Dry-method electrode continuous production line
By using spinning mechanisms to form nanowires and vibrating screens in the dry electrode production line, the problem of material structure damage in the high-speed shearing process of adhesive is solved, and efficient, uniform mixing and continuous production of electrodes are achieved.
Patent Information
- Application Number
- CN202420829444.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-22
AI Technical Summary
During the high-speed shearing and mixing process of existing dry electrode production lines, the adhesive is prone to destroy its material structure due to the rapid shearing speed, or the fibrillated material is not fully formed due to the slow speed, resulting in limited production.
Nanowires are formed by using a spinning mechanism, and active materials and conductive agents are spread through vibrating screens, and mixed in the mixing area to avoid high-speed shearing. The spinning mechanism is suitable for a variety of adhesives, improving the universality of the production line and the possibility of mass production.
Through the combination of spinning and vibrating screen, the uniform distribution of adhesives and the full mixing of active substances and conductive agents are achieved, the continuity and mixing uniformity of the electrodes are improved, and the efficiency and quality of dry electrode production are improved.
Smart Images
Figure CN222562693U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of dry electrode production, and specifically relates to a continuous production line for dry electrodes. Background Art
[0002] Electrodes are an important component of batteries and can provide a place for electrochemical reactions. Electrode preparation methods generally include wet and dry methods. Among them, the dry electrode preparation method refers to the use of high-speed shear principle to fibrillate active substances, conductive agents and adhesives to form a self-supporting film, and then the active substances, conductive agents and adhesives are mixed evenly and rolled with the current collector to prepare electrodes. At present, the dry electrode preparation process can be used to produce and process electrodes through dry electrode production lines.
[0003] The existing dry electrode production line mainly includes a mixing mechanism, which includes a mixing barrel. A stirring member is arranged in the mixing barrel. The stirring rod is connected to a driving member for driving the stirring rod to rotate. During the preparation of the dry electrode, the active material, the conductive agent and the adhesive are placed in the mixing barrel. The driving member can drive the stirring member through high-speed shear force to shear, disperse and break the conductive agent agglomerates, and the adhesive undergoes a high-speed shear fibrillation process to form a fibrillated material.
[0004] However, during the high-speed shearing and mixing process of the mixing mechanism, the adhesive is easily destroyed due to the excessively fast shear speed, or the fibrillated material is not fully formed due to the too slow speed. Different adhesives have different critical fibrillation shear speeds, and it is often necessary to set multiple sets of shear speeds for experimental estimation. At present, the preparation of dry electrodes usually requires the selection of specific adhesives to adapt to the high-speed shearing process of the mixing mechanism, which leads to limitations in the production of existing dry electrode production lines. Utility Model Content
[0005] In order to solve the shortcomings of the prior art, the utility model provides a continuous production line for dry electrodes, in which an adhesive spinning solution is formed into nanowires through a spinning mechanism, and a feeding mechanism vibrates and spreads a mixture of active materials and conductive agents. The nanowires, active materials and conductive agents are mixed in a mixing zone, and the adhesive, active materials and conductive agents are not mixed by high-speed shearing. At this time, the spinning mechanism is suitable for a variety of adhesives, which is conducive to improving the universality and mass production possibility of the continuous production line for dry electrodes.
[0006] The technical effects to be achieved by the utility model are achieved through the following technical aspects:
[0007] The utility model discloses a dry electrode continuous production line, comprising:
[0008] A conveying mechanism, used for conveying the current collector along a first direction, wherein the conveying structure forms a mixing zone on one side of the current collector;
[0009] A spinning mechanism is arranged at one side of the conveying mechanism, the spinning mechanism comprises a plurality of spinning needles, the spinnerets of the spinning needles are arranged corresponding to the mixing zone, and the spinning needles are connected to an injection assembly for injecting an adhesive spinning solution;
[0010] A high-voltage receiving plate is provided on one side of the spinning needle head, and the current collector is transmitted between the spinning needle head and the high-voltage receiving plate, and a high-voltage electrostatic field is formed between the spinning needle head and the high-voltage receiving plate; a feeding mechanism is provided on one side of the transmission mechanism, and the feeding mechanism includes a vibrating screen, and the vibrating screen spreads active materials and conductive agents in the mixing area, and the vibrating screen is transmission-connected to a vibration-generating part; and a rolling mechanism is provided at the end of the transmission mechanism along the transmission direction of the current collector.
