Battery cover plate and battery

Abstract

The battery cover plate comprises a cover plate body, an anti-explosion hole is formed in the cover plate body, a first reinforcing rib is arranged in the anti-explosion hole, the first reinforcing rib extends in the length direction of the anti-explosion hole, the two ends of the first reinforcing rib in the length direction are connected with the inner circumferential wall of the anti-explosion hole, the width of the anti-explosion hole is L1, and the width of the anti-explosion hole is L2. The width of the first reinforcing rib is H1, and H1 ranges from 0.5 mm to 3 mm. According to the battery cover plate disclosed by the utility model, the first reinforcing rib can prevent the anti-explosion valve from falling into the anti-explosion hole, so that the collapse of the anti-explosion valve is reduced, the reliability of the anti-explosion valve is improved, and the safety of the battery is improved. Meanwhile, the first reinforcing rib has a proper width, so that on one hand, the first reinforcing rib reliably blocks falling of the anti-explosion valve, and on the other hand, the situation that the width of the first reinforcing rib is too large to block exhaust of out-of-control gas is avoided, and therefore, smooth exhaust of the gas and exhaust efficiency are ensured, and the safety of the battery is improved.

Description

Technical Field

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

[0002] In order to ensure the safety of the battery, an explosion-proof valve is generally installed on the battery cover. When the battery has an accident due to improper charging and discharging, short circuit or exposure to high temperature and other harsh environments, the high-energy battery will produce a large amount of gas and the temperature will rise sharply. The gas will open the explosion-proof valve to achieve the purpose of pressure relief. However, since there is an explosion-proof hole for exhaust on the lower side of the explosion-proof valve, the explosion-proof valve is easy to collapse and fall into the explosion-proof hole, which can easily cause the explosion-proof valve to fail. Therefore, improvements are needed to prevent the explosion-proof valve from falling into the explosion-proof hole. At the same time, on this basis, the exhaust effect of the explosion-proof valve also needs to be considered to ensure the safety of the battery. 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 proposes a battery cover, which can prevent the explosion-proof valve from falling into the explosion-proof hole and reduce the collapse of the explosion-proof valve, while also ensuring the smooth discharge of gas and the exhaust efficiency, thereby improving the safety of the battery.

[0004] The utility model also provides a battery, comprising the battery cover plate mentioned above.

[0005] According to the battery cover plate of the embodiment of the utility model, it includes: a cover plate body, the cover plate body has an explosion-proof hole, a first reinforcing rib is arranged in the explosion-proof hole, the first reinforcing rib extends along the length direction of the explosion-proof hole, both ends of the first reinforcing rib in the length direction are connected to the inner peripheral wall of the explosion-proof hole, the width of the first reinforcing rib is H1, and H1 is 0.5mm-3mm.

[0006] According to the battery cover of the embodiment of the utility model, a first reinforcing rib is provided in the explosion-proof hole, the first reinforcing rib extends along the length direction of the explosion-proof hole, the two ends of the first reinforcing rib in the length direction are connected to the inner peripheral wall of the explosion-proof hole, the width of the first reinforcing rib is H1, H1 is 0.5mm-3mm, so that the first reinforcing rib can prevent the explosion-proof valve from falling into the explosion-proof hole, reduce the collapse of the explosion-proof valve, improve the reliability of the explosion-proof valve, and improve the safety of the battery. At the same time, the first reinforcing rib has a suitable width, on the one hand, the first reinforcing rib can reliably prevent the explosion-proof valve from falling, on the other hand, it also avoids the first reinforcing rib from being too wide to block the discharge of uncontrolled gas, thereby ensuring the smooth discharge of gas, ensuring the exhaust efficiency, and thus improving the safety of the battery.

[0007] In some embodiments of the utility model, a second reinforcing rib is further provided in the explosion-proof hole, wherein the second reinforcing rib extends along the width direction of the explosion-proof hole, both ends of the second reinforcing rib in the length direction are connected to the inner circumferential wall of the explosion-proof hole, and the first reinforcing rib and the second reinforcing rib are cross-arranged.

