Lithium battery packaging heat insulation sealing head and packaging device
By using copper sealing head design with synthetic stone in the battery cell packaging process, the problem of inconsistent temperature of the battery cell aluminum-plastic film and the electrode position is solved, and the packaging strength is achieved while ensuring and avoiding the risk of electrode overmelting.
Patent Information
- Application Number
- CN202323255453.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2033-11-30
AI Technical Summary
In the existing battery cell packaging process, the packaging temperatures of the battery cell aluminum-plastic film and the pole ear position are inconsistent, resulting in the packaging strength that cannot be guaranteed at the same time, and the pole ear overmelting and liquid leakage corrosion may occur.
A lithium battery packaging heat-insulating seal head is designed, including a copper seal head and synthetic stone. The top surface of the copper seal head is equipped with an installation groove. The synthetic stone can be detachedly connected in the groove. The copper seal head contacts the aluminum-plastic film of the battery cell and the synthetic stone contacts the electrode ear. By setting synthetic stone on the copper seal head, the packaging temperature is provided to the aluminum-plastic film and the electrode ear position.
It ensures that the packaging strength of aluminum-plastic film and pole-elbow positions is maintained within the process range during the packaging process, avoiding the overmelting and liquid leakage corrosion caused by excessive temperature.
Smart Images
Figure CN222637427U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of battery cell packaging, and in particular to a lithium battery packaging thermal insulation head and packaging device. Background Art
[0002] In the existing battery cell packaging process, a thermal insulation head is required to contact the aluminum-plastic film around the battery cell and the tabs at both ends for the packaging process. Usually, the thermal insulation head is made of all-copper material. However, during the packaging process using the all-copper head, since the packaging temperature required for the battery cell aluminum-plastic film and the tab position is inconsistent, the packaging strength of the battery cell aluminum-plastic film and the tab position after packaging cannot be guaranteed to be within the process range at the same time, resulting in over-melting of the tabs of some battery cells and leakage corrosion. Utility Model Content
[0003] In order to solve the above technical problems, the present application provides a lithium battery packaging insulation head, including a copper head and a synthetic stone. An installation groove is opened on the top surface of the copper head, and the synthetic stone is detachably connected to the installation groove. The copper head is used to contact the aluminum-plastic film of the battery cell, and the synthetic stone contacts the tab of the battery cell. By arranging the synthetic stone on the copper head, the battery cell aluminum-plastic film and the tab can be provided with a corresponding packaging temperature during the packaging process, ensuring that the packaging strength of the battery cell aluminum-plastic film and the tab is maintained within the process range during the packaging process, avoiding the phenomenon of leakage corrosion caused by over-melting of the tab due to excessive temperature during the packaging process.
[0004] Preferably, it also includes a fixing clamp for fixing the battery cell, the two copper heads are respectively located on opposite sides of the fixing clamp, and the two copper heads are arranged opposite to the surface of the synthetic stone, and the two copper heads can move toward the fixing clamp. By symmetrically arranging the copper heads, the copper heads can clamp the aluminum-plastic film and the tab position of the packaged battery cell.
[0005] Preferably, it includes a mounting frame, on which a lifting assembly and a lifting assembly are arranged, the fixing clamp is located between the lifting assembly and the lifting assembly, and the two copper heads are respectively arranged at the driving ends of the lifting assembly and the lifting assembly. By setting the lifting assembly and the lifting assembly, the copper heads are driven close to or away from the battery cell to cooperate with the battery cell packaging process.
[0006] Preferably, the lifting assembly includes a fixed frame, a slider slidingly arranged in the mounting frame, and a first driving assembly arranged at the top of the mounting frame, the driving end of the first driving assembly is connected to the fixed frame, the slider is fixedly connected to the fixed frame, the copper head is installed on the fixed frame, and the fixed frame is driven to move by the first driving assembly to drive the copper head close to or away from the battery cell to cooperate with the battery cell packaging process.
[0007] Preferably, the lifting assembly also includes a hanging platform for installing the copper head suspended on one side of the fixing fixture. The hanging platform is fixedly connected to the copper head through a locking piece. By setting the hanging platform to match the copper head correspondingly set on the fixing fixture, the packaging process is facilitated.
