CN112928337A - Preparation method of all-solid-state battery and all-solid-state battery - Google Patents
Preparation method of all-solid-state battery and all-solid-state battery Download PDFInfo
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- CN112928337A CN112928337A CN202110291593.1A CN202110291593A CN112928337A CN 112928337 A CN112928337 A CN 112928337A CN 202110291593 A CN202110291593 A CN 202110291593A CN 112928337 A CN112928337 A CN 112928337A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides a preparation method of an all-solid-state battery and the all-solid-state battery, wherein the preparation method comprises the following steps: and after the all-solid-state battery assembly is assembled, injecting a solid electrolyte solution, and drying to obtain the all-solid-state battery. The preparation method provided by the invention can be compatible with the existing liquid lithium ion battery production equipment, and has the characteristics of simple preparation process, easy industrialization, strong applicability and the like.
Description
Technical Field
The invention belongs to the technical field of batteries, relates to an all-solid-state battery, and particularly relates to a preparation method of the all-solid-state battery and the all-solid-state battery.
Background
At present, most of safety problems of electric automobiles are caused by power batteries, and the safety problems become more prominent while the industry continuously pursues high energy density of the batteries to improve the driving range of the whole automobile. The solid-state battery which replaces organic electrolyte by the solid-state electrolyte is expected to become a safe substitute of the lithium ion battery on the current market.
Using lithium sulfide (Li)2S) or the like as a starting material, and a sulfide-based solid electrolyte having extremely high ionic conductivity (10)-3～10-2S/cm), the all solid-state lithium secondary battery does not use a combustible organic solvent, thereby simplifying a safety device. In addition to being able to improve productivity, it may be stacked in series in the cell to achieve high voltage. In addition, in this type of solid electrolyte, since there is no migration of anions other than lithium ions, it is expected that side reactions due to the migration of anions will not occur to improve safety and durability.
Compared with the case of liquid lithium ion battery electrodes, the manufacturing of all-solid-state battery electrodes is based on the complex mixing of active materials, solid electrolytes and additives under dry conditions, and meanwhile, the solvents compatible with the active materials, the solid electrolytes and the additives are limited, and are usually highly toxic solvents such as toluene, and the manufacturing of sulfide-based solid-state battery electrodes is much more complicated.
CN103956458A discloses a lithium ion battery composite anode, a preparation method thereof and application thereof in an all-solid-state lithium ion battery, wherein the lithium ion battery composite anode consists of an anode active substance, an inorganic solid electrolyte and an oxidation conductive additive; the positive active substance is any one of ternary materials of lithium cobaltate, lithium manganate, lithium iron phosphate and nickel cobalt manganese; the inorganic solid electrolyte is at least one of lithium borate, lithium metaborate and lithium fluoride; the oxide conductive additive is any one of indium tin oxide, indium oxide, tin dioxide, zinc oxide, nickel oxide and ferroferric oxide. The preparation method comprises the following steps: (1) mixing the positive active substance, the inorganic solid electrolyte and the oxide conductive additive, ball-milling, drying and pressing into a ceramic wafer; (2) and sintering the ceramic wafer to obtain the composite anode. The composite electrode is prepared by adopting a dry method, and the problem of poor interface combination of the inorganic solid electrolyte and the active material exists in the composite anode.
CN109326820A discloses a method for manufacturing a sulfide electrolyte and positive electrode composite layer, which specifically comprises: (1) dissolving red phosphorus and orthorhombic sulfur in alcohol organic solvent, and accelerating reaction under microwave irradiation to obtain liquid P2S5(ii) a (2) Placing a substrate in a reactor, and treating the obtained liquid P2S5Addition of Li2S is dissolved in an alcohol organic solvent to form a source solution; (3) introducing carrier gas into the reactor, controlling the flow rate to be 300-1200 sccm respectively, and keeping the pressure to be 10-100 mbar; (4) spraying the source solution to an evaporation area through a pulse nozzle, wherein the pulse frequency is 1-10 Hz, the single pulse spraying time is 4-100 ms, and the lithium ion solid electrolyte P is obtained on the substrate2S5-Li2S and a positive electrode composite layer. However, the method has complex process and is not suitable for large-scale production.
