Battery cell module, battery and electric equipment
By designing connection parts on the cylindrical battery cell and setting matching mounting holes on the bracket, the problem of increased battery cell module size was solved, achieving a compact design and high energy density for the battery cell module, and improving the battery cell module's range and stability.
Patent Information
- Application Number
- CN202422826900.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In the existing technology, when cylindrical cells are assembled into modules, the increased gap between adjacent cells leads to an increase in the size of the cell module, making it impossible to simultaneously ensure the proper mounting of the cell support and the tight fit between the cells.
The connection part of the cylindrical battery cell is designed such that the projection of its main body along the axial direction is located inside the main body, and mounting holes with the same shape as the connection part are provided on the battery cell bracket to ensure that the battery cell bracket can be fitted onto the arranged battery cells, while reducing the gap between the battery cells.
Without reducing the capacity, the volume of the battery cell module is significantly reduced, the energy density and range are improved, and the stable installation of the battery cell bracket is ensured.
Smart Images
Figure CN223612570U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery technology, specifically relating to a cell module, a battery, and an electrical device. Background Technology
[0002] Batteries are commonly used power supply devices for electrical equipment, and they include battery cell modules.
[0003] In existing technologies, when manufacturing battery cell modules, multiple cylindrical cells are typically first evenly arranged on a horizontal plane at one end. Then, a cell support with circular mounting holes is fitted over the other end of the arranged cells to fix their relative positions, thus forming the battery cell module. However, when using this method, the sidewalls of adjacent cylindrical cells cannot be flush to allow the cell support to fit over them. This increases the gap between adjacent cells, resulting in an increase in the size of the battery cell module while maintaining the same capacitance.
[0004] To address the issue of increased battery cell module size, the sidewalls of the multiple cylindrical cells are pressed tightly together to reduce the gap between adjacent cells. However, this prevents the cell support structure from fitting over the already arranged cylindrical cells. Utility Model Content
[0005] The purpose of this utility model embodiment is to provide a cell module, battery and electrical equipment that can solve the problem in the related technology that when the side walls of multiple cylindrical cells are in close contact with each other, it is impossible to fit the cell bracket onto the multiple arranged cylindrical cells.
[0006] To solve the above-mentioned technical problems, this utility model is implemented as follows:
[0007] In a first aspect, this utility model provides a battery cell module, comprising at least two cylindrical battery cells and a battery cell support. Along the axial direction of the cylindrical battery cell, each cylindrical battery cell includes a cylindrical main body and a connecting portion disposed at at least one end of the main body, the projection of the connecting portion being located within the projection of the main body. The battery cell support is provided with a battery cell mounting hole, the shape of which is the same as the shape of the connecting portion. The connecting portion is inserted into the battery cell mounting hole, and the main bodies of two adjacent cylindrical battery cells are in contact.
[0008] Optionally, the connecting portion is provided at both ends of the main body of the cylindrical battery cell along the axial direction of the cylindrical battery cell.
[0009] Optionally, cylindrical surfaces of the plurality of cylindrical battery cells abut each other to form an array, and two adjacent rows of the cylindrical battery cells abut each other in a staggered manner.
[0010] Optionally, cylindrical surfaces of the plurality of cylindrical battery cells abut each other to form an array, and two adjacent rows of the cylindrical battery cells abut each other in a staggered manner.
[0011] Optionally, a cross section of the connecting portion of the cylindrical battery cell perpendicular to the axial direction is a polygon.
[0012] In a second aspect, the utility model embodiment further provides a battery, the battery includes a shell and the battery cell module of any one of the first aspect, the battery cell module is accommodated in the shell.
[0013] Optionally, the shell includes a main shell and a cover plate, the cover plate is fixedly connected to the main shell, and a glue groove is arranged at a connecting position of the cover plate and the main shell, and the glue groove is filled with sealant.
