Battery and electric equipment

Abstract

The utility model belongs to the technical field of power batteries, and discloses a battery and electric equipment, the battery comprises a shell and an insulating film, the insulating film comprises a film body and a leveling piece arranged on the film body, the film body wraps the outer surface of the shell, the leveling piece is arranged on one side, facing the shell, of the film body, and the leveling piece is arranged on the other side, facing the shell, of the film body. And the leveling piece is arranged on the shell, is in contact with the edge between the side wall and the bottom wall of the shell and is used for supporting the membrane body. According to the utility model, the film body can be prevented from generating wrinkles when being wrapped on the shell, so that the film coating quality and yield are improved, the appearance of the coated battery is ensured, the risk of reworking is reduced, and the film coating efficiency and yield can also be improved.

Description

Technical Field

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

[0002] Secondary batteries, also known as rechargeable batteries or storage batteries, are batteries that can be recharged after discharge to reactivate the active materials and continue to be used. Secondary batteries require an insulating film wrapped around their outer casing to provide insulation protection.

[0003] In existing technology, the common wrapping method is to wrap from the bottom of the shell toward the top. During the wrapping process, the flatness of the shell bottom contour cannot be fully guaranteed. As a result, when wrapping the insulating film around the shell, the uneven shell contour often causes the insulating film to be subjected to localized stresses of varying magnitudes. This can eventually cause wrinkles, affecting the appearance of the secondary battery. If wrinkles occur, the wrapped insulating film must be removed and the aluminum shell re-polished, or the rollers of the wrapping equipment must be adjusted and the film applied repeatedly, resulting in low film application efficiency.

[0004] Therefore, a battery is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a battery and an electrical device to solve the problems of low film sticking efficiency and easy wrinkling in the prior art.

[0006] As conceived above, the technical solution adopted by the utility model is:

[0007] A battery includes a shell and an insulating film, wherein the insulating film includes a membrane body and a leveling member arranged on the membrane body, the membrane body is covered on the outer surface of the shell, the leveling member is arranged on the side of the membrane body facing the shell and contacts the edge between the side wall and the bottom wall of the shell, and the leveling member is used to support the membrane body.

[0008] Preferably, the membrane body has a preset portion arranged opposite to the end of the edge and the remaining portion except the preset portion, and the preset portion is provided with the leveling member, which is used to support the preset portion so that the preset portion is not lower than the remaining portion.

[0009] Preferably, a surface of the membrane body facing away from the leveling member is provided with a recess at a position corresponding to the leveling member.

[0010] Preferably, the leveling member covers the entire edge, and the thickness of the two ends of the leveling member is greater than the thickness of the middle portion.

[0011] Preferably, the leveling member covers the entire edge, and the leveling member is an elastic structure with constant thickness.

[0012] Preferably, the leveling member is integrally provided with the membrane body.

[0013] Preferably, the membrane body includes a substrate layer and an adhesive layer provided on the substrate layer, the substrate layer has a protrusion extending toward the shell, and the protrusion forms the leveling member.

[0014] Preferably, the membrane body includes a substrate layer, a glue layer is provided on a side of the substrate layer facing the shell, and the leveling member is provided between the substrate layer and the glue layer.

[0015] Preferably, the membrane body includes a substrate layer, a glue layer is provided on the side of the substrate layer facing the shell, the glue layer is provided with a through hole, one end of the leveling member is arranged in the through hole and connected to the substrate layer, and the other end of the leveling member extends outside the through hole.

[0016] Electrical equipment, including batteries as described above

[0017] Beneficial effects of the utility model:

[0018] The battery and electrical equipment provided by the utility model are provided with a leveling piece between the membrane body and the outer surface of the shell, and the leveling piece is in contact with the edge between the side wall and the bottom wall of the shell, so that the leveling piece can support the membrane body near the edge, and then the membrane body can contact the leveling piece at the same time as it contacts the raised area of the edge at the bottom of the shell or before it contacts the raised area of the edge, so that the leveling piece can support the membrane body, avoiding the redundant contraction of the raised area of the edge at the bottom of the shell when the membrane body is wrapped on the shell and the generation of wrinkles on the side wall of the shell, thereby improving the quality and yield of the film coating, ensuring the appearance of the battery after coating, reducing the risk of rework, and improving the efficiency and quality rate of the film coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the shell and insulating film provided by the present invention when not coated;

[0020] Figure 2 This is a front view of the housing provided by the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a leveling member provided by the utility model Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the structure of a leveling member provided by the utility model Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the relative positions of the housing and the insulating film provided by the utility model. Figure 1 ;

