Thermal composite lamination feeding device, lamination production line and lamination process

Abstract

The application discloses a hot-composite lamination feeding equipment, a lamination production line and a lamination process. The hot-composite lamination feeding equipment comprises a deviation rectification detection device, a lamination cutting device and a lamination feeding device. The deviation rectification detection device is used for detecting the deviation angle of the lamination tape and generating a detection signal. The lamination cutting device is arranged on the discharge side of the deviation rectification detection device and is used for cutting the lamination tape into independent laminations. The lamination feeding device comprises a conveying mechanism, a deviation rectification adjusting mechanism and a lamination picking mechanism. One end of the conveying mechanism extends to the discharge side of the lamination cutting device. The deviation rectification adjusting mechanism is connected with the lamination picking mechanism and can adjust the angle of the lamination picking mechanism and the lamination on the lamination picking mechanism according to the detection signal of the deviation rectification detection device. The conveying mechanism is connected with the deviation rectification adjusting mechanism to convey the lamination with the adjusted angle to the next station. The application can realize closed-loop control of the alignment degree of the hot-composite lamination battery cell, thereby improving the quality of the battery cell.

Description

Technical Field

[0001] This application relates to the field of battery production equipment technology, and in particular to a thermal composite stacking feeding device, a stacking production line and a stacking process. Background Technology

[0002] With the continuous development of the new energy industry, lithium batteries, as the energy source for various electronic products, especially a crucial component of new energy vehicles, are playing an increasingly important role. Driven by the continuous pursuit of energy density, space utilization, cost, and efficiency, thermal composite stacking technology is gaining wider application due to its suitability for large-size batteries, extremely high stacking efficiency, and ability to improve cell quality.

[0003] Currently, thermal lamination stacking machines on the market cut the positive and negative electrode sheets with a cutter, and then the feeder moves them to the separator position. After stacking, the feeder returns to the receiving position for the next cycle. Since each stacking of positive and negative electrode sheets is a stacking cycle, and a bare cell is composed of multiple electrode sheets, the alignment between the positive and negative electrode sheets and between the electrode sheets and the separator are key factors affecting the quality of the cell. If the alignment does not meet the requirements, internal short circuits may occur in the cell. However, existing stacking and feeding devices cannot meet the alignment requirements in the thermal lamination stacking process. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a thermal composite stacking feeding device, which can realize closed-loop control of the alignment of thermal composite stacked cells, thereby improving cell quality.

[0005] This application also provides a lamination production line and lamination process having the above-mentioned thermal composite lamination feeding equipment.

[0006] According to an embodiment of the first aspect of this application, a thermal composite lamination feeding device includes a deviation correction detection device, an electrode cutting device, and an electrode feeding device. The deviation correction detection device has an interval position for feeding electrode strips and is used to detect the deviation angle of the electrode strips and generate a detection signal. The electrode cutting device is disposed on the discharge side of the deviation correction detection device and is used to cut the electrode strips into independent electrodes. The electrode feeding device includes a conveying mechanism, a deviation correction adjustment mechanism, and an electrode picking mechanism. One end of the conveying mechanism extends to the discharge side of the electrode cutting device. The electrode picking mechanism is disposed on the discharge side of the electrode cutting device to pick up the cut electrodes. The deviation correction adjustment mechanism is connected to the electrode picking mechanism and is communicatively connected to the deviation correction detection device. It can adjust the angle of the electrode picking mechanism and the electrodes on the electrode picking mechanism according to the detection signal of the deviation correction detection device. The conveying mechanism is connected to the deviation correction adjustment mechanism to convey the adjusted electrodes to the next station.

