Film forming device for solid electrolyte
By introducing a hopper, coating roller and infrared heating tube into the solid electrolyte film forming device, the problem of different coating thicknesses of electrolyte raw materials is solved, and the process flow is shortened, which significantly improves the efficiency and yield of the film forming device.
Patent Information
- Application Number
- CN202421226685.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing solid electrolyte film forming devices are difficult to control the consistency of the thickness of the electrolyte raw materials during the coating process, resulting in a low film yield rate, and additional equipment is required for preheating in the preheating step, resulting in a time-consuming process.
A film forming device for solid electrolytes is designed, including a hopper, a coating roller, an infrared heating tube and a limit strip. The electrolyte raw material is applied to the coating roller through a hopper to form a uniform film, and then transferred to the substrate, and preheated with infrared heating pipes to shorten the process time.
Through this device, the yield of solid electrolyte film formation can be significantly improved, ensuring the consistency of the thickness of the electrolyte film, shortening the process time and improving production efficiency.
Smart Images
Figure CN222551225U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film forming devices, in particular to a film forming device for a solid electrolyte. Background Art
[0002] Solid electrolyte is a solid material that can conduct electricity and is widely used in fields such as solid-state batteries, supercapacitors and solid-state electrochemical sensors. The dry film forming process is a commonly used method for forming a uniform and dense electrolyte film on the solid electrolyte, and this method requires a film forming device to implement.
[0003] However, when using the existing solid electrolyte film-forming device, the solid electrolyte raw material is usually applied directly to the surface of the substrate, and then the electrolyte raw material is scraped flat with the help of a scraper or other structures on the device, so that the electrolyte raw material is applied to the substrate. This method requires precise control of the discharge of the applied raw material, otherwise it is easy to cause the electrolyte raw material to have different thicknesses during application, resulting in a low yield rate of the solid electrolyte film after application. In addition, in the process flow of solid electrolyte film formation, in order to accelerate the rapid coagulation and drying of the paste-like electrolyte raw material, a sintering step is usually required, and preheating is usually required before sintering. The existing film-forming device does not perform preheating after completing the application of the electrolyte raw material, so that the electrolyte raw material has to be transferred to other equipment for preheating after application, resulting in a relatively time-consuming electrolyte film-forming process. Utility Model Content
[0004] The purpose of the utility model is to provide a solid electrolyte film forming device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solid electrolyte film-forming device, comprising a belt, two vertical frames are set up on one side of the top of the belt, wherein the top of one of the vertical frames is fixedly connected to a hopper, the bottom end of the hopper is provided with a discharge port, the bottom end of the discharge port is fixedly connected to a sealing ring, the bottom end of the sealing ring is fixedly connected to a scraper, a coating roller is set up on the top of the other vertical frame, a plurality of rollers are installed inside the belt, a third motor is fixedly installed on the axial end of one of the rollers, a plurality of limit strips are fixedly connected to the surface of the belt, a substrate is movably embedded in one side wall of the limit strip, a cover box is set up on the other side of the top of the belt, and an infrared heating tube is fixedly installed on the top of the inner side of the cover box.
[0006] Preferably, both side walls of the hopper are fixedly connected with cross bars, the cross bars are fixedly connected with one of the vertical frames, and the interior of the cross bars is rotatably connected with a rotating rod.
[0007] Preferably, a stirring rod is fixedly connected to the middle of the rotating rod, a first motor is fixedly mounted on one side wall of one of the vertical frames, and an output end of the first motor is snap-connected to the rotating rod.
[0008] Preferably, a rotating shaft passes through the middle of the coating roller, and a second motor is fixedly mounted on a side wall of another vertical frame, and an output end of the second motor is snap-connected with one end of the rotating shaft.
[0009] Preferably, the coating roller is rotatably connected to the other vertical frame via a rotating shaft, and the coating roller is movably connected to the substrate via the other vertical frame.
[0010] Preferably, the hopper is movably connected to the top of the coating roller via one of the vertical frames, and the sealing ring and the scraper are movably connected to the coating roller via the hopper.
[0011] Preferably, both side walls of the cover box are provided with openings, and the substrate is movably connected to the cover box through the openings.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The film-forming device of the solid electrolyte, through the hopper, coating roller, opening, discharge port and scraper, enables the raw material of the solid electrolyte to fit the bottom of the hopper to the opening of the coating roller, and first applies the raw material to the surface of the coating roller to form a layer of uniform material film, and then transfers it to the surface of the substrate through the coating roller, thereby reducing the probability of uneven thickness of the solid electrolyte raw material during coating and improving the yield rate of the film after the solid electrolyte coating.
[0014] 2. The film-forming device of the solid electrolyte uses a cover box, an infrared heating tube, a belt and a limit strip so that after the solid electrolyte raw material is coated, it can be conveyed to the inside of the cover box along the belt for a preheating step, so that the coating and preheating processes in the solid electrolyte film-forming process can be carried out in a connected manner, reducing the time spent by the solid electrolyte waiting for transfer, thereby saving the time required for solid electrolyte film formation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the coating roller and cover box structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the hopper and stirring rod structure of the utility model;
[0018] Figure 4 This is a schematic diagram of the discharge port and scraper structure of the utility model.