[0008] Preferably, the lifting assembly includes a second driving assembly arranged at the bottom of the mounting frame, and the driving end of the second driving assembly is connected to the copper head. The copper head is driven by the second driving assembly to move closer to or away from the battery cell to cooperate with the battery cell packaging process.
[0009] Preferably, it also includes a rotating disk for installing the fixing fixture, and the rotating station is realized by setting the rotating disk to cooperate with the packaging process to completely package the battery cell and realize production line automation.
[0010] From the above, it can be seen that the application of the present application can achieve the following beneficial effects: the present application provides a copper head and a synthetic stone, and an installation groove is opened on the top surface of the copper head. The synthetic stone is detachably connected to the installation groove. The copper head is used to contact the aluminum-plastic film of the battery cell, and the synthetic stone contacts the pole ear of the battery cell. By arranging the synthetic stone on the copper head, the battery cell aluminum-plastic film and the pole ear can be provided with a suitable packaging temperature during the packaging process, ensuring that the packaging strength of the battery cell aluminum-plastic film and the pole ear is maintained within the process range during the packaging process, avoiding the phenomenon of leakage corrosion caused by over-melting of the pole ear due to excessive temperature during the packaging process. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments of the present application or the prior art. Obviously, the drawings described below are only part of the embodiments of the present application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.
[0012] Figure 1 This is a schematic diagram of the copper head structure of an embodiment of the present application.
[0013] Figure 2 This is an assembly diagram of the packaging device according to an embodiment of the present application.
[0014] Figure 3 This is a working schematic diagram of the copper head in an embodiment of the present application.
[0015] Attached photos
[0016] 10. Mounting frame; 20. Rotating disk; 30. Copper head; 40. Synthetic stone; 11. Lifting assembly; 12. Lifting assembly; 21. Fixing fixture; 31. Mounting slot; 111. Fixing frame; 112. Slider; 113. First drive assembly; 114. Suspension platform; 121. Second drive assembly. DETAILED DESCRIPTION
[0017] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application. Example
[0018] In order to solve the above technical problems, this embodiment provides a lithium battery packaging heat insulation head, such as Figure 1 As shown, it includes a copper head 30 and a synthetic stone 40. A mounting groove 31 is provided on the top surface of the copper head 30. The synthetic stone 40 is detachably connected to the mounting groove 31. The copper head 30 is used to contact the aluminum-plastic film of the battery cell, and the synthetic stone 40 contacts the pole ear of the battery cell. In some embodiments, the battery cell to be packaged enters the fixing fixture 21 through a manipulator or a conveying mechanism for conveying the battery cell. Copper heads 30 for heating the packaged battery cell are provided on both sides of the fixing fixture 21. The top of the copper head is provided with a synthetic stone 40. The synthetic stone 40 is fixed to the copper head 30 by a pin. A heating pipe is provided in the copper head 30 and the synthetic stone 40, thereby achieving the effect of heating the copper head 30. 0 and the synthetic stone 40 are heated. When the copper head 30 reaches the preset temperature, the temperature of the synthetic stone 40 is 30-50°C lower than the temperature of the copper head 30. The two copper heads 30 are closed together, and the copper head 30 contacts the aluminum-plastic film of the battery cell, so that the aluminum-plastic film is bonded and sealed. The synthetic stone 40 on the copper head 30 contacts the tab of the battery cell, so that the black glue of the tab is bonded. During the packaging process, the required packaging temperature can be provided to the aluminum-plastic film of the battery cell and the tab position, ensuring that the packaging strength of the aluminum-plastic film of the battery cell and the tab position is maintained within the process range during the packaging process, avoiding the over-melting of the tab due to excessive temperature during the packaging process, which causes leakage and corrosion.
