Battery cover plate, battery housing, battery and electronic device

Abstract

The present disclosure relates to a battery cover plate (1), a battery housing (10), a battery (100) and an electronic device.The battery cover plate (1) comprises a body (11), a first connecting section (12) and a second connecting section (13) formed in one piece, wherein the first connecting section (12) and the second connecting section (13) are both connected at an enclosed angle to the body (11), the first connecting section (12) comprises a first plate section (121) and a second plate section (122), wherein the first plate section (121) is connected at an enclosed angle to the body (11), the second plate section (122) is connected at an enclosed angle to the first plate section (121), the first plate section (121) and the second plate section (122) form a stepped structure, and the second plate section (122) is provided with a terminal pin opening.

Description

Battery cover, battery housing, battery and electronic equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to patent application number 202322683011.1, filed September 28, 2023, entitled “Battery Cover, Battery Housing, Battery and Electronic Device,” all of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the technical field of electronic equipment, and in particular to a battery cover, a battery housing, a battery, and an electronic device. Background Art

[0004] For electronic devices such as mobile phones and tablets, batteries are an important component. In related technologies, the poles are often arranged to protrude from the surface of the shell, which takes up space and is not conducive to battery assembly.

[0005] Summary of the Invention

[0006] The present disclosure aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present disclosure provides a battery cover that can facilitate the assembly of a battery housing.

[0007] The present disclosure also provides a battery case.

[0008] The present disclosure also provides a battery.

[0009] The present disclosure also provides an electronic device.

[0010] A battery cover plate is proposed in an embodiment of the first aspect of the present disclosure, and the battery cover plate includes an integrally formed main body, a first connecting part and a second connecting part, the first connecting part and the second connecting part are both connected to the main body at an angle, the first connecting part includes a first plate segment and a second plate segment, the first plate segment is connected to the main body at an angle, the second plate segment is connected to the first plate segment at an angle, the first plate segment and the second plate segment form a step structure, and the second plate segment is provided with a pole hole.

[0011] According to the battery cover plate of the embodiment of the present disclosure, the battery cover plate includes an integrally formed main body portion, a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion are both connected to the main body portion at an angle. The first connecting portion with a step structure is also provided with a pole hole to facilitate the assembly of the pole assembly of the battery and increase the space utilization of the battery in the electronic device. At the same time, when the battery cover plate is used for the battery housing, due to the provision of the second connecting portion, it can provide more assembly surfaces for other plates of the battery housing together with the first connecting portion and the main body portion to facilitate the assembly of the battery housing.

[0012] According to some embodiments of the present disclosure, the second connection portion and the first connection portion are connected to opposite sides of the main body.

[0013] According to some embodiments of the present disclosure, a size of the first connection portion in the first direction is the same as a size of the second connection portion in the first direction.

[0014] A battery shell proposed in an embodiment of the second aspect of the present disclosure includes a plate assembly and the above-mentioned battery cover plate, wherein the battery cover plate is connected to the plate assembly and jointly defines an accommodating space, the second connecting portion and the main body portion are connected to a portion of the plate assembly and form a main shell portion, and the first connecting portion is connected to another portion of the plate assembly and forms a thickness-reduced area, and the dimension of at least a portion of the thickness-reduced area in the first direction is smaller than the dimension of the main shell portion in the first direction.

[0015] According to the battery shell of the embodiment of the present disclosure, the second connecting part and the main body are connected to a part of the plate assembly to form a main shell part, and the first connecting part is connected to another part of the plate assembly to form a thickness-reduced area. The space formed by the thickness difference between the thickness-reduced area and the main shell part can be used to accommodate the pole assembly extending out of the battery shell, so as to make the battery structure compact and increase the space utilization of the battery in the electronic device. In addition, the main body, the first connecting part and the second connecting part of the battery cover plate can form multiple different surfaces of the battery shell, and the battery cover plate can provide more assembly surfaces for the plate assembly to facilitate the assembly of the battery shell.

[0016] According to some embodiments of the present disclosure, the plate assembly includes: a second plate, a third plate and a fourth plate. In the first direction, the end of the first connecting portion away from the main body and the end of the second connecting portion away from the main body are both connected to the second plate. In the second direction, the third plate and the fourth plate are arranged opposite to each other, the third plate is respectively connected to the battery cover and the second plate, and the fourth plate is respectively connected to the battery cover and the second plate. The surface area of ​​the third plate and the surface area of ​​the fourth plate are both smaller than the surface area of ​​the second plate; wherein the second direction is perpendicular to the first direction.

[0017] According to some embodiments of the present disclosure, in the second direction, the third plate is connected to the outer sides of the battery cover and the second plate; or the fourth plate is connected to the outer sides of the battery cover and the second plate; or both the third plate and the fourth plate are connected to the outer sides of the battery cover and the second plate.

[0018] According to some embodiments of the present disclosure, in the first direction, the third plate is clamped between the battery cover and the second plate; or the fourth plate is clamped between the battery cover and the second plate; or both the third plate and the fourth plate are clamped between the battery cover and the second plate.

[0019] According to some embodiments of the present disclosure, the first connecting portion also includes a third plate segment, the second plate segment is connected between the first plate segment and the third plate segment, the second connecting portion includes a connecting plate segment, the connecting plate segment is connected to the main body, and the first plate segment and the third plate segment are both arranged opposite to the connecting plate segment, and the second plate segment is arranged opposite to the second plate body.

[0020] According to some embodiments of the present disclosure, the first connecting portion further includes a first flange, the first flange is connected to the end of the third plate segment away from the second plate segment, and the first flange is at least partially fitted and connected to the second plate body; or the second connecting portion further includes a second flange, the second flange is connected to the end of the connecting plate segment away from the main body, and the second flange is at least partially fitted and connected to the second plate body; or the first connecting portion further includes a first flange, the first flange is connected to the end of the third plate segment away from the second plate segment, and the first flange is at least partially fitted and connected to the second plate body, and the second connecting portion further includes a second flange, the second flange is connected to the end of the connecting plate segment away from the main body, and the second flange is at least partially fitted and connected to the second plate body.

[0021] According to some embodiments of the present disclosure, the battery housing further includes a sealing assembly, the first connecting portion has a liquid injection hole communicating with the accommodating space, and the sealing assembly is used to seal the liquid injection hole.

[0022] According to some embodiments of the present disclosure, the liquid injection hole is provided in the first plate segment.

[0023] According to some embodiments of the present disclosure, the sealing assembly includes a sealing plug, which is at least partially disposed in the liquid injection hole; or the sealing assembly includes a sealing cover, which is connected to the first plate segment on the side of the liquid injection hole facing away from the accommodating space; or the sealing assembly includes a sealing plug and a sealing cover, the sealing plug is at least partially disposed in the liquid injection hole, and the sealing cover is connected to the first plate segment on the side of the liquid injection hole facing away from the accommodating space.

[0024] A battery proposed in an embodiment of the third aspect of the present disclosure includes: a battery shell, the battery shell being the above-mentioned battery shell, the second plate segment being provided with at least one pole hole; a pole core, the pole core being provided in the accommodating space; and a first pole assembly, the first pole assembly being passed through the corresponding pole hole and connected to the pole core.

[0025] According to the battery of the embodiment of the present disclosure, the second connecting part and the main body are connected to a part of the plate assembly to form a main shell part, and the first connecting part is connected to another part of the plate assembly to form a thickness-reduced area. The space formed by the thickness difference between the thickness-reduced area and the main shell part can be used to accommodate the pole assembly extending out of the battery casing, so as to make the structure of the battery compact and increase the space utilization of the battery in the electronic device. In addition, the main body, the first connecting part and the second connecting part of the battery cover can form multiple different surfaces of the battery casing, and the battery cover can provide more assembly surfaces for the plate assembly to facilitate the assembly of the battery.

