Lower insulation assembly, top cover assembly and battery

Abstract

The utility model discloses a lower insulation assembly, top cover assembly and battery, the lower insulation assembly is used for the top cover assembly of the battery, the top cover assembly is provided with a pole, the lower insulation assembly comprises a lower insulation body, one side of the lower insulation body in the thickness direction is provided with a containing groove, the containing groove comprises a mounting groove, and a part of the pole is arranged in the mounting groove; and the lower insulating insert is arranged between the pole and the inner peripheral wall of the mounting groove and is connected with the inner peripheral wall of the mounting groove. According to the lower insulation assembly disclosed by the utility model, when the specification of a battery needing to be developed changes, the pole posts with different specifications can be matched with the lower insulation bodies with different specifications by adaptively developing and replacing the lower insulation insert, so that the whole lower insulation assembly is prevented from being redeveloped and replaced, and the development cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a lower insulation component, a top cover component and a battery. Background Art

[0002] The top cover assembly of the battery is the core component of safety and sealing, and its performance stability is crucial to the top cover assembly. However, due to different battery specifications, the top cover assembly development specifications are different, so the corresponding lower insulation assembly and pole need to be redeveloped, which is costly. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a lower insulation component, which avoids redevelopment and replacement of the entire lower insulation component, saving development costs.

[0004] The utility model also provides a top cover assembly, comprising the above-mentioned lower insulation assembly.

[0005] According to the lower insulating assembly of the embodiment of the utility model, a top cover assembly for a battery, the top cover assembly has a pole, and the lower insulating assembly includes: a lower insulating body, one side of the lower insulating body in the thickness direction has a receiving groove, the receiving groove includes a mounting groove, part of the pole is arranged in the mounting groove; a lower insulating insert, the lower insulating insert is arranged between the pole and the inner circumferential wall of the mounting groove, and is connected to the inner circumferential wall of the mounting groove.

[0006] According to the lower insulating assembly of the embodiment of the utility model, part of the pole is arranged in the installation groove; the lower insulating insert is arranged between the pole and the inner circumferential wall of the installation groove, and is connected to the inner circumferential wall of the installation groove. When the battery specifications to be developed change, the lower insulating insert can be adaptively developed and replaced to meet the adaptation of poles of different specifications and lower insulating bodies of different specifications, thereby avoiding redevelopment and replacement of the entire lower insulating assembly and saving development costs.

[0007] In some embodiments of the present invention, the lower insulating insert is detachably connected to the inner peripheral wall of the mounting groove.

[0008] In some embodiments of the utility model, a plurality of protrusions spaced apart along the circumferential direction of the mounting groove are provided on the inner circumferential wall of the mounting groove, and a plurality of grooves spaced apart along the length direction of the lower insulating insert are provided on the side of the lower insulating insert facing away from the pole, and the grooves and the protrusions correspond to each other and cooperate with each other one by one.

[0009] In some embodiments of the present invention, along the concave direction of the groove, the depth of the groove is L1, and the width of the lower insulating insert is L2, wherein 0.3mm<L1<1.5mm; 0.5mm<L2-L1.

[0010] In some embodiments of the present invention, the lower insulating insert is spaced apart from the pole, and the distance between the lower insulating insert and the pole is L3, wherein 0.05 mm<L3<0.15 mm.

[0011] In some embodiments of the utility model, the accommodating groove has a plurality of ribs spaced apart along the length direction of the lower insulating body, and the mounting groove is formed between two adjacent ones of the ribs and the two side walls and the bottom wall in the width direction of the accommodating groove, and along the thickness direction of the lower insulating body, the height of the ribs is the same as the height of the lower insulating insert.

[0012] In some embodiments of the present invention, the lower insulating insert is a plurality of lower insulating inserts spaced apart along the circumferential direction of the mounting groove.

[0013] In some embodiments of the present invention, the lower insulating insert is one and annular, and the lower insulating insert is arranged around the pole.

[0014] The top cover assembly according to the embodiment of the utility model includes the above-mentioned lower insulation assembly.

[0015] According to the top cover assembly of the embodiment of the utility model, part of the pole is arranged in the mounting groove by setting the above-mentioned lower insulating assembly; the lower insulating insert is arranged between the pole and the inner circumferential wall of the mounting groove, and is connected to the inner circumferential wall of the mounting groove. When the battery specifications to be developed change, the poles of different specifications and the lower insulating bodies of different specifications can be adapted by adaptively developing and replacing the lower insulating insert, thereby avoiding redevelopment and replacement of the entire lower insulating assembly and saving development costs.

