64 results about "Aluminum electrode" patented technology

The utility model discloses a five-axis automatic online sampling device, which belongs to the technical field of electrolytic aluminum electrode carbon block sampling and comprises a control cabinet, a cantilever is arranged at the top of one side of the control cabinet, and a cross beam is arranged on one side of the top of the cantilever; through the sample drilling assembly, the cut-off assembly and the clamping assembly, operation of sample drilling, cut-off, detection of the surface height of a carbon block, clamping of a sample rod and storage of the sample rod can be automatically completed, high automation is achieved, and compared with a traditional manual sampling mode, the sampling time is greatly shortened, the production efficiency is improved, and the production cost is reduced. Meanwhile, workers are liberated from heavy physical labor through automatic operation, only equipment monitoring and simple operation instruction input need to be carried out, workers are prevented from directly making contact with dust and noise sources, the risks that the workers suffer from pneumoconiosis, hearing loss and even deafness are effectively avoided, a healthier working environment is provided for the workers, and the working efficiency is improved. And the cost and risk of enterprises in the aspect of preventing and treating occupational diseases are also reduced.

The utility model discloses a nanosecond pulsed electric field ablation electric shock cup capable of adjusting the distance between electrode plates, which comprises a cup body and an electric shock cup cover, a pair of conductive aluminum electrode plates which are oppositely arranged are arranged at the lower part of the cup body, the electric shock cup cover is arranged on the cup body, the nanosecond pulsed electric field ablation electric shock cup also comprises a movable electrode plate which is adjustably arranged in the cup body, the movable electrode plate comprises an aluminum electrode plate body positioned at the lower part and a polycarbonate plate body positioned at the upper part; a high-voltage-resistant insulating rubber layer is adhered to the right side of the aluminum electrode plate body; the conductive aluminum electrode plate positioned on the left side and the left side of the aluminum electrode plate body are enclosed by a first telescopic insulating rubber sleeve to form a container with an upper opening and a variable space, and the container is used for accommodating a cell suspension; a high-voltage-resistant insulating rubber layer is adhered to the surface of the conductive aluminum electrode plate on the right side; the left side of the aluminum electrode plate body is electrically connected with the conductive aluminum electrode plate located on the right side through a wire.

The invention relates to the technical field of aluminum-air batteries, in particular to an aluminum-air battery stack capable of quickly replacing aluminum plates, which comprises a base, a battery unit and a connector unit arranged above the battery unit, and the battery unit comprises a plurality of monomers arranged in series; the upper end of each single body is provided with an anode female port and a cathode female port with upward openings; each connector unit comprises a connecting plate detachably connected to the top end of the base and a series wire fixed to the connecting plate, the two ends of each series wire are provided with a positive male port and a negative male port with downward openings, and the two ends of each series wire are connected with the negative female port of one single body and the positive female port of the adjacent single body respectively. The cathode male port of the series wire is connected to the cathode female port, and the anode male port is connected to the anode female port; the positive pole male port, the negative pole male port, the positive pole female port and the negative pole female port are all rapid plugging interfaces. According to the invention, the aluminum electrode can be quickly replaced, the uniformity of the electrolyte of the battery unit and the reliability of the stack are effectively improved, and the service life of the battery is ensured.

The preliminary solder forming method is a method for forming preliminary solder on an aluminum electrode formed of aluminum. The preparation solder forming method includes: a disposing step of disposing solder on an aluminum electrode; and a bonding step in which the solder is bonded to the aluminum electrode by melting and solidifying the solder using a laser. In the joining step, the laser light is irradiated such that the energy of the laser light irradiated to the aluminum electrode is greater than the energy of the laser light irradiated to the solder.

