73 results about "Aluminum anode" patented technology

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.

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 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.

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 application provides an inert anode and a preparation method and application thereof, and belongs to the technical field of electrolytic aluminum anode materials. The anode substrate is pretreated and then coated, dried and solidified in a polytetrafluoroethylene dispersion liquid to obtain the inert anode. The tungsten anode is surface-modified, the excellent corrosion resistance and electrochemical stability are maintained, the bubble dynamic behavior is significantly optimized, and the efficient separation of chlorine bubbles and the synchronous improvement of current efficiency are realized in the process of low-temperature electrolytic aluminum in ionic liquids.

The application provides a high-temperature-resistant and high-conductivity steel for electrolytic aluminum anode steel claws and a preparation method, and relates to the technical field of steel materials for electrolytic aluminum industry production. The application adds trace alloy elements, controls alloy elements and their proportions, and combines corresponding preparation processes to control the amounts of solid solution and precipitation, so that a new type of high-conductivity steel for electrolytic aluminum anode steel claws with room temperature and high-temperature performance is obtained. The application prepares the high-temperature-resistant and high-conductivity steel for electrolytic aluminum anode steel claws by adjusting and controlling the (Ti+Mo) / C ratio, adding Cu elements, selecting low-cost raw materials, carrying out heat soaking treatment before hot rolling, and controlling the rolling reduction stage during the hot rolling process. The method is simple and easy to operate, green and environmentally friendly, low in cost, short in process, high in efficiency, wide in application range, and beneficial to industrial large-scale production and popularization.

The invention discloses an integrally-formed carbon-free special-shaped foamed aluminum electrolytic capacitor anode and a preparation method thereof, and belongs to the technical field of electrolytic capacitor electrode materials. Spherical atomized pure aluminum powder is used as a base body and matched with a carbon-free pore forming agent and a carbon-free inorganic binder, a mold matched with a cavity is customized according to the installation space of target equipment, and the integrated special-shaped open-cell foamed aluminum anode with the solid welding area is prepared through layered powder laying and cold pressing forming, low-temperature curing and synchronous pore forming at the temperature of 180-250 DEG C, aftertreatment and global anodic oxidation. No carbon source is introduced in the whole process, aluminum carbide is prevented from being generated from the source, and the problems of capacitor swelling and internal resistance soaring pain points caused by carbon residues in the prior art are solved; excessive oxidation of the aluminum powder is avoided through low-temperature curing, integral forming is achieved without splicing, the device can adapt to any special-shaped installation space, and the space utilization rate is increased by 3-10 times; the effective specific surface area of the prepared anode reaches 500-800 times and is far better than that of a traditional corrosion aluminum foil, and the customized application requirement of a liquid / solid electrolytic capacitor is perfectly met.

The invention discloses a multi-suspension-point anode clamp, relates to the technical field of electrolytic aluminum production auxiliary equipment, and aims to solve the problems of fixed clamping points, non-adjustable spacing and lack of buffer protection in the prior art. The technical scheme is that the multi-suspension-point anode clamp comprises a clamp frame, an adjusting unit and a clamping unit, the clamp frame is provided with the clamping unit through a mounting hole site, and the adjusting unit is arranged on the clamp frame; the clamp frame is provided with a plurality of groups of mounting hole sites, the clamp frame is further provided with adjusting units, the adjusting units correspond to the clamping units, and the distance between every two adjacent clamping units is adjusted to adapt to various working conditions; the clamping unit comprises a mounting plate, a clamping part and a driving part, the mounting plate corresponds to the mounting hole position in position and is connected with the adjusting unit, the driving part and the clamping part are mounted on the upper side and the lower side of the mounting plate respectively, the clamping part is driven by the driving part, a clamping plate is mounted at the bottom end of the clamping part, and the clamping plate is used for clamping the electrolytic aluminum anode; and a plurality of groups of mounting hole positions are formed in the clamp frame to mount the clamping units, so that a plurality of electrolytic aluminum anodes can be synchronously clamped, and the transfer efficiency is improved.

