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 shell, a pole group and a fixing mechanism, the pole group comprises at least two pole group split bodies arranged in the first direction, the fixing mechanism comprises side plates and at least two fixing sleeves, the side plates are arranged on the two sides of the pole group in the first direction, the fixing sleeves are arranged on the peripheries of the side plates and the pole group in a sleeving mode, and the at least two fixing sleeves are arranged in the second direction at intervals; the at least two fixing sleeves are arranged at the two ends of the pole group in the second direction respectively, the fixing mechanism is arranged in the shell, the pole group split bodies can be fixed through the fixing sleeves, shaking of the pole group split bodies is avoided, then deformation and damage of the pole group split bodies are avoided, the structural stability of the pole group is improved, and the service life of the battery is prolonged; by arranging the side plates, the pole group split bodies can be prevented from being damaged by the fixing sleeves.

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 longer / wider electrode assemblies. When the electrode assembly is too long / wide, due to its strength issues, it often bends and deforms, resulting in defects such as wrinkles, deformation, delamination, and breakage of the electrode sheets, leading to a decrease in yield. To solve this problem, some related technologies provide batteries that divide the electrode assembly into multiple electrode components to shorten the size of individual electrode components. However, since the electrode assembly is usually housed in a casing, there are gaps between adjacent electrode components. During battery use, the electrode components will shake within the casing, which can easily cause deformation and damage to the electrode components, leading to battery failure and even safety hazards.

[0004] Therefore, there is an urgent need for a battery and power supply device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a battery and an electrical device that can fix multiple electrode components separately, prevent the electrode components from shaking, thereby preventing the electrode components from deforming and being damaged, improving the structural stability of the electrode assembly, and extending the battery's service life.

[0006] To achieve the above objectives, the following technical solution is provided:

[0007] A battery comprising:

[0008] case;

[0009] An electrode group includes at least two electrode groups arranged along a first direction;

[0010] The fixing mechanism includes a side plate and at least two fixing sleeves. The side plate is disposed on both sides of the electrode group along the first direction. The fixing sleeves are sleeved on the outer periphery of the side plate and the electrode group. At least two fixing sleeves are arranged at intervals along the second direction, and at least two fixing sleeves are respectively disposed at both ends of the electrode group along the second direction. The fixing mechanism is disposed inside the housing. The first direction and the second direction are arranged at an angle.

[0011] As an optional solution, the fixing sleeve includes two first connecting plates arranged along the first direction and two second connecting plates arranged along the third direction. The first connecting plates and the second connecting plates are connected end to end, and the first direction, the second direction and the third direction are arranged at an angle to each other.

[0012] As an optional feature, the battery further includes a separator sandwiched between two adjacent electrode components.

[0013] As an optional solution, the partition includes:

[0014] The main plate is sandwiched between two adjacent polar component parts;

[0015] A fixing part is disposed at both ends of the main body plate along the second direction. The fixing part is formed by extending from both ends of the main body plate along the second direction toward the first direction. The fixing part abuts against the side of the polar component along the second direction.

[0016] As an optional feature, the battery also includes:

[0017] An end cap is provided at one of the openings of the housing along the second direction;

[0018] A sealing element is provided at another opening of the housing.

[0019] As an optional solution, the end cap includes:

[0020] A cover plate is provided at another opening of the housing, and a positive output terminal is provided on the cover plate. The positive electrode tab of the electrode group is connected to the positive output terminal.

[0021] The negative output terminal is inserted through the cover plate, and the negative electrode tab of the electrode group is connected to the negative output terminal;

[0022] An insulating component is disposed between the negative output terminal and the cover plate.

[0023] As an optional solution, the end cap further includes:

[0024] The first support protrusion is provided on both sides of the cover plate along its length direction and extends along the width direction of the cover plate.

[0025] As an optional solution, the sealing element includes:

[0026] A sealing plate is provided at one of the openings of the housing;

[0027] Multiple second support protrusions are provided on the inner side of the sealing plate.