The application discloses a thermoelectric pile structure for calibrating a far ultraviolet ultraviolet detector based on MEMS, which comprises a silicon substrate, a support layer, an absorption layer, a thermocouple pair, aluminum wires, aluminum electrodes and a single crystal silicon material structure on the silicon substrate. The double-layer thermocouple stacking structure is adopted to improve the device duty ratio, more thermocouple pairs can be laid in the case of keeping the size of the one-layer structure unchanged, and the response rate of the detector is improved. The circular structure conforms to the distribution trend that the temperature is radially diffused from the center of the absorption layer to the periphery in a decreasing manner, the hot end of the thermocouple pair can be closer to the area with higher temperature, the temperature of the hot end of the thermocouple pair is more uniform, and the response rate of the detector is improved. The radiant energy of the far ultraviolet ultraviolet radiation source is converted into an output thermoelectric electromotive force, a mathematical model of Fourier's law and the Seebeck effect is established for calculation, and the heat flux density of the far ultraviolet ultraviolet radiation source is measured.

A semiconductor device (20) characterized by comprising a semiconductor device (1), and further comprising an emitter electrode (aluminum electrode (2E)) and a gate electrode (aluminum electrode (2G)) on the semiconductor device (1), the emitter electrode being formed with a plated portion (Ni plating layer (3E)) in a manner to cover the emitter electrode, and the gate electrode being formed as a non-plated portion composed of a sputtered film. The non-plated portion is rectangular in plan view, and three corners of the rectangular shape are right-angled. The plated portion opposite to the non-plated portion has an R shape in plan view.

The invention provides a 60KW high-power single-mode semiconductor laser. The 60KW high-power single-mode semiconductor laser comprises an N aluminum electrode shell, a GaN substrate is arranged at the bottom of the inner side wall of the N aluminum electrode shell, an n-ALGaN layer is arranged on the upper surface of the GaN substrate, a first GaN layer is arranged on the upper surface of the n-ALGaN layer, an INGANactive layer is arranged on the upper surface of the first GaN layer, and a second GaN layer is arranged on the upper surface of the INGANactive layer. The GaN substrate and the SiN layer are used as the substrate of the laser to improve the light transition probability, then the n-ALGaN layer and the p-ALGaN layer are used as the epitaxial layers of the laser to improve the voltage resistance of the laser, and then the first GaN layer, the INGANactive layer and the second GaN layer are used to improve the limiting capability of the laser to holes and electrons, so that the performance of the laser is improved. The light wave generated by compounding can be effectively limited, the radiation efficiency is greatly improved, better ohmic contact can be formed between the p-GaN layer and the P aluminum electrode, the ohmic contact resistance and the power consumption of the laser are reduced, and the photoelectric conversion rate of the laser can reach 80%.

The invention provides aluminum electrode corrosion foil by-product-based wet-mixed plastering mortar and a preparation method thereof, and belongs to the technical field of solid waste resource utilization. Calcium hydroxide generated by hydration of cement, calcium sulfate and aluminum hydroxide in the aluminum-containing electrode corrosion foil byproducts and silicon dioxide and aluminum oxide in the fly ash are utilized to generate calcium silicate, calcium aluminate and ettringite gel with cohesiveness and water resistance, the expansion performance of the ettringite gel is utilized, and the corrosion resistance of the aluminum-containing electrode corrosion foil is improved. The cohesiveness and the strength of the mortar are further enhanced, and the crack resistance and the water resistance of the mortar are improved; the dispersing agent is added to improve the dispersity of the raw materials; by adding the air entraining agent, the viscosity of the mortar is reduced, and the crack resistance and toughness are improved; by limiting the mass content of each raw material, the performance of the wet-mixed plastering mortar can meet the standard requirements; and the uniformity and construction performance of the mortar are ensured by limiting the particle size of the aluminum electrode corrosion foil byproduct and the consistency of the wet-mixed plastering mortar.

