80 results about "Lithium doping" patented technology

The invention relates to the technical field of lithium ion batteries, and provides a lithium cobalt oxide composite material which comprises a core body and a coating layer coating the core body, the core body comprises O2-phase lithium cobalt oxide, and the O2-phase lithium cobalt oxide is doped with an element M; the coating layer comprises an oxide containing an N element; the M element comprises at least one of Al, Mg, W, Ti, La, Zr, Ni, Mn and Y; n comprises at least one of Al, Mg, Y, W, Nb, La, Zr, Ti and P. The lithium cobalt oxide composite material provided by the invention is used as a positive electrode material of a lithium ion battery, and the cycling stability of the lithium ion battery under high potential is improved.

The invention belongs to the technical field of solid-state electrolytes, and particularly discloses a modified PEO-based composite solid-state electrolyte, a preparation method thereof and a solid-state battery. The modified PEO-based composite solid electrolyte comprises the following components: lithium-doped indium gallium phosphate, PEO and a lithium-based electrolyte, wherein the chemical formula of the lithium-doped indium gallium phosphate is InxGa (1-x) PO4: Li, and x is more than or equal to 0.3 and less than or equal to 0.8. The indium gallium phosphate has an amorphous structure and shows excellent lithium ion transmission performance and conductivity; after lithium ions are further embedded into the indium gallium phosphate with the amorphous structure, the lithium ion conductivity of the indium gallium phosphate can be further improved, and more active sites are provided for transmission of the lithium ions; the lithium-doped indium gallium phosphate is added into the PEO-based solid electrolyte as an inorganic filler, so that the mechanical strength, the ion transmission capability and the conductivity of the PEO-based solid electrolyte can be effectively improved.

The invention discloses a lithium manganese iron phosphate positive electrode material coated with a carbon layer based on a CVD (chemical vapor deposition) method and a preparation method, the preparation method comprises the following steps: forming a uniform carbon coating layer on a lithium manganese iron phosphate precursor based on a CVD coating process, mixing the lithium manganese iron phosphate precursor with the uniform carbon coating layer and a lithium salt, and carrying out co-sintering, and the lithium salt can permeate through the carbon layer to form a lithium-doped uniform carbon coating layer. According to the method, the coating effect is improved, the problem that uniform coating cannot be formed on the surface of the precursor in a traditional carbon coating process is effectively solved, precipitation of trivalent manganese ions at a high temperature can be slowed down, the problem that the capacity exertion is reduced due to the fact that an amorphous carbon layer formed by a CVD cracking coating process affects lithium ion deintercalation is solved, and the performance of the lithium ion battery is improved. The safety and the service life of the battery are improved.

The invention relates to the technical field of lithium ion batteries, in particular to a lithium-doped silicon-carbon composite material, a preparation method thereof, a negative plate and a lithium ion battery. The preparation method of the lithium-doped silicon-carbon composite material comprises the following steps: carrying out reduction reaction and activated pore-forming on a mixed material containing a carbon source, an organic pore-forming agent, a lithium supplement agent and a reducing agent to obtain lithium-doped porous carbon; performing first deposition on the lithium-doped porous carbon and mixed gas containing an inorganic lithium compound and an organic lithium compound; carrying out second deposition on the material obtained after the first deposition and silane gas to obtain a lithium compound doped silicon carbon precursor material; and mixing the lithium compound doped silicon carbon precursor material, an organic metal compound, asphalt and an organic solvent, performing spray drying, and then performing carbonization. According to the preparation method, the initial efficiency and the power performance of the silicon-carbon composite material can be improved.

The invention discloses a porous carbon-coated graphite composite material for an energy storage battery and a preparation method of the porous carbon-coated graphite composite material. The porous carbon-coated graphite composite material consists of inner core graphite and lithium heteroatom-doped porous carbon coated on the surface of the inner core graphite, the preparation method comprises the following steps: preparing an organic template agent solution, adding resin and an amino organic lithium compound, uniformly mixing, adding a hydrogen peroxide oxidizing agent, reacting, filtering, and activating at high temperature to obtain lithium-doped porous carbon; the preparation method comprises the following steps: adding lithium-doped porous carbon into an organic solvent, then adding graphite and an organic aluminum-based compound, uniformly dispersing, dropwise adding an amino solution, carrying out chemical reaction at the temperature of 50-120 DEG C, filtering, and carrying out vacuum drying and high-temperature carbonization on obtained filter residues to obtain the lithium-doped porous carbon composite material. The cycle performance and the storage performance of the graphite can be improved.

