A battery pole piece taping device
By designing an automated battery electrode splicing device, electrode roll splicing can be performed by a single operator, reducing labor and equipment costs, improving splicing efficiency, adapting to electrode rolls of different widths, and solving the problems of multiple operators and high costs in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING TALENT NEW ENERGY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-14
AI Technical Summary
Existing electrode tape splicing devices require multiple operators, resulting in high labor costs and high device costs. Furthermore, the excessive number of drive mechanisms in existing devices leads to low splicing efficiency.
A battery electrode tape bonding device was designed, including a main support, a bonding plate, a tape breakage detection mechanism, a bonding mechanism, a pressing mechanism, and a cutting mechanism. The device achieves automated bonding of electrode rolls through five drive mechanisms, reducing the number of drive mechanisms, and is adapted to electrode rolls of different widths through a controller.
It enables automated electrode roll splicing operated by a single person, reducing labor costs, saving equipment costs, reducing tape waste, and enabling splicing to be completed in spaces with limited space, adapting to electrode rolls of different widths.
Smart Images
Figure CN224493092U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery manufacturing technology, and in particular to a battery electrode bonding device. Background Technology
[0002] In lithium battery manufacturing, electrode roll splicing and bonding are necessary when changing rolls or when the tape breaks. Existing electrode roll splicing devices typically require multiple people working together; at least one person needs to hold the roll in place while another applies the tape, resulting in high labor costs. Although some machines can assist manual application, they still cannot allow a single person to complete the splicing process, significantly limiting efficiency. Furthermore, existing electrode roll splicing devices often involve seven drive mechanisms (such as cylinders), leading to high overall costs. Utility Model Content
[0003] Therefore, this application provides a battery electrode bonding device in an attempt to solve or at least alleviate at least one of the above-mentioned problems.
[0004] According to one aspect of this application, a battery electrode bonding device is provided for bonding broken electrode strips, comprising:
[0005] Main support frame;
[0006] An adhesive sheet is placed below the main support frame;
[0007] A breakage detection mechanism is installed on the upper part of the main support, used to detect the breakage of the electrode and generate a breakage signal when a breakage is detected;
[0008] An adhesive applicator, mounted on the main support, includes: a first tape gripper, a second tape gripper, a first drive mechanism, a second drive mechanism, and a third drive mechanism. The first tape gripper and the second tape gripper are respectively positioned near both ends of the adhesive applicator plate. The first drive mechanism is controlled and connected to the first tape gripper to drive the first tape gripper to convey the tape to the second tape gripper. The second drive mechanism and the third drive mechanism are respectively controlled and connected to the first tape gripper and the second tape gripper to control the first tape gripper and the second tape gripper to approach the adhesive applicator plate so that the tape is adhered to the broken electrode sheet.
[0009] A pressing mechanism, disposed on the main support, includes: a pressing roller and a fourth driving mechanism, wherein the fourth driving mechanism is controlled to be connected to the pressing roller, and is used to control the pressing roller to press the tape pasted on the broken strip electrode sheet, and to control the pressing roller to reciprocate and roll on the tape pasted on the broken strip electrode sheet;
[0010] A cutting mechanism, mounted on the main support, includes a tape cutter and a fifth drive mechanism. The output end of the fifth drive mechanism is controlled to connect to the tape cutter to control the tape cutter to cut the tape.
[0011] Optionally, the first driving mechanism is further adapted to drive the first tape gripper back to its initial position along a direction parallel to the length of the tape after the second tape gripper has gripped the tape, and to drive the first tape gripper to grip the tape after returning to its initial position.
[0012] Optionally, the tape cutter is retractably disposed on the side of the first tape gripper facing the broken tape electrode.
[0013] Optionally, after the adhesive is applied, the second driving mechanism drives the first tape gripper to return to its initial position along a direction perpendicular to the adhesive application plate, and the third driving mechanism controls the second tape gripper to return to its initial position.