[0026] According to some embodiments of the present disclosure, the pole core has a first pole lug unit, the first pole assembly includes a first pole and a first insulating member, the first pole is passed through the corresponding pole hole and is connected to the first pole lug unit, and the first insulating member is used to insulate the first pole from the second plate segment.

[0027] According to some embodiments of the present disclosure, the first pole assembly further includes a first connector connected between the first pole and the first tab unit, and the first insulating member is further used to separate the first connector from the second plate segment.

[0028] According to some embodiments of the present disclosure, the battery further includes a second insulating member, which is disposed in the accommodating space and is used to separate the first tab unit from the plate assembly.

[0029] According to some embodiments of the present disclosure, the first tab unit is sandwiched between the second insulating member and the first pole assembly.

[0030] According to some embodiments of the present disclosure, the battery further includes a second pole assembly, the pole core further has a second pole lug unit, the second pole lug unit has electrical properties opposite to those of the first pole lug unit, and the second pole assembly is passed through the corresponding pole hole and connected to the second pole lug unit.

[0031] According to some embodiments of the present disclosure, the battery further includes a third pole assembly, the pole core further includes a third pole lug unit, the third pole lug unit has the same or opposite electrical properties as the first pole lug unit, and the third pole assembly is passed through the corresponding pole hole and connected to the third pole lug unit.

[0032] An electronic device proposed in an embodiment of the fourth aspect of the present disclosure includes the above-mentioned battery.

[0033] According to the electronic device of the embodiment of the present disclosure, the main body, the first connecting part and the second connecting part of the battery cover can form multiple different surfaces of the battery shell. The battery cover can provide more assembly surfaces for the board assembly to facilitate the assembly of the battery. The second connecting part and the main body are connected to a part of the board assembly and form a main shell. The first connecting part is connected to another part of the board assembly and forms a thickness reduction area. The space formed by the thickness difference between the thickness reduction area and the main shell can be used to accommodate the pole assembly extending out of the battery shell, so as to make the battery structure compact, increase the space utilization of the battery in the electronic device, and improve the battery life of the electronic device.

[0034] Additional aspects and advantages of the present disclosure will be given in part in the description that follows and, in part, will be obvious from the description that follows, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a perspective view of a battery according to an embodiment of the present disclosure;

[0036] FIG2 is an exploded view of a battery according to an embodiment of the present disclosure;

[0037] FIG3 is an exploded view of a portion of the structure of a battery according to an embodiment of the present disclosure;

[0038] FIG4 is a top view of a battery according to an embodiment of the present disclosure;

[0039] FIG5 is a cross-sectional view taken along line CC of FIG4 ;

[0040] FIG6 is an enlarged view of FIG5 at point c;

[0041] FIG7 is a schematic diagram of the cooperation between the battery cover, the second plate and the fourth plate according to another embodiment of the present disclosure;

[0042] FIG8 is a schematic diagram of a battery cover and a second plate according to another embodiment of the present disclosure;

[0043] Figure 9 is a greatly enlarged view of Figure 8 at point e;

[0044] FIG10 is an enlarged view of FIG8 at point f;

[0045] FIG11 is a cross-sectional view taken along line AA of FIG4 ;

[0046] FIG12 is an enlarged view of FIG11 at point a;

[0047] FIG13 is a cross-sectional view taken along line BB in FIG4 ;

[0048] FIG14 is an enlarged view of FIG13 at point b;

[0049] FIG15 is a cross-sectional view of FIG4 at DD;

[0050] FIG16 is an enlarged view of FIG15 d.

[0051] Reference Signs: Battery Case 10; Battery Cover 1; Body 11; First Connecting Portion 12; First Plate Segment 121; Second Plate Segment 122; Third Plate Segment 123; First Flanged Edge 124; Second Connecting Portion 13; Connecting Plate Segment 131; Second Flanged Edge 132; Plate Assembly 2; Second Plate 21; Third Plate 22; Fourth Plate 23; Electrode Core 20; Electrode Core Body 201; First Tab Unit 202; Second Tab Unit 203; First Post Assembly 30; First Post 301; First Insulator 302; First Sub-Insulator 3021; ​​Second Sub-Insulator 3022; First Connecting Member 303; Liquid Filling Hole 31; First Post Hole 32; Second Post Hole 33; Sealing Assembly 40; Sealing Plug 401; Sealing Cap 402; Second Insulator 50; Second pole assembly 60 ; second pole 601 ; third insulating member 602 ; third sub-insulating member 6021 ; fourth sub-insulating member 6022 ; second connecting member 603 ; battery 100 . DETAILED DESCRIPTION

[0052] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0053] In the description of the present disclosure, it should be understood that the terms "length", "width", "thickness", "up", "down", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0056] The battery cover 1, the battery housing 10, the battery 100 and the electronic device according to the embodiments of the present disclosure are described in detail below with reference to FIG. 1 to FIG. 16 .

[0057] 1 to 3 , the battery cover 1 according to the embodiment of the first aspect of the present disclosure includes an integrally formed main body portion 11, a first connecting portion 12 and a second connecting portion 13, and the first connecting portion 12 and the second connecting portion 13 are both connected to the main body portion 11 at an angle, that is, the main body portion 11 and at least a portion of the first connecting portion 12 are not coplanar, and the main body portion 11 and at least a portion of the second connecting portion 13 are not coplanar. When the battery cover 1 is used for a battery housing 10, the main body portion 11, the first connecting portion 12 and the second connecting portion 13 of the battery cover 1 can form different surfaces of the battery housing 10, and the main body portion 11, the first connecting portion 12 and the second connecting portion 13 are all suitable for connection with other plates of the battery housing 10, thereby helping to reduce the number of parts of the battery housing 10 and facilitating the assembly of the battery housing 10.

[0058] It should be noted that the battery cover 1 can be integrally formed by bending a metal sheet. When the battery housing 10 is assembled, the battery cover 1 can be used as an installation reference part, and the other plates of the battery housing 10 are positioned and connected to the battery cover 1. Since the battery cover 1 includes a main body portion 11, a first connecting portion 12 and a second connecting portion 13 that are at least partially non-coplanar, the battery cover 1 can provide more dimensional positioning references and assembly surfaces for the other plates of the battery housing 10, thereby reducing the difficulty of assembling the battery housing 10 and improving the assembly accuracy of the battery housing 10.

[0059] At the same time, the first connecting portion 12 includes a first plate segment 121 and a second plate segment 122. The first plate segment 121 is connected to the main body 11 at an angle, and the second plate segment 122 is connected to the first plate segment 121 at an angle. The first plate segment 121 and the second plate segment 122 form a step structure. The first connecting portion 12 is provided with a pole hole, and the pole assembly of the battery 100 can be passed through and fixed in the pole hole. The first connecting portion 12 with a step structure can be recessed into the battery casing 10 to form a thickness reduction area. The space formed by the thickness difference between the thickness reduction area and other areas of the battery casing 10 can be used to accommodate the pole assembly extending out of the battery casing 10, so as to make the structure of the battery 100 compact and increase the space utilization of the battery 100 in the electronic device.

[0060] According to the battery cover 1 of the embodiment of the present disclosure, the battery cover 1 includes an integrally formed main body 11, a first connecting portion 12 and a second connecting portion 13. The first connecting portion 12 and the second connecting portion 13 are both connected to the main body 11 at an angle. The first connecting portion 12 with a stepped structure is also provided with a pole hole to facilitate the assembly of the pole assembly of the battery 100 and increase the space utilization of the battery 100 in the electronic device. At the same time, when the battery cover 1 is used for the battery housing 10, due to the provision of the second connecting portion 13, it can provide more assembly surfaces for other plates of the battery housing 10 together with the first connecting portion 12 and the body 11 to facilitate the assembly of the battery housing 10.

