137 results about "High-temperature electrolysis" patented technology

The invention relates to the technical field of power electronic components, and discloses a high-temperature-resistant electrolytic capacitor which comprises the following components in parts by weight: 80-90 parts of a graphene or carbon nanotube coating used for preparing an electrolytic capacitor shell; the invention further provides a preparation method of the high-temperature-resistant electrolytic capacitor, and the preparation method comprises the following steps: heat conduction optimization design: simulating a temperature field of the electrolytic capacitor through an unsteady-state heat conduction equation, optimizing a heat dissipation path of the electrolytic capacitor, and improving the heat dissipation performance of the electrolytic capacitor; and heat can be uniformly conducted to an external heat dissipation device. By introducing the microencapsulated phase change material, the graphene coating and the accurate temperature sensor array and optimizing heat dissipation design, efficient heat dissipation, temperature balance and long-term stability of the electrolytic capacitor in a high-temperature environment are achieved, the working performance of the electrolytic capacitor is remarkably improved, and the service life of the electrolytic capacitor is remarkably prolonged.

The invention provides an energy storage container fireproof heat insulation performance evaluation method comprising the following steps: obtaining battery pack layout, temperature, electrolyte state and pressure change in an energy storage container, and carrying out pretreatment to obtain initial trigger characteristics of battery thermal runaway; acquiring material distribution and structural parameters of the bay firewall in the spraying erosion damage area, and simulating the erosion effect of high-temperature electrolyte spraying on the partition wall through a finite element analysis algorithm to obtain a partition wall damage distribution range; acquiring temperature gradient distribution data of the partition wall in the risk area where the fire breaks through isolation, and calculating thermal stress difference caused by temperature gradient to obtain the accumulation degree of structural fatigue; predicting the remaining service life of the partition wall structure according to the accumulation degree of structural fatigue, and adjusting the material thickness and the layered structure of the partition wall according to the design life requirement; and according to the generation probability of the partition wall cracks, dynamically updating the material ratio and the structure parameters of the partition wall, and generating a final firewall design scheme.

The present invention relates to a saltwater evaporator (1) with a housing (10) which substantially encloses an interior space (11) with at least one vapor outlet opening (12) and has at least one first saltwater inlet (11a), wherein the surface of the interior space (11) and the first saltwater inlet (11a) are configured to allow saltwater (A) to flow off as a saltwater film (B) along the vertical axis (Z) on the surface of the interior space (11), and with at least one heat source (16, 17) which is configured and arranged within the interior space (11) to heat the side of the saltwater film (B) facing away from the surface of the interior space (11), which faces the heat source (16, 17), without contact, such that exactly a portion of the liquid phase of the saltwater film (B) is evaporated, wherein the housing (10) further comprises at least one saltwater outlet (11c) of the interior space (11).which is arranged and designed along the vertical axis (Z) below the first saltwater inlet (11a) to drain the remaining part of the liquid phase of the saltwater film (B) out of the interior (11).

The invention relates to the technical field of aluminum electrolytic capacitor processing, and discloses a branched-chain carboxylate composite high-temperature-resistant aluminum electrolytic capacitor electrolyte and a preparation method thereof. Branched-chain carboxylate ammonium salt with a specific steric hindrance structure is used as a composite main solute; the steric hindrance effect brought by the branched chain structure greatly enhances the thermal stability of carboxylate anions and ammonium ions at a high temperature, the upper limit of the working temperature of the aluminum electrolytic capacitor can be stably increased to 135 DEG C or above, and the branched chain carboxylate can still keep high dissociation degree and ion mobility at a high temperature. The high-temperature ESR of the capacitor can be remarkably reduced by combining the optimally selected high-boiling-point and medium-viscosity solvent combination, the dynamic repair of the aluminum oxide dielectric layer on the surface of the anode foil can be promoted by adding the efficient film forming accelerant, the leakage current of the capacitor at the high temperature is greatly reduced, all the additives play a complementary role around the main solute, and the service life of the capacitor is prolonged. And an efficient and stable high-temperature-resistant electrolyte system is jointly constructed.

