47 results about "Air cathode" patented technology

The invention belongs to the technical field of air power supplies, and relates to modification treatment of an oxide, in particular to a cerium oxide doped transition metal oxide and a preparation method thereof, an air cathode and an air power supply. The preparation method comprises the following steps: dissolving cerium salt, cobalt salt and manganese salt in water, uniformly mixing to obtain a mixed solution, adjusting the pH value of the mixed solution to 9-11, and carrying out a sedimentation reaction to obtain a sediment; and drying the precipitate, and calcining in an air atmosphere at 300 + / -10 DEG C for 2-4 hours to obtain the cerium oxide doped transition metal oxide. The cerium oxide doped transition metal oxide is cerium doped cobalt manganese oxide with a spinel structure, and the doping amount of cerium is 20 + / -1wt%. The cerium oxide doped transition metal oxide provided by the invention is applied to an air cathode as a catalyst, and has good stability and high catalytic activity. The performance of an air power supply containing the oxide is remarkably improved. The method for preparing the oxide provided by the invention is simple and easy to operate, and is suitable for large-scale production.

The invention discloses a synthesis method and application of nitrogen-doped carbon-coated Co porous spheres, cobalt nitrate hexahydrate and 4-picolinic acid are dissolved in a mixed solution, the mixed solution comprises dimethylformamide and absolute ethyl alcohol, then the mixed solution is transferred into a reaction kettle for heating reaction, and after the reaction is finished, centrifugal drying is performed to obtain a Co coordination compound precursor; and calcining the precursor in an argon hydrogen atmosphere, and selecting and setting a proper heating rate, a proper calcining temperature and a proper calcining time to obtain the nitrogen-doped carbon-coated Co porous ball. The obtained nitrogen-doped carbon-coated Co porous ball is used as the air cathode of the zinc-air battery, so that high power density and excellent charge-discharge cycle stability are realized.

The invention belongs to the technical field of biosensors and environmental monitoring, and particularly relates to an MFC sensor loaded with an interpenetrating network nanofiber anode and application of the MFC sensor. Interpenetrating network nanofibers are prepared by adopting an electrostatic spinning technology and are loaded on a stainless steel mesh bracket to serve as a sensor anode electrode, and a titanium wire is connected with an air cathode through an external circuit to assemble the MFC sensor. The nanofiber has ultra-long length, high length-width ratio, specific pore structure, great specific surface area and high porosity, and has good biological compatibility with electrogenesis microorganisms, and the one-dimensional nanostructure can promote transmission of electrons from a biological membrane to an anode, so that an electric signal output by the sensor is enhanced. Therefore, when the prepared novel MFC sensor is applied to concentration analysis of pollutants in wastewater and early warning of toxic substances, the sensitivity can be greatly improved, and the response time can be greatly shortened.

The invention belongs to the technical field of sodium hypochlorite preparation, and provides a hydrogen-free sodium hypochlorite preparation system and a sodium hypochlorite preparation technology.The sodium hypochlorite preparation system comprises a brine electrolysis device, and a liquid inlet of the brine electrolysis device communicates with a pipeline mixer through an electrolyte conveying pipeline; a liquid inlet of the pipeline mixer is respectively communicated with a saturated salt water preparation device and a saturated salt water dilution device, a liquid outlet of the salt water electrolysis device is communicated with a sodium hypochlorite storage tank through a sodium hypochlorite conveying pipeline, and a liquid outlet of the sodium hypochlorite storage tank is communicated with a metering and adding device; the brine electrolysis device comprises an air cathode electrolytic cell and a rectification power supply, the air cathode electrolytic cell comprises a cell body, the cell body is provided with a containing cavity for containing electrolyte, and an anode and a cathode which are electrically connected with the rectification power supply are fixedly installed on the cell body. According to the method, the sodium hypochlorite solution is prepared efficiently and safely, no hydrogen is generated in the electrolysis process, the operation safety is remarkably improved, and the method is safer and more environmentally friendly.

