4567results about "Solid electrolyte fuel cells" patented technology

Improved performance ion exchange membranes for use in REM, AEM and DMFC fuel cells, buffered fuel cells, hydrolysis, other applications comprise a molecular matrix of homopolymers, di-monomer, heteropolymers, copolymers, or block-polymers of fluorocarbon and hydrocarbon compounds combined with (i) skeletal support grid to improve durability, handling, reduce membrane swelling, and sequester dopants and nanoparticles from leakage; (ii) microporous membrane formed using a sacrificial filler process enhancing conductivity and limiting fuel crossover; (iii) hetero-ionomeric matrix of two-or-more membrane-bound acids e.g. sulphonic and phosphonic acid expanding usable range; (iv) permanent fillers enhancing conductivity and porosity including nanoparticles, metal-oxides, zeolites, silicates, GOs, CNTs, MOFs, POSS, and others; (v) ionic liquid doping to enhance membrane conductivity; (vi) membrane nanocoating preventing H2O2 diffusion; and / or (vii) catalytic nanocoating with metals, metal-oxides, and MOFs preventing atmospheric toxin catalyst poisoning. Combined with a heterogenous GDI, the IEM is integrated into iBFC power blade and energy bank applications.

The present invention relates to a system, apparatus, and method for the dual-purpose functionality of capturing carbon dioxide (CO2) from atmospheric and flue gas sources and concurrently generating electrical energy. More specifically, this patent application focuses exclusively on the non-ionized hydrogen gas turbine variant of the apparatuses and methods for capturing carbon dioxide and electrical energy generating system invention. The invention embodies an integrated system designed for the efficient capture of CO2 and simultaneous production of clean electricity. To simultaneously generate electric power at maximum efficiency and capture carbon dioxide, the present invention comprises different integrated processes, integrated systems, and techniques. The present system comprises; a non-ionized hydrogen gas turbine system unit, a carbon dioxide capturing system unit, a hybrid solar Hydrogen-Oxygen gas generator system system unit and waste heat recovery system unit. Moreover, the system comprises waste-heat-based carbon dioxide absorption and waste-heat-based regeneration sub-units to power carbon dioxide capturing parts by waste heat. All the systems of units are developed, integrated, hybrid, and co-functionally working to simultaneously enhance both CO2 capture efficiency and electricity generation. Through these integrated processes, systems, and techniques, the invention aims to generate and maximize clean electrical power output while effectively capture CO2 and reducing CO2 emission impacts on the environment with a dual solution approach. The invention further includes various alternative embodiments, and invention versions for versatile application in CO2 capture and energy production fields.

The invention discloses an A-site high-entropy solid oxide fuel cell cathode material as well as a preparation method and application thereof, and provides an A-site high-entropy solid oxide fuel cell cathode material Pr < 0.2 > M < 0.2 > La < 0.2 > Ba < 0.2 > Sr < 0.2 > Co < 0.8 > Fe < 0.2 > O < 3-delta > with a perovskite phase. The preparation method comprises the following steps: S1, weighing multi-element metal nitrates, and mixing to obtain a first mixed solution; s2, dissolving ethylenediamine tetraacetic acid in ammonia water to obtain a second mixed solution; mixing the first mixed solution, the second mixed solution and citric acid to form a mixed precursor solution; s3, carrying out second heating treatment on the mixed precursor solution, and adjusting the pH value to form a gel precursor; and S4, carrying out pre-sintering treatment, third heat treatment and calcination treatment on the gel precursor to obtain a high-grade powder precursor, and carrying out ball milling and sieving treatment to obtain the A-site high-entropy solid oxide fuel cell cathode material. The cathode material is high in stability and good in chemical compatibility with a barrier layer GDC, provides high-quality mass transfer channels and active sites for O2 / O- / O2-, and has good electrochemical performance at medium and low temperatures.

The invention belongs to the technical field of fuel cell equipment degradation prediction, and provides a PEMFC degradation prediction method and system based on spatial dynamic non-stationary reconstruction attention, and the technical scheme is as follows: obtaining multi-sensing historical operation data of a fuel cell PEMFC; training the constructed PEMFC degradation prediction model based on the multi-sensing historical operation data of the fuel cell PEMFC to obtain a trained PEMFC degradation prediction model; the construction process of the PEMFC degradation prediction model comprises the steps that statistical information of multi-sensor time sequence data in the spatial dimension is acquired, and the statistical information in the spatial dimension is combined and mapped to a non-stationary factor; obtaining battery degradation characteristics in a time dimension; based on a non-stationary factor, dynamically correcting an attention weight in a self-attention mechanism during spatial feature extraction to obtain a corrected battery degradation spatial feature; the method can better cope with the non-stationarity of multiple sensor signals at different moments and under different working conditions, thereby capturing more critical and richer degradation feature expressions.

