Battery structure without welding of tabs

Abstract

The battery structure of the present invention is provided with a packaging component, a battery core and a central column. In the actual application process, the battery core is placed in the battery cavity, and when the battery cover is clamped in the sealing rubber ring, the sealing rubber ring will be supported by the inner wall of the battery shell, thereby fixing the battery cover on the battery shell; in addition, a clamping elastic part is provided on the battery shell and / or the battery cover, and when the clamping elastic part is supported by the tab, the tab is supported to the end position of the central column, thereby clamping the tab between the clamping elastic part and the end of the central column, that is, the tab does not need to be welded with the battery cover and the battery shell to complete the connection, when the internal pressure of the battery cavity is too large, the internal pressure will cause the clamping elastic part to deform, and under the action of the internal pressure, the tab is no longer clamped between the clamping elastic part and the end of the central column, that is, circuit breaking protection is achieved to prevent the battery core from transmitting voltage to the outside when the internal pressure is too large, thereby causing corresponding safety accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of battery structures, and in particular to a battery structure without welding of tabs. Background Art

[0002] At present, a battery refers to a cup, trough or other container or part of a composite container that contains an electrolyte solution and a metal electrode to generate an electric current, and is a device that can convert chemical energy into electrical energy. It has a positive electrode and a negative electrode. With the advancement of science and technology, batteries generally refer to small devices that can generate electrical energy, such as solar cells. The performance parameters of batteries mainly include electromotive force, capacity, specific energy and resistance. Using batteries as an energy source can obtain a current with stable voltage, stable current, long-term stable power supply, and little external influence. In addition, the battery has a simple structure, is easy to carry, and is easy to charge and discharge. It is not affected by external climate and temperature, and has stable and reliable performance. It plays a great role in all aspects of modern social life.

[0003] The existing battery structure includes a battery cover, a battery shell and a battery core. The battery cover is arranged on the battery shell, and the battery cover and the battery shell together form a battery cavity. The battery core is arranged in the battery cavity, and the pole ears of the battery core are welded to the battery cover and the battery shell respectively. The welding of the pole ears is to ensure that the pole ears can be stably connected to the battery cover and the battery shell to ensure the stable output of the battery core. However, there are certain defects in the method of welding the pole ears. First, the method of welding the pole ears will increase the difficulty of production and manufacturing of the battery structure, and equipment with very high operating precision is required to weld the pole ears, which will undoubtedly increase the operating cost of the enterprise; second, when the internal pressure of the battery cavity is too large, the welded pole ears cannot be separated from the battery cover and the battery shell, that is, when the internal pressure of the battery structure is too large, the battery core is still transmitting voltage to the outside, which poses a considerable safety hazard. In severe cases, it will cause the battery structure to explode or the battery electrolyte to erupt, seriously endangering the life safety of the user. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a battery structure in which the tabs are welded-free and the tabs can be separated from the battery cover and / or battery shell in time when the internal pressure of the battery is too high, thereby completing the circuit-breaking protection.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A battery structure without welding of tabs, comprising:

[0007] A packaging assembly, the packaging assembly comprising a battery cover, a sealing rubber ring and a battery shell, the battery cover is clamped in the sealing rubber ring so that the sealing rubber ring is supported against the inner wall of the battery shell, the battery shell and the battery cover together enclose a battery inner cavity, and a clamping elastic portion is provided on the battery shell and / or the battery cover;

[0008] A battery roll core, wherein the battery roll core is disposed in the battery inner cavity, a position avoidance hole is opened in the battery roll core, and a pole ear is disposed on the battery roll core; and

[0009] The center column is located in the avoidance hole, and when the clamping elastic part is pressed against the pole ear, the pole ear is pressed to the end position of the center column, so that the pole ear is clamped between the clamping elastic part and the end of the center column.

[0010] In one embodiment, the clamping elastic portion is located on the battery cover, and when the clamping elastic portion is pressed against the pole tab, the pole tab is pressed to the end position of the center column, thereby clamping the pole tab between the clamping elastic portion and the end of the center column.

