Chain type buckle and battery

Abstract

The utility model relates to the technical field of batteries, and discloses a chained buckle and a battery, the chained buckle comprises a plurality of buckle main bodies which are sequentially arranged along a first direction, and at least one connecting strip is connected between every two adjacent buckle main bodies; the connecting strips and the buckle main bodies are soft components with deformation characteristics and insulation characteristics, and the plurality of buckle main bodies are used for jointly binding a plurality of current collectors which are gathered together in a battery shell; by adopting the chain type buckle in the technical scheme, the bending of the tabs cannot be influenced when the cover plate is assembled, the problem that the tabs are inversely inserted into the battery cell after the cover plate is assembled is solved, the battery cell cannot be damaged or short-circuited after the battery is shaped subsequently, and the safety performance of the battery is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a chain buckle and a battery. Background Art

[0002] See also Figure 1 The existing aluminum shell battery usually includes a shell (not shown in the figure), a battery cell 1, a cover plate 2 and a pole ear 3, wherein the battery cell 1 is arranged in the shell, and the battery cell 1 specifically includes a positive electrode sheet, a separator and a negative electrode sheet. The positive electrode sheet, the separator and the negative electrode sheet can be stacked in sequence and formed by winding to form the battery cell 1, or the battery cell 1 can be stacked in the order of positive electrode sheet, separator, negative electrode sheet and separator, and the pole ear 3 extends relative to the battery cell, and the pole ear 3 is composed of multiple current collectors. Specifically, a positive electrode ear extends from the positive electrode sheet, and a negative electrode ear extends from the negative electrode sheet. At least one of the positive electrode ear and the negative electrode ear is connected to the pole column of the cover plate 2, so that the cover plate 2 has at least one of a positive pole column or a negative pole column. During assembly, the poles of the battery cell 1 and the cover plate 2 are pre-connected together through the pole ears 3, and then the battery cell 1 is loaded into the shell, and then the cover plate 2 is closed on the shell to isolate the battery cell 1 from the external environment. When the assembly between the cover plate 2 and the shell is completed, the pole ears 3 inside the shell will be bent, and the bent pole ears 3 may be inserted backwards into the battery cell 1, thereby causing the battery cell 1 to short-circuit, and even cause thermal runaway of the battery cell 1. In particular, if the battery needs to be reshaped in size later, the bent pole ears 3 are more likely to be inserted backwards into the battery cell 1, which is more likely to cause the battery cell to short-circuit.

[0003] In order to solve the problem that the tab 3 will be inserted into the battery cell 1 upside down after the cover plate 2 is installed, the prior art adopts the following two methods:

[0004] 1. Use a single insulating large buckle to cover the pole ear 3. Although the pole ear 3 and the battery cell 1 can be insulated and isolated at this time, the large buckle is hard and the pole ear 3 is difficult to bend, which affects the battery shaping process after the battery cell 1 is put into the shell. If the shaping is forced, there is a risk of damaging both the battery cell 1 and the pole piece 3.

[0005] Second, using multiple smaller clips to cover the pole ear 3 does not affect the bending of the pole ear 3 and can also achieve insulation isolation between the pole ear 3 and the battery cell 1. However, if one of the clips is loose, the loose clip may fall off the battery cell 1. During the battery shaping process, the battery cell 1 will be squeezed, thereby posing a risk of damaging both the battery cell 1 and the pole piece 3. Utility Model Content

[0006] The utility model aims to provide a chain buckle and a battery, which mainly solve the technical problem of how to prevent a battery tab from being inserted backward into a battery cell.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A chain buckle comprises a plurality of buckle bodies arranged in sequence along a first direction, at least one connecting strip being connected between two adjacent buckle bodies, the connecting strip and the buckle bodies being both soft components with deformation and insulation properties, and the buckle bodies being used for binding current collectors in a battery casing.