[0014] Optionally, the glue groove is arranged at a side edge of the cover plate, the cover plate is provided with a glue-transmitting hole, and the glue-transmitting hole is in communication with the glue groove.
[0015] Optionally, the glue-transmitting hole includes a plurality of glue-transmitting holes, and the plurality of glue-transmitting holes are uniformly arranged along an extension direction of the glue groove.
[0016] Optionally, the cover plate includes an inner plate, a connecting plate and an outer plate, a maximum area of the connecting plate is smaller than maximum areas of the inner plate and the outer plate, the inner plate and the outer plate are respectively connected to opposite sides of the connecting plate, and the inner plate, the outer plate and the connecting plate enclose an annular glue groove at an edge of the cover plate.
[0017] In a third aspect, the utility model embodiment further provides a power consumption device, and the power consumption device includes the battery of any one of the second aspect.
[0018] In the embodiment, since the cylindrical battery cell includes a cylindrical main body part, and the main body parts of two adjacent cylindrical battery cells are in contact, part of the cylindrical battery cells in the battery cell module are in contact with each other, so that the gap between the cylindrical battery cells can be reduced, the volume of the battery cell module can be reduced under the condition that the electric capacity is unchanged, and the energy density of the battery cell module is improved.
[0019] Then, since the connecting portion is arranged at at least one end of the main body portion of the cylindrical battery cell, and the projection of the connecting portion along the axial direction of the main body portion is located within the projection of the main body portion, when the plurality of cylindrical battery cells are arranged in the above arrangement mode, there is a gap between any two cylindrical battery cells at the same end. Then, since the battery cell support is provided with battery cell mounting holes, the number of battery cell mounting holes is the same as the number of cylindrical battery cells, the shape and size of the battery cell mounting holes are the same as the shape and size of the connecting portion, that is, the inner surface of the battery cell mounting hole and the outer surface of the connecting portion are matched. In this way, the connecting portion of each cylindrical battery cell corresponds to a battery cell mounting hole matched therewith, that is, the connecting portion of each cylindrical battery cell can be inserted into the corresponding battery cell mounting hole, so that the battery cell support can be smoothly sleeved on the arranged plurality of cylindrical battery cells.
[0020] When the connecting portion of the cylindrical battery cell is arranged in the above manner, the volume of the cylindrical battery cell is reduced compared to the volume when the connecting portion is not arranged, which may result in a slight reduction in the capacity of the battery cell module. However, when the connecting portion of the cylindrical battery cell is arranged in the above manner, the volume of the battery cell module is reduced, and the reduction in the volume of the battery cell module is obvious. Therefore, the energy density of the entire battery cell module is obviously increased, which is beneficial to the improvement of the endurance of the battery cell module under the condition that the volume of the battery cell module is unchanged.
[0021] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described as follows. BRIEF DESCRIPTION OF DRAWINGS
[0022] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
[0023] Figure 1 is a structural schematic view of a battery cell module provided by an embodiment of the present application;
[0024] Figure 2 is Figure 1 a structural schematic view of a cylindrical battery cell in
[0025] Figure 3 is Figure 1 an arrangement structure schematic view of the cylindrical battery cells inside the battery cell module in
[0026] Figure 4 is Figure 3 a local enlarged view of D in
[0027] Figure 5 is Figure 3Another local enlarged view at D;
[0028] Figure 6 is Figure 1 A structural schematic view of the battery cell support in D;
[0029] Figure 7 is a structural schematic view of a battery according to an embodiment of the present application;
[0030] Figure 8 is Figure 7 An exploded view of the battery in D;
[0031] Figure 9 is Figure 8 A structural schematic view of the cover plate in D;
[0032] Figure 10 is Figure 9 A structural schematic view of the cover plate when viewed along the X square in D.
