1040 results about "Solid oxide fuel cell" patented technology

A propulsion system for an aircraft as disclosed herein may include a nacelle, a shaft positioned centrally within a cylindrical passageway of the nacelle, a fan coupled to one end of the shaft, a turbine coupled to an opposite end of the shaft, an electric motor coupled to the shaft, a compressor positioned within the cylindrical passageway, and a solid oxide fuel cell positioned with a hollow ring-shaped interior of the nacelle. The hollow ring-shaped interior may surround and be isolated from the cylindrical passageway. The turbine may be configured to provide primary torque to the shaft while the electric motor may be configured to provide additional torque to the shaft. The electric motor may be powered an electric output of the solid oxide fuel cell while the turbine may be powered at least in part by output gases from the solid oxide fuel cell.

The invention discloses a gas-heat-electricity balance management and control method and system for a kilowatt-level SOFC (solid oxide fuel cell) cogeneration system, and belongs to the field of solid oxide fuel cells. The method comprises the following steps: setting initial operation parameters according to structure parameters and design working conditions of an SOFC electric pile, a heat exchanger, a reformer and a catalytic burner; a module start-stop coordination instruction is generated through the integrated controller, and temperature and pressure changes of all the modules in the start-stop process are controlled; system operation data are monitored in real time through a sensor, real-time diagnosis is conducted through a multi-dimensional data fusion algorithm, and abnormal states such as over-burning, over-air and temperature runaway are recognized; and according to the diagnosis result, the fuel flow, the air flow, the heat exchange power and the like are adjusted through a multivariable dynamic regulation and control strategy, so that reactor temperature fluctuation is controlled, and a temperature runaway early warning signal is generated. According to the method, the overall stability and efficiency of the SOFC combined heat and power system are improved by optimizing gas-heat-power balance management and control.

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 relates to a self-heating catalysis propane partial oxidation reforming coupling tube type solid oxide fuel cell system and a preparation method of a catalyst and a carrier thereof. The system comprises a fuel cell tube and a honeycomb type catalyst carrier with the catalyst, the fuel cell tube comprises a cathode layer, an electrolyte tube and an anode layer; the anode layer is located on the inner wall of the electrolyte tube, and the cathode layer is located on the outer wall of the electrolyte tube; the honeycomb type catalyst carrier is mounted at a gas inlet end of a fuel cell tube and is communicated with an inner cavity of the fuel cell tube, the catalyst is a ruthenium-based active component, comprises RuO or metal Ru and is doped with CeO as a dispersing aid, the loading capacity of Ru is 0.5-5wt%, and the proportion of CeO is 0.5-3wt%. The method has the advantages that the mechanical stability is good, the influence of the anode reduction process on the starting time is eliminated, the influence of anode carbon deposition on the performance of the SOFC is reduced, and rapid heating and rapid power generation are realized.

The invention discloses an electricity and heat coordination method and system of a solid oxide fuel cell heat and power cogeneration system. The method comprises the following steps: acquiring a system operation parameter set (an electric load, a heat load, an electric pile temperature, a tail gas temperature and a fuel flow) in real time; determining a thermoelectric coordination control target value including a target power generation efficiency interval and a target heat supply temperature interval based on the parameter set; a fuel supply and air flow adjusting instruction is generated; executing the instruction to dynamically match the output power of the system with the electric load demand, dynamically match the output temperature of the waste heat recovery system with the thermal load demand, and generate a real-time heat-to-power ratio; when the stack temperature exceeds a preset safety threshold value, the fuel flow is preferentially reduced to a temperature return safety interval, and the air flow is synchronously compensated according to a stoichiometric ratio; and dynamically correcting the boundary value of the target power generation efficiency interval based on the real-time heat-to-electricity ratio, so that the real-time heat-to-electricity ratio of the system is always in the preset optimal efficiency interval. According to the invention, dynamic decoupling control and continuous efficiency optimization of the electric heating load are realized.

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.

The invention relates to the technical field of solid oxide fuel cells, and discloses an SOFC-heat storage-heat pump multi-energy complementary system and a cooperative control method, and the system comprises a fuel processing module, an SOFC power generation device, a gas turbine, a heat storage system and a heat pump. The invention further discloses a cooperative control method for the SOFC-heat storage-heat pump multi-energy complementary system. The cooperative control method comprises the following steps that S1, a three-level cooperative control framework of a global optimization layer, an equipment control layer and an execution layer is established; s2, constructing an information interaction framework; s3, constructing a dynamic energy management strategy, and implementing waste heat hierarchical scheduling; s4, constructing an electric power-thermal power collaborative optimization regulation and control mode; s5, constructing an optimization objective function, optimizing the objective at fixed time, and performing rolling optimization; and S6, carrying out calibration of the weight coefficient of the optimization objective function and calibration of balance between the prediction time domain and the control time domain. According to the invention, the effects of minimizing the operation cost, maximizing renewable energy consumption and prolonging the service life of equipment are realized.

