Battery and battery pack

Abstract

The utility model provides a battery and a battery pack, and relates to the technical field of batteries, the battery comprises a protection plate, a mounting structure is arranged on the protection plate and electrically connected with the protection plate, the thickness of the mounting structure is larger than that of the protection plate, a battery cell is provided with tabs, and a connecting structure is detachably connected with the mounting structure. The connecting structure is used for pressing the tabs on the mounting structure and electrically connecting the tabs with the mounting structure. According to the battery provided by the invention, the problem of insufficient welding or partial welding easily occurring between the tabs and the protection plate can be avoided, disassembly maintenance and replacement between the battery cell and the protection plate can be facilitated, disassembly and recovery of the battery cell are also facilitated, and environmental protection is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a battery and a battery pack. Background Art

[0002] A battery can provide electrical energy for electrical devices, especially for portable electronic digital products such as mobile phones and laptops. A battery generally includes a battery cell, a protection board, and a housing. The battery cell and the protection board are arranged in the housing, and the tab on the battery cell is connected to the protection board by welding.

[0003] However, the method of welding the tab to the protection board is not conducive to the disassembly, repair, and replacement between the battery cell and the protection board, and there are prone to problems such as poor welding or offset welding between the tab and the protection board. Utility Model Content

[0004] Embodiments of this application provide a battery and a battery pack to solve the technical problems that the method of welding the tab to the protection board is not conducive to the disassembly, repair, and replacement between the battery cell and the protection board, and there are prone to problems such as poor welding or offset welding between the tab and the protection board.

[0005] To achieve the above object, embodiments of this application provide the following technical solutions:

[0006] A first aspect of embodiments of this application provides a battery, which includes:

[0007] A protection board;

[0008] An installation structure, arranged on the protection board and electrically connected to the protection board, the thickness of the installation structure being greater than the thickness of the protection board;

[0009] A battery cell with tabs;

[0010] A connection structure, detachably connected to the installation structure, the connection structure being used to press the tab against the installation structure and electrically connect the tab to the installation structure.

[0011] Based on the above technical solutions, this application can be further improved as follows.

[0012] In a possible implementation, the installation structure includes an installation part;

[0013] The protection board has a through hole, the installation part passes through the through hole, and the installation part is detachably connected to the connection structure;

[0014] In the thickness direction of the protection board, the height of the installation part is greater than the thickness of the protection board.

[0015] In a possible implementation, the installation structure further includes an installation plate;

[0016] The mounting plate is connected to one end of the mounting portion facing the tab, and the mounting plate is used for electrical connection with the surface of the protection plate facing the tab;

[0017] The connecting structure passes through the mounting plate and is detachably connected to the mounting portion, and the tab is pressed against the surface of the mounting plate facing away from the protection plate.

[0018] In a possible implementation manner, the mounting structure further includes a limiting structure;

[0019] The limiting structure is arranged on the outer side wall of the mounting portion, and the protection plate is provided with a limiting hole that cooperates with the limiting structure;

[0020] When the mounting portion is installed in the through hole, the limiting structure is installed in the limiting hole, and the limiting structure is used to limit the rotation of the mounting structure relative to the through hole.

[0021] In a possible implementation manner, the connecting structure is an insulating member;

[0022] Moreover, the insulating member is a plastic insulating member.

[0023] In a possible implementation manner, the mounting structure has a mounting hole;

[0024] The connecting structure includes:

[0025] A connecting portion that passes through the tab and is used for detachably connecting with the mounting hole;

[0026] A pressing portion that is arranged on the side of the connecting portion facing away from the protection plate, and the pressing portion is used to press the tab against the surface of the mounting structure facing away from the protection plate.

[0027] In a possible implementation manner, when the connecting structure and the mounting structure are in a locked state, the connecting portion passes through the tab and is installed in the mounting hole, and the pressing portion presses the tab against the mounting structure;

[0028] When the connecting structure and the mounting structure are in an unlocked state, at least a part of the connecting portion disengages from the mounting hole, and the tab disengages from the connecting portion.

[0029] In a possible implementation manner, the tab has a notch;

[0030] When the connecting structure and the mounting structure are in an unlocked state, a part of the connecting portion disengages from the mounting hole, so that the distance between the pressing portion and the mounting structure is greater than the thickness of the tab.

