Pole piece drying device, equipment and drying method

Abstract

The invention relates to the technical field of lithium ion battery preparation equipment, in particular to a pole piece drying device, pole piece drying equipment and a pole piece drying method. The pole piece drying device is arranged in the drying box and comprises a shell, a first sliding assembly, a light source assembly and at least two reflecting plates. The at least two reflecting plates are arranged in the accommodating space and are used for dividing the accommodating space into at least three drying areas; the at least two reflecting plates can move relative to the first sliding assembly so as to change the positions of the reflecting plates in the containing space, and the length of at least one drying area in the at least three drying areas can be adjusted through position movement of the at least two reflecting plates; the containing space is divided into at least three drying areas through the reflecting plates, so that staged drying of the pole pieces is achieved, meanwhile, the length of the drying areas is adjusted by flexibly adjusting the positions of the reflecting plates in the containing space, and then the drying effect of the at least three drying areas is adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium-ion battery preparation equipment, and particularly relates to a pole piece drying device, equipment and drying method. Background Art

[0002] Lithium-ion batteries have the advantages of small size, high energy, and no pollution, and have been more and more widely used in portable electronic products such as mobile phones, digital cameras, and laptop computers.

[0003] In the manufacturing process of lithium-ion batteries, the drying process is one of the key links in the battery manufacturing process, and its drying effect directly affects the mechanical properties of the pole pieces and the electrochemical properties of the batteries. Traditional pole piece drying equipment usually adopts methods such as hot air circulation drying and infrared drying, but there are still the following technical defects in actual applications. Most of the current commonly used drying ovens use traditional light sources, which are difficult to meet the drying requirements of lithium-ion battery pole pieces with different specifications and different process requirements, and it is difficult to achieve precise drying control. When facing these changes, the flexibility and adaptability of traditional drying ovens are significantly insufficient; and the existing drying equipment traditionally relies on long-term high-temperature heating, which not only consumes a large amount of energy, but also has a low drying efficiency, affects the production rhythm, and increases the manufacturing cost. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention divides the accommodation space into at least three drying areas through a reflecting plate by setting a reflecting plate, a first sliding component and a light source component, so as to realize the staged drying of the pole pieces. At the same time, by flexibly adjusting the position of the reflecting plate in the accommodation space, the length of at least one of the at least three drying areas is adjusted, and then the drying effect of the at least three drying areas is adjusted.

[0005] The present invention provides a pole piece drying device, which is applied to a pole piece drying equipment. The pole piece drying equipment includes a drying oven; the pole piece drying device is arranged in the drying oven, and the pole piece drying device includes a housing, a first sliding component, a light source component and at least two reflecting plates;

[0006] One side of the first sliding component is fixedly connected to the drying oven, and the other side of the first sliding component is slidably connected to the reflecting plate;

[0007] The light source component is arranged on the side of the drying oven where the first sliding component is provided;

[0008] The housing has a receiving space, and the at least two reflector plates are arranged in the receiving space. The at least two reflector plates are used to divide the receiving space into at least three drying areas; the at least two reflector plates can move relative to the first sliding assembly to change their positions in the receiving space, and the position movement of the at least two reflector plates can adjust the length of at least one of the at least three drying areas.

[0009] Further, the sliding direction of the first sliding assembly is arranged parallel to the moving direction of the pole piece.

[0010] Further, at least one side of the reflector plate is a reflecting surface, and a reflecting structure for reflecting the light emitted by the light source assembly is arranged on the reflecting surface.

[0011] Further, the pole piece drying device further includes a driving assembly, and the driving assembly is drivingly connected to the reflector plate. The driving assembly can drive the reflector plate to move relative to the first sliding assembly.

[0012] Further, the reflector plate is arranged parallel to the cross-section of the housing; wherein, the moving direction of the pole piece is arranged perpendicular to the cross-section.

[0013] Further, the pole piece drying device further includes a second sliding assembly. One side of the second sliding assembly is fixedly connected to the drying box, and the other side of the second sliding assembly is slidably connected to the light source assembly.

[0014] The present invention also protects a pole piece drying equipment, which includes the pole piece drying device and a rubber roller conveying assembly as described above. The pole piece is wound around the rubber roller conveying assembly, and the rubber roller conveying assembly can drive the pole piece to sequentially pass through the at least three drying areas.

[0015] Further, the pole piece drying equipment further includes a controller, and the controller is respectively communicatively connected to the light source assembly and the driving assembly. The controller is configured to:

[0016] If a drying instruction for the pole piece is received, obtain the light power density and weight configuration parameters of the light source assembly required for each of the at least three drying areas;

[0017] Take the light power density and the weight configuration parameters in each of the at least three drying areas as the input of the drying area length calculation model, perform the drying area length calculation, and obtain the drying length of each of the drying areas;

[0018] Control the driving assembly to drive the at least two reflector plates to slide relative to the first sliding assembly until each of the at least three drying areas reaches the required drying length;

[0019] Control the startup of the rubber roller conveying assembly and drive the pole piece to pass through the at least three drying areas in sequence for drying.

[0020] Further, the controller is further configured to:

[0021] If the light power density of the light source assembly is not obtained, obtain the drying length of each of the at least three drying areas;

[0022] Use the drying length of each of the at least three drying areas and the weight configuration parameter as the input of the drying area length calculation model to calculate the light power density of the light source assembly required for each of the at least three drying areas, and obtain the light power density of the light source assembly required for each of the drying areas;

[0023] Control the startup of the light source assembly and adjust the light intensity of the light source assembly so that each of the drying areas reaches the required light power density;

[0024] Execute the step of controlling the startup of the rubber roller conveying assembly and driving the pole piece to pass through the at least three drying areas in sequence for drying.

