Battery cover plate and battery

Abstract

The utility model relates to power battery technical field provides a kind of battery cover plate and battery.Battery cover plate includes cover plate main body and pole, and cover plate main body is equipped with convex structure and liquid injection port, and convex structure is formed with the contact surface of the structural member contact of battery package;Pole is located in cover plate main body, and convex structure is between liquid injection port and pole.The battery cover plate and battery provided by the utility model solve the defects that the overall strength of battery package is lower in the prior art, which may affect the stability and safety of the battery when subjected to external impact or pressure.Meanwhile, the pole and the liquid injection port are respectively arranged on the two sides of the convex structure. During the electrolyte filling process of the battery, the overflowing electrolyte can be blocked by the convex structure, preventing the electrolyte from flowing to the installation area of the electrode and preventing the electrolyte from seeping into the pole, which can cause short circuit failure of the battery.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, and in particular to a battery cover and a battery. Background Technology

[0002] A power battery is a rechargeable battery used to power devices such as electric vehicles, primarily by storing and releasing electrical energy to drive an electric motor.

[0003] In existing technologies, the highest point of a battery (cell) is typically located on the terminal post of the cover plate. To ensure sufficient safety performance, batteries are generally protected from excessive external forces within the battery pack, a design that helps prevent damage to the internal structure. However, this design also results in lower overall strength of the battery pack, potentially affecting its stability and safety under external impacts or pressure. Utility Model Content

[0004] This utility model provides a battery cover and a battery to solve the defects in the prior art, namely, the low overall strength of the battery pack, which may affect its stability and safety when subjected to external impact or pressure.

[0005] This utility model provides a battery cover plate, including: a cover plate body and a terminal post. The cover plate body is provided with a protruding structure and a liquid injection port. The protruding structure forms a contact surface that contacts the structural components of the battery pack. The protruding structure is integrally formed with the cover plate body. The terminal post is disposed on the cover plate body, and the protruding structure is located between the liquid injection port and the terminal post.

[0006] According to the battery cover provided by this utility model, a first distance L1 is provided between the liquid injection port and the protruding structure along the length direction of the cover body.

[0007] According to the battery cover provided by this utility model, the first spacing L1 is 3mm≤L1≤10mm.

[0008] The battery cover provided by this utility model further includes: an insulating support pad and a terminal post. Along the thickness direction of the cover body, the insulating support pad is disposed on the outer wall of the cover body; the terminal post is disposed on the insulating support pad, and the terminal post is connected to the terminal post; along the width direction of the cover body, the width W1 of the protrusion structure is greater than or equal to the width W2 of the insulating support pad.

[0009] According to the battery cover provided by this utility model, along the length direction of the cover body, two protruding structures are spaced apart on the cover body, and the insulating support pad is located between the two protruding structures.

[0010] According to the battery cover provided by this utility model, along the length direction of the cover body, at least one side of the insulating support pad is provided with a second distance L2 between it and the corresponding protrusion structure.

[0011] According to the battery cover provided by this utility model, the second spacing L2 is 0.1mm≤L2≤1mm.

[0012] According to the battery cover provided by this utility model, along the thickness direction of the cover body, the height H of the protrusion structure is H≤1.5T, where T is the thickness of the cover body.

[0013] According to the battery cover provided by this utility model, the protruding structure is integrally formed with the cover body, and along the thickness direction of the cover body, the cover body has a receiving groove formed on the inner side corresponding to the protruding structure.

[0014] According to the battery cover provided by this utility model, along the length direction of the cover body, two protruding structures are spaced apart on the cover body, and the electrode post is located between the two protruding structures.

[0015] In another aspect, this utility model provides a battery, comprising: a battery cover, a housing, and an electrode assembly, wherein the battery cover is disposed in the housing, and the electrode assembly is disposed within the housing.

[0016] The battery cover and battery provided by this utility model, by setting a protruding structure on the main body of the cover, can contact the structural components of the battery pack (such as liquid cooling plates) to provide support and fixation for the battery, improve the stability of the battery within the battery pack, and enhance the overall structural strength of the battery pack. Furthermore, because the battery can bear weight, the clearance space between the battery and the structural components of the battery pack can be eliminated, and the overall height of the battery can be increased to improve its capacity. Simultaneously, by placing the terminals and electrolyte inlet on opposite sides of the protruding structure, the protruding structure can block overflowing electrolyte during the electrolyte filling process, preventing electrolyte from flowing into the electrode mounting area and preventing electrolyte seepage into the terminals, which could lead to battery short circuit failure.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is one of the schematic diagrams of the battery cover provided in this embodiment of the utility model.

