Battery and battery pack

Abstract

The application relates to the technical field of battery processing, in particular to a battery and a battery pack. The battery comprises: a battery cell; a tab connected to the battery cell; a sleeve structure comprising an insulating sleeve and a reinforcing rib, the insulating sleeve is sleeved on the tab, and the reinforcing rib is connected to the insulating sleeve. The reinforcing rib is used for providing radial restoring force, so that the insulating sleeve is tightly attached to the tab after being sleeved on the tab. The insulating sleeve is sleeved on the tab, and the reinforcing rib provides additional radial restoring force, so that the insulating sleeve can be tightly attached to the tab after being sleeved on the tab. The multiple tabs are shaped and regularized, the tabs are prevented from being folded and inserted during the assembly process, and after the assembly of the battery cell is completed, the insulating sleeve is recovered, the tabs are insulated and isolated, the tabs are prevented from contacting the pole pieces to cause internal short circuit, the problems of tab redundant insertion and internal short circuit failure are effectively solved, and the safety and reliability of the battery cell are improved.

Description

Technical Field

[0001] This application relates to the field of battery processing technology, and in particular to a battery and battery pack. Background Technology

[0002] With the continuous development of the new energy industry, the requirements for batteries are also constantly increasing. Prismatic batteries have received continuous attention from researchers due to their high energy density and excellent current transmission efficiency, especially in the application of multi-tab structures.

[0003] However, in the assembly process of existing battery cells, the tabs are usually bent in a "C" shape. Although this structure improves the current transmission efficiency to a certain extent, when the tabs are stacked, they are prone to forming a fluffy and messy shape. This can cause the redundant parts of the tabs to be inserted into areas that should not be in contact, or to come into contact with the core electrode sheets, thereby causing internal short circuit failure. This not only affects the performance of the battery, but may also lead to safety hazards. Utility Model Content

[0004] This application provides a battery and battery pack that can achieve multi-tab shaping optimization and insulation isolation, thereby improving the safety and performance of the battery.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On one hand, this application provides a battery, comprising:

[0007] Battery cell;

[0008] The electrode tab is connected to the battery cell; the sleeve structure includes an insulating sleeve and a reinforcing rib. The insulating sleeve is fitted with the electrode tab, and the reinforcing rib is connected to the insulating sleeve. The reinforcing rib is used to provide radial restoring force so that the insulating sleeve fits snugly against the electrode tab after it is fitted.

[0009] In one possible implementation, the battery also includes a fixing structure for connection to the cell, and an insulating sleeve is connected to the fixing structure.

[0010] In one possible implementation, the fixing structure is provided with an adhesive layer, and the fixing structure is connected to the battery cell through the adhesive layer.

[0011] In one possible implementation, the fixing structure includes a first fixing part and a second fixing part;

[0012] The first fixing part is connected to one side of the battery cell, and the second fixing part is connected to the side of the battery cell opposite to the first fixing part.

[0013] In one possible implementation, multiple reinforcing ribs are provided, and the multiple reinforcing ribs are spaced apart along the axial direction of the insulating sleeve.

[0014] In one possible implementation, the reinforcing rib is connected to the outer wall of the insulating sleeve; and / or

[0015] The reinforcing ribs are connected to the inner wall of the insulating sleeve.

[0016] In one possible implementation, the insulating sleeve and the reinforcing rib are integrally formed or formed separately.

[0017] In one possible implementation, multiple reinforcing ribs are provided along the extension direction of the insulating sleeve, with at least one of the multiple reinforcing ribs provided on the side of the tab bend closer to the battery cell, and at least one provided on the side of the tab bend away from the battery cell.

[0018] In one possible implementation, the insulating sleeve is made of rubber.

[0019] On the other hand, this application provides a battery pack, including a housing and at least one of the above-mentioned batteries, the batteries being disposed in the housing.