[0025] The present invention also protects a drying method based on a pole piece drying device, which is applied to the pole piece drying device as described above. The method includes:

[0026] If a drying instruction for the pole piece is received, obtain the light power density of the light source assembly required for each of the at least three drying areas and the weight configuration parameter;

[0027] Use the light power density of each of the at least three drying areas and the weight configuration parameter as the input of the drying area length calculation model to calculate the drying area length, and obtain the drying length of each of the drying areas;

[0028] Control the driving assembly to drive the at least two reflecting plates to slide relative to the first sliding assembly until each of the at least three drying areas reaches the required drying length;

[0029] Control the startup of the rubber roller conveying assembly and drive the pole piece to pass through the at least three drying areas in sequence for drying;

[0030] If the light power density of the light source assembly is not obtained, obtain the drying length of each of the at least three drying areas;

[0031] Taking the drying length of each of the at least three drying areas and the weight configuration parameter as the input of the drying area length calculation model, calculate the light power density of the light source component required for each of the at least three drying areas, and obtain the light power density of the light source component required for each of the drying areas;

[0032] Control the light source component to start, and adjust the light intensity of the light source component so that each of the drying areas reaches the required light power density;

[0033] Execute the step of controlling the rubber roller conveying component to start and drive the pole piece to pass through the at least three drying areas in sequence for drying.

[0034] Implementing the embodiments of the present invention has the following beneficial effects:

[0035] The pole piece drying device of the present invention is arranged in the drying oven, which can ensure the drying effect without changing the structure of the original drying oven, and can also meet the pole piece drying requirements of lithium-ion batteries with various specifications and process requirements, greatly improving the versatility and flexibility of the pole piece drying equipment, and reducing the update cost of the pole piece drying equipment; the pole piece drying device of the present invention divides the accommodation space into at least three drying areas through the reflective plate by setting the mutually cooperating reflective plate, the first sliding component and the light source component, so as to realize the staged drying of the pole piece. At the same time, by flexibly adjusting the position of the reflective plate in the accommodation space, the length of at least one of the at least three drying areas is adjusted, and then the drying effect is adjusted, so as to achieve precise drying control to shorten the pole piece drying time and reduce the defective rate caused by uneven drying, thereby improving the overall production efficiency; at the same time, by setting the light source component, different light intensities can be set for at least three drying areas to meet the precise drying requirements of the pole pieces of various lithium-ion batteries, and improve the drying quality and production efficiency. Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions of the present invention, the accompanying drawings required for the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0037] Figure 1 It is a structural diagram of the pole piece drying device of this embodiment;

[0038] Figure 2 It is a structural diagram after the pole piece drying device of this embodiment is connected to the drying oven;

[0039] Figure 3 It is a flowchart of the drying method based on the pole piece drying equipment of this embodiment.

[0040] Among them, the corresponding reference numerals in the figure are as follows:

[0041] 1 - housing; 2 - first sliding assembly; 3 - reflector; 4 - pole piece; 5 - drying box; 6 - fan. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0043] It should be noted that the so-called "one embodiment" or "embodiment" in the embodiments of the present application refers to specific features, structures or characteristics that can be included in at least one implementation manner of the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0044] Figure 3 It is a schematic flow chart of a drying method based on a pole piece drying device provided by an embodiment of the present application. This specification provides method operation steps such as in the embodiment or flow chart, but based on routine or non - creative labor, there may be more or fewer operation steps. The order of steps listed in the embodiment is only one way among the execution orders of numerous steps, and does not represent the only execution order. When the actual system or server product executes, it can be executed in the order shown in the embodiment or the accompanying drawings or executed in parallel (for example, in an environment of parallel processors or multi - threaded processing).

[0045] See the attached Figures 1 to 3, this embodiment provides a pole piece drying device, which is applied to a pole piece drying equipment. The pole piece drying equipment includes a drying oven 5; the pole piece drying device is arranged in the drying oven 5, and the pole piece drying device includes a housing 1, a first sliding component 2, a light source component and at least two reflecting plates 3; one side of the first sliding component 2 is fixedly connected to the drying oven 5, and the other side of the first sliding component 2 is slidably connected to the reflecting plate 3; the light source component is arranged on the side of the drying oven 5 where the first sliding component 2 is provided; the housing 1 has an accommodating space, and at least two reflecting plates 3 are arranged in the accommodating space. The at least two reflecting plates 3 are used for dividing the accommodating space into at least three drying areas; the at least two reflecting plates 3 can move relative to the first sliding component to change their positions in the accommodating space, and the position movement of the at least two reflecting plates 3 can adjust the length of at least one drying area among the at least three drying areas; the pole piece drying device of the present invention is arranged in the drying oven 5, which can ensure the drying effect without changing the structure of the original drying oven 5, and can also meet the pole piece drying requirements of lithium-ion batteries with various specifications and process requirements, greatly improving the versatility and flexibility of the pole piece drying equipment and reducing the update cost of the pole piece drying equipment; the pole piece drying device of the present invention divides the accommodating space into at least three drying areas through the mutually cooperating reflecting plates 3, the first sliding component 2 and the light source component, so as to realize the staged drying of the pole piece 4. At the same time, by flexibly adjusting the position of the reflecting plate 3 in the accommodating space, the length of at least one drying area among the at least three drying areas is adjusted, and then the drying effect is adjusted, achieving precise drying control to shorten the pole piece drying time and reduce the defective rate caused by uneven drying, thereby improving the overall production efficiency; at the same time, by setting the light source component, different light intensities can be set in at least three drying areas to meet the precise drying requirements of the pole pieces of various lithium-ion batteries, improving the drying quality and production efficiency.

[0046] It can be understood that the pole piece drying device in this embodiment can divide the accommodating space by setting the reflecting plate 3 to form multiple drying areas. The pole piece 4 is driven by the rubber roller conveying component and passes through the multiple drying areas in sequence for staged drying, so as to meet the preparation of the pole piece 4 in lithium-ion batteries with different process requirements and achieve precise drying control of the pole piece 4; at the same time, after the position of the reflecting plate 3 is adjusted, the drying requirements of different drying areas can also be met by adjusting the light intensity emitted by the light source component, so as to achieve the precise drying requirements of the pole piece 4.

