Battery and electronic equipment

Abstract

The utility model discloses a battery and electronic equipment. The battery comprises a battery shell and a protective layer. The battery shell comprises a bottom shell and a shell cover, an opening is formed in the bottom shell, a first flange edge is arranged on the periphery of the opening, the shell cover covers the bottom shell and forms a containing cavity, a second flange edge is arranged on the periphery of the shell cover, and the first flange edge and the second flange edge are fixedly connected; the protective layer wraps at least part of the edge of the first flange edge and at least part of the edge of the second flange edge. According to the steel shell battery, the problem that normal operation of electronic equipment is affected due to the fact that the flange edge of the steel shell battery in the prior art is sharp can be solved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery and an electronic device. Background Art

[0002] At present, the mainstream mobile phone batteries on the market are of soft-pack structure. However, as the functionality of electronic products becomes increasingly powerful, more stringent requirements are placed on batteries that occupy a larger area of ​​the device as a power source. The battery size needs to be made smaller and the battery capacity needs to be increased to meet daily mobile use needs.

[0003] Compared with soft-pack batteries, the advantages of steel-shell batteries are that the length of the protection plate can be shorter, and the volume is smaller at the same capacity. At the same time, the steel-shell battery shell is hard and the battery safety performance is better. In addition, the shell of the steel-shell battery is flatter, and the connection stability between the battery and the electrical device is better.

[0004] Steel-shell batteries are made of metal. Generally, the shell of a steel-shell battery is used as a battery output of one polarity, and the other opposite polarity needs to be led out separately. In addition, the flange edge of the steel-shell battery is relatively sharp, which will affect the normal operation of the electronic equipment when it is used in electronic equipment. Utility Model Content

[0005] The main purpose of the present application is to provide a battery and an electronic device to solve the problem that the flange edge of the steel shell battery in the prior art is relatively sharp, which affects the normal operation of the electronic device.

[0006] According to one aspect of the present application, a battery is provided, comprising:

[0007] A battery case, the battery case comprising a bottom case and a case cover, the bottom case being provided with an opening, the outer periphery of the opening being provided with a first flange edge, the case cover being provided on the bottom case to form an accommodating cavity, the outer periphery of the case cover being provided with a second flange edge, the first flange edge and the second flange edge being fixedly connected;

[0008] A protective layer is coated on at least a portion of the edges of the first flange edge and the second flange edge.

[0009] Further, the width D1 of the first flange edge along the inner and outer directions of the opening satisfies the relationship: 0mm≤D1≤0.4mm; and / or,

[0010] A width D2 of the second flange edge along the inner and outer directions of the opening satisfies the relationship: 0 mm ≤ D2 ≤ 0.4 mm.

[0011] Furthermore, the bottom shell includes a first surface, a second surface, a third surface, and a fourth surface sequentially arranged along the outer circumference of the bottom shell, and the protective layer at least covers any three surfaces among the first surface, the second surface, the third surface, and the fourth surface.

[0012] Furthermore, the bottom shell includes a first surface, a second surface, a third surface, and a fourth surface which are arranged in sequence along the outer circumference of the bottom shell, and the protective layer includes a main section and an extension section, the main section is coated on the first surface, the second surface and the third surface, and the extension section is coated on two opposite ends of the fourth surface.

[0013] Furthermore, the battery further comprises:

[0014] A battery cell, wherein the battery cell is disposed in the accommodating cavity;

[0015] A pole assembly, the pole assembly comprising a first pole and a second pole, the first pole and the second pole being arranged on the fourth surface at intervals;

[0016] A protection plate, which is disposed on the fourth surface and is electrically connected to the first pole and the second pole;

[0017] The insulating member includes at least one insulating member, and at least one insulating member is disposed between the protective plate and the battery housing.

[0018] Furthermore, the protective layer comprises:

[0019] A first main body portion, the first main body portion is arranged on end surfaces of the first flange edge and the second flange edge;

[0020] a first flange portion, the first flange portion being connected to a first end of the first main body portion, the first flange portion being disposed on a surface of the first flange edge away from the shell cover and extending along a thickness direction of the battery;

[0021] The second flange portion is connected to the second end of the first main body portion, and the second flange portion is arranged on a surface of the second flange side away from the bottom shell and extends along the thickness direction of the battery.

