Battery module assembly of battery device, battery device and vehicle

Abstract

The utility model discloses a battery module assembly of a battery device, the battery device and a vehicle, and relates to the technical field of batteries, and the battery module assembly comprises a heat exchange structure which is provided with a containing groove; the battery module comprises a plurality of single batteries, the single batteries are sequentially arranged in the first direction, at least part of each single battery is installed in the containing groove, and the single batteries are all fixed in the containing groove; the glue blocking part is arranged in the accommodating groove, the glue blocking part is arranged between at least one battery monomer positioned at the end part and the groove bottom wall of the accommodating groove, and the first direction is perpendicular to the depth direction of the accommodating groove. The glue blocking part is arranged between the battery monomer at the end part and the groove bottom wall of the accommodating groove, so that the glue can be prevented from overflowing, the heat transfer path of the battery monomer at the end part is limited, the heat transfer area of the battery monomer at the end part is reduced, and the temperature difference between the battery monomer at the end part and the battery monomer at the middle part can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery module assembly, a battery device, and a vehicle. Background Technology

[0002] In related technologies, the temperature difference between the end cells and the middle cells of existing battery module components is large. Furthermore, after the thermally conductive structural adhesive is applied and pressed, the adhesive easily overflows between the module end plate mounting beam and the end cells, further increasing the heat transfer path of the end cells and thus leading to an increase in the temperature difference between the end cells and the middle cells. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a battery module assembly for a battery device that can prevent adhesive overflow, thereby limiting the heat transfer path of the end battery cells, reducing the heat transfer area of ​​the end battery cells, and thus effectively reducing the temperature difference between the end battery cells and the middle battery cells.

[0004] This utility model further proposes a battery device having the above-mentioned battery module assembly.

[0005] This utility model further proposes a vehicle having the above-mentioned battery device.

[0006] A battery module assembly of a battery device according to an embodiment of the present invention includes: a heat exchange structure having a receiving groove; a battery module including a plurality of battery cells arranged sequentially along a first direction, at least a portion of each battery cell being installed in the receiving groove, and all the battery cells being fixed in the receiving groove; and a baffle portion disposed in the receiving groove, wherein at least one battery cell located at an end is provided with a baffle portion between it and the bottom wall of the receiving groove, and the first direction is perpendicular to the depth direction of the receiving groove.

[0007] According to the battery module assembly of the battery device in this embodiment of the present invention, by providing a baffle between the end battery cell and the bottom wall of the receiving groove, it can prevent glue from overflowing, thereby limiting the heat transfer path of the end battery cell, reducing the heat transfer area of ​​the end battery cell, and thus effectively reducing the temperature difference between the end battery cell and the middle battery cell.

[0008] According to some embodiments of the present invention, the adhesive-blocking portion abuts against the corresponding battery cell and the bottom wall of the groove; and / or the adhesive-blocking portion extends along a second direction, and the first direction, the second direction and the depth direction of the receiving groove are perpendicular to each other.

[0009] According to some embodiments of the present invention, along the depth direction of the receiving groove, the end battery cell has a battery cell end face facing the bottom wall of the groove, and the adhesive-blocking part is located between the battery cell end face and the bottom wall of the groove.

[0010] According to some embodiments of the present invention, the area of ​​the end face of the battery cell is S1, and the area of ​​the overlapping region of the orthographic projection of the adhesive-blocking part and the orthographic projection of the corresponding end face of the battery cell along the depth direction of the receiving groove is S2, satisfying the relationship: 0.2≤S2 / S1≤0.8.

[0011] According to some embodiments of the present invention, the adhesive-blocking part is constructed as a foam component.

[0012] According to some embodiments of the present invention, the battery module assembly further includes: a limiting part, the limiting part being disposed in the receiving groove, the limiting part being disposed between the battery module and the bottom wall of the groove, the limiting part extending along a first direction, and the limiting part being located inside the adhesive-blocking part along the first direction.

[0013] According to some embodiments of the present invention, there are multiple limiting parts, which are arranged sequentially at intervals along the second direction, and the first direction, the second direction and the depth direction of the receiving groove are perpendicular to each other.

[0014] According to some embodiments of the present invention, along the depth direction of the receiving groove, the thickness dimension of the adhesive blocking part is D1, and the thickness dimension of the limiting part is D2, satisfying the relationship: 1.2D2≤D1≤4D2.

