171 results about "Graphite anode" patented technology

The invention discloses a calcining carbon removal-supercritical expansion stripping method for regenerating graphene from graphite of a waste lithium battery, and belongs to the field of lithium battery recovery and nano material preparation. Comprising the following steps: treating the waste lithium battery to obtain waste lithium battery positive and negative electrode mixed powder, and then roasting to obtain battery powder; leaching the battery powder in a nitric acid solution to obtain purified graphite slag; the method comprises the following steps: mixing graphite slag with supercritical gas fluid, treating, quickly releasing pressure to normal pressure, and separating to obtain graphene. According to the method, on the basis of interlayer structure characteristics of the waste graphite negative electrode, organic matters and amorphous carbon are removed through multi-stage calcination, a supercritical N2 / CO2 mixed fluid permeation and pressure relief expansion synergistic stripping technology is combined, and low-damage dissociation is achieved through graphite microcracks. According to the method, physical stripping and liquid nitrogen shock cooling strengthening are coupled, and the obtained graphene sheet layer is high in integrity and few in structural defect and can be directly used for manufacturing conductive composite materials and energy storage devices.

The lithium ion battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte, the negative electrode comprises a negative electrode active material, the negative electrode active material comprises graphite and an amorphous carbon layer coating the surface of the graphite, the thickness of the amorphous carbon layer is X [mu] m, and the non-aqueous electrolyte comprises a first additive, the first additive comprises a compound A with a structure of a chemical formula 1, R1 and R2 are independently selected from hydrogen, a nitrile group, a carbonyl group, a C1-C12 alkyl group, a C2-C12 alkenyl group, a C2-C12 alkynyl group and a C3-C12 cyclic alkyl group, the mass percent of the compound A in the non-aqueous electrolyte is a%, 0.1 < a < 20, and X and a meet the condition that X / a is more than 1 and less than 10. According to the invention, the compound A is introduced into the non-aqueous electrolyte as an additive, and the fast charge cycle performance of the lithium ion battery can be effectively improved by regulating and controlling the relationship between the thickness of the amorphous carbon layer and the content of the compound A. # imgabs0 #

The invention discloses a hydrogen-fluorine atom doped graphdiyne material and a preparation method thereof, and relates to the technical field of carbon materials. According to the method, halogenated aromatic hydrocarbon and an alkynyl compound are taken as raw materials, a palladium catalyst and a copper catalyst are taken as a catalytic system, and an acetylenic bond of the alkynyl compound and the halogenated aromatic hydrocarbon are subjected to a Sonogashira coupling reaction to obtain the hydrogen-fluorine-doped graphite alkynyl material. The graphdiyne material provided by the invention has a large pore diameter, multiple active sites and high thermal stability and chemical stability, so that the hydrofluorine-doped graphdiyne material has excellent electrochemical energy storage property, shows reversible capacity of 1155mAh g <-1 > under 0.05 Ag <-1 > when being used as a negative electrode of a lithium ion battery, and can be used as a negative electrode of the lithium ion battery. And the density is almost 3 times that of a commercial graphite negative electrode material (300-350mAh g <-1 >). The application of the graphdiyne material in the field of electrochemical energy storage is obviously promoted.

A method for separation, purification and regeneration of spent lithium iron phosphate electrode materials is disclosed, the present disclosure removes the anode material graphite by selective water dissolution and separation of the anode binder, and achieves the leaching of lithium ions in the graphite anode material and serves as a lithium supplement agent; the surface modification and activation of spent lithium iron phosphate cathode materials are performed by high purity oxygen low-temperature plasma ashing technology, while removing organic matter to achieve the dissociation of lithium iron phosphate particles, the surface carbon content of spent lithium iron phosphate electrode materials is effectively controlled to achieve the objective of deep purification and carbon removal, moreover, the internal crystal structure of the electrode material is activated, the migration channel of lithium ion is activated, and the subsequent lithium supplement efficiency is greatly improved.