A device and method for controlling the thickness of air gap defects for space charge measurement includes an aluminum electrode, a piezoelectric sensor below the aluminum electrode, a test sample lower piece above the aluminum electrode, a rigid partition suspended above the aluminum electrode and the test sample lower piece, the rigid partition having a through test hole and covered by an upper test sample; above the upper test sample, a horizontal bar with adjustable height driven by a vertical measuring instrument is arranged, a micrometer is arranged on the horizontal bar, a high-voltage electrode is arranged below the micrometer, the high-voltage electrode is connected to a high-voltage power supply, and the high-voltage electrode is aligned with the test hole of the rigid partition. The air gap defect thickness control device provided by this invention can achieve micron-level quantitative control of the air gap, effectively evaluating the influence of tiny air gap thickness on space charge distribution.

The application discloses a preparation method of a back junction solar cell and the back junction solar cell. The preparation method comprises the following steps: forming a plurality of holes in an array arrangement on a front surface passivation anti-reflection layer of a P-type silicon substrate; arranging aluminum paste in the holes; performing first sintering on the P-type silicon substrate with the aluminum paste in the holes at 700 DEG C-950 DEG C, so as to form a P+ heavy-doped local front surface field, an aluminum electrode and an oxide layer covering the aluminum electrode; stripping the oxide layer covering the aluminum electrode; printing a plurality of silver paste lines on the front surface passivation anti-reflection layer, the silver paste lines being in contact with the front surfaces of the aluminum electrodes with the oxide layer stripped, and the silver paste lines being connected with the aluminum electrodes with the oxide layer stripped; and performing second sintering on the P-type silicon substrate with the silver paste lines, so that the sintering temperature of the second sintering is lower than the melting point of aluminum, and a silver electrode and the aluminum electrodes connected with the silver electrode form a front surface fine grid line of the back junction solar cell. The light-electricity conversion efficiency of the back junction solar cell is effectively improved.

The invention belongs to the technical field of photovoltaic module recovery, and particularly relates to a method for recovering silver from an out-of-service photovoltaic module. The method comprises the following steps: 1) disassembling a retired photovoltaic module, removing an aluminum frame and a junction box, and cutting the retired photovoltaic module into blocks by using an angle grinder; (2) putting the assembly into a muffle furnace, calcining at 500 DEG C for 1.5-2 hours, and removing the EVA adhesive film and the back plate to obtain toughened glass, a welding strip and a battery piece; 3) performing ultrasonic cleaning on the battery piece by using deionized water, airing the battery piece, placing the battery piece in a liner of a hydrothermal kettle, adding a tetramethylammonium hydroxide aqueous solution, and performing heating reaction at 80-100 DEG C for 0.8-1.2 hours to enable the silver grid line to be stripped from the surface of a silicon wafer; and 4) separating the silver grid line from the silicon wafer, respectively washing with absolute ethyl alcohol, and drying to obtain the silver grid line and the silicon wafer. According to the method, the low-concentration tetramethylammonium hydroxide aqueous solution is adopted, the silver grid line can be stripped and the aluminum electrode can be leached at the same time through heating at a relatively low temperature, and the residual silicon wafer is relatively complete.

A method for purifying acidic wastewater from a mining process, the method comprising pretreating (12) the acidic wastewater to obtain pretreated wastewater (16), providing a water purification apparatus (30) comprising an electrolytic cell (14) comprising a substantially vertical tube connected to a source of electric power (13) and comprising one or more first electrode(s) (2) comprising one or more iron and / or aluminum electrode(s), and one or more inert second electrode(s) (4), and a substantially vertical separator tower (20) arranged in a flow connection with the electrolytic cell, applying the pretreated wastewater (16) to the electrolytic cell (14), operating the electrolytic cell (14) to produce iron hydroxide and / or aluminum hydroxide (3) acting as molecular sieve capable of trapping impurities, such as comprising sulphates and any remaining solids, and to produce hydrogen causing the molecular sieve with the trapped impurities to raise in the vertical tube as an accumulating floc, conveying the raising floc into the separator tower (20), wherein the floc (5, 19) is separated by expelling from the top of the separator tower (15), and obtaining first purified water (W1) from the separator tower (20) from below the raising floc. A water purification apparatus (30) and use of the water purification apparatus.