[0016] A battery according to an embodiment of the utility model includes the above-mentioned top cover assembly.

[0017] According to the battery of the embodiment of the utility model, by setting the above-mentioned top cover assembly and the above-mentioned lower insulating assembly, part of the pole is set in the installation groove; the lower insulating insert is set between the pole and the inner circumferential wall of the installation groove, and is connected to the inner circumferential wall of the installation groove. When the specifications of the battery to be developed change, the adaptation of poles of different specifications and lower insulating bodies of different specifications can be met through adaptive development and replacement of the lower insulating insert, thereby avoiding redevelopment and replacement of the entire lower insulating assembly, saving development costs.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is an exploded view of a top cover assembly according to an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0022] Figure 3 is a bottom view of a lower insulating assembly according to an embodiment of the utility model;

[0023] Figure 4 is a three-dimensional diagram of a lower insulating insert of a lower insulating assembly according to an embodiment of the utility model;

[0024] Figure 5 is a top view of a lower insulating insert of a lower insulating assembly according to an embodiment of the utility model;

[0025] Figure 6 It is a front view of the lower insulating insert of the lower insulating assembly according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100. Top cover assembly;

[0028] 10. Lower insulation assembly;

[0029] 1. Lower insulating body; 11. Accommodating groove; 12. Mounting groove; 121. Mounting hole; 122. Protrusion; 13. Raised rib; 14. Reinforcing rib;

[0030] 2. Lower insulating insert; 21. Groove;

[0031] 20. Pole; 201. Connecting portion; 202. Extending portion;

[0032] 30. Sealing ring;

[0033] 40. cover body; 401. through hole;

[0034] 50. Upper insulation;

[0035] 60. Connection block. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Reference below Figure 1-Figure 6 The lower insulation assembly 10 according to an embodiment of the present invention is described.

[0040] like Figure 1-Figure 6 As shown, the lower insulation assembly 10 according to the embodiment of the utility model includes: a lower insulation body 1 and a lower insulation insert 2.

[0041] Specifically, refer to Figure 1-Figure 6 The lower insulating assembly 10 is used for the top cover assembly 100 of the battery. The top cover assembly 100 has a pole 20. One side of the lower insulating body 1 in the thickness direction has a receiving groove 11. The receiving groove 11 includes a mounting groove 12. Part of the pole 20 is arranged in the mounting groove 12; the lower insulating insert 2 is arranged between the pole 20 and the inner circumferential wall of the mounting groove 12, and is connected to the inner circumferential wall of the mounting groove 12.

[0042] It should be noted that the pole 20 includes a connecting portion 201 and an extending portion 202, the cross-sectional area of ​​the connecting portion 201 is larger than the cross-sectional area of ​​the extending portion 202, the connecting portion 201 is arranged in the mounting groove 12, the bottom wall of the mounting groove 12 is provided with a mounting hole 121, and the extending portion 202 is penetrated in the mounting hole 121, so as to facilitate the output current of the pole 20. The lower insulating insert 2 is arranged between the peripheral wall of the connecting portion 201 and the inner peripheral wall of the mounting groove 12, so as to facilitate the limiting and fixing of the pole 20.

[0043] It is understandable that when a new battery is developed and the battery specifications change, the pole 20 and the lower insulating assembly 10 need to be adapted so that the pole 20 and the lower insulating assembly 10 can be installed and fixed together. Therefore, when the size of the pole 20 changes, the entire lower insulating assembly 10 needs to be redeveloped and replaced, and when the size of the lower insulating assembly 10 changes, the pole 20 needs to be redeveloped and replaced.

[0044] In the present invention, by changing the size of the lower insulating insert 2 (for example, changing the width of the lower insulating insert 2), poles 20 of different specifications and lower insulating bodies 1 of different specifications can be adapted together. Therefore, when the battery specifications to be developed change, the poles 20 of different specifications and the lower insulating bodies 1 of different specifications can be adapted by adaptively developing and replacing the lower insulating insert 2, thereby avoiding the need to redevelop and replace the entire lower insulating assembly 10, saving development costs.

[0045] For example, when the specification of the pole 20 (for example, the cross-sectional size of the pole 20) changes, the newly developed pole 20 can still be adapted to the old lower insulating body 1 through adaptive development and replacement of the lower insulating insert 2, without the need to redevelop and replace the lower insulating body 1; for example, when the specification of the lower insulating body 1 (for example, the cross-sectional size of the lower insulating body 1) changes, the newly developed lower insulating body 1 can still be adapted to the old pole 20 through adaptive development and replacement of the lower insulating insert 2, without the need to redevelop and replace the pole 20.