[0031] In a possible implementation, when the connection structure and the mounting structure are in an unlocked state, the distance between the pressing portion and the mounting structure is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

[0032] In a possible implementation, an anti-oxidation layer covers the outer surface of the mounting structure.

[0033] A second aspect of the embodiments of the present application provides a battery pack, which includes a housing and a plurality of batteries. All of the plurality of batteries are disposed in the housing, and the batteries are the above-mentioned batteries.

[0034] The embodiments of the present application provide a battery and a battery pack. The battery is mounted on a protection board through a mounting structure. The mounting structure is electrically connected to the protection board, and the ear is pressed against the mounting structure through a connection structure, so that the ear and the protection board are electrically connected through the mounting structure, thereby realizing a detachable connection between the ear and the protection board, facilitating the disassembly, repair and replacement of the battery cell, avoiding problems such as virtual soldering or offset soldering when the ear and the protection board are connected by welding, and improving the connection stability between the ear and the protection board. And it can also contribute to the disassembly and recycling of the battery cell, which is beneficial to environmental protection.

[0035] Furthermore, by making the thickness of the mounting structure greater than the thickness of the protection board, the connection area between the connection structure and the mounting structure can be increased, thereby further improving the connection stability between the connection structure and the mounting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 is a schematic structural diagram of a battery pack provided by an embodiment of the present application;

[0038] Figure 2 is Figure 1 an exploded view of the battery pack in

[0039] Figure 3 is a schematic structural diagram of a battery cell provided by an embodiment of the present application;

[0040] Figure 4 is a schematic structural diagram of a battery when a connection structure and a mounting structure are in a locked state provided by an embodiment of the present application;

[0041] Figure 5 A cross-sectional view of a battery when the connection structure and the mounting structure in the battery provided by the embodiment of the present application are in an unlocked state;

[0042] Figure 6 A schematic structural view of a mounting structure provided by the embodiment of the present application;

[0043] Figure 7 A schematic structural view of a mounting structure from another angle provided by the embodiment of the present application;

[0044] Figure 8 A schematic structural view of a mounting structure and a protection board provided by the embodiment of the present application.

[0045] Explanation of reference numerals:

[0046] 10 - Battery;

[0047] 100 - Protection board;

[0048] 110 - Through hole; 120 - Limiting hole;

[0049] 200 - Mounting structure;

[0050] 210 - Mounting part; 220 - Mounting plate; 230 - Limiting structure; 240 - Mounting hole;

[0051] 300 - Battery cell;

[0052] 310 - Tab; 311 - Notch;

[0053] 400 - Connection structure;

[0054] 410 - Connection part; 420 - Pressing part. Detailed implementation manners

[0055] As described in the background art, the connection method of welding the tab to the protection board adopted in the related art is not conducive to the disassembly, repair and replacement between the battery cell and the protection board, and there are also problems of virtual welding or offset welding between the tab and the protection board.

[0056] The reason for this problem is that the welding method itself has certain defects. For example, during the welding process of welding the tab to the protection board, welding slag and the like will fall into the battery interior, increasing the impurities inside the battery.

[0057] Furthermore, there will be situations of virtual welding or offset welding at the welding joint between the tab and the protection board. If there is virtual welding between the tab and the protection board, it will lead to a reduction in the connection stability between the tab and the protection board, and it will also cause a reduction in the electrical conduction and overcurrent capacity between the tab and the protection board, affecting the performance of the battery.

[0058] In addition, if the tab is connected to the protection board by welding, it is not conducive to the disassembly and separation of the tab from the protection board, which in turn is not conducive to the disassembly, repair and replacement of the battery cell connected to the tab, increasing the maintenance cost of the battery and reducing the practicality of the battery.

[0059] When a certain battery cell in the battery fails, the entire battery pack can only be scrapped. If forced to disassemble, it will cause damage to the battery cell or the protection board or lead to safety accidents. The non-detachable and non-recyclable nature of the battery cell poses many challenges to environmental protection and greatly increases the maintenance cost of battery products.

