Battery and electric device

Abstract

The invention relates to the technical field of batteries, in particular to a battery and an electric device. The battery comprises a pole group and a partition plate support, the pole group comprises two pole group split bodies, the two pole group split bodies are arranged in the first direction, the sides, facing each other, of the two pole group split bodies are each provided with at least two tabs, and the at least two tabs of each pole group split body are arranged in the second direction; the tabs on the sides, facing each other, of the two pole group split bodies are connected in a one-to-one correspondence mode, the partition plate support is arranged between the two pole group split bodies, the partition plate support is provided with at least two protection grooves distributed in the second direction, at least parts of the tabs are located in the corresponding protection grooves, and the purpose that the length of the single pole group split body is shortened is achieved; the tabs on the sides, facing each other, of the two pole group split bodies are connected in a one-to-one correspondence manner, so that the overcurrent area of the two pole group split bodies is increased, and the internal resistance of the battery is reduced; external confluence and mounting structures of the battery are reduced through the partition plate bracket, so that the space utilization rate of the battery is improved, and the overall capacity of the battery is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a battery and an electrical device. Background Art

[0002] Batteries are widely used in electronic devices such as mobile phones, laptops, electric vehicles, electric airplanes, electric boats, electric toy cars, electric toy boats, electric toy airplanes and power tools, etc.

[0003] In the development of battery technology, in order to improve the space utilization of battery packs, current batteries are developing in the direction of lengthening the electrode groups. When the electrode groups are lengthened, due to their strength issues, they often bend and deform, and the electrode sheets will experience defects such as wrinkling, deformation, layer cross-linking, and fracture, resulting in a decrease in yield. In order to solve the above technical problems, some related technologies also provide some batteries. By setting multiple electrode groups connected in series inside the battery shell, two adjacent electrode groups are connected by a connector, which increases the number of structural parts of the battery, occupies battery space, and increases production costs. In addition, when the size of the electrode group is large and the number of electrode sheets is large, the two adjacent electrode groups are connected by only one connector, resulting in a large internal resistance of the battery.

[0004] Therefore, there is an urgent need for a battery and an electrical device to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a battery and an electrical device, which can shorten the length of a single pole group component; connect the pole ears of the two pole group components on one side facing each other in a one-to-one correspondence to increase the flow area of the two pole group components and reduce the internal resistance of the battery; reduce the external convergence and installation structure of the battery through the partition bracket, improve the space utilization of the battery, and thus increase the overall capacity of the battery.

[0006] To achieve the above objectives, the following technical solutions are provided:

[0007] A battery comprising:

[0008] A pole group, comprising two pole group members, the two pole group members are arranged along a first direction, the two pole group members are each provided with at least two pole lugs on one side facing each other, the at least two pole lugs of each pole group member are arranged along a second direction, and the pole lugs on the one side facing each other of the two pole group members are connected in a one-to-one correspondence;

[0009] A partition bracket is arranged between the two pole group components, and the partition bracket is provided with at least two protective grooves arranged along the second direction. At least part of the pole ear is located in the corresponding protective groove, and the first direction and the second direction are arranged at an angle.

[0010] As an optional solution, the dimension of the protective groove in the first direction is W1, and W1 is greater than or equal to 10 mm and less than or equal to 25 mm.

[0011] As an optional solution, the battery further includes:

[0012] The side plate bracket is connected to the partition bracket, and separates the side plate bracket into two accommodating cavities arranged along the first direction, and the pole group is separately arranged in the corresponding accommodating cavities.

[0013] As an optional solution, the side panel bracket includes two side panel splits arranged opposite to each other along the first direction, and the partition bracket includes two partition splits arranged along the first direction. The partition splits and the corresponding side panel splits together enclose the accommodating cavity.

[0014] As an optional solution, the partition body includes two partitions arranged along the second direction, and the partitions include:

[0015] A first connecting portion, separately connected to the side panel;

[0016] At least one supporting portion is formed by at least a portion of the first connecting portion extending toward the interior of the accommodating cavity along the first direction, and the protective groove passes through the supporting portion and the first connecting portion.

