Battery

Abstract

The utility model discloses a battery. The battery comprises a battery cell, a shell and gummed paper, an accommodating cavity is formed in the shell, the battery cell is mounted in the accommodating cavity to form a battery base body, the gummed paper at least partially covers the surface of the battery base body, and the battery cell is provided with two wide side surfaces which are oppositely arranged along a first direction and two narrow side surfaces which are oppositely arranged along a second direction; a preset area is arranged on the gummed paper, the preset area corresponds to the junction position of the battery cell and the shell, and a coating is arranged in the preset area. The gummed paper covers the surface of the battery base body to protect the battery base body, and meanwhile, marks such as trademarks and the like can be printed on the gummed paper. Furthermore, a preset area is arranged on the gummed paper, the preset area corresponds to the junction position of the battery cell and the shell, and a coating is arranged in the preset area, so that the coating is utilized to reinforce the preset area of the gummed paper, the rigidity of the preset area of the gummed paper is improved, and the problem of abnormal sound in the use process of the battery is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery packaging, and particularly relates to a battery. BACKGROUND

[0002] With the advent of the mobile terminal era, intelligent mobile products are updated and iterated at an unprecedented speed. In recent years, intelligent products such as tablets and notebooks have developed rapidly.

[0003] In the related art, the battery of an intelligent mobile product includes a battery body and a battery rubber frame. After the battery body and the battery rubber frame are combined and assembled, due to the small gap or unevenness between the two, when the battery is subjected to distortion or extrusion, different degrees of abnormal sound are likely to be generated. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a battery that can solve the problem of different degrees of abnormal sound generated when the battery is subjected to distortion or extrusion in the related art.

[0005] To solve the above technical problem, the application is implemented as follows:

[0006] The application provides a battery, which comprises a battery cell, a shell and a rubber paper.

[0007] The shell is provided with a receiving cavity, the battery cell is installed in the receiving cavity to form a battery base body, and the rubber paper at least partially covers the surface of the battery base body. The battery has a first direction and a second direction perpendicular to each other. The battery cell has two wide sides arranged away along the first direction and two narrow sides arranged away along the second direction. The area of the wide side is greater than that of the narrow side. The rubber paper is provided with a preset area corresponding to the intersection position of the narrow side of the battery cell and the shell. The preset area is provided with a coating.

[0008] Optionally, the shell comprises a frame and a partition plate. The frame is enclosed to form a receiving space. The receiving space is provided with at least one partition plate to separate the receiving space into a plurality of receiving cavities arranged at intervals along the second direction. The battery cell is installed in each receiving cavity. The preset area comprises a first area corresponding to the intersection position of the narrow side of the battery cell and the partition plate. The first area is provided with the coating.

[0009] Optionally, along the arrangement direction of the receiving cavities, the width of the coating is greater than the distance between the adjacent two battery cells.

[0010] Optionally, the preset area comprises a second area corresponding to the intersection position of the narrow side of the battery cell and the frame. The second area is provided with the coating.

[0011] Optionally, along the first direction, the battery base comprises oppositely arranged first and second surfaces, the adhesive paper comprises a first adhesive paper, the first adhesive paper covers the first surface and extends at least partially around the periphery of the second surface, and the preset area is arranged on the first adhesive paper.

[0012] Optionally, the adhesive paper further comprises a second adhesive paper, the second adhesive paper covers the second surface, and the preset area is arranged on the second adhesive paper.

[0013] Optionally, the coating is arranged on a side of the adhesive paper facing the battery base.

[0014] Optionally, the coating is arranged on a side of the adhesive paper away from the battery base.

[0015] Optionally, the thickness of the coating ranges from 0.01 mm to 0.02 mm.

[0016] Optionally, the coating is an ink coating.

[0017] In the embodiments of the present application, the battery base is formed by installing the battery cell in the accommodating cavity of the shell, and then covering the adhesive paper on the surface of the battery base to form a protective effect on the battery base. Further, the preset area corresponding to the junction position of the battery cell and the shell is arranged on the adhesive paper, and the coating is arranged in the preset area to strengthen the preset area of the adhesive paper by the coating, thereby improving the rigidity of the preset area of the adhesive paper, which helps to improve the structural strength of the battery at the junction area of the battery cell and the shell and reduce the problem of abnormal sound during use of the battery.

