Battery monomer and battery pack

Abstract

The utility model provides a battery monomer and a battery pack, and relates to the technical field of batteries. The single battery comprises a shell, a cover plate connected with one end of the shell, a pole penetrating through the cover plate, and an electrode assembly, an insulating part and an insulating supporting part which are arranged in the shell. The electrode assembly comprises an electrode body and a tab which are connected with each other, the insulating part is located on one side, facing the electrode body, of the cover plate, and the pole penetrates through the insulating part; the insulating supporting piece is located on the side, facing the electrode body, of the insulating piece and comprises a supporting part and a connecting part which are connected, the connecting part is located at least one end in the length direction of the supporting part and clamped with the insulating piece, and a part of the tab is located on the side, away from the electrode body, of the supporting part and connected with the pole. According to the battery monomer provided by the invention, the connecting part is clamped with the insulating part, so that the mounting of the insulating supporting part is facilitated, the mounting difficulty of the insulating supporting part is reduced, and the production efficiency of the battery monomer is improved.

Description

Technical Field

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

[0002] The information disclosed in this background section is intended only to enhance the understanding of the general background of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art.

[0003] With the development of battery technology, the safety requirements for individual battery cells are becoming increasingly stringent. To improve the safety of individual battery cells, insulating supports are typically installed to constrain the tabs of the electrode assembly, thereby reducing the possibility of short circuits caused by the tabs inserting into the electrode body during the electrode assembly assembly process. However, existing battery cells suffer from the problem of inconvenient installation of insulating supports, which affects the production efficiency of individual battery cells. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a battery cell and a battery pack, which aims to solve the technical problem of inconvenient installation of insulating support components.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, embodiments of this application provide a single battery cell, comprising:

[0007] case;

[0008] A cover plate is connected to one end of the housing;

[0009] The pole is inserted through the cover plate;

[0010] An electrode assembly is disposed within the housing and includes an electrode body and a tab connected to each other;

[0011] An insulating element is disposed within the housing and located on the side of the cover plate facing the electrode body, and the electrode post passes through the insulating element;

[0012] An insulating support is disposed within the housing and located on the side of the insulating member facing the electrode body. The insulating support includes a support portion and a connecting portion connected together. The connecting portion is located at at least one end of the support portion along its length and is engaged with the insulating member. A portion of the electrode tab is located on the side of the support portion away from the electrode body and is connected to the electrode post.

[0013] In one embodiment of the first aspect, the battery cell has a first orientation, the insulating member includes an insulating plate, a plurality of first insulating bosses and second insulating bosses, the electrode post passes through the insulating plate, the first insulating bosses and the second insulating bosses are connected to the side of the insulating plate facing the electrode body, the plurality of first insulating bosses are spaced apart along the first orientation, the second insulating bosses are located between two adjacent first insulating bosses along the first orientation, the support portion is engaged with the second insulating boss, and the connecting portion is engaged with the first insulating boss.

[0014] In one embodiment of the first aspect, a first clearance groove is provided on the first insulating boss, a second clearance groove is provided on the second insulating boss, the connecting portion is disposed in the first clearance groove, and a portion of the supporting portion is disposed in the second clearance groove.

[0015] In one embodiment of the first aspect, the connecting portion is provided with a through first connecting hole, and the first insulating boss is provided with a first elastic buckle, the first elastic buckle is located in the first clearance groove, and the first elastic buckle engages with the first connecting hole.

[0016] In one embodiment of the first aspect, the first elastic buckle includes a first buckle segment and a second buckle segment connected together, the second buckle segment is provided with a first inclined surface, the first buckle segment passes through the first connecting hole, and the second buckle segment is located on the side of the connecting portion facing the electrode body and abuts against the connecting portion.

[0017] In one embodiment of the first aspect, the support portion is provided with a through second connecting hole, the second insulating boss is provided with a second elastic buckle, the second elastic buckle is disposed in the second clearance groove, and the second elastic buckle engages with the second connecting hole.