[0014] Optionally, the first drive mechanism and the fourth drive mechanism are implemented using servo electric cylinders.
[0015] Optionally, it also includes a tape storage mechanism for storing tape, the tape storage mechanism being disposed on the side of one of the first tape gripper and the second tape gripper facing away from the other, and including: a storage box, a shaft core, and a tensioning wheel.
[0016] Optionally, the adhesive board is provided with a cutting groove corresponding to the position of the tape cutter.
[0017] Optionally, a controller is also included to control the spacing between the first tape gripper and the second tape gripper in the initial state, so as to adapt to the application of tape rolls of different widths.
[0018] Optionally, the band breakage detection mechanism is an electrical coupling device.
[0019] Optionally, the electrode splicing device is suitable for electrode winding equipment, and the broken tape detection mechanism transmits the generated broken tape signal to the electrode winding equipment to stop the operation of the electrode winding equipment.
[0020] According to the battery electrode attaching device of this application embodiment, by setting an adhesive application mechanism including a first tape gripper and a second tape gripper, and a corresponding clamping mechanism including a clamping roller, automatic electrode roll pasting can be achieved by one person. Compared with the prior art battery electrode attaching device that requires two people to operate, it has the advantage of simple operation. In addition, the battery electrode attaching device of this application embodiment, by setting an adhesive application mechanism including a first tape gripper and a second tape gripper, and a corresponding clamping mechanism including a clamping roller, only requires five driving mechanisms, including a first driving mechanism, a second driving mechanism, a third driving mechanism, a fourth driving mechanism, and a fifth driving mechanism. Compared with the existing attaching device, the number of driving mechanisms is reduced, which can save costs and save the size of the battery electrode attaching device. It can also accommodate the battery electrode attaching device to complete the attaching at the broken tape position where space is limited. Therefore, the battery electrode attaching device of this application can meet the needs of attaching at more broken tape positions. Moreover, when applying adhesive, only one side of the broken tape electrode needs to be applied, reducing tape waste. Furthermore, the length of the adhesive plate can meet the splicing requirements of electrode rolls of different widths. Attached Figure Description
[0021] To achieve the foregoing and related objectives, certain illustrative aspects are described herein in conjunction with the following description and accompanying drawings. These aspects indicate various ways in which the principles disclosed herein may be practiced, and all aspects and their equivalents are intended to fall within the scope of the claimed subject matter. The foregoing and other objectives, features, and advantages of this disclosure will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings. Throughout this disclosure, the same reference numerals generally refer to the same parts or elements.
[0022] Figure 1 This is a first-view structural schematic diagram of a battery electrode bonding device 100 according to an embodiment of this application;
[0023] Figure 2 This is a second-view structural schematic diagram of a battery electrode bonding device 100 according to an embodiment of this application;
[0024] Figure 3 This is a third-view structural schematic diagram of a battery electrode bonding device 100 according to an embodiment of this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 100. Battery electrode attaching device; 110. Main support; 120. Adhesive plate; 121. Cutting groove; 130. Tape breakage detection mechanism; 140. Adhesive application mechanism; 141. First tape gripper; 142. Second tape gripper; 143. First drive mechanism; 144. Second drive mechanism; 145. Third drive mechanism; 1431. First servo motor; 1432. First transmission mechanism; 150. Pressing mechanism; 151. Tensioning roller; 152. Fourth drive mechanism; 1521. Second servo motor; 1522. Second transmission mechanism; 160. Cutting mechanism; 161. Tape cutter; 162. Fifth drive mechanism; 170. Tape storage mechanism; 171. Storage box; 172. Shaft core; 173. Tensioning wheel. Detailed Implementation
[0027] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
[0028] In the lithium battery manufacturing process, electrode roll processing inevitably results in tape breakage. The battery electrode splicing device according to this application can be used with various devices that operate the electrode roll (hereinafter collectively referred to as electrode roll equipment) to complete the splicing. For example, the battery electrode splicing device according to this application can be installed at a frequently broken location after the roller extrusion roll, or it can be rotatably installed at a breakage-prone location in the coating equipment. The following will combine... Figures 1 to 3 This utility model will now be described.
