法。【選択図】図１
Absstract of: WO2025120932A1
In this fuel cell system, when the difference between an optimum value of an output voltage of a fuel cell corresponding to a measured value of an output current of the fuel cell measured by a current sensor and a measured value of the output voltage of the fuel cell measured by a voltage sensor is defined as an output voltage difference, a control unit: when there is a request to shut down power generation of the fuel cell, reduces a target fuel pressure, which is a target pressure of fuel gas supplied by a fuel supply device, and shuts down power generation of the fuel cell; and, when reducing the target fuel pressure of the fuel supply device, changes a pressure reduction rate of the target fuel pressure of the fuel supply device on the basis of the output voltage difference.
Absstract of: JP2025091139A
【課題】部品点数を増加させることなく電子機器を冷却することができる燃料電池ドローンを提供する。【解決手段】燃料電池１２によって航行する燃料電池ドローン１０であって、燃料電池１２の燃料ガスが充填される高圧ガスタンク１３と、高圧ガスタンク１３に接続されるガス供給用配管１８と、ガス供給用配管１８に設けられ、ガス供給用配管１８よりも径が小さい絞り部１８Ａと、ガス供給用配管１８に設けられ、絞り部１８Ａよりも高圧ガスタンクの１３から見て下流側に配置され、絞り部１８Ａよりも径が大きい拡径部１８Ｂと、を備え、高圧ガスタンク１３および／または拡径部１８Ｂには、被冷却部品１７が接触するように配置されている。【選択図】図１
Absstract of: GB2636332A
An electrode for an electrochemical cell, the electrode comprising at least a first layer comprising a source of nickel and a first electrode material comprising doped cerium oxide of composition Ce(1-x)LnxO(2-0.5x-δ) where x is a doping level of between 0.001 and 0.08, Ln is Gd or Sm, and δ is the degree of oxygen deficiency (which can be zero). The source of nickel may comprise 25% by volume or greater of the first layer, and may comprise nickel metal, nickel oxide, or mixtures of copper and nickel oxides, cobalt and nickel oxides or iron and nickel oxides. Also disclosed are electrochemical cells having such electrodes and stacks of such electrochemical cells. A method for producing an electrode for an electrochemical cell comprising applying an electrode composition as defined above to a substrate and optionally drying and sintering the composition to produce the electrode is also disclosed. The electrode is preferably a fuel electrode, for solid oxide fuel cells or electrolyser cells, e.g. metal-supported cells.
Absstract of: EP4571907A1
An electrochemical cell includes a first electrode layer, a second electrode layer, a solid electrolyte layer, and an intermediate layer. The solid electrolyte layer is located between the first electrode layer and the second electrode layer. The intermediate layer is located between the solid electrolyte layer and the first electrode layer, and contains Ce. The electrochemical cell contains Al in a boundary portion between the solid electrolyte layer and the intermediate layer.
Absstract of: EP4571900A1
A conductive member includes a base material containing chromium, a first layer including first particles each of which is a conductive oxide, and a second layer including second particles each of which is a conductive oxide. The first layer is located on the base material. The second layer is located on the first layer. The first layer has open pores that open to an interface with the second layer. The second particles include particles having a particle diameter smaller than a diameter of the open pores.
Absstract of: AU2023343073A1
A redox flow battery (RFB) system with a low-cost online turbidity sensor to detect the early stages of electrolyte precipitate formation is described. The inline turbidity sensor can be used in either absorption or scattering mode. The RFB system may optionally include an RGB color sensor to monitor the charge-discharge cycles by detecting color change in the electrolyte.
Nº publicación: EP4569561A1 18/06/2025
Applicant:
ESS TECHNOLOGY INC [US]
ESS Tech, Inc
Absstract of: AU2023330021A1
Systems and methods are provided for rebalancing cells in a redox flow battery. In one example, a rebalancing cell system includes a first rebalancing cell in series fluidic communication with a second rebalancing cell and a hydrogen source, the first rebalancing cell includes a first electrode assembly stack with hydrogen flow paths extending therethrough and having a higher pressure than an electrolyte in the first electrode assembly stack. Further, the second rebalancing cell includes a second electrode assembly stack with hydrogen flow paths that extend therethrough and have a higher pressure than an electrolyte in the second electrode assembly stack.
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