An alternating current (AC) impedance spectroscopy method includes providing an AC impedance spectroscopy ripple from power electronics into an electrochemical device, and absorbing the ripple in the power electronics.

The present invention relates to an aircraft propulsion system (100) comprising: a fuel cell arrangement comprising at least one fuel cell (110); an air source (130) for providing air to the fuel cell arrangement; a compressor arrangement comprising a first compressor (120) in fluid communication with the air source and a fuel cell of the fuel cell arrangement; and, a turbine arrangement comprising a first turbine (124) mechanically coupled to the first compressor, wherein the first turbine is in fluid communication with the at least one fuel cell (110), the system being arranged so that, in use, air from the air source (130) flows in turn to the first compressor (120), the fuel cell arrangement and the first turbine (124).

The present disclosure relates to fuel cells comprising composite catalytic material comprising (N-doped) carbon nanofoam, catalytic metal and an electrically conductive material comprising an electrically conductive polymer. The fuel cells can advantageously operate at lower temperatures than standard fuel cells.

The subject matter described herein generally relates to look ahead energy management and control systems and methods for detecting, incorporating, and leveraging look ahead technology data to improve the performance, durability, and life of fuel cell systems.

To improve the durability of a fuel cell.SOLUTION: A fuel cell 100 includes a membrane electrode assembly 115 in which electrodes are bonded to both sides of an electrolyte membrane 107, and a cerium complex containing a carrier and cerium, and the mass ratio of the carrier content to the cerium content in the cerium complex is 15 or more and 100 or less.SELECTED DRAWING: None

To provide a power supply system capable of improving followability of power supply to a demand change without reducing power generation efficiency.SOLUTION: A power supply system 1000 comprises a plurality of power generation units 100 operated in a parallel state to a commercial power source system 500 and a system controller 18 which supervises control states of the power generation units 100. The power generation unit 100 includes a power generation module 20, a power conditioner 16, and a local controller 17. The system controller divides the power generation unit 100 into any one of a first group of maximum output fixed machines, a second group of minimum output fixed machines, a third group of output adjustment machines, and a fourth group of output standby machines and controls total output power of the system by selecting a combination of groups on the basis of purchase power information from the commercial power source system 500.SELECTED DRAWING: Figure 3

The present disclosure provides a prediction method of electrochemical and mechanical performances of a Solid Oxide Fuel Cell (SOFC) in a cold-hot cycle, and belongs to the technical field of SOFCs. In the present disclosure, a cold-hot cycle test is performed on SOFC pile, a polarization curve and an electrochemical impedance spectroscopy are measured by an electrochemical workstation, and contributions of different electrode reaction processes to voltage attenuation are analyzed quantitatively; the mechanical performance (bending strength, elastic modulus and hardness) after different numbers of cold-hot cycle services is tested, and based on change of Ni particles, the electrochemical performance and the mechanical performance of the SOFC pile are quantitatively associated; an attenuation coupling relationship of the electrochemical performance and the mechanical performance of the SOFC pile is disclosed and an attenuation theory model of the electrochemical performance and the mechanical performance of the SOFC pile is built. In this way, a change law of the electrochemical performance and the mechanical performance of the SOFC pile after different numbers of cold-hot cycles and a cold-hot cycle service life of the SOFC pile can be accurately predicted, which is of great significance to improve the thermal shock resistance of the cold-hot cycles of the SOFC pile, so as to promote SOFC commercialization applications.

An electrochemical cell according to the present invention comprises a metal plate and an element part. The metal plate has a first surface, a second surface, and a plurality of through holes which include at least one first hole. The second surface is located on the opposite side from the first surface. The plurality of through holes each have a first opening which is located on the first surface. The element part has a first layer which faces the first surface, a solid electrolyte layer, and a first electrode which is located on the opposite side of the solid electrolyte layer from the first layer. The first layer has a protrusion part which extends into the first hole. The protrusion part covers the edge of the first opening of the first hole and at least a portion of the wall surface of the first hole.