[0011] In one embodiment, the clamping elastic portion specifically includes an upper clamping elastic portion and a lower clamping elastic portion, the upper clamping elastic portion is located on the battery cover, the lower clamping elastic portion is located on the battery shell, the pole ear specifically includes an upper pole ear and a lower pole ear, and the center column includes a front end column, a middle end column and a rear end column connected in sequence;

[0012] Wherein, when the upper clamping elastic part is pressed against the upper pole ear, the upper pole ear is pressed against the front end column, so that the upper pole ear is clamped between the upper clamping elastic part and the front end column;

[0013] When the lower clamping elastic part is pressed against the lower pole tab, the lower pole tab is pressed against the rear end column, and then the lower pole tab is clamped between the lower clamping elastic part and the rear end column.

[0014] In one embodiment, the upper clamping elastic portion is recessed downward toward the battery inner cavity.

[0015] In one embodiment, the lower clamping elastic portion protrudes upward toward the battery inner cavity.

[0016] In one embodiment, an upper insulating member is provided between the front end column and the upper pole ear.

[0017] In one embodiment, a lower insulating member is disposed between the rear end column and the lower pole lug.

[0018] In one embodiment, the avoidance hole is located in the middle of the battery roll core.

[0019] In one embodiment, the battery shell includes a packaging shell and a bent edge seal connected in sequence, the packaging shell and the battery cover together form a battery cavity, and the battery cover is clamped in the sealing rubber ring so that the sealing rubber ring is respectively abutted against the inner wall of the packaging shell and the inner wall of the bent edge seal.

[0020] In one embodiment, the packaging shell and the bent edge seal are an integrally formed structure.

[0021] The advantages and beneficial effects of the present invention compared to the prior art are as follows:

[0022] The battery structure of the present invention is provided with a packaging component, a battery core and a central column. In the actual application process, the battery core is placed in the battery cavity, and when the battery cover is clamped in the sealing rubber ring, the sealing rubber ring will be supported by the inner wall of the battery shell, thereby fixing the battery cover on the battery shell; in addition, a clamping elastic part is provided on the battery shell and / or the battery cover, and when the clamping elastic part is supported by the tab, the tab is supported to the end position of the central column, thereby clamping the tab between the clamping elastic part and the end of the central column, that is, the tab does not need to be welded with the battery cover and the battery shell to complete the connection, when the internal pressure of the battery cavity is too large, the internal pressure will cause the clamping elastic part to deform, and under the action of the internal pressure, the tab is no longer clamped between the clamping elastic part and the end of the central column, that is, circuit breaking protection is achieved to prevent the battery core from transmitting voltage to the outside when the internal pressure is too large, thereby causing corresponding safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic structural diagram of a battery structure without welding of tabs in one embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the internal structure of a battery structure without welding of tabs in one embodiment of the present invention;

[0026] Figure 3 for Figure 2 An enlarged schematic diagram at A;

[0027] Figure 4 for Figure 2 Enlarged schematic at B. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] Please also read Figure 1 and Figure 2 A battery structure 10 without welding of the tabs includes a packaging component 100, a battery roll core 200 and a central column 300.

[0032] In this way, it should be noted that the packaging component 100 serves to package and protect the battery core 200; the battery core 200 serves to provide voltage to external electrical equipment; the central column 300 serves as the pole ear of the battery core 200 and prevents the battery core 200 from excessive expansion, thereby protecting the battery core 200.

[0033] Please refer again Figure 2 The packaging assembly 100 includes a battery cover 110, a sealing rubber ring 120 and a battery shell 130. The battery cover 110 is clamped in the sealing rubber ring 120 so that the sealing rubber ring 120 is supported against the inner wall of the battery shell 130. The battery shell 130 and the battery cover 110 together form a battery cavity, and a clamping elastic portion 140 is provided on the battery shell 130 and / or the battery cover 110.

[0034] In this way, it should be noted that the battery cover 110 and the battery shell 130 both play the role of encapsulating and protecting the battery core 200. At the same time, the battery cover 110 and the battery shell 130 together form a battery cavity, and the battery cavity is used to place the battery core 200; the sealing rubber ring 130 plays a role of sealing and waterproofing, preventing external water droplets from entering the battery cavity and causing a short circuit in the battery core 200; the clamping elastic part 140 is used in conjunction with the center column 300 to complete the welding-free connection between the pole ears of the battery core 200 and the battery cover 110 and the battery shell 130.

