Manufacturing equipment and manufacturing method of all-solid-state battery cell and all-solid-state battery cell

Abstract

The invention discloses manufacturing equipment and a manufacturing method of an all-solid-state battery cell and the all-solid-state battery cell. The manufacturing equipment of the all-solid-state battery cell comprises a lamination table assembly, a hot-pressing composite assembly, a rotary glue spraying assembly and a control device, and the lamination table assembly is located on the upstream of the hot-pressing composite assembly and the rotary glue spraying assembly; the hot-pressing composite assembly is located at the upstream of the rotary glue spraying assembly, or the rotary glue spraying assembly is located at the upstream of the hot-pressing composite assembly; the lamination table assembly is used for laminating different unit sheets to form an initial battery cell; the hot-pressing compounding assembly is used for hot-pressing compounding, and the rotary glue spraying assembly is used for glue spraying positioning; and the control device is used for controlling the lamination table assembly, the hot-pressing composite assembly and the rotary glue spraying assembly. Through mutual cooperation of the lamination table assembly, the hot-pressing composite assembly and the rotary glue spraying assembly, different unit pieces can be stacked together, and the different unit pieces can be firmly bonded into a whole.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and more specifically, to manufacturing equipment and a manufacturing method of an all-solid-state battery cell, and an all-solid-state battery cell. Background Art

[0002] Solid-state batteries are a new type of battery technology that uses solid electrolytes instead of traditional liquid electrolytes. Compared with traditional lithium-ion batteries, solid-state batteries have higher energy density, faster charging speeds, higher safety and longer life. However, the current manufacturing methods of all-solid-state batteries on the market are not perfect enough and lack mature process procedures.

[0003] Liquid lithium-ion battery cells contain positive electrode sheets, negative electrode sheets and separators. The positive electrode sheets and negative electrode sheets are separated and insulated by separators through Z-stacking by a lithium battery stacking machine. At the same time, the separator has a certain viscosity and can bond the entire cell together. However, all-solid-state cells only contain positive electrode sheet units and negative electrode sheet units, and do not contain separators. Therefore, how to ensure the insulation of the positive electrode sheet unit and the negative electrode sheet unit and bond the positive and negative electrode sheet units into a whole has become a major problem to be solved in the manufacturing process of all-solid-state battery cells.

[0004] Currently, the cells of all-solid-state batteries on the market are generally made by manual or semi-automatic equipment, with low production efficiency and inability to guarantee production accuracy and consistency. Therefore, this is a technical problem that urgently needs to be solved in this field. Summary of the invention

[0005] In view of this, the present invention provides a manufacturing device for an all-solid-state battery cell, which is used to solve the problem in the prior art that the all-solid-state battery cell only contains a positive electrode sheet unit and a negative electrode sheet unit but does not contain a separator, and how to ensure the insulation of the positive electrode sheet unit and the negative electrode sheet unit.

[0006] In a first aspect, the present application provides a manufacturing device for an all-solid-state battery cell, comprising a lamination table assembly, a hot pressing composite assembly, a rotary glue spraying assembly, and a control device, wherein the lamination table assembly is located upstream of the hot pressing composite assembly and the rotary glue spraying assembly; the hot pressing composite assembly is located upstream of the rotary glue spraying assembly, or the rotary glue spraying assembly is located upstream of the hot pressing composite assembly;

[0007] The stacking table assembly is used to stack different unit sheets to form an initial battery cell, the hot pressing composite assembly is used for hot pressing composite, and the rotary glue spraying assembly is used for glue spraying positioning;

[0008] The control device is used to control the lamination table assembly, the hot pressing composite assembly and the rotary glue spraying assembly.

[0009] Optionally, the hot-pressed composite component includes a hydraulic system and a pressure piece; the pressure piece includes an upper pressure plate and a lower pressure plate that are arranged opposite to each other, the upper pressure plate is connected to the hydraulic system on the side away from the lower pressure plate, and the upper pressure plate and the lower pressure plate are respectively provided with heating cores, and the heating cores are used to generate heat; temperature sensors are distributed on the upper pressure plate and the lower pressure plate, and the temperature sensors are used to detect the temperature at different positions in the upper pressure plate and the lower pressure plate in real time; the hydraulic system, the heating core and the temperature sensor are respectively connected to the control device.

[0010] Optionally, the rotary glue spraying assembly includes a rotating mechanism, a glue spraying mechanism, a first visual inspection mechanism and a glue curing mechanism. The rotating mechanism is located below the glue spraying mechanism and the glue curing mechanism, and the first visual inspection mechanism is located above the glue spraying mechanism and the glue curing mechanism; the first visual inspection mechanism is used to take real-time photos of the initial battery cell, the rotating mechanism is used to rotate the initial battery cell, and the glue spraying mechanism is used to spray glue on the rotated initial battery cell; the glue curing mechanism is used to position the initial battery cell after glue spraying; the rotating mechanism, the glue spraying mechanism, the first visual inspection mechanism and the glue curing mechanism are respectively connected to the control device.

[0011] Optionally, the stacking table assembly includes a second visual inspection mechanism, a battery cell stacking table and a battery cell pressing structure, the battery cell pressing structure is located above the battery cell stacking table, and the second visual inspection mechanism is located on the side of the battery cell pressing structure away from the battery cell stacking table; the second visual inspection mechanism is used to take real-time photos of different unit cell positions, and the battery cell stacking table is used to drive the battery cell pressing structure to move to different unit cell positions along a first direction, a second direction and a rotation direction, wherein the first direction intersects with the second direction, and the rotation direction is to rotate the battery cell stacking table clockwise or counterclockwise, and the battery cell pressing structure is used to stack different unit cells and press the different stacked unit cells; the second visual inspection mechanism, the battery cell stacking table and the battery cell pressing structure are respectively connected to the control device.

[0012] Optionally, it also includes: a positive electrode unit preparation conveying mechanism, a negative electrode unit preparation conveying mechanism, a protective sheet preparation conveying structure, a lower cell stacking platform robot, an upper cell cache robot and a cache assembly, wherein the positive electrode unit preparation conveying mechanism, the negative electrode unit preparation conveying mechanism and the protective sheet preparation conveying structure are arranged in parallel; the lower cell stacking platform robot is located downstream of the stacking platform assembly and upstream of the upper cell cache robot; the cache assembly is located downstream of the upper cell cache robot and upstream of the hot pressing composite assembly, or the cache assembly is located downstream of the upper cell cache robot and upstream of the rotary spray assembly; the positive electrode unit preparation conveying mechanism, the negative electrode unit preparation conveying mechanism and the protective sheet preparation conveying structure are respectively used to convey different unit sheets to the stacking platform assembly; the lower cell stacking platform robot is used to grab the initial cell; the upper cell cache robot is used to transfer the initial cell grabbed by the lower cell stacking platform robot to the cache assembly.

[0013] Optionally, it also includes: a battery cell transfer robot, a battery cell unloading robot, a battery cell pull belt and a battery cell unloading assembly; the battery cell transfer robot is located downstream of the cache assembly and upstream of the hot pressing composite assembly; or, the battery cell transfer robot is located downstream of the cache assembly and upstream of the rotary spray assembly; the battery cell unloading robot is located downstream of the hot pressing composite assembly and upstream of the battery cell pull belt and the battery cell unloading assembly; or, the battery cell unloading robot is located downstream of the rotary spray assembly and upstream of the battery cell pull belt and the battery cell unloading assembly; the battery cell pull belt and the battery cell unloading assembly are arranged to intersect each other; when the cache assembly is located upstream of the hot pressing composite assembly, the battery cell transfer robot is used to transfer the initial battery cell placed in the cache assembly to the hot pressing composite station corresponding to the hot pressing composite assembly; the battery cell unloading robot is used to transfer the initial battery cell after hot pressing composite to the rotary spray assembly corresponding to the rotary spray assembly ; When the cache component is located upstream of the rotary glue spraying component, the battery cell transfer robot is used to transfer the initial battery cell placed in the cache component to the rotary glue spraying station corresponding to the rotary glue spraying component; the battery cell unloading robot is used to transfer the initial battery cell after hot pressing and compounding to the hot pressing and compounding station corresponding to the hot pressing and compounding component; when the battery cell unloading robot is located downstream of the hot pressing and compounding component, and upstream of the battery cell pull belt and the battery cell unloading component, the battery cell pull belt is used to transfer unqualified initial battery cells after hot pressing and compounding to the waste port; the battery cell unloading component is used to transfer qualified initial battery cells after hot pressing and compounding to the feeding port; when the battery cell unloading robot is located downstream of the rotary glue spraying component, and upstream of the battery cell pull belt and the battery cell unloading component, the battery cell pull belt is used to transfer unqualified initial battery cells after glue spraying positioning to the waste port; the battery cell unloading component is used to transfer qualified initial battery cells after glue spraying positioning to the feeding port.

[0014] Optionally, the positive electrode sheet unit preparation conveying mechanism and the negative electrode sheet unit preparation conveying mechanism both include a first unit loading assembly, a first unit loading robot, a unit defect detection assembly, a unit positioning platform and a unit transfer robot; the first unit loading robot is located downstream of the first unit loading assembly and upstream of the unit defect detection assembly; the unit positioning platform is located downstream of the unit defect detection assembly and upstream of the unit transfer robot; the unit transfer robot is located upstream of the stacking table assembly; the first unit loading assembly is used to load unit sheets with different polarities; the first unit loading robot is used to grab unit sheets with different polarities to a preset workstation; the unit defect detection assembly is used to detect unit sheets with different polarities; the unit positioning platform is used to position unit sheets with different polarities after detection; the unit transfer robot is used to grab unit sheets with different polarities after positioning to the battery cell stacking table.

[0015] Optionally, the unit sheet includes a protective sheet; the protective sheet preparation and conveying structure includes a second unit loading assembly and a second unit loading robot, the second unit loading robot is located downstream of the second unit loading assembly and upstream of the stacking table assembly; the second unit loading assembly is used to load the protective sheet, and the second unit loading robot is used to transfer the protective sheet to the stacking table assembly.

[0016] In the second aspect, the present application also provides a method for manufacturing an all-solid-state battery cell, wherein the all-solid-state battery cell is prepared using all-solid-state battery cell manufacturing equipment, and the all-solid-state battery cell manufacturing equipment is the above-mentioned all-solid-state battery cell manufacturing equipment; the stacking table assembly stacks different unit sheets according to a preset order to form an initial battery cell; the initial battery cell is composited to form a composite battery cell using a hot pressing composite assembly; the periphery of the composite battery cell is sprayed with glue and positioned using a rotary spraying assembly to form an all-solid-state battery cell, or the periphery of the initial battery cell is sprayed with glue and positioned using a rotary spraying assembly; the initial battery cell after spraying and positioning is composited using a hot pressing composite assembly to form an all-solid-state battery cell.