[0033] Explanation of reference signs:
[0034] 1 - battery cell module, 11 - cylindrical battery cell, 111 - main body part, 112 - connecting part, 12 - battery cell support, 121 - battery cell mounting hole, 2 - outer shell, 21 - main shell, 22 - cover plate, 221 - inner plate, 222 - connecting plate, 223 - outer plate, 3 - insulation layer, 4 - adhesive layer, 5 - glue groove, 6 - glue passing hole, 7 - cured adhesive tape, 100 - battery. DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0036] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.
[0037] The utility model embodiment provides an electric core module 1, a battery 100 and a power utilization equipment, which are described in detail below with reference to specific examples and application scenarios.
[0038] Figure 1 is a structural schematic view of an electric core module 1 provided by the utility model embodiment, Figure 2 is Figure 1 a structural schematic view of a cylindrical electric core 11 in Figure 3 is Figure 1 a distribution structure schematic view of the cylindrical electric core 11 inside the electric core module 1 in Figure 4 is Figure 3 a partial enlarged view of D in Figure 5 is Figure 1 a structural schematic view of an electric core support 12 in
[0039] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the electric core module 1 comprises at least two cylindrical electric cores 11 and an electric core support 12. Along the axial direction of the cylindrical electric core 11, the cylindrical electric core 11 comprises a cylindrical main body part 111 and a connecting part 112 arranged at at least one end of the main body part 111, and the projection of the connecting part 112 along the axial direction of the main body part 111 is located within the projection of the main body part 111. The electric core support 12 is provided with electric core mounting holes 121, the number of the electric core mounting holes 121 is the same as the number of the cylindrical electric cores 11, and the shape and size of the electric core mounting holes 121 are the same as the shape and size of the connecting part 112. The connecting part 112 is inserted into the electric core mounting hole 121, and the main body parts 111 of the two adjacent cylindrical electric cores 11 are in contact.
[0040] In the embodiment, the cylindrical electric core 11 comprises the cylindrical main body part 111, and the main body parts 111 of the two adjacent cylindrical electric cores 11 are in contact. In this way, part of the cylindrical electric cores 11 in the electric core module 1 are in contact with each other, thereby reducing the gap between the cylindrical electric cores 11, so that the volume of the entire electric core module 1 can be reduced under the condition that the electric capacity is unchanged, thereby improving the energy density of the electric core module 1.
[0041] Then, since the connecting portion 112 is arranged at at least one end of the main body portion 111 of the cylindrical battery cell 11, and the projection of the connecting portion 112 along the axial direction of the main body portion 111 is located within the projection of the main body portion 111. In this way, when a plurality of cylindrical battery cells 11 are arranged in the above arrangement, there is a gap between any two cylindrical battery cells 11 at the same end. Then, since the battery cell support 12 is provided with battery cell mounting holes 121, the number of battery cell mounting holes 121 is the same as the number of cylindrical battery cells 11, the shape and size of the battery cell mounting holes 121 are the same as the shape and size of the connecting portion 112, that is, the inner surface of the battery cell mounting hole 121 and the outer surface of the connecting portion 112 are matched. In this way, the connecting portion 112 of each cylindrical battery cell 11 corresponds to a battery cell mounting hole 121 matched therewith, that is, the connecting portion 112 of each cylindrical battery cell 11 can be inserted into the corresponding battery cell mounting hole 121, and thus the battery cell support 12 can be smoothly sleeved on the arranged plurality of cylindrical battery cells 11.
[0042] Wherein, when the connecting portion 112 of the cylindrical battery cell 11 is arranged in the above manner, the volume of the cylindrical battery cell 11 is reduced compared to the volume without the connecting portion 112, which may result in a slight decrease in the capacity of the battery cell module 1. However, when the connecting portion 112 of the cylindrical battery cell 11 is arranged in the above manner, the volume of the battery cell module 1 is reduced, and the volume of the battery cell module 1 is reduced significantly. In this way, the energy density of the entire battery cell module 1 is significantly increased, which is beneficial to the improvement of the endurance of the battery cell module 1 under the condition that the volume of the battery cell module 1 remains unchanged.
