Pole piece rubber frame processing equipment and pole piece rubber frame processing method

Abstract

The invention provides pole piece rubber frame processing equipment and a pole piece rubber frame processing method, and relates to the technical field of battery manufacturing. The pole piece rubber frame processing equipment comprises an adhesive tape marking device and a rubber frame transfer printing device, the adhesive tape mark making device comprises a mark making assembly, and the mark making assembly is used for cutting an annular kerf on an adhesive tape for preparing an adhesive frame so as to divide the adhesive tape into a waste part and an adhesive frame part; and the rubber frame transfer printing device comprises a pressurizing assembly and is used for receiving the adhesive tape cut by the marking assembly and receiving a pole band for preparing a pole piece, and the pressurizing assembly is used for fixing the adhesive tape to one side of the pole band to form a composite pole band. According to the pole piece rubber frame processing equipment, the annular kerf is cut on the rubber belt through the rubber belt marking device, then the rubber belt is fixed to one side of the pole belt through the rubber frame transfer printing device, then the waste part of the rubber belt is removed, the pole belt with the rubber frame can be obtained, and compared with a silk-screen printing technology, the structure of the rubber frame formed through cutting and transfer printing is more stable; and the forming quality is easier to control, and the machining difficulty is lower.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery manufacturing, in particular to a tab rubber frame processing equipment and a tab rubber frame processing method. BACKGROUND

[0002] Since the full solid-state battery adopts a traditional negative electrode large and a positive electrode small tab, an overhang area is formed in the circumferential direction of the positive tab. Under high pressure, the shear force generated between the tabs is easy to cause the solid-state electrolyte layer and the edge material area of the positive and negative tabs to break and collapse, thereby causing a short circuit problem.

[0003] To solve the short circuit problem between adjacent positive and negative tabs of the solid-state battery, the existing method is mainly to coat a layer of rubber frame on the edge of the upper surface or lower surface of the tab by traditional coating technology, or to print a layer of rubber frame on the edge of the upper surface or lower surface of the tab by screen printing technology. However, the traditional coating technology has the following problems: the solid-state battery needs to realize uniform dispensing on the surface of the micron-level thin electrolyte layer (usually ≤20 μm), which requires high positioning accuracy and glue amount control of the equipment, and the existing coating technology is difficult to achieve. Moreover, the existing coating speed is low (about 0.5 seconds per point, and the single tab coating time of an 80*100mm tab is about 1min), which makes it difficult to achieve mass production.

[0004] Therefore, the screen printing technology is more widely used. However, when pressure or temperature adjustment operations are required during the process of printing a rubber frame on the upper surface or lower surface edge of the tab using the screen printing technology, it is easy to have a destructive impact on the formation of the rubber frame, so that pressure and temperature adjustment operations are difficult to achieve. In addition, the consistency, line breaking degree and thickness uniformity of the rubber frame are difficult to control during the printing process, resulting in poor rubber frame forming quality and high processing difficulty. In addition, the screen printing technology has high requirements for the material quality of the glue. If the viscosity of the glue is too high, the ink cannot be penetrated, and if the viscosity is too low, the uniformity is poor, which further increases the processing difficulty of the rubber frame. SUMMARY

[0005] The present application aims to provide a tab rubber frame processing equipment and method to alleviate the technical problems in the prior art that when using the screen printing technology to process and form a rubber frame on the upper surface or lower surface edge of the tab, it is difficult to perform pressure and temperature adjustment operations during the processing process, and due to the difficulty in controlling the consistency, line breaking degree and thickness uniformity of the rubber frame, the rubber frame forming quality is poor and the processing difficulty is high. In addition, the screen printing technology has high requirements for the material quality of the glue, which further increases the processing difficulty of the rubber frame.

[0006] In a first aspect, the present application provides a tab rubber frame processing equipment, comprising a rubber belt marking device and a rubber frame transfer printing device. The tape marking device is disposed on one side of the adhesive frame transfer device. The tape marking device includes a marking component, which is used to cut an annular slit on the tape for preparing the adhesive frame to divide the tape into a waste part located inside the annular slit and a adhesive frame part located outside the annular slit. The frame transfer device includes a pressure assembly, which is used to receive the tape cut by the marking assembly and to receive the electrode strip for preparing the electrode sheet. The pressure assembly is used to apply pressure to the electrode strip and the tape to fix the tape to one side of the electrode strip to form a composite electrode strip.

[0007] In an optional embodiment, a tape feeding device is also included, which is disposed on one side of the tape marking device and is used to feed the tape to the tape marking device.

[0008] In an optional embodiment, an electrode feeding device is also included, which is disposed on one side of the frame transfer device and is used to transport the electrode to the frame transfer device.

[0009] In an optional embodiment, the electrode belt feeding device includes a first electrode belt feeding assembly and a second electrode belt feeding assembly; The first electrode tape feeding assembly and the second electrode tape feeding assembly are respectively disposed above and below the tape between the frame marking device and the frame transfer device. The first electrode tape feeding assembly and the second electrode tape feeding assembly are used to selectively transport the electrode tape to the frame transfer device.

[0010] In an optional embodiment, a waste recycling device is also included, which is disposed on one side of the frame transfer device and is used to receive the waste material stripped off from the composite electrode strip.

[0011] In an optional embodiment, a receiving device is also included, which is disposed on one side of the frame transfer device and is used to receive the composite electrode strip at the frame transfer device.

[0012] In an optional embodiment, the marking assembly includes a support platform, an upper drive member, and an annular cutter. The cutter is mounted on the output end of the upper drive member and is located above the support platform. The support platform is used to support the tape, and the upper drive member is used to drive the cutter closer to or further away from the support platform.

[0013] In an optional embodiment, the pressure assembly includes an upper pressure roller and a lower pressure roller, the upper pressure roller being disposed on one side of the lower pressure roller and having a gap between the upper pressure roller and the lower pressure roller, the upper pressure roller and the lower pressure roller being used to rotate in opposite directions and, during rotation, pressurize the electrode strip and adhesive tape entering the gap to form the composite electrode strip.

[0014] In an optional embodiment, the frame transfer device further includes a heating element, the upper pressure roller and / or the lower pressure roller being connected to the heating element, and the upper pressure roller and / or the lower pressure roller being able to heat up under the heat conduction effect of the heating element.

