High air-stable solid-state electrolyte, electrode, battery cell, unit cell, and power device

Abstract

The application discloses a high-air-stability solid-state electrolyte, an electrode, a battery cell, a single battery and an electric device, and the high-air-stability solid-state electrolyte is prepared by co-doping a compound with high air stability and a sulfide electrolyte; wherein the air-stable compound is mainly used for inhibiting hydrolysis and improving air stability; when the air-stable compound is a selenide, Se²⁻ co-doping inhibits PS4 3‑ Tetrahedral rotation, reduces water adsorption energy.

Description

Technical Field

[0001] This invention relates to the technical field of a high air-stable solid electrolyte, electrode, cell, single cell, and electrical device for lithium-ion batteries, and particularly to a high air-stable solid electrolyte, electrode, cell, single cell, and electrical device, as well as its preparation method and application. Background Technology

[0002] Liquid lithium batteries have reached their energy density limits and pose a risk of thermal runaway. To meet the demands for higher safety and energy density, solid-state batteries have emerged. As a representative of next-generation battery technology, solid-state batteries are gradually becoming a research hotspot in the new energy field due to their advantages such as high safety, high energy density, and long lifespan.

[0003] Sulfide electrolytes are considered one of the most ideal electrolyte materials for solid-state batteries due to their high ionic conductivity and good mechanical properties. Their ionic conductivity can reach or even exceed that of liquid electrolytes, giving sulfide solid-state batteries significant advantages in terms of energy density and power density.

[0004] However, the commercialization of sulfide electrolytes has been limited because they readily react with water, carbon dioxide, and oxygen in the air, especially with water to produce highly toxic hydrogen sulfide gas.

[0005] In the prior art, CN116613372A discloses a two-phase doped sulfide solid electrolyte and its preparation method. This electrolyte consists of an iodine-rich antimony-based silver sulfide germanium ore phase with good lithium stability and an air-stable tin-based lithium sulfide superionic conductor phase. Both original phases have low ionic conductivity. During heat treatment, antimony and tin elements interdiffusion into each other. The antimony-doped tin-based lithium sulfide superionic conductor has high ionic conductivity but poor lithium stability; this drawback is compensated for by the iodine-rich silver sulfide germanium ore phase. Simultaneously, tin doping enhances the air stability of the antimony-based silver sulfide germanium phase and improves its ionic conductivity. This invention cleverly combines the advantages of both phases, preparing a high-ionic-conductivity, non-toxic, and highly air-stable sulfide solid electrolyte without using expensive germanium, toxic arsenic, or phosphorus, which is detrimental to air stability.

[0006] In addition, patent CN116404241A discloses a high-conductivity air-stabilized sulfide solid electrolyte and its preparation method. The general chemical formula of this sulfide solid electrolyte is Li. 4-x Sn 1-x Bi x S4; where x = 0.025-0.10. This invention introduces a specific amount of Bi into the Li4SnS4 system. 3+ It can not only effectively improve ionic conductivity, but also, according to the hard and soft acid-base theory, Bi 3+Able to be with S 2- The formation of stable chemical bonds enhances its stability in air. This invention yields a sulfide solid electrolyte with excellent air stability and conductivity through a simple two-step ball milling and annealing process, providing an excellent strategy for the practical application of all-solid-state batteries.

[0007] This solution proposes a high air-stability solid electrolyte, electrodes, battery cells, single-cell batteries, and related equipment. The high air-stability solid electrolyte is prepared by co-doping a compound with high air stability with a sulfide electrolyte. The air-stabilizing compound, either a sulfide or a selenide, primarily functions to inhibit hydrolysis and improve air stability. In particular, the selenide co-doping (Se²⁻) suppresses PS4. 3- Tetrahedral rotation reduces the water adsorption energy. Summary of the Invention

[0008] The purpose of this invention is to provide a high air-stability solid electrolyte, its battery cell, and related electrical devices. The high air-stability solid electrolyte is prepared by co-doping a compound with high air stability with a sulfide electrolyte; wherein the air-stabilizing compound, consisting of sulfides or selenides, primarily functions to inhibit hydrolysis and improve air stability; especially selenides, when co-doped with Se²⁻, suppress PS₄. 3- Tetrahedral rotation reduces the water adsorption energy.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] In a first aspect, the present invention provides a high-air-stability solid electrolyte, a battery cell, and battery cells and electrical devices thereof, the material being produced by using a stable compound M c It is prepared by high-temperature sintering of compounds of Nd, lithium sulfide, phosphorus pentasulfide and other elements.