[0009] In one of the technical solutions, a first fixing portion is convexly provided on the first end of the buckle body, and a second fixing portion is provided on the second end of the buckle body away from the first end, and when the first fixing portion is fixed with the second fixing portion, the buckle body is used to bind the current collector;

[0010] Wherein, the first fixing portion is a protruding clamping head, and the second fixing portion is a penetrating clamping slot, and the clamping head can be buckled into the clamping slot to achieve matching fixation.

[0011] In one of the technical solutions, a fold is provided on the buckle body, and the fold is provided between the first fixing portion and the second fixing portion.

[0012] In one of the technical solutions, a plurality of the connecting strips are connected between two adjacent rows of the buckle bodies, and the plurality of the connecting strips form a mesh-like connecting structure, and the connecting structure connects the two adjacent rows of the buckle bodies.

[0013] In one of the technical solutions, at least one of the buckle bodies includes a plurality of directly or indirectly connected buckle strips, each of the buckle strips is provided with the second fixing portion (412) and the first fixing portion (411) that cooperate with each other, and the buckle strips are used to bind the current collector.

[0014] In one of the technical solutions, the battery housing has N current collectors gathered together, where N is a positive integer greater than or equal to 1;

[0015] The multiple buckle bodies include at least one first buckle body, and the first buckle body includes multiple buckle strips directly connected in sequence. All the buckle strips in the first buckle body are wrapped around the periphery of the N current collectors gathered together to bundle the N current collectors.

[0016] In one of the technical solutions, the battery housing has N current collectors gathered together, and the N current collectors are divided into M strands at local positions, where M is a positive integer greater than 1, and N is a positive integer greater than or equal to 2;

[0017] The multiple snap-on bodies include at least one second snap-on body, the second snap-on body includes M snap-on strips arranged in sequence and at intervals, all the snap-on strips in the second snap-on body are connected to another adjacent snap-on body, so that all the snap-on strips in the second snap-on body are indirectly connected, and each of the snap-on strips in the second snap-on body is used to bundle a corresponding stream of the current collector.

[0018] In one of the technical solutions, one of the clip bodies at the end along the first direction is the second clip body, the first direction is a direction gradually approaching the root of the current collector, and the position where the current collector is connected to the battery cell is the root of the current collector.

[0019] The present application also provides a battery, comprising a shell, a cover plate, a battery cell, a pole ear and the chain buckle described in any one of the technical solutions of the above claims, wherein the battery cell is placed in the shell, the pole ear is respectively connected to the battery cell and the cover plate, the cover plate is sealed to the shell to separate the battery cell from the external environment, the pole ear includes a current collector, and a plurality of buckle bodies in the chain buckle jointly bind the current collector on the pole ear.

[0020] In one of the technical solutions, two pole ears are connected between the battery cell and the cover plate, one of the pole ears serves as a positive electrode, and the other pole ear serves as a negative electrode, and the chain buckles are provided on both pole ears.

[0021] Compared with the prior art, the chain buckle provided by the utility model has at least the following beneficial effects:

[0022] The present solution provides a plurality of buckle bodies, each of which can be bound to a battery pole ear (the pole ear is composed of one or more current collectors), and each buckle body and connecting strip are flexible, so that when each buckle body is bound to the battery pole ear, the bending of the pole ear will not be affected, and each buckle body has insulation, which reduces the risk of the pole ear and the battery cell forming a short circuit after bending. In addition, since the plurality of buckle bodies are connected by connecting strips, if a single buckle body is loosened, it will not fall off the battery cell, so as to prevent the buckle body that falls after the subsequent shaping of the battery cell from squeezing the battery cell, thereby reducing the risk of damage to the battery cell or short circuit;

[0023] To sum up, the chain buckle of the technical solution is adopted, so that when the cover plate is assembled, the bending of the pole ear will not be affected, and the problem of the pole ear being inserted upside down into the battery cell after the cover plate is assembled is solved. The subsequent shaping of the battery will not cause damage or short circuit to the battery cell, which greatly improves the safety performance of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a schematic diagram of the structure of a battery in the prior art after the housing is hidden;