[0047] Specifically, in this embodiment, the drying requirements of different drying areas can be met by changing the position of the reflecting plate 3, changing the position of the light source component or changing the light intensity emitted by the light source component, so as to achieve the effect of precise staged drying.

[0048] In this embodiment, the pole piece drying device is provided with at least two reflecting plates 3. The specific number of the reflecting plates 3 in this embodiment is not set, as long as the number of drying areas required by the user is satisfied.

[0049] In the case where the pole piece drying device requires three drying areas, the pole piece drying device is provided with two reflecting plates 3 to divide the accommodating area into three drying areas. Both side surfaces of the above-mentioned reflecting plates 3 are reflecting surfaces; the pole piece drying device is provided with four reflecting plates 3 to divide the accommodating area into three drying areas, and one side surface of the above-mentioned reflecting plates 3 is a reflecting surface; on the basis of setting three drying areas, in order to increase the illumination intensity without changing the light source assembly, a reflecting plate 3 with a reflecting surface on one side can be further provided on both sides of the accommodating space to increase the illumination intensity of the drying areas on both sides of the accommodating space.

[0050] In this embodiment, the light source assembly is a component capable of drying the pole piece 4. To ensure that the light source assembly can dry each of at least three drying areas, the light source assembly includes at least the same number of light source elements as the number of drying areas. Preferably, the light source elements can be infrared heating tubes, LED lights, VCSELs (vertical cavity surface emitting lasers), or laser generators.

[0051] In this embodiment, the top of the accommodating space is arranged close to the light source assembly. The pole piece 4 can move from the bottom of the accommodating space under the drive of the rubber roller conveying assembly. The surfaces of the pole piece 4 are respectively parallel to the top and bottom of the accommodating space.

[0052] In some possible embodiments, the sliding direction of the first sliding assembly 2 is arranged parallel to the moving direction of the pole piece 4. By the above setting, it can be ensured that the reflecting plate 3 connected to the first sliding assembly 2 can move along the moving direction of the pole piece 4, so as to form at least three drying areas along the length direction of the drying box 5. In this way, it can be ensured that the pole piece 4 passes through at least three drying areas in sequence under the drive of the rubber roller conveying assembly, thereby ensuring the drying effect and drying quality of the pole piece 4.

[0053] In this embodiment, the number of the first sliding assemblies 2 is not limited, that is, the first sliding assemblies 2 are arranged on the top of the drying box 5 according to actual needs. The number of the first sliding assemblies 2 is one, two or more. When the number of the first sliding assemblies 2 is at least two, at least two first sliding assemblies 2 are arranged at intervals along the width direction of the drying box 5.

[0054] Preferably, the number of the first sliding assemblies 2 is two, and the two first sliding assemblies 2 are arranged at intervals along the width direction of the drying box 5 on the top of the drying box 5.

[0055] In this embodiment, the specific structure of the first sliding component 2 is not limited, as long as it can ensure that the first sliding component 2 can drive the reflector 3 to move in the accommodation space.

[0056] Preferably, the first sliding component 2 includes a sliding rail and a slider that are slidably engaged. The sliding rail is fixedly arranged on the top of the drying box 5, and the length direction of the sliding rail is parallel to the length direction of the drying box 5. The slider is fixedly connected to the reflector 3.

[0057] Specifically, the number of sliders in each group of the first sliding component 2 corresponds one-to-one to the number of reflectors 3.

[0058] In some other possible embodiments, the first sliding component 2 can also be a magnetic levitation guide rail or a pulley assembly. The specific structure of the magnetic levitation guide rail or the pulley assembly is not limited, as long as it can ensure that the reflector 3 can reciprocate in the accommodation space. Specifically, when the first sliding component 2 is a pulley assembly, the pulley assembly includes at least one first pulley, at least one second pulley, a first rope wound around at least one first pulley, a second rope wound around at least one second pulley, a first rope driving member, and a second rope driving member. One end of the first rope is fixedly connected to the reflector 3 after passing through at least one first pulley, and the other end of the first rope is fixedly connected to the first rope driving member. The first rope driving member drives the reflector 3 to move in the first direction. One end of the second rope is fixedly connected to the reflector 3 after passing through at least one second pulley, and the other end of the second rope is fixedly connected to the second rope driving member. The second rope driving member drives the reflector 3 to move in the second direction, where the first direction is opposite to the second direction, and the first rope and the second rope in the same group of the first sliding component 2 are connected to the same reflector 3, so that the reflector 3 can reciprocate in the accommodation space.

[0059] In some possible embodiments, at least one side of the reflector 3 is a reflecting surface, and a reflecting structure for scattering the light emitted by the light source assembly is provided on the reflecting surface. Through the reflecting structure, the lighting effect of the light source assembly on the electrode plate 4 can be improved, and on the basis of not changing the required lighting intensity in the drying area, the energy consumption of the light source assembly can be reduced, and the drying cost of the electrode plate 4 can be reduced.

[0060] Specifically, the reflecting structure is to provide special textures on the reflecting surface, and the special textures evenly cover the above-mentioned reflecting surface. Preferably, concave and convex texture structures are provided on the reflecting surface.

[0061] In this embodiment, one side of the reflector 3 is a reflecting surface or both opposite sides of the reflector 3 are reflecting surfaces.

[0062] In some possible embodiments, the pole piece drying device further includes a driving component, which is drivingly connected to the reflector 3. The driving component can drive the reflector 3 to move relative to the first sliding component 2. By setting the driving component to drive the reflector 3 to move, the position of the reflector 3 can be accurately controlled. Compared with manually adjusting the position of the reflector 3, the adjustment speed of the reflector 3 can also be increased.

[0063] In this embodiment, the specific structure of the driving component is not limited, as long as it is ensured that the driving component can drive the reflector 3 to move relative to the first sliding component 2. Preferably, the driving component is a motor. After the controller issues an instruction, the motor drives the slider to move on the slide rail, thereby realizing the position adjustment of the reflector 3. The motor uses a high-precision stepping motor, which can accurately control the moving distance of the reflector and ensure the accuracy of the drying area division.

