Double-nozzle lithium ion solid-state battery 3D printing equipment

Abstract

The utility model discloses double-nozzle lithium ion solid-state battery 3D printing equipment which comprises a machine base and a machine frame located on the machine base, a touch screen is arranged on the front face of the machine base, and a first air pressure adjusting knob and a second air pressure adjusting knob are arranged on the two sides of the touch screen respectively. A first extrusion switch and a first pressure gauge are arranged above the first air pressure adjusting knob, a second extrusion switch and a second pressure gauge are arranged above the second air pressure adjusting knob, a vacuum adsorption platform used for laying a current collector is arranged on the top of the machine base, and the machine base is provided with an air pressure control system and a Y-axis movement assembly. A Z-axis movement assembly is arranged on the machine frame, the Z-axis movement assembly is connected with an X-axis movement assembly, and a double-nozzle switching assembly is arranged on the X-axis movement assembly. According to the 3D printing device, 3D printing of the lithium ion solid-state battery is achieved through double-nozzle switching, the manufacturing process is simple and convenient, the forming precision and the forming efficiency are high, development and use of the lithium ion solid-state battery can be improved, and propelling of the solid-state battery is accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium ion batteries, and specifically relates to a double-nozzle lithium ion solid-state battery 3D printing device. Background Art

[0002] As the globalization process continues to advance, non-renewable energy continues to be consumed. Humans are in urgent need of developing renewable energy. The transformation of energy structure and the development and utilization of new energy sources are imminent in various countries. As an important device for energy storage, lithium-ion batteries have high energy density, light weight, low self-discharge efficiency and long cycle life. They are the first choice for energy accessories of electronic products. Their market is also gradually expanding. Drones, robots, electric vehicles and various smart devices all have demand for lithium-ion batteries.

[0003] In the existing technology, traditional lithium-ion batteries include four major components: positive electrode, negative electrode, electrolyte, and diaphragm. Solid-state batteries replace the electrolyte with a solid electrolyte. The key difference between solid-state batteries and traditional lithium-ion batteries is that the electrolyte is changed from liquid to solid, taking into account safety, high energy density and other performance. The energy density of solid-state batteries is twice that of liquid batteries. In the liquid electrolyte of lithium batteries, organic solvents are flammable and highly corrosive, and have poor oxidation resistance and cannot solve the problem of lithium dendrites, so there is a risk of thermal runaway. Solid-state batteries replace part or all of the electrolyte with a solid electrolyte, which can greatly improve the safety and energy density of the battery.

[0004] However, the preparation of solid-state batteries in the prior art mainly involves using various processes to separately prepare different components of solid-state batteries under laboratory conditions and then assembling them. That is, the positive electrode and the electrolyte are first formed separately, and then the positive electrode and the electrolyte are stacked together by thin film lamination. The process is cumbersome, the process is complicated, the efficiency is low, and it is not suitable for mass production of solid-state batteries. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a dual-nozzle lithium-ion solid-state battery 3D printing device in view of the deficiencies in the above-mentioned prior art. The device has a simple structure, a reasonable design, and is easy to implement. The 3D printing of lithium-ion solid-state batteries can be achieved by switching between the dual nozzles. The positive electrode slurry is printed on the current collector by one nozzle, and the electrolyte is directly printed on the positive electrode by the other nozzle. No film is required and the device can be directly formed. The manufacturing process is simple and convenient, and the forming accuracy and forming efficiency are high. The device is helpful to improve the development and use of lithium-ion solid-state batteries and accelerate the advancement of solid-state batteries. The effect is remarkable and the device is easy to promote.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a dual-nozzle lithium-ion solid-state battery 3D printing device, including a base and a frame located on the base, a touch screen is arranged on the front of the base, and a first air pressure regulating knob and a second air pressure regulating knob are respectively arranged on both sides of the touch screen, a first extrusion switch and a first pressure gauge are arranged above the first air pressure regulating knob, and a second extrusion switch and a second pressure gauge are arranged above the second air pressure regulating knob, a vacuum adsorption platform for laying a current collector is arranged on the top of the base, the base is provided with an air pressure control system and a Y-axis motion assembly for driving the vacuum adsorption platform to move, a Z-axis motion assembly is arranged on the frame, the Z-axis motion assembly is connected to an X-axis motion assembly, and a dual-nozzle switching assembly located above the vacuum adsorption platform is arranged on the X-axis motion assembly.