[0015] Secondly, the present invention provides a method for processing electrode frames, using the electrode frame processing equipment described in any of the foregoing embodiments, comprising: The tape used to prepare the frame is fed to the marking component in the tape marking device, and the marking component is used to cut an annular slit on the tape to divide the tape into a waste section located inside the annular slit and a frame section located outside the annular slit. The tape cut by the marking component is conveyed to the frame transfer device, and the electrode strip for preparing the electrode sheet is conveyed to the frame transfer device. The pressure component in the frame transfer device is used to pressurize the electrode strip and the tape to fix the tape to one side of the electrode strip to form a composite electrode strip. The waste portion of the composite electrode strip is peeled off, and then the composite electrode strip is cut to form an electrode sheet with a rubber frame on one side edge.

[0016] The electrode frame processing equipment provided by this invention includes a tape marking device and a frame transfer device. The tape marking device is disposed on one side of the frame transfer device and includes a marking component for cutting annular slits on the tape used to prepare the frame, dividing the tape into a waste portion located within the annular slit and a frame portion located outside the annular slit. The frame transfer device includes a pressure component for receiving the tape cut by the marking component and receiving the electrode strip used to prepare the electrode sheet. The pressure component applies pressure to the electrode strip and the tape to fix the tape to one side of the electrode strip to form a composite electrode strip. The electrode frame processing equipment provided by this invention is used to process and form a frame on the surface of the electrode sheet used in solid-state batteries. Before using this electrode frame processing equipment, it is necessary to first prepare the electrode strip for cutting to form the electrode sheet, and to make a tape using a colloidal material of the same material as the frame. For ease of storage and use, both the electrode strip and the tape can be rolled into a roll structure. When in use, the electrode strip roll and the tape roll can be unrolled. It should be noted that, for both positive and negative electrode sheets, a frame only needs to be formed on one side of the electrode surface edge. Therefore, when using the electrode frame processing equipment provided by this invention, a frame-making tape can be used first, and one side of the tape can be fed to the marking component of the tape marking device. Then, while continuously feeding the tape, the marking component is activated to cut multiple annular slits on the tape. The tape inside the annular slits is the waste portion, and the tape outside the annular slits is the frame portion. After the above process, multiple annular slits are formed on the tape at intervals along its length. The cut tape and the electrode sheet preparation tape can then be arranged vertically and simultaneously fed to the pressure component of the frame transfer device. While continuously feeding the tape and electrode sheet, the pressure component is activated, applying pressure to the tape and electrode sheet to fix the tape to one side of the electrode sheet, thus forming a composite electrode sheet. After the tape and electrode strip are fixed together to form a composite electrode strip, the waste portion (i.e., the tape inside the annular slit) on one side of the composite electrode strip is peeled off manually or mechanically. Then, the composite electrode strip is cut using die-cutting or other cutting processes to form multiple electrode sheets with adhesive frames at their surface edges. This completes the adhesive frame processing on the electrode sheets. It should be noted that when the marking component cuts to form the annular slit, the interval between the annular slits can be controlled by controlling the tape conveying speed or the cutting speed of the marking component, ensuring that the interval is sufficient to form at least two adhesive frames.As can be seen, the electrode frame processing equipment provided by the present invention, through the cooperation of the tape marking device and the frame transfer device, can process the frame on the electrode tape by cutting and then transferring. Then, the electrode with the frame formed on the surface edge can be obtained by cutting. It is not necessary to first make the sheet and then form the frame on the electrode by coating or printing. Compared with coating or printing, the above-mentioned cutting and transfer process is less difficult. Moreover, the frame material used in the cutting and transfer process is a tape formed of adhesive material rather than a flowable colloid. Since the tape is easier to control than the colloid, the consistency, breakage degree and thickness uniformity of the frame formed by the electrode frame processing equipment are easier to control, and the frame forming quality is better. Furthermore, the electrode frame processing equipment provided by this invention is easy to perform and will not have a destructive effect on the frame molding when it pressurizes the tape and electrode strip to form a composite electrode strip. Therefore, this electrode frame processing equipment can not only effectively improve the frame molding quality, but also effectively reduce the frame processing difficulty, thereby improving the frame processing efficiency.

[0017] Compared with the prior art, the electrode frame processing equipment provided by the present invention first cuts annular slits on the tape used to prepare the frame using a tape marking device, and then fixes the cut tape to one side of the electrode belt to form a composite electrode belt using a frame transfer device. Then, the waste part on the composite electrode belt is removed to obtain the electrode belt with the frame. Compared with screen printing technology, the frame formed by cutting and transferring the tape using the electrode frame processing equipment has a more stable structure, the molding quality is easier to control, and the frame processing difficulty is also lower.

[0018] The electrode frame processing method provided by this invention utilizes the aforementioned electrode frame processing equipment and includes: conveying a tape for preparing the frame to a marking component in a tape marking device, and using the marking component to cut an annular slit in the tape to divide the tape into a waste portion located within the annular slit and a frame portion located outside the annular slit; conveying the tape cut by the marking component to a frame transfer device; and conveying an electrode strip for preparing the electrode to the frame transfer device, and using a pressure component in the frame transfer device to apply pressure to the electrode strip and the tape to fix the tape to one side of the electrode strip to form a composite electrode strip; peeling off the waste portion from the composite electrode strip, and then cutting the composite electrode strip to form an electrode with a frame at one edge of one side. The electrode frame processing method provided by this invention utilizes the aforementioned electrode frame processing equipment, and therefore has the same beneficial effects as the aforementioned electrode frame processing equipment. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a front view of the electrode frame processing equipment provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the tape provided in an embodiment of the present invention; Figure 3 This is a front view of the marking assembly provided in an embodiment of the present invention; Figure 4 A bottom view of the local marking assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of an adhesive tape with an annular slit provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the electrode strip structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the pressurizing component, tape, electrode strip, and composite electrode strip provided in the embodiments of the present invention; Figure 8 This is another structural schematic diagram of the pressurizing component, tape, electrode strip, and composite electrode strip provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the composite electrode strip provided in an embodiment of the present invention; Figure 10 This is a schematic flowchart of the electrode frame processing method provided in an embodiment of the present invention.