[0046] In addition, when the heat resistance, insulation performance and mechanical properties of the lower insulating component 10 cannot meet the product requirements, the heat resistance, insulation performance and mechanical properties can be increased by changing the material of the lower insulating insert 2, so that the heat resistance, insulation performance and mechanical properties of the lower insulating component 10 meet the product requirements. Since the material cost of better heat resistance, insulation performance and mechanical properties is higher, compared with the lower insulating component 10 which only includes the lower insulating body 1, and increases the heat resistance, insulation performance and mechanical properties by changing the material of the lower insulating body 1 to meet the product requirements, the cost of the lower insulating component 10 is lower.

[0047] For example, the improvement of heat resistance can reduce the heating of the pole 20 and the melting of the lower insulating component 10, thereby meeting the product's requirements for heat resistance. The improvement of insulation performance can reduce the breakdown of the lower insulating component 10, thereby reducing the risk of leakage, thereby meeting the product's requirements for insulation performance. The improvement of mechanical properties can reduce the deformation of the lower insulating component 10 and improve the product's precision, thereby meeting the product's requirements for mechanical properties.

[0048] Preferably, the material properties of the lower insulating insert 2, such as heat resistance, insulation and mechanical properties, are better than those of the lower insulating component 10. For example, the lower insulating component 10 is made of PP (Polypropylene), and the lower insulating insert 2 can be made of gum resin or insulating alloy material, so that the overall performance of the lower insulating component 10 can meet product requirements and save costs.

[0049] According to the lower insulating component 10 of the embodiment of the utility model, part of the pole 20 is arranged in the installation groove 12, and the lower insulating insert 2 is arranged between the pole 20 and the inner circumferential wall of the installation groove 12, and is connected to the inner circumferential wall of the installation groove 12. When the battery specifications to be developed change, the lower insulating insert 2 can be adaptively developed and replaced to meet the adaptation of poles 20 of different specifications and lower insulating bodies 1 of different specifications, thereby avoiding redevelopment and replacement of the entire lower insulating component 10 and saving development costs.

[0050] In some embodiments of the utility model, the lower insulating insert 2 is detachably connected to the inner peripheral wall of the mounting groove 12. Thus, the split design of the lower insulating insert 2 and the lower insulating body 1 is realized, so that the lower insulating insert 2 and the lower insulating body 1 are designed independently, so that it is convenient to adapt to different specifications of poles 20 and different specifications of lower insulating bodies 1 through adaptive development and replacement of the lower insulating insert 2, further avoiding the redevelopment and replacement of the entire lower insulating assembly 10, saving the development cost.

[0051] For example, in the present invention, the lower insulating insert 2 is connected to the inner wall of the mounting groove 12 by snapping, but the present invention is not limited thereto. The lower insulating insert 2 and the inner wall of the mounting groove 12 can also be connected by fasteners such as screws.

[0052] In some embodiments of the present invention, Figure 1-Figure 6 As shown, the inner wall of the mounting groove 12 is provided with a plurality of protrusions 122 spaced apart along the circumferential direction of the mounting groove 12, and the side of the lower insulating insert 2 facing away from the pole 20 is provided with a plurality of grooves 21 spaced apart along the length direction of the lower insulating insert 2, and the grooves 21 and the protrusions 122 correspond to each other and cooperate with each other.

[0053] Thus, through the mutual cooperation of the groove 21 and the protrusion 122, the lower insulating insert 2 and the lower insulating body 1 can be connected by snapping, which improves the connection reliability between the lower insulating insert 2 and the lower insulating body 1 and improves the installation stability of the lower insulating insert 2. At the same time, the lower insulating insert 2 and the lower insulating body 1 are set separately, so that the lower insulating insert 2 and the lower insulating body 1 are designed independently, so that it is convenient to adapt to different specifications of poles 20 and different specifications of lower insulating bodies 1 through adaptive development and replacement of the lower insulating insert 2, further avoiding the redevelopment and replacement of the entire lower insulating assembly 10, saving the development cost.

[0054] For example, Figure 1-Figure 6 In the example shown, four protrusions 122 are provided on the inner wall of the mounting groove 12, and four grooves 21 are provided on the lower insulating insert 2, but the utility model is not limited to this, and the protrusions 122 and the grooves 21 can be other numbers, such as 3, 5, 6 or 7, etc.