The invention discloses a preparation method of an AB-N-P-x microbial fuel cell (MFCs) air cathode catalyst, relates to a preparation and modification method of a microbial fuel cell cathode catalyst, and solves the problem of low electricity generation performance of an existing air cathode. The method comprises the following steps: pretreating straws by using melamine, KOH and KHCO3, then calcining in a programmable tubular furnace at 900 DEG C for 2 hours to obtain a black product, and pickling, washing and drying the black product in 1M hydrochloric acid. And putting NaH2PO4 into the upstream of a programmable tubular furnace, putting the dried black product into the downstream of the programmable tubular furnace, and calcining at 350 DEG C for 2 hours to complete the preparation of the AB-N-P-x microbial fuel cell cathode catalyst. According to the modified cathode catalyst obtained by the invention, through the synergistic effect of heteroatoms P and N, the performance of active sites is enhanced, and the electrode power generation efficiency is improved, so that the performance of the microbial fuel cell is improved.

A method and apparatus for generating electricity using an electrochemical dual-pole fuel cell with a coiled aluminum wire disc as the anode, dual air-cathodes, and dual bioplastic electrolyte discs. The invention teaches the use of inexpensive materials and simplified dual-pole fuel cell construction and assembling of fuel cells into modules, and modules into electricity generators.

The invention relates to the technical field of zinc-air batteries, and particularly discloses a quasi-solid zinc-air battery cathode material as well as a preparation method and application thereof. According to the cathode material, carbon black particles with aminated surfaces are used as a carrier, and ruthenium-cobalt bimetallic active components are loaded as a catalytic center. The preparation method of the cathode material comprises the following steps: dispersing aminated carbon black particles, ruthenium metal salt and cobalt metal salt in a water / methanol mixed solution, carrying out ultrasonic dispersion, and carrying out a hydrothermal reaction at a certain temperature; centrifuging, washing and drying the reaction product to obtain a solid precursor; and finally, carrying out thermal annealing treatment on the solid precursor under the inert gas protection condition to obtain the cathode material. The cathode material provided by the invention is suitable for an air cathode of a quasi-solid-state zinc-air battery, and has good catalytic activity and application prospect.

The invention discloses a modular series-parallel energy storage stack type microbial fuel cell sewage treatment system, and relates to the technical field of energy utilization in sewage treatment. Comprising a box body, a plurality of anode chambers, air cathodes and anodes, the anode chambers are arranged in the box body, and the air cathodes and the anodes are arranged on the anode chambers; the box body is of a rectangular cavity structure with an open top, a plurality of vent holes are evenly formed in the edge of the top of the box body, a water conveying opening is formed in the bottom of the box body, an anode chamber supporting frame is fixedly arranged at the inner bottom of the box body, and a fixing column is arranged at the included angle of the anode chamber supporting frame. According to the modular series-parallel energy storage stack type microbial fuel cell sewage treatment system adopting the structure, the problems that an existing stack type microbial fuel cell sewage treatment system is relatively low in treatment efficiency, low in output electric energy grade, inconvenient to maintain, poor in adaptability and the like are solved; the sewage treatment efficiency, the energy recovery quality, the maintenance convenience and the scene adaptability of the system are improved.

The invention relates to a preparation method and application of an iron / antimony diatom-nitrogen-carbon (Fe / Sb-N-C) composite material. The composite electrode is prepared according to the following steps: a, stirring at room temperature to synthesize a zeolite imidazole organic framework precursor (ZIF-8); b, preparing nitrogen-doped carbon through an annealing method; c, preparing a Fe / Sb-N-C precursor through solution dipping; and d, the Fe / Sb-N-C composite material is prepared through an annealing method. Fe / Sb-N-C shows excellent oxygen reduction reaction (ORR) catalytic performance, the half-wave potential is 0.92 V, the Tafel slope is 46.3 mV dec-1, and the performance is superior to that of commercial Pt / C. Besides, the zinc-air battery constructed by taking Fe / Sb-N-C as the air cathode can reach the maximum power density of 196mW cm <-2 > and the specific discharge capacity of 795mAh g <-1 >, can stably circulate for 1000 circles, and shows good practical application value. The preparation method can also be expanded to design of other diatomic composite materials, and a new idea is provided for development of efficient electrocatalysts.