[0021] Icons: 1- Tape marking device; 10- Marking assembly; 100- Support platform; 101- Upper drive component; 102- Cutter; 103- Upper fixing component; 104- Cutter support plate; 105- Lower drive component; 106- Lower fixing component; 11- Front flattening roller; 12- Rear flattening roller; 2- Glue frame transfer device; 20- Pressure assembly; 200- Upper pressure roller; 201- Lower pressure roller; 21- Upper roller fixing component; 22- Lower roller fixing component; 23- Front support roller; 24 - Rear support roller; 3- Belt; 30- Circular slit; 31- Waste section; 32- Frame section; 4- Electrode belt; 40- Electrode lug area; 5- Composite electrode belt; 6- Belt feeding device; 60- Belt feeding shaft; 61- Belt tension mechanism; 62- Belt splicing platform; 63- Belt correction mechanism; 64- Belt roll diameter detection piece; 7- Electrode belt feeding device; 70- First electrode belt feeding assembly; 700- First electrode belt feeding shaft; 701- First electrode belt tension mechanism; 70 2-First pole belt splicing platform; 703-First pole belt correction mechanism; 704-First pole belt roll diameter detection component; 71-Second pole belt feeding assembly; 710-Second pole belt feeding shaft; 711-Second pole belt tension mechanism; 712-Second pole belt splicing platform; 713-Second pole belt correction mechanism; 714-Second pole belt roll diameter detection component; 72-Pre-composite mechanism; 8-Waste recycling device; 80-First waste recycling assembly; 800-First peeling mechanism; 801 802-First waste material passing roller mechanism; 803-First waste material correction mechanism; 81-Second waste material collection shaft; 810-Second waste material recycling assembly; 811-Second peeling mechanism; 812-Second waste material passing roller mechanism; 813-Second waste material collection shaft; 82-Waste material adhesive tape; 9-Collection device; 90-Composite electrode belt tension mechanism; 91-Composite electrode belt correction mechanism; 92-Composite electrode belt splicing platform; 93-Composite electrode belt collection shaft. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Example: like Figure 1 As shown, the electrode frame processing equipment provided in this embodiment includes a tape marking device 1 and a frame transfer device 2. The tape marking device 1 is disposed on one side of the frame transfer device 2. The tape marking device 1 includes a marking component 10, which is used to cut an annular slit 30 on the tape 3 for preparing the frame, so as to divide the tape 3 into a waste part 31 located inside the annular slit 30 and a frame part 32 located outside the annular slit 30. The frame transfer device 2 includes a pressure component 20, which is used to receive the tape 3 cut by the marking component 10 and to receive the electrode strip 4 for preparing the electrode. The pressure component 20 is used to apply pressure to the electrode strip 4 and the tape 3 to fix the tape 3 to one side of the electrode strip 4 to form a composite electrode strip 5.

[0027] The electrode frame processing equipment provided in this embodiment is used to process and form a frame on the surface of the electrode used in solid-state batteries. Before using this electrode frame processing equipment, it is necessary to first manufacture... Figure 6 The electrode strip 4 shown is used for cutting to form the electrode sheet, and is made of a colloidal material of the same material as the frame. Figure 2 Tape 3 is shown. (As shown) Figure 2 and Figure 6 As shown, for ease of storage and use, both electrode strip 4 and adhesive tape 3 can be rolled into a roll structure. When in use, simply unroll the electrode strip roll and adhesive tape roll.

[0028] It should be noted that, regardless of whether it is a positive or negative electrode sheet, a frame only needs to be formed on one side of the electrode sheet's surface edge. Therefore, when using the electrode frame processing equipment provided in this embodiment, the frame-making tape 3 can be prepared first, and one side of the tape 3 can be conveyed to the underside of the marking component 10 of the tape marking device 1. Then, while continuously conveying the tape 3, the marking component 10 can be activated to utilize... Figure 3 and Figure 4 The marking assembly 10 shown cuts multiple annular slits 30 into the tape 3. The tape inside the annular slits 30 is the waste portion 31, and the tape outside the annular slits 30 is the frame portion 32. After the above process, as... Figure 5 As shown, multiple annular slits 30 are formed on the tape 3 at intervals along its length.

[0029] Then asFigure 7 and Figure 8 As shown, the cut adhesive tape 3 and the electrode preparation belt 4 can be arranged vertically and simultaneously conveyed to the pressure assembly 20 of the adhesive frame transfer device 2. It should be noted that since the adhesive frames for the positive and negative electrode sheets need to be formed on the upper and lower surfaces of the electrode sheets respectively, for different electrode sheets, the following can be used... Figure 7 As shown, tape 3 can be placed below electrode 4, or as follows: Figure 8 As shown, tape 3 is positioned above electrode belt 4. Then, while continuously conveying tape 3 and electrode belt 4, the pressure assembly 20 is activated, applying pressure to tape 3 and electrode belt 4, thereby fixing tape 3 to one side of electrode belt 4 to form... Figure 7 or Figure 8 The composite electrode 5 is shown.

[0030] After the tape 3 and electrode 4 are fixed together to form a composite electrode 5, the waste portion 31 on one side of the composite electrode 5 (i.e., the tape 3 within the annular slit 30) is peeled off manually or mechanically. The peeled composite electrode 5 is as follows: Figure 9 As shown, the composite electrode strip 5 is then cut using die-cutting and other cutting processes to form multiple electrode sheets with adhesive frames at the edges of the surfaces. This completes the adhesive frame processing on the electrode sheet.

[0031] It should be noted that when the marking component 10 cuts to form annular slits 30, the interval size between the annular slits 30 can be controlled by controlling the conveying speed of the tape 3 or the cutting speed of the marking component 10, so that the interval can at least meet the requirement of forming two adhesive frames.

