A sheeting process for continuously coating and non-drying plates

Abstract

The present application relates to the technical field of battery piece production, and particularly relates to a plate collecting process for continuous coating and non-drying plate. The process comprises the following steps: S1: continuously conveying a non-drying continuous wet plate strip with film-coated paper on the surface in the conveying direction, and performing roll cutting and cutting on the non-drying continuous wet plate strip during the conveying process to obtain multiple independent wet plates; S2: conveying the wet plate to a residual paste treatment station to perform water and paste removal treatment on the surface of the film-coated paper of the wet plate, remove the free water and the water-containing lead paste layer on the surface of the film-coated paper, and obtain a clean plate; and S3: stacking the plates obtained after the residual paste treatment one by one to form a plate stack. The present application effectively solves the technical problem that the water-containing lead paste layer on the surface of the film-coated paper of the wet plate cannot be removed due to the extrusion caused by roll cutting, and the wet plates are adhered after stacking.

Description

Technical Field

[0001] This invention relates to the field of battery cell manufacturing technology, and in particular to a cell collection process for continuously coated plates without surface drying. Background Technology

[0002] The production of electrode plates is one of the key processes in battery manufacturing. Continuous coating is a common method used in current electrode plate production. It involves continuously applying lead paste to the surface of a large grid plate, covering the wet electrode plate with a film paper, and then cutting it into individual electrode plates by a roll cutter. Finally, the individual wet electrode plates are collected and stacked by a receiving mechanism and sent to the subsequent curing and drying process.

[0003] In continuous coating processes, to prevent adhesion between wet electrode plates after paste application, a coating paper (or coated sheet paper) is usually placed on the surface of the wet electrode plates to separate adjacent plates. However, in actual production, it has been found that relying solely on the coating paper cannot completely prevent adhesion between the plates. Especially when using a non-surface drying process (i.e., directly entering the slitting and stacking process after paste application without surface drying treatment), the lead paste on the surface of the wet electrode plates has a high water content. During the slitting process, the shearing and squeezing action of the slitting blades forces the lead paste to be squeezed out from the cut edge of the electrode plate and overflows onto the outside of the coating paper on the electrode plate surface. This squeezed-out lead paste forms an arc-shaped water film on the surface of the coating paper—that is, a thin layer of lead paste containing moisture adheres to the surface of the coating paper.

[0004] To prevent adhesion between electrode plates, patent document CN206370465U discloses a device for removing residual paste from the saw cut of wet plates. The device includes a frame, a conveying device, a pressure roller, and a cutter. By setting the pressure roller and cleaning brush in the rolling cutting process, the residual paste at the saw cut of the electrode plate after cutting is cleaned.

[0005] However, this solution can only clean excess lead paste at the saw cut location and cannot treat the moisture-containing lead paste layer that overflows onto the surface of the coated paper during the tumbling process, forming an arc-shaped water film. When the receiving mechanism stacks the single wet electrode plates after tumbling and slitting one by one, under the stacking pressure, the moisture-containing lead paste layers on the surfaces of adjacent electrode plates' coated paper come into contact with each other and adhere. As the number of stacked layers increases and the time extends, the adhesion gradually intensifies, eventually leading to irreversible adhesion between the electrode plates. Adhesive electrode plates are difficult to separate during subsequent curing, drying, and slitting processes. Forced separation will cause electrode plate damage and lead paste detachment, affecting product quality and yield.

[0006] Therefore, how to effectively remove excess moisture and moisture-containing lead paste layer that overflows from the surface of the wet electrode coating paper due to rolling and squeezing after the rolling and slitting process and before stacking the sheets, so as to avoid adhesion after the electrode is stacked, is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0007] This invention provides a process for collecting electrode plates without surface drying after continuous coating, in order to solve the technical problem in the prior art that the moisture-containing lead paste layer overflowing from the surface of the wet electrode plate coating paper due to rolling and extrusion cannot be removed, resulting in the adhesion of the electrode plates after stacking.