The invention provides a device and method for rapidly cleaning hydroxyapatite shells with array aluminum electrodes, and relates to the technical field of hydroxyapatite cleaning. The device comprises a water tank body, a grid funnel and a base, the water tank body is provided with a water conveying pipe, a transparent safety cover and a drainage pipe, the grid funnel is provided with a semicircular lifting ring, the base comprises a propeller, an array aluminum electrode and a motor, the array aluminum electrode electrolyzes water to generate strong oxidizing ions and a strong alkaline environment, and the strong oxidizing ions such as OH <-> generated by electrolysis are used for generating strong oxidizing ions. Organic matters attached to the surface of the shell can be quickly oxidized and decomposed into water-soluble small molecular substances, dirt stripping is realized, a large amount of OH <-> generated by electrolyzing water enables a water body to be strongly alkaline, inorganic impurities on the surface of the shell can be softened, meanwhile, the adhesive force between the dirt and the surface of the shell can be weakened, and the impurities can be washed away more easily; and the structure of hydroxyapatite is not damaged. The device can quickly, automatically and efficiently clean shells, and the cleanliness and the environmental protection property in the shell cleaning process are improved.

This invention relates to the field of aluminum-air batteries and discloses a single aluminum-air battery cell structure. Each cell includes a battery casing, an air electrode, a negative terminal, a negative electrode, and an aluminum electrode that can be inserted into the battery casing. Inner grids are provided on both sides of the battery casing, and air channels are formed between the inner grids of adjacent battery casings of multiple cells. Positive terminals are provided on both sides of the battery casing, and the aluminum electrode is connected to the negative electrode through the negative terminal. This provides a single battery cell structure that allows for quick replacement of the aluminum electrode.

The application belongs to the technical field of wastewater treatment, and particularly relates to a phosphogypsum leachate treatment unit and a treatment method. The phosphogypsum leachate treatment unit comprises a cylinder, a central shaft, an iron electrode plate and an aluminum electrode plate. The method for treating phosphogypsum leachate by using the phosphogypsum leachate treatment unit comprises the following steps: simultaneously performing ozone oxidation and electrolysis coupling reaction on the phosphogypsum leachate to be treated in the phosphogypsum leachate treatment unit, adjusting the pH value of the effluent from the treatment unit, and performing solid-liquid separation on the precipitate. The supernatant is the effluent. The method simultaneously removes phosphoric acid ions, fluoride ions and organic pollutants in the leachate by simultaneously performing ozone oxidation and electrolysis coupling reaction on the phosphogypsum leachate to be treated in the phosphogypsum leachate treatment unit, so that the COD, total phosphorus and fluoride in the wastewater meet the discharge standards, the total phosphorus removal rate can reach 99%, the fluoride ion removal rate is greater than 99%, and the COD removal rate is greater than 76%.

The application provides a method for preparing an aluminum electrode by molten salt-ultrasonic synergistic modification and application, and relates to the technical field of metal electrode material smelting and preparation. The method comprises raw material configuration and mixing, construction of a molten salt / aluminum liquid two-phase reaction system, ultrasonic synergistic molten salt etching and in-situ metal loading, selective interface screening and directional transport, ultrasonic driving interfacial migration and dispersion anchoring, cooling and solidification, and finally obtaining an MXene dispersed embedded aluminum-based composite anode material. The obtained MXene sheet layer has a thickness of 10-500-nm, a lateral size of 200nm-20um, and a surface rich in -F, -O and -Cl functional groups, and the loaded metal exists in the form of surface adsorption or interlayer embedding. The aluminum-based composite anode material prepared by the application can effectively inhibit the hydrogen evolution side reaction and self-corrosion behavior, reduce the corrosion current density, improve the anode utilization rate and maintain high discharge performance, and can be applied to aluminum-air batteries, aluminum-oxygen batteries, aluminum-ion batteries and other energy storage devices with aluminum as the negative electrode, and is also suitable for the fields of metal corrosion prevention and interface regulation.