[0011] In some embodiments, the spinning mechanism comprises:
[0012] A high-voltage generating assembly includes a high-voltage clamp, on which a plurality of spinning needles are arranged, and the high-voltage clamp is connected to a high-voltage generator via electric wires; and a high-voltage receiving assembly includes a high-voltage receiving plate, which is arranged on a side of the current collector away from the mixing zone, and the high-voltage electrostatic field exists between the high-voltage clamp and the high-voltage receiving plate.
[0013] In some embodiments, an insulating base is disposed on one side of the high voltage receiving board.
[0014] In some embodiments, an insulating bracket is provided on the high-voltage clamp, wherein the insulating bracket includes: an insulating plate connected to the high-voltage clamp; a rotating rod rotatably connected to the insulating plate; and a fixed seat rotatably connected to the rotating rod, wherein self-locking is achieved between the rotating rod and the insulating plate, and between the rotating rod and the fixed seat through friction.
[0015] In some embodiments, the rotating rod includes a first rod body and a second rod body, the first rod body is rotatably connected to the second rod body and self-locking is achieved through friction; the first rod body is rotatably connected to the insulating plate, and the second rod body is rotatably connected to the fixing seat.
[0016] In some embodiments, the injection assembly includes: a hose connected to the spinning needle; an injection syringe connected to the hose; and a propulsion device connected to the injection syringe.
[0017] In some embodiments, the feeding mechanism further comprises a conveyor belt for conveying active materials and conductive agents to the mixing zone, and the conveyor belt is located between the discharge port of the vibrating screen and the current collector.
[0018] In some embodiments, a reciprocating motion component for adjusting the spinning range of the spinning mechanism is disposed on one side of the spinning mechanism, and the reciprocating motion drives the spinning mechanism to move in a second reciprocating motion.
[0019] In some embodiments, the vibration generating element includes: an ultrasonic receiving rod disposed on the vibration screen; and an ultrasonic generator connected to the ultrasonic receiving rod.
[0020] In some embodiments, the conveying mechanism includes an unwinding roller and a winding roller sequentially arranged along the conveying direction of the current collector.
[0021] In summary, the utility model has at least the following benefits:
[0022] The utility model provides a dry electrode continuous production line, in which the current collector is transported along the first direction by a transport mechanism. When the current collector is transported, the injection assembly injects the adhesive spinning solution into the spinning needle, and the spinneret of the spinning needle forms uniformly distributed nanowires in the mixing zone on the current collector through the action of a high-voltage electrostatic field. At the same time, the feeding mechanism vibrates and spreads the pre-mixed active material and conductive agent in the vibrating screen into the mixing zone through an oscillating screen. At this time, the active material and the conductive agent are fully mixed with the nanowires during the spreading process, and the active material, the conductive agent and the nanowires finally form a continuous and well-mixed mixed material on the surface of the current collector.
[0023] Compared with the traditional high-speed shear mixing process, the spinning mechanism can be applied to a variety of adhesives, which is conducive to improving the universality of the continuous production line of dry electrodes. The adhesive forms nanowires under the action of the electric field, which can improve the material damage and insufficient fibrillation caused by high-speed shear. The active material and the conductive agent are vibrated and spread through a vibrating screen and then mixed with the nanowires to ensure the continuity of production and the uniformity of mixing of nanowires, active materials and conductive agents. The current collector, nanowires, active materials and conductive agents are rolled by a rolling mechanism to form an electrode with a certain thickness. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of a dry electrode continuous production line according to a specific embodiment of the utility model.