[0022] Furthermore, the protective layer comprises:

[0023] A first section, the first section is arranged on a surface of the shell cover away from the bottom shell and extends along an outer-inner direction of the opening;

[0024] The second section is connected to the first section, and the second section is arranged on the bottom shell and extends along the thickness direction of the battery.

[0025] Furthermore, along the thickness direction of the battery, the thickness T1 of the protective layer satisfies the relationship: 0.02 mm ≤ T1 ≤ 0.05 mm;

[0026] Along the inner and outer directions of the opening, the width D3 of the first section satisfies the relationship: 0<D3≤3mm.

[0027] Furthermore, the battery also includes an insulating layer, and the insulating layer is coated on the outer surface of the battery shell.

[0028] Furthermore, the bottom shell includes a first surface, a second surface, a third surface, and a fourth surface sequentially arranged along the outer circumference of the bottom shell, and the battery also includes a support layer, which is arranged between the bottom shell and the insulating layer, and the support layer is coated on the first surface, the second surface, and the third surface.

[0029] Furthermore, the bottom shell includes a first surface, a second surface, a third surface, and a fourth surface sequentially arranged along the outer circumference of the bottom shell, and the battery also includes a support layer, which is arranged between the bottom shell and the insulating layer, and the support layer is coated on opposite ends of the first surface, the second surface, the third surface, and the fourth surface.

[0030] Furthermore, the protective layer includes a foam layer, a glue-dispensing layer or an injection molding layer.

[0031] Further, when the protective layer is a foam layer, the width D4 of the foam layer along the inner and outer directions of the opening and the width D1 of the first flange edge along the inner and outer directions of the opening satisfy the relationship: D4≤D1+0.1mm; and / or,

[0032] When the protective layer is a glue-dot layer, the width D5 of the glue-dot layer along the inner and outer directions of the opening and the width D1 of the first flange edge along the inner and outer directions of the opening satisfy the relationship: D1+0.2mm≤D5≤D1+0.4mm; and / or,

[0033] When the protective layer is an injection molding layer, a width D6 of the injection molding layer along the inner and outer directions of the opening and a width D1 of the first flange edge along the inner and outer directions of the opening satisfy the relationship: D6≤D1+0.1mm.

[0034] On the other hand, the present application also provides an electronic device, which includes the above-mentioned battery.

[0035] In the present application, when the battery is actually processed, the first flange edge and the second flange edge can be fixedly connected, and then the protective layer can be coated on at least part of the edge of the first flange edge and the second flange edge, that is, the protective layer can be coated on the end faces of the first flange edge and the second flange edge, or the first flange edge and the second flange edge can be completely coated. With such a configuration, when the battery is actually used, the presence of the first flange edge and the second flange edge is conducive to the connection between the bottom shell and the shell cover, thereby improving the sealing effect of the battery shell, and then making the interior of the accommodating cavity of the bottom shell a vacuum environment, thereby ensuring that the battery has stable electrical performance; and the presence of the protective layer can perform puncture-proof and insulation treatment on the flange edge, effectively preventing the sharp flange edge from causing damage to the electronic device, thereby improving the stability of the battery's electrical performance, thereby effectively ensuring the normal operation of the electronic device.

[0036] Compared with the structure of the steel shell battery in the prior art, the newly added protective layer in the present application can provide puncture-proof and insulation treatment for the flange edge, effectively improving the stability of the battery's electrical performance, and when the battery is used in electronic equipment, it can ensure the normal operation of the electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0038] Figure 1 An exploded view of a battery disclosed in an embodiment of the present application;

[0039] Figure 2 The attached embodiment disclosed in this application Figure 1 A magnified schematic diagram of the middle A area;

[0040] Figure 3 This is a schematic diagram of the structure of the battery housing disclosed in the embodiment of the present application;

[0041] Figure 4 The attached embodiment disclosed in this application Figure 3 A magnified schematic diagram of the middle B area;

[0042] Figure 5 It is a schematic diagram of the structure in which the protective layer disclosed in the embodiment of the present application is coated on the first surface, the second surface and the third surface;