[0019] In the figure: 1. belt; 2. vertical frame; 3. first motor; 4. horizontal bar; 5. hopper; 6. coating roller; 7. rotating shaft; 8. second motor; 9. substrate; 10. limit strip; 11. cover box; 12. infrared heating tube; 13. opening; 14. rotating rod; 15. stirring rod; 16. third motor; 17. rotating roller; 18. discharge port; 19. sealing ring; 20. scraper. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] like Figures 1 to 4As shown, the film-forming device of the solid electrolyte in this embodiment comprises a belt 1, two vertical frames 2 are set on one side of the top of the belt 1, the top of one of the vertical frames 2 is fixedly connected with a hopper 5, the bottom end of the hopper 5 is provided with a discharge port 18, the bottom end of the discharge port 18 is fixedly connected with a sealing ring 19, the bottom end of the sealing ring 19 is fixedly connected with a scraper 20, a coating roller 6 is set on the top of the other vertical frame 2, a plurality of rotating rollers 17 are installed inside the belt 1, a third motor 16 is fixedly installed on the axial end of one of the rotating rollers 17, a plurality of limiting strips 10 are fixedly connected to the surface of the belt 1, a substrate 9 is movably embedded in one side wall of the limiting strip 10, a cover box 11 is set on the other side of the top of the belt 1, and an infrared heating tube 12 is fixedly installed on the top of the inner side of the cover box 11.
[0024] Specifically, the vertical frame 2 supports and limits the hopper 5 and the coating roller 6, so that the discharge port 18 at the bottom of the hopper 5 can maintain connection with the surface of the coating roller 6, so that the solid electrolyte raw material after stirring in the hopper 5 can be pre-smeared on the surface of the coating roller 6, and the top of the hopper 5 is in an unclosed state, which is conducive to replenishing the mixed solid electrolyte raw material into the hopper 5. The cross-section of the discharge port 18 is an arc shape, which fits the arc shape of the surface of the coating roller 6, so that the solid electrolyte raw material is smeared on the surface of the coating roller 6 through the discharge port 18. The sealing ring 19 can fill the gap between the discharge port 18 and the coating roller 6 to reduce the probability of the solid electrolyte raw material seeping out of the gap. A plurality of rotating rollers 17 are distributed below the coating roller 6 to make the coating When the coating roller 6 transfers the raw material to the substrate 9, the substrate 9 can be pressed against the surface of the coating roller 6, so that the coating roller 6 can transfer the solid electrolyte raw material to the surface of the substrate 9 to form a thin film, so that a solid electrolyte film of uniform thickness can be formed on the surface of the substrate 9. The length of the limiting strip 10 is the same as the length of the substrate 9. Its function is to enable the substrate 9 to be transferred to different positions of the device as the belt 1 rotates, which can improve the operation efficiency of the device. At the same time, when the substrate 9 is transferred with the electrolyte raw material by the coating roller 6, the substrate 9 can be clamped and limited, thereby increasing the stability of the substrate 9 during transfer. The function of the cover box 11 is to gather the heat generated by the infrared heating tube 12, so that the substrate 9 can enter a relatively closed environment for preheating after the film raw material coating is completed.
[0025] Furthermore, both side walls of the hopper 5 are fixedly connected with a cross bar 4, which is fixedly connected to one of the vertical frames 2. The inside of the cross bar 4 is rotatably connected with a rotating rod 14, and the function of the rotating rod 14 is to drive the stirring rod 15 to rotate in the hopper 5, so that the solid electrolyte membrane raw material in the hopper 5 can remain in a paste state.
[0026] Furthermore, a stirring rod 15 is fixedly connected to the middle of the rotating rod 14, and a first motor 3 is fixedly installed on one side wall of one vertical frame 2. The output end of the first motor 3 is engaged with the rotating rod 14. When the first motor 3 is energized, it can drive the rotating rod 14 to rotate, thereby realizing the stirring of the film raw materials in the hopper 5 by the stirring rod 15.
[0027] Furthermore, a rotating shaft 7 passes through the middle of the coating roller 6, and a second motor 8 is fixedly installed on a side wall of the other vertical frame 2. The output end of the second motor 8 is engaged with one end of the rotating shaft 7. When the second motor 8 is energized, it drives the rotating shaft 7 to rotate, thereby realizing the rotation of the coating roller 6 to fit the discharge port 18 at the bottom of the hopper 5, so that the film raw material sliding out of the discharge port 18 can be pre-coated on the surface of the coating roller 6.
