493 results about "Metal salts" patented technology

The present application relates to a kind of spheroidal doped ceria and its preparation method and application, the preparation method includes the following steps: after cerium salt, doped metal salt, solvent, acidic reagent and precipitant are mixed, hydrothermal reaction is carried out, and the precipitate is obtained, the precipitate is calcined, and the spheroidal doped ceria of the present application is obtained;The doped metal salt includes praseodymium salt and / or neodymium salt.The present application uses cerium salt and praseodymium salt and / or neodymium salt as doped metal salt as raw material, by the design of mixing process and reaction procedure and the selection of preparation process, the preparation of spheroidal doped ceria is realized, the doped ceria of nanometer level particle is obtained, and its appearance is regular and particle size is uniform, and, the preparation method used in the present application is simple, reaction time is short, and can be used for mass production.

The application discloses a nitrogen-doped carbon-coated three-metal catalyst and a preparation method and application thereof, and belongs to the field of catalyst preparation and application. The method adopts sucrose, melamine and metal salt as low-cost raw materials, and forms an alkaline environment with the assistance of sodium hydroxide. In the environment, melamine is hydrolyzed into cyanuric acid, which is complexed with sucrose metal ions to form a stable supramolecular aggregate precursor containing metal, and then realizes effective encapsulation of the metal in a high-temperature pyrolysis process. The synergistic effect of the three metal elements Co, Ni and Zn significantly improves the performance of the catalyst, so that CoNiZnO@NC-600 not only exhibits high conversion rate (98.4%) and selectivity (99%) in the reaction of hydrogenation conversion of furfural to furfuryl alcohol, but also has excellent cycle stability, thereby providing a new efficient method for the hydrogenation conversion of biomass-derived compounds.

This invention relates to an air electrode material and its preparation method. The preparation method includes: using metal salts of Ce, Pr, La, Ba, and Sr, metal salts of Co, and a fluorine source as raw materials, and preparing a fluorine-containing perovskite precursor according to a stoichiometric ratio; pretreating the precursor and then sintering it to obtain a composite powder; the composite powder includes a fluorine-containing perovskite main phase and a fluorine-containing CeO2 nanophase; pulverizing and sieving the composite powder to obtain air electrode powder; the fluorine-containing perovskite main phase is an A-site high-entropy perovskite oxide; the fluorine-containing CeO2 nanophase is precipitated through the self-assembly of some Ce elements during sintering; the fluorine-containing CeO2 nanophase is dispersed inside the main phase grains or at grain boundaries, and forms a strongly coupled heterogeneous interface with the main phase. This invention solves the technical problems of poor surface exchange activity, bulk diffusion transport, and long-term stability of existing air electrodes.

This invention relates to the field of secondary battery technology, specifically to a silicon-carbon composite material, its preparation method, and a lithium-ion battery. The preparation method of the silicon-carbon composite material includes: reacting an organometallic framework ZIF-8 in a saturated metal salt solution and then evaporating and crystallizing it to obtain a metal salt-coated organometallic framework Salt@ZIF-8; pulverizing a silicon-copper alloy precursor and the Salt@ZIF-8 at a mass ratio of 1:0.05-0.7 to obtain a mixed powder; and subjecting the mixed powder to a pyrolysis reaction and acid leaching treatment to obtain the silicon-carbon composite material. The silicon-carbon composite material obtained by this invention exhibits excellent structural stability and electrochemical performance, effectively mitigating the volume expansion of the silicon anode and improving cycle performance and rate performance.

This invention provides a desulfurizing agent, its preparation method, and its application. The preparation method of the desulfurizing agent includes: mixing a first structure-directing agent, a second structure-directing agent, a first silicon source, and a first aluminum source in water, then adding ZSM-5 molecular sieve seed crystals for uniform dispersion, hydrothermal crystallization, and calcination to obtain ZSM-5 molecular sieve nanocrystals; mixing a solution of ZSM-5 molecular sieve nanocrystals, a binder, a pore-expanding agent, and an active metal salt, extruding and molding, and calcining to obtain the desulfurizing agent; wherein the first structure-directing agent is selected from quaternary ammonium bases and / or quaternary ammonium salts, and the second structure-directing agent is selected from quaternary ammonium bases; the cation charge density of the first structure-directing agent is higher than that of the second structure-directing agent. The preparation method of the desulfurizing agent provided by this invention uses a dual-structure-directing agent and seed crystals to synergistically induce and regulate the crystallization process, thereby effectively controlling the mesoscopic structure of the desulfurizing agent and significantly improving its desulfurization activity.