An air cathode and an aluminum-air battery, wherein the air cathode contains an active material, the active material being any one or a mixture of two of the following materials: nickel oxide, iron oxide, manganese oxide, lithium-ion nickel oxide, lithium-ion iron oxide, lithium-ion manganese oxide; strontium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; calcium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; magnesium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; lanthanum nickelate doped with calcium and / or strontium; lanthanum ferrite doped with calcium and / or strontium; lanthanum cobaltate doped with calcium and / or strontium; lanthanum manganate doped with calcium and / or strontium; and graphite or metal carbonitride loaded with a metal.

The present application relates to hydrogen fuel cell system design technology, specifically relates to a kind of fuel cell system and control method;The system includes hydrogen anode module, air cathode module, air-cooled fuel cell stack and liquid-cooled fuel cell stack;Hydrogen bottle is connected with hydrogen gas shunt regulating device in hydrogen anode module;Hydrogen gas shunt regulating device is connected with air-cooled fuel cell stack and liquid-cooled fuel cell stack;Liquid-cooled fuel cell stack is connected with hydrogen gas shunt regulating device and liquid-cooled fuel cell stack;Air-cooled fuel cell stack is connected with hydrogen gas shunt regulating device and liquid-cooled fuel cell stack;Air-cooled fuel cell stack and liquid-cooled fuel cell stack are connected with exhaust and drainage structure;Air supply device in air cathode module is connected with air regulating device;Air regulating device is connected with the cathode of liquid-cooled fuel cell stack and the cathode of air-cooled fuel cell stack respectively;Liquid-cooled fuel cell stack is connected with the cathode of throttle valve;The present application improves the hydrogen utilization rate of overall fuel cell.

An electrolysis cell 21 comprises: a solid electrolyte layer 211; a fuel electrode layer 213 that is disposed as a stack on one surface side of the solid electrolyte layer 211; and an air electrode layer 212 that is disposed as a stack on the other surface side of the solid electrolyte layer 211. The fuel electrode layer contains Fe. When a surface 213a1 on the solid electrolyte layer side of the fuel electrode layer is defined as a first surface and a surface 213b2 on the side opposite from the solid electrolyte layer side is defined as a second surface, n points pk (where k is an integer of 1 to n) are set in the fuel electrode layer along the thickness direction at intervals such that a point p1 is located at the first surface, a point pn is located at the second surface, and k increases in the direction from the first surface toward the second surface, and when a value obtained by dividing, by n, a cumulative value of the Fe concentration at each of the points from the point p1 to the point pk is defined as a normalized cumulative value Ck of the Fe concentration at the point pk, a normalized cumulative value Cn is 0.118-0.367 wt%.

The present application relates to an electrochemical system and method for capturing carbon dioxide, regenerating pure carbon dioxide, and / or converting captured carbon dioxide to biomethane, syngas, formic acid, and combinations thereof. More specifically, the present application relates to an electrochemical cell having an air cathode-proton or cation exchange membrane and a non-biological or biological anode in which captured carbon dioxide is reduced to carbonate, which is then regenerated to pure carbon dioxide or transferred to another chemical production module. The regenerated carbon dioxide may be purified, compressed, or stored for later use. The present application includes volatile fatty acids derived from carbohydrate-rich waste. The present application also includes the ability to regenerate caustic absorbers used in initial carbon dioxide capture.