[0061] 1 and 3 , the first plate segment 121 may extend in a direction to reduce the thickness of the battery housing 10, and the second plate segment 122 and the main body 11 may form a height difference in the thickness direction of the battery housing 10. The first plate segment 121 and the second plate segment 122 may be formed into a step structure, and the step structure may be recessed into the battery housing 10 to form a thickness reduction area. The space formed by the thickness difference between the thickness reduction area and other areas of the battery housing 10 may be used to accommodate the pole assembly extending from the battery housing 10, so as to make the structure of the battery 100 compact and increase the space utilization of the battery 100 in the electronic device.

[0062] In some embodiments of the present disclosure, the second connecting portion 13 and the first connecting portion 12 are connected to opposite sides of the main body 11. When the battery cover 1 is formed by bending, the second connecting portion 13 and the first connecting portion 12 located on both sides of the main body 11 can facilitate the processing and manufacturing of the battery cover 1. At the same time, when the battery shell 10 is assembled, the relative second connecting portion 13 and the first connecting portion 12 can provide more stable support for other plates of the battery shell 10, so as to facilitate the assembly of the battery shell 10.

[0063] In some other embodiments of the present disclosure, the second connection portion 13 and the first connection portion 12 are connected to two adjacent sides of the main body 11 to facilitate assembly of the battery housing 10 .

[0064] In some embodiments of the present disclosure, the size of the first connecting portion 12 in the first direction is the same as the size of the second connecting portion 13 in the first direction, wherein the first direction may be the thickness direction of the battery housing 10 in Figure 1, and when the main body 11 is constructed as a flat plate structure, the first direction may be the normal direction of the main body 11, that is, in the first direction, the end of the first connecting portion 12 away from the main body 11 and the end of the second connecting portion 13 away from the main body 11 are flush, and the end of the first connecting portion 12 away from the main body 11 and the end of the second connecting portion 13 away from the main body 11 are both connected to the board assembly 2. In other words, the end of the first connecting portion 12 away from the main body 11 and the end of the second connecting portion 13 away from the main body 11 can be located on the same horizontal plane, so as to facilitate the assembly of the battery housing 10, make the structure of the battery housing 10 regular, reduce the inclined surfaces on the battery housing 10, and facilitate the arrangement of the battery 100 in the electronic device.

[0065] 1 to 3 , a battery housing 10 according to an embodiment of the second aspect of the present disclosure includes a plate assembly 2 and a battery cover plate 1 of the above-described embodiment. The battery cover plate 1 is connected to the plate assembly 2 and together define a receiving space. The battery cover plate 1 can provide the plate assembly 2 with more assembly surfaces to facilitate the assembly of the battery housing 10. At the same time, the second connecting portion 13 and the main body 11 are connected to a portion of the plate assembly 2 and form a main housing portion. The first connecting portion 12 is connected to another portion of the plate assembly 2 and forms a thickness-reduced area. The dimension of at least a portion of the thickness-reduced area in the first direction is smaller than the dimension of the main housing portion in the first direction. The first direction may be the thickness direction of the battery housing 10 in FIG. 1 , that is, the first connecting portion 12 may be recessed in a direction of reducing the thickness of the battery housing 10 so that the battery housing 10 forms a main housing portion and a thickness-reduced area with different thicknesses.

[0066] Among them: the battery shell 10 can be made of metal materials such as stainless steel, nickel alloy, chromium alloy or aluminum alloy, the battery cover 1 is connected to the plate assembly 2 and jointly defines a accommodating space, which can be used to accommodate the pole core 20 of the battery 100, and the battery shell 10 can seal and protect the pole core 20 on the outside of the pole core 20.

[0067] The pole core 20 arranged in the accommodating space has a first pole lug unit 202. The first pole column assembly 30 of the battery 100 can pass through the first connecting portion 12 and be connected to the first pole lug unit 202. A portion of the first pole column assembly 30 is located in the accommodating space and is electrically connected to the first pole lug unit 202. Another portion of the first pole column assembly 30 extends out of the battery shell 10 and can form an electrode of the battery 100. The portion of the first pole column assembly 30 extending out of the battery shell 10 can make full use of the space formed by the thickness difference between the thickness thinning area and the main shell, so as to make the structure of the battery 100 compact and increase the space utilization of the battery 100 in the electronic device.

[0068] According to the battery shell 10 of the embodiment of the present disclosure, the second connecting part 13 and the main body 11 are connected to a part of the plate assembly 2 to form a main shell part, and the first connecting part 12 is connected to another part of the plate assembly 2 to form a thickness-reduced area. The space formed by the thickness difference between the thickness-reduced area and the main shell part can be used to accommodate the pole assembly extending out of the battery shell 10, so as to make the structure of the battery 100 compact and increase the space utilization of the battery 100 in the electronic device. In addition, the main body 11, the first connecting part 12 and the second connecting part 13 of the battery cover 1 can form multiple different surfaces of the battery shell 10, and the battery cover 1 can provide more assembly surfaces for the plate assembly 2 to facilitate the assembly of the battery shell 10.

[0069] In some embodiments of the present disclosure, as shown in Figures 1 to 3, the plate assembly 2 includes: a second plate 21, a third plate 22, and a fourth plate 23. In a first direction, the end of the first connecting portion 12 away from the main body 11 and the end of the second connecting portion 13 away from the main body 11 are both connected to the second plate 21. The second plate 21 can be constructed as a flat plate. The second plate 21 has a simple structure and is easy to process. Moreover, since the end of the first connecting portion 12 away from the main body 11 and the end of the second connecting portion 13 away from the main body 11 are flush, the first connecting portion 12 and the second connecting portion 13 of the battery cover plate 1 can be well fitted with the second plate 21, thereby facilitating the assembly of the battery housing 10. The first direction can be the thickness direction of the battery housing 10. In this embodiment, the first connecting portion 12 and the second connecting portion 13 of the battery cover plate 1 can be fixedly connected to the second plate 21 by welding or bonding.

[0070] In the second direction, the third plate 22 and the fourth plate 23 are arranged opposite to each other, the third plate 22 is respectively connected to the battery cover 1 and the second plate 21, and the fourth plate 23 is respectively connected to the battery cover 1 and the second plate 21, the battery cover 1, the second plate 21, the third plate 22 and the fourth plate 23 can jointly define a accommodating space, wherein the second direction is perpendicular to the first direction, the second direction can be the width direction of the battery casing 10, the third plate 22 can be respectively connected to the battery cover 1 and the second plate 21 on one side in the width direction of the battery casing 10, that is, the third plate 22 is connected to the main body 11, the first connecting portion 12 and the second connecting portion 13 of the battery cover 1, and the third plate 22 is also connected to the second plate 21, and the fourth plate 23 can be respectively connected to the battery cover 1 and the second plate 21 on the other side in the width direction of the battery casing 10, that is The fourth plate 23 is connected to the main body 11, the first connecting portion 12 and the second connecting portion 13 of the battery cover 1, and the fourth plate 23 is also connected to the second plate 21. In this embodiment, the third plate 22 and the fourth plate 23 can be fixedly connected to the battery cover 1 and the second plate 21 by welding or bonding. In addition, the connection method of the third plate 22 and the battery cover 1, the connection method of the third plate 22 and the second plate 21, the connection method of the fourth plate 23 and the battery cover 1, and the connection method of the fourth plate 23 and the second plate 21 may be consistent or inconsistent.

[0071] In the third direction, the first connecting portion 12 and the second connecting portion 13 can be connected to both sides of the main body 11. The third direction, the second direction, and the first direction are perpendicular to each other. The third direction can be the length direction of the battery casing 10 to ensure the span of the first connecting portion 12 and the second connecting portion 13 in the length direction of the battery casing 10, which facilitates the assembly of the main body 11 and the second plate 21.

[0072] In some embodiments of the present disclosure, the surface area of ​​the third plate 22 and the surface area of ​​the fourth plate 23 are both smaller than the surface area of ​​the second plate 21, that is, the third plate 22 and the fourth plate 23 do not belong to the larger surface of the battery casing 10, and the pole hole is opened in the second plate segment 122 of the second plate 21 to avoid the influence of the smaller size of the third plate 22 or the fourth plate 23 on the size of the pole hole, so that the size of the pole hole is not limited by the size of the battery casing 10 in the first direction (thickness direction), so as to facilitate the assembly of the pole assembly and improve the manufacturability of the battery 100.