A continuous method includes passing a first steam feed stream and one or more of a recycled tail gas stream and a methane-rich feed stream to a cathode of a first electrolyzer containing the cathode, an anode and an electrolyte inserted between the cathode and the anode, thereby producing a cathode effluent including syngas, and passing the cathode effluent including syngas to a reactor unit, thereby producing a chemical product or a fuel-based product.

The invention discloses a green ammonia synthesis system based on calcium-based thermochemical energy storage and high-temperature electrolysis coupling. Comprising a renewable energy power generation system, a heat exchange working medium pump, a thermochemical energy storage unit, an air separator, a high-temperature electrolytic hydrogen production unit, a nitrogen storage tank, a hydrogen storage tank, a first steam storage tank, a third steam storage tank, an ammonia synthesis unit, a second heat exchanger, a second steam storage tank, a first heat exchanger and a water feeding pump, the system can effectively solve the problem of intermittency of renewable energy sources, and is low in cost and high in flexibility.

The invention relates to the preheating of a supply fluid for a high-temperature electrolyzer (6) using a system (1) comprising an absorption heat transformer (12).

The application discloses a flow field structure design method for a solid oxide electrolytic cell, and belongs to the technical field of solid oxide electrolytic cells; the method is based on the establishment of an electrolytic cell flow field topology domain, fluid flow, heat transfer and mass transfer processes are coupled modeling, the flow field structure is optimized and designed through the construction of multi-physical field constraint conditions, so that the flow field structure suitable for high-temperature electrolysis working conditions is obtained; the method takes improving the concentration of reaction gas and improving the temperature distribution as the design target, and the volume fraction of the flow channel and the pressure drop of the inlet and outlet are constrained, so that the obtained flow field structure can consider the mass transfer performance, the heat management performance and the operation stability; the flow field structure obtained by the method can effectively reduce the internal temperature gradient of the electrolytic cell, improve the gas distribution uniformity of the reaction area, and thus improve the current density and the operation stability of the electrolytic cell.

The invention essentially consists in integrating, into a receptacle (6), at least one electrochemical stack containing solid-oxide electrochemical cells (1), which stack is intended to operate at high temperature as an electrolysis or co-electrolysis reactor, a volume around the at least one electrochemical stack being filled with a material, at least one vitreous matrix of which material will act as a second gas-tight barrier, i.e. as an additional barrier to the barriers formed by the seals around the cathode and anode compartments of the stack.

The present invention provides a method for preparing iron and silicate slag from copper slag, and belongs to the technical field of solid waste resource utilization. The method for preparing iron and silicate slag from copper slag provided by the present invention comprises: electrolyzing molten copper slag to obtain iron and silicate slag; the temperature of the molten copper slag is 1200-1400°C. The present invention performs high-temperature electrolysis in a molten state of the copper slag, and can fully reduce the iron oxide in the copper slag to iron, thereby improving the recovery rate of iron. Experimental results show that the iron recovery rate of the method provided by the present invention is 80.51-95.52%.

The utility model provides a battery pack. The battery pack specifically comprises a bottom plate, an upper cover and an isolation baffle plate, the upper cover is arranged on the bottom plate, and an accommodating space is formed by the upper cover and the bottom plate; the isolation baffle is detachably arranged in the accommodating space and is used for isolating the battery module and the acquisition module which are arranged in the accommodating space; the battery module and the acquisition module which are arranged in the accommodating space are isolated by the isolation baffle, so that physical isolation exists between the battery module and the acquisition module, and the isolation baffle can effectively prevent high-temperature electrolyte and the like which are generated when the battery module is subjected to thermal runaway from being sprayed onto the isolation baffle; the normal operation of the acquisition module is effectively prevented from being influenced after thermal runaway of the battery pack, the acquisition module can normally acquire relevant parameters of the battery, and the battery management system can normally give an early warning, so that emergency time is provided for workers, and the safety of the battery pack is improved.

