70results about How to "Realize commercial application" patented technology

The present invention belongs to the technical field of lithium ion batteries, and particularly relates to a three-dimensional metal lithium negative electrode and a preparation method and an application thereof. The three-dimensional metal lithium negative electrode comprises a three-dimensional copper foam framework. Metal copper nanowires grow on the surface of the copper foam. By modifying thethree-dimensional (3D) copper foam framework with the copper nanowires, a surface with lithium affinity is obtained, thereby metal lithium is melted into the metal framework and the three-dimensionalmetal lithium negative electrode is realized. In addition, in the process of melting lithium, metal lithium reacts with copper to form Li-Cu alloy. The invention can inhibit the formation of dendritic lithium in the metal lithium negative electrode, and realizes a stable cycle of the metal lithium negative electrode. Compared with the conventional metal lithium plate, the present invention makesthe metal lithium battery have better cycle stability and higher rate performance, and is of great value for realizing the commercial application of metal lithium battery.

The invention relates to a method for large-scale preparation of graphene and two-dimensional boron nitride crystal materials. The method is characterized in that in the presence of NH3BH3 as a ball milling assistant, a solid mixture having a mass ratio of an inorganic layered material to NH3BH3 of 1: 0.5-5 is subjected to ball milling treatment by a mechanical ball milling technology so that high-efficiency peeling on the inorganic layered material such as graphite and hexagonal boron nitride is realized; and the products are washed and filtered for NH3BH3 removal and the filtration products are dried so that the single-layer or multiple-layer graphene and two-dimensional boron nitride crystal materials are obtained. The graphene and two-dimensional boron nitride crystal materials have high purity and complete structures. The method has the advantages of easy acquisition of raw materials, operation simpleness, safety and low cost and is suitable for large-scale preparation of the graphene and two-dimensional boron nitride crystal materials.

The invention provides a preparation method of super-hydrophobic graphene sponge. The preparation method comprises the specific steps: (1) cleaning and drying sponge; (2) carrying out plasma processing on the sponge processed in the step (1); (3) soaking the sponge processed in the step (2) into graphene oxide dispersion liquid, and adding hydrazine hydrate; and (4) heating mixed liquid prepared in the step (3) to 85-95 DEG C, maintaining for 0.5-24 hours, taking out the sponge, and drying, so as to obtain the super-hydrophobic graphene sponge.

The invention discloses a metal bipolar plate for a fuel cell. The metal bipolar plate comprises a stainless steel substrate and a surface modification layer, wherein the surface modification layer comprises a continuous insulating layer and discontinuous conductive particles; and the continuous insulating layer and the discontinuous conductive particles are attached to the surface of the stainless steel substrate. According to the metal bipolar plate for the fuel cell disclosed by the invention, through a surface treatment technology of depositing the continuous insulating layer and the discontinuous conductive particles in combination on the surface, a compact protection layer can be formed; the corrosion rate of the metal bipolar plate is greatly reduced; the contact resistance can be reduced; and the service life of the metal bipolar plate is prolonged. The discontinuous conductive particles are deposited through a plasma thermal spraying technique; micro metallurgic bonding can be formed by the conductive particles and the stainless steel substrate; the adhesive force of the discontinuous conductive particles is improved; and the fabrication cost is reduced.

The invention discloses a one-way impulse type wave power generation device which comprises a water absorbing cabin, an air cabin, a flotation tank, an inlet elbow, an outlet straight pipe, a first flange plate, an installation pipe, a one-way impulse type air turbine and a power generator. The air cabin and the water absorbing cabin are jointed through a bolt and are separated through a rotatablealuminum alloy cover plate; a fixing block and a first fixing ring are arranged in the air cabin; the aluminum alloy cover plate is provided with a movable rod arranged in the first fixing ring in apenetrating way and rotating around the first fixing ring; a first end of the inlet elbow is arranged in the water absorbing cabin under the aluminum alloy cover plate; a second end of the inlet elbowis arranged on the upper part of the flotation tank and is provided with a second fixing ring; a rubber sheet capable of clinging to or loosening the second fixing ring is arranged in the second endof the inlet elbow; and the outlet straight pipe is arranged on the upper part of the air cabin and is connected with the installation pipe and the one-way impulse type air turbine through the first flange plate. According to the one-way impulse type wave power generation device provided by the invention, high-efficient conversion from wave energy to air kinetic energy to electric energy is realized, and the energy conversion efficiency is high.