The invention relates to the technical field of electro-catalytic material synthesis, in particular to a preparation method of a nano TiO2 (at) AC (at) GPs electro-catalytic anode material, which comprises the following steps: firstly, depositing an amorphous carbon layer AC on the surface of graphite flake GPs by adopting a chemical vapor deposition method to obtain an AC (at) GPs composite material; cTAB is dissolved in a methanol / deionized water mixed solution and stirred evenly to obtain a solution A, a titanium sulfate solution is added into the solution A to obtain a precursor solution B, the precursor solution B and the AC (at) GPs composite material are mixed and then subjected to a hydrothermal reaction, after the reaction, a sample is washed, dried and roasted, and the nano TiO2 (at) AC (at) GPs electrocatalytic anode material is obtained. The preparation process is simple and efficient, the obtained nano TiO2 (at) AC (at) GPs electro-catalytic anode material has excellent electro-catalytic activity and cycling stability, the problems that a traditional graphite anode material is poor in electro-catalytic performance and the like are solved, and the nano TiO2 (at) AC (at) GPs electro-catalytic anode material has wide industrial application prospects.

The invention discloses a preparation method of a coated graphite negative electrode material. The preparation method comprises the steps of mixing, granulating and coating, graphitizing and the like. Pelleting and coating are carried out before the graphitization process, unstable components in asphalt are decomposed and release small molecules in the asphalt in the hot atmosphere of oxygen, oxidative dehydrogenation is carried out at the same time, oxygen molecules in the oxygen and asphalt molecules are crosslinked to form stable macromolecules in a mode of forming C = O bonds and C-O-C bonds, the asphalt molecules are difficult to graphitize, and the graphitization performance of the asphalt is improved. An ordered structure is not easy to form in the graphitization process, the hard carbon characteristic is achieved, a coating layer formed after coating is of a two-layer structure, the coating layer is composed of a hard carbon outer layer and a hard carbon-graphite transition phase, the binding force between a graphite inner core and the hard carbon coating layer can be improved due to the existence of the hard carbon-graphite transition phase, the hard carbon-graphite composite material is more suitable for high-rate charging and discharging, and meanwhile, the hard carbon-graphite composite material has a good application prospect. And coating and carbonization are not needed after graphitization, so that the preparation time is shortened, the preparation efficiency is improved, the preparation energy consumption is greatly reduced, and the preparation cost is effectively reduced.

The sealing structure of the present invention and the continuous reaction treatment equipment for graphite-based anode materials / phosphates and ternary cathode materials of lithium-ion batteries. The sealing structure includes sealing devices arranged at each main air leakage point of the rotary reactor. The sealing device includes a first solid sealing group, a gas sealing group, and a second solid sealing group arranged circumferentially along the rotary reactor. The first solid sealing group, the gas sealing group, and the second solid sealing group are arranged in sequence in the axial direction at the air leakage point and form an axial seal with each other. The coating carbonization / sintering equipment includes a feeding mechanism, a rotary reactor, and a discharging mechanism. The feeding mechanism and the discharging mechanism are docked at the corresponding feeding end and discharging end of the rotary reactor, and the above-mentioned sealing structure is provided at the docking positions of the rotary reactor with the feeding mechanism and the discharging mechanism. This equipment has the advantages of simple and reliable structure and good sealing performance.

The application provides a graphite ladle production powder intelligent weighing and compensation control method, relates to the graphite product production control technical field, and comprises the following steps: obtaining target formula parameters, raw material state data and discharging process data corresponding to each powder raw material in a graphite ladle blank batching weighing process, the graphite ladle production powder intelligent weighing and compensation control method, by obtaining the target formula parameters, raw material state data and discharging process data corresponding to each powder raw material, generating a weighing compensation collaborative control index, forming self-adaptive weighing control parameters and self-adaptive compensation control parameters matched with each powder raw material, realizing the collaborative identification and self-adaptive regulation and control of the discharging behavior, deviation formation mechanism and compensation demand in the graphite ladle blank batching weighing process, and improving the control precision, process stability and control adaptability of the powder weighing process.

The invention provides a graphite negative electrode material, a preparation method thereof and an electrochemical device. The preparation method comprises the following steps: (1) pretreating a coke material to obtain aggregate with D50 of 4-9 [mu] m, and the tap density of the aggregate is greater than or equal to 0.5 g / cm < 3 >; (2) mixing the aggregate and the liquid asphalt to obtain a mixed and kneaded material, and performing granulation treatment on the mixed and kneaded material to obtain a granulation product; and (3) carrying out graphitization treatment and carbon coating on the granulation product to obtain the graphite negative electrode material. Through cooperation of the small-particle-size aggregate, the liquid asphalt and carbon coating, the disadvantages of poor morphology, low compaction, low compaction and too low capacity of the traditional small-particle-size aggregate are broken through, and the rapid charging performance is effectively improved; and the method is more suitable for a fast-charging electrochemical device.