[0018] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0020] Figure 1 is a schematic view of a first surface in a battery according to an embodiment of the present application;

[0021] Figure 2 is a schematic view of a second surface in a battery according to an embodiment of the present application;

[0022] Figure 3 is a schematic view of a battery structure according to an embodiment of the present application;

[0023] Figure 4is a schematic structural diagram of an electric chip according to an embodiment of the present application.

[0024] Reference signs: 100-battery base, 100a-first surface, 100b-second surface, 110-electric chip, 110a-wide side, 110b-narrow side, 120-housing, 121-bezel, 122-separation plate, 200-adhesive paper, 210-first adhesive paper, 220-second adhesive paper, 300-preset area, 310-first area, 320-second area, 400-coating layer, Y-first direction, X-second direction. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, in which the same or similar components are denoted by the same or similar reference numerals, and therefore the description will be given only once. The embodiments described below are examples for explaining the present application, and should not be understood as limiting the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative work fall within the scope of the present application.

[0026] The terms "first", "second" in the specification and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Before explaining the battery in the embodiments of the present application, the application scenario of the battery is described in detail:

[0030] In the electronic products such as tablet or notebook, after the battery inside is assembled, the surface of the battery is usually wrapped with adhesive tape, which not only improves the connection stability, but also plays a certain protection role. During the assembly of the battery, there is a gap between the internal battery cell and the shell. When the battery is subjected to external distortion or extrusion, the gap will cause the battery to produce different degrees of abnormal sound.

[0031] Therefore, the battery provided by the embodiments of the present application improves the rigidity of the mutual intersection of the battery cell and the shell, so as to reduce the abnormal sound of the battery without increasing the thickness of the battery when the battery is subjected to external distortion or extrusion.

[0032] The battery provided by the embodiments of the present application will be described in detail below in combination with the drawings and specific embodiments and application scenarios.

[0033] As shown in Figures 1 to 3 According to some embodiments of the present application, the battery comprises: a battery cell 110, a shell 120 and an adhesive tape 200; the shell 120 is provided with a receiving cavity, the battery cell 110 is installed in the receiving cavity to form a battery base body 100, and the adhesive tape 200 is at least partially wrapped on the surface of the battery base body 100; the battery has a first direction Y and a second direction X perpendicular to each other, the battery cell 110 has two wide side surfaces 110a arranged away along the first direction Y and two narrow side surfaces 110b arranged away along the second direction X, the area of the wide side surface 110a is greater than the area of the narrow side surface 110b; the adhesive tape 200 is provided with a preset area 300, the preset area 300 corresponds to the intersection position of the narrow side surface 110b of the battery cell 110 and the shell 120, and the preset area 300 is provided with a coating layer 400.

[0034] In the embodiments of the present application, the battery cell 110 is installed in the receiving cavity of the shell 120 to form the battery base body 100, and then the adhesive tape 200 is covered on the surface of the battery base body 100 to form a protection effect on the battery base body 100, and at the same time, the trademark and other marks can be printed on the adhesive tape 200.

[0035] Further, as shown in Figure 4 The electric core 110 can be a square electric core, which includes oppositely arranged top and bottom surfaces, the top surface is provided with an electrode for electrical connection with an electrical device, and the electric core 110 further includes four side surfaces arranged between the top and bottom surfaces, specifically two wide side surfaces 110a arranged away from the first direction Y, and two narrow side surfaces 110b arranged away from the second direction X, wherein the area of the wide side surface 110a is greater than that of the narrow side surface 110b, and the first direction Y can be the thickness direction of the electric core 110.