[0007] The above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device has a network cable interface and an emergency stop switch arranged on the side of the base.

[0008] In the above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device, the air pressure control system includes an air compressor for providing air pressure, the air compressor is connected to a first air pipe and a second air pipe, the first air pipe is provided with a first solenoid valve and a first pressure regulating valve in sequence along the direction of air flow, the second air pipe is provided with a second solenoid valve and a second pressure regulating valve in sequence along the direction of air flow, the first solenoid valve is controlled by a first extrusion switch, the first pressure regulating valve is controlled by a first air pressure regulating knob, the first pressure gauge is connected to the first pressure regulating valve and displays the first air pipe pressure, the second solenoid valve is controlled by a second extrusion switch, the second pressure regulating valve is controlled by a second air pressure regulating knob, and the second pressure gauge is connected to the second pressure regulating valve and displays the second air pipe pressure.

[0009] The above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device, the Y-axis motion assembly includes a Y-axis motor and a Y-axis motion base fixed in the machine base, the output shaft of the Y-axis motor is connected to a Y-axis screw, the Y-axis screw is provided with a Y-axis screw nut, the Y-axis screw nut is connected to a base plate for fixing a vacuum adsorption platform, the Y-axis motion base is provided with a Y-axis guide rail, the Y-axis guide rail slides with a Y-axis slider connected to the base plate, and the two ends of the Y-axis motion base are respectively provided with a first Y-axis limit switch and a second Y-axis limit switch.

[0010] The above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device, the Z-axis motion assembly includes a first Z-axis motor and a second Z-axis motor fixed in the machine base, and a first Z-axis guide rail and a second Z-axis guide rail fixed on the frame; the output shaft of the first Z-axis motor is connected to a first Z-axis screw rod, and the first Z-axis screw rod is provided with a first Z-axis screw rod nut, the output shaft of the second Z-axis motor is connected to a second Z-axis screw rod arranged parallel to the first Z-axis screw rod, and the second Z-axis screw rod is provided with a second Z-axis screw rod nut, a crossbeam is connected between the first Z-axis screw rod nut and the second Z-axis screw rod nut, a first Z-axis slider connected to the crossbeam slides on the first Z-axis guide rail, and a second Z-axis slider connected to the crossbeam slides on the second Z-axis guide rail.

[0011] The above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device, the X-axis motion assembly includes an X-axis motor and an X-axis guide rail fixed on the crossbeam, the output shaft of the X-axis motor is connected to an X-axis screw, the X-axis screw is provided with an X-axis screw nut, the X-axis screw nut is connected to a nozzle base for fixing the dual-nozzle switching assembly, an X-axis slider connected to the nozzle base slides on the X-axis guide rail, and a first X-axis limit switch and a second X-axis limit switch are respectively provided at both ends of the crossbeam.

[0012] The above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device, the dual-nozzle switching assembly includes two groups of nozzle control assemblies with the same structure, the nozzle control assembly includes a servo and a slide rail fixed on the nozzle base, the servo output shaft is connected to a circular steering disc, the circular steering disc is embedded with a cam, a nozzle slider slides on the slide rail, a material tube rack connected to the cam is fixed on the nozzle slider, and a printing material tube is installed in the material tube rack.

[0013] In the above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device, a plurality of micropores are arranged on the surface of the vacuum adsorption platform, square bosses are arranged between the micropores, thermal conductive silicone grease is pasted on the upper surface of the square bosses, a sealing groove is arranged at the bottom of the vacuum adsorption platform, and a cover plate is arranged at the bottom of the sealing groove.

[0014] In the above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device, a zero-point calibration component is arranged on the vacuum adsorption platform, and the zero-point calibration component includes an X-axis tool-setting optical fiber for measuring the X-axis position of the printing material tube, a Y-axis tool-setting optical fiber for measuring the Y-axis position of the printing material tube, and a Z-axis tool-setting optical fiber for measuring the Z-axis position of the printing material tube.

[0015] In the above-mentioned dual-nozzle lithium-ion solid-state battery 3D printing device, a CR-touch automatic leveling sensor is provided on the nozzle base.

