Battery cell packaging module and battery
Through the mechanical assembly of cantilever structure and housing, the problem of low packaging efficiency of existing battery cells is solved, the battery production efficiency is improved and the packaging cost is reduced.
Patent Information
- Application Number
- CN202323493443.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-21
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-21
AI Technical Summary
The existing battery cell packaging efficiency is low, resulting in low production efficiency.
The cantilever structure is used to clamp and hold the sealing ring to the shell, and the cover plate is assembled on the shell through mechanical assembly to achieve the sealing effect.
It improves the efficiency of battery cell packaging, reduces packaging costs, and facilitates quality monitoring and control.
Smart Images
Figure CN222320389U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery energy storage, and in particular to a battery core packaging module and a battery. Background Art
[0002] With the development of society, batteries have played an increasingly important role in human production and life, and are widely used in various fields, becoming an indispensable energy storage device in human daily life. The existing battery cell packaging refers to the sealing of the shell and the top cover. Generally speaking, the shell and the top cover are connected by welding or crimping, but the welding or crimping packaging method is less efficient. Utility Model Content
[0003] The utility model aims to provide a battery cell packaging module and a battery, aiming to solve the problem of low efficiency of existing battery cell packaging.
[0004] In a first aspect, the utility model provides a battery cell packaging module, which includes a shell, a sealing ring and a cover plate; the shell is provided with a battery cell accommodating groove with an opening at one end, and the sealing ring and the cover plate are both arranged at the opening; the cover plate is clamped with the shell through a cantilever structure, and presses the sealing ring so that the two ends of the sealing ring respectively abut against the shell and the cover plate to seal the battery cell accommodating groove.
[0005] In one embodiment, the cover plate elastically presses the sealing ring through the cantilever structure.
[0006] In one embodiment, a bearing surface is provided around the opening of the housing, and the first end of the sealing ring is disposed against the bearing surface;
[0007] The cover plate includes a cover body and a cantilever structure formed on the circumferential edge of the cover body; the cover body abuts against the second end of the sealing ring; the cantilever structure is used to clamp with the shell and enable the cover body to press the sealing ring toward the bearing surface.
[0008] In one of the embodiments, the cantilever structure is an elastic arm formed by bending and extending from the circumferential edge of the cover body in a direction away from the middle of the cover body and away from the sealing ring, and a first limiting surface arranged opposite to the bearing surface is also provided at the opening of the shell; one end of the elastic arm away from the cover body elastically abuts against the first limiting surface so that the cover body elastically presses the sealing ring.
[0009] In one embodiment, the cover plate is circular and the shell is cylindrical;
[0010] The cantilever structure is provided with a plurality of first grooves, each of which is spaced apart in the circumferential direction of the cantilever structure and extends in the radial direction of the cantilever structure to divide the cantilever structure into a plurality of first elastic claws; and / or,
[0011] The shell includes a shell body and a first limiting structure formed at the opening of the shell body, the first limiting structure includes a first extension portion extending outward from the opening of the shell body, a second extension portion connected to the first extension portion and extending along the axial direction of the shell body, and a third extension portion connected to the second extension portion and extending toward the axis of the shell body, the third extension portion is arranged opposite to the first extension portion; the bearing surface is formed on a side of the first extension portion close to the third extension portion, and the first limiting surface is formed on a side of the third extension portion close to the first extension portion.
[0012] In one embodiment, a plurality of second grooves are formed on the second extension portion and the third extension portion, and the second grooves are distributed at intervals in the circumferential direction of the shell body and extend in the radial direction of the shell body.
[0013] In one embodiment, the cover plate is circular and the shell is cylindrical; and / or,
[0014] The cantilever structure includes a first bending section connected to the circumferential edge of the cover body and extending in a direction away from the cover body, a first extending section connected to the first bending section and extending along the axial direction of the shell, and a second bending section connected to the first extending section and extending toward the axis of the shell, and a second limiting surface arranged opposite to the bearing surface is also provided at the opening of the shell;
[0015] The second bending section of the cantilever structure away from the cover body elastically abuts against the second limiting surface, so that the cover body elastically presses the sealing ring.
[0016] In one embodiment, a plurality of third grooves are provided on the first extension section and the second bending section, and the third grooves are distributed at intervals in the circumferential direction of the shell and extend in the radial direction of the shell to divide the cantilever structure into a plurality of second elastic claws.