[0032] As can be seen, the electrode frame processing equipment provided in this embodiment, through the cooperation of the tape marking device 1 and the frame transfer device 2, can process the frame on the electrode tape 4 by cutting and then transferring. Then, the electrode with the frame formed on the surface edge can be obtained by cutting. It is not necessary to first make the sheet and then form the frame on the electrode by coating or printing. Compared with coating or printing, the above-mentioned cutting and transfer process is less difficult. Moreover, the frame material used in the cutting and transfer process is the tape 3 formed by the adhesive material rather than the flowable colloid. Since the tape 3 is easier to control than the colloid, the consistency, breakage degree and thickness uniformity of the frame formed by the electrode frame processing equipment are easier to control, and the frame forming quality is better.

[0033] Furthermore, the electrode frame processing equipment provided in this embodiment, when pressurizing the adhesive tape 3 and electrode tape 4 to form the composite electrode tape 5, is easy to perform both the pressurization and temperature adjustment operations without causing destructive effects on the frame molding. Therefore, this electrode frame processing equipment can not only effectively improve the frame molding quality but also effectively reduce the frame processing difficulty, thereby improving the frame processing efficiency. Experimental verification shows that the production speed of the electrode frame processing equipment provided in this embodiment can reach 50 meters per minute.

[0034] Compared with the prior art, the electrode frame processing equipment provided in this embodiment first cuts annular slits 30 on the adhesive tape 3 used to prepare the frame using the tape marking device 1, and then fixes the cut tape 3 to one side of the electrode belt 4 to form a composite electrode belt 5 using the frame transfer device 2. Then, the waste part 31 on the composite electrode belt 5 is removed to obtain the electrode belt 4 with the frame. Compared with screen printing technology, the frame formed by cutting and transferring the tape 3 by the electrode frame processing equipment has a more stable structure, the molding quality is easier to control, and the frame processing difficulty is also lower.

[0035] It should be noted that, as Figure 6 As shown, an electrode tab region 40 is usually formed at the surface edge of the electrode strip 4. When the tape 3 is fixed to one side of the electrode strip 4, as... Figure 7 As shown, the edge of the tape 3 is located inside the tab area 40. At this time, the frame portion 32 is located inside the tab area 40, but both the frame portion 32 and the tab area 40 can be regarded as being located at the surface edge of the composite electrode 5.

[0036] like Figure 1 As shown, the electrode frame processing equipment provided in this embodiment also includes a tape feeding device 6. The tape feeding device 6 is disposed on one side of the tape marking device 1 and is used to transport the tape 3 to the tape marking device 1.

[0037] The tape feeding device 6 mechanizes the feeding and conveying process of the tape 3, which not only reduces the intensity of manual labor, but also effectively ensures the flatness of the tape 3.

[0038] Furthermore, such as Figure 1 As shown, the tape feeding device 6 may include a tape feeding shaft 60, a tape tension mechanism 61, a tape splicing platform 62, and a tape correction mechanism 63 arranged sequentially along the tape feeding direction 3.

[0039] A tape roll is mounted on the tape feeding shaft 60. The free side of the tape roll passes through the tape tension mechanism 61, the tape splicing platform 62 and the tape correction mechanism 63 in sequence before being pulled to the marking assembly 10.

[0040] The tape feeding shaft 60 can rotate to wind or unwind the tape 3; the tape tension mechanism 61 is used to support the tape 3 so that the tape 3 is in a taut state, thereby improving the stability of the tape 3 during the conveying process; the tape splicing platform 62 is used to support the tape 3 between the tape tension mechanism 61 and the tape correction mechanism 63 to prevent the tape 3 from slackening and sagging due to excessive conveying distance; the tape correction mechanism 63 is used to adjust the position of the tape 3 to ensure that the tape 3 can be accurately conveyed to the marking component 10.

[0041] During the conveying process of belt 3, belt tension mechanism 61 and belt correction mechanism 63 can cooperate with each other to ensure that the position deviation of belt 3 during traction and conveying is within 0.1 mm, thereby effectively ensuring the conveying accuracy of belt 3.

[0042] like Figure 1 As shown, the tape feeding device 6 may also include a tape roll diameter detection component 64, which is disposed on one side of the tape feeding shaft 60 and is used to detect the diameter of the tape roll on the tape feeding shaft 60 so as to replace the tape roll with a new one in time when the remaining tape roll is insufficient.

[0043] like Figure 1 As shown, the electrode frame processing equipment provided in this embodiment also includes an electrode belt feeding device 7, which is disposed on one side of the frame transfer device 2. The electrode belt feeding device 7 is used to transport the electrode belt 4 to the frame transfer device 2.

[0044] The electrode belt feeding device 7 mechanizes the feeding and conveying process of the electrode belt 4, which can further reduce the intensity of manual labor and effectively ensure the flatness of the electrode belt 4.

[0045] Furthermore, such as Figure 1 As shown, the electrode feeding device 7 includes a first electrode feeding assembly 70 and a second electrode feeding assembly 71; the first electrode feeding assembly 70 and the second electrode feeding assembly 71 are respectively disposed above and below the tape 3 between the frame marking device and the frame transfer device 2, and the first electrode feeding assembly 70 and the second electrode feeding assembly 71 are used to selectively transport the electrode 4 to the frame transfer device 2.

[0046] When the first electrode feeding assembly 70 conveys the electrode belt 4 to the glue frame transfer device 2, if Figure 7 As shown, the electrode strip 4 on the composite electrode strip 5 is located above the adhesive strip 3, so that the adhesive frame is formed at the edge of the upper surface of the electrode sheet. Correspondingly, when the electrode strip 4 is conveyed to the adhesive frame transfer device 2 using the second electrode strip feeding assembly 71, as... Figure 8 As shown, the electrode 4 on the composite electrode 5 is located below the adhesive tape 3, so that the adhesive frame is formed at the edge of the lower surface of the electrode sheet.

[0047] Among them, such as Figure 1As shown, the first electrode belt feeding assembly 70 may include a first electrode belt feeding shaft 700, a first electrode belt tension mechanism 701, a first electrode belt receiving platform 702, and a first electrode belt correction mechanism 703, arranged sequentially along the feeding direction of the electrode belt 4. Correspondingly, the second electrode belt feeding assembly 71 may include a second electrode belt feeding shaft 710, a second electrode belt tension mechanism 711, a second electrode belt receiving platform 712, and a second electrode belt correction mechanism 713, arranged sequentially along the feeding direction of the electrode belt 4.