[0043] It should be noted that the above energy density is a commonly used index of battery 100 performance, which represents the ratio of the capacity of the battery cell module 1 to the volume.
[0044] It should be further noted that the shape of the connecting portion 112 can be cylindrical, conical, or other shapes, which are not limited in the embodiments of the present application.
[0045] It should be further noted that the material of the battery cell support 12 is an insulating material, which can be plastic, ceramic, or other materials with the same function, which are not limited in the embodiments of the present application. In addition, the material of the battery cell support 12 must also have good heat conduction ability to ensure that the cylindrical battery cell 11 can be normally cooled.
[0046] Optionally, in some embodiments, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6The two ends of the main body part 111 of the cylindrical battery cell 11 are provided with a connecting part 112 along the axial direction of the cylindrical battery cell 11. In this way, when the plurality of cylindrical battery cells 11 are arranged, the battery cell support 12 can be sleeved on the two ends of the cylindrical battery cell 11, thereby making the shape of the battery cell module 1 more stable. In addition, the battery cell support 12 can protect the cylindrical battery cell 11, so that the cylindrical battery cell 11 inside the battery cell module 1 is not easily damaged, thereby prolonging the service life of the battery cell module 1.
[0047] Optionally, in some embodiments, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 , the cylindrical surfaces of the plurality of cylindrical battery cells 11 abut to form an array, and the two adjacent rows of cylindrical battery cells 11 are misaligned and abut. Any two of the three cylindrical battery cells 11 abut to form a triangular array. Since the triangle has stability, the position of each main body part 111 relative to other main body parts 111 is relatively stable, so that the entire battery cell module 1 is not easily deformed, thereby making the shape of the entire battery cell module 1 more stable, thereby prolonging the service life of the battery cell module 1.
[0048] Optionally, in some embodiments, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 , the cylindrical surfaces of the plurality of cylindrical battery cells 11 abut to form an array, and the two adjacent rows of cylindrical battery cells 11 are misaligned and abut. Any two of the three cylindrical battery cells 11 abut to form a triangular array. Since the triangle has stability, the position of each main body part 111 relative to other main body parts 111 is relatively stable, so that the entire battery cell module 1 is not easily deformed, thereby making the shape of the entire battery cell module 1 more stable, thereby prolonging the service life of the battery cell module 1.
[0049] Optionally, in some embodiments, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , the cross section of the connecting part 112 of the cylindrical battery cell 11 perpendicular to the axial direction is a polygon. In order to adapt to the connecting part 112, the cross section of the battery cell mounting hole 121 of the battery cell support 12 is also set to be a regular polygon same as the cross section of the connecting part 112. Since the connecting part 112 of the regular polygon is accommodated in the battery cell mounting hole 121 of the regular polygon, the connecting part 112 is not easily rotated, so that the structure of the battery cell module 1 is more stable, thereby improving the reliability and safety of the battery cell module 1.
[0050] The polygon can be a regular polygon or a polygon of any shape; this application does not limit this. When it is a regular polygon, the force on the connecting part 112 in the direction perpendicular to its own axis is more uniform, thereby making the structure of the battery cell module 1 more stable.
[0051] It should be noted that the aforementioned regular polygon can be a regular hexagon, a regular pentagon, or other regular polygons, and the embodiments of this application do not limit this.
[0052] This application also discloses a battery 100, see [link to relevant documentation] Figure 7 and Figure 8 The battery 100 includes a casing 2 and any of the aforementioned cell modules 1, with the cell module 1 housed within the casing 2. The casing 2 protects the cell module 1, ensuring it is not damaged when the battery 100 is subjected to external impact, thereby improving the lifespan of the battery 100.