[0028] As an optional solution, the thickness of the sealing plate is T, where T is greater than or equal to 1 mm and less than or equal to 2 mm.

[0029] 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.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0031] The battery provided by this utility model divides the electrode assembly into multiple electrode components to shorten the size of each individual electrode component, avoiding bending and deformation of the electrode assembly due to excessive length / width, and preventing problems such as wrinkles, deformation, delamination, and breakage of the electrode sheets. By setting a fixing sleeve on the outer periphery of the electrode assembly, the multiple electrode components are fixed, preventing the electrode components from shaking, thereby preventing deformation and damage, improving the structural stability of the electrode assembly, and extending the battery's service life. By setting side plates on both sides of the electrode assembly, it can prevent the fixing sleeve from damaging the electrode components, and also prevent the sides of the electrode assembly from directly contacting the inner wall of the casing when the electrode assembly is inserted into the casing, thereby preventing damage during the insertion of the electrode assembly into the casing.

[0032] The electrical device provided by this utility model, by using the aforementioned battery, has a longer service life, higher battery capacity, and higher voltage, thereby improving the device's endurance and safety performance. Attached Figure Description

[0033] 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.

[0034] Figure 1 An exploded view of the battery provided in Embodiment 1 of this utility model;

[0035] Figure 2 This is a structural diagram of the fixing mechanism, partition, protective plate and pad provided in Embodiment 1 of this utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the partition provided in Embodiment 1 of this utility model;

[0037] Figure 4This is a schematic diagram of the structure of the fixing sleeve provided in Embodiment 1 of this utility model;

[0038] Figure 5 This is a schematic diagram of the first structure of the sealing component provided in Embodiment 1 of this utility model;

[0039] Figure 6 This is a schematic diagram of the second structure of the sealing component provided in Embodiment 1 of this utility model;

[0040] Figure 7 This is a schematic diagram of the first structure of the end cap provided in Embodiment 1 of the present utility model;

[0041] Figure 8 This is a schematic diagram of the second structure of the end cap provided in Embodiment 1 of the present utility model;

[0042] Figure 9 This is a cross-sectional view of the end cap provided in Embodiment 1 of this utility model;

[0043] Figure 10 This is a structural schematic diagram of the vehicle provided in Embodiment 2 of this utility model.

[0044] Figure label:

[0045] 1000, vehicles;

[0046] 100. Battery;

[0047] 10. Housing; 11. Explosion-proof vent;

[0048] 20. End cap; 21. Cover plate; 211. Positive output terminal; 22. First support protrusion; 23. Insulating component; 24. Negative output terminal;

[0049] 30. Electrode group; 31. Electrode group components;

[0050] 40. Insulating film; 41. Clearance hole;

[0051] 50. Fixing mechanism; 51. Side plate; 52. Fixing sleeve; 521. First connecting plate; 522. Second connecting plate;

[0052] 60. Partition; 61. Main body plate; 62. Fixing part;

[0053] 70. Sealing component; 71. Sealing plate; 72. Second support protrusion;

[0054] 81. Protective plate; 811. Electrode lug hole; 82. Pad;

[0055] 200, controller; 300, motor. Detailed Implementation

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] Example 1

[0063] 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.

[0064] To avoid deformation of the electrode assembly 30 due to excessive size, the electrode assembly 30 includes two electrode components 31 arranged along a first direction, connected in series. In other embodiments, the number of electrode components 31 may be three, four, or more, with multiple electrode components 31 connected in series, parallel, or mixed to improve the capacity and voltage of the battery 100. Mixed connection refers to a configuration where multiple electrode components 31 are connected in both series and parallel.

[0065] 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.

[0066] In actual use, due to the gap between adjacent electrode components 31, the electrode components 31 will shake inside the casing 10, which can easily cause the electrode components 31 to deform and be damaged, resulting in damage and failure of the battery 100, or even causing safety hazards.