[0048] When the first electrode belt feeding assembly 70 is needed to convey the electrode belt 4, the first electrode belt feeding shaft 700 is equipped with an electrode belt roll. The free side of the electrode belt roll passes through the first electrode belt tension mechanism 701, the first electrode belt connecting platform 702 and the first electrode belt correction mechanism 703 in sequence before being pulled to the glue frame transfer device 2.

[0049] The first electrode belt feeding shaft 700 can rotate to wind or unwind the electrode belt 4; the first electrode belt tension mechanism 701 is used to support the electrode belt 4 so that the electrode belt 4 is in a taut state, thereby improving the stability of the electrode belt 4 during the conveying process; the first electrode belt splicing platform 702 is used to support the electrode belt 4 between the first electrode belt tension mechanism 701 and the first electrode belt correction mechanism 703 to prevent the electrode belt 4 from loosening and sagging due to excessive conveying distance; the first electrode belt correction mechanism 703 is used to adjust the position of the electrode belt 4 to ensure that the electrode belt 4 can be accurately conveyed to the glue frame transfer device 2.

[0050] During the conveying process of the pole belt 4, the first pole belt tension mechanism 701 and the first pole belt correction mechanism 703 can cooperate with each other to ensure that the position deviation of the pole belt 4 during the traction conveying process is within 0.1 mm, thereby effectively ensuring the conveying accuracy of the pole belt 4.

[0051] like Figure 1 As shown, the first electrode belt feeding assembly 70 may further include a first electrode belt roll diameter detection element 704. The first electrode belt roll diameter detection element 704 is disposed on one side of the first electrode belt feeding shaft 700 and is used to detect the diameter of the electrode belt roll on the first electrode belt feeding shaft 700 so as to replace the electrode belt roll with a new one in time when the remaining material of the electrode belt roll is insufficient.

[0052] Correspondingly, when the second electrode belt feeding assembly 71 is needed to convey the electrode belt 4, the second electrode belt feeding shaft 710 is equipped with an electrode belt roll. The free side of the electrode belt roll passes through the second electrode belt tension mechanism 711, the second electrode belt connecting platform 712 and the second electrode belt correction mechanism 713 in sequence before being pulled to the glue frame transfer device 2.

[0053] The second electrode belt feeding shaft 710 can rotate to wind or unwind the electrode belt 4; the second electrode belt tension mechanism 711 is used to support the electrode belt 4 so that the electrode belt 4 is in a taut state, thereby improving the stability of the electrode belt 4 during the conveying process; the second electrode belt splicing platform 712 is used to support the electrode belt 4 between the second electrode belt tension mechanism 711 and the second electrode belt correction mechanism 713 to prevent the electrode belt 4 from loosening and sagging due to excessive conveying distance; the second electrode belt correction mechanism 713 is used to adjust the position of the electrode belt 4 to ensure that the electrode belt 4 can be accurately conveyed to the glue frame transfer device 2.

[0054] During the conveying process of the pole belt 4, the second pole belt tension mechanism 711 and the second pole belt correction mechanism 713 can cooperate with each other to ensure that the position deviation of the pole belt 4 during the traction conveying process is within 0.1 mm, thereby effectively ensuring the conveying accuracy of the pole belt 4.

[0055] like Figure 1 As shown, the second electrode belt feeding assembly 71 may also include a second electrode belt roll diameter detection element 714. The second electrode belt roll diameter detection element 714 is disposed on one side of the second electrode belt feeding shaft 710 and is used to detect the diameter of the electrode belt roll on the second electrode belt feeding shaft 710 so as to replace the electrode belt roll with a new one in time when the remaining material of the electrode belt roll is insufficient.

[0056] Furthermore, such as Figure 1 As shown, the electrode feeding device 7 may also include a pre-compositing mechanism 72, which is located near the glue frame transfer device 2, and includes an output end that can be raised and lowered.

[0057] The electrode belt 4 at the first electrode belt feeding assembly 70 or the second electrode belt feeding assembly 71, and the adhesive tape 3 pulled out from the marking assembly 10, must first pass through the output end of the pre-lamination mechanism 72 before being pulled to the adhesive frame transfer device 2. Thus, the electrode belt 4 and the cut adhesive tape 3 can converge at the pre-lamination mechanism 72. During the convergence process, the output end of the pre-lamination mechanism 72 can also rise to apply an upward supporting force to the electrode belt 4 and the adhesive tape 3, thereby generating a compressive force between the electrode belt 4 and the adhesive tape 3 for pre-lamination.

[0058] In addition, a tape 3 roller passing mechanism can be provided between the first electrode belt feeding assembly 70 and the second electrode belt feeding assembly 71. The tape 3 roller passing mechanism is used to support the cut tape 3, so that the cut tape 3 can stably pass through the electrode belt feeding device 7 and pass through the output end of the pre-composite mechanism 72 together with the electrode belt 4, and then merge and pre-composite at the pre-composite mechanism 72.

[0059] like Figure 1As shown, the electrode frame processing equipment provided in this embodiment may also include a waste recycling device 8, which is disposed on one side of the frame transfer device 2. The waste recycling device 8 is used to receive the waste portion 31 peeled off from the composite electrode strip 5.

[0060] The waste recycling device 8 is used to recycle the stripped waste section 31 so as to facilitate centralized recycling of the waste section 31.

[0061] Furthermore, such as Figure 1 As shown, the waste recycling device 8 may include a first waste recycling component 80 and a second waste recycling component 81, which are arranged vertically opposite each other. When the first electrode belt feeding component 70 is activated, the second waste recycling component 81 is activated to recycle the waste portion 31 located on the lower surface of the electrode belt 4 in the composite electrode belt 5. Correspondingly, when the second electrode belt feeding component 71 is activated, the first waste recycling component 80 is activated to recycle the waste portion 31 located on the upper surface of the electrode belt 4 in the composite electrode belt 5.

[0062] In this embodiment, a composite electrode belt 5 passing roller mechanism can also be provided between the first waste recycling component 80 and the second waste recycling component 81. The composite electrode belt 5 passing roller mechanism is used to support the composite electrode belt 5 so that the composite electrode belt 5 can stably pass through the waste recycling device 8.