[0055] In some embodiments of the present invention, Figure 5 As shown, along the concave direction of the groove 21, the depth of the groove 21 is L1, and the width of the lower insulating insert 2 is L2, wherein 0.3mm<L1<1.5mm, 0.5mm<L2-L1. For example, L1 can be 0.4mm, 0.5mm, 0.6mm or 1.4mm, etc., and L2-L1 can be 0.6mm, 0.7mm, 0.8mm or 0.9mm, etc.

[0056] It is understandable that 0.3mm<L1<1.5mm, so that the depth of the groove 21 is appropriate, not only the groove 21 has a sufficient depth, thereby ensuring the connection reliability between the lower insulating insert 2 and the lower insulating body 1, but also the groove 21 can be prevented from being too deep, thereby preventing the lower insulating insert 2 from breaking and ensuring the strength of the lower insulating insert 2.

[0057] In some embodiments of the present invention, Figure 3 As shown, the lower insulating insert 2 is spaced apart from the pole 20, and the spacing between the lower insulating insert 2 and the pole 20 is L3, wherein 0.05mm<L3<0.15mm, for example, L3 can be 0.06mm, 0.08mm, 0.1mm or 0.15mm. Thus, there is a certain gap between the lower insulating insert 2 and the pole 20, thereby ensuring that the lower insulating insert 2 has a certain deformation range, thereby avoiding damage to the pole 20 caused by the thermal expansion characteristics of the lower insulating insert 2. At the same time, the limiting effect on the pole 20 is also ensured, and the installation stability of the pole 20 is ensured.

[0058] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the accommodating groove 11 has a plurality of ribs 13 spaced apart along the length direction of the lower insulating body 1, and a mounting groove 12 is formed between two adjacent ribs 13 and the two side walls and the bottom wall in the width direction of the accommodating groove 11. Along the thickness direction of the lower insulating body 1, the height of the ribs 13 is the same as the height of the lower insulating insert 2.

[0059] It can be understood that the rib 13 extends along the width direction of the lower insulating body 1. The provision of the rib 13 can improve the structural strength of the lower insulating body 1. The height of the rib 13 is the same as the height of the lower insulating insert 2, so that there is enough space in the accommodating groove 11, thereby avoiding installation interference between the lower insulating insert 2 and other structures.

[0060] Furthermore, if Figure 1 and Figure 2 As shown, the accommodating groove 11 has a plurality of reinforcing ribs 14 spaced apart along the width direction of the lower insulating body 1, the reinforcing ribs 14 extend along the length direction of the lower insulating body 1, and are arranged between two adjacent convex ribs 13 except for the mounting groove 12, wherein the reinforcing ribs 14 are spaced apart from the mounting groove 12, thereby, the arrangement of the reinforcing ribs 14 further improves the structural strength of the lower insulating body 1.

[0061] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the lower insulating insert 2 is a plurality of pieces spaced apart along the circumferential direction of the mounting groove 12. Thus, the limiting effect on the pole 20 is improved, and the installation stability of the pole 20 is improved.

[0062] For example, Figure 1-Figure 4 In the example shown, there are two lower insulating inserts 2, which are respectively arranged on opposite sides of the mounting groove 12 in the width direction. However, the present invention is not limited to this. There may be more lower insulating inserts 2, such as 3, 4, 5 or 6.

[0063] In some embodiments of the present invention, the lower insulating insert 2 is one and annular, and the lower insulating insert 2 is arranged around the pole 20. Thus, the limiting effect of the pole 20 is improved, and the installation stability of the pole 20 is improved.

[0064] Reference below Figure 1 A top cover assembly 100 according to an embodiment of the present invention is described.

[0065] like Figure 1 As shown, the top cover assembly 100 according to the embodiment of the present invention includes the above-mentioned lower insulation assembly 10.

[0066] Furthermore, if Figure 1As shown, the top cover assembly 100 further includes: a cover body 40, a sealing ring 30, an upper insulating member 50 and a connecting block 60. Among them, one side of the lower insulating assembly 10 in the thickness direction has a battery cell, the notch of the accommodating groove 11 faces the battery cell, the battery cell is connected to the connecting portion 201 of the pole 20, the cover body 40 is arranged on the side of the lower insulating assembly 10 away from the battery cell, the cover body 40 has a through hole 401 for the extension portion 202 of the pole 20 to pass through, the sealing ring 30 is sleeved on the extension portion 202 of the pole 20, and at least partially arranged in the through hole 401.