[0018] In one embodiment of the first aspect, the battery cell further has a second direction perpendicular to the first direction, a plurality of electrode assemblies are provided, the plurality of electrode assemblies are arranged along the second direction, a plurality of insulating supports are provided, the plurality of insulating supports are spaced apart along the second direction, and each insulating support is corresponding to a tab of one of the electrode assemblies.

[0019] In one embodiment of the first aspect, the battery cell further includes an insulating connector, through which two adjacent support portions are connected.

[0020] In one embodiment of the first aspect, the insulating connectors are provided in a plurality of manner, and the plurality of insulating connectors are arranged at intervals along the first direction.

[0021] Secondly, embodiments of this application provide a battery pack including the battery cells described in any of the embodiments of the first aspect above.

[0022] The beneficial effects of this application are as follows:

[0023] In the battery cell provided in this application, an insulating support is disposed inside the housing and located on the side of the insulating member facing the electrode body. The insulating support includes a support portion and a connecting portion connected together. A portion of the electrode tab is located on the side of the support portion away from the electrode body and is connected to the electrode post, so that the support portion can constrain the electrode tab to reduce the possibility of the electrode tab being inserted into the electrode body. At the same time, the connecting portion is located at at least one end in the length direction of the support portion and is snapped into the insulating member. The snapping of the connecting portion into the insulating member facilitates the installation of the insulating support and reduces the installation difficulty of the insulating support, thereby improving the production efficiency of the battery cell.

[0024] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A cross-sectional view of a single battery cell in an embodiment of this application is shown;

[0027] Figure 2 This illustration shows a schematic diagram of the assembly structure of the insulating support, pole, cover plate, insulating component, conductive component, and electrode assembly before core bonding in an embodiment of this application.

[0028] Figure 3 This illustration shows an assembly structure diagram of an insulating support, cover plate, insulating component, conductive component, and pole post in one embodiment of this application.

[0029] Figure 4 An exploded structural diagram of an insulating support, cover plate, insulating element, conductive element, and pole post is shown in one embodiment of this application;

[0030] Figure 5 It shows Figure 4 Enlarged structural diagram of region A in the middle;

[0031] Figure 6 It shows Figure 4A magnified structural diagram of region B in the middle;

[0032] Figure 7 An exploded structural diagram of the insulating support, cover plate, insulating element, conductive element, and pole post is shown in another embodiment of this application.

[0033] Explanation of key component symbols:

[0034] 110-Housing; 120-Cover plate; 130-Electrode assembly; 131-Electrode body; 132-Electrode tab; 140-Insulating component; 141-First elastic snap; 1411-First snap section; 1412-Second snap section; 1413-First inclined surface; 142-Second elastic snap; 1421-Third snap section; 1422-Fourth snap section; 1423-Second inclined surface; 143-Insulating plate; 144-First insulating boss; 1441-First clearance groove; 145-Second insulating boss; 1451-Second clearance groove; 150-Conductive component; 160-Electrode post; 170-Insulating support component; 171-Connecting part; 1711-First connecting hole; 173-Supporting part; 1731-Second connecting hole; 180-Insulating connector; X-First direction; Y-Second direction; Z-Third direction. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this application, the terms "first," "second," etc., are used to distinguish different objects and should not be construed as indicating or implying a specific order or hierarchy, or implicitly specifying the number of technical features indicated. Therefore, a feature marked "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0039] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In the description of this application, the term "and / or" indicates that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0041] In the description of this application, "parallel" includes not only the case of absolute parallelism, but also the case of approximate parallelism as commonly understood in engineering; similarly, "perpendicular" also includes not only the case of absolute perpendicularity, but also the case of approximate perpendicularity as commonly understood in engineering. For example, if the angle between two directions is 80° to 90°, the two directions can be considered perpendicular; if the angle between two directions is 0° to 10°, the two directions can be considered parallel.

