Battery and electric device

Abstract

The utility model relates to the technical field of batteries, in particular to a battery and an electric device. The battery comprises a pole group, a supporting frame and at least one spacer, the pole group comprises at least two pole group split bodies, the supporting frame is provided with a containing cavity, the pole group is arranged in the containing cavity, and the spacer extends in the first direction and is arranged between the pole group split bodies arranged in the second direction; the size of the distance piece in the first direction is adjustable, and / or the size of the supporting frame in the first direction is adjustable. The length or width of a single pole group split body can be shortened, bending deformation of the pole group split body due to the fact that the pole group split body is too long or too wide is avoided, in addition, the pole group is supported and protected through the supporting frame and the distance pieces, gaps between the pole group split bodies are avoided, and the structural stability of the battery is improved; by adjusting the sizes of the connecting pieces and the distance pieces in the first direction, the supporting frame and the distance pieces can support the battery cells of various models, the production cost is reduced, and the universality is good.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery and an electrical device. Background Technology

[0002] Batteries, as an important energy storage device, are widely used in mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and power tools, etc.

[0003] In the development of battery technology, in order to improve the space utilization of batteries, current batteries are developing towards making the electrode assembly longer / wider. When the electrode assembly is made longer / wider, due to its strength issues, the electrode assembly often bends and deforms, and the electrode sheets may have defects such as wrinkles, deformation, delamination, and breakage, resulting in a decrease in yield. In addition, when the electrode assembly is too long / wide, the electrode assembly is prone to collision with the casing during the casing process, which can cause damage and make it difficult to install the electrode assembly into the casing.

[0004] To address the aforementioned technical issues, some batteries have been provided in related technologies. These batteries reduce the size of individual electrode components by dividing the electrode components into multiple electrode components connected in series. They also prevent direct contact between the electrode components and the casing by setting a support frame around the electrode components, thus avoiding damage to the electrode components. Furthermore, they separate the electrode components by setting spacers between them.

[0005] However, since the dimensions of the support frame and spacers are fixed, when the pole group is changed to a different specification, a support frame and spacers that are compatible with its dimensions need to be customized separately, resulting in poor versatility of the support frame and spacers and increased production costs.

[0006] This section provides background information related to this application, which is not necessarily prior art. Utility Model Content

[0007] The purpose of this utility model is to provide a battery and an electrical device that can shorten the length or width of a single electrode assembly, avoiding bending deformation due to excessive length or width of the electrode assembly. In addition, the support frame and spacers provide support and protection for the electrode assembly, preventing gaps between the electrode assembly components, improving the structural stability of the battery, and adapting to electrode assemblies of different specifications, thus having good versatility.

[0008] To achieve the above objectives, the following technical solution is provided:

[0009] A battery comprising:

[0010] An electrode assembly comprises at least two separate electrode components;

[0011] A support frame having a receiving cavity, wherein the pole assembly is disposed within the receiving cavity;

[0012] At least one spacer extends along a first direction and is disposed between the polar components arranged along a second direction, the first direction and the second direction being at an angle.

[0013] The spacer is adjustable in size along the first direction and / or the support frame is adjustable in size along the first direction.

[0014] As an optional solution, the spacer includes a first part and a second part, wherein the first part and the second part are threadedly connected.

[0015] As an optional solution, the support frame includes two side plates spaced apart along a second direction and two connectors spaced apart along a first direction, wherein the side plates and the connectors are connected end to end to form the receiving cavity.

[0016] As an optional solution, the side plate includes:

[0017] The first main body plate abuts against the side of the pole group along the first direction;

[0018] The connecting parts are disposed at both ends of the first main body plate along the first direction, and the connecting parts and the connecting members are detachably connected.

[0019] As an optional solution, the connector includes an adjustment structure, the adjustment structure including connecting posts and a plurality of connecting holes spaced apart along the first direction, and the first main body plate includes:

[0020] The first section and the second section are provided, with a plurality of connecting holes arranged at intervals along the first direction on the first section, and a connecting post on the second section, wherein the connecting post can be inserted into any of the connecting holes.