The invention relates to a carbon carrier material for microwave-assisted phosphoric acid treatment and oxygen reduction, a catalyst, a preparation method and application thereof, and the scheme is innovated by the following steps: dipping conductive carbon black (such as ketjen black ECP600JD) and 60-70wt% phosphoric acid solution according to a solid-to-liquid ratio of 1g / (15-18) mL, preheating at 100-250 DEG C in an argon atmosphere, then carrying out a reaction for 10-100 seconds under the assistance of a microwave power of 100-600 W, and carrying out vacuum drying to obtain the carbon carrier material for microwave-assisted phosphoric acid treatment and oxygen reduction. The phosphorus content of the prepared carbon carrier material is 4-6wt%, and the graphitization degree of the carbon carrier material is improved (ID / IG value is 1.15-1.20). And after the platinum-cobalt alloy is further loaded, the particle size of the nanoparticles is uniform, the potential loss is only 3 mV after 5000 accelerated attenuation tests in the proton exchange membrane fuel cell, and the power density attenuation is reduced by 58%. The method has the advantages of quick reaction, low energy consumption, high corrosion resistance and the like, and the stability of the catalyst is remarkably improved.

To provide a hydrogen ion conductive multi-layer composite membrane having excellent durability, ion conductivity, and hydrogen permeation reduction effect.SOLUTION: The present invention provides a hydrogen ion conductive multilayer composite membrane comprising: inner reinforced membranes comprising a porous PTFE layer impregnated with an ionomer composition and outer reinforced membranes positioned on both sides of the inner reinforced membrane, wherein the outer reinforced membranes comprise a porous PTFE layer impregnated with an ionomer composition.SELECTED DRAWING: Figure 1

The present invention relates to a fuel cell system (100) for regulating and / or controlling a fuel utilization (FU sys ) of the fuel cell system (100) and / or a fuel utilization (FU Stk ) of a fuel cell unit (101) of the fuel cell system (100). Furthermore, the invention relates to a corresponding method for operating a fuel cell system (100), a computer program product, a computer-readable data carrier, a control unit (FCCU), and a system (200).

To make an adhesive less likely to spread beyond a desired application area when bonding a gas diffusion layer to an intermediate layer in the manufacturing stage of a fuel cell.SOLUTION: Using an adhesive coating system, an adhesive is applied on an intermediate layer in a manufacturing step of a fuel cell with the intermediate layer and gas diffusion layers on both sides of the intermediate layer. The adhesive application system has an application unit, a robot arm, and a controller. The application unit applies an adhesive when a valve is opened. The robot arm can move the application unit. The controller controls the valve and the robot arm. The controller linearly applies the adhesive to the intermediate layer from the application start point, by opening the valve before the application unit becomes located immediately on the application start point while moving the application unit by the robot arm.SELECTED DRAWING: Figure 3

The invention discloses a marine LNG solid oxide fuel cell energy gradient utilization zero-carbon emission system and an operation method thereof. According to the technical scheme, the energy utilization rate can be effectively increased, gradient utilization of cold-heat-electricity composite energy can be achieved, and the technical advantages of pure electric power, low noise, no pollution, zero carbon emission and high energy efficiency of a ship system are reflected. The marine fuel cell zero carbon emission system comprises a solid oxide fuel cell-HCCI internal combustion engine module, an exhaust gas carbon capture module, an ORC cycle module, an air supply module, an external reforming module and an energy distribution module. The waste gas carbon capture module is used for capturing waste gas generated by the system and is used for being linked with the ORC circulation module. And the ORC cycle module is linked with the solid oxide fuel cell-HCCI internal combustion engine module. The air supply module is used for exchanging heat with the HCCI internal combustion engine through external air. The external reforming module is used for providing heat and water vapor to the reformer.

A fuel cell system (10) includes: a power generation module (30) having a substantially rectangular parallelepiped shape, the power generation module (30) including a fuel cell stack (31) that generates power by fuel gas supplied to an anode and oxidant gas supplied to a cathode, and a module case (35) that has a heat insulating property and houses the fuel cell stack (31), the module case (35) being formed with a fuel gas inlet (GI) leading to an inlet of the anode, a fuel off-gas outlet (FO) leading to an outlet of the anode, and an oxidant gas inlet (AI) leading to an inlet of the cathode; a fuel supply system (40) including a fuel supply line (41) connected to the fuel gas inlet (GI) of the power generation module (30) and a fuel blower (43) provided in the fuel supply line (41); and an oxidant supply system (50) that supplies the oxidant gas to the oxidant gas inlet (AI) of the power generation module (30), wherein the fuel gas inlet (GI) and the fuel off-gas outlet (FO) are provided on a same surface of the power generation module (30), and the fuel supply system (40) is installed so as to face the same surface.