[0025] Figure 2 It is a schematic diagram of the partial structure of a dry electrode continuous production line according to a specific embodiment of the utility model.
[0026] Figure 3 It is a partial side view of a dry electrode continuous production line according to a specific embodiment of the utility model.
[0027] Figure 4It is a structural schematic diagram of a high-voltage receiving assembly according to a specific embodiment of the utility model.
[0028] Figure 5 It is a structural schematic diagram of a feeding mechanism of a specific embodiment of the utility model.
[0029] Figure 6 It is a structural schematic diagram of a high-voltage clamp according to a specific embodiment of the utility model.
[0030] Markings in the figure:
[0031] 1. Conveying mechanism; 11. Unwinding roller; 12. Winding roller; 13. Passing roller;
[0032] 2. Spinning mechanism; 21. Spinning needle; 22. Injection assembly; 221. Hose; 222. Injection syringe; 223. Propulsion device; 23. High voltage generating assembly; 231. High voltage clamp; 232. High voltage generator; 233. Wire; 234. Insulating bracket; 2341. Insulating plate; 2342. First rotating rod; 2343. Second rotating rod; 2344. Fixed seat; 24. High voltage receiving plate; 241. Insulating base; 242. Grounding column;
[0033] 3. Feeding mechanism; 31. Vibrating screen; 32. Vibrating element; 321. Ultrasonic receiving rod; 322. Ultrasonic generator; 33- conveyor belt;
[0034] 4. Roller pressing mechanism;
[0035] 5. Reciprocating components;
[0036] 6. Current collector; 61. Mixing zone. DETAILED DESCRIPTION
[0037] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.
[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.
[0039] Embodiment 1:
[0040] Please refer to the attached Figure 1The utility model provides a dry electrode continuous production line, comprising a conveying mechanism 1, a spinning structure 2, a feeding structure 3 and a rolling mechanism 4. In some specific embodiments, the conveying mechanism 1 comprises an unwinding roller 11 and a winding roller 12, and the unwinding roller 11 and the winding roller 12 are sequentially arranged along a first direction, wherein the first direction is Figure 1 The X-axis direction is shown. During the transmission process of the transmission mechanism 1, the unwinding roller 11 unwinds the current collector 6, and the winding roller 12 winds the electrode sheet. The current collector 6 is transported along the first direction and the dry electrode is prepared. The unwinding roller 11 and the winding roller 12 cooperate to move, and the current collector 6 is automatically retracted and released through appropriate tension control and deviation correction control to ensure the continuity and stability of production. The way in which the transmission mechanism 1 performs tension control and deviation correction control is known to those skilled in the art and is achievable, and is not described in detail in this embodiment. Furthermore, a roller 13 is provided between the unwinding roller 11 and the winding roller 12. After the current collector 6 is unwound from the unwinding roller 11, it is transmitted to the winding roller 12 through the roller 13. The roller 13 can ensure the stability of the current collector 6 during the transmission process. The transmission mechanism 1 forms a mixing zone 61 on the surface of the current collector 6, and the mixing zone 61 is located on the side of the current collector 6 away from the roller 13.
[0041] The spinning mechanism 2 includes a plurality of spinning needles 21, which are specifically metal needles, so that a high voltage can be formed at the spinning needles 21. In some specific embodiments, the plurality of spinning needles 21 are arranged in rows and spaced apart, and the spinnerets of the spinning needles 21 are arranged corresponding to the mixing zone 61, so that the spinning needles 21 can spray the nanofilaments into the mixing zone 61. The spinning needles 21 are connected to an injection assembly 22 for injecting an adhesive spinning solution, and the injection assembly 22 injects the adhesive spinning solution into the spinning needles 21, wherein the adhesive spinning solution is preferably, but not limited to, a mixture of a solvent and an adhesive, wherein the solvent dissolves the adhesive, such as a mixture of polytetrafluoroethylene and dimethylformamide.
