Single-end tab battery

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a single-end tab battery, which comprises a protective shell, a battery core, a lead wire, a lead wire, a lead wire, a lead wire, a lead wire and a lead wire, the protection plate is arranged at the top of the protection shell and used for sealing the open end of the top of the protection shell, an insulating ring is arranged at the top of the protection plate, the protection plate is divided into an outer ring positive electrode area and an inner ring negative electrode area through the insulating ring, the positive electrode lug is electrically connected to the outer ring positive electrode area through a lead, and the negative electrode lug is electrically connected to the inner ring negative electrode area through a lead. The outer-ring positive electrode region and the inner-ring negative electrode region are both used for being in contact with contacts of the electronic equipment so as to realize power conduction among the outer-ring positive electrode region, the inner-ring negative electrode region and the electronic equipment; the insulating rubber sleeve is arranged at the top of the protective shell, and a supporting flange is arranged in the insulating rubber sleeve in the radial direction and used for installing the protective plate. The battery mounting and dismounting convenience is improved, and the stability of the overall structure of the battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a single-head tab battery. Background Art

[0002] Currently, most batteries on the market use soft packaging and two-end ear technology. The usage scenarios of this type of battery are: Bluetooth headsets, e-cigarettes, capacitive pens, stylus pens, smart pens and other small smart wearable products. Since the positive and negative poles of this type of battery are at both ends of the battery, additional leads are required. When the battery with added leads is directly used in the above-mentioned products, the disassembly and assembly of the battery will become difficult, which is not convenient for the subsequent maintenance of the product and needs to be solved urgently. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the present application provides a single-tab battery.

[0004] The above invention objectives of the present application are achieved through the following technical solutions:

[0005] A single-end tab battery, comprising a finished battery cell, wherein two ends of the finished battery cell are respectively provided with a positive tab and a negative tab;

[0006] A protective shell, the top of which is open and the bottom of which is closed, and the finished battery cell is located inside the protective shell;

[0007] A protection plate, the protection plate is arranged on the top of the protection shell and is used to close the top open end of the protection shell, an insulating ring is arranged on the top of the protection plate, the protection plate is divided into an outer positive electrode area and an inner negative electrode area by the insulating ring, the positive electrode ear is electrically connected to the outer positive electrode area through a lead, the negative electrode ear is electrically connected to the inner negative electrode area through a lead, and the outer positive electrode area and the inner negative electrode area are both used to contact the contacts of the electronic device to achieve power conduction between the outer positive electrode area, the inner negative electrode area and the electronic device;

[0008] An insulating rubber sleeve is coaxially arranged on the top of the protective shell and is located between the protective plate and the protective shell. A supporting flange is radially arranged inside the insulating rubber sleeve, and the supporting flange is used to install the protective plate.

[0009] By adopting the above technical scheme, the positive and negative ears of the finished battery cells are respectively connected to the outer positive electrode area and the inner negative electrode area of ​​the protection board through leads, and then the contacts of the electronic device are contacted by the outer positive electrode area and the inner negative electrode area on the same side of the protection board, so that stable and reliable power conduction can be formed between the finished battery cells and the electronic device, and the function of the single-head ear can be realized. When the electronic device needs to be repaired, it is only necessary to release the electrical connection between the electronic device and the protection board, thereby improving the convenience of battery disassembly and assembly. By setting a protective shell, a closed installation position can be provided for each component, so that the external electronic device can only conduct electricity through the protection board. The insulating ring plays the role of isolating the positive and negative electrodes of the protection board. The setting of the insulating rubber sleeve ensures the isolation between the protective shell and the protection board. The setting of the support flange ensures the stable support of the protection board. Under the elastic abutment of the insulating rubber sleeve, the stable connection between the protective shell and the protection board can be improved, thereby improving the stability of the overall structure of the battery.

[0010] In a preferred example, the present application can be further configured as follows: an annular groove is provided on the outer side of the protective shell at a position corresponding to the insulating rubber sleeve, the inner bottom wall of the annular groove extends radially along the inside of the protective shell, and the annular groove is used to abut the insulating rubber sleeve.

