Battery and electric device

Abstract

The utility model relates to a battery and an electric device. The battery comprises a plurality of stacked single batteries, and each single battery comprises a main body and two poles; in the same single battery, the two poles are arranged on two opposite sides of the main body along the stacking direction of the single battery; and in two adjacent layers of battery monomers, the two oppositely arranged pole columns are inserted in the stacking direction of the battery monomers in a concave-convex matching manner. According to the battery and the electric device provided by the invention, the safety can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery and a power utilization device. BACKGROUND

[0002] In recent years, the new energy industry has been getting more and more attention, and as an important part of the new energy industry, batteries account for a large share in the market. A battery is formed by a plurality of battery monomers connected in series, in parallel or in a mixed manner.

[0003] In order to facilitate the replacement of battery monomers, a battery connected by elastic contact fingers has been developed, in which the bus bar and the pole are connected by elastic contact fingers. However, this connection method is not suitable for complex working conditions, such as vibration working conditions during vehicle driving, and the bus bar and the pole are easy to disconnect, which leads to power failure during driving and reduces safety. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a battery and a power utilization device capable of improving safety in view of the above problems.

[0005] In one aspect, the present application provides a battery, which includes a plurality of battery monomers stacked and arranged, wherein each battery monomer includes a main body and two pole columns.

[0006] In the same battery monomer, the two pole columns are arranged on opposite sides of the main body along the stacking direction of the battery monomer.

[0007] In the adjacent two layers of battery monomers, the two oppositely arranged pole columns are inserted along the stacking direction of the battery monomers by means of concave-convex matching.

[0008] In some embodiments, the plurality of battery monomers are stacked and arranged along the thickness direction of the main body, and in the adjacent two battery monomers, the two main bodies are arranged along the thickness direction and the opposite surfaces are at least partially attached.

[0009] In the same battery monomer, the two pole columns are arranged on opposite sides of the main body along the thickness direction of the main body, and are arranged on opposite ends of the main body along the length direction of the main body.

[0010] In some embodiments, the main body includes a main body portion and a sink pad arranged on opposite sides of the main body portion along the length direction of the main body, and on one side of the main body along the thickness direction thereof, the sink pad is recessed relative to the main body portion and forms a mounting space.

[0011] In the same battery monomer, two of the poles are arranged on the two sunken bases on the two sides of the main body.

[0012] In some embodiments, in the same battery monomer, and on the other side of the main body along the thickness direction, the main body is flush with the surface of the sunken base.

[0013] In some embodiments, in the same battery monomer, either of the two poles includes a plug-in protrusion, and the other of the two poles is provided with a plug-in groove.

[0014] In the two adjacent layers of the battery monomers, and in the two oppositely arranged poles, the plug-in protrusion is inserted into the plug-in groove along the stacking direction of the battery monomers.

[0015] In some embodiments, the pole with the plug-in protrusion further includes a base, and the plug-in protrusion protrudes from the base.

[0016] In the two adjacent layers of the battery monomers, and in the two oppositely arranged poles, the base covers the slot of the plug-in groove.

[0017] In some embodiments, a plurality of the battery monomers are arranged in a stacking manner along the thickness direction of the main body, in the same battery monomer, the pole with the plug-in groove is provided with a dismounting opening at one end arranged along the width direction of the main body, the dismounting opening communicates with the plug-in groove, and the plug-in protrusion enters and exits the plug-in groove through the dismounting opening.

[0018] In some embodiments, the pole with the plug-in groove and the dismounting opening includes a first flat portion, a second flat portion, and an arc-shaped portion; the first flat portion and the second flat portion are arranged in a spaced manner along the length direction of the main body, the arc-shaped portion is connected between the first flat portion and the second flat portion, and the first flat portion and the second flat portion define the plug-in groove, and the two ends of the first flat portion and the second flat portion away from the arc-shaped portion define the dismounting opening.

[0019] In some embodiments, the battery monomer further includes an elastic contact finger, which elastically abuts between the slot wall of the plug-in groove and the plug-in protrusion, and is electrically connected with the slot wall of the plug-in groove and the plug-in protrusion.