[0017] In the third aspect, the present application also provides an all-solid-state battery cell, which is prepared by using the manufacturing equipment of the all-solid-state battery cell, and the manufacturing equipment of the all-solid-state battery cell is the manufacturing equipment of the above-mentioned all-solid-state battery cell; the all-solid-state battery cell includes a protective sheet, a negative electrode sheet unit and a positive electrode sheet unit, the protective sheet includes an upper protective sheet and a lower protective sheet, the negative electrode sheet unit includes a first negative electrode sheet unit and a second negative electrode sheet unit, wherein the positive electrode sheet unit is located between the first negative electrode sheet unit and the second negative electrode sheet unit, the lower protective sheet is located on the side of the first negative electrode sheet unit away from the positive electrode sheet unit, and the upper protective sheet is located on the side of the second negative electrode sheet unit away from the positive electrode sheet unit; along the direction from the first negative electrode sheet unit to the second negative electrode sheet unit, the first negative electrode sheet unit and the second negative electrode sheet unit both include negative electrode materials and a first solid electrolyte located on both sides of the negative electrode current collector; along the direction from the first negative electrode sheet unit to the second negative electrode sheet unit, the positive electrode sheet unit includes a positive electrode material and a second solid electrolyte located on both sides of the positive electrode current collector.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0019] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0021] Figure 1 It is a structural schematic diagram of a manufacturing device for an all-solid-state battery cell provided by the present invention;

[0022] Figure 2 It is a schematic structural diagram of a unit cell in one direction provided by the present invention;

[0023] Figure 3 It is a structural schematic diagram of a hot pressing composite component provided by the present invention;

[0024] Figure 4 It is a logic block diagram of a hot pressing composite assembly provided by the present invention;

[0025] Figure 5 It is a structural schematic diagram of a rotating mechanism, a glue spraying mechanism and a first visual detection mechanism in a rotary glue spraying assembly provided by the present invention;

[0026] Figure 6 It is a structural schematic diagram of a glue curing mechanism in a rotary glue spraying assembly provided by the present invention;

[0027] Figure 7 It is a logic block diagram of a rotary glue spraying assembly provided by the present invention;

[0028] Figure 8 It is a structural schematic diagram of a lamination table assembly provided by the present invention;

[0029] Fig. 9 It is a structural schematic diagram of a positive electrode unit feeding assembly provided by the present invention;

[0030] Fig.10 It is a structural schematic diagram of a surface suction cup structure provided by the present invention;

[0031] Fig.11 It is a structural schematic diagram of a positive electrode unit feeding robot provided by the present invention;

[0032] Fig.12 is a schematic structural diagram of a unit cell in another direction provided by the present invention;

[0033] Fig.13 It is a schematic diagram of the structure of a unit sheet in another direction provided by the present invention. DETAILED DESCRIPTION

[0034] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0035] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0036] Reference Figure 1-Figure 2 As shown, Figure 1 It is a structural schematic diagram of a manufacturing device for an all-solid-state battery cell provided by the present invention; Figure 2 It is a structural schematic diagram of a unit cell in one direction provided by the present invention; this embodiment provides a manufacturing device for an all-solid-state battery cell, including a stacking table assembly 1, a hot pressing composite assembly 2, a rotary glue spraying assembly 3 and a control device 4, wherein the stacking table assembly 1 is located upstream of the hot pressing composite assembly 2 and the rotary glue spraying assembly 3; the hot pressing composite assembly 2 is located upstream of the rotary glue spraying assembly 3, or the rotary glue spraying assembly 3 is located upstream of the hot pressing composite assembly 2; the stacking table assembly 1 is used to stack different unit cells 9 to form an initial battery cell, the hot pressing composite assembly 2 is used for hot pressing composite, and the rotary glue spraying assembly 3 is used for glue spraying positioning; the control device 4 is used to control the stacking table assembly 1, the hot pressing composite assembly 2 and the rotary glue spraying assembly 3.

[0037] The above-mentioned all-solid-state battery cell manufacturing equipment is an equipment for manufacturing all-solid-state battery cells, including a stacking table assembly 1, a hot pressing composite assembly 2 and a rotary spray glue assembly 3. The positional relationship between the above-mentioned stacking table assembly 1, the hot pressing composite assembly 2 and the rotary spray glue assembly 3 is: stacking table assembly 1-hot pressing composite assembly 2-rotary spray glue assembly 3, or, stacking table assembly 1-rotary spray glue assembly 3-hot pressing composite assembly 2.

[0038] Different unit sheets 9 are stacked by using a stacking table assembly 1 to form an initial battery cell. The above-mentioned different unit sheets 9 may include a positive electrode sheet unit 93, a negative electrode sheet unit 92 and a protective sheet 91, wherein the number of negative electrode sheet units 92 may be greater than the number of positive electrode sheet units 93. Of course, according to actual conditions, the number of positive electrode sheet units 93 may be greater than the number of negative electrode sheet units 92. This embodiment only takes the example that the number of negative electrode sheet units 92 may be greater than the number of positive electrode sheet units 93, such as two protective sheets 91, two negative electrode sheet units 92 and one positive electrode sheet unit 93, the positive electrode sheet unit 93 is located between the two negative electrode sheet units 92, and the two negative electrode sheet units 92 are respectively provided with protective sheets 91 on the side away from the positive electrode sheet unit 93, and the negative electrode sheet units 92 on the upper and lower surfaces of the battery cell without a diaphragm are protected by the protective sheets 91.

[0039] Combination Figure 1 and Figure 2 As shown, when the hot pressing composite assembly 2 is located upstream of the rotary spray assembly 3, the hot pressing composite assembly 2 includes a first working position. At the first working position, the initial battery cell is pressurized and heated so that the adhesive materials on different unit sheets 9 (such as two protective sheets 91, two negative electrode sheet units 92 and one positive electrode sheet unit 93) in the initial battery cell and the adjacent unit sheets 9 are bonded and composited together to form a composite battery cell.

[0040] The rotating glue spraying assembly 3 sprays glue around the sides of the qualified composite battery cell to form an insulating glue layer 35 (such as Figure 5 As shown), the unit sheets 9 of different polarities in the composite battery cell are insulated from each other, and the thickness of the insulating glue layer 35 can range from 0.01 to 5 mm.

[0041] When the hot pressing composite component 2 is located upstream of the rotary spraying component 3, it can not only enhance the contact between different unit sheets 9, but also make the two tightly combined by applying temperature and pressure, reduce the interface gap, thereby improving the ion transmission efficiency, and ensure that the solid electrolyte is evenly distributed on the electrode surface to form a uniform and tight interface layer, which helps to further optimize the contact between the electrolyte and the electrode, improve the overall performance of the battery, and ensure the safety and stability of the battery.

[0042] When the rotary glue spraying assembly 3 is located upstream of the hot pressing composite assembly 2, the rotary glue spraying assembly 3 is used to spray glue on the periphery of the initial battery cell to form a layer of insulating glue layer 35, so that the unit sheets 9 of different polarities in the initial battery cell after the glue spraying positioning are insulated from each other. The thickness range of the above-mentioned insulating glue layer 35 can also be 0.01-5mm.

[0043] The hot pressing composite assembly 2 includes a first working position. At the first working position, the initial battery cell after spraying and positioning is pressurized and heated so that the adhesive materials on different unit sheets 9 (such as two protective sheets 91, two negative electrode sheet units 92 and one positive electrode sheet unit 93) in the initial battery cell and the adjacent unit sheets 9 are bonded and composited together to form an all-solid-state battery cell.

[0044] When the rotary spray glue assembly 3 is located upstream of the hot pressing composite assembly 2, it can not only achieve an insulating effect, but also enhance the contact between different unit sheets 9, thereby improving the stability of the interface, helping to improve the performance and life of the battery, while ensuring the stability and safety of the battery structure.

[0045] The control device 4 precisely controls the lamination table assembly 1, the hot pressing compound assembly 2 and the rotary glue spraying assembly 3. The control device 4 ensures the cooperation between the lamination table assembly 1, the hot pressing compound assembly 2 and the rotary glue spraying assembly 3 by sending instructions and receiving feedback, so as to realize an efficient and precise automated production process. Figure 4 and Figure 7 It should be noted that the control device 4 may be a controller, and the model of the controller may be a YH-610 industrial computer.

[0046] Compared with the prior art, the manufacturing equipment for the all-solid-state battery cell provided in this embodiment achieves at least the following beneficial effects: the manufacturing equipment for the all-solid-state battery cell provided in this embodiment comprises a stacking table assembly 1, a hot pressing composite assembly 2, a rotary glue spraying assembly 3 and a control device 4, wherein the stacking table assembly 1 is located upstream of the hot pressing composite assembly 2 and the rotary glue spraying assembly 3; the hot pressing composite assembly 2 is located upstream of the rotary glue spraying assembly 3, or the rotary glue spraying assembly 3 is located upstream of the hot pressing composite assembly 2; the stacking table assembly 1 is used to stack different unit sheets 9 to form an initial battery cell; the hot pressing composite assembly 2 is used for hot pressing and compounding, and the rotary glue spraying assembly 3 is used for glue spraying positioning; the control device 4 is used to control the stacking table assembly 1, the hot pressing and compounding assembly 2 and the rotary glue spraying assembly 3; adopting the above scheme, through the mutual cooperation among the stacking table assembly 1, the hot pressing and compounding assembly 2 and the rotary glue spraying assembly 3, not only can different unit sheets 9 be stacked together, but also different unit sheets 9 can be firmly bonded into a whole, and at the same time, the insulation between different unit sheets 9 in the composite battery cell or the initial battery cell can be improved, short circuit and leakage can be prevented, and the overall production efficiency and production accuracy of the all-solid-state battery can be improved.

[0047] In an alternative embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, Figure 3 It is a structural schematic diagram of a hot pressing composite component provided by the present invention; Figure 4 It is a logic block diagram of a hot-pressed composite component provided by the present invention; the hot-pressed composite component 2 includes a hydraulic system 21 and a pressure piece 22; the pressure piece 22 includes an upper pressure plate 221 and a lower pressure plate 222 that are arranged opposite to each other, and the upper pressure plate 221 is connected to the hydraulic system 21 on the side away from the lower pressure plate 222; the upper pressure plate 221 and the lower pressure plate 222 are respectively provided with a heating core 2210, and the heating core 2210 is used to generate heat; the upper pressure plate 221 and the lower pressure plate 222 are evenly provided with temperature sensors 2211, and the temperature sensors 2211 are used to detect the temperature at different positions of the upper pressure plate 221 and the lower pressure plate 222 in real time; the hydraulic system 21, the heating core 2210 and the temperature sensor 2211 are respectively connected to the control device 4.

[0048] Specifically, combined Figure 3 and Figure 4As shown, in the first working position, the hot-pressed composite assembly 2 includes a hydraulic system 21 and a pressure member 22. The upper pressure plate 221 and the lower pressure plate 222 are arranged relative to each other and parallel to each other. The initial battery cell is located on the lower pressure plate 222. The hydraulic system 21 provides power to the upper pressure plate 221, so that the upper pressure plate 221 can apply pressure to the lower pressure plate 222, so that the initial battery cell is placed between the upper pressure plate 221 and the lower pressure plate 222 for pressurization. For example, the hydraulic system 21 can provide a pressure of 0T-80T (tons). The pressure of the hydraulic system 21 can be adjusted to meet different process requirements.

