A method for coating conductive adhesive onto a current collector via an array

Abstract

A method for coating conductive adhesive onto a current collector electrode socket array employs a coating device including a coating mechanism and a purging mechanism to coat the current collector electrode socket array. First, a control plate is placed at one end of the electrode socket. Then, adhesive is applied to the other end and purged. The coating and purging processes are repeated for multiple electrode sockets by changing the coating parameters. The coating rate of conductive adhesive on the socket walls and the size of the conductive adhesive spots falling on the control plate are measured to calibrate the coating parameters. The calibrated coating parameters are then used to complete the coating of the electrode socket array. This method enables automated coating of the current collector electrode socket array, effectively improving the coating efficiency and effect of conductive adhesive.

Description

Technical Field

[0001] This invention belongs to the field of carbon dioxide catalytic reduction, and specifically relates to a method for coating conductive adhesive onto a current collector via a small aperture array. Background Technology

[0002] To address climate change, carbon neutrality and related technologies have become increasingly popular topics in the industrial sector. Utilizing renewable energy to convert carbon dioxide generated by high-carbon-emission industries such as steel and chemicals into usable fuels or industrial feedstocks through electrocatalytic reactions is considered one of the most promising technological routes for reducing carbon emissions and achieving carbon neutrality. Electrolysis devices are the core components for realizing the electrocatalytic reaction of carbon dioxide. Existing electrolysis devices typically include a porous current collector and an array of hollow electrodes arranged on the current collector. The hollow electrodes are arranged in an array and inserted into the pores of the current collector, bonded together with conductive adhesive. The quality of the conductive adhesive coating directly affects the connection and conductivity between the hollow electrodes and the current collector. Currently, the coating of conductive adhesive into the pores of the current collector is usually done manually, resulting in low coating efficiency and poor coating quality, which is detrimental to the industrial-scale mass production of electrolysis devices. Therefore, providing a conductive adhesive coating method for the small-pore array of the current collector, which is convenient for automated production, is of positive significance for improving the efficiency and quality of conductive adhesive coating. Summary of the Invention

[0003] The purpose of this invention is to provide a method for coating conductive adhesive onto a current collector via a small aperture array, thereby improving the efficiency and quality of conductive adhesive coating.

[0004] According to an embodiment of the present invention, a method for coating conductive adhesive onto a current collector via an array is provided. The method includes a current collector and a coating apparatus. The current collector includes an array of electrode sockets, the electrode socket array comprising a plurality of electrode sockets penetrating the wall of the current collector. The coating apparatus includes a coating mechanism and a purging mechanism. The method for coating conductive adhesive onto a current collector via an array includes the following steps:

[0005] a) A reference plate is provided at one end of the electrode socket, and a certain distance is maintained between the reference plate and the electrode socket;

[0006] b) Apply a certain amount of conductive adhesive to the other end of the electrode socket using the adhesive coating mechanism, and then use the purging mechanism to purge with certain air blowing parameters.

[0007] c) At another electrode socket, change the amount of conductive adhesive applied by the coating mechanism and the air blowing parameters of the purging mechanism, and repeat step b) until each of the given combinations of coating amounts and air blowing parameters is used for at least one electrode socket.

[0008] d) Detect the conductive adhesive coating rate on the inner peripheral sidewall of the electrode socket and the size of the conductive adhesive spot on the control plate respectively, and calibrate the coating parameters based on the conductive adhesive coating rate and the size of the conductive adhesive spot;

[0009] e) Apply adhesive to the electrode socket array according to the adhesive application parameters. The above method can accurately and quickly calibrate the adhesive application parameters of the electrode sockets, which is convenient for automated mass production, thereby effectively improving the coating efficiency of the current collector conductive adhesive and improving the coating effect.

[0010] Furthermore, in some embodiments, a gap of 0.2mm-0.3mm is provided between the end of the control plate and the end of the electrode socket. This gap allows the purge airflow to escape, preventing the control plate from completely blocking the electrode socket and causing backflow that could affect the coating effect.

[0011] Furthermore, in some embodiments, in step b), the method for changing the amount of conductive adhesive applied by the coating mechanism is to adjust the dispensing time of the coating mechanism.

[0012] Furthermore, in some embodiments, in step b), the blowing parameters include purging time and / or air flow rate.

[0013] Furthermore, in some embodiments, in step d), the method for detecting the conductive adhesive coating rate is to insert a probe into the electrode socket and remove it, and measure the conductive adhesive area coverage of the probe surface.

[0014] Furthermore, in some embodiments, the standard for calibrating the coating parameters in step d) is that the conductive adhesive coating rate is 20%-50%, and the conductive adhesive spot size is 60%-140% of the electrode socket diameter.

[0015] Furthermore, in some embodiments, the adhesive application device further includes a controller and a vision recognition mechanism. The vision recognition mechanism is able to identify the electrode sockets in the electrode socket array and locate the coordinates of each electrode socket. The controller controls the adhesive application mechanism and the purging mechanism to complete the adhesive application one by one according to the coordinates of the electrode sockets identified by the vision recognition mechanism.

[0016] Furthermore, in some embodiments, in step e), the visual recognition mechanism records the adhesive application process and includes step f): checking the adhesive application completion status of each electrode socket according to the recording results of the visual recognition mechanism and performing additional adhesive application.

[0017] Furthermore, in some embodiments, the adhesive applicator further includes an auxiliary lighting device that provides auxiliary lighting to the current collector, and the brightness and position of the auxiliary lighting device are adjustable.

[0018] Furthermore, in some embodiments, the adhesive coating mechanism further includes a temperature control device that maintains a constant temperature for the conductive adhesive. Attached Figure Description

[0019] Figure 1 This is a flowchart of a conductive adhesive coating method in one embodiment;

[0020] Figure 2 This is a schematic diagram of the current collector and control plate structure in one embodiment;

[0021] Figure 3 This is a schematic diagram of the adhesive application device in one embodiment.