[0024] Figure 6 This is a cross-sectional view of the leveling member provided by the utility model. Figure 1 ;

[0025] Figure 7 This is a cross-sectional view of the leveling member provided by the utility model. Figure 2 ;

[0026] Figure 8 This is a cross-sectional view of the leveling member provided by the utility model. Figure 3 ;

[0027] Figure 9 This is a schematic diagram of the relative positions of the housing and the insulating film provided by the utility model. Figure 2 ;

[0028] Figure 10 This is a schematic diagram of the leveling member provided by the present invention in contact with the housing;

[0029] Figure 11 This is a structural diagram of another leveling member provided by the present invention;

[0030] Figure 12 This is a structural schematic diagram of a shell provided by the utility model;

[0031] Figure 13 This is a structural schematic diagram of another shell provided by the utility model.

[0032] In the picture:

[0033] 100, insulating film; 110, film body; 111, base material layer; 112, adhesive layer; 120, leveling member; 121, main body; 122, thickened portion; 123, first curved surface; 124, second flat surface; 125, second curved surface;

[0034] 200, housing; 210, recess; 220, edge; 221, raised area. DETAILED DESCRIPTION

[0035] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of it.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0040] It should be noted that due to the manufacturing process and other reasons of the battery shell, the edge 220 between the side wall and the bottom wall (i.e. the edge 220 of the bottom of the shell) may not be a straight line, but may be uneven. Figure 5 As shown, the bottom edge 220 has a raised area 221. When wrapping, the insulating film first contacts the raised area 221. At this time, the raised area 221 will generate a large tightening force, causing the insulating film to shrink and then form wrinkles, affecting the wrapping quality.

[0041] First, as Figures 1 to 13As shown, this embodiment provides a battery with a good appearance and high film-mounting efficiency.

[0042] Example 1

[0043] The battery in this embodiment includes a housing 200 and an insulating film 100. The insulating film 100 includes a membrane body 110 and a leveling member 120 disposed on the membrane body 110. The membrane body 110 is wrapped around the outer surface of the housing 200. The leveling member 120 is located on the side of the membrane body 110 facing the housing 200 and contacts the edge 220 between the sidewall and bottom wall of the housing 200. The leveling member 120 supports the membrane body 110 to prevent wrinkles, improve the film coating quality, maintain the battery's appearance, reduce the risk of rework, and improve film application efficiency.

[0044] In the battery provided in this embodiment, a leveling member 120 is provided between the membrane body 110 and the outer surface of the shell 200, and the leveling member 120 contacts the edge 220 between the side wall and the bottom wall of the shell 200, so that the leveling member 120 can support the membrane body 110 near the edge 220, and further enables the membrane body 110 to contact the leveling member 120 while contacting the raised area 221 of the edge 220 at the bottom of the shell 200 or before contacting the raised area 221 of the edge 220, so that the leveling member 120 can support the membrane body 110, avoiding the redundant folding of the raised area 221 of the edge 220 at the bottom of the shell 200 when the membrane body 110 is wrapped on the shell 200, thereby improving the quality and yield of the coating, ensuring the appearance of the battery after coating, reducing the risk of rework, and improving the efficiency and quality rate of the coating.

[0045] Optionally, the membrane body 110 in this embodiment includes a predetermined portion positioned opposite the end of the edge 220 and a remaining portion other than the predetermined portion. The predetermined portion is provided with a leveling member 120, allowing the leveling member 120 to initially contact the end of the edge 220. The end of the edge 220 can generate a greater tightening force, promoting the contraction of the membrane body 110 at this location. Contraction to a certain degree can create redundancy, which can be eliminated by cutting or folding at the end of the edge 220 to prevent wrinkles. Furthermore, during film wrapping, the predetermined portion is not lower than the remaining portion, thereby reducing the likelihood of wrinkles in the remaining portion and allowing the predetermined portion to be relatively flush with the remaining portion, ensuring the flatness of the membrane body 110.

[0046] Moreover, in this embodiment, by arranging the leveling member 120 in the preset part, the preset part can contact the leveling member 120 while the remaining part contacts the lowest point of the raised area 221 of the edge 220 at the bottom of the shell 200, so that the time when the preset part contacts the leveling member 120 is no later than the time when the remaining part contacts the raised area 221 of the edge 220 at the bottom of the shell 200, so that the tightening force generated at the end of the edge 220 is no less than the tightening force generated by the raised area 221 of the edge 220, thereby reducing the risk of wrinkles in the membrane body 110.