The application discloses a Ru-RE2O3 catalyst and a preparation method and application thereof, and the Ru-RE2O3 catalyst comprises a rare earth metal oxide RE2O3 shell and Ru inside. The catalyst is prepared from a carbon sphere carrier, a ruthenium salt and a rare earth metal salt through first calcination and second calcination. The first calcination is used for converting the ruthenium salt and the rare earth metal salt into corresponding oxides, and the second calcination is carried out under a reducing protective gas atmosphere, and the ruthenium oxide is selectively reduced, so that the Ru-RE2O3 catalyst with a core-shell structure is finally obtained. Compared with existing catalysts, the catalyst of the application forms a heterojunction between ruthenium and rare earth oxides and is uniformly loaded on the surface of the carbon sphere, the utilization rate of active sites is high, and the catalyst exhibits excellent water electrolysis catalytic activity, good mass transfer efficiency and stable cycle performance.

The present application relates to a kind of heating cigarette reconstituted tobacco low-temperature flavor releasing heat-conducting glue and its preparation method, it is related to tobacco manufacturing technical field.Heat-conducting glue includes the following weight parts of component: low-temperature catalytic material 2~6 parts, heat-conducting filler 0.8~1.2 parts and matrix glue 100 parts;Wherein, low-temperature catalytic material is organic metal salt modified titanium-silicon molecular sieve, heat-conducting filler is silane coupling agent modified metal oxide powder.Low-temperature catalytic material can effectively catalyze tobacco aroma precursor material cracking in lower temperature range, significantly reduce the activation energy of aroma release, thereby improve aroma release efficiency, solve the problem of traditional reconstituted tobacco aroma release deficiency, tasteless.Using the metal oxide modified by silane coupling agent as heat-conducting filler, while improving the overall thermal conductivity of reconstituted tobacco, effectively reduce the interface thermal resistance between heat-conducting filler and tobacco matrix, make heat transfer more efficient and uniform, enhance the stability of smoke release.

The application relates to the technical field of platinum catalysts, and particularly discloses an anti-yellowing platinum catalyst capable of prolonging the curing time and a preparation method thereof. The platinum catalyst comprises a platinum metal compound, an alkenyl-containing siloxane compound, an alkaline metal salt, an organic solvent and a catalyst carrier; wherein the mass ratio of the platinum metal compound, the alkenyl-containing siloxane compound, the alkaline metal salt and the organic solvent is 1:(8-20):(1.2-3):(6-20). The platinum catalyst has the advantages of being capable of prolonging the curing time and having the anti-yellowing performance, and has a wide application scenario.

The application discloses an adsorbent for removing trace metal ions in alcohol ether solvents and a preparation method and application thereof, and belongs to the field of chemical separation technology. The adsorbent is a zirconium-based metal organic cage material with discrete structure formed by coordination self-assembly of a zirconium metal salt and a nitrogen-containing polycarboxylic acid organic ligand. The adsorbent has specific ion nanowells, and can form a strong limited synergistic effect with metal ions. The adsorbent is suitable for adsorption and separation of trace metal ions in various alcohol ether solvents, and has high metal ion adsorption and removal efficiency.

A method for preparing a coal-based porous graphene composite ternary material belongs to the field of materials preparation technology. The method is as follows: raw material refinement; carbonization of coal raw materials; mixing of activator and product; activation of the mixture; cleaning and drying of the activated product to obtain coal-based porous graphene material; mixing of ternary metal salts; mixing of the mixture with a lithium source to obtain a precursor material; sintering of the precursor material; cleaning and drying of the product to obtain the ternary material; composite material preparation: This invention uses low-cost coal as a porous carbon precursor, and effectively prepares coal-based porous graphene material through a method of carbonization followed by activation, which is suitable for mass production; the potassium-based activator simplifies the process and simultaneously catalyzes the graphitization process, promoting the synergistic development of pores and graphite microcrystalline structure; the coal-based porous graphene is combined with the ternary material, and a high-specific-energy hybrid capacitor cathode composite material is prepared based on the bulk surface synergistic energy storage mechanism.

