KR102730348B1 - All solid state battery manufacturing device - Google Patents

Abstract

One embodiment of the present invention provides an all-solid-state battery manufacturing apparatus including a holder on one surface of which a workpiece is placed, a pressurizing unit including a body portion and a platen portion disposed on the one surface of the holder and pressurizing the workpiece placed on the holder with a preset pressure, and a body portion and a platen portion disposed at one end of the body portion and including a receiving space formed concavely with a constant curvature toward the body portion, and a pressurizing pad disposed at one end of the pressurizing unit and made of an elastic material that presses the workpiece, the pressurizing pad presses the workpiece through a flat surface, thereby providing an all-solid-state battery manufacturing apparatus that pressurizes the workpiece more efficiently.

Description

ALL SOLID STATE BATTERY MANUFACTURING DEVICE

The present invention relates to an all-solid-state battery manufacturing device.

Lithium-ion batteries have reached the limit of performance improvement, and recently, all-solid batteries that replace the electrolyte with a solid electrolyte have been attracting attention. Compared to secondary batteries that use liquid electrolyte, all-solid batteries do not have electrolyte decomposition caused by overcharging of the battery, and also have high cycle durability and energy density.

Because it is a solid, it is not only safer due to less risk from temperature changes and external impacts, but its energy density is also higher than that of lithium-ion batteries.

Meanwhile, it is known that the contact resistance between active material particles responsible for the battery reaction, or between active material particles and solid electrolyte particles, has a significant impact on the internal resistance of the battery in an all-solid-state battery, and a technology is being proposed to suppress the increase in internal resistance, etc. by improving the contact between such active material particles, or between active material particles and solid electrolyte particles.

As a method for manufacturing an all-solid-state battery to improve the contact between such particles, a method for bringing the particles into close contact with each other so that the gaps between the particles are minimized has been proposed, and methods for manufacturing an all-solid-state battery by pressurizing the particles have been proposed.

However, there was a problem in that the previously proposed solid-state battery manufacturing method did not sufficiently remove the pores within the solid-state battery, or the solid-state battery was damaged during the pressurizing process, thereby reducing the performance of the battery. Accordingly, there is a need for an all-solid-state battery manufacturing device that sufficiently removes the pores within the solid-state battery while preventing the solid-state battery from being damaged during the pressurizing process.

Republic of Korea Patent Publication No. 10-2022-0089332

The technical problem to be achieved by the present invention is to provide an all-solid-state battery manufacturing device capable of sufficiently removing voids within an all-solid-state battery.

In addition, another technical problem to be achieved by the present invention is to provide an all-solid-state battery manufacturing device capable of manufacturing a battery cell that is uniformly pressurized throughout.

In addition, another technical problem to be achieved by the present invention is to provide an all-solid-state battery manufacturing device that prevents the all-solid-state battery from being damaged even during a pressurizing process.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

In order to achieve the above technical problem, one embodiment of the present invention provides an all-solid-state battery manufacturing apparatus including a holder on one surface of which a workpiece is placed, a pressurizing unit including a body portion and a platen portion disposed on the one surface of the holder and pressurizing the workpiece placed on the holder with a preset pressure, and including a body portion and a receiving space formed concavely with a constant curvature toward the body portion, and a pressurizing pad disposed on one end of the pressurizing unit and made of an elastic material that presses the workpiece, the pressurizing pad pressurizing the workpiece through a flat surface.

In order to achieve the above technical task, one embodiment of the present invention provides an all-solid-state battery manufacturing apparatus including a holder on one surface of which a workpiece is placed, and a pressurizing unit disposed on the one surface of the holder and pressurizing the workpiece placed on the holder with a preset pressure, wherein the pressurizing unit includes a pressurizing pad that presses the workpiece at one end and includes a convex surface formed convexly with a constant curvature in the direction of the holder, and an area of the convex surface is larger than an area of the workpiece.

