Copper-plated and nickel-plated negative electrode tab with high HF resistance
By setting protective and positioning structures on the negative electrode tab, especially the nickel plating layer and positioning holes, the problem of inaccurate positioning of the negative electrode tab during installation is solved, thereby improving the battery's connection sealing and safety.
Patent Information
- Application Number
- CN202423240690.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing negative electrode tabs make it difficult to accurately position the connection end and the battery during installation and fixing, affecting the accuracy of the fixing.
A copper-plated and nickel-plated negative electrode tab with high HF resistance is designed. It adopts a protective structure and positioning structure on the outside of the substrate layer, including a plating layer, an adhesive layer, a tab adhesive layer, a bonding layer, a positioning piece, and a positioning hole. Precise positioning is achieved through the positioning hole and positioning piece. The plating layer is a nickel plating layer to improve corrosion resistance and HF resistance.
It enables convenient positioning of the negative electrode tab and improves the sealing, corrosion resistance and mechanical strength of the battery connection, ensuring the safety and reliability of the battery during use.
Smart Images
Figure CN223858397U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery technology field especially relates to a kind of copper plating nickel plating negative pole lug of high HF resistance. BACKGROUND
[0002] With the rapid development of electric vehicles, energy storage power stations, portable electronic devices and other fields, as an important energy storage device, the performance requirements of lithium ion batteries are also increasing. Especially in high-rate discharge, long cycle life, high safety and other aspects, more stringent requirements are put forward for the performance of lithium ion batteries. The negative pole lug, as a key component connecting the negative pole of the battery and the external circuit in the lithium ion battery, directly affects the overall performance of the battery. Therefore, a copper plating nickel plating negative pole lug with high HF resistance needs to be designed.
[0003] The existing negative pole lug is not convenient to accurately position the connection end of the pole lug and the battery during installation and fixation, which affects the accuracy of the pole lug during fixation. Therefore, a copper plating nickel plating negative pole lug with high HF resistance that can be easily positioned needs to be designed. SUMMARY
[0004] The utility model aims at providing a kind of copper plating nickel plating negative pole lug with high HF resistance to solve the defect that the existing negative pole lug is not convenient to accurately position the connection end of the pole lug and the battery during installation and fixation, which affects the accuracy of the pole lug during fixation.
[0005] To solve the above technical problems, the utility model provides the following technical scheme: a copper plating nickel plating negative pole lug with high HF resistance, including substrate layer;
[0006] The outer side of the substrate layer is provided with a protective structure;
[0007] The two sides of the substrate layer are provided with positioning structures, and the positioning structures include adhesive layers, positioning sheets and positioning holes.
[0008] The adhesive layers are fixed to the two sides of the substrate layer, the positioning sheets are fixed to the side of the adhesive layers away from the substrate layer, and the positioning holes are uniformly arranged in the positioning sheets.
[0009] Further, the protective structure includes a plating layer, an adhesive layer and a pole lug adhesive layer, the plating layer is fixed to the two sides of the substrate layer, the outer side of the plating layer is provided with an adhesive layer, and the outer side of the adhesive layer is fixed with a pole lug adhesive layer.
[0010] Further, the plating layer is symmetrically distributed on the two sides of the substrate layer.
[0011] Further, the plating layer is a nickel plating layer.
[0012] Further, the pole lug adhesive layer is a modified polypropylene layer.
[0013] Further, the positioning pieces are symmetrically distributed on both sides of the substrate layer.
[0014] Further, the positioning holes have a circular design in a top view.
[0015] The copper-nickel-plated negative tab provided by the utility model has the advantages that:
[0016] When the substrate layer and the one end of the battery are fixed, positioning points are determined on both sides of the battery mounting end, the positioning holes are then moved to the positions of the positioning points, and the substrate layer can be positioned at a suitable position through the positioning holes and the positioning pieces, so that the device has the function of convenient positioning, and the convenience of the negative tab in use is improved.
[0017] The plating layer is actually a nickel plating layer, has excellent corrosion resistance and HF resistance, the tab rubber layer can enhance the sealing property, corrosion resistance and mechanical strength of the connection between the tab and the battery, so as to ensure the safety and reliability of the battery in use, the device has the function of protection, and the safety of the negative tab in use is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0020] Figure 3 It is a schematic diagram of the front view cross-sectional structure of the utility model;
[0021] Figure 4 It is a schematic diagram of the top view structure of the utility model;
[0022] Figure 5 It is a schematic diagram of the Figure 4 enlarged structure of the middle A of the utility model;
[0023] Figure 6 It is a schematic diagram of the side view cross-sectional structure of the utility model.