CN103339763A discloses a solid-state battery electrode formed of a lithium ion conductor, an active material, and a solid electrolyte, which includes a particle body containing a plurality of lithium ion conductors and a plurality of active materials. However, the solid-state battery electrode is pressed with the solid-state electrolyte when the battery is assembled, and poor contact exists between the electrode and the solid-state electrolyte, so that the internal resistance of the battery is high.
The existing solid-state batteries have the problems of complex preparation process, insufficient contact between an electrode and an electrolyte, difficulty in industrial production and the like, and how to improve the interface between the electrode and the electrolyte without mixing the solid-state electrolyte in the preparation process of the electrode under the condition of ensuring that the solid-state batteries have simple preparation process becomes a problem which needs to be solved urgently at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an all-solid-state battery and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for preparing an all-solid battery, the method comprising:
and after the all-solid-state battery assembly is assembled, injecting a solid electrolyte solution, and drying to obtain the all-solid-state battery.
The preparation method provided by the invention can be compatible with the existing liquid lithium ion battery production equipment, and has the characteristics of simple preparation process, easy industrialization, strong applicability and the like.
As a preferred technical scheme of the invention, the preparation method specifically comprises the following steps:
the method comprises the following steps of (I) assembling a positive electrode, a negative electrode and a first solid electrolyte into an all-solid-state battery assembly;
(II) injecting a second solid electrolyte solution into the all-solid-state battery assembly; injecting a second solid electrolyte solution and then drying;
and (III) drying and sealing to obtain the all-solid-state battery.
It should be noted that the invention does not make specific requirements and special limitations on the materials of the anode and the cathode, and those skilled in the art can reasonably select the anode and the cathode according to the battery design, wherein the anode includes an anode active material, an anode additive and an anode current collector, the cathode includes a cathode active material, a cathode additive and a cathode current collector, for example, the anode active material is NCM811, the anode additive includes CNT (carbon nanotube) and PVDF (polyvinylidene fluoride), and the anode current collector is aluminum foil; the negative electrode active material is graphite, the negative electrode additive comprises CMC (sodium carboxymethylcellulose), SBR (styrene butadiene rubber) and SP (conductive carbon black), and the negative electrode current collector is copper foil.
As a preferred embodiment of the present invention, the first solid electrolyte includes an insoluble sulfide solid electrolyte, and the insoluble sulfide solid electrolyte is insoluble in an organic solution.
Preferably, the organic solution-insoluble sulfide solid electrolyte comprises 75Li2S-25P2S5And/or Li10GeP2S12More preferably 75Li2S-25P2S5。
As a preferred embodiment of the present invention, the second solid electrolyte solution includes a soluble sulfide electrolyte and a solvent, and the soluble sulfide electrolyte is dissolved in an organic solution.
Preferably, the mass fraction of the solvent in the second solid electrolyte solution is 30 to 95%, for example, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90% or 95%, and more preferably 60 to 90%.
According to the invention, the mass fraction of the solvent in the second solid electrolyte solution is controlled to be 30-95%, and preferably 60-90%, so that the dissolving amount of the second solid electrolyte is ensured, if the mass fraction of the solvent is lower than 60%, the solubility of the solid electrolyte is insufficient, the solid electrolyte is not completely dissolved, and if the mass fraction of the solvent is higher than 90%, the solid electrolyte is completely dissolved, but the dissolving amount is too small, so that the good dipping effect cannot be achieved, and the use requirement of the battery cannot be met.
As a preferred embodiment of the present invention, the second solid electrolyte solution is prepared under a protective atmosphere.