[0007] The thermal composite stacking feeding device according to the first aspect of this application has at least the following beneficial effects:

[0008] When feeding electrode sheets using the thermal lamination and stacking equipment of this application, the electrode sheet strip first passes through the interval position of the correction detection device to detect the deviation angle, and then enters the electrode sheet cutting device to be cut into individual electrode sheets. The electrode sheets are then picked up by the electrode sheet picking mechanism and conveyed to the next station by the conveying mechanism. During the conveying process, the correction detection device can adjust the angle of the electrode sheet picking mechanism and the electrode sheet according to the detection signal of the correction detection device. That is, the deviation angle of the electrode sheet can be corrected during the electrode sheet feeding process, so that at the next station, that is, before thermal lamination, the electrode sheet can be attached to the separator at the correct angle, thereby effectively improving the alignment between the electrode sheet and the separator, and also facilitating the subsequent lamination process to improve the alignment between the positive electrode sheet and the negative electrode sheet, realizing closed-loop control of the alignment of the thermal lamination and stacking cell, and thus improving the quality of the cell.

[0009] According to some embodiments of the thermal composite lamination feeding equipment of the first aspect of this application, the deviation correction detection device includes a deviation correction sensor and a fine adjustment fixture. The fine adjustment fixture is connected to the deviation correction sensor and is used to adjust the position of the deviation correction sensor in a first direction, wherein the first direction intersects with the feeding direction of the deviation correction detection device.

[0010] According to some embodiments of the thermal composite stacking feeding device of the first aspect of this application, the fine adjustment fixture includes a fixed seat, a guide rod, a sliding member and an adjusting member. The fixed seat is disposed on the feeding side of the electrode cutting device, the guide rod is disposed on the fixed seat along a first direction, the deviation correction sensor is disposed on the sliding member and the sliding member is slidably connected to the guide rod, and the adjusting member is disposed on the fixed seat and connected to the sliding member, and is used to adjust the position of the sliding member on the guide rod.

[0011] According to some embodiments of the thermal composite lamination feeding device of the first aspect of this application, the correction sensor includes an ultrasonic sensor, the ultrasonic sensor includes an ultrasonic transmitting module and an ultrasonic receiving module, the ultrasonic transmitting module and the ultrasonic receiving module are arranged opposite to each other, and the above-mentioned interval position for feeding the electrode material strip is formed in the middle.

[0012] The thermal composite stacking feeding device according to some embodiments of the first aspect of this application further includes a material guiding mechanism, which is disposed on the feeding side of the correction detection device, and the material guiding mechanism forms a material guiding channel that allows the electrode strip to pass through.

[0013] According to some embodiments of the thermal composite stacking feeding device of the first aspect of this application, the guiding mechanism includes an upper guiding plate and a lower guiding plate, which are spaced apart and form a guiding channel between them.

[0014] According to some embodiments of the thermal composite stacking equipment of the first aspect of this application, the conveying mechanism includes a transfer linear motor and a transfer platform. The transfer platform is disposed on the transfer linear motor and is driven by the transfer linear motor to reciprocate along a second direction. The correction and adjustment mechanism is disposed on the transfer platform.

[0015] According to some embodiments of the thermal composite stacking feeding device of the first aspect of this application, the correction adjustment mechanism includes a correction motor and a correction platform. The electrode picking mechanism is disposed on the correction platform. The output end of the correction motor is connected to the correction platform and is used to drive the correction platform to rotate around a first axis, wherein the first axis is perpendicular to the plane where the electrode is located.

[0016] A lamination production line according to some embodiments of the second aspect of this application includes a thermal lamination device, an unwinding device, and a thermal lamination lamination feeding device according to the first aspect embodiment described above; a deviation correction detection device is connected to the unwinding device, and one end of the conveying mechanism away from the discharge side of the electrode cutting device extends to the feed side of the thermal lamination device.

[0017] The wafer stacking production line according to some embodiments of the second aspect of this application has at least the following beneficial effects:

[0018] The lamination production line of this application, by adopting the thermal lamination feeding equipment of the first aspect embodiment, can sequentially detect the deviation angle of the electrode strip released by the unwinding equipment, cut the electrode strip, and correct and transport the cut electrode strip according to the detection signal. This allows the electrode strips transported by the conveying mechanism to the feeding side of the thermal lamination equipment to be attached to the separator at the correct angle, thereby effectively improving the alignment between the electrode strip and the separator. It also helps to improve the alignment between the positive electrode strip and the negative electrode strip in the subsequent lamination process. In other words, it can realize closed-loop control of the alignment of the thermal lamination cell, thereby improving the quality of the cell.