In order to achieve the above technical task, one embodiment of the present invention provides an all-solid-state battery manufacturing apparatus, including a holder including a holder on one surface of which a workpiece is held, and a buffer portion disposed adjacent to the holder and having an elastic member having a predetermined thickness, and a pressurizing unit disposed on the one surface of the holder and pressurizing the workpiece held on the holder at a preset pressure, wherein the buffer portion is formed to surround the entire side surface of the holder.

According to one embodiment of the present invention, an all-solid-state battery manufacturing device capable of sufficiently removing voids within an all-solid-state battery can be provided.

In addition, according to one embodiment of the present invention, an all-solid-state battery manufacturing device capable of manufacturing a battery cell that is uniformly pressurized throughout can be provided.

In addition, according to one embodiment of the present invention, an all-solid-state battery manufacturing device can be provided that prevents the all-solid-state battery from being damaged even during a pressurizing process.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

Figure 1 is an exemplary drawing of an all-solid-state battery manufacturing device provided by one embodiment of the present invention.
Figure 2 is an exemplary drawing of an all-solid-state battery manufacturing device provided by one embodiment of the present invention.
FIG. 3 is a drawing showing a plan view of a stand provided by one embodiment.
Figure 4 is an exemplary drawing of a pressurizing unit of an all-solid-state battery manufacturing device provided by one embodiment.
Figure 5 is an example drawing of the use of an all-solid-state battery manufacturing device provided by one embodiment.
Figures 6 and 7 are exemplary drawings of a pressurizing unit provided by one embodiment.
FIG. 8 is a drawing showing a process of a workpiece manufacturing device provided by one embodiment.
FIG. 9 is a drawing to assist in explaining the width of a pressurizing unit provided by one embodiment.

Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms, and therefore is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are assigned similar drawing reference numerals throughout the specification.

The terms first, second, A, B, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are only used to distinguish one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and/or includes any combination of a plurality of related described items or any item among a plurality of related described items.

Throughout the specification, when a part is said to be "connected (connected, contacted, joined)" to another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member in between. Also, when a part is said to "include" a certain component, this does not mean that other components are excluded, unless otherwise specifically stated, but that other components can be included.

The terminology used in this specification is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise.

In this specification, it should be understood that terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

When elements or layers are referred to as being "on" or "on" another element or layer, this includes not only directly on the other element or layer, but also whether there are other layers or elements intervening therebetween. Conversely, when elements or layers are referred to as being "directly on" or "directly above" an element, this means that there are no other intervening elements or layers.

A method has been proposed to bring particles into close contact so that the gaps between particles in an all-solid-state battery are minimized, and methods for manufacturing an all-solid-state battery by pressurizing the all-solid-state battery have been proposed. However, there have been problems in that the gaps in the all-solid-state battery are not sufficiently removed by the all-solid-state battery manufacturing methods proposed in the past, or the all-solid-state battery is damaged during the pressurizing process, resulting in a decrease in battery performance.

Accordingly, there is a need for an all-solid-state battery manufacturing device that can sufficiently remove voids within the all-solid-state battery while preventing the all-solid-state battery from being damaged during the pressurizing process.

Below, an all-solid-state battery manufacturing device (10) according to one embodiment of the present invention is described.

Figure 1 is an exemplary drawing of an all-solid-state battery manufacturing device provided by one embodiment of the present invention.

Referring to FIG. 1, in order to solve the above technical problem, one embodiment of the present invention provides an all-solid-state battery manufacturing device (10) including a holder (100) on which a workpiece (20) is placed and a pressurizing unit (200).

The stand (100) is configured such that a workpiece (20) is secured on one side.

The pressurizing unit (200) is configured to pressurize a workpiece (20) mounted on a stand (100), and one end of the pressurizing unit (200) includes a pressurizing pad (210) made of an elastic material that pressurizes the workpiece (20).

At this time, the processed material means including both a battery cell and a pouch-type battery, and furthermore, the battery cell means including both a mono-cell and a laminated cell, and may mean that it becomes an all-solid-state battery through a process such as pressurization, including a solid-state positive electrode material, an anode material, and a solid electrolyte.