[0067] The cover body 40 is used to protect the internal structure of the battery, such as the battery cell, etc. Since the cover body 40 has high structural strength, is mostly made of metal, and has conductivity, it is necessary to set a sealing ring 30 between the extension part 202 and the cover body 40 to achieve insulation between the extension part 202 and the cover body 40, thereby reducing the risk of leakage. At the same time, it can reduce the leakage of electrolyte in the battery, thereby improving the sealing and increasing the safety of the battery.

[0068] The upper insulating member 50 is disposed on the side of the cover body 40 away from the lower insulating assembly 10. The side of the upper insulating member 50 away from the cover body 40 has an escape groove, the connecting block 60 is disposed in the escape groove, and the extension portion 202 is passed through the connecting block 60 and the upper insulating member 50, thereby realizing the output of current. The upper insulating member 50 is used for insulation between the cover body 40 and the connecting block 60, thereby further reducing the risk of leakage and improving the safety of the battery.

[0069] According to the top cover assembly 100 of the embodiment of the utility model, by setting the above-mentioned lower insulating assembly 10, part of the pole 20 is set in the installation groove 12, and the lower insulating insert 2 is set between the pole 20 and the inner circumferential wall of the installation groove 12, and is connected to the inner circumferential wall of the installation groove 12. When the battery specifications to be developed change, the lower insulating insert 2 can be adaptively developed and replaced to meet the adaptation of poles 20 of different specifications and lower insulating bodies 1 of different specifications, thereby avoiding redevelopment and replacement of the entire lower insulating assembly 10, saving development costs.

[0070] A battery according to an embodiment of the present invention is described below.

[0071] The battery according to the embodiment of the present invention includes the above-mentioned top cover assembly 100 .

[0072] According to the battery of the embodiment of the utility model, by setting the above-mentioned top cover assembly 100 and the above-mentioned lower insulating assembly 10, part of the pole 20 is set in the installation groove 12, and the lower insulating insert 2 is set between the pole 20 and the inner circumferential wall of the installation groove 12, and is connected to the inner circumferential wall of the installation groove 12. When the battery specifications to be developed change, the poles 20 of different specifications and the lower insulating bodies 1 of different specifications can be adapted by adaptively developing and replacing the lower insulating insert 2, thereby avoiding redevelopment and replacement of the entire lower insulating assembly 10, saving development costs.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0074] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lower insulation assembly, characterized in that: A top cover assembly for a battery, the top cover assembly having a pole, the lower insulating assembly comprising: A lower insulating body, wherein one side of the lower insulating body in the thickness direction has a receiving groove, the receiving groove includes a mounting groove, and a portion of the pole is arranged in the mounting groove; A lower insulating insert is disposed between the pole and the inner peripheral wall of the mounting groove and is connected to the inner peripheral wall of the mounting groove.

2. The lower insulation assembly according to claim 1, characterized in that: The lower insulating insert is detachably connected to the inner peripheral wall of the mounting groove.

3. The lower insulation assembly according to claim 2, characterized in that: The inner wall of the mounting groove is provided with a plurality of protrusions spaced apart along the circumferential direction of the mounting groove, and the side of the lower insulating insert away from the pole is provided with a plurality of grooves spaced apart along the length direction of the lower insulating insert, and the grooves correspond to and match the protrusions one by one.

4. The lower insulation assembly according to claim 3, characterized in that: Along the concave direction of the groove, the depth of the groove is L1, and the width of the lower insulating insert is L2, wherein 0.3mm<L1<1.5mm; 0.5mm<L2-L1.

5. The lower insulation assembly according to claim 1, characterized in that: The lower insulating insert is spaced apart from the pole, and the distance between the lower insulating insert and the pole is L3, wherein 0.05 mm<L3<0.15 mm.

6. The lower insulation assembly according to claim 1, characterized in that: The accommodating groove has a plurality of ribs spaced apart along the length direction of the lower insulating body, and the mounting groove is formed between two adjacent ribs and the two side walls and the bottom wall in the width direction of the accommodating groove. Along the thickness direction of the lower insulating body, the height of the ribs is the same as the height of the lower insulating insert.

7. The lower insulation assembly according to claim 1, characterized in that: The lower insulating inserts are multiple and spaced apart along the circumferential direction of the mounting groove.

8. The lower insulation assembly according to claim 1, characterized in that: The lower insulating insert is one and annular, and is arranged around the pole.

9. A top cover assembly, characterized in that: It comprises a lower insulation assembly according to any one of claims 1-8.

10. A battery, characterized in that: Comprising a top cover assembly according to claim 9.

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