4739 results about "Ionic conductivity" patented technology

The present invention provides a composite binder for a sulfide solid-state battery, a preparation method thereof and an application thereof, wherein the composite binder comprises a binder A, a binder B and a solvent, wherein the mass ratio of the binder A to the binder B is (1-10):(5-1), and the mass ratio of the total mass of the binder A and the binder B to the solvent is 1:(10-100). The present invention adopts a binder having a polar functional group and a low-polarity / non-polar binder for combination, thereby making the prepared composite binder have good compatibility with the sulfide solid electrolyte, that is, it does not affect the ionic conductivity of the sulfide solid electrolysis, and at the same time makes the sulfide solid electrolyte membrane have good mechanical properties and flexibility.

The invention relates to the technical field of functional materials, in particular to a hollow multi-shell material as well as a low-temperature preparation method and application thereof, which comprises the following steps: 1) mixing a water or alcohol solution of a precursor A with an oil phase to prepare a water-in-oil emulsion, or dispersing the water solution of the precursor A into liquid drops by a spraying method; 2) freezing the emulsion or liquid drops obtained in the step 1) at low temperature to obtain ice template particles containing a precursor A; (3) adding the ice template particles obtained in the step (2) into a precursor B solution, controlling the temperature by a program, melting the ice template, and carrying out precipitation or polymerization reaction on A and B to obtain metal fluoride, carbonate or other hollow multi-shell materials; and 4) using the hollow multi-shell layer obtained in the step 3) as an electrolyte additive. The electrolyte additive can improve the viscosity of an electrolyte, improve the ionic conductivity, stabilize a solid electrolyte interface film, effectively inhibit the growth of lithium dendrites, improve the coulombic efficiency of a battery and prolong the cycle life of the battery.

The invention discloses a composite polycrystalline positive electrode material which is prepared by permeating and coating a polycrystalline positive electrode material with an oxyhalide solid electrolyte, and the oxyhalide solid electrolyte comprises one or more of Li-Ta-O-Cl, Li-Nb-O-Cl, Li-Zr-O-Cl and Li-Al-O-Cl. The specific oxyhalide electrolyte is adopted to carry out permeation coating on the polycrystalline positive electrode material, uniform coating on the surface of the polycrystalline positive electrode material and grain boundaries in particles is completed, capacity utilization in the particles of the polycrystalline positive electrode material is achieved, and the capacity utilization rate of the particles of the polycrystalline positive electrode material is improved through the coating effect of the oxyhalide with high ionic conductivity. Ion transmission inside and in gaps of the polycrystalline positive electrode material particles is regulated, interface impedance is reduced, energy density is improved, and the application prospect is wide.

The invention provides a positive electrode, a low-temperature electrolyte, a low-temperature sodium-ion battery and a preparation method and application of the low-temperature sodium-ion battery, and belongs to the technical field of battery materials. The low-temperature sodium ion battery comprises a positive electrode, a negative electrode and a low-temperature electrolyte, wherein the positive electrode comprises a positive electrode active material, a binder, sodium salt containing fluorine and sulfur and conductive carbon; the positive electrode is improved by adding sodium salt containing fluorine and sulfur, sulfur / fluorine rich in anion derivatives can be formed on a contact interface of the positive electrode and an electrolyte to form a firm SEI film, the internal resistance of the battery is further reduced, and the coulombic efficiency of the battery during charging and discharging at normal and low temperatures is improved. The low-temperature electrolyte comprises an ester solvent and an ether additive, by adding the ether solvent, the physicochemical property of the electrolyte and the composition of an SEI film on a contact interface of an electrode and the electrolyte are optimized, the viscosity of the electrolyte at low temperature is reduced, the ionic conductivity is improved, and formation of the SEI film rich in sodium fluoride on the surface of a negative electrode can be promoted; and thus, the problem of low coulombic efficiency of battery charge-discharge cycle at low temperature is solved.

The invention belongs to the technical field of solid electrolyte materials, and particularly relates to a novel preparation method of a solid electrolyte with high ionic conductivity. The lithium source, the lanthanum source, the niobium source and the fluorine source are mixed, and the solid-phase dispersing agent is added in the mixing process, so that more uniform mixing is facilitated. According to the preparation method, precursor powder is obtained after mixing, then pure-phase LLNOF powder can be directly obtained through one-step sintering, the difficulty that in an existing reported preparation process scheme, a product obtained through two-step sintering has an impure phase is overcome, the preparation process is simple, and batch production and industrialization are facilitated.