[0042] A high-voltage receiving plate 24 is provided on one side of the spinning needle 21. The high-voltage receiving plate 24 is located on the side of the collector 6 away from the mixing zone 61. A high-voltage electrostatic field is formed between the high-voltage receiving plate 24 and the spinning needle 21 so that the mixture of the binder, active material and conductive agent falls evenly on the collector.
[0043] A feeding mechanism 3 is provided on one side of the spinning mechanism 2 along the first direction. The feeding mechanism 3 includes a vibrating screen 31. The vibrating screen 31 is provided in the mixing zone 61. Specifically, the vibrating screen 31 is a rectangular box with a screen. The screen of the vibrating screen 31 is provided corresponding to the surface of the current collector 6, so that when the vibrating screen 31 vibrates, the pre-mixed active material and conductive agent can be spread into the mixing zone 61 and mixed with the nanowires. The vibrating screen 31 can effectively solve the problem of easy clogging of ultrafine powder. In some specific embodiments, the vibrating screen 31 can select specifications according to the particle size of the active material and the conductive agent to improve the continuity and uniformity of the feeding mechanism 3. The vibrating screen 31 is transmission-connected to a vibration generating component 32, and the vibration generating component 32 drives the vibrating screen 31 to vibrate at a certain frequency.
[0044] A rolling mechanism 4 is provided between the winding roller 12 and the passing roller 13. Specifically, the rolling mechanism 4 includes a rolling machine, which can roll the current collector 6, active material, conductive agent and binder nanowires to perform calendering and sheeting. When the rolling machine is a hot roller, the rolling machine can appropriately melt the binder nanowires during rolling to improve the adhesion of the binder. It can be understood that this is not a specific limitation on the rolling machine, and technicians in related fields can replace it on this basis. The rolling mechanism 4 cooperates with the feeding mechanism 3 and the spinning mechanism 2, and there is no need to manually fill the rolling machine, which is conducive to improving the continuity of electrode production.
[0045] During the dry electrode production process, the current collector 6 is transported by the conveying mechanism 1, and the injection component 22 continuously injects the adhesive spinning solution into the spinning needle 21. There is a high-voltage electrostatic field between the spinning needle 21 and the current collector 6. Under the action of the electric field, the adhesive spinning solution forms a conical droplet, namely a Taylor cone, at the spinneret of the spinning needle 21. As the voltage gradually increases, the charge repulsion is greater than the surface tension of the adhesive spinning solution, and a jet is generated at the tip of the conical droplet. Because the surface of the jet carries a large amount of charge, the jet is continuously stretched under the action of the electric field force and is finally collected in the mixing area 61 on the current collector 6. During this process, the solvent in the adhesive spinning solution continuously evaporates, and the adhesive spinning solution forms evenly distributed nanowires through the spinning needle 21. At the same time, the active material and the conductive agent are pre-mixed and added to the vibrating screen 31. The vibrating screen 31 vibrates, and the active material and the conductive agent are evenly mixed with the nanowires in the mixing zone 61 during the shaking process. As the conveying mechanism 1 conveys the current collector 6, a continuous, well-mixed mixed material of the binder nanowires, active material and conductive agent is formed on the surface of the current collector 6.
[0046] The adhesive spinning solution is used to prepare nanowires through the spinning mechanism 2. The spinning mechanism 2 does not need to use an adhesive with a specific viscosity, melting point and decomposition temperature, and can be applicable to a variety of adhesives. The active substance and the conductive agent are mixed with the nanowires during the sprinkling process, and are rolled with the current collector 6 through the rolling mechanism 13 to prepare the electrode. The surface of the current collector 6 can adjust the spreading thickness of the active substance and the conductive agent as needed, which is conducive to improving the problem of limitations in the production of thick electrodes in the existing dry electrode production line.