[0016] Compared with the prior art, the utility model has the following advantages: the utility model has a simple structure, a reasonable design, and is easy to implement. By switching between dual nozzles, 3D printing of lithium-ion solid-state batteries is achieved. A positive electrode slurry is printed on the current collector by one nozzle, and an electrolyte is directly printed on the positive electrode by the other nozzle. No film is required and it can be directly formed. The manufacturing process is simple and convenient, and the forming accuracy and forming efficiency are high. It is helpful to improve the development and use of lithium-ion solid-state batteries and accelerate the advancement of solid-state batteries. The effect is remarkable and it is easy to promote.

[0017] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the composition of the air pressure control system of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the Y-axis motion assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the Z-axis motion assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the X-axis motion assembly of the utility model;

[0023] Figure 6 This is a structural schematic diagram of the nozzle control assembly of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the vacuum adsorption platform of the utility model;

[0025] Figure 8 for Figure 7 Side view of.

[0026] Description of reference numerals:

[0027] 1—base; 2—rack; 3—touch screen;

[0028] 4—First air pressure adjustment knob; 5—Second air pressure adjustment knob; 6—First extrusion switch;

[0029] 7—first pressure gauge; 8—second extrusion switch; 9—second pressure gauge;

[0030] 10—Vacuum adsorption platform; 11—Network cable interface; 12—Emergency stop switch;

[0031] 13—air compressor; 14—first air pipe; 15—second air pipe;

[0032] 16—first solenoid valve; 17—first pressure regulating valve; 18—second solenoid valve;

[0033] 19—second pressure regulating valve; 20—Y-axis motor; 21—Y-axis motion base;

[0034] 22—Y-axis screw rod; 23—Y-axis screw rod nut; 24—base plate;

[0035] 25—Y-axis guide rail; 26—Y-axis slider; 27—first Y-axis limit switch;

[0036] 28—second Y-axis limit switch; 29—first Z-axis motor; 30—second Z-axis motor;

[0037] 31—first Z-axis guide rail; 32—second Z-axis guide rail; 33—first Z-axis lead screw;

[0038] 34—first Z-axis screw nut; 35—second Z-axis screw; 36—second Z-axis screw nut;

[0039] 37—crossbeam; 38—first Z-axis slider; 39—second Z-axis slider;

[0040] 40—X-axis motor; 41—X-axis guide rail; 42—X-axis lead screw;

[0041] 43—X-axis screw nut; 44—nozzle base; 45—X-axis slider;

[0042] 46—1st X-axis limit switch; 47—2nd X-axis limit switch; 48—servo;

[0043] 49—slide rail; 50—round steering wheel; 51—cam;

[0044] 52—nozzle slider; 53—material tube rack; 54—printing material tube;

[0045] 55—micro hole; 56—square boss; 57—sealing groove;

[0046] 58—cover plate; 59—X-axis tool setting optical fiber; 60—Y-axis tool setting optical fiber;

[0047] 61—Z-axis tool setting optical fiber; 62—CR-touch automatic leveling sensor. DETAILED DESCRIPTION

[0048] like Figure 1As shown, the dual-nozzle lithium-ion solid-state battery 3D printing device of the utility model includes a base 1 and a frame 2 located on the base 1, a touch screen 3 is arranged on the front of the base 1, and a first air pressure regulating knob 4 and a second air pressure regulating knob 5 are respectively arranged on both sides of the touch screen 3, a first extrusion switch 6 and a first pressure gauge 7 are arranged above the first air pressure regulating knob 4, and a second extrusion switch 8 and a second pressure gauge 9 are arranged above the second air pressure regulating knob 5, a vacuum adsorption platform 10 for laying a current collector is arranged on the top of the base 1, the base 1 is provided with an air pressure control system and a Y-axis motion component for driving the vacuum adsorption platform 10 to move, a Z-axis motion component is arranged on the frame 2, the Z-axis motion component is connected to the X-axis motion component, and a dual-nozzle switching component located above the vacuum adsorption platform 10 is arranged on the X-axis motion component.

[0049] In this embodiment, a network cable interface 11 and an emergency stop switch 12 are provided on the side of the base 1 .

[0050] In specific implementation, the printer is connected to the Internet via the network cable interface 11; when the printer fails or the nozzle moves to the Z-axis lower limit, the emergency stop switch 12 can be pressed to make the Z-axis leave the lower limit trigger range.