[0019] The thermal lamination process according to some embodiments of the third aspect of this application includes the following steps: performing a deviation detection on the electrode strip to obtain the deviation angle of the electrode strip; cutting the electrode strip after deviation detection to form independent electrodes; correcting the deviation of the electrodes according to the deviation angle and conveying the electrodes to the feed side of the thermal lamination station; and bonding the electrodes to the diaphragm on the feed side of the thermal lamination station.

[0020] The thermal composite stacking process according to some embodiments of the third aspect of this application has at least the following beneficial effects:

[0021] By performing deviation detection on the electrode strip to obtain the deviation angle, and then correcting the deviation of the electrode strip after the deviation detection by cutting it according to the deviation angle, the corrected electrode strip is attached to the separator on the feed side of the thermal bonding station. This can effectively improve the alignment between the electrode strip and the separator, and also help improve the alignment between the positive electrode strip and the negative electrode strip in the subsequent stacking process. In other words, it can realize closed-loop control of the alignment of the thermally bonded stacked cell, thereby improving the quality of the cell.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a thermal composite stacking feeding device according to one embodiment of this application;

[0025] Figure 2 for Figure 1 The diagram shows a top view of the thermal composite lamination feeding device.

[0026] Figure 3 for Figure 2 A magnified view of a portion of region A shown below;

[0027] Figure 4 for Figure 1 The diagram shows a side view of the thermal composite lamination feeding device.

[0028] Figure 5 This is a schematic diagram of the structure of a lamination production line according to one embodiment of this application;

[0029] Figure 6 This is a flowchart of a thermal composite lamination process according to one embodiment of this application.

[0030] Figure label:

[0031] 100; 110; 111; 112; 120; 121; 122; 123; 124; 200; 210; 220; 23; 124; 200; 210; 220; 300; 310; 320; 330; 400; 400; 410; 411; 412; 420; 430; 430; 500; 1000; 2000; 3 ...4000; 3000; 410; 3000; 3000; 410; 320; 430; 500; 500; 1000; 2000; 3000; 3000; 3000; 3000; 410; 310; 420; 310; 320; 330; 3000; 4000; 410; 320; 330; 4000; 410; 410; 320; 330; 3000; 410; 410; 411; 412; 420; 410; 410; 320; 330; 3000; 410; 410; 410; 411; 412; 420; 410; 410; 411; 412; 410 Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] In the description of this application, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0035] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0036] The following is for reference only. Figure 1 To be continued Figure 4 This application describes a thermal composite stacking feeding device 2000 according to a first aspect embodiment of the present application.

[0037] Reference Figures 1 to 4According to one embodiment of this application, a thermal composite lamination feeding device 2000 includes a deviation correction detection device 100, an electrode cutting device 300, and an electrode feeding device 400. The deviation correction detection device 100 has an interval for feeding the electrode strip 500, and is used to detect the deviation angle of the electrode strip 500 and generate a detection signal. The electrode cutting device 300 is disposed on the discharge side of the deviation correction detection device 100 and is used to cut the electrode strip 500 into independent electrodes. The electrode feeding device 400 includes a conveying mechanism 410 and a deviation correction adjustment mechanism 420. The electrode picking mechanism 430 and the conveying mechanism 410 are connected at one end to the discharge side of the electrode cutting device 300. The electrode picking mechanism 430 is located on the discharge side of the electrode cutting device 300 to pick up the electrode formed by cutting. The correction adjustment mechanism 420 is connected to the electrode picking mechanism 430 and is communicatively connected to the correction detection device 100. It can adjust the angle of the electrode picking mechanism 430 and the electrode on the electrode picking mechanism 430 according to the detection signal of the correction detection device 100. The conveying mechanism 410 is connected to the correction adjustment mechanism 420 to convey the electrode after the angle is adjusted to the next station.