[0073] In some embodiments of the present disclosure, as shown in Figures 4 to 6, in the second direction, the third plate 22 is connected to the outer sides of the battery cover 1 and the second plate 21, or the fourth plate 23 is connected to the outer sides of the battery cover 1 and the second plate 21, or both the third plate 22 and the fourth plate 23 are connected to the outer sides of the battery cover 1 and the second plate 21, to facilitate the assembly of the battery housing 10.

[0074] In one embodiment of the present disclosure, in the second direction, the third plate 22 is connected to the outer sides of the battery cover 1 and the second plate 21, that is, the end surface of the third plate 22 facing the fourth plate 23 is fitly connected to the battery cover 1 and the second plate 21, and the third plate 22 does not affect the fitting relationship between the battery cover 1 and the second plate 21 in the thickness direction of the battery casing 10. When assembling the battery casing 10, the battery cover 1 and the second plate 21 can be connected together to form a subassembly, and then the third plate 22 can be connected to the outer sides of the battery cover 1 and the second plate 21, which is conducive to reducing the difficulty of assembling the battery casing 10 and improving the assembly efficiency of the battery casing 10.

[0075] In another embodiment of the present disclosure, in the second direction, the fourth plate 23 is connected to the outer sides of the battery cover 1 and the second plate 21, that is, the end surface of the fourth plate 23 facing the third plate 22 is fitly connected to the battery cover 1 and the second plate 21, and the fourth plate 23 does not affect the fitting relationship between the battery cover 1 and the second plate 21 in the thickness direction of the battery casing 10. When assembling the battery casing 10, the battery cover 1 and the second plate 21 can be connected together to form a sub-assembly, and then the fourth plate 23 can be connected to the outer sides of the battery cover 1 and the second plate 21, which is conducive to reducing the difficulty of assembling the battery casing 10 and improving the assembly efficiency of the battery casing 10.

[0076] In another embodiment of the present disclosure, as shown in Figures 5 and 6, in the second direction, the third plate 22 and the fourth plate 23 are both connected to the outer sides of the battery cover 1 and the second plate 21, and the third plate 22 and the fourth plate 23 do not affect the matching relationship between the battery cover 1 and the second plate 21 in the thickness direction of the battery shell 10. When the battery shell 10 is assembled, the battery cover 1 and the second plate 21 can be connected together to form a sub-assembly, and then the third plate 22 and the fourth plate 23 can be connected to the outer sides of the battery cover 1 and the second plate 21, which is conducive to reducing the difficulty of assembling the battery shell 10 and improving the assembly efficiency of the battery shell 10.

[0077] In other embodiments of the present disclosure, in the first direction, the third plate 22 is clamped between the battery cover 1 and the second plate 21, or the fourth plate 23 is clamped between the battery cover 1 and the second plate 21, or both the third plate 22 and the fourth plate 23 are clamped between the battery cover 1 and the second plate 21, thereby facilitating improving the structural strength of the battery casing 10.

[0078] In one embodiment of the present disclosure, in a first direction, the third plate 22 is sandwiched between the battery cover 1 and the second plate 21, that is, the third plate 22 can stop at the battery cover 1 and the second plate 21 on opposite sides of the thickness direction of the battery case 10, and the third plate 22 can support the battery cover 1 and the second plate 21 in the thickness direction of the battery case 10, thereby facilitating the improvement of the structural strength of the battery case 10 and improving the reliability and safety of the battery case 10.

[0079] In another embodiment of the present disclosure, as shown in Figure 7, in the first direction, the fourth plate 23 is clamped between the battery cover 1 and the second plate 21, that is, the fourth plate 23 can be stopped at the battery cover 1 and the second plate 21 on opposite sides of the thickness direction of the battery shell 10. The fourth plate 23 can support the battery cover 1 and the second plate 21 in the thickness direction of the battery shell 10, thereby helping to improve the structural strength of the battery shell 10 and improve the reliability and safety of the battery shell 10.

[0080] In another embodiment of the present disclosure, in the first direction, the third plate 22 and the fourth plate 23 are both sandwiched between the battery cover 1 and the second plate 21. The third plate 22 and the fourth plate 23 can support the battery cover 1 and the second plate 21 in the thickness direction of the battery case 10, thereby helping to improve the structural strength of the battery case 10 and improve the reliability and safety of the battery case 10.

[0081] It should be noted that the thickness of the third plate 22 may be greater than the thickness of the battery cover 1 to increase the contact area between the third plate 22 and the battery cover 1 and improve the connection strength between the third plate 22 and the battery cover 1. The thickness of the third plate 22 may be greater than the thickness of the second plate 21 to increase the contact area between the third plate 22 and the second plate 21 and improve the connection strength between the third plate 22 and the second plate 21. The thickness of the fourth plate 23 may be greater than the thickness of the battery cover 1 to increase the contact area between the fourth plate 23 and the battery cover 1 and improve the connection strength between the fourth plate 23 and the battery cover 1. The thickness of the fourth plate 23 may be greater than the thickness of the second plate 21 to increase the contact area between the fourth plate 23 and the second plate 21 and improve the connection strength between the fourth plate 23 and the second plate 21.

[0082] In addition, when the thicknesses of various parts of the battery cover 1 are inconsistent, the thickness of the third plate 22 can be greater than the thickness of the main body 11, and the thickness of the fourth plate 23 can be greater than the thickness of the main body 11, so as to ensure the structural strength of the battery shell 10 while increasing the internal accommodation space of the battery shell 10 and improving the capacity of the battery 100 when the size of the battery 100 is constant.

[0083] In some embodiments of the present disclosure, referring to Figures 1 to 3, the first connecting portion 12 further includes a third plate segment 123, that is, the first connecting portion 12 includes a first plate segment 121, a second plate segment 122, and a third plate segment 123, the first plate segment 121 is connected to the main body 11, the second plate segment 122 is connected between the first plate segment 121 and the third plate segment 123, the second connecting portion 13 includes a connecting plate segment 131, the connecting plate segment 131 is connected to the main body 11, and the first plate segment 121 and the third plate segment 123 are connected. 23 are arranged opposite to the connecting plate segment 131, the second plate segment 122 is arranged opposite to the second plate body 21, the first plate segment 121 can extend in the direction of reducing the thickness of the battery shell 10, and the second plate segment 122 and the main body 11 form a height difference in the thickness direction of the battery shell 10. The portion of the first pole assembly 30 extending outside the battery shell 10 can make full use of the space formed by the thickness difference between the thickness thinning area and the main shell part, so as to make the structure of the battery 100 compact and increase the space utilization of the battery 100 in the electronic device.

[0084] 1-3 , in the thickness direction of the battery casing 10 , the end of the third plate segment 123 away from the main body 11 is flush with the end of the connecting plate segment 131 away from the main body 11 , and the end of the third plate segment 123 away from the main body 11 and the end of the connecting plate segment 131 away from the main body 11 are both connected to the second plate body 21 .

[0085] In some embodiments of the present disclosure, the battery cover 1 can be a blank plate formed by multiple bendings, that is, the first connecting portion 12 and the second connecting portion 13 of the battery cover 1 can be formed by bending, wherein the third plate segment 123 and the second plate segment 122 are connected in an arcuate transition, and the radius of the fillet at the arcuate transition connection is R1, R1 ≥ 0.2 mm. The second plate segment 122 and the first plate segment 121 are connected in an arcuate transition, and the radius of the fillet at the arcuate transition connection is R2, R2 ≥ 0.2 mm. The first plate segment 121 and the main body 11 are connected in an arcuate transition, and the radius of the fillet at the arcuate transition connection is R3, R3 ≥ 0.2 mm. The arcuate transition connection can avoid stress concentration during bending.