[0047] Embodiment 2:
[0048] The difference between this embodiment and embodiment 1 is that the spinning mechanism 2 and the feeding mechanism 3 of the utility model are structurally optimized in this embodiment, see Figure 2 to Figure 4 .
[0049] See also Figure 2 In this embodiment, a plurality of spinning needles 21 are arranged in rows and spaced apart. It can be understood that there is no specific limitation on the arrangement and quantity of the spinning needles 21. Technicians in related fields can make replacements on this basis, such as distributing a plurality of spinning needles 21 in an array, or arranging in various forms such as no needles.
[0050] In a preferred embodiment, the injection assembly 22 includes a hose 221, which is connected to the spinning needle 21, and the end of the hose 221 away from the spinning needle 21 is connected to the injection syringe 222, and the end of the injection syringe 222 away from the hose 221 is connected to the propulsion device 223. Specifically, the propulsion device 223 is preferably but not limited to a syringe pump, and the propulsion device 223 injects the adhesive spinning solution into the spinning needle 21 through the injection syringe 222 and the hose 221. During the spinning process of the spinning needle 21, the propulsion device 223 can set different propulsion speeds to make the spinning needle 21 form different filament outputs, so as to achieve full mixing of the active substance, the conductive agent and the adhesive nanofilaments and improve the mixing effect.
[0051] Specifically, a plurality of spinning mechanisms 2 are provided, and the plurality of spinning mechanisms 2 are arranged along the first direction and the Y-axis direction, respectively. Accordingly, a plurality of mixing zones 61 are formed on the current collector 6, so that the mixed material of the nanowires, the active material and the conductive agent can be mixed in an amount that can be adjusted according to demand. It can be understood that this is not a specific limitation on the number of spinning mechanisms 2, and technicians in the relevant field can make replacements on this basis.
[0052] In a preferred embodiment, the spinning mechanism 2 includes a high voltage generating assembly 23, and the high voltage generating assembly 23 includes a high voltage clamp 231. Specifically, the high voltage clamp 231 is a frame-shaped metal plate, and the spinning needle 21 is inserted into one side of the high voltage clamp 231. A wire 233 is connected to the high voltage clamp 231, and one end of the wire 233 away from the high voltage clamp 231 is electrically connected to a high voltage generator 232. After the high voltage generator 232 generates a positive voltage, it is applied to the spinning needle 21 through the wire 233 and the high voltage clamp 231.
[0053] A high voltage receiving assembly 24 is provided on the side of the current collector 6 away from the mixing zone 61. The high voltage receiving assembly 24 includes a high voltage receiving plate 24. Specifically, the high voltage receiving plate 24 is a horizontally placed metal plate and is arranged parallel to the current collector 6. The high voltage receiving plate 24 is preferably, but not limited to, an aluminum plate. In some specific embodiments shown, a grounding column 242 is provided on the high voltage receiving plate 24. A high voltage electrostatic field exists between the high voltage receiving plate 24 and the spinning needle 21. In other specific embodiments, the high voltage receiving plate 24 may be connected to a high negative pressure generator. At this time, a high positive pressure is formed on the spinning needle 21, and there is a potential difference between the high voltage receiving plate 24 and the spinning needle 21. An insulating base 241 is provided at the bottom of the high voltage receiving plate. Specifically, the insulating base 241 is preferably, but not limited to, a Teflon base. The high voltage receiving plate 24 is supported on the ground by the insulating base 241.
[0054] In a preferred embodiment, the vibration generating member 32 includes an ultrasonic receiving rod 321, which is installed on the outer wall of the vibrating screen 31. Specifically, a plurality of ultrasonic receiving rods 321 are provided. An ultrasonic generator 322 is provided on one side of the vibrating screen 31, and the ultrasonic generator 322 is connected to a plurality of ultrasonic receiving rods 321. The plurality of ultrasonic receiving rods 321 simultaneously and uniformly conduct ultrasonic waves to the vibrating screen 31, and the vibrating screen 31 can spread the active material and the conductive agent into the mixing area 61 according to a certain ultrasonic frequency.