[0011] As a specific technical solution, the chemical structure of this high-air-stable solid electrolyte is Li 7-a-3b M b PS 6₋a- 1.5b N 1.5b X a , where 0≤a≤2, 0≤b≤0.5; all of the above are mol ratios, where a can be 0, 1, 2 or any of these values; where b can be 0.05, 0.1, 0.2, 0.3, 0.4, 0.5 or any of these values.

[0012] As a specific technical solution, the stable compound M cNd, where 1 ≤ c ≤ 4; 1 ≤ d ≤ 5, where c can specifically be 1, 2, 3, 4, or any numerical ratio thereof; where d can specifically be 1, 2, 3, 4, 5, or any numerical ratio thereof; the above-mentioned stable compound M c The classic combinations of Nd compounds are one or more of Al2S3, Al2Se3, Sc2Se3, Y2Se3, La2Se3, TiSe2, ZrSe2, Sb2Se3, and Bi2Se3; but are not limited to the classic combinations mentioned above.

[0013] Secondly, the present invention provides a method for preparing the above-mentioned composite material, comprising the following steps:

[0014] This invention also discloses a method for preparing a high-air-stability solid electrolyte, electrodes, cells, single-cell batteries, and electrical devices, characterized by comprising the following steps:

[0015] Its characteristic includes the following steps:

[0016] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0017] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0018] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0019] As a specific technical solution, in step S1 of the preparation method of the high-air-stable solid electrolyte, the drying and dehydration temperature is ≤300℃, which can be 100℃, 200℃, 300℃ or any value therein; the processing time is ≤12h: any value among 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

[0020] As a specific technical solution, in step S2 of the preparation method of the high-air-stable solid electrolyte, the particle size is controlled to be ≤10μm: specifically, it can be any value among 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10μm.

[0021] As a specific technical solution, in step S3 of the preparation method of the high-altitude stable solid electrolyte, the molar ratio of the solution can be any number of molar ratios, depending on the specific material structure, etc.

[0022] As a specific technical solution, in step S3 of the preparation method of the high-air-stable solid electrolyte, the high-temperature sintering temperature is 350℃≤sintering temperature≤560℃, which can be any value among 350℃, 400℃, 450℃, 500℃, and 560℃; and the sintering time is 4h≤sintering time≤24h, which can be any value among 4h, 8h, 12, 16h, 20h, and 24h.

[0023] As a specific technical solution, in step S3 of the preparation method of the high-air-stable solid electrolyte, the solid cathode material can be a composite cathode material layer containing ternary (high nickel, medium nickel, low nickel, and single crystal, polycrystalline), lithium iron phosphate, lithium cobalt oxide, lithium nickel oxide, lithium manganese iron phosphate, or lithium-rich manganese-based cathode materials; the anode material can be a composite anode material layer containing graphite, silicon oxide, silicon carbon, CVD silicon carbon, or no anode structure; and the electrolyte can be a composite electrolyte layer containing polymer solid electrolyte, oxide solid electrolyte, halide solid electrolyte, or sulfide solid electrolyte layers.

[0024] Thirdly, the present invention also provides the application of high air-stable solid electrolyte, cell and battery cell and the high air-stable solid electrolyte material prepared by the preparation method of the battery cell and the electrical device thereon in the battery, wherein the battery includes any one of lithium-ion battery, solid battery and semi-solid battery.

[0025] Compared with existing technologies, the low electrochemical window of phosphides preferentially decomposes to form an SEI film to suppress negative interfacial reactions. In addition, when the phosphide is a metal phosphide that can form an alloy with lithium, the decomposed metal forms an alloy with lithium, which further induces uniform lithium deposition. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Unless otherwise specified, the experimental methods used in the examples and comparative examples are conventional methods, and the materials and reagents used are commercially available unless otherwise specified.

[0028] The present invention will be further described in detail below through detailed embodiments.