The application discloses a kind of manganese-rich precursors and preparation method and positive electrode material thereof, and is related to lithium ion battery material technical field.The preparation method includes that metal salt solution, precipitant and complexing agent are simultaneously added to reaction kettle by metering pump and carry out coprecipitation reaction, and hydrogen peroxide solution is pumped into reaction system by metering pump in stages during reaction process and carries out liquid phase micro-oxidation treatment.The prepared precursor is spherical secondary particle, and is composed of nanoscale particle and interwoven sheet-shaped primary particle.The method utilizes the direct and uniform oxidation effect of hydrogen peroxide in liquid phase, and in-situ constructs stable high-valence manganese oxide on the surface of precursor, so that the prepared positive electrode material simultaneously has excellent electrochemical kinetics and structural stability.

The application relates to a ternary metal nanocatalyst and a preparation method and application thereof, and relates to the field of catalytic chemistry. The specific steps of the method are as follows: soluble iron salt, soluble nickel salt and soluble aluminum salt are added into deionized water, and a carbon carrier is added as a substrate and is subjected to ultrasonic treatment. An alkaline solution containing sodium carbonate and sodium hydroxide is added dropwise into the prepared metal salt solution under vigorous stirring. The metal salt suspension is aged; the obtained solution is centrifuged, the solid is collected and vacuum dried and ground. The activated carbon loaded iron-nickel-aluminum ternary metal nanocatalyst can realize the complementary advantages among multiple components, and the synergistic mechanism makes the iron-nickel-aluminum catalyst exhibit better ammonia production rate and selectivity than single metal components in a neutral environment, and can be used for electrocatalytic nitrate reduction to prepare ammonia.

The application relates to the technical field of organic synthesis, and discloses a preparation method of a hydrocarbyl carboxylic acid, which comprises the following steps: mixing a hydrocarbyl aldehyde, an oxidizing agent and a first metal salt to perform pre-reaction, and then mixing the reaction system obtained through the pre-reaction with a second metal salt to perform reaction; wherein the first metal salt is selected from at least one of a sodium salt, a potassium salt, a calcium salt, a lithium salt, an iron salt and a copper salt; and the second metal salt is selected from at least one of a zinc salt, a manganese salt, a cobalt salt, a palladium salt and a silver salt. The preparation method of the hydrocarbyl carboxylic acid can greatly shorten the reaction time, and improve the raw material conversion rate, the target product selectivity and the target product purity of the aldehyde oxidation acid reaction.

To provide a composition containing a novel ingredient that can bring about at least an acceptable level of sebum control in keratinous substances such as skin. [Solution] The present invention relates to a composition comprising (a) (i) at least one inorganic oxide, preferably a metal oxide, more preferably an alkaline earth metal oxide, and (ii) at least one fatty acid or a salt thereof, preferably a saturated fatty acid or a salt thereof, more preferably a metal salt of a saturated fatty acid, and (b) at least one second powder selected from particles containing silica and hydroxyapatite. The composition according to the present invention can provide at least an acceptable level of sebum control to keratinous substances such as skin.

The application discloses an oligonucleotide hydrogel and a preparation method and application thereof, and comprises the following steps: sequentially adding oligonucleotide and PBS buffer into a metal salt solution to obtain a mixed solution; placing the mixed solution in a shaking table and oscillating and incubating; after incubation, centrifuging, discarding the supernatant and reserving the precipitate; resuspending the precipitate by adding deionized water, centrifuging, discarding the supernatant and washing to obtain the hydrogel; the application only needs single-stranded oligonucleotide, has no special requirements on the sequence composition and structure of the oligonucleotide, does not need special design, can be assembled with divalent and trivalent metal ions, has a simple process, is easy to operate, and can wrap biological enzymes in the hydrogel, realizes enzyme immobilization and recycling.

