Battery and electronic equipment

Abstract

The utility model relates to the technical field of battery packaging, in particular to a battery and electronic equipment.The battery comprises a shell assembly and a battery module, the shell assembly comprises a shell body and a limiting part, the shell body is provided with a containing space capable of containing the battery module, and the limiting part is arranged in the containing space and fixedly connected with the shell body; the first side wall of the shell body in the first direction and the limiting part are arranged at an interval in the first direction. When the battery module is located in the accommodating space, the two ends of the battery module in the first direction are limited by the first side wall and the limiting part respectively, so that the first battery protection plate can apply pressure pointing to the battery cell body to the top sealing edge. According to the battery and the electronic equipment provided by the invention, a process of fixing the top sealing edge and the battery protection plate through a bonding substance is replaced, multiple dispensing / rubberizing procedures in the battery packaging process are saved, the packaging process is simplified, the material consumption is reduced, and the stability of the battery packaging structure is improved.

Description

Technical Field

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

[0002] At present, in the battery packaging scheme, conventional design schemes usually use glue or double-sided tape to fix the top edge of the battery module. At the same time, the battery protection board (Protection Circuit Module, referred to as PCM) of the battery module is fixed by double-sided tape and / or adhesive tape. For example, the schemes recorded in Chinese patent documents CN219123421U and CN217606991U.

[0003] However, the top edge seal of the battery cell and the battery protection plate are fixed by glue and tape. On the one hand, multiple dispensing / sticking steps are required during the battery packaging process. The battery packaging process is complicated and consumes a large amount of materials such as glue, double-sided tape and tape. On the second hand, structures such as glue, double-sided tape and tape will increase the volume of the battery, which is not conducive to increasing the battery capacity. On the third hand, the battery using the above-mentioned glue, double-sided tape and tape is very likely to have problems such as edge debonding due to aging, affecting the stability of the battery packaging structure. Utility Model Content

[0004] The purpose of the present application is to provide a battery and an electronic device, so as to solve to a certain extent the problems existing in the prior art that during the battery packaging process, multiple glue dispensing / sticking steps need to be performed, the battery packaging process is complicated, and a large amount of materials such as glue, double-sided tape and adhesive tape need to be consumed; structures such as glue, double-sided tape and adhesive tape need to occupy space inside the battery, which is not conducive to improving the energy of the battery; as the battery uses the above-mentioned glue, double-sided tape and adhesive tape, it is very easy to cause problems such as edge delamination due to aging, affecting the technical problem of the stability of the setting of the battery protection plate.

[0005] According to a first aspect of the present application, a battery is provided, comprising a shell assembly and a battery module, wherein the battery module comprises a battery cell body and a first battery protection plate electrically connected to a tab of the battery cell body, wherein a top sealing edge of the battery cell body is bent toward a top surface of the battery cell body and at the top surface, and the first battery protection plate is arranged on a surface of the top sealing edge that is away from the battery cell body in a first direction;

[0006] The shell assembly includes a shell body and a limiting portion, the shell body has a storage space capable of storing the battery module, the limiting portion is disposed in the storage space and is fixedly connected to the shell body, and a first side wall of the shell body in the first direction and the limiting portion are spaced apart along the first direction;

[0007] When the battery module is in the accommodating space, two ends of the battery module in the first direction are respectively limited by the first side wall and the limiting portion, so that the first battery protection plate can apply pressure to the top sealing edge directed toward the battery cell body.

[0008] Preferably, the limiting portion includes a first limiting portion and a second limiting portion fixedly connected to each other, the first limiting portion extends along the second direction, one end of the first limiting portion in the second direction is fixedly connected to the shell body, the second limiting portion is arranged at the other end of the first limiting portion, and protrudes relative to the first limiting portion toward the side where the first side wall is located, and the second direction intersects with the first direction;

[0009] When the battery module is in the accommodating space, the first battery protection plate is engaged with the limiting portion.

[0010] Preferably, the shell body comprises a first shell portion and a second shell portion which are detachably connected to each other, and the first shell portion and the second shell portion surround and form the accommodating space.

[0011] Preferably, the first shell portion and the second shell portion are both capable of being engaged with each other along a second direction, and the second direction is perpendicular to the first direction.