[0020] Figure 2 This is the second schematic diagram of the battery cover provided in this embodiment of the utility model.

[0021] Figure 3 This is the third schematic diagram of the battery cover provided in this embodiment of the utility model.

[0022] Figure 4 This is the fourth schematic diagram of the battery cover provided in this embodiment of the utility model.

[0023] Figure 5 This is one of the schematic diagrams of the battery provided in this embodiment of the utility model.

[0024] Figure 6 This is a second schematic diagram of the battery provided in this embodiment of the present invention.

[0025] Figure label: 100. Battery cover; 110. Cover body; 111. Raised structure; 1111. Contact surface; 1112. Receiving groove; 112. Liquid filling port; 120. Terminal post; 130. Insulating support pad; 140. Terminal post terminal; 150. Connecting piece; 200. Housing; 300. Electrode assembly. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0029] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] The following is combined Figures 1 to 6 This invention describes the battery cover and battery provided by this utility model.

[0032] See Figures 1 to 4 As shown, the battery cover 100 provided in this embodiment of the present invention includes: a cover body 110 and a terminal post 120. The cover body 110 is provided with a protruding structure 111 and an injection port 112. The protruding structure 111 forms a contact surface 1111 that contacts the structural components of the battery pack. The terminal post 120 is disposed on the cover body 110, and the protruding structure 111 is located between the injection port 112 and the terminal post 120.

[0033] The battery cover 100 and battery provided by this utility model, by providing a protruding structure 111 on the cover body 110, can contact the structural components of the battery pack (such as liquid cooling plates) to provide support and fixation for the battery, improve the stability of the battery in the battery pack and improve the overall structural strength of the battery pack. Furthermore, since the battery can bear weight, the clearance space between the battery and the structural components of the battery pack can be eliminated, and the overall height of the battery can be increased to improve its capacity. Simultaneously, the terminals 120 and the electrolyte inlet 112 are respectively located on both sides of the protruding structure 111. During the process of adding electrolyte to the battery, the protruding structure 111 can block the overflowing electrolyte, preventing the electrolyte from flowing to the electrode mounting area (such as the terminal 140) and preventing electrolyte from seeping into the terminal 120, which could lead to battery short circuit failure.

[0034] Specifically, the battery cover 100 provided by this utility model includes a cover body 110 and terminal posts 120. The cover body 110 is the main component of the battery cover 100 and is typically made of a metal material such as a smooth aluminum plate. When applied to a battery, the cover body 110 is usually laser-welded to the port position of the housing 200. The cover body 110 also serves to mount and arrange components such as the terminal posts 120; for this purpose, terminal post holes and other supporting structures can be provided on the cover body 110. The terminal posts 120 are electrically connected to the tabs of the electrode assembly 300 via connecting pieces 150 to guide current from the positive and negative terminals of the battery into an external circuit, thereby realizing the energy output of the battery.

[0035] The cover plate is provided with a protruding structure 111. The protruding structure 111 can be an independent component and fixedly connected to the cover plate body 110 by welding or other means. Alternatively, the protruding structure 111 and the cover plate body 110 can be integrally set. During processing, the protruding structure 111 with a certain structural strength can be formed on the cover plate body 110 by stamping in one go, which is simple to process and manufacture.

[0036] It is understood that the number of protruding structures 111 on the cover body 110 is at least one, that is, it includes both single and multiple forms. The specific arrangement depends on the layout of components such as the terminal posts 120 on the cover body 110 and the required support contact area. For example, when the plane space occupied by components such as the terminal posts 120 on the cover body 110 is large, only a single protruding structure 111 can be set on the cover body 110 to meet the space layout requirements. Conversely, multiple protruding structures 111 can be set to distribute the force through multiple protruding structures 111, thereby optimizing the stress conditions when the battery cover 100 is applied to batteries and battery packs.

[0037] It should be noted that when the cover body 110 is provided with multiple protruding structures 111, the heights of the multiple protruding structures 111 (i.e., the distance between the contact surface 1111 and the cover body 110) can be the same or different, and no special limitation is made in this regard. For example, when the distances between the multiple protruding structures 111 and the structural components of the battery pack are the same, the heights of the multiple protruding structures 111 must be consistent to meet the condition that the contact surfaces 1111 of the multiple protruding structures 111 simultaneously contact the structural components of the battery pack. Correspondingly, in some specific embodiments, if the distances between different protruding structures 111 and the structural components of the battery pack are different, the heights of the multiple protruding structures 111 can also be set according to the distances between them and the structural components of the battery pack, and no special limitation is made in this regard.