[0051] In this embodiment, Figure 2 As shown, the air pressure control system includes an air compressor 13 for providing air pressure, the air compressor 13 is connected to a first air pipe 14 and a second air pipe 15, the first air pipe 14 is provided with a first solenoid valve 16 and a first pressure regulating valve 17 in sequence along the air flow direction, the second air pipe 15 is provided with a second solenoid valve 18 and a second pressure regulating valve 19 in sequence along the air flow direction, the first solenoid valve 16 is controlled by a first extrusion switch 6, the first pressure regulating valve 17 is controlled by a first air pressure regulating knob 4, the first pressure gauge 7 is connected to the first pressure regulating valve 17 and displays the pressure of the first air pipe 14, the second solenoid valve 18 is controlled by a second extrusion switch 8, the second pressure regulating valve 19 is controlled by a second air pressure regulating knob 5, and the second pressure gauge 9 is connected to the second pressure regulating valve 19 and displays the pressure of the second air pipe 15.

[0052] During specific implementation, the air compressor 13 provides the required air pressure, and the air compressor 13, the first solenoid valve 16 and the first pressure regulating valve 17 are connected through the first φ6mm air pipe 14, the operation of the first solenoid valve 16 is controlled by the first extrusion switch 6, the opening and closing degree of the first pressure regulating valve 17 is controlled by the first air pressure regulating knob 4, and the air outlet of the first pressure regulating valve 17 is connected to a printing nozzle to realize air pressure control to extrude the slurry; similarly, the air compressor 13, the second solenoid valve 18 and the second pressure regulating valve 19 are connected through the second φ6mm air pipe 15, the operation of the second solenoid valve 18 is controlled by the second extrusion switch 8, the opening and closing degree of the second pressure regulating valve 19 is controlled by the second air pressure regulating knob 5, and the air outlet of the second pressure regulating valve 19 is connected to another printing nozzle to realize air pressure control to extrude the slurry.

[0053] In this embodiment, Figure 3 As shown, the Y-axis motion assembly includes a Y-axis motor 20 and a Y-axis motion base 21 fixed in the machine base 1, the output shaft of the Y-axis motor 20 is connected to a Y-axis screw rod 22, the Y-axis screw rod 22 is provided with a Y-axis screw rod nut 23, the Y-axis screw rod nut 23 is connected to a base plate 24 for fixing the vacuum adsorption platform 10, the Y-axis motion base 21 is provided with a Y-axis guide rail 25, the Y-axis guide rail 25 is slid with a Y-axis slider 26 connected to the base plate 24, and the two ends of the Y-axis motion base 21 are respectively provided with a first Y-axis limit switch 27 and a second Y-axis limit switch 28.

[0054] During specific implementation, the Y-axis motor 20 works, driving the Y-axis screw 22 to rotate, and then driving the Y-axis screw nut 23 to move on the Y-axis screw 22. The base plate 24 is fixedly connected to the Y-axis screw nut 23, and the fixed vacuum adsorption platform 10 is fixedly connected to the base plate 24, so that the vacuum adsorption platform 10 can move on the Y-axis guide rail 25 through the Y-axis slider 26 to achieve movement in the Y-axis direction.

[0055] In this embodiment, Figure 4 As shown, the Z-axis motion assembly includes a first Z-axis motor 29 and a second Z-axis motor 30 fixed in the machine base 1, and a first Z-axis guide rail 31 and a second Z-axis guide rail 32 fixed on the frame 2; a first Z-axis screw rod 33 is connected to the output shaft of the first Z-axis motor 29, a first Z-axis screw rod nut 34 is arranged on the first Z-axis screw rod 33, a second Z-axis screw rod nut 36 is arranged on the second Z-axis screw rod 35, a crossbeam 37 is connected between the first Z-axis screw rod nut 34 and the second Z-axis screw rod nut 36, a first Z-axis slider 38 connected to the crossbeam 37 is slid on the first Z-axis guide rail 31, and a second Z-axis slider 39 connected to the crossbeam 37 is slid on the second Z-axis guide rail 32.

[0056] During specific implementation, the first Z-axis motor 29 and the second Z-axis motor 30 work simultaneously, driving the first Z-axis screw 33 and the second Z-axis screw 35 to rotate, thereby driving the first Z-axis screw nut 34 to move on the first Z-axis screw 33, and the second Z-axis screw nut 36 to move on the second Z-axis screw 35. The crossbeam 37 is fixedly connected to the first Z-axis screw nut 34 and the second Z-axis screw nut 36, thereby realizing the movement of the crossbeam 37 in the Z-axis direction through the first Z-axis slider 38 and the second Z-axis slider 39.