The present disclosure relates to the technical field of sodium-ion batteries, and in particular to an iron-based polyphosphate-type sodium-ion battery positive electrode material, a preparation method therefor and a use thereof. An organic ferrous source, a sodium source, a phosphorus source and a dopant are mixed and then ground until D50 is less than 180 nm, so that the reactivity of the material is improved, a solid-phase reaction is facilitated, and doped high-valence metal elements such as vanadium, niobium, titanium, zirconium and tin can be better doped into lattices of the iron-based polyphosphate-type sodium-ion battery positive electrode material (NFPP), so as to replace the iron site to form lattice defects such as vacancies, thereby improving the ionic conductivity of the material, inhibiting generation of NaFePO4 impurity phase, and improving the capacity and cycling stability of the material.

The invention discloses a phosphonic acid-based metal organic framework solid electrolyte as well as a preparation method and application thereof, and belongs to the technical field of solid electrolyte materials. The method comprises the following steps: mixing a metal salt, an organic phosphonic acid ligand and an organic solvent, carrying out a coordination reaction, and treating to obtain MOF powder; heating and activating the MOF powder to obtain activated MOF powder; the method comprises the following steps: mechanically grinding lithium salt and MOF powder to form a mixture, heating to enable the molten lithium salt to permeate and fill MOF channels, and cooling to obtain solid electrolyte powder. The ionic conductivity of the solid electrolyte at 30 DEG C reaches 1.01 * 10 <-4 > S cm <-1 >, and the solid electrolyte is kept stable in a 4.4 V high-voltage window. The symmetrical battery based on the phosphonic acid-based MOF solid electrolyte can stably operate, and shows excellent compatibility and stability of the electrolyte and a lithium metal negative electrode. The method has the advantages of simple operation, cheap and easily available components, and is expected to be suitable for large-scale preparation.

The invention relates to a polymer binder for a sulfide solid-state battery as well as a preparation method and application of the polymer binder. The binding agent is formed by copolymerizing vinyl triethoxy silane, 4-vinyl phenylboronic acid lithium and styrene. Silane groups are introduced, the interface adhesiveness with sulfide electrolyte is enhanced through the coupling effect of the silane groups, meanwhile, water in a system is consumed through a condensation reaction, and the water content of an electrolyte membrane is reduced; 4-vinyl phenylboronic acid lithium provides dissociation lithium ions, the ionic conductivity of the binder is improved, and the negative influence on the conductivity of sulfide electrolyte is reduced; the styrene group improves the solubility of the binder in a non-polar solvent. The binder can be dissolved in solvents such as toluene, xylene and the like, and is mixed with sulfide electrolyte to form a film through a wet coating process, and the process compatibility is high. The binder disclosed by the invention has the characteristics of high cohesiveness, ionic conductivity and low water content, and the interface stability and electrochemical performance of the sulfide solid-state battery can be remarkably improved.

The invention discloses a silicon negative electrode material as well as a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The silicon negative electrode material comprises a silicon material substrate and a coating layer coating the surface of the silicon material substrate, the coating layer comprises cyclized polyacrylonitrile and a fast ion conductor. According to the silicon negative electrode material provided by the invention, a uniform cyclized polyacrylonitrile and fast ion conductor coating layer is constructed on the surface of a silicon material matrix. The good electronic conductivity and elasticity of the cyclized polyacrylonitrile and the excellent ionic conductivity of the fast ion conductor are beneficial to buffering the volume expansion of the silicon carbon material, accelerating the lithium ion transmission kinetics and effectively improving the rate capability of the negative electrode material; the cyclized polyacrylonitrile has high chemical stability and strong compatibility with the silicon material and the sulfide solid electrolyte, and is used as a buffer layer between the silicon material and the sulfide solid electrolyte to avoid direct contact between the silicon carbon material and the sulfide solid electrolyte, inhibit interface side reaction and effectively improve the cycle stability of the battery.