[0086] In some embodiments of the present disclosure, the thickness of the battery cover 1 can also be adjusted by polishing or other methods to increase the capacity of the accommodation space and improve the energy density of the battery 100. The thickness of the connecting plate segment 131 is T1, and the thickness of the main body 11 is T2. T1 and T2 can satisfy: T1 ≥ T2. While ensuring sufficient contact area between the connecting plate segment 131 and the second plate 21, the thickness of the main body 11 can also be reduced, thereby facilitating the improvement of the energy density of the battery 100. The thickness of the third plate segment 123 is T3. T2 and T3 can satisfy: T3 ≥ T2. This ensures the contact area between the third plate segment 123 and the second plate 21, facilitating the connection of the battery cover 1 to the second plate 21. The thickness of the second plate segment 122 is T4, and T2 and T4 can satisfy: T4 ≥ T2, so as to increase the mechanical strength of the second plate segment 122. When the first pole assembly 30 and the second plate segment 122 are insulated and fixedly connected, the second plate segment 122 is not easily deformed, so as to improve the reliability and sealing of the connection between the first pole assembly 30 and the second plate segment 122.

[0087] In some embodiments of the present disclosure, as shown in Figures 1 and 2, the third plate 22 is vertically connected to the battery cover 1 and the second plate 21, respectively, and the fourth plate 23 is vertically connected to the battery cover 1 and the second plate 21, respectively, so that the external structure of the battery casing 10 is regular, the inclined surface on the battery casing 10 is reduced, so as to facilitate the arrangement of the battery 100 in the electronic device, increase the volume of the accommodating space, reduce space waste, and thus improve the energy density of the battery 100.

[0088] In some embodiments of the present disclosure, referring to Figures 8 to 10, the first connecting portion 12 further includes a first flange 124, the first flange 124 is connected to the end of the third plate segment 123 away from the second plate segment 122, and the first flange 124 is at least partially fitted and connected to the second plate body 21, or the second connecting portion 13 further includes a second flange 132, the second flange 132 is connected to the end of the connecting plate segment 131 away from the main body 11, and the second flange 132 is at least partially fitted and connected to the second plate body 21, or the first flange 132 is connected to the end of the connecting plate segment 131 away from the main body 11, and the second flange 132 is at least partially fitted and connected to the second plate body 21, or the second flange 132 is connected to the second plate body 21. A connecting portion 12 also includes a first flange 124, which is connected to the end of the third plate segment 123 away from the second plate segment 122, and the first flange 124 is at least partially fitted and connected to the second plate body 21, and the second connecting portion 13 also includes a second flange 132, which is connected to the end of the connecting plate segment 131 away from the main body 11, and the second flange 132 is at least partially fitted and connected to the second plate body 21, thereby facilitating the improvement of the reliability of the connection between the battery cover 1 and the second plate body 21.

[0089] In one embodiment of the present disclosure, the first connection portion 12 also includes a first flange 124, which is connected to an end of the third plate segment 123 away from the second plate segment 122, and the first flange 124 is at least partially fitted and connected to the second plate body 21. The first flange 124 can increase the contact area between the first connection portion 12 and the second plate body 21, thereby facilitating improving the reliability of the connection between the first connection portion 12 and the second plate body 21.

[0090] In another embodiment of the present disclosure, the second connection portion 13 also includes a second flange 132, which is connected to the end of the connecting plate section 131 away from the main body portion 11. The second flange 132 is at least partially fitted and connected to the second plate body 21. The second flange 132 can increase the contact area between the second connection portion 13 and the second plate body 21, thereby facilitating improving the reliability of the connection between the second connection portion 13 and the second plate body 21.

[0091] In another embodiment of the present disclosure, as shown in Figures 8-10, the first connecting portion 12 also includes a first flange 124, which is connected to the end of the third plate segment 123 away from the second plate segment 122, and the first flange 124 is at least partially fitted and connected to the second plate body 21, and the second connecting portion 13 also includes a second flange 132, which is connected to the end of the connecting plate segment 131 away from the main body 11, and the second flange 132 is at least partially fitted and connected to the second plate body 21. The first flange 124 can increase the contact area between the first connecting portion 12 and the second plate body 21, which is beneficial to improving the reliability of the connection between the first connecting portion 12 and the second plate body 21, and the second flange 132 can increase the contact area between the second connecting portion 13 and the second plate body 21, which is beneficial to improving the reliability of the connection between the second connecting portion 13 and the second plate body 21.

[0092] In some embodiments of the present disclosure, as shown in Figures 8 and 9, in the first direction, i.e., the length of the battery casing 10, the length of the first flange 124 is W1, and W1 satisfies the relationship: 0.5mm≤W1≤4mm. It is understood that when W1 is less than 0.5mm, the length of the first flange 124 is small, making it difficult to machine, and the contact area between the first flange 124 and the second plate 21 is also small. The first flange 124 has little effect on the reliability of the connection between the first connecting portion 12 and the second plate 21. When W1 is greater than 4mm, the length of the first flange 124 is large, and the first flange 124 occupies a large space, which may reduce the energy density of the battery 100. In this embodiment, W1 can be 0.5mm, 2mm, or 4mm to ensure sufficient contact area between the first flange 124 and the second plate 21 to facilitate connection between the two. The first flange 124 occupies a small space, which has a minimal impact on the energy density of the battery 100.

[0093] In some embodiments of the present disclosure, as shown in Figures 8 and 10, the length of the second flange 132 in the longitudinal direction of the battery case 10 is W2, and W2 satisfies the relationship: 0.5mm≤W2≤4mm. It can be understood that when W2 is less than 0.5mm, the length of the second flange 132 is small, the second flange 132 is difficult to process, and the contact area between the second flange 132 and the second plate 21 is also small. The second flange 132 has little effect on the reliability of the connection between the second connecting portion 13 and the second plate 21. When W2 is greater than 4mm, the length of the second flange 132 is large, the second flange 132 occupies a large space, and the energy density of the battery 100 is reduced. In this embodiment, W2 can be 0.5mm, 2mm, or 4mm to ensure sufficient contact area between the second flange 132 and the second plate 21 to facilitate connection between the two. The second flange 132 occupies a small space, which has little impact on the energy density of the battery 100.

[0094] In some embodiments of the present disclosure, referring to Figures 1 to 3, the battery case 10 further includes a sealing assembly 40, the first connecting portion 12 has an injection hole 31 connected to the accommodating space, and the sealing assembly 40 is used to seal the injection hole 31. When the battery 100 is manufactured, the electrolyte can be injected into the accommodating space through the injection hole 31. After the electrolyte injection is completed, the injection hole 31 can be blocked by the sealing assembly 40 to seal the injection hole 31 and prevent the electrolyte in the accommodating space from flowing out of the battery case 10.

[0095] As shown in Figure 2, the pole core 20 includes a pole core body 201 and a first pole lug unit 202 and a second pole lug unit 203 extending from the pole core body 201. The electrical properties of the first pole lug unit 202 and the second pole lug unit 203 are opposite. The first pole lug unit 202 can be electrically connected to the first pole column assembly 30 to form the positive electrode of the battery 100, the second pole lug unit 203 can be connected to the second pole column assembly 60 to form the negative electrode of the battery 100, or the second pole lug unit 203 is electrically connected to the battery case 10 to form the negative electrode of the battery 100.

[0096] The electrode core body 201 includes a positive electrode sheet, a diaphragm and a negative electrode sheet. The diaphragm is arranged between the positive electrode sheet and the negative electrode sheet. After the electrode core 20 is prepared and formed by a winding or lamination process, the two side surfaces of the electrode core body 201 in the length direction of the battery shell 10 have a stacked structure with gaps formed by the positive electrode sheet, the diaphragm and the negative electrode sheet.