[0021] As an optional solution, the number of connecting posts is multiple, and the multiple connecting posts are arranged at intervals along the first direction, with the spacing between two adjacent connecting posts being equal to the spacing between two adjacent connecting holes.

[0022] As an optional solution, the number of adjustment structures is two, and the two adjustment structures are arranged at intervals along a third direction, with the first direction, the second direction and the third direction being set at an angle to each other.

[0023] As an optional solution, the first section is provided with a first settling tank, and at least a portion of the second section is located within the first settling tank;

[0024] And / or, the second portion is provided with a second settling tank, and at least a portion of the first portion is located within the second settling tank.

[0025] As an optional feature, the cross-sectional shape of the spacer is an irregular polygon.

[0026] An electrical device includes a main body and the battery described above, the battery being configured to supply power to the main body of the electrical device.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] The battery provided by this utility model divides the electrode assembly into multiple electrode components to shorten the length or width of each individual electrode component, thereby avoiding bending and deformation of the electrode assembly due to excessive length or width, and preventing problems such as wrinkles, deformation, delamination, and breakage of the electrode sheets. By placing the electrode assembly within the receiving cavity of the support frame, that is, by providing a support frame on the side of the electrode assembly, the support frame contacts the shell when the electrode assembly is inserted into the shell, avoiding direct contact between the electrode assembly and the shell, and thus preventing damage to the electrode assembly during insertion into the shell. The support frame and spacers provide support and protection for the electrode assembly, improving the structural stability of the battery and preventing deformation and damage to the electrode assembly. By adjusting the dimensions of the connectors and spacers along the first direction, the support frame and spacers can support various types of battery cells, reducing production costs and providing good versatility.

[0029] The electrical device provided by this utility model, by using the aforementioned battery, has a high battery capacity and voltage, and can be adapted to different sizes of electrode groups, thereby improving the service life and battery life of the electrical device. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0031] Figure 1 An exploded view of the battery provided in Embodiment 1 of this utility model;

[0032] Figure 2 This is a schematic diagram of the support frame and pole assembly provided in Embodiment 1 of this utility model;

[0033] Figure 3 This is a structural schematic diagram of the support frame and fixing sleeve provided in Embodiment 1 of this utility model;

[0034] Figure 4 This is a schematic diagram of the support frame provided in Embodiment 1 of the present utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the fixing sleeve provided in Embodiment 1 of this utility model;

[0036] Figure 6 This is an exploded view of the battery provided in Embodiment 2 of this utility model;

[0037] Figure 7 This is a schematic diagram of the structure of the first component and the support frame provided in Embodiment 2 of this utility model;

[0038] Figure 8 An exploded view of the support frame provided in Embodiment 2 of this utility model;

[0039] Figure 9 This is a schematic diagram of the end cap provided in Embodiment 2 of this utility model;

[0040] Figure 10 This is a structural schematic diagram of the vehicle provided in Embodiment 3 of this utility model.

[0041] Figure label:

[0042] 1000, vehicles;

[0043] 100. Battery;

[0044] 10. Casing; 11. First explosion-proof hole; 12. Second explosion-proof hole;

[0045] 20. End cap; 21. Cover plate; 22. Support protrusion; 23. Insulating sticker; 231. Second clearance hole;

[0046] 30. Electrode group; 31. Electrode group components;

[0047] 40. Insulating film; 41. First clearance hole;

[0048] 50. Support frame; 51. Side plate; 511. Second main plate; 5111. Slot; 5112. Insertion hole; 512. Second protrusion; 52. Connector; 521. First main plate; 52101. Electrode hole; 5211. First section; 52111. Connecting post; 52112. First recess; 5212. Second section; 52121. Connecting hole; 52122. Second recess; 522. Connecting part; 5221. Second insertion part; 52211. Guide slope; 523. First protrusion; 53. Partition;

[0049] 60. Spacer; 61. Main body; 611. First split part; 6111. Adjustment part; 612. Second split part; 6121. Adjustment hole; 62. First insertion part;

[0050] 200, controller; 300, motor. Detailed Implementation

[0051] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0052] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this application.