Preferably, the protective atmosphere comprises nitrogen.
As a preferred embodiment of the present invention, the soluble sulfide electrolyte comprises Li6PS5X and/or Li9.54Si1.74P1.44S11.7Cl0.3。
Preferably, the Li6PS5X in X comprises one or a combination of at least two of Cl, Br or I, and is further preferably Li6PS5Cl。
Preferably, the solvent comprises an alcoholic solvent.
Preferably, the alcohol solvent comprises methanol and/or ethanol, and further preferably ethanol.
As a preferred embodiment of the present invention, the injection mode is vacuum injection.
Preferably, the vacuum degree of the vacuum injection is 40 to 90kPa, for example, 40kPa, 45kPa, 50kPa, 55kPa, 60kPa, 65kPa, 70kPa, 75kPa, 80kPa, 85kPa, or 90 kPa.
As a preferred embodiment of the present invention, the drying method is vacuum drying.
Preferably, the temperature of the vacuum drying is 50 to 200 ℃, for example, 50 ℃, 60 ℃, 70 ℃, 80 ℃, 90 ℃, 100 ℃, 110 ℃, 120 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 170 ℃, 180 ℃, 190 ℃ or 200 ℃.
As a preferred embodiment of the present invention, the step (II) is carried out at least once.
The invention can judge whether to continue to carry out injection drying according to the impregnation condition after the injection drying of the electrolyte solution until the design requirement of the battery is met.
Exemplarily, a preparation method of the all-solid-state battery is provided, and the preparation method specifically includes the following steps:
the method comprises the following steps of (I) assembling a positive electrode, a negative electrode and a first solid electrolyte into an all-solid-state battery assembly;
(II) preparing a second solid electrolyte solution under a protective atmosphere, wherein the second solid electrolyte solution comprises a soluble sulfide electrolyte and a solvent, the mass fraction of the solvent is 30-95%, the solvent is further preferably 60-90%, the second solid electrolyte solution is injected into the all-solid battery assembly in a vacuum liquid injection mode, and the vacuum degree of the vacuum liquid injection is 40-90 kPa; injecting a second solid electrolyte solution, and then carrying out vacuum drying at 50-200 ℃;
and (III) drying and sealing to obtain the all-solid-state battery.
In a second aspect, the present invention provides an all-solid-state battery, which is prepared by the method for preparing an all-solid-state battery according to the first aspect.
The recitation of numerical ranges herein includes not only the above-recited numerical values, but also any numerical values between non-recited numerical ranges, and is not intended to be exhaustive or to limit the invention to the precise numerical values encompassed within the range for brevity and clarity.
Compared with the prior art, the invention has the beneficial effects that:
the preparation method provided by the invention can be compatible with the existing liquid lithium ion battery production equipment, and has the characteristics of simple preparation process, easy industrialization, strong applicability and the like.
Drawings
Fig. 1 is a process flow diagram of a method of manufacturing an all-solid battery provided in examples 1 to 3 of the present invention;
fig. 2 is a process flow diagram of a method for manufacturing an all-solid battery provided in examples 4 and 5 of the present invention.
Detailed Description
In order to better illustrate the present invention and facilitate the understanding of the technical solutions of the present invention, the present invention is further described in detail below. However, the following examples are only simple examples of the present invention and do not represent or limit the scope of the present invention, which is defined by the claims.
Example 1
The embodiment provides a preparation method of an all-solid-state battery, as shown in fig. 1, the preparation method specifically includes the following steps:
(I) mixing a positive electrode, a negative electrode and 75Li2S-25P2S5Assembling the battery pack into an all-solid-state battery assembly;
(II) preparing a second solid electrolyte solution under a nitrogen atmosphere, the second solid electrolyte solution comprising Li6PS5Injecting a second solid electrolyte solution into the all-solid-state battery assembly in a vacuum injection mode, wherein the mass fraction of the ethanol is 70%, the vacuum degree of the vacuum injection is 70kPa, and after the second solid electrolyte solution is injected, performing vacuum drying at 100 ℃;
and (III) drying and sealing to obtain the all-solid-state battery.