[0029] like Figures 1 to 3 As shown, a battery electrode bonding device according to one embodiment of this application includes a main support 110, an adhesive plate 120, a breakage detection mechanism 130, an adhesive application mechanism 140, a pressing mechanism 150, and a cutting mechanism 160. Wherein, as Figure 1-3 As shown in the diagram, the adhesive applicator 120 is positioned below the main support 110. When used in conjunction with the electrode winding equipment, the electrode sheet passes above the adhesive applicator 120 (i.e., on the side opposite to the tape breakage detection mechanism). The length of the adhesive applicator 120 can be matched with electrode rolls of various widths.
[0030] The tape breakage detection mechanism 130 is used to detect whether a tape breakage has occurred on the electrode sheet passing above the adhesive plate 120, and generates a tape breakage signal when a tape breakage is detected. The methods used in this invention to detect electrode tape breakage and generate a tape breakage signal upon detection are all existing computer programs or methods. Figure 1The schematic diagram of the battery electrode splicing device shows a breakage detection mechanism 130 positioned on the upper part of the main support 110, capable of real-time detection of electrode breakage below. The breakage detection mechanism 130 is electrically connected to the electrode winding equipment. In a specific example, the breakage detection mechanism 130 is a charge-coupled device (CCD), capable of sensing changes in light when an electrode breaks, thereby generating a breakage signal, which is transmitted to the electrode winding equipment. This causes the electrode winding equipment to stop operating, releasing electrode tension, thus reducing excessive electrode wear at the breakage point caused by continuous equipment operation and lowering breakage costs.
[0031] The adhesive applicator 140 includes a first tape gripper 141, a second tape gripper 142, a first drive mechanism 143, a second drive mechanism 144, and a third drive mechanism 145. For example... Figure 1-3 As shown, the first tape gripper 141 and the second tape gripper 142 are positioned above both ends of the adhesive application plate 120. Both the first tape gripper 141 and the second tape gripper 142 are in their initial positions. The initial state of the first tape gripper 141 is that it grips the free end of the tape. A first drive mechanism 143 is controlled and connected to the first tape gripper 141, and a second drive mechanism 144 and a third drive mechanism 145 are respectively controlled and connected to the first tape gripper 141 and the second tape gripper 142. The first drive mechanism 143 controls and drives the first tape gripper 141 to convey the tape to the vicinity of the second tape gripper 142, with the tape conveying direction perpendicular to the electrode conveying direction. After the second tape gripper 142 clamps the free end of the tape conveyed by the first tape gripper 141, the first drive mechanism 143 drives the first tape gripper 141 to release the tape and return it to its initial position along a direction parallel to the length of the tape, and also drives the first tape gripper 141 to clamp the tape at its corresponding position after returning to its initial position. In one specific implementation, the first drive mechanism 143 is a servo electric cylinder, including a first servo motor 1431 and a first transmission mechanism 1432. The second tape gripper 142 is initially in an open state, and the second drive mechanism 144 drives the second tape gripper 142 to clamp the tape conveyed by the first tape gripper 141. The servo electric cylinder is a modular product that integrates the servo motor and the first transmission mechanism. Because of closed-loop servo control, it has high control accuracy. It features low cost and flexible configuration, making it the best alternative to hydraulic cylinders and pneumatic cylinders, and is widely used in industries such as industry, military, entertainment facilities, and automobiles.
[0032] After the first tape gripper 141 conveys the tape to the second tape gripper 142, the second drive mechanism 144 and the third drive mechanism 145 respectively drive the first tape gripper 141 and the second tape gripper 142 to approach the adhesive plate 120, so that the tape is adhered to the broken tape electrode. According to a specific example of this embodiment, the second drive mechanism 144 and the third drive mechanism 145 can be implemented by an electric cylinder. In other examples, they are also implemented by a pneumatic cylinder to save costs.