[0053] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "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 that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0057] Example 1

[0058] like Figure 1 As shown, this embodiment provides a battery 100, which includes a housing 10 and an electrode assembly 30. The electrode assembly 30 is disposed within the housing 10, and the housing 10 serves to support and protect the electrode assembly 30. The housing 10 can be made of plastic or metal. When the housing 10 is made of metal, it has better heat dissipation performance, higher strength, and can provide support itself.

[0059] In this embodiment, the housing 10 has openings at both ends along the first direction. The battery 100 also includes two end caps 20, which are respectively placed over the corresponding openings. The electrode assembly 30 is connected to the end caps 20, and the end caps 20 are connected to the main body of the external electrical device, thereby enabling the battery 100 to supply power to the main body of the electrical device. In other embodiments, the number of end caps 20 may be one, with one opening in the housing 10 and the end cap 20 covering the opening. In this embodiment, the first direction is the length direction of the housing 10.

[0060] To prevent the electrode assembly 30 from bending or deforming, or the electrode sheets from wrinkling or breaking due to excessive length or width, the electrode assembly 30 includes multiple electrode components 31. These multiple electrode components 31 are connected in series, parallel, or mixed connection to improve the capacity and voltage of the battery 100. Mixed connection refers to the multiple electrode components 31 being connected in both series and parallel configurations.

[0061] The electrode component 31 in this application can be formed by winding or by stacking. Generally, the electrode component 31 includes at least a positive electrode, a separator, and a negative electrode.

[0062] like Figures 1-3 As shown, the battery 100 also includes a support frame 50 and at least one spacer 60. The support frame 50 has a receiving cavity, and the electrode assembly 30 is disposed within the receiving cavity. The spacer 60 extends along a first direction, and at least one spacer 60 is spaced apart within the support frame 50 to divide the receiving cavity into at least two separate cavities arranged along a second direction. Each separate cavity is provided with an electrode assembly 31. By placing the electrode assembly 30 within the receiving cavity of the support frame 50, that is, by providing the support frame 50 on the side of the electrode assembly 30, when the electrode assembly 30 is inserted into the casing, the support frame 50 contacts the casing 10, preventing the electrode assembly 30 from directly contacting the casing 10, thereby preventing damage to the electrode assembly 30 when it is inserted into the casing. The support frame 50 and the spacer 60 provide support and protection for the electrode assembly 30, improving the structural stability of the battery 100, preventing deformation and damage to the electrode assembly 30, and extending the service life of the battery 100.

[0063] In this embodiment, the first direction is the width direction of the battery 100, and the second direction is the length direction of the battery 100; that is, the first direction and the second direction are perpendicular. In other embodiments, the first direction and the second direction may also be set at other angles. In another embodiment, the first direction may also be the length direction of the battery 100, and the second direction may also be the width direction of the battery 100.

[0064] Optionally, the cross-sectional shape of the spacer 60 is non-circular and can rotate around its axis. That is, the distance from the axis of the spacer 60 to the edge of the spacer 60 is different. When there is a gap between the electrode component 31 and the support frame 50 along the second direction, the spacer 60 can be rotated to make the electrode component 31 abut against the support frame 50 and the spacer 60, so as to prevent the electrode component 31 from shaking in the housing 10, avoid damage to the electrode component 31, breakage of the electrode tab, etc., and improve the service life of the battery 100.

[0065] It should be explained that the non-circular shape can be an ellipse or a polygon, or a regular pattern formed by alternating straight lines and curves, or an irregular pattern formed by straight lines and curves, or a regular or irregular pattern formed by curves. In this embodiment, the cross-section of the spacer 60 is an irregular polygon. By having different surfaces of the spacer 60 make surface contact with the pole component 31, the purpose of adjusting the assembly gap between the pole component 31 and the support frame 50 is achieved, avoiding line contact between the spacer 60 and the pole component 31 and thus preventing damage to the pole component 31.

