Pressurizing device, processing system and method for producing solid-state raw material for all-solid-state batteries

Abstract

To provide a pressure device and processing system for all-solid battery materials, capable of making all raw materials constituting an all-solid battery be in even arrangement by compressing them evenly from all directions in a state in which sealability and operability and maintainability after processing completion are secured.SOLUTION: A pressure device comprises a liquid supply tank for storing an organic solvent, a booster for pressing the organic solvent supplied from the liquid supply tank, and a pressure container to which the organic solvent discharged from the booster is supplied and in which all-solid battery raw materials are arranged.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a pressurizing device for raw materials for all-solid-state batteries. , PROCESSING SYSTEM AND METHOD FOR PRODUCING SOLID-STATE ALL-SOLID-STATE BATTERY MATERIALS - Patent application Regarding. [Background technology]

[0002] In conventional batteries using liquid electrolyte materials, such as lithium-ion batteries, the positive and negative electrode materials are separated by a separator, with a liquid binder placed in the gap. The positive electrode material is Ni, Mn, Co, LiCoO2, etc. The negative electrode material is graphite, etc. The separator is a porous resin. The binder is a polymer material. Research is being conducted on improvements to the positive electrode material, negative electrode material, separator, and binder themselves, as well as improvements to the packaging method for the battery.

[0003] In recent years, batteries that use solid electrolyte materials instead of liquid binders (electrolyte materials) have been considered. Batteries that use solid electrolyte materials do not require separators. Efforts are being made to increase the freedom of charge movement between the positive and negative electrode materials to generate electricity, and to improve the current output efficiency. As the positive electrode material, negative electrode material, and solid electrolyte material are all composed of solids, they are called all-solid-state batteries. Oxide-based solid electrolyte materials and sulfide-based solid electrolyte materials are being considered as solid electrolyte materials for use in all-solid-state batteries.

[0004] Patent Document 1 discloses a method for producing an all-solid-state battery in which the all-solid-state battery element is pressurized with a molten resin (in a fluid), thereby preventing the battery characteristics from being impaired even if the battery case swells when sealing the battery or the electrodes expand and contract during charging and discharging. It also discloses that a pressure of 50 to 10,000 kgf / cm2 is preferably applied to the all-solid-state battery element because no effect of pressurization is observed when the pressure is 50 kgf / cm2 or less, and cracks occur in the all-solid-state battery element and battery performance deteriorates when the pressure is 10,000 kgf / cm2 or more.

[0005] Furthermore, the method for producing an all-solid-state battery described in Patent Document 2 discloses that a pressurizing step is performed in which an isostatic pressurization is performed on a pressurized body having a positive electrode active material layer, a negative electrode active material layer, and a solid electrolyte layer, thereby making it possible to prevent cracking, peeling, minute deformation, and warping of the electrode active material layer. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2000-106154 A [Patent Document 2] Republished Patent No. 2012-164723 Summary of the Invention [Problem to be solved by the invention]

[0007] However, unlike liquid batteries, all-solid-state batteries do not have separators. Therefore, in order to make the positive electrode material, negative electrode material, and solid electrolyte material uniform, it is necessary to increase the uniformity of each material and all the materials that make up the battery. In addition, there is no established method for pressing the positive electrode material, negative electrode material, and solid electrolyte material together into a solid body.

[0008] Oxide-based solid electrolyte materials include La, Li, Ti, O, etc. These materials have high hardness and are not easy to compress into a solid body. In addition, because these materials are hard, it is difficult to miniaturize the solid electrolyte materials. Sulfide-based solid electrolyte materials are composed of Li, Ge, P, S, etc. These materials are soft and difficult to maintain uniformity and form into a solid body. Furthermore, sulfide-based solid electrolyte materials have the property of reacting with water. When sulfide-based solid electrolyte materials react with water, highly toxic gases derived from sulfides are generated, which may harm workers and battery users.

[0009] Both oxide-based and sulfide-based solid electrolyte materials have these issues, and solid electrolyte materials have not yet been mass-produced. In particular, to produce sulfide-based solid electrolyte materials, it is necessary to develop equipment that ensures airtightness and ease of operation and maintenance after processing is complete.

[0010] Furthermore, even if the material is compressed into a single solid body by pressing, it is difficult to compress it evenly from all directions using mechanical compression such as a press, and there was a need to develop an efficient compression method.