[0060] To address the above technical problems, the embodiments of the present application provide a battery and a battery pack. The battery electrically connects the mounting structure to the protection board, and presses the tab against the mounting structure through the connection structure, so that the tab and the protection board are electrically connected through the mounting structure, thereby enabling detachable connection between the tab and the protection board, facilitating the disassembly, repair and replacement of the battery cell, avoiding problems such as virtual soldering or offset soldering when the tab and the protection board are connected by welding, and improving the connection stability between the tab and the protection board. It also helps with the disassembly and recycling of the battery cell, which is beneficial to environmental protection.

[0061] Furthermore, by making the thickness of the mounting structure greater than the thickness of the protection board, the connection area between the connection structure and the mounting structure can be increased, thereby further improving the connection stability between the connection structure and the mounting structure.

[0062] To make the above objects, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0063] Refer to Figure 1 and Figure 2 , the embodiments of the present application provide a battery 10. The battery 10 may include a protection board 100, a mounting structure 200, a battery cell 300, and a connection structure 400. The protection board 100 may be a printed circuit board, and the protection board 100 can be electrically connected to the conductive layer in the printed circuit board.

[0064] The mounting structure 200 is disposed on the protection board 100, and the mounting structure 200 can be electrically connected to the protection board 100. The mounting structure 200 can be detachably connected to the protection board 100. For example, a mounting groove is formed on the protection board 100, and the mounting structure 200 is disposed in the mounting groove, and the mounting structure 200 can also be electrically connected to the conductive layer in the protection board 100. The mounting structure 200 can be a conductive structure. For example, the mounting structure 200 can be a conductive copper piece.

[0065] The detachable connection method between the mounting structure 200 and the protection board 100 can facilitate the maintenance and replacement of the mounting structure 200 and improve the usage flexibility.

[0066] In some other embodiments, the mounting structure 200 can also be welded to the protection board 100 by welding, which can improve the connection stability between the mounting structure 200 and the protection board 100.

[0067] Reference Figure 3 , the battery cell 300 has a tab 310, the battery cell 300 also has a battery cell 300 body connected to the tab 310, and the tab 310 is disposed at one end of the battery cell 300 body facing the protection board 100.

[0068] Reference Figure 3 , in some embodiments, the battery cell 300 can have two tabs 310, and the number of the mounting structures 200 and the connection structures 400 is two. Each tab 310 can be pressed against the mounting structure 200 through a connection structure 400.

[0069] The connection structure 400 can be detachably connected to the mounting structure 200. The connection structure 400 is used to press the tab 310 against the mounting structure 200 and electrically connect the tab 310 to the mounting structure 200. In an example, when the connection structure 400 is connected to the mounting structure 200, the connection structure 400 can press the tab 310 against the mounting structure 200, electrically connect the tab 310 to the mounting structure 200, and enable the tab 310 and the mounting structure 200 to be detachably connected through the connection structure 400.

[0070] In some embodiments, the detachable connection method between the connection structure 400 and the mounting structure 200 can be threaded connection, snap connection or plug connection.

[0071] An embodiment of the present application provides a battery 10. The battery 10 installs the installation structure 200 on the protection board 100. The installation structure 200 is electrically connected to the protection board 100, and the tab 310 is pressed against the installation structure 200 through the connection structure 400, so that the tab 310 and the protection board 100 are electrically connected through the installation structure 200, thereby realizing a detachable connection between the tab 310 and the protection board 100, facilitating the disassembly, repair and replacement of the battery cell 300, avoiding problems such as virtual soldering or offset soldering when the tab 310 and the protection board 100 are connected by welding, and improving the connection stability between the tab 310 and the protection board 100.

[0072] Reference Figure 4 and Figure 5 , in some embodiments, the thickness of the installation structure 200 can be greater than the thickness of the protection board 100, which can increase the connection area between the connection structure 400 and the installation structure 200, thereby further improving the connection stability between the connection structure 400 and the installation structure 200.

[0073] Compared with the method of directly connecting the connection structure 400 to the protection board 100, in order to improve the connection stability between the connection structure 400 and the protection board 100, it may be necessary to increase the overall thickness of the protection board 100, which will lead to an increase in the thickness of the protection board 100, an increase in the space occupancy rate of the protection board 100, which is not conducive to reducing the space occupancy rate of the battery 10 and is not conducive to the miniaturization design of the battery 10.

[0074] Reference Figure 4 and Figure 5 , in some embodiments, the installation structure 200 may include an installation portion 210. The protection board 100 has a through hole 110. The installation portion 210 passes through the through hole 110, and the installation portion 210 is detachably connected to the connection structure 400. The installation portion 210 can be pressed against the inner side wall of the through hole 110 by an interference fit.

