A leveling device for new energy battery nickel sheet
By designing a leveling device for nickel sheets in new energy batteries, the problem of uneven nickel sheet surface is solved through a leveling frame and multiple extrusion leveling, improving the flatness and current density uniformity of the nickel sheets, reducing the risk of thermal runaway, and improving the overall performance of new energy batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIANYANG KUNDI ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-07
AI Technical Summary
The uneven surface of the cut nickel sheet can lead to uneven current density, which may cause local overheating and thermal runaway, affecting the performance of new energy batteries.
Design a leveling device for nickel sheets in new energy batteries, including a leveling frame, a leveling platform, a bearing plate, a carrier, a loading stage, a leveling plate, a cover plate, and a drive structure. Through the coordinated action of components such as a movable cylinder, a drive cylinder, and a hydraulic push rod, the nickel sheets are leveled by multiple compressions.
It improves the flatness of the nickel sheet, ensures the quality of the nickel sheet surface flatness, enhances the uniformity of current density, reduces the risk of thermal runaway, and improves the overall performance of new energy batteries.
Smart Images

Figure CN224463448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nickel sheet processing for new energy batteries, specifically a leveling device for nickel sheets in new energy batteries. Background Technology
[0002] Nickel foil, as a key component in new energy batteries, plays a significant role in battery performance optimization and structural design.
[0003] I. Electrical conductivity
[0004] High-efficiency electron transport: Nickel sheets, with their low resistance, establish a high-efficiency electron channel between the positive and negative electrodes, ensuring rapid charge migration during charging and discharging, which directly affects the battery's internal resistance and energy conversion efficiency;
[0005] Balanced current distribution: By optimizing geometric parameters (such as thickness gradient design) and spatial arrangement, current density can be balanced, energy density can be improved and cycle life can be extended;
[0006] Advantages of conductive materials: Nickel has better conductivity than some traditional materials (such as copper foil), reducing line loss and increasing output capacity.
[0007] II. Structural Support and Connection
[0008] Mechanical stability: Nickel sheets have high strength and can withstand mechanical and thermal stress during charging and discharging, ensuring the reliability of battery pack connections;
[0009] Flexible layout design: Special structures such as L-shaped nickel sheets facilitate flexible arrangement inside the battery pack, while dispersing current and reducing resistance;
[0010] Welding process adaptation: Combining advanced processes such as spot welding and laser welding, a firm connection between the nickel sheet and the battery cell is achieved, reducing deformation in the heat-affected zone.
[0011] III. Safety Protection
[0012] Corrosion and oxidation resistance: High-purity nickel-based alloys and anti-oxidation coating processes can prevent short circuits caused by dendrite penetration, and the surface oxide film can inhibit further corrosion;
[0013] High-temperature stability: During long-term battery operation, the nickel sheet is resistant to electrolyte corrosion and high-temperature environments, improving overall safety.
[0014] IV. Improvement of Material Performance
[0015] High-nickel ternary batteries: The increased proportion of nickel in the cathode material of ternary lithium batteries significantly improves energy density and driving range;
[0016] Cycle life optimization: The chemical stability of nickel helps extend the number of battery charge-discharge cycles and reduce operating costs.
[0017] After the entire nickel plate is cut, the surface of the cut nickel sheet is uneven. If it is directly processed into the internal components of the new energy battery, it will cause uneven current density, leading to local overheating or even thermal runaway, which will affect the performance of the entire new energy battery. Utility Model Content
[0018] The objective of this utility model is achieved through the following technical solution:
[0019] A leveling device for nickel sheets in new energy batteries includes a leveling frame, a leveling platform is mounted and connected to the top of the leveling frame, a support plate is movably mounted and connected to the leveling platform, a carrier is mounted and connected to the top of the support plate, and a loading platform for placing nickel sheets to be leveled is slidably arranged on the carrier.
[0020] The end of the platform away from the support plate is movably provided with several movable structures, and each movable structure is respectively mounted and connected with a plate for limiting the nickel sheet on the platform.
[0021] A cover plate is rotatably mounted on the support plate. One end of the cover plate near the platform is connected to a pressing plate for pressing against the entire flat plate. The other end of the cover plate away from the entire flat plate is rotatably connected to the support plate via a hinge. Several drive structures for rotating the cover plate are also connected to the other end of the cover plate away from the entire flat plate.