The invention discloses a thermal fatigue life prediction method of a solid oxide fuel cell electrode plate, and belongs to the technical field of fuel cells. According to the method, a full-size SOFC electrode plate finite element model is established, an electrode plate preparation process is simulated, and an electrode plate residual stress distribution field is obtained; a finite element model of the full-size SOFC electric pile unit is also established, a circulating heat temperature field is applied based on the obtained residual stress distribution field of the electrode plate for numerical simulation, and the evolution rule of the thermal stress of the electrode plate in the electric pile unit under the start-stop circulating working condition is obtained; meanwhile, an electrode plate thermal fatigue damage prediction model is constructed, the evolution rule of the damage coefficient of the electrode plate along with the number of thermal cycles is calculated according to the obtained evolution rule of the thermal stress of the electrode plate, and the thermal fatigue life of the electrode plate is predicted. According to the method, the thermal fatigue life of the electrode plate is predicted, and a theoretical reference can be provided for the design of a galvanic pile and preventive maintenance in an operation process, so that long-term stable operation of the galvanic pile is ensured.

The invention provides a multi-mode split hybrid propulsion system of a compact high-temperature fuel cell jet engine. The problems that a traditional aviation gas turbine engine is low in heat efficiency, high in oil consumption rate and high in nitrogen oxide emission amount are solved. The device comprises a propelling system, a transmission system and a lubricating system, the propelling system adopts parallel double shafts; the two connecting shafts can transmit power through a transmission system, so that two working modes of the ducted fan are realized; and the lubricating system feeds lubricating oil to all shaft systems on the shaft. The high-temperature solid oxide fuel cell system supplies power to the motor through the direct current conversion device, then the motor drives the ducted fan, and the total efficiency and the total thrust of the hybrid propulsion system are improved. The hydrogen-rich combustion chamber and the hydrogen-poor combustion chamber are additionally arranged on the structure, so that the problem that the high-temperature solid oxide fuel cell needs a heat exchanger with a complex pipeline to preheat fuel is solved.

The invention provides a heat-electricity coupling driven indirect cooling and heat regeneration mixed exhaust turbofan engine, and belongs to the technical field of aero-engines, the heat-electricity coupling driven indirect cooling and heat regeneration mixed exhaust turbofan engine comprises an engine body, and an indirect cooling and heat regeneration heat exchange system, a transmission system and an electric propulsion system are arranged in the engine body; the electric propulsion system is connected with the transmission system and drives the transmission system to do work, the transmission system and the electric propulsion system are both arranged at the middle section position of the engine body, and the indirect cooling heat regeneration heat exchange system is arranged at the head section position and the tail section position of the engine body. According to the heat-electricity coupling driven intercooling regenerative mixed exhaust turbofan engine, the solid oxide fuel cell is introduced, so that the thermodynamic cycle effective work of the engine is increased, the overall energy utilization rate of a propulsion system is remarkably improved, an optimal power supply degree design value interval is provided, and the power supply degree design value interval is optimized. And a design reference basis is provided for reasonable thermal-electric energy distribution of the corresponding propulsion system configuration in the design stage.

The invention relates to a solid oxide fuel cell and a preparation method thereof. The solid oxide fuel cell comprises a sheet substrate, a first cell monomer and a second cell monomer, wherein the first cell monomer and the second cell monomer are fixed on the front and back surfaces of the sheet substrate; each of the first battery monomer and the second battery monomer comprises a porous supporting layer, an anode functional layer, an electrolyte layer and a cathode functional layer which are sequentially stacked and connected; the sheet body substrate is connected between the porous support layer of the first battery monomer and the porous support layer of the second battery monomer; a separation groove is formed in the sheet body substrate, and a fuel gas flow channel is formed among the separation groove, the first battery monomer and the second battery monomer. After the pipeline connected with the fuel gas is communicated with the fuel gas flow channel, the fuel gas only flows in the fuel gas flow channel, and the fuel gas flow channel has good sealing performance. And the porous supporting layer, the anode functional layer, the electrolyte layer and the cathode functional layer are planar sheet bodies which are printed and formed layer by layer, so that the manufacturing difficulty is low, industrial large-scale manufacturing is facilitated, and the production cost is reduced.

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.