[0067] To solve the above problems, such as Figure 1 and Figure 2 As shown, the battery 100 provided in this embodiment also includes a fixing mechanism 50. The fixing mechanism 50 includes a side plate 51 and two fixing sleeves 52. The side plate 51 is disposed on both sides of the electrode group 30 along the first direction. The fixing sleeves 52 are sleeved on the outer periphery of the side plate 51 and the electrode group 30. The two fixing sleeves 52 are arranged at intervals along the second direction and are respectively disposed at both ends of the electrode group 30 along the second direction. In other embodiments, the number of fixing sleeves 52 may be three, four or more, and multiple fixing sleeves 52 may be disposed at both ends of the electrode group 30 along the second direction.

[0068] By dividing the electrode assembly 30 into multiple electrode component parts 31, the size of each individual electrode component part 31 is shortened, preventing the electrode assembly 30 from bending and deforming due to excessive length / width, and avoiding problems such as wrinkles, deformation, delamination, and breakage of the electrode sheets. By setting a fixing sleeve 52 on the outer periphery of the electrode assembly 30, the multiple electrode component parts 31 are firmly fixed together, preventing the electrode component parts 31 from shaking, colliding with each other, or shifting, thereby preventing deformation and damage to the electrode component parts 31, improving the structural stability of the electrode assembly 30, and extending the service life of the battery 100. By setting side plates 51 on both sides of the electrode assembly 30, on the one hand, the fixing sleeve 52 can prevent damage to the electrode component parts 31, and on the other hand, when the electrode assembly 30 is inserted into the casing, it can prevent the sides of the electrode assembly 30 from directly contacting the inner wall of the casing 10, thereby preventing damage to the electrode assembly 30 when it is inserted into the casing.

[0069] 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 be set at other angles, which are not limited here. In another optional embodiment, the first direction may be the length direction of the battery 100, and the second direction may be the width direction of the battery 100.

[0070] like Figures 1-3 As shown, the battery 100 also includes a separator 60, which is sandwiched between two adjacent electrode components 31 to support the electrode components 31 and prevent short circuits between the two adjacent electrode components 31.

[0071] Specifically, the partition 60 includes a main plate 61 and a fixing part 62. The main plate 61 is sandwiched between two adjacent polar component parts 31. The fixing part 62 is provided at both ends of the main plate 61 along the second direction. The fixing part 62 is formed by extending from both ends of the main plate 61 along the second direction toward the first direction. The fixing part 62 abuts against the side of the polar component parts 31 along the second direction. By providing the fixing part 62, the polar component parts 31 are limited along the second direction, and the polar component parts 31 are prevented from shifting along the second direction.

[0072] like Figure 1 , Figure 2 and Figure 4 As shown, the fixing sleeve 52 includes two first connecting plates 521 arranged along the first direction and two second connecting plates 522 arranged along the third direction. The first connecting plates 521 and the second connecting plates 522 are connected end to end to form a structure with open ends. During assembly, the fixing sleeve 52 is inserted into the outside of the pole group 30 and the side plate 51 from one end of the pole group 30 along the second direction, which is simple and quick to install.

[0073] In this embodiment, the third direction is the thickness direction of the battery 100, meaning that 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 can also be set at other included angles.

[0074] Optionally, the fixing sleeve 52 is molded by one-piece injection molding, which has high strength and high production efficiency.

[0075] In this embodiment, the housing 10 has openings at both ends along the second direction. The battery 100 also includes end caps 20 and sealing members 70. The two end caps 20 are respectively covered at the corresponding openings, the sealing member 70 is covered at one of the openings, and the end caps 20 are covered at the other opening. The electrode group 30 is connected to the end caps 20. That is to say, the positive and negative output terminals of the battery 100 are set at the same end of the battery 100, which reduces the manufacturing process difficulty and cost of the battery 100. The end caps 20 are connected to the main body of the external power device, realizing the power supply function of the battery 100 to the main body of the power device.