[0038] When the electrode is fed by the thermal lamination stacking equipment 2000 of this application, the electrode strip 500 first passes through the interval position of the correction detection device 100 to detect the deviation angle, and then enters the electrode cutting device 300 to be cut into independent electrodes. Then the electrodes are picked up by the electrode picking mechanism 430 and can be transported to the next station by the conveying mechanism 410. During the transport process, the correction detection device 100 can adjust the angle of the electrode picking mechanism 430 and the electrode according to the detection signal of the correction detection device 100. That is, the deviation angle of the electrode can be corrected during the electrode feeding process, so that in the next station, that is, before thermal lamination, the electrode can be attached to the separator at the correct angle, thereby effectively improving the alignment between the electrode and the separator, and also facilitating the subsequent lamination process to improve the alignment between the positive electrode and the negative electrode, realizing closed-loop control of the alignment of the thermal lamination stacked cell, and thus improving the quality of the cell.

[0039] Understandably, referring to Figure 1 To detect the deviation angle of the electrode strip 500, the deviation detection device 100 includes a deviation sensor 110, and in this embodiment, referring to... Figure 2 and Figure 3The deviation detection device 100 also includes a fine-tuning fixture 120, which is connected to the deviation sensor 110 and is used to adjust the position of the deviation sensor 110 in a first direction, wherein the first direction intersects with the feeding direction of the deviation detection device 100. Since the first direction intersects with the feeding direction of the deviation detection device 100, the position of the deviation sensor 110 in the first direction is adjusted by the fine-tuning fixture 120, which will inevitably enable the deviation sensor 110 to be aligned with the edge of the electrode strip 500, so as to sense the edge information of the electrode strip 500, and then obtain the deviation angle of the electrode strip 500 and generate a corresponding detection signal.

[0040] Understandably, referring to Figure 3 Specifically, the fine-tuning fixture 120 includes a fixed base 121, a guide rod 122, a sliding member 123, and an adjusting member 124. The fixed base 121 is disposed on the feed side of the electrode cutting device 300. The guide rod 122 is disposed on the fixed base 121 along a first direction. The correction sensor 110 is disposed on the sliding member 123, and the sliding member 123 is slidably connected to the guide rod 122, so that the correction sensor 110 can slide along the guide rod 122 along the first direction with the sliding member 123. The adjusting member 124 is disposed on the fixed base 121 and connected to the sliding member 123, and is used to adjust the position of the sliding member 123 on the guide rod 122. Before the thermal composite stacking feeding equipment 2000 of this application is put into operation, the position of the sliding member 123 on the guide rod 122 can be adjusted by the adjusting member 124 through the fine adjustment fixture 120, so that the correction sensor 110 on the sliding member 123 can be aligned with the edge of the electrode strip 500, so that the correction sensor 110 can sense and acquire the edge information of the electrode strip 500 during the formal operation.

[0041] Understandably, referring to Figure 3 In this embodiment, specifically, the adjusting member 124 can be a micrometer, so that the positions of the sliding member 123 and the correction sensor 110 can be finely adjusted, making it easy to adjust the correction sensor 110 to the ideal position.

[0042] It should be understood that, in addition to using a micrometer, in some other embodiments, the adjusting member 124 may also be a screw driven by a handwheel and threadedly engaged with the sliding member 123, or other types of adjusting members 124, as long as they can effectively adjust the position of the sliding member 123 on the guide rod 122, and no specific restrictions are imposed here.

[0043] Understandably, referring to Figure 2 and Figure 3In this embodiment, specifically, the first direction is set perpendicular to the feeding direction of the correction detection device 100, that is, the guide rod 122 is set perpendicular to the feeding direction of the correction detection device 100. It should be understood that in some other embodiments, the first direction is also chosen to intersect the feeding direction of the correction detection device 100 at other angles, such as setting the guide rod 122 to intersect the feeding direction of the correction detection device 100 at 45° or 30°, etc.

[0044] It is understood that the correction sensor 110 includes an ultrasonic sensor; the ultrasonic sensor is small in size and easy to install, and it is also easy to adjust to align with the edge of the electrode strip 500 by the cooperation of the adjusting member 124 and the sliding member 123. Moreover, the ultrasonic sensor has high detection efficiency, so it can meet the detection needs when the electrode strip 500 moves quickly.