[0026] Figure 2 A schematic diagram of the structure of a chain buckle provided in Example 1 of the present application;

[0027] Figure 3 for Figure 2 The schematic diagram of the structure of the chain buckle when binding the battery tab;

[0028] Figure 4 for Figure 2 The schematic diagram of the structure when the chain buckle is designed as a mesh structure;

[0029] Figure 5 for Figure 2 The schematic diagram of the structure of the chain buckle before cutting is shown;

[0030] Figure 6 for Figure 5 The chain buckle shown is a schematic diagram of a first structure after cutting;

[0031] Figure 7 for Figure 5 The chain buckle is shown in a second structural schematic diagram after cutting;

[0032] Figure 8 For application Figure 7 The schematic diagram of the structure of the cut chain buckle when binding the battery tab;

[0033] Fig. 9 This is a schematic diagram of the structure of the battery provided in Example 2 of the present application.

[0034] Among them, the reference numerals in the figure are:

[0035] 1. Battery cell; 2. Cover plate; 3. Tab;

[0036] 4. Chain buckle; 41. Buckle body; 411. First fixing part; 412. Second fixing part; 413. Fold; 414. Buckle strip; 42. Connecting strip; 43. First buckle body; 44. Second buckle body. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "top", "bottom", "inside", and "outside" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0042] Embodiment 1

[0043] Please also read Figure 2 and Figure 3 This embodiment provides a chain buckle 4, which includes a plurality of buckle bodies 41 arranged in sequence along the first direction (i.e., the Y-axis direction), each buckle body 41 is used to bind the current collector in the battery shell, and at least one connecting strip 42 is connected between two adjacent buckle bodies 41, and all the buckle bodies 41 and all the connecting strips 42 are deformable, flexible and insulating. The number of current collectors can be one or more. When there is only one current collector, the chain buckle 4 can also be buckled on the outer periphery of the current collector to prevent tearing and inverted insertion. When there are multiple current collectors, the chain buckle 4 is buckled on the outer periphery of the multiple current collectors gathered together to prevent tearing and inverted insertion of multiple current collectors at the same time.

[0044] Specifically, since each buckle body 41 and each connecting strip 42 are flexible, the bending of the current collector will not be affected when each buckle body 41 is bundled with the current collector, and each buckle body 41 is insulating, which reduces the risk of the current collector forming a short circuit with the battery cell 1 after bending. In addition, since multiple buckle bodies 41 are connected by connecting strips 42, if a single buckle body 41 is loosened, it will not fall off the battery cell 1, so as to prevent the buckle body 41 that falls after the subsequent shaping of the battery cell 1 from squeezing the battery cell 1, thereby reducing the risk of damage or short circuit of the battery cell 1. It can be understood that one or more current collectors can be gathered together to form a pole ear 3. In other words, the chain buckle 4 of the technical solution is adopted, so that when the cover plate 2 is assembled, the bending of the pole ear 3 will not be affected, and the problem of the pole ear 3 being inserted into the battery cell 1 after the cover plate 2 is assembled is solved, and the battery cell 1 will not be damaged or short-circuited after the subsequent shaping of the battery, which greatly improves the safety performance of the battery.

[0045] Please refer again Figure 2 , the first end of the buckle body 41 is provided with a first fixing portion 411, and the second end of the buckle body 41 away from the first end is provided with a second fixing portion 412, so that the flexible buckle body 41 is surrounded on the periphery of one or more current collectors, and each buckle body 41 is fixed by its own first fixing portion 411 and its own second fixing portion 412, so as to realize the function of binding and restraining one or more current collectors on the pole lug 3 at the same time. By setting the first fixing portion 411 and the second fixing portion 412, the reliability of the buckle body 41 binding the pole lug 3 is ensured. Optionally, the first fixing portion 411 can be set as a protruding clamping head, and the second fixing portion can be set as a through clamping groove, and when the clamping head is buckled into the clamping groove, the matching fixation can be realized. In other embodiments, the first fixing portion 411 and the second fixing portion 412 can also be set as a Velcro structure, and the Velcro structure can be bonded to each other to realize the function of binding the pole lug 3, or the first fixing portion 411 and the second fixing portion 412 can also be connected by nails, and the buckle body 41 can also be used to bind the pole lug 3.

