Battery pack and vehicle

Abstract

The utility model discloses a battery pack and a vehicle. The battery pack comprises a battery cell module, a shell, an anti-impact layer, a fireproof layer and a cover plate, the shell is provided with a containing cavity, the battery cell module is arranged in the containing cavity, the containing cavity is provided with a cavity opening and a cavity bottom which are oppositely arranged, and the cover plate covers the cavity opening; the fireproof layer is arranged on the side, facing the battery cell module, of the cover plate, the anti-impact layer is arranged on the side, close to the battery cell module, of the fireproof layer, the battery cell module comprises a plurality of battery cells, the side, facing the anti-impact layer, of each battery cell is provided with an anti-explosion valve, and the anti-impact layer at least covers the anti-explosion valves of the battery cells. Therefore, when the battery cell is subjected to thermal runaway, the impact-resistant layer can weaken the direct action of thermal impact at the explosion-proof valve and the cover plate, and the heat resistance of the cover plate is enhanced; the fireproof layer can bear high temperature during thermal runaway eruption of the battery cells, the influence of the high temperature on the cover plate is weakened, and the heat resistance of the battery pack is improved.

Description

Technical Field

[0001] This application belongs to the field of power battery technology, specifically relating to a battery pack and a vehicle. Background Technology

[0002] In recent years, new energy vehicles have developed rapidly, and the safety of battery packs, as the main power source for these vehicles, is of paramount importance. A battery pack consists of multiple cell modules. When a cell module experiences thermal runaway, heat diffusion occurs, generating enormous amounts of heat and high-temperature gases, causing a sharp increase in internal pressure within the battery pack.

[0003] In related technologies, no fireproof and heat-insulating device is installed between the battery cell module and the top cover. When a single battery cell or battery cell module experiences thermal runaway, the explosion-proof valve of the single battery cell bursts, and the resulting high-temperature material is directly sprayed onto the top cover of the enclosure, causing the top cover to melt and break through, thereby threatening the lives of passengers and drivers. Utility Model Content

[0004] This application aims to provide a battery pack and vehicle that can solve the problem in the prior art where high-temperature materials generated during thermal runaway of battery cells melt and penetrate the cover.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a battery pack, comprising: a cell module, a housing, an impact-resistant layer, a fire-resistant layer, and a cover plate; the housing has a receiving cavity, the cell module is disposed in the receiving cavity, the receiving cavity has an opening and a bottom disposed opposite to each other, and the cover plate is disposed on the opening; the fire-resistant layer is disposed on the side of the cover plate facing the cell module, the impact-resistant layer is disposed on the side of the fire-resistant layer close to the cell module, the cell module includes multiple cells, each cell has an explosion-proof valve on the side facing the impact-resistant layer, and the impact-resistant layer covers at least the explosion-proof valves of multiple cells.

[0007] Optionally, the battery cell module includes multiple rows of battery cells arranged at intervals; multiple impact-resistant layers are provided, each impact-resistant layer corresponds to one row of battery cells, and covers at least the explosion-proof valves of multiple battery cells in each row of battery cells.

[0008] Optionally, the plurality of impact-resistant layers are arranged at intervals along the arrangement direction of the battery cell array; and / or, two adjacent impact-resistant layers are interconnected.

[0009] Optionally, the battery cell has a first direction, which is the height direction of the battery cell; the orthographic projection of the impact-resistant layer along the first direction covers the orthographic projection of the explosion-proof valve along the first direction.

[0010] Optionally, the battery cell further has a second direction, which is the length direction of the battery cell, and the impact-resistant layer is attached to the fireproof layer on the side facing the fireproof layer; along the first direction, the distance between the impact-resistant layer and the explosion-proof valve is H; along the second direction, the distance between the edge of the explosion-proof valve and the edge of the impact-resistant layer adjacent to it is L, satisfying: 0.5≤L / H≤2.

[0011] Optionally, along the first direction, the distance between the impact-resistant layer and the explosion-proof valve is H, satisfying: 0 < H ≤ 10 mm; and / or, along the second direction, the distance between the edge of the explosion-proof valve and the edge of the adjacent impact-resistant layer is L, satisfying: 0 < L ≤ 20 mm.