[0045] Reference Figure 4 Specifically, the ultrasonic sensor includes an ultrasonic transmitting module 111 and an ultrasonic receiving module 112. The ultrasonic transmitting module 111 and the ultrasonic receiving module 112 are arranged opposite to each other, and an interval is formed in the middle to allow the electrode strip 500 to feed. When the electrode strip 500 passes through the interval formed between the ultrasonic transmitting module 111 and the ultrasonic receiving module 112, the ultrasonic waves emitted by the ultrasonic transmitting module 111 will reach the edge of the electrode strip 500, and the ultrasonic receiving module 112 can know the edge information of the electrode strip 500 based on the received ultrasonic waves. At the same time, since the electrode strip 500 is continuously conveyed to one side of the electrode cutting device 300 at the interval, the ultrasonic sensor can know the edge information at different positions in the length direction of the electrode strip 500. Then, based on the edge information at different positions in the length direction, the angular deviation between the edge of the electrode strip 500 and the set baseline can be obtained, that is, the deviation angle of the electrode strip 500 can be detected and obtained.

[0046] It should be understood that in some other embodiments, the correction sensor 110 may also be selected to be other types of sensors such as laser sensors.

[0047] Understandably, in order to convey the electrode sheets from the discharge side of the electrode sheet cutting device 300 to the next station, refer to Figure 1 and Figure 4In this embodiment, specifically, the thermal composite stacking feeding equipment 2000 further includes a guiding mechanism 200. The guiding mechanism 200 is disposed on the feeding side of the correction detection device 100, and the guiding mechanism 200 forms a guiding channel that allows the electrode strip 500 to pass through. The electrode strip 500 is guided and transported to the feeding side of the correction detection device 100 through the guiding channel, so that the electrode strip 500 can enter the correction detection device 100 and the electrode cutting device 300 in a relatively straighter manner.

[0048] Understandably, referring to Figure 4 In this embodiment, specifically, the material guiding mechanism 200 includes an upper guide plate 210 and a lower guide plate 220, which are spaced apart and form a material guiding channel between them. Thus, when the electrode strip 500 passes through the material guiding mechanism 200, it will pass through the gap between the upper guide plate 210 and the lower guide plate 220. The upper guide plate 210 and the lower guide plate 220 can also limit the upper and lower directions of the electrode strip 500, respectively, so that the electrode strip 500 can enter the correction detection device 100 and the electrode cutting device 300 in a relatively straighter manner.

[0049] It should be understood that in some other embodiments, the material guiding mechanism 200 may also be selected to be a single plate, and a through groove is opened in the middle of the single plate to form a material guiding channel.

[0050] Understandably, in order to convey the electrode sheets from the discharge side of the electrode sheet cutting device 300 to the next station, refer to Figure 4In this embodiment, specifically, the conveying mechanism 410 includes a transfer linear motor 411 and a transfer platform 412. The transfer platform 412 is mounted on the transfer linear motor 411 and is driven by the transfer linear motor 411 to reciprocate along a second direction. The correction adjustment mechanism 420 is mounted on the transfer platform 412. The second direction is the direction from the discharge side of the electrode cutting device 300 to the next work station. For example, in this embodiment, the second direction can be the direction from the discharge side of the electrode cutting device 300 to the feed side of the thermal bonding equipment 3000. In this embodiment, the second direction is parallel to the first direction. When the electrode cutting device 300 cuts to form independent electrodes, the transfer linear motor 411 drives the transfer platform 412 to drive the correction adjustment mechanism 412. Together with the electrode picking mechanism 430, the electrode pick-up mechanism 430 moves towards the side closer to the electrode cutting device 300. When the transfer platform 412 moves to the discharge side of the electrode cutting device 300, the electrode picking mechanism 430 picks up the electrode. Then, the transfer linear motor 411 drives the transfer platform 412 to move the correction adjustment mechanism 420, the electrode picking mechanism 430, and the electrode together towards the next station, that is, towards the feed side of the thermal bonding equipment 3000. During this conveying process, the correction adjustment mechanism 420 adjusts the angle between the electrode picking mechanism 430 and the electrode according to the detection signal of the correction detection device 100. For example, when the deviation angle of the electrode strip 500 is detected to be 2°, it rotates and adjusts by 2° in the opposite direction of the deviation direction.