The application discloses a preparation method for improving stability of a proton conductor electrolyte in carbon dioxide, relates to the technical field of solid oxide batteries and solid oxide electrolysis cells, and is characterized by the following steps: through a nano-additive surface modification method, a nano-structure additive of an alkaline earth metal oxide, or a transition metal oxide, or a VA main group metal oxide is prepared on the surface of a barium cerate and a barium zirconate series electrolyte obtained through a solid phase reaction method by using a vacuum impregnation method, and an alkaline proton conductor electrolyte with a surface modification additive is obtained. The alkaline proton conductor electrolyte with the surface modification nano-structure additive obtained by the application can be applied to a proton type carbon hydrogen ceramic membrane fuel cell or high-temperature electrolysis carbon dioxide, so that the stability of the electrolyte can be effectively enhanced, and ohmic loss can be reduced, thereby greatly improving the performance and stability of the solid oxide fuel cell and the electrolysis cell under a carbon dioxide atmosphere.

The present invention relates to a device for directly preparing dry pure hydrogen by high-temperature electrolysis. A water vapor generator is connected between a pure water tank and a proton-conducting SOEC electrolyzer to evaporate water from the pure water tank into water vapor and provide water vapor to the proton-conducting SOEC electrolyzer. The proton-conducting SOEC electrolyzer is composed of a plurality of electrolysis units connected in series. Each electrolysis unit includes an oxygen side channel and a hydrogen side channel located on opposite sides of a proton-conducting high-temperature solid electrolyte. After water vapor enters the oxygen side channel and is electrolyzed, it loses electrons to produce oxygen. The electrolyzed hydrogen ions enter the hydrogen side channel through the proton-conducting high-temperature solid electrolyte to obtain electrons and directly obtain dry hydrogen. A hydrogen storage device is connected to the hydrogen side channel of the proton-conducting SOEC electrolyzer to receive and store hydrogen. The device for directly preparing dry pure hydrogen by high-temperature electrolysis has the advantages of high hydrogen purity, low dew point, short startup time, high hydrogen production efficiency, simple process, and higher safety and reliability.

The invention discloses a Mars surface nuclear energy utilization system for comprehensive thermoelectric hydrogen storage and production, and relates to a Mars surface nuclear energy utilization system. The invention aims to solve the problem that the Mars base needs an efficient and reliable energy system. The system comprises a Brayton thermoelectric conversion device, one side of the Brayton thermoelectric conversion device is connected with a high-temperature electrolytic hydrogen production device, the other side of the Brayton thermoelectric conversion device is connected with a laser wireless energy transmission device, and the Brayton thermoelectric conversion device is further connected with a heat supply device and a Carnot battery energy storage device; the heat supply device provides heat for the Mars base, and the Brayton thermoelectric conversion device provides power for power utilization facilities, the high-temperature electrolytic hydrogen production device and the laser wireless capacity transmission device of the Mars base. The invention belongs to the technical field of nuclear energy comprehensive utilization.

This invention discloses a high-temperature resistant SPE water electrolysis system and control method. The system includes an electrolyzer with one inlet and two outlets; a hydrogen pipeline connected to one outlet of the electrolyzer, with a ball valve, a hydrogen separator, and a hydrogen-side outlet valve sequentially connected along the hydrogen flow direction; an oxygen pipeline connected to the other outlet of the electrolyzer, with a ball valve, an oxygen separator, and an oxygen-side outlet valve sequentially connected along the oxygen flow direction; a circulation pipeline with its inlet connected to both the hydrogen separator and the oxygen separator, and a high-temperature pipeline and a low-temperature pipeline connected in parallel at the outlet of the circulation pipeline, with a water purification filter connected in the low-temperature pipeline; a mixing tank with two inputs connected to the high-temperature pipeline and the low-temperature pipeline, and its output connected to the inlet of the electrolyzer; and a control subsystem capable of real-time monitoring of the system's water temperature and quality, and controlling the operating parameters of relevant equipment based on the monitoring information to deliver circulating water at the required temperature into the electrolyzer.

