238 results about "Aluminum anode" patented technology

The invention relates to the technical field of chemical raw material processing, and discloses a petroleum coke particle size grading and batching system which comprises a raw material pretreatment module, a multi-stage dynamic screening module, a particle size real-time monitoring module, an intelligent batching decision module and a closed-loop control execution module. The classification definiteness of materials with different particle sizes is ensured; meanwhile, through a particle size monitoring feedback mechanism, the particle size distribution abnormal state in the screening process is recognized in real time, the material purity within the target particle size range is guaranteed, the particle size grading accuracy is improved, a closed-loop matching decision module is arranged, particle matching weight parameters are dynamically optimized in combination with the electrolytic aluminum process requirement, and the particle size grading accuracy is improved. The deviation degree between the ingredient proportion and the target performance can be judged in real time; the speed ratio of the conveying belt and the opening degree of the stock bin are automatically corrected through the executing mechanism, it is guaranteed that the mixing proportion of coarse particles, medium particles and fine particles is always in the optimal interval matched with electrolytic aluminum anode production, and the quality stability of anode carbon blocks is improved.

The invention provides a high-conductivity high-temperature anti-oxidation life-prolonging coating for an electrolytic aluminum anode, which is prepared from the following raw materials in parts by weight: 34-50 parts of refined bauxite; 20 to 25 parts of water; 20 to 30 parts of silicon carbide; 1.5 to 3 parts of graphene; 4-6 parts of a glaze forming agent; 2.1 to 2.2 parts of a film forming agent; 0.3 to 0.4 part of a modifier; the glaze forming agent is composed of albite, talc and lanthanide oxide. The invention also provides a preparation method of the coating. The coating prepared by the invention is coated on the surfaces of a carbon block and an anode steel claw, the mechanical property and the conductivity of the coating can be improved by adding silicon carbide and graphite, cracks between the coating and the carbon block as well as between the coating and the steel claw can be made up by adding the glazing agent, and the adhesiveness, the thermal stability and the fracture toughness are improved. The coating provided by the invention can reduce the anode loss, improve the conductivity and reduce the production energy consumption and cost of electrolytic aluminum to a certain extent, and has popularization and application prospects.

The invention provides steel for a high-temperature-resistant and high-conductivity electrolytic aluminum anode steel claw and a preparation method, and relates to the technical field of steel materials for production in the electrolytic aluminum industry. Trace alloy elements are added, the alloy elements and the proportion of the alloy elements are controlled, a corresponding preparation technology is combined, the solid solution and precipitation amount is controlled, and the novel steel for the electrolytic aluminum anode steel claw with the room-temperature performance, the high-temperature performance and the high conductivity is obtained. The high-temperature-resistant and high-conductivity steel for the electrolytic aluminum anode steel claw is prepared by regulating and controlling the (Ti + Mo) / C ratio, adding the Cu element, selecting low-cost raw materials, carrying out soaking section heat preservation treatment before hot rolling and carrying out rolling reduction stage control in the hot rolling process; the method is simple and easy to operate, environmentally friendly, low in cost, short in process, high in efficiency, wide in application range and beneficial to industrial large-scale production and popularization.

A method for manufacturing an anode electrode includes rolling a first aluminum foil layer; annealing the first aluminum foil layer to create a first annealed aluminum foil layer; mechanically bonding a first lithium metal foil layer between an anode current collector and the first annealed aluminum foil layer; and aging the anode electrode to prelithiate the first annealed aluminum foil layer.