[0011] By adopting the above technical solution and setting the annular groove, the insulating rubber sleeve and the protective plate can be fixed by abutting the insulating rubber sleeve, thereby reducing the possibility of the insulating rubber sleeve sinking inside the protective shell during battery use.

[0012] In a preferred example, the present application can be further configured as follows: the depth of the annular groove is 0.5 mm.

[0013] By adopting the above technical solution, the annular groove adopts the depth dimension, which can achieve abutment between the insulating rubber sleeve and the protection plate while not easily causing the insulating rubber sleeve to deform excessively and damage the protection plate.

[0014] In a preferred example, the present application can be further configured as follows: both ends of the finished battery cell are provided with insulating paper, and the positive electrode ear and the negative electrode ear are both bent and abut against the corresponding insulating paper.

[0015] By adopting the above technical solution, the positive electrode ear and the negative electrode ear are bent to the two ends of the finished battery cell respectively, which can reduce the design space required for the protective shell to accommodate the finished battery cell, save battery space to adapt to small electronic devices, and by providing insulating paper, the risk of short circuit can be reduced.

[0016] In a preferred example, the present application can be further configured as follows: the insulating rubber sleeve is provided with a notch.

[0017] By adopting the above technical solution and setting a gap, it is possible to provide space for the lead of the negative electrode ear, thereby facilitating power conduction between the finished battery cell and the protection board.

[0018] In a preferred example, the present application can be further configured as follows: the upper surface of the protection plate is gold-plated.

[0019] By adopting the above technical solution, the conductive performance can be improved.

[0020] In a preferred example, the present application can be further configured as follows: the protective shell is made of steel.

[0021] By adopting the above technical solution, the protective shell made of steel is hard and corrosion-resistant, which can effectively isolate the internal contact of the battery from the external environment and ensure the stability of the battery.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Connect the positive and negative ears of the finished battery cell to the outer positive electrode area and inner negative electrode area of ​​the protection board through leads respectively, and then contact the electronic equipment through the contacts of the outer positive electrode area and the inner negative electrode area on the same side of the protection board, so that stable and reliable power conduction can be formed between the finished battery cell and the electronic equipment, realizing the function of the single-head ear. When the electronic equipment needs to be repaired, it is only necessary to release the electrical connection between the electronic equipment and the protection board, thereby improving the convenience of battery disassembly and assembly. By setting a protective shell, a closed installation position can be provided for each component, so that the external electronic equipment can only conduct electricity through the protection board. The insulating ring plays the role of isolating the positive and negative electrodes of the protection board. The setting of the insulating rubber sleeve ensures the isolation between the protective shell and the protection board. The setting of the support flange ensures the stable support of the protection board. Under the elastic abutment of the insulating rubber sleeve, the stable connection between the protective shell and the protection board can be improved, thereby improving the stability of the overall structure of the battery.

[0024] 2. By providing the annular groove, the insulating rubber sleeve can be abutted against the insulating rubber sleeve to fix the insulating rubber sleeve and the protective plate, thereby reducing the possibility of the insulating rubber sleeve sinking inside the protective shell during battery use.

[0025] 3. By bending the positive and negative ears to the two ends of the finished battery cell respectively, the design space required for the protective shell to accommodate the finished battery cell can be reduced, saving battery space to adapt to small electronic devices, and by providing insulating paper, the risk of short circuit can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a single-head tab battery in one embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of the process of folding the tabs of a finished battery cell in one embodiment of the present application;

[0028] Figure 3It is a schematic diagram of the explosion structure of a single-head tab battery in one embodiment of the present application.