[0075] Reference Figure 4 and Figure 5 , in the thickness direction of the protection board 100 (such as Figure 5 the Y direction in Figure 5 ), the height of the installation portion 210 (such as Figure 5 h1 in

[0076] In this way, by disposing the installation portion 210 within the through-hole 110, the assembly steps between the installation structure 200 and the protection plate 100 can be simplified, and the assembly efficiency between the installation structure 200 and the protection plate 100 can be improved. Furthermore, by making the height of the installation portion 210 greater than the thickness of the protection plate 100, the connection area between the connection structure 400 and the installation structure 200 can be increased, thereby improving the connection stability between the connection structure 400 and the installation structure 200.

[0077] In some embodiments, if the installation portion 210 has an installation hole 240 and a part of the connection structure 400 can be disposed within the installation hole 240 to achieve a detachable connection between the connection structure 400 and the installation structure 200, then the depth of the installation hole 240 should be greater than the axial thickness of the inner sidewall of the through-hole 110, and the depth of the installation hole 240 should also be greater than the thickness of the protection plate 100. In this way, the connection area between the installation structure 200 and the connection structure 400 can be made larger than the connection area when the connection structure 400 is directly connected to the through-hole 110 on the protection plate 100.

[0078] Reference Figure 6 、 Figure 7 and Figure 8 In some embodiments, the installation structure 200 may further include an installation plate 220. The installation plate 220 is connected to one end of the installation portion 210 facing the tab 310, and the installation plate 220 is used for electrical connection with the surface of the protection plate 100 facing the tab 310.

[0079] In this way, while the installation portion 210 is connected to the installation structure 200, it can also be connected to the protection plate 100 through the installation plate 220, which can increase the connection area between the installation structure 200 and the protection plate 100, and further improve the connection stability between the installation structure 200 and the protection plate 100.

[0080] In some embodiments, the installation plate 220 and the protection plate 100 can be connected by welding, which can improve the connection stability between the installation plate 220 and the protection plate 100. For example, the installation plate 220 can be soldered to the protection plate 100 by surface mount soldering to make an electrical connection between the installation plate 220 and the protection plate 100.

[0081] The connection structure 400 passes through the installation plate 220 and is detachably connected to the installation portion 210, and the tab 310 is pressed against the surface of the installation plate 220 facing away from the protection plate 100.

[0082] Reference Figure 7 In the thickness direction of the protection plate 100 (such as Figure 7In the Y direction, the orthographic projection of the mounting portion 210 can fall within the orthographic projection of the mounting plate 220. This can increase the contact area between the mounting plate 220 and the tab 310, thereby improving the current-carrying capacity between the tab 310 and the mounting structure 200.

[0083] Reference Figure 6 、 Figure 7 and Figure 8 In some embodiments, the mounting structure 200 may further include a limiting structure 230. The limiting structure 230 is disposed on the outer sidewall of the mounting portion 210, and the protection plate 100 has a limiting hole 120 that cooperates with the limiting structure 230. When the mounting portion 210 is installed in the through hole 110, the limiting structure 230 is installed in the limiting hole 120, and the limiting structure 230 is used to limit the rotation of the mounting structure 200 relative to the through hole 110.

[0084] In this way, by providing the limiting structure 230 on the outer sidewall of the mounting portion 210 and installing the limiting structure 230 in the limiting hole 120 when the mounting portion 210 is installed in the through hole 110, the circumferential rotation of the mounting portion 210 relative to the through hole 110 around the circumference of the through hole 110 can be restricted, thereby improving the connection stability between the mounting structure 200 and the protection plate 100.

[0085] Furthermore, the limiting structure 230 can also play a role in preventing misalignment and positioning, facilitating the installation of the mounting structure 200 in the through hole 110, reducing the error rate when the mounting structure 200 is installed in the through hole 110, and improving the assembly efficiency between the mounting structure 200 and the protection plate 100.

[0086] Reference Figure 7 and Figure 8 In some embodiments, the limiting structure 230 may be at least one rib. For example, the number of ribs may be two, and the ribs extend away from the outer sidewall of the mounting portion 210. The two ribs can be oppositely arranged on the outer sidewall of the mounting portion 210. There may also be two in the limiting hole 120, and both of the two limiting holes 120 can communicate with the through hole 110. When the mounting portion 210 is installed in the through hole 110, the ribs can be installed in the limiting holes 120.