[0012] Preferably, the first shell portion comprises a first shell panel, the first side wall and two surrounding walls, the surrounding walls extend along the first direction, the two surrounding walls are arranged at two ends of the first shell panel in a third direction, the two ends of the first side wall in the third direction are respectively connected to the ends of the two surrounding walls, and the third direction is perpendicular to the second direction;

[0013] The second shell portion includes a second shell panel and two docking walls, the docking walls extend along the first direction, the two docking walls are arranged at two ends of the second shell panel in the third direction, and when the first shell portion and the second shell portion are buckled with each other, the two docking walls are respectively docked with the two surrounding walls;

[0014] There are multiple limiting portions, and the multiple limiting portions are fixed to the first shell panel at intervals along the third direction.

[0015] Preferably, the first side wall further comprises a limiting convex rib, and the limiting convex rib protrudes from the first side wall toward the side where the limiting portion is located;

[0016] Both ends of the battery module in the first direction are respectively limited by the limiting rib and the limiting portion.

[0017] Preferably, the shell body further includes a second side wall, and the second side wall and the first side wall are arranged facing each other in the first direction;

[0018] The limiting portion is disposed between the first side wall and the second side wall to divide the accommodation space into a first space and a second space, wherein the first space is used to accommodate the battery module.

[0019] Preferably, it also includes a second battery protection plate, which is arranged in the second space, and the second battery protection plate is connected to the battery module and / or the first battery protection plate.

[0020] Preferably, the battery satisfies -0.5mm≤L-(a+b)≤0.5mm, wherein L is the minimum length of the first space in the first direction, a is the distance of the battery cell body in the first direction, and b is the length of the first battery protection plate in the first direction.

[0021] According to a second aspect of the present application, an electronic device is provided, comprising a battery as described in any of the above technical solutions, and thus having all the beneficial technical effects of the battery, which will not be described in detail herein.

[0022] Compared with the prior art, the beneficial effects of this application are:

[0023] The battery provided in the present application is provided with a first side wall and a limiting portion arranged at intervals along a first direction on the shell assembly, so that when the battery module is in the accommodating space of the shell assembly, the two ends of the battery module in the first direction (i.e., the end of the battery cell body facing away from the first battery protection plate and the end of the first battery protection plate facing away from the battery cell body) can be respectively limited by the first side wall and the limiting portion, so that the first battery protection plate can apply pressure directed to the battery cell body to the top seal, and under the action of the pressure, the top seal is effectively fixed, and the above-mentioned first side wall and the limiting portion both effectively limit the positions of the battery protection plate and the battery body, thereby replacing the process of fixing the top seal and the battery protection plate by adhesive materials such as glue, adhesive tape and double-sided tape in the prior art. Compared with the existing technology, the invention saves multiple glue dispensing / sticking steps in the battery packaging process, simplifies the packaging process, saves the consumption of materials such as glue, double-sided tape and adhesive tape, reduces the battery packaging cost, and avoids the problems of the above-mentioned glue, double-sided tape and adhesive tape peeling off due to aging as the battery is used, thereby improving the stability of the battery packaging structure.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the isometric structure of a battery provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the explosion structure of a battery provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the axonometric structure of the first shell provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the axonometric structure of the second shell provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of a cross-sectional structure of a battery provided in an embodiment of the present application obtained by cross-cutting a plane determined along a first direction and a second direction.

[0031] Reference numerals:

[0032] 110-first shell; 111-first side wall; 1111-limiting convex rib; 112-second side wall; 113-first shell panel; 114-enclosing wall; 115-butting convex rib; 116-slot; 120-second shell; 121-second shell panel; 122-butting wall; 123-claw; 211-cell body; 212-ear; 213-top edge seal; 220-first battery protection board; 230-second battery protection board; 240-connecting board; 300-limiting part; 310-first limiting part; 320-second limiting part;

[0033] F1-first direction; F2-second direction; F3-third direction. DETAILED DESCRIPTION

[0034] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0035] The components of the embodiments of the present application generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0036] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] Refer to the following Figures 1 to 5 A battery and an electronic device according to some embodiments of the present application are described.

