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, a supporting piece and at least one fixing assembly, the pole group comprises at least two pole group split bodies arranged in the first direction, the fixing assembly is arranged between every two adjacent pole group split bodies, the fixing assembly comprises a first fixing piece and a second fixing piece, one of every two adjacent pole group split bodies is inserted into the first fixing piece, and the other one of every two adjacent pole group split bodies is inserted into the second fixing piece. The first fixing piece is matched with the second fixing piece in an inserted mode, and the supporting pieces are arranged at the two ends of the pole group in the first direction so as to prevent the pole group from being assembled in a split mode and further avoid damage to the pole lugs. And meanwhile, the length of a single short pole group split body can be shortened, so that bending deformation of the pole group is avoided, and the problems of wrinkling, deformation, layer channeling, breakage and the like of the pole piece are avoided. According to the power utilization device, by applying the battery, the split assembly dislocation of the pole group can be prevented, so that the damage to the pole lugs is avoided.

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 batteries, current batteries are developing in the direction of lengthening the electrode group. When the electrode group is lengthened, it often bends and deforms due to its strength problem, and the electrode sheet will have defects such as wrinkles, deformation, layer crossover, and fracture, resulting in a reduction in yield.

[0004] In order to solve the above technical problems, some batteries are also provided in the related art, which arrange the electrode group into multiple electrode group components connected in series inside the battery shell. However, during assembly, two adjacent electrode group components are easily assembled misaligned, resulting in damage to the electrode ears, which in turn causes damage and failure of the battery.

[0005] Therefore, there is an urgent need for a battery and an electrical device to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a battery and an electrical device that can avoid dislocation of the assembly of the pole group components, thereby avoiding damage to the pole ears; at the same time, it can shorten the length of a single short pole group component, thereby avoiding bending and deformation of the pole group, and avoiding wrinkles, deformation, layer crossover, breakage and other problems in the pole sheets.

[0007] To achieve the above objectives, the following technical solutions are provided:

[0008] A battery comprising:

[0009] Support members;

[0010] a pole group, comprising at least two pole group members arranged along a first direction;

[0011] At least one fixing component is arranged between two adjacent pole group members, and the fixing component includes a first fixing part and a second fixing part. One of the two adjacent pole group members is plugged into the first fixing part, and the other is plugged into the second fixing part. The first fixing part and the second fixing part are plugged into each other, and the support member is arranged at both ends of the pole group along the first direction.

[0012] As an optional solution of the battery provided by the present invention, one of the first fixing member and the second fixing member is provided with an inserting portion, and the other is provided with an inserting slot adapted to the inserting portion, and the inserting portion is plugged into and matched with the inserting slot.

[0013] As an optional solution for the battery provided by the present invention, the fixing assembly is provided with a protective groove, which passes through the first fixing member and the second fixing member, and the pole ears of two adjacent pole group components are connected and pass through the protective groove.

[0014] As an optional solution of the battery provided by the present invention, the second fixing member is provided with a flow hole, and the flow hole is communicated with the protection groove.

[0015] As an optional solution of the battery provided by the present invention, the support member includes:

[0016] a substrate abutting against one end of the electrode group along the first direction;

[0017] A plurality of side plates are erected on the base plate, the plurality of side plates and the base plate are surrounded to form a fixing groove, and at least a portion of the pole group is inserted into the fixing groove.

[0018] As an optional solution of the battery provided by the present invention, the size of the side plate in the first direction is L, and L is greater than or equal to 5 mm and less than or equal to 20 mm.

[0019] As an optional solution of the battery provided by the present invention, the battery further includes:

[0020] case;

[0021] The protective member is arranged on two opposite side surfaces of the pole group component and abuts against the inner wall of the shell.

[0022] As an optional solution of the battery provided by the present invention, the protective member includes:

[0023] a main body plate abutting against a side surface of the pole group component along the third direction;

[0024] An extension portion is formed by extending the two side edges of the main plate along the second direction toward the interior of the pole group component along the third direction, and the extension portion abuts against the side surface of the pole group component along the second direction, and the first direction, the second direction and the third direction are arranged at an angle to each other.