[0017] As an optional solution, the distance between two adjacent support portions along the second direction is L, and L is greater than 15 mm; and / or

[0018] A dimension of the first connecting portion in the first direction is W2, and W2 is greater than or equal to 1 mm and less than or equal to 2.5 mm.

[0019] As an optional solution, the side panel bracket includes two side panel splits arranged opposite to each other along the first direction, and the partition bracket includes a first split and a second split arranged along a third direction, the first split is connected to one of the side panel splits, and the second split is connected to the other side panel split, and the first direction, the second direction and the third direction are arranged at an angle to each other.

[0020] As an optional solution, the first split body includes a second connecting portion and at least two extending portions arranged along the second direction, the second connecting portion is separately connected to one of the side panels, and the extending portion is formed by extending at least part of the second connecting portion along the first direction;

[0021] The second split includes a third connecting portion and at least two support platforms arranged along the second direction. The third connecting portion is connected to the other side panel split. The support platform is formed by extending at least part of the third connecting portion along the first direction. The support platform and the extension portion are arranged in a one-to-one correspondence, and the support platform and the extension portion together form the protective groove.

[0022] As an optional solution, the extension portion is provided with a first through slot, and the first through slot passes through the extension portion along the third direction.

[0023] An electric device includes an electric device body, and the electric device also includes the above-mentioned battery, wherein the battery is configured to supply power to the electric device body.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The battery provided by the present invention divides the electrode group into two electrode group components so as to shorten the length of a single electrode group component, thereby avoiding bending and deformation of the electrode group and avoiding problems such as wrinkling, deformation, layer cross-linking, and fracture of the electrode sheet; at least two electrode ears are provided along the second direction on the side of the two electrode group components facing each other, and the electrode ears on the side of the two electrode group components facing each other are connected one-to-one to increase the flow area of the two electrode group components and reduce the internal resistance of the battery; in addition, the two electrode group components are separated by a partition bracket, which reduces the external convergence and installation structure of the battery, improves the space utilization of the battery, and thus improves the overall capacity of the battery.

[0026] The electric device provided by the present invention, by applying the above-mentioned battery, has a higher battery capacity and a higher voltage, and reduces the internal resistance of the battery, thereby improving the endurance of the electric device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0028] Figure 1 An exploded view of a battery provided in Example 1 of the present invention;

[0029] Figure 2 A schematic structural diagram of a side panel support and a partition support provided in the first embodiment of the present invention;

[0030] Figure 3 A partial enlarged view of the side panel bracket and the partition panel bracket provided in the first embodiment of the present invention;

[0031] Figure 4 An exploded view of a pole group provided in Example 1 of the present invention;

[0032] Figure 5 An exploded view of a battery provided in Example 2 of the present invention;

[0033] Figure 6 A schematic structural diagram of a side plate bracket and a partition plate bracket provided in the second embodiment of the present invention;

[0034] Figure 7 A schematic diagram of a portion of the structure of the first split body and the side panel bracket provided in the second embodiment of the present invention;

[0035] Figure 8 A schematic diagram of the partial structure of the second split body and the side panel bracket provided in the second embodiment of the present invention;

[0036] Figure 9 A schematic diagram of the partial structure of a vehicle provided in Example 3 of the present invention.

[0037] Reference numerals:

[0038] 1000. Vehicle;

[0039] 100. Battery;

[0040] 10. Housing;

[0041] 20. End cover; 21. Explosion-proof hole;

[0042] 30. Pole group; 31. Pole group separation; 311. Pole ear; 312. Groove;

[0043] 40. Insulating film;

[0044] 50, side panel bracket; 5001, accommodating cavity; 51, split side panel; 511, first side panel; 5111, through hole; 5112, second through slot; 512, second side panel; 5121, through hole;

[0045] 60. Partition bracket; 6001. Protective groove; 61. Partition body; 611. Dividing portion; 6111. First connecting portion; 6112. Supporting portion; 62. First part; 621. Second connecting portion; 622. Extending portion; 6221. First through-slot; 63. Second part; 631. Third connecting portion; 632. Support platform;

[0046] 200. Controller; 300. Motor. DETAILED DESCRIPTION

[0047] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0048] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0049] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0050] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0051] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0052] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, 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 embodiment.