[0015] The battery device according to an embodiment of the present invention includes the battery module assembly of the battery device described in the above embodiment.

[0016] The vehicle according to an embodiment of the present invention includes the battery device described in the above embodiment.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of the battery module assembly according to an embodiment of the present invention;

[0020] Figure 2 This is an exploded view of the battery module and heat exchange structure according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the heat exchange structure according to an embodiment of the present invention;

[0022] Figure 4 This is a partial cross-sectional view of the battery module assembly according to an embodiment of the present utility model.

[0023] Figure label:

[0024] Battery module assembly 100;

[0025] Heat exchange structure 10; receiving tank 11; tank bottom wall 111; side beam 112; module end plate mounting beam 113;

[0026] Battery module 20; battery cell 21; battery cell end face 211;

[0027] 30mm adhesive barrier;

[0028] Limiting part 40. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] The following is for reference. Figures 1-4 This invention describes a battery module assembly 100, a battery device, and a vehicle according to embodiments of the present invention.

[0031] like Figures 1-4 As shown, the battery module assembly 100 of the battery device according to an embodiment of the present invention includes: a heat exchange structure 10, the heat exchange structure 10 having a receiving groove 11; a battery module 20, the battery module 20 including a plurality of battery cells 21, the plurality of battery cells 21 being arranged sequentially along a first direction, at least a portion of each battery cell 21 being installed in the receiving groove 11, and the plurality of battery cells 21 being fixed in the receiving groove 11; and a baffle portion 30, the baffle portion 30 being disposed in the receiving groove 11, the baffle portion 30 being provided between at least one battery cell 21 located at the end and the bottom wall 111 of the receiving groove 11, the first direction being perpendicular to the depth direction of the receiving groove 11.

[0032] Among them, such as Figure 1 As shown, the first direction is Figure 1 The X direction in the middle, the second direction is Figure 1 In the Y direction, the depth direction of the receiving groove 11 is... Figure 1The Z-direction, the first direction, the second direction, and the depth direction of the receiving groove 11 are perpendicular to each other. The heat exchange structure 10 has a receiving groove 11 for mounting the battery module 20, providing a good heat dissipation environment for the battery module 20. The battery module 20 includes multiple battery cells 21. In some embodiments of this application, the battery module 20 may include two, three, four, or other numbers of battery cells 21, but this utility model is not limited to this. The battery module 20 may also include other numbers of battery cells 21, as long as the battery module 20 includes multiple battery cells 21.

[0033] It can be noted that the heat exchange structure 10 also includes two side beams 112 and two module end plate mounting beams 113. The side beams 112 extend along a first direction and are spaced apart along a second direction. The module end plate mounting beams 113 extend along the second direction and are spaced apart along the first direction. The two side beams 112 and the two module end plate mounting beams 113 together define a receiving groove 11 for mounting the battery module 20. A thermally conductive structural adhesive is provided between the bottom wall of the battery cell 21 and the bottom wall of the receiving groove 11 to effectively transfer the heat generated by the battery cell 21 during operation to the bottom wall of the receiving groove 11, thereby achieving a balanced heat distribution and rapid dissipation, avoiding overheating and excessive temperature gradients, and improving the performance of the battery module 20. The thermally conductive structural adhesive also has structural bonding capabilities, which can firmly adhere the battery cell 21 to the bottom wall of the receiving groove 11, ensuring the structural stability and reliability of the battery module 20.

[0034] Multiple battery cells 21 are arranged sequentially along a first direction, ensuring the relative positional stability between the battery cells 21. This prevents displacement or damage to the battery cells 21 due to vibration or impact during charging and discharging of the battery module 20. It also facilitates the design of thermal management systems, such as water-cooling components, to achieve effective heat dissipation for the battery cells 21. At least a portion of each battery cell 21 is installed within the receiving groove 11, maximizing the use of space within the battery device and reducing space waste. In some embodiments of this application, each battery cell 21 may have one-fifth, one-sixth, or other proportions installed within the receiving groove 11. However, this invention is not limited to this; each battery cell 21 may also have other proportions installed within the receiving groove 11, as long as at least a portion of each battery cell 21 is installed within the receiving groove 11. The multiple battery cells 21 are all fixed within the receiving groove 11, effectively preventing movement or shaking of the battery cells 21 within the battery device, reducing the risk of damage to the battery device due to vibration or impact, and improving the overall structural stability of the battery device.