[0008] To solve the above problems, the electrode collection process for continuous coating without surface drying provided by the present invention adopts the following technical solution:

[0009] A process for collecting electrode plates without surface drying after continuous coating includes the following steps: S1: The surface-dry continuous wet electrode strip covered with film paper is continuously conveyed along the conveying direction. During the conveying process, the surface-dry continuous wet electrode strip is rolled and cut to obtain multiple independent wet electrode plates. S2: The wet electrode plate is conveyed to the residual paste treatment station, where the surface of the wet electrode plate coating paper is treated to remove water and paste, removing free water and moisture-containing lead paste layer from the surface of the coating paper, resulting in a clean electrode plate. S3: Stack the electrode plates obtained after the residual paste treatment one by one to form a plate stack.

[0010] The beneficial effects of the electrode collection process for continuous coating without surface drying provided by this invention are: In step S1, the continuous wet electrode strip with no surface dryness covered by the film paper is continuously conveyed along the conveying direction, and it is rolled and cut during the conveying process to obtain multiple independent wet electrode plates. This completes the forming process from the continuous wet electrode strip to multiple independent wet electrode plates, and at the same time defines the specific processing object for subsequent processing steps - a single wet electrode plate with a moisture-containing lead paste layer attached to the surface of the film paper after rolling and cutting.

[0011] In step S2, before stacking the wet electrode plates into a stack, the wet electrode plates obtained after tumbling and slitting are first transported to the residual paste processing station. The surface of the coating paper of the wet electrode plates is treated to remove water and paste, changing the original process of directly stacking the plates after tumbling and slitting. During the water and paste removal process, two types of media that cause electrode plate adhesion can be removed simultaneously: one is the moisture-containing lead paste layer that overflows from the tumbling and slitting process, and the other is the free water on the surface of the coating paper. Lead paste has strong adhesion and easily adheres to adjacent electrode plates. Free water softens the lead paste and strengthens its adhesion. Before stacking, removing the moisture-containing lead paste layer and free water from the surface of the wet electrode plates results in clean electrode plates, which can effectively prevent adhesion between electrode plates after stacking.

[0012] In addition, the processing sequence of slitting before dewatering and degreasing ensures that the moisture-containing lead paste layer is fully exposed to the surface of the coating paper before being removed. This ensures that the moisture-containing lead paste layer that causes adhesion between adjacent plates can be effectively removed during the dewatering and degreasing process. If cleaning is performed before slitting, the slitting action will still cause lead paste to overflow again, and the purpose of effective removal cannot be achieved.

[0013] In step S3, the electrode plates, after residual paste treatment, are stacked one by one to form a stack. This ensures that the surface of the coating paper of the electrode plates entering the stacking step has been dehydrated and de-paste-removed, and there is no sticky water-containing lead paste residue. At this time, when the electrode plates are stacked one by one to form a stack, there is no sticky medium on the contact surface of the coating paper of adjacent electrode plates. Even if they are tightly bonded under stacking pressure, they will not stick together. This not only meets the production requirements for electrode plate stacking, storage, and transportation, but also avoids quality and production problems such as electrode plate damage, lead paste detachment, and material jamming in subsequent processes caused by adhesion, thereby improving production efficiency and product quality.

[0014] In summary, the present invention effectively solves the technical problem in the prior art that the moisture-containing lead paste layer overflowing from the surface of the wet electrode coating paper due to rolling and extrusion cannot be removed, resulting in the adhesion of the electrode plates after stacking.

[0015] Furthermore, in step S2, the free moisture and moisture-containing lead paste layer on the surface of the coated paper are removed by negative pressure adsorption on the upper and lower surfaces of the wet electrode plate, resulting in a clean electrode plate.