[0020] In another aspect, the application also provides an electric device, which includes the battery as described in any one of the above embodiments, and the battery is used to provide electric energy for the electric device.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] In the aforementioned battery and electrical device, within the same battery cell, the two terminals are arranged on opposite sides of the main body along the stacking direction of the battery cells. In adjacent layers of battery cells, the opposing terminals are inserted into each other along the stacking direction of the battery cells through a concave-convex fit. Under this design, on the one hand, the insertion method facilitates the disassembly and replacement of battery cells. On the other hand, since the insertion direction of the opposing terminals in adjacent layers of battery cells is the same as the stacking direction of the battery cells, in adjacent layers of battery cells, the upper battery cell can be pressed and fixed to the lower battery cell under its own gravity, avoiding the occurrence of poor insertion caused by vibration causing the positive and negative terminals to separate. This results in higher safety. Moreover, by using the two-terminal insertion method to connect adjacent battery cells in series or parallel, the design of the busbar is omitted, improving the space utilization of the battery and reducing the manufacturing cost of the battery. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a battery with multiple battery cells stacked in one embodiment of this application;

[0024] Figure 2 for Figure 1 An enlarged schematic diagram of a portion of structure A in the battery shown;

[0025] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the battery taken along the BB direction.

[0026] Figure 4 for Figure 3 An enlarged schematic diagram of a local structure C in the battery shown;

[0027] Figure 5 for Figure 1 The diagram shows the structure of a single battery cell in the battery.

[0028] Figure 6 for Figure 5 An enlarged schematic diagram of the partial structure D of the battery cell shown;

[0029] Figure 7 for Figure 5 An inverted view of a single battery cell in the battery shown;

[0030] Figure 8 for Figure 7 An enlarged schematic diagram of a partial structure E of the battery cell shown.

[0031] Icon labels:

[0032] 1000, battery;

[0033] 100, battery cell;

[0034] 10, main body; 20, positive pole; 30, negative pole; 40, elastic contact finger;

[0035] 11, main body part; 12, sink; 13, mounting space;

[0036] 21, base; 22, plug-in convex part;

[0037] 31, plug-in groove; 32, dismounting opening; 33, first flat part; 34, second flat part; 35, arc part; X, length direction; Y, width direction; Z, thickness direction. DETAILED DESCRIPTION

[0038] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated to cover all such modifications as fall within the scope of the application. It is to be understood that the application is not limited in its application to the details set forth in the description below.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0040] In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0041] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connection", "fixed", and the like, should be construed broadly and, for example, can be a fixed connection, or a detachable connection, or integral; can be a mechanical connection, or an electrical connection; can be a direct connection, or an indirect connection via an intermediate medium; can be a communication inside two elements, or an interaction between two elements, unless specifically defined otherwise. The specific meanings of the above terms in the present application can be understood according to the specific circumstances by those of ordinary skill in the art.

[0042] In the present application, unless specifically defined otherwise, a first feature "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate medium. Moreover, the first feature "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under", and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a mediating element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a mediating element. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0044] At present, from the development of market situation, the application of battery is more and more widely. The battery is not only applied to the energy storage power supply system of hydraulic, thermal, wind and solar power station, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of battery, the demand of its market is also increasing.

[0045] In order to facilitate the replacement of battery monomer, a kind of battery connected by elastic contact finger is currently generated, and the bus bar and the pole are connected by elastic contact finger. However, this connection mode is not good for application in complex working conditions, such as in the vibration working condition of vehicle driving, the bus bar and the pole are easy to separate, which leads to power failure in driving process and reduces safety.

[0046] Please refer to Figure 1 and Figure 2In order to alleviate the above problems, the battery 1000 provided by the present application comprises a plurality of battery monomers 100 arranged in stacks, wherein each battery monomer 100 comprises a main body 10 and two poles. In the same battery monomer 100, the two poles are arranged on opposite sides of the main body 10 along the stacking direction of the battery monomer 100; in the adjacent two layers of battery monomers 100, the two oppositely arranged poles are inserted in the stacking direction of the battery monomer 100 through the concave-convex matching mode.

[0047] For example, the battery monomer 100 can be a square battery 1000, a blade battery 1000, etc.

[0048] Specifically, in the same battery monomer 100, the two poles are a positive pole 20 and a negative pole 30, respectively; in the adjacent two layers of battery monomers 100, the two inserted poles can both be positive poles 20, or both be negative poles 30, or one be a positive pole 20 and the other be a negative pole 30.