Oxygen electrodes, production methods and reversible, alkaline or anion exchange membrane (AEM) electrochemical devices are provided. The oxygen electrodes are operable in the reversible devices both as cathodes of a fuel cell supporting an oxygen reduction reaction (ORR), and as anodes of an electrolyzer supporting an oxygen evolution reaction (OER). The oxygen electrodes comprise a substrate layer which may be a porous transport layer (PTL), possibly coated and / or hydrophobized, or a membrane; and a blend of catalysts which is deposited on the substrate layer to form a catalyst layer, and includes ORR catalyst (e.g., a platinum group metal), OER catalyst (e.g., nickel-based particles), and possibly binders such as ionomers, PTFE or other polymers that are resistant in alkaline environment, but with the catalyst layer and the substrate layer being devoid of elemental carbon.

To provide a fuel cell system in which a recycling rate is improved by concentrating carbon dioxide contained in fuel electrode exhaust gas.SOLUTION: A fuel cell system 100 comprises a fuel cell 1 and a carbon dioxide recovery part 2. The fuel cell has a stack 11 having an air electrode 13 and a fuel electrode 15, a mixer 17, a reformer 12, a combustor 18, a fuel supply path L2, an air electrode exhaust gas path L3, and a fuel electrode exhaust gas path L4. The carbon dioxide recovery part has: a first carbon dioxide separation part 23 and a second carbon dioxide separation part 25; a first hydrogen recovery path L8 which feeds hydrogen-rich gas separated in the first carbon dioxide separation part to the fuel supply path; and a second hydrogen recovery path L9 which feeds hydrogen-rich gas separated in the second carbon dioxide separation part to the combustor. The fuel electrode exhaust gas path branches into a fuel electrode exhaust gas recycling path L6 connected to the mixer and a carbon dioxide recovery path L7 connected to the first carbon dioxide separation part.SELECTED DRAWING: Figure 1

Provided is an electrolyte membrane with a catalyst layer, which is capable of suppressing a reduction in the output of a fuel cell while reducing the production cost. The present invention is a catalyst layer-equipped electrolyte membrane having a cathode catalyst layer on one surface of the electrolyte membrane and an anode catalyst layer on the other surface, the cathode catalyst layer and the anode catalyst layer each containing platinum, the electrolyte membrane has a transmittance ratio TR50 (TH50 / TO50) of hydrogen gas transmittance (TH50) to oxygen gas transmittance (TO50) at 65 DEG C and 50% RH of 3.0 or more, and satisfies the following condition 1 and / or condition 2. < Condition 1 > The ratio (CPt / APt) of the amount of platinum (CPt) per unit area of the cathode catalyst layer to the amount of platinum (APt) per unit area of the anode catalyst layer is 2.0 or more. < Condition 2 > The ratio TAn / TCa of the thickness (TCa) of the cathode catalyst layer to the thickness (TAn) of the anode catalyst layer is less than 0.40.

The invention relates to an electrochemical cell assembly (10) comprising an end plate (14, 18), a stack (20) comprising a plurality of cell units (22) that are stacked upon one another along a stacking direction (24), and an insulating plate (32) that is interposed between the end plate and the stack, wherein the cell units each comprise a periphery (52) and a central portion (54), wherein at least one cut-out (76) is provided in the insulating plate, said cut-out extending through the insulating plate along the stacking direction, and wherein at least one inset (78) is positioned in said cut-out such that, seen along the stacking direction, the inset and the central portion overlap each other, said inset being formed from a ceramic material.

The invention relates to a solid oxide fuel cell, and provides a solid oxide fuel cell composite support body, a preparation method thereof, a solid oxide fuel cell and a preparation method thereof, and the preparation method of the solid oxide fuel cell composite support body comprises the following steps: S1, preparing sacrificial layer slurry, support layer slurry and transition layer slurry; s2, the sacrificial layer slurry, the supporting layer slurry and the transition layer slurry are sequentially placed in a casting machine, the sacrificial layer slurry is placed at the bottom, a blank obtained after casting is subjected to phase inversion curing in a water bath, a sacrificial layer is removed, and the composite supporting body is obtained. According to the preparation method of the composite support body provided by the invention, thermal expansion matching is synergistically optimized through the phase inversion finger-shaped hole support layer and the gradient transition layer, the bonding interface is strengthened, the bonding strength and the electrochemical performance of the battery are remarkably improved, and the composite support body is suitable for vehicle-mounted and distributed energy systems.

