Battery nickel sheet capable of improving overcurrent design capability

Abstract

The utility model discloses a battery nickel sheet capable of improving overcurrent design capability, which comprises a pair of battery cell brackets, positioning holes are arranged on the surfaces of the battery cell brackets, a plurality of cylindrical battery cells are arranged between the pair of battery cell brackets, electric overcurrent nickel sheets are arranged on the front sides and the rear sides of the pair of battery cell brackets, and the cylindrical battery cells are arranged in the positioning holes. The surface of the electric overcurrent nickel sheet is provided with a gap. According to the utility model, through the design of the notches with fractures on three surfaces, when the current of the single cylindrical battery cell is overlarge and is out of control, the generated current exceeds the current which can be borne by the overcurrent cross section, so that the notches at the corresponding positions are fused, and the whole battery is protected; the positive electrode and the negative electrode of the cylindrical battery cell are not in direct contact with the nickel sheet, so that huge loss such as fire caused by short circuit is avoided, and the nickel sheet with the same size can meet larger overcurrent design by reversely arranging the direction of the notch, so that the purposes of saving materials and reducing cost are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of battery nickel sheet technology, and in particular relates to a battery nickel sheet that can improve overcurrent design capability. Background Technology

[0002] Nickel tabs for electrical connections are materials used for circuit connections. They are typically made of pure nickel or nickel alloys and possess good conductivity and oxidation resistance, making them suitable for applications requiring high conductivity and corrosion resistance. Nickel tabs are frequently used in electrode connections in devices such as batteries, power tools, and electric vehicles, commonly used for battery electrode connections, busbars, and power plugs.

[0003] In the field of new energy storage, cylindrical battery cells typically use nickel sheets as electrical connectors, such as the fully contact welded nickel sheet and battery with the same type of nickel sheet described in CN111769247A. However, due to their structural design, some existing nickel sheets are unable to protect the entire battery when the current in a single cylindrical cell becomes too high and runs out of control. This can lead to overall battery failure and significant losses, such as fires. Furthermore, the positive and negative terminals of the cylindrical cell are often in direct contact with the nickel sheet, which can easily cause short circuits and lead to malfunctions. Therefore, this utility model provides a battery nickel sheet that can improve overcurrent design capabilities, which is of great significance in addressing these problems. Utility Model Content

[0004] This invention provides a battery nickel sheet that improves overcurrent design capability. The three-sided notch design ensures that when the current from a single cylindrical cell becomes excessive and runs out of control, the resulting current exceeds the current capacity of the overcurrent cross-section, causing the corresponding notch to melt and thus protecting the entire battery. The stamped step notch design ensures that the positive and negative electrodes of the cylindrical cell do not directly contact the nickel sheet, effectively preventing significant losses such as fires caused by short circuits. By reversing the notch direction, a nickel sheet of the same size can meet a larger overcurrent design, thereby saving materials and reducing costs. In summary, this invention solves the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a battery nickel sheet that can improve the overcurrent design capability, comprising a pair of cell supports, the surface of the cell supports having a plurality of positioning holes, and a plurality of cylindrical cells being arranged between the pair of cell supports. Overcurrent nickel sheets are arranged on the front and rear sides of the pair of cell supports, and the surface of the overcurrent nickel sheets has a plurality of notches.

[0007] Furthermore, the cylindrical battery cells number 60 and are arranged in a linear array.

[0008] Furthermore, the number of positioning holes is the same as that of the cylindrical battery cell, the hole diameter is equal to that of the cylindrical battery cell, and the positioning holes are distributed in a linear array.

[0009] Furthermore, the notch adopts a three-sided fracture design, one side of which is connected to the electrically conductive nickel sheet, and the notches on both sides of the electrically conductive nickel sheet are reversed in direction.

[0010] Furthermore, the notches are stamped step structures, and their number is the same as that of the positioning holes, with the center of each notch corresponding one-to-one with the center of each positioning hole.

[0011] The present invention has the following advantages over the prior art:

[0012] (1) In the present invention, a battery nickel sheet that can improve the overcurrent design capability is designed with a notch on three sides to ensure that when the current of a single cylindrical cell is too large and runs out of control, the current generated exceeds the current that the overcurrent section can withstand, so that the notch at the corresponding position melts and thus protects the overall battery.

[0013] (2) In the present invention, a battery nickel sheet that can improve the overcurrent design capability is designed with a notch in the stamping step to ensure that the positive and negative poles of the cylindrical cell do not directly contact the nickel sheet, thereby effectively avoiding huge losses such as fire caused by short circuit.