The invention provides dry-mixed plastering mortar containing aluminum electrode corrosion foil waste and a using method of the dry-mixed plastering mortar, and belongs to the technical field of solid waste resource utilization. Calcium hydroxide generated by hydration of cement, calcium sulfate and aluminum hydroxide in the aluminum-containing electrode corrosion foil waste and silicon dioxide and aluminum oxide in the fly ash are utilized to generate calcium silicate, calcium aluminate and ettringite gel with cohesiveness and water resistance, and the expansion performance of the ettringite gel is utilized to improve the water resistance of the aluminum-containing electrode corrosion foil waste. The cohesiveness and the strength of the mortar are further enhanced, and the crack resistance and the water resistance of the mortar are improved; by adding the water reducing agent and the air entraining agent, the dispersity of the raw materials is improved; by adding the air entraining agent and the fiber, the crack resistance and the toughness are improved.

The utility model relates to the technical field of cruise flashlight equipment, in particular to an intelligent cruise flashlight with an aluminum air battery, which comprises a flashlight body, a three-level isolation cabin arranged in the flashlight body and a foldable aluminum electrode assembly used for supplying power to the flashlight, and the three-level isolation cabin comprises a front-end optical cabin, a middle reaction cabin and a tail control cabin. The multifunctional electric torch has the advantages of being long in endurance, suitable for various scenes and accurate in navigation and positioning.

The invention relates to a graphene / Cu NPs / silicon heterojunction-based Schottky solar cell preparation method, which relates to the photovoltaic technical field, and comprises the following steps: 1) pre-treating a silicon wafer; 2) evaporating a copper nano film on the surface of the pretreated silicon wafer; 3) depositing a graphene film on the copper nano film; 4) carrying out annealing treatment on the heterojunction; 5) evaporating an electrode layer on the back surface of the silicon wafer; and 6) evaporating an electrode layer on the front surface of the silicon wafer. According to the preparation method of the Schottky solar cell based on the graphene / Cu NPs / silicon heterojunction, the photoelectric conversion efficiency of the Schottky solar cell is remarkably improved to 15% or above, meanwhile, the material cost is reduced to 1 / 100 of that of a traditional precious metal system, and 2-5 nano copper nanoparticles formed after annealing have triple functions in the cell at the same time, so that the photoelectric conversion efficiency of the Schottky solar cell is greatly improved. As a back electrode material, the material cooperates with a silver-aluminum electrode to provide a low-resistance conductive path, the contact resistance is lower than 0.1 ohm square centimeter, an efficient Schottky junction is formed with a silicon substrate interface to enhance light capture, and the light absorption efficiency is improved by 30%.

The application relates to the technical field of metal electrodes, and discloses an aluminum electrode and a preparation process and application thereof. The preparation process of the aluminum electrode comprises the following steps: printing aluminum paste, wherein the aluminum paste comprises aluminum powder, a metal compound, an organic phase, an inorganic glass phase and conductive carbon nanomaterial, the inorganic glass phase comprises rare earth oxides; sintering the aluminum paste: placing the aluminum paste in a pre-sintering section at 150-350 DEG C, so that the organic phase is volatilized and decomposed; placing the aluminum paste in a middle sintering section at 350-600 DEG C, so that the inorganic glass phase is softened into a glass body, and a silicon-oxygen protective thin layer is formed on the doped polysilicon after etching and anti-reflection passivation; placing the aluminum paste in a post-sintering section at 600-700 DEG C, so that a metal-based composite carbon nanomaterial layer is formed on the silicon-oxygen protective thin layer, the aluminum powder is gradually dissolved, and the aluminum layer is formed on the metal-based composite carbon nanomaterial layer after cooling. The aluminum paste is not in contact with the doped polysilicon in the sintering process, and the obtained aluminum electrode can greatly reduce the interface metal composite and contact resistance.