The invention relates to the technical field of aluminum anode machining, and discloses heating equipment for oil well casing aluminum anode machining, which comprises a bottom frame and further comprises two chucks which are mounted on the bottom frame and can rotate, and the two chucks are coaxially arranged and can be adjusted close to or away from each other so as to clamp an aluminum anode tube; the clamp structure is mounted on the opposite surface of the chuck and can center and fix the aluminum anode tube in an inner supporting or outer clamping manner, and a closed space is formed in the aluminum anode tube after the clamp structure is fixed; the heating part extends into the aluminum anode tube and is used for heating air in the aluminum anode tube and heating the aluminum anode tube in a heat conduction and heat convection manner; and the pressure control assembly can be used for pumping out or filling air in the aluminum anode tube. By switching between low voltage and high voltage in the aluminum anode tube, the aluminum anode tube can correspond to heating states in different time periods, so that the quality of a coating in the aluminum anode tube is improved, and the service life of the aluminum anode tube in a severe environment is prolonged.

A process and system for recovering electrolyte and carbon powder from electrolytic aluminum anode carbon residues are characterized in that the electrolytic aluminum anode carbon residues are crushed, dried, ground and sieved, fine powder is sent to a cyclone combustion furnace for combustion, the electrolyte in the carbon residues is molten and then enters an electrolyte melting pool, and the surface of the electrolyte melting pool can be subjected to residue stirring; the bottom of the molten pool is poured with a high-temperature-resistant material and is provided with multiple holes, the molten electrolyte flows out of the holes and enters a rotary jet granulation device, the molten electrolyte is cut into frits with small particle sizes under the gas cutting action of rotary jet, meanwhile, the molten electrolyte is cooled by airflow, and the molten electrolyte is separated from the molten pool; the small frits are further cooled, so that the surfaces of the small frits are completely solidified, the small frits are discharged through a discharge port, and flue gas generated by combustion enters a tail flue, exchanges heat with a heat exchanger, enters a dust remover system for dust removal, then enters an alkali liquor spray tower and a denitration device, and is finally emptied; according to the method, the electrolytic aluminum carbon residues are subjected to resource recycling, and the electrolyte utilization rate is increased.

A battery cell includes C cathode electrodes, A anode electrodes, and S separators, where A, C, and S are integers. Each of the A anode electrodes includes an annealed aluminum foil layer and a lithium aluminum layer arranged on one side of the annealed aluminum foil layer.

The invention belongs to the technical field of petroleum coke production, and particularly relates to a production process of petroleum coke for an aluminum smelting anode, which comprises the following steps: a raw material intelligent analysis stage: performing deep analysis on key impurity elements such as sulfur, calcium, sodium, vanadium and the like on green petroleum coke from various sources by adopting an advanced artificial intelligence algorithm in combination with a high-precision spectral analysis technology to obtain a crude petroleum coke sample; accurate identification and classification of raw material components are realized; and a dynamic ratio optimization stage: based on the raw material analysis result, dynamically adjusting the petroleum coke mixing ratio by using a machine learning model, and by introducing an advanced artificial intelligence algorithm, a high-precision spectrum analysis technology and the machine learning model, accurate identification and dynamic ratio optimization of raw material components are realized. Therefore, the utilization rate of the raw materials is remarkably improved, and accurate control of the content of key impurity elements in the mixed dry material is ensured, so that the comprehensive performance of the anode material is improved.

The application discloses a preparation method of notebook computer shell added with recycled aluminum anodized aluminum strip, and specifically comprises the following steps: raw materials such as recycled aluminum, aluminum ingot and intermediate alloy ingot are subjected to smelting, casting, hot rolling, cold rolling, intermediate annealing, roughening cold rolling and cleaning and straightening to obtain a notebook computer shell added with recycled aluminum 5000 series aluminum plate strip. The average grain size of the aluminum alloy strip is less than 10 microns, the grain aspect ratio is 0.9-1.1, the maximum size of intermetallic compounds is less than 5 microns, the compound proportion difference in unit area is less than 1%, the sand blasting sand type on the surface of the aluminum material is 120-150# iron sand, the roughness Ra after sand blasting is 1.8+ / -0.3 microns, and the anodized surface is fine and free of material lines.