The invention relates to a method for preparing a stable nano anatase titanium dioxide alcohol phase sol, which belongs to a preparation method of a semiconductor photoelectric material. The invention provides a simple method for preparing a nano anatase titanium dioxide nano nanocrystalline alcohol phase sol at low temperature by using a one-step method, and the raw materials comprise a titanium-containing organic matter, an organic solvent, distilled water or deionized water, a dispersant, a hydrolysis inhibitor and a catalyst with a corresponding mol ratio of 1:(20-100):(0.5-3):(1-5):(0.1-3):(0.01-1.5). According to the invention, the titanium organic matter is added in an alcoholic solution mixed with the dispersant and the catalyst, the hydrolysis inhibitor and the water are added, the materials are stirred for 3-48 hours under normal pressure and at the temperature of 25-100 DEG C, a pH value of a reactant is controlled to 1-5, and the transparent stable nano anatase titanium dioxide alcohol phase sol can be obtained. A hydrolysis intermediate product can be removed by using a dialysis technology finally. The sol has the advantages of good sol crystallinity, stability and transmittance performance, and concentration of the sol can be diluted by alcohol according to requirement. The prepared sol enables direct film forming on various high temperature-resistant or high-temperature-intolerant material substrates, and also can be used for directly preparing photocatalytic aqueous environmentally-friendly coatings or visible light-excited photocatalytic environmentally-friendly coatings.

The invention relates to a method for preparing a surface-hydroxylated iron oxide thin film photoanode material. The method comprises the following steps: (1) adopting inorganic iron salt and sodium nitrate as raw materials, adopting FTO conductive glass as a substrate, carrying out thermostatic hydrothermal reaction of 40-180 DEG C for 1-8 h, carrying out washing with water, carrying out drying,and carrying out calcination of 550-850 DEG C for 5-120 min, so as to obtain an iron oxide thin film electrode; and (2) treating the iron oxide thin film, introducing air, oxygen, argon or nitrogen asreactant gas, controlling the plasma treatment time to be 1-5000 s, controlling the power to be 5-300 W, and controlling the gas flow rate to be 200-520 ml / min. The method provided by the invention has the beneficial effects that the preparation process is simple and easy, the cost is low, and the efficiency is high; the photocatalytic water decomposition performance of the prepared surface-hydroxylated iron oxide thin film is excellent; the hydrogen yield is greatly improved; and the application prospect in the field of new energy materials in the future is relatively good.

The invention relates to a silicon cathode of a Li-ion secondary battery. The silicon cathode comprises a conducting matrix and a material layer, wherein the material layer comprising a silicon-contained material layer and a titanium nitride layer is adhered on the surface of the conducting matrix, the silicon-contained material layer is adhered on the conducting matrix and the titanium nitride layer is adhered on the silicon-contained material layer. The invention also provides a preparation method of the silicon cathode and a Li-ion secondary battery comprising the silicon cathode. The Li-ion secondary battery comprising the silicon cathode prepared by the invention has higher discharging specific capacity, higher first-time charge-discharge efficiency and favorable circulation performance. The silicon cathode provided by the invention can realize commercialization application of the Li-ion secondary battery with low cost.

The invention discloses a preparation method of a three-dimensional structure carbon-coated manganese cobalt oxide nanowire material. The preparation method comprises the following specific steps: using a current collector as a base, using cobalt nitrate hexahydrate and manganese nitrate tetrahydrate as a cobalt source and a manganese source, and using deionized water, urea and ammonium fluoride as solvents; firstly using a hydrothermal method to synthesize a manganese cobalt oxide nanowire precursor; then obtaining a manganese cobalt oxide negative electrode after calcinations in argon; finally, introducing carbon source gas through chemical vapor deposition, and coating the manganese cobalt oxide nanowire material with a carbon material layer. The three-dimensional structure carbon-coated manganese cobalt oxide nanowire material disclosed by the invention is relatively large in specific surface area, sufficient contact and ion transport of an electrolyte and an active substance are facilitated, the active site of a reaction is increased, the disadvantage that a manganese cobalt oxide material is low in electrical conductivity is overcome, and when the three-dimensional structurecarbon-coated manganese cobalt oxide nanowire material service as a negative electrode for lithium ion batteries, the electrochemical performance is greatly improved, the volume expansion is relieved,and the cycling stability is strengthened.