[0097] In some embodiments of the present disclosure, as shown in FIG3 , an injection hole 31 is provided in the first plate segment 121 , and the surface of the first plate segment 121 facing the accommodating space may be opposite to the laminated structure of the pole core body 201 , so that when the electrolyte is injected into the accommodating space through the injection hole 31 , the electrolyte may directly penetrate into the interior of the pole core body 201 through the gaps between the positive electrode sheet, the diaphragm and the negative electrode sheet, thereby facilitating improving the infiltration efficiency of the electrolyte into the pole core 20 and shortening the injection process time of the battery 100 .

[0098] In some embodiments of the present disclosure, as shown in Figures 2 and 3, the sealing assembly 40 includes a sealing plug 401, which is at least partially disposed in the injection hole 31, or the sealing assembly 40 includes a sealing cover 402, which is connected to the first plate segment 121 on the side of the injection hole 31 away from the accommodating space, or the sealing assembly 40 includes a sealing plug 401 and a sealing cover 402, which is at least partially disposed in the injection hole 31, and the sealing cover 402 is connected to the first plate segment 121 on the side of the injection hole 31 away from the accommodating space, so as to ensure the sealing effect of the sealing assembly 40 on the injection hole 31.

[0099] In one embodiment of the present disclosure, the sealing assembly 40 includes a sealing plug 401, which is at least partially disposed in the injection hole 31. After the electrolyte injection is completed, the sealing plug 401 is inserted into the injection hole 31 to seal the injection hole 31, thereby achieving sealing of the injection hole 31.

[0100] In another embodiment of the present disclosure, the sealing assembly 40 includes a sealing cover 402, which is connected to the first plate segment 121 on the side of the liquid injection hole 31 facing away from the accommodation space. After the electrolyte is injected, the sealing cover 402 can be fixedly connected to the first plate segment 121 and cover the liquid injection hole 31, thereby sealing the liquid injection hole 31. In this embodiment, the sealing cover 402 and the first plate segment 121 can be fixed by welding or bonding.

[0101] In another embodiment of the present disclosure, as shown in Figure 3, the sealing assembly 40 includes a sealing plug 401 and a sealing cover 402. The sealing plug 401 is at least partially disposed in the liquid injection hole 31, and the sealing cover 402 is connected to the first plate segment 121 on the side of the liquid injection hole 31 away from the accommodating space. After the electrolyte injection is completed, the sealing plug 401 can be first inserted into the liquid injection hole 31 to seal the liquid injection hole 31, and then the sealing cover 402 is fixedly connected to the first plate segment 121. At this time, the sealing cover 402 can be pressed on the outside of the sealing plug 401. During the process of pressing the sealing cover 402 on the sealing plug 401, the sealing plug 401 will be squeezed to improve the sealing effect of the sealing plug 401. At the same time, the setting of the sealing plug 401 and the sealing cover 402 can also improve the reliability of the sealing assembly 40. When the sealing plug 401 ages and fails, the sealing cover 402 can still ensure the sealing of the liquid injection hole 31.

[0102] In some embodiments of the present disclosure, the sealing plug 401 includes a connected sealing main body and a limiting portion. The sealing main body is suitable for interference fit with the injection hole 31, and the limiting portion is suitable for fitting with the outer side surface of the first plate segment 121. The diameter of the limiting portion is larger than the aperture of the injection hole 31. The limiting portion can prevent the sealing plug 401 from falling into the accommodating space through the injection hole 31.

[0103] 1-3 , a battery 100 according to an embodiment of the third aspect of the present disclosure includes: a battery shell 10, a pole core 20 and a first pole assembly 30. The battery shell 10 is the battery shell 10 of the above embodiment. The second plate segment 122 is provided with at least one pole hole. The pole core 20 is provided in the accommodating space. The first pole assembly 30 is passed through the pole hole corresponding thereto and is connected to the pole core 20. That is, a portion of the first pole assembly 30 is located in the accommodating space and is electrically connected to the pole core 20, and another portion of the first pole assembly 30 extends out of the battery shell 10 and can form an electrode of the battery 100. The portion of the first pole assembly 30 extending out of the battery shell 10 can make full use of the space formed by the thickness difference between the thickness thinning area and the main shell portion, so as to make the structure of the battery 100 compact and increase the space utilization of the battery 100 in the electronic device.

[0104] According to the battery 100 of the embodiment of the present disclosure, the second connecting portion 13 and the main body 11 are connected to a part of the plate assembly 2 to form a main shell portion, and the first connecting portion 12 is connected to another part of the plate assembly 2 to form a thickness-reduced area. The space formed by the thickness difference between the thickness-reduced area and the main shell portion can be used to accommodate the pole assembly extending out of the battery shell 10, so as to make the structure of the battery 100 compact and increase the space utilization of the battery 100 in the electronic device. In addition, the main body 11, the first connecting portion 12 and the second connecting portion 13 of the battery cover 1 can form multiple different surfaces of the battery shell 10, and the battery cover 1 can provide more assembly surfaces for the plate assembly 2 to facilitate the assembly of the battery 100.

[0105] In some embodiments of the present disclosure, as shown in Figures 1 to 4 and 11 to 16, the pole core 20 has a first pole lug unit 202, and the first pole column assembly 30 includes a first pole column 301 and a first insulating member 302. The first pole column 301 is penetrated by a pole column hole corresponding to it and is connected to the first pole lug unit 202. The first insulating member 302 is used to separate the first pole column 301 from the second plate segment 122. That is, the first pole column 301 is electrically connected to the first pole lug unit 202, and the first pole column 301 is insulated from the battery case 10 through the first insulating member 302 to avoid a short circuit in the battery 100.

[0106] It should be noted that in the relevant technology, the poles are usually riveted to the side walls extending along the thickness direction of the battery shell. However, for some thinner batteries, the side walls may not have a large enough area to fix the poles, or it is too difficult to rivet the poles on the side walls, resulting in a low battery yield and increased production costs.

[0107] According to the battery 100 of the embodiment of the present disclosure, as shown in Figures 1 to 4, the second plate segment 122 is arranged opposite to the second plate body 21, and the second plate segment 122 can extend along the length and width directions of the battery shell 10. The size of the second plate segment 122 is not limited by the thickness of the battery 100. At least one pole hole can be opened on the second plate segment 122, and the at least one pole hole includes a first pole hole 32. The first pole hole 32 corresponds to the position of the first pole 301. The first pole 301 can pass through the first pole hole 32 and be fixed to the second plate segment 122. For a thinner battery 100, the second plate segment 122 can still ensure that it has a sufficient size for the first pole 301 to be riveted and fixed, which is conducive to reducing the difficulty of installing the first pole 301, improving the yield of the battery 100, and reducing the production cost of the battery 100.

[0108] In this embodiment, the height of the first pole 301 outside the battery shell 10 is less than or equal to the height difference between the second plate segment 122 and the main body 11 in the thickness direction of the battery shell 10. That is, in the thickness direction of the battery shell 10, the upper end surface of the first pole assembly 30 exposed to the second plate segment 122 will not exceed the upper end surface of the main body 11, so as to improve the space utilization of the battery 100, that is, to improve the energy density of the battery 100 when the size of the battery 100 is constant.

[0109] In some embodiments of the present disclosure, as shown in Figures 3, 4 and 11 to 16, the first pole assembly 30 also includes a first connector 303, which is connected between the first pole 301 and the first pole lug unit 202. The first insulating member 302 is also used to separate the first connector 303 from the second plate segment 122 to avoid a short circuit in the battery 100, wherein the first connector 303 can be a conductive metal gasket, such as an aluminum gasket, and the first pole 301 can be electrically connected to the first pole lug unit 202 through the first connector 303 within the accommodating space. The first connector 303 can increase the contact area between the first pole assembly 30 and the first pole lug unit 202, thereby facilitating improving the reliability of the connection between the first pole 301 and the second pole lug unit 203.