The embodiment of the invention discloses an air water-catching and carbon-catching coupled high-temperature electrolytic hydrogen production system. The system comprises a high-temperature electrolytic hydrogen production device, a heating device, an air water-catching device, an air carbon-catching device and a heat exchange device, an inlet of the high-temperature electrolytic hydrogen production device is respectively communicated with outlets of the air water capturing device and the air carbon capturing device, and an outlet of the high-temperature electrolytic hydrogen production device is communicated with an inlet of the heating device; inlets of the air water capturing device and the air carbon capturing device are respectively communicated with an external air source; a working medium outlet of the heating device is respectively communicated with heat exchange working medium inlets of the high-temperature electrolytic hydrogen production device, the air water catching device, the air carbon catching device and the heat exchange device, and heat exchange working medium outlets of the high-temperature electrolytic hydrogen production device, the air water catching device and the air carbon catching device are communicated with a heat exchange working medium inlet of the heat exchange device. Carbon dioxide and water are directly converted into synthesis gas in a proper proportion through high-temperature electrolysis, and the problems of reaction raw material obtaining and hydrogen storage and transportation are solved while electric power storage is achieved.

The present invention concerns a metal material production configuration (1) and a method of direct reduction of a metal oxide material (5) holding a first thermal energy into a direct reduced metal material (16) by means of a metal material production configuration (1).The method comprises charging the metal oxide material (5), holding the first thermal energy, into a direct reduction facility (7); introducing a hydrogen, holding a second thermal energy, into the direct reduction facility (7).The invention involves reducing the metal oxide material (5) by using the first thermal energy of the metal oxide material (5) to heat or further heat the introduced hydrogen containing reducing agent (8) toward a required reaction temperature for providing a chemical reaction. A high-temperature exit gas (12) is removed from the direct reduction facility and fed to a high-temperature electrolysis unit (21) configured to produce the hydrogen.

According to the solid oxide battery sealing material and the preparation method thereof provided by the invention, the solid oxide battery sealing material is prepared by taking blast furnace slag as a raw material, and the solid oxide battery sealing material can be used in a solid oxide battery for producing hydrogen by electrolyzing water at a medium-high temperature or reversely generating power; the device has good chemical stability and thermal stability, still keeps good sealing performance during long-term high-temperature electrolysis of water vapor and high reducing atmosphere, and realizes high-value utilization of blast furnace slag in the field of clean energy.

The invention discloses a hardware-in-the-loop test system and method for a solid oxide high-temperature electrolysis system, which are used for testing the performance of a controller and an electrolysis power supply of an SOEC system. Comprising an electronic load used for simulating an electric pile body of an SOEC system and absorbing voltage and current output by an electrolysis power supply; the real-time simulation machine is used for operating a real-time simulation model, and the real-time simulation model is configured to be capable of simulating and outputting a virtual sensor signal of the galvanic pile according to the state parameters of the virtual actuator; and the peripheral board card is used for communication between the real-time simulation machine and the controller. According to the method, a virtual electric pile combining a multi-physics field coupled SOEC electric pile model and a high-dynamic electronic load is adopted to replace an SOEC electric pile entity for testing, so that the testing process can be parallelized and automated, the testing cost is remarkably reduced, and the research and development period is greatly shortened; by designing an integrated fault injection mechanism and a signal interface with a high security level, comprehensive verification of extreme faults is realized.