[0035] The adhesive blocking part 30 can be constructed as a foam component. The foam component has a good adhesive blocking effect and also has certain buffering, heat preservation and insulation functions. The adhesive blocking part 30 is located in the receiving groove 11, which can not only prevent adhesive overflow, but also limit the heat transfer path of the end battery cell 21, thereby reducing the heat transfer area of ​​the end battery cell 21 through the thermally conductive structural adhesive. This can effectively reduce the temperature difference between the end battery cell 21 and the middle battery cell 21, and also reduce the relative movement between the battery cells 21, thereby reducing the risk of damage to the battery module 20 caused by vibration or impact.

[0036] Furthermore, the adhesive baffle 30 is constructed as a foam component. Foam components have good adaptability and plasticity, and can be customized according to the specific shape and size of the battery cell 21 and the receiving groove 11 to ensure the best sealing and cushioning effect. Moreover, the material cost is low, thereby reducing the overall cost of the battery module 20.

[0037] At least one end-positioned battery cell 21 is provided with a baffle 30 between it and the bottom wall 111 of the receiving groove 11. In some embodiments of this application, there may be one, two, three, or other equal numbers of baffles 30 between the end-positioned battery cell 21 and the bottom wall 111 of the receiving groove 11. As long as at least one end-positioned battery cell 21 is provided with a baffle 30 between it and the bottom wall 111 of the receiving groove 11, it is sufficient. This arrangement can separate the thermally conductive structural adhesive on the bottom wall of the end-positioned battery cell 21 from the module end plate mounting beam 113, thereby preventing the thermally conductive structural adhesive from overflowing and adhering to the module end plate mounting beam 113 during the curing process. This keeps the interior of the battery module 20 clean and orderly. By separating the thermally conductive structural adhesive, the baffle 30 can also limit the heat transfer path of the end-positioned battery cell 21, thereby reducing the heat transfer area of ​​the end-positioned battery cell 21 through the thermally conductive structural adhesive, and thus effectively reducing the temperature difference between the end-positioned battery cell 21 and the middle battery cell 21.

[0038] According to the battery module assembly 100 of the battery device of the present utility model, by providing a baffle 30 between the end battery cell 21 and the bottom wall 111 of the receiving groove 11, it can play the role of preventing glue overflow, thereby limiting the heat transfer path of the end battery cell 21, thereby reducing the heat transfer area of ​​the end battery cell 21, and thus effectively reducing the temperature difference between the end battery cell 21 and the middle battery cell 21.

[0039] According to some embodiments of the present invention, the adhesive-blocking portion 30 abuts against the corresponding battery cell 21 and the bottom wall 111 of the groove; and / or the adhesive-blocking portion 30 extends along a second direction, and the first direction, the second direction and the depth direction of the receiving groove 11 are perpendicular to each other.

[0040] In one embodiment of this application, the adhesive-blocking part 30 can abut against the corresponding battery cell 21 and the bottom wall 111 of the groove, which can effectively prevent the thermally conductive structural adhesive from overflowing during the curing process, thereby keeping the inside of the battery module 20 clean. At the same time, this tight abutment can also prevent external moisture, dust and other impurities from entering the inside of the battery module 20 and damaging the battery cell 21, which can significantly enhance the sealing performance of the battery module 20.

[0041] Furthermore, the adhesive-blocking part 30 can also serve as a support structure between the battery cell 21 and the bottom wall 111 of the tank. When it is in close contact with both, it can significantly enhance the structural stability of the battery module 20, preventing the battery cell 21 from shifting or loosening during vibration or impact, thereby ensuring the overall stability and reliability of the battery module 20. The close contact between the adhesive-blocking part 30 and the battery cell 21 and the bottom wall 111 of the tank can also simplify the manufacturing process of the battery module 20. During the manufacturing process, operators can more easily position and attach the adhesive-blocking part 30 to the designated location without additional fixing or adjustment steps, which helps to improve production efficiency and reduce costs.