[0017] In one embodiment, the shell includes a shell body, a second limiting structure formed at an opening of the shell body, and a cantilever structure connected to the second limiting structure, a bearing surface is formed on the second limiting structure, and the first end of the sealing ring is abutted against the bearing surface; the cover plate abuts against the second end of the sealing ring;
[0018] The cantilever structure is used to be clamped with the cover plate, and enables the cover plate to press the sealing ring toward the bearing surface.
[0019] In one embodiment, the cover plate is circular and the shell is cylindrical; and / or,
[0020] The cantilever structure is provided with a plurality of fourth grooves, each of which is distributed at intervals in the circumferential direction of the shell body and extends along the radial direction of the shell body to divide the cantilever structure into a plurality of third elastic claws.
[0021] In a second aspect, the utility model further provides a battery, which includes the battery cell packaging module of any of the above embodiments.
[0022] The following beneficial effects are achieved by using the embodiments of the present invention:
[0023] With the battery cell packaging module of the utility model, the cover plate is clamped with the shell through the cantilever structure, and the sealing ring is pressed so that the two ends of the sealing ring are respectively abutted against the shell and the cover plate to seal the battery cell accommodating groove, and the cover plate is assembled on the shell by mechanical assembly, and the packaging efficiency is high. The battery cell packaging module is applied to the battery, and the battery cell packaging module has a high packaging efficiency, thereby improving the production efficiency of the battery. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] in:
[0026] Figure 1 Schematic diagram of a battery cell packaging module in one embodiment.
[0027] Figure 2 for Figure 1 An exploded view of the battery cell packaging module is shown.
[0028] Figure 3 for Figure 1 A top view of the battery cell packaging module is shown.
[0029] Figure 4 for Figure 3 Middle AA section view.
[0030] Figure 5 for Figure 4 Enlarged schematic diagram of part B in the middle.
[0031] Figure 6 Schematic diagram of a battery cell packaging module in another embodiment.
[0032] Figure 7 for Figure 6 An exploded view of the battery cell packaging module is shown.
[0033] Figure 8 for Figure 6 A top view of the battery cell packaging module is shown.
[0034] Fig. 9 for Figure 8 Middle CC section view.
[0035] Fig.10 for Fig. 9 Enlarged schematic diagram of part D in the middle.
[0036] Fig.11 Schematic diagram of a battery cell packaging module in yet another embodiment.
[0037] Fig.12 for Fig.11 An exploded view of the battery cell packaging module is shown.
[0038] Fig.13 for Fig.11 A top view of the battery cell packaging module is shown.
[0039] Fig.14 for Fig.13 EE section view.
[0040] Fig.15 for Fig.14 Enlarged schematic diagram of part F in the middle.
[0041] Reference numerals: 100, shell; 101, battery cell receiving groove; 102, opening; 103, bearing surface; 104, first limiting surface; 106, second groove; 107, second limiting surface; 110, shell body; 120, first limiting structure; 121, first extension; 122, second extension; 123, third extension; 130, second limiting structure; 140, third limiting structure; 141, first extension ; 142, second extension body; 143, limiting protrusion; 200, sealing ring; 210, placement groove; 300, cover plate; 310, annular protrusion; 400, cantilever structure; 411, first groove; 412, first elastic claw; 421, first bending section; 422, first extension section; 423, second bending section; 424, third groove; 425, second elastic claw; 431, fourth groove; 432, third elastic claw. DETAILED DESCRIPTION
[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0043] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0044] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0045] The utility model provides a battery cell packaging module, which is used to package battery cells. Figures 1 to 15 The battery cell packaging module of an embodiment includes a shell 100, a sealing ring 200 and a cover plate 300; the shell 100 is provided with a battery cell accommodating groove 101 with an opening 102 at one end, and the sealing ring 200 and the cover plate 300 are both arranged at the opening 102; the cover plate 300 is clamped with the shell 100 through a cantilever structure 400, and presses the sealing ring 200 so that the two ends of the sealing ring 200 are respectively abutted on the shell 100 and the cover plate 300 to seal the battery cell accommodating groove 101, and the cover plate 300 can be assembled on the shell 100 by mechanical assembly, and the sealing performance requirements of the battery cell accommodating groove 101 are met, without the need to use complex fixed connection methods such as welding or crimping, and the packaging efficiency is high.