[0016] Beneficial Effects: Negative pressure adsorption, as a non-contact physical separation method, can separate and remove free moisture and moisture-containing lead paste layers adhering to the surface of the coated paper from the surface of the electrode plate without applying mechanical external force. During the slitting process, the squeezing action of the slitting blades does not act only on one side of the electrode plate, but rather the upper and lower blades shear and squeeze together. Lead paste may be squeezed out from the cutting edges of both the upper and lower surfaces of the electrode plate and adhere to the coated paper on both surfaces. Therefore, treating only one side of the electrode plate will result in the moisture-containing lead paste layer remaining on the surface of the coated paper on the other side, which will still cause adhesion during stacking. This application achieves simultaneous cleaning of the coated paper surfaces on both sides of the electrode plate by applying negative pressure adsorption to the upper and lower surfaces of the wet electrode plate, ensuring that the coated paper surfaces on both sides of the electrode plate are thoroughly cleaned, thereby effectively reducing the possibility of adhesion.

[0017] Negative pressure adsorption removes the moisture-containing lead paste layer from the surface of the coated paper, while also absorbing free moisture from the surface, keeping the coated paper dry. The insulating properties of the coated paper are fully utilized in a dry state; the dry, clean surface of the coated paper will not adhere to the surfaces of adjacent electrode plates under stacking pressure, further enhancing the anti-adhesion effect and ensuring reliable separation between the electrode plates after stacking.

[0018] In addition, during the negative pressure adsorption process, the negative pressure adsorption force has a certain fixing effect on the electrode plate. The electrode plate remains stable under the action of the adsorption force, which can prevent the electrode plate from shifting or slipping during the transfer process, thus improving the stability and reliability of the wafer collection process.

[0019] Furthermore, the negative pressure adsorption area at least covers the cut edge formed after the wet electrode plate is rolled and slit.

[0020] Beneficial effects: During the slitting process, the lead paste is squeezed out from the cutting edge under the shearing and extrusion action of the blade. Therefore, the moisture-containing lead paste layer adhering to the coated paper is mainly concentrated near the cutting edge, rather than being evenly distributed across the entire surface area of ​​the electrode plate. Setting the negative pressure adsorption area to at least cover the cutting edge, corresponding to the actual overflow location of the lead paste, allows for effective removal of the lead paste layer with a relatively small adsorption area.

[0021] Furthermore, in step S2, a vacuum adsorption conveyor is used to transport the wet electrode plate. The vacuum adsorption conveyor generates negative pressure adsorption force through adsorption pores to fix the position of the wet electrode plate and remove the free moisture and moisture-containing lead paste layer of the lower layer of film paper of the wet electrode plate.

[0022] Beneficial effects: On the one hand, after slitting and cutting, the electrode plates have changed from a continuous strip to independent individual pieces. The positional stability of these plates during transport directly affects the accuracy of subsequent stacking. If the plates shift or slide on the conveyor belt, the receiving claws may misalign during gripping, leading to uneven stacking or even damage to the plate edges. The vacuum adsorption conveyor uses the negative pressure generated by the adsorption pores to adhere the plates to the conveyor surface, ensuring they remain in a fixed position throughout transport, preventing shifting or tilting, thus providing a positioning basis for subsequent stacking.

[0023] On the other hand, while fixing the electrode plate, the negative pressure adsorption force also continuously exerts a suction effect on the surface of the coating paper under the electrode plate. Since the adsorption pores are in direct contact with the lower surface of the electrode plate, free moisture and moisture-containing lead paste layer are directly drawn into the pores under the negative pressure and discharged with the airflow. The suction path is short and the resistance is low, which can effectively remove the substances attached to the surface of the coating paper.

[0024] In addition, the vacuum adsorption conveyor operates continuously during the conveying process, and the plates are always under negative pressure from the moment they enter the conveyor until they leave it, providing sufficient processing time for dehydration and degreasing without the need for additional dwell or waiting time.

[0025] Furthermore, a negative pressure suction cup is provided above the vacuum adsorption conveyor to adsorb the free moisture and moisture-containing lead paste layer of the upper film paper of the wet electrode plate.