[0064] In this embodiment, the driving component can drive each reflector 3 in the pole piece drying device to slide relative to the first sliding component 2 to form at least three drying areas; the driving component can also only drive some reflectors 3 in the pole piece drying device to slide relative to the first sliding component 2 to form at least three drying areas.

[0065] In some possible embodiments, taking the driving component only driving two reflectors 3 to move to form three drying areas of the required length as an example, to form three drying areas, at least four reflectors 3 are required. Along the moving direction of the pole piece 4, two of the reflectors 3 are arranged at opposite ends of the housing 1, and the other two reflectors 3 are arranged inside the housing 1, and both side surfaces of the other two reflectors 3 are reflecting surfaces; the two reflectors 3 arranged at opposite ends of the housing 1 are fixed relative to the housing 1, and the driving component drives the other two reflectors 3 to move inside the housing 1 to form three drying areas of the required drying length.

[0066] In some possible embodiments, the reflector 3 is arranged parallel to the cross-section of the housing 11; wherein, the moving direction of the pole piece 4 is arranged perpendicular to the cross-section. By arranging the reflector 3 parallel to the cross-section of the housing 11, it can be ensured that the space of the drying area separated by the reflector 3 is regular, avoiding the occlusion of the light emitted by the light source component due to the irregular space of the drying area, resulting in different drying effects in different areas of the pole piece 4.

[0067] In this embodiment, at least two reflectors 3 are arranged in parallel in the accommodation space, and the reflector 3 is arranged parallel to the cross-section of the housing 11.

[0068] In some possible embodiments, the pole piece drying device further includes a second sliding component. One side of the second sliding component is fixedly connected to the drying oven 5, and the other side of the second sliding component is slidably connected to the light source component. By providing the second sliding component, the light source component connected to the second sliding component can be moved relative to the drying area to adjust the light intensity of the drying area, so as to achieve the effect of flexibly adjusting the light area and intensity, and further meet the precise drying requirements of the pole pieces 4 of various lithium-ion batteries and improve the drying quality.

[0069] In this embodiment, the specific structure of the second sliding component is not limited, as long as it can ensure that the second sliding component can drive the light source component to move.

[0070] Preferably, the second sliding component includes a sliding rail and a slider that are slidably engaged. The sliding rail is fixedly arranged on the top of the drying oven 5, and the slider is fixedly connected to the light source component; the length direction of the sliding rail can be set to be parallel to the length direction of the drying oven 5, or can be set to be parallel to the width direction of the drying oven 5. Such a setting ensures that the light source component can move along the length direction of the drying oven 5 and / or along the width direction of the drying oven 5.

[0071] In some other possible embodiments, the second sliding component can also be a magnetic levitation guide rail or a pulley component. The specific structure of the magnetic levitation guide rail or the pulley component is not limited, as long as it can ensure that the reflector 3 can reciprocate in the accommodation space.

[0072] The present invention also protects a pole piece drying equipment, which includes the above-mentioned pole piece drying device and a rubber roller conveying component. The pole piece 4 is wound around the rubber roller conveying component, and the rubber roller conveying component can drive the pole piece 4 to pass through at least three drying areas in sequence. By providing the rubber roller conveying component, the conveying of the pole piece 4 can be realized, ensuring that the pole piece 4 can pass through at least three drying areas in sequence for drying, and ensuring the drying effect and drying quality of the pole piece 4.

[0073] In this embodiment, the pole piece drying equipment includes two rubber roller conveying components, which are respectively arranged on both sides of the drying oven 5. The arrangement directions of the two rubber roller conveying components are consistent with the length direction of the drying oven 5. Pole piece inlets and pole piece outlets are oppositely arranged on both sides of the drying oven 5 where the rubber roller conveying components are provided. The pole piece 4 enters the drying oven 5 from the pole piece inlet and passes through at least three drying areas in sequence, and leaves the drying oven 5 from the pole piece outlet. Among them, the arrangement directions of the pole piece inlet and the pole piece outlet are consistent with the length direction of the drying oven 5; the rubber roller conveying component close to the pole piece inlet can be regarded as a unwinding mechanism, and the rubber roller conveying component close to the pole piece outlet can be regarded as a winding mechanism.

[0074] Specifically, the shapes of the polar plate inlet and the polar plate outlet are adapted to the shape of the polar plate 4. Both the polar plate inlet and the polar plate outlet are long strip holes, and the length direction of the long strip holes is consistent with the width direction of the accommodation space.

[0075] Specifically, the rubber roller conveying assembly can control the moving speed of the polar plate, and the moving speeds of the polar plate 4 passing through at least three drying areas are the same.

[0076] In some possible embodiments, the polar plate drying device further includes a coating roller assembly. The coating roller assembly cooperates with the rubber roller conveying assembly near the polar plate inlet to coat the surface of the polar plate 4 with slurry, and the drying oven 5 is used to dry the coated slurry.

[0077] In some possible embodiments, the polar plate drying device further includes a fan 6. The fan 6 is arranged in the drying oven 5. The fan 6 can promote the gas circulation in the drying oven 5. An air outlet and an air suction port are arranged on the inner wall of the drying oven 5. Through the air outlet, air can be blown into the drying oven 5, and through the air suction port, the gas in the drying oven 5 can be pumped out of the drying oven 5.

[0078] In this embodiment, the specific positions of the air outlet and the air suction port are not limited, as long as it is ensured that the blowing and air pumping operations can be completed.

[0079] In this embodiment, the polar plate drying device includes at least one drying oven 5. At least one drying oven 5 is arranged adjacent to each other along the moving direction of the polar plate 4. The number of drying ovens 5 included in the polar plate drying device is set according to the actual situation, and the number of drying areas in each drying oven 5 is also set according to the actual situation, which is not limited herein.