The application provides a method for promoting selective reduction of Fe3O4 in copper slag by carbon-containing anode through electrochemistry, which comprises the following steps: weighing a certain amount of dry and finely ground copper slag and placing the copper slag in a crucible, transferring the crucible with the copper slag into a leaner electric furnace, and heating the copper slag to a specific reaction temperature at a speed of 10 DEG C / min to obtain molten copper slag; then inserting a pretreated graphite anode and an inert high-melting point metal cathode, and inputting a certain voltage to perform electrochemical regulation; after power-off, the sample is placed for a period of time, and the sample is cooled to room temperature with the furnace; and the obtained sample has copper matte in the lower layer and molten slag tailings in the upper layer. The application uses a carbon-containing anode to replace coal powder in combination with electrochemical regulation, which can not only make the carbon-containing anode penetrate into the interior of the copper slag and increase the reducible depth of the molten slag, but also ensure the continuous work of the carbon-containing anode by the intervention of the electrochemical method, thereby solving the problem of low utilization rate of coal powder in the reduction of copper slag in industry.

The application provides a method for treating organic phosphorus in tanning wastewater by electrocatalytic ozone treatment with a modified foam iron electrode as a cathode, and the method comprises at least one pair of electrodes; the electrodes comprise a modified foam iron cathode and a modified graphite felt anode, the modified foam iron cathode is modified 40ppi foam iron; the method for treating organic phosphorus in tanning wastewater is as follows: the modified foam iron cathode and the modified graphite felt anode are placed in a reactor, the cathode and the anode are connected to a direct current power supply; the wastewater containing tetramethylphosphonium sulfate to be treated is added into the reactor, and the pH value of the wastewater is controlled in the range of 5-9; the mixed gas of ozone and oxygen is continuously introduced into the reactor, and the flow rate of the mixed gas of ozone and oxygen is controlled to be 0.1-0.5L / min per liter of wastewater; the direct current power supply is started to supply power to the graphite anode and the modified foam iron cathode, and the tetramethylphosphonium sulfate in the wastewater is continuously oxidized into orthophosphate salt between the electrodes; the crystallized orthophosphate salt is separated from the wastewater, and the organic phosphorus component in the tanning wastewater is removed.

This invention discloses a porous microcrystalline graphite anode material, its preparation method, and its application. The preparation method includes: thoroughly contacting microcrystalline graphite with an alkaline solution and then drying it, followed by a first calcination in an inert atmosphere to obtain a first porous microcrystalline graphite with etched grain end faces; impregnating the first porous microcrystalline graphite with an alkaline solution under vacuum pressure, drying it, and then calcining it again in an inert atmosphere to obtain a second porous microcrystalline graphite with etched grain end faces and interior; repeating the aforementioned operations, with each operation using a lower concentration of alkaline solution and a higher pressure, to obtain the porous microcrystalline graphite anode material. The preparation method of this invention, by repeatedly using an alkaline solution to impregnate the microcrystalline graphite under vacuum pressure, allows the alkali to penetrate into the pore structure and etch into the particle interior at high temperatures. The resulting porous microcrystalline graphite anode material has a pore structure that facilitates rapid lithium-ion transport, significantly improving the material's charge-discharge rate performance.

The invention discloses a graphite negative electrode material flow guide and moisture removal mechanism which comprises a drying bin body, a rotating plate, an exhaust pipe, an end rotating cover, a power motor and an exhaust pipe. A plurality of exhaust pipes are distributed in the graphite negative electrode material, the exhaust pipes are communicated with external airflow, moisture discharge of the graphite negative electrode material can be improved, the rotating plate, the exhaust pipes and the end rotating cover are driven by the power motor to synchronously rotate, and therefore the multiple exhaust pipes can uniformly move in the graphite negative electrode material, and the moisture discharge rate of the graphite negative electrode material is increased. Meanwhile, an exhaust pipe is mounted on a power cavity and conveys airflow to an airflow cavity of a rotating plate, the airflow is conveyed to a plurality of exhaust pipes through the airflow cavity, and rapid dehumidification can be performed through dehumidification holes of the exhaust pipes, so that the graphite negative electrode material is fed into a drying cavity to be stacked and stored; the inside of the graphite negative electrode material can be effectively prevented from being affected with damp, and the structural design is ingenious.