The invention relates to the technical field of metal air batteries, in particular to an electrolyte for a magnesium air battery, a preparation method of the electrolyte and the magnesium air battery, and the electrolyte is a mixed solution of sodium chloride, 5-sulfosalicylic acid compounds, deionized water and sodium fluoride; the mass fraction of the sodium chloride is 3.2%-3.7%; the concentration of the 5-sulfosalicylic acid compound is 0.04 mol / L to 0.06 mol / L; the concentration of the sodium fluoride is 0.004 to 0.006 mol / L; and the balance of deionized water. The pH value of the electrolyte is 7.0 + / -0.3; the preparation method of the electrolyte for the magnesium air battery comprises the following steps: S1, mixing the sodium chloride, the 5-sulfosalicylic acid compound and the sodium fluoride in proportion to form a mixture; s2, adding deionized water, and stirring until a uniform transparent solution is formed; s3, adjusting the pH value of the solution to 7.0 + / -0.3; the magnesium air battery comprises an anode material, an electrolyte and an air cathode, the problems that the anode of the magnesium-air battery is seriously self-corroded and a discharge product is difficult to fall off are solved.

The invention provides an electrolytic bath and a sodium hypochlorite generator, the electrolytic bath comprises a reaction unit, the reaction unit comprises an air cathode and an anode which are in a sheet shape and are arranged at an interval, the air cathode and the anode are sealed through a sealing spacer and form a liquid chamber, an air chamber is formed on one side, far away from the anode, of the air cathode, and the air chamber is communicated with the liquid chamber. The air cathode is used for reducing oxygen into hydroxyl ions; and the sealing spacers are arranged in the electrolytic bath in a criss-cross manner, so that a liquid chamber and a gas chamber which are isolated from each other are formed. The oxygen reduction reaction is adopted to replace the traditional cathode hydrogen evolution reaction, the structure is simple, the sealing spacers in the device are arranged in a criss-cross mode, it is guaranteed that oxygen makes full contact with an air cathode catalyst layer, and the problems of electrolyte disturbance, reaction efficiency reduction and the like caused by mixing of air and saline water are solved.

The invention discloses a liquid zinc-air battery based on an iron-gallium composite nitrogen-doped carbon material. A polished zinc plate is used as an anode, foamed nickel loaded with the iron-gallium composite nitrogen-doped carbon material is used as an air cathode, and a mixed aqueous solution of potassium hydroxide and zinc acetate is used as an electrolyte; according to the iron-gallium composite nitrogen-doped carbon material, iron and gallium serve as active components, nitrogen-doped carbon obtained through ZIF-8 pyrolysis serves as a carrier, and the mass content of the iron is 0.3%-6%, and the mass content of the gallium is 0.1%-2%. When the air cathode is applied to alkaline oxygen reduction reaction, the half-wave potential reaches up to 0.99 V or above, the current retention rate is larger than or equal to 95% after 40 hours, and the four-electron transfer number is close to 4. The peak power density of the zinc-air battery reaches 400 mW / cm < 2 > or above, the open-circuit voltage is 1.55 V, the specific capacity is 806.2 mAh / g under the current density of 10 mA / cm < 2 >, the charge-discharge cycle is stably kept for 355 h, and the requirements of the fields of portable electronic equipment, electric automobiles, energy storage systems and the like for high-performance and long-life energy conversion devices can be met.

An electrolysis cell 21 comprises: a solid electrolyte layer 211 that includes oxide particles containing Zr; a fuel electrode layer 213 that is stacked and arranged on one surface side of the solid electrolyte layer 211 and includes metal particles and oxide particles containing Ce; and an air electrode layer 212 that is stacked and arranged on the other surface side of the solid electrolyte layer 211. A Raman spectrum of Stokes scattered light of each of the solid electrolyte layer 211 and the fuel electrode layer 213 (213a) has a peak in a wave number region of 334 cm-1 or more and 531 cm-1 or less. When the half widths of the peaks of the Raman spectra of the solid electrolyte layer 211 and the fuel electrode layer 213 (213a) in the wave number region are defined as an electrolyte half width and a fuel electrode half width, respectively, the ratio of the electrolyte half width to the fuel electrode half width is 3.5 or more and 5.7 or less.