[0035] Please refer again Figure 2 The battery roll core 200 is disposed in the inner cavity of the battery, a avoiding hole 210 is opened in the battery roll core 200 , and a pole ear 220 is disposed on the battery roll core 200 .

[0036] In this way, it should be noted that the battery roll core 200 plays the role of providing voltage to external electrical equipment; the opening of the avoidance hole 210 can make the structure of the battery structure 10 without welding of the tabs more compact.

[0037] Please refer again Figure 2 The center column 300 is located in the avoidance hole 210. When the clamping elastic part 140 and the pole ear 220 are supported, the pole ear 220 is supported to the end position of the center column 300, so that the pole ear 220 is clamped between the clamping elastic part 140 and the end of the center column 300.

[0038] In this way, it should be noted that a clamping elastic portion 140 is provided on the battery shell 130 and / or the battery cover 110. When the clamping elastic portion 140 is supported by the pole ear 220, it is used to support the pole ear 220 to the end position of the center column 300, and then the pole ear 220 is clamped between the clamping elastic portion 140 and the end of the center column 300, that is, the pole ear 220 does not need to be welded with the battery cover 110 and the battery shell 130 to complete the connection. When the internal pressure of the battery cavity is too large, the internal pressure will cause the clamping elastic portion 140 to deform. Under the action of the internal pressure, the pole ear 220 is no longer clamped between the clamping elastic portion 140 and the end of the center column 300, that is, circuit breaking protection is achieved to prevent the battery roll core from transmitting voltage to the outside when the internal pressure is too large, causing corresponding safety accidents.

[0039] It should also be noted that since the pole ear 220 does not need to be welded to the battery cover 110 and the battery shell 130, when the internal pressure of the battery cavity is too large, under the action of the internal pressure, at least part of the battery cover 110 will be separated from the sealing rubber ring 120, that is, when the internal pressure of the battery cavity is too large, there is a certain gap between the battery cover 110 and the sealing rubber ring 120 or the battery cover 110 is completely separated from the sealing rubber ring 120, and the battery structure 10 without welding of the pole ear completes the autonomous pressure relief operation. Compared with the traditional battery structure that needs to be equipped with explosion-proof plates to complete the pressure relief operation, the battery structure 10 without welding of the pole ear of the present application has a relatively low manufacturing cost and a more compact structure, and can have the function of autonomous pressure relief without the need to set up explosion-proof plates.

[0040] It should also be noted that when the central column 300 is assembled with the battery cover 110, the central column 300 can also prevent the battery cover 110 from excessively displacing and squeezing the battery roll core 200, that is, when the clamping elastic portion 140 holds the pole ear 220 to the end position of the central column 300, so that the pole ear 220 is clamped between the clamping elastic portion 140 and the end of the central column 300, under the action of the central column 300, the battery cover 110 cannot continue to be pressed down and displaced, and the central column 300 effectively prevents the battery cover 110 from being pressed down. At the same time, because the battery roll core 200 is provided with an avoidance hole 210, the force on the battery roll core 200 is uneven. When the battery roll core 200 expands due to unexpected factors, the central column 300 located in the avoidance hole 210 can effectively prevent the battery roll core 200 from over-expanding, thereby causing damage to the battery roll core 200.

[0041] Further, please refer again to Figure 2 In one embodiment, the clamping elastic portion 140 is located on the battery cover 110. When the clamping elastic portion 140 and the pole tab 220 are supported, the pole tab 220 is supported to the end position of the center column 300, so that the pole tab 220 is clamped between the clamping elastic portion 140 and the end of the center column 300.

[0042] In this case, it should be noted that, considering the difficulty of the manufacturing process, the clamping elastic part 140 can be set only on the battery cover 110, and the working principle of the clamping elastic part 140 will not be repeated. Please refer to the working principle of the clamping elastic part 140 mentioned above. It should be emphasized that the clamping elastic part 140 has a certain deformation ability. When the battery cover 110 holds the clamping elastic part 140 to the end position of the central column 300, according to the principle of force interaction, the central column 300 will also hold the clamping elastic part 140 upward through the pole ear 220, and the clamping elastic part 140 will inevitably undergo a certain deformation. When the clamping elastic part 140 is deformed upward, the diameter of the battery cover 110 will increase by a certain amount, so that the interaction force between the battery cover 110 and the battery shell 130 is stronger, that is, the battery cover 110 can be more stably installed on the battery shell 130, optimize the interaction force between the battery cover 110 and the battery shell 130, and further improve the sealing performance of the battery structure 10 without welding of the pole ear.