[0012] Optionally, the thickness of the impact-resistant layer is T1, and the thickness of the fireproof layer is T2, satisfying: 0.4≤T1 / T2≤3.

[0013] Optionally, the thickness of the impact-resistant layer is T1, satisfying: 0.2mm≤T1≤0.6mm; and / or, the thickness of the fireproof layer is T2, satisfying: 0.2mm≤T2≤0.5mm; and / or, the thickness of the cover plate is T3, satisfying: 0.8mm≤T3≤1.5mm.

[0014] Optionally, the fireproof layer and the cover plate are integrally formed.

[0015] Secondly, embodiments of this application provide a vehicle including the battery pack described in the above embodiments.

[0016] In the embodiments of this application, the battery cell module is disposed in a receiving cavity, and a cover plate is placed at the cavity opening. A fireproof layer is disposed on the side of the cover plate facing the battery cell module, and an impact-resistant layer is disposed on the side of the fireproof layer close to the battery cell module. The impact-resistant layer covers at least the explosion-proof valves of multiple battery cells. Thus, the impact-resistant layer acts as an isolation layer between the battery cell and the cover plate, preventing high-temperature substances inside the battery cell from directly impacting the cover plate when thermal runaway occurs, thus providing isolation and protection for the cover plate. Simultaneously, by providing a fireproof layer on the side of the cover plate facing the battery cell module, the fireproof layer can withstand the high temperatures during thermal runaway of the battery cell, reducing the impact of high temperatures on the cover plate and improving the heat resistance of the battery pack. In summary, the battery pack of this application can reduce the effects of high temperatures and thermal shock on the cover plate during battery cell runaway, preventing the cover plate from being burned through, thereby improving the safety performance of the battery pack.

[0017] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application 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 a battery pack according to an embodiment of this application;

[0020] Figure 2 This is a partial cross-sectional view of a battery pack according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of a battery cell according to an embodiment of this application.

[0022] Figure label:

[0023] 1-Battery cell module; 11-Battery cell; 12-Explosion-proof valve; 2-Impact-resistant layer; 3-Fireproof layer; 4-Cover plate; Z-First direction; Y-Second direction; X-Third direction. Detailed Implementation

[0024] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated 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 application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] The battery pack and vehicle provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0029] like Figures 1 to 3 As shown in the embodiment of this application, a battery pack is proposed, including: a cell module 1, a housing, an impact-resistant layer 2, a fireproof layer 3, and a cover plate 4; the housing has a receiving cavity, the cell module 1 is disposed in the receiving cavity, the receiving cavity has an opening and a bottom disposed opposite to each other, and the cover plate 4 is disposed on the opening; the fireproof layer 3 is disposed on the side of the cover plate 4 facing the cell module 1, the impact-resistant layer 2 is disposed on the side of the fireproof layer 3 close to the cell module 1, the cell module 1 includes a plurality of cells 11, each cell 11 is provided with an explosion-proof valve 12 on the side facing the impact-resistant layer 2, and the impact-resistant layer 2 covers at least the explosion-proof valves 12 of the plurality of cells 11.

[0030] In the embodiments of this application, the battery cell module 1 is disposed in the receiving cavity, and the cover plate 4 is disposed at the cavity opening; the fireproof layer 3 is disposed on the side of the cover plate 4 facing the battery cell module 1, and the impact-resistant layer 2 is disposed on the side of the fireproof layer 3 close to the battery cell module 1, and the impact-resistant layer 2 covers at least the explosion-proof valves 12 of multiple battery cells 11. In this way, the impact-resistant layer 2 can isolate the battery cell 11 from the cover plate 4, preventing the high-temperature material inside the battery cell 11 from directly acting on the cover plate 4 when the battery cell 11 experiences thermal runaway and is ejected through the explosion-proof valves 12, thus providing isolation and protection for the cover plate 4; at the same time, by providing the fireproof layer 3 on the side of the cover plate 4 facing the battery cell module 1, the fireproof layer 3 can withstand the high temperature during the thermal runaway of the battery cell 11, reducing the impact of high temperature on the cover plate 4 and improving the heat resistance of the battery pack. In summary, the battery pack of this application can reduce the effects of high temperature and thermal shock on the cover plate 4 when the cell 11 runs away, prevent the cover plate 4 from being burned and broken, and thus improve the safety performance of the battery pack.