[0022] Meaning of reference numerals in the attached drawings: 1-Current collector; 11-Electrode socket; 12-Reference plate; 2-Glue application mechanism; 21-Air inlet; 22-Glue application tank; 23-Glue quantity control valve; 24-Temperature control device; 25-Glue application head; 3-Purge mechanism; 31-Air volume control valve; 32-Air inlet; 33-Air outlet; 4-Industrial camera.

[0023] The purpose of the above-described drawings is to provide a detailed description of the present invention so that those skilled in the art can understand the technical concept of the invention, and not to limit the invention. For the sake of brevity, the structures related to the technical features of the present invention are only schematically shown in the above-described drawings, and the complete structure and all details are not drawn to scale. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0025] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment herein. The phrase appearing in various places in the specification does not necessarily refer to the same embodiment, nor is it limited to mutually exclusive, independent, or alternative embodiments. Those skilled in the art will understand that the embodiments herein can be combined with other embodiments without causing structural conflicts.

[0026] In this description, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," etc., should be interpreted broadly, referring to movable connections, fixed connections, or integration. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this application based on the specific circumstances.

[0027] In this description, terms such as "upper," "lower," "left," "right," "lateral," "longitudinal," "height," "length," and "width," which indicate orientation or positional relationships, are intended to accurately describe the embodiments and simplify the description, rather than limiting the parts or structures involved to have a specific orientation, or to be installed or operated in a specific orientation, and should not be construed as limiting the embodiments in this document.

[0028] In this description, terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating relative importance or limiting the number, specific order, or primary / secondary relationship of the described technical features. In this description, "multiple" means at least two.

[0029] Embodiments of the present invention provide a method for coating conductive adhesive onto a current collector, facilitating automated coating of conductive adhesive onto a current collector via an array of pinholes. The current collector structure is as follows: Figure 2 As shown, the current collector 1 is a semi-arc-shaped thin-walled structure made of stainless steel. An array of evenly distributed electrode insertion holes 11 is drilled at the top of the arc of the current collector 1. The finished electrolysis device is manufactured by inserting hollow electrodes (not shown) into the electrode insertion holes 11 of the current collector 1. The hollow electrodes are fixed in the electrode insertion holes 11 with conductive adhesive. To improve the coating efficiency and quality of the conductive adhesive, an automatic adhesive coating device is used in this embodiment. The structure of the automatic adhesive coating device is as follows... Figure 3 As shown, it includes an adhesive coating structure 2 and a purging mechanism 3.

[0030] The conductive adhesive coating method includes the following steps:

[0031] First, a conformal control plate 12 is inserted into the arc-shaped inner side of the current collector 1. The radius of the control plate 12 is slightly smaller than the inner diameter of the current collector 1, creating a certain gap between the outer surface of the control plate 12 and the inner wall of the current collector 1. A certain amount of conductive adhesive is applied to the outer opening of the electrode socket 11 using the adhesive application mechanism 2, and then blown into the electrode socket 11 using the blowing mechanism 3. The airflow from the blowing mechanism 3 carries the conductive adhesive onto the inner wall of the electrode socket 11, and partially onto the surface of the control plate 12. The control plate 12 can be made of metal or cardboard. In a preferred embodiment, a certain gap is maintained between the control plate 12 and the inner wall of the current collector 1, forming a 0.2mm-0.3mm gap between the inner end of the electrode socket 11 and the control plate, allowing the blowing airflow to flow out through this gap, thus preventing the airflow from backflowing and carrying the conductive adhesive out of the electrode socket 11.

[0032] Next, at another electrode socket 11, the amount of conductive adhesive applied by the adhesive applicator 2 at the opening of the electrode socket 11 and the blowing parameters are changed. The adhesive dispensing and blowing process is repeated until the amount of conductive adhesive applied and the blowing parameters cover the expected parameter range. The expected parameter range is provided by a given combination of conductive adhesive applied and blowing parameters. Specifically, the process of determining this given combination of adhesive applied and blowing parameters can be designed using orthogonal experimental design, or it can be exhaustive by performing an equal or variable step size within a certain range. In a preferred embodiment, the amount of conductive adhesive applied is controlled by adjusting the dispensing time (dispensing delay) of the adhesive applicator 2. In a preferred embodiment, the blowing parameters include the blowing time (blowing delay) and the air flow rate. In some embodiments, adjusting the blowing parameters can change one of the blowing time and the air flow rate individually or both parameters simultaneously.

[0033] Subsequently, the control plate 12 is removed, and the conductive adhesive coating rate on the inner wall of each electrode socket 11 and the size of the conductive adhesive spots falling on the control plate 12 are measured to calibrate the coating parameters. In a preferred embodiment, the conductive adhesive coating rate is measured by inserting a probe into the electrode socket 11 and judging the distribution of conductive adhesive on the inner wall of the electrode socket 11 by the distribution of conductive adhesive on the probe surface. In some embodiments, the probe can be a hollow electrode or a specially manufactured detection probe. In some embodiments, the method of detecting the conductive adhesive coating rate using a probe is as follows: insert the probe into the electrode socket 11, making the probe circumferentially contact the inner wall of the electrode socket while avoiding the probe from rolling, remove the probe, and measure the percentage of the area of ​​the probe surface with conductive adhesive attached to the portion inserted into the electrode socket 11. In a preferred embodiment, the calibration standard for the adhesive coating parameters is a conductive adhesive coating rate of 20%-50% (i.e., 20%-50% of the area where the probe is inserted into the electrode socket 11 is covered with conductive adhesive). The diameter of the conductive adhesive spot on the control plate is 60%-140% of the diameter of the electrode socket 11. The conductive adhesive coating amount and purging parameters that meet the above calibration standards will be used as the adhesive coating parameters for batch coating. The purpose of calibration is to ensure that the conductive adhesive coating state meets the manufacturing standards of the current collector, avoiding poor conductivity between the electrode and the current collector 1 due to insufficient conductive adhesive, and avoiding blockage of the electrode port due to excessive conductive adhesive.