[0036] It can be understood that the junction position is the matching position of the narrow side surface 110b of the electric core 110 and the inner circumferential surface of the shell 120, and due to factors such as assembly error, there will be a gap at the junction position, and the battery is prone to abnormal noise at the junction position during use. Therefore, in the present application, a preset area 300 is arranged on the adhesive paper 200, the preset area 300 corresponds to the junction position of the narrow side surface 110b of the electric core 110 and the shell 120, and a coating layer 400 is arranged in the preset area 300, so as to strengthen the preset area 300 of the adhesive paper 200 by using the coating layer 400, thereby improving the rigidity of the preset area 300 of the adhesive paper 200, which helps to improve the structural strength of the battery at the junction position of the narrow side surface 110b of the electric core 110 and the shell 120, and avoid abnormal noise and other problems during use of the battery.

[0037] Specifically, the shell 120 is provided with a receiving cavity, and the electric core 110 can be installed in the receiving cavity to be fixed and installed by the shell. The electric core 110 and the shell 120 are combined to form a battery base 100, and the adhesive paper 200 is at least partially wrapped on the surface of the battery base 100. The adhesive paper 200 can be a trademark label, and the coating layer 400 is arranged on the preset area 300 of the adhesive paper 200 to strengthen the specific area of the adhesive paper 200. By using the battery structure of the present application, the local part of the adhesive paper 200 can be strengthened without increasing the components of the battery.

[0038] In some embodiments, the battery base 100 further includes a PCM plate and a cover plate, wherein the PCM plate is a battery circuit protection plate having a power management function and a charging and discharging management function, and the PCM plate is provided with a battery metering management chip, a charging and discharging management chip, a serial storage chip and the like. The PCM plate is arranged on the top of the electric core 110, and the PCM plate is electrically connected with the electric core 110. The cover plate is arranged on the side of the PCM plate away from the electric core 110, for preventing dust, liquid and other sundries from entering the inside of the PCM plate, thereby protecting the battery from damage by the external environment.

[0039] Further, the adhesive paper 200 can be at least partially wrapped on the side of the cover plate away from the PCM plate, thereby playing a protective role for the cover plate.

[0040] In the assembling process of the battery cell 110 and the shell 120, gaps inevitably exist at the positions where the narrow side surface 110b of the battery cell 110 and the shell 120 are in contact. When the battery is subjected to distortion or extrusion, the gaps will produce abnormal sound, which affects the user experience. Therefore, in the present application, the coating layer 400 is arranged on the adhesive paper 200 at the positions corresponding to the gaps, so as to strengthen the specific area of the adhesive paper 200 by using the coating layer 400, thereby reducing the problem of abnormal sound generated by the battery.

[0041] In some embodiments, the side of the adhesive paper 200 facing the battery base body 100 can be provided with an adhesive layer, by which the adhesive paper 200 can be pasted on the surface of the battery base body 100 to realize the connection and fixation of the adhesive paper 200 and the battery base body 100. The adhesive layer can be formed by applying a glue layer or other material with adhesive properties on the surface of the adhesive paper 200.

[0042] Optionally, as shown in Figure 3 The shell 120 includes a frame 121 and a partition plate 122. The frame 121 encloses a containing space, and at least one partition plate 122 is arranged in the containing space to divide the containing space into a plurality of containing cavities arranged at intervals along the second direction X. Each containing cavity is installed with a battery cell 110. The preset area 300 includes a first area 310. The first area 310 corresponds to the position where the narrow side surface 110b of the battery cell 110 and the partition plate 122 are in contact. The first area 310 is provided with the coating layer 400.

[0043] In the embodiments of the present application, the area corresponding to the position where the narrow side surface 110b of the battery cell 110 and the partition plate 122 are in contact is set as the first area 310. Gaps exist at the position where the narrow side surface 110b of the battery cell 110 and the partition plate 122 are in contact. The coating layer 400 is arranged in the first area 310, which can increase the rigidity of the adhesive paper 200 corresponding to the position where the narrow side surface 110b of the battery cell 110 and the partition plate 122 are in contact, thereby reducing the abnormal sound caused by the gaps between the battery cell 110 and the partition plate 122 when the battery is subjected to distortion or extrusion.