[0053] Example 1

[0054] like Figure 1 As shown, this embodiment provides a battery 100, which includes a housing 10 and an electrode group 30. The electrode group 30 is disposed within the housing 10, and the housing 10 is used to support and protect the electrode group 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 and higher strength, and can also provide support.

[0055] In this embodiment, the housing 10 has openings at both ends along the first direction. The battery 100 also includes two end caps 20, each of which covers the corresponding opening. The electrode assembly 30 is connected to the end caps 20, which are then connected to the main body of an external electrical device, enabling the battery 100 to power the main body of the electrical device. In other embodiments, the number of end caps 20 can be one, and the housing 10 has only one opening, which is covered by the end cap 20. In this embodiment, the first direction is the longitudinal direction of the housing 10.

[0056] like Figure 1 As shown, an explosion-proof hole 21 is provided on the end cover 20, and an explosion-proof valve is provided in the explosion-proof hole 21. When an abnormality occurs inside the battery 100, after the air pressure in the shell 10 reaches the explosion-proof threshold of the explosion-proof valve, the explosion-proof valve opens, and the gas is discharged from the explosion-proof hole 21, releasing the internal pressure of the shell 10, preventing the battery 100 from thermal runaway and explosion and fire, and improving the safety of the battery 100.

[0057] Optionally, a polarity mark is provided on the end cover 20 , and the polarity mark is used to mark the positive and negative poles of the battery 100 so as to distinguish the positive and negative poles of the battery 100 .

[0058] In the prior art, in order to increase battery capacity, current batteries are developing in the direction of lengthening the electrode groups. When the electrode groups are lengthened, due to their strength issues, they often bend and deform, and the electrode sheets will experience defects such as wrinkling, deformation, layer cross-linking, and fracture, resulting in reduced yield. To solve the above technical problems, some related technologies also provide some batteries. By disposing multiple electrode groups connected in series inside the battery housing, two adjacent electrode groups are connected by a connector. This increases the number of structural components of the battery, occupies battery space, and increases production costs. In addition, when the electrode groups are large in size and have a large number of electrode sheets, the two adjacent electrode groups are connected by only a single connector, resulting in a large internal resistance of the battery.

[0059] In order to solve the above problems, Figure 1-Figure 2 As shown, the battery 100 provided in this embodiment also includes a partition bracket 60, the electrode group 30 includes two electrode group components 31, the two electrode group components 31 are arranged along the first direction, and the two electrode group components 31 are provided with at least two pole ears 311 on the side facing each other, and the at least two pole ears 311 of each electrode group component 31 are arranged along the second direction. The pole ears 311 on the side of the two electrode group components 31 facing each other are connected one-to-one, and the partition bracket 60 is arranged between the two electrode group components 31. The partition bracket 60 is provided with at least two protective grooves 6001 arranged along the second direction, and at least part of the pole ears 311 are located in the corresponding protective grooves 6001. In this embodiment, the second direction is the width direction of the shell 10, that is, the first direction and the second direction are perpendicular; in other embodiments, the first direction and the second direction are arranged at an angle, which is not limited here.

[0060] By dividing the electrode group 30 into two electrode group components 31, the length of a single electrode group component 31 can be shortened, thereby avoiding bending and deformation of the electrode group 30, and avoiding problems such as wrinkling, deformation, layer crossover, and breakage of the electrode sheet; at least two electrode ears 311 are provided along the second direction on the side of the two electrode group components 31 facing each other, and the electrode ears 311 on the side of the two electrode group components 31 facing each other are connected one by one to increase the flow area of the two electrode group components 31 and reduce the internal resistance of the battery 100; in addition, the two electrode group components 31 are separated by the partition bracket 60, which reduces the external convergence and installation structure of the battery 100, improves the space utilization of the battery 100, and thereby improves the overall capacity of the battery 100.

