Battery cell connection structure, battery cell module and energy storage all-in-one machine
By introducing a combination of structural adhesive and double-sided adhesive layers into the cell connection structure, along with buffers and separators, the problems of long cell curing time and high cost are solved, enabling rapid fixation and efficient production, and ensuring the reliability and testing accuracy of cell connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI MOOREWATT ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-03-05
- Publication Date
- 2026-04-21
AI Technical Summary
The existing technology of fixing battery cells with structural adhesive has problems such as long curing time, high space cost, high equipment cost, high energy consumption, and significant impact on the accuracy of subsequent test results.
The system employs a connecting layer structure, including a structural adhesive layer and a double-sided adhesive layer. The double-sided adhesive provides short-term fixation, eliminating the need for high-temperature baking. The structural adhesive cures naturally, and combined with buffer components and separators, it ensures the reliability and stability of the cell connection.
It enables rapid cell fixing, reduces production costs, improves production efficiency, ensures accurate test results, extends cell lifespan, and enhances the safety and stability of cell modules.
Smart Images
Figure CN224153486U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of energy storage batteries, and in particular to a cell connection structure, a cell module, and an integrated energy storage device. Background Technology
[0002] In current battery manufacturing technologies, structural adhesives are typically used to bond battery cells together. While this method can achieve a stable connection between cells, it still has shortcomings in practical applications.
[0003] First, structural adhesives have a long curing time. To accelerate the curing process, tunnel ovens are usually built on the production line to shorten the curing time through high-temperature baking, which increases the time, space and equipment costs in the battery cell production process.
[0004] Secondly, even after high-temperature baking, the accuracy of capacity test results will be affected to some extent when the structural adhesive has cured. To ensure the accuracy of the test results, the baked cells usually need to be left to stand at room temperature for a period of time, which further increases the time cost.
[0005] In summary, existing methods for fixing battery cells using structural adhesives suffer from problems such as long curing times, high space and equipment costs, high energy consumption, and impact on the accuracy of subsequent test results. Therefore, there is an urgent need for a new battery cell fixing structure that can significantly shorten curing time, reduce production costs, and improve the accuracy of subsequent tests while ensuring stable cell connections. Utility Model Content
[0006] Therefore, it is necessary to address the issue of high time, space, and equipment costs in battery cell manufacturing caused by fixing cells with structural adhesive, and to provide a battery cell connection structure, battery cell module, and integrated energy storage device.
[0007] In a first aspect, this application provides a battery cell connection structure, which adopts the following technical solution:
[0008] A battery cell connection structure includes a battery cell and a connecting layer. The battery cell has at least one adhesive surface. The connecting layer is attached to the adhesive surface to connect the battery cell to an end plate or another battery cell. The connecting layer includes a structural adhesive layer and a double-sided adhesive layer spaced apart on the adhesive surface.
[0009] In one embodiment, two double-sided adhesive layers are provided and are spaced apart along the length or width of the adhesive surface, with the structural adhesive layer located between the two double-sided adhesive layers.
[0010] In one embodiment, multiple structural adhesive layers and double-sided adhesive layers are provided, and the structural adhesive layers and double-sided adhesive layers are arranged at intervals along the length or width direction of the bonding surface.
[0011] In one embodiment, two double-sided adhesive layers are bonded to opposite ends of the adhesive surface in the length or width direction of the adhesive surface.
[0012] In one embodiment, the adhesive surface includes an outer edge region and a middle region, the outer edge region extending along the periphery of the adhesive surface, and the middle region located within the area enclosed by the outer edge region; wherein the double-sided adhesive layer is disposed within the outer edge region, and the structural adhesive layer is disposed within the middle region.
[0013] In one embodiment, the double-sided adhesive layer is disposed in the outer edge region and continuously distributed along the periphery of the adhesive surface, and the structural adhesive layer is surrounded in the middle region.
[0014] In one embodiment, multiple double-sided adhesive layers are provided, and all of the double-sided adhesive layers are spaced apart along the periphery of the adhesive surface, with the structural adhesive layer surrounding the central area.
[0015] In one embodiment, the adhesive surface is coated with a structural adhesive in a “wavy” or “serrated” shape, which spreads on the adhesive surface under pressure to form the structural adhesive layer.
[0016] Secondly, this application provides a battery cell module, which adopts the following technical solution:
[0017] A battery cell module includes multiple battery cell units and two end plates. Each battery cell unit includes the aforementioned battery cell connection structure. Two adjacent battery cell units are connected through the connection layer. Each battery cell unit is disposed between the two end plates, and the first and last battery cell units are connected to the end plates via the connection layer.