[0057] In this embodiment, Figure 5 As shown, the X-axis motion assembly includes an X-axis motor 40 and an X-axis guide rail 41 fixed on the crossbeam 37, the output shaft of the X-axis motor 40 is connected to an X-axis screw 42, the X-axis screw 42 is provided with an X-axis screw nut 43, the X-axis screw nut 43 is connected to a nozzle base 44 for fixing a dual nozzle switching assembly, an X-axis slider 45 connected to the nozzle base 44 is slid on the X-axis guide rail 41, and a first X-axis limit switch 46 and a second X-axis limit switch 47 are respectively provided at both ends of the crossbeam 37.

[0058] During specific implementation, the X-axis motor 40 works, driving the X-axis screw 42 to rotate, and then driving the X-axis screw nut 43 to move on the X-axis screw 42. The nozzle base 44 is fixedly connected to the X-axis screw nut 43, and then the nozzle base 44 is moved on the X-axis guide rail 41 through the X-axis slider 45 to achieve movement in the X-axis direction.

[0059] In this embodiment, the dual nozzle switching assembly includes two groups of nozzle control assemblies with the same structure, such as Figure 6 As shown, the nozzle control assembly includes a servo 48 and a slide rail 49 fixed on the nozzle base 44, the servo 48 output shaft is connected to a circular steering disc 50, the circular steering disc 50 is embedded with a cam 51, a nozzle slider 52 slides on the slide rail 49, the nozzle slider 52 is fixed with a material tube rack 53 connected to the cam 51, and a printing material tube 54 is installed in the material tube rack 53.

[0060] In specific implementation, the steering engine 48 works to drive the circular steering disc 50 to rotate, and then drives the cam 51 to rotate. The cam 51 acts on the material tube rack 53, so that the material tube rack 53 slides up and down on the slide rail 49 to realize the rise and fall of the printing material tube 54. The two groups of nozzle control components act separately to realize the nozzle switching of the printing material tube 54. The nozzle of one printing material tube 54 prints the positive electrode slurry on the current collector (aluminum foil), and the nozzle of the other printing material tube 54 directly prints the electrolyte on the positive electrode. The traditional manufacturing of lithium-ion batteries can only be formed separately, and then the positive electrode and the electrolyte are stacked together by thin film lamination. This embodiment does not need a thin film and can be directly formed.

[0061] In this embodiment, Figure 7 and Figure 8 As shown, a plurality of micropores 55 are arranged on the surface of the vacuum adsorption platform 10, square bosses 56 are arranged between the micropores 55, thermal conductive silicone grease is pasted on the upper surface of the square bosses 56, a sealing groove 57 is arranged at the bottom of the vacuum adsorption platform 10, and a cover plate 58 is arranged at the bottom of the sealing groove 57.

[0062] In the specific implementation, in order to ensure that the aluminum foil and other materials on the vacuum adsorption platform 10 have an excellent spreading effect, 625 micropores 55 with a diameter of 1 mm are arranged on the surface of the vacuum adsorption platform 10, which are evenly distributed in a square shape on the surface of the vacuum adsorption platform 10. In order to prevent the small holes from being blocked, 576 square bosses 56 are evenly distributed in the gaps between the micropores 55 at the bottom of the vacuum adsorption platform 10, and thermal conductive silicone grease is pasted on the square bosses 56; a sealing groove 57 is arranged at the bottom, and the sealing of the bottom space is ensured by installing a sealing ring; the cover plate 58 with the air pipe channel is fastened to the bottom of the vacuum adsorption platform 10 with screws, so as to achieve a sealed environment at the bottom. During use, the micropores 55 on the surface of the platform are completely blocked with aluminum foil, and a vacuum pump is used to connect the air pipe interface on the bottom cover plate 58. When the vacuum pump is turned on, the air inside the platform can be sucked out. Under the action of air pressure, the aluminum foil will be close to the vacuum adsorption platform 10, so that the soft current collector such as aluminum foil can be laid flat without wrinkles. In addition, to ensure the adsorption effect, the surface of the vacuum adsorption platform 10 is mirror-polished on the upper surface and oxidized on the surface in its natural color.

[0063] In this embodiment, Figure 1 As shown, the vacuum adsorption platform 10 is provided with a zero point calibration component, and the zero point calibration component includes an X-axis tool-setting optical fiber 59 for measuring the X-axis position of the printing material tube 54, a Y-axis tool-setting optical fiber 60 for measuring the Y-axis position of the printing material tube 54, and a Z-axis tool-setting optical fiber 61 for measuring the Z-axis position of the printing material tube 54.