[0049] The upper pressure plate 221 and the lower pressure plate 222 are provided with a heating core 2210 and a temperature sensor 2211 inside. The heating core 2210 and the temperature sensor 2211 are electrically connected. The heating core 2210 is evenly distributed in the upper pressure plate 221 and the lower pressure plate 222. The heating core 2210 in the upper pressure plate 221 and the heating core 2210 in the lower pressure plate 222 can be controlled separately. The temperature sensor 2211 is arranged at multiple positions on the upper pressure plate 221 and the lower pressure plate 222, such as the temperature sensor 2211 is arranged inside the upper pressure plate 221 and the lower pressure plate 222, or the temperature sensor 2211 is arranged on the side of the upper pressure plate 221 close to the lower pressure plate 222 and on the side of the lower pressure plate 222 close to the upper pressure plate 221.

[0050] The temperature sensor 2211 in the upper pressure plate 221 and the temperature sensor 2211 in the lower pressure plate 222 detect the temperature at various locations in the upper pressure plate 221 and the lower pressure plate 222 in real time, and feed back to the control device 4. The control device 4 can dynamically adjust the heating value of the heating core 2210 in the upper pressure plate 221 and the heating core 2210 in the lower pressure plate 222 to form a closed-loop control to ensure the uniformity of the temperature at various locations in the upper pressure plate 221 and the lower pressure plate 222. The heating temperature range of the heating core 2210 is room temperature-200°C, and the temperature control accuracy is ±1°C. The room temperature is a variable.

[0051] The above-mentioned control device 4 controls the hydraulic system 21 to provide power, driving the upper pressure plate 221 to apply pressure to the lower pressure plate 222, placing the initial battery cell between the upper pressure plate 221 and the lower pressure plate 222, and utilizing the heating core 2210 in the upper pressure plate 221 and the heating core 2210 in the lower pressure plate 222 to heat the upper pressure plate 221 and the lower pressure plate 222, so that the initial battery cell is hot pressed. During the hot pressing process, the temperature sensor 2211 in the upper pressure plate 221 and the temperature sensor 2211 in the lower pressure plate 222 detect the temperature of the upper pressure plate 221 and the lower pressure plate 222 in real time to ensure accurate temperature control during the hot pressing process. The control device 4 coordinates the hydraulic system 21, the heating core 2210 and the temperature sensor 2211 to ensure the smooth progress of the hot pressing process. With the above-mentioned scheme, efficient and high-quality hot pressing of the initial battery cell is achieved through precise temperature control and pressure application, thereby improving the production efficiency of the battery cell. In an optional embodiment, see Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, Figure 5 It is a structural schematic diagram of a rotating mechanism, a glue spraying mechanism and a first visual detection mechanism in a rotary glue spraying assembly provided by the present invention; Figure 6 It is a structural schematic diagram of a glue curing mechanism in a rotary glue spraying assembly provided by the present invention; Figure 7 It is a logic block diagram of a rotary glue spraying assembly provided by the present invention; in this embodiment, the rotary glue spraying assembly 3 includes a rotating mechanism 31, a glue spraying mechanism 32, a first visual inspection mechanism 33 and a glue curing mechanism 34, the rotating mechanism 31 is located below the glue spraying mechanism 32 and the glue curing mechanism 34, and the first visual inspection mechanism 33 is located above the glue spraying mechanism 32 and the glue curing mechanism 34; the first visual inspection mechanism 33 is used to take real-time photos of the initial battery cell, the rotating mechanism 31 is used to rotate the initial battery cell, and the glue spraying mechanism 32 is used to spray glue on the rotated initial battery cell; the glue curing mechanism 34 is used to position the initial battery cell after glue spraying; the rotating mechanism 31, the glue spraying mechanism 32, the first visual inspection mechanism 33 and the glue curing mechanism 34 are respectively connected to the control device 4.

[0052] Specifically, the control device 4 is configured to perform the following steps: rotate the initial battery cell using the rotating mechanism 31; receive the glue spraying information of the initial battery cell fed back by the first visual inspection mechanism 33; spray glue on the initial battery cell using the glue spraying mechanism 32 according to the glue spraying information of the initial battery cell; and solidify the initial battery cell after glue spraying using the glue curing mechanism 34 to form a fully solid-state battery cell.

[0053] The rotating mechanism 31 can be a rectangular structure, which matches the initial battery cell. The rotating mechanism 31 can rotate the initial battery cell to ensure that the four sides of the initial battery cell are sprayed with insulating glue, or to ensure that the four sides of the initial battery cell after spraying are sprayed with insulating glue. The first visual inspection mechanism 33 can not only take real-time photos of the initial battery cell, but also detect the size of the spraying position required for each side of the initial battery cell, which can be the width and length, and feed back the real-time photography information and the size of the spraying position to the control device 4. The control device 4 controls the spraying position and amount of the spraying mechanism 32 to ensure the accuracy of the spraying; the above-mentioned first visual inspection mechanism 33 can also detect the insulating glue coating status of the four sides of the initial battery cell to prevent abnormal conditions such as missing coating, insufficient coating, excessive glue overflow, etc., mark unqualified products, and move them to the waste area for subsequent processing (such as discharging waste at the battery cell pull strap 0). According to the glue spraying information of the initial battery cell fed back by the first visual inspection mechanism 33, the control device 4 controls the glue spraying structure, dynamically adjusts the glue spraying trajectory and spraying volume in real time, and forms a high-precision closed-loop control to ensure the position accuracy and thickness consistency of the insulating glue layer 35 on the four sides of the initial battery cell.

[0054] The control device 4 controls the glue curing mechanism 34 to cure the glue-sprayed battery cell to form a fully solid-state battery cell. The glue can be UV curing glue, hot melt glue or resin glue, etc. Different curing methods can be used according to the different types and characteristics of the glue. In this embodiment, UV curing glue or hot melt glue can be used to cure the initial battery cell after spraying. When UV curing glue is used, an ultraviolet lamp is used to photo-cure the initial battery cell after spraying; when hot melt glue is used, cold air is used to accelerate the curing of the glue-sprayed battery cell.

[0055] In an alternative embodiment, continue to refer to Figure 5 As shown, the glue spraying mechanism 32 includes a glue cylinder 321 and a glue spraying nozzle 322, and a valve group 323 is connected between the glue cylinder 321 and the glue spraying nozzle 322. The glue spraying nozzle 322 is located on the side of the valve group 323 away from the glue cylinder 321, and the glue spraying nozzle 322 is used to spray glue on the composite battery cell or the initial battery cell after glue spraying. The glue cylinder 321 is used to store insulating glue, and the glue spraying nozzle 322 is used to spray the insulating glue to achieve the insulation of the unit sheets 9 of different polarities in the composite battery cell or the initial battery cell after glue spraying; the valve group 323 can play a key control role in the glue spraying process, and can adjust the flow, pressure and injection speed of the insulating glue. The valve group 323 can be a piezoelectric valve or a screw valve. The piezoelectric valve uses the piezoelectric effect to control the injection of the insulating glue, and has the purpose of high precision and fast response. The screw valve pushes the glue by rotating the screw, which is suitable for occasions requiring large thrust and flow. The above-mentioned valve group 323 can be connected to the control device 4 to achieve precise glue spraying control. By adopting the above solution, precise spraying of the insulating glue is achieved through the cooperation between the glue cylinder 321, the valve group 323 and the glue spraying nozzle 322.

[0056] In an alternative embodiment, referring to Figure 1 and Figure 8 As shown, Figure 8 1 is a structural schematic diagram of a stacking table assembly provided by the present invention; the stacking table assembly 1 comprises a second visual inspection mechanism 11, a battery cell stacking table 12 and a battery cell pressing structure 13, the battery cell pressing structure 13 is located above the battery cell stacking table 12, and the second visual inspection mechanism 11 is located on the side of the battery cell pressing structure 13 away from the battery cell stacking table 12;

[0057] The second visual inspection mechanism 11 is used to take real-time photos of the positions of different unit sheets 9, and the battery cell stacking platform 12 is used to drive the battery cell pressing structure 13 to move to the positions of different unit sheets 9 along the first direction (not shown in the figure), the second direction (not shown in the figure) and the rotation direction (not shown in the figure), wherein the first direction intersects with the second direction, and the rotation direction is to rotate the battery cell stacking platform 12 clockwise or counterclockwise, and the battery cell pressing structure 13 is used to stack different unit sheets 9 and press the stacked different unit sheets 9; the second visual inspection mechanism 11, the battery cell stacking platform 12 and the battery cell pressing structure 13 are respectively The control device 4 is connected, and the control device 4 is configured to perform the following steps: receiving the position information of different unit cells 9 fed back by the second visual detection mechanism 11; according to the position information of different unit cells 9, using the battery cell stacking table 12 to drive the battery cell clamping structure 13 to move to the positions of different unit cells 9 along the first direction, the second direction and the rotation direction, such as using the battery cell stacking table 12 to drive the battery cell clamping structure 13 to move to the positions of different unit cells 9 along the XYR direction; controlling the opening and closing of the battery cell clamping structure 13 according to the positions of different unit cells 9, and compressing the stacked unit cells 9 until the stack forms an initial battery cell.

[0058] The cell stacking platform 12 can be an XYR three-axis displacement stacking platform, which can adopt the three-axis platform LS125-LM of Zhongbang Precision. The equipment has high precision and stability and can meet the demand for precise position control during the cell stacking process. The cell clamping structure 13 is located above the cell stacking platform 12, and the second visual inspection mechanism 11 is used to take real-time photos of different unit cell 9 positions.

[0059] Combination Figure 1 and Figure 2As shown, the unit sheet 9 includes a positive electrode unit 93, a negative electrode unit 92 and a protective sheet 91, and the protective sheet 91 includes an upper protective sheet 910 and a lower protective sheet 911. The positive electrode unit 93 is located between the two negative electrode units 92, and the protective sheets 91 are laid on the side of the negative electrode unit 92 away from the positive electrode unit 93, that is, there are two protective sheets 91, and the two protective sheets 91 are respectively the lower protective sheet 911 of the bottom layer and the upper protective sheet 910 of the top layer. When the manufacturing equipment of the all-solid-state battery cell also includes a second unit loading robot 72, a negative electrode unit transfer robot 552 and a positive electrode unit transfer robot 551, the second unit loading robot 72 is used to place the protective sheet 91 in the stacking position, the negative electrode unit transfer robot 552 is used to place the negative electrode unit 92 in the stacking position, and the positive electrode unit transfer robot 551 is used to place the positive electrode unit 93 in the stacking position.