[0022] Preferably, all of the movable structures include a movable cylinder;
[0023] The conveying end rod of the movable cylinder is connected to a slide rail fixing block, which moves toward one end of the platform under the drive of the movable cylinder.
[0024] One end of the slide rail fixing block is used to slide and lift with the support base via a sliding guide rail, and the bottom end of the support base is used to slide horizontally with the entire platform via an electric slide rail.
[0025] The cylinder body of the movable cylinder is connected and fixed to the top of the support base via a fixing plate.
[0026] Preferably, a preload block is connected to one end of the slide rail fixing block near the platform, and the preload block is used to connect with the flat plate.
[0027] Preferably, a plurality of drive structures are provided, and each drive structure includes a drive cylinder;
[0028] The conveying end rod of the drive cylinder is connected to a drive sliding block, which is moved up and down towards the entire platform under the drive of the drive cylinder.
[0029] The bottom end of the driving sliding block is provided with a push block. One end of the push block is rotatably connected to one end of the cover plate through a rotating shaft, and a torsion spring is passed through the rotating shaft. The cover plate is elastically set with the push block through the torsion spring.
[0030] The other end of the push block is provided with a support pad. One end of the support pad passes through the push block elastically via a spring, and the bottom end of the support pad is designed to make contact with the entire platform.
[0031] The driving sliding block is used to contact the push block under the drive of the driving cylinder.
[0032] Preferably, the driving sliding block is connected to a vertically arranged guide beam via a sliding guide rail, the other end of the guide beam is used to connect to the top plate, the two sides of the top plate are respectively connected to support beams, and the bottom end of the support beam is used to slide with the entire platform via a guide rail.
[0033] Preferably, movable guide rods are connected to both sides of the bottom end of the support plate, and the entire platform is provided with a movable guide groove. The movable guide rods pass through the movable guide groove and are used to guide the platform along the movable guide groove.
[0034] Preferably, the bottom end of the movable guide rod is connected to the movable connecting beam;
[0035] The movable connecting beam is located below the entire platform and is horizontally slidable with the bottom of the entire platform via guide rails.
[0036] A hydraulic push rod is provided on one side of the movable connecting beam. The output end of the hydraulic push rod is hinged to the movable connecting beam, and the cylinder of the hydraulic push rod is hinged to the leveling frame.
[0037] The beneficial effects of this utility model are as follows: The purpose of this utility model is to provide a leveling device for nickel sheets used in new energy batteries. This leveling device is used to level nickel sheets that have been cut into pieces. Through this leveling device, the nickel sheets that have been cut into pieces can be leveled, thereby improving the leveling efficiency, saving leveling time, and ensuring the "flatness" quality of the nickel sheets in subsequent processing. Attached Figure Description
[0038] Figure 1 This is a schematic diagram of the connection structure of a leveling device for nickel sheets in new energy batteries according to the present invention.
[0039] Figure 2This is an exploded view of the connection structure of a leveling device for nickel sheets in new energy batteries according to the present invention.
[0040] Figure 3 This is a schematic diagram of the drive structure connection structure of a leveling device for nickel sheets in new energy batteries according to the present invention.
[0041] Figure 4 This is a schematic diagram of the support plate connection structure of a leveling device for nickel sheets in new energy batteries according to the present invention.
[0042] Figure 5 This is a schematic diagram of the movable structure connection of a leveling device for nickel sheets in new energy batteries according to the present invention.
[0043] In the diagram, 1-leveling frame, 2-leveling platform, 3-bearing plate, 4-moving cylinder, 5-drive cylinder, 31-cover plate, 32-carrier, 41-slide rail fixing block, 42-support base, 51-drive sliding block, 52-push block, 53-top plate, 521-support pad block. Detailed Implementation
[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0045] Example 1
[0046] like Figures 1 to 5 As shown, a leveling device for nickel sheets in new energy batteries is disclosed. This leveling device is used to level cut nickel sheets to improve leveling efficiency, save leveling time, and ensure the "flatness" quality of the nickel sheets in subsequent processing. The leveling device includes a leveling frame 1, a leveling platform 2 connected to the top of the leveling frame 1, a support plate 3 movably connected to the leveling platform 2, a carrier 32 connected to the top of the support plate 3, and a loading platform for placing the nickel sheets to be leveled slidably mounted on the carrier 32. Several movable structures are movably arranged at the end of the leveling platform 2 away from the support plate 3, and leveling plates for limiting the nickel sheets on the loading platforms are respectively installed on the movable structures. A cover plate 31 is rotatably arranged on the support plate 3. A pressing plate for pressing contact with the leveling plate is connected to the end of the cover plate 3 near the loading platform, and the end of the cover plate away from the leveling plate is rotatably connected to the support plate 3 via a hinge. Several drive structures for driving the cover plate to rotate are connected to the end of the cover plate away from the leveling plate.