[0053] Furthermore, the battery module 1 inside the battery 100 includes at least two cylindrical cells 11. Since each cylindrical cell 11 includes a cylindrical body portion 111, and the body portions 111 of two adjacent cylindrical cells 11 are in contact, some of the cylindrical cells 11 within the battery module 1 will be in contact with each other. This reduces the gaps between the cylindrical cells 11, allowing the overall volume of the battery module 1 to be reduced while maintaining the same capacity, thereby increasing the energy density of the battery module 1 and thus improving the energy density of the battery 100.
[0054] Next, since a connecting portion 112 is provided at least one end of the main body portion 111 of the cylindrical cell 11, and the projection of the connecting portion 112 along the axial direction of the main body portion 111 is located within the projection of the main body portion 111, when multiple cylindrical cells 11 are arranged in the above arrangement, there is a gap between any two cylindrical cells 11 at the same end. Next, since the cell support 12 is provided with cell mounting holes 121, the number of cell mounting holes 121 is the same as the number of cylindrical cells 11, and the shape and size of the cell mounting holes 121 are the same as the shape and size of the connecting portion 112, that is, the inner surface of the cell mounting hole 121 and the outer surface of the connecting portion 112 are adapted to each other. In this way, each cylindrical cell 11 has a corresponding cell mounting hole 121 for its connecting part 112, that is, each cylindrical cell 11's connecting part 112 can be inserted into the corresponding cell mounting hole 121, thereby enabling the cell bracket 12 to be smoothly fitted onto the multiple arranged cylindrical cells 11. This ensures that the shape of the cell module 1 is more stable, and since the battery 100 includes the cell module 1, this can improve the quality of the battery 100.
[0055] Wherein, when the connecting part 112 of the cylindrical battery cell 11 is arranged in the above manner, the volume of the cylindrical battery cell 11 is reduced compared with the volume when the connecting part 112 is not arranged, which will cause the capacity of the battery cell module 1 to be reduced, but the reduction of the capacity is not obvious. When the connecting part 112 of the cylindrical battery cell 11 is arranged in the above manner, the volume of the battery cell module 1 is reduced, and the reduction of the volume of the battery cell module 1 is obvious. In this way, the energy density of the entire battery cell module 1 is obviously increased, which is beneficial to the improvement of the endurance of the battery cell module 1 under the condition that the volume of the battery cell module 1 is unchanged, and thus is beneficial to the improvement of the endurance of the battery 100 under the condition that the volume of the battery 100 is unchanged.
[0056] In order to ensure that the charge on the battery cell module 1 will not be conducted to the shell 2, an insulating layer 3 is arranged between the battery cell module 1 and the shell 2. In this way, not only can the user be safer when using the battery 100, but also the battery cell module 1 can be prevented from leaking electricity, thereby improving the utilization efficiency of electric energy and the endurance of the battery 100.
[0057] It should be noted that the insulating layer 3 can be a plastic layer, a rubber layer, or a thin layer made of other insulating materials, and the embodiments of the present application do not limit this.
[0058] In order to be able to place the battery cell module 1 loaded into the shell 2 to move relative to the shell 2, an adhesive layer 4 is arranged between the shell 2 and the battery cell module 1. The battery cell module 1 and the shell 2 can be bonded by the adhesive layer 4, so that relative movement between the two can be avoided, and thus the battery cell module 1 is prevented from colliding with the inner wall of the shell 2 inside the shell 2, thereby protecting the battery cell module. The adhesive layer 4 can be an elastic adhesive layer 4, which can buffer the battery cell module 1 and further protect the battery cell module 1. Meanwhile, an epoxy plate is arranged between the battery cell module 1 and the inner wall of the shell 2.
[0059] It should be noted that the elastic adhesive layer 4 can be arranged on part of the surface of the battery cell module 1, or can be arranged on the entire surface of the battery cell module 1, and the embodiments of the present application do not limit this.
[0060] It should be further noted that the elastic adhesive layer 4 can be a foam double-sided tape, an adhesive rubber sheet, or other adhesive layers 4 with the same function, and the embodiments of the present application do not limit this.