[0043] For further information, please also refer to Figure 2 , Figure 3 and Figure 4 In one embodiment, the clamping elastic portion 140 specifically includes an upper clamping elastic portion 141 and a lower clamping elastic portion 142, the upper clamping elastic portion 141 is located on the battery cover 110, and the lower clamping elastic portion 142 is located on the battery shell 130, the pole ear 220 specifically includes an upper pole ear 221 and a lower pole ear 222, and the center column 300 includes a front end column 310, a middle end column 320 and a rear end column 330 connected in sequence;

[0044] When the upper clamping elastic portion 141 and the upper pole ear 221 are pressed against each other, the upper pole ear 221 is pressed against the front end column 310, so that the upper pole ear 221 is clamped between the upper clamping elastic portion 141 and the front end column 310;

[0045] When the lower clamping elastic portion 142 and the lower pole tab 222 are pressed against each other, the lower pole tab 222 is pressed against the rear end column 330 , and the lower pole tab 222 is clamped between the lower clamping elastic portion 142 and the rear end column 330 .

[0046] In this way, it should be noted that in order to enable the pole ear 220 of the battery roll core 200 to be clamped better and more stably, in one embodiment, the battery cover 110 and the battery shell 130 are both provided with a clamping elastic portion 140, and the clamping elastic portion 140 specifically includes an upper clamping elastic portion 141 and a lower clamping elastic portion 142. The upper clamping elastic portion 141 is located on the battery cover 110, and the lower clamping elastic portion 142 is located on the battery shell 130. The specific working principles of the upper clamping elastic portion 141 and the lower clamping elastic portion 142 will not be repeated, and please refer to the above-mentioned working principle of the clamping elastic portion 140. The upper clamping elastic portion 141 is provided so that the upper pole ear 220 of the battery roll core 200 is clamped between the upper clamping elastic portion 141 and the front end column 310, and the lower clamping elastic portion 142 is provided so that the lower pole ear of the battery roll core 200 is clamped between the lower clamping elastic portion 142 and the rear end column 330, so that the pole ear 220 of the battery roll core 200 does not need to be welded to the battery cover 110 and the battery shell 130 respectively, which greatly improves the safety of the battery structure 10 without welding of the pole ears. When the internal pressure of the battery cavity is too high, the upper clamping elastic portion 141 and the lower clamping elastic portion 142 will both undergo a certain deformation under the action of the internal pressure, so that the upper pole ear 221 and the lower pole ear 222 are no longer clamped, thereby realizing circuit-breaking protection, and preventing the battery roll core 200 from supplying power to external electrical equipment when the internal pressure of the battery cavity is too high, causing corresponding safety accidents.

[0047] It should also be noted that in addition to being provided solely on the battery cover 110, the clamping elastic portion 140 can also be provided solely on the battery shell 130. Regardless of whether the clamping elastic portion 140 is provided on the battery cover 110 or the battery shell 130, the function and effect of the clamping elastic portion 140 are the same, which is to enable the pole ear 220 of the battery roll core 200 to be clamped between the clamping elastic portion 140 and the end of the center column 300 to achieve welding-free operation. When the internal pressure of the battery cavity is too high, the clamping elastic portion 140 can no longer clamp the pole ear 220 of the battery roll core 200 under the action of the internal pressure, thereby achieving circuit-breaking protection when the internal pressure is too high.

[0048] Further, please refer again to Figure 3 In one embodiment, the upper clamping elastic portion 141 is recessed downward toward the inner cavity of the battery.

[0049] In this case, it should be noted that the upper clamping elastic portion 141 is recessed downward toward the direction of the battery inner cavity. The purpose of this design is that when the battery cover 110 is assembled, when the battery cover 110 is pressed down, as the battery cover 110 is pressed down, the upper clamping elastic portion 141 recessed downward toward the battery inner cavity can contact the pole ear of the battery roll core 200, thereby clamping the pole ear 220 of the battery roll core 200. Of course, the direction of the upper clamping elastic portion 141 can be flexibly set according to actual conditions. For example, the upper clamping elastic portion 141 protrudes upward toward the direction of the battery inner cavity. The difference is that when the upper clamping elastic portion 141 protrudes upward toward the direction of the battery inner cavity during assembly, it is necessary to use external force to press the upper clamping elastic portion 141 protruding upward toward the direction of the battery inner cavity, so that the upper clamping elastic portion 141 undergoes a certain deformation to contact the pole ear 220 of the battery roll core 200.