Example 2
The embodiment provides a preparation method of an all-solid-state battery, as shown in fig. 1, the preparation method specifically includes the following steps:
(I) mixing a positive electrode, a negative electrode and Li10GeP2S12Assembling the battery pack into an all-solid-state battery assembly;
(II) preparing a second solid electrolyte solution under a nitrogen atmosphere, the second solid electrolyte solution comprising Li9.54Si1.74P1.44S11.7Cl0.3And methanol, wherein the mass fraction of the methanol is 60%, a second solid electrolyte solution is injected into the all-solid-state battery assembly in a vacuum liquid injection mode, and the vacuum degree of the vacuum liquid injection is 40 kPa; injecting a second solid electrolyte solution, and then carrying out vacuum drying at 50 ℃;
and (III) drying and sealing to obtain the all-solid-state battery.
Example 3
The embodiment provides a preparation method of an all-solid-state battery, as shown in fig. 1, the preparation method specifically includes the following steps:
the positive electrode, the negative electrode and a first solid electrolyte are assembled into an all-solid-state battery assembly, and the first solid electrolyte is 75Li2S-25P2S5And Li10GeP2S12Combination of (5), 75Li2S-25P2S5And Li10GeP2S12The mass ratio of (A) to (B) is 1: 1;
(II) preparing a second solid electrolyte solution under a nitrogen atmosphere, the second solid electrolyte solution comprising Li6PS5Br and ethanol, the mass fraction of ethanol is 90%, and a second solid electrolyte solution is injected into the all-solid-state battery assembly in a vacuum liquid injection mode, wherein the vacuum degree of vacuum liquid injection is 90 kPa; injecting a second solid electrolyte solution, and then performing vacuum drying at 200 ℃;
and (III) drying and sealing to obtain the all-solid-state battery.
Example 4
The embodiment provides a preparation method of an all-solid-state battery, as shown in fig. 2, the preparation method specifically includes the following steps:
(I) mixing a positive electrode, a negative electrode and 75Li2S-25P2S5Assembling the battery pack into an all-solid-state battery assembly;
(II) preparing a second solid electrolyte solution under a nitrogen atmosphere, the second solid electrolyte solution comprising Li6PS5I and methanol, wherein the mass fraction of the methanol is 60%, a second solid electrolyte solution is injected into the all-solid-state battery assembly in a vacuum liquid injection mode, and the vacuum degree of the vacuum liquid injection is 90 kPa; injecting a second solid electrolyte solution, and then performing vacuum drying at 125 ℃;
and (III) repeating the step (II) once, carrying out secondary liquid injection and drying, and sealing after drying to obtain the all-solid-state battery.
Example 5
The embodiment provides a preparation method of an all-solid-state battery, as shown in fig. 2, the preparation method specifically includes the following steps:
(I) mixing a positive electrode, a negative electrode and Li10GeP2S12Assembling the battery pack into an all-solid-state battery assembly;
(II) preparing a second solid electrolyte solution under a nitrogen atmosphere, the second solid electrolyte solution comprising Li6PS5Cl and ethanol, wherein the mass fraction of the ethanol is 80%, a second solid electrolyte solution is injected into the all-solid-state battery assembly in a vacuum liquid injection mode, and the vacuum degree of the vacuum liquid injection is 50 kPa; injecting a second solid electrolyte solution, and then carrying out vacuum drying at 80 ℃;
and (III) repeating the step (II) once, carrying out secondary liquid injection and drying, and sealing after drying to obtain the all-solid-state battery.