[0034] Finally, the electrode socket 11 array is coated with adhesive using the calibrated coating parameters. In some embodiments, when the current collector 1 used for calibration and the current collector 1 used in production are the same component, the step of removing the conductive adhesive applied during the calibration process is also included.

[0035] In a preferred embodiment, the coating device further includes a controller (not shown) and a vision recognition mechanism. In some embodiments, the vision recognition structure may be an industrial camera 4. Before coating begins, the industrial camera 4 first takes a picture of the current collector 1, and the controller identifies all electrode sockets 11 on the current collector 1, converting the coordinates in the image into coordinates in three-dimensional space. The controller then instructs the coating mechanism 2 and the blowing mechanism 3 to complete the coating operation at the specified coordinates. In a preferred embodiment, during the coating process, the industrial camera 4 records the working process of the coating mechanism 2 and the blowing mechanism 3, and after coating is completed, identifies electrode sockets 11 that have failed the coating process based on the recorded results, and applies additional adhesive to these electrode sockets 11. Failures in coating include: missed coating, misalignment of the dispensing position, and obvious residual conductive adhesive at the end of the electrode socket 11 after blowing. In some embodiments, the reason for missed coating or misaligned dispensing position is that shadows or reflections on the surface of the current collector 1 prevent the electrode socket 11 from being accurately identified by the industrial camera 4. In a preferred embodiment, the coating device is also provided with an auxiliary lighting device, which extends along the length of the current collector 1. The auxiliary lighting device can adaptively adjust its height or brightness according to the size of the current collector 1 and the distribution position of the electrode socket 11 to improve the visibility of the electrode socket 11 in the field of view of the industrial camera 4. In different embodiments, drive motors can be provided on the coating mechanism 2 and the blowing mechanism 3, and the coating mechanism 2 and the blowing mechanism 3 can be moved to a designated coordinate to complete the coating; alternatively, the drive motors can be provided on a fixture that fixes the current collector 1, and the coating can be completed by moving the current collector 1.

[0036] In an optional embodiment, the coating mechanism 2 includes a coating tank 22 for storing conductive adhesive. The coating tank 22 is provided with an air inlet 21, which vents air into the coating tank 22 to create positive pressure inside the coating tank 22. The coating tank 22 outputs conductive adhesive through an adhesive quantity control valve 23. When the ambient temperature is low and the conductive adhesive has high viscosity (e.g., conductive silver paste at room temperature of 25000±5000 mPa·s), the conductive adhesive may clog the adhesive quantity control valve 23, preventing adhesive from being dispensed. In a preferred embodiment, the coating tank 22 is provided with a temperature control device 24. The temperature control device 24 can heat the conductive adhesive to 80±10℃ and maintain a constant temperature, avoiding adhesive clogging while reducing the impact of temperature changes on the adhesive quantity and improving coating accuracy. In other embodiments, the temperature control device 24 has a temperature range of 20℃-100℃.

[0037] In the first preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The adhesive application mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a movable worktable (not shown). The worktable is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders, and can move along the X-axis (axial direction of current collector 1), Y-axis (width direction of current collector 1), and Z-axis (height direction) under the action of each cylinder. The movement accuracy of the electric cylinders is ±0.05mm. Current collector 1 is made of stainless steel, with an outer diameter of 13mm, an inner diameter of 9mm, and a total length of 190mm. The surface of the current collector is drilled with an array of 270 electrode insertion holes 11, arranged in three rows. Each row has 90 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are 0.5mm diameter circular holes. The distance between the array and one end of the current collector 1 along its length is 10mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified using the industrial camera 4. The air inlet 21 is opened to fill the adhesive can 22 with air, while the conductive adhesive is heated to 70°C using the temperature control device 24. A stainless steel reference plate 12 is inserted into the current collector 1, the air flow control valve 31 is adjusted to the given air flow rate, and the air inlet 32 ​​is opened. The adhesive volume control valve 23 is set to vary between 50ms and 150ms, and the air flow control valve 31 is set to vary between 100ms and 200ms. Adhesive application tests are conducted in 50ms increments. First, the adhesive application mechanism 2 applies adhesive to the end of the electrode socket 11, and then the blowing mechanism blows air into the electrode socket 11 through the air outlet 33. Conductive adhesive was blown into the electrode socket 11. After the test covered all target parameters, the control plate 12 was removed, and a hollow electrode was inserted into the coated electrode socket 11 as a probe to check the coating rate of the conductive adhesive. It was measured that when the adhesive ejection delay was 100ms and the air ejection delay was 200ms, the conductive adhesive coating rate was about 50%, and the diameter of the conductive adhesive spot on the control plate 12 was 0.5mm, which met the calibration standard. The coating parameters were determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 was removed, and conductive adhesive was applied to the electrode socket 11 one by one according to the calibration parameters. The coating process was recorded using an industrial camera 4. After the coating was completed, the recording results of the industrial camera 4 were checked, and the electrode socket 11 that was missed was recoated.