This invention provides a method for preparing a lithium-rich manganese-based cathode material, comprising the following steps: D1: Lithium nitrate, manganese nitrate, nickel nitrate, and cobalt nitrate are dissolved in deionized water at a molar ratio of 1.2:0.54:0.13:0.13 to prepare a metal salt solution. 1.2 Mn 0.54 Ni 0.13 Co 0.13 O2 is co-precipitated with a precipitant and a complexing agent in a solvent to generate a lithium-rich manganese-based core; D2: The lithium-rich manganese-based core is mixed with an interfacial bridging agent in an organic solvent and stirred for 2-4 hours. After drying, an interfacial bridging agent layer is formed on the lithium-rich manganese-based core; D3: The material obtained after step S2 is mixed successively with three metal salt solutions of different concentrations, and different NCM shells are coated on the outside of the interfacial bridging agent layer; D4: After high-temperature sintering, a lithium-rich manganese-based cathode material is obtained. In this invention, the LMRO core, Li2ZrO3 bridging agent, and gradient NCM shell work synergistically to greatly enhance the inhibition of lattice oxygen migration, improve structural stability, and thus significantly improve the first-time efficiency and suppress the cumulative gas release.

The object of the present invention is to provide a polyester block copolymer resin composition that exhibits excellent flexibility and transparency, has excellent abrasion resistance, and can be processed into molded articles such as injection molded articles, extruded articles, films, fibers, nonwoven fabrics, and foams. [Solution] The present invention provides a polyester block copolymer resin composition comprising 100 parts by mass of a polyester block copolymer (A) containing 10 to 50% by mass of a high-melting-point crystalline polymer segment (a) consisting of crystalline aromatic polyester units and 90 to 50% by mass of a low-melting-point polymer segment (b) consisting of aliphatic polyether units and / or aliphatic polyester units, 0.01 to 3.0 parts by mass of an alkali metal salt of an aliphatic carboxylic acid (B), and / or 0.2 to 20 parts by mass of an ethylene copolymer (C) having a carboxylic acid metal base in its side chain, and 0.01 to 5.0 parts by mass of a modified wax (D).

The present application relates to a kind of rotary kiln device of overhauling slag and lithiumite / cell powder calcination, it is related to rotary kiln related technical field, including supporting platform, feeding equipment, built-in cylinder, sliding groove, cylinder, built-in groove, anti-conclusion component, convex drag reduction component, extrusion type gas blowing component, cleaning component, the present application can solve in the mixed calcination process of overhauling slag and lithiumite / cell powder, fluoride in overhauling slag, cryolite and metal salt in cell powder, under high temperature environment of 800-1000 ℃, complex physical and chemical reaction occurs easily, form low melting point eutectic liquid phase, these liquid phase material has extremely high viscosity, surface tension and adhesion, will firmly adhere to kiln wall, only rely on gravity, these melts can only extremely slowly "creep" or "slip" on kiln wall surface, its root firmly adheres to the surface of heat-resistant layer, when kiln body rotates and it enters high temperature zone again, these melts will be re-baked hard, cause ring problem.

The application relates to a preparation method of Mg and W double-element co-modified ultra-high-nickel binary positive electrode material, in particular to Mg and W double-element co-modified high-nickel binary positive electrode material. 0.01 (Ni x Mn y )W z O2, wherein x the value of x is 0.9-0.95, y the value of y is 0.05-0.1, z the value of z is 0.003-0.006. The method comprises the following steps: (1) preparing a nickel and manganese metal salt aqueous solution, a mixed alkali aqueous solution and a reaction bottom solution; (2) respectively adding the metal salt aqueous solution and the mixed alkali aqueous solution into the bottom solution at a certain flow rate to perform a constant-temperature precipitation reaction in a nitrogen atmosphere; (3) after the precipitation reaction is completed, cooling to room temperature, filtering, washing and drying the precursor; (5) after the dried precursor is mixed with metered lithium salt, magnesium oxide and tungsten trioxide, high-temperature solid-phase reaction is performed in an oxygen atmosphere to obtain the Mg and W double-element co-modified ultra-high-nickel binary positive electrode material. The Mg and W double-element co-modified high-nickel binary positive electrode material prepared by the method has a specific capacity of 179.19 mAh / g after 100 cycles at a 0.5C rate, a capacity retention rate of 93.1% or above, and good cycle and rate performance.

The invention relates to hair conditioning compositions with a combability-improving effect, containing cetyl palmitate in combination with a conditioning agent selected from cationized polygalactomannans from Senna spp., in particular from Senna tora or Senna obtusifolia, and ethylenediamine-N,N'-disuccinic acid (salts) or at least one alkali metal salt or ammonium salt of this acid.