[0008] In some embodiments of the present invention, the width of the second reinforcing rib is H2, and H2 is 0.5 mm-3 mm.

[0009] In some embodiments of the present invention, there are multiple second reinforcing ribs that are spaced apart in the length direction of the explosion-proof hole, and each of the second reinforcing ribs is arranged crosswise with the first reinforcing rib.

[0010] In some embodiments of the present invention, the distance between two adjacent second reinforcing ribs is L1, the length of the explosion-proof hole is L2, and 2 / 3≥L1 / L2≥1 / 3.

[0011] In some embodiments of the utility model, a third reinforcing rib is provided in the explosion-proof hole, the third reinforcing rib is annular, the third reinforcing rib is spaced apart from the inner wall of the explosion-proof hole, and the third reinforcing rib is cross-arranged with the first reinforcing rib and / or the second reinforcing rib.

[0012] In some embodiments of the utility model, one side of the cover body in the thickness direction has a mounting groove, the explosion-proof hole is arranged on the bottom wall of the mounting groove, and the battery cover also includes: an explosion-proof valve, which is arranged in the mounting groove and connected to the cover body; a protective patch, which is arranged on the side of the explosion-proof valve away from the explosion-proof hole and connected to the cover body.

[0013] In some embodiments of the present invention, the first reinforcing rib is spaced apart from the bottom wall of the mounting groove in the thickness direction of the cover plate body, and the distance between the first reinforcing rib and the bottom wall of the mounting groove is H3, H3≥0.5mm.

[0014] In some embodiments of the present invention, there are multiple first reinforcing ribs, and the multiple first reinforcing ribs are spaced apart in the width direction of the explosion-proof hole; or, there is one first reinforcing rib.

[0015] A battery according to an embodiment of the utility model includes the above-mentioned battery cover.

[0016] According to the battery of the embodiment of the utility model, by setting the above-mentioned battery cover, a first reinforcing rib is provided in the explosion-proof hole, the first reinforcing rib extends along the length direction of the explosion-proof hole, and the two ends of the first reinforcing rib in the length direction are connected to the inner peripheral wall of the explosion-proof hole. The width of the first reinforcing rib is H1, and H1 is 0.5mm-3mm. The first reinforcing rib can prevent the explosion-proof valve from falling into the explosion-proof hole, reduce the collapse of the explosion-proof valve, improve the reliability of the explosion-proof valve, and improve the safety of the battery. At the same time, the first reinforcing rib has a suitable width. On the one hand, the first reinforcing rib can reliably prevent the explosion-proof valve from falling. On the other hand, it also avoids the first reinforcing rib from being too wide to block the discharge of uncontrolled gas, thereby ensuring the smooth discharge of gas and the exhaust efficiency, thereby improving the safety of the battery.

[0017] 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

[0018] 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:

[0019] Figure 1 is a three-dimensional diagram of a battery cover according to an embodiment of the utility model;

[0020] Figure 2 is an exploded view of a battery cover according to an embodiment of the utility model, wherein the protective patch is not shown;

[0021] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0022] Figure 4 is a top view of a cover plate body of a battery cover plate according to an embodiment of the utility model;

[0023] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0024] Reference numerals:

[0025] 10. Battery cover;

[0026] 1. Cover plate body; 11. First reinforcing rib; 12. Second reinforcing rib; 13. Mounting groove; 14. Explosion-proof hole;

[0027] 2. Explosion-proof valve;

[0028] 3. Protective patch. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Reference below Figure 1-Figure 5 A battery cover 10 according to an embodiment of the present invention is described.

[0033] like Figure 1-Figure 5 As shown, the battery cover 10 according to the embodiment of the utility model includes: a cover body 1.