[0029] Example 1

[0030] This embodiment provides a method for preparing a high-air-stability solid electrolyte, electrodes, a battery cell, and its battery cells and electrical devices, wherein the structural formula is Li. 5.35 Al0.05 PS 4.425 Se 0.075 Cl 1.5 The raw materials are lithium chloride, lithium sulfide, phosphorus pentasulfide, and Al2Se3. The preparation method of this high air stability solid electrolyte is as follows:

[0031] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0032] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0033] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0034] Example 2

[0035] This embodiment provides a method for preparing a high-air-stability solid electrolyte, electrodes, a battery cell, and its battery cells and electrical devices, wherein the structural formula is Li. 5.2 Al 0.1 PS 4.35 Se 0.15 Cl 1.5 The raw materials are lithium chloride, lithium sulfide, phosphorus pentasulfide, and Al2Se3. The preparation method of this high air stability solid electrolyte is as follows:

[0036] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0037] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0038] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0039] Example 3

[0040] This embodiment provides a method for preparing a high-air-stability solid electrolyte, electrodes, a battery cell, and its battery cells and electrical devices, wherein the structural formula is Li. 5.35 Sc 0.05 PS 4.425 Se 0.075 Cl 1.5The raw materials are lithium chloride, lithium sulfide, phosphorus pentasulfide, and Sc2Se3. The preparation method of this high air-stable solid electrolyte is as follows:

[0041] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0042] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0043] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0044] Example 4

[0045] This embodiment provides a method for preparing a high-air-stability solid electrolyte, electrodes, a battery cell, and its battery cells and electrical devices, wherein the structural formula is Li. 5.35 Y 0.05 PS 4.425 Se 0.075 Cl 1.5 The raw materials are lithium chloride, lithium sulfide, phosphorus pentasulfide, and Y₂Se₃. The preparation method of this high air-stable solid electrolyte is as follows:

[0046] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0047] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0048] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0049] Example 5

[0050] This embodiment provides a method for preparing a high-air-stability solid electrolyte, electrodes, a battery cell, and its battery cells and electrical devices, wherein the structural formula is Li. 5.35 La 0.05 PS 4.425 Se 0.075 Cl 1.5 The raw materials are lithium chloride, lithium sulfide, phosphorus pentasulfide, and La2Se3. The preparation method of this high air stability solid electrolyte is as follows:

[0051] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0052] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0053] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0054] Example 6

[0055] This embodiment provides a method for preparing a high-air-stability solid electrolyte, electrodes, a battery cell, and its battery cells and electrical devices, wherein the structural formula is Li. 5.35 Sb 0.05 PS 4.425 Se 0.075 Cl 1.5 The raw materials are lithium chloride, lithium sulfide, phosphorus pentasulfide, and Sb₂Se₃. The preparation method of this high air-stable solid electrolyte is as follows:

[0056] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0057] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0058] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0059] Example 7

[0060] This embodiment provides a method for preparing a high-air-stability solid electrolyte, electrodes, a battery cell, and its battery cells and electrical devices, wherein the structural formula is Li. 5.35 Bi 0.05 PS 4.425 Se 0.075 Cl 1.5 The raw materials are lithium chloride, lithium sulfide, phosphorus pentasulfide, and Bi₂Se₃. The preparation method of this high-air-stability solid electrolyte is as follows:

[0061] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0062] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0063] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0064] Comparative Example 1

[0065] This embodiment provides a method for preparing a high-air-stability solid electrolyte, a battery cell, and its battery cells and electrical devices, wherein the structural formula is Li. 5.5 PS 4.5 Cl 1.5 The raw materials for preparing this solid electrolyte are lithium sulfide, lithium chloride, and phosphorus pentasulfide, and the preparation method is as follows:

[0066] S1. Remove impurities and moisture from the above raw materials and dry them respectively;

[0067] S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm;

[0068] S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

[0069] The powders from Examples 1-7 and Comparative Example 1 were pressed into cylinders with a diameter of 1 cm and a thickness of 1 cm in a mold. Carbon-coated aluminum foil was added to both sides. Ionic conductivity was measured using an electrochemical workstation under a pressure of 20 MPa. The frequency range was 10 μHz–32 MHz, and the resolution was 1 μΩ. The formula for calculating ionic conductivity was: σ = d / Re × S, where d is the thickness of the sample (cm); Re is the bulk impedance of the sample (ohms), which can be obtained from the intersection of the semicircle and the oblique line in the Nyquist plot of the electrochemical impedance spectroscopy; and S is the effective area of ​​the electrode (cm²). 2 In addition, the air stability test was conducted by placing the powders of the above examples and comparative examples in a glove box with a dew point of -30° for 6 hours and then testing their ionic conductivity according to the above method.