[0046] Please refer again Figure 2 A fold 413 is provided on the buckle body 41, and the fold 413 is provided between the clamping head and the clamping slot. The fold 413 can facilitate the bending of the buckle body 41, simplify the bending difficulty of the buckle body 41, so as to improve the working efficiency of the operator in bundling the tab 3.

[0047] See also Figure 4A plurality of connecting strips 42 can be connected between two adjacent rows of buckle bodies 41, and all the connecting strips 42 can together form a mesh structure of the connection structure of the buckle body 41. When the pole ear 3 is broken or redundant, the connection structure of the mesh structure can increase the isolation area, thereby holding the broken or redundant pole ear 3, thereby ensuring that the pole ear 3 will not be inserted upside down into the battery cell 1, thereby further preventing the problem of the pole ear 3 being inserted upside down and causing a short circuit in the battery cell 1.

[0048] See also Figure 5 The buckle body 41 may include a plurality of directly or indirectly connected buckle strips 414, and each buckle strip 414 is provided with the above-mentioned second fixing portion 412 and the above-mentioned first fixing portion 411 that are fixed together. By designing the buckle body 41 in this way, the operator can adaptively cut the entire chain buckle 4 according to the actual outer dimensions and actual height of the pole lug 3, and when the chain buckle 4 is cut, each buckle body 41 includes at least one buckle strip 414, so that each buckle body 41 in the cut chain buckle 4 can bundle the pole lug 3, that is, the chain buckle 4 of this embodiment can simultaneously meet the bundling requirements of pole lugs 3 of multiple different sizes.

[0049] See also Figure 6 After the chain buckle 4 is cut, the chain buckle 4 includes at least one first buckle body 43, and the first buckle body 43 includes a plurality of buckle strips 414 directly connected in sequence, that is, the buckle strips 414 can be connected in sequence perpendicular to the first direction, and all the buckle strips 414 in the first buckle body 43 are wrapped around the periphery of the pole ear 3, that is, assuming that there are N (N is a positive integer greater than or equal to 1) current collectors in the pole ear 3, then all the buckle strips 414 in the first buckle body 43 are connected in sequence and directly bundle the N current collectors collected together in the pole ear 3, that is, the first fixing portion 411 of the buckle strip 414 located at the first end and the second fixing portion 412 of the buckle strip 414 located at the second end are fixed together, thereby realizing the bundling constraint of the N current collectors.

[0050] Please also read Figure 7 and Figure 8The chain buckle 4 may also include at least one second buckle body 44, the second buckle body 44 includes a plurality of buckle strips 414 arranged in sequence at intervals (that is, all the buckle strips 414 in the second buckle body 44 are not connected in a direction perpendicular to the first direction), but all the buckle strips 414 in the second buckle body 44 are connected to another or two adjacent buckle bodies 41 (that is, all two adjacent buckle strips 414 in the second buckle body 44 are indirectly connected through another or two buckle bodies 41), that is, all the buckle strips 414 in the second buckle body 44 are connected to the adjacent buckle bodies 41 along the first direction. Assuming that there are N current collectors in the pole ear 3, and the N current collectors are divided into M strands at a local position, then correspondingly, the second buckle body 44 includes M buckle strips 414 arranged at intervals, and each buckle strip 414 in the second buckle body 44 is used to bundle a corresponding strand of current collector. Of course, in this scheme, the M value is a positive integer greater than 1, and the N value is a positive integer greater than or equal to 2. Among them, the second buckle body 44 can be completed by cutting, or directly produced. By disconnecting the buckle strip 414 perpendicular to the first direction, the M strands of current collectors can be bundled separately in the direction perpendicular to the first direction at the same time to improve the binding firmness. When the number of current collectors is large, it is avoided that the length of a buckle body is not enough to be bundled, or multiple current collectors are bundled at one time, resulting in the current collectors being unable to be bent smoothly.