[0011] Patent Documents 1 and 2 disclose an apparatus configuration related to a hydrostatic press for sealing an all-solid-state battery element with a resin. However, the oxide-based solid electrolyte material and sulfide-based solid electrolyte material used in all-solid-state batteries may induce oxidation when exposed to water, or may vaporize as toxic hydrogen sulfide and have adverse effects on the human body. Patent Documents 1 and 2 do not disclose an apparatus configuration for solving such problems.

[0012] The present invention achieves uniform arrangement and compression of all the materials constituting the all-solid-state battery by applying compression evenly from all directions while ensuring airtightness and ease of operation and maintenance after processing is completed. Things to do The purpose is to:

[0013] In the present invention, a pressurizing device for raw materials for all-solid-state batteries , PROCESSING SYSTEM AND METHOD FOR PRODUCING SOLID-STATE ALL-SOLID-STATE BATTERY MATERIALS - Patent application The purpose is to provide. [Means for solving the problem]

[0014] The pressurizing device of the present invention includes a supply tank for storing an organic solvent, a pressure booster for pressurizing the organic solvent supplied from the supply tank, and a pressure booster for supplying the organic solvent discharged from the pressure booster to an all-solid-state battery. for a pressure vessel in which the raw material is placed; a sealing section that seals a space including the pressure vessel, an inert gas supply section that supplies an inert gas to the sealing section, and a gas circulation and purification section that circulates and purifies the inert gas; has.

[0015] The processing system of the present invention includes a pressure device and an all-solid-state battery. for and an atomization device for atomizing the raw material. A method for producing a solid all-solid-state battery raw material according to the present invention includes accommodating a pressure vessel in a space sealed by a sealing part, disposing a powdered all-solid-state battery raw material inside the pressure vessel, supplying an inert gas into the sealed part to replace the atmosphere inside the sealed part with the inert gas by an inert gas supply part, circulating and purifying the inert gas in the sealed part by a gas circulation purification part, pressurizing an organic solvent supplied from a liquid supply tank with a pressure booster and supplying it to the pressure vessel, and compressing and molding the all-solid-state battery raw material. Effect of the Invention

[0016] Pressurizing device and processing system of the present invention and a method for producing a solid-state raw material for an all-solid-state battery According to the method, it is possible to provide a raw material for an all-solid-state battery in which all materials constituting the all-solid-state battery can be uniformly arranged by compressing the raw material evenly from all directions while ensuring airtightness and ease of operation and maintenance after completion of processing. [Brief description of the drawings]

[0017] [Figure 1] 1 is a block diagram of a pressure device according to the present embodiment. [Diagram 2] 1 is a block diagram of a pressure device according to the present embodiment (variation 1); [Diagram 3] 1A and 1B are cross-sectional views of a cover position adjustment portion according to the present embodiment; [Figure 4] FIG. 3 is a cross-sectional view showing the details of the check valve of the present embodiment. [Diagram 5] 1 is a block diagram of a pressure device according to the second embodiment of the present invention; [Figure 6] FIG. 1 is a configuration diagram of a processing system according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, the embodiments will be described with reference to the drawings as appropriate.

[0019] (Configuration of the pressure device) The pressurizing device 1 of this embodiment is an apparatus for performing compression molding of an all-solid-state battery raw material M1, as shown in Fig. 1. The pressurizing treatment can be performed by pressurizing the all-solid-state battery raw material M within a range of 10 to 800 MPa in a pressure vessel 4 of the pressurizing device 1. The pressurizing device 1 has a liquid supply tank 2, a pressure booster 3, and the pressure vessel 4.

[0020] The supply liquid tank 2 is a tank for storing an organic solvent M2, as shown in Fig. 1. As shown in Fig. 1 and Fig. 2, the entirety (exterior) or part of the supply liquid tank 2 can be sealed with a glove box or the like so as not to come into contact with the outside air.

[0021] Since the use of water may adversely affect the raw material M1 for all-solid-state batteries, it is preferable to use an organic solvent M2 such as butyl butyrate. In order to use the organic solvent M2 as the pressurized fluid, it is necessary to manufacture the pressurizing device 1, as well as the piping connecting the internal elements of the pressurizing device 1, from a material that can withstand the organic solvent M2. For example, resins such as stainless steel and zirconia used in the food and pharmaceutical fields can be used. For example, all or part of the piping can be made of resin.