The invention relates to an inorganic sodium ion solid electrolyte material screening method, system, equipment and medium, sodium-based inorganic compound data is extracted from an open source material database, and a candidate library is formed through preliminary screening; constructing a regression model by using training data of the dynamic solid electrolyte database, and optimizing and selecting an optimal machine learning model; inputting the preliminary candidate library into the model, and predicting and screening out a preliminary screening material of which the ionic conductivity is higher than a first threshold value; performing simulation calculation on the primarily screened material based on a first principle, simulating sodium ion diffusion tracks at different temperatures by using de novo molecular dynamics, calculating a diffusion coefficient, and extrapolating the diffusion coefficient to ionic conductivity at room temperature; and comparing the electrical conductivity predicted by machine learning and the electrical conductivity simulated by the first principle, and selecting a material of which the two electrical conductivity are both higher than a second threshold value and the migration energy barrier is relatively low as the optimal sodium ion solid electrolyte. Compared with the prior art, the method can efficiently and accurately screen out the high-performance sodium ion solid electrolyte material.

The invention belongs to the technical field of solid-state lithium batteries, and relates to a fluorinated double-salt cross-linked solid-state electrolyte adaptive to a lithium-free negative electrode, a solid-state lithium battery and a preparation method thereof.The preparation method comprises the steps that double-lithium salt is dissolved in a fluorinated solvent to obtain an electrolyte, then a monomer, a cross-linking agent and an initiator are added, the mixture is stirred to be uniform to obtain a precursor solution, and the precursor solution is prepared; and assembling the precursor solution, a positive electrode, a negative electrode and a solid-state electrolyte composite diaphragm into a battery, and performing gradient polymerization to form the solid-state lithium battery. According to the invention, the ionic conductivity of the solid electrolyte is more than 5 * 10 <-4 > S / cm and the oxidation potential of the solid electrolyte is more than 5.8 V by adopting a fluorinated solvent consisting of fluorinated carbonate and fluorinated carboxylate and a double-lithium-salt synergistic system and combining an in-situ interface fusion technology, so that the solid electrolyte can be matched with a 4.8 V high-voltage lithium-rich manganese-based positive electrode and a lithium-free negative electrode; and the energy density and the safety of the solid-state lithium battery are improved. The electrolyte scheme is low in cost, high in safety and good in positive and negative electrode matching performance, can be compatible with an existing battery production line, and is convenient for large-scale production.

The invention provides a double-layer polymer solid electrolyte, a preparation method thereof and a lithium ion battery, and belongs to the technical field of solid electrolyte manufacturing. The first polymer solid electrolyte layer comprises the following raw materials in parts by weight: 4-30 parts of a first reactive monomer A, 5-25 parts of a first reactive monomer B, a first cross-linking agent, a first photoinitiator, a first lithium salt, 1-20 parts of a first carbonic ester plasticizer and 20-45 parts of a nitrile plasticizer; the second polymer solid electrolyte layer comprises the following raw materials in parts by weight: 4-30 parts of a second reactive monomer A, 5-25 parts of a second reactive monomer B, a second cross-linking agent, a second photoinitiator, a second lithium salt, 1-35 parts of a second carbonic ester plasticizer and 10-35 parts of a fluorine-containing plasticizer; the double-layer polymer solid electrolyte has the advantages of relatively high ionic conductivity and compatibility of a high-voltage battery positive electrode and a low-voltage lithium metal negative electrode, so that the corresponding battery has relatively excellent cycle performance and relatively high capacity.

The invention provides a composite solid-state electrolyte membrane and a preparation method and application thereof, and belongs to the field of lithium battery solid-state electrolytes.The preparation method comprises the steps that solid-state electrolyte powder and carbon precursor powder are pressed into a membrane and then subjected to gradient heating calcination, and a three-dimensional framework porous ceramic membrane is obtained; uniformly mixing a lithium salt, a polymer monomer and an initiator to prepare a polymerization solution; and dropwise adding the polymerization solution onto the three-dimensional skeleton porous ceramic membrane, and carrying out thermal polymerization to obtain the composite solid electrolyte membrane. Aiming at the inorganic solid electrolyte, the composite solid electrolyte membrane with high ionic conductivity and good interfacial compatibility is obtained in a mode of in-situ construction of the composite solid electrolyte membrane, and the problems that the inorganic solid electrolyte is low in ionic conductivity, poor in interface contact and not resistant to high pressure are effectively solved.