[0020] The battery and battery pack provided in this application use an insulating sleeve to fit the tabs, and by adding reinforcing ribs to the insulating sleeve, additional radial restoring force is provided. This allows the insulating sleeve to fit tightly against the tabs after they are fitted, shaping and aligning multiple tabs. This prevents the tabs from folding or inserting during assembly. After the battery cell is assembled, the insulating sleeve can be restored and the tabs can be covered for insulation and isolation, preventing internal short circuits caused by contact between the tabs and the electrode plates. This effectively solves the problems of redundant tab insertion and internal short circuit failure, and improves the safety and reliability of the battery cell. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is one of the structural schematic diagrams of the insulating spacer provided in the embodiments of this application;

[0023] Figure 2 This is the second schematic diagram of the structure of the insulating spacer provided in the embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the insulating spacer provided in the battery cell according to an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the structure of the insulating separator being assembled in the battery according to an embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the battery structure provided in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100-Insulating spacer; 10-Fixing structure; 11-First fixing part; 12-Second fixing part; 20-Sleeve structure; 21-Insulating sleeve; 22-Reinforcing rib; 200-Battery; 201-Cell; 202-Electrical tab; 203-Connecting piece; 204-Cover plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] With the continuous development of the new energy industry, the requirements for batteries are also constantly increasing. Prismatic batteries have received continuous attention from researchers due to their high energy density and excellent current transmission efficiency, especially in the application of multi-tab structures.

[0031] However, in the assembly process of existing battery cells, the tabs are usually bent in a "C" shape. Although this structure improves the current transmission efficiency to a certain extent, when the tabs are stacked, they are prone to forming a fluffy and messy shape. This can cause the redundant parts of the tabs to be inserted into areas that should not be in contact, or to come into contact with the core electrode sheets, thereby causing internal short circuit failure. This not only affects the performance of the battery, but may also lead to safety hazards.

[0032] In order to overcome the shortcomings of the existing technology, after repeated thinking and verification, the inventors discovered that if multiple tabs are covered by an insulating elastic structure, the tabs can be prevented from folding or being inserted into the electrode during assembly. Furthermore, it can prevent the tabs from contacting the electrode plates and causing internal short circuits, effectively solving the problems of redundant insertion of tabs and internal short circuit failures, and improving the safety and reliability of the battery cell.

[0033] In view of the above, this application provides a battery, comprising:

[0034] Battery cell;

[0035] The electrode tab is connected to the battery cell; the sleeve structure includes an insulating sleeve and a reinforcing rib. The insulating sleeve is fitted with the electrode tab, and the reinforcing rib is connected to the insulating sleeve. The reinforcing rib is used to provide radial restoring force so that the insulating sleeve fits snugly against the electrode tab after it is fitted.

[0036] By using an insulating sleeve to fit the tabs and adding reinforcing ribs to the insulating sleeve, additional radial restoring force is provided. This allows the insulating sleeve to fit tightly against the tabs after they are fitted, shaping and aligning multiple tabs. This prevents the tabs from folding or inserting during assembly. After the cell assembly is completed, the insulating sleeve can be restored to cover the tabs for insulation and isolation, preventing internal short circuits caused by contact between the tabs and the electrode plates. This effectively solves the problems of redundant tab insertion and internal short circuit failure, improving the safety and reliability of the cell.

[0037] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0038] The following sections provide a detailed description of the specific structure of the insulating spacer and various possible implementation methods.

[0039] Figure 1 This is one of the structural schematic diagrams of the insulating spacer provided in the embodiments of this application. Figure 2 This is a second schematic diagram of the structure of the insulating spacer provided in the embodiments of this application. Figure 3 This is a schematic diagram of an insulating spacer provided in an embodiment of this application for the battery cell. Figure 4 This is a schematic diagram of the structure of the insulating separator being assembled in the battery according to an embodiment of this application. Figure 5 This is a schematic diagram of the battery structure provided in an embodiment of this application.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown in the embodiment of this application, the insulating spacer 100 is used in the battery 200. The insulating spacer 100 is used to shape and isolate the tabs 202 in the battery 200, thereby improving the safety and reliability of the battery 200.