[0061] Based on the structure of the battery 100, when producing the battery 100, the cylindrical battery cells 11 are first assembled to form the battery cell module 1, then the insulating layer 3 is wrapped on the surface of the battery cell module 1, then the elastic adhesive layer 4 is pasted on the bottom of the battery cell module 1, then the battery cell module 1 is loaded into the shell 2, and the bottom of the battery cell module 1 is adhered to the shell 2 through the elastic adhesive layer 4 to complete the initial fixation of the battery cell module 1 and the shell 2. The above production process is simple in process and convenient to operate, so that the production efficiency can be improved.
[0062] Optionally, in some embodiments, referring to Figure 7 and Figure 8 , the shell 2 comprises a main shell 21 and a cover plate 22, and the cover plate 22 is fixedly connected to the main shell 21.
[0063] In the embodiments of the present application, the shell 2 is provided as two parts of the main shell 21 and the cover plate 22, which facilitates loading the battery cell module 1 into the main shell 21 and sealing the main shell 21. Specifically, when it is necessary to load the battery cell module 1 into the main shell 21, the cover plate 22 can be opened to load the battery cell module 1, and the sealing of the shell 2 can be achieved by covering the cover plate 22 after the battery cell module 1 is loaded into the main shell 21. In addition, it is also convenient to replace the battery cell module 1 of the battery 100.
[0064] Referring to Figure 7 , Figure 8 and Figure 9 , the connection between the cover plate 22 and the main shell 21 is provided with a glue groove 5, and the glue groove 5 is filled with sealing glue. In this way, the main shell 21 and the cover plate 22 can be fixedly connected in a sealed manner, that is, the entire battery 100 can be sealed, so that the waterproof performance of the battery 100 can be achieved. In addition, the solidified adhesive tape 7 formed by injecting glue into the glue groove 5 is more compact and uniform, so that the waterproof performance of the battery 100 can be further improved.
[0065] At the same time, the operation of achieving the sealing performance of the shell 2 by injecting glue into the glue groove 5 is relatively simple, which is beneficial to improve the production efficiency of the battery 100.
[0066] Optionally, in some embodiments, referring to Figure 7 , Figure 8 and Figure 9 , the glue groove 5 is arranged at the side edge of the cover plate 22, the cover plate 22 is provided with a glue injection hole 6, and the glue injection hole 6 is in communication with the glue groove 5. In this way, the glue injection hole 6 can be used to inject sealing glue into the glue groove 5 multiple times, which further improves the compactness of the solidified adhesive tape 7 compared with the scheme of injecting sealing glue into the glue groove 5 at one time.
[0067] Optionally, in some embodiments, referring to Figure 6 , Figure 7 and Figure 8The adhesive penetration holes 6 include multiple holes, which are evenly arranged along the extension direction of the adhesive groove 5. This allows sealant to be evenly injected into different parts of the adhesive groove 5 through the multiple holes 6. Because the multiple holes 6 are evenly distributed along the extension direction of the adhesive groove 5, the sealant can be evenly injected into all parts of the adhesive groove 5, making the formed cured adhesive tape 7 denser, thus improving the waterproof performance of the battery 100.
[0068] Alternatively, in some embodiments, see Figure 8 , Figure 9 and Figure 10 The cover plate 22 includes an inner plate 221, a connecting plate 222, and an outer plate 223. The area of the largest surface of the connecting plate 222 is smaller than the area of the largest surface of the inner plate 221 and the largest surface of the outer plate 223. The inner plate 221 and the outer plate 223 are respectively connected to opposite sides of the connecting plate 222. The inner plate 221, the outer plate 223, and the connecting plate 222 form an annular adhesive groove 5 around the edge of the cover plate 22. In this way, the cover plate 22 is generally "I" shaped when viewed from the side. The annular cured adhesive tape 7 formed by the adhesive groove 5 can seal all positions at the connection between the cover plate 22 and the main housing 21, thereby improving the waterproof performance of the battery 100.