[0040] See also Figures 1 to 5 As shown, an embodiment of the first aspect of the present application provides a battery, including a shell assembly and a battery module, the battery module including a battery body 211 and a first battery protection plate 220 electrically connected to the tab of the battery body 211, the top sealing edge of the battery body is bent toward the top surface of the battery body and is bent at the top surface, and the first battery protection plate 220 is arranged on the side of the top sealing edge 213 away from the battery body 211 in the first direction F1. The shell assembly includes a shell body and a limiting portion 300, the shell body has a receiving space that can accommodate the battery module, the limiting portion 300 is arranged in the receiving space, and is fixedly connected to the shell body, and the first side wall 111 of the shell body in the first direction F1 and the limiting portion 300 are spaced apart along the first direction F1. When the battery module is in the receiving space, the two ends of the battery module in the first direction F1 are respectively limited by the first side wall 111 and the limiting portion 300, so that the first battery protection plate 220 can apply pressure to the top sealing edge 213 directed to the battery body 211.

[0041] According to the battery provided by the above technical features, by arranging the first side wall 111 and the limiting portion 300 arranged at intervals along the first direction F1 on the shell assembly, when the battery module is in the accommodating space of the shell assembly, the two ends of the battery module in the first direction F1 (i.e., the end of the battery cell body 211 facing away from the first battery protection plate 220 and the end of the first battery protection plate 220 facing away from the battery cell body 211) can be respectively limited by the first side wall 111 and the limiting portion 300, so that the first battery protection plate 220 can apply pressure directed to the battery cell body 211 to the top sealing edge 213, and under the action of the pressure, the top sealing edge 213 is effectively fixed, and the above-mentioned first side wall 111 and the limiting portion 300 both effectively limit the positions of the battery protection plate and the battery body, thereby replacing the process of fixing the top sealing edge 213 and the battery protection plate by adhesive materials such as glue, adhesive tape and double-sided tape in the prior art. Compared with the existing technology, the invention saves multiple glue dispensing / sticking steps in the battery packaging process, simplifies the packaging process, saves the consumption of materials such as glue, double-sided tape and adhesive tape, reduces the battery packaging cost, and avoids the problems of the above-mentioned glue, double-sided tape and adhesive tape peeling off due to aging as the battery is used, thereby improving the stability of the battery packaging structure.

[0042] like Figures 1 to 5 As shown, F1 shown in the figure may be an example of the first direction, F2 shown in the figure may be an example of the second direction, and F3 shown in the figure may be an example of the third direction, wherein any two of the first direction F1, the second direction F2 and the third direction F3 are arranged crosswise. Preferably, any two of the first direction F1, the second direction F2 and the third direction F3 are arranged vertically.

[0043] It should be noted that the battery cell body 211 may include a tab 212 , and the first battery protection plate 220 may be connected to the battery body via the tab 212 .

[0044] Preferably, if Figure 1 , Figure 3 and Figure 5 As shown, the above-mentioned limiting portion 300 may include a first limiting portion 310, which extends along the second direction F2, and one end of the first limiting portion 310 in the second direction F2 is fixedly connected to the shell body, so that through the joint action of the first limiting portion 310 and the first side wall 111, the relative positions of the battery cell body 211 and the first battery panel in the first direction F1 can be effectively limited.

[0045] Preferably, if Figure 1The example in which the first battery protection plate 220 is disposed on the side where the limiting portion 300 is located when the battery module is in the accommodation space is shown, that is, the limiting portion 300 limits the end of the first battery protection plate 220 that is opposite to the battery cell body 211, and the first side wall 111 limits the end of the battery cell body 211 that is opposite to the first battery protection plate 220. However, it is not limited thereto, and when the battery module is in the accommodation space, the first battery protection plate 220 may also be disposed on the side where the first side wall 111 is located.

[0046] Preferably, if Figure 1 , Figure 3 and Figure 5 As shown, the above-mentioned limiting portion 300 may also include a second limiting portion 320 fixedly connected to the first limiting portion 310, and the second limiting portion 320 is arranged at the other end of the first limiting portion 310, and protrudes relative to the first limiting portion 310 to the side where the first side wall 111 is located. In this way, when the first battery protection plate 220 is arranged in the accommodating space, the first battery protection plate 220 can be clamped between the first shell panel 113 and the second limiting portion 320, thereby effectively limiting the position of the first battery protection plate 220 in the second direction F2, so as to improve the setting stability of the first battery protection plate 220, and avoid the relative displacement between the first battery protection plate 220 and the battery cell body 211 when the battery vibrates / collides, resulting in poor contact between the first battery protection plate 220 and the battery cell body 211.