[0025] As an optional solution of the battery provided by the present invention, a plurality of through holes are opened on the main plate, and the plurality of through holes are arranged in an array.

[0026] The present invention further provides an electric device, comprising an electric device body, the electric device further comprising the above-mentioned battery, and the battery being configured to supply power to the electric device body.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The battery provided by the present invention prevents the two adjacent pole group components from being misaligned in assembly by plugging one of the two adjacent pole group components into a first fixing member and the other into a second fixing member, and the first fixing member and the second fixing member are plugged into each other. Moreover, by arranging support members at both ends of the pole group along the first direction, the support members can support the two ends of the pole group along the first direction, thereby preventing the pole group components located at both ends of the first direction from being misaligned in assembly, thereby avoiding problems such as damage to the pole ears caused by misalignment of the pole group components. By dividing the pole group into two pole group components, the length of a single pole group component can be shortened, thereby avoiding bending and deformation of the pole group, and avoiding problems such as wrinkling, deformation, layer crossover, and fracture of the pole sheet.

[0029] The electric device provided by the present invention, by applying the above-mentioned battery, has a higher battery capacity and a higher voltage, can avoid the dislocation of the electrode group assembly, and improve the service life of the electric device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

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

[0032] Figure 2 A schematic structural diagram of a support member, a fixing assembly, and an electrode group provided in the first embodiment of the present invention;

[0033] Figure 3 A first view of the fixing assembly provided in embodiment 1 of the present invention;

[0034] Figure 4 A second view of the fixing assembly provided in embodiment 1 of the present invention;

[0035] Figure 5 for Figure 4 Cross-sectional view at AA in the middle;

[0036] Figure 6 for Figure 4 Cross-sectional view at the middle BB;

[0037] Figure 7 A schematic structural diagram of a first fixing member provided in Embodiment 1 of the present invention;

[0038] Figure 8 A first view of a second fixing member provided in embodiment 1 of the present invention;

[0039] Figure 9 A second view of the second fixing member provided in the first embodiment of the present invention;

[0040] Figure 10 A schematic structural diagram of a support member provided in Embodiment 1 of the present invention;

[0041] Figure 11 A cross-sectional view of a support member provided in Example 2 of the present invention;

[0042] Figure 12 An exploded view of a battery provided in Example 2 of the present invention;

[0043] Figure 13 A schematic structural diagram of a support member, a protective member, a pole group component, and a fixing assembly provided in the second embodiment of the present invention;

[0044] Figure 14 A schematic structural diagram of a protective element provided in the second embodiment of the present invention;

[0045] Figure 15 This is a schematic structural diagram of a vehicle provided in Example 3 of the present invention.

[0046] Reference numerals:

[0047] 1000. Vehicle;

[0048] 100. Battery;

[0049] 10. Shell; 11. First explosion-proof hole;

[0050] 20. End cover; 21. Second explosion-proof hole;

[0051] 30. Pole group; 31. Pole group separation;

[0052] 40. Insulating film;

[0053] 50. Support member; 5001. Fixing groove; 51. Base plate; 511. Through hole; 52. Side plate;

[0054] 60. Fixing assembly; 6001. Protective groove; 61. First fixing member; 611. Insertion groove; 612. First groove; 613. First slot; 62. Second fixing member; 621. Insertion portion; 622. Second groove; 623. Second slot; 624. Flow hole;

[0055] 70. Protective member; 71. Main plate; 711. Through hole; 72. Extension portion;

[0056] 200. Controller; 300. Motor. DETAILED DESCRIPTION

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] like Figure 1 As shown, a second explosion-proof hole 21 is provided on the end cover 20, and an explosion-proof valve is provided in the second explosion-proof hole 21. When an energy abnormality occurs inside the battery 100, the air pressure in the shell 10 reaches the explosion-proof threshold of the explosion-proof valve, and the explosion-proof valve opens, and the gas is discharged from the second 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.