[0063] like Figure 1 As shown, the first waste recycling assembly 80 may include a first stripping mechanism 800, a first waste roller mechanism 801, a first waste correction mechanism 802 and a first waste receiving shaft 803 arranged sequentially along the conveying direction of the waste section 31.

[0064] When the first waste recycling assembly 80 is needed to recycle the waste section 31, a waste adhesive tape 82 may be provided on the first stripping mechanism 800. The free side of the waste adhesive tape 82 passes through the first waste roller mechanism 801 and the first waste correction mechanism 802 in sequence and is then pulled to the first waste receiving shaft 803.

[0065] The first peeling mechanism 800 is capable of rotating to unfold the waste adhesive tape 82 and supporting the waste adhesive tape 82 so that it adheres to the waste portion 31 located on the upper surface of the electrode 4 in the composite electrode 5. When the composite electrode 5 passes through the waste recycling device 8, both the first peeling mechanism 800 and the first waste collection shaft 803 rotate to continuously peel the waste portion 31 from the upper surface of the electrode 4 with the waste adhesive tape 82, and collect the waste adhesive tape 82 with the waste portion 31 adhered to it back to the first waste collection shaft 803. It should be noted that, to prevent the waste adhesive tape 82 from peeling off the adhesive frame, the waste adhesive tape 82 can only have an adhesive portion in the area corresponding to the waste portion 31, and the remaining areas of the waste adhesive tape 82 are not adhesive.

[0066] Furthermore, the first waste material roller mechanism 801 is used to support the waste material adhesive tape 82 to keep it taut, thereby improving the stability of the waste material adhesive tape 82 during conveying. The first waste material correction mechanism 802 is used to adjust the position of the waste material adhesive tape 82 to ensure the accuracy of the peeling of the waste material section 31.

[0067] Correspondingly, such as Figure 1 As shown, the second waste recycling assembly 81 may include a second stripping mechanism 810, a second waste roller mechanism 811, a second waste correction mechanism 812, and a second waste receiving shaft 813 arranged sequentially along the conveying direction of the waste section 31.

[0068] When the second waste recycling assembly 81 is needed to recycle the waste section 31, a waste adhesive tape 82 can be provided on the second stripping mechanism 810. The free side of the waste adhesive tape 82 passes through the second waste roller mechanism 811 and the second waste correction mechanism 812 in sequence and is then pulled to the second waste receiving shaft 813.

[0069] The second peeling mechanism 810 is capable of rotating to unfold the waste adhesive tape 82 and supporting the waste adhesive tape 82 so that it adheres to the waste portion 31 located on the lower surface of the electrode 4 in the composite electrode 5. When the composite electrode 5 passes through the waste recycling device 8, both the second peeling mechanism 810 and the second waste collection shaft 813 rotate to continuously peel the waste portion 31 from the lower surface of the electrode 4 with the waste adhesive tape 82, and collect the waste adhesive tape 82 with the waste portion 31 adhered to it back to the second waste collection shaft 813. It should be noted that, to prevent the waste adhesive tape 82 from peeling off the adhesive frame, the waste adhesive tape 82 can only have an adhesive portion in the area corresponding to the waste portion 31, and the remaining areas of the waste adhesive tape 82 are not adhesive.

[0070] Furthermore, the second waste material roller mechanism 811 supports the waste material adhesive tape 82 to keep it taut, thereby improving the stability of the waste material adhesive tape 82 during conveying. The second waste material correction mechanism 812 adjusts the position of the waste material adhesive tape 82 to ensure the accuracy of the waste material removal from the waste material section 31.

[0071] like Figure 1 As shown, the electrode frame processing equipment provided in this embodiment also includes a receiving device 9, which is disposed on one side of the frame transfer device 2. The receiving device 9 is used to receive the composite electrode strip 5 at the frame transfer device 2.

[0072] The material collection device 9 mechanizes the recycling process of the composite electrode strip 5, further improving the working efficiency of the electrode frame processing equipment.

[0073] When the electrode frame processing equipment provided in this embodiment also includes a waste recycling device 8, it is preferred in this embodiment that the receiving device 9 is located on the side of the waste recycling device 8 away from the frame transfer device 2. In this case, the receiving device 9 is used to receive the composite electrode strip 5 that has been peeled off at the waste recycling device 8.

[0074] Specifically, such as Figure 1 As shown, the receiving device 9 may include a composite electrode tension mechanism 90, a composite electrode correction mechanism 91, a composite electrode connection platform 92, and a composite electrode receiving shaft 93, which are sequentially distributed along the conveying direction of the composite electrode belt 5.

[0075] The side of the stripped composite electrode belt 5 furthest from the conveyor belt feeding device 6 can be pulled and fixed onto the composite electrode belt take-up shaft 93, which can rotate to automatically wind up the stripped composite electrode belt 5. The composite electrode belt tension mechanism 90 supports the composite electrode belt 5 to keep it taut, thereby improving the stability of the composite electrode belt during conveying. The composite electrode belt correction mechanism 91 adjusts the position of the composite electrode belt 5 to ensure that it is accurately conveyed to the composite electrode belt take-up shaft 93. The composite electrode belt splicing platform 92 supports the composite electrode belt 5 to prevent it from slackening and sagging due to excessive conveying distance.

[0076] like Figure 1 , Figure 3 and Figure 4 As shown, the marking assembly 10 includes a support platform 100, an upper drive member 101, and an annular cutter 102. The cutter 102 is mounted on the output end of the upper drive member 101 and is located above the support platform 100. The support platform 100 is used to support the tape 3, and the upper drive member 101 is used to drive the cutter 102 to move closer to or away from the support platform 100.

[0077] The upper drive unit 101 is used to drive the cutter 102 to descend and apply downward pressure to the cutter 102, thereby cutting an annular slit 30 on the tape 3 on the support platform 100.

[0078] The upper drive component 101 can be a lifting drive structure such as a lifting cylinder. The size of the cutter 102 is not limited; it can be selected according to the required marking size.