[0038] Furthermore, when the cover plate body 110 is provided with multiple protruding structures 111, the outer contours of the different protruding structures 111 can be the same or different, and there is no special limitation on this. For example, the outer contours of some of the protruding structures 111 are square, and the outer contours of some of the protruding structures 111 are circular, etc.

[0039] As an example, in this embodiment, the cover plate body 110 is provided with two square-shaped protrusions 111. The two protrusions 111 have the same overall height and are spaced apart along the length of the cover plate body 110. In this way, the two protrusions 111 can simultaneously contact the structural components of the battery pack, while also leaving installation space for components such as the terminal post 120.

[0040] The electrode post 120 is disposed on the cover plate body 110, and the protruding structure 111 is located between the electrolyte inlet 112 and the electrode post 120. This means that at least one protruding structure 111 is provided on the cover plate body 110 in the area between the electrode post 120 and the electrolyte inlet 112. This protruding structure 111 prevents overflowing electrolyte when it is injected through the electrolyte inlet 112, thus preventing electrolyte from flowing to the electrode mounting area and preventing electrolyte from seeping into the electrode post 120 and causing a short circuit failure of the battery. It should be noted that when electrolyte is injected through the electrolyte inlet 112, due to the relatively large injection pressure and volume, electrolyte overflow may occur at the electrolyte inlet 112.

[0041] See Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, a first distance L1 is provided between the liquid injection port 112 and the protruding structure 111 along the length direction of the cover plate body 110.

[0042] Along the length of the cover plate body 110, by setting a first gap L1 between the liquid injection port 112 and the protruding structure 111, the stamping yield can be improved by using this gap, and defects such as cracks and fractures in the protruding structure 111 can be avoided during the stamping process.

[0043] See Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the first spacing L1 is 3mm≤L1≤10mm.

[0044] By setting the first spacing L1 to 3mm≤L1≤10mm, the spacing between the injection port 112 and the protruding structure 111 is kept within a reasonable range, which can both ensure the stamping yield and effectively block the electrolyte.

[0045] Specifically, when the first gap L1 is too small, it is difficult to form the protruding structure 111 and the liquid injection port 112 during the stamping process of the cover plate body 110, which can easily cause defects such as cracks and breaks on the side wall of the protruding structure 111; correspondingly, when the first gap L1 is too large, the protruding structure 111 has a weaker ability to block the electrolyte, which can easily cause the electrolyte to flow to the installation area of ​​the electrode post 120 during the liquid injection process.

[0046] As an example, the first spacing L1 can be 3mm, 5mm, 8mm or 10mm, etc.

[0047] See Figures 1 to 4 As shown, according to some embodiments of the present invention, along the length direction of the cover plate body 110, two protruding structures 111 are provided at intervals on the cover plate body 110, and the pole post 120 is located between the two protruding structures 111.

[0048] By providing two protruding structures 111 spaced apart along the length of the cover plate body 110, and placing the terminal post 120 between the two protruding structures, the two protruding structures 111 can simultaneously contact the structural components of the battery pack, distributing the load and thus optimizing the stress conditions when the battery cover plate 100 is applied to the battery and battery pack. This prevents excessive stress on a single protruding structure 111, which could lead to deformation or damage. Furthermore, the two protruding structures 111 can simultaneously protect the terminal post 120, preventing damage to it.

[0049] See Figures 1 to 4As shown, according to some embodiments of the present invention, the battery cover 100 further includes: an insulating support pad 130 and a terminal post 140. Along the thickness direction of the cover body 110, the insulating support pad 130 is disposed on the outer wall of the cover body 110; the terminal post 140 is disposed on the insulating support pad 130, and the terminal post 120 is connected to the terminal post 140; along the width direction of the cover body 110, the width W1 of the protrusion structure 111 is greater than or equal to the width W2 of the insulating support pad 130.

[0050] By setting the insulating support pad 130 and the terminal 140, the terminal 120 can be effectively installed and fixed, and the insulating support pad 130 can insulate the terminal 120 and the cover plate body 110, preventing short circuits. At the same time, by setting the width W1 of the protrusion structure 111 to be greater than or equal to the width W2 of the insulating support pad 130 along the width direction of the cover plate body 110, the blocking effect on the electrolyte can be further improved.