[0043] Figure 6 A schematic diagram of a structure in which a protective layer disclosed in an embodiment of the present application is coated on two opposite ends of a first surface, a second surface, a third surface, and a fourth surface;

[0044] Figure 7 A schematic diagram of the structure of the insulating layer and the protective layer disclosed in the embodiment of the present application;

[0045] Figure 8 A schematic diagram of the structure of a battery disclosed in an embodiment of the present application with the insulating layer removed;

[0046] Fig. 9 A side view of a battery disclosed in an embodiment of the present application with the insulating layer removed;

[0047] Fig.10 A schematic diagram of the structure of the battery coating insulation layer disclosed in the embodiment of the present application;

[0048] Fig.11 A top view of the battery-coated insulating layer disclosed in an embodiment of the present application;

[0049] Fig.12 This is a schematic diagram of the structure of the first section disclosed in the embodiment of the present application;

[0050] Fig.13 It is a structural schematic diagram of the second section disclosed in the embodiment of the present application;

[0051] Fig.14 It is a schematic structural diagram of the first main body portion, the first flange portion and the second flange portion disclosed in the embodiment of the present application;

[0052] Fig.15 A schematic diagram of the structure of a battery disclosed in an embodiment of the present application having a support layer;

[0053] Fig.16 The attached embodiment disclosed in this application Fig.15 Enlarged schematic diagram of area C in the middle.

[0054] The above drawings include the following reference numerals:

[0055] 10. Battery case; 11. Bottom shell; 111. First flange edge; 1101. First surface; 1102. Second surface; 1103. Third surface; 1104. Fourth surface; 12. Shell cover; 121. Second flange edge; 20. Protective layer; 21. Main body section; 22. Extension section; 23. First main body; 24. First flange portion; 25. Second flange portion; 26. First section; 27. Second section; 30. Post assembly; 31. First post; 32. Second post; 40. Protective plate; 50. Insulation member; 60. Insulation layer; 70. Support layer. DETAILED DESCRIPTION

[0056] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0059] As described in the background technology, the shell of the existing steel shell battery is made of metal, which results in a sharp flange edge of the steel shell battery. When the steel shell battery is used in an electronic device, it will affect the normal operation of the electronic device. To this end, the present application proposes a new type of battery, which can prevent the flange edge from causing damage to the electronic device during actual use. The battery of the present application will be introduced and described in detail below in conjunction with the accompanying drawings.

[0060] It should be noted that the thickness direction of the battery in this application is Fig.16 The direction indicated by the letter X in the figure; the opening inside-out direction refers to the direction from the inside of the opening to the outside of the opening, and the opening outside-in direction refers to the direction from the outside of the opening to the inside of the opening. Figure 3 An inner direction of the opening and an outer direction of the opening are shown.

[0061] See also Figures 1 to 16 As shown, the present application provides a battery, including a battery casing 10 and a protective layer 20 .

[0062] Among them, the battery shell 10 includes a bottom shell 11 and a shell cover 12, the bottom shell 11 is provided with an opening (not shown in the drawings), the outer periphery of the opening is provided with a first flange edge 111, the shell cover 12 is covered on the bottom shell 11 and forms an accommodating cavity, the outer periphery of the shell cover 12 is provided with a second flange edge 121, the first flange edge 111 and the second flange edge 121 are fixedly connected; the protective layer 20 covers at least part of the edges of the first flange edge 111 and the second flange edge 121.

[0063] In this embodiment, the outer periphery of the opening is provided with a first flange 111, and the outer periphery of the shell cover 12 is provided with a second flange 121. When the battery is actually processed, the first flange 111 and the second flange 121 can be fixedly connected, and then the protective layer 20 can be coated on at least part of the edge of the first flange 111 and the second flange 121, that is, the protective layer 20 can be coated on the end faces of the first flange 111 and the second flange 121, or the first flange 111 and the second flange 121 can be completely coated. In this way, when the battery is actually used, the presence of the first flange 111 and the second flange 121 is conducive to the connection between the bottom shell 11 and the shell cover 12, thereby improving the sealing effect of the battery shell 10, and then making the interior of the accommodating cavity of the bottom shell 11 a vacuum environment, thereby ensuring that the battery has stable electrical performance; and the presence of the protective layer 20 can perform puncture-proof and insulation treatment on the flange, effectively preventing the sharp flange from causing damage to the electronic equipment, thereby improving the stability of the electrical performance of the battery, thereby effectively ensuring the normal operation of the electronic equipment.