[0080] The working process of the polar plate drying device: Control the coating roller assembly and the rubber roller conveying assembly to start. The coating roller assembly and the rubber roller conveying assembly cooperate to coat the surface of the polar plate 4 with slurry. The rubber roller conveying assembly drives the polar plate 4 to enter the drying oven 5 from the polar plate inlet, and drives the polar plate 4 to pass through at least three drying areas in sequence. At least three drying areas respectively dry the polar plate 4. During the drying process, the fan 6 promotes the gas circulation in the drying oven 5, and pumps the gas containing a large amount of moisture out of the drying oven 5 through the air suction port. At the same time, dry gas is injected into the drying oven 5 through the air outlet. After the polar plate 4 passes through at least three drying areas and is dried, the rubber roller conveying assembly drives the polar plate 4 to move out from the polar plate outlet. At this time, the drying of the polar plate 4 is completed.

[0081] In some possible embodiments, the polar plate drying device further includes a controller. The controller is respectively communicatively connected to the light source assembly and the driving assembly. The controller is configured to:

[0082] If a drying instruction for the polar plate 4 is received, obtain the light power density and weight configuration parameters of the light source assembly required for each of at least three drying areas;

[0083] Taking the light power density and weight configuration parameters of each of at least three drying regions as the input of the drying region length calculation model, perform the drying region length calculation to obtain the drying length of each drying region;

[0084] Control the driving component to drive at least two reflecting plates 3 to slide relative to the first sliding component 2 until each of at least three drying regions reaches the required drying length;

[0085] Control the rubber roller conveying component to start and drive the pole piece 4 to pass through at least three drying regions in sequence for drying. After the controller receives the drying instruction for the pole piece 4, it can take the light power density and weight configuration parameters of each of at least three drying regions as the input of the drying region length calculation model, perform the drying region length calculation to obtain the drying length of each drying region, and can also control the driving component to drive at least two reflecting plates 3 to slide relative to the first sliding component 2 until each of at least three drying regions reaches the required drying length. After the movement of the reflecting plate 3 is completed, control the pole piece 4 to pass through three drying regions in sequence for drying. In this way, the staged drying of the pole piece 4 can be realized. At the same time, by flexibly adjusting the position of the reflecting plate 3 in the accommodating space, the length of at least one drying region among the at least three drying regions can be adjusted, thereby adjusting the drying effect; at the same time, by setting the light source component, different light intensities can be set for at least three drying regions to meet the precise drying requirements of the pole pieces 4 of various lithium-ion batteries, and improve the drying quality and production efficiency.

[0086] It can be understood that the light power density of the light source component required for each of at least three drying regions is a known parameter, and the required length of the drying region is an unknown parameter. Through the light power density and weight configuration parameters, the required length of the drying region is determined, and the reflecting plate 3 is controlled to move relative to the first sliding component 2 until the required length of the drying region is reached.

[0087] In some possible embodiments, the controller is further configured to:

[0088] If the light power density of the light source component is not obtained, obtain the drying length of each of at least three drying regions;

[0089] Taking the drying length of each of at least three drying regions and the weight configuration parameters as the input of the drying region length calculation model, perform the calculation of the light power density of the light source component required for each of at least three drying regions to obtain the light power density of the light source component required for each drying region;

[0090] Control the light source component to start and adjust the light intensity of the light source component until each drying region reaches the required light power density;

[0091] Execute the step of starting the control rubber roller conveying assembly and driving the pole piece 4 to pass through at least three drying areas in sequence for drying. After the controller fails to obtain the light power density of the light source assembly, it can use the drying length and weight configuration parameters of each of the at least three drying areas as the input of the drying area length calculation model to calculate the light power density of the light source assembly required for each of the at least three drying areas, obtain the light power density of the light source assembly required for each drying area, and can also control the light source assembly to start and adjust the illumination intensity of the light source assembly to the required light power density for each drying area. After the adjustment of the illumination intensity or position of the light source assembly is completed, control the pole piece 4 to pass through the three drying areas in sequence for drying. In this way, the staged drying of the pole piece 4 can be realized. At the same time, by flexibly adjusting the position of the reflector 3 in the accommodation space, the length of at least one of the at least three drying areas can be adjusted, thereby adjusting the drying effect; at the same time, by setting the light source assembly, different illumination intensities can be set for the at least three drying areas to meet the precise drying requirements of the pole pieces 4 of various lithium-ion batteries, improving the drying quality and production efficiency.

[0092] It can be understood that the drying length of each of the at least three drying areas is a known parameter, and the light power density is an unknown parameter. Through the light power density and the weight configuration parameter, the light power density required for the drying area is determined, the light source assembly is controlled to start, and the illumination intensity of the light source assembly is adjusted to the required light power density for each drying area.

[0093] In some possible embodiments, the controller is further configured to:

[0094] Obtain the solvent density, the latent heat of vaporization of the solvent, the absorption rate of the pole piece 4, the moving speed of the pole piece 4, and the initial thickness of the pole piece 4 in the pole piece 4;

[0095] Determine the proportionality coefficient according to the solvent density, the latent heat of vaporization of the solvent, the absorption rate of the pole piece 4, the moving speed of the pole piece 4, and the initial thickness of the pole piece 4 in the pole piece 4; wherein, the proportionality coefficient corresponding to each drying area is the same, and the proportionality coefficient is defined as A;

[0096] Obtain the difference in the volume fraction of the pole piece 4 after drying is completed in each drying area;

[0097] Determine the weight counterweight parameter corresponding to each drying area according to the proportionality coefficient and the difference in the volume fraction of the pole piece 4 corresponding to each drying area.

[0098] Specifically, the moving speed of the pole piece 4 is the running speed of the rubber roller conveying assembly, which is v, the solvent density in the pole piece 4 is ρ L and the latent heat of vaporization of the solvent is L, the absorption rate of the pole piece 4 is μ a , and the initial thickness of the pole piece 4 is dwet The above parameters are all known parameters, and the above parameters are the same for each drying area. Therefore, the calculated proportionality coefficients are the same.