A method for restoring electrochemical activity and cycling stability to spent graphite anode material for a lithium-ion battery includes exposing powdered graphite anode material to boric acid to form borated material, then sintering the borated material. The processing removes dead lithium from the bulk structure and applies boron doping to surfaces of the graphite material.

The present invention relates to the field of carbon materials, and discloses a coal-based graphite anode material, a preparation method thereof and an application. The coal-based graphite anode material has a crystallite size L in the c-axis direction obtained by XRD c and a crystallite size L in the a-axis direction a satisfying the following conditions: 30 nm ≤ L c ≤ 70 nm, formula (I); 50 nm ≤ L a ≤ 120 nm, formula (II); the graphitization degree of the coal-based graphite anode material satisfies the following conditions: 85 ≤ graphitization degree ≤ 93, formula (III). The coal-based graphite anode material has high charge-discharge capacity, high first Coulomb efficiency and excellent rate performance, and its preparation method has simple process and low cost.

The invention discloses a material mixing method for graphite negative electrode material production, and relates to the technical field of graphite negative electrode material mixing. The method specifically comprises the following steps: S1, screening a graphite negative electrode material, and weighing for later use; s2, putting the weighed graphite negative electrode material for later use into material mixing equipment for stirring and material mixing treatment; wherein the material mixing equipment in the step S2 comprises a supporting frame plate and a mixing tank, two material distributing tanks are fixedly mounted on the supporting frame plate, the bottom ends of the two material distributing tanks fixedly communicate with communicating pipes, and the ends, away from the material distributing tanks, of the communicating pipes fixedly communicate with the mixing tank. According to the mixing method for graphite negative electrode material production, the rotating, lifting and position changing functions of the stirring rods in the mixing assembly are combined together, so that the stirring blades can fully and uniformly mix materials at multiple positions and depths, and the mixing effect and efficiency of the mixing method for graphite negative electrode material production are effectively improved.

The present disclosure provides an anode material and a battery. The anode material includes graphite, an interior and / or a surface of the graphite has pores, the anode material has an oil absorption value of O mL / 100 g, a pore volume of V cm3 / kg, a specific surface area of S m2 / g, and a powder porosity of Φ%, where 50≤O*V*S≤391, and 40≤Φ≤58. According to the anode material and the battery provided by the present disclosure, a reaction space capable of performing an effective lithium ion de-intercalation in the anode material is relatively sufficient, improving the high-rate charging-discharging performance of the graphite anode material.

This application belongs to the field of alkali metal ion battery technology, and more specifically, relates to a wide-temperature-range electrolyte suitable for alkali metal ion batteries and its application. The wide-temperature-range electrolyte for alkali metal ion batteries provided in this application includes an electrolyte salt, an organic solvent, and a film-forming additive, further including a monoglyceride and a bridging solvent for dissolving the monoglyceride; the interaction between the monoglyceride and the organic solvent can inhibit the reductive decomposition of the organic solvent and suppress the co-intercalation effect between the organic solvent and alkali metal ions. By adding a monoglyceride and a bridging solvent for dissolving the monoglyceride, and through formulation optimization, this application effectively solves the problem of incompatibility between organic solvents and graphite anodes, preparing an electrolyte with wide-temperature-range performance and good compatibility with graphite anodes, ensuring stable battery operation within a wide temperature range of -40℃ to 60℃.

The present application provides graphite anode particles, a preparation method thereof, a battery, and an energy storage device. The graphite anode particles of the embodiments of the present application comprise multiple layers stacked sequentially, each of which has a plurality of openings, each of which extends through a portion of the layers, and the size of each opening gradually decreases from the opening of the opening toward the bottom wall of the opening.

This invention discloses a precise grading device for graphite anode particles, belonging to the field of lithium battery material processing technology. It includes a grading box with a base mounted at its lower end. Multiple discharge ports are located on one side of the grading box. Multiple mounting frames are movably installed inside the grading box, with one end of each frame movably inserted into the discharge port. Rotating blocks are fixedly mounted on both sides of one end of each frame, and these rotating blocks are rotatably connected to the inner wall of the discharge port. A grading screen is detachably installed inside each mounting frame. This invention, through the synergistic effect of the separating components, achieves stable vibration and auxiliary screen cleaning of the grading screen, effectively solving problems such as easy screen clogging, unstable vibration, low grading accuracy, and inconvenient maintenance in traditional grading equipment. This ensures efficient, precise, and stable grading of graphite anode particles, providing standard-compliant graphite anode raw materials for lithium battery production and improving product consistency and battery performance.