[0064] Compared with the structure of the steel shell battery in the prior art, the newly added protective layer 20 in this embodiment can provide puncture-proof and insulation treatment for the flange edge, effectively improving the stability of the battery's electrical performance, and when the battery is used in electronic equipment, it can ensure the normal operation of the electronic equipment.

[0065] Specifically, the first flange edge 111 in this embodiment is welded to the second flange edge 121 to improve the sealing effect of the battery housing 10, so that the interior of the accommodating cavity of the bottom shell 11 is a vacuum environment, which ensures that the battery has stable electrical performance to a certain extent.

[0066] Further, in order to ensure the reliability of the sealing effect of the battery housing 10, see Figure 4As shown, the width D1 of the first flange edge 111 along the inner and outer directions of the opening in this embodiment satisfies the relationship: 0mm≤D1≤0.4mm, for example 0mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm. When the battery is used in an electronic device, if the width of the first flange edge 111 is greater than 0.4mm, it will occupy the space inside the electronic device, thereby affecting the installation of other components in the electronic device. It is worth noting that when the width of the first flange edge 111 along the inner and outer directions of the opening is 0mm, the setting of the protective layer 20 can be cancelled, and only the insulating layer 60 can be used to achieve the anti-puncture and insulation effects of the flange edge.

[0067] Further, in order to ensure the reliability of the sealing effect of the battery housing 10, see Figure 4 As shown, in this embodiment, the width D2 of the second flange edge 121 along the inner and outer directions of the opening satisfies the relationship: 0mm≤D2≤0.4mm, for example, 0mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm. When the battery is used in an electronic device, if the width of the second flange edge 121 is greater than 0.4mm, it will occupy the space inside the electronic device, thereby affecting the installation of other components in the electronic device. It is worth noting that when the width of the second flange edge 121 along the inner and outer directions of the opening is 0mm, the setting of the protective layer 20 can be cancelled, and only the insulating layer 60 can be used to achieve the anti-puncture and insulation effects of the flange edge.

[0068] Further, see Figure 5 As shown, in one embodiment shown in the present application, the bottom shell 11 includes a first surface 1101, a second surface 1102, a third surface 1103, and a fourth surface 1104 sequentially arranged along the outer periphery of the bottom shell 11, and the protective layer 20 is at least coated on any three of the first surface 1101, the second surface 1102, the third surface 1103, and the fourth surface 1104. In other words, the protective layer 20 can be coated on the first surface 1101, the second surface 1102, and the third surface 1103, or on the second surface 1102, the third surface 1103, and the fourth surface 1104. Figure 5 The protective layer 20 is shown when it is coated on the first surface 1101, the second surface 1102, and the third surface 1103. In this way, the protective layer 20 can perform puncture-proof and insulation treatment on the first surface 1101, the second surface 1102, and the third surface 1103 of the battery housing 10, thereby preventing the flange from affecting the stability of the battery's electrical performance, thereby ensuring the normal operation of the electronic device. In addition, the first flange 111 and the second flange 121 of the fourth surface 1104 are protected by the insulating member 50.

[0069] Further, see Figure 6 As shown, in another embodiment shown in the present application, the bottom shell 11 includes a first surface 1101, a second surface 1102, a third surface 1103, and a fourth surface 1104 arranged in sequence along the outer periphery of the bottom shell 11, and the protective layer 20 includes a main section 21 and an extension section 22, the main section 21 is coated on the first surface 1101, the second surface 1102, and the third surface 1103, and the extension section 22 is coated on the opposite ends of the fourth surface 1104. In this way, the protective layer 20 can perform anti-puncture and insulation treatment on the first surface 1101, the second surface 1102, the third surface 1103, and the first flange edge 111 and the second flange edge 121 of the opposite ends of the fourth surface 1104 of the battery housing 10, thereby preventing the flange edge from affecting the stability of the electrical performance of the battery, thereby ensuring the normal operation of the electronic device. In addition, the first flange edge 111 and the second flange edge 121 located between the opposite ends of the fourth surface 1104 are protected by the insulating member 50.