[0018] In one embodiment, the cell unit further includes a first buffer, which is located between two adjacent cell units and connected to the cell unit via the connecting layer. The first buffer is capable of extending and retracting along the connection direction of the cell unit.
[0019] In one embodiment, the cell module further includes a separator disposed between two adjacent cell units and connected to the connection layer, the separator being configured to be made of a heat-insulating and flame-retardant material.
[0020] In one embodiment, the cell module further includes two second buffers, each with a connecting layer on both sides. The second buffers are connected between the end plate and the cell unit via the connecting layers, and the second buffers are capable of extending and retracting along the connection direction of the cell unit.
[0021] In one embodiment, the first cushioning element is one of foam, silicone, rubber, polyurethane foam, gel, aerogel, and fiber-reinforced composite material; the second cushioning element is one of foam, silicone, rubber, polyurethane foam, gel, aerogel, and fiber-reinforced composite material.
[0022] Thirdly, this application provides an integrated energy storage device, which adopts the following technical solution:
[0023] An integrated energy storage device includes at least one of the aforementioned battery cell modules.
[0024] The aforementioned cell connection structure achieves reliable connections between individual cells and between individual cells and the end plate by using a connecting layer to connect the bonding surfaces of adjacent individual cells or to bond individual cells to the end plate. The connecting layer includes a structural adhesive layer and a double-sided adhesive layer. During bonding, the double-sided adhesive is used for short-term fixation to eliminate the need for high-temperature baking, while the structural adhesive ensures long-term reliability. This improves production efficiency and reduces production costs while maintaining structural stability. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the cell connection structure in one embodiment of this application.
[0026] Figure 2 This is a schematic diagram of the assembly of the battery cell module in one embodiment of this application.
[0027] Figure 3 This is a schematic diagram of the bonding surface and connecting layer of a single battery cell in one embodiment of this application.
[0028] Figure 4 This is a schematic diagram of the bonding surface and connecting layer of a single cell in another embodiment of this application.
[0029] Figure 5 This is a schematic diagram of the bonding surface and connecting layer of a single cell in another embodiment of this application.
[0030] Figure 6 This is a schematic diagram of the bonding surface and connecting layer of a single cell in another embodiment of this application.
[0031] Attached image annotations:
[0032] 1. Battery cell unit; 11. Battery cell unit; 111. Adhesive surface; 12. Connecting layer; 121. Structural adhesive layer; 122. Double-sided adhesive layer; 13. First buffer component; 2. End plate; 3. Separator; 4. Second buffer component; X, Connection direction; Y, Width direction; Z, Height direction. Detailed Implementation
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] In existing technologies, structural adhesives are typically used to bond battery cells together. While this method provides a degree of mechanical stability, it presents numerous problems in practical applications.
[0040] First, structural adhesives have a long curing time, typically requiring several hours or even longer to fully cure. To meet production efficiency requirements, companies often need to build dedicated tunnel ovens on their production lines to bake the battery cells, thus accelerating the curing process of the structural adhesives. However, the construction of tunnel ovens not only requires a significant amount of production space but also increases the cost of equipment purchase and maintenance, leading to a significant increase in overall production costs.
[0041] Secondly, the curing process of structural adhesives requires precise control over temperature and time. Baking in a tunnel oven exposes the battery cells to high temperatures for extended periods, which not only consumes significant energy but can also lead to instability in cell performance. Particularly for temperature-sensitive cell materials, high-temperature baking can negatively impact their internal structure and chemical properties, thereby reducing cell performance and lifespan.
[0042] Furthermore, the accuracy of capacity testing results is significantly affected after high-temperature baking. Irreversible chemical changes may occur in the cells at high temperatures, potentially causing discrepancies between the actual and expected capacity. To ensure accurate test results, cells typically require prolonged cooling at room temperature after baking to allow them to return to their normal state. This cooling process not only further extends the production cycle but also increases time and storage costs.
[0043] In summary, existing technologies using structural adhesives to fix battery cells suffer from numerous problems, including long curing times, high space and equipment costs, high energy consumption, and adverse effects on battery cell performance and the accuracy of subsequent testing. Therefore, developing a novel fixing technology that can quickly fix battery cells, reduce production costs, and not compromise battery cell performance is of paramount importance.
[0044] The following is in conjunction with the appendix Figure 1-6 The embodiments of this application will be described in further detail.