[0051] It should be understood that when the feed side of the thermal bonding equipment 3000 is not in the feed direction of the electrode cutting device 300, that is, when the next station is not in the feed direction of the electrode cutting device 300, the second direction will intersect the first direction at a certain angle. In other embodiments, the second direction may also intersect the first direction. Therefore, no specific restrictions are placed on the second direction here.

[0052] It should be understood that, in order to achieve the conveying of the electrode sheet, in addition to the linear drive mechanism consisting of the transfer linear motor 411 and the transfer platform 412, the conveying mechanism 410 can also be selected to use other types of linear drive mechanisms such as rodless cylinders in some other embodiments. Therefore, no specific limitation is made to the conveying mechanism 410, as long as it can drive the electrode sheet to be conveyed along the second direction. For example, when the conveying mechanism 410 uses a rodless cylinder, the rodless cylinder can be set along the second direction, and the correction adjustment mechanism 420 can be connected to the drive part of the rodless cylinder.

[0053] Understandably, in order to achieve angle correction of the electrode, reference is needed. Figure 4In this embodiment, specifically, the correction adjustment mechanism 420 includes a motor alignment platform, which includes a correction motor and an alignment platform. The output end of the correction motor is connected to the alignment platform and is used to drive the alignment platform to rotate around a first axis. The electrode picking mechanism 430 is disposed on the alignment platform. When the electrode picking mechanism 430 picks up the electrode, the first axis will be perpendicular to the plane where the electrode is located. That is, the correction motor will be able to drive the alignment platform to drive the electrode picking mechanism 430 and the electrode to rotate together around the first axis perpendicular to the plane where the electrode is located, so that the electrode can rotate in its own plane, thereby realizing angle correction.

[0054] Understandably, since the electrode pickup mechanism 430 is a conventional existing mechanism, it will not be described in detail here.

[0055] Understandably, in order to achieve the goal of cutting the electrode strip into independent electrodes by 500mm, refer to Figure 4 In this embodiment, specifically, the electrode cutting device 300 includes an upper cutter 310, a lower cutter 320, and a drive motor 330. The lower cutter 320 is fixedly disposed on the discharge side of the correction detection device 100, and the upper cutter 310 is disposed above the lower cutter 320. The drive motor 330 is connected to the upper cutter 310 and is used to drive the upper cutter 310 to move up and down reciprocally, thereby causing the upper cutter 310 to move closer to or away from the lower cutter 320. When the electrode strip 500 is fed into the electrode cutting device 300, the electrode strip 500 will be between the upper cutter 310 and the lower cutter 320, and the upper cutter 310 will move downward under the drive of the drive motor 330 to approach the lower cutter 320, thereby cutting and separating the electrode from the electrode strip 500.

[0056] The following is for reference only. Figure 5 A lamination production line according to an embodiment of the second aspect of this application is described.

[0057] Reference Figure 5 According to one embodiment of the present application, a lamination production line includes a thermal lamination equipment 3000, an unwinding equipment 1000, and a thermal lamination lamination feeding equipment 2000 of the first aspect embodiment described above; wherein, a deviation correction detection device 100 is connected to the unwinding equipment 1000, and the unwinding equipment 1000 is used to release the electrode strip 500 to the feed side of the deviation correction detection device 100; one end of the conveying mechanism 410 away from the discharge side of the electrode cutting device 300 extends to the feed side of the thermal lamination equipment 3000, so that the conveying mechanism 410 can convey the electrode from the discharge side of the electrode cutting device 300 to the feed side of the thermal lamination equipment 3000, so that the electrode can be bonded to the diaphragm on the feed side of the thermal lamination equipment 3000.

