CN110894075A - Method for efficiently synthesizing anti-perovskite material by using catalyst and application - Google Patents

Method for efficiently synthesizing anti-perovskite material by using catalyst and application Download PDF

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CN110894075A
CN110894075A CN201910972325.9A CN201910972325A CN110894075A CN 110894075 A CN110894075 A CN 110894075A CN 201910972325 A CN201910972325 A CN 201910972325A CN 110894075 A CN110894075 A CN 110894075A
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perovskite material
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perovskite
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邓永红
韩兵
冯东宇
张震
池上森
王庆容
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Southwest University of Science and Technology
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Abstract

The invention relates to the technical field of synthesis of anti-perovskite materials, in particular to a method for efficiently synthesizing an anti-perovskite material by using a catalyst and application of the method. The method comprises the following steps: according to the stoichiometric ratio of a target product, carrying out mixing mechanical grinding treatment on lithium hydroxide and LiX to obtain a lithium-containing mixed material; or according to the stoichiometric ratio of a target product, carrying out mixing mechanical grinding treatment on sodium hydroxide and NaX to obtain a sodium-containing mixed material, wherein X represents any one of Cl, Br and I; and placing the lithium-containing mixed material or the sodium-containing mixed material on a catalyst layer, and calcining at 330-360 ℃ under an anoxic condition to obtain the anti-perovskite material. The method can greatly improve the synthesis efficiency and the synthesis purity of the anti-perovskite material, reduce the synthesis time cost and save the energy consumption.

Description

Method for efficiently synthesizing anti-perovskite material by using catalyst and application
Technical Field
The invention belongs to the technical field of synthesis of anti-perovskite materials, and particularly relates to a method for efficiently synthesizing an anti-perovskite material by using a catalyst and application of the method.
Background
Lithium/sodium metal batteries are currently considered as potential candidates for next-generation energy storage devices, and battery systems represented by lithium air batteries and lithium sulfur batteries are receiving wide attention. However, the safety problems of the conventional lithium ion battery which is widely used at present are increasingly highlighted, and the main root of the problems is that the liquid electrolyte adopted by the conventional lithium ion battery has flammable and explosive properties. Based on the above two points, the all-solid-state lithium/sodium metal battery using the solid electrolyte becomes the focus of the next generation of metal negative electrode battery research.
For example, the anti-perovskite material has high working voltage, does not generate side reaction with the negative electrode, has high ionic conductivity at normal temperature, low synthesis cost, convenient transportation and the like, and can be used as an inorganic solid electrolyte material in a lithium/sodium metal negative electrode battery. Compared with other inorganic solid electrolytes, the material has the outstanding advantage of extremely high ionic conductivity at normal temperature (lithium-rich anti-perovskite material Li3OCl for example, the lithium ion conductivity at 25 ℃ is 0.85X 10-3S/cm). The battery system adopting the solid electrolyte can realize the advantages of higher-rate charge and discharge performance, high efficiency, long cycle life and the like. However, the synthesis of anti-perovskite materials tends to be difficult to achieve with satisfactory purity, because of the high energy barrier present in the synthesis reaction resulting in the presence of a large number of intermediates in the final product. In order to overcome the difficulty, the actual operation needs to further adjust the reaction conditions, such as adding a vacuum reaction environment, prolonging the high-temperature reaction time (more than 24h) and the like,these add significant cost to the synthesis of materials and time, further limiting the widespread use of anti-perovskite materials.
Disclosure of Invention
Aiming at the problems of low product purity, long reaction time and the like caused by high reaction energy barrier in the synthesis process of the anti-perovskite material at present, the invention provides a method for efficiently synthesizing the anti-perovskite material by using a catalyst.
Further, the invention also provides a lithium metal battery and a sodium metal battery containing the anti-perovskite material obtained by the method.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a method for efficiently synthesizing an anti-perovskite material by using a catalyst comprises the following steps:
according to the stoichiometric ratio of a target product, carrying out mixing mechanical grinding treatment on lithium hydroxide and LiX to obtain a lithium-containing mixed material; or according to the stoichiometric ratio of a target product, carrying out mixing mechanical grinding treatment on sodium hydroxide and NaX to obtain a sodium-containing mixed material, wherein X represents any one of Cl, Br and I;
and placing the lithium-containing mixed material or the sodium-containing mixed material on a catalyst layer, and calcining at 330-360 ℃ under an anoxic condition to obtain the anti-perovskite material.