[0022] Specific examples of the organic solvent M2 that can be used as a non-aqueous dispersion medium include alcohol compound solvents, ether compound solvents, amide compound solvents, amino compound solvents, ketone compound solvents, aromatic compound solvents, aliphatic compound solvents, nitrile compound solvents, ester compound solvents, etc. Among these, amide compound solvents, hydrocarbon compound solvents (aromatic compound solvents and aliphatic compound solvents), ether compound solvents, ketone compound solvents, and ester compound solvents are preferred.

[0023] Examples of the alcohol compound solvent include methyl alcohol, ethyl alcohol, 1-propyl alcohol, 2-propyl alcohol, 2-butanol, ethylene glycol, propylene glycol, 1,6-hexanediol, cyclohexanediol, 1,3-butanediol, and 1,4-butanediol.

[0024] Examples of the ether compound solvent include alkylene glycols (triethylene glycol, etc.), alkylene glycol monoalkyl ethers (ethylene glycol monomethyl ether, etc.), alkylene glycol dialkyl ethers (ethylene glycol dimethyl ether, etc.), dialkyl ethers (diisopropyl ether, dibutyl ether, etc.), and cyclic ethers (tetrahydrofuran, dioxane (including 1,2-, 1,3-, and 1,4-isomers), etc.).

[0025] Examples of amide compound solvents include N,N-dimethylformamide, N-methyl-2-pyrrolidone, 2-pyrrolidinone, 1,3-dimethyl-2-imidazolidinone, 2-pyrrolidinone, ε-caprolactam, formamide, N-methylformamide, acetamide, N-methylacetamide, N,N-dimethylacetamide, N-methylpropanamide, and hexamethylphosphoric triamide.

[0026] Examples of the amino compound solvent include triethylamine, diisopropylethylamine, and tributylamine.

[0027] Examples of the ketone compound solvent include acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclopentanone, cyclohexanone, cycloheptanone, dipropyl ketone, dibutyl ketone, diisopropyl ketone, diisobutyl ketone, isobutyl propyl ketone, sec-butyl propyl ketone, pentyl propyl ketone, and butyl propyl ketone.

[0028] Examples of aromatic compound solvents include benzene, toluene, xylene, etc. Examples of aliphatic compound solvents include hexane, heptane, octane, decane, cyclohexane, cyclooctane, paraffin, gasoline, naphtha, kerosene, diesel, etc.

[0029] Examples of the nitrile compound solvent include acetonitrile, propylonitrile, and isobutyronitrile.

[0030] Examples of ester compound solvents include ethyl acetate, butyl acetate, propyl acetate, propyl butyrate, isopropyl butyrate, butyl butyrate, isobutyl butyrate, butyl pentanoate, ethyl isobutyrate, propyl isobutyrate, isopropyl isobutyrate, isobutyl isobutyrate, propyl pivalate, isopropyl pivalate, butyl pivalate, and isobutyl pivalate.

[0031] The non-aqueous dispersion medium contained in the solvent may be one type or two or more types, and preferably two or more types. When the solvent contains two or more types of non-aqueous dispersion medium, a combination of two or more types of non-aqueous dispersion medium selected from the group consisting of hydrocarbon compound solvents, ether compound solvents, ketone compound solvents, and ester compound solvents is preferred.

[0032] As shown in Fig. 1, the pressure intensifier 3 increases or decreases the pressure in the pressurizing chamber by the reciprocation of a piston, thereby increasing the pressure of the fluid passing through the pressurizing device 1 within a range of 10 to 800 MPa. As shown in Fig. 1, like the liquid supply tank 2, the whole (exterior) or part of the pressure intensifier 3 can be sealed in a glove box or the like so as not to come into contact with the outside air.

[0033] 5, a servo motor 3A can also be used as a modified example of the booster 3. That is, when driving the booster 3, a hydraulic pump or the like (not shown) is often used, but by using the servo motor 3A driven by an electric motor 3B or the like, it is possible to achieve electrification.