The present invention relates to a lithium-ion battery diaphragm modified by high-temperature fluorine-containing liquid crystal polymer and polyvinylidene fluoride, and a preparation method and application thereof. The lithium-ion battery diaphragm of the present invention comprises a base diaphragm and a modified coating coated on the surface of the base diaphragm, wherein the modified coating comprises a fluorine-containing liquid crystal polymer and polyvinylidene fluoride. The present invention forms a modified coating by mixing and dissolving the two materials in a suitable solvent, which significantly improves the thermal stability, chemical stability, mechanical strength and ionic conductivity of the diaphragm, thereby improving the safety performance and cycle life of the battery.

A transistor that has a capacitance that varies in response to pressure includes a gel coupled to a gate thereof. The gel comprises a eutectic mixture having ionic conductivity.

The invention relates to a silicon-based negative electrode material for a sulfide solid-state lithium battery, which is prepared by the following method: mixing silicon powder and sulfide solid-state electrolyte, performing ball milling, adding a lithium alloy lithium supplement agent, and continuing ball milling to obtain mixed powder; and uniformly mixing the mixed powder with the metal nanoparticles to obtain the silicon-based negative electrode material, so that the electronic conductivity and the ionic conductivity of a silicon negative electrode can be improved at the same time. The lithium supplement agent selects a lithium alloy material, has good compatibility with sulfide electrolyte, and can effectively inhibit the volume expansion coefficient of a silicon negative electrode after being added; and secondly, along with the synchronous improvement of the electron conductivity and the ion conductivity of the negative electrode, the multiplying power and the coulombic efficiency of the total battery can be comprehensively improved, and the stability limitation of the negative electrode interface is improved.

The invention discloses a preparation method of a lithium-phosphorus-sulfur-bromine solid-state electrolyte, and relates to the technical field of solid-state lithium batteries. The material is subjected to raw material pretreatment, mechanochemical ball milling, high-temperature crystallization treatment and post-treatment processes, so that the solid electrolyte with high crystallinity, high ionic conductivity and good processability is obtained. According to the method, dynamic bromine atmosphere control is adopted, sulfur partial pressure adjustment and particle size gradient design are combined, and the structural stability and the ion transmission performance of the material are improved.

The invention belongs to the technical field of batteries, and particularly relates to a lithium ferrite lithium supplement agent and a preparation method and application thereof. Compared with the prior art, a solid electrolyte coating layer is formed on the surface of the carbon-doped lithium iron oxide material through a low-temperature molten salt method, so that air can be effectively isolated, the air stability of the material is improved, the lithium removal phenomenon is reduced, and the structural integrity and lithium supplement performance of the material are kept; and the lithium ferrite lithium supplement agent combines the high theoretical lithium supplement capacity of Li5FeO4 and the excellent ionic conductivity of the solid electrolyte, so that the electrochemical performance of the material can be improved while the high lithium supplement capacity is maintained, and a new technical scheme is provided for commercial application of the high-energy-density lithium ion battery.

The invention discloses a single-ion conductor polymer, a ternary composite binder solution, high-solid-content sulfide electrolyte slurry and a wet film forming method and application thereof, and belongs to the technical field of all-solid-state lithium batteries. The key technical problems in the wet membrane preparation of the sulfide electrolyte are solved through an innovative solvent-binder synergistic system, and the method specifically comprises the steps that 1, through the synergistic effect of a non-polar solvent and a weak-polar solvent, low-viscosity coating of high-solid-content slurry is achieved while the chemical stability of the sulfide electrolyte is guaranteed; 2, a poly (lithium styrenesulfonate-butyl acrylate), styrene butadiene rubber and polyisobutene ternary composite binder is designed, a lithium ion transmission channel is provided through a lithium sulfonate group, a benzene ring structure in the styrene butadiene rubber enhances the mechanical strength, long-chain alkane in the polyisobutene improves the interface adhesive force, and the mechanical strength is improved; the three components cooperate to realize balance of mechanical and electrochemical properties of the electrolyte membrane, so that the prepared electrolyte membrane has low porosity, high ionic conductivity and mechanical strength.