[0042] With the development of battery technology, the safety requirements for individual battery cells are becoming increasingly stringent. To improve the safety of individual battery cells, insulating supports are typically incorporated. These supports constrain the tabs of the electrode assembly, thereby reducing the possibility of short circuits caused by the tabs interfering with the electrode body during the assembly process. However, existing battery cells suffer from the inconvenience of installing these insulating supports, leading to significant installation difficulties and impacting the production efficiency of individual battery cells.

[0043] To address the aforementioned technical problems, embodiments of this application provide a single battery cell, relating to the field of battery technology, primarily used in battery packs for application in electrical devices or energy storage devices. Of course, the single battery cell can also be directly applied to electrical devices or energy storage devices without using a battery pack; therefore, no specific limitations are placed on the application scenarios of the single battery cell.

[0044] For example, electrical devices can be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools. Vehicles can be gasoline-powered cars, natural gas-powered cars, and new energy vehicles, with new energy vehicles including pure electric vehicles, hybrid electric vehicles, and range-extended electric vehicles; spacecraft can be airplanes, rockets, space shuttles, drones, and spacecraft; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys; power tools can be metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers; energy storage devices include energy storage containers and energy storage power stations; no specific restrictions are placed on the types of electrical devices and energy storage devices here.

[0045] like Figures 1 to 3 As shown, the battery cell provided in this embodiment includes: a housing 110, a cover plate 120, a terminal post 160, an electrode assembly 130, an insulating component 140, and an insulating support component 170.

[0046] The cover plate 120 is connected to one end of the housing 110. The electrode post 160 passes through the cover plate 120. The electrode assembly 130 is disposed inside the housing 110 and includes an electrode body 131 and an electrode tab 132 connected to each other. The insulating member 140 is disposed inside the housing 110 and is located on the side of the cover plate 120 facing the electrode body 131. The electrode post 160 passes through the insulating member 140. The insulating support member 170 is disposed inside the housing 110 and is located on the side of the insulating member 140 facing the electrode body 131. The insulating support member 170 includes a support portion 173 and a connecting portion 171 connected to each other. The connecting portion 171 is located at at least one end of the support portion 173 in the length direction and is engaged with the insulating member 140. A portion of the electrode tab 132 is located on the side of the support portion 173 away from the electrode body 131 and is connected to the electrode post 160.

[0047] It should be noted that "a portion of the tab 132 is located on the side of the support 173 away from the electrode body 131 and is connected to the pole post 160" can be understood as: a portion of the tab 132 is bent and located on the side of the support 173 away from the electrode body 131, and this portion of the tab 132 located on the side of the support 173 away from the electrode body 131 is connected to the pole post 160.

[0048] For example, the material of the insulating member 140 and / or the insulating support member 170 can be plastic, ceramic, glass, silicone, etc., without specific limitations.

[0049] It is understood that in the battery cell provided in this embodiment, the insulating support 170 is disposed inside the housing 110 and is located on the side of the insulating member 140 facing the electrode body 131. The insulating support 170 includes a support portion 173 and a connecting portion 171 connected to each other. A part of the tab 132 is located on the side of the support portion 173 away from the electrode body 131 and is connected to the pole post 160 on the cover plate 120, so that the support portion 173 can constrain the tab 132 to reduce the possibility of the tab 132 being inserted into the electrode body 131. At the same time, the connecting portion 171 is located at at least one end in the length direction of the support portion 173 and is engaged with the insulating member 140. The engagement of the connecting portion 171 with the insulating member 140 facilitates the installation of the insulating support 170, reduces the installation difficulty of the insulating support 170, and thus improves the production efficiency of the battery cell.