[0034] As shown in FIG. 1, the pressure vessel 4 is a vessel for containing the raw material M for an all-solid-state battery, and is sealed with a lid 6. The pressure vessel 4 may be made of metal such as stainless steel or resin, and has a pressure-resistant specification. After the raw material M for an all-solid-state battery is contained in the pressure vessel 4, the inside of the pressure vessel 4 is sealed with the lid 6, thereby maintaining airtightness. The pressure vessel 4 is disposed or formed in the main body 5, and is fixed by a stand such as a frame. The lid 6 is a lid for opening and closing the pressure vessel 4. As shown in FIG. 1 and FIG. 2, the whole (exterior) or part of the pressure vessel 4 can be sealed with a glove box or the like so as not to come into contact with the outside air.

[0035] The pressurizing device 1 is used under high pressure conditions of 10 to 800 MPa, and the internal pressure of the pressure vessel 4 must be secured when pressurized. The lid 6 and the pressure vessel 4 can be tightly sealed by fastening members such as bolts or screw members. In addition, not only manual but also automatic fixing methods can be appropriately selected.

[0036] For example, as shown in Fig. 3(a), a lid position adjustment unit 6a for automatically adjusting the position of the lid 6 can be disposed. The lid 6 can be automatically opened and closed by the lid-side guide unit 6b formed on the side of the lid 6 moving up and down along the lid-position adjustment unit-side guide unit 6c formed on the side of the lid position adjustment unit 6a. In this embodiment, the lid 6 moves up and down, but it can also be configured to move not only up and down (Z-axis direction) but also left and right (X-axis direction, Y-axis direction).

[0037] Furthermore, as shown in FIG. 3(b), instead of using the shaft configuration in FIG. 3(a), a support part 6e fixed to the lid 6 can be rotated / turned about a rotating shaft 6d as a lid position adjustment part 6a for automatically adjusting the position of the lid 6.

[0038] The sealing unit 7 is a box-shaped casing as shown in Fig. 1. The sealing unit 7 seals the entire or part of the pressurizing device 1 as shown in Figs. 1 and 2. To ensure airtightness, the sealing unit 7 has a shape that covers the entire surface except for the lower surface of a rectangular parallelepiped or cube. The sealing unit 7 may also have a vent hole or the like for ventilation with the outside.

[0039] 1, the sealing portion 7 may be provided with a seal portion 10. The seal portion 10 may be a member such as rubber, an O-ring, or a packing, as long as it can maintain the hermeticity. However, since it comes into contact with the organic solvent M2, it is necessary to select a material that is resistant to the solvent.

[0040] As shown in FIG. 1, the inert gas supply unit 8 has an inert gas supply source (not shown) that supplies the inert gas F to the sealed portion 7. The inert gas F is, for example, nitrogen or argon. By filling the sealed portion 7 with the inert gas F, even if the all-solid-state battery raw material M1 (sulfide-based solid electrolyte material) reacts with water and highly toxic gas derived from sulfide is generated, activation of the gas can be prevented. By removing the dissolved oxygen remaining in the all-solid-state battery raw material M1, oxidation of the all-solid-state battery raw material M1 and the all-solid-state battery material E is prevented.

[0041] 1, the gas circulation purification unit 9 ensures the safety of the gas in the sealed unit 7. In particular, even if highly toxic gases are generated during the atomization process of a sulfide-based electrolyte material or the like, the gas circulation purification unit 9 sucks in the highly toxic gases and performs a process to reduce their toxicity.

[0042] Specifically, hydrogen sulfide irritates the mucous membranes of the eyes and is harmful to the human body when the hydrogen sulfide concentration in the space exceeds 10 ppm. Therefore, it is preferable to continuously ventilate the space so that the hydrogen sulfide concentration does not exceed 10 ppm. The inert gas supply unit 8 and the gas circulation purification unit 9 keep the hydrogen sulfide concentration in the sealed section 7 at 10 ppm or less, thereby ensuring the safety of the workers.

[0043] A detection unit 11 can also be disposed around the pressure vessel 4. The detection unit 11 can be a pressure sensor, a flow sensor, or the like for detecting the pressure and flow rate of the organic solvent M2 discharged from the pressure intensifier 3 and / or the pressure inside the pressure vessel 4.

[0044] The bag body 12 is a bag that can ensure airtightness and is made of a material that is not damaged or deteriorated by the organic solvent M2.

