Bending-resistant lithium battery piece-type tab

Abstract

The utility model discloses an anti-bending lithium battery piece-type tab which comprises a tab assembly, the tab assembly comprises an upper connecting end, the outer wall of the upper connecting end is sleeved with a protective sleeve, the inner side of the protective sleeve is provided with a friction pad, the inner side of the friction pad is attached to the two sides of the upper connecting end, and the protective sleeve is of a rectangular structure. The upper connecting end is provided with an anti-bending assembly. The anti-bending assembly comprises a nickel plating layer arranged on the outer wall of the upper connecting end, conductive protection layers are arranged at the two ends of the nickel plating layer and are made of conductive foam, the interior of each conductive protection layer is of a hollow structure, a reinforcing net and reinforcing ribs are arranged in each conductive protection layer, the reinforcing ribs are arranged at one end of each reinforcing net, and the reinforcing ribs are arranged at the other end of each reinforcing net. The other end of the reinforcing net is attached to the surface of the nickel plating layer, the reinforcing net is made of metal and used for guaranteeing the conductivity of the upper connecting end, and the reinforcing rib is of a triangular structure. According to the device, the bending resistance of the upper connecting end can be improved, so that the service life of the upper connecting end of the tab is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery tabs, in particular to a bending-resistant lithium battery sheet tab. Background Art

[0002] The tabs of lithium batteries are important components that connect the internal electrodes (positive and negative) of the battery with the external circuit. The design and quality of the tabs directly affect the performance and safety of the battery.

[0003] Currently, the tabs of lithium batteries are divided into two parts, the lower part is used to connect to the lithium battery, and the upper part is used to connect to the cable. Since the upper part of the tab is exposed to the outside, it needs to be welded and connected to the cable at the same time. Therefore, the upper part of the tab is easily bent during use, resulting in the upper part of the tab breaking, affecting the service life of the tab, and needs to be improved. Utility Model Content

[0004] The purpose of the present invention is to provide a bending-resistant lithium battery tab to solve the problem of easy breakage of the upper portion of the tab in the above-mentioned background art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a bending-resistant lithium battery tab, comprising a tab assembly, the tab assembly comprising an upper connecting end, the upper connecting end being provided with an anti-bending assembly;

[0006] The anti-bending component includes a nickel-plated layer arranged on the outer wall of the upper connecting end, and a conductive protective layer is arranged at both ends of the nickel-plated layer. A reinforcing mesh and reinforcing ribs are arranged inside the conductive protective layer, and the reinforcing ribs are triangular in structure.

[0007] Preferably, the outer wall of the upper connecting end is provided with a protective sleeve, and the protective sleeve has a rectangular structure.

[0008] Preferably, a friction pad is provided on the inner side of the protective sleeve, and the inner side of the friction pad is fitted on both sides of the upper connecting end.

[0009] Preferably, the conductive protective layer is made of conductive foam, and the conductive protective layer has a hollow structure.

[0010] Preferably, one end of the reinforcing mesh is provided with reinforcing ribs, and the other end of the reinforcing mesh is attached to the surface of the nickel-plated layer.

[0011] Preferably, the reinforcing mesh is made of metal to ensure the electrical conductivity of the upper connecting end.

[0012] Preferably, one end of the upper connecting end is connected to the lower connecting end, and the upper connecting end and the lower connecting end are connected in one piece.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) This device can improve the bending resistance of the upper connecting end, thereby ensuring the service life of the upper connecting end of the tab.

[0015] (2) This device provides a conductive protective layer on the outer wall of the upper connecting end, and provides a reinforcing net and reinforcing ribs inside the conductive protective layer, so as to support and protect the front and rear ends of the upper connecting end, avoid the upper connecting end from breaking after bending, and improve the bending resistance of the upper connecting end.

[0016] (3) The device is provided with a protective sleeve on the outer wall of the upper connecting end. The protective sleeve can move on the outer wall of the upper connecting end and can move to the area of ​​the upper connecting end that is easy to bend, thereby regionally strengthening the upper connecting end and improving the bending resistance of the upper connecting end. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a bending-resistant lithium battery tab structure of the utility model;

[0018] Figure 2 This utility model is a kind of anti-bending lithium battery tab Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a top cross-sectional view of a conductive protective layer of a bending-resistant lithium battery tab according to the present invention;

[0020] Figure 4 The utility model is a side cross-sectional view of a bending-resistant lithium battery tab.