[0066] 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 .

[0067] In the prior art, to increase battery capacity, current batteries are developing in the direction of longer electrode groups. When the electrode group is longer, on the one hand, it is more difficult to insert the electrode group into the shell. The electrode group is easily damaged by collision with the shell during the insertion process, making the electrode group difficult to insert into the shell. On the other hand, due to its strength, the electrode group often bends and deforms, and the electrode sheets will suffer from 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 arranging the electrode group inside the battery shell as multiple electrode group components connected in series. However, during assembly, two adjacent electrode group components are easily misaligned, resulting in damage to the electrode tabs, which can cause battery damage and failure.

[0068] In order to solve the above problems, Figure 1 and Figure 2 As shown, the battery 100 provided in this embodiment also includes a support member 50 and at least one fixing component 60. The pole group 30 includes at least two pole group components 31 arranged along the first direction. The fixing component 60 is arranged between two adjacent pole group components 31. The fixing component 60 includes a first fixing member 61 and a second fixing member 62. One of the two adjacent pole group components 31 is inserted into the first fixing member 61, and the other is inserted into the second fixing member 62. The first fixing member 61 and the second fixing member 62 are plugged into each other, and the support member 50 is arranged at both ends of the pole group 30 along the first direction.

[0069] During assembly, one of the two adjacent pole group components 31 is inserted into the first fixing member 61, and the other is inserted into the second fixing member 62. The first fixing member 61 and the second fixing member 62 are plugged into each other to prevent the two adjacent pole group components 31 from being misaligned in assembly. By arranging the support member 50 at both ends of the pole group 30 along the first direction, the support member 50 can support the two ends of the pole group 30 along the first direction, thereby preventing the pole group components 31 located at both ends of the first direction from being misaligned in assembly, thereby avoiding problems such as damage to the pole ears caused by misalignment of the pole group components 31. By dividing the pole group 30 into two pole group components 31, the length of a single pole group component 31 can be shortened, thereby avoiding bending and deformation of the pole group 30, and avoiding problems such as wrinkling, deformation, layer penetration, and fracture of the pole piece.

[0070] The electrode component 31 in the present application can be wound or laminated. Generally, the electrode component 31 includes at least a positive electrode sheet, a separator, and a negative electrode sheet.

[0071] Optionally, the fixing assembly 60 is made of insulating material, and the two pole group components 31 can be directly isolated by the fixing assembly 60 and insulation between the two can be maintained.

[0072] like Figure 2-Figure 4 As shown, the first fixing member 61 is provided with a first slot 613, and the second fixing member 62 is provided with a second slot 623. One of the two adjacent pole group components 31 is inserted into the first slot 613 on the side facing each other, and the other is inserted into the second slot 623. By setting the first slot 613 and the second slot 623, the installation and positioning of the pole group components 31 can be achieved, and the pole group components 31 can be prevented from falling off from the corresponding first fixing member 61 or the second fixing member 62.

[0073] like Figure 3-Figure 9 As shown, the first fixing member 61 is provided with an inserting portion 621, and the second fixing member 62 is provided with an inserting slot 611 adapted to the inserting portion 621. The inserting portion 621 is plugged into and matched with the inserting slot 611 to achieve rapid assembly and disassembly of the first fixing member 61 and the second fixing member 62, thereby improving the assembly efficiency of the first fixing member 61 and the second fixing member 62. In other embodiments, the inserting portion 621 can also be provided on the second fixing member 62, and the inserting slot 611 can be provided on the first fixing member 61, which can also achieve the above purpose.

[0074] Optionally, the first fixing member 61 is in a convex shape, and the second fixing member 62 is in a concave shape. After the first fixing member 61 and the second fixing member 62 are plugged into each other, the fixing assembly 60 is roughly in the shape of a rectangular parallelepiped, so that the fixing assembly 60 has a compact structure and avoids the fixing assembly 60 occupying too much space and affecting the energy density of the battery 100.