[0066] The support frame 50 includes two connectors 52 spaced apart along a second direction and two side plates 51 spaced apart along a first direction. The connectors 52 and the side plates 51 are connected end to end to form the aforementioned receiving cavity. The electrode assembly 30 is located in the receiving cavity to maintain the shape of the electrode assembly 30, thereby supporting and protecting the electrode assembly 30, preventing the electrode assembly 30 from being squeezed and deformed, and enhancing the impact resistance of the electrode assembly 30.

[0067] Specifically, the connector 52 includes a first main body plate 521 and a connecting portion 522. The first main body plate 521 abuts against the side of the electrode assembly 30 along the second direction, and the connecting portion 522 is disposed at both ends of the first main body plate 521 along the first direction. The connecting portion 522 and the side plate 51 are detachably connected. Specifically, the connecting portion 522 is provided with a second insertion portion 5221, and the side plate 51 is provided with a slot 5111. The second insertion portion 5221 is inserted into the slot 5111 to achieve a detachable connection between the first connector 52 and the side plate 51, thereby improving the assembly efficiency of the connector 52 and the side plate 51. Of course, in other embodiments, the slot 5111 can be disposed on the connecting portion 522, and the second insertion portion 5221 can be disposed on the side plate 51, achieving the same effect.

[0068] Optionally, the second insertion part 5221 is provided with a guide slope 52211, so that the entire second insertion part 5221 is formed into a wedge structure. The second insertion part 5221 can be inserted into the slot 5111 along the guide slope 52211, so that the second insertion part 5221 can slide into the slot 5111 better, so as to facilitate the rapid assembly of the second insertion part 5221 and the slot 5111.

[0069] Optionally, the first main body plate 521 is provided with a tab hole 52101. The positive tab of the electrode group 30 passes through the tab hole 52101 of one of the first main body plates 521 and is connected to one of the end caps 20. The negative tab passes through the tab hole 52101 of the other first main body plate 521 and is connected to the other end cap 20. The tab hole 52101 realizes the avoidance function of the positive and negative tabs of the electrode group 30.

[0070] Optionally, the connector 52 further includes a plurality of first protrusions 523, which are disposed on the outer side of the first main body plate 521. In this embodiment, the first main body plate 521 is elongated, the first protrusions 523 extend along the width direction of the first main body plate 521, and the plurality of first protrusions 523 are arranged at intervals along the length direction of the first main body plate 521. On the one hand, this can improve the overall strength of the first main body plate 521; on the other hand, it can form a gap between the first main body plate 521 and the end cap 20, which facilitates venting and thus improves the safety of the battery 100.

[0071] Optionally, the side plate 51 includes a second main plate 511 and a second protrusion 512. The second main plate 511 abuts against the side of the electrode assembly 30 along the first direction. The second protrusion 512 is disposed on the outer side of the second main plate 511 and abuts against the inner wall of the housing 10. By providing the second protrusion 512, a gap can be formed between the second main plate 511 and the housing 10. This gap is conducive to venting and further improves the safety performance of the battery 100.

[0072] Optionally, there are two second protrusions 512, which are arranged at intervals along a third direction. At least a portion of the connector 52 (specifically the connecting portion 522) is located between the two second protrusions 512. When the connector 52 and the side plate 51 are assembled, the second protrusions 512 can provide guidance for the connecting portion 522 to avoid the connecting portion 522 from being misaligned when assembled with the side plate 51, thereby further improving the assembly efficiency of the connector 52 and the side plate 51.

[0073] In this embodiment, the third direction is the thickness direction of the battery 100. That is, the first direction, the second direction and the third direction are perpendicular to each other. In other embodiments, the first direction, the second direction and the third direction are set at other included angles.

[0074] Optionally, the side plate 51 is made of insulating material to achieve insulation between the electrode group 30 and the inner wall of the casing 10, thereby improving the safety performance of the battery 100.

[0075] Optionally, the side panel 51 is made by injection molding, which has high production efficiency and good product quality.