[0046] It is understandable that, by providing the cantilever structure 400 , the cover plate 300 and the shell 100 can be connected by a mechanical assembly method of snap-fitting. After being snap-fitted into place, the cantilever structure 400 can seal and fix the cover plate 300 and the shell 100 .
[0047] In addition, since the existing battery cell packaging usually adopts welding or crimping packaging connection, it will easily lead to the difficulty of fully monitoring the quality of the packaging process, and thus it is difficult to ensure the packaging quality. However, this embodiment adopts a mechanical assembly method to assemble the cover plate 300 on the housing 100, which is convenient for monitoring and controlling the quality of the packaging process. In addition, the existing welding or crimping packaging method has complex packaging equipment and high packaging cost, while the mechanical assembly packaging method of this embodiment has a lower packaging cost.
[0048] In one embodiment, the cover plate 300 elastically presses the sealing ring 200 through the cantilever structure 400. Through the provision of the cantilever structure 400, the cover plate 300 and the housing 100 can be packaged by a mechanical assembly method of buckling, and the cantilever structure 400 can be elastically deformed during the assembly process. After being buckled in place, the cantilever structure 400 can be elastically reset and the cover plate 300 and the housing 100 are packaged and fixed.
[0049] In one embodiment, the sealing ring 200 is an elastic sealing ring 200 , and the sealing ring 200 has elastic properties to provide a space margin for the cover plate 300 to be pressed down and assembled in the housing 100 .
[0050] In one embodiment, see Figures 6 to 15 A bearing surface 103 is provided around the opening 102 of the shell 100, and the first end of the sealing ring 200 is abutted against the bearing surface 103; the cover plate 300 includes a cover body, and a cantilever structure 400 formed on the circumferential edge of the cover body; the cover body abuts against the second end of the sealing ring 200; the cantilever structure 400 is used to be clamped with the shell 100, and the cover body presses the sealing ring 200 toward the bearing surface 103, so that the cover plate 300 is assembled on the shell 100 by mechanical assembly.
[0051] In this embodiment, the cantilever structure 400 may have various specific implementations.
[0052] In one specific embodiment, see Figures 6 to 10 The cantilever structure 400 is an elastic arm bent and extended from the circumferential edge of the cover body in a direction away from the middle of the cover body and away from the sealing ring 200. A first limiting surface 104 arranged opposite to the bearing surface 103 is also provided at the opening 102 of the shell 100; one end of the elastic arm away from the cover body elastically abuts against the first limiting surface 104, so that the cover body elastically presses the sealing ring 200.
[0053] During the process of assembling the cover plate 300 on the shell 100, the shell 100 can abut against the cantilever structure 400 so that the cantilever structure 400 can elastically deform and move closer to the bottom side of the shell 100. After the cover plate 300 moves to a preset position relative to the shell 100, the cantilever structure 400 can elastically abut against the first limiting surface 104 so that the cover body elastically presses the sealing ring 200 to assemble the cover plate 300 on the shell 100.
[0054] Furthermore, the cover plate 300 is circular, and the housing 100 is cylindrical. In this embodiment, a plurality of first grooves 411 are provided on the cantilever structure 400, and each first groove 411 is distributed at intervals in the circumferential direction of the cantilever structure 400, and extends in the radial direction of the cantilever structure 400, so as to divide the cantilever structure 400 into a plurality of first elastic claws 412, and by such an arrangement, each first elastic claw 412 is convenient to produce elastic deformation. Specifically, an annular protrusion 310 is further provided at the connection between the cover body and the cantilever structure 400, and the annular protrusion 310 is abutted against the sealing ring 200, and at least a portion of the annular protrusion 310 is embedded in the sealing ring 200.
[0055] Furthermore, the housing 100 includes a housing body 110, and a first limiting structure 120 formed at an opening 102 of the housing body 110, wherein the first limiting structure 120 includes a first extending portion 121 extending outward from the opening 102 of the housing body 110, a second extending portion 122 connected to the first extending portion 121 and extending along the axial direction of the housing body 110, and a third extending portion 123 connected to the second extending portion 122 and extending toward the axis of the housing body 110, wherein the third extending portion 123 is provided at the bottom of the housing body 110. 3 is arranged opposite to the first extension portion 121, so that an inner flange structure is formed at the opening 102 of the shell body 110, the bearing surface 103 is formed on the side of the first extension portion 121 close to the third extension portion 123, and the first limiting surface 104 is formed on the side of the third extension portion 123 close to the first extension portion 121. Through such an arrangement, the cover plate 300 and the sealing ring 200 are clamped and limited between the bearing surface 103 and the first limiting surface 104, so as to ensure the stability of the cover plate 300 after being assembled to the shell body 100.