The invention discloses a solvated composite solid electrolyte and a preparation method and application thereof. The method comprises the steps: preparing a composite solid electrolyte film which takes vinylidene fluoride-co-hexafluoropropylene as a main phase and is doped with polyoxyethylene and Li1.5Al0.5Ge1.5(PO4)3 through employing a solution pouring method; soaking the composite solid electrolyte film in solvated ionic liquid to finally obtain the composite solid electrolyte. The composite solid electrolyte prepared by the invention has ionic conductivity equivalent to that of a liquid electrolyte, has good interface compatibility, has certain mechanical strength, has good electrochemical stability and has good safety. The preparation process is simple and the solvated composite solid electrolyte can be produced and used in a large scale. When the solvated composite solid electrolyte is applied to a lithium battery, a high-safety lithium battery can be constructed, and the cyclelife and the cycle performance of the battery can be ensured.

The invention belongs to the field of lithium-sulfur battery electrode materials, and particularly relates to a carbon@acrylonitrile-sulfide-based polymer composite cathode active material. The material comprises a porous carbon material and an acrylonitrile-sulfide-based polymer filled in the pores of the porous carbon material in situ. The present invention further provides a preparation methodof an absorption, mist spray and vulcanization means of a solution. The cathode active material has the characteristics of tight combination of sulfur and carbon, good conductivity, high tap density and the like, and is further beneficial to remarkably improving the rate capability and the cycle performance of a lithium-sulfur battery prepared from the cathode active material.

A preparation method of a shape memory high polymer material based on thermoplastic vulcanizate comprises steps as follows: (1) a sample of ethylene-vinyl acetate copolymer / nitrile rubber thermoplastic vulcanizate is fixed on a simple tensile fixture and preheated; (2) external force is applied, so that the preheated thermoplastic vulcanizate sample deforms and then is soaked in an ice-water mixture to be set, and the distance between scale marks is recorded; (3) external force is removed, the sample is naturally placed at the room temperature for 24 hr, and the distance between scale marks isrecorded; (4) the thermoplastic vulcanizate sample in (3) is put in a heating temperature, and the distance between scale marks is recorded; (5) the SF (shape fixed rate) and the SR (shape recovery rate) of the thermoplastic vulcanizate are calculated. The prepared shape memory high polymer material based on thermoplastic vulcanizate has the advantages of being low in hardness, good in flexibility, easy to form, recyclable and low in switch temperature and is expected to be applied to sensors and self-assembly equipment.

The invention discloses a bismuth-based perovskite material and a preparation method thereof. The chemical formula of the material is (C12H14N2) BiX5, wherein C12H14N2 represents a positive bivalent methyl viologen cation, and X represents any one or more of Cl, Br and I. The material is prepared by carrying out solvothermal reaction in a methanol solution by taking a bismuth source and haloid acid as raw materials and 4, 4'-dipyridyl or methyl viologen as a structure directing agent. The preparation method disclosed by the invention is simple and convenient to operate and good in repeatability, the photoelectric property of the material can be effectively regulated and controlled by changing halogen, and meanwhile, the metal element bismuth is used for replacing a toxic element lead, so that harm to a human body and pollution to the environment are reduced. The material disclosed by the invention is good in wet and thermal stability, excellent in photoelectric property and good in semiconductor property, and has a wide application prospect in the fields of solar cells, photoelectric materials, photoelectric detection, photo-catalysis / photo-electro-catalysis and the like.

The invention relates to a preparation method of a highly homogeneous Pd-loaded diatomite composite material. The preparation method comprises the following steps: (1) putting diatomaceous support particles into a rotary impregnation bottle, and vacuumizing; (2) adding a palladium salt impregnation liquid, carrying out rotation impregnation for more than 5 min, and heating the impregnation bottle to form a palladium salt / diatomite particle intermediate; and (3) carrying out high-temperature heating decomposition on the obtained intermediate to obtain the Pd-loaded diatomite composite material. The Pd-loaded diatomite composite material obtained by the above method has advantages of high palladium load capacity, uniform adsorption, performance consistency, high stability of batches and the like.