[0041] like Figure 3 As shown, the battery 200 includes a cell 201 and a tab 202. The tab 202 is connected to one side of the cell 201.

[0042] The insulating spacer 100 includes a sleeve structure 20. The sleeve structure 20 is fitted over the tab 202. The sleeve structure 20 is used to shape and isolate the tab 202.

[0043] The insulating spacer 100 is fitted onto the root of the upper tab 202 of the battery cell 201 and is automatically positioned during assembly with the battery cell 201.

[0044] The sleeve structure 20 includes an insulating sleeve 21 and a reinforcing rib 22. The insulating sleeve 21 is fitted with a pole lug 202. The reinforcing rib 22 is connected to the insulating sleeve 21.

[0045] When no external force is applied, the insulating sleeve 21 naturally closes into a plane.

[0046] The reinforcing rib 22 is used to provide radial restoring force so that the insulating sleeve 21 fits against the electrode tab 202 after the electrode tab 202 is fitted, thereby shaping and isolating the electrode tab 202.

[0047] In one possible implementation, cell 201 is a wound core.

[0048] During the winding process, the reinforcing rib 22 deforms under stress, and the insulating sleeve 21 fits into the electrode tab 202. After the battery cell 201 is assembled, the external force is released, and the insulating sleeve 21 returns to its natural state under the action of the reinforcing rib 22.

[0049] In one possible implementation, the insulating spacer 100 further includes a fixing structure 10. The fixing structure 10 is connected to the sleeve structure 20. The fixing structure 10 is used to connect to the battery cell 201 to fix the insulating spacer 100 to the battery cell 201. The insulating sleeve 21 is connected to the fixing structure 10.

[0050] The insulating sleeve 100 is connected to the battery cell 201 through the fixing structure 10. The electrode tabs 202 are fitted through the insulating sleeve 21. By adding reinforcing ribs 22 to the insulating sleeve 21, additional radial restoring force is provided, so that the insulating sleeve 21 can fit tightly against the electrode tabs 202 after they are fitted. This can shape and regulate multiple electrode tabs 202, preventing the electrode tabs 202 from folding or inserting during assembly. After the battery cell 201 is assembled, the insulating sleeve 21 can be restored and the electrode tabs 202 can be covered for insulation and isolation, preventing the electrode tabs 202 from contacting the electrode sheets and causing internal short circuits. This effectively solves the problems of redundant insertion and internal short circuit failure of the electrode tabs 202. It not only improves the safety and reliability of the battery cell 201, but also reduces the number and complexity of components by integrating the fixing structure 10 and the sleeve structure 20. It also simplifies the production and assembly process, simplifies the production process, reduces production costs, and improves production efficiency.

[0051] Through effective insulation and structural stability, the insulating sleeve 100 helps maintain efficient current transmission in the battery 200, thereby improving the overall performance and reliability of the battery 200. The reinforcing rib 22 not only enhances the structural strength of the insulating sleeve 21, but also ensures that the insulating sleeve 21 will not deform due to external forces or thermal expansion and contraction during long-term use, thus maintaining the overall performance and lifespan of the battery 200.

[0052] In one possible implementation, the fixing structure 10 is provided with an adhesive layer, and the fixing structure 10 is connected to the battery cell 201 through the adhesive layer.

[0053] The adhesive layer provides a reliable and uniform connection, ensuring that the fixing structure 10 is firmly attached to the cell 201, which helps maintain the overall structural stability of the battery 200. The use of the adhesive layer makes the connection between the fixing structure 10 and the cell 201 tighter, reducing potential displacement or loosening during use, thereby maintaining the performance and safety of the battery 200.

[0054] Using an adhesive layer simplifies the installation process of the fixing structure 10. Compared to mechanical connections (such as screws or clips), the application of the adhesive layer is simpler and faster, helping to improve production efficiency. At the same time, the adhesive layer can adapt to battery cells 201 with different shapes and surfaces, providing greater design flexibility and suitable for various battery structures and sizes.