[0042] As another embodiment of this application, such as Figure 3 As shown, the adhesive-blocking portion 30 extends along a second direction, and the first direction, the second direction, and the depth direction of the receiving groove 11 are perpendicular to each other. The adhesive-blocking portion 30 extending along the second direction further ensures that it blocks the thermally conductive structural adhesive at the end of the battery cell 21, limiting the heat transfer path of the end battery cell 21, thereby reducing the heat transfer area of ​​the end battery cell 21 through the thermally conductive structural adhesive, and thus effectively reducing the temperature difference between the end battery cell 21 and the middle battery cell 21.

[0043] In another embodiment of this application, the adhesive-blocking portion 30 can abut against the corresponding battery cell 21 and the bottom wall 111 of the groove, and the adhesive-blocking portion 30 extends along the second direction, with the first direction, the second direction, and the depth direction of the receiving groove 11 being perpendicular to each other. This not only enhances the structural stability of the battery module 20, preventing the battery cell 21 from shifting or loosening during vibration or impact, thereby ensuring the overall stability and reliability of the battery module 20, improving production efficiency and reducing costs, but also limits the heat transfer path of the end battery cell 21, thereby reducing the heat transfer area of ​​the end battery cell 21 through the thermally conductive structural adhesive, and thus effectively reducing the temperature difference between the end battery cell 21 and the middle battery cell 21.

[0044] According to some embodiments of the present invention, such as Figure 4As shown, along the depth direction of the receiving groove 11, the end battery cell 21 has a battery cell end face 211 facing the bottom wall 111 of the groove. The adhesive-blocking part 30 is located between the battery cell end face 211 and the bottom wall 111 of the groove, forming a tight sealing layer. This can effectively prevent the thermally conductive structural adhesive from leaking out from the gap between the battery cell end face 211 and the bottom wall 111 of the groove, reducing the heat transfer path of the end battery cell 21, thereby reducing the heat dissipation of the end battery cell 21, reducing the temperature difference between the end battery cell 21 and the middle battery cell 21, helping to maintain the uniformity of the internal temperature of the battery module 20, avoiding local overheating or excessive temperature gradient, thereby improving the performance and safety of the battery module 20.

[0045] The adhesive baffle 30 is located between the end face 211 of the battery cell and the bottom wall 111 of the groove, and can also form an additional support structure, which helps to enhance the stability of the battery cell 21 in the receiving groove 11 and prevent it from shifting or loosening during vibration or impact.

[0046] According to some embodiments of the present invention, the area of ​​the end face 211 of the battery cell is S1, and the area of ​​the overlapping region of the orthographic projection of the adhesive-blocking part 30 and the orthographic projection of the corresponding end face 211 of the battery cell along the depth direction of the receiving groove 11 is S2, satisfying the relationship: 0.2≤S2 / S1≤0.8.

[0047] The ratio of the overlapping area S2 of the orthographic projection of the adhesive-blocking part 30 and the orthographic projection of the corresponding battery cell end face 211 to the area S1 of the battery cell end face 211 can be any value between 0.2 and 0.8. In some embodiments of this application, the ratio of the overlapping area S2 of the orthographic projection of the adhesive-blocking part 30 and the orthographic projection of the corresponding battery cell end face 211 to the area S1 of the battery cell end face 211 can be 0.2, 0.3, 0.4, 0.5, 0.8, etc., but this utility model is not limited to this. The ratio of the overlapping area S2 of the orthographic projection of the adhesive-blocking part 30 and the orthographic projection of the corresponding battery cell end face 211 to the area S1 of the battery cell end face 211 can also be other values ​​between 0.2 and 0.8, as long as the ratio of the overlapping area S2 of the orthographic projection of the adhesive-blocking part 30 and the orthographic projection of the corresponding battery cell end face 211 to the area S1 of the battery cell end face 211 satisfies the relationship: 0.2≤S2 / S1≤0.8. This design effectively improves the temperature difference between the end battery cell 21 and the middle battery cell 21, and ensures that there is sufficient thermally conductive adhesive area between the battery cell 21 and the bottom wall of the receiving groove 11 for bonding the battery module 20 and the heat exchange structure 10. This prevents bonding failure between the battery module 20 and the heat exchange structure 10, thus ensuring the stability and reliability of the battery module 20.