[0047] Optionally, the shell 200 is square, and four preset parts are adapted to the shape of the shell 200. The four preset parts correspond one-to-one to the four corners of the bottom wall of the shell 200, and the leveling piece 120 provided in each preset part contacts the four corners.

[0048] In this embodiment, the thickness of the leveling member 120 satisfies the following requirements: after coating, the outer surface of the insulating film 100 is relatively flat or level, so as to ensure the appearance of the battery.

[0049] In some optional embodiments, such as Figure 3 and Figure 4 As shown, this embodiment provides a leveling member 120, which includes a first plane (not shown), a first curved surface 123, a second plane 124, and a second curved surface 125 connected end to end. One end of the first plane, one end of the first curved surface 123, one end of the second plane 124, and one end of the second curved surface 125 are connected to a first end surface (not shown), and the other ends of the first plane, the other end of the first curved surface 123, the other end of the second plane 124, and the other end of the second curved surface 125 are connected to a second end surface (not shown). The first plane, the first curved surface 123, the second plane 124, the second curved surface 125, the first end surface, and the second end surface cooperate to form a closed leveling member 120. The first curved surface 123 and the second curved surface 125 are both curved toward the housing 200. The middle portion of the leveling member 120 is thick and is used to support the membrane body 110. The leveling member 120 has thin sides, and the first plane can be flush with the bottom wall of the housing 200 , and the second plane 124 can be flush with the side wall of the housing 200 , so that after the leveling member 120 is installed, the outer surface of the insulating film 100 is relatively flat or flush.

[0050] Of course, it is understandable that the leveling member 120 can also be a structure of uniform thickness, which is not limited in this embodiment. When the leveling member 120 is a structure of uniform thickness, it is convenient to manufacture the leveling member 120 and assemble it with the membrane body 110 .

[0051] Exemplarily, a depression (not shown in the figure) is provided on the surface of the membrane body 110 facing away from the leveling member 120 at a position corresponding to the leveling member 120, so that the surface of the membrane body 110 facing away from the leveling member 120 is relatively flat, and a bulge will not be formed due to the setting of the leveling member 120. As a result, the overall size of the battery will not increase too much due to the setting of the insulating film 100, which is beneficial to the optimization of the battery size, and also makes the exterior of the insulating film 100 more uniform and has a neat appearance.

[0052] In some optional embodiments, the leveling member 120 may be an elastic or plastic structure, which is not limited in this embodiment. When the leveling member 120 is an elastic structure, the thickness of the leveling member 120 can be varied to adapt to the appearance of the housing 200, allowing a batch of insulating films 100 to be used with housings 200 having different appearances, thereby providing greater flexibility and a wider range of applications. When the leveling member 120 is an elastic structure, its material may be rubber, silicone, etc., which is not limited in this embodiment.

[0053] Optionally, the leveling member 120 is integrally provided with the membrane body 110 to improve the integrity of the leveling member 120 and the membrane body 110. This eliminates the need to reassemble the leveling member 120 and the membrane body 110 during film wrapping, thereby reducing the difficulty of film wrapping and thereby improving film wrapping efficiency. It is understood that the leveling member 120 and the membrane body 110 may also be separate components, and this embodiment is not limited thereto.

[0054] Illustratively, the insulating film 100 may have various specific structures. This embodiment illustratively provides insulating films 100 having the following structures.

[0055] In the structure of the first insulating film 100, the film body 110 includes a substrate layer 111 and an adhesive layer 112 provided on the substrate layer 111. The substrate layer 111 is bonded to the shell 200 by the adhesive layer 112 to achieve film encapsulation. The substrate layer 111 has a protrusion extending toward the shell 200, and the protrusion forms a leveling member 120. Specifically, the corresponding position of the substrate layer 111 protrudes toward one side of the shell 200 and forms the leveling member 120, which can improve the structural strength of the leveling member 120 and the substrate layer 111 and reduce the probability of separation of the leveling member 120 from the substrate layer 111. The side of the leveling member 120 facing the shell 200 may be provided with glue or not, and this embodiment does not limit this.

[0056] In the structure of the second insulating film 100, as Figure 7As shown, the membrane body 110 includes a substrate layer 111 and an adhesive layer 112 disposed on substrate layer 111. Substrate layer 111 is bonded to housing 200 via adhesive layer 112, achieving membrane encapsulation. Leveling member 120 is a separate component and is disposed on the side of adhesive layer 112 facing away from substrate layer 111. Leveling member 120 is bonded to substrate layer 111 via adhesive layer 112, achieving connection with substrate layer 111.