[0047] In this embodiment, the nickel sheet to be leveled is placed on the carrier 31 mounted on the support plate 3; then the support plate 3 is moved to one end of the leveling plate; then the movement of the movable structure is controlled to "press" and level the nickel sheet on the stage through the leveling plate; for further leveling, the leveling plate is lifted to a certain height by the movable structure, the support plate 3 is moved further, and the cover plate 31 is positioned below the leveling plate; then the leveling plate is moved downward by the movable structure, the leveling plate contacts the cover plate 31, and the cover plate 31 is pushed to "rotate" towards the support plate 3; finally, the pressing plate on the cover plate 31 and the nickel sheet on the stage are pressed and leveled again.
[0048] Example 2
[0049] Based on Embodiment 1, the movable structure of this setup includes a movable cylinder 4; the conveying end rod of the movable cylinder 4 is connected to a slide rail fixing block 41, which moves towards one end of the platform under the drive of the movable cylinder 4; one side of the slide rail fixing block 41 is used to slide vertically and horizontally with the support base 42 via a sliding guide rail, and the bottom end of the support base 42 is used to slide horizontally with the entire platform 2 via an electric slide rail; the cylinder body of the movable cylinder 4 is connected and fixed to the top end of the support base 42 via a fixing plate. A pre-compression block is connected to the end of the slide rail fixing block 41 near the platform, and the pre-compression block is used to connect with the entire platform.
[0050] In this embodiment, the electric slide rail is controlled to move the support base 42 to a suitable distance from the platform. Then, the movable cylinder 4 is controlled to move downward, causing the slide rail fixing block 41 to move towards the nickel sheet on the platform under the sliding limit guidance of the support base 42. The nickel sheet on the platform is then pressed and flattened by the flat plate.
[0051] Example 3
[0052] Furthermore, the setup includes several drive structures, each including a drive cylinder 5. The conveying end of the drive cylinder 5 is connected to a drive sliding block 51. The drive sliding block 51, driven by the drive cylinder 5, moves up and down towards the platform 2. A push block 52 is located at the bottom of the drive sliding block 51. One end of the push block 52 is rotatably connected to one end of the cover plate 31 via a rotating shaft, and a torsion spring passes through the shaft. The cover plate 31 is elastically connected to the push block 52 via the torsion spring. A support pad 521 is located at the other end of the push block 52. One end of the support pad 521 elastically passes through the push block 52 via a spring, and the bottom end of the support pad 521 is used to make movable contact with the platform 2. The drive sliding block 51, driven by the drive cylinder 5, is used to contact the push block 52. Meanwhile, the drive sliding block 51 is connected to the vertically set guide beam through the sliding guide rail. The other end of the guide beam is used to connect to the top plate 53. The two sides of the top plate 53 are respectively connected to the support beams. The bottom end of the support beam is used to slide with the whole platform 2 through the guide rail.
[0053] In this embodiment, the drive cylinder 5 drives the drive sliding block 51 to move downward. The drive sliding block 51 contacts the push block 52, and under the elastic limiting action of the support pad 521, the drive sliding block 51 pushes the push block 52 to move relative to each other. The other end of the push block 52 is "elastically rotated" with the cover plate 31 through a torsion spring. This causes the other end of the cover plate 31 to "tilt up" and open, so that the nickel sheet that needs to be leveled can be placed on the platform.