[0051] Please read again Figure 7 and Figure 8 In the chain buckle 4, the first or first several buckle bodies 41 along the Y-axis direction can be designed as the above-mentioned first buckle body 43, and the last or more buckle bodies 41 along the Y-axis direction can be designed as the above-mentioned second buckle body 44, wherein the Y-axis direction specifically points to the direction of the root of the current collector, and the position where the current collector and the battery cell 1 are connected is the root position of the current collector. Specifically, at the root position of the current collector, the span of multiple current collectors is relatively large. If the root position of the current collector is only bound as one strand by the buckle body 41, the reaction force of the multiple current collectors on the buckle body 41 at the root position will be relatively large, which is more likely to cause the buckle body 41 at the root position to loosen. Therefore, by dividing the multiple current collectors into multiple strands at the root position and using the second buckle body 44 to respectively bind the multiple strands of current collectors at the root of the pole lug 3, the reliability and stability of the binding of the pole lug 3 at the root position can be ensured, thereby further preventing the pole lug 3 from being inserted back into the battery cell 1 when bent. At the same time, by setting the second buckle body 44 at the root position of the pole lug 3, it can also ensure that the multiple current collectors in the pole lug 3 have sufficient contact area, so as to improve the stability of battery charging and discharging.

[0052] Embodiment 2

[0053] See also Fig. 9 , this embodiment provides a battery, which includes a shell (not shown in the figure), a battery cell 1, a cover plate 2, a pole ear 3 and the chain buckle 4 described in the above embodiment 1, wherein the battery cell 1 is installed in the shell, the pole ear 3 is respectively connected to the battery cell 1 and the cover plate 2, and the cover plate 2 is sealed with the shell to separate the battery cell 1 from the external environment, so that the battery cell 1 will not be invaded by external liquid, and the reliability and stability of charging and discharging of the battery cell 1 are ensured. The pole ear 3 is composed of one or more current collectors collected together, and the multiple buckle bodies 41 in the chain buckle 4 jointly bind one or more current collectors in the pole ear 3, so that when the cover plate 2 is assembled on the shell, the pole ear 3 can be reliably bent and will not be inserted into the battery cell 1 backwards, and because the chain buckle 4 of this solution has deformable flexibility, the pole ear 3 will not be inserted into the battery cell 1 backwards in the subsequent process of shaping the battery shape, and the pole ear 3 and the battery cell 1 will not be damaged, thereby greatly reducing the risk of short circuit in the battery cell 1 and improving the safety performance of the battery.

[0054] In this embodiment, two pole ears 3 are preferably connected between the cover plate 2 and the battery cell 1, wherein one pole ear 3 serves as a positive pole and the other pole ear 3 serves as a negative pole, and both pole ears 3 are provided with the above-mentioned chain buckle 4. In other words, the positive and negative poles of the battery are integrated on the cover plate 2.

[0055] In other embodiments, only one pole ear 3 may be connected between the cover plate 2 and the battery cell 1, so that the cover plate 2 only serves as one of the positive or negative electrodes of the battery. The shell in this solution serves as the other electrode of the battery, that is, the polarity of the shell is opposite to the polarity of the cover plate 2. When the cover plate 2 is the positive electrode, the shell will be the negative electrode, and when the cover plate 2 is the negative electrode, the shell will be the positive electrode. Of course, this solution requires that the cover plate 2 and the shell be designed to be insulated and sealed to avoid battery short circuit. It should be noted that a pole is provided on the cover plate 2, and the pole ear 3 is connected to the pole column to achieve electrical connection. When the pole ear 3 is a positive pole ear, the connected pole column is a positive pole column, and when the pole ear 3 is a negative pole ear, the connected pole column is a negative pole column.