[0057] In the third insulating film 100 structure, the film body 110 includes a substrate layer 111. An adhesive layer 112 is provided on the side of the substrate layer 111 facing the housing 200. A leveling member 120 is disposed between the substrate layer 111 and the adhesive layer 112, allowing both the substrate layer 111 and the leveling member 120 to be bonded to the housing 200 via the adhesive layer 112. The adhesive layer 112 also positions the leveling member 120 on the substrate layer 111, securing the position of the leveling member 120. The leveling member 120 is disposed between the adhesive layer 112 and the substrate layer 111, with the portion of the adhesive layer 112 facing the leveling member 120 in contact with the housing 200. This allows the leveling member 120 to support the substrate layer 111, keeping the substrate layer 111 relatively flat.

[0058] In the fourth structure of the insulating film 100, as Figure 8 As shown, the membrane body 110 includes a substrate layer 111, and a glue layer 112 is provided on the side of the substrate layer 111 facing the shell 200. The glue layer 112 is provided with a through hole. One end of the leveling member 120 is provided in the through hole and connected to the substrate layer 111, and the other end of the leveling member 120 extends outside the through hole and contacts the shell 200. That is, the glue layer 112 is not provided at the position of the substrate layer 111 for connecting the leveling member 120.

[0059] The insulating film 100 with the above four structures can achieve the coating of the housing 200, and can avoid wrinkles, and can be relatively flat, thereby improving the aesthetics of the coated battery. Of course, the specific structure of the insulating film 100 includes but is not limited to the above four situations, and can also be adjusted according to actual needs. This embodiment does not limit this.

[0060] In this embodiment, a leveling piece 120 is provided on the membrane body 110. The position of the leveling piece 120 corresponds to the end of the bottom edge 220 of the shell 200. After the leveling piece 120 is fitted, the corner formed by the end of the bottom edge 220 of the shell 200 can be made more flush, so that the membrane body 110 is evenly stressed and the formation of wrinkles can be avoided.

[0061] Example 2

[0062] The difference between this embodiment and the first embodiment is that the position of the leveling member 120 relative to the housing 200 is different.

[0063] Specifically, if Figures 9 to 11As shown, the leveling member 120 covers the entire edge 220, and the thickness of the two ends of the leveling member 120 is greater than the thickness of the middle portion. Figure 11 As shown, the leveling member 120 includes a main body 121 and thickened portions 122 located at both ends of the main body 121 . The thickness of the main body 121 is smaller than that of the thickened portions 122 . The thickened portions 122 are used to contact the ends of the edge 220 .

[0064] The leveling member 120 in this embodiment is a strip-shaped member extending along the edge 220 of the housing 200. The leveling member 120 is thin in the middle and thick at both ends, which is suitable for situations where the middle portion of the edge 220 at the bottom of the housing 200 bulges outward. This ensures that the points at the ends of the leveling member 120 facing away from the edge 220 and the point in the middle of the leveling member 120 facing away from the edge 220 are on the same horizontal plane, thereby ensuring that the supported membrane body 110 is relatively flat and wrinkle-free.

[0065] In some optional embodiments, each edge 220 of the bottom of the housing 200 contacts the leveling member 120 , so that the leveling member 120 supports the entire membrane body 110 , further improving the flatness of the membrane body 110 .

[0066] In this embodiment, the length of the leveling member 120 is less than or equal to the corresponding length of the shell 200 to ensure that there is no redundant leveling member 120 during the film wrapping process.

[0067] The other structures in this embodiment are similar to the corresponding structures in the first embodiment and have similar beneficial effects, and will not be described in detail here.

[0068] Example 3

[0069] The difference between this embodiment and the first embodiment is that the position of the leveling member 120 relative to the housing 200 is different.

[0070] Specifically, the leveling member 120 in this embodiment covers the entire edge 220, that is, the leveling member 120 in this embodiment is a strip-shaped member and extends along the edge 220 of the housing 200. The leveling member 120 is an elastic structure with uniform thickness, that is, the leveling member 120 has a uniform thickness and is an elastic structure.

[0071] By setting the leveling piece 120 as an elastic structure, the leveling piece 120 can be deformed after being subjected to force, and the compression amount of each position of the leveling piece 120 is different according to the shape of the bottom edge 220 of the shell 200. For example, when the bottom edge 220 of the shell 200 has a protruding area 221, the compression amount of the part of the leveling piece 120 corresponding to the protruding area 221 is large, and the compression amount of other parts is small. Finally, the chamfered shape of the bottom edge 220 of the shell 200 can be made flush, making the membrane body 110 smoother, and thus making the insulating film 100 evenly stressed, which can avoid the formation of wrinkles.