The invention relates to a regulation and control optimization method for a high-temperature solid oxide (SOEC) electrolytic hydrogen production system considering oxygen electrode degradation. An optimization module and a neural network predictive control (NNPC) module are included. The optimization module calculates and generates an optimal operation curve of the high-temperature electrolytic hydrogen production system in a preset operation range, namely a minimum oxygen partial pressure and maximum hydrogen production efficiency curve; the NNPC control module obtains a value of a current input variable according to the optimal operation curve, obtains a predicted value of a system output variable, and reduces an error with an expected value through rolling optimization to determine a control sequence; and the high-temperature electrolytic hydrogen production system module describing the oxygen partial pressure characteristics receives the control sequence as a system operation condition, feeds back key parameters in the system to the NNPC control module, and continuously updates the parameters of the model and the controller. According to the method, the optimal operation curve serves as feedforward control, SOEC electrolysis voltage, inlet and outlet temperature difference and system outlet stream variables in the system serve as feedback control, and therefore the system can achieve rapid and safe thermoelectric response when dealing with external disturbance, and the working conditions that the oxygen electrode degradation risk is lowest and the system efficiency is highest are kept all the time.

The invention provides an energy self-consistent method for a water electrolysis hydrogen production factory. The energy self-consistent method for the water electrolysis hydrogen production factory comprises the steps that high-temperature electrolyte in an electrolytic bath flows to a gas-liquid separator through a pipeline; the high-temperature electrolyte in the gas-liquid separator flows to the cascade energy storage tank; the cooled electrolyte flows to the electrolytic bath through a circulating pump; wherein gas in the gas-liquid separator flows into the gas diaphragm valve, and finally the gas respectively flows to the hydrogen purification equipment and the oxygen aftertreatment device through the gas diaphragm valve; and the first step heat storage tank is moved to a place needing heat from the water electrolysis hydrogen production side through the movable energy storage vehicle. Waste heat on the two sides of the system is more reasonably allocated through the movable energy storage vehicle, the energy utilization rate is increased, and the technical problem that in the prior art, an energy self-consistent system of an efficient heat utilization water electrolysis hydrogen production factory is lacked is solved.

The application belongs to the technical field of separation membranes, and discloses a high-temperature-resistant ceramic separation membrane and a preparation and application thereof.A high-temperature-resistant ceramic separation membrane is obtained by sequentially performing acid etching, hydrophobic material soaking and irradiation cross-linking treatment on a tubular membrane or a hollow fiber membrane.The high-temperature-resistant ceramic membrane effectively realizes the separation of hydrogen and water vapor at high temperature, realizes the reuse of high-temperature water vapor, reduces the consumption of heat energy and water resources in the high-temperature water vapor electrolysis technology, and significantly reduces the production cost in the high-temperature water vapor electrolysis process.

The application relates to the technical field of manganese-aluminum alloy preparation, in particular to a method for rapidly preparing an aluminum-manganese alloy mother liquor. The method comprises the following steps: firstly, uniformly crushing manganese additives, and adding the manganese additives into the bottom of a vacuum aluminum tapping ladle before electrolytic aluminum is tapped; then, performing aluminum tapping work, adding high-temperature electrolytic aluminum liquid from the top of the vacuum aluminum tapping ladle to mix with the manganese additives, combining into an aluminum-manganese alloy mother liquor, then transferring the vacuum aluminum tapping ladle after the high-temperature electrolytic aluminum liquid is added to a melting and casting workshop, and obtaining the uniform aluminum-manganese alloy mother liquor. By using the method, the absorption rate and absorption speed of element manganese are more optimal, pollution caused by fluorine to the environment in the preparation process is eliminated, aluminum and manganese are automatically high-temperature stirred, uniformly mixed, dross is emptied, and uniformization is realized, and the like, the production cost is reduced, the production efficiency is improved, and energy waste is reduced.

The invention relates to the field of hybrid supercapacitors, in particular to a high-temperature-resistant electrolyte for a supercapacitor and a preparation method and application of the high-temperature-resistant electrolyte. According to the high-temperature-resistant electrolyte, a composite multi-element functional additive is added into the high-temperature-resistant electrolyte, and the composite multi-element functional additive comprises fluoro boric acid ester TFEB (tris (2, 2, 2-trifluoroethyl) boric acid ester), 1, 3, 5-trimethyl-1, 3, 5-tris (3, 3, 3-trifluoropropyl) cyclotrisiloxane) and vinylene carbonate. Through the collaborative design of the composite multi-functional additive and the optimized solvent system, the performance stability of the hybrid supercapacitor in a high-temperature environment is remarkably improved.