The application belongs to the technical field of marine functional polymer antifouling materials, and discloses an acrylic metal salt resin containing silicone and a capsaicin derivative structure, a preparation method and application thereof. The acrylic metal salt resin, silicone and a compound containing the capsaicin derivative structure are combined, the viscosity of the resin is synergistically controlled by using various functional acrylate monomers, the hydrophobic silicone chain segment is effectively integrated with the capsaicin derivative structure which has antibacterial activity and hydrophilic properties, a novel acrylic metal salt resin containing silicone and the capsaicin derivative structure is prepared, the resin has multifunctional antifouling properties such as hydrophilic / hydrophobic regulation, enhanced antibacterial activity and self-polishing renewal, the raw materials are low in price, and the obtained product has excellent antibacterial performance and more than 6 months of real sea antifouling capacity.

The present application relates to the technical field of groundwater monitoring, and in particular to a porous material for groundwater monitoring, and a preparation method therefor and a use thereof. The preparation method for the porous material provided in the present application comprises the following steps: mixing hydrophobically modified sodium alginate, biochar, a mineral material, a pore-forming agent, and a stabilizer to form a mixed solution; and dropwise adding the mixed solution into a metal salt solution, and performing heat treatment to obtain a porous material. In the present application, the hydrophobically modified sodium alginate used as a capsule wall and the mineral material used as a support structure are compounded with the biochar to form a composite material in the metal salt solution, and during the heat treatment, the composite material forms, under the action of the pore-forming agent, a porous material having multiple channels. The time of retention of the porous material in water can be prolonged by using the characteristic of low solubility of the hydrophobically modified sodium alginate in water, and the porous material can adsorb microorganisms in water by using the adsorption performance of the biochar; in addition, the porous material provides more active sites for the attachment of microorganisms.

The present invention relates generally to the field of energy storage devices, and more specifically, to solid electrolyte compositions and methods for producing said solid electrolyte compositions. In one aspect of the invention, the method includes the steps of: mixing a silicon precursor comprising at least one alkoxysilane and an ionic liquid electrolyte comprising an ionicly conductive compound, a solvent, and a metal salt to form a liquid mixture, wherein the solvent comprises an amount of water sufficient to hydrolyze at least a portion of the silicon precursor; adding a halogen-containing organosilicon compound to the liquid mixture; hydrolyzing at least a portion of the silicon precursor by contacting the halogen-containing organosilicon compound with the silicon precursor; reacting the halogen-containing organosilicon compound with the hydrolyzed portion of the silicon precursor to form a gel mixture; and curing, drying, and / or aging the formed gel mixture to form a solid electrolyte composition.

The present application relates to the field of interlayer film of laminated glass, and particularly relates to an ionic safety interlayer film of laminated glass and a preparation method thereof. The components of the interlayer film include ethylene methacrylic acid copolymer metal salt, coupling agent, initiator, trimethylolpropane trimethacrylate, grafting monomer, chain extender and molecular weight regulator; the preparation method includes the following steps: mixing the ethylene methacrylic acid copolymer metal salt, initiator and grafting monomer in a high-speed mixer to obtain a first mixture; mixing the first mixture, coupling agent, trimethylolpropane trimethacrylate, chain extender and molecular weight regulator in a high-speed mixer to obtain a second mixture; and inputting the second mixture into a screw extruder to extrude the ionic safety interlayer film of laminated glass. The ionic safety interlayer film of laminated glass has low raw material cost and high tensile strength, and is suitable for laminated glass of high safety demand facilities.

A method for preparing magnetic lignin-carbon composite materials for electromagnetic shielding belongs to the field of biomass carbon-based electromagnetic functional composite material preparation technology. The method involves in-situ polymerization to coat lignin powder with a polymer-based magnetic particle inducer layer such as polyaniline to obtain an intermediate; subsequently, a uniform and stable loading of Fe, Co, and Ni magnetic particles is achieved through in-situ growth of MOF particles or metal salt solution modification and impregnation processes; finally, high-temperature carbonization yields magnetic lignin-carbon. This invention effectively solves the technical problems of easy aggregation of magnetic particles and weak interfacial bonding by utilizing the abundant active sites provided by the inducer layer, enabling the resulting composite material to possess both the electrical conductivity loss of carbon-based materials and the hysteresis loss of magnetic particles, forming a highly efficient magnetic-electric synergistic loss mechanism. The magnetic lignin-carbon of this invention achieves an average shielding effectiveness of up to 77.5 dB in the 2-18 GHz band, showing broad application prospects in fields such as electromagnetic protection of electronic equipment and military stealth.