[0044] Exemplarily, as shown in Figure 3As shown, two partition plates 122 can be arranged in the accommodating space, and the two partition plates 122 divide the accommodating space into three accommodating cavities. Correspondingly, the battery cell 110 is provided in three, and each accommodating cavity is provided with the battery cell 110. The three battery cells 110 are electrically connected with the PCM plate to realize series connection or parallel connection among the three battery cells 110. The partition plate 122 is located between the adjacent two battery cells 110, and a gap exists between the narrow side surface 110b of the battery cell 110 and the partition plate 122. The first region 310 is set in the area corresponding to the junction position of the partition plate 122 and the narrow side surface 110b of the battery cell 110 in the adhesive paper 200, and the coating layer 400 is arranged in the first region 310, so as to increase the rigidity of the corresponding part of the adhesive paper 200.

[0045] It should be noted that the number of the partition plates 122 and the battery cells 110 arranged in the shell 120 can be flexibly set according to the process requirements of the actual product, and the embodiments of the present application do not limit them.

[0046] Optionally, as shown in the figure, Figure 1 As shown, along the arrangement direction of the plurality of accommodating cavities, the width of the coating layer 400 is greater than the interval between the adjacent two battery cells 110.

[0047] In the embodiments of the present application, the width of the coating layer 400 arranged on the adhesive paper 200 is set to be greater than the interval between the adjacent two battery cells 110, so that the coating layer 400 can fully cover the part between the adjacent two battery cells 110, thereby playing a reinforcing role on the corresponding part of the adhesive paper 200, which helps to reduce the risk of abnormal sound generated by the battery when it is subjected to distortion or extrusion.

[0048] In some embodiments, the width of the coating layer 400 ranges from 8mm to 12mm. For example, the width of the coating layer 400 can be set to 8mm, 10mm, 12mm, or any value or range value between any two values.

[0049] It can be understood that when the width of the coating layer 400 is between 8mm and 12mm, the coating layer 400 can fully cover the gap between the adjacent two battery cells 110, thereby improving the rigidity of the corresponding part of the adhesive paper 200. If the width of the coating layer 400 is too small, the coating layer 400 cannot effectively cover the gap between the adjacent two battery cells 110, which will weaken the reinforcing effect of the coating layer 400 on the corresponding part of the adhesive paper 200, thereby failing to effectively reduce the abnormal sound generated by the battery during extrusion, distortion or deformation. If the width of the coating layer 400 is too large, although the rigidity of the adhesive paper 200 at the corresponding position is improved, it will not only increase the cost, but also occupy more space on the surface of the battery, which is not conducive to the subsequent assembly and use of the battery.

[0050] In another embodiment, the length of the coating layer 400 on the adhesive paper 200 matches the length of the battery cell 110 along the direction perpendicular to the arrangement direction of the plurality of accommodating cavities, so that the coating layer 400 can cover the gap between the adjacent two battery cells 110 to a greater extent, thereby further reducing the abnormal sound generated by the battery when being deformed by extrusion, and improving the user experience.

[0051] Optionally, as shown in Figure 1 the preset area 300 includes a second area 320 corresponding to the position where the battery cell 110 and the frame 121 meet, and the coating layer 400 is arranged in the second area 320.

[0052] In the embodiment of the present application, by arranging the coating layer 400 in the second area 320, the rigidity of the adhesive paper 200 corresponding to the position where the battery cell 110 and the frame 121 meet can be improved, so that the abnormal sound generated at this position when the battery is twisted or extruded can be reduced.

[0053] Specifically, when the battery is twisted or extruded, the position where the battery cell 110 and the frame 121 meet is also prone to generate abnormal sound along the direction perpendicular to the arrangement direction of the plurality of accommodating cavities. The area corresponding to this position is set as the second area 320, and the coating layer 400 is arranged in the second area 320 to locally reinforce the corresponding part of the adhesive paper 200, thereby reducing the abnormal sound generated by the battery when being deformed by extrusion.

[0054] Optionally, as shown in Figure 1 and Figure 2 along the first direction Y, the battery base 100 includes oppositely arranged first and second surfaces 100a and 100b, and the adhesive paper 200 includes a first adhesive paper 210 covering the first surface 100a and extending at least partially around the edges of the second surface 100b, and the preset area 300 is arranged on the first adhesive paper 210.

