KR-20260063444-A - MANUFACTURING APPARATUS FOR ALL-SOLID-STATE BATTERY AND MANUFACTURING METHOD FOR ALL-SOLID-STATE BATTERY

Abstract

The present invention relates to an all-solid-state battery manufacturing apparatus, and more specifically, comprises a chamber portion having a pressurized space formed therein, a door portion for opening and closing the pressurized space, a sealing unit disposed in the pressurized space, the sealing unit being configured to accommodate a pressurized unit inside, and a pressurized fluid supply portion for supplying a pressurized fluid to the pressurized space, wherein the sealing unit comprises an elastic material, the pressurized unit comprises an all-solid-state battery cell, and the pressurized fluid may be configured to pressurize the sealing unit.

Inventors

• 지대영
• 황보중

Assignees

• 삼성에스디아이 주식회사

Dates

Publication Date

20260507

Application Date

20241030

Claims (20)

1. A chamber section having a pressurized space formed inside; A door part for opening and closing the above-mentioned pressurized space; A sealing unit disposed in the above-mentioned pressurized space, wherein the sealing unit is configured to accommodate a pressurized unit within itself; and A pressurized fluid supply unit that supplies pressurized fluid to the above-mentioned pressurized space; comprising The above sealing unit includes an elastic material, and The above pressurizing unit includes an all-solid-state battery cell, and A solid-state battery manufacturing apparatus configured such that the above pressurized fluid pressurizes the above sealing unit.
2. In paragraph 1, The above chamber part is, A chamber body having the above-mentioned pressurized space formed therein, an opening hole formed in the front portion of the chamber body, and the opening hole is connected to the above-mentioned pressurized space; An inlet disposed in the chamber body and communicating with the pressurized space, wherein the pressurized fluid is introduced through the inlet; and Includes an outlet spaced apart from the inlet in the chamber body; A solid-state battery manufacturing apparatus in which the above-mentioned outlet is connected to the above-mentioned pressurized space and the above-mentioned pressurized fluid is discharged through the above-mentioned outlet.
3. In paragraph 2, The above pressurized fluid supply unit is, An inlet valve connected to the above-mentioned inlet and configured to open and close the above-mentioned inlet; An outlet valve connected to the above outlet and configured to open and close the above outlet; and A pump unit connected to the inlet valve and the outlet valve; A solid-state battery manufacturing apparatus including
4. In paragraph 3, The above pressurized fluid supply unit is, It further includes a heat exchange unit disposed between the pump unit and the inlet, A solid-state battery manufacturing apparatus in which the above heat exchange unit is configured to control the temperature of the above pressurized fluid.
5. In paragraph 4, The above pressurized fluid supply unit is, A temperature measuring sensor for measuring the temperature value of a pressurized fluid existing in the above-mentioned pressurized space; A solid-state battery manufacturing apparatus further comprising
6. In paragraph 3, The above pressurized fluid supply unit is, A pressure measuring sensor for measuring the hydraulic pressure of a pressurized fluid present in the above-mentioned pressurized space; A solid-state battery manufacturing apparatus further comprising
7. In paragraph 1, The above sealing unit is, A sealing body having a receiving space formed inside, an opening formed on the front surface of the sealing body; and A connector connecting the above sealing body to the chamber portion; comprising The above sealing body and the above connecting body include the above elastic material, The above-mentioned pressurizing unit is a solid-state battery manufacturing device disposed in the above-mentioned receiving space.
8. In Paragraph 7, A gas control unit inserted into the above sealing body and controlling the gas in the above receiving space; A solid-state battery manufacturing apparatus further comprising
9. In paragraph 8, The above gas control unit is, A nozzle body inserted into the above sealing body; A control pump connected to the nozzle body and supplying gas to the nozzle body; and A moving means connected to the nozzle body and moving the nozzle body toward the sealing body; A solid-state battery manufacturing apparatus including
10. In paragraph 8, The above gas control unit is, A solid-state battery manufacturing apparatus that injects gas into the above receiving space to expand the size of the sealing body or removes gas from the above receiving space so that the sealing body adheres to the above pressurizing unit.
11. In Paragraph 10, It further includes a fixing unit for fixing the shape of the sealing body with expanded size, and The above fixed unit is, A plurality of fixing bars inserted into the above receiving space, the plurality of fixing bars are spaced apart from each other and support the inner surface of the sealing body; and A moving part that moves the plurality of fixed bars toward the receiving space; A solid-state battery manufacturing apparatus comprising
12. In paragraph 2, The above door section is, A door body coupled to the chamber body and sealing the pressurized space; and An opening/closing unit that connects the above door body to the above chamber body; A solid-state battery manufacturing apparatus including
13. In Paragraph 12, The above-mentioned opening and closing unit is, A hydraulic cylinder rotatably connected to the manufacturing equipment by a first hinge part; A rod connected to the above hydraulic cylinder; An opening/closing arm rotatably connected to the chamber body by a shaft, the shaft being disposed on one side of the opening/closing arm; and A second hinge portion connecting the end of the rod, the other side of the opening/closing arm, and the door body; A solid-state battery manufacturing apparatus comprising
14. In Paragraph 12, Packing disposed on the above door body; and It further includes a packing groove disposed in the chamber body; and A solid-state battery manufacturing device in which, when the door body and the chamber body are combined, the packing is coupled to the packing groove.
15. In paragraph 1, The above-mentioned pressurizing unit is, A plurality of jigs respectively disposed on one side and the other side of the above-mentioned all-solid-state battery cell; A solid-state battery manufacturing apparatus further comprising
16. Supplying gas to the receiving space of the sealing body to expand the size of the sealing body, wherein the sealing body is placed in the pressurized space of the chamber part; Inserting a fixing bar into the receiving space of the sealing body to fix the shape of the sealing body with expanded size; Inserting a pressurizing unit into the receiving space of the sealing body; Removing the fixing bar from the receiving space of the sealing body; Sealing the above-mentioned pressurized space; and supplying a pressurized fluid to the pressurized space to pressurize the pressurized unit; including A method for manufacturing an all-solid-state battery, wherein the above-mentioned pressurizing unit includes an all-solid-state battery cell.
17. In Paragraph 16, After removing the fixing bar from the receiving space of the sealing body, Removing the gas from the receiving space of the sealing body; A method for manufacturing an all-solid-state battery, further comprising
18. In Paragraph 17, The above sealing body includes an elastic material, and The above-mentioned pressurizing unit further includes a pair of jigs disposed respectively on one side and the other side of the all-solid-state battery cell, and A method for manufacturing an all-solid-state battery in which the sealing body is in close contact with the jig.
19. In Paragraph 16, Pressurizing the above-mentioned all-solid-state battery cell is, Measuring the temperature of the pressurized fluid present in the pressurized space; and Controlling the temperature of the above-mentioned pressurized fluid; A method for manufacturing an all-solid-state battery comprising
20. In Paragraph 16, Pressurizing the above-mentioned all-solid-state battery cell is, Measuring the hydraulic pressure of the pressurized fluid present in the pressurized space; and Controlling the hydraulic pressure of the above-mentioned pressurized fluid; A method for manufacturing an all-solid-state battery comprising