[0099] In this embodiment, the volume fraction differences of the corresponding electrode sheets 4 in each drying area are different. Taking three drying areas as an example in this embodiment, the weight counterweight parameters corresponding to the three drying areas are determined. Specifically, the three drying areas are sequentially divided into a first drying area, a second drying area, and a third drying area according to the moving direction of the electrode sheet 4.

[0100] The volume fraction difference of the first drying area is equal to θ L,ini -θ L,C , θ L,ini is the volume fraction of the solvent of the initial wet electrode, and θ L,C =∈×ε V , where ∈ is the dry electrode porosity, ∈ = 0.2 - 0.8, generally taking 0.52, ∈ = 1 - θ S *d wet / d dry , where θ S is the volume fraction of the solid component in the wet electrode and can be calculated according to the specific ratio; ε V is the volume shrinkage rate, and ε V =d dry / d wet , where d wet is the set coating thickness, and d dry is the corresponding thickness after drying. For the specific ratio and coating thickness, given one of ∈ and d dry the other can be calculated.

[0101] The volume fraction difference of the second drying area is equal to θ L,C -θ L,T , θ L,T is the volume fraction of a special solvent, generally set to 15 - 25%, and the actual value is set according to the actual situation.

[0102] The moisture content of the electrode sheet is reduced to the residual saturation θ * after passing through the third area, and the volume fraction difference of the third drying area is equal to θ L,T -θ * ;

[0103] In this embodiment, when setting three drying areas, the parameters of the first drying area need to satisfy the equation: μ a ×P1×x1 / v1 = E = (θ L,ini -θ L,C )×d wet ×ρ L ×L, μ a, v1, d wet , ρ L Combined with L to calculate the proportionality coefficient, P1 = A(θ L,ini - θ L,C )x1; specifically, make P1 larger and x1 smaller at the same tape running speed; where P1 is the optical power density applied in the first region (unit: watt per square meter W / m 2 ), and x1 is the length of the first drying region.

[0104] The parameters of the second drying region need to satisfy the equation: μ a ×P2×x2 / v2 = (θ L,C - θ L,T )×d wet ×ρ L ×L, μ a , v2, d wet , ρ L Combined with L to calculate the proportionality coefficient, P2 = A(θ L,C - θ L,T )x2; specifically, make P2 larger and x2 smaller at the same tape running speed; where P2 is the optical power density applied in the second region (unit: watt per square meter W / m 2 ), and x2 is the length of the second drying region.

[0105] The parameters of the third drying region need to satisfy the equation: μ a ×P3×x3 / v3 = (θ L,T - θ * )×d wet ×ρ L ×L, μ a , v3, d wet , ρ L Combined with L to calculate the proportionality coefficient, P3 = A(θ L,T - θ * )x3; specifically, make P3 larger and x3 smaller at the same tape running speed; where P3 is the optical power density applied in the third region (unit: watt per square meter W / m 2 ), and x3 is the length of the third drying region; where the residual saturation θ* refers to the volume ratio of the part of a certain phase fluid that remains in the pores and cannot be displaced after the displacement process ends in a porous medium under specific conditions. The result of the experiment under standard atmospheric pressure is a moisture content (mass fraction) of 0 - 2%, preferably less than 1%.

[0106] In this embodiment, the optical power density (unit: watt per square meter W / m 2 ) of the third drying region is set to satisfy the equation: P3 ≤ 2×h c ×(Tth -T amb ), where h c is the convective heat transfer coefficient (unit: watt per square meter per Kelvin, W / (m 2 K)), T th is the electrode damage threshold (unit: Kelvin, K). The material system in Table 1 is 150 °C, and T amb is the ambient temperature (unit: Kelvin, K).

[0107] Preferably, P2 ≥ P1, and v1 = v2 = v3.

[0108] The electrode sheet 4 to be dried in this embodiment is composed of a current collector and an active material layer, and the material ratio of the active material layer is shown in Table 1.

[0109] Table 1

[0110]

[0111] It should be noted that the electrode sheet 4 to be dried is a negative electrode sheet. In the active material layer, graphite is used as the negative electrode active material; carbon black is used as the conductive agent; CMC is carboxymethyl cellulose, and its functions in the negative electrode slurry include thickening and anti-settling, stabilizing the processing performance of the electrode, assisting in improving the battery cycle performance, increasing the peel strength of the electrode sheet, dispersing the negative electrode active material and the conductive agent, and assisting in the bonding function, etc.; SBR is styrene-butadiene rubber, which is used to provide the bonding force between the negative electrode active material particles and between the active material layer and the current collector.

[0112] The present invention also protects a drying method based on an electrode sheet drying device, which is applied to the above electrode sheet drying device. The method includes:

[0113] S101: If a drying instruction for the electrode sheet is received, obtain the light power density and weight configuration parameters of the light source components required for each of at least three drying regions;

[0114] S102: Use the light power density and weight configuration parameters in each of the at least three drying regions as the input of the drying region length calculation model, perform the drying region length calculation, and obtain the drying length of each drying region;

[0115] S103: Control the driving component to drive at least two reflecting plates 3 to slide relative to the first sliding component 2 until each of the at least three drying regions reaches the required drying length;

[0116] S104: Control the rubber roller conveying component to start and drive the electrode sheet 4 to pass through at least three drying regions in sequence for drying;

[0117] S105: If the optical power density of the light source component is not obtained, obtain the drying length of each of at least three drying areas;

[0118] S106: Use the drying length and the weight configuration parameter of each of at least three drying areas as the input of the drying area length calculation model, perform the calculation of the optical power density of the light source component required for each of the at least three drying areas, and obtain the optical power density of the light source component required for each of the at least three drying areas;

[0119] S107: Control the light source component to start, and adjust the illumination intensity of the light source component until the optical power density required for each drying area is reached;

[0120] S108: Execute the step of controlling the rubber roller conveying component to start and drive the electrode sheet 4 to pass through at least three drying areas in sequence for drying. Through the above drying method, the staged drying of the electrode sheet 4 can be realized. At the same time, by flexibly adjusting the position of the reflector 3 in the accommodation space, the length of at least one of the at least three drying areas can be adjusted, thereby adjusting the drying effect; at the same time, by setting the light source component, different illumination intensities can be set for at least three drying areas to meet the precise drying requirements of the electrode sheets 4 of various lithium-ion batteries, improving the drying quality and production efficiency.