[0055] In the embodiment of the present application, after the first adhesive paper 210 extends at least partially around the edges of the second surface 100b, the coating layer 400 is arranged on the preset area 300 on the first adhesive paper 210 covering the second surface 100b, so that the strength of the first adhesive paper 210 at the corresponding part of the preset area 300 is improved, thereby further reducing the abnormal sound generated by the battery when being twisted or extruded.

[0056] Specifically, as described above, the battery cell 110 is a square battery cell, and along the thickness direction of the battery cell 110, the battery base includes oppositely arranged first and second surfaces 100a and 100b. The first adhesive paper 210 can not only completely cover the first surface 100a, but also be folded to the second surface 100b and cover the edges of the second surface 100b.

[0057] The first adhesive paper 210 includes a large surface part and a folded part, and the large surface part and the folded part can be provided with a first area and a second area, and a coating 400 is arranged in a preset area in the first area and the second area.

[0058] Optionally, as shown in Figure 1 and Figure 2 The adhesive paper 200 further includes a second adhesive paper 220 covering the second surface, and the second adhesive paper 220 is provided with a preset area 300.

[0059] In the embodiment of the present application, by arranging the second adhesive paper 220 on the second surface of the battery base body 100, and arranging the preset area 300 on the second adhesive paper 220, and arranging the coating 400 in the preset area 300, the rigidity of the second adhesive paper 220 in the corresponding part of the preset area 300 can be enhanced, thereby reducing the abnormal sound generated when the battery is subjected to distortion or extrusion.

[0060] It should be noted that the second adhesive paper 220 can entirely cover the second surface, and the second adhesive paper 220 and the first adhesive paper 210 can have an overlapping part; or the second adhesive paper 220 covers the area of the second surface which is not covered by the first adhesive paper 210.

[0061] In another embodiment, the coating 400 can be arranged on one of the first adhesive paper 210 and the second adhesive paper 220 to locally strengthen the adhesive paper; or the coating 400 can be arranged on both the first adhesive paper 210 and the second adhesive paper 220 to strengthen the adhesive papers on both sides of the battery base body.

[0062] Of course, the covering mode of the second adhesive paper 220 and the first adhesive paper 210, and the structure of the coating 400 arranged on the second adhesive paper 220 and the first adhesive paper 210 can be determined according to the actual production situation of the product, and the present embodiment does not limit them.

[0063] Optionally, the coating 400 is arranged on the side of the adhesive paper 200 facing the battery base body 100.

[0064] In the embodiment of the present application, the coating 400 is arranged on the side of the adhesive paper 200 facing the battery base body 100, so that the use of the side of the adhesive paper 200 away from the battery base body 100 is not affected. For example, a trademark can be printed on the side of the adhesive paper 200 away from the battery base body 100, so that the influence of the coating 400 on the printed trademark can be avoided, the local strengthening effect of the adhesive paper 200 can be met, and the use of the adhesive paper 200 is not affected.

[0065] Optionally, the coating 400 is arranged on the side of the adhesive paper 200 away from the battery base body 100.

[0066] It can be understood that the side of the adhesive paper 200 facing the battery base 100 is provided with an adhesive layer to fix the adhesive paper 200 to the battery base 100. In this application, the coating layer 400 is arranged on the side of the adhesive paper 200 away from the battery base 100, so as to avoid interference between the adhesive layer and the coating layer 400.

[0067] Specifically, the side of the adhesive paper 200 facing the battery base 100 is provided with an adhesive layer, so that the adhesive paper 200 can be more firmly attached to the surface of the battery base 100. In actual application, the coating layer 400 can be arranged in the preset area 300 of the adhesive paper 200 after the adhesive paper 200 is attached to the surface of the battery base 100, or the adhesive paper 200 can be attached to the surface of the battery base 100 after the coating layer 400 is arranged in the preset area 300 of the adhesive paper 200.

[0068] Optionally, the thickness of the coating layer 400 ranges from 0.01 mm to 0.02 mm. For example, the thickness of the coating layer 400 can be 0.01 mm, 0.015 mm, 0.02 mm, or any value or range between any two values.