[0055] The adhesive layer typically has a certain degree of elasticity, which can provide cushioning when the battery 200 is subjected to external vibration or impact, helping to protect the cell 201 from mechanical stress damage, thereby extending the service life of the battery 200. The adhesive layer can also form a good seal between the fixing structure 10 and the cell 201, preventing the intrusion of external factors such as dust and moisture, thereby protecting the internal environment of the cell 201.

[0056] In one possible implementation, the fixing structure 10 is an adhesive tape structure, and the fixing structure 10 is connected to the battery cell 201 by its own adhesiveness.

[0057] like Figure 4 and Figure 5 As shown, in one possible implementation, the fixing structure 10 includes a first fixing part 11 and a second fixing part 12. The first fixing part 11 is connected to one side of the battery cell 201. The second fixing part 12 is connected to the side of the battery cell 201 opposite to the first fixing part 11.

[0058] By providing a first fixing part 11 and a second fixing part 12 on both sides of the battery cell 201, the fixing structure 10 can provide more uniform support and fixation. This dual-sided fixing method improves the stability of the overall structure, reduces the risk of displacement and loosening of the components during use, and thus improves the overall safety of the battery 200. The dual-sided fixing design ensures that the battery cell 201 can distribute pressure evenly when subjected to external forces, reducing structural deformation or damage that may be caused by single-point stress, thereby extending the service life of the battery cell 201 and maintaining its stable performance.

[0059] The design of the first fixing part 11 and the second fixing part 12 can accommodate battery cells 201 of different sizes and shapes, providing greater design flexibility and suitable for various battery 200 application scenarios. The dual-sided fixing design also makes the assembly process more intuitive and simple, and allows for easier disassembly and installation when maintenance or replacement is required.

[0060] The dual-sided fixing structure can help the battery cell 201 dissipate heat better to a certain extent, because the fixing structure 10 can serve as a heat conduction path, helping to dissipate the heat generated by the battery cell 201 more effectively.

[0061] In one possible implementation, multiple reinforcing ribs 22 are provided, and the multiple reinforcing ribs 22 are spaced apart along the axial direction of the insulating sleeve 21.

[0062] The multiple reinforcing ribs 22 provide additional support, making the overall structure of the insulating sleeve 21 more robust and effectively resisting external pressure and mechanical stress, preventing deformation of the insulating sleeve 21. The reinforcing ribs 22 spaced along the axial direction can provide uniform radial restoring force, allowing the insulating sleeve 21 to fit more tightly against the tab 202, helping to prevent loosening and displacement of the tab 202 and reducing the risk of internal short circuits.

[0063] The design of multiple reinforcing ribs 22 can be adjusted according to specific application requirements to accommodate battery cells 201 of different sizes and shapes, enabling the insulating spacer 100 to be widely used in various battery 200 structures. By spaced reinforcing ribs 22, structural strength can be improved without significantly increasing material usage, thereby maintaining the lightweight design of the insulating spacer 100.

[0064] In one possible implementation, multiple reinforcing ribs 22 are provided along the extending direction of the insulating sleeve 21. At least one of the multiple reinforcing ribs 22 is provided on the side of the bent portion of the tab 202 close to the cell 201, and at least one of the multiple reinforcing ribs 22 is provided on the side of the bent portion of the tab 202 away from the cell 201.

[0065] By providing reinforcing ribs 22 on both sides of the bent portion of the tab 202, radial restoring forces can be provided to both sides of the tab 202 to shape both sides of the tab 202 and cover the tab 202, thereby improving the shaping and insulation effect of the tab.

[0066] In one possible implementation, two reinforcing ribs 22 are provided, and the two reinforcing ribs 22 are symmetrically arranged on the insulating sleeve 21 along the axial direction of the insulating sleeve 21.

[0067] In one possible implementation, the spacing between the reinforcing ribs 22 is designed according to the width of the tab 202.

[0068] In one possible implementation, the reinforcing rib 22 is connected to the outer wall of the insulating sleeve 21.