[0087] In some embodiments, the limiting structure 230 and the mounting portion 210 may be an integral structure. In this way, the mounting structure 200 can be simplified, the number of components can be reduced, and the assembly efficiency can be improved.

[0088] In some embodiments, the outer surface of the mounting structure 200 is covered with an anti-oxidation layer. In this way, by covering the outer surface of the mounting structure 200 with an anti-oxidation layer, the oxidation process of the mounting structure 200 can be delayed, and the service life of the mounting structure 200 can be improved.

[0089] In some embodiments, the anti-oxidation layer may be a nickel-plated layer. If the mounting structure 200 is a copper metal part, the mounting structure 200 can also be anti-oxidation treated by forming an Organic Solderability Preservatives (OSP) on its outer surface, and the oxidation process of the mounting structure 200 can be delayed.

[0090] In some embodiments, the connection structure 400 is an insulating part. If the connection structure 400 is a conductive part, during the assembly process of the connection structure 400 and the mounting structure 200, there is a probability that the connection structure 400 will fall off, and the fallen connection structure 400 may cause a short circuit between the battery cell 300 or the protection board 100. Thus, by setting the connection structure 400 as an insulating part, the problem that the fallen connection structure 400 may cause a short circuit between the battery cell 300 and the protection board 100 can be avoided.

[0091] In some embodiments, the insulating part may be a plastic insulating part, and the insulating part may also be other non-metallic insulating parts, such as a rubber insulating part.

[0092] Reference Figure 4 and Figure 5 , in some embodiments, the mounting structure 200 has a mounting hole 240, and the connection structure 400 may include a connecting portion 410 and a pressing portion 420. The connecting portion 410 passes through the tab 310, and the connecting portion 410 can be used for detachably connecting with the mounting hole 240. The pressing portion 420 is disposed on a side of the connecting portion 410 facing away from the protection board 100. When the connecting portion 410 is disposed in the mounting hole 240, the pressing portion 420 can be used for pressing the tab 310 against the surface of the mounting structure 200 facing away from the protection board 100.

[0093] In some embodiments, if the mounting structure 200 has a mounting portion 210 and a mounting plate 220, the mounting hole 240 can extend from the mounting plate 220 towards the mounting portion 210, and the connecting portion 410 passes through the mounting plate 220 from the mounting hole 240 and is detachably connected to the mounting portion 210.

[0094] The tab 310 may have an opening, the connecting portion 410 can pass through the opening on the tab 310 and further connect to the inner sidewall of the mounting hole 240, and the pressing portion 420 of the connection structure 400 can press the tab 310 against the surface of the mounting structure 200 facing away from the protection board 100 to achieve the detachable connection between the tab 310 and the mounting structure 200.

[0095] In this way, by connecting the connecting portion 410 on the connecting structure 400 to the inner side wall of the mounting hole 240 and using the pressing portion 420 on the connecting structure 400 to press the tab 310 onto the mounting structure 200, while achieving the detachable connection between the tab 310 and the mounting structure 200, the connecting structure 400 can be simplified, the manufacturing cost of the connecting structure 400 can be reduced, and thus the assembly efficiency of the battery 10 and the manufacturing cost of the battery 10 can be improved.

[0096] In some embodiments, the connecting structure 400 can be a threaded connector, such as a screw or a bolt. The inner side wall of the mounting hole 240 has an internal thread, and the outer side wall of the threaded connector has an external thread that mates with the internal thread. The threaded connector passes through the tab 310 and is screwed into the mounting hole 240, and the threaded connector presses the tab 310 onto the mounting structure 200. If the threaded connector is an insulating member, the threaded connector can be an insulating plastic screw.

[0097] Reference Figure 4 , in some embodiments, when the connecting structure 400 and the mounting structure 200 are in a locked state, the connecting portion 410 passes through the tab 310 and is installed in the mounting hole 240, and the pressing portion 420 presses the tab 310 onto the mounting structure 200, so as to connect the tab 310 to the mounting structure 200 on the protection board 100 through the connecting structure 400.