[0070] Further, see Figure 1 as well as Figures 8 to 9 As shown, the battery in this embodiment further includes a battery cell (not shown in the drawings), a pole assembly 30, a protection plate 40 and an isolation member 50. The battery cell is disposed in the accommodating cavity; the pole assembly 30 includes a first pole 31 and a second pole 32, and the first pole 31 and the second pole 32 are spaced apart and disposed on the fourth surface 1104; the protection plate 40 is disposed on the fourth surface 1104 and is electrically connected to the first pole 31 and the second pole 32; the isolation member 50 includes at least one, and at least one isolation member 50 is disposed between the protection plate 40 and the battery housing 10. Specifically, the presence of the first flange edge 111 and the second flange edge 121 can improve the sealing of the battery housing 10, thereby ensuring that the interior of the accommodating cavity is a vacuum environment. When the battery cell is arranged in the accommodating cavity, the stability of the battery cell can be ensured; the main function of the first pole 31 and the second pole 32 is to connect the positive and negative poles of the battery with the outside world, build a circuit, and realize the transmission and conversion of electric energy. In this embodiment, the first pole 31 is the positive pole and the second pole 32 is the negative pole; the protection board 40 is an integrated circuit board that can protect the battery. It can protect the safety and life of the battery when the battery is overcharged, over-discharged and short-circuited. In this embodiment, the protection board 40 is arranged on the fourth surface 1104, which optimizes the length dimension of the protection board 40 to a certain extent, thereby reducing the space occupied by the protection board 40 inside the electronic device, thereby improving the energy density of the battery; the isolation member 50 can play an insulating and fixing role, and can fix the protection board 40 to the battery, and can also insulate the protection board 40 and the battery.

[0071] Specifically, the insulating member 50 can be a double-sided tape, which can insulate and fix the protective plate 40 and the battery. In addition, the insulating member 50 can also include thermal conductive foam, thermal conductive silicone or phase change material, etc. In this way, the thermal conductivity of the battery housing 10 can be improved, thereby reducing the heat generated by the protective plate 40 and the battery cell, and ultimately achieving the purpose of heat dissipation.

[0072] Specifically, the width of the insulating member 50 in this embodiment along the inner and outer directions of the opening is greater than the width of the first flange edge 111 and the second flange edge 121 along the inner and outer directions of the opening, so that the first flange edge 111 and the second flange edge 121 can be protected from puncture and insulated.

[0073] It is understood that, in this embodiment, the insulating member 50 may include one, two or three. Figure 1 FIG. 2 shows a case where there are three insulating members 50. In this case, the first pole 31 and the second pole 32 are respectively disposed between two adjacent insulating members 50, and the protective layer 20 is coated on the first surface 1101, the second surface 1102 and the third surface 1103. Figure 5 As shown, in this way, the insulating member 50 can perform puncture-proof and insulation treatment on the first flange edge 111 and the second flange edge 121 of the fourth surface 1104; in an embodiment not shown in the present application, the insulating member 50 is one, and in this case, the insulating member 50 is arranged between the first pole 31 and the second pole 32, and the arrangement of the protective layer 20 is as follows Figure 6 As shown, the protective layer 20 is coated on the first surface 1101, the second surface 1102, the third surface 1103 and the opposite ends of the fourth surface 1104, so that the insulating member 50 can perform puncture-proof and insulation treatment on the first flange edge 111 and the second flange edge 121 not coated by the protective layer 20.

[0074] Further, see Fig.14 As shown, the protective layer 20 in this embodiment includes a first main body 23, a first flange 24 and a second flange 25. The first main body 23 is arranged on the end surface of the first flange 111 and the second flange 121; the first flange 24 is connected to the first end of the first main body 23, and the first flange 24 is arranged on the surface of the first flange 111 away from the shell cover 12 and extends along the thickness direction of the battery; the second flange 25 is connected to the second end of the first main body 23, and the second flange 25 is arranged on the surface of the second flange 121 away from the bottom shell 11 and extends along the thickness direction of the battery. In this way, the protective layer 20 can completely cover the first flange 111 and the second flange 121, and further protect the flanges, thereby preventing the sharp flanges from damaging the electronic equipment and effectively ensuring the normal operation of the electronic equipment.