[0049] The stacking direction of the battery monomer 100 is the same as the direction of the gravity acting on the battery monomer 100, and when the two poles are arranged on opposite sides of the main body 10 along the stacking direction of the battery monomer 100, the two poles are arranged on the top side and the bottom side of the main body 10 along the stacking direction of the battery monomer 100.

[0050] In the adjacent two layers of battery monomers 100, the two oppositely arranged poles are inserted in the stacking direction of the battery monomer 100 through the concave-convex matching mode. Specifically, in the adjacent two layers of battery monomers 100, one of the two oppositely arranged poles has a convex portion, the other has a concave portion, and the two oppositely arranged poles are matched through the concave portion and the convex portion. In the same battery monomer 100, the two poles can both have concave portions, or both have convex portions, or have opposite concave-convex portions.

[0051] For convenience of description, the following embodiments are described by taking the example that in the same battery monomer 100, the positive pole 20 is provided with a convex portion and the negative pole 30 is provided with a concave portion, and in the adjacent two layers of battery monomers 100, the oppositely arranged positive pole 20 and negative pole 30 are connected through the concave-convex matching mode.

[0052] In the present application, in the same battery monomer 100, the two pole columns are arranged on the opposite sides of the main body 10 along the stacking direction of the battery monomer 100, and in the adjacent two layers of battery monomers 100, the two pole columns arranged oppositely are inserted in the stacking direction of the battery monomer 100 in a concave-convex matching manner. In this design, on the one hand, the insertion manner can facilitate the disassembly and replacement of the battery monomer 100, and on the other hand, the insertion direction of the two pole columns arranged oppositely in the adjacent two layers of battery monomers 100 is the same as the stacking direction of the battery monomer 100, so that the upper battery monomer 100 in the adjacent two layers of battery monomers 100 can be pressed and fixed with the lower battery monomer 100 under the action of its own gravity, avoiding the situation that the positive pole column 20 and the negative pole column 30 are separated due to vibration, and the situation of poor insertion occurs, which is safer and can be applied to complex working conditions. Moreover, the series or parallel connection between the adjacent two battery monomers 100 is realized by the insertion of the two pole columns, which omits the design of the bus bar, improves the space utilization rate of the battery 1000, and reduces the manufacturing cost of the battery 1000.

[0053] Please refer to Figure 1 and Figure 2 , and Figures 4 to 8 In some embodiments, a plurality of battery monomers 100 are stacked along the thickness direction Z of the main body 10, and in the adjacent two battery monomers 100, the two main bodies 10 are arranged along the thickness direction Z and the opposite two surfaces are at least partially attached; in the same battery monomer 100, the two pole columns are arranged on the opposite sides of the main body 10 along the thickness direction Z of the main body 10 and on the opposite ends of the main body 10 along the length direction X of the main body 10.

[0054] It can be understood that the size of the battery monomer 100 in the thickness direction Z is smaller than the size of the battery monomer 100 in the length direction X and the width direction Y. When the battery monomers 100 are stacked along the thickness direction Z of the main body 10, the center of gravity of the battery monomer 100 is low, and the stacking is more stable and less likely to collapse.

[0055] In addition, the surface of the battery monomer 100 arranged along the thickness direction Z is larger than the surface of the battery monomer 100 arranged along the length direction X or the width direction Y, and when the two main bodies 10 are arranged along the thickness direction Z and the opposite two surfaces are at least partially attached, the contact area between the main bodies 10 of the adjacent two battery monomers 100 is large, further improving the stability of the stacking.

[0056] In the same battery monomer 100, the two pole columns are arranged on opposite sides of the main body 10 along the thickness direction Z of the main body 10, and are arranged on opposite ends of the main body 10 along the length direction X of the main body 10. Therefore, in the three layers of battery monomers 100 stacked in sequence, the pole column at one end of the battery monomer 100 in the middle is inserted with the pole column of the battery monomer 100 in the upper layer, and the pole column at the other end of the battery monomer 100 in the middle is inserted with the pole column of the battery monomer 100 in the lower layer, so that the upper battery monomer 100 and the lower battery monomer 100 can be connected to the two ends of the middle battery monomer 100 along the length direction X of the main body 10, further improving the stability and reliability of the stack.