[0033] like Figure 2 As shown, the clamping mechanism 150 includes a clamping roller 151 and a fourth drive mechanism 152, which is controlled to connect with the clamping roller 151. When the tape is adhered to the broken electrode sheet, the fourth drive mechanism 152 drives the clamping roller 151 to clamp the tape adhered to the broken electrode sheet, and drives the clamping roller to reciprocate and press the tape on the broken electrode sheet, ensuring a firm bond between the tape and the broken electrode sheet and preventing further breakage. Typically, the reciprocating rolling is set to twice. In a specific example, the fourth drive mechanism 152 is implemented using a servo electric cylinder, including a second servo motor 1521 and a second transmission mechanism 1522.
[0034] like Figure 3 As shown, the cutting mechanism 160 includes a tape cutter 161 and a fifth drive mechanism 162. The output end of the fifth drive mechanism 162 is connected to the tape cutter 161. The tape cutter 161 is located on the side of the first tape gripper 141 facing the broken tape electrode. Under the drive of the fifth drive mechanism 162, it moves telescopically in a direction perpendicular to the adhesive plate 120. After the tape is pressed by the pressing mechanism 150, the fifth drive mechanism 162 drives the tape cutter 161 to move telescopically in a direction perpendicular to the adhesive plate 120 to cut the tape. After the tape is cut, the first tape gripper returns to its initial state, i.e., it holds the free end of the tape. Furthermore, a cutting groove 121 is provided on the adhesive plate 120 corresponding to the position of the tape cutter 161 to ensure that the tape is cut neatly. In one specific implementation, the fifth drive mechanism 162 is implemented by a cylinder. By setting the tape cutter 161 on the side of the first tape gripper 141 facing the broken tape electrode, it can be ensured that the first tape gripper 141 can still hold the free end of the tape after the tape is cut, which facilitates the subsequent tape application operation.
[0035] After the adhesive is applied, the fourth drive mechanism 152 drives the clamping roller 151 to return to its corresponding initial position. Then, the second drive mechanism 144 and the third drive mechanism 145 drive the first tape gripper 141 and the second tape gripper 142 to return to their respective initial positions along the direction perpendicular to the adhesive plate.
[0036] The electrode splicing device according to this application also includes a controller, which controls the spacing between the first tape gripper and the second tape gripper in the initial state, thereby adapting to the application of electrode rolls of different widths.
[0037] like Figure 3 As shown, the electrode splicing device according to one embodiment of this application further includes a tape storage mechanism 170, which is disposed outside the first tape gripper 141, i.e., on the side facing away from the broken electrode. The tape storage mechanism 170 includes a storage box 171, a shaft core 172, and a tensioning wheel 173. The storage box 171 provides a storage space for the tape, the shaft core 172 is used to mount and support the tape, and the tensioning wheel 172 is used to tension the tape. In the working state, the tape is mounted on the shaft core 172, and the free end of the tape is held by the first tape gripper 141 after passing through the tensioning wheel 173.
[0038] It should be noted that the first drive mechanism, second drive mechanism, third drive mechanism, fourth drive mechanism and fifth drive mechanism in the embodiments of this application are all hardware such as cylinders and electric cylinders, and the computer programs involved in controlling the operation of these hardware are all existing methods commonly used in the art.