[0045] See Figure 1 , Figure 1 A schematic diagram of a cell connection structure in one embodiment of this application is shown. One embodiment of this application provides a cell connection structure, including a cell unit 11 and a connecting layer 12. The connecting layer 12 is used to bond the cell unit 11 to an adjacent cell unit 11 or an end plate 2, so as to realize the assembly and fixation of the cell unit 11 or the cell unit 11 between the end plates 2.
[0046] by Figure 1 For example, for ease of explanation and labeling, the connection direction of the battery cell 11, i.e. the length direction of the battery cell 11, is defined as the X direction, the width direction of the battery cell 11 is defined as the Y direction, and the height direction of the battery cell 11 is defined as the Z direction.
[0047] In this embodiment of the application, the battery cell 11 is constructed into a square structure, and each battery cell 11 has at least one adhesive surface 111 on its surface. The aforementioned connecting layer 12 is attached to the adhesive surface 111 of the battery cell 11 to connect the battery cell 11 to an adjacent battery cell 11 or end plate 2.
[0048] In some other embodiments, depending on actual usage requirements, the battery cell 11 may also be constructed as a polygonal structure or an irregular structure (such as an L-shape, T-shape, or U-shape). Similarly, the surface of the battery cell 11 has at least one adhesive surface 111 for bonding the connecting layer 12.
[0049] Continue reading Figure 1As shown, specifically, the connecting layer 12 includes a structural adhesive layer 121 and a double-sided adhesive layer 122 spaced apart on the adhesive surface 111. The double-sided adhesive layer 122 is used for short-term fixation of the battery cell 11, while the structural adhesive layer 121 is used for long-term fixation of the battery cell 11. Together, they achieve both pre-fixation and long-term fixation of the battery cell 11, thereby ensuring the long-term reliability of the battery cell.
[0050] In actual production, the battery cell unit 1 is first pre-fixed using the double-sided adhesive layer 122, enabling rapid fixation of the individual battery cell 11 to meet production efficiency requirements. After the double-sided adhesive layer 122 has achieved short-term fixation of the battery cell unit 1, the structural adhesive layer 121 has sufficient time for natural curing. Therefore, there is no need to bake the battery cell to accelerate curing, thus eliminating the high-temperature baking process in traditional processing. This improves production efficiency while saving equipment investment costs.
[0051] Combination Figure 2 As shown, Figure 2 A schematic diagram of the assembly of a cell module according to one embodiment of this application is shown. In some embodiments, this application also provides a cell module, which includes a plurality of cell units 1 and two end plates 2, wherein all the cell units 1 are disposed between the two end plates 2.
[0052] Each cell unit 1 includes at least two cell connection structures as shown in the above embodiment. Two adjacent cell units 11 are connected by a connection layer 12. The two cell units 11 at the beginning and end are also connected to the end plate 2 by means of the connection layer 12, thereby ensuring the overall assembly stability of the cell module.
[0053] Continue reading Figure 2 As shown, in some embodiments, the cell unit 1 further includes a first buffer 13, which is fixed between two adjacent cell units 11 by means of a connecting layer 12. In other embodiments, the cell unit 1 further includes two second buffers 4, each with a connecting layer 12 on both sides, and the second buffers 4 are connected between the end plate 2 and the cell unit 1 by means of the connecting layer 12.
[0054] In the above embodiments, both the first buffer 13 and the second buffer 4 are configured to expand and contract along the connection direction X of the battery cell 11 to buffer the mechanical vibration or impact that the battery cell 11 may experience during use, reduce mechanical stress damage to the battery cell module, and extend the service life of the battery cell module. In addition, the battery cell 11 may expand during charging and discharging, and the first buffer 13 and the second buffer 4 can provide a certain amount of elastic support to prevent structural damage caused by excessive expansion of the battery cell 11.
[0055] In some embodiments, the first buffer 13 and the second buffer 4 adopt the same material and structural design, that is, the first buffer 13 and the second buffer 4 are made of the same material and are both constructed as sheets and bonded to the battery cell 11 through the connecting layer 12 to achieve flexible buffering of the battery cell 11.
[0056] In some other embodiments, the first buffer 13 and the second buffer 4 can be constructed with the same structure but made of different materials, as long as flexible buffering of the battery cell 11 can be achieved. This application does not limit this.
[0057] Specifically, the first buffer 13 and the second buffer 4 can be at least one of foam, silicone, rubber, polyurethane foam, gel, aerogel, and fiber-reinforced composite materials, and this application embodiment does not limit this.