[0047] Alternatively, if Figure 5 As shown, from one end of the second limiting portion 320 close to the first limiting portion 310 to the other end, the size of the second limiting portion 320 in the second direction F2 gradually decreases, effectively improving the deformation sensitivity of the end of the second limiting portion 320 away from the first limiting portion 310, so as to facilitate the installation of the first battery protection plate 220.

[0048] Preferably, the first limiting portion 310 and the second limiting portion 320 may be integrally formed to improve the connection stability between the first limiting portion 310 and the second limiting portion 320 .

[0049] Alternatively, if Figure 3 As shown, the first limiting portion 310 may be in the shape of a flat strip. On the one hand, the first limiting portion 310 may better adapt to the shape of the battery module so as to facilitate abutment and fit with the first battery protection plate 220. On the other hand, the first limiting portion 310 in the shape of a flat strip may effectively reduce the shielding of the first limiting portion 310 on the first battery protection plate 220 so as to facilitate external connection of the first battery protection plate 220.

[0050] Preferably, if Figure 3As shown, there may be a plurality of the limiting portions 300 , and the plurality of limiting portions 300 are spaced apart on the shell body along the third direction F3 to improve the limiting stability of the limiting portions 300 on the battery module.

[0051] Preferably, if Figure 2 As shown, the shell body may include a first shell portion 110 and a second shell portion 120 detachably connected to each other, and the first shell portion 110 and the second shell portion 120 are buckled together to form a receiving space to facilitate the battery module to be assembled into the shell body.

[0052] like Figures 1 to 5 As shown, the first shell portion 110 and the second shell portion 120 are buckled with each other along the second direction F2 to increase the opening area at the joint between the first shell portion 110 and the second shell portion 120 to further facilitate battery assembly.

[0053] However, the present invention is not limited thereto, as long as the shell assembly can limit the two ends of the battery module in the first direction F1, the first shell portion 110 and the second shell portion 120 may also be buckled with each other along the first direction F1.

[0054] Preferably, if Figure 3 As shown, the first shell portion 110 may include a first shell panel 113, a first side wall 111 and two surrounding walls 114, the surrounding walls 114 extend along the first direction F1, the two surrounding walls 114 are arranged at both ends of the first shell panel 113 in the third direction F3, and the two ends of the first side wall 111 in the third direction F3 are respectively connected to the end portions of the two surrounding walls 114, so that the first shell portion 110 encloses part of the above-mentioned accommodating space.

[0055] Preferably, the first shell portion 110 may further include a second wall surface. When the first shell portion 110 and the second shell portion 120 are buckled with each other along the second direction F2, the second side wall 112 and the first side wall 111 are disposed facing each other in the first direction F1.

[0056] Preferably, the first shell panel 113 , the first side wall 111 , the second side wall 112 , the surrounding wall 114 and the limiting portion 300 may be integrally formed.

[0057] Correspondingly, if Figure 4As shown, the second shell portion 120 may include a second shell panel 121 and two docking walls 122, the docking walls 122 extending along the first direction F1, and the two docking walls 122 are arranged at both ends of the second shell panel 121 in the third direction F3, and when the first shell portion 110 and the second shell portion 120 are buckled with each other, the two docking walls 122 are respectively docked with the two surrounding walls 114, so that the second shell portion 120 is surrounded to form another part of the above-mentioned accommodation space. Similarly, the above-mentioned second shell panel 121 and the docking wall 122 can be integrally formed.

[0058] Alternatively, if Figure 3 As shown, the shell body may further include a slot 116 and a claw 123. The slot 116 may be respectively arranged on the inner sides of the first side wall 111, the second side wall 112 and the surrounding wall 114. The claw 123 may be respectively arranged on the inner sides of the two ends of the docking wall 122 and the second shell portion 120 in the first direction F1. The number of the slots 116 and the claws 123 are equal and correspond one to one. The first shell portion 110 and the second shell portion 120 are snapped together through the snap connection of the slots 116 and the claws 123.

[0059] Optionally, not shown in the figures, the above-mentioned slots can be respectively arranged on the inner sides of both ends of the above-mentioned docking wall and the second shell portion in the first direction F1, and the claws can be respectively arranged on the inner sides of the above-mentioned first side wall, the second side wall and the surrounding wall.