[0076] like Figure 1 , Figure 5 and Figure 6 As shown, the sealing member 70 includes a sealing plate 71 and a plurality of second support protrusions 72. The sealing plate 71 covers one of the openings of the housing 10. The sealing plate 71 is elongated, and the second support protrusions 72 extend along the length of the sealing plate 71. The plurality of second support protrusions 72 are spaced apart along the width of the sealing plate 71, which can improve the strength of the sealing plate 71 and prevent the sealing plate 71 from deforming. In other embodiments, the second support protrusions 72 may also extend along the width of the sealing plate 71, and the plurality of second support protrusions 72 may be spaced apart along the length of the sealing plate 71, which can also achieve the above-mentioned effect.

[0077] Optionally, the thickness of the sealing plate 71 is T, which is greater than or equal to 1 mm and less than or equal to 2 mm, to ensure the structural strength of the sealing plate 71 while avoiding excessive size of the sealing plate 71 that would occupy too much space inside the housing 10. For example, the value of the dimension T of the sealing plate 71 in the first direction can be 1 mm, 1.1 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. Of course, in other embodiments, the value of T is not limited to the above range and can be adjusted according to requirements.

[0078] Optionally, a pad 82 is provided between the sealing member 70 and the electrode assembly 30. The pad 82 abuts against the second support protrusion 72 to form a gap between the pad 82 and the sealing plate 71. This gap facilitates venting and provides structural support for the electrode assembly 30, maintaining its shape and integrity. In addition, it can insulate the sealing member 70 and the electrode assembly 30 and provide cushioning and shock absorption for the electrode assembly 30.

[0079] like Figure 1 , Figures 7-9 As shown, the end cap 20 includes a cover plate 21, a negative output terminal 24, and an insulating member 23. The cover plate 21 covers another opening of the housing 10. A positive output terminal 211 is provided on the cover plate 21. The positive electrode tab of the electrode group 30 is connected to the positive output terminal 211. The negative output terminal 24 passes through the cover plate 21. The negative electrode tab of the electrode group 30 is connected to the negative output terminal 24. The insulating member 23 is disposed between the negative output terminal 24 and the cover plate 21. By placing the positive output terminal 211 and the negative output terminal 24 at the cover plate 21, the manufacturing process difficulty and cost of the battery 100 are reduced. The insulating member 23 achieves insulation between the cover plate 21 and the negative output terminal 24, avoiding short circuit between the negative output terminal 24 and the cover plate 21.

[0080] Optionally, at least a portion of the insulating element 23 is located between the cover plate 21 and the first side plate 51 to improve the insulation effect between the cover plate 21 and the pole group 30.

[0081] Optionally, the positive output terminal 211 is a convex bulge formed by stamping the cover plate 21, which can reduce processing steps such as welding or riveting, reduce production costs, and at the same time reduce the risk of electrolyte leakage caused by the joint.

[0082] Optionally, the end cap 20 also includes a first support protrusion 22. The cover plate 21 is elongated, and the first support protrusion 22 is disposed on both sides of the cover plate 21 along the length direction. The first support protrusion 22 extends along the width direction of the cover plate 21. By providing the first support protrusion 22 on the cover plate 21, 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.

[0083] Optionally, a protective plate 81 is provided between the electrode assembly 30 and the end cap 20. The protective plate 81 abuts against the first support protrusion 22 to form a gap between the cover plate 21 and the protective plate 81. This gap facilitates venting, thereby improving the safety of the battery 100 in use.

[0084] Two tab holes 811 are provided on the protective plate 81. The positive tab of the electrode group 30 passes through one of the tab holes 811 and is connected to the positive output terminal 211, and the negative tab passes through the other tab hole 811 and is connected to the negative output terminal 24.