The invention discloses a calcium aluminate carbon composite material and application thereof.The preparation method of the composite material comprises the steps that aluminum oxide and calcium carbonate serve as raw materials, calcium aluminate ceramic powder is synthesized through a high-temperature solid-phase reaction, then the calcium aluminate ceramic powder, a carbon material and a binder are mixed and kneaded, and then compression molding is conducted; and calcining in a vacuum, inert or reducing atmosphere to obtain the high-conductivity compact composite material. When the composite material is used as an industrial conductive material such as an electrolytic aluminum anode, the consumption of a carbon material can be reduced, the carbon emission is reduced, and the resistivity and the material cost of a traditional electrolytic aluminum carbon anode can also be reduced.

The utility model provides a residual anode pressure-disengaging machine, which relates to the field of electrolytic aluminum anode carbon block recovery processing, and comprises a first pressing arm, a second pressing arm, a limiting baffle and a machine body, the first pressing arm and the second pressing arm are used for rotating mutually so that the first pressing arm and the second pressing arm can make extrusion contact with the two end faces, in the thickness direction, of the anode scrap carbon block correspondingly, and the limiting baffle is arranged on the machine body and used for making limiting contact with the side, away from the hinge point of the first pressing arm and the second pressing arm, of the anode scrap carbon block. The limiting baffle is in limiting contact with the side, far away from the hinge point of the first pressing arm and the second pressing arm, of the anode scrap carbon block, so that the anode scrap carbon block does not move in the direction far away from the hinge point of the first pressing arm and the second pressing arm in the clamping and extruding process, namely, the anode scrap carbon block does not sideslip, it is ensured that the anode scrap carbon block is completely pressed and removed, and the service life of the anode scrap carbon block is prolonged. The subsequent manual clearing process is omitted, and the pressure stripping efficiency is improved.

The invention discloses a composite spraying material for an electrolytic aluminum anode and a preparation method of the composite spraying material, and relates to the technical field of electrolytic aluminum metallurgy new materials, and the composite spraying material comprises the following components in percentage by weight: 42%-45% of aluminum-based high-entropy oxide, 18%-22% of a structure enhancer, 5%-8% of a composite glazing agent, 3%-5% of a film forming regulator, 1%-3% of a bonding system and the balance of deionized water, the aluminum-based high-entropy oxide is prepared from aluminum, iron, magnesium, copper and nickel according to the molar ratio of 0.62: 0.14: 0.04: 0.09: 0.07 through mechanical alloying and self-propagating high-temperature synthesis. The protection performance and the purity of molten aluminum are guaranteed, and the component design is more reasonable. The aluminum-based high-entropy oxide is subjected to accurate molar ratio regulation and control and matched with a structure enhancer to form a compact protection framework, the oxidation resistance is improved by 40% or above compared with a traditional aluminum oxide coating, erosion of oxygen, hydrogen fluoride and cryolite slag at the temperature of 950-1000 DEG C can be effectively resisted, core components are compatible with electrolytic raw materials, no impurity element is introduced, and the service life of the electrolytic coating is prolonged. And even if a small amount of coating falls off, molten aluminum cannot be polluted, and the quality of electrolytic products is guaranteed.

The present disclosure relates to the field of electrolytic aluminum anode material, and particularly discloses an inert anode material, a preparation method and use thereof. The preparation method of the inert anode material comprises the following steps: S1, mixing metal oxide powder for the first time, and then performing solid phase synthesis to obtain ceramic phase raw materials; S2, mixing the ceramic phase raw materials, metal phase raw materials and a binder for the second time, and then performing compression molding to obtain a green body; S3, the green body is sequentially subjected to sintering and pre-oxidation treatment to obtain the inert anode material. The inert anode material is prepared by the preparation method. The inert anode material is used in electrolytic aluminum. The inert anode material provided by the present disclosure has good corrosion resistance, high temperature mechanical properties and electrical conductivity.