[0072] When the leveling member 120 is an elastic structure, its material may be rubber, silicone, etc., which is not limited in this embodiment.

[0073] It should be noted that the edge 220 at the bottom of the housing 200 may also have a recessed area 210. The recessed area 210 may be formed indirectly by a portion of the edge 220 protruding outward, or may be formed by a portion of the edge 220 being recessed toward the interior of the housing 200. Figure 12 As shown, the recessed area 210 is located in the middle of the bottom of the housing 200 and is recessed toward the interior of the housing 200. Figure 13 As shown, a bottom edge 220 has two recessed areas 210, which are spaced apart and are both recessed inside the housing 200. The leveling member 120 provided in this embodiment is a flexible structure that can fill recessed areas 210 at different locations, thus having high versatility.

[0074] The function of the leveling member 120 in this embodiment is to fill the recessed area 210 to reconstruct a relatively flat support surface, through which the membrane body 110 is supported, thereby improving the supporting effect and preventing wrinkles.

[0075] The other structures in this embodiment are similar to the corresponding structures in the first embodiment and have similar beneficial effects, and will not be described in detail here.

[0076] In a second aspect, this embodiment further provides an electrical device, comprising the battery in the first aspect.

[0077] Among them, electrical equipment includes but is not limited to: mobile phones, portable devices, laptops, electric vehicles, electric vehicles, ships, spacecraft, electric toys and electric tools, etc. For example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys and electric airplane toys, etc. Electric tools include metal cutting power tools, grinding power tools, assembly power tools and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers. Electrical equipment includes, but is not limited to, mobile phones, portable devices, laptop computers, electric vehicles, electric cars, electric vehicles, ships, spacecraft, electric toys and electric tools, etc. For example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys and electric airplane toys, etc. Electric tools include metal cutting power tools, grinding power tools, assembly power tools and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers.

[0078] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are readily apparent to those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the appended claims.

Claims

1. A battery, characterized in that The invention comprises a shell (200) and an insulating film (100), wherein the insulating film (100) comprises a film body (110) and a leveling member (120) arranged on the film body (110), wherein the film body (110) is covered on the outer surface of the shell (200), and the leveling member (120) is arranged on the side of the film body (110) facing the shell (200) and contacts the edge (220) between the side wall and the bottom wall of the shell (200), and the leveling member (120) is used to support the film body (110).

2. The battery according to claim 1, characterized in that The membrane body (110) comprises a preset portion arranged opposite to the end of the edge (220) and the remaining portion except the preset portion, the preset portion is provided with the leveling member (120), and the leveling member (120) is used to support the preset portion so that the preset portion is not lower than the remaining portion.

3. The battery according to claim 2, characterized in that A surface of the membrane body (110) facing away from the leveling member (120) is provided with a recess at a position corresponding to the leveling member (120).

4. The battery according to claim 1, characterized in that The leveling member (120) is arranged to cover the entire edge (220), and the thickness of the two ends of the leveling member (120) is greater than the thickness of the middle portion.

5. The battery according to claim 1, characterized in that The leveling member (120) is arranged to cover the entire edge (220), and the leveling member (120) is an elastic structure with a constant thickness.

6. The battery according to any one of claims 1 to 5, characterized in that: The leveling member (120) is integrally provided with the membrane body (110).

7. The battery according to claim 6, characterized in that The membrane body (110) comprises a substrate layer (111) and an adhesive layer (112) arranged on the substrate layer (111); the substrate layer (111) has a protrusion extending toward the housing (200); the protrusion forms the leveling member (120).

8. The battery according to claim 6, characterized in that The membrane body (110) comprises a substrate layer (111), a glue layer (112) is provided on a side of the substrate layer (111) facing the housing (200), and the leveling member (120) is arranged between the substrate layer (111) and the glue layer (112).

9. The battery according to claim 6, characterized in that The membrane body (110) includes a substrate layer (111), a glue layer (112) is provided on a side of the substrate layer (111) facing the shell (200), the glue layer (112) is provided with a through hole, one end of the leveling member (120) is arranged in the through hole and connected to the substrate layer (111), and the other end of the leveling member (120) extends outside the through hole.

10. Electrical equipment, characterized in that: The invention comprises a battery according to any one of claims 1 to 9.

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