[0076] In this embodiment, each split cavity is provided with two polarity components 31 arranged along the first direction. The support frame 50 also includes a partition 53, which is sandwiched between two adjacent polarity components 31 arranged along the first direction to separate the polarity components 31 and prevent short circuits from occurring inside the polarity group 30. In other embodiments, the number of polarity components 31 in each split cavity can be one, three, or more, which can be adaptively selected according to actual needs.

[0077] like Figure 1 , Figure 7 and Figure 8As shown, the spacer 60 includes a main body 61 and a first insertion portion 62. The main body 61 extends along a first direction and is disposed between and abuts against the polar component 31 arranged along a second direction. The first insertion portion 62 is disposed at both ends of the main body 61 along the first direction. The support frame 50 (specifically, on the second main body plate 511) is provided with insertion holes 5112. The first insertion portion 62 is inserted into the insertion hole 5112 to facilitate the rapid assembly of the spacer 60 and the side plate 51. In other embodiments, the first insertion portion 62 is disposed on the inner wall of the side plate 51, and the main body 61 is provided with insertion holes 5112, which can achieve the same effect.

[0078] Optionally, the cross-section of the first plug-in portion 62 is a regular polygon, and the shape of the plug hole 5112 is adapted to the first plug-in portion 62. By setting the first plug-in portion 62 as a regular polygon, on the one hand, the plug hole 5112 and the first plug-in portion 62 can still be plugged in and engaged after the main body portion 61 is rotated at a certain angle; on the other hand, after the spacer 60 and the side plate 51 are assembled, the spacer 60 is prevented from rotating relative to the side plate 51.

[0079] Optionally, the spacer 60 is a hollow structure to reduce the weight of the spacer 60, thereby achieving a lightweight design of the battery 100.

[0080] In related technologies, the dimensions of the support frame and spacers are fixed. When the pole group is changed to a different specification, a support frame and spacers that are compatible with its dimensions need to be customized separately. This results in poor versatility of the support frame and spacers and increased production costs.

[0081] To solve the above problems, the dimensions of the connector 52 along the first direction are adjustable, and / or the dimensions of the spacer 60 along the first direction are adjustable. By adjusting the dimensions of the connector 52 and the spacer 60 along the first direction, the support frame 50 and the spacer 60 can support various types of battery cells, reduce production costs, and have good versatility.

[0082] Specifically, the connector 52 includes an adjustment structure, which includes a connecting post 52111 and a plurality of connecting holes 52121 spaced apart along the first direction. The first main body plate 521 includes a first portion 5211 and a second portion 5212. The plurality of connecting holes 52121 spaced apart along the first direction are disposed on the first portion 5211, and the connecting post 52111 is disposed on the second portion 5212. The connecting post 52111 can be inserted and engaged with any of the connecting holes 52121. By inserting and engaging the connecting post 52111 with different connecting holes 52121, the size of the connector 52 in the first direction can be adjusted, and it can be adaptively adjusted according to different sizes of the pole group 30, thus having good versatility.

[0083] Optionally, there are multiple connecting posts 52111, which are arranged at intervals along the first direction. The spacing between two adjacent connecting posts 52111 is equal to the spacing between two adjacent connecting holes 52121, so as to improve the connection stability between the first part 5211 and the second part 5212.

[0084] Optionally, the number of adjustment structures is two, and the two adjustment structures are arranged at intervals along the third direction. That is, the two adjustment structures are set on both sides of the tab hole 52101 along the third direction to further improve the connection stability between the first part 5211 and the second part 5212, and to make the force on the first part 5211 and the second part 5212 more uniform.

[0085] Optionally, the first portion 5211 is provided with a first sinker 52112, and / or the second portion 5212 is provided with a second sinker 52122. The first sinker 52112 is formed by a portion of the outer side of the first portion 5211 recessed inward, and the second sinker 52122 is formed by a portion of the inner side of the second portion 5212 recessed outward. The portion of the second portion 5212 with the connecting hole 52121 is located in the first sinker 52112, and the portion of the first portion 5211 with the connecting post 52111 is located in the second sinker 52122, so as to reduce the space occupied by the first portion 5211 and the second portion 5212 in the first direction.