Example 6
The embodiment provides a preparation method of an all-solid-state battery, as shown in fig. 2, the preparation method specifically includes the following steps:
(I) mixing a positive electrode, a negative electrode and Li10GeP2S12Assembling the battery pack into an all-solid-state battery assembly;
(II) preparing a second solid electrolyte solution under a nitrogen atmosphere, the second solid electrolyte solution comprising Li6PS5Cl and methanol, wherein the mass fraction of the methanol is 30%, a second solid electrolyte solution is injected into the all-solid-state battery assembly in a vacuum liquid injection mode, and the vacuum degree of the vacuum liquid injection is 65 kPa; injecting a second solid electrolyte solution, and then performing vacuum drying at 90 ℃;
and (III) repeating the step (II) once, carrying out secondary liquid injection and drying, and sealing after drying to obtain the all-solid-state battery.
Example 7
This example provides a method of making an all-solid-state battery based on example 1, except that the mass fraction of ethanol is 20%, and the remaining operating parameters and procedures are exactly the same as in example 1.
Example 8
This example provides a method for preparing an all-solid-state battery, based on example 1, except that the mass fraction of ethanol is 98%, and the remaining operating parameters and procedures are exactly the same as in example 1.
Example 9
This example provides a method of making an all-solid-state battery based on example 1, except that the mass fraction of ethanol is 45% and the remaining operating parameters and procedures are exactly the same as in example 1.
Example 10
This example provides a method of making an all-solid-state battery, based on example 1, except that the mass fraction of ethanol is 92%, and the remaining operating parameters and procedures are exactly the same as in example 1.
Comparative example 1
This comparative example provides a method for manufacturing an all-solid battery, which is different from example 1 in that a second solid electrolyte solution is not injected into an all-solid battery module, and specifically includes the steps of:
(I) mixing a positive electrode, a negative electrode and 75Li2S-25P2S5Assembling the battery pack into an all-solid-state battery assembly;
(II) carrying out vacuum drying on the all-solid-state battery assembly at 100 ℃;
and (III) drying and sealing to obtain the all-solid-state battery.
In the above examples and comparative examples, the positive electrode active material in the positive electrode was NCM811, the positive electrode additive included CNT (carbon nanotube) and PVDF (polyvinylidene fluoride), and the mass ratio of NCM811, CNT and PVDF was 90: 5: 5, the positive current collector is aluminum foil; the negative electrode active material in the negative electrode is graphite, the negative electrode additive comprises CMC (sodium carboxymethylcellulose), SBR (styrene butadiene rubber) and SP (conductive carbon black), and the mass ratio of the graphite to the CMC to the SBR to the SP is 90: 2: 3: and 5, the negative current collector is copper foil.
The all-solid batteries obtained in the above examples and comparative examples were subjected to a capacity test at 60C under 0.3C, and the test results are shown in table 1.
TABLE 1
| Capacity of | |
| Example 1 | 4mAh |
| Example 2 | 3.8mAh |
| Example 3 | 3.6mAh |
| Example 4 | 4.2mAh |
| Example 5 | 3.9mAh |
| Example 6 | 3.7mAh |
| Example 7 | 2.9mAh |
| Example 8 | 2.6mAh |
| Example 9 | 3.2mAh |
| Example 10 | 2.7mAh |
| Comparative example 1 | 0.5mAh |
From the above table, it can be seen that:
(1) example 1 compared with examples 7, 8, 9 and 10, the capacity of example 1 is better than that of examples 7, 8, 9 and 10, and therefore, the present invention can be seen that the dissolved amount of the second solid electrolyte is ensured by controlling the mass fraction of the solvent in the second solid electrolyte solution to 30 to 95%, and more preferably to 60 to 90%, and if the mass fraction of the solvent is less than 60%, the solubility of the solid electrolyte is insufficient, the solid electrolyte is not completely dissolved, and if the mass fraction of the solvent is more than 90%, the solid electrolyte is completely dissolved, but the dissolved amount is too small, and the good impregnation effect cannot be achieved, and the use requirement of the battery cannot be met.