[0057] Please refer to Figure 1 and Figure 2 In some embodiments, the main body 10 includes a main body part 11 and a sink 12 arranged on opposite sides of the main body part 11 along the length direction X of the main body 10. On one side of the main body 10 along the thickness direction Z, the sink 12 is recessed relative to the main body part 11 and forms a mounting space 13. In the same battery monomer 100, two pole columns are arranged on the sinks 12 on the two sides of the main body part 11 respectively. In the two adjacent layers of battery monomers 100, the two surfaces of the two main body parts 11 arranged oppositely are attached, and the two pole columns on the same side of the two sinks 12 are located in the same mounting space 13 and are inserted.

[0058] The recess of the sink 12 relative to the main body part 11 and the formation of the mounting space 13 can accommodate the inserted two pole columns during stacking. On the one hand, it can avoid the interference of the pole columns with the stacking of the two main body parts 11 in the two adjacent layers of battery monomers 100, so that the two surfaces of the two main body parts 11 arranged oppositely in the two adjacent layers of battery monomers 100 are completely attached, the contact area is large, and the stacking is more stable. On the other hand, in the thickness direction Z of the main body 10, it can also ensure that the space occupied by the pole columns and the sink 12 coincides with the space occupied by the main body part 11, reduces the volume of the battery monomer 100, and improves the volume energy density.

[0059] Please refer to Figure 1 , Figure 2 and Figure 7 In some embodiments, in the same battery monomer 100, and on the other side of the main body 10 along the thickness direction Z, the surface of the main body part 11 is flush with the surface of the sink 12, forming a plane. When the plane faces upward and supports each layer of battery monomers 100 above it, since the plane has a large area, the pressure exerted by each layer of battery monomers 100 above the plane on the plane is reduced, and the possibility of deformation is also reduced, facilitating the support of the battery monomers 100.

[0060] Please refer to Figures 3 to 8In some embodiments, in the same battery cell 100, either of the two poles includes the insertion protrusion 22, and the other of the two poles includes the insertion groove 31; in the two adjacent battery cells 100, and in the two oppositely arranged poles, the insertion protrusion 22 is inserted into the insertion groove 31 along the stacking direction of the battery cell 100.

[0061] For example, the negative pole 30 of the battery cell 100 is provided with the insertion groove 31, and the positive pole 20 of the battery cell 100 is provided with the insertion protrusion 22. It can be understood that the insertion groove 31 is the recessed portion, and the insertion protrusion 22 is the protruding portion. For the convenience of description, the following embodiments are described by taking the positive pole 20 provided with the insertion protrusion 22 and the negative pole 30 provided with the insertion groove 31 as an example. The insertion protrusion 22 is inserted into the insertion groove 31, thereby achieving the insertion between the two adjacent battery cells 100.

[0062] Please refer to Figure 4 In some embodiments, the pole provided with the insertion protrusion 22 further includes a base portion 21, and the insertion protrusion 22 protrudes from the base portion 21; in the two adjacent battery cells 100, and in the two oppositely arranged poles, the base portion 21 covers the opening of the insertion groove 31. In this way, when the two adjacent battery cells 100 and the two oppositely arranged poles are inserted, the base portion 21 covers the opening of the insertion groove 31 and seals the insertion groove 31, so as to isolate the insertion protrusion 22 and the insertion groove 31 from external water vapor and the like, and ensure the reliability of the electrical connection between the insertion protrusion 22 and the insertion groove 31.

[0063] Please refer to Figures 3 to 8 In some embodiments, a plurality of battery cells 100 are stacked along the thickness direction Z of the main body 10, in the same battery cell 100, the pole provided with the insertion groove 31 is provided with a dismounting opening 32 at one end arranged along the width direction Y of the main body 10, the dismounting opening 32 is in communication with the insertion groove 31, and the insertion protrusion 22 enters or exits the insertion groove 31 through the dismounting opening 32.

[0064] The direction in which the insertion protrusion 22 enters or exits the insertion groove 31 through the dismounting opening 32 is perpendicular to the stacking direction.