[0086] like Figure 1 , Figure 7 and Figure 8 As shown, the spacer 60 includes a first part 611 and a second part 612. The first part 611 is provided with an adjustment part 6111, and the second part 612 is provided with an adjustment hole 6121. The adjustment part 6111 is provided with an external thread, and the adjustment hole 6121 is provided with an external thread. The first part 611 and the second part 612 are threadedly connected. The size of the spacer 60 in the first direction is adjusted by the depth to which the adjustment part 6111 is screwed into the adjustment hole 6121. The operation is simple.

[0087] like Figure 1 and Figure 9 As shown, the end cap 20 includes a cover plate 21 and a support protrusion 22. The cover plate 21 is elongated, and the support protrusion 22 is disposed on both sides of the cover plate 21 along its length. The support protrusion 22 extends along the width of the cover plate 21 and abuts against the support frame 50 (specifically, the first main body plate 521). By providing the support protrusion 22 on the cover plate 21, on the one hand, the strength of the cover plate 21 in the width direction can be improved, the deformation resistance of the cover plate 21 can be improved, and the deformation of the cover plate 21 can be avoided; on the other hand, a gap can be formed between the cover plate 21 and the first side plate 51, which facilitates venting and thus improves the safety of the battery 100.

[0088] Optionally, the end cap 20 also includes an insulating sticker 23, which is affixed to the side of the cover plate 21 facing the pole group 30 to improve the insulation effect between the cover plate 21 and the pole group 30. The insulating sticker 23 is relatively thin to avoid occupying too much space inside the housing 10, thereby improving the space utilization of the housing 10.

[0089] Optionally, the insulating sticker 23 is provided with a second clearance hole 231, and the electrode tab passes through the second clearance hole 231 to avoid the insulating sticker 23 interfering with the connection between the electrode tab and the cover plate 21.

[0090] like Figure 1 As shown, the housing 10 has two first explosion-proof holes 11 on one side along a first direction and a second explosion-proof hole 12 on one side along a third direction. The two first explosion-proof holes 11 are arranged at intervals along a second direction. Each of the first explosion-proof holes 11 and the second explosion-proof hole 12 is equipped with an explosion-proof valve. When an internal energy anomaly occurs in the battery 100, the gas pressure inside the housing 10 reaches the explosion-proof threshold of the explosion-proof valve. The explosion-proof valve then opens, and gas is discharged from the first explosion-proof hole 11 and the second explosion-proof hole 12, releasing the internal pressure of the housing 10 and preventing thermal runaway and explosion / fire of the battery 100, thus improving the safety of the battery 100. In other embodiments, the number and location of the first explosion-proof holes 11 and the second explosion-proof holes 12 can be adaptively adjusted according to actual needs.

[0091] like Figure 1 As shown, the battery 100 also includes an insulating film 40. The insulating film 40 covers the outer periphery of the electrode assembly 30 and the support frame 50 and is located inside the housing 10. After the electrode assembly 30 and the support frame 50 are assembled, the insulating film 40 is applied, and then the electrode assembly 30 and the support frame 50 covered with the insulating film 40 are installed into the housing 10. The insulating film 40 improves the insulation protection capability of the electrode assembly 30. Specifically, the insulating film 40 is a Mylar film.

[0092] Optionally, the insulating film 40 is provided with a first clearance hole 41 on its side along the second direction so that the electrode tab can extend out of the first clearance hole 41.

[0093] Optionally, the insulating film 40 is provided with slits, and the first explosion-proof hole 11 and the second explosion-proof hole 12 are respectively positioned opposite to the slits and are provided in a one-to-one correspondence, so that the gas in the electrode group 30 can be quickly discharged through the slits.