[0048] According to some embodiments of this utility model, the adhesive-blocking part 30 can be constructed as a foam component. The foam component has good shock resistance and compression resistance. When the battery module 20 is subjected to vibration or impact, it can absorb and disperse these forces, protecting the battery cells 21 from excessive compression and ensuring the safety and stability of the battery module 20. The foam component has good sealing performance. When used as the adhesive-blocking part 30, it can effectively prevent the thermally conductive structural adhesive from overflowing during curing and prevent external moisture, dust, and other impurities from entering the battery module 20, thereby protecting the battery cells 21 from damage. The thermal insulation performance of the foam component can also be used to reduce the thermal interaction between the end battery cells 21 and the module end plate mounting beam 113, thereby optimizing the temperature distribution of the battery module 20 and reducing the temperature difference between the end battery cells 21 and the middle battery cells 21, which is beneficial to improving the performance of the battery module 20 and extending its service life. Furthermore, the foam component is easy to cut and paste, making the manufacturing and installation process of the adhesive-blocking part 30 simple and quick, helping to improve production efficiency and reduce costs.

[0049] According to some embodiments of the present invention, such as Figure 3 As shown, the battery module assembly 100 may further include: a limiting part 40, which is disposed in the receiving groove 11 and between the battery module 20 and the bottom wall 111 of the groove. The limiting part 40 extends along a first direction and is located inside the adhesive-blocking part 30 along the first direction.

[0050] The limiting part 40 can be made of carbon fiber composite material, rubber, silicone, etc. The limiting part 40 is disposed within the receiving groove 11, between the battery module 20 and the bottom wall 111 of the groove. The limiting part 40 extends along a first direction and is located inside the adhesive-blocking part 30. It can limit the thermally conductive structural adhesive on the bottom wall 111 of the groove, thereby effectively limiting the thickness of the thermally conductive structural adhesive along the first direction to ensure the height of the battery module 20, thus helping to maintain the stability and integrity of the battery module 20 structure. It can be noted that when the thermally conductive structural adhesive is pressed, it may deform, resulting in uneven thickness distribution. Therefore, the limiting part 40 effectively ensures that after the battery module 20 is installed on the heat exchange structure 10, the height of the bottom wall of the battery module 20 is consistent with the height of the limiting part 40, ensuring the stability and integrity of the battery module 20 structure.

[0051] According to some embodiments of the present invention, such as Figure 3 As shown, there can be multiple limiting parts 40, and the multiple limiting parts 40 are arranged sequentially at intervals along the second direction. The first direction, the second direction and the depth direction of the receiving groove 11 are perpendicular to each other.

[0052] The limiting part 40 can be multiple. In some embodiments of this application, there can be two, three, four, or other numbers of limiting parts 40. However, this utility model is not limited to this and can have other numbers of limiting parts 40, as long as there are multiple limiting parts 40. The multiple limiting parts 40 are arranged sequentially at intervals along the second direction. Specifically, two limiting parts 40 can be provided between the bottom wall of each battery module 20 and the bottom wall 111 of the receiving groove 11. These limiting parts are used to limit the thermally conductive structural adhesive between each battery module 20 and the bottom wall 111 of the receiving groove 11, thereby limiting the thickness of the thermally conductive structural adhesive to ensure that the height of each battery module 20 is consistent. This ensures that the battery modules 20 remain neat and orderly during assembly. The limiting parts 40 can also serve as additional support structures to support the battery modules 20, thereby enhancing the stability of the battery modules 20.

[0053] According to some embodiments of this utility model, along the depth direction of the receiving groove 11, the thickness dimension of the adhesive-blocking part 30 is D1, and the thickness dimension of the limiting part 40 is D2, satisfying the relationship: 1.2D2≤D1≤4D2. That is, the thickness dimension D1 of the adhesive-blocking part 30 can be any value between 1.2D2 and 4D2. In some embodiments of this application, the thickness dimension D1 of the adhesive-blocking part 30 can be 1.2D2, 1.3D2, 2D2, 4D2, etc., but this utility model is not limited to this. The thickness dimension D1 of the adhesive-blocking part 30 can also be other values ​​between 1.2D2 and 4D2, as long as the thickness dimension D1 of the adhesive-blocking part 30 satisfies the relationship: 1.2D2≤D1≤4D2. This design ensures that the adhesive baffle 30 has sufficient thickness to both block the thermally conductive structural adhesive and support the battery module 20, while also preventing it from being too thick and thus failing to compress properly. This ensures that the thickness of the adhesive baffle 30 after compression is consistent with or approximately consistent with the thickness of the limiting part 40. (It should be noted that the thickness dimension D1 of the adhesive baffle 30 is the thickness of the adhesive baffle 30 before compression, and the thickness of the adhesive baffle 30 after compression is consistent with or approximately consistent with the thickness of the limiting part 40.) This ensures that the adhesive baffle 30 does not affect the thickness of the thermally conductive structural adhesive and the height of the battery module 20, thereby ensuring the stability and reliability of the battery module 20.