The invention discloses a lithium-doped silicon-carbon composite material, a preparation method and application, and belongs to the technical field of preparation of lithium ion battery negative electrode materials. According to the lithium-doped silicon-carbon composite material disclosed by the invention, metal lithium is doped in porous carbon, and nano silicon is deposited on the surface of the porous carbon, so that the resistivity of the composite material is reduced; the rate capability of the lithium ion battery is improved; the surface of the nanometer silicon is coated with carbon twice through passivation gas and carbon source gas, so that the defects of the surface of the nanometer silicon are reduced, and the nanometer silicon is prevented from being in direct contact with an electrolyte, thereby reducing the side reaction of a negative electrode interface of the lithium ion battery, reducing the decomposition of the electrolyte, reducing the gas production and improving the first efficiency.

The invention provides a lithium-doped porous carbon material, a lithium-doped silicon-carbon composite material, a preparation method and application of the lithium-doped porous carbon material and the lithium-doped silicon-carbon composite material, and a lithium ion battery, and belongs to the technical field of carbon materials. The preparation method comprises the following steps: mixing a lithium source, a first phenolic compound and a first solvent, and carrying out modification treatment to obtain modified product feed liquid; mixing the modified product feed liquid, an aldehyde compound, a second phenolic compound and a second solvent, and carrying out addition-polycondensation reaction to obtain lithium modified phenolic resin; the lithium modified phenolic resin is subjected to pyrolysis treatment and activation treatment in sequence, and the lithium-doped porous carbon material is obtained. Silicon is deposited on the lithium-doped porous carbon material provided by the invention to obtain a lithium-doped silicon-carbon composite material, and the lithium-doped silicon-carbon composite material has relatively high initial coulombic efficiency and relatively good rate capability and cycle performance when being used as a negative electrode material of a lithium ion battery.

The embodiment of the invention provides an alpha-Ga2O3 / Li doped NiO vertical heterojunction detector and a preparation method and application thereof, and relates to the technical field of semiconductor materials. The preparation method of the detector comprises the following steps: S1, preparing a gallium source precursor aqueous solution, and enabling the gallium source precursor aqueous solution to epitaxially grow an alpha-Ga2O3 film layer on a substrate through an atomization chemical vapor deposition technology; s2, preparing a nickel source precursor aqueous solution, adding a lithium source into the nickel source precursor aqueous solution, and epitaxially growing a Li-doped NiO film layer on the alpha-Ga2O3 film layer by using the lithium-doped nickel source precursor aqueous solution through an atomization chemical vapor deposition technology; and S3, depositing a first electrode layer on the Li-doped NiO film layer by adopting a magnetron sputtering technology, and depositing a second electrode layer on the Li-doped NiO film layer by adopting a magnetron sputtering method or depositing the second electrode layer on the alpha-Ga2O3 film layer by adopting an electron beam evaporation technology. According to the invention, the Mist-CVD technology is adopted for the first time to successfully prepare the alpha-Ga2O3 / Li-doped NiO vertical heterojunction, and the alpha-Ga2O3 / Li-doped NiO vertical heterojunction is applied to a solar-blind ultraviolet photoelectric detector.

The invention discloses a preparation method of a low-cost lithium manganate material, and belongs to the technical field of new energy lithium battery materials. The method comprises the following steps: (1) pretreatment: putting manganous-manganic oxide, lithium carbonate and doped metal elements into equipment, and fully mixing to obtain a mixture; and (2) sintering: calcining the mixture in a rotary furnace. And (3) post-treatment: crushing the cooled material, sieving, and removing iron to obtain the lithium manganate. According to the invention, low-cost manganous-manganic oxide is used as a synthesis raw material, a rotary furnace is used as a sintering carrier, and a dynamic synthesis mode is adopted, so that the sufficient reaction of the materials is facilitated, the yield is not limited, the sintering time and the sintering temperature are greatly reduced, the energy consumption is reduced in a disguised manner, the yield is improved, and meanwhile, the consistency of the product is improved.