[0098] Reference Figure 5 When the connecting structure 400 and the mounting structure 200 are in an unlocked state, at least a part of the connecting portion 410 disengages from the mounting hole 240, and the tab 310 disengages from the connecting portion 410, so as to achieve the disassembly between the protection board and the tab 310.

[0099] It can be understood that when a part of the connecting portion 410 disengages from the mounting hole 240 so that the pressing portion 420 no longer presses the tab 310 onto the mounting structure 200, the tab 310 can be separated from the protection board 100. If the tab 310 can still be separated from the connecting portion 410 at this time, the tab 310 can be completely disengaged from the connecting structure 400 and the protection board 100. In this way, the disassembly efficiency between the tab 310 and the connecting structure 400 can also be improved, and the efficiency of completely disassembling the tab 310 from the protection board 100 can be improved.

[0100] Reference Figure 3 , in some embodiments, the tab 310 has a notch 311. When the connecting structure 400 and the mounting structure 200 are in an unlocked state, a part of the connecting portion 410 disengages from the mounting hole 240, so that the distance between the pressing portion 420 and the mounting structure 200 (such as Figure 5 the distance h3) is greater than the thickness of the tab 310.

[0101] In this way, when the connection structure 400 and the mounting structure 200 are in the unlocked state, and a part of the connecting portion 410 disengages from the mounting hole 240, the pressing portion 420 on the connection structure 400 no longer presses the tab 310 against the mounting structure 200, and the tab 310 is separated from the mounting structure 200. Since the connection structure 400 is inserted into the notch 311, when the pressing of the tab 310 by the pressing portion 420 is released, the connecting portion 410 can be separated from the tab 310 through the notch 311 on the tab 310, so that the connecting portion 410 can be separated from the tab 310 when the connecting portion 410 has not completely disengaged from the mounting hole 240, thereby improving the disassembly efficiency between the tab 310 and the protection board 100.

[0102] Reference Figure 5 , in some embodiments, when the connection structure 400 and the mounting structure 200 are in the unlocked state, the distance between the pressing portion 420 and the mounting structure 200 (such as Figure 5 the distance h3 in) is greater than or equal to 0.5 mm and less than or equal to 1.5 mm. The distance between the pressing portion 420 and the mounting structure 200 can be understood as the distance between the surface of the pressing portion 420 facing the protection board 100 and the surface of the mounting structure 200 facing the connection structure 400.

[0103] In this way, it is convenient for the tab 310 to be withdrawn from between the pressing portion 420 and the mounting structure 200, improving the disassembly efficiency of the tab 310.

[0104] Reference Figure 5 , in some embodiments, the distance between the pressing portion 420 and the mounting structure 200 (such as Figure 5 the distance h3 in) can be one of 0.5 mm, 0.6 mm, 0.9 mm, 1.1 mm, and 1.4 mm. Alternatively, the distance between the pressing portion 420 and the mounting structure 200 can be any value between greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

[0105] If the distance between the pressing portion 420 and the mounting structure 200 is less than 0.5 mm, it is not conducive to the tab 310 being withdrawn from between the pressing portion 420 and the mounting structure 200. If the distance between the pressing portion 420 and the mounting structure 200 is greater than 1.5 mm, the time for the connecting portion 410 to be disassembled from the mounting hole 240 is prolonged, reducing the disassembly efficiency between the tab 310 and the protection board 100.

[0106] Reference Figure 1 , the embodiment of the present application further provides a battery pack, which may include a housing and a plurality of batteries 10. The plurality of batteries 10 are all arranged in the housing, and the battery 10 is the battery 10 in the above embodiment.

[0107] In this way, by assembling the battery 10 in the above-described embodiment with the housing to form a battery pack, it is possible to facilitate the individual disassembly and repair of the battery cells 300 of each battery 10 in the battery pack, thereby reducing the repair cost of the battery pack.

[0108] The embodiments or implementation manners in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0109] It should be noted that phrases such as "in specific implementation", "in some embodiments", "in this embodiment", "exemplarily", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining a specific feature, structure or characteristic with an embodiment, it is within the knowledge scope of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments, whether explicitly or implicitly described.