Description

Manufacturing apparatus for all-solid-state battery and manufacturing method for all-solid-state battery The present invention relates to an apparatus for manufacturing an all-solid-state battery and a method for manufacturing an all-solid-state battery, and more specifically, to an apparatus for manufacturing a wet isotropically pressurized all-solid-state battery and a method for manufacturing an all-solid-state battery that improves process efficiency by omitting the packaging and unpackaging processes of sealing pouching. In response to recent industrial demands, the development of batteries with high energy density and safety is actively underway. Recently, all-solid-state batteries, which replace liquid electrolytes with solid electrolytes, have been proposed. An all-solid-state battery is a battery formed by stacking a positive electrode, a solid electrolyte, and a negative electrode, and then densifying them under pressure; it utilizes a solid electrolyte instead of the liquid electrolyte found in conventional rechargeable batteries. By not using flammable organic dispersion media, all-solid-state batteries can significantly reduce the likelihood of fire or explosion in the event of a short circuit. Consequently, these all-solid-state batteries possess high safety. All-solid-state batteries require densification of the structure to activate the solid electrolyte. An isotropic pressurization process can be applied to densify the structure. The isotropic pressurization process can be divided into dry isotropic pressurization processes and wet isotropic pressurization processes. The double wet isotropic pressurization process is a process of isotropically pressurizing the surface of an all-solid-state battery using water, oil, etc., and the all-solid-state battery must be packaged in a sealing pouch to prevent contact with water, oil, etc., and unpackaged after pressurization. The packaging and unpackaging processes of such sealing pouches can increase the number of process steps and impede process efficiency. FIG. 1 is a cross-sectional view showing an all-solid-state battery cell (unit cell) according to embodiments of the present invention. FIG. 2a is a drawing showing an all-solid-state battery manufacturing apparatus according to embodiments of the present invention. FIG. 2b is a cross-sectional view showing an all-solid-state battery manufacturing apparatus according to embodiments of the present invention. FIG. 3a is a drawing showing a door portion according to embodiments of the present invention. FIGS. 3B and FIGS. 3C are drawings showing the operating state of a door part according to embodiments of the present invention. FIG. 4a is a drawing showing one form of a pressurizing unit according to embodiments of the present invention. FIG. 4b is a drawing showing another form of a pressurizing unit according to embodiments of the present invention. FIGS. 5a to 5c are drawings showing various forms in which a fixing bar according to embodiments of the present invention fixes the shape of a sealing body. FIGS. 6a to 6i are drawings showing the operating state of an all-solid-state battery manufacturing apparatus according to embodiments of the present invention. FIG. 7 is a diagram showing a method for manufacturing an all-solid-state battery according to embodiments of the present invention. In order to fully understand the structure and effects of the present invention, preferred embodiments of the present invention are described with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms and various modifications can be made. The description of these embodiments is provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. In this specification, when a component is described as being on another component, it means that it may be formed directly on the other component or that a third component may be interposed between them. Additionally, in the drawings, the thicknesses of the components are exaggerated for the effective description of the technical content. Throughout the specification, parts indicated by the same reference numeral represent the same components. The embodiments described herein will be described with reference to cross-sectional and/or plan views, which are exemplary illustrations of the invention. In the drawings, the thicknesses of films and regions are exaggerated for effective description of the technical content. Accordingly, the regions illustrated in the drawings are schematic in nature, and the shapes of the regions illustrated in the drawings are intended to illustrate specific forms of regions of the device and are not intended to limit the scope of the invention. Although terms such as first, second, third, etc., have been used to describe various components in the