A monocell is a single cell composed of the above-mentioned positive electrode layer, the above-mentioned negative electrode layer, and the above-mentioned solid electrolyte layer, and a laminated cell may refer to a cell in which a plurality of monocells are laminated.

The laminated cell may be a cell of a bipolar structure widely known in the art.

The cathode material may be any cathode material that can be commonly used for the cathode of a lithium secondary battery. For example, the cathode material may be lithium oxide. Specifically, the cathode material may be, but is not limited to, a layered compound such as lithium cobalt oxide (LiCoO ₂ ), lithium nickel oxide (LiNiO ₂ ), a compound substituted with one or more transition metals, a lithium manganese oxide such as LiMnO ₃ , LiMn ₂ O _{3 ,} a lithium copper oxide, a vanadium oxide such as LiV ₃ O ₈ , LiFe ₃ O ₄ , V ₂ O ₅ , Cu ₂ V ₂ O _{7 ,} a Ni-site type lithium nickel oxide, a lithium manganese composite oxide, or a combination thereof.

The negative electrode material may include any negative electrode material that can be commonly used in the negative electrode of a lithium secondary battery. For example, carbon such as non-graphitizable carbon, graphitic carbon (natural graphite, artificial graphite), metal composite oxides such as Li _x Fe ₂ O ₃ (0≤x≤1), Li _x WO ₂ (0≤x≤1), Sn _x Me _1-x Me' _y O _z (Me: Mn, Fe, Pb, Ge; Me': Al, B, P, Si, elements of group 1, 2, and 3 of the periodic table, halogen; 0<x≤1;1≤y≤3; 1≤z≤8), lithium metal, lithium alloy, silicon-based alloy, tin-based alloy, metal oxides such as SnO, SnO ₂ , PbO, PbO ₂ , Sb ₂ O ₃ , GeO, GeO ₂ , Bi ₂ O ₃ , Bi ₂ O _{4 ,} conductive polymers such as polyacetylene, Li-Co-Ni-based materials, titanium oxide, lithium titanium oxide, or a combination thereof can be used, but, It is not limited to this.

The solid electrolyte may be provided with, but is not limited to, sulfide-based materials such as LGPS (Li ₁₀ Ge P ₂ S ₁₂ ), LSPSCl (Li _9.54 Si _1.74 P _1.44 S _11.7 Cl _0.3 ), and Argyrodite; oxide-based materials such as Perovskite (LLTO), Garnet (LLZO), NASICON, and LISICON; or polymer-based materials such as PEO.

The solid electrolyte can be mixed with the positive electrode material to form a single layer. For example, the raw material powder of the solid electrolyte and the raw material powder of the positive electrode material can be mixed and formed in a mixed or adhered state to form the solid electrolyte layer and the positive electrode layer.

In addition, the workpiece may have various shapes and sizes depending on the location, shape, or industrial field of the product in which the solid-state battery is used, and may be, for example, a battery cell having a coin shape, a square shape, etc.

Below, the stand (100) is described.

As described above, the stand (100) has a workpiece (20) mounted on one surface.

Figure 2 is an exemplary drawing of an all-solid-state battery manufacturing device provided by one embodiment of the present invention.

FIG. 3 is a drawing showing a plan view of a stand provided by one embodiment.

Referring to FIGS. 2 and 3, in one embodiment, the stand (100) may include a mounting portion (110) on one side of which a workpiece (20) is mounted, and a buffer portion (120) disposed adjacent to the mounting portion (110) and formed to surround the entire side of the mounting portion. At this time, the buffer portion (120) includes an elastic member having a predetermined thickness.

When the workpiece (20) is pressurized by the pressurizing unit (200), the workpiece (20) expands in all directions perpendicular to the pressurizing direction. At this time, the buffer part (120) that is arranged adjacent to the mounting part (110) and formed to surround the entire side of the mounting part (110) controls the expansion of the workpiece (20) and can control its external shape.