[0026] Beneficial effects: During the slitting process, the cutting and squeezing of the wet electrode plate by the blades occurs simultaneously from both above and below. Therefore, lead paste is not only squeezed out from the lower surface of the electrode plate, but also overflows from the cut edge of the upper surface and adheres to the coating paper. This application uses a negative pressure suction cup above the vacuum adsorption conveyor to apply suction to the upper surface of the electrode plate from above, which, in conjunction with the suction from below by the vacuum adsorption conveyor, allows the upper and lower coating papers of the electrode plate to be processed simultaneously as they pass through this station. This eliminates the need to flip the electrode plate or process it twice, ensuring both processing effectiveness and saving process time.

[0027] Furthermore, in step S1, the rolling cut includes horizontal cutting and vertical cutting: S11: Roll the strip of the continuous wet electrode strip without surface dryness laterally to form a transverse cut. S12: Perform longitudinal rolling cuts along the length of the non-drying continuous wet electrode strip to divide the transversely cut non-drying continuous wet electrode strip into multiple independent wet electrode plates.

[0028] Beneficial effects: The rolling slitting process is divided into two steps: transverse slitting and longitudinal slitting. During transverse slitting, the electrode plates are not completely severed; instead, transverse slits are first formed to ensure the continuous, surface-dry, continuous wet electrode plate strip remains continuous in the conveying direction, preventing it from scattering into individual wet electrode plates before entering the longitudinal cutter. After the transverse slits are formed, the longitudinal slitting further divides the plate into individual pieces along its length. At this point, the outline of each electrode plate is completely defined, resulting in accurate cutting positions and good dimensional consistency. If the transverse slitting were to cut directly, the subsequent longitudinal slitting would require processing multiple individual wet electrode plates simultaneously, making it easier for the positional relationships between the wet electrode plates to change and increasing the difficulty of alignment during longitudinal cutting.

[0029] Furthermore, in step S11, after transverse rolling, at least two rows of electrode strips extending along the conveying direction are formed on the non-surface-dry continuous wet electrode strip, and connecting blocks are formed between adjacent electrode strips and between the electrode strips and the side of the plate.

[0030] Beneficial effects: After the transverse roll cutting is completed, transverse cuts have been formed on the continuous wet electrode strip without surface drying, resulting in at least two columns of electrode strips extending along the conveying direction. Each electrode strip is cut into several segments in the length direction, but adjacent electrode strips and the electrode strips and the side of the plate are still connected together by connecting blocks, so that all the electrode strips are still a whole and will not be scattered or misaligned due to the presence of transverse cuts when they continue to be conveyed forward.

[0031] Furthermore, in step S12, the connecting block is removed by longitudinal rolling cut, so that the electrode strip is separated into multiple independent wet electrode plates.

[0032] Furthermore, in step S1, after obtaining multiple independent wet electrode plates, a single wet electrode plate is extracted and weighed to check whether its weight meets the standard.

[0033] Beneficial effects: On the one hand, after the continuous wet electrode strip without surface drying is slit into multiple independent wet electrode plates, the individual wet electrode plates are collected and weighed to obtain the actual weight of each wet electrode plate. Compared to weighing the unslit wet electrode strip without surface drying and then averaging the weights to obtain the weight of each wet electrode plate, the obtained weight data is more accurate, allowing for more precise selection of wet electrode plates that do not meet the weight requirements. On the other hand, by screening out the substandard wet electrode plates before receiving the sheets, since the plates have not yet undergone subsequent dehydration and degreasing treatments and stacking, they can be directly rejected without affecting the already stacked plates.

[0034] Furthermore, in step S3, the electrode plates obtained after dehydration and degreasing are picked up using a negative pressure adsorption method. After vertical lifting and planar translation, the electrode plates are aligned and placed in the set position on the tray. Then, the picking action is repeated to achieve orderly stacking of the electrode plates layer by layer.