[0039] According to one embodiment of this application, the electrode splicing process for a broken strip is as follows: When the broken strip detection mechanism 130 detects a broken strip on the electrode, it generates a broken strip signal and transmits the signal to the electrode winding equipment, causing the equipment to stop operating and releasing the electrode tension, thereby reducing excessive wear on the electrode at the broken strip location due to continuous operation of the equipment. The electrode winding equipment can also notify the operator of a broken strip warning via a broken strip warning device. When the operator receives the warning, they tidy up the broken strip end of the electrode and fix it on the adhesive plate 120, then start the battery electrode splicing device. The battery electrode splicing device first drives the first tape gripper 141 to transfer the tape to the second tape gripper 142 via the first drive mechanism 143. The second tape gripper 142 clamps the free end of the tape. Under the drive of the first drive mechanism 143, the first tape gripper 141 returns to its initial position and clamps the tape. Then, driven by the second drive mechanism 144 and the third drive mechanism 145, the first tape gripper 141 and the second tape gripper 142 approach the adhesive application plate 120, so that the tape is adhered to the broken section of the electrode sheet. The fourth drive mechanism 152 drives the pressure roller 151 to press the tape adhered to the broken electrode sheet, and rolls it back and forth on the section of tape to press it firmly against the broken electrode sheet. Next, the fifth drive mechanism 162 drives the tape cutter 161 to cut the tape, and after the tape is cut, drives the tape cutter to return to the initial position. After the tape application is completed, the second drive mechanism 144 drives the first tape gripper 141 to return to the initial position, the third drive mechanism 145 drives the second tape gripper 142 to return to the initial position, and the fourth drive mechanism 152 drives the pressure roller 151 to return to the initial position. The above actions are repeated when a broken tape is detected again.
[0040] According to the battery electrode attaching device of this application embodiment, by setting an adhesive application mechanism including a first adhesive tape gripper and a second adhesive tape gripper, and a corresponding clamping mechanism including a clamping roller, automatic electrode roll pasting can be achieved by one person. Compared with the prior art battery electrode attaching device that requires two people to operate, it has the advantage of simple operation. In addition, the battery electrode attaching device of this application embodiment, by setting an adhesive application mechanism including a first adhesive tape gripper and a second adhesive tape gripper, and a corresponding clamping mechanism including a clamping roller, only requires five driving mechanisms, including a first driving mechanism, a second driving mechanism, a third driving mechanism, a fourth driving mechanism, and a fifth driving mechanism. Compared with the existing attaching device, the number of driving mechanisms is reduced, which can save costs and reduce the size of the battery electrode attaching device. It can also accommodate the battery electrode attaching device to complete the attaching at the broken tape location where space is limited. Therefore, the battery electrode attaching device of this application can meet the needs of attaching at more broken tape locations. Furthermore, when using the battery electrode splicing device according to the embodiments of this application for attaching battery electrode strips, adhesive only needs to be applied to the side of the broken electrode strip, which can reduce tape waste and lower costs. Additionally, the length of the adhesive application plate of the battery electrode splicing device according to the embodiments of this application can meet the splicing requirements of electrode rolls of different widths.
[0041] In the description of the embodiments of this application, it should be understood that the terms "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.
[0042] It should be understood that expressions such as “comprising” and “may include” used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as “comprising” and / or “having” are to be interpreted as indicating a particular characteristic, number, operation, constituent element, component, or combination thereof, but not to exclude the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.
[0043] In the embodiments of this application, expressions including ordinal numbers such as "first" and "second" may modify the elements. However, such elements are not limited by the above expressions. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used to distinguish one element from other elements.
[0044] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0045] In the description of the embodiments of this application, unless otherwise stated, "a plurality of" means two or more.
[0046] In the description of the embodiments of this application, when a component is referred to as "connected" or "accessed" to other components, it should be understood that the component is not only directly connected to or accessed to other components, but also that another component may exist between the component and other components. On the other hand, when a component is referred to as "directly connected" or "directly accessed" to other components, it should be understood that there is no component between them. When a component is referred to as "actively connected" to other components, it means that the positional relationship between the component and other components is variable, such as the relationship between a slide rail and a slider, where the slider can slide on the slide rail, and the slide rail and the track are actively connected. When a component is referred to as "fixedly connected" to other components, it means that the positional relationship between the component and other components after assembly is relatively fixed.