[0031] Furthermore, the solution of this application can adapt to different conditions that trigger thermal runaway of the battery pack. For example, by setting a heating element inside the cell 11 to trigger thermal runaway of the cell 11, this triggering method results in a smaller impact force of the high-temperature material generated by the cell 11, but a higher temperature. The fireproof layer 3 provided in this application can effectively withstand the high temperature during the thermal runaway eruption of the cell 11. This application can also trigger thermal runaway of the cell 11 by needle penetration. This triggering method results in a larger impact force of the high-temperature material generated by the cell 11, but a lower temperature. The impact-resistant layer 2 provided in this application can effectively withstand the larger impact force during the thermal runaway eruption of the cell 11.

[0032] In some embodiments, the impact-resistant layer 2 can be made of mica; for example, a composite layer of phlogopite, mica rolls, aerogel, or ceramic can be used; through the composite layer material, a better fireproof effect can be achieved and the thermal shock resistance can be enhanced.

[0033] Optionally, such as Figure 1 As shown, the battery cell module 1 includes multiple rows of battery cells arranged at intervals; multiple impact-resistant layers 2 are provided, each impact-resistant layer 2 corresponds to a row of battery cells, and at least covers the explosion-proof valves 12 of multiple battery cells 11 in each row of battery cells.

[0034] In this embodiment, the battery cell module 1 is configured with multiple rows of battery cells and multiple shock-resistant layers 2. The multiple rows of battery cells are arranged at intervals, and each shock-resistant layer 2 corresponds to one row of battery cells and at least covers the explosion-proof valves 12 of multiple battery cells 11 in each row of battery cells. In this way, by having each shock-resistant layer 2 correspond to one row of battery cells and at least cover the explosion-proof valves 12 of multiple battery cells 11 in each row of battery cells, the configuration can be targeted to reduce the amount of material used in the shock-resistant layer 2 and reduce the overall weight of the battery pack.

[0035] like Figure 1 As shown, the first direction Z is the height direction of the battery cell 11, the second direction Y is the length direction of the battery cell 11, and the third direction X is the width direction of the battery cell 11.

[0036] In some embodiments, such as Figure 1 As shown, multiple cells 11 in each cell row can be arranged along a third direction X. In this way, the explosion-proof valves 12 of the multiple cells 11 in each cell row are also arranged in rows, with each impact-resistant layer 2 corresponding to each row of explosion-proof valves 12, thus saving material on the impact-resistant layer 2. Alternatively, the multiple cells 11 in each cell row can also be arranged along a second direction Y, and the impact-resistant layer 2 is also arranged along the second direction Y.

[0037] Optionally, such as Figure 1 As shown, multiple impact-resistant layers 2 are arranged at intervals along the arrangement direction of the battery cell array.

[0038] In this embodiment, multiple impact-resistant layers 2 are arranged at intervals along the arrangement direction of the battery cell array. This allows for thermal insulation of the explosion-proof valve 12 within the coverage area of ​​each impact-resistant layer 2, reducing the area of ​​the impact-resistant layers 2 used and saving costs.

[0039] Optionally, two adjacent impact-resistant layers 2 are interconnected.

[0040] In this embodiment, two adjacent impact-resistant layers 2 are interconnected. This further enhances the thermal shock resistance of the impact-resistant layers 2.

[0041] Specifically, in Figure 1 In this process, any two adjacent shock-resistant layers 2 are connected. This improves the shock resistance of the uncovered portion between the two adjacent rows of explosion-proof valves 12 in the event of thermal runaway between the two rows of cells corresponding to the two shock-resistant layers 2.

[0042] Furthermore, every two adjacent impact-resistant layers 2 are connected to each other, so that the impact-resistant layer 2 and the fireproof layer 3 are set as a single sheet. In this way, the impact-resistant layer 2 can fully cover the cover plate 4, thereby achieving comprehensive impact resistance for the cover plate 4.

[0043] Optionally, such as Figure 1 and Figure 3 As shown, the battery cell 11 has a first direction Z, which is the height direction of the battery cell 11; the orthogonal projection of the impact-resistant layer 2 along the first direction Z covers the orthogonal projection of the explosion-proof valve 12 along the first direction Z.