The invention belongs to the technical field of lithium batteries, and relates to a preparation method of a double-coated silicon-carbon composite material, an electrode and a lithium battery, the method comprises the following steps: soaking a lithium dopant and an MOF material in a first organic solvent, adding a template agent and a catalyst, reacting, filtering, and freeze-drying to obtain a gel complex; in an inert atmosphere, heating the gel complex to a first preset temperature, introducing carbon dioxide according to a preset flow rate, cooling, adding into mixed acid, soaking, pickling, and drying in vacuum to obtain a porous carbon composite material; adding liquid silane, a phosphorane derivative, a dispersing agent, the porous carbon composite material and a silane coupling agent into a second organic solvent, performing spray drying, and performing primary carbonization to obtain a silicon-carbon precursor material; dissolving the resin in a third organic solvent, adding an ionic conductor and a silicon-carbon precursor material, carrying out secondary carbonization, cooling to a second preset temperature, and introducing a reducing gas to obtain a double-coated silicon-carbon composite material; the conductivity is improved, the interface stability is improved, and the full-charge expansion is reduced.

The invention discloses a lithium manganese iron phosphate positive electrode material and a preparation method thereof, and belongs to the technical field of lithium batteries. Through an integrated process of magnetic field-gradient coprecipitation + in-situ lithium doping-spray drying-segmented calcination, Fe3O4 magnetic seeds are added into a mixed metal solution, magnetic field induction is combined, pH is precisely controlled to be gradually reduced from 9 to 8 in cooperation with a triammonium citrate solution, and meanwhile, a magnetic seed-carbon layer dual conductive network is constructed; compared with the prior art, the preparation method has the advantages that the precursor dispersity, grain orderliness and purity of the lithium manganese iron phosphate positive electrode material are improved, the Li < + > migration path and electron conduction efficiency are optimized, the 5C discharge specific capacity of the material reaches 121-132mAh / g, the 500-time cycle capacity retention rate reaches 90.3-94.1%, and the first charge-discharge efficiency reaches 95.5-97.2%.

Provided are a negative electrode active material which includes negative electrode active material particles which includes a silicon oxide (SiOx, 0<x≤2); and at least one lithium silicate selected from Li2SiO3, Li2Si2O5, and Li4SiO4 in at least a part of the silicon oxide. A signal generated in a region of 200 to 600 cm−1 according to a Raman spectrum is subjected to deconvolution into three peaks, which are set to peak A, peak B, and peak C from lowest to highest of an absolute value of a wavenumber. Also disclosed are a method of preparing the same, and a negative electrode and a lithium secondary battery including the negative electrode active material.

This invention relates to the field of lithium-ion battery technology, specifically to a composite electrode material and its preparation method. The preparation method includes the following steps: using tin, red phosphorus, and lithium salt in a molar ratio of 3.5–3.9:3:0.5–0.1 as raw materials, ball milling is performed in an inert gas to obtain lithium-doped tin phosphide material; the lithium-doped tin phosphide material and carbon nanotube material are mixed uniformly, and calcined under a protective atmosphere to construct a carbon conductive network on the surface of the lithium-doped tin phosphide material to obtain modified tin phosphide material; the modified tin phosphide material is mixed uniformly with additives to obtain the composite electrode material. This invention achieves multi-dimensional modification of tin phosphide anode material through stepwise synergistic processing, solving the technical problem of decreased electrochemical performance of existing tin phosphide anode materials due to volume expansion and lithium loss.

The present invention discloses a manganese-based polyanion positive electrode material and its preparation method and application, belonging to the technical field of sodium ion battery positive electrode materials. The present invention discloses a positive electrode material, the chemical formula of which is Na x Li y MnV 0.5 Ti 0.5 (PO4)3, where 3≤x≤3.5, 0≤y≤0.5, and x+y=3.5. Due to the introduction of lithium ions, the electron orbital overlap between the alkaline metal ions and the oxygen atoms is weakened, thereby making the oxygen atoms and the surrounding Mn 2+ This enhanced Mn-O bond suppresses the Mn-O bond generated by Mn during charge and discharge. 3+ (Mn 2+ Jahn-Teller distortion caused by oxidation at high potential); this manganese-based polyanion positive electrode material can significantly improve the cycle stability and rate performance of the material while ensuring the sodium storage capacity, and its sodium storage electrochemical performance is significantly better than that of pure phase materials without lithium doping.