[0029] Figure numerals: 1. Finished battery cell; 2. Protective shell; 3. Protective plate; 4. Insulating rubber sleeve; 5. Positive ear; 6. Negative ear; 7. Insulating ring; 8. Outer circle positive electrode area; 9. Inner circle negative electrode area; 10. Support flange; 11. Ring groove; 12. Insulating paper; 13. Notch. DETAILED DESCRIPTION

[0030] The following is a description of exemplary embodiments of the present application in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0031] It should be noted that the terms "first", "second", etc. in the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure.

[0032] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0033] A single-tab battery of the present application is described below with reference to the accompanying drawings.

[0034] like Figure 1 , Figure 2 and Figure 3As shown, the single-head tab battery includes a finished battery cell 1, a protective shell 2, a protective plate 3 and an insulating rubber sleeve 4, the two ends of the finished battery cell 1 are respectively provided with a positive tab 5 and a negative tab 6, the top of the protective shell 2 is open and the bottom is closed, the finished battery cell 1 is located inside the protective shell 2, the protective plate 3 is arranged on the top of the protective shell 2 and is used to close the top open end of the protective shell 2, an insulating ring 7 is arranged on the top of the protective plate 3, and the protective plate 3 is divided into an outer positive electrode area 8 and an inner negative electrode area 9 by the insulating ring 7, and the positive tab 5 is connected to the inner negative electrode area 9 by a lead wire (Figure The outer ring positive electrode area 8 and the inner ring negative electrode area 9 are both used to contact the contacts of the electronic device (not shown in the figure) to achieve power conduction between the outer ring positive electrode area 8, the inner ring negative electrode area 9 and the electronic device. The insulating rubber sleeve 4 is coaxially arranged on the top of the protective shell 2 and is located between the protective plate 3 and the protective shell 2. A support flange 10 is radially arranged inside the insulating rubber sleeve 4. The support flange 10 is used to install the protective plate 3. The positive electrode ear 5 and the negative electrode ear 6 of the finished battery cell 1 are respectively connected to the outer positive electrode area 8 and the inner negative electrode area 9 of the protection plate 3 through leads, and then the outer positive electrode area 8 and the inner negative electrode area 9 located on the same side of the protection plate 3 contact the contacts of the electronic device, so that stable and reliable power conduction can be formed between the finished battery cell 1 and the electronic device, and the function of the single-head electrode ear can be realized. When the electronic device needs to be repaired, it is only necessary to release the electrical connection between the electronic device and the protection plate 3, thereby improving the convenience of battery disassembly and assembly. By setting the protective shell 2, a closed installation position can be provided for each component, so that the external electronic device can only conduct electricity through the protection plate 3. The insulating ring 7 plays a role in isolating the positive and negative electrodes of the protection plate 3. The setting of the insulating rubber sleeve 4 ensures the isolation between the protective shell 2 and the protection plate 3. The setting of the support flange 10 ensures the stable support of the protection plate 3. Under the elastic abutment of the insulating rubber sleeve 4, the stable connection between the protective shell 2 and the protection plate 3 can be improved, thereby improving the stability of the overall structure of the battery.

[0035] Specifically, in the present embodiment, the shapes of the finished battery cell 1 and the protective shell 2 are both cylindrical, so that the finished battery cell 1 and the protective shell 2 can be adapted to each other and to the shapes of most small electronic devices on the market. The protective shell 2 is made of steel. The protective shell 2 made of steel is hard and corrosion-resistant, and can effectively connect the inside of the battery with the external environment to ensure the stability of the battery. The protective plate 3 is made of conductive material, so that the positive and negative ears 6 of the finished battery cell 1 are electrically connected to the outer circle positive electrode area 8 and the inner circle positive electrode area through leads from the bottom of the protective plate 3, respectively, and the upper surface of the protective plate 3 is gold-plated, which can further improve the conductivity and improve the appearance grade of the battery product. The insulating ring 7 is a ring structure, and insulating materials such as plastic and barley paper can be selected. The insulating ring 7 can also be made by plating.