[0021] In the figure: 1. Tab assembly; 11. Upper connecting end; 12. Lower connecting end; 2. Anti-bending assembly; 21. Nickel plating layer; 22. Conductive protective layer; 23. Protective sleeve; 24. Friction pad; 25. Reinforcement mesh; 26. Reinforcement rib. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4The utility model provides a technical solution: a bending-resistant lithium battery tab, comprising a tab assembly 1, the tab assembly 1 comprising an upper connecting end 11, an outer wall of the upper connecting end 11 being provided with a protective sleeve 23, the protective sleeve 23 being a rectangular structure; a friction pad 24 being provided on the inner side of the protective sleeve 23, the inner sides of the friction pad 24 being fitted to both sides of the upper connecting end 11; the protective sleeve 23 of this structure can provide enhanced protection for the bent area and improve the practicality of the protection; the friction pad 24 can not only enable the protective sleeve 23 to move, but also prevent the protective sleeve 23 from being separated from the upper connecting end 11, so that the protective sleeve 23 can stay at any height; an anti-bending assembly 2 is provided on the upper connecting end 11;

[0024] The anti-bending component 2 includes a nickel-plated layer 21 provided on the outer wall of the upper connecting end 11, and a conductive protective layer 22 is provided at both ends of the nickel-plated layer 21. The conductive protective layer 22 is made of conductive foam and has a hollow structure inside. The conductive protective layer 22 of this structure can protect the upper connecting end 11, thereby avoiding damage from external factors and reducing the probability of the upper connecting end 11 breaking. A reinforcing mesh 25 and a reinforcing rib 26 are provided inside the conductive protective layer 22. The reinforcing rib 26 is provided at one end of the reinforcing mesh 25, and the other end of the reinforcing mesh 25 is attached to the surface of the nickel-plated layer 21. The nickel-plated layer 21 of this structure can improve the corrosion resistance and wear resistance of the upper connecting end 11. ; The material of the reinforcing net 25 is metal, which is used to ensure the conductive performance of the upper connecting end 11; the reinforcing net 25 of this structure is attached to the upper connecting end 11, which not only ensures the conductive performance but also strengthens the bending resistance of the upper connecting end 11, thereby improving the service life of the upper connecting end 11; one end of the upper connecting end 11 is connected to the lower connecting end 12, and the upper connecting end 11 and the lower connecting end 12 are connected in one piece; the lower connecting end 12 of this structure is used to connect to a lithium battery, and the upper connecting end 11 is used to connect cables, etc.; the reinforcing ribs 26 are triangular in structure; the device can support the reinforcing net 25 through the reinforcing ribs 26 to avoid breakage of the reinforcing net 25 and the upper connecting end 11.

[0025] Working principle: When using the anti-bending lithium battery sheet-type ear, after connecting the lower connecting end 12 to the lithium battery, connect the cable to the end of the upper connecting end 11. During the connection process, if there is a bent part on the upper connecting end 11, the protective sleeve 23 can be pushed on the outer wall of the upper connecting end 11 to move the protective sleeve 23 on the outer wall of the upper connecting end 11. During the movement of the protective sleeve 23, the friction pad 24 on the inner side of the protective sleeve 23 rubs and moves on the outer wall of the upper connecting end 11. When the protective sleeve 23 and the friction pad 24 are located in the bending area of ​​the upper connecting end 11, the bending area of ​​the upper connecting end 11 can be protected. In the process of using this device, the reinforcing mesh 25 and the reinforcing ribs 26 at both ends of the upper connecting end 11 can support and reinforce the upper connecting end 11. At the same time, the conductive protective layer 22 can prevent the upper connecting end 11 from wear, thereby improving the service life of the upper connecting end 11.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bending-resistant lithium battery tab, comprising a tab assembly (1), wherein the tab assembly (1) includes an upper connecting end (11), and is characterized in that: An anti-bending component (2) is provided on the upper connecting end (11); The anti-bending component (2) comprises a nickel-plated layer (21) provided on the outer wall of the upper connecting end (11), a conductive protective layer (22) provided at both ends of the nickel-plated layer (21), a reinforcing mesh (25) and reinforcing ribs (26) provided inside the conductive protective layer (22), and the reinforcing ribs (26) are in a triangular structure.

2. The anti-bending lithium battery tab according to claim 1, characterized in that: The outer wall of the upper connecting end (11) is provided with a protective sleeve (23), and the protective sleeve (23) is a rectangular structure.

3. The anti-bending lithium battery tab according to claim 2, characterized in that: A friction pad (24) is provided on the inner side of the protective sleeve (23), and the inner side of the friction pad (24) is attached to both sides of the upper connecting end (11).

4. The anti-bending lithium battery tab according to claim 1, characterized in that: The conductive protective layer (22) is made of conductive foam, and the interior of the conductive protective layer (22) is a hollow structure.

5. The anti-bending lithium battery tab according to claim 1, characterized in that: One end of the reinforcing net (25) is provided with a reinforcing rib (26), and the other end of the reinforcing net (25) is attached to the surface of the nickel-plated layer (21).

6. The anti-bending lithium battery tab according to claim 1, characterized in that: The reinforcing net (25) is made of metal and is used to ensure the electrical conductivity of the upper connecting end (11).

7. The anti-bending lithium battery tab according to claim 1, characterized in that: One end of the upper connecting end (11) is connected to the lower connecting end (12), and the upper connecting end (11) and the lower connecting end (12) are connected in one piece.

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