[0050] Further, please refer again to Figure 4 In one embodiment, the lower clamping elastic portion 142 protrudes upward toward the inner cavity of the battery.

[0051] In this way, it should be noted that the lower clamping elastic part 142 protrudes upward toward the direction of the battery cavity. The purpose of this design is that when the battery cover 110 is assembled, when the battery cover 110 is pressed down, the front column 310 supports the upper pole ear 221, and the rear column 330 also supports the lower pole ear 222. At the same time, the lower clamping elastic part 142 also supports the lower pole ear 222 when the battery cover 110 is pressed down, so that the lower pole ear 222 is clamped between the lower clamping elastic part 142 and the rear column 330. Of course, the direction of the lower clamping elastic part 142 can be flexibly set according to actual conditions. For example, the lower clamping elastic part 142 is concave downward toward the direction of the battery cavity. The difference is that when the lower clamping elastic part 142 is concave downward toward the direction of the battery cavity during assembly, it is necessary to use external force to press the concave lower clamping elastic part 142 toward the direction of the battery cavity, so that the lower clamping elastic part 142 undergoes a certain deformation to contact the lower pole ear 222.

[0052] Furthermore, in one embodiment, an upper insulating member is disposed between the front end column 310 and the upper pole ear 221 .

[0053] In this way, it should be noted that the upper insulating member plays the role of insulation isolation. Considering the overall mechanical strength of the front end column 310, the front end column 310 is preferably made of metal material, but an upper insulating member needs to be provided between the front end column 310 and the upper pole ear 221 to prevent the upper pole ear 221 and the lower pole ear 222 from being directly short-circuited together.

[0054] Furthermore, in one embodiment, a lower insulating member is disposed between the rear end column 330 and the lower pole tab 222 .

[0055] In this way, it should be noted that the lower insulating member plays the role of insulation isolation. Considering the overall mechanical strength of the rear end column 330, the rear end column 330 is preferably made of metal material, but a lower insulating member needs to be provided between the rear end column 330 and the lower pole ear 222 to prevent the upper pole ear 221 and the lower pole ear 222 from being directly short-circuited together.

[0056] Further, please refer again to Figure 2 In one embodiment, the avoidance hole 210 is located in the middle of the battery roll core 200 .

[0057] In this way, it should be noted that the avoidance hole 210 is located in the middle of the battery roll core 200, so that the center column 300 located in the avoidance hole 210 and the battery roll core 200 are evenly stressed, thereby extending the service life of the center column 300 and the battery roll core 200.

[0058] Further, please refer again to Figure 2 In one embodiment, the battery shell 130 includes a packaging shell 131 and a bent edge seal 132 connected in sequence. The packaging shell 131 and the battery cover 110 together form a battery cavity. The battery cover 110 is clamped in the sealing rubber ring 120 so that the sealing rubber ring 120 is respectively abutted against the inner wall of the packaging shell 131 and the inner wall of the bent edge seal 132.

[0059] In this way, it should be noted that the packaging shell 131 plays a protective role, protecting the battery roll core 200; the bent edge seal 132 plays a role in limiting the battery cover 110, and the bent edge seal 132 can optimize the interaction force between the battery cover 110 and the battery shell 130. At the same time, the setting of the bent edge seal 132 can simplify the assembly process of the battery structure 10 without welding of the pole ear. The user only needs to press the battery cover 110 to complete the assembly operation. Compared with the traditional rolled edge battery structure, the assembly process of the present application is relatively simple, which greatly improves the assembly efficiency.

[0060] It should also be noted that when the battery shell 130 is provided with a clamping elastic portion 140 , the clamping elastic portion 140 is located on the packaging shell 131 .

[0061] Further, please refer again to Figure 2 In one embodiment, the packaging shell 131 and the bent edge sealing 132 are an integrally formed structure.