(2) Compared with the comparative example 1, the capacity of the embodiment 1 is obviously superior to that of the comparative example 1, so that the solid electrolyte solution is filled into the all-solid-state battery assembly to form an ion path, the interface between an electrode and an electrolyte is improved, the solid electrolyte and additives are prevented from being added in the preparation process of the electrode of the all-solid-state battery, the use of highly toxic solvents such as ethylbenzene and the like is avoided, the limitation of an environmental dew point in the preparation process of the electrode is effectively avoided, and the preparation method provided by the invention can be compatible with the existing liquid lithium ion battery production equipment and has the characteristics of simple preparation process, easiness in industrialization, strong applicability and the like.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. A preparation method of an all-solid-state battery is characterized by comprising the following steps:
and after the all-solid-state battery assembly is assembled, injecting a solid electrolyte solution, and drying to obtain the all-solid-state battery.
2. The preparation method according to claim 1, wherein the preparation method specifically comprises the following steps:
the method comprises the following steps of (I) assembling a positive electrode, a negative electrode and a first solid electrolyte into an all-solid-state battery assembly;
(II) injecting a second solid electrolyte solution into the all-solid-state battery assembly; injecting a second solid electrolyte solution and then drying;
and (III) drying and sealing to obtain the all-solid-state battery.
3. The method according to claim 2, wherein the first solid electrolyte comprises an insoluble sulfide solid electrolyte that is insoluble in an organic solution;
preferably, the organic solution-insoluble sulfide solid electrolyte comprises 75Li2S-25P2S5And/or Li10GeP2S12More preferably 75Li2S-25P2S5。
4. A production method according to claim 2 or 3, wherein said second solid electrolyte solution comprises a soluble sulfide electrolyte and a solvent, said soluble sulfide electrolyte being dissolved in an organic solution;
preferably, the mass fraction of the solvent in the second solid electrolyte solution is 30-95%, and more preferably 60-90%.
5. The production method according to any one of claims 2 to 4, wherein the second solid electrolyte solution is disposed under a protective atmosphere;
preferably, the protective atmosphere comprises nitrogen.
6. The production method according to any one of claims 2 to 5, wherein the soluble sulfide electrolyte comprises Li6PS5X and/or Li9.54Si1.74P1.44S11.7Cl0.3；
Preferably, the Li6PS5X in X comprises one or a combination of at least two of Cl, Br or I, and is further preferably Li6PS5Cl；
Preferably, the solvent comprises an alcoholic solvent;
preferably, the alcohol solvent comprises methanol and/or ethanol, and further preferably ethanol.
7. The production method according to any one of claims 2 to 6, wherein the injection is performed by vacuum injection;
preferably, the vacuum degree of the vacuum injection is 40-90 kPa.
8. The production method according to any one of claims 2 to 7, wherein the drying manner is vacuum drying;
preferably, the temperature of the vacuum drying is 50-200 ℃.
9. The process according to any one of claims 2 to 8, wherein step (II) is carried out at least once.
10. An all-solid battery, characterized in that the all-solid battery is prepared by the method for preparing an all-solid battery according to any one of claims 1 to 9.
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| WO2022193777A1 (en) * | 2021-03-18 | 2022-09-22 | 中国第一汽车股份有限公司 | Preparation method for all-solid-state battery, and all-solid-state battery |
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| CN111162309A (en) * | 2020-01-15 | 2020-05-15 | 东南大学 | Solid electrolyte-anode composite material and preparation and application methods thereof |
| CN111628139A (en) * | 2020-06-30 | 2020-09-04 | 中国第一汽车股份有限公司 | All-solid-state battery electrode and preparation method and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022193777A1 (en) * | 2021-03-18 | 2022-09-22 | 中国第一汽车股份有限公司 | Preparation method for all-solid-state battery, and all-solid-state battery |
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| WO2022193777A1 (en) | 2022-09-22 |
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