[0038] In the second preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The adhesive coating mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a fixed workbench. The current collector 1 is mounted on a movable positioning fixture, which is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders. Under the action of these cylinders, it can move along the X-axis (axial direction of the current collector 1), Y-axis (width direction of the current collector 1), and Z-axis (height direction), with a movement accuracy of ±0.05mm. The current collector 1 is made of stainless steel, with an outer diameter of 13mm, an inner diameter of 9mm, and a total length of 190mm. The surface of the current collector is drilled with an array of 270 electrode insertion holes 11, arranged in three rows. Each row has 90 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are 0.5mm diameter circular holes. The distance between the array and one end of the current collector 1 along its length is 10mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive application tank 22 with nitrogen, and the conductive adhesive is heated to 80°C using the temperature control device 24; a control plate 12 made of cardboard is inserted into the current collector 1, the air volume control valve 31 is adjusted to the given air flow rate, and the air inlet 32 ​​is opened; the adhesive volume control valve 23 is set to vary between 50ms and 150ms, and the air volume control valve 31 is set to vary between 100ms and 200ms, with adhesive application tests performed in 50ms increments. First, the adhesive application mechanism 2 applies adhesive to the end of the electrode socket 11, and then the blowing mechanism blows adhesive into the electrode socket 11 through the air outlet 33. Nitrogen gas was used to blow conductive adhesive into the electrode socket 11. After the test covered all target parameters, the control plate 12 was removed, and a hollow electrode was used as a probe to check the coating rate of the conductive adhesive in the coated electrode socket 11. It was measured that when the adhesive release delay was 100ms and the gas release delay was 200ms, the conductive adhesive coating rate was about 50%, and the diameter of the conductive adhesive spot on the control plate 12 was 0.9mm, which met the calibration standard. The coating parameters were determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 was removed, and conductive adhesive was applied to each electrode socket 11 one by one according to the calibration parameters. The coating process was recorded using an industrial camera 4. After the coating was completed, the recording results of the industrial camera 4 were checked, and the electrode sockets 11 that were missed were recoated with adhesive.

[0039] In the third preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The adhesive coating mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a movable worktable. The worktable is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders, and can move along the X-axis (axial direction of current collector 1), Y-axis (width direction of current collector 1), and Z-axis (height direction) under the action of each cylinder. The movement accuracy of the electric cylinders is ±0.05mm. Current collector 1 is made of stainless steel, with an outer diameter of 13mm, an inner diameter of 9mm, and a total length of 190mm. The surface of the current collector is drilled with an array of 270 electrode insertion holes 11, arranged in three rows. Each row has 90 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are 0.5mm diameter circular holes. The distance between the array and one end of the current collector 1 along its length is 10mm. The coating process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the coating tank 22 with argon gas, and the conductive adhesive is heated to 80°C using the temperature control device 24; a stainless steel reference plate 12 is inserted into the current collector 1, the gas flow control valve 31 is adjusted to the given gas flow rate, and the air inlet 32 ​​is opened; the adhesive volume control valve 23 is set to vary between 50ms and 150ms, and the gas flow control valve 31 is set to vary between 100ms and 200ms, with a coating test in 10ms increments. First, the coating mechanism 2 applies adhesive to the end of the electrode socket 11, and then the purging mechanism blows argon gas into the electrode socket 11 through the air outlet 33. Conductive adhesive was blown into the electrode socket 11. After the test covered all target parameters, the control plate 12 was removed, and a hollow electrode was inserted into the coated electrode socket 11 as a probe to check the coating rate of the conductive adhesive. It was measured that when the adhesive ejection delay was 100ms and the air ejection delay was 150ms, the conductive adhesive coating rate was about 20%, and the diameter of the conductive adhesive spot on the control plate 12 was 0.5mm, which met the calibration standard. The coating parameters were determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 was removed, and conductive adhesive was applied to the electrode socket 11 one by one according to the calibration parameters. The coating process was recorded using an industrial camera 4. After the coating was completed, the recording results of the industrial camera 4 were checked, and the electrode socket 11 that was missed was recoated. In contrast, when the adhesive dispensing delay was 60ms and the air dispensing delay was 200ms, no spots were formed on the control plate 12, the conductive adhesive coating rate was less than 20%, and the electrodes could not be effectively connected; when the adhesive dispensing delay was 100ms and the air dispensing delay was 200ms, the diameter of the conductive adhesive spots on the control plate 12 was less than 0.3mm, the conductive adhesive coating rate was about 20%, and the electrodes could not be effectively connected; when the adhesive dispensing delay was 150ms and the air dispensing delay was 200ms, the diameter of the conductive adhesive spots was greater than 1mm, the conductive adhesive coating rate was greater than 50%, and the hollow electrode was blocked by excessive conductive adhesive at the inserted end.

[0040] In the fourth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The adhesive coating mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a movable worktable. The worktable is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders, and can move along the X-axis (axial direction of current collector 1), Y-axis (width direction of current collector 1), and Z-axis (height direction) under the action of each cylinder. The movement accuracy of the electric cylinders is ±0.05mm. Current collector 1 is made of stainless steel, with an outer diameter of 13mm, an inner diameter of 4mm, and a total length of 383mm. The surface of the current collector is drilled with an array of 600 electrode insertion holes 11, arranged in three rows. Each row has 200 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are circular holes with a diameter of 0.8mm. The distance between the array and one end of the current collector 1 along its length is 10mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified using the industrial camera 4. The air inlet 21 is opened to fill the adhesive can 22 with air, while the conductive adhesive is heated to 80°C using the temperature control device 24. A stainless steel reference plate 12 is inserted into the current collector 1, and the air flow control valve 31 is adjusted to the given air flow rate. The air inlet 32 ​​is opened. The adhesive volume control valve 23 is set to vary between 50ms and 150ms, and the air flow control valve 31 is set to vary between 100ms and 200ms. Adhesive application tests are conducted in 50ms increments. First, the adhesive application mechanism 2 applies adhesive to the end of the electrode socket 11, and then the blowing mechanism blows air into the electrode socket 11 through the air outlet 33 to remove the adhesive. Conductive adhesive is blown into the electrode socket 11. After the test covers all target parameters, the control plate 12 is removed. At the same time, a hollow electrode is inserted into the coated electrode socket 11 as a probe to check the coating rate of the conductive adhesive. It is measured that when the adhesive discharge delay is 100ms and the air discharge delay is 200ms, the conductive adhesive coating rate is about 20%-50%. The diameter of the conductive adhesive spot on the control plate 12 is 0.5mm, which meets the calibration standard. The coating parameters are determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 is removed. Conductive adhesive is applied to the electrode socket 11 one by one according to the calibration parameters. The coating process is recorded using an industrial camera 4. After the coating is completed, the recording results of the industrial camera 4 are checked, and the electrode socket 11 that was missed is recoated.