Correspondingly, the lithium metal battery comprises a solid electrolyte, wherein the solid electrolyte comprises the anti-perovskite material prepared by the method for efficiently synthesizing the anti-perovskite material by using the catalyst, and the anti-perovskite material is a lithium-containing anti-perovskite material.
Further, the lithium metal battery comprises a solid electrolyte, wherein the solid electrolyte comprises the anti-perovskite material prepared by the method for efficiently synthesizing the anti-perovskite material by using the catalyst, and the anti-perovskite material is a lithium-containing anti-perovskite material.
The invention has the technical effects that:
compared with the prior art, the method for efficiently synthesizing the anti-perovskite material by using the catalyst can synthesize the anti-perovskite material with the purity of 98% or more at 330-360 ℃ within 1 hour of calcination time by using the catalyst, and the reaction energy barrier is reduced by using the catalyst, so that the synthesis efficiency and the synthesis purity of the anti-perovskite material are greatly improved, the synthesis time cost is reduced, and the energy consumption is reduced.
The lithium metal battery and the sodium metal battery have the characteristic of high purity because the active substance of the anode is synthesized by the synthesis method, so that the content of the active material of the battery can be improved, and the influence of impurities on the electrochemical performance of the battery can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 shows the anti-perovskite material Li prepared in example 13XRD pattern of OCl;
FIG. 2 shows the anti-perovskite material Li prepared in example 13SEM image of OCl;
FIG. 3 shows the anti-perovskite material Li prepared in example 23OCl0.5Br0.5XRD pattern of (a);
FIG. 4 shows the anti-perovskite material Li prepared in example 23OCl0.5Br0.5SEM picture of (1);
FIG. 5 shows the anti-perovskite material Li prepared in example 23OCl0.5Br0.5SEM image at a further magnification;
FIG. 6 shows the anti-perovskite material Li prepared in example 33OCl0.5Br0.5XRD pattern of (a);
FIG. 7 shows the anti-perovskite material Li prepared in example 43XRD pattern of OCl;
FIG. 8 is a schematic view of an embodimentExample 5 preparation of the resulting anti-perovskite Material Li3OCl0.8Br0.2XRD pattern of (a);
FIG. 9 shows the perovskite-resistant material Na prepared in example 63SEM image of OBr;
FIG. 10 is an XRD pattern of an anti-perovskite material prepared according to a comparative example of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a method for efficiently synthesizing an anti-perovskite material by using a catalyst, which comprises the following steps:
according to the stoichiometric ratio of a target product, carrying out mixing mechanical grinding treatment on lithium hydroxide and LiX to obtain a lithium-containing mixed material; or according to the stoichiometric ratio of a target product, carrying out mixing mechanical grinding treatment on sodium hydroxide and NaX to obtain a sodium-containing mixed material, wherein X represents any one of Cl, Br and I;
and placing the lithium-containing mixed material or the sodium-containing mixed material on a catalyst layer, and calcining at 330-360 ℃ under an anoxic condition to obtain the anti-perovskite material.
The technical solution of the present invention is explained in further detail below.
When the raw materials are mixed and mechanically crushed, alkaline earth metal halide can be added, and the obtained anti-perovskite with the general formula of Li is added3-x-δMx/2O(X1-zX′z)1-δ(ii) a Or Li3-x-δMx/3O(X1-zX′z)1-δWherein x is more than or equal to 0 and less than or equal to 1, delta is more than or equal to 0 and less than or equal to 0.2, and z is more than or equal to 0 and less than or equal to 1; m is selected from one or more of Ca, Mg and Al; x, X' each represents halogen; or the obtained anti-perovskite has the general formula Na3-y-θMy/2O(X1-τX′τ)1-θOr Na3-y-θMy/3O(X1-τX′τ)1-θWherein y is more than or equal to 0 and less than or equal to 0.2, theta is more than or equal to 0 and less than or equal to 1, and tau is more than or equal to 0 and less than or equal to 1; m is selected from one or more of Ca, Mg and Al; x, X' all represent halogens. The mechanical crushing can be ball milling treatment by a ball mill and other mechanical grinding modes which can enable raw materials to be uniformly mixed.