[0075] Further, see Figure 12 to Figure 13As shown, the protective layer 20 in this embodiment includes a first section 26 and a second section 27. The first section 26 is arranged on the surface of the shell cover 12 away from the bottom shell 11 and extends in the direction of the opening; the second section 27 is connected to the first section 26, and the second section 27 is arranged on the bottom shell 11 and extends in the thickness direction of the battery. In this way, the protective layer 20 can completely cover the first flange edge 111 and the second flange edge 121, further protecting the flange edges, thereby preventing the sharp flange edges from damaging the electronic equipment and effectively ensuring the normal operation of the electronic equipment.

[0076] Alternatively, see Fig.16 As shown, along the thickness direction of the battery, the thickness T1 of the protective layer 20 in this embodiment satisfies the relationship: 0.02mm≤T1≤0.05mm, for example, 0.02mm, 0.025mm, 0.03mm, 0.035mm, 0.04mm, 0.045mm, 0.05mm. In other words, Fig.12 and attached Fig.13 The thickness of the first section 26 and the second section 27 are both 0.2 mm to 0.05 mm. At this time, the protective layer 20 is coated on the first surface 1101, the second surface 1102, the third surface 1103 and the surface of the shell cover 12 away from the bottom shell 11, so that the flange edge can be puncture-proof and insulated, thereby improving the stability of the battery and ensuring the normal operation of the electronic device. It should be noted that an insulating layer 60 can be added on the basis of the protective layer 20, and the protective layer 20 and the insulating layer 60 can provide double-layer protection for the flange edge.

[0077] Specifically, see Fig.12 As shown, along the inner and outer directions of the opening, the width D3 of the first section 26 in this embodiment satisfies the relationship: 0<D3≤3mm, for example, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm. When the battery is used in an electronic device, if the width of the first section 26 is greater than 3mm, it will occupy the space inside the electronic device, thereby affecting the installation of other components in the electronic device.

[0078] Further, see Figure 7 as well as Figure 10 to Figure 11 As shown, the battery in this embodiment further includes an insulating layer 60, which is coated on the outer surface of the battery housing 10. That is, all surfaces of the battery housing 10, the insulating member 50 and the protective plate 40 are coated by the insulating layer 60 to form a fully wrapped structure of the insulating layer 60. In this way, the battery can be insulated to improve the stability of the battery, thereby ensuring the normal operation of the electronic device.

[0079] Further, see Figure 15 to Figure 16As shown, the bottom shell 11 in this embodiment includes a first surface 1101, a second surface 1102, a third surface 1103, and a fourth surface 1104 sequentially arranged along the periphery of the bottom shell 11, and the battery further includes a support layer 70, which is arranged between the bottom shell 11 and the insulating layer 60, and the support layer 70 is coated on the first surface 1101, the second surface 1102, and the third surface 1103. Since the first flange 111 protrudes from the bottom shell 11 and the second flange 121 protrudes from the shell cover 12, when the insulating layer 60 is coated on the outer surface of the battery housing 10, there is a gap between the insulating layer 60 and the outer surface of the bottom shell 11, and the existence of the gap will affect the overall shape of the battery and cannot ensure the consistency of the battery size. Therefore, in this embodiment, the support layer 70 is arranged between the bottom shell 11 and the insulating layer 60, which can play the effect of compensating the overall shape of the battery to compensate for the defects of the battery shape caused by the protrusion of the first flange 111 and the second flange 121, thereby ensuring the consistency of the battery size. It is worth noting that, since three isolation members 50 are disposed on the fourth surface 1104 , the isolation members 50 can compensate for the gap between the fourth surface 1104 and the insulating layer 60 .