The invention relates to the technical field of solid fuel cells, and discloses a porous gradient anode supported solid fuel cell impedance optimization method which is applied to a system comprising a plurality of porous gradient anode impedance sensors and an optimization controller. The method comprises the steps that a sensor collects voltage and current data to generate an impedance state data set; the optimization controller constructs a regional impedance state matrix, extracts features through processing, performs impedance distribution prediction in combination with a potential gradient and the like, outputs spatial and temporal distribution features through an impedance optimization model, and updates a data set; and dynamically optimizing regional electrode parameters according to the distribution characteristics, including voltage adjustment, current aggregation, resistance distribution and other operations. According to the method, through multi-sensor distributed acquisition, multi-dimensional feature analysis and dynamic modeling, accurate prediction and parameter dynamic regulation and control of electrode impedance spatial and temporal distribution are realized, the performance and stability of the solid fuel cell are improved, and the method is suitable for the field of solid fuel cell management.

This invention relates to a method for fabricating a planar anode-supported solid oxide fuel cell and the solid oxide fuel cell itself. The fabrication method includes the following steps: preparation of a support slurry and anode support green body; preparation of functional layer slurry and functional layer; preparation of electrolyte layer slurry and electrolyte layer; debinding and sintering; preparation of barrier layer slurry and barrier layer; preparation of cathode layer slurry and cathode layer; and molding and sintering. The solid oxide fuel cell includes an anode support, an anode functional layer, an electrolyte layer, a barrier layer, and a cathode layer. This invention features a short process flow, low production cost, multiple active sites in the battery reaction, and good battery performance.

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.

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.

The invention discloses a solid oxide fuel cell (SOFC) hybrid power system and an energy recovery control method thereof, belongs to the technical field of fuel cell hybrid power systems, and particularly relates to a solid oxide fuel cell (SOFC) hybrid power system and an energy recovery control method thereof. The technical problems that in the prior art, dynamic load adaptability is poor, system cooperative control is insufficient, the cold start process is slow, unreacted fuel energy recovery is inaccurate, and the knocking risk exists are solved. The system comprises an execution unit, a sensing monitoring unit and a control unit, and the execution unit comprises a solid oxide fuel battery pack, an elliptical piston rotor machine, a generator, a turbine, a gas compressor and a heat exchange device. The solid oxide fuel cell hybrid power system and the energy recovery control method thereof are suitable for constructing a hybrid power system which needs to be efficiently, stably and quickly started and can adapt to a wide load change range.

The invention discloses a layered structure solid oxide fuel cell composite cathode catalyst as well as a preparation method and application thereof, and belongs to the field of solid oxide fuel cells. The invention aims to solve the problem that the electro-catalytic performance and low-oxygen reduction reaction activation energy of the existing medium-temperature solid oxide fuel cell are poor. The Sr2. 9Ca0. 1Fe2O7-CuO composite cathode catalyst is prepared by adopting a sol-gel method and a solid phase method, the components in a sol-gel system are in a nanometer range, the reaction is easier to carry out, the reaction temperature is low, the prepared materials are uniformly mixed, and the sol-gel method is carried out in a solution, so that even if the content of doped elements is very low, the doping can be easily realized; the material is prepared by adopting a solid phase method, and the method has the advantages of convenience in operation, simple synthesis process, uniform particle size, no agglomeration of powder particles, good filling property, low cost, high yield and the like, so that the electrochemical performance of the cathode catalyst is improved, and the method is convenient to operate and suitable for industrial production.

The invention belongs to the technical field of solid oxide batteries, and relates to an oxygen electrode material for a proton conduction type reversible solid oxide battery, the oxygen electrode material is a perovskite type oxide, and the chemical formula is PrzBa < 1-0.5 z > Sr < 1-0.5 z > CouFe < 2-u-x-y > M < x > Y < y > O < 5 + delta >, in the formula, M is any one of Nb, Ta, Zr, Hf, Mo and W, x is more than or equal to 0.05 and less than or equal to 0.2, y is more than or equal to 0.05 and less than or equal to 0.15, z is more than or equal to 0.98 and less than or equal to 1.02, u is more than or equal to 1.48 and less than or equal to 1.52, and delta represents a non-stoichiometric oxygen vacancy. The oxygen electrode material prepared by co-doping M and Y according to a specific ratio has a relatively low thermal expansion coefficient, and is well matched with an electrolyte BCZYYb; when being used in a proton conduction type solid oxide fuel cell and a proton conduction type solid oxide electrolytic tank, the proton conduction type solid oxide fuel cell / proton conduction type solid oxide electrolytic cell has good electrochemical performance; and the oxygen electrode material has excellent long-term working stability.