[0060] Preferably, if Figure 3 As shown, the first side wall 111 may also include a limiting convex rib 1111, which protrudes from the first side wall 111 to the side where the limiting portion 300 is located. The two ends of the battery module in the first direction F1 are respectively limited by the limiting rib 1111 and the limiting portion 300, so that, on the one hand, the shell body can be better adapted to the size of the battery cell body 211; on the other hand, the strength of the first side wall 111 is effectively improved, thereby improving the limiting stability of the first side wall 111, and preventing the first side wall 111 from deforming when subjected to the abutting pressure of the battery module.

[0061] Preferably, if Figure 3 As shown, the limiting rib 1111 can be integrally formed with the first side wall 111 .

[0062] Preferably, if Figure 3 As shown, the number of the above-mentioned limiting ribs 1111 can be multiple, and the multiple limiting ribs 1111 are arranged at intervals along the third direction F3.

[0063] Furthermore, if Figure 3As shown, the first housing portion 110 may further include an abutting rib 115 disposed on the inner side of the surrounding wall 114 and extending along the first direction F1. When the battery module is disposed in the accommodating space, the abutting rib 115 is disposed at both ends of the battery cell body 211 in the third direction F3 and abuts against the battery cell body 211 to define the position of the battery cell body 211 in the third direction F3, further improving the setting stability of the battery module in the accommodating space.

[0064] In an embodiment, preferably, as Figures 1 to 3 shown, the limiting portion 300 is disposed between the first side wall 111 and the second side wall 112 to divide the accommodating space into a first space and a second space. Among them, the first space can be used to accommodate the battery module, and the second space can be used to arrange the circuits and devices for external connection of the battery module.

[0065] Preferably, as Figure 1 and Figure 2 shown, the battery may further include a second battery protection board 230 disposed in the second space. The second battery protection board 230 is respectively connected to the battery module and / or the first battery protection board 220 to expand the first battery protection board 220, enabling the battery module to connect more components.

[0066] Preferably, as Figure 1 and Figure 2 shown, the second battery protection board 230 may be in a "C" shape, that is, the second battery protection board 230 may include a first portion extending along the third direction F3 and two second portions extending along the first direction F1. The two second portions are respectively disposed at both ends of the first portion in the third direction F3. In this way, the second battery protection board 230 can be attached to the second side wall 112 via the first portion, and the second battery protection board 230 can abut against the battery cell body 211 via the end of the second portion背离 the first portion, thereby improving the setting stability of the second battery protection board 230 in the second space.

[0067] Preferably, as Figure 1 and Figure 2 shown, the battery may further include a connecting board 240. The first battery protection board 220 and the second battery protection board 230 are electrically connected via the connecting board 240.

[0068] Preferably, the first battery protection board 220 and the second battery protection board 230 may both be printed circuit boards (i.e., hard boards) to improve the setting stability of the first battery protection board 220 and the second battery protection board 230 in the accommodating space.

[0069] Optionally, the connecting plate 240 may be a flexible circuit board to reduce the processing accuracy of the connecting plate 240 , the first battery protection plate 220 and the second battery protection plate 230 .

[0070] In an embodiment, preferably, the above-mentioned battery satisfies the formula -0.5mm≤L-(a+b)≤0.5mm, wherein L is the minimum distance of the first space in the first direction F1, a is the length of the battery cell body 211 in the first direction F1 (it should be noted that a is the distance between the two end faces of the battery cell body 211 in the first direction, that is, the distance of the portion of the battery cell body 211 not including the top seal 213), and b is the length of the first battery protection plate 220 in the first direction F1.

[0071] It should be noted that the minimum distance of the first space in the first direction F1 can be understood as the distance between the limiting rib 1111 and the first limiting portion 310 in the first direction F1.

[0072] Specifically, when -0.5mm≤L-(a+b)<0, it can be understood that the first side wall 111 and the limiting portion 300 are respectively abutted against the two ends of the battery module in the first direction F1, and the first side wall 111 and the limiting portion 300 respectively apply a certain abutting pressure to the two ends of the battery module in the first direction F1.

[0073] When L-(a+b)=0, it can be understood that the first side wall 111 and the limiting portion 300 are respectively in contact with both ends of the battery module in the first direction F1 and are in a critical state of assembly tightness, with no force or a small force.