[0050] like Figures 1 to 3As shown, in one embodiment, the battery cell has a first direction X, the insulating member 140 includes an insulating plate 143, a plurality of first insulating protrusions 144 and second insulating protrusions 145, the electrode post 160 passes through the insulating plate 143, the first insulating protrusions 144 and the second insulating protrusions 145 are connected to the side of the insulating plate 143 facing the electrode body 131, the plurality of first insulating protrusions 144 are spaced apart along the first direction X, the second insulating protrusions 145 are located between two adjacent first insulating protrusions 144 along the first direction X, the connecting part 171 is engaged with the first insulating protrusion 144, and the supporting part 173 is engaged with the second insulating protrusion 145.

[0051] It is understandable that, since the connecting part 171 is engaged with the first insulating boss 144 and the supporting part 173 is engaged with the second insulating boss 145, the insulating support 170 is engaged with the insulating part 140, which makes it easy to install the insulating support 170 on the insulating part 140.

[0052] like Figure 3 As shown, the first insulating boss 144 is provided with a first clearance groove 1441, the second insulating boss 145 is provided with a second clearance groove 1451, the connecting part 171 is provided in the first clearance groove 1441, and part of the supporting part 173 is provided in the second clearance groove 1451.

[0053] It is understandable that the first clearance groove 1441 can avoid the connecting part 171, and the second clearance groove 1451 can avoid a part of the supporting part 173. This can limit the insulating support 170, improve the stability of the insulating support 170, and make the structure more compact, thereby improving the space utilization of the battery cell and thus increasing the energy density of the battery cell.

[0054] like Figure 3 and Figure 4 As shown, the connecting part 171 is further provided with a through first connecting hole 1711, and the first insulating boss 144 is provided with a first elastic buckle 141. The first elastic buckle 141 is located in the first relief groove 1441, and the first elastic buckle 141 engages with the first connecting hole 1711.

[0055] It should be noted that "the connecting part 171 is provided with a through first connecting hole 1711" can be understood as: the first connecting hole 1711 is a through hole.

[0056] Understandably, by engaging the first elastic buckle 141 with the first connecting hole 1711, the first insulating boss 144 is engaged with the connecting part 171, facilitating the installation of the insulating support 170 onto the insulating part 140. Simultaneously, since the first elastic buckle 141 is located within the first clearance groove 1441, this further improves the structural compactness.

[0057] like Figure 4 and Figure 5 As shown, the first elastic buckle 141 further includes a first buckle section 1411 and a second buckle section 1412 connected to each other. The second buckle section 1412 is provided with a first inclined surface 1413. The first buckle section 1411 passes through the first connecting hole 1711. The second buckle section 1412 is located on the side of the connecting part 171 facing the electrode body 131 and abuts against the connecting part 171.

[0058] Understandably, the first latching segment 1411 and the second latching segment 1412 together restrict the movement of the connecting part 171 relative to the first insulating boss 144. The first inclined surface 1413 guides the second latching segment 1412 to slide from the side of the connecting part 171 away from the electrode body 131 along the first connecting hole 1711 to the side of the connecting part 171 facing the electrode body 131, thereby reducing the installation difficulty of the insulating support 170.

[0059] like Figure 3 and Figure 4 As shown, the support portion 173 is further provided with a through second connecting hole 1731, and the second insulating boss 145 is provided with a second elastic buckle 142. The second elastic buckle 142 is disposed in the second relief groove 1451, and the second elastic buckle 142 engages with the second connecting hole 1731.

[0060] It should be noted that "the support part 173 is provided with a through second connecting hole 1731" can be understood as: the second connecting hole 1731 is a through hole.

[0061] Understandably, by engaging the second elastic buckle 142 with the second connecting hole 1731, the second insulating boss 145 is engaged with the support portion 173, facilitating the installation of the insulating support 170 onto the insulating member 140. Simultaneously, since the second elastic buckle 142 is located within the second clearance groove 1451, this further improves the structural compactness.

[0062] like Figure 4 and Figure 6 As shown, the second elastic buckle 142 further includes a third buckle section 1421 and a fourth buckle section 1422 connected to each other. The fourth buckle section 1422 is provided with a second inclined surface 1423. The third buckle section 1421 passes through the second connecting hole 1731. The fourth buckle section 1422 is located on the side of the support portion 173 facing the electrode body 131 and abuts against the connecting portion 171.