[0060] The battery cell stacking platform 12 first moves to the stacking position of the protective sheet 91, the battery cell clamping structure 13 is opened, the second unit loading robot 72 places the lower protective sheet 911 of the lowest layer on the bottom layer of the battery cell stacking platform 12, the battery cell clamping structure 13 is closed, the battery cell stacking platform 12 moves to the stacking position of the negative electrode sheet unit 92, the battery cell clamping structure 13 is opened, the negative electrode sheet unit transfer robot 552 places the negative electrode sheet unit 92 on the lower protective sheet 911, the battery cell clamping structure 13 is closed, the negative electrode sheet unit 92 and the lower protective sheet 911 are compressed, the battery cell stacking platform 12 moves to the stacking position of the positive electrode sheet unit 93, the second visual inspection mechanism 11 takes a photo to detect the position of the negative electrode sheet unit 92, the battery cell stacking platform 12 fine-tunes the position of the negative electrode sheet unit 92, and the battery cell clamping structure 13 is opened. The positive electrode unit transfer robot 551 places the positive electrode unit 93 on the negative electrode unit 92, the battery cell clamping structure 13 is closed, and the positive electrode unit 93, the negative electrode unit 92 and the lower protective sheet 911 are compressed, and the battery cell stacking table 12 returns to the stacking position of the negative electrode unit 9, and the second visual inspection mechanism 11 takes a photo to detect the position of the negative electrode unit 92, and the battery cell stacking table 12 fine-tunes the position between the positive electrode unit 93, the negative electrode unit 92 and the lower protective sheet 911, and then the battery cell clamping structure 13 is opened to stack the negative electrode... The positive electrode unit 93 and the negative electrode unit 91 are stacked cyclically to the number required for the initial battery cell, and then moved to the protective sheet 91 stacking position, stacked the top protective sheet 910, and finally the battery cell stacking table 12 moves to the battery cell unloading position with the initial battery cell.

[0061] The second visual inspection mechanism 11, the battery cell stacking platform 12 and the battery cell clamping structure 13 cooperate with each other to ensure that the lower protective sheet 911, several positive electrode sheet units 93, several negative electrode sheet units 92 and the upper protective sheet 910 of the top layer are completely symmetrical or overlapped in the vertical direction.

[0062] In an alternative embodiment, continue to refer to Figure 1As shown, the manufacturing equipment of the all-solid-state battery cell in this embodiment also includes: a positive electrode unit preparation conveying mechanism 5, a negative electrode unit preparation conveying mechanism 6, a protective sheet preparation conveying structure 7, a battery cell lower stacking stage manipulator a, a battery cell upper buffer manipulator b and a buffer assembly 8, wherein,

[0063] The positive electrode unit preparation conveying mechanism 5, the negative electrode unit preparation conveying mechanism 6 and the protective sheet preparation conveying structure 7 are arranged in parallel; the lower stacking stage robot a of the battery cell is located downstream of the stacking stage assembly 1 and upstream of the upper cache robot b of the battery cell;

[0064] The cache component 8 is located downstream of the cache manipulator b on the battery cell and upstream of the hot pressing composite component 2, or the cache component 8 is located downstream of the cache manipulator b on the battery cell and upstream of the rotary glue spraying component 3;

[0065] The positive electrode unit preparation conveying mechanism 5, the negative electrode unit preparation conveying mechanism 6 and the protection sheet preparation conveying structure 7 are respectively used to convey different unit sheets 9 to the stacking table assembly 1; the lower cell stacking table robot a is used to grab the initial cell; the upper cell cache robot b is used to transfer the initial cell grabbed by the lower cell stacking table robot to the cache assembly 8.

[0066] Specifically, this embodiment also takes the example that the unit sheet 9 includes a positive electrode sheet unit 93, a negative electrode sheet unit 92 and a protective sheet 91. The positive electrode sheet unit preparation conveying mechanism 5 conveys the positive electrode sheet unit 93 to the stacking table assembly 1, the negative electrode sheet unit preparation conveying mechanism 6 conveys the negative electrode sheet unit 92 to the stacking table assembly 1, and the protective sheet preparation conveying structure 7 conveys the protective sheet 91 to the stacking table assembly 1.

[0067] It should be noted that the positive electrode sheet unit preparation and conveying mechanism 5, the negative electrode sheet unit preparation and conveying mechanism 6 and the protective sheet preparation and conveying mechanism 7 are placed according to the initial battery cell stacking order, wherein the negative electrode sheet units 92 and the positive electrode sheet units 93 are placed alternately, and the upper protective sheet 910 and the lower protective sheet 911 are respectively placed on the top and bottom layers of the initial battery cell.

[0068] During the initial battery cell preparation process, the positive electrode unit preparation conveying mechanism 5, the negative electrode unit preparation conveying mechanism 6 and the protective sheet preparation conveying structure 7 need to be arranged according to the stacking order of the initial battery cell. Specifically, the positive electrode unit preparation conveying mechanism 5, the negative electrode unit preparation conveying mechanism 6 and the protective sheet preparation conveying structure 7 should be arranged according to the actual stacking order of the initial battery cell, that is, first use the protective sheet preparation conveying structure 7 to convey the lower protective sheet 911, then use the negative electrode unit preparation conveying mechanism 6 to convey the negative electrode unit 92, then the positive electrode unit preparation conveying mechanism 5 to convey the positive electrode unit 93, then use the negative electrode unit preparation conveying mechanism 6 to convey the negative electrode unit 92, and finally, use the protective sheet preparation conveying structure 7 to convey the upper protective sheet 910 to avoid damage to the negative electrode unit 92. The above conveying order ensures that each unit in the initial battery cell can be accurately assembled in a predetermined order and position, thereby ensuring the quality and performance of the battery cell. Of course, the conveying sequence of the positive electrode unit preparation conveying mechanism 5 and the negative electrode unit preparation conveying mechanism 6 can also be adjusted according to actual conditions, and this embodiment does not make any specific limitation.

[0069] The cell stacking robot a is used to drive the initial cell to the cell unloading position, such as taking out the stacked initial cell. The part of the cell stacking robot a that contacts the initial cell is made of polyurethane material or encapsulated to prevent damage to the surfaces of different unit sheets 9 in the initial cell.

[0070] The initial battery cell is grabbed from the stacking robot a under the battery cell by using the cache robot b on the battery cell and placed in the cache assembly 8. The part of the cache robot b on the battery cell that contacts the initial battery cell is made of polyurethane material or is coated with glue to prevent damage to the outer surfaces of different unit sheets 9 in the initial battery cell. The cache assembly 8 is used to cache the initial battery cell. In order to avoid the numerous and time-consuming processes of the hot pressing composite assembly 2 and the rotary spraying assembly 3, the initial battery cell is temporarily stored by adding a cache assembly 8.

[0071] By adopting the above scheme, the positive electrode unit preparation and conveying mechanism 5, the negative electrode unit preparation and conveying mechanism 6, the protective sheet preparation and conveying structure 7, the lower cell stacking robot a, the upper cell cache robot b and the cache component 8 cooperate with each other, which can improve the production efficiency of the initial battery cells, thereby improving the production efficiency, production accuracy and product consistency of the all-solid-state battery cells, and is suitable for mass production of initial battery cells.

[0072] In an alternative embodiment, continue to refer to Figure 1 As shown, the manufacturing equipment of the all-solid-state battery cell in this embodiment further includes: a battery cell circulation robot c, a battery cell unloading robot d, a battery cell pull belt 0 and a battery cell unloading assembly e;

[0073] The cell circulation robot c is located downstream of the cache component 8 and upstream of the hot pressing composite component 2; or, the cell circulation robot c is located downstream of the cache component 8 and upstream of the rotary glue spraying component 3;

[0074] The battery cell unloading robot d is located downstream of the hot pressing composite component 2, and upstream of the battery cell pull belt 0 and the battery cell unloading component e; or, the battery cell unloading robot d is located downstream of the rotary glue spraying component 3, and upstream of the battery cell pull belt 0 and the battery cell unloading component e;

[0075] The battery cell pull belt 0 and the battery cell blanking component e are arranged to intersect each other;

[0076] When the cache component 8 is located upstream of the hot-pressing composite component 2, the battery cell transfer robot c is used to transfer the initial battery cell placed in the cache component 8 to the hot-pressing composite station corresponding to the hot-pressing composite component 2; the battery cell unloading robot d is used to transfer the initial battery cell after hot-pressing composite to the rotary glue spraying station corresponding to the rotary glue spraying component 3;

[0077] When the cache component 8 is located upstream of the rotary glue spraying component 3, the battery cell transfer robot c is used to transfer the initial battery cell placed in the cache component 8 to the rotary glue spraying station corresponding to the rotary glue spraying component 3; the battery cell unloading robot d is used to transfer the initial battery cell after hot pressing and compounding to the hot pressing and compounding station corresponding to the hot pressing and compounding component 2;

[0078] When the battery cell unloading robot d is located downstream of the hot pressing composite component 2 and upstream of the battery cell pull belt 0 and the battery cell unloading component e, the battery cell pull belt 0 is used to transfer the unqualified initial battery cells after hot pressing composite to the waste outlet; the battery cell unloading component e is used to transfer the qualified initial battery cells after hot pressing composite to the material taking outlet;

[0079] When the battery cell unloading robot d is located downstream of the rotating glue spraying assembly 3 and upstream of the battery cell pull belt 0 and the battery cell unloading assembly e, the battery cell pull belt 0 is used to transfer the unqualified initial battery cells after glue spraying positioning to the waste port; the battery cell unloading assembly e is used to transfer the qualified initial battery cells after glue spraying positioning to the material taking port.

[0080] Specifically, when the cache component 8 is located upstream of the hot pressing composite component 2, the battery cell transfer robot c is used to grab the initial battery cell from the cache component 8 and place it in the hot pressing composite station corresponding to the hot pressing composite component. The hot pressing composite component is used to perform hot pressing composite on the initial battery cell. The battery cell transfer robot c is then used to grab the hot pressing composite initial battery cell to the rotary spraying station corresponding to the rotary spraying component 3 to form a fully solid battery cell. The battery cell unloading robot d is used to move the qualified fully solid battery cell after rotary spraying. They are transported to the pallet of the battery cell unloading assembly e (a container or platform for storing and transporting qualified all-solid-state battery cells), and subsequently transferred to the material taking port, and the unqualified all-solid-state battery cells are transported to the battery cell pulling belt 0; the battery cell pulling belt 0 can be a battery cell NG pulling belt, which can be divided into two side-by-side structures or an upper and lower layer structure, such as one battery cell NG pulling belt for placing composite battery cells that fail hot pressing composite, and the other battery cell NG pulling belt for placing all-solid-state battery cells that fail rotary spraying, and then transferred to the waste material port, and the waste battery cells are taken out manually on a regular basis.