[0054] According to the battery device of the present invention, the battery module assembly 100 of the battery device of the above embodiment is provided with a baffle 30 between the end battery cell 21 and the bottom wall 111 of the receiving groove 11, which can play a role in preventing glue overflow, thereby limiting the heat transfer path of the end battery cell 21, thereby reducing the heat transfer area of ​​the end battery cell 21 through the thermally conductive structural glue, and thus effectively reducing the temperature difference between the end battery cell 21 and the middle battery cell 21.

[0055] The vehicle according to the present invention includes the battery device of the above embodiment. By providing a baffle 30 between the end battery cell 21 and the bottom wall 111 of the receiving groove 11, it can prevent glue overflow, thereby limiting the heat transfer path of the end battery cell 21 and reducing the heat transfer area of ​​the end battery cell 21 through the thermally conductive structural glue. This can effectively reduce the temperature difference between the end battery cell 21 and the middle battery cell 21, and also reduce the manufacturing process difficulty and manufacturing cost of the battery device.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module assembly for a battery device, characterized in that, include: A heat exchange structure having a receiving groove; A battery module comprising multiple battery cells arranged sequentially along a first direction, wherein at least a portion of each battery cell is installed in the receiving groove, and all of the battery cells are fixed in the receiving groove. A baffle portion is provided in the receiving groove. The baffle portion is provided between at least one battery cell located at the end and the bottom wall of the receiving groove. The first direction is perpendicular to the depth direction of the receiving groove.

2. The battery module assembly of the battery device according to claim 1, characterized in that, The adhesive-blocking portion abuts against both the corresponding battery cell and the bottom wall of the tank; and / or The adhesive-blocking portion extends along a second direction, and the first direction, the second direction, and the depth direction of the receiving groove are perpendicular to each other.

3. The battery module assembly of the battery device according to claim 1, characterized in that, Along the depth direction of the receiving groove, the battery cell located at the end has a battery cell end face facing the bottom wall of the groove, and the adhesive-blocking part is located between the battery cell end face and the bottom wall of the groove.

4. The battery module assembly of the battery device according to claim 3, characterized in that, The area of ​​the end face of the battery cell is S1. Along the depth direction of the receiving groove, the area of ​​the overlapping region between the orthographic projection of the adhesive-blocking part and the orthographic projection of the corresponding end face of the battery cell is S2, satisfying the relationship: 0.2≤S2 / S1≤0.

8.

5. The battery module assembly of the battery device according to claim 1, characterized in that, The adhesive-blocking part is constructed of foam.

6. The battery module assembly of the battery device according to any one of claims 1-5, characterized in that, Also includes: A limiting part is provided in the receiving groove, the limiting part is provided between the battery module and the bottom wall of the groove, the limiting part extends along the first direction, and the limiting part is located inside the adhesive blocking part along the first direction.

7. The battery module assembly of the battery device according to claim 6, characterized in that, The limiting part is a plurality of such parts, which are arranged at intervals along the second direction, and the first direction, the second direction and the depth direction of the receiving groove are perpendicular to each other.

8. The battery module assembly of the battery device according to claim 6, characterized in that, Along the depth direction of the receiving groove, the thickness of the adhesive-blocking part is D1, and the thickness of the limiting part is D2, satisfying the relationship: 1.2D2≤D1≤4D2.

9. A battery device, characterized in that, The battery module assembly includes the battery device according to any one of claims 1-8.

10. A vehicle, characterized in that, Includes the battery device according to claim 9.

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