[0036] Furthermore, an annular groove 11 is provided on the outer side of the protective shell 2 at a position corresponding to the insulating rubber sleeve 4, and the inner bottom wall of the annular groove 11 extends radially along the inside of the protective shell 2. The annular groove 11 is used to abut the insulating rubber sleeve 4. By providing the annular groove 11, the insulating rubber sleeve 4 and the protective plate 3 can be fixed by abutting the insulating rubber sleeve 4, thereby reducing the possibility of the insulating rubber sleeve 4 sinking inside the protective shell 2 during the use of the battery.

[0037] Specifically, the depth of the annular groove 11 is 0.5 mm. The annular groove 11 with this depth can achieve abutment between the insulating rubber sleeve 4 and the protection plate 3 while not easily causing the insulating rubber sleeve 4 to deform excessively and damage the protection plate 3 .

[0038] In addition, insulating paper 12 is provided at both ends of the finished battery cell 1, and the positive electrode ear 5 and the negative electrode ear 6 are both bent and abutted against the corresponding insulating paper 12. By bending the positive electrode ear 5 and the negative electrode ear 6 to the two ends of the finished battery cell 1 respectively, the design space required for the protective shell 2 to accommodate the finished battery cell 1 can be reduced, saving battery space to adapt to small electronic devices, and by providing the insulating paper 12, the risk of short circuit can be reduced. Among them, the insulating paper 12 can be selected as highland barley paper, which has the characteristics of good air permeability, high mechanical strength and tensile strength, and is suitable for battery insulation working conditions.

[0039] In addition, the insulating rubber sleeve 4 is provided with a notch 13 , and the notch 13 can provide space for the lead of the negative electrode ear 6 , thereby facilitating power conduction between the finished battery cell 1 and the protection board 3 .

[0040] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A single-end tab battery, comprising a finished battery cell (1), wherein the two ends of the finished battery cell (1) are respectively provided with a positive tab (5) and a negative tab (6), characterized in that: Also includes: A protective shell (2), the protective shell (2) being open at the top and closed at the bottom, and the finished battery cell (1) being located inside the protective shell (2); A protection plate (3), the protection plate (3) being arranged on the top of the protection shell (2) and used for closing the top open end of the protection shell (2), an insulating ring (7) being arranged on the top of the protection plate (3), the protection plate (3) being divided into an outer positive electrode area (8) and an inner negative electrode area (9) by the insulating ring (7), the positive electrode ear (5) being electrically connected to the outer positive electrode area (8) by a lead, the negative electrode ear (6) being electrically connected to the inner negative electrode area (9) by a lead, the outer positive electrode area (8) and the inner negative electrode area (9) being both used for contacting the contacts of the electronic device to realize power conduction between the outer positive electrode area (8), the inner negative electrode area (9) and the electronic device; An insulating rubber sleeve (4), the insulating rubber sleeve (4) is coaxially arranged on the top of the protective shell (2) and is located between the protective plate (3) and the protective shell (2), and a supporting flange (10) is radially arranged inside the insulating rubber sleeve (4), and the supporting flange (10) is used to install the protective plate (3).

2. A single-tab battery as claimed in claim 1, characterized in that: An annular groove (11) is provided on the outer side of the protective shell (2) at a position corresponding to the insulating rubber sleeve (4); the inner bottom wall of the annular groove (11) extends radially along the inside of the protective shell (2); and the annular groove (11) is used to abut against the insulating rubber sleeve (4).

3. A single-tab battery as claimed in claim 2, characterized in that: The depth of the annular groove (11) is 0.5 mm.

4. A single-tab battery as claimed in claim 1, characterized in that: Insulating paper (12) is provided at both ends of the finished battery cell (1), and the positive electrode tab (5) and the negative electrode tab (6) are both bent and abut against the corresponding insulating paper (12).

5. The single-tab battery according to claim 1, characterized in that: The insulating rubber sleeve (4) is provided with a notch (13).

6. A single-tab battery as claimed in claim 1, characterized in that: The upper surface of the protection plate (3) is plated with gold.

7. The single-tab battery according to claim 1, characterized in that: The protective shell (2) is made of steel.

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