[0035] Beneficial effects: After the wet electrode plate has undergone dehydration and degreasing treatment, although the free water and lead paste layer on the surface of the coated paper have been removed, the lead paste inside the electrode plate is still in a wet state, and the overall strength is not high. The electrode plate obtained after dehydration and degreasing treatment is picked up by negative pressure adsorption. There is no need to apply clamping force to the electrode plate. The adsorption force is evenly distributed on the surface of the electrode plate, and there will be no problem of local stress concentration. The electrode plate is not easy to deform or be damaged. Attached Figure Description

[0036] Figure 1 The flowchart is provided by the present invention for the electrode plate collection process with continuous coating and no surface drying. Figure 2 This is a cross-sectional view of the non-surface-drying continuous wet electrode strip in this invention; Figure 3 This is a schematic diagram showing the arrangement of the vacuum adsorption conveyor and negative pressure suction cup used in this invention.

[0037] Explanation of reference numerals in the attached figures: 1. Upper coating paper; 2. Upper lead paste layer; 3. Mesh plate layer; 4. Lower lead paste layer; 5. Lower coating paper; 6. Vacuum adsorption conveyor; 7. Vacuum cavity; 8. Negative pressure suction cup; 9. Wet electrode plate. Detailed Implementation

[0038] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0039] An embodiment of the electrode collection process for continuous coating without surface drying provided by the present invention: like Figure 1 As shown, the electrode collection process for continuously coated plates without surface drying includes the following steps: S1: The surface-dry continuous wet electrode strip covered with film paper is continuously conveyed along the conveying direction. During the conveying process, the surface-dry continuous wet electrode strip is rolled and cut to obtain multiple independent wet electrode plates. S2: The wet electrode plate is conveyed to the residual paste treatment station, where the surface of the wet electrode plate coating paper is treated to remove water and paste, removing free water and moisture-containing lead paste layer from the surface of the coating paper, resulting in a clean electrode plate. S3: Stack the electrode plates obtained after the residual paste treatment one by one to form a plate stack.

[0040] In this embodiment, in step S1, the non-surface-dried continuous wet electrode strip refers to a continuous strip electrode strip that has been continuously coated but has not undergone surface drying treatment, with both its upper and lower surfaces covered with coated paper. During the continuous conveying of the non-surface-dried continuous wet electrode strip along the conveying direction, it is rolled and cut to obtain multiple independent wet electrode plates 9.

[0041] like Figure 2 As shown, the non-surface-drying continuous wet electrode strip includes, from top to bottom, an upper coating paper 1, an upper lead paste layer 2, a mesh layer 3, a lower lead paste layer 4, and a lower coating paper 5.

[0042] In this embodiment, the rolling slitting includes transverse slitting and longitudinal slitting: S11: Roll the strip of the continuous wet electrode strip without surface dryness laterally to form a transverse cut. S12: Perform longitudinal rolling cuts along the length of the non-drying continuous wet electrode strip to divide the transversely cut non-drying continuous wet electrode strip into multiple independent wet electrode plates.

[0043] During transverse slitting, transverse rolling is performed along the width direction of the continuous wet electrode strip without surface dryness. That is, a shearing force is applied along the width direction of the continuous wet electrode strip without surface dryness to form transverse cuts. The cutting spacing of the transverse rolling is set according to the width dimension of the target electrode plate. After transverse rolling, at least two rows of electrode strips extending along the conveying direction are formed on the continuous wet electrode strip without surface dryness. Connecting blocks are retained between adjacent electrode strips and between the electrode strips and the side of the plate to keep the entire continuous wet electrode strip without surface dryness in a continuous state and avoid scattering and misalignment during transportation to the longitudinal rolling cutting station.