[0081] When the rotary glue spraying component 3 is located upstream of the hot pressing composite component 2, the initial battery cell is grabbed from the cache component 8 by the battery cell circulation robot c and placed in the rotary glue spraying station corresponding to the rotary glue spraying component 3, and the initial battery cell is positioned by the rotary glue spraying component 3, and the battery cell circulation robot c is used to grab the initial battery cell after the glue spraying is positioned to the hot pressing composite station corresponding to the hot pressing composite component, and the hot pressing composite component is used to form a full-solid-state battery cell after the hot pressing composite of the initial battery cell after the glue spraying is positioned. The full-solid-state battery cell is short-circuited After the inspection and thickness inspection, the qualified all-solid-state battery cells are moved to the tray of the battery cell unloading component e (a container or platform for storing and transporting qualified all-solid-state battery cells) by the battery cell unloading robot d, and the unqualified all-solid-state battery cells are moved to the battery cell pulling belt 0; the battery cell pulling belt 0 can be a battery cell NG pulling belt, which can be divided into two side-by-side structures or an upper and lower layer structure, such as a battery cell NG pulling belt for placing unqualified rotary sprayed battery cells, and a battery cell NG pulling belt for placing hot pressed composite unqualified battery cells, which are transferred to the waste material port, and the waste battery cells are removed manually at a regular interval.

[0082] It should be noted that the part where the cell transfer robot c contacts the initial cell and the part where the cell transfer robot c contacts the composite cell are both made of polyurethane material or encapsulated to prevent damage to the surfaces of different unit cells 9 in the initial cell and the composite cell.

[0083] By adopting the above scheme, through the coordination among the cache component 8, the hot pressing composite component 2, the rotary spraying component 3, the battery cell flow robot c, the battery cell unloading robot d, the battery cell pull belt 0 and the battery cell unloading component e, qualified all-solid-state battery cells can be transported to the tray of the battery cell unloading component e in a timely manner, and unqualified all-solid-state battery cells can be transported to the battery cell pull belt 0, thereby improving the production efficiency, production accuracy and product consistency of the all-solid-state battery cells, so as to be suitable for mass production of initial battery cells.

[0084] It should be noted that: continue to refer to Figure 1 As shown, the positive electrode unit preparation conveying mechanism 5, the negative electrode unit preparation conveying mechanism 6, the protective sheet preparation conveying structure 7, the lower cell stacking platform robot a, the upper cell cache robot b, the cache assembly 8, the cell circulation robot c, the cell unloading robot d and the cell pull belt 0 are respectively installed on the frame f. In order to facilitate the subsequent maintenance of the above-mentioned parts, a maintenance channel h can be opened on the frame f. When the hot pressing composite component 2 is located upstream of the rotary glue spraying component 3, the maintenance channel h can be opened between the hot pressing composite component 2 and the upper cell cache robot b; when the rotary glue spraying component 3 is located upstream of the hot pressing composite component 2, the maintenance channel h can be opened between the rotary glue spraying component 3 and the upper cell cache robot b. The maintenance channel h is conducive to the repair and maintenance of the positive electrode unit preparation conveying mechanism 5, the negative electrode unit preparation conveying mechanism 6, the protective sheet preparation conveying structure 7, the lower cell stacking platform robot a, the cell circulation robot c, the cell unloading robot d, the cell pull belt 0 and the cell unloading assembly e.

[0085] In an alternative embodiment, in combination Figure 1 , Figure 2 , Figure 9-11 As shown, Fig. 9 It is a structural schematic diagram of a positive electrode unit feeding assembly provided by the present invention; Fig.10 It is a structural schematic diagram of a surface suction cup structure provided by the present invention; Fig.11 Schematic diagram of the structure of a positive electrode unit feeding manipulator provided by the present invention; in this embodiment, the positive electrode unit preparation conveying mechanism 5 and the negative electrode unit preparation conveying mechanism 6 both include a first unit feeding component 51, a first unit feeding manipulator 52, a unit defect detection component 53, a unit positioning platform 54 and a unit transfer manipulator 55;

[0086] The first unit loading robot 52 is located downstream of the first unit loading assembly 51 and upstream of the unit defect detection assembly 53; the unit positioning platform 54 is located downstream of the unit defect detection assembly 53 and upstream of the unit transfer robot 55; the unit transfer robot 55 is located upstream of the stacking table assembly 1;

[0087] The first unit loading assembly 51 is used to load unit chips 9 with different polarities; the first unit loading robot 52 is used to grab unit chips 9 with different polarities to the preset workstation; the unit defect detection assembly 53 is used to detect unit chips 9 with different polarities; the unit positioning platform 54 is used to position the unit chips 9 with different polarities after detection; the unit transfer robot 55 is used to grab the positioned unit chips 9 with different polarities to the battery cell stacking table 12.

[0088] Specifically, continue to refer to Figure 1 As shown, the first unit loading assembly 51 includes a positive electrode unit loading assembly 510 and a negative electrode unit loading assembly 511. The positive electrode unit loading assembly 510 is used to load the positive electrode unit 93, and the negative electrode unit loading assembly 511 is used to load the negative electrode unit 92, in preparation for stacking into initial battery cells.

[0089] Continue to refer to Fig. 9 As shown, the above-mentioned positive electrode unit loading assembly 510 and negative electrode unit loading assembly 511 both include a first upper tray position 5101, a conveying track 5102 and a first lower tray position 5103. The first upper tray position 5101 is the docking position between the manufacturing equipment and the external loading and unloading, and the first lower tray position 5103 is the loading and unloading position inside the manufacturing equipment.

[0090] The above-mentioned preset workstations include a defect detection workstation and a positioning platform workstation.

[0091] The above-mentioned first unit loading robot 52 includes a positive electrode sheet unit loading robot 521 and a negative electrode sheet unit loading robot 522. The positive electrode sheet unit loading robot 521 can not only grab the positive electrode sheet unit 93 from the first lower tray position 5103 to the positive electrode sheet unit 93 defect detection station, but also grab the positive electrode sheet unit 93 from the positive electrode sheet unit 93 defect detection station to the positioning platform station; the negative electrode sheet unit loading robot 522 can not only grab the negative electrode sheet unit 92 from the first lower tray position 5103 to the negative electrode sheet unit 92 defect detection station, but also grab the negative electrode sheet unit 92 from the negative electrode sheet unit 92 defect detection station to the positioning platform station.

[0092] The positive electrode unit loading assembly 510 and the negative electrode unit loading assembly 511 have the same structure, and the positive electrode unit loading robot 521 and the negative electrode unit loading robot 522 have the same structure. The positive electrode unit loading assembly 510 and the positive electrode unit loading robot 521 are used as examples:

[0093] Continue to refer to Fig. 9 As shown, the pallet with the positive electrode unit 93 is moved manually or mechanically to the first upper pallet position 5101, and the pallet of the positive electrode unit 93 is transported to the first lower pallet position 5103 by means of the conveying track 5102. The pallet of the positive electrode unit 93 is transported to the first lower pallet position 5103, and then the positive electrode unit loading robot 521 takes the positive electrode unit 93 from the pallet of the positive electrode unit 93. After the positive electrode unit 93 is used up, the pallet of the positive electrode unit 93 returns from the first lower pallet position 5103 along the conveying track 5102 to the first upper pallet position 5101, the empty pallet leaves the preparation equipment, and a new pallet loaded with materials (such as positive electrode units 93) is placed in the first upper pallet position 5101, and the action is repeated.

[0094] The above-mentioned conveying track 5102 can adopt a linear guide, an electric cylinder or an air cylinder, wherein the linear guide is used to provide linear motion to accurately control the position and motion trajectory of the tray of the positive electrode unit 93; the electric cylinder is a linear actuator driven by a motor to accurately control the stroke and speed; the air cylinder generates linear motion through air pressure drive to push the object to move linearly.

[0095] Each part of the first upper tray position 5101, the conveying track 5102 and the first lower tray position 5103 also includes a detection structure (not shown in the figure), such as a position detection sensor. The model of the position detection sensor can be a PM-T65 series photoelectric sensor. For example, the first upper tray position 5101 needs to detect whether there is a positive electrode unit 93 in the tray of the positive electrode unit 93, the conveying track 5102 needs to detect whether there is a tray of the positive electrode unit 93, detect whether the tray of the positive electrode unit 93 is in place, and the first lower tray position 5103 needs to detect whether the positive electrode unit 93 is in place in the tray.

[0096] To detect whether there is a positive electrode unit 93 in the tray of the positive electrode unit 93, a color sensor can also be used. For example, a color sensor can be used to detect the copper and aluminum tabs in the positive electrode unit 93. Copper is yellow and aluminum is white. The color sensor can be a Keyence RGB digital fiber optic sensor, model CZ-V20 series. The Keyence RGB digital fiber optic sensor has high-precision color recognition and multi-color discrimination.

[0097] It should be noted that a cell unloading assembly e is also installed downstream of the cell unloading robot d. The cell unloading assembly e has the same structure as the positive electrode unit loading assembly 510. The cell unloading robot d will place qualified cells on the tray at the second upper tray position (not marked in the figure), and move it to the second lower tray position after it is full. The full tray will be taken away manually or mechanically, and an empty tray will be placed on top.

[0098] Continue to refer to Fig.11 As shown, the positive electrode unit feeding robot 521 and the negative electrode unit feeding robot 522 both include a square frame 5210, a servo electric cylinder 5211 and a sub-feeding robot 5212. The square frame 5210 is equipped with a servo electric cylinder 5211 in the horizontal direction and the vertical direction. The sub-feeding robot 5212 is installed on the servo electric cylinder 5211. The servo electric cylinder 5211 drives the first robot to move left and right and up and down. The sub-feeding robot 5212 mainly includes a surface suction cup structure 52120 and a vacuum generator, wherein,

[0099] The model of the vacuum generator may be FESTO's OVEM-10-HB-QO-CE-N-2P.

[0100] Continue to refer to Fig.10 As shown, the surface suction cup structure 52120 is used to grasp and place the positive electrode unit 93, including an air interface 52120a, a suction cup bottom plate 52120b and a suction cup flexible layer 52120c, wherein the suction cup bottom plate 52120b and the suction cup flexible layer 52120c are parallel to each other, the suction cup bottom plate 52120b is a hollow rectangular parallelepiped, the suction cup bottom plate 52120b has a cavity (not shown in the figure), and the lower bottom surface of the suction cup bottom plate 52120b is provided with an opening The suction cup flexible layer 52120c covers the suction cup bottom plate 52120b with the corresponding opening, an air interface 52120a connected to the cavity is opened on the side of the suction cup bottom plate 52120b, and a plurality of air holes 52120d are opened on the suction cup flexible layer 52120c. The air holes 52120d penetrate the suction cup flexible layer 52120c along the direction from the suction cup flexible layer 52120c to the suction cup bottom plate 52120b, and the plurality of air holes 52120d are arranged in a matrix manner.

[0101] The gas interface 52120a can be connected to a compressed gas circuit and a vacuum generator (not shown in the figure).

[0102] The above-mentioned suction cup bottom plate 52120b has a cavity in the middle (not shown in the figure), a side connecting air interface 52120a, and a bottom connecting air hole 52120d. The suction cup bottom plate 52120b can be made of aluminum, iron, stainless steel or plastic, and this embodiment does not make any specific limitation on this.