[0110] Generally speaking, terms should be understood at least in part by their use in the context. For example, at least in part according to the context, the term "one or more" used in the text can be used to describe any feature, structure or characteristic in the sense of a singular, or can be used to describe a combination of features, structures or characteristics in the sense of a plural. Similarly, at least in part according to the context, terms such as "a" or "the" can also be understood to convey a singular usage or a plural usage.

[0111] It should be easily understood that the terms "on", "above", and "over" in this disclosure should be interpreted in the broadest manner, so that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but also can include the meaning of "above" or "over something" without intermediate features or layers therebetween (i.e., directly on something).

[0112] In addition, for the convenience of description, spatial relative terms can be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the figure. Spatial relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. The device can have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used in the text can be similarly interpreted accordingly.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and 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 (10), characterized in that: include: A protection plate (100); A mounting structure (200) is arranged on the protection plate (100) and is electrically connected to the protection plate (100), wherein the thickness of the mounting structure (200) is greater than the thickness of the protection plate (100); A battery cell (300) having a tab (310); A connection structure (400) is detachably connected to the mounting structure (200), and the connection structure (400) is used to press the pole lug (310) against the mounting structure (200) and electrically connect the pole lug (310) to the mounting structure (200).

2. The battery according to claim 1, characterized in that The mounting structure (200) comprises a mounting portion (210); The protection plate (100) has a through hole (110), the mounting portion (210) is inserted into the through hole (110), and the mounting portion (210) is detachably connected to the connection structure (400); In the thickness direction of the protection plate (100), the height of the mounting portion (210) is greater than the thickness of the protection plate (100).

3. The battery according to claim 2, characterized in that The mounting structure (200) further comprises a mounting plate (220); The mounting plate (220) is connected to one end of the mounting portion (210) facing the pole lug (310), and the mounting plate (220) is used to be electrically connected to a surface of the protection plate (100) facing the pole lug (310); The connection structure (400) passes through the mounting plate (220) and is detachably connected to the mounting portion (210), and the pole lug (310) is pressed against a surface of the mounting plate (220) facing away from the protection plate (100).

4. The battery according to claim 2, characterized in that The installation structure (200) further includes a limiting structure (230); The limiting structure (230) is arranged on the outer side wall of the mounting portion (210), and the protection plate (100) has a limiting hole (120) that matches the limiting structure (230); The limiting structure (230) is installed in the limiting hole (120), and the limiting structure (230) is used to limit the rotation of the installation structure (200) relative to the through hole (110).

5. The battery according to any one of claims 1 to 4, characterized in that: The connection structure (400) is an insulating member; Furthermore, the insulating component is a plastic insulating component.

6. The battery according to any one of claims 1 to 4, characterized in that: The mounting structure (200) has a mounting hole (240); The connection structure (400) comprises: A connecting portion (410), the connecting portion (410) passing through the pole ear (310) and used for being detachably connected to the mounting hole (240); A pressing portion (420), the pressing portion (420) being arranged on a side of the connecting portion (410) facing away from the protective plate (100), the pressing portion (420) being used to press the pole lug (310) against a surface of the mounting structure (200) facing away from the protective plate (100).

7. The battery according to claim 6, characterized in that When the connection structure (400) and the mounting structure (200) are in a locked state, the connection portion (410) passes through the pole lug (310) and is installed in the mounting hole (240), and the pressing portion (420) presses the pole lug (310) against the mounting structure (200); When the connection structure (400) and the mounting structure (200) are in an unlocked state, at least a portion of the connection portion (410) is disengaged from the mounting hole (240), and the pole lug (310) is disengaged from the connection portion (410).

8. The battery according to claim 7, characterized in that The pole ear (310) has a notch (311); When the connecting structure (400) and the mounting structure (200) are in an unlocked state, a portion of the connecting portion (410) is disengaged from the mounting hole (240), so that the distance between the pressing portion (420) and the mounting structure (200) is greater than the thickness of the tab (310).

9. The battery according to claim 8, characterized in that When the connection structure (400) and the mounting structure (200) are in an unlocked state, the distance between the pressing portion (420) and the mounting structure (200) is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

10. The battery according to any one of claims 1 to 4, characterized in that: The outer surface of the mounting structure (200) is covered with an anti-oxidation layer.

11. A battery pack, characterized in that: It comprises a shell and a plurality of batteries, wherein the plurality of batteries (10) are arranged in the shell, and the battery (10) is the battery (10) according to any one of claims 1 to 10.

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