[0028] Furthermore, the coating roller 6 is rotatably connected to another vertical frame 2 via a rotating shaft 7, and the coating roller 6 is movably connected to the substrate 9 via another vertical frame 2, so that the electrolyte membrane raw material coated on the surface of the coating roller 6 can be smoothly transferred to the surface of the substrate 9, thereby facilitating maintaining the consistency of the thickness of the membrane raw material on the surface of the substrate 9.
[0029] Furthermore, the hopper 5 is movably connected to the top of the coating roller 6 through one of the vertical frames 2, and the sealing ring 19 and the scraper 20 are movably connected to the coating roller 6 through the hopper 5. The scraper 20 can scrape the film material on the surface of the coating roller 6 flat, so that the thickness of the film material on the surface of the coating roller 6 remains consistent.
[0030] Furthermore, openings 13 are provided on both side walls of the cover box 11, and the substrate 9 is movably connected to the cover box 11 through the openings 13. After being conveyed by the belt 1, the substrate 9 enters the cover box 11 through the openings 13 for preheating, and after preheating is completed, it slides out of the cover box 11 through the opening 13 on the other side, thereby realizing the preheating of the solid electrolyte membrane raw material after coating.
[0031] The method of using this embodiment is as follows: when using the film-forming device of the solid electrolyte, it is necessary to first connect the device to an external power supply, and then start the first motor 3, the second motor 8, the third motor 16 and the infrared heating tube 12, so that the belt 1 starts to rotate, and at the same time the shaft 7 drives the coating roller 6 to rotate, the rotating rod 14 drives the stirring rod 15 to rotate in the hopper 5, and then pour the mixed solid electrolyte raw material into the hopper 5, so that the solid electrolyte membrane raw material remains in a paste state under the stirring of the stirring rod 15, and then the membrane raw material slides to the discharge port 18 and is evenly smeared under the action of the scraper 20. On the surface of the rotating coating roller 6, the substrate 9 is placed between the limiting strips 10 adjacent to the surface of the belt 1, so that the substrate 9 is conveyed to the bottom of the coating roller 6 as the belt 1 rotates. When the substrate 9 contacts the bottom of the coating roller 6, the solid electrolyte membrane raw material coated on the surface of the coating roller 6 will be transferred to the surface of the substrate 9 to complete the coating action. Then, the coated substrate 9 will be conveyed to the opening 13 of the cover box 11 along the belt 1, and then enter the cover box 11 through the opening 13 to perform a preheating step. Finally, the preheated substrate 9 will slide out of the opening 13 on the other side of the cover box 11 along the belt 1.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A solid electrolyte film forming device, comprising a belt (1), characterized in that: Two vertical frames (2) are arranged on one side of the top of the belt (1), wherein the top of one of the vertical frames (2) is fixedly connected to a hopper (5), the bottom of the hopper (5) is provided with a discharge port (18), the bottom of the discharge port (18) is fixedly connected to a sealing ring (19), the bottom of the sealing ring (19) is fixedly connected to a scraper (20), a coating roller (6) is arranged on the top of the other vertical frame (2), a plurality of rotating rollers (17) are installed inside the belt (1), a third motor (16) is fixedly installed on the axial end of one of the rotating rollers (17), a plurality of limiting strips (10) are fixedly connected to the surface of the belt (1), a substrate (9) is movably embedded in one side wall of the limiting strip (10), a cover box (11) is arranged on the other side of the top of the belt (1), an infrared heating tube (12) is fixedly installed on the top of the inner side of the cover box (11).
2. A solid electrolyte film forming device according to claim 1, characterized in that: Both side walls of the hopper (5) are fixedly connected with cross bars (4), the cross bars (4) are fixedly connected with one of the vertical frames (2), and the interior of the cross bars (4) is rotatably connected with a rotating rod (14).
3. A solid electrolyte film forming device according to claim 2, characterized in that: A stirring rod (15) is fixedly connected to the middle of the rotating rod (14), and a first motor (3) is fixedly installed on one side wall of one of the vertical frames (2), and an output end of the first motor (3) is snap-connected to the rotating rod (14).
4. A solid electrolyte film forming device according to claim 1, characterized in that: A rotating shaft (7) passes through the middle of the coating roller (6), and a second motor (8) is fixedly mounted on a side wall of the other vertical frame (2), and an output end of the second motor (8) is snap-connected with one end of the rotating shaft (7).
5. A solid electrolyte film forming device according to claim 4, characterized in that: The coating roller (6) is rotatably connected to the other vertical frame (2) via a rotating shaft (7), and the coating roller (6) is movably connected to the substrate (9) via the other vertical frame (2).
6. A solid electrolyte film forming device according to claim 1, characterized in that: The hopper (5) is movably connected to the top of the coating roller (6) through one of the vertical frames (2), and the sealing ring (19) and the scraper (20) are movably connected to the coating roller (6) through the hopper (5).
7. A solid electrolyte film forming device according to claim 1, characterized in that: Both side walls of the cover box (11) are provided with openings (13), and the base material (9) is movably connected to the cover box (11) through the openings (13).