[0064] In specific implementation, the X-axis tool-setting optical fiber 59 and the Y-axis tool-setting optical fiber 60 are clamped with sheet metal at the upper left corner of the vacuum adsorption platform 10, which are used to calibrate the zero position in the X direction and the Y direction respectively. The optical fiber is connected to the optical fiber amplifier. When the needle of the printing material tube 54 moves to the position of the X-axis tool-setting optical fiber 59, the position signal is read on the optical fiber amplifier, and the X-axis calibration is completed; the Y direction position is calibrated in the same way. The Z-axis tool-setting optical fiber 61 is clamped in front of the vacuum adsorption platform 10. When the needle of the printing material tube 54 moves to the position of the Z-axis tool-setting optical fiber 61, the Z-axis tool-setting optical fiber 61 sends a signal to complete the Z position zero point calibration. Calibration in three directions can ensure the accuracy of the coordinate position of the needle of the printing material tube 54 and ensure printing accuracy.

[0065] In this embodiment, Figure 1As shown, a CR-touch automatic leveling sensor 62 is provided on the nozzle base 44 .

[0066] In specific implementation, in order to ensure smooth movement in the Z-axis direction and printing accuracy in the X-axis direction, a CR-touch automatic leveling sensor 62 is provided on the nozzle base 44 to form a beam tilt calibration system. The CR-touch automatic leveling sensor 62 measures the height difference between the two ends of the beam 37 and the vacuum adsorption platform 10, and after the measured value is fed back to the background for processing, the first Z-axis motor 29 and the second Z-axis motor 30 are automatically adjusted to adjust the height of the left and right sides of the beam 37 until the height of both sides of the beam 37 is consistent. In this way, the horizontality of the beam 37 can be ensured, the movement in the Z-axis direction can be smooth, and the printing accuracy consistency of the device in the X-axis direction can be ensured.

[0067] When the utility model is used, after power is turned on, the zero point calibration component and the CR-touch automatic leveling sensor 62 are first used to calibrate the nozzle position. After the calibration is completed, the nozzle is at the zero point position, and then the collector is spread on the vacuum adsorption platform 10 to start printing. During the printing process, the Y-axis motion component controls the movement of the vacuum adsorption platform 10, and the X-axis motion component and the Z-axis motion component control the movement of the print nozzle, accurately controlling the needle to fall on the collector for printing, and the air pressure control system executes the liquid extrusion until the printing is completed.

[0068] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A dual-nozzle lithium-ion solid-state battery 3D printing device, characterized in that: The invention comprises a machine base (1) and a frame (2) located on the machine base (1); a touch screen (3) is arranged on the front of the machine base (1); a first air pressure regulating knob (4) and a second air pressure regulating knob (5) are arranged on both sides of the touch screen (3); a first extrusion switch (6) and a first pressure gauge (7) are arranged above the first air pressure regulating knob (4); a second extrusion switch (8) and a second pressure gauge (9) are arranged above the second air pressure regulating knob (5); a vacuum adsorption platform (10) for laying a current collector is arranged on the top of the machine base (1); the machine base (1) is provided with an air pressure control system and a Y-axis motion component for driving the vacuum adsorption platform (10) to move; a Z-axis motion component is arranged on the frame (2); the Z-axis motion component is connected to an X-axis motion component; and a double nozzle switching component located above the vacuum adsorption platform (10) is arranged on the X-axis motion component.

2. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 1, characterized in that: A network cable interface (11) and an emergency stop switch (12) are arranged on the side of the machine base (1).

3. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 1, characterized in that: The air pressure control system comprises an air compressor (13) for providing air pressure, the air compressor (13) being connected to a first air pipe (14) and a second air pipe (15), a first solenoid valve (16) and a first pressure regulating valve (17) being arranged in sequence on the first air pipe (14) along the direction of air flow, a second solenoid valve (18) and a second pressure regulating valve (19) being arranged in sequence on the second air pipe (15) along the direction of air flow, the first solenoid valve (16) being controlled by a first extrusion switch (6), the first pressure regulating valve (17) being controlled by a first air pressure regulating knob (4), the first pressure gauge (7) being connected to the first pressure regulating valve (17) and displaying the pressure of the first air pipe (14), the second solenoid valve (18) being controlled by a second extrusion switch (8), the second pressure regulating valve (19) being controlled by a second air pressure regulating knob (5), and the second pressure gauge (9) being connected to the second pressure regulating valve (19) and displaying the pressure of the second air pipe (15).

4. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 1, characterized in that: The Y-axis motion assembly comprises a Y-axis motor (20) and a Y-axis motion base (21) fixed in a machine base (1); a Y-axis screw rod (22) is connected to the output shaft of the Y-axis motor (20); a Y-axis screw rod nut (23) is arranged on the Y-axis screw rod (22); a base plate (24) for fixing a vacuum adsorption platform (10) is connected to the Y-axis screw rod nut (23); a Y-axis guide rail (25) is arranged on the Y-axis motion base (21); a Y-axis slider (26) connected to the base plate (24) slides on the Y-axis guide rail (25); and a first Y-axis limit switch (27) and a second Y-axis limit switch (28) are respectively arranged at two ends of the Y-axis motion base (21).

5. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 1, characterized in that: The Z-axis motion assembly comprises a first Z-axis motor (29) and a second Z-axis motor (30) fixed in the machine base (1), and a first Z-axis guide rail (31) and a second Z-axis guide rail (32) fixed on the machine frame (2); the output shaft of the first Z-axis motor (29) is connected to a first Z-axis screw rod (33), the first Z-axis screw rod (33) is provided with a first Z-axis screw rod nut (34), the output shaft of the second Z-axis motor (30) is connected to a first Z-axis screw rod nut (34) connected to the first Z-axis screw rod (33), and the output shaft of the second Z-axis motor (30) is connected to a first Z-axis screw rod nut (34) connected to the first Z-axis screw rod (33). A second Z-axis screw rod (35) is arranged parallel to the rod (33); a second Z-axis screw rod nut (36) is arranged on the second Z-axis screw rod (35); a crossbeam (37) is connected between the first Z-axis screw rod nut (34) and the second Z-axis screw rod nut (36); a first Z-axis slider (38) connected to the crossbeam (37) slides on the first Z-axis guide rail (31); and a second Z-axis slider (39) connected to the crossbeam (37) slides on the second Z-axis guide rail (32).

6. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 5, characterized in that: The X-axis motion assembly comprises an X-axis motor (40) and an X-axis guide rail (41) fixed on a crossbeam (37); an X-axis screw rod (42) is connected to the output shaft of the X-axis motor (40); an X-axis screw rod nut (43) is arranged on the X-axis screw rod (42); a nozzle base (44) for fixing a double nozzle switching assembly is connected to the X-axis screw rod nut (43); an X-axis slider (45) connected to the nozzle base (44) is slidably arranged on the X-axis guide rail (41); and a first X-axis limit switch (46) and a second X-axis limit switch (47) are respectively arranged at two ends of the crossbeam (37).

7. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 6, characterized in that: The dual-nozzle switching assembly comprises two groups of nozzle control assemblies with the same structure, the nozzle control assembly comprises a steering gear (48) and a slide rail (49) fixed on a nozzle base (44), a circular steering disc (50) is connected to the output shaft of the steering gear (48), a cam (51) is embedded on the circular steering disc (50), a nozzle slider (52) slides on the slide rail (49), a material tube rack (53) connected to the cam (51) is fixed on the nozzle slider (52), and a printing material tube (54) is installed in the material tube rack (53).

8. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 1, characterized in that: The surface of the vacuum adsorption platform (10) is provided with a plurality of micropores (55), square bosses (56) are provided between the micropores (55), the upper surface of the square bosses (56) is pasted with thermal conductive silicone grease, the bottom of the vacuum adsorption platform (10) is provided with a sealing groove (57), and the bottom of the sealing groove (57) is provided with a cover plate (58).

9. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 7, characterized in that: The vacuum adsorption platform (10) is provided with a zero point calibration component, the zero point calibration component comprising an X-axis tool setting optical fiber (59) for measuring the X-axis position of the printing material tube (54), a Y-axis tool setting optical fiber (60) for measuring the Y-axis position of the printing material tube (54), and a Z-axis tool setting optical fiber (61) for measuring the Z-axis position of the printing material tube (54).

10. A dual-nozzle lithium-ion solid-state battery 3D printing device according to claim 6, characterized in that: The nozzle base (44) is provided with a CR-touch automatic leveling sensor (62).

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