[0051] See Figure 1 , Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, along the length direction of the cover plate body 110, two protruding structures 111 are provided at intervals on the cover plate body 110, and the insulating support pad 130 is located between the two protruding structures 111.

[0052] Along the length of the cover plate body 110, two protruding structures 111 are spaced apart on the cover plate. These two protruding structures 111 can simultaneously contact the structural components of the battery pack, distributing the load and optimizing the stress conditions when the battery cover plate 100 is applied to the battery and battery pack. This prevents excessive stress on a single protruding structure 111, which could lead to deformation or damage. Simultaneously, an insulating support pad 130 is positioned between the two protruding structures 111. By controlling the distance between the insulating support pad 130 and the protruding structures 111, the two protruding structures 111 can provide initial positioning of the insulating support pad 130, improving assembly accuracy during the assembly of the battery cover plate 100 components.

[0053] See Figure 1 , Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, along the length direction of the cover plate body 110, at least one side of the insulating support pad 130 is provided with a second distance L2 between it and the corresponding protruding structure 111.

[0054] Along the length of the cover plate body 110, by providing a second gap L2 between at least one side of the insulating support pad 130 and the corresponding protruding structure 111, direct contact between at least one side of the insulating support pad 130 and the sidewall of the protruding structure 111 can be avoided. This effectively prevents or reduces the direct transfer of heat from the protruding structure 111 to the insulating support pad 130, thereby slowing down the aging of the insulating support pad 130. Furthermore, a heat dissipation channel can be created, improving the heat dissipation efficiency of the protruding structure 111.

[0055] It is understood that, along the length of the cover plate body 110, a second distance L2 may be provided between one of the two sides of the insulating support pad 130 and the corresponding protrusion structure 111, or a second distance L2 may be provided between both sides of the insulating support pad 130 and the corresponding protrusion structure 111.

[0056] See Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the second spacing L2 is 0.1mm≤L2≤1mm.

[0057] By setting the second spacing L2 to 0.1mm≤L2≤1mm, it is possible to avoid direct contact between the two sides of the insulating support pad 130 and the sidewalls of the corresponding protrusion structure 111, and also to prevent the spacing from being too large, which would prevent the insulating support pad 130 from being limited and fixed by the two protrusion structures 111.

[0058] Specifically, when the second spacing L2 is too small (less than 0.1 mm), due to factors such as processing errors, the protruding structure 111 is prone to direct contact with the insulating support pad 130, causing the heat of the protruding structure 111 to be directly transferred to the insulating support pad 130, accelerating the aging of the insulating support pad 130; correspondingly, when the second spacing L2 is too large (greater than 1 mm), the two protruding structures 111 cannot limit and fix the insulating support pad 130, and cannot improve the assembly accuracy when assembling the battery cover 100 parts.

[0059] As an example, the second spacing L2 can be 0.1mm, 0.3mm, 0.5mm, 0.8mm or 1mm, etc.

[0060] See Figure 4 As shown, according to some embodiments of the present invention, along the thickness direction of the cover plate body 110, the height H of the protrusion structure 111 is H≤1.5T, where T is the thickness of the cover plate body 110.

[0061] By setting the height H of the protruding structure 111 to H≤1.5T along the thickness direction of the cover plate body 110, defects such as cracks and fractures in the area where the protruding structure 111 is located in the cover plate body 110 during the stamping process can be avoided.

[0062] Specifically, the thickness T of the cover body 110 is typically 1.5 mm to 3 mm. For example, when the thickness T of the cover body 110 is 1.5 mm, the height H of the protrusion 111 is H ≤ 2.25 mm, and when the thickness T of the cover body 110 is 3 mm, the height H of the protrusion 111 is H ≤ 4.5 mm.

[0063] See Figure 4 As shown, according to some embodiments of the present invention, the protruding structure 111 is integrally formed with the cover plate body 110, and along the thickness direction of the cover plate body 110, a receiving groove 1112 is formed on the inner side of the cover plate body 110 corresponding to the protruding structure 111.