[0047] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.
[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Although this application has been described with reference to a limited number of embodiments, those skilled in the art will understand from the above description that other embodiments can be conceived within the scope of this application described herein. Furthermore, it should be noted that the language used in this specification has been chosen primarily for readability and instructional purposes, and not for interpreting or limiting the subject matter of this application. Therefore, many modifications and alterations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. The disclosure of this application is illustrative and not restrictive, and the scope of protection of this patent application shall be determined by the scope of the claims.
Claims
1. A battery electrode bonding device for attaching adhesive to broken electrode strips, characterized in that, include: Main support frame; An adhesive sheet is placed below the main support frame; A breakage detection mechanism is installed on the upper part of the main support, used to detect the breakage of the electrode and generate a breakage signal when a breakage is detected; An adhesive applicator, mounted on the main support, includes: a first tape gripper, a second tape gripper, a first drive mechanism, a second drive mechanism, and a third drive mechanism. The first tape gripper and the second tape gripper are respectively positioned near both ends of the adhesive applicator plate. The first drive mechanism is controlled and connected to the first tape gripper to drive the first tape gripper to convey the tape to the second tape gripper. The second drive mechanism and the third drive mechanism are respectively controlled and connected to the first tape gripper and the second tape gripper to control the first tape gripper and the second tape gripper to approach the adhesive applicator plate so that the tape is adhered to the broken electrode sheet. A pressing mechanism, disposed on the main support, includes: a pressing roller and a fourth driving mechanism, wherein the fourth driving mechanism is controlled to be connected to the pressing roller, and is used to control the pressing roller to press the tape pasted on the broken strip electrode sheet, and to control the pressing roller to reciprocate and roll on the tape pasted on the broken strip electrode sheet; A cutting mechanism, mounted on the main support, includes a tape cutter and a fifth drive mechanism. The output end of the fifth drive mechanism is controlled to connect to the tape cutter to control the tape cutter to cut the tape.
2. The battery electrode bonding device as described in claim 1, characterized in that, The first driving mechanism is also adapted to drive the first tape gripper back to its initial position along a direction parallel to the length of the tape after the second tape gripper has gripped the tape, and to drive the first tape gripper to grip the tape after returning to its initial position.
3. The battery electrode bonding device as described in claim 1, characterized in that, The tape cutter is retractably positioned on the side of the first tape gripper facing the broken tape electrode.
4. The battery electrode bonding device as described in claim 1, characterized in that, After the adhesive is applied, the second drive mechanism drives the first tape gripper to return to its initial position along a direction perpendicular to the adhesive application plate, and the third drive mechanism controls the second tape gripper to return to its initial position.
5. The battery electrode bonding device as described in claim 1, characterized in that, The first drive mechanism and the fourth drive mechanism are implemented by servo electric cylinders.
6. The battery electrode bonding device according to any one of claims 1-5, characterized in that, It also includes a tape storage mechanism for storing tape, which is disposed on the side of one of the first tape gripper and the second tape gripper facing away from the other, and includes: a storage box, a shaft core and a tensioning wheel.
7. The battery electrode bonding device according to any one of claims 1-5, characterized in that, The adhesive board is provided with a cutting groove at the position corresponding to the tape cutter.
8. The battery electrode bonding device according to any one of claims 1-5, characterized in that, It also includes a controller for controlling the spacing between the first tape gripper and the second tape gripper in the initial state to accommodate tape application of tape rolls of different widths.
9. The battery electrode bonding device according to any one of claims 1-5, characterized in that, The band breakage detection mechanism is an electrical coupling device.
10. The battery electrode bonding device according to any one of claims 1-5, characterized in that, The electrode splicing device is suitable for electrode winding equipment, and the broken tape detection mechanism transmits the generated broken tape signal to the electrode winding equipment to stop the operation of the electrode winding equipment.