[0110] It can be understood that since the end face area of ​​the first pole 301 in the accommodating space is small, if the first pole 301 is directly fixed to the first pole lug unit 202, the contact area between the first pole 301 and the first pole lug unit 202 is small, and the connection reliability is poor. Therefore, the first pole 301 can be connected to the second pole lug unit 203 through the first connecting member 303 to increase the contact area between the first pole assembly 30 and the first pole lug unit 202, thereby improving the stability of the connection between the first pole assembly 30 and the first pole lug unit 202.

[0111] In this embodiment, the first connector 303 and the first tab unit 202 can be electrically connected together by welding or bonding. The first connector 303 can increase the contact area between the first electrode assembly 30 and the first tab unit 202 .

[0112] In some embodiments of the present disclosure, the first pole lug unit 202 may include multiple pole lugs, and the multiple pole lugs may be gathered and pre-welded to form the first pole lug unit 202, and then the first pole lug unit 202 is electrically connected to the first pole 301 or the first connector 303. Alternatively, the multiple pole lugs may be gathered and directly electrically connected to the first pole 301 or the first connector 303. Alternatively, the multiple pole lugs may be gathered and connected to an adapter, and then the adapter is electrically connected to the first pole 301 or the first connector 303.

[0113] 3 , 4 , and 11 - 16 , the first insulating member 302 includes a first sub-insulator 3021 and a second sub-insulator 3022 . The first sub-insulator 3021 , the second sub-insulator 3022 , and the first connector 303 are all provided with through holes suitable for the first pole 301 to pass through. The first pole 301 can pass through the first sub-insulator 3021 , the second plate segment 122 , the second sub-insulator 3022 , and the first connector 303 in sequence. The end of the first pole 301 located in the accommodating space can be riveted to the first connector 303 by extrusion to electrically connect the first pole 301 to the first connector 303 . The first sub-insulator 3021 can separate the first pole 301 from the second plate segment 122 , and the second sub-insulator 3022 can separate the first connector 303 from the second plate segment 122 to prevent a short circuit in the battery 100 .

[0114] In some embodiments of the present disclosure, referring to Figures 3, 4, and 11-16, the battery 100 further includes a second insulating member 50, which is disposed in the accommodating space. The second insulating member 50 is used to separate the first tab unit 202 from the plate assembly 2 to insulate the first tab unit 202 from the battery housing 10, thereby preventing the battery 100 from short-circuiting.

[0115] 12 , the second insulating member 50 is used to separate the first tab unit 202 from the second plate 21 of the plate assembly 2. The second insulating member 50 is disposed on a side of the first tab unit 202 away from the first pole assembly 30. The second insulating member 50 can be fixedly disposed on a side of the second plate 21 close to the first tab unit 202. The second insulating member 50 can prevent the first tab unit 202 from being electrically connected to the second plate 21. In this embodiment, the second insulating member 50 can be configured as insulating tape or an insulating coating.

[0116] In some embodiments of the present disclosure, as shown in Figure 12, the first pole lug unit 202 is clamped between the second insulating member 50 and the first pole assembly 30, that is, in the thickness direction of the battery shell 10, one side of the first pole lug unit 202 is in contact with the second insulating member 50, and the other side of the first pole lug unit 202 is in contact with the first pole 301 or the first connecting member 303 of the first pole assembly 30, thereby improving the structural compactness of the battery 100, avoiding space waste, and preventing the first pole lug unit 202 from shaking during subsequent use of the battery 100.

[0117] It can be understood that the first pole ear unit 202 can be clamped between the second insulating member 50 and the first pole assembly 30 by reducing the gap between the second plate segment 122 and the second plate body 21 in the thickness direction of the battery shell 10. As a result, the height difference between the second plate segment 122 and the second plate body 21 in the thickness direction of the battery shell 10 can be increased, and the thickness of the battery shell 10 in the thickness thinning area can be further reduced. When the battery 100 is subsequently PACK assembled, the protective plate can be placed in the space formed by the thickness difference between the thickness thinning area and the main shell part, that is, the protective plate can be placed on the step surface formed by the first plate segment 121 and the second plate segment 122, so that the space utilization rate of the electronic device at the battery 100 is higher.

[0118] In some embodiments of the present disclosure, the pole core 20 further has a second pole lug unit 203, and the electrical properties of the second pole lug unit 203 are opposite to those of the first pole lug unit 202. The second pole lug unit 203 is connected to the battery shell 10 so that the battery shell 10 forms an electrode with electrical properties opposite to the first pole column assembly 30, wherein the battery shell 10 is a conductive shell, for example, the first pole column assembly 30 forms the positive pole of the battery 100, and the battery shell 10 forms the negative pole of the battery 100.

[0119] In other embodiments of the present disclosure, as shown in Figures 2 and 3, the battery 100 also includes a second pole assembly 60, and the pole core 20 also has a second pole lug unit 203. The electrical properties of the second pole lug unit 203 are opposite to those of the first pole lug unit 202. The second pole assembly 60 is penetrated by a pole hole corresponding to it and is connected to the second pole lug unit 203. The second pole assembly 60 can form an electrode with opposite electrical properties with the first pole assembly 30. For example, the first pole assembly 30 forms the positive pole of the battery 100, and the second pole assembly 60 forms the negative pole of the battery 100. The portion of the second pole assembly 60 extending outside the battery shell 10 can make full use of the space formed by the thickness difference between the thickness thinning area and the main shell portion, so as to make the structure of the battery 100 compact and increase the space utilization of the battery 100 in the electronic device.

[0120] As shown in Figures 2 and 3, the second pole assembly 60 can be arranged side by side with the first pole assembly 30 on the second plate segment 122. The second plate segment 122 is provided with a plurality of pole holes, including a first pole hole 32 and a second pole hole 33. The first pole hole 32 corresponds to the position of the first pole 301, and the second pole hole 33 corresponds to the second pole 601. The second pole 601 can pass through the second pole hole 33 and be fixed to the second plate segment 122. The second pole assembly 60 can have the same structure as the first pole assembly 30. In some embodiments, the second pole assembly 60 includes a second pole 601 and a third insulating member 602. The second pole 601 passes through the second plate segment 122 and is connected to the second tab unit 203. The third insulating member 602 is used to separate the second pole 601 from the second plate segment 122. The second pole assembly 60 also includes a second connector 603, which is connected between the second pole 601 and the second tab unit 203. The third insulating member 602 is also used to separate the second connector 603 from the second plate segment 122. The third insulating member 602 includes a third sub-insulator 6021 and a fourth sub-insulator 6022. The second pole 601 can pass through the third sub-insulator 6021, the second plate segment 122, and the fourth sub-insulator 6022 in sequence before being riveted to the second connector 603. The third sub-insulator 6021 can separate the second pole 601 from the second plate segment 122, and the fourth sub-insulator 6022 can separate the second connector 603 from the second plate segment 122. It should be noted that the second insulating member 50 can also extend along the width direction of the battery housing 10 so that the second insulating member 50 is sandwiched between the second tab unit 203 and the second plate body 21. The second insulating member 50 can be used to separate the second tab unit 203 from the second plate body 21.

[0121] In some embodiments of the present disclosure, the battery 100 further includes a third electrode assembly, and the electrode core 20 further includes a third electrode tab unit. The third electrode tab unit has the same or opposite electrical properties as the first electrode tab unit 202. The third electrode assembly is provided with a corresponding electrode hole and connected to the third electrode tab unit. The provision of the third electrode assembly and the third electrode tab unit can improve the charging speed of the battery 100. During the charging and discharging process of the battery 100, the first electrode tab unit 202, the second electrode tab unit 203, and the third electrode tab unit can disperse heat to avoid heat concentration in the battery 100, thereby improving the safety of the battery 100. In this embodiment, the structure of the third electrode assembly is the same as that of the first electrode assembly 30.

[0122] An electronic device according to another embodiment of the present disclosure includes the battery 100 of the above embodiment, wherein the electronic device may be a mobile phone, a camera, a tablet computer, etc.