[0034] Specifically, refer to Figure 2-Figure 5 The cover body 1 has an explosion-proof hole 14, in which a first reinforcing rib 11 is provided. The first reinforcing rib 11 extends along the length direction of the explosion-proof hole 14, and both ends of the first reinforcing rib 11 in the length direction are connected to the inner circumferential wall of the explosion-proof hole 14. It should be noted that the width of the explosion-proof hole 14 refers to the maximum width of the explosion-proof hole 14 along the width direction of the cover body 1, and the cross-sectional profile of the explosion-proof hole 14 can be a runway shape, an ellipse, a rectangle, etc.

[0035] It can be understood that the explosion-proof hole 14 extends along the thickness direction of the cover body 1, and one end of the explosion-proof hole 14 along the thickness direction of the cover body 1 is connected to the pole group, and the other end is connected to the explosion-proof valve 2, so that the uncontrolled gas can flow from the explosion-proof hole 14 to the explosion-proof valve 2 and be discharged from the explosion-proof valve 2, thereby ensuring the safety of the battery. By arranging the first reinforcing rib 11 in the explosion-proof hole 14, the first reinforcing rib 11 can prevent the explosion-proof valve 2 from falling into the explosion-proof hole 14, reduce the collapse of the explosion-proof valve 2, improve the reliability of the explosion-proof valve 2, and improve the safety of the battery.

[0036] Furthermore, if Figure 4 and Figure 5 As shown, the width of the first reinforcing rib 11 is H1, and H1 is 0.5 mm-3 mm, such as 0.5 mm, 1 mm, 2 mm or 3 mm.

[0037] Therefore, by setting the width of the first reinforcing rib 11 to be 0.5 mm-3 mm, on the one hand, the first reinforcing rib 11 has a sufficient width, which ensures the structural strength of the first reinforcing rib 11, and makes the first reinforcing rib 11 reliable in blocking the explosion-proof valve 2 from falling, thereby further improving the reliability of the explosion-proof valve 2 and ensuring the safety of the battery. On the other hand, it also avoids the first reinforcing rib 11 being too wide to block the discharge of uncontrolled gas, thereby ensuring the smooth discharge of gas and the exhaust efficiency, thereby further improving the safety of the battery.

[0038] According to the battery cover 10 of the embodiment of the utility model, a first reinforcing rib 11 is provided in the explosion-proof hole 14, and the first reinforcing rib 11 extends along the length direction of the explosion-proof hole 14. Both ends of the first reinforcing rib 11 in the length direction are connected to the inner peripheral wall of the explosion-proof hole 14, and the width of the first reinforcing rib 11 is H1, and H1 is 0.5mm-3mm. The first reinforcing rib 11 can prevent the explosion-proof valve 2 from falling into the explosion-proof hole 14, reduce the collapse of the explosion-proof valve 2, improve the reliability of the explosion-proof valve 2, and improve the safety of the battery. At the same time, the first reinforcing rib 11 is also made to have a suitable width. On the one hand, the first reinforcing rib 11 can reliably prevent the explosion-proof valve 2 from falling. On the other hand, it also avoids the first reinforcing rib 11 from being too wide to block the discharge of uncontrolled gas, thereby ensuring the smooth discharge of gas and the exhaust efficiency, thereby improving the safety of the battery.

[0039] In some embodiments of the present invention, Figure 2-Figure 5 As shown, the explosion-proof hole 14 is further provided with a second reinforcing rib 12, which extends along the width direction of the explosion-proof hole 14, and both ends of the second reinforcing rib 12 in the length direction are connected to the inner peripheral wall of the explosion-proof hole 14, and the first reinforcing rib 11 and the second reinforcing rib 12 are arranged crosswise. Figure 2-Figure 5In the example shown, the first reinforcing rib 11 and the second reinforcing rib 12 are perpendicular to each other and cross-arranged, but the present invention is not limited thereto, and the angle between the first reinforcing rib 11 and the second reinforcing rib 12 may also be an obtuse angle or an acute angle.

[0040] It is understandable that the first reinforcing rib 11 and the second reinforcing rib 12 are arranged crosswise so that the first reinforcing rib 11 and the second reinforcing rib 12 can jointly prevent the explosion-proof valve 2 from falling into the explosion-proof hole 14. Thus, the reliability of the explosion-proof valve 2 is further improved, and the safety of the battery is improved.