[0075] In this embodiment, the plug-in portion 621 is a cubic block. In other embodiments, the plug-in portion 621 can also be a wedge-shaped block, a cylinder, a prism, a truncated cone, a frustum or a truncated pyramid, etc., as long as the plug-in portion 621 and the plug-in slot 611 can be plugged in and matched, and no limitation is made here.

[0076] Optionally, the fixing assembly 60 is provided with a protective groove 6001 which passes through the first fixing member 61 and the second fixing member 62 . The tabs of two adjacent pole group components 31 are connected after passing through the protective groove 6001 to protect the tabs.

[0077] Optionally, a first groove 612 is provided on the first fixing member 61, and a second groove 622 is provided on the second fixing member 62. The first groove 612 and the second groove 622 are arranged opposite to each other and together form the above-mentioned protective groove 6001, wherein the pole ear of one pole group component 31 is passed through the first groove 612, and the pole ear of the other pole group component 31 is passed through the second groove 622. The connection between the pole ears of the two pole group components 31 is located in the fixing component 60, so as to realize the protection of the pole ears and avoid disadvantages such as pole ear crushing.

[0078] Optionally, the pole tabs corresponding to two adjacent pole group segments 31 are connected by horizontal welding, thereby saving the pole tab length, simplifying the process, reducing the number of structural parts, and lowering the internal resistance.

[0079] In this embodiment, two adjacent electrode group components 31 are connected in series, that is, the positive electrode tab of one of the two electrode group components 31 is welded to the negative electrode tab of the other electrode group component 31, so as to increase the capacity and voltage of the battery 100. In other embodiments, two adjacent electrode group components 31 can also be connected in parallel. Designers can make adaptive adjustments based on actual needs and are not limited here.

[0080] Optionally, the number of first slots 612 and second slots 622 is two, that is, the number of protective slots 6001 is two. In other words, two tabs are provided on each side of the pole group components 31 facing each other, and the two tabs are spaced apart along the second direction. The two tabs of one pole group component 31 are connected to the two tabs of another pole group component 31 in a one-to-one correspondence, thereby increasing the flow area of the two adjacent pole group components 31 and reducing the internal resistance of the battery 100. In other embodiments, the number of tabs can also be three, four, or more, and designers can make adaptive adjustments based on the size of the pole group 30 and the number of pole sheet layers. The second direction is the length direction of the housing 10.

[0081] Optionally, the second fixing member 62 is provided with a flow hole 624 , which is in communication with the protective groove 6001 . By providing the flow hole 624 , a flow path is provided for the electrolyte, facilitating the electrolyte to enter the fixing assembly 60 .

[0082] Optionally, the first fixing member 61 is produced by injection molding, which has high production efficiency and good product quality.

[0083] Optionally, the second fixing member 62 is produced by injection molding, which has high production efficiency and good product quality.

[0084] like Figure 1 、 Figure 2 、 Figure 10 and Figure 11As shown, the support member 50 includes a base plate 51 and four side plates 52. The base plate 51 abuts one end of the electrode group 30 along the first direction. The side plates 52 are vertically mounted on the base plate 51. The four side plates 52 are connected end to end and surround the base plate 51 to form a fixing groove 5001. At least a portion of the electrode group 30 is inserted into the fixing groove 5001 to support the electrode group segments 31 at both ends. In other embodiments, the number of side plates 52 can also be two, three, or more, and can be adaptively selected according to actual needs.

[0085] Optionally, the dimension of the side panel 52 in the first direction is L, that is, the depth of the fixing groove 5001 is L, and L is greater than or equal to 5 mm and less than or equal to 20 mm. By controlling the value of L within the range of greater than or equal to 5 mm and less than or equal to 20 mm, it can ensure that the support member 50 is better supported on the pole group segment 31 located at both ends of the first direction, thereby avoiding the side panel 52 being too small in the first direction, causing the support member 50 to easily fall off the pole group segment 31, and at the same time avoiding the problem of material waste caused by the side panel 52 being too large in the first direction.