The invention provides a diamine monomer containing a spirofluorene functional group, a preparation method thereof and polyimide with a low dielectric constant. The diamine monomer containing the spirofluorene functional group has the following chemical structural formula, R1 is a spirofluorene unit, and R2 is an aromatic amino group. A spirofluorene functional unit with a spatial torsion structure and relatively large steric hindrance is introduced into the diamine monomer, and the dielectric constant of the prepared polyimide is reduced by increasing gaps among molecular chains and the freevolume of the structure; meanwhile, the rigid structure of the spirofluorene functional unit is beneficial to make up for the reduction of the glass-transition temperature of polyimide caused by the reduction of the acting force between molecular chains, and is also beneficial to the improvement of the dimensional stability of the polyimide film. In addition, the diamine monomer containing the spirofluorene functional group is simple and convenient to synthesize and prepare, and commercial application is facilitated.

The invention discloses a preparation method, a product and application of a nickel-based metal organic framework compound, and belongs to the technical field of electrocatalysis. The preparation method comprises the following steps: mixing nickel salt, 2, 5-thiophenedicarboxylic acid, 4, 4'-bipyridine, water and N, N-dimethylformamide into a reaction container, uniformly stirring, carrying out ultrasonic treatment, then putting into a high-pressure reaction kettle, reacting, cooling to room temperature, and carrying out suction filtration to obtain emerald green powder, namely the nickel-based metal organic framework compound. The prepared material has great advantages in the aspects of catalytic oxygen evolution and energy conversion, and in the catalytic oxygen evolution reaction, the prepared composite material has very small overpotential under high current density, and has very excellent catalytic activity and cycling stability under high current density. The catalyst has better conductivity than commercial iridium carbon, and has better electron utilization rate in the electrochemical catalysis process.

The invention relates to a wind-radiating vehicular fuel cell, comprising a fuel cell stack formed by a plurality of sections of monocells; the fuel cell stack is compactly fixed by an end plate; the external package of the fuel cell is fixedly connected on the end plate of the fuel cell stack; the outer surface of the external package of the fuel cell is provided with radiating fins which are distributed parallelly to the moving direction of a vehicle; the inner surface of the external package is coated with heat-conducting rubber in an attached manner; and the surface of the heat-conducting rubber is connected with double polar plates of the fuel cell stack in a leaning manner. The wind-radiating vehicular fuel cell has the advantages that: the outer surface of the external package of the fuel cell stack is provided with the radiating fins, so as to lead the external package of the fuel cell stack to be firmer, thus leading the assembly of the external package of the fuel cell stack to be more strong and firm; and the wind-radiating vehicular fuel cell also can save the energy, reduce radiating devices, optimize the system, improve the reliability, and can reduce the cost, thus being beneficial to realizing the commercial application of the fuel cell.

The invention discloses a soilless culture rapid seedling culturing method and system inside a brassicaceous vegetable greenhouse. The soilless culture rapid seedling culturing method and system inside the brassicaceous vegetable greenhouse is used for culturing seedlings inside a seedling culturing house. The method comprises the following steps that disinfected peat soil and perlite are mixed according to the ratio of 4-5:1 to be uniform to be used as a matrix, the matrix is laid on a seedling culturing plate, and 0.5-0.8 cm deep holes are formed in the seedling culturing plate; seeds are planted into the holes, then, the matrix is laid flatly, and the seedling culturing plate is placed on a seedling culturing tray; a nutrient solution is pumped to the bottom of the seedling culturing tray, and the nutrient solution permeates upwards through the small holes in the bottom of the seedling culturing plate; the environment temperature is kept to range from 16 DEG C to 25 DEG C, and the humidity is kept to range from 65% to 100%; after seeds begin to break ground, LED light sources with the ratio of white light sources to red light sources being 1:1-9:1 are adopted for illumination. By adopting the technical scheme, no pesticide needs to be adopted, the seedling growth speed is high, seedling leaves are thick and large, stems are thick and solid, harvesting is performed early, the yield is high, and automatic control can be achieved.

The invention relates to a preparation method for a shape memory material based on thermoplastic vulcanized rubber. The preparation method comprises the following steps: (1) fixing a sample strip of ethylene-acrylic acid copolymer / chloroprene rubber blended type thermoplastic vulcanized rubber on a simple stretching clamp, and then preheating the sample strip; (2) applying external force to enablethe preheated sample strip of the thermoplastic vulcanized rubber to deform, afterwards, quickly immersing the sample strip in an ice water mixture for shaping, and recording the distance between scale lines; (3) removing the external force, naturally standing for 24 hours at the room temperature, and recording the distance between the scale lines; (4) arranging the thermoplastic vulcanized rubber in the step (3) in a heating environment, and recording the distance between the scale lines; and (5) calculating the shape fixed rate (SF) and the deformation recovery rate (SR) of the thermoplastic vulcanized rubber. The shape memory material based on the thermoplastic vulcanized rubber prepared by the invention has the advantages of being low in hardness, good in flexibility, easy to shape, recyclable and low in switch temperature and is expected to be applied to sensors and self-assembly equipment.