The invention discloses an aluminum anode carbon flue gas carbon capture system and method. The system comprises a photovoltaic-steam turbine combined power generation device, a flue gas treatment device and a carbon capture device, the flue gas treatment device comprises an ammonia storage tank, a urea storage tank, a calcining furnace, a roasting furnace, an electrical tar precipitator, a heat exchanger, a catalytic reactor, a desulfurizing tower, a CO catalytic bed layer and a wet dust collector; and the carbon capture device comprises a second waste heat boiler, a reaction tower, a second condenser, a compressor and a carbon storage tank. According to the invention, photovoltaic-steam turbine combined power generation is utilized, so that gradient utilization and low-carbon emission of energy are realized, and the comprehensive energy consumption ratio of the carbon capture system is effectively reduced; according to the invention, the carbon dioxide is used as a raw material, the electrical tar precipitator, the catalytic reactor, the desulfurization tower and other devices are introduced, the separation purity and recovery rate of the carbon dioxide are obviously improved, and the gas driving force is effectively enhanced by adopting a steam purging method, so that the desorption process of the carbon dioxide is accelerated and the desorption efficiency is improved.

The invention belongs to the technical field of waste aluminum recovery, and particularly relates to an electrolytic cell for override recovery of pure aluminum from scrap aluminum and a use method of the electrolytic cell. The electrolytic cell comprises a scrap aluminum inlet cover plate, a scrap aluminum anode, a porous ceramic plate, a pure aluminum inlet and outlet cover plate, an electrolyte, an electrolytic cell cover plate, an electrolytic cell shell, a pure aluminum cathode, an electrolytic cell heat preservation layer, an electrolytic cell insulation layer, a cathode guide rod, a cathode graphite block, an insulation partition plate, an anode graphite block and an anode guide rod. Current enters the liquid scrap aluminum anode through the anode guide rod and the anode graphite block, then enters the liquid pure aluminum cathode through the molten electrolyte immersed in the scrap aluminum anode, the porous ceramic plate and the molten electrolyte in the cathode chamber in sequence, and finally is led out through the cathode graphite block and the cathode guide rod; in the electrolysis process, aluminum in the scrap aluminum anode is subjected to electrochemical dissolution, enters the molten electrolyte in the form of aluminum ions and moves to the liquid pure aluminum cathode through the molten electrolyte to be separated out.

The invention discloses an aluminum anodic oxidation electrolyte for improving the adhesion density of an electrode foil oxidation film, and relates to the technical field of anodic oxidation, the electrolyte comprises 3%-10% of ammonium dihydrogen phosphate, 0.5%-3% of sulfuric acid, 0.01%-0.2% of nano titanium dioxide or nano aluminum oxide, 0.05%-0.5% of an organic buffer agent, and the balance deionized water; the organic buffering agent is used for stabilizing the pH value in a range of 4.5-6.0; nano titanium dioxide or nano aluminum oxide is used as an oxidation film nucleation center to promote directional crystallization of gamma '-Al2O3; the sulfuric acid component improves the conductivity of the electrolyte; ammonium dihydrogen phosphate generates an aluminum phosphate barrier layer on the surface layer of the oxidation film to enhance the waterproof performance of the film layer; according to the electrolyte, the adhesion density and crystallinity of an oxidation film can be remarkably improved, the uniformity and waterproof performance of a film layer are improved, the specific volume stability and the formation efficiency are improved, and the electrolyte is suitable for continuous production of the high-performance aluminum electrolytic capacitor.

The invention discloses a micro-fine particle flotation method for electrolytic aluminum anode carbon slag after lithium extraction based on ball milling activation and interface regulation and control. The method comprises the following steps that the electrolytic aluminum anode carbon slag after lithium extraction is pretreated to obtain carbon slag lithium extraction slag; carrying out ball milling activation on the carbon residue lithium extraction residue; the activated ore pulp is subjected to flotation pretreatment and flotation separation; the carbon concentrate obtained through flotation is subjected to alkaline leaching impurity removal, high-grade carbon concentrate is obtained, and meanwhile tailings can be directly used as regenerated electrolyte. According to the method, the surface performance of the carbon particles is enhanced through ball milling activation, the flotation recovery efficiency and selectivity are improved, synergistic efficient recovery of the carbon and the electrolyte is achieved, and the method has the advantages of being simple and convenient in process, high in recovery rate, environmentally friendly and the like. The grade of the obtained carbon concentrate can reach 85.65%, and the fluorine grade in the tailings is ensured, so that the carbon concentrate can be directly recycled as electrolyte or further recycled.