The utility model provides a production system for an artificial graphite negative electrode material. The production system comprises green coke crushing and shaping equipment, asphalt crushing equipment, coating equipment before granulation, granulation equipment, depolymerization equipment, coating equipment before carbonization, finished product mixing equipment and finished product screening and demagnetizing equipment which are communicated with one another, the asphalt crushing equipment comprises an asphalt feeding station, a first rotary iron remover and a jet mill, the first rotary iron remover is arranged between the asphalt feeding station and the jet mill, and the jet mill is communicated with the coating equipment before granulation; the finished product screening and demagnetizing equipment comprises a semi-finished product screen, a plurality of electromagnetic iron removers and a post-iron-removal temporary storage bin, the semi-finished product screen is communicated with the finished product mixing equipment, and the plurality of electromagnetic iron removers are arranged between the semi-finished product screen and the post-iron-removal temporary storage bin in series; the post-iron-removal temporary storage bin is further provided with magnetic substance detection equipment, and the post-iron-removal temporary storage bin is further communicated with the semi-finished product screen. The content of magnetic substances in the finished product can be reduced, and the performance of the graphite negative electrode material is improved.

This invention relates to the field of battery materials technology and discloses a high-capacity graphite anode material and its preparation method. The preparation method includes the following steps: raw material selection and pretreatment, exfoliation and activation treatment, elemental doping modification, in-situ polymerization coating, carbonization treatment, crushing and sieving. By crushing, classifying and pretreating the waste graphite raw material with two-step acid washing (hydrochloric acid to remove metals and hydrofluoric acid to remove silicon), impurities in the raw material are removed, providing a high-purity graphite base for subsequent modification. Combined with liquid-phase exfoliation and high-pressure homogenization treatment, the number of graphite layers is reduced and the specific surface area is increased. At the same time, low-temperature plasma activation introduces active sites on its surface, enhancing the chemical reactivity of graphite. This lays a solid structural foundation for subsequent elemental doping and polymerization coating, thereby ensuring the stability and excellent performance of the final material.

The utility model discloses a production device capable of reducing unit consumption of a graphite anode, and relates to the technical field of rare earth production equipment. According to the technical key points, the device comprises an electrolytic furnace, a plurality of graphite anode plates are mounted in the electrolytic furnace, a nitrogen cover is arranged at the top of the electrolytic furnace, a gas seal unit is arranged in the nitrogen cover, and the gas seal unit can form a horizontal gas curtain at an opening in the top of the electrolytic furnace by utilizing nitrogen; and gas collecting equipment is arranged on the outer side of the nitrogen cover and is used for pumping away gas escaping from the upper part of the electrolytic furnace. The air seal unit additionally arranged at the furnace opening in the top of the electrolytic furnace can spray nitrogen in the nitrogen cover to form a nitrogen air curtain, so that air is prevented from making contact with a graphite anode plate above electrolyte, and the effects of reducing the oxidation rate of the graphite anode plate and prolonging the service life of the graphite anode plate are achieved.

The present invention belongs to the technical field of lithium-ion batteries and relates to a current collector and a graphite anode bipolar lithium-ion battery, comprising a first metal coating, a first plastic film, a second plastic film and the second metal coating, wherein a first end of the first plastic film is connected to one side of the second metal coating, a first end of the second plastic film is connected to the other side of the second metal coating, the second metal coating covers the lower surface of the first and second plastic films, the second metal coating is in contact with the lower surface of the first metal coating, the second end of the first plastic film protrudes from the first and second metal coatings, and the second end of the second plastic film protrudes from the first and second metal coatings; in the current collector of the present application, the first plastic film and the second plastic film on both sides can be used for packaging between the current collectors; the bipolar battery produced is lighter in weight and has no risk of oxidation and lithium insertion.

This invention provides a modified graphite anode material, its preparation method, and a battery. The modified graphite anode material includes a graphite matrix material and C-F bonds modified at intrinsic defects in the graphite matrix material. The C-F bonds include ionic C-F bonds and covalent C-F bonds. The preparation method includes: liquid-phase mixing and coating the graphite material to be modified with a fluorine-containing compound solution to obtain a coated material; heat-treating the coated material under a protective atmosphere, during which the fluorine-containing compound decomposes to generate a fluorine-containing gas, which modifies the graphite material to be modified, thus obtaining the modified graphite anode material. In this invention, by modifying the surface defects of graphite with ionic C-F bonds, the intrinsic defects of graphite are neutralized, improving the electrochemical performance of the graphite anode material.