[0056] Specifically, the outer circumference of the cantilever structure 400 is larger than the inner circumference of the third extension portion 123, thereby providing an interference fit during the assembly process and the self-elastic reset limit of the cantilever structure 400 after assembly. During the specific packaging, the cover plate 300 is first assembled, the sealing ring 200 is assembled on the bearing surface 103, and then the cover plate 300 and the housing 100 are axially pressed against each other, the cantilever structure 400 is abutted by the third extension portion 123 to elastically deform inward, and the sealing ring 200 is compressed and deformed by the cover plate 300. After being pressed into place, the cantilever structure 400 is elastically reset, and under the axial rebound of the sealing ring 200 and the elastic abutment of the cantilever structure 400, the cover plate 300 and the sealing ring 200 are clamped and fixed between the bearing surface 103 and the first limit surface 104, and the packaging is completed, thereby ensuring the stability of the cover plate 300 after being assembled to the housing 100.
[0057] Furthermore, a plurality of second grooves 106 are provided on the second extension portion 122 and the third extension portion 123. The second grooves 106 are distributed at circumferential intervals on the shell body 110 and extend in the radial direction of the shell body 110. Such a configuration facilitates the elastic deformation of the second extension portion 122 and the third extension portion 123. During the assembly of the cover plate 300 on the shell body 100, the cantilever structure 400 can abut against the third extension portion 123, so that the second extension portion 122 and the third extension portion 123 can be deformed in a direction away from the axis of the shell body 100. At the same time, the elastic deformation generated by the first elastic claws 412 in the cantilever structure 400 can facilitate the assembly of the cover plate 300 on the shell body 100.
[0058] In another specific embodiment, see Figures 11 to 15 , the cover plate 300 is circular and the shell 100 is cylindrical.
[0059] In this embodiment, the cantilever structure 400 includes a first bent section 421 connected to the circumferential edge of the cover body and extending in a direction away from the cover body, a first extension section 422 connected to the first bent section 421 and extending along the axial direction of the shell 100, and a second bent section 423 connected to the first extension section 422 and extending toward the axis of the shell 100, thereby forming an inner flange structure at the circumferential edge of the cover body, and a second limiting surface 107 arranged opposite to the bearing surface 103 is also provided at the opening 102 of the shell 100; the second bent section 423 of the cantilever structure 400 away from the cover body elastically abuts against the second limiting surface 107, so that the cover body elastically presses the sealing ring 200.
[0060] During the process of assembling the cover plate 300 on the shell 100, the shell 100 can abut against the cantilever structure 400 so that the cantilever structure 400 can elastically deform and move closer to the shell 100. After the cover plate 300 moves to a preset position relative to the shell 100, the second bending section 423 can elastically abut against the second limiting surface 107 so that the cover body elastically presses the sealing ring 200 to assemble the cover plate 300 on the shell 100.
[0061] In this embodiment, a plurality of third grooves 424 are provided on the first extension section 422 and the second bending section 423. The third grooves 424 are distributed at intervals in the circumferential direction of the shell 100 and extend in the radial direction of the shell 100 to divide the cantilever structure 400 into a plurality of second elastic claws 425. Such an arrangement facilitates the elastic deformation of each second elastic claw 425.
[0062] Specifically, the shell 100 includes a shell body 110 and a third limiting structure 140 formed at an opening 102 of the shell body 110. The third limiting structure 140 includes a first extension body 141 extending outward from the opening 102 of the shell body 110, a second extension body 142 connected to the first extension body 141 and extending along the axial direction of the shell body 110, and a limiting protrusion 143 formed between the first extension body 141 and the second extension body 142. The bearing surface 103 is formed on a side of the first extension body 141 opposite to the cover body, and the second limiting surface 107 is formed on a side of the first extension body 141 away from the cover body. After the cover body is assembled to the shell 100, the second bending section 423 is engaged and connected with the limiting protrusion 143. Such a configuration facilitates the assembly of the cover plate 300 to the shell 100 and ensures the stability of the cover plate 300 after being assembled to the shell 100.