[0044] In this embodiment, the impact-resistant layer 2 is configured to cover the orthogonal projection of the explosion-proof valve 12 along the first direction Z by means of its orthogonal projection along the first direction Z. Thus, by setting the coverage area of ​​the impact-resistant layer 2 and the area of ​​the explosion-proof valve 12, the impact-resistant layer 2 can cover the corresponding position of the explosion-proof valve 12, covering all the heat-sensitive weak points of the cover plate 4, thereby improving the heat resistance performance of the cover plate 4.

[0045] In some embodiments, the orthographic projection of the impact-resistant layer 2 along the first direction Z is the first projected area, and the orthographic projection of the explosion-proof valve 12 along the first direction Z is the second projected area, and the first projected area must cover the second projected area.

[0046] Optionally, such as Figure 2 As shown, the battery cell 11 also has a second direction Y, which is the length direction of the battery cell 11. The impact-resistant layer 2 is attached to the fireproof layer 3 on the side facing the fireproof layer 3. Along the first direction Z, the distance between the impact-resistant layer 2 and the explosion-proof valve 12 is H. Along the second direction Y, the distance between the edge of the explosion-proof valve 12 and the edge of the adjacent impact-resistant layer 2 is L, satisfying: 0.5≤L / H≤2.

[0047] In this embodiment, the impact-resistant layer 2 is bonded to the fireproof layer 3 on the side facing it; the distance between the impact-resistant layer 2 and the explosion-proof valve 12 along the first direction Z is H; the distance between the edge of the explosion-proof valve 12 and the edge of the adjacent impact-resistant layer 2 along the second direction Y is L, and the ratio L / H is set within a certain range. This avoids a small L / H ratio that weakens the impact resistance of the impact-resistant layer 2, and avoids a large L / H ratio that increases the material usage of the impact-resistant layer 2, thus increasing costs.

[0048] For example, the value of L / H can be set to any value such as 0.5, 1.0, 1.5, 2.0, 2.5, or a range between any two values.

[0049] Optionally, such as Figure 2 As shown, along the first direction Z, the distance between the impact-resistant layer 2 and the explosion-proof valve 12 is H; satisfying: 0 < H ≤ 10 mm.

[0050] In this embodiment, the distance H between the impact-resistant layer 2 and the explosion-proof valve 12 is set within a certain range. This avoids the impact-resistant layer 2 from being too large, which would prevent it from effectively contacting the high-temperature flame of the thermal runaway of the battery cell 11, thus failing to fully utilize the performance of the impact-resistant layer 2.

[0051] For example, the value of H can be set to any value or a range between any two values, such as 0.1mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm.

[0052] Optionally, such as Figure 2 As shown, along the second direction Y, the distance from the edge of the explosion-proof valve 12 to the edge of the adjacent impact-resistant layer 2 is L, which satisfies: 0 < L ≤ 20 mm.

[0053] In this embodiment, the distance L between the edge of the explosion-proof valve 12 and the edge of the adjacent impact-resistant layer 2 is set within a certain range. This avoids the distance between the edge of the explosion-proof valve 12 and the edge of the adjacent impact-resistant layer 2 being too large, which would increase the amount of impact-resistant layer 2 used and thus increase costs.

[0054] In some embodiments, such as Figure 2 As shown, the distance from the right edge of the explosion-proof valve 12 to the right edge of the impact-resistant layer 2 is L, and the distance from the left edge of the explosion-proof valve 12 to the left edge of the impact-resistant layer 2 can also be set to L.

[0055] For example, the value of L can be set to any value or a range between any two values, such as 0.1mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm.

[0056] Optionally, the thickness of the impact-resistant layer 2 is T1, and the thickness of the fireproof layer 3 is T2, satisfying: 0.4≤T1 / T2≤3.

[0057] It should be noted that the thickness T1 of the impact-resistant layer 2 is the dimension of the impact-resistant layer 2 along the first direction Z; the thickness T2 of the fireproof layer 3 is the dimension of the fireproof layer 3 along the first direction Z.