[0063] Understandably, the third latching section 1421 and the fourth latching section 1422 work together to restrict the movement of the support 173 relative to the second insulating boss 145. The second inclined surface 1423 guides the fourth latching section 1422 to slide from the side of the support 173 away from the electrode body 131 along the second connecting hole 1731 to the side of the support 173 facing the electrode body 131, thereby reducing the installation difficulty of the insulating support 170.

[0064] like Figure 1 As shown, in one embodiment, the battery cell also has a second direction Y perpendicular to the first direction X. Multiple electrode assemblies 130 are provided, and the multiple electrode assemblies 130 are arranged along the second direction Y. Multiple insulating support members 170 are provided, and the multiple insulating support members 170 are spaced apart along the second direction Y. Each insulating support member 170 is corresponding to a tab 132 of an electrode assembly 130.

[0065] It should be noted that "each insulating support 170 is correspondingly provided with a tab 132 of an electrode assembly 130" can be understood as: there is a one-to-one correspondence between the insulating support 170 and the electrode assembly 130 in terms of quantity. For example, the number of electrode assemblies 130 and / or the number of insulating support 170 can be two, three, four, etc., and no specific limitation is made here.

[0066] It is understandable that when a battery cell is provided with multiple electrode assemblies 130 along the second direction Y, the multiple insulating support members 170 can simultaneously support the tabs 132 of the multiple electrode assemblies 130, thereby reducing the risk of short circuit caused by the tabs 132 being inserted into the electrode body 131.

[0067] like Figure 4 and Figure 7 As shown, the battery cell further includes an insulating connector 180, and two adjacent support portions 173 are connected by the insulating connector 180.

[0068] It is understandable that by setting the insulating connector 180, two adjacent insulating supports 170 can be indirectly connected together to form a stable structure, which can better support the tab 132. At the same time, the insulating connector 180 can further constrain the tab 132, thereby more effectively reducing the risk of short circuit caused by the tab 132 being inserted into the electrode body 131.

[0069] like Figure 1 and Figure 7As shown, further, multiple insulating connectors 180 are provided, and the multiple insulating connectors 180 are arranged at intervals along the first direction X, so that there are multiple connection points between two adjacent insulating supports 170, thereby achieving higher structural stability.

[0070] For example, the number of insulating connectors 180 between two adjacent insulating supports 170 can be two, three, four, five, etc., and no specific limitation is made here.

[0071] like Figure 1 and Figure 2 As shown, in one embodiment, the battery cell further includes a conductive element 150. The battery cell has a first direction X, a second direction Y, and a third direction Z that are perpendicular to each other. A cover plate 120 is connected to one end of the housing 110 along the third direction Z. An insulating element 140 is located on the side of the cover plate 120 along the third direction Z facing the electrode body 131. The conductive element 150 is disposed inside the housing 110 and is located on the side of the insulating element 140 along the third direction Z facing the electrode body. An insulating support 170 is located on the side of the conductive element 150 along the third direction Z facing the electrode body 131. A connecting portion 171 is located at at least one end of the support portion 173 along the first direction X. The conductive element 150 is connected to the electrode post 160. The portion of the tab 132 located on the side of the support portion 173 away from the electrode body 131 is connected to the conductive element 150.

[0072] For example, the conductive element 150 may be a conductive sheet, wire, etc., without specific limitations.

[0073] It is understood that the electrical connection between the electrode assembly 130 and the electrode post 160 is achieved by connecting the conductive element 150 to the portion of the electrode post 160 and the tab 132 located on the side of the support portion 173 away from the electrode body 131.

[0074] For example, when a battery cell has a length direction, a width direction, and a height direction, the first direction X is parallel to the length direction, the second direction Y is parallel to the width direction, and the third direction Z is parallel to the height direction.

[0075] To address the aforementioned technical problems, embodiments of this application also provide a battery pack, including the battery cells from any of the above embodiments.