The invention relates to the technical field of supercapacitors, and provides a cement-based supercapacitor, a preparation method and application. The cement-based supercapacitor comprises a cement-based electrolyte and two structural electrodes arranged on the two sides of the cement-based electrolyte. The cement-based electrolyte is prepared from cement, alkali, alkali metal salt, water and an additive, wherein the alkali metal salt comprises lithium salt; each structural electrode is composed of foamed nickel loaded with nitrogen-doped reduced graphene oxide. The lithium salt is added to construct an efficient ionic conductive network, so that the ionic conductivity of the cement-based electrolyte is enhanced, and the electrochemical performance is obviously improved. The reduced graphene oxide in the structural electrode is doped with nitrogen to enhance the electrostatic force between ions and the surface of the electrode, so that the electrochemical stability of the surface of the electrode is improved, and self-discharge is effectively inhibited. By improving an electrolyte and a structural electrode material, a cement-based supercapacitor with specific capacitance and mechanical properties is obtained and is combined with a building structure to realize building energy storage.

The invention discloses a preparation method and application of a sulfide solid electrolyte membrane based on a gradient polymer / ionic liquid composite binder, and an all-solid-state battery, and belongs to the technical field of all-solid-state batteries. The method comprises the following steps: firstly coating a polymer / ionic liquid / sulfide electrolyte composite layer through a gradient coating process, filling particle gaps under low pressure by utilizing the plasticizing effect of ionic liquid, and reducing the porosity of an interface; and then coating a polymer / sulfide electrolyte surface layer to provide mechanical support and inhibit side reaction of the electrode. According to the design, the electrolyte membrane still keeps high ionic conductivity under the working pressure of a commercial power battery module, and the interface impedance is reduced compared with that of a traditional homogeneous membrane. Through the innovative gradient structure and material combination, the ion transmission bottleneck of the sulfide electrolyte under the low-pressure condition is solved, excellent interface stability and process compatibility are achieved, and a key technical scheme is provided for all-solid-state battery industrialization.

The invention discloses a lithium ion battery modified graphite negative electrode material and a preparation method and application thereof, and belongs to the technical field of batteries, the negative electrode material is of a core-shell structure, an internal core is graphite particles, an external shell is a high electronegativity nonmetal / metal heteroatom co-doped carbon material of N, O, F and the like, the weight ratio of carbon doped in the shell part to graphite is X, and 2% < = X < = 20%. Compared with the prior art, the negative electrode material can form an SEI film which is more stable, compact and continuous and is rich in fluoride with high ionic conductivity, so that the SEI film can be effectively prevented from being broken and lost in the later charging and discharging process, and the service life of the negative electrode material is prolonged while the first-round coulombic efficiency of the negative electrode material is remarkably improved. And the cycle life and the high-current charge-discharge performance of the negative electrode material can be remarkably improved.

The present disclosure provides a solid electrolyte composition that can suppress deterioration in ion conductivity of an ionic solid electrolyte material. The solid electrolyte composition according to the present disclosure contains a sulfur element-free ionic solid electrolyte material and an organic solvent, where the organic solvent includes at least one selected from the group consisting of a hydrocarbon and a compound having a functional group; and the functional group is at least one selected from the group consisting of an ether group, a halogen group, and a Si—O—C group.

The invention provides a composite solid electrolyte and a preparation method thereof, and belongs to the technical field of solid electrolyte materials. The solid electrolyte powder, the photosensitive resin monomer, the lithium salt, the plasticizer and the photoinitiator are used as raw materials to prepare the composite solid electrolyte, the plasticizer can be inserted between polymer chains, the compatibility of the solid electrolyte powder and a polymer is improved, electrode interface contact is improved, the flexibility of the composite solid electrolyte is improved, and the service life of the composite solid electrolyte is prolonged. The ionic conductivity of the composite solid electrolyte is further improved; the photosensitive resin monomer and the photoinitiator can be subjected to photopolymerization in-situ curing, so that the composite solid electrolyte has better mechanical property and flexibility, electrode interface contact is improved, and the ion conductivity is improved.

The invention provides a modified lithium sulfide solid electrolyte, a sulfide solid electrolyte, a preparation method thereof and a battery, and relates to the technical field of solid electrolyte materials. The preparation method of the sulfide solid electrolyte is different from a traditional doping technology, the high-stability sulfide solid electrolyte is prepared mainly through modification of lithium sulfide, the comprehensive performance of the sulfide solid electrolyte is improved, the ionic conductivity and chemical stability of the sulfide solid electrolyte are improved, and the service life of the sulfide solid electrolyte is prolonged. And the mechanical strength and the crack resistance are also obviously enhanced. The preparation method disclosed by the invention is simple, does not need to be carried out at high temperature, and does not need to use expensive raw materials and complex processes, so that the production cost is reduced, the application range of the sulfide solid electrolyte is expanded, and large-scale production and application of the sulfide solid electrolyte are favorably realized.