This invention relates to an iron-iron-phosphorus 3-point electrocatalyst with an asymmetric electronic structure and its application. The catalyst preparation method is as follows: zinc salt and iron salt are uniformly dispersed in a mixed solution of N,N-dimethylformamide and methanol, and 2-methylimidazole is added and uniformly dispersed in the same mixed solution to obtain a pale yellow powder. The pale yellow powder is uniformly dispersed in a methanol solution, and tannic acid solution is added and stirred to obtain a gray-green powder Fe@ZIF-8. Fe@ZIF-8 and p-phenylenediamine are dispersed in a tetrahydrofuran solution, and a phosphorus source and triethylamine are added to obtain polymer-coated Fe@ZIF-8. Fe@ZIF-8 is calcined to obtain a phosphorus-doped iron single-atom catalyst. The phosphorus-doped iron single-atom catalyst is ball-milled with iron salt and phthalocyanine to obtain an iron-iron-phosphorus 3-point electrocatalyst with an asymmetric electronic structure. This catalyst is applied to the air cathode reaction of a zinc-air battery.

The application provides an environment-friendly conventional cooling tower biological slime control method, and relates to a metal-organic composite material microbial electric coupling porous membrane structure. The structure comprises an activated carbon fiber felt anode and an air cathode, wherein the air cathode comprises porous PTFE as a diffusion layer, MnCo / NC nitrogen-doped bimetallic-based carbon composite organic material as a cathode catalyst layer, and porous carbon material as a base electrode. The anode and the air cathode are fixed as an integrated metal-organic composite material microbial electric coupling porous membrane structure by using a woven metal fiber mesh structure. The metal-organic composite material microbial electric coupling porous membrane structure is placed on the water surface of a conventional cooling tower bottom collecting pool, filters large-particle pollutants, adsorbs microorganisms in water, and inhibits the growth of algae in water. Through the removal of large-particle biological slime flocs, organic and inorganic pollutants and microorganisms in circulating cooling water, the application realizes the control of biological slime in a circulating cooling water pipe network.

The invention discloses an organic wastewater treatment device and method based on a photosynthetic microbial fuel cell, the device comprises a light-transmitting shell, the middle part of the light-transmitting shell is fixedly connected with a closed partition plate, and the middle part of the closed partition plate is in rotary threaded connection with a separation membrane frame; by integrating the stirring blades and the reciprocating stirring assembly, the system forms a composite flow field in the cathode chamber, gas, liquid and solid interface mass transfer boundary layers are effectively destroyed, the distribution uniformity of dissolved oxygen and the material exchange efficiency among microalgae, a solution and electrodes are remarkably improved, the oxygen mass transfer process is further enhanced in combination with microbubbles released by the aeration assembly, and the aeration efficiency is improved. An optimal reaction environment is created for photosynthesis of microalgae, and a microalgae biological membrane is driven to continuously rotate by adopting a driving rotating shaft, so that the contact frequency and the mass transfer efficiency of the microalgae, air and cathode liquor are enhanced, and the electricity generation efficiency of the device is improved.

A method and apparatus for generating electricity using ensemble electrochemical cells each comprising a tubular anodic inner chamber mesh, an anodic aluminum wire, a sandy anolyte medium, an anolyte based on a solution of sodium hydroxide or potassium hydroxide, a membrane separator, a carbonized cellulosic air-cathode doused in a catholyte, and an exterior mesh enclosure. The invention teaches the use of inexpensive materials and simple assembling of sandy fuel cells into a hypogeal electricity generator.

The present application relates to a kind of magnesium fuel cell, including single cell or 2 above single cell circuit series, parallel or series-parallel hybrid composition battery;The single cell includes a hollow single cell shell, is transversely arranged with a transition layer in the middle and lower part in single cell shell, the four peripheral edges of transition layer are sealedly connected with shell inner wall surface, transition layer will shell be divided into two upper and lower chambers not communicated each other, electrolyte is filled in upper chamber as electrolyte chamber, lower chamber is filled with regenerative liquid as regenerative liquid chamber;Anode, air cathode are placed in electrolyte chamber;The transition layer changes with the state change of battery discharge process, so that regenerative liquid can react with the discharge product in single cell through transition layer;The regenerative liquid is acid solution.The long-time continuous discharge feasibility of magnesium fuel cell is significantly improved.