[0056] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A chain buckle, characterized in that: The invention comprises a plurality of buckle bodies (41) arranged in sequence and at intervals along a first direction, at least one connecting strip (42) being connected between two adjacent buckle bodies (41), the connecting strip (42) and the buckle bodies (41) being both flexible and insulating soft components, and the buckle bodies (41) being used for binding current collectors in a battery shell.

2. The chain buckle according to claim 1, characterized in that: A first fixing portion (411) is convexly provided at the first end of the buckle body (41), and a second fixing portion (412) is provided at the second end of the buckle body (41) away from the first end; when the first fixing portion (411) and the second fixing portion (412) are matched and fixed, the buckle body (41) is used to bind the current collector; The first fixing portion (411) is a protruding clamping head, and the second fixing portion (412) is a penetrating clamping slot, and the clamping head can be buckled into the clamping slot to achieve matching fixation.

3. The chain buckle according to claim 2, characterized in that: The buckle body (41) is provided with a fold (413), and the fold (413) is provided between the first fixing portion (411) and the second fixing portion (412).

4. The chain buckle according to claim 1, characterized in that: A plurality of connecting strips (42) are connected between two adjacent rows of the buckle bodies (41), and the plurality of connecting strips (42) form a mesh-like connecting structure, which connects the two adjacent rows of the buckle bodies (41).

5. The chain buckle according to claim 2, characterized in that: At least one of the buckle bodies (41) comprises a plurality of directly or indirectly connected buckle strips (414), each of the buckle strips (414) being provided with the second fixing portion (412) and the first fixing portion (411) that cooperate with each other, and the buckle strips (414) are used to bind the current collector.

6. The chain buckle according to claim 5, characterized in that: The battery housing has N current collectors gathered together, where N is a positive integer greater than or equal to 1; The plurality of snap-on bodies (41) include at least one first snap-on body (43), the first snap-on body (43) including a plurality of snap-on strips (414) directly connected in sequence, and all the snap-on strips (414) in the first snap-on body (43) are wrapped around the periphery of the N current collectors gathered together to bundle the N current collectors.

7. The chain buckle according to claim 5, characterized in that: The battery housing has N current collectors gathered together, and the N current collectors are divided into M strands at local positions, where M is a positive integer greater than 1, and N is a positive integer greater than or equal to 2; The plurality of snap-on bodies (41) include at least one second snap-on body (44), the second snap-on body (44) including M snap-on strips (414) arranged in sequence and at intervals, all the snap-on strips (414) in the second snap-on body (44) are connected to another adjacent snap-on body (41), so that all the snap-on strips (414) in the second snap-on body (44) are indirectly connected, and each of the snap-on strips (414) in the second snap-on body (44) is used to bind a corresponding stream of the current collector.

8. The chain buckle according to claim 7, characterized in that: At least one of the buckle bodies (41) at the end along the first direction is the second buckle body (44), the first direction is a direction gradually approaching the root of the current collector, and the position where the current collector is connected to the battery core is the root of the current collector.

9. A battery, characterized in that: The invention comprises a shell, a battery cell (1), a cover plate (2), a pole lug (3) and the chain buckle (4) as claimed in any one of claims 1 to 8, wherein the battery cell (1) is arranged in the shell, the pole lug (3) is respectively connected to the battery cell (1) and the cover plate (2), the cover plate (2) is sealed to the shell to separate the battery cell (1) from the external environment, the pole lug (3) comprises a current collector, and a plurality of buckle bodies (41) in the chain buckle (4) jointly bind the current collector in the pole lug (3).

10. The battery according to claim 9, characterized in that Two pole lugs (3) are connected between the battery cell (1) and the cover plate (2), one of the pole lugs (3) serves as a positive pole and the other pole lug (3) serves as a negative pole, and the chain buckles (4) are provided on both pole lugs (3).

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