The invention relates to a solid electrolyte coated silicon-carbon negative electrode material and a preparation method thereof, an all-solid-state battery and an electric device, and belongs to the technical field of methods or devices for directly converting chemical energy into electric energy. The solid electrolyte coated silicon-carbon negative electrode material comprises a silicon-carbon negative electrode material and a solid electrolyte coating layer arranged on the surface of the silicon-carbon negative electrode material, the solid electrolyte coating layer comprises at least one of sulfide electrolyte and halide electrolyte; the silicon-carbon negative electrode material comprises an inner core and a carbon coating layer arranged on the surface of the inner core, the inner core comprises a porous carbon matrix and a silicon-based material positioned in pores of the porous carbon matrix. The solid-state electrolyte coated silicon-carbon negative electrode material enables an all-solid-state battery to have high ionic conductivity and first efficiency and excellent cycling stability.

The invention belongs to the technical field of design and preparation of solid electrolyte materials, and particularly relates to a LiBH4-based composite solid electrolyte material and a preparation method thereof.The LiBH4-based composite solid electrolyte material is obtained by performing high-energy ball milling on a mixture of LiBH4 and one or two metal halides MX2 in a certain molar ratio in an argon atmosphere; m is Mg, Zn, Ni or Bi; x is F, Cl, Br or I. According to the LiBH4 composite solid electrolyte prepared by the preparation method disclosed by the invention, the ionic conductivity at room temperature is improved to 10 <-4 > S cm <-1 > or above, and the ion diffusion activation energy is only 0.16 eV; the process is simple, the preparation time is short, the repeatability is high, no pollution is caused to the environment, and the industrial production requirement is met, so that the all-solid-state lithium ion battery electrolyte is expected to realize commercialized application.

The present disclosure provides a solid electrolyte composition that can suppress deterioration in ion conductivity of an ionic solid electrolyte material. The solid electrolyte composition according to the present disclosure contains a sulfur element-free ionic solid electrolyte material and an organic solvent, where the organic solvent includes at least one selected from the group consisting of a hydrocarbon and a compound having a functional group; and the functional group is at least one selected from the group consisting of an ether group, a halogen group, and a Si—O—C group.

The invention relates to a polymer-based composite solid electrolyte, a preparation method and a sodium solid-state battery, and belongs to the technical field of solid-state batteries. The polymer-based composite solid electrolyte is prepared from the following components in parts by mass: 8 to 12 parts of alkene polymer, 4 to 8 parts of sodium salt and 1 to 8 parts of filler, and the filler is nitrided nano TiO2. The polymer-based composite solid electrolyte can be prepared in a simple and efficient mode, the ionic conductivity is high, the electrochemical stability window is wide, the ionic conductivity reaches 0.3-1.2 mS / cm, and the electrochemical stability window reaches 4.3-5.5 V; and meanwhile, the formation of good SEI can be promoted in the sodium solid-state battery, and the interface stability between the electrolyte and the electrode is improved.

The invention provides a solid electrolyte and a preparation method and application thereof, the solid electrolyte comprises a solid electrolyte matrix and a coating layer existing on the surface of the solid electrolyte matrix, and the coating layer comprises an inorganic substance with a sublimation temperature less than 500 DEG C; the coating rate of the solid electrolyte is greater than or equal to 90%. According to the solid electrolyte provided by the invention, the coating layer is introduced to the surface of the solid electrolyte matrix, the inorganic matter with the sublimation temperature less than 500 DEG C is used as the coating material, and the coating rate is greater than or equal to 90%, so that the interface impedance between the solid electrolyte and the electrode material can be reduced, and the microdefects and pores on the surface of the solid electrolyte matrix can be filled up; meanwhile, the solid electrolyte matrix can be prevented from being directly exposed in the environment, chemical bonds can be formed between the solid electrolyte matrix and some metal elements in the solid electrolyte matrix, and therefore the ionic conductivity retention rate and stability of the solid electrolyte can be improved, and the specific capacity and the first coulombic efficiency of a battery can be improved when the solid electrolyte is applied to the battery.