[0070] Table 1 Test data of batteries made in different embodiments

[0071] Example structural <![CDATA[Ionic conductivity (S.cm -1 )]]. Post-exposure ionic conductivity retention rate 1 <![CDATA[Li 5.35 To the 0.05 PS 4.425 HE 0.075 Cl 1.5 ]]> 10.24 8.43 82.30% 2 <![CDATA[Li 5.2 To the 0.1 PS 4.35 HE 0.15 Cl 1.5 ]]> 9.12 7.62 83.50% 3 <![CDATA[Li 5.35 Sc 0.05 PS 4.425 Se 0.075 Cl 1.5 ]]> 10.56 9.08 85.96% 4 <![CDATA[Li 5.35 AND 0.05 PS 4.425 HE 0.075 Cl 1.5 ]]> 10.28 8.79 85.53% 5 <![CDATA[Li 5.35 The 0.05 PS 4.425 HE 0.075 Cl 1.5 ]]> 10.34 8.74 84.54% 6 <![CDATA[Li 5.35 Sat 0.05 PS 4.425 With 0.075 Cl 1.5 ]]> 10.66 9.55 89.61% 7 <![CDATA[Li 5.35 Would 0.05 PS 4.425 Yes 0.075 Cl 1.5 ]]> 10.82 9.71 89.76% Comparative Example 1 <![CDATA[Li 5.5 PS 4.5 Cl 1.5 ]]> 9.82 4.74 48.23%

[0072] As can be seen from Table 1 above, the undoped solid electrolyte has an ionic conductivity of 9.82 mS / cm; after being exposed to an environment with a dew point of -30°C for 6 hours, its ionic conductivity decreases to 4.74 mS / cm; the retention rate is only 48.23%; which proves that its air stability is extremely poor.

[0073] Examples 1-2 used sulfide solid electrolytes with different proportions of Al2Se3 doping; their ionic conductivity decreased with increasing doping ratio, but their air stability increased with increasing doping ratio; Examples 1-2 determined that a doping ratio of 0.05 had better performance.

[0074] According to Examples 2-7, different selenides were used for doping; the performance of different selenides after doping was slightly different; as shown in the table above; in general, doping with highly stable compounds can effectively improve its air stability; among them, the main function of selenides is to inhibit hydrolysis and improve air stability; when selenides are used, Se²⁻ co-doping suppresses PS₄. 3- Tetrahedral rotation reduces the water adsorption energy.

[0075] The present invention provides a high air stability solid electrolyte, electrode, cell, single cell and electrical device, which can be applied to lithium-ion batteries, solid batteries, semi-solid batteries, negative electrode-free batteries and other batteries.

[0076] The above embodiments are merely illustrative of the concept and technical solution of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

[0077] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The invention discloses a high-air-stability solid electrolyte, electrodes, a battery cell, a single cell, and electrical equipment. The high-air-stability solid electrolyte is prepared by co-doping and sintering air-stabilized compounds with sulfide solid electrolyte synthesis raw materials. Its general chemical structural formula is Li. 7-a-3b M b PS 6₋a-1.5b N 1.5b X a .

2. As claimed in claim 1, the feature is that Its chemical structural formula is Li 7-a-3b M b PS 6₋a-1.5b N 1.5b X a Where 0≤a≤2 and 0≤b≤0.5, all of which are mol ratios.