[0041] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the width of the second reinforcing rib 12 is H2, and H2 is 0.5 mm-3 mm, such as 0.5 mm, 1 mm, 2 mm or 3 mm.

[0042] It is understandable that the width of the second reinforcing rib 12 is 0.5mm-3mm, so that the second reinforcing rib 12 has a suitable width. On the one hand, the second reinforcing rib 12 has a sufficient width, which ensures the structural strength of the second reinforcing rib 12, and makes the second reinforcing rib 12 reliable in blocking the fall of the explosion-proof valve 2, thereby further improving the reliability of the explosion-proof valve 2 and ensuring the safety of the battery. On the other hand, it also avoids the excessive width of the second reinforcing rib 12 blocking the discharge of uncontrolled gas, thereby ensuring the smooth discharge of gas and the exhaust efficiency, thereby further improving the safety of the battery.

[0043] In some embodiments of the present invention, Figure 2-Figure 5 As shown, there are multiple second reinforcing ribs 12 spaced apart in the length direction of the explosion-proof hole 14, and each second reinforcing rib 12 is arranged crosswise with the first reinforcing rib 11. Thus, the first reinforcing rib 11 and the multiple second reinforcing ribs 12 are arranged crosswise, so that the first reinforcing rib 11 and the multiple second reinforcing ribs 12 can jointly prevent the explosion-proof valve 2 from falling into the explosion-proof hole 14. This further improves the reliability of the explosion-proof valve 2 and the safety of the battery.

[0044] For example, Figure 2-Figure 5 In the example shown, there are two second reinforcing ribs 12 , but the present invention is not limited thereto, and there may be more second reinforcing ribs 12 , such as 3, 4, 5 or 6.

[0045] In some embodiments of the present invention, the distance between two adjacent second reinforcing ribs 12 is L1, the length of the explosion-proof hole 14 is L2, 2 / 3≥L1 / L2≥1 / 3, for example, L1 / L2 is 1 / 3, 4 / 9, 5 / 9 or 2 / 3, etc.

[0046] It can be understood that by 2 / 3≥L1 / L2≥1 / 3, the spacing between two adjacent second reinforcing ribs 12 is appropriate. On the one hand, it can prevent the two adjacent reinforcing ribs from being too close (if the two adjacent reinforcing ribs are too close, the efficiency of gas exhaust from here will be reduced), which will cause the gas to be too concentrated in a certain place during exhaust. Therefore, the spacing between the two adjacent second reinforcing ribs 12 is appropriate, so that the exhaust is uniform, further improving the safety of the battery. On the other hand, it can prevent the two adjacent second reinforcing ribs 12 from being too far apart, so as to prevent the explosion-proof valve 2 from falling from the gap between the two adjacent second reinforcing ribs 12, further improving the reliability of the explosion-proof valve 2.

[0047] In some embodiments of the utility model, a third reinforcing rib (not shown in the figure) is provided in the explosion-proof hole 14, the third reinforcing rib is annular, the third reinforcing rib is spaced apart from the inner peripheral wall of the explosion-proof hole 14, and the third reinforcing rib is arranged crosswise with the first reinforcing rib 11 and / or the second reinforcing rib 12. For example, the third reinforcing rib is arranged crosswise with the first reinforcing rib 11, or the third reinforcing rib is arranged crosswise with the second reinforcing rib 12, or the third reinforcing rib is arranged crosswise with both the first reinforcing rib 11 and the second reinforcing rib 12.

[0048] It can be understood that, by cross-arranging the third reinforcing ribs with the first reinforcing ribs 11 and / or the second reinforcing ribs 12, the third reinforcing ribs with the first reinforcing ribs 11 and / or the second reinforcing ribs 12 can jointly prevent the explosion-proof valve 2 from falling into the explosion-proof hole 14. Thus, the reliability of the explosion-proof valve 2 is further improved, and the safety of the battery is improved.