The application provides a pr-modified recycled aluminum alkaline air battery anode material and a preparation method thereof, and belongs to the technical field of aluminum alloy materials.The anode material is composed of the following components in percentage by weight: 0.1-2.0% of Zn, 0.01-0.2% of Ga, 0.01-0.3% of Pr, 0.2-2% of Mn, 0.9-2.0% of Fe, and 0.5-2.0% of Si; the balance is Al; the Si and Fe are from recycled aluminum.The application directly uses high-iron recycled aluminum to prepare the pr-Ga-Mn-Si-Zn five-element alloy by reducing the raw material cost by more than 80%; the application avoids the resource waste of the traditional dilution method, realizes the high-value utilization of recycled aluminum, and forms a closed loop of "waste aluminum-anode-corrosion product-aluminum source", thereby avoiding the aluminum circulation imbalance and the secondary aluminum surplus problem caused by the accumulation of alloy elements.

The application belongs to the technical field of intermediate frequency heating furnace, in particular to an intermediate frequency heating furnace for preheating electrolytic aluminum anode, which comprises a heating furnace body for heating anode rods, an electromagnetic coil arranged inside the heating furnace body, an air inlet pipe fixedly connected to one end of the electromagnetic coil, an air outlet pipe fixedly connected to the other end of the electromagnetic coil, a fan arranged on one side of the heating furnace body, an air outlet end of the fan in communication with the air inlet pipe, a second water tank arranged on one side of the heating furnace body, a heat treatment tank fixedly installed on the side wall of the second water tank, a thermoelectric converter arranged inside the heat treatment tank, the air outlet pipe extending through the second water tank to the inside of the heat treatment tank at an end away from the heating furnace body, the air outlet opening facing the heat absorbing end of the thermoelectric converter, and an electromagnetic generator arranged at the top end of the heat treatment tank, with a transmission rod fixedly connected to the rotor of the electromagnetic generator, so that the waste heat source can be effectively converted into electric energy, the energy utilization efficiency is improved, and the production cost is reduced.

The invention relates to a phosphating method and device for a vehicle body, a vehicle and electronic equipment, and relates to the technical field of metal surface treatment.The method comprises the steps that the planned aluminum-steel surface area ratio of the vehicle body is obtained; determining the aluminum anode dissolution rate and the fluorinion consumption rate of the bath solution in the phosphating bath; wherein a vehicle body is placed in the phosphating tank; based on the planned aluminum steel surface area ratio, the aluminum anode dissolution rate and the fluorine ion consumption rate, the steady-state fluorine ion concentration of the bath solution is determined; and regulating and controlling the bath solution based on the steady-state fluorine ion concentration. Therefore, the fluorine ion concentration of the tank liquid in the phosphating tank can be controlled to maintain the expected fluorine ion concentration all the time, so that the phosphating quality of a vehicle body is improved.

The present disclosure relates to non-aqueous aluminum anodizing. A component for an electronic device may include a component including a first metal and a second metal diffusion bonded to the first metal. The first metal may be aluminum, and the second metal may be different from the first metal. A porous alumina layer may overlay a portion of the first metal and may be disposed adjacent an interface between the first metal and the second metal. The component may also include a non-metallic material bonded to the component and extending into pores defined by the porous alumina layer.