[0063] Furthermore, the outer circumference of the third limiting structure 140 is larger than the inner circumference of the second bending section 423 in the cantilever structure 400, thereby providing an interference fit during the assembly process and a self-elastic reset limit of the cantilever structure 400 after assembly. In the specific packaging, the cover plate 300 is first assembled, the sealing ring 200 is assembled on the bearing surface 103, and then the cover plate 300 and the housing 100 are axially pressed against each other, the cantilever structure 400 is abutted by the third limiting structure 140 and elastically deformed outward, and the sealing ring 200 is compressed and deformed by the cover plate 300. After being pressed into place, the cantilever structure 400 is elastically reset, and the cover plate 300 is assembled to the housing 100 under the axial rebound of the sealing ring 200 and the elastic abutment of the cantilever structure 400.
[0064] Of course, in other specific embodiments, the cover plate 300 may also be square or prism-shaped, and the shell 100 may also be rectangular or prism-shaped, that is, when the cover plate 300 is hexagonal, the shell 100 is correspondingly configured as a hexagonal shape.
[0065] In another embodiment, see Figures 1 to 5 The shell 100 includes a shell body 110, a second limiting structure 130 formed at the opening 102 of the shell body 110, and a cantilever structure 400 connected to the second limiting structure 130. A bearing surface 103 is formed on the second limiting structure 130, and the first end of the sealing ring 200 is abutted against the bearing surface 103; the cover plate 300 abuts against the second end of the sealing ring 200; the cantilever structure 400 is used to be clamped with the cover plate 300, and the cover plate 300 presses the sealing ring 200 toward the bearing surface 103, so as to assemble the cover plate 300 to the shell 100.
[0066] In this embodiment, the cover plate 300 is circular, and the housing 100 is cylindrical. Further, the cantilever structure 400 is provided with a plurality of fourth grooves 431, each of which is distributed at intervals in the circumferential direction of the housing body 110 and extends in the radial direction of the housing body 110, so as to divide the cantilever structure 400 into a plurality of third elastic claws 432. By such a configuration, each of the third elastic claws 432 is easy to produce elastic deformation.
[0067] Specifically, the third elastic claw 432 is U-shaped or semicircular, so that an inner flange structure is formed at the opening 102 of the shell body 110, which is convenient for elastically abutting the cover plate 300. The outer circumference of the cover plate 300 is larger than the inner circumference of the cantilever structure 400, so as to provide an interference fit during the assembly process and a self-elastic reset limit of the cantilever structure 400 after assembly. A placement groove 210 is formed on the sealing ring 200, and the cover plate 300 is placed in the placement groove 210, which is convenient for limiting the assembly position of the cover plate 300 and improving the assembly accuracy. During the specific packaging, the cover plate 300 is first assembled, the sealing ring 200 is assembled on the bearing surface 103, and then the cover plate 300 and the housing 100 are axially pressed against each other, the cantilever structure 400 is elastically deformed outward by the contact of the cover plate 300, and the sealing ring 200 is compressed and deformed by the cover plate 300. After being pressed into place, the cantilever structure 400 is elastically reset, and the cover plate 300 is assembled to the housing 100 under the axial rebound of the sealing ring 200 and the elastic contact of the cantilever structure 400. Of course, in other embodiments, the cover plate 300 can also be square or prismatic, and the housing 100 can also be rectangular or prismatic, that is, when the cover plate 300 is hexagonal, the housing 100 is correspondingly set to be hexagonal.
[0068] In one embodiment, the elastic abutment position of the cantilever structure 400 in the battery cell packaging module, that is, the limiting position where the cantilever structure 400 elastically abuts against the housing 100 or the cover plate 300 , is determined according to the elastic compression amount of the sealing ring 200 .
[0069] In this embodiment, the number, width and length of the first groove 411, the second groove 106, the third groove 424 and the fourth groove 431 will affect the elastic deformation bending range and elastic force of the cantilever structure 400, which is determined according to the pressing force of the battery cell packaging process and the stiffness adjustment required for the cover plate 300 to limit.
[0070] See also Figures 1 to 15 A battery of an embodiment includes a cell packaging module of any of the above embodiments. The cell packaging module is applied to the battery, and the cantilever structure 400 can abut the cover plate 300 relative to the shell 100 to sandwich the sealing ring 200 between the shell 100 and the cover plate 300. The cover plate 300 is assembled on the shell 100 by mechanical assembly. The cell packaging module has a high packaging efficiency, thereby improving the production efficiency of the battery. Furthermore, the battery can be selected as a power battery.