[0079] In this embodiment, when the cutter 102 makes indentations, the distance the cutter 102 descends from the top of the tape 3 can be equal to the thickness of the tape 3 substrate, and the descent height accuracy of the cutter 102 is ≤ ±0.01 mm. This prevents the cutter 102 from failing to cut off the waste portion 31 of the tape 3, thus affecting subsequent transfer lamination and peeling processes.

[0080] like Figure 3 As shown, the output end of the upper drive member 101 can be provided with an upper fixing member 103, and a cutter support plate 104 is installed below the upper fixing member 103, with the cutter 102 fixed below the cutter support plate 104.

[0081] Furthermore, such as Figure 3 As shown, the marking assembly 10 may also include a lower drive member 105, and a lower fixing member 106 is provided at the output end of the lower drive member 105. The support platform 100 is fixed above the lower fixing member 106. The lower drive member 105 can be raised and lowered to drive the support platform 100 to approach or cutter 102.

[0082] Therefore, when cutting and marking the tape 3, not only can the cutter 102 move downwards, but the support platform 100 can also move upwards, thereby improving cutting efficiency.

[0083] The plane accuracy of the support platform 100 is ≤ ±0.03 mm, and the lifting height accuracy of the lower drive component 105 relative to the support platform 100 is ≤ ±0.01 mm.

[0084] like Figure 1 As shown, the tape marking device 1 may also include a front flattening roller 11 and a rear flattening roller 12. The front flattening roller 11 is located between the marking component 10 and the tape feeding device 6, and the rear flattening roller 12 is located between the marking component 10 and the tape feeding device 7. Both the front flattening roller 11 and the rear flattening roller 12 are used to support the tape 3, so that the tape 3 is flat and wrinkle-free before and after marking and has a certain tension, thereby ensuring that the positional accuracy of the tape 3 during the marking process is within 0.05 mm.

[0085] like Figure 1As shown, the pressure assembly 20 may include an upper pressure roller 200 and a lower pressure roller 201. The upper pressure roller 200 is disposed on one side of the lower pressure roller 201 and there is a gap between the upper pressure roller 200 and the lower pressure roller 201. The upper pressure roller 200 and the lower pressure roller 201 are used to rotate in opposite directions and apply pressure to the electrode strip 4 and the adhesive tape 3 that enter the gap during the rotation to form a composite electrode strip 5.

[0086] The distance between the upper pressure roller 200 and the lower pressure roller 201 must not be greater than the sum of the thicknesses of the tape 3 and the electrode tape 4.

[0087] There are no restrictions on the diameter of the upper pressure roller 200 and the lower pressure roller 201. They can be selected according to the production speed of the composite electrode belt 5 and the pressure required for composite bonding.

[0088] During use, the upper pressure roller 200 and the lower pressure roller 201, which can rotate in opposite directions, can not only apply radial pressure to the electrode belt 4 and the tape 3 to fix the tape 3 to one side of the electrode belt 4 to form a composite electrode belt 5, but also play a conveying role for the composite electrode belt 5.

[0089] In this embodiment, as Figure 1 As shown, the frame transfer device 2 may further include an upper roller fixing member 21 and a lower roller fixing member 22, which are arranged vertically opposite to each other. The upper pressure roller 200 is rotatably mounted on the upper roller fixing member 21, and the lower pressure roller 201 is rotatably mounted on the lower roller fixing member 22. The upper roller fixing member 21 and the lower roller fixing member 22 are used to support the upper pressure roller 200 and the lower pressure roller 201, respectively, thereby ensuring the stability of the upper pressure roller 200 and the lower pressure roller 201 in use.

[0090] Furthermore, the frame transfer device 2 may also include a heating element, with the upper pressure roller 200 and / or the lower pressure roller 201 connected to the heating element, and the upper pressure roller 200 and / or the lower pressure roller 201 being able to heat up under the heat conduction of the heating element.

[0091] When the transfer device 2 does not include a heating element or the heating element is not activated, both the upper pressure roller 200 and the lower pressure roller 201 are at room temperature. At this time, the bonding process of the pressure assembly 20 on the tape 3 and the electrode belt 4 can be regarded as a cold pressing (also a room temperature pressing) process. Correspondingly, when the heating element is activated, the pressure assembly 20 can transfer heat to at least one of the upper pressure roller 200 and the lower pressure roller 201, thereby realizing the hot pressing process of the tape 3 and the electrode belt 4.

[0092] It should be noted that, when using the cold pressing process, to ensure the pressing effect, in this embodiment, both the upper pressure roller 200 and the lower pressure roller 201 are preferably solid rollers. When using the hot pressing process, to ensure the hot pressing effect, in this embodiment, heating elements are preferably installed inside both the upper pressure roller 200 and the lower pressure roller 201.

[0093] The heating element can be either an electric heater or an oil heater.

[0094] like Figure 1 As shown, the frame transfer device 2 may further include a front support roller 23 and a rear support roller 24. The front support roller 23 and the rear support roller 24 are respectively arranged on both sides of the pressure assembly 20. The pre-composite adhesive tape 3 and electrode tape 4 are pulled between the upper pressure roller 200 and the lower pressure roller 201 after passing through the front support roller 23. After being pressed and combined by the upper pressure roller 200 and the lower pressure roller 201, the composite electrode tape 5 is then pulled onto the rear support roller 24. During the bonding process of the adhesive tape 3 and the electrode tape 4, the front support roller 23 can flatten the pre-composite adhesive tape 3 and the electrode tape 4 to prevent wrinkling, while the rear support roller 24 is used to flatten the composite electrode tape 5 to prevent wrinkling. At the same time, with the cooperation of the front support roller 23 and the rear support roller 24, the adhesive tape 3 and the electrode tape 4 always have a certain tension during the bonding process, thereby ensuring that the positional accuracy of the adhesive tape 3 and the electrode tape 4 during the transfer bonding process is within 0.05 mm, effectively improving the processing accuracy of the frame.