[0041] In the fifth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The adhesive coating mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a movable worktable. The worktable is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders, and can move along the X-axis (axial direction of current collector 1), Y-axis (width direction of current collector 1), and Z-axis (height direction) under the action of each cylinder. The movement accuracy of the electric cylinders is ±0.05mm. Current collector 1 is made of stainless steel, with an outer diameter of 13mm, an inner diameter of 4mm, and a total length of 383mm. The surface of the current collector is drilled with an array of 600 electrode insertion holes 11, arranged in three rows. Each row has 200 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are circular holes with a diameter of 0.8mm. The distance between the array and one end of the current collector 1 along its length is 10mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified using the industrial camera 4. The air inlet 21 is opened, and nitrogen gas is introduced into the adhesive application tank 22. Simultaneously, the conductive adhesive is heated to 70°C using the temperature control device 24. A stainless steel reference plate 12 is inserted into the current collector 1, and the gas flow control valve 31 is adjusted to the given gas flow rate. The air inlet 32 ​​is opened. The adhesive volume control valve 23 is set to vary between 50ms and 150ms, and the gas flow control valve 31 is set to vary between 100ms and 200ms. Adhesive application tests are conducted in 50ms increments. First, the adhesive application mechanism 2 applies adhesive to the end of the electrode socket 11. Then, the purging mechanism blows nitrogen gas into the electrode socket 11 through the air outlet 33 to remove the adhesive. Conductive adhesive is blown into the electrode socket 11. After the test covers all target parameters, the control plate 12 is removed. At the same time, a hollow electrode is inserted into the coated electrode socket 11 as a probe to check the coating rate of the conductive adhesive. It is measured that when the adhesive discharge delay is 150ms and the air discharge delay is 200ms, the conductive adhesive coating rate is about 20%-50%. The diameter of the conductive adhesive spot on the control plate 12 is 0.5mm, which meets the calibration standard. The coating parameters are determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 is removed. Conductive adhesive is applied to the electrode socket 11 one by one according to the calibration parameters. The coating process is recorded using an industrial camera 4. After the coating is completed, the recording results of the industrial camera 4 are checked, and the electrode socket 11 that was missed is recoated.

[0042] In the sixth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The adhesive coating mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a movable worktable. The worktable is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders, and can move along the X-axis (axial direction of current collector 1), Y-axis (width direction of current collector 1), and Z-axis (height direction) under the action of each cylinder. The movement accuracy of the electric cylinders is ±0.05mm. Current collector 1 is made of stainless steel, with an outer diameter of 13mm, an inner diameter of 4mm, and a total length of 383mm. The surface of the current collector is drilled with an array of 600 electrode insertion holes 11, arranged in three rows. Each row has 200 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are circular holes with a diameter of 0.8mm. The distance between the array and one end of the current collector 1 along its length is 10mm. The coating process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified using the industrial camera 4. The air inlet 21 is opened, and argon gas is introduced into the coating tank 22. Simultaneously, the conductive adhesive is heated to 75°C using the temperature control device 24. A stainless steel reference plate 12 is inserted into the current collector 1, and the gas flow control valve 31 is adjusted to the given gas flow rate. The air inlet 32 ​​is opened. The adhesive volume control valve 23 is set to vary between 50ms and 150ms, and the gas flow control valve 31 is set to vary between 100ms and 200ms. Coating tests are conducted in 50ms increments. First, the coating mechanism 2 applies adhesive to the end of the electrode socket 11, and then the purging mechanism blows argon gas into the electrode socket 11 through the air outlet 33 to remove the adhesive. Conductive adhesive is blown into the electrode socket 11. After the test covers all target parameters, the control plate 12 is removed. At the same time, a hollow electrode is inserted into the coated electrode socket 11 as a probe to check the coating rate of the conductive adhesive. It is measured that when the adhesive discharge delay is 100ms and the air discharge delay is 150ms, the conductive adhesive coating rate is about 20%-50%. The diameter of the conductive adhesive spot on the control plate 12 is 0.5mm, which meets the calibration standard. The coating parameters are determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 is removed. Conductive adhesive is applied to the electrode socket 11 one by one according to the calibration parameters. The coating process is recorded using an industrial camera 4. After the coating is completed, the recording results of the industrial camera 4 are checked, and the electrode socket 11 that was missed is recoated.

[0043] In the seventh preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The adhesive coating mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a movable worktable. The worktable is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders, and can move along the X-axis (axial direction of current collector 1), Y-axis (width direction of current collector 1), and Z-axis (height direction) under the action of each cylinder. The movement accuracy of the electric cylinders is ±0.05mm. Current collector 1 is made of stainless steel, with an outer diameter of 25mm, an inner diameter of 5mm, and a total length of 475mm. The surface of the current collector is drilled with an array of 1000 electrode insertion holes 11, arranged in four rows. Each row has 250 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are circular holes with a diameter of 0.8mm. The distance between the array and one end of the current collector 1 along its length is 10mm. The coating process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified using the industrial camera 4. The air inlet 21 is opened to fill the coating tank 22 with air, while the conductive adhesive is heated to 80°C using the temperature control device 24. A stainless steel reference plate 12 is inserted into the current collector 1, the air flow control valve 31 is adjusted to the given air flow rate, and the air inlet 32 ​​is opened. The adhesive volume control valve 23 is set to vary between 50ms and 150ms, and the air flow control valve 31 is set to vary between 100ms and 200ms, with a coating test in 50ms increments. First, the coating mechanism 2 applies adhesive to the end of the electrode socket 11, and then the purging mechanism blows argon gas into the electrode socket 11 through the air outlet 33 to coat the conductive adhesive. The conductive adhesive is blown into the electrode socket 11. After the test covers all target parameters, the control plate 12 is removed. At the same time, a hollow electrode is used as a probe to insert into the coated electrode socket 11 to check the coating rate of the conductive adhesive. After measurement, when the adhesive discharge delay is 100ms and the air discharge delay is 200ms, the conductive adhesive coating rate is about 20%-50%. The diameter of the conductive adhesive spot on the control plate 12 is 0.5mm-1.0mm, which meets the calibration standard. The coating parameters are determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 is removed. The conductive adhesive is coated into the electrode socket 11 one by one according to the calibration parameters. The coating process is recorded using an industrial camera 4. After the coating is completed, the recording results of the industrial camera 4 are checked, and the electrode socket 11 that was missed is recoated.