[0049] In addition, an explosion-proof notch is provided on the explosion-proof valve 2, and the gap between the third reinforcing rib and the inner wall of the explosion-proof hole 14 is arranged relative to the explosion-proof notch in the thickness direction of the cover body 1, so that the gas can be directly discharged to the explosion-proof notch through the gap between the third reinforcing rib and the inner wall of the explosion-proof hole 14, and break through the explosion-proof notch to be discharged, thereby facilitating the breakthrough of the explosion-proof valve, making the exhaust smoother and improving the battery safety.

[0050] In some embodiments of the utility model, along the thickness direction of the cover body 1, the thickness of the first reinforcing rib 11, the second reinforcing rib 12 and the third reinforcing rib are the same, and in the thickness direction of the cover body 1, the first reinforcing rib 11, the second reinforcing rib 12 and the third reinforcing rib are arranged flush, thereby facilitating the production and manufacturing of the first reinforcing rib 11, the second reinforcing rib 12 and the third reinforcing rib.

[0051] In some embodiments of the present invention, Figure 1-Figure 3 As shown, one side of the cover body 1 in the thickness direction has a mounting groove 13, and the explosion-proof hole 14 is arranged on the bottom wall of the mounting groove 13. The battery cover 10 also includes: an explosion-proof valve 2 and a protective patch 3. The explosion-proof valve 2 is arranged in the mounting groove 13 and connected to the cover body 1.

[0052] It is understandable that the explosion-proof valve 2 can be connected to the cover body 1 by welding, thereby improving the connection reliability of the explosion-proof valve 2 and the cover body 1, and also improving the sealing between the explosion-proof valve 2 and the cover body 1, and preventing gas from flowing out from the gap between the explosion-proof valve 2 and the cover body 1. At the same time, the explosion-proof valve 2 is arranged in the installation groove 13, and the size of the cross-sectional profile of the explosion-proof valve 2 is similar to the size of the cross-sectional profile of the installation groove 13, so that the bottom wall of the installation groove 13 can also prevent the explosion-proof valve 2 from falling into the explosion-proof hole 14, thereby further improving the reliability of the explosion-proof valve 2.

[0053] Furthermore, if Figure 1-Figure 3 As shown, the protective patch 3 is arranged on the side of the explosion-proof valve 2 away from the explosion-proof hole 14 and is connected to the cover body 1 (connected by bonding or other methods). The protective patch 3 can protect the explosion-proof valve 2, further improving the reliability of the explosion-proof valve 2. The connection between the protective patch 3 and the cover body 1 can improve the connection stability of the protective patch 3.

[0054] In addition, the color of the protective patch 3 is different from the color of the cover body 1, so that the occurrence of missing the protective patch 3 can be reduced.

[0055] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the first reinforcing rib 11 is spaced apart from the bottom wall of the mounting groove 13 in the thickness direction of the cover body 1, and the spacing between the first reinforcing rib 11 and the bottom wall of the mounting groove 13 is H3, H3 ≥ 0.5 mm, for example, H3 is 0.5 mm, 0.6 mm, 0.7 mm or 0.8 mm, etc. It should be noted that a reasonable spacing is formed between the first reinforcing rib 11 and the bottom wall of the mounting groove 13, which can avoid installation interference between the first reinforcing rib 11 and the explosion-proof valve 2.

[0056] In some embodiments of the present invention, there are multiple first reinforcing ribs 11, and the multiple first reinforcing ribs 11 are spaced apart in the width direction of the explosion-proof hole 14; thus, through the arrangement of the multiple first reinforcing ribs 11, the multiple first reinforcing ribs 11 can jointly prevent the explosion-proof valve 2 from falling into the explosion-proof hole 14. Thus, the reliability of the explosion-proof valve 2 is further improved, and the safety of the battery is improved.

[0057] or, as Figure 2-Figure 5 As shown, there is one first reinforcing rib 11. It can be understood that there is one first reinforcing rib 11, which can reduce the obstruction of runaway gas, thereby ensuring the efficiency of gas discharge and improving battery safety.