The application provides a double-coating lithium iron phosphate positive electrode sheet, a preparation method and application thereof. The preparation method comprises the following steps: mixing modified large-particle lithium iron phosphate, modified small-particle lithium iron phosphate, a conductive agent, a binder and a solvent to obtain a first slurry and a second slurry; adopting double-layer slot extrusion coating to coat the first slurry on the surface of a current collector and coat the second slurry on the surface of the first slurry; and drying and rolling to obtain the double-coating lithium iron phosphate positive electrode sheet; the modified large-particle lithium iron phosphate is doped with Ti and Nb, and the modified small-particle lithium iron phosphate is doped with Mg and Al. The application adopts a multi-element doped positive electrode material combined with a double-layer coating preparation method to avoid the shortcomings of LFP materials, improve the rate performance, high-temperature performance and cycle performance of LFP, and has the advantages of simple preparation process and easy industrial production. The prepared positive electrode material and the secondary battery using the same have excellent comprehensive performance, and have a wide application prospect in the field of power batteries.

The application discloses a first main group metal gradient doped Cs2NaBiCl6 perovskite material and a preparation method and application thereof, and belongs to the technical field of photocatalytic material for preventing and treating air pollution. The preparation method comprises the following steps: dissolving cesium chloride, sodium chloride, lithium chloride and bismuth chloride in hydrochloric acid and stirring uniformly; placing the mixture into a reaction kettle to perform hydrothermal reaction; after the reaction is completed, centrifuging, washing and drying are performed to obtain Cs2Na 1‑ x Li x BiCl6, wherein x is 0.1-0.5. The lithium-doped cesium-sodium-bismuth-chlorine double perovskite photocatalyst has stronger photocatalytic reduction capacity, and can greatly improve the activity of the lithium-doped cesium-sodium-bismuth-chlorine double perovskite in photocatalytic reduction of carbon dioxide, and the generation rate of carbon monoxide can reach 10.25 mu mol per hour ‑1 ·g ‑1 .

The invention belongs to the field of energy storage, and particularly relates to a secondary battery and an electronic device, and the discharge performance is further improved by adjusting the components of a positive electrode and an electrolyte in the secondary battery. Specifically, the secondary battery provided by the invention comprises a positive electrode, a negative electrode and an electrolyte, the positive electrode comprises a positive electrode current collector, and a titanium dioxide material layer and a positive electrode material layer which are arranged on the positive electrode current collector; the positive electrode material layer comprises lithium iron phosphate and lithium manganate, and the electrolyte comprises ethylene glycol di (propionitrile) ether; the lithium iron phosphate is doped with a boron element, and the lithium manganate is doped with a copper element and a tin element. The discharge performance of the battery can be improved.

The present invention relates to the technical field of lithium battery materials, and specifically discloses a lithium cobaltate doped nickel cobalt manganese ternary cathode material, a preparation method thereof and an application. The preparation method comprises the following steps: mixing lithium cobaltate, nickel cobalt manganese ternary precursors with at least two different particle size distributions, lithium carbonate and a first dopant, sintering, and crushing to obtain a first-sintered product; mixing the first-sintered product with a first surface coating material, sintering, and crushing to obtain a second-sintered product; mixing the second-sintered product with a second surface coating material, sintering, and crushing to obtain the lithium cobaltate doped nickel cobalt manganese ternary cathode material. By means of the first-sintering process, the present invention uniformly dopes the lithium cobaltate material into the nickel cobalt manganese ternary cathode material, effectively protects the layered structure of the nickel cobalt manganese ternary cathode material, reduces the mixing of nickel and lithium ions, and improves the cycle stability and safety performance of the material.

The invention relates to the technical field of lithium ion battery positive electrode materials, and particularly discloses a positive electrode lithium supplement agent and a preparation method and application thereof. The positive electrode lithium supplementing agent is of a core-shell structure, an inner core is doped lithium-rich lithium cobalt oxide, an outer shell is spinel lithium cobalt oxide, and the doped lithium-rich lithium cobalt oxide is specifically Li6CoO4 doped with Al, Mg and Zr; the preparation method comprises the following steps: preparing and uniformly mixing an aluminum source, a magnesium source, a zirconium source, a lithium source and a cobalt source according to a specific stoichiometric ratio, and then carrying out high-temperature solid-phase sintering and crushing in an inert atmosphere; preparing and uniformly mixing the one-step product, a cobalt source and a lithium source according to a specific stoichiometric ratio, and then carrying out low-temperature solid-phase sintering in an inert atmosphere; and crushing and sieving. The preparation method of the positive electrode lithium supplementing agent is suitable for large-scale and industrial production, and after the positive electrode lithium supplementing agent is applied to a high-voltage lithium cobalt oxide positive electrode and forms a battery cell with a silicon-based negative electrode, the battery cell has smaller gas production rate and better cycling stability, and the first-week irreversible capacity loss of the silicon-based negative electrode is effectively compensated.