[0086] For example, the dimension L of the side panel 52 in the first direction is 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm. In other embodiments, the value of L is not limited to the above range and can be adjusted as needed.

[0087] Optionally, the base plate 51 and the side plate 52 are integrally formed to reduce the number of parts, simplify the assembly process, and facilitate installation.

[0088] Optionally, the support member 50 is produced by injection molding, which has high production efficiency and good product quality.

[0089] Optionally, the substrate 51 is provided with a through-hole 511, and the tabs of the pole group components 31 at both ends facing away from the fixing assembly 60 are passed through the through-hole 511. The provision of the through-hole 511 enables the substrate 51 to avoid the tabs. In this embodiment, the tabs of the pole group components 31 at both ends of the pole group 30 are passed through the through-hole 511 and then welded to the end cap 20.

[0090] Optionally, the support member 50 is made of insulating material. After the end cap 20 is assembled with the housing 10, the end cap 20 abuts against the support member 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, and improves the space utilization of the battery 100.

[0091] Optionally, the battery 100 further includes an insulating film 40 , which is coated on the outer periphery of the corresponding electrode group component 31 to improve the insulation protection capability of the electrode group 30 .

[0092] When assembling the battery 100, after the pole group components 31 and the insulating film 40 are assembled, the first fixing member 61 is inserted into the side of one of the two adjacent pole group components 31 facing each other, and the second fixing member 62 is inserted into the side of the other facing each other. Then, the first fixing member 61 and the second fixing member 62 are plugged into each other until the assembly of all pole group components 31 is completed. Then, the support member 50 is inserted into the pole group components 31 at both ends, and then the pole group 30 is installed in the shell 10. Finally, the end cover 20 is snapped into the opening of the shell 10.

[0093] Example 2

[0094] 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 battery 100 provided in this embodiment further includes a protective member 70 .

[0095] like Figure 12-14 As shown, the protective member 70 is provided on two opposite side surfaces of the pole group segment 31 and abuts against the inner wall of the housing 10 to prevent the pole group 30 from being damaged when entering the housing.

[0096] Specifically, the protective member 70 includes a main plate 71 and an extension portion 72. The main plate 71 abuts against a side surface of the pole group separate 31 along the third direction. The extension portion 72 is formed by extending the two side edges of the main plate 71 along the second direction toward the interior of the pole group separate 31 along the third direction. The extension portion 72 abuts against the side surface of the pole group separate 31 along the second direction. The third direction is the thickness direction of the shell 10, that is, the main plate 71 is arranged on the side surface of the pole group separate 31 with the largest area to increase the protection area of the pole group separate 31, thereby improving the protection effect of the pole group separate 31. In this embodiment, 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 arranged at an angle to each other, which is not limited here.

[0097] Optionally, a plurality of through holes 711 are provided on the main plate 71 , and the plurality of through holes 711 are arranged in an array to facilitate exhaust and electrolyte infiltration, while reducing the weight of the protective member 70 and thereby reducing the weight of the battery 100 .

[0098] Optionally, the thickness of the main plate 71 is T, which is greater than or equal to 0.4 mm and less than or equal to 2 mm, to ensure the protection effect of the electrode group 30, while avoiding the main plate 71 being too thick and occupying more internal space of the shell 10.

[0099] For example, the thickness T of the main plate 71 can be 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 0.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, or 2 mm. In other embodiments, the value of T is not limited to the above range and can be adjusted as needed.

[0100] Optionally, at least part of the protective members 70 at both ends in the first direction is located in the fixing groove 5001 to facilitate the installation of the support member 50 .