[0071] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.
Claims
1. A battery cell packaging module, characterized in that: The battery cell packaging module includes a shell, a sealing ring and a cover plate; the shell is provided with a battery cell accommodating groove with an opening at one end, and the sealing ring and the cover plate are both arranged at the opening; the cover plate is clamped with the shell through a cantilever structure, and presses the sealing ring so that the two ends of the sealing ring are respectively abutted against the shell and the cover plate to seal the battery cell accommodating groove.
2. The battery cell packaging module according to claim 1, characterized in that: The cover plate elastically presses the sealing ring through the cantilever structure.
3. The battery cell packaging module according to claim 2, characterized in that: A bearing surface is provided around the opening of the shell, and the first end of the sealing ring is disposed against the bearing surface; The cover plate includes a cover body and a cantilever structure formed on the circumferential edge of the cover body; the cover body abuts against the second end of the sealing ring; the cantilever structure is used to clamp with the shell and enable the cover body to press the sealing ring toward the bearing surface.
4. The battery cell packaging module according to claim 3, characterized in that: The cantilever structure is an elastic arm formed by bending and extending from the circumferential edge of the cover body in a direction away from the middle of the cover body and away from the sealing ring. The opening of the shell is also provided with a first limiting surface arranged opposite to the bearing surface; one end of the elastic arm away from the cover body is elastically abutted against the first limiting surface, so that the cover body elastically presses the sealing ring.
5. The battery cell packaging module according to claim 4, characterized in that: The cover plate is circular, and the shell is cylindrical; The cantilever structure is provided with a plurality of first grooves, each of which is spaced apart in the circumferential direction of the cantilever structure and extends in the radial direction of the cantilever structure to divide the cantilever structure into a plurality of first elastic claws; and / or, The shell includes a shell body and a first limiting structure formed at the opening of the shell body, the first limiting structure includes a first extension portion extending outward from the opening of the shell body, a second extension portion connected to the first extension portion and extending along the axial direction of the shell body, and a third extension portion connected to the second extension portion and extending toward the axis of the shell body, the third extension portion is arranged opposite to the first extension portion; the bearing surface is formed on a side of the first extension portion close to the third extension portion, and the first limiting surface is formed on a side of the third extension portion close to the first extension portion.
6. The battery cell packaging module according to claim 5, characterized in that: A plurality of second grooves are formed on the second extension portion and the third extension portion. The second grooves are distributed at intervals in the circumferential direction of the shell body and extend along the radial direction of the shell body.
7. The battery cell packaging module according to claim 3, characterized in that: The cover plate is circular and the shell is cylindrical; and / or, The cantilever structure includes a first bending section connected to the circumferential edge of the cover body and extending in a direction away from the cover body, a first extending section connected to the first bending section and extending along the axial direction of the shell, and a second bending section connected to the first extending section and extending toward the axis of the shell, and a second limiting surface arranged opposite to the bearing surface is also provided at the opening of the shell; The second bending section of the cantilever structure away from the cover body elastically abuts against the second limiting surface, so that the cover body elastically presses the sealing ring.
8. The battery cell packaging module according to claim 7, characterized in that: A plurality of third grooves are formed on the first extension section and the second bending section. The third grooves are distributed at intervals in the circumferential direction of the shell and extend in the radial direction of the shell to divide the cantilever structure into a plurality of second elastic claws.
9. The battery cell packaging module according to claim 2, characterized in that: The shell comprises a shell body, a second limiting structure formed at an opening of the shell body, and a cantilever structure connected to the second limiting structure, a bearing surface is formed on the second limiting structure, and the first end of the sealing ring is abutted against the bearing surface; the cover plate abuts against the second end of the sealing ring; The cantilever structure is used to be clamped with the cover plate, and enables the cover plate to press the sealing ring toward the bearing surface; The cover plate is circular and the shell is cylindrical; and / or, The cantilever structure is provided with a plurality of fourth grooves, each of which is distributed at intervals in the circumferential direction of the shell body and extends along the radial direction of the shell body to divide the cantilever structure into a plurality of third elastic claws.
10. A battery, characterized in that: The battery comprises the battery cell packaging module according to any one of claims 1 to 9.