[0061] In this embodiment, the number of pole ears 311 set along the second direction on one side of the pole group segments 31 facing each other is two. In other embodiments, the number of pole ears 311 can also be three, four or more, which can be adaptively adjusted according to the size of the pole group 30 and the number of pole sheet layers.

[0062] Optionally, the pole tabs 311 corresponding to the two pole group components 31 are connected by horizontal welding, thereby saving the length of the pole tabs 311, simplifying the process, reducing the number of structural parts, and lowering the internal resistance.

[0063] In this embodiment, the two pole group components 31 are connected in series, that is, the positive electrode tab in one of the two pole group components 31 is welded to the negative electrode tab in the other pole group component 31 to increase the capacity and voltage of the battery 100.

[0064] The electrode group 30 in the present application can be formed by winding or by laminating. Generally, the electrode group 30 includes at least a positive electrode sheet, a separator, and a negative electrode sheet.

[0065] Optionally, the partition support 60 is made of insulating material, and the two pole group components 31 can be directly isolated by the partition support 60 and the insulation between the two can be maintained.

[0066] like Figure 1 and Figure 2 As shown, the battery 100 also includes a side plate bracket 50, a partition bracket 60 is arranged in the side plate bracket 50, and two accommodating cavities 5001 are separated in the side plate bracket 50, and the pole group separator 31 is arranged in the corresponding accommodating cavity 5001, that is, the side plate bracket 50 is provided on the side of the pole group 30. When the pole group 30 is inserted into the shell, the side plate bracket 50 contacts the shell 10 to prevent the pole group 30 from directly contacting the shell 10, thereby avoiding the problem that the pole group 30 is easily stuck in the middle position of the shell 10 when entering the shell, and avoiding damage to the pole group 30.

[0067] In this embodiment, the side panel bracket 50 includes two oppositely arranged side panel splits 51, and the two side panel splits 51 are arranged along the first direction. The partition bracket 60 includes two partition splits 61 arranged along the first direction. The partition splits 61 and the corresponding side panel splits 51 are jointly arranged to form a accommodating cavity 5001 to form support on the four sides of the pole group split 31, thereby achieving a better isolation and support effect on the pole group split 31.

[0068] Specifically, the side panel split 51 includes a first side panel 511 and two second side panels 512. The two first side panels 511 are respectively arranged at both ends of the second direction of the first side panel 511, so that the side panel split 51 is U-shaped. The two relatively arranged U-shaped side panel splits 51 can be covered on the side of the pole group 30 to protect the side of the pole group 30, prevent the pole group 30 from contacting the shell 10, and thereby prevent damage to the pole group 30.

[0069] Optionally, a plurality of through holes 5121 are provided on the second side plate 512 , and the plurality of through holes 5121 are arranged at intervals along the first direction to facilitate exhaust and electrolyte infiltration.

[0070] Optionally, the first side plate 511 is provided with a through-hole 5111, and the tabs 311 of the electrode group components 31 facing away from the partition support 60 are passed through the through-hole 5111. The provision of the through-hole 5111 provides a clearance for the tabs 311. In this embodiment, the tabs 311 of the electrode group components 31 at both ends of the electrode group 30 are passed through the through-hole 5111 and then welded to the end cap 20.

[0071] Optionally, the battery 100 further includes an insulating film 40, which is coated around the outer periphery of the electrode group 30 and the side plate support 50 and is located within the housing 10. After the electrode group 30 and the side plate support 50 are assembled, the insulating film 40 is coated thereon, and then the electrode group 30 and the side plate support 50 coated with the insulating film 40 are installed within the housing 10. The insulating film 40 improves the insulation protection capability of the electrode group 30. Specifically, the insulating film 40 is a Mylar film.

[0072] In this embodiment, Figure 1 As shown, the insulating film 40 includes two film parts, which are respectively coated on the outer periphery of the corresponding pole group part 31 and located on the outer side of the side plate part 51 to improve the insulation protection capability of the pole group 30.