[0076] It is understood that since the battery pack provided in this embodiment has the battery cell in any of the embodiments of the first aspect, it has all the beneficial effects of the battery cell, which will not be described in detail here.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A battery cell, characterized in that, include: Shell (110); A cover plate (120) is connected to one end of the housing (110); A pole post (160) is inserted through the cover plate (120); An electrode assembly (130) is disposed within the housing (110) and includes an electrode body (131) and a tab (132) connected to each other; An insulating element (140) is disposed inside the housing (110) and located on the side of the cover plate (120) facing the electrode body (131), and the pole post (160) passes through the insulating element (140); An insulating support (170) is disposed within the housing (110) and located on the side of the insulating member (140) facing the electrode body (131). The insulating support (170) includes a support portion (173) and a connecting portion (171) connected to each other. The connecting portion (171) is located at at least one end of the support portion (173) along its length and is engaged with the insulating member (140). A portion of the tab (132) is located on the side of the support portion (173) away from the electrode body (131) and is connected to the pole post (160).

2. The battery cell according to claim 1, characterized in that, The battery cell has a first direction (X). The insulating member (140) includes an insulating plate (143), a plurality of first insulating bosses (144) and a second insulating boss (145). The electrode post (160) passes through the insulating plate (143). The first insulating bosses (144) and the second insulating bosses (145) are connected to the side of the insulating plate (143) facing the electrode body (131). The plurality of first insulating bosses (144) are spaced apart along the first direction (X). The second insulating bosses (145) are located between two adjacent first insulating bosses (144) along the first direction (X). The support part (173) is engaged with the second insulating bosses (145). The connecting part (171) is engaged with the first insulating bosses (144).

3. The battery cell according to claim 2, characterized in that, The first insulating boss (144) is provided with a first clearance groove (1441), the second insulating boss (145) is provided with a second clearance groove (1451), the connecting part (171) is provided in the first clearance groove (1441), and part of the supporting part (173) is provided in the second clearance groove (1451).

4. The battery cell according to claim 3, characterized in that, The connecting part (171) is provided with a through first connecting hole (1711), and the first insulating boss (144) is provided with a first elastic buckle (141). The first elastic buckle (141) is located in the first relief groove (1441), and the first elastic buckle (141) engages with the first connecting hole (1711).

5. The battery cell according to claim 4, characterized in that, The first elastic buckle (141) includes a first buckle segment (1411) and a second buckle segment (1412) connected to each other. The second buckle segment (1412) is provided with a first inclined surface (1413). The first buckle segment (1411) passes through the first connecting hole (1711). The second buckle segment (1412) is located on the side of the connecting part (171) facing the electrode body (131) and abuts against the connecting part (171).

6. The battery cell according to claim 3, characterized in that, The support part (173) is provided with a through second connecting hole (1721), and the second insulating boss (145) is provided with a second elastic buckle (142). The second elastic buckle (142) is disposed in the second relief groove (1451), and the second elastic buckle (142) engages with the second connecting hole (1721).

7. The battery cell according to any one of claims 2 to 6, characterized in that, The battery cell also has a second direction (Y) perpendicular to the first direction (X). Multiple electrode assemblies (130) are provided, and the multiple electrode assemblies (130) are arranged along the second direction (Y). Multiple insulating support members (170) are provided, and the multiple insulating support members (170) are spaced apart along the second direction (Y). Each insulating support member (170) is corresponding to the tab (132) of one electrode assembly (130).

8. The battery cell according to claim 7, characterized in that, The battery cell also includes an insulating connector (180), and two adjacent support portions (173) are connected through the insulating connector (180).

9. The battery cell according to claim 8, characterized in that, The insulating connector (180) is provided in multiple ways, and the multiple insulating connectors (180) are arranged at intervals along the first direction (X).

10. A battery pack, characterized in that, Includes the battery cell according to any one of claims 1 to 9.

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