The invention relates to a halide-containing brake material and a preparation method and application thereof, and belongs to the technical field of brake materials. The preparation method comprises the following steps: adding aromatic alcohol phenolic resin, butadiene rubber, feldspar powder, argil, kaolin, calcined petroleum coke powder and halide into a mixer according to a proportion, mixing and stirring for 20-25min, then adding carbon fibers, potassium titanate whiskers and magnesium borate whiskers according to a proportion, and mixing and stirring for 12-18min until the mixture is uniform to obtain the halide-containing brake material; and placing a steel backing and the brake material into a mold for compression molding, placing the mold into an oven for heating and curing after demolding, and finally machining to obtain an automobile brake pad or a rail transit vehicle brake pad. The friction material of the automobile brake pad and the rail transit vehicle brake pad is particularly suitable for a brake disc with a dual material being aluminum alloy, the porosity of a microporous material is large, the hardness is low, and damage to the brake disc is reduced. The microporous material and the aluminum alloy brake disc are high in heat dissipation speed, the working temperature of a friction pair can be reduced, and the friction pair can bear larger load.

The invention discloses a ternary lithium nickel cobalt manganese oxide material and a preparation method, and the preparation method comprises the following steps: by taking cobalt-manganese oxide asa template, a cobalt source and a manganese source, nickel acetate hexahydrate and lithium carbonate as a nickel source and a lithium source, and deionized water as a solvent, synthesizing cobalt manganese oxalate by adopting a hydrothermal method, and calcining in air to obtain a cobalt-manganese oxide precursor; and finally, adding a nickel source and a lithium source, performing uniform mixingthrough ball milling, introducing oxygen, and performing sintering in a tubular furnace to obtain the ternary lithium nickel cobalt manganate material. The ternary lithium nickel cobalt manganese oxide material has a large specific surface area, is conducive to full contact and ion transmission between an electrolyte and an active substance, increases reaction active sites, overcomes the disadvantage of poor large current discharge capability of the ternary lithium nickel cobalt manganese oxide material, greatly improves electrochemical performances when used as a lithium ion battery positiveelectrode material, and improves the cycling stability and the rate capability.

The invention discloses a preparation method and application of a lead-free A4MnBi2X12 (A=Li, Na, K, Rb, Cs, CH3NH3<+>, CH4N2<+>, or C8H11N<+>; and X=Cl, Br, or I) double perovskite material. An A4MnBi2X12 single crystal is obtained by performing cooling crystallization in halogen acid by using AX, Bi2O3, and MnX2 as raw materials, and the single crystals with different sizes can be obtained by adjusting the cooling rate. The synthetic method has good repeatability and easy operation, the obtained single crystal has the characteristics of good crystallinity, no toxicity and stability, and thematerial obtained by regulating the type of halogen has excellent luminous properties, and can be used in the fields of scintillators, X-ray detection, luminescence, lighting and photocatalysis / photoelectrocatalysis.

The invention discloses a preparation method of a TADF multicolor OLED device. The method comprises the following steps: S1, preparing a light emitting layer solution: weighing a certain amount of 4CzIPN and DMAC-DPS samples, and preparing 4mg / mL solutions by using chloroform as a solvent; measuring out the two solutions by using a micropipettor, mixing the two solutions, stirring the mixed solution for a certain time to make the mixed solution uniform, and obtaining mixed solutions with different volume ratios; S2, cleaning ITO glass; S3, spin-coating the ITO glass with a light emitting layer; and S4, transferring an ITO substrate to a vacuum chamber, vapor-plating a layer of TPBI as an electron transport layer, then vapor-plating Ca, and finally, vapor-plating Ag as an electrode. The method has high light quantum yield. No host material is used, and cost is saved. Because of the adoption of a common low-toxicity organic solvent, the pollution and the harm to the environment are reduced, and the preparation process is green and environment-friendly.