[0073] Optionally, the side panel split 51 is made of insulating material. After the end cap 20 and the housing 10 are assembled, the end cap 20 abuts against the side panel bracket 50, which can prevent short circuits on the one hand, and on the other hand, does not require a separate lower plastic, simplifies the assembly steps, improves structural efficiency, and improves space utilization.

[0074] Optionally, the partition body 61 and the corresponding side panel body 51 are integrally formed to reduce the number of parts, simplify the assembly process, and facilitate installation. Specifically, the partition body 61 and the corresponding side panel body 51 are injection molded, which provides high production efficiency and high product quality. It will be appreciated that the structure formed by the partition body 61 and the side panel body 51 is identical to the structure formed by another partition body 61 and the side panel body 51, and the same mold can be used during production to reduce production costs.

[0075] like Figure 2 and Figure 3 As shown, the partition split 61 includes two partitions 611 arranged along the second direction, the partition 611 includes a first connecting portion 6111 and at least one supporting portion 6112, the first connecting portion 6111 is connected to the side plate split 51, the supporting portion 6112 is formed by at least part of the first connecting portion 6111 extending toward the inside of the accommodating cavity 5001 along the first direction, the protective groove 6001 passes through the supporting portion 6112 and the first connecting portion 6111, and the support portion 6112 is used to protect and support the connection between the pole ears 311 of the two pole group splits 31, thereby preventing the pole ears 311 from being crushed or other defects.

[0076] like Figure 4 As shown, grooves 312 are provided on one side of the two pole group components 31 close to each other, and the support parts 6112 are respectively located in the corresponding grooves 312 to fully utilize the space of the accommodating cavity 5001 and improve the capacity of the battery 100.

[0077] Optionally, the pole lug 311 is centrally arranged in the groove 312 to ensure uniform current distribution in the pole group component 31 .

[0078] It can be understood that there is a gap between the two partitions 611. When the pole group 30 is assembled, the partition split 61 can be "split open" along the second direction at this gap to increase the distance between the two second side plates 512, so as to facilitate the installation of the pole group split 31 in the accommodating cavity 5001 and ensure the smooth assembly of the pole group split 31.

[0079] Optionally, the dimension of the protective groove 6001 in the first direction is W1, and W1 is greater than or equal to 10 mm and less than or equal to 25 mm. The value of W1 is controlled within the range of greater than or equal to 10 mm and less than or equal to 25 mm, thereby ensuring the effective connection of the pole ears 311 corresponding to the two pole group components 31 in the first direction, avoiding the problem of unstable connection of the two pole group components 31 in the first direction due to the small dimension of the protective groove 6001 in the first direction, and avoiding the problem of occupying too much internal space of the shell 10 due to the large dimension of the protective groove 6001 in the first direction.

[0080] For example, the dimension W1 of the protective groove 6001 in the first direction can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, or 25 mm. In other embodiments, the value of W1 is not limited to the above range and can be adjusted according to needs.

[0081] Optionally, the distance between two adjacent support portions 6112 along the second direction is L, and L is greater than 15 mm. By setting L greater than 15 mm, the size of the tab 311 in the second direction is minimized while ensuring the flow area of the tab 311, thereby reducing the impact of the size of the electrode slot on the capacity of the battery 100. The value of L can be 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, or 25 mm, etc.

[0082] Optionally, the dimension of the first connecting part 6111 in the first direction is W2, and W2 is greater than or equal to 1 mm and less than or equal to 2.5 mm. The above dimension setting can ensure that the first connecting part 6111 has sufficient strength, while avoiding the first connecting part 6111 occupying too much internal space of the shell 10.

[0083] For example, the dimension W2 of the first connection portion 6111 in the first direction may be 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2 mm, 2.2 mm, or 2.5 mm. In other embodiments, the value of W1 is not limited to the above range and can be adjusted according to needs.

[0084] Example 2

[0085] This embodiment provides a battery 100 , the specific structure of which is substantially the same as that of the battery 100 in the first embodiment, except that the specific structure of the partition bracket 60 is different.