The obtained lithium-containing mixed material or sodium-containing mixed material is placed on a catalyst layer, and catalysis can be realized by means of the catalyst layer. The catalyst is made into a material layer, so that the problem that the catalyst is mixed with a product and is difficult to separate in the reaction process is avoided. The material of the catalyst layer may be at least one of an oxide of a transition metal and a sulfide of a transition metal.
For example, the transition metal oxide can be at least one of copper oxide, nickel oxide, ferroferric oxide and cobalt oxide; the sulfide of the transition metal is at least one of copper sulfide and ferrous sulfide.
In particular, the catalyst may be deposited on the surface of the support vessel, for example, the catalyst may be deposited on the surface of a crucible, thereby forming a catalyst layer.
In the calcining process, the anoxic condition can effectively avoid the occurrence of side reactions. The oxygen deficiency can be realized by vacuumizing, and protective atmosphere such as nitrogen, argon, helium and the like can also be introduced.
The moisture content in the reaction system during calcination cannot exceed 1 wt%, and if it exceeds 1 wt%, side reactions occur, resulting in increased product impurities.
And (3) keeping the temperature for 30-60 min at the calcining temperature to obtain the anti-perovskite material.
The mechanism of the chemical reaction that occurs during the above calcination is as follows:
anion doping mechanism: 2LiOH + (1-z) LiA' + z LiA ═ Li3OA’1–zAz+H2O；
The mechanism of cation doping: 2LiOH + (x/2) MA2+(1-x)LiA＝Li3-xMx/2OA+H2O；
The mechanism of anion and cation deletion is as follows: (1-. delta.) LiA +2LiOH ═ Li3-δOA1-δ+H2O；
Under the reaction mechanism, the lithium-containing anti-perovskite structural general formula Li is obtained3-x-δMx/2O(A1-zA′z)1-δ. The cation is alkaline earth metal ion, specifically Ca, Mg, Al, and when the cation is trivalent cation, its structural formula needs to be changed into Li3-x-δMx/3O(A1-zA′z)1-δ. Accordingly, the same mechanism exists for sodium-containing anti-perovskite materials and is not repeated here.
Due to OH in lithium hydroxide in the reaction process-The bond energy of hydrogen and oxygen is high and difficult to break, which is directly reflected by the difficulty of moving the reaction to the right, and if some external measures are not taken, a great amount of intermediate phase containing hydroxide radical aggregation, such as Li, exists in the finally obtained product2(OH) Cl, etc. and results in difficulty in obtaining high purity anti-perovskite materials. The catalyst plays a role in efficiently catalyzing OH in the anti-perovskite synthesis reaction-The middle hydrogen-oxygen bond is broken, so that the whole reaction balance is moved rightwards, and the target product with high purity is finally obtained.
In the above preparation method, the catalyst inevitably reacts, so that the obtained anti-perovskite material is also doped with a small amount of catalyst and catalyst derivatives, and the content of the catalyst and the catalyst derivatives in the anti-perovskite material is (0 to 10) wt%. The derivative of the catalyst can be a metal simple substance obtained by the reduction of the catalyst and a compound obtained by the combination reaction of the catalyst. Such as copper, nickel, iron, cobalt, manganese, ruthenium metals, and compounds corresponding to the listed metals, and the like.
The anti-perovskite obtained by the method can be used as a solid electrolyte of a lithium metal battery or a solid electrolyte of a sodium metal battery, wherein the solid electrolyte of the lithium metal battery is a lithium-containing anti-perovskite material, and the solid electrolyte of the sodium metal battery is a sodium-containing anti-perovskite material.
To more effectively explain the technical solution of the present invention, the following description is made by way of examples.
Example 1
A method for efficiently synthesizing an anti-perovskite material by using a catalyst comprises the following steps:
(a) LiOH with a purity of 99.9% and LiCl with a purity of 99.9% in a molar ratio of 2:1, the total mass is 100g, the mixture is put into a ball mill for ball milling treatment, and the ball milling rotating speed is 360r min-1And ball-milling and mixing for 10min each time, standing for 10min, and ball-milling for 100min totally according to the rule to obtain mixed powder.