[0044] In the eighth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The adhesive coating mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a movable worktable. The worktable is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders, and can move along the X-axis (axial direction of current collector 1), Y-axis (width direction of current collector 1), and Z-axis (height direction) under the action of each cylinder. The movement accuracy of the electric cylinders is ±0.05mm. Current collector 1 is made of stainless steel, with an outer diameter of 25mm, an inner diameter of 5mm, and a total length of 475mm. The surface of the current collector is drilled with an array of 1000 electrode insertion holes 11, arranged in four rows. Each row has 250 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are circular holes with a diameter of 0.8mm. The distance between the array and one end of the current collector 1 along its length is 10mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified using the industrial camera 4. The air inlet 21 is opened, and nitrogen gas is introduced into the adhesive application tank 22. Simultaneously, the conductive adhesive is heated to 85°C using the temperature control device 24. A stainless steel reference plate 12 is inserted into the current collector 1, and the gas flow control valve 31 is adjusted to the given gas flow rate. The air inlet 32 ​​is opened. The adhesive volume control valve 23 is set to vary between 50ms and 150ms, and the gas flow control valve 31 is set to vary between 100ms and 200ms. Adhesive application tests are conducted in 50ms increments. First, the adhesive application mechanism 2 applies adhesive to the end of the electrode socket 11. Then, the purging mechanism blows nitrogen gas into the electrode socket 11 through the air outlet 33 to apply the conductive adhesive. The conductive adhesive is blown into the electrode socket 11. After the test covers all target parameters, the control plate 12 is removed. At the same time, a hollow electrode is used as a probe to insert into the coated electrode socket 11 to check the coating rate of the conductive adhesive. After measurement, when the adhesive release delay is 150ms and the air release delay is 200ms, the conductive adhesive coating rate is about 20%-50%. The diameter of the conductive adhesive spot on the control plate 12 is 0.5mm-1.0mm, which meets the calibration standard. The coating parameters are determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 is removed. The conductive adhesive is coated into the electrode socket 11 one by one according to the calibration parameters. The coating process is recorded using an industrial camera 4. After the coating is completed, the recording results of the industrial camera 4 are checked, and the electrode socket 11 that was missed is recoated.

[0045] In the ninth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The adhesive coating mechanism 2, the blowing mechanism 3, and the industrial camera 4 are all mounted on a movable worktable. The worktable is connected to the device base via X-axis, Y-axis, and Z-axis electric cylinders, and can move along the X-axis (axial direction of current collector 1), Y-axis (width direction of current collector 1), and Z-axis (height direction) under the action of each cylinder. The movement accuracy of the electric cylinders is ±0.05mm. Current collector 1 is made of stainless steel, with an outer diameter of 25mm, an inner diameter of 5mm, and a total length of 475mm. The surface of the current collector is drilled with an array of 1000 electrode insertion holes 11, arranged in four rows. Each row has 250 electrode insertion holes 11 drilled along a straight line. The electrode insertion holes 11 are circular holes with a diameter of 0.8mm. The distance between the array and one end of the current collector 1 along its length is 10mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified using the industrial camera 4; the air inlet 21 is opened to fill the adhesive application tank 22 with argon gas, while the conductive adhesive is heated to 75°C using the temperature control device 24; a stainless steel reference plate 12 is inserted into the current collector 1, the gas flow control valve 31 is adjusted to the given gas flow rate, and the air inlet 32 ​​is opened; the adhesive volume control valve 23 is set to delay between 50ms and 150ms, and the gas flow control valve 31 is set to delay between 100ms and 150ms.

[0046] The coating test was conducted with a variation of 200ms and a step size of 50ms. First, the coating mechanism 2 applied adhesive to the end of the electrode socket 11. Then, the blowing mechanism blew argon gas into the electrode socket 11 through the air outlet 33 to blow the conductive adhesive into the electrode socket 11. After the test covered all target parameters, the control plate 12 was removed. At the same time, a hollow electrode was used as a probe to insert into the coated electrode socket 11 to check the coating rate of the conductive adhesive. The measurement showed that when the adhesive dispensing delay was 100ms and the air outlet delay was 150ms, the conductive adhesive coating rate was about 20%-50%. The diameter of the conductive adhesive spot on the control plate 12 was 0.5mm-1.0mm, which met the calibration standard. The coating parameters were determined as the formal parameters for batch coating. The test adhesive in the electrode socket 11 was removed, and the conductive adhesive was coated into the electrode socket 11 one by one according to the calibration parameters. The coating process was recorded by the industrial camera 4. After the coating was completed, the recording results of the industrial camera 4 were checked, and the electrode socket 11 that was missed was recoated.

[0047] In the tenth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 13 mm, an inner diameter of 9 mm, and a total length of 190 mm. The surface of the current collector is drilled with an array of 270 electrode holes 11, which consists of 3 rows. Each row has 90 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.5 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with air, and the conductive adhesive is heated to 70°C using the temperature control device 24; since the current collector specifications and conductive adhesive temperature are the same as in the first preferred embodiment, the adhesive application parameters calibrated in the first preferred embodiment are used, with an adhesive dispensing delay of 100ms and an air dispensing delay of 200ms. The conductive adhesive is applied to the electrode socket 11 one by one using the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-coated.