The invention belongs to the technical field of electrode materials, and particularly relates to a preparation method and application of an alkali metal ion doped sodium vanadyl fluorophosphate carbon composite material. According to the invention, three methods of surface carbon coating modification, morphology modification and metal ion doping modification are combined, and the prepared lithium-doped sodium vanadyl fluorophosphate or potassium-doped sodium vanadyl fluorophosphate is used as an aqueous zinc ion battery positive electrode material, so that the battery can obtain excellent rate capability and stable cycle performance; and meanwhile, the structural stability of the battery in the long-cycle process can be ensured. The microwave hydrothermal assisted calcination method which is rapid in reaction, low in cost and capable of achieving a large scale is adopted, the reaction time can be greatly shortened, and the production efficiency can be improved. Meanwhile, the NVOPF is compounded with a nitrogen-carbon material with high electronic conductivity, and metal elements are doped at sodium element sites, so that the nitrogen-carbon compounded aqueous zinc ion battery positive electrode material with high magnification and long cycle stability can be obtained.

The invention discloses a modified porous carbon composite material and a preparation method thereof, and the preparation method comprises the following steps: adding porous carbon and a heteroatom compound into a silver salt solution, and carrying out a hydrothermal reaction to obtain silver salt / heteroatom compound doped porous carbon; and depositing lithium salt in the silver salt / heteroatom compound doped porous carbon through an electrochemical deposition method, carbonizing and activating to obtain the modified porous carbon composite material. The obtained material utilizes silver doping and lithium doping to improve the electronic and ionic conductivity of the porous carbon material, reduces defects, improves the first efficiency and diffusion coefficient thereof, and is applied to the silicon carbon material to improve the rate capability and the first efficiency thereof.

The present invention discloses a high-rate and high-nickel cobalt-free cathode material, a preparation method thereof, and an application thereof. The chemical formula of the cathode material is LiNi x Mn 1‑x‑y‑z M y N z O2, M is one or more of Al, Zr, Y, W, Nb, Ce, Ti, Mg, Sr, B, P or Si, N is an MBene material coating layer, 0.5

The present invention relates to a nickel monoxide as a hole-conducting material and a perovskite solar cell containing the hole-conducting material as a hole-conducting layer, as well as a method for producing the nickel monoxide. The hole-conducting nickel monoxide (NiO) according to the invention x The composition is characterized by the addition of magnesium or of magnesium and lithium together as dopants. The mole fractions of the dopants are in the range of 2% to 4% for magnesium alone and 2% to 4% for magnesium together with 0.75% to 1.25% for lithium, and in particular 2.5% to 3.5% for magnesium and 0.9% to 1.1% for lithium. The NiO doped according to the invention x is of increased stability. A perovskite solar cell, which consists of a NiO doped with magnesium and lithium. xThe inventive method for producing a NiO-doped layer, comprising a hole-conducting layer, exhibits increased stability and improved efficiency. x is based on spray pyolysis in an oxidizing atmosphere. In the process according to the invention, the applied layer is doped with NiO. x First annealed and then cooled, after which further processing or storage is possible.

The application belongs to the technical field of refractory materials, and provides a tundish castable and a preparation method thereof.The tundish castable comprises the following components in parts by weight: bauxite clinker 54-57 parts, coke 23.5-25 parts, kyanite powder 3.8-4.2 parts, alpha-alumina micropowder 3-3.2 parts, high-aluminum cement 4.7-5.2 parts, silica ash 6.8-7.3 parts and lithium-doped magnesium oxide nano powder 2.7-3 parts.The application increases the amount / content of silica ash, reduces the apparent porosity of the prepared sample after 1400 DEG C heat treatment, and further improves the strength.