[0045] 1, 2, 4, etc., check valves 13 can be disposed on both ends of the pressure intensifier 3. By disposing the check valves 13, the pressure inside the pressure intensifier 3 can be maintained so as not to decrease, and the pressure of the organic solvent M2 can be stabilized. As shown in FIG. 4, the check valve 13 has a ball 13a, a ball receiver 13b, a biasing portion 13c, and a resin portion 13d.

[0046] The ball 13a may be any spherical member. Because it is a part that comes into frequent contact, it is desirable to use ceramic, resin, or other materials that are less susceptible to contamination. The ball receiver 13b receives (surrounds) the ball 13a and cushions the impact caused by pressure fluctuations. Metal materials such as SUS can be used. Furthermore, in addition to the ball receiver 13b, resin packing, seals, etc. can also be arranged. The biasing portion 13c biases the ball receiver 13b, and a spring or the like can be used. The resin portion 13d is arranged on the outside of the ball receiver 13b and is intended to improve resistance to various solvents.

[0047] 6, by disposing an atomization device 101 around the pressurization device 1, it can also be operated as a processing system 100. The atomization device 101 atomizes the raw material M1 for all-solid-state batteries. The raw material M for all-solid-state batteries pressurized within the range of 10 to 500 MPa by a pressure booster or the like is sprayed from an injection chamber 102.

[0048] As the all-solid-state battery raw material M1, for example, oxide-based solid electrolyte materials and sulfide-based solid electrolyte materials can be envisaged. Oxide-based solid electrolyte materials are La, Li, Ti, O, etc. Sulfide-based solid electrolyte materials are composed of Li, Ge, P, S, etc. As the solvent, in the case of oxide-based solid electrolyte materials, a combination that does not oxidize the material must be selected, and further, in the case of sulfide-based solid electrolyte materials, a combination that does not generate hydrogen sulfide must be selected.

[0049] 6, further automation can be achieved by using a robot R and a control device 14. The robot R is a collaborative robot, and is used to move the raw material M1 for all-solid-state batteries processed by the microparticulation device 101 to the pressurizing device 1.

[0050] The control device 14 controls appropriate operating conditions by storing, calculating, processing, etc., the numerical values ​​of the atomization device 101, the pressurization device 1, the inert gas supply unit 8, the gas circulation purification unit 9, etc. The amount of the raw material M1 for all-solid-state batteries supplied from the liquid supply pump, the pressure and discharge flow rate of the pressure booster, the number of treatments, etc. are adjusted to control the atomization device 101. The amount of the organic solvent M2 supplied from the liquid supply tank 2, the pressure and discharge flow rate of the pressure booster 3, the pressure inside the pressure vessel 4, etc. are adjusted to control the inert gas supply unit 8 and the gas circulation purification unit 9. Furthermore, it is possible to comprehensively control such numerical values ​​that need to be adjusted.

[0051] The procedure of the pressurizing process in the pressurizing device 1 of this embodiment will be described below.

[0052] First, the gas circulation purification unit 9 is operated to fill the sealed unit 7 with the inert gas F.

[0053] Next, the all-solid-state battery raw material M1 is packed in a sealed state in the bag 12. The bag 12 containing the all-solid-state battery raw material M1 is placed in the pressure vessel 4, and the lid 6 of the pressure vessel is closed.

[0054] Next, the organic solvent M2 stored in the supply tank 2 is pressurized to within a range of 10 to 800 Ma by the pressure booster 3. The pressurized organic solvent M2 is supplied into the pressure vessel 4. By supplying the pressurized organic solvent M2 into the pressure vessel 4, the inside of the pressure vessel 4 is gradually pressurized, and the raw material M1 for all-solid-state batteries is pressurized from all directions and solidified. The time for the pressurization process can be set to 10, 30 minutes, 1 hour, etc., depending on the capacity of the device.

[0055] Furthermore, as a pre-processing step of the pressure treatment, the raw material M1 for all-solid-state batteries can be atomized using the atomization device 101. The treatment procedure will be described.

[0056] First, the raw material M1 for all-solid-state batteries is pressurized in the range of 10 to 500 Ma by a pressure booster. The raw material M1 for all-solid-state batteries can be atomized by injecting the pressurized raw material M1 for all-solid-state batteries from the injection chamber 102. By uniformly adjusting the particle size of the raw material M1 for all-solid-state batteries, the performance of the processed material M1 for all-solid-state batteries solidified after the pressurization treatment can be stabilized.