The invention belongs to the technical field of aluminum alloy materials, and particularly relates to a colored aluminum anode oxide film and a preparation method thereof. Aluminum is sequentially subjected to electrochemical polishing and anodic oxidation to obtain an aluminum anodic oxide film, then the aluminum anodic oxide film is immersed in an azo precursor solution, and a red azo dye is synthesized in situ in pores of the porous oxide film through an azo reaction between diazonium salt and benzene sulfonate, so that coloring of the aluminum oxide film is completed. By synthesizing sulfonic acid modified alendronate and compounding the sulfonic acid modified alendronate to form the electrochemical polishing solution, the electrochemical polishing quality of the surface of an aluminum sheet can be effectively improved. An electrolyte additive with phosphate groups, carboxyl groups and alcohol amino groups at the same time is used for anodic oxidation, a porous oxidation film with the appropriate pore size is formed, finally, an azo precursor of a specific structure is screened, loading fixation of azo dye on the porous film is further improved by means of sulfonic acid groups on azo molecules, and the stability of the anode is improved. And the aluminum oxide film with a good coloring effect is obtained.

The invention relates to the technical field of electrolytic aluminum production, in particular to an electrolytic aluminum guide rod lifting appliance with a self-locking function, which comprises a supporting body, a mechanical chamber is arranged in the supporting body, a supporting bin is arranged below the mechanical chamber, a limiting mechanism is arranged in the supporting bin, a lifting plate is arranged above the supporting body, and rotating rods which are symmetrically distributed are arranged in the mechanical chamber. The rotating rod is connected with the hanging plate through a rotating mechanism, the rotating mechanism is used for driving the rotating rod to rotate, the rotating rod is connected with a pressing and holding mechanism and a self-locking mechanism, and when the rotating mechanism drives the rotating rod to rotate, the rotating rod presses and holds the electrolytic aluminum guide rod from the top of the electrolytic aluminum guide rod through the pressing and holding mechanism; when the pressing and holding mechanism completes pressing and holding of the electrolytic aluminum guide rod, the self-locking mechanism is used for fixing the rotating rod; when the device is used for hoisting the electrolytic aluminum anode guide rod, the electrolytic aluminum anode guide rod does not need to be fixed manually, so that the manpower is saved, and the hoisting efficiency of the electrolytic aluminum anode guide rod is improved.

The invention relates to an aluminum anode material for an alkaline aluminum air battery, which takes pure aluminum as a raw material, elements Mg and Sr are added, and the weight percentage of the added elements is as follows: 0.15%-0.85% of Mg and 0.02%-0.35% of Sr. The purity of the pure aluminum is greater than or equal to 99.99%. The invention provides a novel aluminum anode formula. The aluminum anode is activated by compositely adding Mg and Sr elements, and recrystallization annealing is assisted, so that the discharge performance, including discharge voltage, utilization rate, energy density and the like, of the aluminum alloy anode can be obviously improved.

The utility model discloses an electrolytic aluminum anode scrap dust-free transfer device which comprises a base, idler wheels and a fixed protective cover, the idler wheels are arranged at the four corners of the bottom of the base respectively, a positioning protective cover is fixedly connected to one side of the top of the base, and a displacement protective cover is connected to the other side of the top of the base in a sliding mode. At least two L-shaped limiting holes are dug in the positioning protective cover, limiting cover plates are arranged in the L-shaped limiting holes, and rectangular placement holes are formed between the front ends of the limiting cover plates and the L-shaped limiting holes. According to the anode scrap transfer device, anode scraps can be transferred in batches, the displacement protective cover and the fixed protective cover are arranged on the base, dust pollution caused by the anode scraps in the transfer process is avoided, the good construction environment of a workshop is guaranteed, the working efficiency is improved, and the anode scrap transfer device is convenient to use and easy to operate.