[0064] By integrally integrating the protruding structure 111 with the cover plate body 110, the protruding structure 111 with a certain structural strength can be formed on the cover plate body 110 in a single stamping process, simplifying manufacturing. Simultaneously, along the thickness direction of the cover plate body 110, a receiving groove 1112 is formed on the inner side of the cover plate body 110 corresponding to the protruding structure 111. This groove 1112 can accommodate components or structures such as the connecting piece 150 and the electrode tabs of the electrode assembly 300, preventing them from occupying additional space and thus improving the battery's space utilization. Furthermore, it increases the internal storage space of the battery to accommodate more electrolyte. In short, by adapting to the structural characteristics of the protruding structure 111, the battery's spatial layout can be optimized, and space utilization can be improved.

[0065] The battery provided by this utility model is described below. The battery described below can be referred to in correspondence with the battery cover 100 described above.

[0066] See Figure 5 and Figure 6 As shown, the battery provided in this embodiment of the present invention includes: a battery cover plate 100, a housing 200, and an electrode assembly 300. The battery cover plate 100 is disposed in the housing 200, and the electrode assembly 300 is disposed inside the housing 200.

[0067] The battery provided by this utility model, due to the use of the battery cover plate 100 as described in any of the previous embodiments, can also use the protruding structure 111 to contact the structural components of the battery pack (such as liquid cooling plates) to provide support and fixation for the battery, improve the stability of the battery within the battery pack and enhance the overall structural strength of the battery pack. Furthermore, since the battery can bear weight, the clearance space between the battery and the structural components of the battery pack can be eliminated, and the overall height of the battery can be increased to improve the battery capacity. At the same time, with the terminal post 120 and the electrolyte inlet 112 respectively located on both sides of the protruding structure 111, during the process of adding electrolyte to the battery, the protruding structure 111 can be used to block the overflowing electrolyte, preventing the electrolyte from flowing to the electrode mounting area (such as the terminal post 140), and preventing the electrolyte from seeping into the terminal post 120 and causing the battery to short-circuit and fail.

[0068] It should be noted that the battery provided in this embodiment of the present invention can be Figure 5 and 6 The blade battery shown has ports at both ends of its casing 200 along its length, and battery covers 100 on each port. One battery cover 100 has a positive terminal, and the other battery cover 100 has a negative terminal. The battery provided in this embodiment can also be a prismatic battery, where the casing 200 has a port only at the top, and a battery cover 100 is provided at the port, with both the positive and negative terminals located on the cover 100. When the battery is a prismatic battery, the positive or negative terminal is located on the same side as the liquid filling port 112, and a protruding structure 111 is provided between the positive or negative terminal and the liquid filling port 112.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery cover, characterized in that, include: The cover plate body has a protruding structure and a liquid injection port, and the protruding structure forms a contact surface that contacts the structural components of the battery pack; An electrode post is disposed on the cover plate body, and the protruding structure is located between the injection port and the electrode post.

2. The battery cover according to claim 1, characterized in that, Along the length of the cover plate body, a first distance L1 is provided between the injection port and the protruding structure.

3. The battery cover according to claim 2, characterized in that, The first spacing L1 is 3mm ≤ L1 ≤ 10mm.

4. The battery cover according to claim 1, characterized in that, Also includes: An insulating support pad is disposed on the outer wall of the cover plate body along the thickness direction of the cover plate body; A pole terminal is provided on the insulating support pad, and the pole is connected to the pole terminal; Along the width direction of the cover plate body, the width W1 of the protrusion structure is greater than or equal to the width W2 of the insulating support pad.

5. The battery cover according to claim 4, characterized in that, Along the length of the cover plate body, two protruding structures are spaced apart on the cover plate body, and the insulating support pad is located between the two protruding structures.

6. The battery cover according to claim 5, characterized in that, Along the length of the cover plate body, at least one side of the insulating support pad is provided with a second distance L2 between it and the corresponding protrusion structure.

7. The battery cover according to claim 6, characterized in that, The second spacing L2 is 0.1mm≤L2≤1mm.

8. The battery cover according to any one of claims 1 to 7, characterized in that, Along the thickness direction of the cover plate body, the height H of the protrusion structure is H≤1.5T, where T is the thickness of the cover plate body.

9. The battery cover according to any one of claims 1 to 7, characterized in that, The protruding structure is integrally formed with the cover plate body, and along the thickness direction of the cover plate body, the cover plate body has a receiving groove formed on the inner side corresponding to the protruding structure; And / or, along the length of the cover plate body, two of the protruding structures are spaced apart on the cover plate body, and the pole is located between the two protruding structures.

10. A battery, characterized in that, include: The battery cover as described in any one of claims 1 to 9; The housing, wherein the battery cover is disposed on the housing; The electrode assembly is disposed within the housing.

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