This invention provides a wide-temperature-range, long-life flexible zinc-lithium hybrid ion battery hydrogel electrolyte, its preparation method, and its application. The hydrogel electrolyte comprises a polymeric hydrogel framework and an electrolyte phase adsorbed and filled within the framework. The polymeric hydrogel framework is an interpenetrating double network structure formed by sodium alginate and polyacrylamide. The electrolyte phase comprises a mixed solvent, an electrolyte salt, and functional additives. The mixed solvent consists of water and a co-solvent. The electrolyte salt is zinc trifluoromethanesulfonate and lithium trifluoromethanesulfonate. The functional additives are alkali metal salts or rare earth metal salts. This invention, through the synergistic design of a zinc-lithium dual-salt system, an organic co-solvent, and trace amounts of rare earth functional additives, simultaneously achieves low-temperature antifreeze, dendrite suppression, and side reaction suppression in a zinc-lithium hybrid ion battery, thereby significantly improving the battery's wide-temperature-range cycle life and other electrochemical performance.

This invention provides a method for preparing an ultra-stable metal-doped aluminum fluoride catalyst and its application in photocatalytic carbon dioxide reduction, belonging to the field of catalytic materials. The invention first involves drying and grinding an aluminum-containing compound, then mixing it with a metal salt and introducing active metal sites and the key element fluorine through high-energy mechanical ball milling in a polytetrafluoroethylene (PTFE) ball mill jar. Subsequent heat treatment transforms the aluminum-containing precursor into a highly stable aluminum fluoride support through in-situ fluorination, successfully constructing an atomically dispersed metal-doped aluminum fluoride catalyst. This catalyst exhibits high activity and selectivity in CO₂ photoreduction and demonstrates excellent physical and chemical stability under extreme acid-base and high-temperature oxidizing environments. The preparation process of this invention is simple and environmentally friendly, breaking through the bottleneck of traditional catalysts' easy deactivation under extreme conditions, and providing a new path for developing highly stable photocatalytic materials.

This invention provides a one-dimensional silver nanostructure / metal hydroxide composite material, its preparation method, and its application. The preparation method includes: adding a one-dimensional silver nanostructure, a metal salt, and an additive to a solvent and stirring to disperse them evenly; adding an acidic or alkaline reagent under stirring conditions to adjust the pH of the solution, causing the metal ions in the solution to convert into metal hydroxide precipitates, obtaining a one-dimensional silver nanostructure-metal hydroxide suspension; then performing solid-liquid separation, washing and drying the obtained solid product to obtain a one-dimensional silver nanostructure / metal hydroxide composite powder; wherein the metal hydroxide is aluminum hydroxide, zinc hydroxide, magnesium hydroxide, iron hydroxide, manganese hydroxide, copper hydroxide, nickel hydroxide, or cobalt hydroxide, and the one-dimensional silver nanostructure is silver nanowire or silver nanoribbon. The resulting composite material uses metal hydroxide as a carrier and separator, inhibiting the drying and agglomeration of silver nanowires from the source, exhibiting high conductivity and good redispersibility, thus improving conductivity.

The application relates to a preparation method and application of a cobalt-zinc MOF / carbon nanotube composite negative electrode material, and steps are as follows: (1) uniformly dispersing multi-walled carbon nanotubes in N,N-dimethylformamide to obtain an MWCNT organic dispersion liquid; (2) sequentially adding cobalt-zinc metal salts into the MWCNT organic dispersion liquid to obtain a bimetallic MWCNT organic dispersion liquid; (3) dissolving 2,5 thiophene dicarboxylic acid in DMF to obtain a ligand solution; (4) mixing the bimetallic MWCNT organic dispersion liquid and the ligand solution, carrying out hydrothermal treatment, centrifugation, vacuum drying, and obtaining a CoZn-TDC / MWCNT composite material; and (5) annealing the CoZn-TDC / MWCNT at high temperature to obtain a carbon nanotube reinforced cobalt-zinc MOF derivative. The bimetallic organic framework is in-situ compounded with the MWCNT to obtain a composite material with three-dimensional continuity, high conductivity and mechanical support, and the problem of poor rate and cycle performance caused by poor conductivity and serious structure pulverization of traditional MOF derivative materials is solved.