[0069] When the reinforcing rib 22 is connected to the outer wall, it can increase the overall rigidity and compressive strength of the insulating sleeve 21, enhancing its ability to resist external mechanical stress. The external reinforcing rib 22 provides additional support to the outside of the insulating sleeve 21, making it easier for the insulating sleeve 21 to maintain a tight fit with the tab 202 during installation. The external reinforcing rib 22 also helps with heat dissipation by increasing the contact area with the outside environment, promoting heat conduction and dissipation.

[0070] In one possible implementation, the reinforcing rib 22 is connected to the inner wall of the insulating sleeve 21.

[0071] The reinforcing rib 22 is connected to the inner wall of the insulating sleeve 21, which helps to enhance the inward support force of the insulating sleeve 21 and ensures that the insulating sleeve 21 maintains its shape when it is in contact with the tab 202. The reinforcing rib 22 on the inner wall acts directly on the tab 202, providing a uniform radial restoring force, ensuring a tight contact between the tab 202 and the insulating sleeve 21, and reducing the possibility of loosening and displacement.

[0072] By selecting the reinforcing rib 22 to be connected to the outer wall, the inner wall, or both, the designer can flexibly adjust the mechanical properties and functional characteristics of the insulating sleeve 21 according to specific application requirements and the structural characteristics of the battery 200.

[0073] In one possible implementation, the insulating sleeve 21 and the reinforcing rib 22 are integrally formed.

[0074] The one-piece molding process ensures that there are no seams or connection points between the insulating sleeve 21 and the reinforcing rib 22, thereby improving the integrity and strength of the overall structure and reducing potential weaknesses. The one-piece molding process simplifies the production process, reduces assembly steps and time, improves production efficiency, and lowers manufacturing costs. The one-piece molded components have a high degree of consistency in size and shape, reducing performance inconsistencies caused by assembly errors and improving product reliability. Due to the absence of connection gaps, the one-piece design provides better sealing, preventing the intrusion of dust and moisture and protecting the internal environment of the battery cell 201.

[0075] In one possible implementation, the insulating sleeve 21 and the reinforcing rib 22 are formed separately.

[0076] Separate molding allows designers greater flexibility in material selection and geometry, enabling the optimization of each component's characteristics to meet diverse application requirements. Different materials can be chosen for the insulating sleeve 21 and the reinforcing rib 22 to meet specific performance requirements; for example, a softer material can be selected for the insulating sleeve 21 to improve fit, while a stiffer material can be chosen for the reinforcing rib 22 to enhance support. If a component is damaged or requires upgrades, the separate molding design allows for individual replacement or repair of a part without replacing the entire component, thus saving costs. Separate molding also enables more complex internal structural designs, such as incorporating specific functional characteristics (like heat conduction channels) into the reinforcing rib 22 without affecting the basic function of the insulating sleeve 21.

[0077] In one possible implementation, the thickness of the insulating sleeve 21 ranges from 0.1 mm to 1.5 mm.

[0078] In applications requiring lightweight and space-saving design, the thinner insulating sleeve 21 (0.1mm) can effectively reduce overall weight and volume, making it ideal for portable devices or space-constrained applications.

[0079] The thicker insulating sleeve 21 (1.5mm) provides greater mechanical strength and durability, making it suitable for applications requiring additional protection and higher insulation performance.

[0080] By adjusting the thickness of the insulating sleeve 21, its electrical insulation performance can be optimized. A thicker insulating sleeve 21 generally provides better electrical isolation, reduces the risk of short circuits, and enhances the safety of the battery 200. A thicker insulating sleeve 21 not only improves insulation performance but also provides better mechanical protection, preventing external impacts, vibrations, or other mechanical stresses from affecting the cell 201. A thicker insulating sleeve 21 can also provide some thermal insulation, preventing external heat from affecting the cell 201. A thinner insulating sleeve 21 may facilitate faster heat dissipation, save materials, and reduce costs.