The invention discloses a vertical-structure polarization sensitive diode device based on a styryl organic single crystal, and a preparation method and application of the vertical-structure polarization sensitive diode device. The vertical structure polarization sensitive diode device based on the styryl organic single crystal comprises a top electrode, a hole injection layer, a hole transport layer, the styryl organic single crystal, an electron transport layer, an electron injection layer, a bottom electrode and a glass substrate which are sequentially arranged from top to bottom, the top electrode is a silver electrode; the hole injection layer comprises molybdenum trioxide; the hole transport layer comprises N, N '-diphenyl-N, N'-(1-naphthyl)-1, 1 '-biphenyl-4, 4'-diamine; the styryl organic single crystal is a 1, 4-bis-(2-methyl-styryl) benzene single crystal; the electron transport layer comprises 3, 3 '-[5'-[3-(3-pyridyl) phenyl] [1, 1 ': 3', 1 ''-terphenyl]-3, 3''-diyl] bipyridine; the electron injection layer comprises lithium fluoride; the bottom electrode is an aluminum electrode. According to the invention, the vertical-structure polarization sensitive diode device based on the styryl organic single crystal, which simultaneously has light response and luminescence properties, is obtained through simple regulation and control.

The invention discloses a method for preparing a copper-indium-selenium thin-film solar cell. The method comprises the following steps: step 1, preparing an anion source solution; 2, preparing a cation source; 3, preparing a precursor solution; 4, preparing an absorption layer through chemical bath deposition; 5, preparing a buffer layer through chemical bath deposition; 6, preparing a window layer; 7, performing vacuum thermal evaporation on a nickel-aluminum electrode; the copper indium selenium thin film battery is obtained; according to the method, the well-crystallized copper indium selenium film is successfully prepared on the molybdenum-plated glass substrate in the low-temperature water-phase environment, and the step of high-temperature selenylation at 400-580 DEG C in the traditional process is avoided; process conditions are milder and safer, and equipment requirements are remarkably reduced; compared with the traditional Na2SeSO3 source, the selenium source solution adopted by the invention has the advantages that the film thickness is greatly improved compared with the traditional method, and the film forming advantage is obviously reflected; the finally obtained copper-indium-selenium thin film is high in crystallization quality and uniform in morphology, and the composition is close to the stoichiometric ratio.

This invention discloses a pretreatment device for precise quantification and isotope analysis of dissolved organic nitrogen, including an extraction and filtration device for extracting and filtering the sample; and a separation and purification device connected to the extraction and filtration device for separating and purifying the extracted and filtered solution to obtain purified dissolved organic nitrogen. The separation and purification device is an electrodialysis device, or it includes an aluminum electrode ionization system, an anion and cation exchange membrane, and a fractional purification system. This invention provides a basis for rapidly and accurately analyzing the isotope content of dissolved organic nitrogen and phosphorus in sediments and effectively tracing the source of dissolved organic nitrogen and phosphorus based on the detection results.

The embodiment of the present application provides an aluminum corrosion on-line monitoring instrument, an aluminum corrosion on-line monitoring method, device and system, the aluminum corrosion on-line monitoring instrument includes physical monitoring module and chemical monitoring module that communicate respectively system water, the physical monitoring module and the chemical monitoring module are all provided with current signal collector, the current signal collector is connected with host computer, and current feedback signal is sent to the host computer;The monitoring electrode of the current signal collector adopts the spiral pipe structure aluminum electrode, the spiral pipe structure aluminum electrode is divided into different sub-electrodes according to the different spiral pipe rotary arm inclination, and is used for monitoring the corrosion trend of each sub-electrode;The inert electrode of the current signal collector adopts the bus structure, the inert electrode is arranged at the center point of the spiral pipe tubular electrode, and is used for monitoring the total corrosion trend, and the present application can quickly, accurately and conveniently monitor the aluminum corrosion.