[0103] The above-mentioned suction cup flexible layer 52120c, the surface solid electrolyte layer in the positive electrode unit 93 is relatively brittle and easy to break. The first manipulator must ensure flexible contact with the positive electrode unit 93 when picking up and placing. The positive electrode unit 93 moves smoothly without bending or folding. The suction cup flexible layer 52120c can be made of non-metallic materials, such as polyurethane or sponge. Of course, other elastic non-metallic materials can also be used according to actual conditions. This embodiment does not make specific restrictions on this. The suction cup flexible layer 52120c is attached to the suction cup bottom plate 52120b;

[0104] When the above-mentioned air hole 52120d grabs the positive electrode unit 93, the vacuum generator works to generate negative pressure in the cavity of the suction cup bottom plate 52120b, and the positive electrode unit 93 is adsorbed through the air hole 52120d. When the positive electrode unit 93 is placed, the compressed gas path blows positive pressure gas into the cavity of the suction cup bottom plate 52120b, and the positive electrode unit 93 is blown off through the air hole 52120d.

[0105] The unit defect detection component 53 includes a positive electrode unit defect detection component 531 and a negative electrode unit defect detection component 532. The positive electrode unit loading robot 521 is used to grab the positive electrode unit 93 to the defect detection station corresponding to the positive electrode unit defect detection component 531. The defect detection station is provided with a third visual detection mechanism (not shown in the figure) to detect the surface of the positive electrode unit 93 to detect whether the positive electrode unit 93 has defects such as convex points, concave points, leaking foil, and scratches. First, the front side of the positive electrode unit 93 is detected. After the detection is completed, the structure of the positive electrode unit 93 can be flipped by using an inverted vacuum belt or a rotating cylinder, and the positive electrode unit 93 is flipped 180°. Then the back side of the positive electrode unit 93 is detected. Unqualified products will be marked, and the detection data will be uploaded to the system storage record for easy traceability. A waste box is set next to the defect detection station. When unqualified products are unloaded, they will be placed in the waste box by the positive electrode unit loading robot 521.

[0106] The negative electrode unit 92 is grabbed by the negative electrode unit loading manipulator 522 to the defect detection station corresponding to the negative electrode unit defect detection component 532. The defect detection station is provided with a third visual detection mechanism to detect the surface of the negative electrode unit 92 to detect whether the negative electrode unit 92 has defects such as convex points, concave points, leaking foil, and scratches. The front of the negative electrode unit 92 is first detected. After the detection is completed, the structure of the negative electrode unit 92 can be flipped by using an inverted vacuum belt or a rotating cylinder, and the negative electrode unit 92 is flipped 180°. The back of the negative electrode unit 92 is then detected. Unqualified products will be marked, and the detection data will be uploaded to the system storage record for easy traceability. A waste box is set next to the defect detection station, and unqualified products will be placed in the waste box by the negative electrode unit loading manipulator 522 when unloading.

[0107] The unit positioning platform 54 includes a positive electrode unit positioning platform 541 and a negative electrode unit positioning platform 542, wherein:

[0108] The positive electrode unit loading robot 521 grabs the positive electrode unit 93 from the defect detection station to the positive electrode unit positioning platform 541. The positive electrode unit positioning platform 541 is an automated XYR three-axis displacement platform that can adjust the position of the positive electrode unit 93 along the X direction, Y direction and R (rotation) direction. There is a fourth visual detection structure above the station (such as an industrial camera. The industrial camera can use a CCD camera, not shown in the figure). The fourth visual detection mechanism takes a photo to detect the position information of the positive electrode unit 93, transmits it to the control device 4, and compares it with the position of the standard positive electrode unit 93. Then, the control device 4 is used to control the movement of the XYR three-axis displacement platform to adjust the position of the positive electrode unit 93 along the X axis, Y axis and R axis to ensure the accuracy of the position of the positive electrode unit 93 and improve the subsequent lamination accuracy.

[0109] The negative electrode unit loading robot 522 grabs the negative electrode unit 92 from the defect detection station to the negative electrode unit positioning platform 542. The negative electrode unit positioning platform 542 is an automated XYR three-axis displacement platform that can adjust the position of the negative electrode unit 92 along the X direction, Y direction and R (rotation) direction. There is a fourth visual inspection structure (such as an industrial camera) above the station. The fourth visual inspection mechanism takes a photo to detect the position information of the negative electrode unit 92, transmits it to the control device 4, and compares it with the position of the standard negative electrode unit 92. Then, the control device 4 is used to control the movement of the XYR three-axis displacement platform to adjust the position of the negative electrode unit 92 along the X axis, Y axis and R axis to ensure the accuracy of the position of the negative electrode unit 92 and improve the subsequent lamination accuracy.

[0110] The model of the above-mentioned XYR three-axis displacement platform can be LS125-LM. Of course, other models can also be used according to actual conditions, and this embodiment does not make specific limitations on this.

[0111] It should be noted that: in this embodiment, the first visual detection mechanism 33, the second visual detection mechanism 11, the third visual detection mechanism and the fourth visual detection mechanism can all be industrial cameras, whose model is MV-13MG, and the above-mentioned industrial cameras can be CCD cameras.

[0112] The unit transfer robot 55 includes a positive electrode unit transfer robot 551 and a negative electrode unit transfer robot 552. The positive electrode unit transfer robot 551 is used to grab the positive electrode unit 93 from the positive electrode unit positioning platform 541 to the battery cell stacking table 12 in the stacking table assembly 1. The positive electrode unit transfer robot 551 has the same structure as the positive electrode unit loading robot 521; the negative electrode unit transfer robot 552 is used to grab the negative electrode unit 92 from the negative electrode unit positioning platform 542 to the battery cell stacking table 12 in the stacking table assembly 1. The negative electrode unit transfer robot 552 has the same structure as the negative electrode unit loading robot 522.

[0113] Through the mutual coordination among the positive electrode unit loading assembly 510, the positive electrode unit loading robot 521, the positive electrode unit defect detection assembly 531, the positive electrode unit positioning platform 541 and the positive electrode unit transfer robot 551, the efficiency and accuracy of the processing of the positive electrode unit 93 can be ensured, and the production efficiency and product quality of the all-solid-state battery cells can be improved. It can be understood that: not only can the position accuracy of the positive electrode unit during the stacking process be ensured, thereby improving the quality and performance of the initial battery cells, but also the transportation and stacking of the positive electrode unit 93 can be completed accurately, reducing the time required for manual operation, thereby reducing labor intensity, and avoiding errors and damage caused by human factors.

[0114] Through the mutual coordination among the negative electrode sheet unit loading assembly 511, the negative electrode sheet unit loading robot 522, the negative electrode sheet unit defect detection assembly 532, the negative electrode sheet unit positioning platform 542 and the negative electrode sheet unit transfer robot 552, the efficiency and accuracy of the processing of the negative electrode sheet unit 92 can be ensured, and the production efficiency and product quality of the all-solid-state battery cells can be improved. It can be understood that: not only can the position accuracy of the negative electrode sheet during the stacking process be ensured, thereby improving the quality and performance of the initial battery cells, but also the transportation and stacking of the negative electrode sheet unit 92 can be completed accurately, reducing the time required for manual operation, thereby reducing labor intensity, and avoiding errors and damage caused by human factors.

[0115] In an optional embodiment, the unit sheet 9 includes a protection sheet 91;

[0116] The protective sheet preparation and conveying structure 7 includes a second unit loading assembly 71 and a second unit loading robot 72. The second unit loading robot 72 is located downstream of the second unit loading assembly 71 and upstream of the stacking table assembly 1. The second unit loading assembly 71 is used to load the protective sheet 91, and the second unit loading robot 72 is used to transfer the protective sheet 91 to the stacking table assembly 1.

[0117] The second unit loading assembly 71 may be a protection sheet 91 loading assembly, and the structure of the protection sheet 91 loading assembly is the same as that of the positive sheet unit loading assembly 510, which will not be described in detail here. The second unit loading robot 72 may be a second unit loading robot 72, and the structure of the second unit loading robot 72 is the same as that of the positive sheet unit loading robot 521, which will not be described in detail here.

[0118] By adopting the above scheme, through the cooperation between the second unit loading assembly 71 and the second unit loading robot 72, the second unit loading robot 72 can accurately place the protective sheet 91 at the specified position, ensuring the smooth progress of subsequent processes, while reducing quality problems caused by position deviations, and at the same time can achieve fast and accurate loading operations, shortening the cycle time of each process, thereby improving the output rate of the overall production line.

[0119] Example 2, continue to refer to Figure 1 and Figure 2As shown, this embodiment provides a method for manufacturing an all-solid-state battery cell, wherein the all-solid-state battery cell is prepared by using manufacturing equipment for the all-solid-state battery cell, and the manufacturing equipment for the all-solid-state battery cell is the manufacturing equipment for the all-solid-state battery cell mentioned above; the stacking table assembly 1 stacks different unit sheets 9 according to a preset order to form an initial battery cell; the initial battery cell is composited to form a composite battery cell by using a hot pressing composite assembly 2; the periphery of the composite battery cell is sprayed with glue and positioned by using a rotary spraying assembly 3 to form an all-solid-state battery cell, or the periphery of the initial battery cell is sprayed with glue and positioned by using a rotary spraying assembly 3; the initial battery cell after being positioned by spraying with glue is composited by using a hot pressing composite assembly 2 to form an all-solid-state battery cell.

[0120] Specifically, combined Figure 1 and Figure 2 As shown, when the hot pressing composite assembly 2 is located upstream of the rotary spray assembly 3, the hot pressing composite assembly 2 includes a first working position. At the first working position, the initial battery cell is pressurized and heated so that the adhesive materials on different unit sheets 9 (such as two protective sheets 91, two negative electrode sheet units 92 and one positive electrode sheet unit 93) in the initial battery cell and the adjacent unit sheets 9 are bonded and composited together to form a composite battery cell.

[0121] Preferably: the hot-pressed composite component 2 also includes a second working position, the initial battery cell is pressurized and heated and then moved to the second working position, at the second working position, the composite battery cell is tested for short circuit and thickness, and unqualified composite battery cells are marked and moved to the waste area for subsequent processing. Specifically, at the second working position, a short circuit test mechanism is used to test the composite battery cell for short circuit, and a thickness detection mechanism is used to test the thickness of the composite battery cell. The short circuit test mechanism and thickness detection mechanism are used to detect whether the composite battery cell is short-circuited and whether the thickness exceeds the standard, and unqualified composite battery cells are marked and moved to the waste area for subsequent processing.

[0122] The short circuit test mechanism can use an insulation resistance tester, the model of which can be ANBTS7101 series produced by Ainol Instruments. The thickness detection mechanism can use a thickness detection sensor, such as LJ-X8000 series sensors produced by Keyence.

[0123] The rotating glue spraying assembly 3 sprays glue around the sides of the qualified composite battery cell to form an insulating glue layer 35 (such as Figure 5 As shown), the unit sheets 9 of different polarities in the composite battery cell are insulated from each other, and the thickness of the insulating glue layer 35 can range from 0.01 to 5 mm.