[0121] Before obtaining the weight configuration parameter, the method further includes:

[0122] S1011: Obtain the solvent density, the latent heat of vaporization of the solvent, the absorptivity of the electrode sheet 4, the moving speed of the electrode sheet 4, and the initial thickness of the electrode sheet 4 in the electrode sheet 4;

[0123] S1012: Determine the proportionality coefficient according to the solvent density, the latent heat of vaporization of the solvent, the absorptivity of the electrode sheet 4, the moving speed of the electrode sheet 4, and the initial thickness of the electrode sheet 4 in the electrode sheet 4;

[0124] S1013: Obtain the volume fraction difference of the electrode sheet 4 after drying in each drying area;

[0125] S104: Determine the weight counterweight parameter corresponding to each drying area according to the proportionality coefficient and the volume fraction difference of the electrode sheet 4 corresponding to each drying area.

[0126] The present invention also protects a drying device based on an electrode sheet drying device for the drying method based on an electrode sheet drying device as above. The device includes:

[0127] The first acquisition unit is used to acquire the solvent density, the latent heat of vaporization of the solvent, the absorptivity of the electrode sheet 4, the moving speed of the electrode sheet 4, and the initial thickness of the electrode sheet 4 in the electrode sheet 4;

[0128] The first execution unit is configured to determine a proportionality coefficient according to the solvent density, the latent heat of vaporization of the solvent, the absorptivity of the electrode sheet 4, the moving speed of the electrode sheet 4, and the initial thickness of the electrode sheet 4;

[0129] The second acquisition unit is configured to acquire the volume fraction difference of the electrode sheet 4 after drying is completed in each drying area;

[0130] The second execution unit is configured to determine the weight counterweight parameter corresponding to each drying area according to the proportionality coefficient and the volume fraction difference of the electrode sheet 4 corresponding to each drying area;

[0131] The third acquisition unit is configured to, if a drying instruction for the electrode sheet is received, acquire the light power density and the weight configuration parameter of the light source components required for at least three drying areas respectively;

[0132] The third execution unit is configured to use the light power density and the weight configuration parameter in each of at least three drying areas as the input of the drying area length calculation model, perform drying area length calculation, and obtain the drying length of each drying area;

[0133] The fourth execution unit is configured to control the driving component to drive at least two reflectors 3 to slide relative to the first sliding component 2 until each of at least three drying areas reaches the required drying length;

[0134] The fifth execution unit is configured to control the rubber roller conveying component to start and drive the electrode sheet 4 to pass through at least three drying areas in sequence for drying;

[0135] The fourth acquisition unit is configured to, if the light power density of the light source component is not acquired, acquire the drying length of each of at least three drying areas;

[0136] The sixth execution unit is configured to use the drying length and the weight configuration parameter of each of at least three drying areas as the input of the drying area length calculation model, perform calculation of the light power density of the light source components required for at least three drying areas respectively, and obtain the light power density of the light source components required for each of at least three drying areas;

[0137] The seventh execution unit is configured to control the light source component to start and adjust the illumination intensity of the light source component until each drying area reaches the required light power density;

[0138] The eighth execution unit is configured to execute the step of controlling the rubber roller conveying component to start and drive the electrode sheet 4 to pass through at least three drying areas in sequence for drying.

[0139] The present invention also protects a computer-readable storage medium, in which at least one instruction or at least one program segment is stored, and at least one instruction or at least one program segment is loaded and executed by a processor to perform the drying method based on the electrode sheet drying device as described above.

[0140] A computer program product may include a storage medium having thereon computer-readable program instructions for causing a processor to implement various aspects of the present application.

[0141] The storage medium may be a tangible device that can retain and store instructions for use by an instruction execution device. The storage medium is not limited to an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanically encoded device such as a punched card or raised structures in grooves having instructions stored thereon, and any suitable combination of the foregoing. The storage medium as used herein is not to be construed as a transitory signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., an optical pulse through an optical fiber cable), or an electrical signal transmitted through a wire.

[0142] The computer-readable program instructions described herein may be downloaded from a storage medium to respective computing / processing devices, or may be downloaded to an external computer or an external storage device through a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network may include a copper transmission cable, an optical fiber transmission, a wireless transmission, a router, a firewall, a switch, a gateway computer, and / or an edge server. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a storage medium in each of the computing / processing devices.

[0143] The computer program instructions for performing the operations of the present application may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine - related instructions, microcode, firmware instructions, state - setting data, or source code or object code written in any combination of one or more programming languages, including object - oriented programming languages such as Smalltalk, C++, etc., and conventional procedural programming languages such as the "C" language or similar programming languages. The computer - readable program instructions may be executed entirely on the target object computer, partially on the target object computer, executed as a stand - alone software package, partially on the target object computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the target object computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., by using an Internet service provider to connect through the Internet). In some embodiments, by using the state information of the computer - readable program instructions to customize an electronic circuit, such as a programmable logic circuit, a field - programmable gate array (FPGA), or a programmable logic array (PLA), the electronic circuit can execute the computer - readable program instructions to implement various aspects of the present application.

[0144] These computer - readable program instructions can be provided to a processor of a general - purpose computer, a special - purpose computer, or other programmable data - processing apparatus to produce a machine such that, when these instructions are executed by the processor of the computer or other programmable data - processing apparatus, a means for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram is produced. These computer - readable program instructions can also be stored in a storage medium, and these instructions cause the computer, the programmable data - processing apparatus, and / or other devices to work in a specific manner. Thus, the computer - readable medium storing the instructions includes a manufactured article.