The invention belongs to the technical field of partial discharge ultraviolet detection, and particularly relates to a nickel oxide / zinc gallate heterojunction solar-blind ultraviolet photoelectric detector and application thereof. The invention discloses a nickel oxide / zinc gallate heterojunction solar-blind ultraviolet photoelectric detector, and the detector comprises an aluminum oxide substrate; the zinc gallate epitaxial layer grows on the aluminum oxide substrate through metal organic chemical vapor deposition; the lithium-doped p-type nickel oxide layer grows on the zinc gallate epitaxial layer through a pulse laser deposition technology; and the titanium / gold metal electrode layer is deposited on the lithium-doped p-type nickel oxide layer. The device has a high rectification ratio of 106, an ultralow dark current of 0.1 pA under a bias voltage of 6V, an excellent detection rate of 7.1 * 10 < 18 > Jones and an extremely low noise equivalent power of 2.56 * 10 <-19 > W / Hz < 1 / 2 >, so that the device becomes an ideal candidate material for partial discharge detection, security monitoring, environmental monitoring, space exploration and other applications.

The invention discloses an oxygen vacancy enriched lithium-doped zinc oxide nanotube reinforced polyethylene oxide (PEO)-based solid electrolyte and a preparation method thereof. The electrolyte takes PEO as a polymer matrix, lithium bis (trifluoromethanesulfonimide) (LiTFSI) as a lithium salt, and a three-dimensional hollow ZnO nanotube (LZN) doped with a lithium element as an inorganic reinforcing filler. By introducing Li < + > into ZnO crystal lattices for doping, a large number of positively charged oxygen vacancies can be induced to form, and the oxygen vacancies as Lewis acid sites have strong interaction with lithium salt anions to promote dissociation of lithium salt, so that the free Li concentration and ion mobility in the system are improved. The three-dimensional interconnection structure of the hollow nanotube constructs a continuous organic-inorganic ion transmission channel at the same time, so that the interface impedance is further reduced, and the overall ionic conductivity of the electrolyte is improved. The Li < + > conductivity of the prepared composite solid electrolyte at 60 DEG C can reach 8.12 * 10 <-4 > S / cm, and the composite solid electrolyte has excellent electrochemical stability and high coulombic efficiency. LiFePO4 / Li and NCM622 / Li all-solid-state batteries assembled by using the electrolyte membrane show good cycling stability and high-voltage adaptability. Through collaborative design of oxygen vacancy engineering and a hollow structure, the comprehensive performance of the polymer electrolyte is remarkably improved, and a new solution is provided for development of a high-energy-density and long-service-life all-solid-state lithium battery.

The present invention relates to expanded carbon for improving the output of a secondary battery and a method for manufacturing the same. The present invention comprises a method for manufacturing expanded carbon for enhancing the output of a secondary battery, wherein the method comprises the steps of: mixing lithium metal into a water-soluble oil and then mixing carbon to produce a mixture; reacting the mixture at 200 to 450°C while applying pressure to produce a lithium-carbon compound in which lithium is incorporated between carbon layers; and heat-treating the lithium-carbon compound to produce expanded carbon in which lithium is detached and removed from the lithium-carbon compound, thereby expanding the carbon layers; wherein the heat treatment is characterized by rapidly heating the lithium-carbon compound to 450 to 1,000°C by passing an electric current through it. The technical gist of the invention is the expanded carbon produced thereby.

The present invention provides a layered oxide with a mixed-phase structure, its preparation method, and its application, belonging to the technical field of sodium-ion battery positive electrode materials. This invention coats an O3 phase material with a layer of P2 phase material. This coating structure combines a high-capacity core O3 phase with a structurally stable outer P2 phase, improving the material's reversibility and air stability, reducing surface residual alkali, and improving rate performance. Furthermore, this invention eliminates the need for lithium doping to control the formation of the composite phase, reducing production costs.

The application discloses an organic superlattice material, a lithium-doped organic superlattice material and a preparation method and application thereof, and relates to the technical field of superlattice materials.The organic superlattice material comprises a first organic crystal layer and a second organic crystal layer which are alternately stacked, the first organic crystal layer comprises a network structure formed by a first small-molecule organic compound, and the second organic crystal layer comprises a network structure formed by a second small-molecule organic compound; wherein the first small-molecule organic compound comprises a first monocyclic aromatic compound, and the first monocyclic aromatic compound has a proton donor group; and the second small-molecule organic compound comprises a second monocyclic aromatic compound, and the second monocyclic aromatic compound has a proton acceptor group.A new organic superlattice material is provided, which is applied to a solid-state electrolyte and can improve ionic conductivity.