The invention discloses a fuel cell-turbofan engine hybrid power system for a cross-medium aircraft, and relates to the technical field of aero-engines, the system comprises a solid oxide fuel cell, a turbofan engine, a lithium battery, an energy management module, a motor, a propeller, a reforming hydrogen production device and a medium self-adaptive oxidant supply subsystem. In an air flight mode, the system adopts autothermal reforming hydrogen production, a fuel cell and a turbofan engine to cooperatively work, a high-efficiency low-oil-consumption low-speed cruise and high-thrust acceleration mode is provided, and meanwhile, a lithium battery is charged. In the underwater submerging and water surface sailing mode, a turbofan engine flow channel is closed, steam reforming hydrogen production is adopted, a hybrid power system composed of a fuel cell and a lithium battery is used for driving a propeller, the fuel cell provides stable power, and the lithium battery meets the instantaneous high-power requirement. The system solves the problems that a traditional power system is low in efficiency, poor in cruising ability, single in working mode and the like.

A propulsion system (100) for an aircraft as disclosed herein may include a nacelle (180), a shaft (110) positioned centrally within a cylindrical passageway (184) of the nacelle (110), a fan (120) coupled to one end (112) of the shaft (110), a turbine (130) coupled to an opposite end (114) of the shaft (110), an electric motor (140) coupled to the shaft (110), a compressor (160) positioned within the cylindrical passageway (184), and a solid oxide fuel cell (150) positioned with a hollow ring-shaped interior (182) of the nacelle (180). The hollow ring-shaped interior (182) may surround and be isolated from the cylindrical passageway (184). The turbine (130) may be configured to provide primary torque to the shaft (110) while the electric motor (140) may be configured to provide additional torque to the shaft (110). The electric motor (140) may be powered an electric output (152) of the solid oxide fuel cell (150) while the turbine (130) may be powered at least in part by output gases (154) from the solid oxide fuel cell (150).

The invention discloses an optimal design method of a high-temperature air pre-heater for a solid oxide fuel cell based on a three-period minimum curved surface, which comprises the following steps of: firstly, establishing a sample database between a three-period minimum curved surface single crystal cell structure and hydraulic characteristic parameters and between an end socket structure and a local resistance coefficient; based on a sample database, an artificial neural network model of a single cell structure and hydraulic characteristics, and an end socket and local resistance is constructed, according to the model, on the basis of design requirements, a non-linear optimization algorithm is combined to design a cross-flow heat exchanger cell-by-cell self-adaptive heat balance calculation process, and pressure drop on the cold side and the hot side is used as an optimization target to optimize the cross-flow heat exchanger cell-by-cell self-adaptive heat balance calculation process. According to the method, the minimum curved surface structure air preheater optimization design method based on the multi-objective genetic optimization algorithm is developed, the geometric structure of the single crystal cell, the overall size of the air preheater and the corresponding thermal performance are finally obtained, the optimal matching scheme between the single crystal cell and the overall size can be automatically obtained, the design optimization efficiency is improved, and the design cost is reduced. And engineering application is facilitated.

The invention provides a catalytic combustion testing device and a catalytic combustion testing method for an SOFC (Solid Oxide Fuel Cell), and belongs to the field of solid oxide fuel cells. Comprising a fan, a heat exchanger, a mixing pipeline, a combustor, a heating device and an observation device. Wherein the outlet end of the fan is connected with a cold stream inlet of the heat exchanger, a cold stream outlet of the heat exchanger is connected with one end of the combustor through the mixing pipeline, the mixing pipeline is provided with a gas connecting pipe, a catalyst carrier is arranged in the combustor, and the other end of the combustor is connected with a hot stream inlet of the heat exchanger. A carrier temperature sensor connected with the catalyst carrier is arranged on the combustor, the heating device is connected with the combustor, pressure sensors and temperature sensors are arranged at the two ends of the combustor, and the observation device is connected with an inner cavity of the combustor. The actual working conditions of combustors in SOFC systems of different specifications can be simply and quickly simulated, and the performance verification test of the catalyst is realized.

The invention discloses a cobalt-free high-entropy Ruddlesden-Popper phase solid oxide fuel cell cathode material and a preparation method of the cobalt-free high-entropy Ruddlesden-Popper phase solid oxide fuel cell cathode material. The cathode material is of an A2BO4 type Ruddlesden-Popper phase structure, and the structure of the cathode material is as shown in the specification. Wherein the A-site element is composed of La, Pr, Nd and Sr which are mixed according to the molar ratio of 3: 3: 3: 1, and the B-site element is Ni element; the molar ratio of the A-site element to the B-site element is 2: 1; the chemical formula of the material is La0. 6Pr0. 6Nd0. 6Sr0. 2NiO4, and the material has excellent conductivity and peak output power density, and shows excellent carbon dioxide tolerance and remarkable cost advantage. And the service life of the SOFC is prolonged, and industrialization promotion of the SOFC is facilitated.