[0058] Combination Figure 1 and Figure 2 As shown, in some embodiments, the battery module further includes a separator 3, which is disposed between two adjacent battery cells 1 and connected to the connecting layer 12. In this embodiment, the separator 3 is constructed as a sheet structure and is made of heat-insulating and flame-retardant material. By setting the separator 3, thermal isolation between two adjacent battery cells 1 can be achieved, thereby effectively mitigating the thermal runaway process, suppressing heat propagation, and thus improving the overall safety of the battery module.
[0059] Furthermore, in some other embodiments, the separator 3 is configured to extend and retract along the connection direction X of the battery cell 11, thereby working in conjunction with the first buffer 13 and the second buffer 4 to provide flexible buffering for the battery cell 11, thereby extending the service life of the battery cell module. In this embodiment, the separator 3 may specifically be heat-insulating cotton that combines flexible buffering and heat insulation and flame retardant functions.
[0060] In some embodiments, the connecting layer 12 is constructed in different structural forms according to the assembly strength requirements of different battery cell modules, so as to balance the production cost and production quality requirements of the battery cell module. In this application, for ease of explanation, the illustration will take the case where the connecting layer 12 is attached to the adhesive surface 111 of the battery cell 11 as an example for assembly. It can be understood that the same layout can be used when the connecting layer 12 is attached to the surface of the first buffer 13 or the surface of the second buffer 4, which will not be described in detail in the embodiments of this application.
[0061] See Figure 3 As shown, Figure 3A schematic diagram of the adhesive surface and connecting layer of a single battery cell in one embodiment of this application is shown. In some embodiments, two double-sided adhesive layers 122 are provided, along the height direction Z of the single battery cell 11. The two double-sided adhesive layers 122 are respectively provided at the top and bottom ends of the adhesive surface 111 on the single battery cell 11 to facilitate the bonding operation. A structural adhesive layer 121 is located between the two double-sided adhesive layers 122 to cooperate with the double-sided adhesive layers 122 to achieve long-term fixation of the single battery cell 11 and ensure the assembly stability of the battery cell module.
[0062] See Figure 4 As shown, Figure 4 A schematic diagram of the adhesive surface and connecting layer of a single cell in another embodiment of this application is shown. In some other embodiments, multiple structural adhesive layers 121 and double-sided adhesive layers 122 are provided, spaced apart along the height direction Z or width direction Y of the single cell 11, thereby achieving multi-point pre-connection between the single cell 11 or the end plate 2 during assembly, to ensure the assembly stability of the cell module during the curing of the structural adhesive layer 121.
[0063] Furthermore, in some embodiments, two double-sided adhesive layers 122 are respectively provided on the two opposite ends of the bonding surface 111 in the height direction Z or width direction Y of the battery cell 11, thereby avoiding the situation where the structural adhesive overflows due to compression during the battery cell assembly process and ensuring the assembly effect.
[0064] See Figure 5 and Figure 6 As shown, Figure 5 A schematic diagram of the bonding surface and connecting layer of a single cell in another embodiment of this application is shown. Figure 6 A schematic diagram of the bonding surface and connecting layer of a single cell in another embodiment of this application is shown.
[0065] Specifically, the adhesive surface 111 includes an outer edge region for bonding the double-sided adhesive layer 122 and a middle region for bonding the structural adhesive layer 121. The outer edge region extends along the periphery of the adhesive surface 111, while the middle region is located within the area enclosed by the outer edge region. During the assembly of the battery cell module, the double-sided adhesive layer 122 forms a ring-shaped "barrier" along the periphery of the adhesive surface 111 to limit the outward overflow of the structural adhesive, thereby further preventing the structural adhesive from overflowing after being squeezed.
[0066] For details, please refer to [link / reference]. Figure 5 As shown, in some embodiments, the double-sided adhesive layer 122 is disposed in the outer edge region and is continuously distributed along the periphery of the adhesive surface 111, and the structural adhesive layer 121 is disposed in the region enclosed by the double-sided adhesive layer 122 to effectively prevent the structural adhesive from spreading outward.
[0067] For details, please refer to [link / reference]. Figure 6 As shown, in some other embodiments, the double-sided adhesive layer 122 is provided in multiple segments, with all the double-sided adhesive layers 122 evenly distributed in the outer edge region and spaced apart circumferentially along the outer edge region. The structural adhesive layer 121 is surrounded in the middle region to limit the outward overflow of the structural adhesive. This structural design also has a certain effect of saving double-sided adhesive, which helps to reduce production costs.