[0123] According to the electronic device of the embodiment of the present disclosure, the main body 11, the first connecting part 12 and the second connecting part 13 of the battery cover 1 can form multiple different surfaces of the battery shell 10. The battery cover 1 can provide more assembly surfaces for the board assembly 2 to facilitate the assembly of the battery 100. The second connecting part 13 and the main body 11 are connected to a part of the board assembly 2 and form a main shell. The first connecting part 12 is connected to another part of the board assembly 2 and forms a thickness reduction area. The space formed by the thickness difference between the thickness reduction area and the main shell can be used to accommodate the pole assembly extending out of the battery shell 10, so as to make the structure of the battery 100 compact, increase the space utilization of the battery 100 in the electronic device, and improve the battery life of the electronic device.

[0124] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0125] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A battery cover, wherein: The battery cover plate (1) comprises an integrally formed main body (11), a first connecting portion (12) and a second connecting portion (13); the first connecting portion (12) and the second connecting portion (13) are both connected to the main body (11) at an angle; the first connecting portion (12) comprises a first plate segment (121) and a second plate segment (122); the first plate segment (121) is connected to the main body (11) at an angle; the second plate segment (122) is connected to the first plate segment (121) at an angle; the first plate segment (121) and the second plate segment (122) form a step structure; and the second plate segment (122) is provided with a pole hole.

2. The battery cover according to claim 1, wherein: The second connecting portion (13) and the first connecting portion (12) are connected to two opposite sides of the main body portion (11).

3. The battery cover according to claim 1 or 2, wherein: The size of the first connecting portion (12) in the first direction is the same as the size of the second connecting portion (13) in the first direction.

4. A battery casing, wherein: It comprises a plate assembly (2) and a battery cover plate (1) according to any one of claims 1 to 3, wherein the battery cover plate (1) is connected to the plate assembly (2) and jointly defines a accommodating space, the second connecting portion (13) and the main body (11) are connected to a portion of the plate assembly (2) and form a main shell portion, the first connecting portion (12) is connected to another portion of the plate assembly (2) and forms a thickness reduction zone, and at least a portion of the thickness reduction zone has a smaller dimension in a first direction than the dimension of the main shell portion in the first direction.

5. The battery case according to claim 4, wherein: The plate assembly (2) comprises: a second plate (21), a third plate (22) and a fourth plate (23); in the first direction, one end of the first connecting portion (12) away from the main body (11) and one end of the second connecting portion (13) away from the main body (11) are both connected to the second plate (21); in the second direction, the third plate (22) and the fourth plate (23) are arranged opposite to each other; the third plate (22) is respectively connected to the battery cover (1) and the second plate (21); the fourth plate (23) is respectively connected to the battery cover (1) and the second plate (21); the surface area of ​​the third plate (22) and the surface area of ​​the fourth plate (23) are both smaller than the surface area of ​​the second plate (21); The second direction is perpendicular to the first direction.

6. The battery case according to claim 5, wherein: In the second direction, the third plate (22) is connected to the outer sides of the battery cover (1) and the second plate (21); or the fourth plate (23) is connected to the outer sides of the battery cover (1) and the second plate (21); Or the third plate body (22) and the fourth plate body (23) are both connected to the outer sides of the battery cover plate (1) and the second plate body (21).

7. The battery case according to claim 5, wherein: In the first direction, the third plate (22) is sandwiched between the battery cover (1) and the second plate (21); or the fourth plate (23) is sandwiched between the battery cover (1) and the second plate (21); Or the third plate (22) and the fourth plate (23) are both sandwiched between the battery cover (1) and the second plate (21).

8. The battery casing according to any one of claims 5 to 7, wherein: The first connecting portion (12) further comprises a third plate segment (123), the second plate segment (122) is connected between the first plate segment (121) and the third plate segment (123), the second connecting portion (13) comprises a connecting plate segment (131), the connecting plate segment (131) is connected to the main body (11), and the first plate segment (121) and the third plate segment (123) are both arranged opposite to the connecting plate segment (131), and the second plate segment (122) is arranged opposite to the second plate body (21).

9. The battery casing according to claim 8, wherein: The first connecting portion (12) further comprises a first flange (124), the first flange (124) being connected to an end of the third plate segment (123) away from the second plate segment (122), and the first flange (124) being at least partially fitted and connected to the second plate body (21); Or the second connecting portion (13) further comprises a second flange (132), the second flange (132) being connected to an end of the connecting plate section (131) away from the main body (11), and the second flange (132) being at least partially fitted and connected to the second plate body (21); Or the first connecting portion (12) further comprises a first flange (124), the first flange (124) being connected to an end of the third plate segment (123) away from the second plate segment (122), the first flange (124) being at least partially fitted and connected to the second plate body (21), and the second connecting portion (13) further comprises a second flange (132), the second flange (132) being connected to an end of the connecting plate segment (131) away from the main body (11), the second flange (132) being at least partially fitted and connected to the second plate body (21).

10. The battery casing according to claim 8, wherein: It also comprises a sealing assembly (40), wherein the first connecting portion (12) has a liquid injection hole (31) communicating with the accommodating space, and the sealing assembly (40) is used for sealing the liquid injection hole (31).

11. The battery casing according to claim 10, wherein: The liquid injection hole (31) is provided in the first plate section (121).

12. The battery casing according to claim 11, wherein: The sealing assembly (40) comprises a sealing plug (401), wherein the sealing plug (401) is at least partially disposed in the liquid injection hole (31); Or the sealing assembly (40) comprises a sealing cover (402), and the sealing cover (402) is connected to the first plate section (121) on a side of the liquid injection hole (31) facing away from the accommodating space; Or the sealing assembly (40) comprises a sealing plug (401) and a sealing cover (402), wherein the sealing plug (401) is at least partially disposed in the liquid injection hole (31), and the sealing cover (402) is connected to the first plate section (121) on a side of the liquid injection hole (31) facing away from the accommodating space.

13. A battery, wherein: include: A battery housing (10), wherein the battery housing (10) is the battery housing (10) according to any one of claims 4 to 12, and the second plate segment (122) is provided with at least one of the pole holes; A pole core (20), the pole core (20) being arranged in the accommodation space; A first pole component (30), wherein the first pole component (30) is penetrated by the pole hole corresponding thereto and is connected to the pole core (20).

14. The battery according to claim 13, wherein The pole core (20) has a first pole lug unit (202); the first pole column assembly (30) comprises a first pole column (301) and a first insulating member (302); the first pole column (301) is provided with the pole column hole corresponding thereto and is connected to the first pole lug unit (202); the first insulating member (302) is used for insulating and connecting the first pole column (301) to the second plate segment (122).

15. The battery according to claim 14, wherein The first pole assembly (30) further comprises a first connecting member (303), wherein the first connecting member (303) is connected between the first pole (301) and the first pole lug unit (202), and the first insulating member (302) is also used to separate the first connecting member (303) from the second plate segment (122).

16. The battery according to claim 14 or 15, wherein: It also includes a second insulating member (50), which is arranged in the accommodating space, and the second insulating member (50) is used to separate the first pole lug unit (202) from the plate assembly (2).

17. The battery according to claim 16, wherein: The first pole lug unit (202) is sandwiched between the second insulating member (50) and the first pole assembly (30).

18. The battery according to any one of claims 14 to 17, wherein It also includes a second pole assembly (60), the pole core (20) also having a second pole lug unit (203), the second pole lug unit (203) having electrical properties opposite to those of the first pole lug unit (202), and the second pole assembly (60) is penetrated by the pole hole corresponding thereto and connected to the second pole lug unit (203).

19. The battery according to claim 18, wherein It also includes a third pole assembly, the pole core (20) also having a third pole lug unit, the third pole lug unit having the same or opposite electrical properties as the first pole lug unit (202), the third pole assembly being penetrated by the corresponding pole hole and connected to the third pole lug unit.

20. An electronic device, wherein: Comprising a battery according to any one of claims 13-19.