[0057] Furthermore, as shown in Fig. 6, the work can be automated by disposing a robot R between the atomizer 101 and the pressurizing device 1. The bag 12 filled with the all-solid-state battery raw material M1 atomized by the atomizer 101 (by injecting the all-solid-state battery raw material M1 pressurized within the range of 10 to 500 Ma from the injection chamber 102) is moved into the pressure vessel 4 of the pressurizing device 1 by the robot R, and the lid 6 is closed by the lid position adjustment unit 6a, and then the pressurizing device 1 is operated (pressurizing within the range of 10 to 800 Ma) to form a solidified all-solid-state battery raw material M1. Thereafter, the lid 6 is opened by the lid position adjustment unit 6a, and the solidified all-solid-state battery raw material M1 can be taken out by the robot R.

[0058] In carrying out the pressurization and atomization processes, as shown in FIG. 6, all or part (exterior) of the atomization device 101 and the pressurization device 1 are sealed in a glove box or the like to prevent contact with the outside air, and a state filled with inert gas from the inert gas supply unit 8 and the gas circulation purification unit 9 is maintained, thereby realizing highly accurate processing.

[0059] Furthermore, in order to automate the atomization device 101, the pressurization device 1, the inert gas supply unit 8, the gas circulation purification unit 9, etc., a control device 14 is used to store, calculate, process, etc. each numerical value, thereby controlling appropriate operating conditions.

[0060] As described above, the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be modified appropriately without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0061] 1. Pressure device 2 Liquid supply tank 3. Booster 3A servo motor 3B Hydraulic Motor 4. Pressure Vessels 5. Main unit 6 Lid 6a Lid position adjustment section 6b Lid side guide 6c Lid position adjustment part side guide part 6d Rotation Axis 6e Support part 7 Sealed part 8 Inert gas supply section 9. Gas Circulation and Purification Department 10 Seal part 11 Detection unit 12 Bag body 13. Check valve 14 Control device 100 Processing Systems 101 Atomization device 102 Injection chamber M1 Raw material for all-solid-state batteries M2 organic solvent R Robot

Claims

1. a supply tank for storing an organic solvent; a pressure booster that pressurizes the organic solvent supplied from the supply tank; a pressure vessel to which the organic solvent discharged from the pressure booster is supplied and in which the raw material for an all-solid-state battery is placed; A sealing part that seals a space including the pressure vessel; an inert gas supply unit for supplying an inert gas to the sealed portion; a gas circulation purification section for circulating and purifying the inert gas; A pressure applying device having the above structure.

2. The pressurizing device according to claim 1 , wherein the sealing portion has a seal portion that seals the entirety or a part of the pressurizing device.

3. a detection unit that detects the pressure of the organic solvent discharged from the pressure booster and / or the pressure inside the pressure vessel, The pressure applying device according to claim 1 or 2.

4. The pressure vessel is provided with a bag for sealing the all-solid-state battery raw material. The pressure applying device according to any one of claims 1 to 3.

5. The pressure vessel has a lid for sealing the inside, and a lid position adjustment unit for automatically opening and closing the lid. The pressure applying device according to any one of claims 1 to 4.

6. A pressure applying device according to any one of claims 1 to 5, and a microparticulation device for microparticulating the raw material for the all-solid-state battery; Processing system.

7. The atomization device has an injection chamber for atomizing the raw material for the all-solid-state battery, The processing system of claim 6 .

8. A pressure vessel is contained in a space sealed by a sealing portion, and a powder of an all-solid-state battery raw material is placed inside the pressure vessel; an inert gas supply unit supplies an inert gas into the sealed portion to replace the inside of the sealed portion with the inert gas; A gas circulation purification unit circulates and purifies the inert gas in the sealed unit, an organic solvent supplied from a supply tank is pressurized by a pressure booster and supplied to the pressure vessel, and the raw material for the all-solid-state battery is compressed and molded; A method for producing solid-state battery materials.

9. Furthermore, The powdered raw material for an all-solid-state battery is sealed in a bag, The raw material for an all-solid-state battery sealed in the bag is placed inside the pressure vessel. A method for producing the solid-state raw material for an all-solid-state battery according to claim 8.

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