[0068] Specifically, during the assembly of the battery cell module, in order to facilitate the application of structural adhesive and ensure the uniformity of the structural adhesive application, the structural adhesive is usually squeezed in an "S" shape onto the surface of the first buffer 13. After the battery cell 11 is assembled, it will be squeezed against each other along the assembly direction to flatten the structural adhesive and form a flat and uniform structural adhesive layer 121, thereby ensuring the overall structural strength of the battery cell module after assembly.
[0069] It is understood that in some other embodiments, depending on the application requirements, the structural adhesive may also be extruded in a “wavy” or “serrated” shape (not shown) onto the surface of the first buffer 13, as long as the extruded structural adhesive layer 121 can uniformly cover the bonding surface 111 and meet the connection strength requirements of the battery cell module. This application does not impose any restrictions on this.
[0070] In some embodiments, this application also provides an integrated energy storage device (not shown), which includes at least one battery cell module as shown in any of the above embodiments.
[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0072] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. An electrode connection structure characterized by comprising: The cell connection structure includes: A single battery cell has at least one adhesive surface; and A connecting layer is attached to the adhesive surface for connecting the battery cell to an end plate or another battery cell; the connecting layer includes a structural adhesive layer and a double-sided adhesive layer spaced apart on the adhesive surface.
2. The cell connection structure according to claim 1, characterized by The double-sided adhesive layer is provided in two layers and is arranged at intervals along the length or width of the adhesive surface, with the structural adhesive layer located between the two double-sided adhesive layers.
3. The cell connection structure according to claim 1, characterized by Multiple structural adhesive layers and double-sided adhesive layers are provided, and they are arranged at intervals along the length or width of the bonding surface.
4. The cell connection structure according to claim 3, characterized by In the length or width direction of the adhesive surface, two double-sided adhesive layers are bonded to opposite ends of the adhesive surface.
5. The cell connection structure according to claim 1, characterized by The adhesive surface includes an outer edge region and a middle region. The outer edge region extends along the periphery of the adhesive surface, and the middle region is located within the area enclosed by the outer edge region. The double-sided adhesive layer is disposed in the outer edge region, and the structural adhesive layer is disposed in the middle region.
6. The cell connection structure according to claim 5, wherein The double-sided adhesive layer is disposed in the outer edge region and is continuously distributed along the periphery of the adhesive surface, while the structural adhesive layer is surrounded in the middle region.
7. The cell connection structure according to claim 5, wherein Multiple double-sided adhesive layers are provided, and all of the double-sided adhesive layers are arranged at intervals along the periphery of the adhesive surface, with the structural adhesive layer surrounding the central area.
8. The cell connection structure according to any one of claims 1-7, characterized in that, The bonding surface is coated with a structural adhesive in a "wavy" or "serrated" shape, which is spread on the bonding surface under pressure to form the structural adhesive layer.
9. An electrochemical cell module, characterized by, The battery cell module includes: Multiple battery cell units, each of the battery cell units comprising at least two cell connection structures as described in any one of claims 1-8, wherein two adjacent battery cell units are connected through the connection layer; and Two end plates are provided, and the battery cell units are disposed between the two end plates. The first and last two battery cell units are connected to the end plates by means of the connecting layer.
10. The battery cell module of claim 9, wherein, The cell unit further includes a first buffer, which is located between two adjacent cell units and connected to the cell unit via the connecting layer. The first buffer is capable of extending and retracting along the connection direction of the cell unit.
11. The battery cell module of claim 9, wherein, The battery cell module also includes a separator, which is disposed between two adjacent battery cell units and connected to the connection layer. The separator is configured to be made of heat-insulating and flame-retardant materials.
12. The battery cell module of claim 10, wherein, The battery cell module also includes two second buffers, each with a connecting layer on both sides. The second buffers are connected between the end plate and the battery cell unit via the connecting layers, and the second buffers can extend and retract along the connection direction of the battery cell unit.
13. The battery cell module of claim 12, wherein, The first cushioning component is one of foam, silicone, rubber, polyurethane foam, gel, aerogel, and fiber-reinforced composite materials; the second cushioning component is one of foam, silicone, rubber, polyurethane foam, gel, aerogel, and fiber-reinforced composite materials.
14. An energy storage all-in-one machine, characterized in that, It includes at least one battery cell module as described in any one of claims 9-13.