The invention relates to the technical field of oxidation coating detection, and particularly discloses a surface quality detection method based on aluminum anodic oxidation dyestuff, which comprises the following steps: acquiring an image of an aluminum anodic oxidation dyeing surface to obtain an input image; pixel value distribution corresponding to the brightness degree is extracted from the input image, and the brightness intensity mean value and variance of each group are determined; calculating a uniformity index of each group to obtain a non-uniform region group set; sub-images are extracted according to the non-uniform region group set, and the compactness characterization value of the oxide film is determined; carrying out fusion analysis on the compactness characterization value and the uniformity index of the oxide film to obtain a surface defect type; performing statistical analysis on the positions of the high-risk groups in the input image to obtain position distribution characteristics; and generating an adjustment instruction set for adjusting the oxidation process parameters according to the position distribution characteristics. According to the surface quality detection method based on the aluminum anodic oxidation dye, the problem that the stability of product quality is difficult to guarantee in the current oxidation coating detection is solved.

This utility model provides a screw-type brine chiller unit, including a bottom leak detection mechanism, a condenser, an evaporator, an oil separator, a screw compressor, a control console, a self-repairing mechanism, a throttle valve, and an aluminum anode block. The condenser is located above the bottom leak detection mechanism, and the oil separator is located above the condenser. This design solves the problems of existing devices where brine accelerates the corrosion of the chiller unit during use, leading to a reduction in the lifespan of the chiller unit and compressor, and the inability to promptly warn and stop the unit when leaks occur. This utility model has a reasonable structure. Through the cooperation of the bottom leak detection mechanism, the self-repairing mechanism, and the aluminum anode block, it can automatically repair damage to the internal paint of the pipes, effectively reducing labor costs. At the same time, it can promptly notify personnel when leaks occur, preventing overall damage to the chiller unit and effectively improving the corrosion resistance of the chiller unit.

The invention relates to the field of metal product manufacturing, in particular to a preparation method of a gradient composite aluminum anode oxide film and an aluminum product, and the method comprises the following steps that an aluminum substrate is placed in an electrolyte to be subjected to staged anodic oxidation treatment which comprises the following steps that in the first stage, anodic oxidation is conducted under the condition that no nanometer functional material is added; in the second stage, anodic oxidation is carried out in an electrolyte containing a nanometer functional material; and in the anodic oxidation treatment process of the second stage, the concentration change of the nano functional material in the electrolyte is controlled, so that the content of the nano functional material in the oxidation film is in gradient distribution in the thickness direction of the film layer. According to the invention, through staged oxidation and dynamic concentration control, synergistic enhancement of film performance is realized, a compact structure taking pure alumina as a main component is formed in an inner layer close to a matrix, excellent adhesion and toughness are ensured, a nano functional material is enriched on a surface layer, and functionality of surface hardness or self-lubrication and the like is significantly improved.

The invention relates to a method for preparing nano aluminum oxide from fly ash and application of the nano aluminum oxide. According to the method, fly ash is taken as a raw material, an ammonium sulfate-assisted nitrogen protection roasting process is adopted, and aluminosilicate in the fly ash is decomposed step by step at low temperature, so that efficient activation of an aluminum element is realized. And then a hydrothermal method is adopted, and the dynamic crystallization process of a reaction system is regulated and controlled, so that the high-activity nano aluminum oxide powder is prepared. Aiming at the problem of oxidation failure of an electrolytic aluminum anode under a high-temperature working condition, a transition layer taking nano aluminum oxide as a matrix is constructed on the inner layer through a material compounding technology, rare earth lanthanum oxide is introduced as a stabilizer, and the thermal stability and the interface bonding strength of the coating are enhanced by utilizing a synergistic effect; layered nanometer materials are introduced into the outer layer through an advanced composite technology, and a compact physical barrier structure is formed. The process is simple and efficient, the raw material adaptability is high, a new way is provided for high-value utilization of the fly ash, and an innovative solution is provided for energy conservation, emission reduction and anode material upgrading in the electrolytic aluminum industry.

This invention discloses a high-temperature resistant and antioxidant coating for electrolytic aluminum anodes and its preparation process, relating to the field of electrolytic aluminum coating technology. The coating comprises the following components by mass percentage: 40%-50% main aggregate phase, 20%-30% composite binder, 3%-8% functional additives, 2%-5% stabilizing and reinforcing phase, and 8%-12% solvent film-forming phase. The composite binder contains the reaction product of alkali metal silicates and organic modifiers. This invention utilizes the hydrogen bonding reaction between alkali metal silicates and organic modifiers to form an anti-aging, high-toughness modified binder matrix, significantly improving the room-temperature curing stability and high-temperature service life of the coating, solving the technical problem of easy aging and cracking in traditional water glass-based coatings. A homogenization process employing synergistic anchoring of functional additives and stabilizing and reinforcing phases constructs a dual protection mechanism in the coating: rare-earth catalytic oxidation inhibition and whisker bridging crack prevention. This achieves long-term dense protection of the coating under high-temperature oxidizing atmospheres without introducing harmful impurities that contaminate the electrolyte.