[0048] In the eleventh preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 13 mm, an inner diameter of 9 mm, and a total length of 190 mm. The surface of the current collector is drilled with an array of 270 electrode holes 11, which consists of 3 rows. Each row has 90 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.5 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with nitrogen, and the conductive adhesive is heated to 80°C using the temperature control device 24; since the current collector specifications and conductive adhesive temperature are the same as in the second preferred embodiment, the adhesive application parameters calibrated in the second preferred embodiment are used, with an adhesive dispensing delay of 150ms and an air dispensing delay of 200ms. The conductive adhesive is applied to each electrode socket 11 one by one using the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-coated.

[0049] In the twelfth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 13 mm, an inner diameter of 9 mm, and a total length of 190 mm. The surface of the current collector is drilled with an array of 270 electrode holes 11, which consists of 3 rows. Each row has 90 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.5 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive application tank 22 with argon gas, and the conductive adhesive is heated to 85°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 150ms for argon gas purging delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibration parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-applied with adhesive.

[0050] In the thirteenth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 19 mm, an inner diameter of 4 mm, and a total length of 383 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 3 rows. Each row has 200 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with air, and the conductive adhesive is heated to 70°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 200ms for air purging delay, and conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are touched up with adhesive.

[0051] In the fourteenth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 19 mm, an inner diameter of 4 mm, and a total length of 383 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 3 rows. Each row has 200 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with nitrogen, and the conductive adhesive is heated to 75°C using the temperature control device 24; the adhesive application parameters are calibrated to be 150ms for adhesive dispensing delay and 200ms for nitrogen purging exhaust delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibration parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are touched up with adhesive.

[0052] In the fifteenth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 19 mm, an inner diameter of 4 mm, and a total length of 383 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 3 rows. Each row has 200 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened, and argon gas is filled into the adhesive application tank 22, while the conductive adhesive is heated to 80°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 150ms for argon gas purging delay, and conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-coated.

[0053] In the sixteenth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 25 mm, an inner diameter of 5 mm, and a total length of 475 mm. The surface of the current collector is drilled with an array of 1000 electrode holes 11, which consists of 4 rows. Each row has 250 electrode holes 11 drilled along a straight line. The electrode holes 11 are round holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with air, and the conductive adhesive is heated to 80°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 200ms for air purging delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are touched up with adhesive.

[0054] In the seventeenth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 25 mm, an inner diameter of 5 mm, and a total length of 475 mm. The surface of the current collector is drilled with an array of 1000 electrode holes 11, which consists of 4 rows. Each row has 250 electrode holes 11 drilled along a straight line. The electrode holes 11 are round holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with nitrogen, and the conductive adhesive is heated to 85°C using the temperature control device 24; the adhesive application parameters are calibrated to be 150ms for adhesive dispensing delay and 200ms for nitrogen purging exhaust delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibration parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-applied with adhesive.

[0055] In the eighteenth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of silver alloy, with an outer diameter of 25 mm, an inner diameter of 5 mm, and a total length of 475 mm. The surface of the current collector is drilled with an array of 1000 electrode holes 11, which consists of 4 rows. Each row has 250 electrode holes 11 drilled along a straight line. The electrode holes 11 are round holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive application tank 22 with argon gas, and the conductive adhesive is heated to 90°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 150ms for argon gas purging delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-coated.

[0056] In the nineteenth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 13 mm, an inner diameter of 9 mm, and a total length of 190 mm. The surface of the current collector is drilled with an array of 270 electrode holes 11, which consists of 3 rows. Each row has 90 electrode holes 11 drilled along a straight line. The electrode holes 11 are round holes with a diameter of 0.5 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with air, and the conductive adhesive is heated to 70°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 200ms for air purging delay, and conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are touched up with adhesive.

[0057] In the twentieth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 13 mm, an inner diameter of 9 mm, and a total length of 190 mm. The surface of the current collector is drilled with an array of 270 electrode holes 11, which consists of 3 rows. Each row has 90 electrode holes 11 drilled along a straight line. The electrode holes 11 are round holes with a diameter of 0.5 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with nitrogen, and the conductive adhesive is heated to 70°C using the temperature control device 24; the adhesive application parameters are calibrated to be 150ms for adhesive dispensing delay and 200ms for nitrogen purging exhaust delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibration parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-applied with adhesive.

[0058] In the twenty-first preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 13 mm, an inner diameter of 9 mm, and a total length of 190 mm. The surface of the current collector is drilled with an array of 270 electrode holes 11, which consists of 3 rows. Each row has 90 electrode holes 11 drilled along a straight line. The electrode holes 11 are round holes with a diameter of 0.5 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened, and argon gas is filled into the adhesive application tank 22, while the conductive adhesive is heated to 80°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 150ms for argon gas purging delay, and conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-coated.

[0059] In the twenty-second preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 19 mm, an inner diameter of 4 mm, and a total length of 383 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 3 rows. Each row has 200 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with air, and the conductive adhesive is heated to 80°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 200ms for air purging delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are touched up with adhesive.

[0060] In the twenty-third preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 19 mm, an inner diameter of 4 mm, and a total length of 383 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 3 rows. Each row has 200 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with nitrogen, and the conductive adhesive is heated to 85°C using the temperature control device 24; the adhesive application parameters are calibrated to be 150ms for adhesive dispensing delay and 200ms for nitrogen purging exhaust delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibration parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-applied with adhesive.

[0061] In the twenty-fourth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 19 mm, an inner diameter of 4 mm, and a total length of 383 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 3 rows. Each row has 200 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive application tank 22 with argon gas, and the conductive adhesive is heated to 90°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 150ms for argon gas purging delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-coated.