[0095] like Figure 10 As shown, this embodiment also provides a method for processing electrode frames, using the above-mentioned electrode frame processing equipment, including: Step S1: The adhesive tape 3 for preparing the frame is fed to the marking component 10 in the tape marking device 1, and the marking component 10 is used to cut an annular slit 30 on the tape 3 to divide the tape 3 into a waste part 31 located inside the annular slit 30 and a frame part 32 located outside the annular slit 30. Step S2: The tape 3 cut by the marking component 10 is conveyed to the frame transfer device 2, and the electrode strip 4 for preparing the electrode sheet is conveyed to the frame transfer device 2. The pressure component 20 in the frame transfer device 2 is used to press the electrode strip 4 and the tape 3 to fix the tape 3 to one side of the electrode strip 4 to form a composite electrode strip 5. Step S3: Peel off the waste portion 31 on the composite electrode strip 5, and then cut the composite electrode strip 5 to form an electrode sheet with a rubber frame at the edge of one side.

[0096] After step S1, the tape 3 will form as shown in the image. Figure 5 The annular slit 30 is described, but at this time, the adhesive frame portion 32 and the waste portion 31 on the tape 3 are still located on the tape 3, and the waste portion 31 has not detached from the tape 3. When step S2 is continued, Figure 5 The tape 3 shown Figure 6 The electrode strip 4 shown is pressed and bonded together by the pressure component 20 in the adhesive frame transfer device 2 to form a composite electrode strip 5. Then, step S3 is performed. After the peeling operation in step S3, the composite electrode strip 5 is as follows: Figure 9 As shown, when for Figure 9After the composite electrode strip 5 shown is cut, an electrode sheet with a glue frame formed on one side edge can be formed.

[0097] As can be seen, the electrode frame processing method provided in this embodiment uses the above-mentioned electrode frame processing equipment. It can also use the tape marking device 1 to first cut annular slits 30 on the tape 3 for preparing the frame, and then use the frame transfer device 2 to fix the cut tape 3 to one side of the electrode belt 4 to form a composite electrode belt 5. Then, the waste part 31 on the composite electrode belt 5 is removed to obtain the electrode belt 4 with the frame. Thus, the electrode frame processing method also involves cutting and transferring the tape 3 to form the frame. Compared with screen printing technology, it can also effectively improve the structural stability of the frame, making the frame forming quality easier to control, and reducing the processing difficulty of the frame.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrode frame processing equipment, characterized in that, It includes a tape marking device (1) and a frame transfer device (2). The tape marking device (1) is disposed on one side of the adhesive frame transfer device (2). The tape marking device (1) includes a marking component (10), which is used to cut an annular slit (30) on the adhesive tape (3) for preparing the adhesive frame, so as to divide the tape (3) into a waste part (31) located inside the annular slit (30) and an adhesive frame part (32) located outside the annular slit (30). The frame transfer device (2) includes a pressure assembly (20), which is used to receive the tape (3) cut by the marking assembly (10) and the electrode strip (4) for preparing the electrode sheet. The pressure assembly (20) is used to pressurize the electrode strip (4) and the tape (3) to fix the tape (3) to one side of the electrode strip (4) to form a composite electrode strip (5).

2. The electrode frame processing equipment according to claim 1, characterized in that, It also includes a tape feeding device (6), which is located on one side of the tape marking device (1) and is used to feed the tape (3) to the tape marking device (1).

3. The electrode frame processing equipment according to claim 1, characterized in that, It also includes a tape feeding device (7), which is located on one side of the frame transfer device (2) and is used to transport the tape (4) to the frame transfer device (2).

4. The electrode frame processing equipment according to claim 3, characterized in that, The electrode belt feeding device (7) includes a first electrode belt feeding assembly (70) and a second electrode belt feeding assembly (71). The first electrode feeding assembly (70) and the second electrode feeding assembly (71) are respectively disposed above and below the tape (3) between the frame marking device and the frame transfer device (2). The first electrode feeding assembly (70) and the second electrode feeding assembly (71) are used to selectively transport the electrode tape (4) to the frame transfer device (2).

5. The electrode frame processing equipment according to claim 1, characterized in that, It also includes a waste recycling device (8), which is disposed on one side of the frame transfer device (2) and is used to receive the waste portion (31) peeled off from the composite electrode strip (5).

6. The electrode frame processing equipment according to claim 1, characterized in that, It also includes a receiving device (9), which is disposed on one side of the frame transfer device (2) and is used to receive the composite electrode strip (5) at the frame transfer device (2).

7. The electrode frame processing equipment according to any one of claims 1-6, characterized in that, The marking assembly (10) includes a support platform (100), an upper drive member (101), and an annular cutter (102). The cutter (102) is mounted on the output end of the upper drive member (101) and is located above the support platform (100). The support platform (100) is used to support the tape (3), and the upper drive member (101) is used to drive the cutter (102) to move closer to or away from the support platform (100).

8. The electrode frame processing equipment according to any one of claims 1-6, characterized in that, The pressurizing assembly (20) includes an upper press roller (200) and a lower press roller (201). The upper press roller (200) is disposed on one side of the lower press roller (201) and there is a gap between the upper press roller (200) and the lower press roller (201). The upper press roller (200) and the lower press roller (201) are used to rotate in opposite directions and pressurize the electrode strip (4) and the tape (3) that enter the gap during the rotation to form the composite electrode strip (5).

9. The electrode frame processing equipment according to claim 8, characterized in that, The frame transfer device (2) further includes a heating element, the upper pressure roller (200) and / or the lower pressure roller (201) are connected to the heating element, and the upper pressure roller (200) and / or the lower pressure roller (201) can be heated by the heat conduction of the heating element.

10. A method for processing electrode frames, using the electrode frame processing equipment as described in any one of claims 1-9, characterized in that, include: The adhesive tape (3) for preparing the frame is fed to the marking component (10) in the tape marking device (1), and the marking component (10) cuts an annular slit (30) on the tape (3) to divide the tape (3) into a waste part (31) located inside the annular slit (30) and a frame part (32) located outside the annular slit (30). The tape (3) cut by the marking component (10) is conveyed to the frame transfer device (2), and the electrode strip (4) for preparing the electrode sheet is conveyed to the frame transfer device (2). The pressure component (20) in the frame transfer device (2) is used to pressurize the electrode strip (4) and the tape (3) to fix the tape (3) to one side of the electrode strip (4) to form a composite electrode strip (5). The waste portion (31) on the composite electrode strip (5) is peeled off, and the composite electrode strip (5) is then cut to form an electrode sheet with a rubber frame at the edge of one side.

Images