The utility model discloses an electrolytic aluminum anode ladle unhooking device which comprises a long rod, a handle is arranged at the lower end of the long rod, a heat insulation plate is arranged between the handle and the long rod, and a fork is arranged at the upper end of the long rod. By means of the technical scheme, the hook can be easily detached by using a fork to abut against the hook, operation can be achieved at a long distance by holding the handle, danger is greatly reduced, the heat insulation plate can isolate certain heat radiation, hand scalding is further prevented, the fork can be rotated to adjust different angles, and the fork is convenient to use. The torsion spring is arranged to keep the fork at a fixed angle, the angle of the fork is changed through the first connecting rod and the second connecting rod, and the push plate and the arc-shaped groove are arranged to be more suitable for one-hand operation.

The invention discloses a cryolite recovery method which comprises the following steps: step 1, mixing and molding electrolytic aluminum anode waste and a solid decomposer, and reacting under a heating condition to obtain fluorine-containing mixed gas and a defluorinated material; 2, cooling the fluorine-containing mixed gas to obtain ammonium fluoride crystals, and adding water into the ammonium fluoride crystals to dissolve the ammonium fluoride crystals to obtain an ammonium fluoride solution; 3, the defluorinated material obtained in the step 1 is leached with water, and leaching liquid containing sodium salt and aluminum salt and carbon residues are obtained after liquid-solid separation; and step 4, mixing the ammonium fluoride solution obtained in the step 2 and the leachate obtained in the step 3, then carrying out reactive crystallization, and carrying out liquid-solid separation to obtain cryolite and a decomposer solution. The cryolite prepared by the method is adjustable in property, the decomposing agent can be recycled, the process is simple, and the conditions are mild.

The invention relates to an annealed pre-lithiated aluminum anode active material layer with high grain boundary distribution. A method for manufacturing an anode electrode includes rolling a first aluminum foil layer; annealing the first aluminum foil layer to form 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 pre-lithiate the first annealed aluminum foil layer.

The utility model discloses an electrolytic aluminum anode falling fishing device which is characterized in that each of two shear fork structures of a clamping mechanism comprises a left upper shear fork plate, a right upper shear fork plate, a left lower clamping plate and a right lower clamping plate, the left upper shear fork plate is connected with the right upper shear fork plate, and the left upper shear fork plate and the right upper shear fork plate are respectively connected with the left lower clamping plate and the right lower clamping plate; the free ends of the left lower clamping plates and the right lower clamping plates are bent, the left lower clamping plates and the right lower clamping plates are connected in a crossed mode, double-end connecting rods are arranged at the crossed connection positions, a clamping plate I is arranged between the two left lower clamping plates, a clamping plate II is arranged between the two right lower clamping plates, and hooks are arranged on the double-end connecting rods of the left upper shear fork plate and the right upper shear fork plate in a sleeved mode. When the shear fork structure is pulled upwards, the shear fork structure is narrowed, so that the distance between the clamping plate I and the clamping plate II is reduced, the anode carbon block is clamped, the clamping stability is improved, the fishing of the carbon block is completed, and the carbon block is prevented from falling off.

The invention discloses a medium-frequency heating furnace for preheating an electrolytic aluminum anode, which relates to the technical field of electrolytic aluminum anode heating, comprises a medium-frequency heating furnace body, and is characterized in that the medium-frequency heating furnace is provided with a fixing frame fixedly mounted on the outer wall of the medium-frequency heating furnace body; the sealing plate is rotationally mounted on the inner wall of the fixing frame, and the sealing plate is driven by a motor; the protective shell is fixedly mounted on the inner wall of the medium-frequency heating furnace body; the heating ring is arranged in the protective shell; a driving motor is fixedly installed at the bottom of the intermediate frequency heating furnace body, a reciprocating lead screw is fixedly installed at the output end of the driving motor, a supporting plate is fixedly installed at the top of the reciprocating lead screw, and the heating tank rotates in the intermediate frequency heating furnace body, so that it can be ensured that each part of an anode can make uniform contact with a heat source in the furnace; and the temperature difference caused by heating at a fixed position is avoided.