[0086] like Figure 5-Figure 8 As shown, the side panel bracket 50 includes two side panel segments 51 arranged opposite each other along a first direction, and the partition bracket 60 includes a first segment 62 and a second segment 63 arranged along a third direction. The first segment 62 is connected to one of the side panel segments 51, and the second segment 63 is connected to the other side panel segment 51. By arranging the partition bracket 60 with the first segment 62 and the second segment 63 arranged along the third direction, the processing of the first segment 62 and the second segment 63 is facilitated. The third direction is the thickness direction of the housing 10.

[0087] Optionally, the first split body 62 is integrally formed with one of the side panel brackets 50 ; the second split body 63 is integrally formed with the other side panel bracket 50 , so as to reduce the number of parts, simplify the assembly process, and facilitate installation.

[0088] Optionally, the first split 62 includes a second connecting portion 621 and at least two extension portions 622 arranged along the second direction, the second connecting portion 621 is connected to one of the side plate splits 51, and the extension portion 622 is formed by at least a portion of the second connecting portion 621 extending along the first direction; the second split 63 includes a third connecting portion 631 and at least two support platforms 632 arranged along the second direction, the third connecting portion 631 is connected to the other side plate split 51, and the support platform 632 is formed by at least a portion of the third connecting portion 631 extending along the first direction, the support platform 632 and the extension portion 622 are arranged in a one-to-one correspondence, and the support platform 632 and the extension portion 622 jointly form a protective groove 6001 to facilitate the processing of the protective groove 6001, and at the same time, support for the pole ear 311 is achieved through the support platform 632.

[0089] In order to prevent the extension portion 622 from interfering with the installation of the pole group component 31, a second through groove 5112 extending along the third direction is opened on the first side plate 511, and the second through groove 5112 passes through the first side plate 511. When installing the pole group component 31, the first side plate 511 can be "opened" along the second direction at this second through groove 5112, so as to facilitate the installation of the pole group component 31 in the accommodating cavity 5001 and ensure the smooth assembly of the pole group component 31.

[0090] Optionally, the extension portion 622 is provided with a first through slot 6221 , which penetrates the extension portion 622 along the third direction. The provision of the first through slot 6221 can reduce the weight of the partition bracket 60 , thereby facilitating a lightweight design of the battery 100 .

[0091] In this embodiment, one of the end covers 20 is provided with an explosion-proof hole 21, and two first explosion-proof holes 11 are provided on the shell 10. Explosion-proof valves are provided in the first explosion-proof hole 11 and the explosion-proof hole 21. The two first explosion-proof holes 11 are arranged at intervals along the first direction to shorten the gas discharge path and the gas discharge distance, so as to improve the safety performance of the battery 100.

[0092] Optionally, a slit is provided on the insulating film 40 , and the slit is arranged opposite to the first explosion-proof hole 11 to facilitate smooth exhaust.

[0093] Example 3

[0094] This embodiment provides an electrical device, which includes an electrical device body and the battery 100 provided in Example 1 or Example 2. The battery 100 can provide electrical energy to the electrical device body, thereby enabling the electrical device body to automatically complete preset actions through electrical energy, ensuring good performance of the electrical device body and ensuring the service life and safety performance of the electrical device.

[0095] Specifically, the main body of the electrical device can be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, or an electric tool. A vehicle can be a fuel vehicle, a gas vehicle, or a new energy vehicle; a new energy vehicle can be a pure electric vehicle or a hybrid vehicle; a spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft; an electric toy includes a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy; an electric tool includes a metal cutting power tool, a grinding power tool, an assembly power tool, and a railway power tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, or an electric planer. This embodiment does not limit the main body of the electrical device.

[0096] The following examples are for convenience of description. Figure 9 As shown, an embodiment of the present application is described using a vehicle 1000 as an example of an electrical device. Vehicle 1000 is internally provided with a battery 100, which can be located at the bottom, front, or rear of vehicle 1000. There can be one or more batteries 100, and multiple batteries 100 can be connected in series, in parallel, or in a hybrid configuration. A hybrid configuration refers to multiple batteries 100 being connected in both series and parallel configurations.