The buffer section (120) includes an elastic member and, when the workpiece (20) is pressurized by the pressurizing unit (200) and the workpiece (20) expands in a horizontal direction in the pressurizing direction, it performs the function of fixing the outer shape of the workpiece (20).

In addition, the buffer section (120) performs the function of elastically supporting the edge portion of the pressurizing unit (200) when the pressurizing unit (200) described below pressurizes the workpiece (20), thereby enabling the workpiece (20) to be pressed more uniformly.

In this way, by including an elastic member in one area of the stand (100), even if the workpiece (20) expands during the use of the all-solid-state battery manufacturing device (10), the outer shape of the workpiece (20) can be maintained. This can prevent the performance of the all-solid-state battery from deteriorating.

In one embodiment, the elastic member may use the same material as the elastic material used in the pressurizing pad (210) described later, and the type of the elastic material may vary depending on the pressurizing conditions of the pressurizing unit (200) described later.

In one embodiment, the elastic member may include a rubber material, but is not limited to the above example, and it should be interpreted that all elastic materials that can be easily selected by a person skilled in the art and a pressure pad made of the same are within the scope of the present invention.

In one embodiment, by using a stand (100) including a buffer portion (120), the effect of supplementing the flatness between the press and the lower platen can be provided.

In one embodiment, the buffer portion (120) may include a fixing member (not shown) that is arranged on an outer perimeter (not shown) adjacent to the stand (100) and is fixed to the frame (130) of the stand (100).

In one embodiment, the buffer part (120) may be formed along the inner perimeter of the frame (130). At this time, the buffer part (120) may be damaged by repeated use of the all-solid-state battery manufacturing device (10). Accordingly, by including a fixing member (not shown) attached to the frame (130) of the stand (100) on the outer perimeter of the buffer part (120), the damaged buffer part (120) can be efficiently replaced.

In one embodiment, the fixing member enables the buffer portion (120) to be attached and detached from the frame (130) of the stand (100), and it should be interpreted that all fixing members that can be used by a technician with common knowledge in the art are within the scope of the present invention.

Below, the pressurizing unit (200) is described.

The pressurizing unit (200) is placed on one side of the stand (100) and can pressurize the workpiece (20) placed on the stand (100) at a preset pressure.

In one embodiment, the pressurizing unit (200) may be formed with a flat surface to uniformly pressurize the workpiece (20) mounted on the stand (100). In this case, the pressurizing unit (200) may be formed of a material having a certain stiffness, thereby preventing the pressurizing surface of the pressurizing unit (200) and the workpiece (20) from being absorbed by the pressurizing pressure.

In one embodiment, the preset pressure may vary depending on the thickness and type of the positive electrode material, negative electrode material, and solid electrolyte included in the target workpiece (20), and may vary depending on the intended use of the all-solid-state battery being manufactured. As an example, the pressurizing unit (200) may pressurize at a pressure of 2500 kN or less.

Figure 4 is a conceptual diagram explaining an all-solid-state battery manufacturing device according to another embodiment of the present invention.

Figure 5 is a drawing for explaining the operation of the all-solid-state battery manufacturing device of Figure 4.

Referring to FIG. 4, in one embodiment, the pressurizing unit (200) pressurizes the workpiece (20) at one end and further includes a pressurizing pad (210) made of an elastic material.

Referring to Fig. 5, the pressurizing unit (200) includes a pressurizing pad (210) made of an elastic material at one end, so that when the pressurizing unit (200) presses the workpiece (20), even if it presses at a high pressure, the workpiece (20) can be pressed more gently.