[0101] In this embodiment, the protective member 70 is made of insulating material and is located outside the insulating film 40. The protective member 70 abuts against the inner wall of the housing 10 to improve the insulation protection capability of the electrode group 30. Specifically, the insulating film 40 is a Mylar film.

[0102] Optionally, the main body plate 71 and the extension portion 72 are integrally formed to reduce the number of parts, simplify the assembly process, facilitate installation, and improve the overall strength of the protective member 70 .

[0103] Optionally, the protective member 70 is formed by injection molding, which has high production efficiency and good product quality.

[0104] In this embodiment, the end cap 20 is provided with a second explosion-proof hole 21 , and the shell 10 is provided with a first explosion-proof hole 11 . Explosion-proof valves are provided in both the first explosion-proof hole 11 and the second explosion-proof hole 21 to improve the safety performance of the battery 100 .

[0105] Optionally, the first explosion-proof hole 11 corresponds to the position of the fixing assembly 60 to shorten the gas exhaust path and the gas exhaust stroke, thereby improving the safety performance of the battery 100.

[0106] Example 3

[0107] 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.

[0108] 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.

[0109] The following examples are for convenience of description. Figure 15 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, head, or tail 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 to form a battery pack or battery module. A hybrid configuration refers to multiple batteries 100 being connected both in series and in parallel.

[0110] 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.

[0111] 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 .

[0112] 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.

[0113] 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: Support member (50); A pole group (30) comprising at least two pole group members (31) arranged along a first direction; At least one fixing assembly (60), the fixing assembly (60) is arranged between two adjacent pole group members (31), the fixing assembly (60) comprises a first fixing member (61) and a second fixing member (62), one of the two adjacent pole group members (31) is plugged into the first fixing member (61), and the other is plugged into the second fixing member (62), the first fixing member (61) and the second fixing member (62) are plugged into each other, and the support member (50) is arranged at both ends of the pole group (30) along the first direction.

2. The battery according to claim 1, characterized in that One of the first fixing member (61) and the second fixing member (62) is provided with an inserting portion (621), and the other is provided with an inserting slot (611) adapted to the inserting portion (621), and the inserting portion (621) is plugged and matched with the inserting slot (611).

3. The battery according to claim 1, characterized in that The fixing assembly (60) is provided with a protective groove (6001), the protective groove (6001) passes through the first fixing member (61) and the second fixing member (62), and the pole ears of two adjacent pole group components (31) are connected and pass through the protective groove (6001).

4. The battery according to claim 3, characterized in that The second fixing member (62) is provided with a flow hole (624), and the flow hole (624) is communicated with the protective groove (6001).

5. The battery according to any one of claims 1 to 4, characterized in that: The support member (50) comprises: a substrate (51) abutting against one end of the electrode group (30) along the first direction; A plurality of side panels (52) are provided, wherein the side panels (52) are vertically arranged on the base plate (51), and the plurality of side panels (52) and the base plate (51) are arranged to form a fixing groove (5001), and at least a portion of the pole group (30) is inserted into the fixing groove (5001).

6. The battery according to claim 5, characterized in that The dimension of the side plate (52) in the first direction is L, and L is greater than or equal to 5 mm and less than or equal to 20 mm.

7. The battery according to any one of claims 1 to 4, characterized in that: The battery further comprises: Housing (10); The protective member (70) is arranged on two opposite side surfaces of the pole group component (31) and abuts against the inner wall of the shell (10).

8. The battery according to claim 7, characterized in that The protective member (70) comprises: A main body plate (71) abuts against a side surface of the pole group component (31) along a third direction; An extension portion (72) is formed by extending the two side edges of the main plate (71) along the second direction toward the interior of the pole group component (31) along the third direction, and the extension portion (72) abuts against the side surface of the pole group component (31) along the second direction, and the first direction, the second direction and the third direction are arranged at an angle to each other.

9. The battery according to claim 8, characterized in that The main body plate (71) is provided with a plurality of through holes (711), and the plurality of through holes (711) are arranged in an array.

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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