(b) Transferring the mixed powder obtained in step (a) into a copper crucible covered with a copper oxide film layer with a thickness of about 1 μm on the surface; placing the crucible into a muffle furnace in a glove box, controlling the oxygen content to be less than or equal to 1 wt% and the water content to be less than or equal to 1 wt%, heating to 330 ℃, preserving the temperature for 20min, and finally naturally cooling to room temperature to obtain the lithium-rich anti-perovskite solid electrolyte Li with the purity of more than or equal to 98%3OCl。
XRD tests were performed on the samples obtained in example 1, and the detailed test results are shown in FIG. 1. As can be seen from FIG. 1, the X-ray diffraction spectrum (Mesured) and Li of the anti-perovskite material3The characteristic peaks of OCl standard theory calculation diffraction spectrum (Simulated) are the same, almost no impurity peak exists, so that the obtained anti-perovskite material can be determined to be Li3OCl and has an extremely high purity.
Fig. 2 is an SEM image of the anti-perovskite material obtained in example 1, and it is clear from fig. 2 that the obtained anti-perovskite material has high crystallinity.
Example 2
A method for efficiently synthesizing an anti-perovskite material by using a catalyst comprises the following steps:
(a) putting LiOH with the purity of 99.9%, LiCl with the purity of 99.9% and LiBr with the purity of 99.9% into a ball mill for ball milling treatment according to the molar ratio of 4:1:1 and the total mass of 100g, wherein the ball milling rotating speed is 360r min-1And ball-milling and mixing for 10min each time, standing for 10min, and ball-milling for 100min totally according to the rule to obtain mixed powder.
(b) Transferring the mixed powder obtained in step (a) into a copper crucible covered with a copper oxide film layer with a thickness of about 1 μm on the surface; and placing the crucible in a muffle furnace in a glove box, and controlling oxygenThe content is less than or equal to 1wt percent, the water content is less than or equal to 1wt percent, the solution is heated to 330 ℃, the temperature is kept for 20min, and finally the solution is naturally cooled to the room temperature, so that the lithium-rich anti-perovskite solid electrolyte Li with the purity of more than or equal to 98 percent can be obtained3OCl0.5Br0.5。
XRD testing was performed on the sample obtained in example 2, and the detailed test results are shown in FIG. 3. As can be seen from FIG. 3, the X-ray diffraction spectrum and Li of the anti-perovskite material3OCl0.5Br0.5The diffraction spectrum characteristic peaks calculated by standard theory are the same and almost have no impurity peak, so that the obtained anti-perovskite material can be determined to be Li3OCl0.5Br0.5And has extremely high purity.
Fig. 4 to 5 are SEM images of the anti-perovskite material obtained in example 2, in which fig. 4 is 3000 times and fig. 5 is 10000 times, and it is clear from fig. 4 and 5 that the crystallinity of the obtained anti-perovskite material is good.
Example 3
A method for efficiently synthesizing an anti-perovskite material by using a catalyst comprises the following steps:
(a) putting LiOH with the purity of 99.9%, LiCl with the purity of 99.9% and LiBr with the purity of 99.9% into a ball mill for ball milling treatment according to the molar ratio of 4:1:1 and the total mass of 100g, wherein the ball milling rotating speed is 360r min-1And ball-milling and mixing for 10min each time, standing for 10min, and ball-milling for 100min totally according to the rule to obtain mixed powder.
(b) Transferring the mixed powder obtained in step (a) into a copper crucible covered with a copper oxide film layer with a thickness of about 1 μm on the surface; placing the crucible into a muffle furnace in a glove box, controlling the oxygen content to be less than or equal to 1 wt% and the water content to be less than or equal to 1 wt%, heating to 330 ℃, preserving the temperature for 20min, and finally naturally cooling to room temperature to obtain the lithium-rich anti-perovskite solid electrolyte Li with the purity of more than or equal to 98%3OCl0.5Br0.5。
XRD testing was performed on the sample obtained in example 3, and the detailed test results are shown in FIG. 6. As can be seen from FIG. 6, the X-ray diffraction spectrum and Li of the anti-perovskite material3OCl0.5Br0.5The diffraction spectrum characteristic peaks calculated by standard theory are the same and almost have no impurity peaks, so that the method can determineThe obtained anti-perovskite material is Li3OCl0.5Br0.5And has extremely high purity.