[0080] Further, see Figure 15 to Figure 16 As shown, the bottom shell 11 in this embodiment includes a first surface 1101, a second surface 1102, a third surface 1103, and a fourth surface 1104 which are sequentially arranged along the periphery of the bottom shell 11, and the battery further includes a support layer 70, which is arranged between the bottom shell 11 and the insulating layer 60, and the support layer 70 covers the opposite ends of the first surface 1101, the second surface 1102, the third surface 1103, and the fourth surface 1104. In this way, the support layer 70 can compensate for the gaps between the opposite ends of the first surface 1101, the second surface 1102, the third surface 1103, and the fourth surface 1104 and the insulating layer 60. At this time, the insulating member 50 of the fourth surface 1104 includes one, and the insulating member 50 can compensate for the remaining gap of the fourth surface 1104, thereby ensuring the consistency of the battery size.

[0081] Specifically, the support layer 70 in this embodiment includes a foam layer and an injection molding layer.

[0082] Furthermore, the protection layer 20 in this embodiment includes a foam layer, a glue-dispensing layer or an injection-molded layer.

[0083] Further, see Figure 2As shown, when the protective layer 20 in this embodiment is a foam layer, the width D4 of the foam layer along the inner and outer directions of the opening and the width D1 of the first flange edge 111 along the inner and outer directions of the opening satisfy the relationship: D4≤D1+0.1mm. In other words, the foam layer can have a slight interference, which is because the foam layer is compressible, and a slight interference will not affect the assembly and appearance of the battery. In this way, the presence of the foam layer can provide puncture-proof and insulation treatment for the first flange edge 111 and the second flange edge 121.

[0084] Further, see Fig.14 As shown, when the protective layer 20 in this embodiment is a glue layer, the width D5 of the glue layer along the inner and outer directions of the opening and the width D1 of the first flange edge 111 along the inner and outer directions of the opening satisfy the relationship: D1+0.2mm≤D5≤D1+0.4mm. In this way, the existence of the glue layer can provide puncture-proof and insulation treatment for the first flange edge 111 and the second flange edge 121.

[0085] Further, see Figure 2 As shown, when the protective layer 20 in this embodiment is an injection molding layer, the width D6 of the injection molding layer along the inner and outer directions of the opening and the width D1 of the first flange edge 111 along the inner and outer directions of the opening satisfy the relationship: D6≤D1+0.1mm. In other words, the injection molding layer can have a slight interference fit. In this way, the presence of the injection molding layer can provide puncture-proof and insulation treatment for the first flange edge 111 and the second flange edge 121.

[0086] On the other hand, the embodiment of the present application further provides an electronic device, which includes the above-mentioned battery, and thus the electronic device includes all the technical effects of the above-mentioned battery. Since the technical effects of the battery have been described in detail above, they will not be repeated here.

[0087] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0088] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0089] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery, characterized in that: include: A battery housing (10), the battery housing (10) comprising a bottom housing (11) and a housing cover (12), the bottom housing (11) being provided with an opening, the outer periphery of the opening being provided with a first flange edge (111), the housing cover (12) being provided on the bottom housing (11) to form an accommodating cavity, the outer periphery of the housing cover (12) being provided with a second flange edge (121), the first flange edge (111) and the second flange edge (121) being fixedly connected; A protective layer (20), the protective layer (20) covering at least a portion of the edges of the first flange edge (111) and the second flange edge (121).

2. The battery according to claim 1, characterized in that The width D1 of the first flange edge (111) along the inner and outer directions of the opening satisfies the relationship: 0mm≤D1≤0.4mm; and / or, A width D2 of the second flange edge (121) along the inner and outer directions of the opening satisfies the relationship: 0 mm ≤ D2 ≤ 0.4 mm.

3. The battery according to claim 1, characterized in that The bottom shell (11) comprises a first surface (1101), a second surface (1102), a third surface (1103), and a fourth surface (1104) which are sequentially arranged along the outer circumference of the bottom shell (11), and the protective layer (20) at least covers any three of the first surface (1101), the second surface (1102), the third surface (1103), and the fourth surface (1104).

4. The battery according to claim 1, characterized in that The bottom shell (11) comprises a first surface (1101), a second surface (1102), a third surface (1103), and a fourth surface (1104) which are sequentially arranged along the outer circumference of the bottom shell (11); the protective layer (20) comprises a main section (21) and an extension section (22); the main section (21) is coated on the first surface (1101), the second surface (1102), and the third surface (1103); and the extension section (22) is coated on two opposite ends of the fourth surface (1104).