Reducing the risk that a fluid for which external leakage is to be suppressed leaks to the outside through a drain pipe. 【Solution means】A fuel cell, a case into which the exhaust gas discharged from the fuel cell is introduced, separating moisture from the exhaust gas inside the case, discharging the water inside the case to the outside of the case from a drain port provided in the case, and discharging the exhaust gas inside the case to the outside of the case from an exhaust port provided in the case, a gas-liquid separator, an exhaust pipe having an exhaust outlet for discharging the exhaust gas from the exhaust port, a drain pipe having a drain outlet for discharging the water from the drain port, a water seal for water-sealing the drain outlet, and a connecting pipe connecting the exhaust pipe and the drain pipe so that the gas in the drain pipe flows into the exhaust pipe and the water in the exhaust pipe flows into the drain pipe, a fuel cell power generation system.

The invention discloses a nickel-iron alloy precipitation type perovskite catalytic material with excellent ammonia decomposition activity and solid oxide fuel cell performance as well as a preparation method and an application of the nickel-iron alloy precipitation type perovskite catalytic material. The general formula of the catalytic material is La < 0.7 > Sr < 0.2 > Fe < 1-x > Ni < x > O < 3-delta > (0 lt, x is smaller than or equal to 0.3), uniform precipitation of Ni-Fe nano-alloy particles is promoted under a high-temperature condition through B-site nickel doping and A-site defect regulation, ammonia decomposition activity is remarkably improved, and electron-ion mixed conductivity of the material is enhanced. A stable three-dimensional polymer network structure is constructed through batch feeding and a citric acid-sol-gel method, the ammonia decomposition rate of the obtained catalytic material at 600-800 DEG C is close to the equilibrium conversion rate, the power density of a fuel cell is remarkably improved, and the problem that a traditional Ni-based anode is prone to sintering and agglomeration at high temperature is effectively solved. The material is compatible with a plurality of electrolyte systems such as YSZ, GDC and SDC, and is suitable for application scenarios such as a plurality of fuel cell electrodes.

A method for activating a polymer electrolyte fuel cell according to an embodiment of the present invention is adapted to activate a polymer electrolyte fuel cell a membrane electrode assembly in which an anode electrode and a cathode electrode are opposed to each other with a solid polymer membrane interposed therebetween. The method includes pressurizing and feeding a hydrogen-containing humidification gas, which has been humidified, to the anode electrode and pressurizing and feeding an oxygen-containing humidification gas, which has been humidified, or a nitrogen-containing humidification inert gas, which has been humidified, to the cathode electrode, while heating the polymer electrolyte fuel cell at a set temperature in a predetermined range (preferably from 100° C. to 300° C., more preferably from 100° C. to 200° C., and still more preferably from 100° C. to 150° C.).

An anode gas diffusion layer for a proton exchange membrane (PEM) electrolyzer includes a porous stainless steel sheet formed by a powder metallurgical technique.

To provide an ion conductive polymer having improved ion conductivity, and a separation membrane containing the same.SOLUTION: The present disclosure relates to an ion-conducting polymer having a repeat unit comprising a quaternary ammonium and at least one ether group.SELECTED DRAWING: None

To provide an electrolyte particle for use in the manufacture of a solid oxide electrochemical cell, which is a solid electrolyte sintered body constituting a solid oxide electrochemical cell and which can be efficiently manufactured by sintering a densified sintered body having a high relative density at, for example, 1200°C or lower, and a dispersion liquid containing the electrolyte particle.SOLUTION: The present invention relates to an electrolyte particle containing at least one selected from (A) stabilized zirconia consisting of 3.0 to 10.0 mol% scandium oxide, 0 to 2.0 mol% cerium oxide, and 88.0 to 97.0 mol% zirconium oxide, (B) stabilized zirconia consisting of 0.5 to 15.0 mol% yttrium oxide and 85.0 to 99.5 mol% zirconium oxide, and (C) stabilized zirconia consisting of 0.5 to 15.0 mol% ytterbium oxide and 85.0 to 99.5 mol% zirconium oxide, and having a volume average particle diameter of 50 to 150 nm measured using a laser diffraction method.SELECTED DRAWING: Figure 1