[0094] Example 2

[0095] This embodiment provides an electrical device, which includes a main body and a battery 100 provided in Embodiment 1. The battery 100 can provide power to the main body of the electrical device, thereby enabling the main body of the electrical device to automatically complete preset actions through power, ensuring good performance of the main body of the electrical device, and ensuring the service life and safety performance of the electrical device.

[0096] Specifically, the main body of the electrical device can be a vehicle, mobile phone, portable device, laptop, ship, spacecraft, electric toy, or power tool, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles or hybrid electric vehicles, etc.; spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; power tools include 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, or electric planers, etc. This embodiment does not limit the main body of the aforementioned electrical device.

[0097] The following examples are for illustrative purposes only. Figure 10 As shown, an embodiment of this application will be described using a vehicle 1000 as an example of an electrical device. A battery 100 is disposed inside the vehicle 1000, and the battery 100 can be located at the bottom, front, or rear of the vehicle 1000. There can be one or more batteries 100, and these batteries can be connected in series, in parallel, or in a mixed configuration. A mixed configuration means that some of the batteries 100 are connected in series and others in parallel.

[0098] Battery 100 can be used to power vehicle 1000, for example, battery 100 can be used as the operating power source for vehicle 1000. Vehicle 1000 may also include controller 200 and motor 300, controller 200 is used to control battery 100 to power motor 300, for example, for the power needs of vehicle 100 during start-up, navigation and driving.

[0099] In some embodiments of this application, the battery 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0100] Note that in the description of this specification, the references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. 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.

[0101] The above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A battery, characterized by, include: The electrode group (30) includes at least two electrode components (31); The support frame (50) has a receiving cavity, and the pole assembly (30) is disposed in the receiving cavity; At least one spacer (60) extends along a first direction and is disposed between the polar component sub-groups (31) arranged along a second direction at an angle to the second direction; The spacer (60) is adjustable in size along the first direction, and / or the support frame (50) is adjustable in size along the first direction.

2. The battery of claim 1, wherein, The spacer (60) includes a first part (611) and a second part (612), wherein the first part (611) and the second part (612) are threadedly connected.

3. The battery of claim 1, wherein, The support frame (50) includes two side plates (52) spaced apart along a second direction and two connectors (51) spaced apart along a first direction. The side plates (52) and the connectors (51) are connected end to end to form the receiving cavity.

4. The battery of claim 3, wherein, The side plate (52) includes: The first main body plate (521) abuts against the side of the pole group (30) along the first direction; The connecting part (522) is disposed at both ends of the first main body plate (521) along the first direction, and the connecting part (522) and the connecting member (51) are detachably connected.

5. The battery of claim 4, wherein, The connector (51) includes an adjustment structure, which includes a connecting post (52111) and a plurality of connecting holes (52121) spaced apart along the first direction. The first main body plate (521) includes: The first part (5211) and the second part (5212) are provided with a plurality of connecting holes (52121) arranged at intervals along the first direction on the first part (5211) and a connecting post (52111) is provided on the second part (5212). The connecting post (52111) can be inserted and engaged with any of the connecting holes (52121).

6. The battery of claim 5, wherein, The number of connecting posts (52111) is multiple, and the multiple connecting posts (52111) are arranged at intervals along the first direction. The distance between two adjacent connecting posts (52111) is equal to the distance between two adjacent connecting holes (52121).

7. The battery of claim 5, wherein, The number of adjustment structures is two, and the two adjustment structures are arranged at intervals along a third direction, with the first direction, the second direction and the third direction being set at an angle to each other.

8. The battery of claim 5, wherein, The first portion (5211) is provided with a first settling tank (52112), and at least a portion of the second portion (5212) is located within the first settling tank (52112); And / or, the second portion (5212) is provided with a second settling tank (52122), at least a portion of the first portion (5211) is located within the second settling tank (52122).

9. The battery according to any one of claims 1 to 8, characterized in that, The cross-sectional shape of the spacer (60) is an irregular polygon.

10. An electric power using device comprising an electric power using device main body, characterized by The electrical device further includes a battery as described in any one of claims 1-9, the battery being configured to supply power to the main body of the electrical device.

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