This invention discloses a semi-circular lithium metal electrolytic cell, belonging to the field of electrolytic cell technology. It includes a shell with interconnected semi-circular and square cavities inside. The square cavities gradually narrow from the connection points of the semi-circular cavities, and the ends of the square cavities furthest from the semi-circular cavities are connected by arc-shaped corners. The cathode is located inside the square cavity of the electrolytic cell, and the anode is installed at the top of the electrolytic cell and extends into the cathode cavity. This invention relies on the magnetic-thermal field generated by the graphite anode group within the square cavity to drive the molten salt electrolyte to generate a flow field. The varying spacing of the square cavities within the inner shell drives the lithium metal liquid to flow into the semi-circular cavity, while the arc-shaped corners prevent any residual lithium metal liquid.

This invention discloses a polymer coating material and its preparation method, as well as its application in artificial graphite anode materials. The polymer is synthesized from monomers, comonomers, and reaction auxiliaries under the action of an initiator. By controlling the amount of reaction auxiliaries added, the molecular weight of the polymer is controllable, and the side functional groups are adjustable. This polymer can uniformly coat the surface of artificial graphite, forming an artificial solid-state electrolyte interface, optimizing the lithium-ion transport path, and constructing a stable protective layer for the artificial graphite anode material. It can effectively improve the initial coulombic efficiency of the artificial graphite anode material, achieving an initial coulombic efficiency ≥91.8%.

The invention relates to the technical field of new energy storage, in particular to a bromine-modified high-rate graphite negative electrode material and a preparation method thereof. The bromine-modified high-rate graphite negative electrode material comprises graphite and a specific bromine modifier, and in the bromine-modified high-rate graphite negative electrode material and the preparation method thereof, the bromine-modified high-rate graphite negative electrode material is obtained by adding the specific bromine modifier and optimizing a preparation process. When the negative electrode material is applied to the potassium ion battery, graphite and a specific bromine modifier can form a stable composite structure, and high-magnification performance is realized. The material is simple in preparation process and easy to operate; raw materials are easy to obtain, reaction equipment is relatively simple, and the application prospect is relatively great.

This invention relates to the field of graphite anode material technology, specifically disclosing a surface-coated natural graphite, its preparation method, and its applications. The surface-coated natural graphite comprises a negatively charged natural spherical graphite core, which is coated with a positively charged micelle solution. A negatively charged MOF is grown on the positively charged micelles through electrostatic adsorption and crystal orientation induction. After curing and drying, a hard carbon source is coated on top, and high-temperature calcination is performed to prepare a natural spherical graphite core, an onion-like carbon framework and a nanocrystalline intercalation structure, an electrostatically coupled intermediate layer, and a hard carbon shell. The graphite anode material of this invention achieves optimized ion diffusion channels, optimized conductive networks, and expanded lithium intercalation sites. This structure significantly improves cycle life and specific capacitance, making it suitable for long-life lithium batteries.

This invention discloses a method for preparing rare earth metals by electrolytic oxides using a fluoride system, belonging to the field of rare earth metal preparation technology. This invention modifies graphite anodes used in rare earth molten salt electrolysis. It improves oxidation and corrosion resistance, reduces anode wear, lowers replacement frequency, and increases production efficiency, yielding high-purity, low-carbon rare earth metal lanthanum. A three-dimensional network framework material is constructed using Prussian blue self-assembly and SiC is deposited to obtain a composite framework material. During pre-calcination with graphite and other materials, the derivatives optimize the crystal structure and interfacial bonding, enhancing the strength of the pre-shaped anode material and ensuring the integrity and performance stability of the electrode structure. Thirdly, the pre-shaped anode material is impregnated with a specific impregnation solution, altering the gas diffusion path and resistance, inhibiting oxidation reactions, and high-temperature sintering generates substances that fill the pores, forming a dense microstructure. Simultaneously, the compounds formed by phosphoric acid enhance cohesion and adhesion, improving oxidation and molten salt corrosion resistance, and extending the service life of the graphite anode.