[0044] Subsequently, the wet electrode strip that has completed the transverse rolling cut continues to move forward with the conveyor line into the longitudinal rolling cut station. During the longitudinal rolling cut, a shearing force is applied along the length of the continuous wet electrode strip without surface dryness (i.e., electrode strip), cutting off the connecting blocks between the electrode strips, separating adjacent electrode strips, and separating the electrode strips from the sides of the plate. Each electrode strip is separated into multiple independent wet electrode plates 9. The cutting position of the longitudinal rolling cut is set according to the length dimension of the target electrode plate.

[0045] In this embodiment, after the rolling and slitting is completed, a single wet electrode plate 9 is extracted for weighing and testing. The measured weight data is compared with the preset weight range, and electrode plates that do not meet the weight standard are screened out and removed to ensure that the electrode plates entering the subsequent processes meet the weight requirements and to prevent unqualified products from entering the stacking stage.

[0046] In other embodiments, after the rolling and slitting is completed, the weight of each wet electrode plate 9 is weighed and compared with the preset weight range. Electrode plates that do not meet the weight requirements are screened out and removed to ensure that the electrode plates entering the subsequent processes meet the weight requirements and to prevent unqualified products from entering the stacking process.

[0047] In this embodiment, in step S2, negative pressure adsorption is applied to the upper and lower surfaces of the wet electrode plate 9 to remove free moisture and moisture-containing lead paste from the surface of the coated paper, resulting in a clean electrode plate. The area subjected to negative pressure adsorption at least covers the cut edges formed after the wet electrode plate 9 is rolled and slit.

[0048] In other embodiments, the dewatering and desizing process can also be carried out in other ways, such as using a sponge roller to roll the free water and the moisture-containing lead paste layer onto the sponge roller, or using a scraper to scrape the moisture-containing lead paste layer off the surface of the coated paper; the negative pressure adsorption area can also cover the entire surface of the wet electrode plate 9.

[0049] In this embodiment, in step S2, a vacuum adsorption conveyor 6 is used to transport the wet electrode plate 9. For example... Figure 3 As shown, in this embodiment, the vacuum adsorption conveyor 6 has a vacuum cavity 7, and its conveying surface is provided with multiple adsorption pores. Each adsorption pore is connected to the vacuum cavity 7. The negative pressure adsorption force generated by the adsorption pores is used to fix the position of the wet electrode plate 9 and to absorb the free water and moisture-containing lead paste on the lower coating paper 5. The absorbed free water and moisture-containing lead paste are discharged into the vacuum cavity 7.

[0050] In other embodiments, the dehydration and degreasing treatment of the lower coating paper 5 can also be achieved by negative pressure suction nozzles set on both sides of the conveyor belt. The suction end of the negative pressure suction nozzle extends to the cutting edge of the lower surface of the wet electrode plate 9 to perform point-to-point adsorption on the cutting edge position of the lower coating paper 5.

[0051] like Figure 3As shown, in this embodiment, a negative pressure suction cup 8 is provided above the vacuum adsorption conveyor 6, which adsorbs free water and moisture-containing lead paste layer on the coated paper 1.

[0052] In other embodiments, the dehydration and degreasing treatment of the upper coating paper 1 can also be achieved by a negative pressure adsorption chamber set above the conveyor belt. The lower surface of the negative pressure adsorption chamber is provided with multiple adsorption holes, which are distributed at the corresponding cutting edges of the wet electrode plate 9. The negative pressure adsorption chamber is connected to an external vacuum pump, and negative pressure adsorption force is applied to the cutting edges of the upper coating paper 1 of the wet electrode plate 9 through the adsorption holes.

[0053] In this embodiment, in step S3, the electrode plates obtained after dehydration and degreasing are picked up by negative pressure adsorption. After vertical lifting and planar translation, the electrode plates are aligned and placed in the set position on the tray. Then, the picking action is repeated to achieve orderly stacking of the electrode plates layer by layer.