[0097] The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, to meet the power requirements of the vehicle 1000 during starting, navigation, and driving.

[0098] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000 , but also as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .

[0099] Note that throughout this specification, references to terms such as "some embodiments" and "other embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be incorporated in any suitable manner in any one or more embodiments or examples.

[0100] The above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the 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 scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A battery, characterized in that: include: A pole group (30) comprises two pole group components (31), the two pole group components (31) are arranged along a first direction, at least two pole lugs (311) are provided on the sides of the two pole group components (31) facing each other, at least two pole lugs (311) of each pole group component (31) are arranged along a second direction, and the pole lugs (311) on the sides of the two pole group components (31) facing each other are connected in a one-to-one correspondence; A partition support (60) is arranged between the two pole group components (31), and the partition support (60) is provided with at least two protective grooves (6001) arranged along the second direction, at least part of the pole lug (311) is located in the corresponding protective groove (6001), and the first direction and the second direction are arranged at an angle.

2. The battery according to claim 1, characterized in that The dimension of the protection groove (6001) in the first direction is W1, which is greater than or equal to 10 mm and less than or equal to 25 mm.

3. The battery according to claim 1, characterized in that The battery further comprises: The side plate bracket (50) is connected to the partition bracket (60) and separates the side plate bracket (50) into two accommodating cavities (5001) arranged along the first direction, and the pole group components (31) are arranged in the corresponding accommodating cavities (5001).

4. The battery according to claim 3, characterized in that The side panel bracket (50) includes two side panel splits (51) arranged opposite to each other along the first direction, and the partition bracket (60) includes two partition splits (61) arranged along the first direction, and the partition splits (61) and the corresponding side panel splits (51) are jointly arranged to form the accommodating cavity (5001).

5. The battery according to claim 4, characterized in that The partition body (61) includes two partitions (611) arranged along the second direction, and the partitions (611) include: A first connecting portion (6111) connected to the side panel split (51); At least one supporting portion (6112), wherein the supporting portion (6112) is formed by extending at least a portion of the first connecting portion (6111) toward the interior of the accommodating cavity (5001) along the first direction, and the protective groove (6001) passes through the supporting portion (6112) and the first connecting portion (6111).

6. The battery according to claim 5, characterized in that The distance between two adjacent support portions (6112) along the second direction is L, and L is greater than 15 mm; and / or The dimension of the first connecting portion (6111) in the first direction is W2, and W2 is greater than or equal to 1 mm and less than or equal to 2.5 mm.

7. The battery according to claim 3, characterized in that The side panel bracket (50) includes two side panel splits (51) arranged opposite to each other along the first direction, and the partition bracket (60) includes a first split (62) and a second split (63) arranged along a third direction, the first split (62) is connected to one of the side panel splits (51), and the second split (63) is connected to the other side panel split (51), and the first direction, the second direction and the third direction are arranged at an angle to each other.

8. The battery according to claim 7, characterized in that The first split body (62) includes a second connecting portion (621) and at least two extending portions (622) arranged along the second direction, the second connecting portion (621) is connected to one of the side plate split bodies (51), and the extending portion (622) is formed by at least a portion of the second connecting portion (621) extending along the first direction; The second split (63) includes a third connecting portion (631) and at least two support platforms (632) arranged along the second direction. The third connecting portion (631) is connected to the other side panel split (51). The support platform (632) is formed by extending at least part of the third connecting portion (631) along the first direction. The support platform (632) and the extension portion (622) are arranged in a one-to-one correspondence. The support platform (632) and the extension portion (622) together form the protective groove (6001).

9. The battery according to claim 8, characterized in that The extension portion (622) is provided with a first through-slot (6221), and the first through-slot (6221) passes through the extension portion (622) along the third direction.

10. An electrical device, comprising an electrical device body, characterized in that: The electrical device further comprises a battery as claimed in any one of claims 1 to 9, wherein the battery is configured to supply power to the electrical device body.

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