[0058] A battery according to an embodiment of the present invention is described below.

[0059] The battery according to the embodiment of the utility model includes the battery cover 10 mentioned above.

[0060] According to the battery of the embodiment of the utility model, by setting the above-mentioned battery cover 10, a first reinforcing rib 11 is provided in the explosion-proof hole 14, the first reinforcing rib 11 extends along the length direction of the explosion-proof hole 14, and the two ends of the first reinforcing rib 11 in the length direction are connected to the inner peripheral wall of the explosion-proof hole 14, and the width of the first reinforcing rib 11 is H1, and H1 is 0.5mm-3mm. The first reinforcing rib 11 can prevent the explosion-proof valve 2 from falling into the explosion-proof hole 14, reduce the collapse of the explosion-proof valve 2, improve the reliability of the explosion-proof valve 2, and improve the safety of the battery. At the same time, the first reinforcing rib 11 is also made to have a suitable width. On the one hand, the first reinforcing rib 11 can reliably prevent the explosion-proof valve 2 from falling. On the other hand, it also avoids the first reinforcing rib 11 from being too wide to block the discharge of uncontrolled gas, thereby ensuring the smooth discharge of gas and the exhaust efficiency, thereby improving the safety of the battery.

[0061] 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.

[0062] 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 battery cover, characterized in that: include: The cover body has an explosion-proof hole, a first reinforcing rib is arranged in the explosion-proof hole, the first reinforcing rib extends along the length direction of the explosion-proof hole, both ends of the first reinforcing rib in the length direction are connected to the inner wall of the explosion-proof hole, the width of the first reinforcing rib is H1, and H1 is 0.5mm-3mm.

2. The battery cover according to claim 1, characterized in that: The explosion-proof hole is also provided with a second reinforcing rib, which extends along the width direction of the explosion-proof hole, and both ends of the second reinforcing rib in the length direction are connected to the inner peripheral wall of the explosion-proof hole, and the first reinforcing rib and the second reinforcing rib are cross-arranged.

3. The battery cover according to claim 2, characterized in that: The width of the second reinforcing rib is H2, and H2 is 0.5 mm-3 mm.

4. The battery cover according to claim 2, characterized in that: There are a plurality of second reinforcing ribs which are spaced apart in the length direction of the explosion-proof hole, and each of the second reinforcing ribs is arranged to cross the first reinforcing rib.

5. The battery cover according to claim 4, characterized in that: The distance between two adjacent second reinforcing ribs is L1, the length of the explosion-proof hole is L2, and 2 / 3≥L1 / L2≥1 / 3.

6. The battery cover according to claim 2, characterized in that: A third reinforcing rib is arranged in the explosion-proof hole. The third reinforcing rib is annular and is spaced apart from the inner peripheral wall of the explosion-proof hole. The third reinforcing rib is arranged crosswise with the first reinforcing rib and / or the second reinforcing rib.

7. The battery cover according to claim 1, characterized in that: The cover plate body has a mounting groove on one side in the thickness direction, the explosion-proof hole is arranged on the bottom wall of the mounting groove, and the battery cover plate further includes: An explosion-proof valve, which is disposed in the mounting groove and connected to the cover plate body; A protective patch is arranged on a side of the explosion-proof valve away from the explosion-proof hole and is connected to the cover plate body.

8. The battery cover according to claim 7, characterized in that: The first reinforcing rib is spaced apart from the bottom wall of the mounting groove in the thickness direction of the cover plate body, and the distance between the first reinforcing rib and the bottom wall of the mounting groove is H3, where H3≥0.5 mm.

9. The battery cover according to claim 1, characterized in that: There are a plurality of first reinforcing ribs, and the plurality of first reinforcing ribs are spaced apart in the width direction of the explosion-proof hole; Or, the number of the first reinforcing rib is one.

10. A battery, characterized in that: Comprising a battery cover according to any one of claims 1-9.

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