The application provides a purification method of solid aluminum electrolysis product, mainly comprising the following steps: inserting an aluminum electrode plate into a molten electrolyte to perform electrolysis by direct current; scraping off the product on the surface of the aluminum cathode plate, and pressing the product scraped off from the surface of the aluminum cathode plate to obtain a cake-shaped product; placing the cake-shaped product into a molten aluminum furnace, and covering the cake-shaped product with a powdery electrolyte on the upper part of the cake-shaped product; heating the cake-shaped product and the powdery electrolyte to complete melting, cooling the lower-layer aluminum liquid, and then performing vacuum melting, and after the melting is completed, performing ingot casting to obtain a high-purity aluminum ingot. The application can realize complete separation of high-purity aluminum and electrolyte, can obtain high-purity aluminum with higher purity, can greatly improve the yield of high-purity aluminum by reducing the oxidation degree of high-purity aluminum in the melting process, and can shorten the process flow, has no pollution, and can reduce the production cost of high-purity aluminum.

Electroplating of aluminum may be utilized to form electrodes for solar cells. In contrast to expensive silver electrodes, aluminum allows for reduced cell cost and addresses the problem of material scarcity. In contrast to copper electrodes which typically require barrier layers, aluminum allows for simplified cell structures and fabrication steps. In the solar cells, point contacts may be utilized in the backside electrodes for increased efficiency. Solar cells formed in accordance with the present disclosure enable large-scale and cost-effective deployment of solar photovoltaic systems.

The invention relates to a method for rapidly detecting microdefects of a ferroelectric crystal material based on reverse voltage pulses, which comprises the following steps of: preparing the ferroelectric crystal material to be detected, connecting an aluminum electrode on a + Z surface of the ferroelectric crystal material to be detected with a negative electrode of an external electric field, connecting an evaporation transparent indium tin oxide conductive layer on a-Z surface of the ferroelectric crystal material to be detected with a positive electrode of the external electric field, and placing in silicone oil; voltage pulse is applied, the condition of the to-be-detected ferroelectric crystal material is observed through the real-time monitoring device, the to-be-detected ferroelectric crystal material with point defects can be excited by reverse voltage and has contrast display in the real-time monitoring device, and the to-be-detected ferroelectric crystal material without point defects has no phenomenon in the real-time monitoring device after being excited by the reverse voltage. By adopting the method for detecting the microdefect of the ferroelectric crystal material by applying the reverse pulse, the quality of the wafer can be quickly detected in a lossless manner, and a high-quality ferroelectric crystal can be developed and guaranteed for subsequent crystal devices.

This invention discloses a foamed aluminum electrode foil for aluminum electrolytic capacitors and its preparation method, belonging to the technical field of aluminum electrolytic capacitors. The preparation method of the foamed aluminum electrode foil includes the following steps: preparing an aluminum powder slurry, uniformly coating it onto the surface of a pretreated foamed aluminum foil, and then drying and step-by-step sintering to form a strong metallurgical bond between the aluminum powder particles and between the aluminum powder particles and the foamed aluminum matrix, thus obtaining the electrode foil. This invention utilizes the inherent three-dimensional porous structure of foamed aluminum to obtain an ultra-high specific surface area, while simultaneously constructing a highly efficient three-dimensional conductive network through a dense aluminum layer on the surface, significantly enhancing the mechanical strength of the foil. The resulting electrode foil possesses high specific capacitance, low equivalent series resistance, high mechanical strength, and good processability, providing a key material foundation for the preparation of next-generation high-performance, high-capacity, low-ESR aluminum electrolytic capacitors.

Provided is an aluminum-air battery system comprising: a battery unit including an aluminum electrode that emits electrons; and an aluminum pellet manufacturing unit which provides aluminum pellets manufactured from aluminum to the aluminum electrode.