The invention discloses a high-strength salt spray test resistant die-casting aluminum anode process which is characterized by comprising the following steps: step 1, hanging die-casting aluminum on processing equipment, driving the die-casting aluminum to be soaked in a degreasing agent to remove oil stains, and washing the die-casting aluminum after degreasing; secondly, the degreased die-casting aluminum is soaked in a neutralizing solution, acid and alkali of the die-casting aluminum are neutralized, a leather film of the die-casting aluminum is removed, and the die-casting aluminum is washed with water again; 3, the die-casting aluminum is placed in an anode tank and soaked in the electrolyte, the die-casting aluminum is located at an anode under the action of external stable current or stable voltage, so that an oxidation film is formed, and the die-casting aluminum is washed with water; compared with the prior art, the surface effect of the product subjected to three times of sealing is not different from that of a product produced by a normal common process, a salt spray test can meet the requirement of a continuous neutral salt spray test of 720 H or above, and the requirement of a neutral salt spray test of 960 H or above can be met under the condition that the third time of sealing is increased.

The utility model relates to the technical field of aluminum piece oxidation clamping, in particular to an aluminum piece anodic oxidation fixing clamp which comprises a fixing block, two connecting rods are movably installed at the bottom of the fixing block, clamping rods are movably installed at the bottoms of the connecting rods, the two clamping rods are movably connected, a fixing assembly is installed between the two connecting rods, and the fixing assembly is fixedly connected with the fixing block. Four fixing holes distributed in a rectangular shape are formed in the fixing block, a first movable shaft is fixedly connected to the bottom of the fixing block, a first movable hole corresponding to the first movable shaft is formed in the top of each connecting rod, two connecting rods can be installed on each first movable shaft, and second movable holes are formed in the bottoms of the connecting rods. And the top of the clamping rod is fixedly connected with a second movable shaft corresponding to the second movable hole. According to the aluminum piece clamping device, aluminum pieces of different sizes and different shapes can be firmly clamped and fixed, and meanwhile the aluminum pieces can be prevented from falling off after being used for a long time through fixing of the lead screw.

The present invention provides a method for processing a system-level double-sided fan-out packaging structure using an aluminum substrate, comprising: using an aluminum alloy substrate as a bottom plate; making a double-sided cavity mask on the aluminum alloy substrate and performing a non-penetrating anodization on the substrate; making a structural and functional integrated carrier by selectively penetrating aluminum anodization and the anisotropic etching characteristics of anodized aluminum; mounting chips in the cavity of the structural and functional integrated carrier and wiring on the surface of the carrier; making a redistribution layer on the surface of the carrier; completely encapsulating one side of the carrier with epoxy plastic encapsulant and planting balls on the other side to form a system-level double-sided fan-out packaging structure. The method of the present invention uses an aluminum anodized structural and functional integrated carrier, has the characteristics of simple process flow, low cost, high precision of the anisotropic etching processing cavity, good thermal conductivity, etc., and can improve the precision, density, support strength, heat dissipation capacity and signal transmission integrity of the chip double-sided fan-out packaging.

The invention relates to the technical field of phosphorus pig iron recycling, in particular to a method and system for recycling phosphorus pig iron from an electrolytic aluminum anode set. The method comprises the following steps: sequentially carrying out first magnetic separation and crushing treatment on a phosphorus pig iron ring to obtain a first phosphorus pig iron block with an anode carbon block; the first phosphorus pig iron block with the anode carbon block is sequentially subjected to second magnetic separation and shot blasting treatment, and a second phosphorus pig iron block is obtained; performing third magnetic separation on the second phosphorus pig iron block to obtain a third phosphorus pig iron block; melting the third phosphorus pig iron block to obtain a phosphorus pig iron melt; and the phosphorus pig iron melt is subjected to casting molding, and the phosphorus pig iron ring is obtained. According to the method, through multi-cascade control of interface stripping, magnetic purification and thermodynamic migration, step-by-step removal of the sulfur element is achieved, sulfur is prevented from being enriched in the melting stage of the phosphorus pig iron, the final increase amount of the sulfur content is effectively reduced to be 5% or below, and therefore the enrichment degree of the sulfur element in the phosphorus pig iron can be effectively reduced.