Example 4
A method for efficiently synthesizing an anti-perovskite material by using a catalyst comprises the following steps:
(a) putting LiOH with the purity of 99.9 percent and LiCl with the purity of 99.9 percent into a ball mill for ball milling treatment according to the molar ratio of 2:1 and the total mass of 100g, wherein the ball milling rotating speed is 360r min-1And ball-milling and mixing for 10min each time, standing for 10min, and ball-milling for 100min totally according to the rule to obtain mixed powder.
(b) Transferring the mixed powder obtained in the step (a) into a nickel crucible with the surface covered with a nickel oxide film layer with the thickness of about 1 mu m; placing the crucible into a muffle furnace in a glove box, controlling the oxygen content to be less than or equal to 1 wt% and the water content to be less than or equal to 1 wt%, heating to 330 ℃, preserving the temperature for 20min, and finally naturally cooling to room temperature to obtain the lithium-rich anti-perovskite solid electrolyte Li with the purity of more than or equal to 98%3OCl。
XRD testing was performed on the sample obtained in example 4, and the detailed test results are shown in FIG. 7. As can be seen from FIG. 7, the X-ray diffraction spectrum and Li of the anti-perovskite material3The characteristic peaks of diffraction spectra calculated by OCl standard theory are the same, and almost no impurity peak exists, so that the obtained anti-perovskite material can be determined to be Li3OCl and has an extremely high purity.
Example 5
A method for efficiently synthesizing an anti-perovskite material by using a catalyst comprises the following steps:
(a) putting LiOH with the purity of 99.9%, LiCl with the purity of 99.9% and LiBr with the purity of 99.9% into a ball mill for ball milling treatment according to the molar ratio of 4:1.6:0.4 and the total mass of 100g, wherein the ball milling rotating speed is 360rmin-1And ball-milling and mixing for 10min each time, standing for 10min, and ball-milling for 100min totally according to the rule to obtain mixed powder.
(b) Transferring the mixed powder obtained in step (a) into a copper crucible covered with a copper sulfide film layer with a thickness of about 1 μm on the surface; placing the crucible into a muffle furnace in a glove box, and controlling the oxygen content to be less than or equal to 1wt% and water content less than or equal to 1 wt%, heating to 320 deg.C, holding the temperature for 20min, and naturally cooling to room temperature to obtain Li rich anti-perovskite solid electrolyte with purity greater than or equal to 98%3OCl0.8Br0.2。
XRD testing was performed on the sample obtained in example 5, and the detailed test results are shown in FIG. 8. As can be seen from FIG. 8, the X-ray diffraction spectrum and Li of the anti-perovskite material3OCl0.8Br0.2The diffraction spectrum characteristic peaks calculated by standard theory are the same and almost have no impurity peak, so that the obtained anti-perovskite material can be determined to be Li3OCl0.8Br0.2And has extremely high purity.
Example 6
A method for efficiently synthesizing an anti-perovskite material by using a catalyst comprises the following steps:
(a) putting 99.9% NaOH, 99.9% NaBr and 99.9% LiBr in a molar ratio of 2:1, wherein the total mass is 500g, into a ball mill for ball milling at a ball milling speed of 360r min-1And ball-milling and mixing for 10min each time, standing for 10min, and ball-milling for 100min totally according to the rule to obtain mixed powder.
(b) Transferring the mixed powder obtained in step (a) into a copper crucible covered with a copper oxide film layer with a thickness of about 1 μm on the surface; placing the crucible into a muffle furnace in a glove box, controlling the oxygen content to be less than or equal to 1 wt% and the water content to be less than or equal to 1 wt%, heating to 340 ℃, preserving the temperature for 20min, and finally naturally cooling to room temperature to obtain the lithium-rich anti-perovskite solid electrolyte Na with the purity of more than or equal to 98%3OBr。
Fig. 9 is an SEM image of 3000 times the anti-perovskite material obtained in example 6, and it is clear from fig. 9 that the obtained anti-perovskite material is good in crystallinity.
Comparative example
A preparation method of an anti-perovskite material comprises the following steps:
(a) LiOH with a purity of 99.9% and LiCl with a purity of 99.9% in a molar ratio of 2:1, the total mass is 100g, the mixture is put into a ball mill for ball milling treatment, and the ball milling rotating speed is 360r min-1Mixing by ball milling 1Standing for 10min after 0min, and ball-milling for 100min totally according to the rule to obtain mixed powder.