[0065] When the battery cell 100 needs to be replaced due to damage, the battery cell 100 is pulled out from the side of the battery cell 100 facing the dismounting opening 32, at the same time, the plug-in protrusion 22 is moved out of the plug-in recess 31 through the dismounting opening 32, and then the battery cell 100 is replaced. When replacing, the battery cell 100 is pushed into from the side of the battery cell 100 facing the dismounting opening 32, and the plug-in protrusion 22 of the battery cell 100 enters the plug-in recess 31 through the dismounting opening 32, thereby completing the replacement of the battery cell 100. Due to the existence of the dismounting opening 32, the problem battery cell 100 can be dismounted alone without affecting the electrical connection of other normal battery cells 100, which is convenient to operate.

[0066] It is worth mentioning that the pole with the plug-in recess 31 is arranged along the width direction Y of the main body 10 and away from the other end of the dismounting opening 32, which can be used as a limiting part. When the battery cell 100 is installed, the plug-in protrusion 22 is installed to abut against the limiting part, which indicates that the installation of the battery cell 100 is completed.

[0067] Please refer to Figure 1 and Figure 8 In some embodiments, the pole with the plug-in recess 31 and the dismounting opening 32 is a U-shaped structure, and includes a first flat part 33, a second flat part 34, and an arc-shaped part 35. The first flat part 33 and the second flat part 34 are arranged in the length direction X of the main body 10 and are spaced apart, the arc-shaped part 35 is connected between the first flat part 33 and the second flat part 34 and defines the plug-in recess 31 together with the first flat part 33 and the second flat part 34, and the two ends of the first flat part 33 and the second flat part 34 away from the arc-shaped part 35 define the dismounting opening 32. The pole with this structure facilitates the formation of the plug-in recess 31 and the dismounting opening 32.

[0068] In some embodiments, the battery cell 100 further includes an elastic contact finger 40, which elastically abuts between the slot wall of the plug-in recess 31 and the plug-in protrusion 22 and is electrically connected with the slot wall of the plug-in recess 31 and the plug-in protrusion 22. The elastic contact finger 40 is arranged in the plug-in recess 31 and deforms during the process of the plug-in protrusion 22 being inserted into the plug-in recess 31 and abuts between the slot wall of the plug-in recess 31 and the plug-in protrusion 22. The two poles in the concave-convex cooperation are electrically connected through the elastic contact finger 40.

[0069] Specifically, the elastic contact finger 40 should also be provided with an opening, which is aligned and communicated with the dismounting opening 32, so that the plug-in protrusion 22 can enter and exit the elastic contact finger 40 when the battery cell 100 is dismounted.

[0070] By arranging the elastic contact finger 40, the elastic contact finger 40 can adjust the size of the space in the plug-in recess 31 cooperating with the plug-in protrusion 22 through deformation, which can adapt to the plug-in protrusion 22 with reasonable manufacturing tolerance, so that the manufacturing precision requirement of the two poles in plug-in cooperation is reduced.

[0071] The application also provides a power consuming device comprising the battery 1000 as described in the above embodiments, and the battery 1000 is used to provide power for the power consuming device. The power consuming device has the effects brought by any one of the above embodiments, and thus will not be described here.

[0072] The power consuming device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, an electric vehicle, an electric automobile, a ship, a spacecraft, etc. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric automobile toy, an electric ship toy, an electric aircraft toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0073] It should be understood that the technical solutions described in the embodiments of the application are not limited to the power consuming devices described above.

[0074] In the above battery 1000 and power consuming device, in the same battery monomer 100, the two pole columns are arranged on the opposite sides of the main body 10 along the stacking direction of the battery monomer 100, and in the adjacent two layers of battery monomers 100, the two pole columns arranged oppositely are inserted in the stacking direction of the battery monomer 100 through the concave-convex matching mode. In this design, on the one hand, the insertion mode can facilitate the disassembly and replacement of the battery monomer 100, and on the other hand, the insertion direction of the two pole columns arranged oppositely in the adjacent two layers of battery monomers 100 is the same as the stacking direction of the battery monomer 100, so that the upper battery monomer 100 in the adjacent two layers of battery monomers 100 can be pressed and fixed with the lower battery monomer 100 under the action of its own gravity, avoiding the situation that the positive pole column 20 and the negative pole column 30 are separated due to vibration, and the insertion is poor, and the safety is higher. Moreover, the series or parallel connection between the adjacent two battery monomers 100 is realized through the insertion of the two pole columns, the design of the bus bar is omitted, the space utilization rate of the battery 1000 is improved, and the manufacturing cost of the battery 1000 is reduced.