[0019] Specifically, the copper head 30 and the synthetic stone 40 are separately connected with a heating tube and a temperature probe to realize temperature control of the copper head 30 and the synthetic stone 40. The copper head 30 and the synthetic stone 40 are spaced apart by a heat-insulating material, so that the temperatures of the copper head 30 and the synthetic stone 40 are different. The temperature of the synthetic stone 40 is lower than that of the copper head 30, thereby providing the required packaging temperature for the aluminum-plastic film of the battery cell and the tab position, thereby avoiding leakage corrosion caused by over-melting of the tab.
[0020] As a preferred embodiment, Figure 3 As shown, it also includes a fixing fixture 21 for fixing the battery cell, and the two copper heads 30 are respectively located on opposite sides of the fixing fixture 21, and the two copper heads 30 are arranged opposite to the surface of the synthetic stone 40. The two copper heads 30 can move toward the fixing fixture 21, and the rotating disk 20 is rotated to move the fixing fixture 21 to the position where the battery cell tab and the aluminum-plastic film match the copper heads 30, and the synthetic stone surfaces in the two copper heads 30 are correspondingly arranged on the upper and lower sides. The two copper heads 20 are respectively connected to the lifting assembly 11 and the lifting assembly 12, and the copper heads 30 are driven to move toward the battery cell by the driving assemblies of the lifting assembly 11 and the lifting assembly 12. By symmetrically arranging the copper heads, the copper heads can clamp the aluminum-plastic film and the tab position of the packaged battery cell, realize heat sealing of the aluminum-plastic film, and make the black glue of the tab bonded.
[0021] This embodiment also provides a packaging device, including the above-mentioned lithium battery packaging heat insulation head and the mounting frame 10, such as Figure 2 As shown, a lifting assembly 11 and a lifting assembly 12 are provided on the mounting frame 10, a fixing fixture 21 is located between the lifting assembly 11 and the lifting assembly 12, and two copper heads 30 are respectively provided at the driving ends of the lifting assembly 11 and the lifting assembly 12. By rotating the rotating disk 20, the fixing fixture 21 is moved between the lifting assembly 11 and the lifting assembly 12, and the upper copper head 30 is driven by the first driving assembly 113 arranged on the top of the mounting frame 10 to approach or move away from the battery cell to be packaged, and the copper head 30 located below is driven by the second driving assembly 121 arranged at the bottom of the mounting frame 10 to approach or move away from the battery cell to be packaged. By setting the lifting assembly and the lifting assembly, the two copper heads 30 are driven to approach or move away from the battery cell at the same time to cooperate in realizing the battery cell packaging process.
[0022] In order to realize the driving of the copper head 30 to move up and down to complete the packaging process, as a preferred embodiment, the lifting assembly 11 includes a fixed frame 111, a slider 112 slidably arranged in the mounting frame 10, and a first driving assembly 113 arranged at the top of the mounting frame 10. The driving end of the first driving assembly 113 is connected to the fixed frame 111, the slider 112 is fixedly connected to the fixed frame 111, and the copper head 30 is installed on the fixed frame 111. For example, the first driving assembly 113 can be a cylinder, and then when working, the copper head 30 is fixed to the fixed frame 111 by bolts. 11, the other end of the fixing frame 111 is connected to a slider 112 which is slidably set in the slide groove on the mounting frame 10, and the fixing frame 111 is driven to move by the first driving component 113, thereby driving the copper head 30 to move toward the battery cell, so that the copper head 30 can perform the packaging process. When the packaging process is completed, the fixing frame 111 is driven to move by the first driving component 113, thereby driving the copper head 30 to move away from the battery cell and enter the state to be packaged. The fixing frame is driven to move by the first driving component to drive the copper head close to or away from the battery cell to cooperate with the battery cell packaging process.
[0023] As a preferred embodiment, the lifting assembly 11 also includes a hanging platform 114 for installing a copper head 30 suspended on one side of the fixing fixture 21. The hanging platform 114 is fixedly connected to the copper head 30 by a locking member. In some embodiments, a hanging platform 114 connected by bolts is installed on the left and right sides of the fixing frame 111. By respectively installing the copper head 30 on the hanging platforms 114 on both sides, the copper head is correspondingly set on the fixing fixture, which facilitates the implementation of the packaging process.