[0062] In the twenty-fifth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 25 mm, an inner diameter of 5 mm, and a total length of 475 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 4 rows. Each row has 250 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with air, and the conductive adhesive is heated to 75°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 200ms for air purging delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibration parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are touched up with adhesive.

[0063] In the twenty-sixth preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 25 mm, an inner diameter of 5 mm, and a total length of 475 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 4 rows. Each row has 250 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive can 22 with nitrogen, and the conductive adhesive is heated to 80°C using the temperature control device 24; the adhesive application parameters are calibrated to be 150ms for adhesive dispensing delay and 200ms for nitrogen purging exhaust delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibrated parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-applied with adhesive.

[0064] In the twenty-seventh preferred embodiment, the following is adopted: Figure 3 The adhesive applicator shown is for example Figure 2 The current collector 1 shown is coated with conductive adhesive. The current collector 1 is made of copper alloy, with an outer diameter of 25 mm, an inner diameter of 5 mm, and a total length of 475 mm. The surface of the current collector is drilled with an array of 600 electrode holes 11, which consists of 4 rows. Each row has 250 electrode holes 11 drilled along a straight line. The electrode holes 11 are circular holes with a diameter of 0.8 mm. The distance between the array and one end of the current collector 1 along its length is 10 mm. The adhesive application process is as follows: First, the current collector 1 is fixed on the positioning fixture, and the coordinates of the electrode socket 11 are identified by taking pictures using the industrial camera 4; the air inlet 21 is opened to fill the adhesive application tank 22 with argon gas, and the conductive adhesive is heated to 85°C using the temperature control device 24; the adhesive application parameters are calibrated to be 100ms for adhesive dispensing delay and 150ms for argon gas purging delay. The conductive adhesive is applied to each electrode socket 11 one by one according to the calibration parameters, and the process is recorded using the industrial camera 4; after the adhesive application is completed, the recording results of the industrial camera 4 are checked, and the missing electrode sockets 11 are re-applied with adhesive.

[0065] The purpose of the above embodiments is to provide a detailed description of the present invention in conjunction with the accompanying drawings, so that those skilled in the art can understand the technical concept of the present invention. Within the scope of the present invention, optimization or equivalent substitution of the involved part structures or method steps, as well as combination of embodiments in different embodiments without causing structural and principle conflicts, all fall within the protection scope of the present invention.

Claims

1. A method for coating conductive adhesive onto a current collector via an array, characterized in that, A current collector and an adhesive coating apparatus are provided. The current collector includes an array of electrode sockets, the array of electrode sockets includes multiple electrode sockets, and the electrode sockets penetrate the wall of the current collector. The adhesive coating apparatus includes an adhesive coating mechanism and a blowing mechanism. The conductive adhesive coating method for the current collector's pinhole array includes the following steps: a) A reference plate is provided at one end of the electrode socket, and a certain distance is maintained between the reference plate and the electrode socket; b) Apply a certain amount of conductive adhesive to the other end of the electrode socket using the adhesive coating mechanism, and then use the purging mechanism to purge with certain air blowing parameters. c) At another electrode socket, change the amount of conductive adhesive applied by the coating mechanism and the air blowing parameters of the purging mechanism, and repeat step b) until each of the given combinations of coating amounts and air blowing parameters is used for at least one electrode socket. d) Detect the conductive adhesive coating rate on the inner peripheral sidewall of the electrode socket and the size of the conductive adhesive spot on the control plate respectively, and calibrate the coating parameters based on the conductive adhesive coating rate and the size of the conductive adhesive spot; e) Apply adhesive to the electrode socket array according to the adhesive application parameters.

2. The conductive adhesive coating method for current collector via arrays according to claim 1, characterized in that, A 0.2mm-0.3mm gap is provided between the control plate and the end of the electrode insertion hole.

3. The conductive adhesive coating method for current collector via arrays according to claim 1 or 2, characterized in that, In step b), the method for changing the amount of conductive adhesive applied by the coating mechanism is to adjust the dispensing time of the coating mechanism.

4. The conductive adhesive coating method for current collector pinhole arrays according to claim 1 or 2, characterized in that, In step b), the blowing parameters include the blowing time and / or the air flow rate.

5. The conductive adhesive coating method for a current collector via array according to claim 1 or 2, characterized in that, In step d), the method for detecting the conductive adhesive coating rate is to insert a probe into the electrode socket and remove it, and measure the area coverage of the conductive adhesive on the probe surface.

6. The conductive adhesive coating method for a current collector via array according to claim 1 or 2, characterized in that, In step d), the standard for calibrating the coating parameters is that the conductive adhesive coating rate is 20%-50%, and the size of the conductive adhesive spot is 60%-140% of the diameter of the electrode socket.

7. The conductive adhesive coating method for a current collector via array according to claim 1 or 2, characterized in that, The adhesive application device also includes a controller and a vision recognition mechanism. The vision recognition mechanism can identify the electrode sockets in the electrode socket array and locate the coordinates of each electrode socket. The controller controls the adhesive application mechanism and the purging mechanism to complete the adhesive application one by one according to the coordinates of the electrode sockets identified by the vision recognition mechanism.

8. The conductive adhesive coating method for current collector pinhole arrays according to claim 7, characterized in that, In step e), the visual recognition mechanism records the adhesive application process and includes step f): checking the adhesive application completion status of each electrode socket according to the recording results of the visual recognition mechanism and performing additional adhesive application.

9. The conductive adhesive coating method for current collector pinhole arrays according to claim 7, characterized in that, The adhesive application device also includes an auxiliary lighting device that provides auxiliary lighting to the current collector, and the brightness and position of the auxiliary lighting device are adjustable.

10. The conductive adhesive coating method for a current collector via array according to claim 1 or 2, characterized in that, The adhesive coating mechanism also includes a temperature control device, which maintains a constant temperature for the conductive adhesive.

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