(b) Transferring the mixed powder obtained in step (a) into a copper crucible; and putting the crucible into a muffle furnace in a glove box, controlling the oxygen content to be less than or equal to 1 wt% and the water content to be less than or equal to 1 wt%, heating to 330 ℃, preserving the temperature for 20min, and finally naturally cooling to room temperature to obtain the material of lithium dihydrogen oxychloride.
XRD was performed on the comparative sample, and the results are shown in FIG. 10. From fig. 10, it can be seen that the obtained material was lithium dihydroxychloride, which had a large number of impurity peaks and a low purity.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A method for efficiently synthesizing an anti-perovskite material by using a catalyst is characterized by comprising the following steps:
according to the stoichiometric ratio of a target product, carrying out mixing mechanical grinding treatment on lithium hydroxide and LiX to obtain a lithium-containing mixed material; or according to the stoichiometric ratio of a target product, carrying out mixing mechanical grinding treatment on sodium hydroxide and NaX to obtain a sodium-containing mixed material, wherein X represents any one of Cl, Br and I;
and placing the lithium-containing mixed material or the sodium-containing mixed material on a catalyst layer, and calcining at 330-360 ℃ under an anoxic condition to obtain the anti-perovskite material.
2. The method for efficiently synthesizing an anti-perovskite material using a catalyst according to claim 1, wherein the material of the catalyst layer is at least one of an oxide of a transition metal and a sulfide of a transition metal.
3. The method for efficiently synthesizing an anti-perovskite material by using the catalyst according to claim 2, wherein the oxide of the transition metal is at least one of copper oxide, nickel oxide, ferroferric oxide, cobalt oxide, manganese oxide, and ruthenium oxide; the sulfide of the transition metal is at least one of copper sulfide and ferrous sulfide.
4. The method for efficiently synthesizing an anti-perovskite material by using the catalyst according to claim 1, wherein the calcination time is (30 to 60) min.
5. The method for efficiently synthesizing an anti-perovskite material using a catalyst as claimed in claim 1, wherein the anti-perovskite obtained has a general formula of Li3-x-δMx/2O(X1-zX′z)1-δ(ii) a Or Li3-x-δMx/3O(X1-zX′z)1-δWherein x is more than or equal to 0 and less than or equal to 1, delta is more than or equal to 0 and less than or equal to 0.2, and z is more than or equal to 0 and less than or equal to 1; m is selected from one or more of Ca, Mg and Al; x, X' each represents halogen;
or alternatively, Na3-y-θMy/2O(X1-τX′τ)1-θOr Na3-y-θMy/3O(X1-τX′τ)1-θWherein y is more than or equal to 0 and less than or equal to 0.2, theta is more than or equal to 0 and less than or equal to 1, and tau is more than or equal to 0 and less than or equal to 1; m is selected from one or more of Ca, Mg and Al; x, X' all represent halogens.
6. The method for efficiently synthesizing an anti-perovskite material using a catalyst as claimed in claim 1, further comprising adding a halide of an alkaline earth metal to the lithium-containing mixed material or the sodium-containing mixed material and performing a mixing treatment.
7. The method for efficient synthesis of an anti-perovskite material using a catalyst as claimed in claim 1, wherein the anti-perovskite material is Li3OCl、Li3OCl0.5Br0.5、Li3OCl0.8Br0.2、Na3Any of OBr.
8. The method for efficiently synthesizing an anti-perovskite material by using a catalyst according to claim 5, wherein the obtained anti-perovskite further comprises (0-10) wt% of a catalyst and derivatives thereof; the derivative of the catalyst comprises a metal simple substance obtained by reduction of the catalyst and a compound obtained by chemical combination reaction of the catalyst.
9. A lithium metal battery comprises a solid electrolyte, and is characterized in that the solid electrolyte comprises the anti-perovskite material prepared by the method for efficiently synthesizing the anti-perovskite material by using the catalyst according to any one of claims 1 to 8, and the anti-perovskite material is a lithium-containing anti-perovskite material.
10. A sodium metal battery, which comprises a solid electrolyte, and is characterized in that the solid electrolyte comprises the anti-perovskite material prepared by the method for efficiently synthesizing the anti-perovskite material by using the catalyst according to any one of claims 1 to 8, and the anti-perovskite material is a sodium-containing anti-perovskite material.
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