109 results about "High-temperature electrolysis" patented technology

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 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 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 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 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 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 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 application provides a temperature-controlled and localized whole-blade-disc rough and fine combined electrolytic machining device and method. The electrolytic machining device comprises a machining cathode and a partitioned temperature-controlled liquid supply assembly. The machining cathode is provided with a first flow channel with an outlet formed at an end portion, and a second flow channel is formed between two adjacent machining cathodes. The partitioned temperature-controlled liquid supply assembly supplies high-temperature electrolyte to the first flow channel and low-temperature electrolyte to the second flow channel in a first state, and supplies low-temperature electrolyte to the first flow channel and high-temperature electrolyte to the second flow channel in a second state. The temperature-controlled and localized whole-blade-disc rough and fine combined electrolytic machining device can make the machining cathode complete the separate machining of the blade channel and the blade by switching the state of the partitioned temperature-controlled liquid supply assembly, and other machining cathodes do not need to be replaced during the machining process, so that the rapid switching and continuous machining of the blade electrolytic rough machining and fine machining of the whole-blade-disc can be realized under lower structural complexity, and the electrolytic machining efficiency of the whole-blade-disc is improved.

The invention relates to fluorophenyl asymmetric lithium salt as well as a synthesis method and application thereof, belongs to the field of lithium ion batteries, and solves the problems that an existing film-forming additive is poor in stability, and the electrolyte viscosity and impedance of the lithium ion battery are increased after the electrolyte is introduced; the problems that an existing high-temperature electrolyte is poor in high-temperature stability, and a lithium ion battery is low in capacity retention capacity, poor in volume stability and poor in high-temperature cycle performance are solved. A fluorophenyl asymmetric lithium salt has various chemical structures, and R in the chemical structures is a substituent of any one or more sites on a benzene ring. The fluorophenyl asymmetric lithium salt is used for the lithium ion battery, and the prepared lithium ion battery is good in high-temperature stability, volume stability and high-temperature cycle performance and high in capacity retention capacity.

A system comprising two electrolysis subsystems for electrolysis of water to produce hydrogen, wherein the first subsystem produces waste thermal energy and the second uses this energy. One of the sub

The application discloses a high-temperature-resistant electrolyte membrane oxidation stability test method and device thereof. The high-temperature-resistant electrolyte membrane oxidation stability test method comprises the following steps: 1) obtaining a phosphoric acid-doped high-temperature-resistant electrolyte membrane; 2) placing the phosphoric acid-doped high-temperature-resistant electrolyte membrane in a mixed solution containing phosphoric acid and Fe 2+ , and heating; 3) introducing a carrier gas carrying H2O2 into the mixed solution, collecting tail gas, and analyzing the stability of the high-temperature-resistant electrolyte membrane through the tail gas. The method is a non-in-situ test method, can truly simulate the acidic environment in which the high-temperature-resistant electrolyte membrane is located, can indirectly reflect the internal changes of the high-temperature-resistant electrolyte membrane, can evaluate the influence of the acid content on the oxidation stability of the high-temperature-resistant electrolyte membrane, and has guiding significance for membrane electrode preparation.

The invention discloses a plateau area gas turbine combined cooling heating and power system based on solar water electrolysis hydrogen production, and relates to the field of renewable energy utilization, which comprises a solar multi-energy capture module, a high-temperature water electrolysis hydrogen production module, a composite hydrogen storage module and a gas turbine power generation module, the high-temperature water electrolysis hydrogen production module is used for performing water electrolysis hydrogen production treatment on the basis of heat energy and water of the solar multi-energy capturing module; the gas turbine power generation module generates power on the basis of oxygen and hydrogen, and meanwhile tail gas exhausted by the gas turbine power generation module is preheated and utilized in a sectional mode. According to the plateau area gas turbine combined cooling heating and power supply system based on solar water electrolysis hydrogen production, the solar water electrolysis hydrogen production technology is combined with a gas turbine power generation system, the problem that oxygen is insufficient due to thin air in a plateau area is solved, oxygen is stored through high pressure and supplied to a gas turbine, and the energy consumption is reduced. And the combustion efficiency is remarkably improved, so that the gas turbine can efficiently operate in a plateau oxygen-deficient environment.