[0054] Example 3
[0055] Furthermore, movable guide rods are connected to both sides of the bottom end of the bearing plate 3. The entire platform 2 has movable guide grooves, through which the movable guide rods pass and are used for movable guidance along the movable guide grooves. The bottom end of the movable guide rod is connected to the movable connecting beam. The movable connecting beam is located below the entire platform 2 and is horizontally slidable with the bottom end of the entire platform 2 via guide rails. A hydraulic push rod is provided on one side end of the movable connecting beam. The output end of the hydraulic push rod is hinged to the movable connecting beam, and the cylinder of the hydraulic push rod is hinged to the leveling frame.
[0056] In this embodiment, the movable connecting beam is moved relative to the bottom surface of the platform 2 by the extension and retraction of the hydraulic push rod under the guidance of the guide rail. This causes the bearing plate 3 connected to the connecting beam via the movable guide rod to move relative to the top surface of the platform 2, thereby adjusting the position of the platform on the bearing plate 3. This facilitates the placement of the nickel sheet that needs to be leveled and the removal of the leveled nickel sheet.
Claims
1. A leveling device for nickel sheets in new energy batteries, comprising a leveling frame, characterized in that, The top of the leveling frame is connected to a leveling platform, a support plate is movably connected to the leveling platform, a carrier is connected to the top of the support plate, and a platform for placing nickel sheets that need to be leveled is slidably arranged on the carrier. The end of the platform away from the support plate is movably provided with several movable structures, and each movable structure is respectively mounted and connected with a plate for limiting the nickel sheet on the platform. A cover plate is rotatably mounted on the support plate. One end of the cover plate near the platform is connected to a pressing plate for pressing against the entire flat plate. The other end of the cover plate away from the entire flat plate is rotatably connected to the support plate via a hinge. Several drive structures for rotating the cover plate are also connected to the other end of the cover plate away from the entire flat plate.
2. The leveling device for nickel sheets in new energy batteries according to claim 1, characterized in that, All of the movable structures include movable cylinders; The conveying end rod of the movable cylinder is connected to a slide rail fixing block, which moves toward one end of the platform under the drive of the movable cylinder. One end of the slide rail fixing block is used to slide and lift with the support base via a sliding guide rail, and the bottom end of the support base is used to slide horizontally with the entire platform via an electric slide rail. The cylinder body of the movable cylinder is connected and fixed to the top of the support base via a fixing plate.
3. A leveling device for nickel sheets in new energy batteries according to claim 2, characterized in that, A preload block is connected to one end of the slide rail fixing block near the platform, and the preload block is used to connect with the whole plate.
4. A leveling device for nickel sheets in new energy batteries according to claim 1, characterized in that, The drive structure is provided in several parts, and each drive structure includes a drive cylinder. The conveying end rod of the drive cylinder is connected to a drive sliding block, which is moved up and down towards the entire platform under the drive of the drive cylinder. The bottom end of the driving sliding block is provided with a push block. One end of the push block is rotatably connected to one end of the cover plate through a rotating shaft, and a torsion spring is passed through the rotating shaft. The cover plate is elastically set with the push block through the torsion spring. The other end of the push block is provided with a support pad. One end of the support pad passes through the push block elastically via a spring, and the bottom end of the support pad is designed to make contact with the entire platform. The driving sliding block is used to contact the push block under the drive of the driving cylinder.
5. A leveling device for nickel sheets in new energy batteries according to claim 4, characterized in that, The driving sliding block is connected to the vertically arranged guide beam via a sliding guide rail. The other end of the guide beam is used to connect to the top plate. Support beams are connected to both sides of the top plate. The bottom end of the support beam is used to slide with the entire platform via a guide rail.
6. A leveling device for nickel sheets in new energy batteries according to claim 1, characterized in that, Movable guide rods are connected to both sides of the bottom end of the support plate. The entire platform is provided with a movable guide groove. The movable guide rods pass through the movable guide groove and are used to guide the platform along the movable guide groove.
7. A leveling device for nickel sheets in new energy batteries according to claim 6, characterized in that, The bottom end of the movable guide rod is connected to the movable connecting beam; The movable connecting beam is located below the entire platform and is horizontally slidable with the bottom of the entire platform via guide rails. A hydraulic push rod is provided on one side of the movable connecting beam. The output end of the hydraulic push rod is hinged to the movable connecting beam, and the cylinder of the hydraulic push rod is hinged to the leveling frame.