The invention relates to the technical field of battery materials, in particular to an electrolyte additive, an electrolyte, a preparation method of the electrolyte and an aluminum air battery, and the electrolyte additive comprises peroxide, persulfate or iodate. The concentration of the peroxide ranges from 0.01 mol / L to 0.6 mol / L, the concentration of the persulfate ranges from 0.01 mol / L to 1 mol / L, and the concentration of the iodate ranges from 0.01 mol / L to 1 mol / L; the electrolyte additive peroxide, persulfate and iodate provided by the invention have relatively strong oxidability, and after the electrolyte additive peroxide, persulfate and iodate are added into an alkaline electrolyte or a neutral electrolyte, the peroxide, persulfate and iodate are simultaneously reduced besides oxygen is reduced at an air cathode in a discharge process, so that a cathode depolarization process is accelerated, and the discharge efficiency is improved. And the dynamic reaction speed of the cathode is increased, so that the power density of the aluminum-air battery is improved.

The application discloses a polyazo dye wastewater treatment device and a use method thereof, relates to the fields of power generation technology and degradation of refractory organic matter wastewater, and the device comprises a communicating reactor, a water inlet and a water outlet; a partition plate is arranged in the middle of the communicating reactor; the partition plate divides the communicating reactor into an anode chamber and a cathode chamber; an air cathode is arranged at the top of the cathode chamber, a perforated mesh cage is arranged in the anode chamber, an anode is arranged in the perforated mesh cage, and a region for containing soil containing microorganisms is arranged above the anode; the air cathode and the anode are connected with an external circuit through wires; the water inlet is arranged at the top of the cathode chamber, and the water outlet is arranged at the top of the anode chamber. The application uses soil as an anode matrix, degrades pollutants in wastewater through microorganisms in the soil, is low in cost, simple in operation, and can convert chemical energy of the pollutants in the wastewater into electric energy to compensate for the water treatment cost.

The invention discloses a novel carbon-encapsulated iron particle confinement catalytic biological battery cathode and a preparation method thereof.The preparation method comprises the steps that firstly, an ethanol dispersion solution of ZIF-8 and a K3 [Fe (CN) 6] solution are stirred, a ligand exchange reaction is conducted, a ZIF-8 (at) ZnFePBA precursor is generated after centrifugal washing and drying are conducted, then the ZIF-8 (at) ZnFePBA precursor is calcined in the inert atmosphere, and a novel carbon-encapsulated iron particle cathode catalyst (Fe / FinCx (at) NC) is obtained. Fe / FinCx (at) NC is doped into activated carbon, the activated carbon, PTFE emulsion and a proper amount of absolute ethyl alcohol are mixed and stirred according to the doping rate, slurry obtained through ultrasonic treatment serves as a catalyst layer, and then the catalyst layer and a stainless steel mesh current collection layer with the back face coated with conductive carbon black are co-pressed to obtain the air cathode. According to the carbon-encapsulated iron particle confinement catalyst disclosed by the invention, the output power of the activated carbon air cathode biological battery is remarkably improved by 134.5%, the output maximum power density is 2251 + / -43mW.m <-2 >, and the commercial application prospect of the activated carbon air cathode biological battery is very wide.

The application relates to a scale-preventing treatment method of a cation exchange membrane for preparing rare earth hydroxide by electrolysis, which comprises the following steps: arranging a cathode liquid, an anode liquid, a material liquid A and a material liquid B, and separating an electrolytic cell into a cathode chamber and an anode chamber by using a cation exchange membrane; adopting an inert electrode as the anode and an air cathode as the cathode; injecting electrolyte into the electrolytic cell to start electrolysis, and generating H2O2 by performing oxygen reduction reaction in the cathode chamber; adding the material liquid A into the cathode chamber, and performing polycarboxylic acid modification on the surface of the cation exchange membrane opposite to the cathode; turning the cation exchange membrane opposite to the anode to face the cathode, and performing polycarboxylic acid modification on the surface of the cation exchange membrane by using the same electrolysis process; and applying the cation exchange membrane with the surfaces both completed with polycarboxylic acid modification to membrane electrolysis for preparing rare earth hydroxide, and adding the material liquid B into the anode liquid, so that the scale phenomenon on the surface of the cation exchange membrane in the electrolysis process can be prevented.