[0054] In other embodiments, the electrode stacking can also be performed in other ways, such as using mechanical grippers to pick up the electrode from both sides, with flexible pads at the gripping ends of the grippers to avoid damage to the electrode. Alternatively, in other embodiments, the electrode stacking can also be performed using a pusher plate, that is, pushing the electrode from the conveyor belt surface onto the tray using a pusher plate. Alternatively, in other embodiments, the electrode stacking can also be performed using a roller conveyor, that is, transferring the electrode from the conveyor belt to the tray using rollers, with the roller surface covered with flexible material to avoid damage to the electrode.

[0055] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "back," "left," "right," "inner," and "outer," which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings of this specification and should not be understood or interpreted as limiting the present invention.

[0056] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A process for collecting electrode plates without surface drying after continuous coating, characterized in that, Includes the following steps: S1: The surface-dry continuous wet electrode strip covered with film paper is continuously conveyed along the conveying direction. During the conveying process, the surface-dry continuous wet electrode strip is rolled and cut to obtain multiple independent wet electrode plates. S2: The wet electrode plate is conveyed to the residual paste processing station, where the surface of the wet electrode plate coating paper is treated to remove water and paste, removing free water and moisture-containing lead paste layer from the surface of the coating paper, resulting in a clean electrode plate. S3: Stack the electrode plates obtained after the residual paste treatment one by one to form a plate stack.

2. The electrode collection process for continuous coating without surface drying according to claim 1, characterized in that, In step S2, the free moisture and moisture-containing lead paste layer on the surface of the coated paper are removed by negative pressure adsorption on the upper and lower surfaces of the wet electrode plate, resulting in a clean electrode plate.

3. The electrode collection process for continuous coating without surface drying according to claim 2, characterized in that, The negative pressure adsorption area at least covers the cut edge formed after the wet electrode plate is rolled and slit.

4. The electrode collection process for continuous coating without surface drying according to claim 2 or 3, characterized in that, In step S2, a vacuum adsorption conveyor is used to transport the wet electrode plate. The vacuum adsorption conveyor generates negative pressure adsorption force through adsorption pores to fix the position of the wet electrode plate and remove the free moisture and moisture-containing lead paste layer of the lower coating paper of the wet electrode plate.

5. The electrode collection process for continuous coating without surface drying according to claim 4, characterized in that, The vacuum adsorption conveyor is equipped with a negative pressure suction cup above it, which adsorbs the free moisture and moisture-containing lead paste layer of the upper film paper on the wet electrode plate.

6. The electrode collection process for continuous coating without surface drying according to any one of claims 1 to 3, characterized in that, In step S1, the rolling cut includes horizontal cutting and vertical cutting: S11: Roll the strip of the continuous wet electrode strip without surface dryness laterally to form a transverse cut. S12: Perform longitudinal rolling cuts along the length of the non-drying continuous wet electrode strip to divide the transversely cut non-drying continuous wet electrode strip into multiple independent wet electrode plates.

7. The electrode collection process for continuous coating without surface drying according to claim 6, characterized in that, In step S11, after transverse rolling, at least two rows of electrode strips extending along the conveying direction are formed on the non-surface-dry continuous wet electrode strip, and connecting blocks are formed between adjacent electrode strips and between the electrode strips and the side of the plate.

8. The electrode collection process for continuous coating without surface drying according to claim 7, characterized in that, In step S12, the connecting block is removed by longitudinal rolling cut, so that the electrode strip is separated into multiple independent wet electrode plates.

9. The electrode collection process for continuous coating without surface drying according to any one of claims 1 to 3, characterized in that, In step S1, after obtaining multiple independent wet electrode plates, a single wet electrode plate is extracted and weighed to check whether its weight meets the standard.

10. The electrode collection process for continuous coating without surface drying according to any one of claims 1 to 3, characterized in that, In step S3, the electrode plates obtained after dehydration and degreasing are picked up by negative pressure adsorption. After vertical lifting and planar translation, the electrode plates are aligned and placed in the set position on the tray. Then, the picking action is repeated to achieve orderly stacking of the electrode plates layer by layer.

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