5. The battery according to any one of claims 3 or 4, characterized in that The battery also includes: A battery cell, wherein the battery cell is disposed in the accommodating cavity; A pole assembly (30), the pole assembly (30) comprising a first pole (31) and a second pole (32), the first pole (31) and the second pole (32) being arranged at intervals on the fourth surface (1104); A protection plate (40), the protection plate (40) being disposed on the fourth surface (1104) and electrically connected to the first pole (31) and the second pole (32); An insulating member (50), the insulating member (50) comprising at least one, and the at least one insulating member (50) is arranged between the protection plate (40) and the battery housing (10).

6. The battery according to claim 1, characterized in that The protective layer (20) comprises: A first main body portion (23), wherein the first main body portion (23) is disposed on end surfaces of the first flange edge (111) and the second flange edge (121); a first flange portion (24), the first flange portion (24) being connected to a first end of the first main body portion (23), the first flange portion (24) being arranged on a surface of the first flange edge (111) facing away from the shell cover (12) and extending along a thickness direction of the battery; A second flange portion (25), the second flange portion (25) is connected to the second end of the first main body portion (23), and the second flange portion (25) is arranged on a surface of the second flange edge (121) away from the bottom shell (11) and extends along the thickness direction of the battery.

7. The battery according to claim 1, characterized in that The protective layer (20) comprises: A first section (26), the first section (26) being arranged on a surface of the shell cover (12) facing away from the bottom shell (11) and extending in an outer-inner direction of the opening; A second section (27), the second section (27) is connected to the first section (26), and the second section (27) is arranged on the bottom shell (11) and extends along the thickness direction of the battery.

8. The battery according to claim 7, characterized in that Along the thickness direction of the battery, the thickness T1 of the protective layer (20) satisfies the relationship: 0.02 mm ≤ T1 ≤ 0.05 mm; Along the inner and outer directions of the opening, the width D3 of the first section (26) satisfies the relationship: 0<D3≤3mm.

9. The battery according to claim 1, characterized in that The battery further comprises an insulating layer (60), wherein the insulating layer (60) is coated on the outer surface of the battery casing (10).

10. The battery according to claim 9, characterized in that The bottom shell (11) comprises a first surface (1101), a second surface (1102), a third surface (1103), and a fourth surface (1104) which are sequentially arranged along the periphery of the bottom shell (11); the battery further comprises a support layer (70); the support layer (70) is arranged between the bottom shell (11) and the insulating layer (60), and the support layer (70) is coated on the first surface (1101), the second surface (1102), and the third surface (1103).

11. The battery according to claim 9, characterized in that The bottom shell (11) comprises a first surface (1101), a second surface (1102), a third surface (1103), and a fourth surface (1104) which are sequentially arranged along the outer periphery of the bottom shell (11); the battery further comprises a support layer (70), wherein the support layer (70) is arranged between the bottom shell (11) and the insulating layer (60), and the support layer (70) is coated on opposite ends of the first surface (1101), the second surface (1102), the third surface (1103), and the fourth surface (1104).

12. The battery according to any one of claims 1 to 4 and 6 to 11, characterized in that The protective layer (20) comprises a foam layer, a glue-dispensing layer or an injection-molded layer.

13. The battery according to claim 12, characterized in that When the protective layer (20) is a foam layer, the width D4 of the foam layer along the inner and outer directions of the opening and the width D1 of the first flange edge (111) along the inner and outer directions of the opening satisfy the relationship: D4≤D1+0.1mm; and / or, When the protective layer (20) is a glue-dot layer, the width D5 of the glue-dot layer along the inner and outer directions of the opening and the width D1 of the first flange edge (111) along the inner and outer directions of the opening satisfy the relationship: D1+0.2mm≤D5≤D1+0.4mm; and / or, When the protective layer (20) is an injection molded layer, the width D6 of the injection molded layer along the inner and outer directions of the opening and the width D1 of the first flange edge (111) along the inner and outer directions of the opening satisfy the relationship: D6≤D1+0.1mm.

14. An electronic device, characterized in that: The electronic device comprises the battery according to any one of claims 1 to 13.

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