This invention discloses a hollow carbon nanosphere electrocatalyst supported by a double-thin-layer polyphthalocyanine, its preparation method, and its application, belonging to the field of electrocatalytic materials technology. The electrocatalyst comprises hollow carbon spheres and metal polyphthalocyanine nanosheets supported on the inner and outer walls of the hollow carbon spheres; the metal polyphthalocyanine nanosheets are prepared by electrolysis of a metal polyphthalocyanine compound; wherein the metal elements in the metal polyphthalocyanine nanosheets supported on the inner and outer walls are different. This invention employs an effective stepwise self-assembly strategy, ensuring that the catalytic sites of the metal elements with ORR and OER activities are uniformly distributed on each side of the hollow carbon nanosphere shell, balancing the competition between the rate-limiting steps of ORR and OER. As an air cathode for a rechargeable zinc-air battery, it achieves excellent energy efficiency and cycle stability.

The invention discloses a solid oxide fuel combustion device and equipment suitable for multiple working conditions, and relates to the technical field of fuel cells, the solid oxide fuel combustion device suitable for multiple working conditions comprises: a shell provided with an inlet, an outlet and a tail gas inlet, the tail gas inlet is connected with a solid oxide fuel cell and is used for receiving cathode tail gas of the solid oxide fuel cell; the first sleeve is arranged at the inlet, part of the first sleeve is arranged in the shell, and the first sleeve is used for introducing fuel and air into the shell; the second sleeve is arranged at the inlet and sleeves the first sleeve, the second sleeve is partially arranged in the shell, and the second sleeve is connected with the solid oxide fuel cell and is used for receiving anode tail gas of the solid oxide fuel cell; the air diffuser assembly is used for mixing fuel, air, the cathode tail gas and the anode tail gas to form mixed gas; and an ignition assembly. The solid oxide fuel combustion device and equipment suitable for the multiple working conditions can adapt to the multiple working conditions, and the performance of a combustor is improved.

An electrolysis cell 21 includes: a solid electrolyte layer 211; a fuel electrode layer 213 stacked and arranged on the rear surface 211A side of the solid electrolyte layer 211; and an air electrode layer 212 stacked and arranged on the front surface 211B side of the solid electrolyte layer 211. A mutual diffusion layer 214 in contact with both the solid electrolyte layer 211 and the fuel electrode layer 213 is formed between the solid electrolyte layer 211 and the fuel electrode layer 213. The mutual diffusion layer 214 includes: a first element which is one element constituting the solid electrolyte layer 211; and a second element which is one element constituting the fuel electrode layer 213 and is different from the first element. The thickness T1 of the mutual diffusion layer 214 falls within the range of 1.5 μm or more and 4.8 μm or less.

The invention discloses an aluminum air battery electrolyte as well as a preparation method and application thereof, and belongs to the technical field of aluminum air batteries. The electrolyte comprises potassium citrate, lecithin, zinc oxide and fatty alcohol which serve as corrosion inhibitors, the hydrogen evolution rate of an aluminum anode can be remarkably reduced, the utilization rate of the anode is increased, the aluminum anode has good corrosion resistance and high electrochemical activity, and the performance of aluminum air is greatly improved. When the electrolyte is used for the aluminum air battery, the problem that the alkaline aluminum air battery is too fast in hydrogen evolution corrosion can be controlled, the aluminum anode alloy and the air cathode can be ensured to have relatively high electrochemical activity, and the electrolyte is of great significance in improving the battery performance and prolonging the discharge life; the preparation method is simple and easy to implement and low in cost; in conclusion, through the innovative design of the composite corrosion inhibitor, excellent effects of inhibiting corrosion, maintaining electrochemical activity and reducing cost are achieved, and the composite corrosion inhibitor has important application value in the technical field of aluminum air batteries.