3. According to claim 1, the feature is that, The stable compound structure can be M c N d Where 1 ≤ c ≤ 4; 1 ≤ d ≤ 5, the M element can be Na, K, B, N, Mg, Al, Si, P, K, Ca, Sc, V, Ti, Cr, Mn, Ni, Ga, Ge, La, Rb, Sr, Y, Nb, Mo, Ru, Eu, Er, Yb, Dy, Cs, Sb, Sn, Bi, Zn, Cu, Ce, Rh, Tb, Lu, Hf, Ta, W, Os, Ir, Pt, Au, Pb The compounds are composed of one or more of the following elements: Zr, Cd, Pd, Ag, etc.; the N element is mainly S, Se, Te, Po; the X is one or more of the following elements: F, Cl, Br, I; the classical combinations of the above compounds are one or more of Al2S3, Al2Se3, Sc2Se3, Y2Se3, La2Se3, TiSe2, ZrSe2, Sb2Se3, Bi2Se3; but are not limited to the classical combinations mentioned above.

4. According to claim 1, the feature is that, The sulfide electrolyte precursor may be Li 7₋a PS 6₋a X a The element X may or may not be present; if present, element X can be F, Cl, Br, or I. It can also be a glassy sulfide electrolyte 20Li₂S-80P₂S₅ or a glassy ceramic sulfide Li₇P₃S₅. 11 crystalline sulfides Li6PS5Cl (LPSC), Li 5.4 PS 4.4 Cl 1.6 (LPSC1.6), Li 10 GeP2S 12 Binary compounds: such as Li2S-GeS2, Li2S-P2S5, Li2S-SiS2, etc.; Ternary compounds: such as Li2S-MeS2-P2S5 (Me=Si, Ge, Sn, etc.) and other composites of one or more of these.

5. According to claim 4, the raw materials for synthesizing the sulfide electrolyte can be one or more of Li2S, P2S5, LiCl, LiBr, LiF, LiI, etc.

6. This invention also discloses a method for preparing a high-air-stable solid electrolyte, electrodes, cells, single-cell batteries, and electrical devices, characterized in that... Includes the following steps: S1. Remove impurities and moisture from the above raw materials and dry them respectively; S2. In a protective atmosphere, the above raw materials are refined and the particle size is controlled to D50≤10μm; S3. Mix the refined raw materials uniformly according to a certain molar ratio; place the mixture in an inert gas atmosphere and sinter at high temperature for a certain time; further refine the sintered material into particles of the required particle size, and further assemble it with positive electrode material, negative electrode material and solid electrolyte into a battery.

7. According to claim 6, the dehydration drying in step S1 of the preparation method is mainly used to remove some volatile water and volatile impurities, with a drying temperature of 80 ≤ 300℃ and a drying time of 0 ≤ 12h.

8. According to claim 6, the refining process in step S2 of the preparation method can be dry grinding (sand milling), wet grinding (sand milling), mechanical grinding, ball milling, etc.; the protective atmosphere can be nitrogen, argon, or a mixture thereof; if wet grinding is used, a low-polarity solvent needs to be added, with the solvent polarity between 0 and 5. The core judgment criterion is that when matching sulfide solid electrolytes, the sulfide solid electrolyte and the solvent should not / very slightly react negatively / after a negative reaction, a protective layer can be formed to prevent the sulfide electrolyte from reacting negatively with other materials in the system. The judgment criterion is that the XRD phase structure of the sulfide solid electrolyte does not change or only slightly changes when the sulfide solid electrolyte is immersed in the solvent; the solvent can be one or more of toluene, n-heptane, ACN, ethyl acetate, isobutyl isobutyrate, xylene, and anisole; if wet grinding is used, the solid content needs to be further controlled to ≤50%; if wet grinding is used, the solvent needs to be further dried to remove it.

9. The preparation method according to claim 6, characterized in that, In step S3, the ratio is controlled according to the molar ratio of the chemical structure; the sintering temperature is 300℃≤sintering temperature≤600℃, and 4≤sintering time≤24; the further refined particle size can be determined according to requirements such as micron level (D50≤10μm) and nano level (D50≤1μm), and the refinement method is the same as that claimed in claim 8.

10. The high air-stable solid electrolyte material according to claim 1 or the high air-stable solid electrolyte material prepared by any one of claims 1 to 9 can be matched with a solid positive electrode, a solid negative electrode, and an electrolyte layer to assemble into a solid battery system, and can be used in electrode sheets, batteries, battery packs, and electrical devices, wherein the battery includes any one of lithium-ion batteries, solid batteries, and semi-solid batteries.