[0014] (3) When using the battery nickel sheet that can improve the overcurrent design capability, the notch direction is reversed so that the nickel sheet of the same size can meet the larger overcurrent design, thereby saving materials and reducing costs.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a battery nickel sheet that can improve overcurrent design capability according to this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the battery cell support in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the overcurrent nickel sheet in this utility model;

[0020] Figure 4 This is a top view of the overcurrent nickel sheet in this utility model;

[0021] Figure 5 This is a schematic diagram of the overcurrent flow of the nickel sheet in this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Cell support; 2. Positioning hole; 3. Cylindrical cell; 4. Overcurrent nickel strip; 5. Notch. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figure 1-5 As shown, this utility model discloses a battery nickel sheet that can improve the overcurrent design capability, including a pair of cell supports 1. The surface of the cell supports 1 is provided with a plurality of positioning holes 2, and a plurality of cylindrical cells 3 are arranged between the pair of cell supports 1. Overcurrent nickel sheets 4 are provided on the front and rear sides of the pair of cell supports 1. The surface of the overcurrent nickel sheets 4 is provided with a plurality of notches 5. The overcurrent nickel sheets 4 are welded to the cylindrical cells 3 into a whole by resistance welding.

[0027] There are 60 cylindrical cells 3 arranged in a linear array. The model of cylindrical cells 3 is 33140. The 60 cylindrical cells 3 can be used to form an overall battery pack.

[0028] The number of positioning holes 2 is the same as that of cylindrical cells 3, and their diameter is equal to that of cylindrical cells 3. The positioning holes 2 are arranged in a linear array. Both ends of each cylindrical cell 3 can be inserted into and attached to the corresponding positioning holes 2 on the surface of the cell support 1. The cylindrical cells 3 can be positioned and fixed through the positioning holes 2 to prevent their position from shifting.

[0029] Among them, the notch 5 adopts a three-sided break design. One side is connected to the overcurrent nickel sheet 4, and the notches 5 on both sides of the overcurrent nickel sheet 4 are reversed. When the current of a single cylindrical cell 3 is too large and goes out of control, the generated current exceeds the current that the overcurrent section can withstand, causing the notch 5 at the corresponding position to melt and thus protect the overall battery to avoid the overall battery going out of control and causing a fire.

[0030] Among them, the notch 5 is a stamped step structure, the number of which is the same as that of the positioning hole 2, and the center of each notch 5 corresponds one-to-one with the center of each positioning hole 2. By reversing the direction of the notch 5, the nickel sheet of the same size can meet the larger current design, thereby saving materials and reducing costs. When the electric current nickel sheet 4 is welded together with the cylindrical battery cell 3, the notch 5 of the stamped step design can ensure that the positive and negative poles of the cylindrical battery cell 3 do not directly contact the electric current nickel sheet 4, thereby effectively avoiding huge losses such as fire caused by short circuit.

[0031] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0032] All standard parts used in the application documents can be purchased from the market. All components in this application documents can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0033] The working principle of this utility model is as follows:

[0034] In use, the two ends of multiple cylindrical battery cells 3 can be inserted and attached to the corresponding positioning holes 2 on the surface of the battery cell bracket 1, so that the cylindrical battery cells 3 can be positioned and fixed through the positioning holes 2. There are 60 cylindrical battery cells 3, which can be used to form an overall battery pack. The current-carrying nickel sheet 4 is welded to the cylindrical battery cells 3 by resistance welding to form an integral whole. Electrode plates are electrically connected to the current-carrying nickel sheet 4, and conduction is possible through the electrode plates. At this time, the current can flow along the various notches 5 on the surface of the current-carrying nickel sheet 4. The notch 5 adopts a three-sided break design, one side of which is connected to the current-carrying nickel sheet 4. The plates 4 are connected, and the notches 5 on both sides of the overcurrent nickel plate 4 are reversed. When the current of a single cylindrical cell 3 is too large and goes out of control, the current generated exceeds the current that the overcurrent section can withstand, causing the notch 5 at the corresponding position to melt. This can protect the entire battery and prevent the battery from going out of control and causing a fire. The notch 5 is a stamped step structure. When the overcurrent nickel plate 4 and the cylindrical cell 3 are welded together, the design of the stamped step notch 5 can ensure that the positive and negative poles of the cylindrical cell 3 do not directly contact the overcurrent nickel plate 4, thereby effectively avoiding huge losses such as fire caused by short circuit.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A battery nickel plate capable of improving overcurrent design capability, characterized in that, Including a pair of battery cell support (1), the surface of the battery cell support (1) is provided with a plurality of positioning holes (2), and a plurality of cylindrical battery cells (3) are arranged between a pair of the battery cell support (1), the front side and the rear side of a pair of the battery cell support (1) are provided with electric overcurrent nickel sheet (4), the surface of the electric overcurrent nickel sheet (4) is provided with a plurality of notches (5); The number of the positioning hole (2) is same as the cylindrical battery cell (3), the aperture is equal to the diameter of the cylindrical battery cell (3), and the positioning hole (2) is linearly arrayed; The notch (5) adopts the design of three broken surfaces, one surface is connected with the electric overcurrent nickel sheet (4), and the direction of the notch (5) on both sides of the electric overcurrent nickel sheet (4) is reversed; The notch (5) is a punching step structure, the number is same as the positioning hole (2), and the center of each notch (5) and the center of each positioning hole (2) are one-to-one corresponding.

2. The battery nickel plate capable of improving overcurrent design capability according to claim 1, wherein The number of the cylindrical battery cell (3) is 60, and is linearly arrayed.

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