[0081] By offering a thickness range from 0.1mm to 1.5mm, designers can flexibly choose the most suitable thickness according to different application requirements and environmental conditions to achieve optimal performance.

[0082] In one possible implementation, the insulating sleeve 21 is made of rubber, that is, the insulating sleeve 21 is a rubber ring.

[0083] Rubber materials possess excellent electrical insulation properties, effectively preventing current leakage and short circuits, thus improving the safety of battery 200. The elasticity of rubber allows the insulating sleeve 21 to fit tightly against the tab 202, maintaining good fit and sealing even under mechanical stress or vibration. Rubber materials typically have good abrasion resistance, resisting wear and tear during long-term use, thereby extending the service life of the insulating sleeve 21. The elastic properties of rubber enable it to effectively absorb and buffer external shocks and vibrations, protecting the tab 202 from mechanical damage. Many rubber materials have good resistance to chemicals, remaining stable in various chemical environments that battery 200 may come into contact with, and are not easily corroded or degraded. Rubber materials are easy to process, allowing for the manufacture of complex-shaped components through processes such as molding to meet different design requirements. Rubber materials generally maintain their performance over a wide temperature range, suitable for the use of battery 200 under various environmental conditions.

[0084] In one possible implementation, the insulating sleeve 21 is made of TPV (Thermoplastic Vulcanizate), which is resistant to high temperatures, aging, and has good insulation properties.

[0085] In one possible implementation, the insulating sleeve 21 may also be made of materials resistant to electrolyte corrosion, such as silicone rubber or fluororubber.

[0086] In one possible implementation, the stiffener 22 is made of a material with elastic deformation recovery properties, that is, the stiffener 22 generates radial force through elastic deformation.

[0087] The elastic deformation recovery property allows the reinforcing rib 22 to deform under external force and return to its original shape after the force is removed. This property ensures that the insulating sleeve 21 fits tightly against the tab 202, providing stable support and insulation. Materials with elastic deformation recovery properties can effectively absorb and buffer external shocks and vibrations, protecting the tab 202 from mechanical damage. Elastic materials typically have a high fatigue life, capable of withstanding multiple deformations without permanent deformation or damage, thus extending the component's lifespan. By providing continuous radial restoring force, the elastic reinforcing rib 22 helps prevent loosening and displacement of the tab 202, reducing the risk of short circuits and improving the safety of the battery 200. Elastic materials can adapt to different shapes and sizes, suitable for various specifications of cell 201 and tab 202 designs, providing greater design flexibility. Because elastic materials can adapt to different shapes and sizes, the assembly process is simpler, requiring no precise alignment or additional fixing force. Elastic materials can reduce noise generated by vibration and friction, improving the device's quietness. Many elastic materials retain their properties over a wide temperature range, making them suitable for the battery 200's application requirements under various environmental conditions.

[0088] In one possible implementation, the reinforcing rib 22 is also made of rubber.

[0089] In one possible implementation, the stiffener 22 can also be made of metal or polymer composite materials, such as spring sheets or helical springs, to ensure deformation recovery performance.

[0090] The insulating sleeve 100 provided in this embodiment includes a fixing structure 10 and a sleeve structure 20. The fixing structure 10 is used to connect to the battery cell 201. The sleeve structure 20 includes an insulating sleeve 21 and a reinforcing rib 22. The insulating sleeve 21 is connected to the fixing structure 10 and is fitted with a tab 202 connected to the battery cell 201. The reinforcing rib 22 is connected to the insulating sleeve 21 and is used to provide radial restoring force so that the insulating sleeve 21 fits snugly against the tab 202 after the tab 202 is fitted.