[0075] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the description.

[0076] The above-described embodiments only express several implementation manners of the application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. Therefore, the patent protection scope of the application should be subject to the appended claims.

Claims

1. A battery, characterized by, The battery comprises a plurality of battery cells (100) arranged in stacks, each battery cell (100) comprising a main body (10) and two poles; In the same battery cell (100), the two poles are arranged on opposite sides of the main body (10) along the stacking direction of the battery cell (100); In the adjacent two layers of battery cells (100), the two poles arranged oppositely are inserted in the stacking direction of the battery cell (100) through the concave-convex matching mode.

2. The battery of claim 1, wherein, The plurality of battery cells (100) are arranged in stacks along the thickness direction (Z) of the main body (10), and in the adjacent two battery cells (100), the two main bodies (10) are arranged along the thickness direction (Z) and the opposite surfaces are at least partially attached; In the same battery cell (100), the two poles are arranged on opposite sides of the main body (10) along the thickness direction (Z) of the main body (10) and on opposite ends of the main body (10) along the length direction (X) of the main body (10).

3. The battery of claim 2, wherein, The main body (10) comprises a main body portion (11) and a sunken platform (12) arranged on opposite sides of the main body portion (11) along the length direction (X) of the main body (10), and on one side of the main body (10) along the thickness direction (Z), the sunken platform (12) is recessed relative to the main body portion (11) and forms a mounting space (13); In the same battery cell (100), the two poles are arranged on the sunken platforms (12) on both sides of the main body portion (11), respectively; in the adjacent two layers of battery cells (100), the opposite surfaces of the two main body portions (11) are attached, and the two poles on the same side of the sunken platforms (12) are located in the same mounting space (13) and are inserted.

4. The battery of claim 3, wherein, In the same battery cell (100), and on the other side of the main body (10) along the thickness direction (Z), the main body portion (11) is flush with the surface of the sunken platform (12).

5. The battery according to any one of claims 1 to 4, characterized in that, In the same battery cell (100), any one of the two poles comprises an insertion protrusion (22), and the other of the two poles is provided with an insertion groove (31); In the adjacent two layers of battery cells (100), and in the two oppositely arranged poles, the insertion protrusion (22) is inserted into the insertion groove (31) along the stacking direction of the battery cell (100).

6. The battery of claim 5, wherein, The pole with the insertion protrusion (22) further comprises a base portion (21), and the insertion protrusion (22) protrudes from the base portion (21); In the adjacent two layers of battery cells (100), and in the two oppositely arranged poles, the base portion (21) covers the slot of the insertion groove (31).

7. The battery of claim 5, wherein, A plurality of the battery monomers (100) are arranged in a stacking manner along a thickness direction (Z) of the main body (10), and in the same battery monomer (100), the pole column with the plug-in recess (31) is provided with a dismounting opening (32) at one end arranged along a width direction (Y) of the main body (10), the dismounting opening (32) is communicated with the plug-in recess (31), and the plug-in protrusion (22) enters and exits the plug-in recess (31) through the dismounting opening (32).

8. The battery of claim 7, wherein, The pole column with the plug-in recess (31) and the dismounting opening (32) comprises a first flat portion (33), a second flat portion (34) and an arc-shaped portion (35); the first flat portion (33) and the second flat portion (34) are arranged in an interval manner along a length direction (X) of the main body (10), the arc-shaped portion (35) is connected between the first flat portion (33) and the second flat portion (34) and defines the plug-in recess (31) together with the first flat portion (33) and the second flat portion (34), and the two ends of the first flat portion (33) and the second flat portion (34) away from the arc-shaped portion (35) define the dismounting opening (32).

9. The battery of claim 5, wherein, The battery monomer (100) further comprises an elastic contact finger (40), which is elastically abutted between the slot wall of the plug-in recess (31) and the plug-in protrusion (22) and is electrically connected with the slot wall of the plug-in recess (31) and the plug-in protrusion (22).

10. An electrical device, characterized by The power consumption device comprises the battery as claimed in any one of claims 1 to 9, and the battery is used to provide electric energy for the power consumption device.

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