The invention provides a device and a method for preparing methanol by combining new energy hydrogen production with biomass pressurized oxygen-enriched combustion. The device comprises a new energy hydrogen production unit, a biomass pressurized oxygen-enriched combustion unit, a methanol synthesis unit and a second high-temperature electrolysis unit, the new energy hydrogen production unit comprises a photovoltaic module, a wind power module and a first high-temperature electrolysis unit; the photovoltaic module and the wind power module are connected with the first high-temperature electrolysis unit; the new energy hydrogen production unit and the biomass pressurized oxygen-enriched combustion unit are both connected with the methanol synthesis unit; and the biomass pressurized oxygen-enriched combustion unit is connected with the second high-temperature electrolysis unit. The new energy hydrogen production unit is used for producing green hydrogen, the biomass pressurized oxygen-enriched combustion unit is used for producing green carbon dioxide, then green methanol synthesis is carried out, the biomass utilization efficiency is effectively improved, meanwhile, the green methanol preparation cost is reduced, and the method is suitable for large-scale application and popularization.

The invention relates to the technical field of lithium ion batteries, and discloses a composition for a high-temperature electrolyte, the high-temperature electrolyte, a preparation method of the high-temperature electrolyte and a lithium ion battery. The composition for the high-temperature electrolyte contains a lithium salt, a solvent, a film-forming additive and a high-temperature additive, on the basis of the total weight of the high-temperature electrolyte, the content of the lithium salt is 10-14 wt%, the content of the solvent is 75-85 wt%, the content of the film-forming additive is 3-6 wt%, and the content of the high-temperature additive is 1-5 wt%; the high-temperature additive is a combination of a fluorobenzene compound and thiosemicarbazone in a mass ratio of 1: (0.8-1.2). The high-temperature electrolyte provided by the invention can obviously improve the high-temperature cycle performance of the lithium ion battery.

The invention discloses an alkaline electrolytic bath with a backflow temperature equalizing structure. The alkaline electrolytic bath comprises an electrolytic bath body and a backflow temperature equalizing assembly. The electrolytic cell body comprises bipolar plates, a pole frame and an electrolyte inlet and outlet, electrolyte flows in the inlet and outlet direction, and the bipolar plates are oppositely arranged to define a small electrolytic chamber. A backflow channel is formed in the backflow temperature equalizing assembly, one end of the channel is connected with the electrolyte outlet, and the other end of the channel extends to the inlet area. A flow guide structure is arranged at the electrolyte inlet, at least two flow dividing channels can be divided, the flow dividing channels comprise a low-temperature channel communicated with the inlet and a high-temperature channel communicated with the backflow channel, and the flow guide structure guides electrolyte in the two channels to be mixed and then flow into the small electrolysis chamber. An internal circulation channel is constructed through the backflow temperature equalizing assembly, heat of high-temperature electrolyte at an outlet is recycled, and the problem that the temperature in small electrolysis chambers and the temperature between the small chambers are not uniform due to one-way flowing of electrolyte in a traditional alkaline electrolytic cell is effectively solved.

The invention relates to the technical field of nuclear energy, new energy and chemical industry crossing, and discloses a nuclear energy-based zero-carbon system, which comprises a fresh water subsystem; the CO2 trapping subsystem is used for trapping CO2 gas from the air; the high-temperature electrolysis subsystem is used for receiving the CO2 gas transmitted from the CO2 capturing subsystem and the water vapor transmitted from the fresh water subsystem so as to prepare mixed synthesis gas through electrolysis; the nuclear energy subsystem supplies heat and power to the fresh water subsystem, so that the fresh water subsystem generates water vapor and supplies power to the CO2 capturing subsystem and the high-temperature electrolysis subsystem; and the chemical raw material synthesis subsystem is used for receiving the synthesis gas transmitted by the high-temperature electrolysis subsystem so as to prepare chemical raw materials. Heat energy and electric energy of the nuclear energy subsystem are directly utilized, nuclear energy and chemical production are organically combined, multi-energy complementation and gradient utilization of energy are achieved, the energy utilization efficiency is improved, the energy source is expanded, carbon emission is reduced, and a zero-carbon system is constructed.