[0058] It is understood that the lamination production line of this embodiment, by adopting the thermal lamination feeding equipment 2000 of the first aspect embodiment, can sequentially detect the deviation angle of the electrode strip 500 released by the unwinding equipment 1000, cut the electrode, and correct and transport the cut electrode according to the detection signal. This allows the electrode conveyed by the conveying mechanism 410 to the feeding side of the thermal lamination equipment 3000 to be attached to the separator at the correct angle, thereby effectively improving the alignment between the electrode and the separator. It also helps to improve the alignment between the positive electrode and the negative electrode in the subsequent lamination process, that is, it can realize closed-loop control of the alignment of the thermal lamination cell, thereby improving the quality of the cell.

[0059] The following is for reference only. Figure 6 The thermal composite lamination process of the third aspect of this application is described.

[0060] Reference Figure 6 The thermal composite lamination process according to one embodiment of this application includes the following steps:

[0061] S100, Perform correction detection on the electrode strip 500 to obtain the deviation angle of the electrode strip 500;

[0062] S200: Cut the electrode strip 500 after the correction test into individual electrodes;

[0063] S300: Correct the electrode sheet according to the deviation angle and transport the electrode sheet to the feed side of the thermal bonding station;

[0064] S400, attach the electrode sheet to the diaphragm on the feed side of the thermal bonding station.

[0065] It should be noted that by performing a deviation detection on the electrode strip 500 in step S100 to obtain the deviation angle of the electrode strip 500, and then correcting the deviation of the electrode formed in step S200 according to the deviation angle in step S300, and then attaching the corrected electrode to the separator on the feed side of the thermal bonding station in step S400, the alignment between the electrode and the separator can be effectively improved, and it is also beneficial to improve the alignment between the positive electrode and the negative electrode in the subsequent stacking process. That is, the thermal bonding stacking process of this embodiment can realize closed-loop control of the alignment of the thermal bonding stacked cell, thereby improving the quality of the cell.

[0066] It should be understood that, in some embodiments, the above-described thermal composite lamination process of S100 to S400 can be completed by the lamination production line of the second aspect embodiment described above.

[0067] Specifically, in step S100, the unwinding device 1000 releases the electrode strip 500 and allows the electrode strip 500 to pass through the interval of the correction detection device 100, thereby performing correction detection on the electrode strip 500 through the correction detection device 100, thereby obtaining the deviation angle of the electrode strip 500 and generating a detection signal corresponding to the deviation angle.

[0068] Specifically, in step S200, the electrode strip 500 after being corrected by the correction detection device 100 will enter the electrode cutting device 300 located on the discharge side of the correction detection device 100, and will be cut by the electrode cutting device 300 into electrodes of a set size and independent of each other.

[0069] Specifically, in step 300, the correction adjustment mechanism 420 and the electrode picking mechanism 430 in the electrode feeding device 400 are moved to the discharge side of the electrode cutting device 300 under the conveying of the conveying mechanism 410. Then, the electrode picking mechanism 430 picks up the electrode formed by the previous step. Then, the conveying mechanism 410 conveys the correction adjustment mechanism 420, the electrode picking mechanism 430 and the electrode together to the feeding side of the thermal bonding station, that is, to the feeding side of the thermal bonding equipment 3000. At the same time as conveying, the correction adjustment mechanism 420 will correct the deviation according to the detection signal corresponding to the deviation angle, that is, adjust the angle of the electrode picking mechanism 430 and the electrode according to the detection signal, so that the electrode completes the angle correction.

[0070] Specifically, in step S400, after the conveying mechanism 410 conveys the electrode picking mechanism 430 and the electrode together to the feed side of the thermal bonding equipment 3000, the electrode that has completed angle correction will be attached to the diaphragm located on the feed side of the thermal bonding equipment 3000 under the drive of the electrode picking mechanism 430.