[0074] When 0<L-(a+b)≤0.5mm, it can be understood that a gap is formed between at least one of the first side wall 111 and the limiting portion 300 and the battery module, but the size of the gap is less than or equal to 0.5mm, that is, the size of the gap is smaller than the width of the top sealing edge 213, and thus the first battery protection plate 220 can limit the top sealing edge 213 to prevent the top sealing edge 213 from flipping over.

[0075] The embodiment of the second aspect of the present application further provides an electronic device, comprising the battery described in any of the above embodiments, and thus having all the beneficial technical effects of the battery, which will not be described in detail herein.

[0076] Preferably, the shell assembly may be a housing of the electronic device.

[0077] Optionally, the electronic device may be a mobile phone, a camera, a tablet computer, a mobile power source or other electronic device.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery, characterized in that: The invention comprises a shell assembly and a battery module, wherein the battery module comprises a battery cell body and a first battery protection plate electrically connected to a tab of the battery cell body, a top sealing edge of the battery cell body is bent toward a top surface of the battery cell body and at the top surface, and the first battery protection plate is arranged on a surface of the top sealing edge that is away from the battery cell body in a first direction; The shell assembly includes a shell body and a limiting portion, the shell body has a storage space capable of storing the battery module, the limiting portion is disposed in the storage space and is fixedly connected to the shell body, and a first side wall of the shell body in the first direction and the limiting portion are spaced apart along the first direction; When the battery module is in the accommodating space, two ends of the battery module in the first direction are respectively limited by the first side wall and the limiting portion, so that the first battery protection plate can apply pressure to the top sealing edge directed toward the battery cell body.

2. The battery according to claim 1, characterized in that The limiting portion includes a first limiting portion and a second limiting portion fixedly connected to each other, the first limiting portion extends along a second direction, one end of the first limiting portion in the second direction is fixedly connected to the shell body, the second limiting portion is arranged at the other end of the first limiting portion, and protrudes relative to the first limiting portion toward the side where the first side wall is located, and the second direction intersects with the first direction; When the battery module is in the accommodating space, the first battery protection plate is engaged with the limiting portion.

3. The battery according to claim 1, characterized in that The shell body includes a first shell portion and a second shell portion which are detachably connected to each other, and the first shell portion and the second shell portion surround and form the accommodating space.

4. The battery according to claim 3, characterized in that The first shell portion and the second shell portion can be engaged with each other along a second direction, and the second direction is perpendicular to the first direction.

5. The battery according to claim 4, characterized in that The first shell portion includes a first shell panel, the first side wall and two surrounding walls, the surrounding walls extend along the first direction, the two surrounding walls are arranged at two ends of the first shell panel in a third direction, the two ends of the first side wall in the third direction are respectively connected to the ends of the two surrounding walls, and the third direction is perpendicular to the second direction; The second shell portion includes a second shell panel and two docking walls, the docking walls extend along the first direction, the two docking walls are arranged at two ends of the second shell panel in the third direction, and when the first shell portion and the second shell portion are buckled with each other, the two docking walls are respectively docked with the two surrounding walls; There are multiple limiting portions, and the multiple limiting portions are fixed to the first shell panel at intervals along the third direction.

6. The battery according to claim 1, characterized in that The first side wall further includes a limiting convex rib, which protrudes from the first side wall toward the side where the limiting portion is located; Both ends of the battery module in the first direction are respectively limited by the limiting rib and the limiting portion.

7. The battery according to any one of claims 1 to 6, characterized in that The shell body further includes a second side wall, wherein the second side wall and the first side wall are arranged facing each other in the first direction; The limiting portion is disposed between the first side wall and the second side wall to divide the accommodation space into a first space and a second space, wherein the first space is used to accommodate the battery module.

8. The battery according to claim 7, characterized in that It also includes a second battery protection plate, which is arranged in the second space, and the second battery protection plate is connected to the battery module and / or the first battery protection plate.

9. The battery according to claim 7, characterized in that The battery satisfies -0.5mm≤L-(a+b)≤0.5mm, wherein L is the minimum distance of the first space in the first direction, a is the length of the battery cell body in the first direction, and b is the length of the first battery protection plate in the first direction.

10. An electronic device, characterized in that: A battery comprising the battery according to any one of claims 1 to 9.

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