[0062] In this way, it should be noted that the design of the packaging shell 131 and the bent edge seal 132 as an integrated structure can improve the overall mechanical strength of the battery shell 130, extend the service life of the battery shell 130, and thus better protect the battery roll core 200.

[0063] The battery structure of the present invention is provided with a packaging component, a battery core and a central column. In the actual application process, the battery core is placed in the battery cavity, and when the battery cover is clamped in the sealing rubber ring, the sealing rubber ring will be supported by the inner wall of the battery shell, thereby fixing the battery cover on the battery shell; in addition, a clamping elastic part is provided on the battery shell and / or the battery cover, and when the clamping elastic part is supported by the tab, the tab is supported to the end position of the central column, thereby clamping the tab between the clamping elastic part and the end of the central column, that is, the tab does not need to be welded with the battery cover and the battery shell to complete the connection, when the internal pressure of the battery cavity is too large, the internal pressure will cause the clamping elastic part to deform, and under the action of the internal pressure, the tab is no longer clamped between the clamping elastic part and the end of the central column, that is, circuit breaking protection is achieved to prevent the battery core from transmitting voltage to the outside when the internal pressure is too large, thereby causing corresponding safety accidents.

[0064] The above-mentioned embodiments only express several embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A battery structure without welding of tabs, characterized in that: include: A packaging assembly, the packaging assembly comprising a battery cover, a sealing rubber ring and a battery shell, the battery cover is clamped in the sealing rubber ring so that the sealing rubber ring is supported against the inner wall of the battery shell, the battery shell and the battery cover together enclose a battery inner cavity, and a clamping elastic portion is provided on the battery shell and / or the battery cover; A battery roll core, wherein the battery roll core is disposed in the battery inner cavity, a position avoidance hole is opened in the battery roll core, and a pole ear is disposed on the battery roll core; and The center column is located in the avoidance hole, and when the clamping elastic part is pressed against the pole ear, the pole ear is pressed to the end position of the center column, so that the pole ear is clamped between the clamping elastic part and the end of the center column.

2. The battery structure without welding of the tabs according to claim 1, characterized in that: The clamping elastic portion is located on the battery cover, and when the clamping elastic portion and the tab are pressed against each other, the tab is pressed against the end of the center column, thereby clamping the tab between the clamping elastic portion and the end of the center column.

3. The battery structure without welding of the tabs according to claim 1, characterized in that: The clamping elastic part specifically includes an upper clamping elastic part and a lower clamping elastic part, the upper clamping elastic part is located on the battery cover, the lower clamping elastic part is located on the battery shell, the pole ear specifically includes an upper pole ear and a lower pole ear, and the central column includes a front end column, a middle end column and a rear end column connected in sequence; Wherein, when the upper clamping elastic part is pressed against the upper pole ear, the upper pole ear is pressed against the front end column, so that the upper pole ear is clamped between the upper clamping elastic part and the front end column; When the lower clamping elastic part is pressed against the lower pole tab, the lower pole tab is pressed against the rear end column, and then the lower pole tab is clamped between the lower clamping elastic part and the rear end column.

4. The battery structure without welding of the tabs according to claim 3, characterized in that: The upper clamping elastic portion is recessed downward toward the battery inner cavity.

5. The battery structure without welding of the tabs according to claim 3, characterized in that: The lower clamping elastic portion protrudes upward toward the battery inner cavity.

6. The battery structure without welding of the tabs according to claim 3, characterized in that: An upper insulating member is arranged between the front end column and the upper pole ear.

7. The battery structure without welding of the tabs according to claim 3, characterized in that: A lower insulating member is arranged between the rear end column and the lower pole ear.

8. The battery structure without welding of the tabs according to claim 1, characterized in that: The avoidance hole is located at the middle position of the battery roll core.

9. The battery structure without welding of the tabs according to claim 1, characterized in that: The battery shell includes a packaging shell and a bent edge seal connected in sequence. The packaging shell and the battery cover together form a battery cavity. The battery cover is clamped in the sealing rubber ring so that the sealing rubber ring is respectively abutted against the inner wall of the packaging shell and the inner wall of the bent edge seal.

10. The battery structure without welding of the tabs according to claim 9, characterized in that: The packaging shell and the bent edge seal are an integrally formed structure.

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