[0071] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A hot compounding lamination loading apparatus, characterized by, The application relates to a polar plate strip feeding device, which comprises the following parts: a deviation detection device, which has a spacing position for polar plate strip feeding, and is used for detecting the deviation angle of the polar plate strip and generating a detection signal; a polar plate cutting device, which is arranged on the discharge side of the deviation detection device and is used for cutting the polar plate strip into independent polar plates; a polar plate feeding device, which comprises a conveying mechanism, a deviation adjustment mechanism and a polar plate pickup mechanism, one end of the conveying mechanism extends to the discharge side of the polar plate cutting device, the polar plate pickup mechanism is arranged on the discharge side of the polar plate cutting device to pick up the polar plates cut, the deviation adjustment mechanism is connected with the polar plate pickup mechanism and is in communication connection with the deviation detection device, and the deviation adjustment mechanism can adjust the angle of the polar plate pickup mechanism and the polar plates on the polar plate pickup mechanism by rotating the polar plate pickup mechanism according to the detection signal of the deviation detection device, and the conveying mechanism is connected with the deviation adjustment mechanism to convey the polar plates with the adjusted angle to the next station.

2. The hot compounding lamination on-feeding apparatus according to claim 1, characterized by, The deviation detection device comprises a deviation sensor and a fine adjustment jig, the fine adjustment jig is connected with the deviation sensor and is used for adjusting the position of the deviation sensor in a first direction, wherein the first direction intersects with the feeding direction of the deviation detection device.

3. The hot compounding lamination on-feeding apparatus according to claim 2, characterized by The fine adjustment jig comprises a fixing seat, a guide rod, a sliding piece and an adjusting piece, the fixing seat is arranged on the feeding side of the polar plate cutting device, the guide rod is arranged on the fixing seat along the first direction, the deviation sensor is arranged on the sliding piece, the sliding piece is slidably connected with the guide rod, and the adjusting piece is arranged on the fixing seat and is connected with the sliding piece and is used for adjusting the position of the sliding piece on the guide rod.

4. The hot compounding lamination on-feeding apparatus according to claim 2, wherein The deviation sensor comprises an ultrasonic sensor, the ultrasonic sensor comprises an ultrasonic sending module and an ultrasonic receiving module, the ultrasonic sending module and the ultrasonic receiving module are oppositely arranged and form the spacing position therebetween.

5. The hot compounding lamination stack feeding apparatus according to any one of claims 1 to 4, characterized by The application further comprises a material guiding mechanism, which is arranged on the feeding side of the deviation detection device and forms a material guiding channel allowing the polar plate strip to pass.

6. The hot compounding lamination on-feeding apparatus according to claim 5, wherein The material guiding mechanism comprises an upper material guiding plate and a lower material guiding plate, the upper material guiding plate and the lower material guiding plate are arranged in a spaced mode and form the material guiding channel therebetween.

7. The hot compounding lamination stack feeding apparatus according to any one of claims 1 to 4, characterized by The conveying mechanism comprises a moving linear motor and a moving platform, the moving platform is arranged on the moving linear motor and is driven by the moving linear motor to reciprocate along a third direction, and the deviation adjustment mechanism is arranged on the moving platform.

8. The hot compounding lamination stack feeding apparatus according to any one of claims 1 to 4, characterized by The deviation adjustment mechanism comprises a deviation motor and a righting platform, the polar plate pickup mechanism is arranged on the righting platform, the output end of the deviation motor is connected with the righting platform and is used for driving the righting platform to rotate around a first axis, wherein the first axis is perpendicular to the plane where the polar plates are located.

9. A hot compounding lamination production line characterized by, The application relates to a hot composite device, a unwinding device and a polar plate feeding device. The deviation detection device is connected with the unwinding device, and one end of the conveying mechanism away from the discharge side of the polar plate cutting device extends to the feeding side of the hot composite device. ​ ​ 10. A hot compounding lamination process characterized by, The method comprises the following steps: Carrying out deviation correction detection on the electrode tab material belt to obtain a deviation angle of the electrode tab material belt; Carrying out slitting on the electrode tab material belt after the deviation correction detection to form independent electrode tabs; Correcting the deviation of the electrode tab by rotating the electrode tab according to the deviation angle and conveying the electrode tab to the feeding side of a thermal lamination station; Attaching the electrode tab on the diaphragm at the feeding side of the thermal lamination station.

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