The invention relates to a method for large-scale preparation of graphene and two-dimensional boron nitride crystal materials. The method is characterized in that in the presence of NH3BH3 as a ball milling assistant, a solid mixture having a mass ratio of an inorganic layered material to NH3BH3 of 1: 0.5-5 is subjected to ball milling treatment by a mechanical ball milling technology so that high-efficiency peeling on the inorganic layered material such as graphite and hexagonal boron nitride is realized; and the products are washed and filtered for NH3BH3 removal and the filtration products are dried so that the single-layer or multiple-layer graphene and two-dimensional boron nitride crystal materials are obtained. The graphene and two-dimensional boron nitride crystal materials have high purity and complete structures. The method has the advantages of easy acquisition of raw materials, operation simpleness, safety and low cost and is suitable for large-scale preparation of the graphene and two-dimensional boron nitride crystal materials.

The invention discloses a rare-earth oxide supported platinum and ruthenium bimetal hydrophobic catalyst and a preparation method and application thereof and solves the problem that the prior art haslow catalytic performance and poor economic performance. The rare-earth oxide supported platinum-ruthenium bimetal hydrophobic catalyst is characterized in that a rare-earth oxide that supports platinum and ruthenium is used as an active component, polytetrafluoroethylene is used as a binder and hydrophobic medium, and a metal fiber felt is used as a supporter; in the rare-earth oxide that supports platinum and ruthenium, platinum supporting capacity is 0.1-10% by weight, and atom ratio of ruthenium to platinum is 1:(1-10); the weight ratio of the rare-earth oxide that supports platinum and ruthenium to the polytetrafluoroethylene is 1:(1-4); in the catalyst by 100% mass, the metal fiber felt accounts for 30-70%. The design herein is scientific, the preparation method is simple, and the catalyst of the invention has excellent catalytic performance and good economic performance.

The invention discloses a multi-dimensional data acquisition application method and system, and belongs to the technical field of information. According to the method, the comprehensive sensor is usedfor collecting the distance information, the depth image information and the RGB image information, the collected information is integrated into multi-dimensional data to be analyzed and processed, and whether the distance between the user and the mobile terminal is within a preset range or not is judged; if the user is in the preset range, the method includes extracting depth image information and RGB image information, and obtaining gender, age and posture data of the user according to the information; judging whether a human-computer interaction behavior exists between the user and the mobile terminal or not according to the depth image information and the RGB image information; and if the user and the mobile terminal do not have the human-computer interaction behavior, enabling the mobile terminal to play pre-stored commodity information matched with the gender, age and posture data of the user. The comprehensive sensor is composed of a distance sensor, an RGB camera and a depth camera. The method and system are convenient to configure, can improve the consumption experience, and is suitable for commercial popularization and application.

The invention discloses a solvated composite solid electrolyte, a preparation method and application thereof. The method uses a solution casting method to prepare vinylidene fluoride-co-hexafluoropropylene as the main phase, doped with polyethylene oxide and Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 The composite solid electrolyte film, and then soak the composite solid electrolyte film in the solvated ionic liquid, and finally obtain the composite solid electrolyte. The composite solid electrolyte prepared by the invention has the same ion conductivity as the liquid electrolyte, good interface compatibility, certain mechanical strength, good electrochemical stability and good safety. The preparation process is simple and can be used in large-scale production. When applied to a lithium battery, a high-safety lithium battery can be constructed, and the cycle life and cycle performance of the battery can be guaranteed.

The invention relates to capacitor carbon and a preparation method thereof. According to the main technical scheme, the preparation method of the capacitor carbon comprises the following steps: immersing a crushed and sieved biomass raw material into an additive solution for immersion treatment, and then drying the biomass raw material subjected to immersion treatment to obtain an additive-impregnated biomass raw material, the additive being a compound containing nitrogen and phosphorus; calcining the additive-impregnated biomass raw material impregnated in a protective atmosphere, raising the calcining temperature to 100-350 DEG C, preserving heat for a first set time, raising the calcining temperature to 400-1000 DEG C, and preserving heat for a second set time to obtain a calcined product; and washing and drying the calcined product to obtain the capacitor carbon. The four effects of carbon sequestration, carbonization, activation and doping are achieved through the calcination one-step method. The technology has the advantages that raw materials are low in price and easy to obtain, the technological process is short, the operation is easy, the cost is low, the yield is high, and the performance is good. Industrial production and commercial application of the capacitor carbon can be achieved easily.