[0055] Furthermore, a conveyor belt 33 for conveying active materials and conductive agents is provided on one side of the vibrating screen 31 close to the current collector 6. Specifically, the conveying direction of the conveyor belt 33 is opposite to the conveying direction of the current collector 6. The vibrating screen 31 is located at the beginning of the conveying direction of the conveyor belt 33. During the dry electrode preparation process, the ultrasonic generator 322 cooperates with the ultrasonic receiving rod 321 to drive the vibrating screen 31 to vibrate. The vibrating screen 31 shakes the active materials and conductive agents onto the conveyor belt 33. The conveyor belt 33 conveys the active materials and conductive agents to the mixing zone 61. Subsequently, the active materials and conductive agents fall from the end of the conveyor belt 33 and are uniformly mixed with the nanowires. The arrangement of the conveyor belt 33 enables the active materials and conductive agents to be mixed with the nanowires at a certain speed and spread on the surface of the current collector 6.
[0056] Embodiment 3:
[0057] The difference between this embodiment and the above-mentioned embodiment is that the spinning mechanism 2 of the utility model is structurally optimized in this embodiment to improve the flexibility of the spinning mechanism 2. Figure 2 .
[0058] An insulating bracket 234 is provided on the side of the high-voltage clamp 231 away from the spinning needle head 21, and the insulating bracket 234 includes an insulating plate 2341. Specifically, the insulating plate 2341 is preferably but not limited to a Teflon plate, and the insulating plate 2341 is connected to the high-voltage clamp 231. The insulating plate 2341 is rotatably connected to a rotating rod on the side away from the high-voltage clamp 231. In a preferred embodiment, the rotating rod includes a first rotating rod 2342 and a second rotating rod 2343. The first rotating rod 2342 is rotatably connected to the insulating plate 2341, and the first rotating rod 2342 is rotatably connected to the second rotating rod 2343. The second rotating rod 2343 is rotatably connected to a fixed seat 2344 at one end away from the first rotating rod 2342. As shown in some specific embodiments, the fixed seat 2344 is arranged on the propulsion device 223. Self-locking is achieved between the first rotating rod 2342 and the insulating plate 2341 , between the first rotating rod 2342 and the second rotating rod 2343 , and between the second rotating rod 2343 and the fixing seat 2344 through friction force.
[0059] The insulating plate 2341 can adjust the angle between the insulating plate 2341 and the current collector 6 by rotating the first rotating rod 2342 and the second rotating rod 2343, and then adjust the spinning needle 21 to form a suitable angle between the spinning needle 21 and the high-voltage receiving plate 24. The insulating bracket 234 can ensure that the active substance and the conductive agent are fully mixed with the nanowires in the process of falling toward the current collector 6 by adjusting the angle of the spinning needle 21.
[0060] In a preferred embodiment, a reciprocating assembly 5 is provided between the injection assembly 22 and the current collector 6 to drive the injection assembly 22 to move along the second direction. Specifically, the reciprocating assembly 5 includes a track and a guide block, the track is slidably connected to the guide block, the guide block is installed on the side of the propulsion device 223 close to the current collector 6, and the guide block is transmission-connected to a driving member.
[0061] The driving member drives the guide block to slide along the track, thereby realizing the position adjustment of the injection assembly 22 along the second direction. The second direction is as follows: Figure 1 The Z-axis direction is shown to expand the spinning range of the spinning needle 21, and the spinning needle 21 can evenly spin in the width direction of the current collector 6. The driving member is preferably but not limited to a cylinder to drive the injection assembly 22 to move stably.