[0124] When the rotary glue spraying assembly 3 is located upstream of the hot pressing composite assembly 2, the rotary glue spraying assembly 3 sprays glue on the periphery of the initial battery cell to form a layer of insulating glue 35, so that the unit sheets 9 of different polarities in the initial battery cell after the glue spraying are insulated from each other. The thickness range of the above insulating glue layer 35 can also be 0.01-5mm.

[0125] The hot pressing composite assembly 2 includes a first working position, at which the initial battery cell after spraying and positioning is pressurized and heated so that the adhesive materials on different unit sheets 9 (such as two protective sheets 91, two negative electrode sheet units 92 and one positive electrode sheet unit 93) in the initial battery cell and the adjacent unit sheets 9 are bonded and composited together to form an all-solid-state battery cell;

[0126] Preferably, the hot pressing composite assembly 2 also includes a second working position, the all-solid-state battery cell is transferred to the second working position, and at the second working position, the all-solid-state battery cell is short-circuited and tested for thickness, and unqualified all-solid-state batteries are marked and moved to a waste area for subsequent processing. It should be noted that the hot pressing composite assembly 2 and the rotary spray assembly 3 can be appropriately adjusted in order according to different preparation processes, and this embodiment does not make specific limitations.

[0127] The above-mentioned different unit sheets 9 include a protective sheet 91, a positive electrode sheet unit 93 and a negative electrode sheet unit 92. The protective sheet 91 includes an upper protective sheet 910 and a lower protective sheet 911. In this embodiment, the number of negative electrode sheet units 92 is greater than the number of positive electrode sheet units 93. The positive electrode sheet unit 93 is located between adjacent negative electrode sheet units 92. The upper protective sheet 910 and the lower protective sheet 911 are stacked on the side of the top negative electrode sheet unit 92 and the bottom negative electrode sheet unit 92 away from the positive electrode sheet unit 93, respectively. The lower protective sheet 910 and the lower protective sheet 911 are stacked on the side of the top negative electrode sheet unit 92 and the bottom negative electrode sheet unit 92 away from the positive electrode sheet unit 93, respectively. Sheet 911, a first negative electrode sheet unit 921, a positive electrode sheet unit 93, a second negative electrode sheet unit 922...an upper protective sheet 910, the upper protective sheet 910 and the lower protective sheet 911 are used to protect the unit sheets 9 on the upper and lower surfaces of the initial battery cell without a diaphragm, the initial battery cell is bonded into a composite battery cell by a hot pressing composite component 2, and the composite battery cell is positioned by spraying glue on each side using a rotating spraying component 3 to form an all-solid-state battery cell, thereby ensuring the insulation between different unit sheets 9 in the all-solid-state battery cell, thereby producing high-quality all-solid-state battery cells.

[0128] The above manufacturing method is used to form a lower protective sheet 911, a negative electrode sheet unit 92, a positive electrode sheet unit 93, a negative electrode sheet unit 92...an upper protective sheet 910. The upper protective sheet 910 and the lower protective sheet 911 are used to protect the unit sheets 9 on the upper and lower surfaces of the initial battery cell without a diaphragm. The various sides of the initial battery cell are first sprayed with glue and positioned by a rotating spray glue assembly 3 to ensure the insulation between different unit sheets 9 in the initial battery cell after spray glue positioning. The all-solid-state battery cell is then composited through a hot pressing composite assembly 2 to form an all-solid-state battery cell. Preferably, the all-solid-state battery cell is tested to produce high-quality all-solid-state battery cells.

[0129] Preferably, before the stacking table assembly 1 stacks different unit sheets 9 according to a preset order to form an initial battery cell, it also includes: using the positive electrode unit preparation conveying mechanism 5, the negative electrode unit preparation conveying mechanism 6, and the protective sheet preparation conveying structure 7 to transfer the different unit sheets 9 to the stacking table assembly 1.

[0130] Example 3, refer to Figure 2 , Figure 12-13 As shown, Fig.12 is a schematic structural diagram of a unit cell in another direction provided by the present invention; Fig.13 It is a structural schematic diagram of a unit sheet in another direction; the present embodiment provides an all-solid-state battery cell, which is manufactured using an all-solid-state battery cell preparation device, and the all-solid-state battery cell preparation device is the all-solid-state battery cell preparation device mentioned above; the all-solid-state battery cell includes a protective sheet 91, a negative electrode sheet unit 92 and a positive electrode sheet unit 93, the protective sheet 91 includes an upper protective sheet 910 and a lower protective sheet 911, the negative electrode sheet unit 92 includes a first negative electrode sheet unit 921 and a second negative electrode sheet unit 922, wherein the positive electrode sheet unit 93 is located between the first negative electrode sheet unit 921 and the second negative electrode sheet unit 922, and the lower protective sheet 911 includes a first protective sheet 910 and a lower protective sheet 911, and the negative electrode sheet unit 92 includes a first negative electrode sheet unit 921 and a second negative electrode sheet unit 922. The protective sheet 911 is located on the side of the first negative electrode sheet unit 921 away from the positive electrode sheet unit 93, and the upper protective sheet 910 is located on the side of the second negative electrode sheet unit 922 away from the positive electrode sheet unit 93; along the direction from the first negative electrode sheet unit 921 to the second negative electrode sheet unit 922, the first negative electrode sheet unit 921 and the second negative electrode sheet unit 922 both include negative electrode materials and a first solid electrolyte located on both sides of the negative electrode collector 9212; along the direction from the first negative electrode sheet unit 921 to the second negative electrode sheet unit 922, the positive electrode sheet unit 93 includes positive electrode materials and a second solid electrolyte located on both sides of the positive electrode collector.

[0131] Continue to refer to Figure 2 and Fig.13As shown, the all-solid-state battery cell includes a protective sheet 91, a negative electrode sheet unit 92 and a positive electrode sheet unit 93, and the protective sheet 91, the negative electrode sheet unit 92 and the positive electrode sheet unit 93 are different unit sheets 9 respectively; the protective sheet 91 includes a lower protective sheet 911 and an upper protective sheet 910. In this embodiment, only two negative electrode sheet units 92, one positive electrode sheet unit 93, one upper protective sheet 910 and one lower protective sheet 911 are used as examples for explanation, such as the lower protective sheet 911, the first negative electrode sheet unit 921, the positive electrode sheet unit 93, the second negative electrode sheet unit 922 and the upper protective sheet 910 stacked in sequence from bottom to top are used as examples for explanation, wherein the number of negative electrode sheet units 92 and the number of positive electrode sheet units 93 are both several, and several negative electrode sheet units 92 and positive electrode sheet units 93 are alternately stacked, and the number of negative electrode sheet units 92 is greater than the number of positive electrode sheet units 93, so that the battery has a higher energy density. It should be noted that the size of the upper protective sheet 910 is the same as that of the lower protective sheet 911, the size of the positive electrode unit 93 is the same as that of the negative electrode unit 92, the size of the upper protective sheet 910 is a, the size of the positive electrode unit 93 is b, and a is greater than b.

[0132] Optionally, if a is too small, the processing and manufacturing precision requirements will be too high, which will make processing difficult. If a is too large, it will not only cause volume waste, but also reduce the battery energy density. Optionally, in this embodiment, a is greater than b 0.01mm-5mm, which can not only reduce the processing cost, but also avoid volume waste, while also improving the battery energy density.

[0133] Continue to refer to Figure 8 As shown, when stacking, the second visual inspection mechanism 11, the battery stacking platform 12 and the battery pressing structure 13 cooperate with each other to align the centers of the lower protective sheet 911, the negative electrode sheet unit 92, the positive electrode sheet unit 93 and the upper protective sheet 910 to avoid errors in the stacking positions of different unit sheets 9, thereby ensuring the accuracy of the stacking positions of different unit sheets 9. It should be noted that the above dimensions include length dimensions and width dimensions.

[0134] Continue to refer to Fig.12As shown, a lower protective sheet 911, a first negative electrode sheet unit 921, a positive electrode sheet unit 93, a second negative electrode sheet unit 922 and an upper protective sheet 910 are stacked in sequence from bottom to top as an example; the above-mentioned negative electrode material includes a first negative electrode material 9211 and a second negative electrode material 9213, and the first solid electrolyte includes a first sub-solid electrolyte 9210 and a second sub-solid electrolyte 9214. Therefore, along the direction from the first negative electrode sheet unit 921 to the second negative electrode sheet unit 922, the first negative electrode sheet unit 921 and the second negative electrode sheet unit 922 both include a first sub-solid electrolyte 9210, a first negative electrode material 9211, a negative electrode current collector 9212, a second negative electrode material 9213 and a second sub-solid electrolyte 9214 stacked in sequence, wherein the first sub-solid electrolyte 9210 in the first negative electrode sheet unit 921 is close to the side of the lower protective sheet 911, and the second sub-solid electrolyte 9214 in the second negative electrode sheet unit 922 is close to the side of the upper protective sheet 910.

[0135] The above-mentioned positive electrode material includes a first positive electrode material 932 and a second positive electrode material 934, and the second solid electrolyte includes a third sub-solid electrolyte 931, a fourth sub-solid electrolyte 935 and a fifth sub-solid electrolyte 936. The direction from the first negative electrode sheet unit 921 to the second negative electrode sheet unit 922, the positive electrode sheet unit 93 includes a third sub-solid electrolyte 931, a first positive electrode material 932, a positive electrode collector 933, a second positive electrode material 934 and a fourth sub-solid electrolyte 935 stacked in sequence, and the edges of the first positive electrode material 932 and the second positive electrode material 934 are respectively surrounded by a fifth sub-solid electrolyte 936, which is located in the frame of the first positive electrode material 932 and the second positive electrode material 934, wherein the third sub-solid electrolyte 931 is bonded to the second sub-solid electrolyte 9214 in the first negative electrode sheet unit 921, and the fourth sub-solid electrolyte 935 is bonded to the third sub-solid electrolyte 931 in the second negative electrode sheet unit 922.

[0136] The upper protective sheet 910 and the lower protective sheet 911 protect the first negative electrode sheet unit 921 and the second negative electrode sheet unit 922. When the size of the upper protective sheet 910 and the lower protective sheet 911 is larger than the size of the negative electrode sheet unit 92, and the rotating spray glue assembly 3 is used to provide side guards when spraying glue on the initial battery cell, a glue spraying channel is formed.

[0137] The materials of the upper protective sheet 910 and the lower protective sheet 911 include plastic, rubber or silicone, wherein the plastic may be PET (polyethylene terephthalate) and PUR (polyurethane), wherein PET has good transparency, mechanical strength and chemical resistance; PUR has good toughness, bending and impact resistance. Rubber has high elasticity, insulation, low cost, easy processing and wear resistance; silicone has excellent high temperature resistance, electrical insulation and low temperature resistance, and can maintain stability at extreme temperatures. A viscous material is added to the side of the upper protective sheet 910 close to the second sub-solid electrolyte 9214 and a layer of adhesive is coated on the surface of the lower protective sheet 911 close to the first sub-solid electrolyte 9210.