[0069] In the embodiment of the application, the thickness of the coating layer 400 is set to be between 0.01 mm and 0.02 mm, so as to improve the rigidity of the adhesive paper 200 by using the coating layer 400, thereby increasing the rigidity of the corresponding area of the battery, and reducing the abnormal sound generated by the battery when it is distorted or extruded. At the same time, the thickness of the adhesive paper 200 is not increased too much, which affects the use of the battery.

[0070] It can be understood that when the thickness of the coating layer 400 is too small, the rigidity of the adhesive paper 200 cannot be effectively strengthened by the coating layer 400, thereby failing to effectively reduce the abnormal sound of the battery. When the thickness of the coating layer 400 is too large, the rigidity of the adhesive paper 200 is increased by the coating layer 400, and the abnormal sound generated by the battery when it is extruded is reduced, but the overall thickness of the battery is also significantly increased, which causes difficulty in assembling the entire product in the subsequent battery assembly production process, reduces the production efficiency and the yield of the product. On the other hand, when the thickness of the coating layer 400 is too thick, not only the raw material of the coating layer 400 increases, thereby increasing the material cost, but also the drying time of the coating layer 400 increases, thereby reducing the production efficiency.

[0071] Optionally, the coating layer 400 is an ink coating layer. By arranging the coating layer 400 as an ink coating layer, the ink has good viscosity, heat resistance and stability, so that the ink can maintain relatively stable performance even if the temperature rises during long-term use of the battery, thereby maintaining the strengthening effect on the adhesive paper 200.

[0072] Specifically, the ink can be printed onto the surface of the adhesive paper 200 by silk screen printing to form the coating layer 400. For example, the ink can be selected from volatile drying ink, ultraviolet curing ink, oxidizing drying ink, and the like. The volatile drying ink is convenient to use, but has a long drying time and needs additional blowing equipment to accelerate drying. The ultraviolet curing ink has a fast drying speed and less pollution. The oxidizing drying ink generally needs heating to promote curing. Of course, the type of ink is not limited in the embodiments of the present application, and can be determined according to the actual production process.

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

[0074] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery, characterized by, The battery comprises: an electric core, a shell and a paper; the shell is provided with a receiving cavity, the electric core is installed in the receiving cavity to form a battery base, and the paper at least partially covers the surface of the battery base; the battery has a first direction and a second direction perpendicular to each other, the electric core has two wide sides arranged away from each other along the first direction and two narrow sides arranged away from each other along the second direction, the area of the wide side is larger than that of the narrow side; the paper is provided with a preset area corresponding to the junction position of the narrow side of the electric core and the shell, and a coating is arranged in the preset area.

2. The battery of claim 1, wherein, The shell comprises a frame and a partition plate, the frame encloses a receiving space, and the receiving space is provided with at least one partition plate to divide the receiving space into a plurality of receiving cavities arranged along the second direction, and the electric core is installed in each receiving cavity; the preset area comprises a first area corresponding to the junction position of the narrow side of the electric core and the partition plate, and the coating is arranged in the first area.

3. The battery of claim 2, wherein, Along the arrangement direction of the receiving cavities, the width of the coating is greater than the distance between the adjacent two electric cores.

4. The battery of claim 2, wherein, The preset area comprises a second area corresponding to the junction position of the narrow side of the electric core and the frame, and the coating is arranged in the second area.

5. The battery of claim 1, wherein, Along the first direction, the battery base comprises a first surface and a second surface arranged oppositely, the paper comprises a first paper, the first paper covers the first surface and at least partially extends to cover the edges of the second surface, and the first paper is provided with the preset area.

6. The battery of claim 5, wherein, The paper further comprises a second paper, the second paper covers the second surface, and the second paper is provided with the preset area.

7. The battery according to any one of claims 1 to 6, wherein The coating is arranged on the side of the paper facing the battery base.

8. The battery according to any one of claims 1 to 6, wherein The coating is arranged on the side of the paper away from the battery base.

9. The battery of claim 1, wherein, The thickness of the coating ranges from 0.01mm to 0.02mm.

10. The battery of claim 1, wherein, The coating is an ink coating.

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