[0062] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0063] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0064] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0065] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0066] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.
Claims
1. A dry electrode continuous production line, characterized in that: include: A conveying mechanism (1) for conveying a current collector (6) along a first direction, wherein the conveying structure is provided with a mixing zone (61) on one side of the current collector (6); A spinning mechanism (2) is arranged on one side of the conveying mechanism (1), the spinning mechanism (2) comprises a plurality of spinning needles (21), the spinnerets of the spinning needles (21) are arranged corresponding to the mixing zone (61), and the spinning needles (21) are connected to an injection assembly (22) for injecting an adhesive spinning solution; A high-voltage receiving plate (24) is provided on one side of the spinning needle (21), and the current collector (6) is transmitted between the spinning needle (21) and the high-voltage receiving plate (24), so that a high-voltage electrostatic field is formed between the spinning needle (21) and the high-voltage receiving plate (24); a feeding mechanism (3) disposed on one side of the conveying mechanism (1), the feeding mechanism (3) comprising a vibrating screen (31), the vibrating screen (31) spreading active materials and conductive agents in the mixing zone (61), the vibrating screen (31) being drivingly connected to a vibration generating member (32); and A rolling mechanism (4) is arranged at the end of the conveying mechanism (1) along the conveying direction of the current collector (6).
2. The dry electrode continuous production line according to claim 1, characterized in that: The spinning mechanism (2) comprises a high-voltage generating assembly (23), the high-voltage generating assembly (23) comprises a high-voltage clamp (231), a plurality of spinning needles (21) are arranged on the high-voltage clamp (231), and the high-voltage clamp (231) is connected to a high-voltage generator (232) via an electric wire.
3. The dry electrode continuous production line according to claim 2, characterized in that: An insulating base (241) is provided on one side of the high voltage receiving board (24).
4. The dry electrode continuous production line according to claim 2, characterized in that: The high-voltage clamp (231) is provided with an insulating support (234), wherein the insulating support (234) comprises: An insulating plate (2341) connected to the high-voltage clamp (231); A rotating rod rotatably connected to the insulating plate (2341); and The fixed seat (2344) is rotatably connected to the rotating rod, wherein the rotating rod and the insulating plate (2341), and the rotating rod and the fixed seat (2344) are self-locking through friction.
5. The dry electrode continuous production line according to claim 4, characterized in that: The rotating rod comprises a first rod body and a second rod body, the first rod body is rotatably connected with the second rod body, and self-locking is achieved through friction; The first rod body is rotatably connected to the insulating plate (2341), and the second rod body is rotatably connected to the fixing seat (2344).
6. The dry electrode continuous production line according to claim 1, characterized in that: The injection assembly (22) comprises: A hose (221) connected to the spinning needle (21); A syringe (222) connected to the hose (221); and A propulsion device (223) is connected to the injection syringe (222).
7. The dry electrode continuous production line according to claim 1, characterized in that: The feeding mechanism (3) further comprises a conveyor belt (33) for conveying active materials and conductive agents to the mixing zone (61), wherein the conveyor belt (33) is located between the discharge port of the vibrating screen (31) and the current collector (6).
8. The dry electrode continuous production line according to claim 1, characterized in that: A reciprocating component (5) for adjusting the spinning range of the spinning mechanism (2) is provided on one side of the spinning mechanism (2), and the reciprocating movement drives the spinning mechanism (2) to move along a second reciprocating movement.
9. The dry electrode continuous production line according to claim 1, characterized in that: The vibration generating member (32) comprises: an ultrasonic receiving rod (321), arranged on the vibrating screen (31); and An ultrasonic generator (322) is connected to the ultrasonic receiving rod (321).
10. The dry electrode continuous production line according to claim 1, characterized in that: The conveying mechanism (1) comprises an unwinding roller (11) and a winding roller (12) which are arranged in sequence along the conveying direction of the current collector (6).