[0145] These computer - readable program instructions can be provided to a processor of a general - purpose computer, a special - purpose computer, or other programmable data - processing apparatus to produce a machine such that, when these instructions are executed by the processor of the computer or other programmable data - processing apparatus, a means for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram is produced. These computer - readable program instructions can also be stored in a computer - readable storage medium, and these instructions cause the computer, the programmable data - processing apparatus, and / or other devices to work in a specific manner. Thus, the computer - readable medium storing the instructions includes a manufactured article, which includes instructions for implementing various aspects of the functions / actions specified in one or more blocks of the flowchart and / or block diagram.

[0146] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices, causing a series of operational steps to be performed on the computer, other programmable data processing apparatus, or other devices to generate a computer-implemented process, thereby enabling the instructions executed on the computer, other programmable data processing apparatus, or other devices to implement the specified functions / acts.

[0147] The present invention also protects an electronic device, including at least one processor and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the at least one processor, and the at least one processor implements the drying method based on the pole piece drying device as described above by executing the instructions stored in the memory.

[0148] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to technologies in the market, or to enable other ordinary skill in the art in the technical field to understand the disclosed embodiments.

[0149] In the case of no conflict, the above embodiments in this article and the features in the embodiments can be combined with each other.

[0150] The above-disclosed is only a preferred embodiment of the present invention, and of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A pole piece drying device is applied to a pole piece drying equipment, and the pole piece drying equipment includes a drying oven (5); the pole piece drying device is arranged in the drying oven (5), and is characterized in that, The electrode drying device includes a housing (1), a first sliding assembly (2), a light source assembly, and at least two reflector plates (3); One side of the first sliding assembly (2) is fixedly connected to the drying oven (5), and the other side of the first sliding assembly (2) is slidably connected to the reflector plate (3); The light source assembly is arranged on the side of the drying oven (5) where the first sliding assembly (2) is provided; The housing (1) has an accommodating space, and the at least two reflector plates (3) are arranged in the accommodating space. The at least two reflector plates (3) are used to divide the accommodating space into at least three drying areas; The at least two reflector plates (3) can move relative to the first sliding assembly to change their positions in the accommodating space. The position movement of the at least two reflector plates (3) can adjust the length of at least one of the at least three drying areas.

2. The pole piece drying device according to claim 1, wherein, The sliding direction of the first sliding assembly (2) is arranged parallel to the moving direction of the electrode (4).

3. The pole piece drying device according to claim 1, characterized in that, At least one side of the reflector plate (3) is a reflecting surface, and a reflecting structure for reflecting the light emitted by the light source assembly is arranged on the reflecting surface.

4. The pole piece drying device according to claim 1, characterized in that, The electrode drying device further includes a driving assembly, which is drivingly connected to the reflector plate (3), and the driving assembly can drive the reflector plate (3) to move relative to the first sliding assembly (2).

5. The pole piece drying device according to any one of claims 1-4, characterized in that, The reflector plate (3) is arranged parallel to the cross-section of the housing (11); wherein, the moving direction of the electrode (4) is arranged perpendicular to the cross-section.

6. The pole piece drying device according to any one of claims 1-4, characterized in that, The electrode drying device further includes a second sliding assembly. One side of the second sliding assembly is fixedly connected to the drying oven (5), and the other side of the second sliding assembly is slidably connected to the light source assembly.

7. A pole piece drying device, characterized in that, It includes the electrode drying device according to any one of claims 1-6 and a rubber roller conveying assembly. The electrode (4) is wound around the rubber roller conveying assembly, and the rubber roller conveying assembly can drive the electrode (4) to sequentially pass through the at least three drying areas.

8. The pole piece drying device according to claim 7, characterized in that, The electrode drying equipment further includes a controller, which is respectively communicatively connected to the light source assembly and the driving assembly. The controller is configured to: If a drying instruction for the electrode (4) is received, obtain the light power density and weight configuration parameters of the light source assembly required for each of the at least three drying areas; Use the light power density and the weight configuration parameters in each of the at least three drying areas as the input of the drying area length calculation model to perform drying area length calculation, and obtain the drying length of each drying area; Control the driving assembly to drive the at least two reflector plates (3) to slide relative to the first sliding assembly (2) until each of the at least three drying areas reaches the required drying length; Control the rubber roller conveying assembly to start and drive the electrode (4) to sequentially pass through the at least three drying areas for drying.

9. The pole piece drying device according to claim 8, characterized in that, The controller is further configured to: If the light power density of the light source assembly is not obtained, obtain the drying length of each of the at least three drying areas; Using the drying length of each of the at least three drying areas and the weight configuration parameter as the input of the drying area length calculation model, calculate the light power density of the light source components required for each of the at least three drying areas, and obtain the light power density of the light source components required for each of the drying areas; Control the light source components to start, and adjust the light intensity of the light source components until the light power density required for each of the drying areas is reached; Execute the step of controlling the rubber roller conveying component to start and drive the pole piece (4) to pass through the at least three drying areas in sequence for drying.

10. A drying method based on a pole piece drying device, characterized in that, Applied to the pole piece drying equipment according to any one of claims 7-9, the method includes: If a drying instruction for the pole piece is received, obtain the light power density of the light source components required for each of the at least three drying areas and the weight configuration parameter; Using the light power density of each of the at least three drying areas and the weight configuration parameter as the input of the drying area length calculation model, perform the drying area length calculation, and obtain the drying length of each of the drying areas; Control the driving component to drive the at least two reflectors (3) to slide relative to the first sliding component (2) until the drying length required for each of the at least three drying areas is reached; Control the rubber roller conveying component to start and drive the pole piece (4) to pass through the at least three drying areas in sequence for drying; If the light power density of the light source components is not obtained, obtain the drying length of each of the at least three drying areas; Using the drying length of each of the at least three drying areas and the weight configuration parameter as the input of the drying area length calculation model, calculate the light power density of the light source components required for each of the at least three drying areas, and obtain the light power density of the light source components required for each of the drying areas; Control the light source components to start, and adjust the light intensity of the light source components until the light power density required for each of the drying areas is reached; Execute the step of controlling the rubber roller conveying component to start and drive the pole piece (4) to pass through the at least three drying areas in sequence for drying.

Images