[0024] Reference signs in the drawings: 1, substrate layer; 2, protection structure; 21, plating layer; 22, adhesive layer; 23, tab rubber layer; 3, positioning structure; 31, adhesive layer; 32, positioning piece; 33, positioning hole. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0026] Please refer to Figures 1-6 The utility model provides a kind of high HF resistance copper plating nickel plating negative tab, including substrate layer 1.
[0027] Refer to Figures 1-6 The outer side of substrate layer 1 is provided with protective structure 2, and protective structure 2 includes plating layer 21, adhesive layer 22 and tab rubber layer 23, plating layer 21 is fixed on the two sides of substrate layer 1, the outer side of plating layer 21 is provided with adhesive layer 22, the outer side of adhesive layer 22 is fixed with tab rubber layer 23, plating layer 21 is symmetrically distributed on the two sides of substrate layer 1, and plating layer 21 is nickel plating layer, and tab rubber layer 23 is modified polypropylene layer.
[0028] Plating layer 21 is actually nickel plating layer, which has excellent corrosion resistance and HF resistance, and tab rubber layer 23 can enhance the sealing property, corrosion resistance and mechanical strength of the connection between the tab and the battery, to ensure the safety and reliability of the battery during use.
[0029] Refer to Figure 1 , Figure 2 And Figures 4-6 The two sides of substrate layer 1 are provided with positioning structure 3, and positioning structure 3 includes adhesive layer 31, positioning sheet 32 and positioning hole 33, adhesive layer 31 is fixed on the two sides of substrate layer 1, positioning sheet 32 is fixed on the side of adhesive layer 31 away from substrate layer 1, and positioning hole 33 is uniformly arranged in the inside of positioning sheet 32. Protective structure 2 includes plating layer 21, adhesive layer 22 and tab rubber layer 23, plating layer 21 is fixed on the two sides of substrate layer 1, the outer side of plating layer 21 is provided with adhesive layer 22, the outer side of adhesive layer 22 is fixed with tab rubber layer 23, positioning sheet 32 is symmetrically distributed on the two sides of substrate layer 1, and the top view section of positioning hole 33 is circular design.
[0030] When fixing substrate layer 1 and one end of the battery, positioning points are determined on the two sides of the battery mounting end, and then positioning hole 33 is moved to the position of the positioning point, so that substrate layer 1 can be positioned to the appropriate position through positioning hole 33 and positioning sheet 32.
[0031] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A high-HF-resistance copper-plated nickel-plated negative tab, comprising a substrate layer (1); Characterized in that: The outer side of the substrate layer (1) is provided with a protective structure (2); Both sides of the substrate layer (1) are provided with a positioning structure (3), which comprises a glue layer (31), a positioning sheet (32) and a positioning hole (33); The glue layer (31) is fixed on both sides of the substrate layer (1), the positioning sheet (32) is fixed on the side of the glue layer (31) away from the substrate layer (1), and the positioning holes (33) are uniformly arranged in the positioning sheet (32).
2. The high HF-resistant copper and nickel plated negative tab according to claim 1, characterized in that: The protective structure (2) comprises a plating layer (21), an adhesive layer (22) and a tab adhesive layer (23), the plating layer (21) is fixed on both sides of the substrate layer (1), the adhesive layer (22) is arranged on the outer side of the plating layer (21), and the tab adhesive layer (23) is fixed on the outer side of the adhesive layer (22).
3. The high-HF-resistant copper-plated nickel negative tab according to claim 2, characterized in that: The plating layer (21) is symmetrically distributed on both sides of the substrate layer (1).
4. The high-HF-resistant copper-plated nickel negative tab according to claim 2, characterized in that: The plating layer (21) is a nickel plating layer.
5. The high HF-resistant copper and nickel plated negative tab according to claim 2, characterized in that: The tab adhesive layer (23) is a modified polypropylene layer.
6. The high HF-resistant copper and nickel plated negative tab according to claim 1, wherein: The positioning sheet (32) is symmetrically distributed on both sides of the substrate layer (1).
7. The high HF-resistant copper and nickel plated negative tab according to claim 1, wherein: The top view of the positioning hole (33) is circular.