In one embodiment, the pressurizing pad (210) made of an elastic material can pressurize the workpiece (20) under the above pressure conditions, and while pressurizing the workpiece (20) under the above pressure conditions, an elastic material having appropriate elasticity and a certain hardness can be used in order to remove pores inside the workpiece (20) without damaging the positive electrode material, negative electrode material, and solid electrolyte of the workpiece (20). As an example, the pressurizing unit (200) can include an elastic material having an elastic modulus of 1 Mpa or more, and as another example, can include a pressurizing pad (210) of an elastic material having a modulus of elasticity of 1 Mpa to 100 Mpa or less. If the elastic modulus of the material included in the elastic pad is less than 1 MPa, the hardness of the material may be low and uniform pressure may not be transmitted to the workpiece (20) during the pressurizing process. If it exceeds 100 MPa, the material may become too hard and may not be able to perform the function of an elastic material.

In one embodiment, the pressure pad (210) made of an elastic material may include a rubber material, but is not limited to the above example, and it should be interpreted that all elastic materials that can be easily selected by a technician with common knowledge in the art and the pressure pad (210) made of the same are within the scope of the present invention.

In one embodiment, the pressure pad (210) may include a convex surface with a constant curvature in the direction of contact with the workpiece (20) toward the holder.

When the pressurizing unit (200) pressurizes the workpiece (20), a problem of stress being concentrated in the edge area of the workpiece (20) may occur. However, as can be seen from FIG. 5(b), the pressurizing unit (200) according to one embodiment of the present invention includes a pressurizing pad (210) having a convex surface with a constant curvature in the direction of the stand (100), thereby preventing the phenomenon of stress being concentrated in the edge area of the workpiece (20).

The term "convex" should be interpreted to include not only cases where a single curvature is formed, but also all shapes formed in multiple stages or steps so that the central area protrudes further out than the edge area.

Specifically, during the pressurizing process, the elastic pressure pad (210) formed thickly in the central region of the pressurizing unit (200) is compressed more than the edge of the pressure pad (210). Through this, the edge region of the pressure pad (210) presses the workpiece (20), so that the stress formed in the edge region of the workpiece (20) can be dispersed.

Meanwhile, if one end of the pressurizing unit (200) that comes into contact with the workpiece (20) is flat or concave, a phenomenon may occur in which the workpiece (20) is absorbed by the pressurizing unit (200) and does not fall off. However, by having the above structure, in the process of recovering the workpiece (20) after the pressurizing unit (200) pressurizes the workpiece (20), the workpiece (20) is prevented from being absorbed by the pressurizing unit (200), so that the workpiece (20) can be recovered more easily.

Figures 6 and 7 are exemplary drawings of a pressurizing unit provided by one embodiment.

Referring to FIG. 6, in one embodiment, the pressurizing unit (200) includes a body portion (220) and a pressurizing plate (225) arranged at one end of the pressurizing unit (200), and an area of the pressurizing plate (225) may include an accommodation space (S) that is concavely formed with a constant curvature toward the body portion (220).

By forming a concave shape with a constant curvature in this way, when performing a pressurizing process using a manufacturing device (10), the pressure within the pressurizing unit (200) can be distributed evenly, allowing for more stable and dense pressurization.

At this time, the pressure pad (210) is placed at one end of the pressure unit (200) and pressurizes the workpiece (20). More specifically, the pressure pad (210) can be placed at one area of the press plate (225) of the pressure unit (200).

FIG. 8 is a drawing showing a process of a battery cell manufacturing device provided by one embodiment.

Referring to FIG. 8, in one embodiment, the pressurizing pad (210) is arranged in one area of the platen (225), and the pressurizing pad can fill the receiving space (S) formed in one area of the platen (225). The pressurizing pad (210) is arranged in one area of the platen (225) and forms a shape that covers the upper portion of the receiving space (S) of the platen (225). At this time, by filling the receiving space (S) with the pressurizing pad (210), when pressurizing the workpiece (20) using the battery cell manufacturing device (10), the pressing forces (F1) applied to the upper portion of the battery cell can be all applied equally, thereby allowing a more uniform pressurizing process to be performed.