The present invention relates to a hydrogen energy city structure based on high-temperature electrolysis hydrogen production, which includes a renewable energy power generation device that collects a first renewable energy for power generation; a renewable energy heating device that collects a second renewable energy for generating high-temperature molten salt; a molten salt heat storage device for storing high-temperature molten salt connected downstream of the renewable energy heating device; a high-temperature electrolysis hydrogen production device for generating hydrogen is respectively connected downstream of the renewable energy power generation device and the molten salt heat storage device to produce hydrogen, wherein the electric energy delivered by the renewable energy power generation device and the heat energy delivered by the molten salt heat storage device are matched and supplied to the high-temperature electrolysis hydrogen production device in real time; a hydrogen storage device for storing hydrogen is connected downstream of the high-temperature electrolysis hydrogen production device; and a hydrogen transport device for transporting hydrogen is connected downstream of the hydrogen storage device. According to the hydrogen energy city structure based on high-temperature electrolysis hydrogen production of the present invention, various renewable energy sources in nature are flexibly utilized through the high-temperature electrolysis hydrogen production device.

The present invention relates to a cathode material for a solid oxide electrolysis cell, as well as its preparation and use. The molecular formula of the cathode material for a solid oxide electrolysis cell is La x Sr 1-x Fe 0.8 Cu y Ni 0.2-y O 3-δ (wherein 0.1≦x≦0.9, 0.01≦y<0.2, and 0≦δ≦0.5). An electrolysis cell prepared by using the cathode material can efficiently convert CO2 and HO into synthesis gas through electrochemical catalysis. Furthermore, the electrolysis cell can perform high-temperature electrolysis of water vapor and / or carbon dioxide at a temperature of 800°C and an electrolysis current density of 0.5 A / cm. 2 As a result, continuous and stable production can be achieved, and industrial applications are expected.

A continuous method includes passing a feed stream comprising steam and carbon dioxide, and one or more of a recycled tail gas stream and a methane-rich feed stream to a cathode of a first electrolyzer comprising the cathode, an anode and an electrolyte inserted between the cathode and the anode, thereby producing a cathode effluent comprising syngas, and passing the cathode effluent comprising syngas to a reactor unit, thereby producing a chemical product or a fuel-based product.

The invention discloses an energy storage system and method for coupling carbon dioxide power generation and high-temperature electrolytic hydrogen production, and relates to the technical field of energy and chemical engineering, and the energy storage system comprises a renewable energy power generation mechanism, a high-temperature electrolytic hydrogen production system, a heat energy storage and recycling system and a carbon dioxide cycle power generation system. According to the invention, the high-temperature electrolytic hydrogen production system is started to store energy when the electric power is in a low ebb, the renewable energy is limited or the electric energy quality does not meet the on-grid requirement; the carbon dioxide cycle power generation system is started to release energy during power consumption peak, power accidents or large fluctuation of renewable energy power generation, the method has good load adjusting capacity, the load can be fully pulled from zero in a short time, and the operation process is clean, low-carbon and high in stability.

The present invention relates to a saltwater evaporator (1) comprising a housing (10), which substantially encloses an inner space (11) having at least one steam outlet opening (12) and has at least a first saltwater feed (11a), wherein the surface of the inner space (11) and the first saltwater feed (11a) are designed to allow saltwater (A), as a saltwater film (B), to run off along the vertical axis (Z) on the surface of the inner space (11), and comprising at least one heat source (16, 17), which is designed and arranged within the inner space (11) in order to contactlessly heat the side of the saltwater film (B) which faces away from the surface of the inner space (11) and faces the heat source (16, 17) in such a way that exactly one part of the liquid phase of the saltwater film (B) is evaporated, wherein the housing (10) further comprises at least one saltwater outlet (11c) of the inner space (11), which is arranged and formed along the vertical axis (Z) below the first saltwater feed (11a) to carry off the rest of the liquid phase of the saltwater film (B) out of the inner space (11).