This invention relates to the field of electrochemical technology, specifically to a method for preparing nitrogen-doped carbon quantum dots and their application in aluminum-air batteries. Using L-tryptophan and tannic acid as raw materials, a hydrothermal polymerization reaction is carried out, followed by filtration, dialysis, distillation, and freeze-drying to prepare carbon quantum dots. Different concentrations of carbon quantum dot corrosion inhibitors are added to the alkaline electrolyte of the aluminum-air battery. Electrochemical testing, hydrogen evolution analysis, and surface analysis reveal that this corrosion inhibitor can improve the anode utilization rate, capacity density, and energy density of the aluminum-air battery, while reducing the self-corrosion rate of the aluminum anode, meeting the requirements of metal-air batteries. The preparation process is simple, low-cost, and uses widely available, inexpensive, low-toxicity, and environmentally friendly raw materials, making it widely applicable in practical production.

Provided is a fuel cell system including: a fuel cell; a tank body in which a hydrogen storage alloy that adsorbs and releases hydrogen is housed, and that supplies hydrogen to the fuel cell; and a holding body that houses the tank body detachably. The fuel cell system is configured to heat the tank body using waste heat of the fuel cell. The tank body is formed of aluminum or an aluminum alloy. A first aluminum anodized layer is formed on an outer surface of the tank body.

This invention discloses a formation method for high-voltage anode foil, belonging to the technical field of anode foil for electrolytic capacitors. This formation method uses five to six stages of formation. Boric acid (0.1–10 wt%), tertiary phosphoric acid treatment, and tertiary high-temperature treatment in the formation solution improve the leakage current, loss, lifespan, and high-temperature resistance of the aluminum anode foil. Carboxylic acid treatment and hypophosphite (0.01–0.5 wt%) in the formation solution improve the density and hydration resistance of the oxide film. Hypophosphite and citric acid and citrate (0.01–0.5 wt%) in the formation solution increase the capacity of the aluminum anode foil. At a voltage specification of 650–950 VF, the high-voltage anode foil for aluminum electrolytic capacitors produced using this method exhibits high capacity, high-temperature resistance, and long lifespan, making it suitable for the production of 5G anode foil. The production process is simple to operate, the product has good stability, and it is suitable for industrial mass production.

The invention provides an electrolytic aluminum anode structure based on cold spraying silver-nickel coating threaded steel claw connection. The electrolytic aluminum anode structure comprises a steel claw and an anode carbon block. The two ends of each steel claw tooth are provided with a first external thread and a second external thread correspondingly, and the claw teeth are installed below the cross beam through the first external threads. The anode carbon block is provided with carbon bowls corresponding to the claw teeth in number, and the claw teeth are connected with the carbon bowls through second external threads; and a silver-nickel coating formed by a cold spraying process is arranged on the surface of the second external thread. The invention further provides a manufacturing method of the electrolytic aluminum anode structure. The silver-nickel coating is arranged on the surface of the second external thread at the joint of the claw teeth and the carbon bowl, so that the contact area between the steel claw and the carbon bowl is increased, the conductivity of the thread joint is greatly improved, the iron-carbon voltage drop generated when current passes through is reduced, the electric energy loss in the electrolytic aluminum process is reduced, and the service life of the steel claw is prolonged. The defects of threaded connection in the aspects of stability and conductivity under the severe working condition of electrolytic aluminum are overcome, and wide popularization and application prospects are achieved.

The application belongs to the field of electrochemical detection, and particularly relates to a construction method of a photoelectrochemical self-powered sensor based on aluminum-air battery enhancement and application in detection of microcystin-RR. A CuO film is prepared through electrodeposition annealing conversion, CeO2-Ti3C2 nano composite material is loaded, and MC-RR aptamer is modified on the electrode to prepare a photo-cathode apta / CeO2-Ti3C2 / CuO / FTO. The aluminum anode, single-chamber quartz electrolytic cell and photo-cathode apta / CeO2-Ti3C2 / CuO / FTO are assembled to construct a self-powered sensor, and a relationship between sensor performance and microcystin-RR concentration is established to achieve the purpose of rapid, sensitive and specific detection.