In addition, by making the press plate (225) concave toward the center of the body (200), the workpiece (20) can be pressed more efficiently during the pressing process, and the stress formed at the edge can be minimized.

The term "concave" should be interpreted to include not only cases where a single curvature is formed, but also all shapes where the central area is sunken compared to the edge areas by forming multiple stages or steps.

For example, referring again to FIG. 7, in one embodiment, the platen (225) may include a stepped shape. The platen (225) may include a first platen region (216) formed deeply in its central region and a second platen region (217a, 217b) formed by surrounding the outer side of the first platen region (216).

In one embodiment, the surface of one of the pressure pads (210) of the platen (225) that comes into contact with the workpiece (20) may be flat. When the platen (225) is formed concavely toward the center of the body (200), the surface of one side of the platen (225) that comes into contact with the workpiece (20) may be flat, thereby further minimizing the stress formed at the edge of the workpiece (20).

Referring again to FIGS. 6 and 7, in one embodiment, the pressure plate (225) may include a pressure plate peripheral region (226) that surrounds the receiving space (S) from the side, and the pressure pad (210) may include a pad peripheral region (215a, 215b) that is arranged at an edge of the pressure pad (210), wherein the pad peripheral region (215a, 215b) may be arranged adjacent to the pressure plate peripheral region (226).

In this way, by making the peripheral area (215a, 215b) of the press pad (210) adjacent to the platen peripheral area (226), the press pad (210) can be more stably attached to the platen (225), and the phenomenon of the press pad (210) being detached from the platen (225) during the process of the battery cell manufacturing device (10) can be prevented.

FIG. 9 is a drawing to assist in explaining the width of a pressurizing unit provided by one embodiment.

Referring to FIG. 9, in one embodiment, the area of the convex surface of the pressurizing pad (210) as viewed from the pressurizing direction of the pressurizing unit (200) may be equal to or greater than the area of the workpiece (20).

In one embodiment, the cross-section of the pressurizing pad (210) with the largest area in the pressurizing direction may be larger than the cross-section of the workpiece (20) with the largest area. If the cross-section of the pressurizing pad (210) with the largest area is smaller than the cross-section of the workpiece (20) with the largest area during the pressurizing process, uniform pressure may not be applied, and the workpiece (20) may be compressed during the pressurizing process and may come out of the pressurizing pad (210), and in this process, a problem of deterioration in the battery performance of the all-solid-state battery may also occur.

In one embodiment, the all-solid-state manufacturing device (10) may have a first width (W1) of the pressure pad (210) in one direction larger than a second width (W2) of the workpiece (20).

Through the above structure, at least one direction of the pressure pad (210) sufficiently covers the workpiece (20), thereby preventing the workpiece (20) from being rolled up over the pressure pad (210) and damaged during the pressurizing process.

In one embodiment, a region (S1) disposed at the edge of the pressure pad (210) may be disposed above a region (S2) of the buffer section (120). The workpiece (20) expands due to the pressure of the pressure pad (210), and at this time, depending on the pressure applied, the workpiece (20) may roll up outside the pressure unit (200) and its outer shape may be damaged.

However, if one area (S1) disposed at the edge of the pressure pad (210) is disposed above one area (S2) of the buffer section (120), even if the workpiece (20) expands, the pressure unit (200) and the buffer section (120) surround the workpiece (20), so the pressure pad (210) can be prevented from being rolled out of the pressure unit (200).

And in one embodiment, the all-solid-state battery manufacturing device (10) may further include a pressure measuring unit (300) that measures the pressure applied to the workpiece (20). At this time, the pressure measuring unit (300) may be a sensor that measures the pressure applied to the workpiece (20), such as a load cell.

As described above, the workpiece (20) that can be used in the all-solid-state battery manufacturing device (10) provided by one embodiment of the present invention may have various shapes and sizes, and accordingly, the all-solid-state battery manufacturing device (10) can measure the pressure applied to the workpiece (20) through the pressure measuring unit (300) and apply a uniform pressure to the workpiece (20).