[0091] The insulating sleeve 100 is connected to the battery cell 201 through the fixing structure 10. The electrode tabs 202 are fitted through the insulating sleeve 21. By adding reinforcing ribs 22 to the insulating sleeve 21, additional radial restoring force is provided, so that the insulating sleeve 21 can fit tightly against the electrode tabs 202 after they are fitted. This can shape and regulate multiple electrode tabs 202, preventing the electrode tabs 202 from folding or inserting during assembly. After the battery cell 201 is assembled, the insulating sleeve 21 can be restored and the electrode tabs 202 can be covered for insulation and isolation, preventing the electrode tabs 202 from contacting the electrode sheets and causing internal short circuits. This effectively solves the problems of redundant insertion and internal short circuit failure of the electrode tabs 202. It not only improves the safety and reliability of the battery cell 201, but also reduces the number and complexity of components by integrating the fixing structure 10 and the sleeve structure 20. It also simplifies the production and assembly process, simplifies the production process, reduces production costs, and improves production efficiency.

[0092] This application embodiment also provides a battery 200, including a battery cell 201, a tab 202, and an insulating spacer 100. The tab 202 is connected to the battery cell 201.

[0093] Given that the battery 200 in this embodiment includes the insulating spacer 100 described in any of the above embodiments, the battery 200 includes the insulating spacer 100 structure and its beneficial effects, which will not be elaborated further in this embodiment.

[0094] The battery 200 in this embodiment can be a lithium-ion battery, such as lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, and ternary lithium battery.

[0095] In addition, battery 200 can also be other types of batteries, such as sodium batteries, solid-state batteries, etc.

[0096] In one possible implementation, the battery 200 further includes a connecting piece 203 and a cover plate 204. The tab 202 can be electrically connected to the connecting piece 203 by welding or other means. The cover plate 204 covers the side of the cell 201 where the tab 202 is located. The tab 202 is connected to the cover plate 204.

[0097] This application embodiment also provides a battery pack, including a housing and at least one of the above-described batteries 200, wherein the batteries 200 are disposed in the housing.

[0098] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0099] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0100] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0101] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery, characterized in that, include: Battery cell (201); A tab (202) is connected to the battery cell (201); The sleeve structure (20) includes an insulating sleeve (21) and a reinforcing rib (22). The insulating sleeve (21) is fitted with the tab (202). The reinforcing rib (22) is connected to the insulating sleeve (21). The reinforcing rib (22) is used to provide radial restoring force so that the insulating sleeve (21) fits against the tab (202) after it is fitted.

2. The battery according to claim 1, characterized in that, The battery also includes a fixing structure (10) for connecting to the cell (201), and the insulating sleeve (21) is connected to the fixing structure (10).

3. The battery according to claim 2, characterized in that, The fixing structure (10) is provided with an adhesive layer, and the fixing structure (10) is connected to the battery cell (201) through the adhesive layer.

4. The battery according to claim 2, characterized in that, The fixing structure (10) includes a first fixing part (11) and a second fixing part (12); The first fixing part (11) is connected to one side of the battery cell (201), and the second fixing part (12) is connected to the side of the battery cell (201) away from the first fixing part (11).

5. The battery according to claim 1, characterized in that, The reinforcing ribs (22) are provided in multiples, and the multiple reinforcing ribs (22) are spaced apart along the axial direction of the insulating sleeve (21).

6. The battery according to claim 1, characterized in that, The reinforcing rib (22) is connected to the outer wall of the insulating sleeve (21); and / or The reinforcing rib (22) is connected to the inner wall of the insulating sleeve (21).

7. The battery according to any one of claims 1-6, characterized in that, The insulating sleeve (21) and the reinforcing rib (22) are integrally formed or formed separately.

8. The battery according to any one of claims 1-6, characterized in that, The reinforcing ribs (22) are provided in multiple ways. Along the extension direction of the insulating sleeve (21), at least one of the multiple reinforcing ribs (22) is provided on the side of the bent portion of the tab (202) close to the battery cell (201), and at least one is provided on the side of the bent portion of the tab (202) away from the battery cell (201).

9. The battery according to any one of claims 1-6, characterized in that, The insulating sleeve (21) is made of rubber.

10. A battery pack, characterized in that, It includes a housing and at least one battery (200) as described in any one of claims 1-9, wherein the battery (200) is disposed in the housing.

Images