[0069] When injecting sealant into the glue tank 5 through the glue penetration hole 6, in order to make it easier to observe the degree of sealant filling in the glue tank 5, the area of the outer plate 223 is made smaller than the area of the inner plate 221. This can solve the problem and facilitate the formation of a dense cured tape 7, thereby improving the waterproof capability of the battery 100.
[0070] This application also discloses an electrical device, which includes any of the above-described batteries 100.
[0071] Because the battery 100 has a high energy density, its volume can be reduced while maintaining the same capacity, thus helping to shrink the size of the electrical device. Furthermore, because the battery 100 has good waterproof properties, the electrical device is less affected by rain, thereby extending its lifespan.
[0072] It should be noted that the electrical equipment can be a drone, robot, or electric vehicle, or other electrical equipment; this application embodiment does not limit this.
[0073] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. An electric cell module (1), characterized in that, The application relates to a cylindrical battery cell module (1) comprising: at least two cylindrical battery cells (11), each of which comprises a cylindrical main body (111) and a connecting part (112) arranged at at least one end of the main body (111), wherein the connecting part (112) is projected within the main body (111) along an axial direction of the cylindrical battery cell (11); a battery cell support (12) provided with a battery cell mounting hole (121) having the same shape as the connecting part (112); the connecting part (112) is inserted into the battery cell mounting hole (121), and the main body (111) of each of the two adjacent cylindrical battery cells (11) is in contact.
2. The electric cell module (1) according to claim 1, characterized in that The main body (111) of each of the cylindrical battery cells (11) is provided with the connecting part (112) at both ends along the axial direction of the cylindrical battery cell (11).
3. The electric cell module (1) according to claim 1 or 2, characterized in that The cylindrical surfaces of the plurality of cylindrical battery cells (11) are in abutment to form an array, and the two adjacent rows of cylindrical battery cells (11) are in abutment in a staggered manner, and any group of three cylindrical battery cells (11) in abutment forms a triangular array.
4. The electric cell module (1) according to claim 1 or 2, characterized in that The cylindrical surfaces of the plurality of cylindrical battery cells (11) are in abutment to form an array, and the two adjacent rows of cylindrical battery cells (11) are in abutment in a staggered manner, and any group of three cylindrical battery cells (11) in abutment forms a triangular array.
5. The module (1) of electric cells according to claim 1 or 2, characterized in that, The connecting part (112) of the cylindrical battery cell (11) has a polygonal cross section perpendicular to the axial direction.
6. A battery (100) characterized in that, The application further relates to a battery (100) comprising the battery cell module (1) according to any one of claims 1-5.
7. The battery (100) according to claim 6, characterized in that The battery cell module (1) is accommodated in a shell (2).
8. The battery (100) according to claim 7, characterized in that The shell (2) comprises a main shell (21) and a cover plate (22) fixedly connected to the main shell (21), and a glue groove (5) is arranged at the connection between the cover plate (22) and the main shell (21), and the glue groove (5) is filled with sealing glue.
9. The battery (100) according to claim 8, characterized in that The glue groove (5) is arranged at a side edge of the cover plate (22), and the cover plate (22) is provided with a glue passing hole (6) in communication with the glue groove (5).
10. The battery (100) according to any one of claims 7 to 9, characterized in that The cover plate (22) comprises an inner plate (221), a connecting plate (222) and an outer plate (223), the maximum area of the connecting plate (222) is smaller than the maximum areas of the inner plate (221) and the outer plate (223), the inner plate (221) and the outer plate (223) are respectively connected to opposite sides of the connecting plate (222), and the inner plate (221), the outer plate (223) and the connecting plate (222) form a ring-shaped glue groove (5) at the edge of the cover plate (22).
11. An electrical device, characterized by The application further relates to a battery (100) comprising the battery cell module (1) according to any one of claims 6-10.