The utility model belongs to the energy -conserving and carbon -reducing electrolytic aluminium anode technical field, especially relates to a current -sharing composite electrolytic aluminium anode structure, and anode structure includes aluminium alloy guide rod, is located aluminium alloy guide rod bottom and its fixed connection's section is the composite transition structure of convex, and the composite transition structure is fixedly connected with carbon top through the graphene / copper composite expansion connecting column of its bottom, the utility model discloses the addition of graphene / copper composite board has reduced the interface resistance between expansion connecting structure and carbon, and when anode is installed on electrolytic cell, anode overall temperature rises, graphene / copper composite expansion connecting structure is heated, produces the thermal expansion outward, and the contact resistance with carbon is also smaller.

The utility model belongs to the technical field of blue-green algae treatment, and particularly relates to a blue-green algae treatment device which comprises a bearing frame and a treatment box installed on the left side of the top of the bearing frame, a water inlet pipe is fixedly installed on the right side of the top of the treatment box, and a treatment device is arranged in the bearing frame and comprises an electrolysis mechanism and a compaction mechanism. The electrolysis mechanism comprises a motor, a rotating shaft, a periodic programming direction changing device, a direct-current power box, a conductive connecting column, a mounting frame and an aluminum electrode plate. According to the blue-green algae treatment device, the cell structure of blue-green algae is destroyed by using aluminum oxide and other active substances generated in the electrolysis process of the aluminum electrode plate, so that the effect of removing the blue-green algae is achieved, when the aluminum electrode plate is in the electrolysis process, the aluminum anode is oxidized and releases aluminum ions, and the aluminum ions react with hydroxyl ions in water, so that the blue-green algae is removed. Aluminum hydroxide precipitates are formed, so that blue-green algae in water is adsorbed and removed.

The invention relates to a battery cell with large grain boundaries and pre-lithiated aluminum anode electrodes. 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 disposed on one side of the annealed aluminum foil layer.

The invention belongs to the technical field of energy-saving and carbon-reducing electrolytic aluminum anodes, and particularly relates to a current-sharing composite electrolytic aluminum anode structure and a preparation method thereof.The anode structure comprises an aluminum alloy guide rod and a composite transition structure located at the bottom of the aluminum alloy guide rod and fixedly connected with the aluminum alloy guide rod, the composite transition structure is fixedly connected with the upper part of the carbon through a graphene / copper composite expansion connecting column at the bottom of the composite transition structure; by adding the graphene / copper composite material, the interface resistance between the expansion connection structure and the carbon is reduced, and when the anode is mounted on an electrolytic bath, the overall temperature of the anode rises, the graphene / copper composite expansion connection structure is heated, outward thermal expansion is generated, and the contact resistance with the carbon is smaller.

The invention relates to the technical field of corrosion protection of ocean engineering structures, in particular to a coated high-rare-earth anti-corrosion and anti-fouling aluminum anode film suitable for an offshore steel pile structure and application of the coated high-rare-earth anti-corrosion and anti-fouling aluminum anode film. The coating type high-rare-earth anti-corrosion and anti-fouling aluminum anode thin film is formed by extruding a high-rare-earth ternary Al-RE-In alloy; wherein RE is one or more of rare earth elements, and the rare earth elements account for 8%-12% of the total mass of the aluminum anode thin film; and indium In accounts for 0.3%-0.8% of the total mass content. According to the thin film, the alloy is endowed with excellent electrochemical activity and processing toughness, and rare earth ions continuously dissolved out of the thin film form an antifouling microenvironment around a steel pile. According to the invention, nearly 100% utilization efficiency of the anode is realized, lossless and convenient replacement is supported, the problems of thermal damage and advanced failure caused by traditional welding are avoided, and the method is particularly suitable for full-life-cycle protection of steel structures such as offshore wind power foundations and ocean platforms.