The invention discloses a preparation method of an SOFC (solid oxide fuel cell) cathode material and a connector coating material, and relates to the technical field of solid oxide fuel cells, an aqueous solution of a coprecipitant is adopted to replace pure water to wash a precursor, acid radical ions brought in by metal salt can be removed, dissolution and precipitation of a lanthanum source precursor can be inhibited, and the performance of the precursor is improved. The growth of lanthanum source precursor particles is avoided, and the problem that the precursor cannot be completely subjected to phase formation during high-temperature calcination due to the growth of the lanthanum source precursor particles when the precursor is washed by pure water is solved.

The invention provides a prediction method and a prediction device for the service life of a solid oxide fuel cell SOFC. The prediction method comprises the following steps: acquiring multi-source state data and obtaining a multi-domain feature set based on the multi-source state data; obtaining a first comprehensive health index sequence based on attention features in the multi-domain feature set; obtaining a sub-sequence based on the first comprehensive health index sequence, and dividing the sub-sequence into a low-frequency trend component and a high-frequency residual component; inputting the low-frequency trend component into a first data model, inputting the high-frequency residual component into a second data model, and respectively obtaining a low-frequency prediction sequence and a high-frequency prediction sequence; adjusting parameters of the first data model and the second data model by using the physical model, and predicting to obtain a physical model prediction sequence; and obtaining a residual service life prediction result of the SOFC based on the data model prediction sequence and the physical model prediction sequence. Therefore, the accuracy of predicting the service life of the SOFC can be improved.

The invention discloses an electricity-hydrogen-heat coupling new energy system and an energy management method thereof, and relates to the technical field of energy management, and the method comprises the steps: monitoring the difference power between the wind-solar power generation power and the load demand of a user, the outdoor temperature, the hydrogen storage capacity of a hydrogen storage tank, the charge state of a storage battery, and the heat storage capacity of a fused salt storage tank in real time; according to the difference power and the outdoor temperature, the following energy management strategies are executed: when the output of the wind power generation module and the solar photovoltaic power generation module is greater than the load demand, excess power is stabilized through hydrogen production of an alkaline electrolytic cell, charging of a storage battery and heating of a fused salt storage tank; when the output of the wind power generation module and the solar photovoltaic power generation module is smaller than the load demand, the solid oxide fuel cell, the gas turbine and the storage battery are used for meeting the load power consumption; according to the method, coupling control over electricity, hydrogen and heat is achieved, the wind curtailment and light curtailment rate is reduced, and the overall energy utilization rate of the system is improved.

The present invention relates to a high-strength and stable sealing material for solid oxide fuel cells and its application. The high-strength and stable sealing material for solid oxide fuel cells includes: glass powder modified by surface polysilazane and ceramic powder modified by surface polysilazane; the content of the ceramic powder modified by surface polysilazane is 5-30 wt%; the content of the glass powder modified by surface polysilazane is ≥70 wt%.

Hybrid propulsion systems that utilize liquid natural gas solid oxide fuel cells in a manner practical for use in aircraft that avoid the use of heavy batteries, provide transient response times suitable for use in aircraft, and / or simplify reactant pre-conditioning systems using a compressor and turbine pair operatively coupled to the solid oxide fuel cell. Such hybrid propulsion systems for an aircraft may include a liquid natural gas solid oxide fuel cell, a motor driven by electric power from the solid oxide fuel cell, a gearbox operatively coupled to the motor, and a turbofan engine configured to generate thrust for the aircraft. The turbofan engine may be configured to provide electric power and shaft power and may include a duct fan that is operatively coupled to the motor via the gearbox, with the duct fan being driven by mechanical power from the gearbox and by the motor.

The present invention belongs to the field of SOFC, and specifically relates to a SOFC anode prepared based on nickel foam, a preparation method, a single cell, and a stack. The present invention provides a solid oxide fuel cell anode, and the solid oxide fuel cell anode includes nickel foam and a YSZ / NiO porous ceramic supported on the nickel foam. The present invention uses nickel foam as a carrier, and utilizes its characteristics of having a large number of natural pores, good ductility, and being easy to cut into various shapes. A Ni-YSZ composite slurry is loaded on the nickel foam to prepare a SOFC anode, so that the anode naturally has a large number of pores, good ductility, and a formed Ni network; the SOFC anode has good mechanical properties and good electronic conductivity, and can meet different usage requirements.