[0085] like Figure 1 As shown, the housing 10 has two explosion-proof holes 11 on each of its two sides along a third direction. The two explosion-proof holes 11 are arranged at intervals along a second direction. An explosion-proof valve is installed inside each explosion-proof hole 11. When an internal energy abnormality 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 opens, and the gas is discharged from the explosion-proof hole 11, releasing the internal pressure of the housing 10 and preventing the battery 100 from thermal runaway and exploding or catching fire, thus improving the safety of the battery 100. In other embodiments, the number and location of the explosion-proof holes 11 can be adjusted according to actual needs.

[0086] like Figure 1 As shown, the battery 100 also includes an insulating film 40, which covers the outer periphery of the electrode assembly 30 and the fixing mechanism 50 and is located inside the housing 10. After the electrode assembly 30 and the fixing mechanism 50 are assembled, the insulating film 40 is applied, and then the electrode assembly 30 covered with the insulating film 40 is 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.

[0087] Optionally, the insulating film 40 is provided with a clearance hole 41 on one side near the end cap 20 along the second direction so that the electrode tab can extend out through the clearance hole 41.

[0088] Optionally, the insulating film 40 is provided with slits, and the explosion-proof holes 11 are provided directly opposite to the slits and in a one-to-one correspondence, so that the gas in the electrode group 30 can be quickly discharged through the slits.

[0089] Example 2

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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: Shell (10); The pole group (30) includes at least two pole group components (31) arranged along a first direction; The fixing mechanism (50) includes a side plate (51) and at least two fixing sleeves (52). The side plate (51) is disposed on both sides of the electrode group (30) along the first direction. The fixing sleeves (52) are sleeved on the outer periphery of the side plate (51) and the electrode group (30). At least two fixing sleeves (52) are arranged at intervals along the second direction, and at least two fixing sleeves (52) are respectively disposed at both ends of the electrode group (30) along the second direction. The fixing mechanism (50) is disposed inside the housing (10). The first direction and the second direction are arranged at an angle.

2. The battery of claim 1, wherein, The fixing sleeve (52) includes two first connecting plates (521) arranged along the first direction and two second connecting plates (522) arranged along the third direction. The first connecting plates (521) and the second connecting plates (522) are connected end to end, and the first direction, the second direction and the third direction are arranged at an angle to each other.

3. The battery of claim 1, wherein, The battery also includes a separator (60) sandwiched between two adjacent electrode components (31).

4. The battery of claim 3, wherein, The partition (60) includes: The main body plate (61) is sandwiched between two adjacent polar component parts (31); A fixing part (62) is provided at both ends of the main body plate (61) along the second direction. The fixing part (62) is formed by extending from both ends of the main body plate (61) along the second direction toward the first direction. The fixing part (62) abuts against the side of the polar component (31) along the second direction.

5. The battery according to any one of claims 1-4, characterized in that, The battery also includes: End cap (20), the housing (10) has openings at both ends along the second direction, and the end cap (20) covers one of the openings of the housing (10); A sealing element (70) is provided at another opening of the housing (10).

6. The battery of claim 5, wherein, The end cap (20) includes: A cover plate (21) is provided on another opening of the housing (10), and a positive output terminal (211) is provided on the cover plate (21). The positive electrode tab of the electrode group (30) is connected to the positive output terminal (211). The negative output terminal (24) is inserted through the cover plate (21), and the negative electrode tab of the electrode group (30) is connected to the negative output terminal (24); An insulating element (23) is disposed between the negative output terminal (24) and the cover plate (21).

7. The battery of claim 6, wherein, The end cap (20) also includes: The first support protrusion (22) is provided on both sides of the cover plate (21) along the length direction and extends along the width direction of the cover plate (21).

8. The battery of claim 5, wherein, The sealing element (70) includes: A sealing plate (71) is provided at one of the openings of the housing (10); Multiple second support protrusions (72) are provided on the inner side of the sealing plate (71).

9. The battery of claim 8, wherein, The thickness of the closure plate (71) is T, T is greater than or equal to 1 mm and less than or equal to 2 mm.

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

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