[0024] As a preferred embodiment, the lifting assembly 12 includes a second drive assembly 121 arranged at the bottom of the mounting frame 10, and the drive end of the second drive assembly 121 is connected to the copper head 30. Exemplarily, the second drive assembly 121 can be a cylinder, and then when working, the bottom of the copper head 30 is connected to the drive end of the second drive assembly 121, and the copper head 30 is driven to move by the second drive assembly 121, so that the copper head 30 can perform the packaging process. When the packaging process is completed, the second drive assembly 121 drives the copper head 30 to move away from the battery cell and enter the state to be packaged, so that the copper head is driven by the second drive assembly to move close to or away from the battery cell to cooperate with the battery cell packaging process.
[0025] As a preferred embodiment, it also includes a rotating disk 20 for installing a fixing fixture 21. The rotating disk 20 is provided on one side of the mounting frame 10, and a fixing fixture 21 for placing the battery cell is provided on the rotating disk 20. By setting the rotating disk, a rotating work station is realized to cooperate with the packaging process to completely package the battery cell and realize production line automation.
[0026] To sum up, in one or more embodiments of the present application, the present application provides a mounting groove on the top surface of the copper head and the synthetic stone, and the synthetic stone is detachably connected to the mounting groove. The copper head is used to contact the aluminum-plastic film of the battery cell, and the synthetic stone is in contact with the pole ear of the battery cell. By arranging the synthetic stone on the copper head, the battery cell aluminum-plastic film and the pole ear can be provided with a suitable packaging temperature during the packaging process, thereby ensuring that the packaging strength of the battery cell aluminum-plastic film and the pole ear is maintained within the process range during the packaging process, thereby avoiding the phenomenon of leakage corrosion caused by over-melting of the pole ear due to excessive temperature during the packaging process.
[0027] The above-described embodiments do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the scope of protection of this technical solution.
Claims
1. A lithium battery packaging heat-insulating head, characterized in that: The invention comprises a copper sealing head (30) and a synthetic stone (40), wherein a mounting groove (31) is provided on the top surface of the copper sealing head (30), the synthetic stone (40) is detachably connected in the mounting groove (31), the copper sealing head (30) is used to contact the aluminum-plastic film of the battery cell, and the synthetic stone (40) contacts the pole ear of the battery cell.
2. The lithium battery packaging heat-insulating head according to claim 1, characterized in that: It also includes a fixing fixture (21) for fixing the battery core, the two copper seals (30) are respectively located on two opposite sides of the fixing fixture (21), and the two copper seals (30) are arranged opposite to the surface of the synthetic stone (40), and the two copper seals (30) can move toward the fixing fixture (21).
3. A packaging device, characterized in that: The invention comprises the lithium battery packaging heat-insulating sealing head as claimed in claim 2, and a mounting frame (10), wherein a lifting assembly (11) and a lifting assembly (12) are arranged on the mounting frame (10), the fixing fixture (21) is located between the lifting assembly (11) and the lifting assembly (12), and the two copper sealing heads (30) are respectively arranged at the driving ends of the lifting assembly (11) and the lifting assembly (12).
4. The packaging device according to claim 3, characterized in that: The lifting assembly (11) comprises a fixed frame (111), a sliding block (112) slidably arranged in the mounting frame (10), and a first driving assembly (113) arranged at the top end of the mounting frame (10), wherein a driving end of the first driving assembly (113) is connected to the fixed frame (111), the sliding block (112) is fixedly connected to the fixed frame (111), and the copper seal head (30) is mounted on the fixed frame (111).
5. The packaging device according to claim 4, characterized in that: The lifting assembly (11) further comprises a suspension platform (114) for mounting the copper seal head (30) suspended on one side of the fixing fixture (21); the suspension platform (114) and the copper seal head (30) are fixedly connected via a locking member.
6. The packaging device according to claim 3, characterized in that: The lifting assembly (12) comprises a second driving assembly (121) arranged at the bottom of the mounting frame (10), and a driving end of the second driving assembly (121) is connected to the copper sealing head (30).
7. The packaging device according to claim 3, characterized in that: It also includes a rotating disk (20) for mounting the fixing fixture (21).