[0138] On the premise of ensuring the performance of the first sub-solid electrolyte 9210, the second sub-solid electrolyte 9214, the third sub-solid electrolyte 931, the fourth sub-solid electrolyte 935 and the fifth sub-solid electrolyte 936, bonding materials such as adhesives can be added to the first sub-solid electrolyte 9210, the second sub-solid electrolyte 9214, the third sub-solid electrolyte 931, the fourth sub-solid electrolyte 935 and the fifth sub-solid electrolyte 936 to ensure the tight bonding and stable structure between the lower protective sheet 911, the first negative electrode sheet unit 921, the positive electrode sheet unit 93, the second negative electrode sheet unit 922 and the upper protective sheet 910, which can improve the bonding strength between different unit sheets 9, maintain close contact between the layers inside the all-solid-state battery cell, ensure the structural stability of the all-solid-state battery cell during the charging and discharging process, and promote the transmission of lithium ions between the electrode and the electrolyte, thereby improving the ionic conductivity of the battery.

Claims

1. A manufacturing device for an all-solid-state battery cell, characterized in that: It comprises a lamination table assembly, a hot pressing composite assembly, a rotary glue spraying assembly and a control device, wherein the lamination table assembly is located upstream of the hot pressing composite assembly and the rotary glue spraying assembly; the hot pressing composite assembly is located upstream of the rotary glue spraying assembly, or the rotary glue spraying assembly is located upstream of the hot pressing composite assembly; The stacking table assembly is used to stack different unit sheets to form an initial battery core, the hot pressing composite assembly is used for hot pressing composite, and the rotary glue spraying assembly is used for glue spraying positioning; The control device is used to control the lamination table assembly, the hot pressing composite assembly and the rotary glue spraying assembly.

2. The manufacturing equipment of the all-solid-state battery cell according to claim 1, characterized in that: The hot-pressed composite assembly includes a hydraulic system and a pressurizing member; The pressurizing member comprises an upper pressurizing plate and a lower pressurizing plate which are arranged opposite to each other, the upper pressurizing plate is connected to the hydraulic system on a side away from the lower pressurizing plate, and a heating core is respectively arranged on the upper pressurizing plate and the lower pressurizing plate, and the heating core is used to generate heat; The upper pressing plate and the lower pressing plate are both provided with temperature sensors, and the temperature sensors are used to detect the temperature of different positions of the upper pressing plate and the lower pressing plate in real time; The hydraulic system, the heating core and the temperature sensor are respectively connected to the control device.

3. The manufacturing equipment of the all-solid-state battery cell according to claim 1, characterized in that: The rotary glue spraying assembly comprises a rotating mechanism, a glue spraying mechanism, a first visual inspection mechanism and a glue curing mechanism, wherein the rotating mechanism is located below the glue spraying mechanism and the glue curing mechanism, and the first visual inspection mechanism is located above the glue spraying mechanism and the glue curing mechanism; The first visual inspection mechanism is used to take real-time photos of the initial battery cell, the rotating mechanism is used to rotate the initial battery cell, the glue spraying mechanism is used to spray glue on the rotated initial battery cell; the glue curing mechanism is used to position the initial battery cell after glue spraying; The rotating mechanism, the glue spraying mechanism, the first visual inspection mechanism and the glue curing mechanism are respectively connected to the control device.

4. The manufacturing equipment of the all-solid-state battery cell according to claim 1, characterized in that: The stacking platform assembly includes a second visual inspection mechanism, a battery cell stacking platform and a battery cell pressing structure, wherein the battery cell pressing structure is located above the battery cell stacking platform, and the second visual inspection mechanism is located on a side of the battery cell pressing structure away from the battery cell stacking platform; The second visual detection mechanism is used to take real-time photos of the positions of different unit sheets, and the battery cell stacking platform is used to drive the battery cell pressing structure to move to the positions of different unit sheets along the first direction, the second direction and the rotation direction, wherein the first direction intersects with the second direction, and the rotation direction is to rotate the battery cell stacking platform clockwise or counterclockwise, and the battery cell pressing structure is used to stack different unit sheets and press the stacked different unit sheets; The second visual inspection mechanism, the battery cell stacking platform and the battery cell pressing structure are respectively connected to the control device.

5. The manufacturing equipment of the all-solid-state battery cell according to claim 1, characterized in that: Also includes: Positive electrode unit preparation and conveying mechanism, negative electrode unit preparation and conveying mechanism, protective sheet preparation and conveying structure, battery cell lower stacking robot, battery cell upper buffer robot and buffer assembly, among which, The positive electrode unit preparation conveying mechanism, the negative electrode unit preparation conveying mechanism and the protection sheet preparation conveying structure are arranged in parallel; the lower stacking stage robot of the battery cell is located downstream of the stacking stage assembly and upstream of the upper buffer robot of the battery cell; The cache component is located downstream of the cache manipulator on the battery cell and upstream of the hot pressing composite component, or the cache component is located downstream of the cache manipulator on the battery cell and upstream of the rotary glue spraying component; The positive electrode sheet unit preparation conveying mechanism, the negative electrode sheet unit preparation conveying mechanism and the protective sheet preparation conveying structure are respectively used to convey different unit sheets to the stacking table assembly; the lower cell stacking table robot is used to grab the initial cell; the upper cell cache robot is used to transfer the initial cell grabbed by the lower cell stacking table robot to the cache assembly.

6. The manufacturing equipment of the all-solid-state battery cell according to claim 5, characterized in that: Also includes: Battery cell transfer robot, battery cell unloading robot, battery cell pull belt and battery cell unloading assembly; The battery cell circulation robot is located downstream of the cache component and upstream of the hot pressing composite component; or, the battery cell circulation robot is located downstream of the cache component and upstream of the rotary glue spraying component; The battery cell unloading robot is located downstream of the hot pressing composite assembly and upstream of the battery cell drawstring and the battery cell unloading assembly; or, the battery cell unloading robot is located downstream of the rotary glue spraying assembly and upstream of the battery cell drawstring and the battery cell unloading assembly; The battery cell pull belt and the battery cell blanking assembly are arranged to intersect each other; When the cache component is located upstream of the hot-pressing composite component, the battery cell transfer robot is used to transfer the initial battery cell placed in the cache component to the hot-pressing composite station corresponding to the hot-pressing composite component; the battery cell unloading robot is used to transfer the initial battery cell after hot-pressing composite to the rotary glue spraying station corresponding to the rotary glue spraying component; When the cache component is located upstream of the rotary glue spraying component, the battery cell transfer robot is used to transfer the initial battery cell placed in the cache component to the rotary glue spraying station corresponding to the rotary glue spraying component; the battery cell unloading robot is used to transfer the initial battery cell after hot pressing and compounding to the hot pressing and compounding station corresponding to the hot pressing and compounding component; When the battery cell unloading robot is located downstream of the hot pressing composite component and upstream of the battery cell pull belt and the battery cell unloading component, the battery cell pull belt is used to transfer the unqualified initial battery cells after hot pressing composite to the waste outlet; the battery cell unloading component is used to transfer the qualified initial battery cells after hot pressing composite to the material taking outlet; When the battery cell unloading robot is located downstream of the rotating glue spraying assembly and upstream of the battery cell pull belt and the battery cell unloading assembly, the battery cell pull belt is used to transfer the unqualified initial battery cells after the glue spraying positioning to the waste port; the battery cell unloading assembly is used to transfer the qualified initial battery cells after the glue spraying positioning to the feeding port.

7. The manufacturing equipment of the all-solid-state battery cell according to claim 5, characterized in that: The positive electrode sheet unit preparation conveying mechanism and the negative electrode sheet unit preparation conveying mechanism both include a first unit loading component, a first unit loading manipulator, a unit defect detection component, a unit positioning platform and a unit transfer manipulator; The first unit loading robot is located downstream of the first unit loading assembly and upstream of the unit defect detection assembly; the unit positioning platform is located downstream of the unit defect detection assembly and upstream of the unit transfer robot; the unit transfer robot is located upstream of the stacking table assembly; The first unit loading component is used to load the unit chips with different polarities; the first unit loading manipulator is used to grab the unit chips with different polarities to a preset station; the unit defect detection component is used to detect the unit chips with different polarities; The unit positioning platform is used to position the unit pieces with different polarities after detection; the unit transfer robot is used to grab the unit pieces with different polarities after positioning to the battery cell stacking station.

8. The manufacturing equipment of the all-solid-state battery cell according to claim 5, characterized in that: The unit sheet includes a protection sheet; The protective sheet preparation and conveying structure comprises a second unit loading assembly and a second unit loading robot, wherein the second unit loading robot is located downstream of the second unit loading assembly and upstream of the stacking table assembly; The second unit loading assembly is used to load the protection sheet, and the second unit loading robot is used to transfer the protection sheet to the stacking table assembly.

9. A method for manufacturing an all-solid-state battery cell, characterized in that: The all-solid-state battery cell is prepared by using an all-solid-state battery cell manufacturing device, wherein the all-solid-state battery cell manufacturing device is the all-solid-state battery cell manufacturing device according to any one of claims 1 to 8; The stacking stage assembly stacks the different unit sheets according to a preset order to form an initial battery cell; The initial battery core is compounded by the hot pressing compound assembly to form a composite battery core; the periphery of the composite battery core is sprayed with glue and positioned by the rotary glue spraying assembly to form a fully solid battery core, or, The rotating glue spraying assembly is used to spray glue on the periphery of the initial battery core for positioning; and the hot pressing composite assembly is used to composite the initial battery core after the glue spraying for positioning to form a full solid-state battery core.

10. An all-solid-state battery cell, characterized in that: The all-solid-state battery cell is prepared by using an all-solid-state battery cell manufacturing device, wherein the all-solid-state battery cell manufacturing device is the all-solid-state battery cell manufacturing device according to any one of claims 1 to 8; The all-solid-state battery cell comprises a protective sheet, a negative electrode sheet unit and a positive electrode sheet unit, wherein the protective sheet comprises an upper protective sheet and a lower protective sheet, and the negative electrode sheet unit comprises a first negative electrode sheet unit and a second negative electrode sheet unit, wherein: The positive electrode sheet unit is located between the first negative electrode sheet unit and the second negative electrode sheet unit, the lower protective sheet is located on the side of the first negative electrode sheet unit away from the positive electrode sheet unit, and the upper protective sheet is located on the side of the second negative electrode sheet unit away from the positive electrode sheet unit; Along the direction from the first negative electrode sheet unit to the second negative electrode sheet unit, the first negative electrode sheet unit and the second negative electrode sheet unit both include negative electrode materials and a first solid electrolyte located on both sides of a negative electrode current collector; Along the direction from the first negative electrode sheet unit to the second negative electrode sheet unit, the positive electrode sheet unit includes a positive electrode material and a second solid electrolyte located on both sides of a positive electrode current collector.

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