An all-solid-state battery manufacturing device (10) according to one embodiment of the present invention can measure and record the applied pressure using a pressure measuring unit (300), thereby enabling mass production of an all-solid-state battery having a constant battery performance.

In one embodiment, a pressure measuring unit (300) that measures the pressure applied to the workpiece (20) may be connected to and arranged in the pressurizing unit (200).

In another embodiment, the pressure measuring unit (300) may be placed on the stand (100) to measure the pressurizing pressure while the pressurizing unit (200) pressurizes the workpiece (20). Alternatively, the pressure measuring unit (300) may be placed on both the stand (100) and the pressurizing unit (200).

The above description of the present invention is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential characteristics of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single component may be implemented in a distributed manner, and likewise, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the claims described below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

10: Manufacturing equipment
20: Battery cell
100: Stand
200: Pressurized unit
300: Pressure measuring unit

Claims (10)

A stand including a mounting portion on one side of which a workpiece is mounted;
A pressurizing unit, which is arranged on the one side of the above-mentioned stand and pressurizes the workpiece placed on the above-mentioned stand with a preset pressure, and includes a body part and a pressurizing unit, which is arranged on one end of the body part and includes a receiving space formed concavely with a constant curvature toward the body part; and
A pressure pad is disposed at one end of the above pressure unit and is made of an elastic material that pressurizes the workpiece, and pressurizes the workpiece through a flat surface;
An all-solid-state battery manufacturing device, wherein the above-mentioned stand is placed on the above-mentioned mounting portion, defines a space for receiving the workpiece, and further includes a buffer portion made of an elastic material having a predetermined thickness and surrounding the space. In the first paragraph,
An all-solid-state battery manufacturing device, wherein the pressure pad is filled in the receiving space of the above-mentioned pressure plate. In the first paragraph,
An all-solid-state battery manufacturing device further comprising a pressure measuring unit that measures the pressure applied to the workpiece while the pressurizing unit pressurizes the workpiece. A stand including a mounting portion on one side of which a workpiece is mounted; and
It includes a pressurizing unit which is placed on the one side of the above-mentioned stand and pressurizes the workpiece placed on the above-mentioned stand at a preset pressure;
The above pressurizing unit presses the workpiece at one end, and includes a pressurizing pad made of an elastic material and having a convex surface formed convexly with a constant curvature in the direction of the stand.
The area of the above convex surface is larger than the area of the workpiece,
An all-solid-state battery manufacturing device, wherein the above-mentioned stand is placed on the above-mentioned mounting portion, defines a space for receiving the workpiece, and further includes a buffer portion made of an elastic material having a predetermined thickness and surrounding the space. In paragraph 4,
An all-solid-state battery manufacturing device further comprising a pressure measuring unit that measures the pressure applied to the workpiece while the pressurizing unit pressurizes the workpiece. In paragraph 5,
An all-solid-state battery manufacturing device, wherein the above pressure measuring unit is connected and arranged to the above pressurizing unit. A stand including a mounting portion on one side of which a workpiece is mounted, and a buffer portion disposed on the mounting portion, defining a space for receiving the workpiece, surrounding the space, and having an elastic member having a predetermined thickness; and
An all-solid-state battery manufacturing device, comprising: a pressurizing unit disposed on the one side of the stand and pressurizing the workpiece mounted on the stand at a preset pressure; In Article 7,
The above pressurizing unit includes a pressurizing pad that pressurizes the workpiece at one end,
An all-solid-state battery manufacturing device, wherein the above-mentioned pressure pad simultaneously pressurizes the above-mentioned workpiece and a portion of the above-mentioned buffer section. In Article 8,
An all-solid-state battery manufacturing device, wherein the first width of the pressurizing pad in one direction is larger than the second width of the workpiece. In Article 7,
An all-solid-state battery manufacturing device further comprising a pressure measuring unit that measures the pressure applied to the workpiece while the pressurizing unit pressurizes the workpiece.