[0058] In this embodiment, the thickness T1 of the impact-resistant layer 2 and the thickness T2 of the fireproof layer 3 are set within a certain range. This avoids the situation where T1 / T2 is too small, which would fail to meet the requirements for thermal shock resistance and high temperature resistance, and avoids the situation where T1 / T2 is too large, which would increase the amount of material used in the impact-resistant layer 2 and the fireproof layer 3.

[0059] For example, the value of T1 / T2 can be set to any value or a range between any two values, such as 0.4, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.

[0060] Optionally, the thickness of the impact-resistant layer 2 is T1, satisfying: 0.2mm≤T1≤0.6mm; preferably, T1=0.3mm.

[0061] In this embodiment, the thickness T1 of the impact-resistant layer 2 is set within a certain range. This avoids the problem that if the thickness T1 of the impact-resistant layer 2 is too small, it will not meet the requirements for thermal shock resistance, and if the thickness T1 of the impact-resistant layer 2 is too large, it will increase the amount of impact-resistant layer 2 used, thereby increasing the cost.

[0062] For example, the value of T1 can be set to any value such as 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, or any range between two values.

[0063] Optionally, the thickness of the fireproof layer 3 is T2, satisfying: 0.2mm≤T2≤0.5mm; preferably, T2=0.4mm.

[0064] In this embodiment, the thickness T2 of the fireproof layer 3 is set within a certain range. This avoids the problem that if the thickness T2 of the fireproof layer 3 is too small, it will not meet the high temperature resistance requirements, and if the thickness T2 of the fireproof layer 3 is too large, it will increase the amount of fireproof layer 3 used, thereby increasing the cost.

[0065] For example, the value of T2 can be set to any value or a range between any two values, such as 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm.

[0066] Optionally, the thickness of the cover plate 4 is T3, satisfying: 0.8mm≤T3≤1.5mm; preferably, T3=1.2mm.

[0067] It should be noted that the thickness T3 of the cover plate 4 is the dimension of the cover plate 4 along the first direction Z.

[0068] In this embodiment, the thickness T3 of the cover plate 4 is set within a certain range. This avoids the problem that the thickness T3 of the cover plate 4 is too small to meet the deformation resistance requirements, and also avoids the problem that the thickness T3 of the cover plate 4 is too large, which would increase the amount of cover plate 4 used and thus increase the cost.

[0069] For example, the value of T3 can be set to any value or a range between any two values, such as 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm.

[0070] Optionally, the fireproof layer 3 and the cover plate 4 are integrally molded parts.

[0071] In this embodiment, the fireproof layer 3 and the cover plate 4 are integrally molded. This facilitates the processing of the fireproof layer 3 and the cover plate 4 and increases the connection strength between them.

[0072] In some embodiments, the cover plate 4 is made of glass fiber resin composite material, and the fireproof layer 3 is also made of glass fiber resin composite material; during the manufacturing process of the cover plate 4 and the fireproof layer 3, the cover plate 4 and the fireproof layer 3 are integrated into one piece by compression molding technology.

[0073] Optionally, embodiments of this application provide a vehicle including the battery pack described in the above embodiments.

[0074] In the embodiments of this application, the battery cell module 1 is disposed in the receiving cavity, and the cover plate 4 is disposed at the cavity opening; the fireproof layer 3 is disposed on the side of the cover plate 4 facing the battery cell module 1, and the impact-resistant layer 2 is disposed on the side of the fireproof layer 3 close to the battery cell module 1, and the impact-resistant layer 2 covers at least the explosion-proof valves 12 of multiple battery cells 11. In this way, the impact-resistant layer 2 can isolate the battery cell 11 from the cover plate 4, preventing the high-temperature material inside the battery cell 11 from directly acting on the cover plate 4 when the battery cell 11 experiences thermal runaway and is ejected through the explosion-proof valves 12, thus providing isolation and protection for the cover plate 4; at the same time, by providing the fireproof layer 3 on the side of the cover plate 4 facing the battery cell module 1, the fireproof layer 3 can withstand the high temperature during the thermal runaway of the battery cell 11, reducing the impact of high temperature on the cover plate 4 and improving the heat resistance of the battery pack. In summary, the battery pack of this application can reduce the effects of high temperature and thermal shock on the cover plate 4 when the cell 11 runs away, prevent the cover plate 4 from being burned and broken, and thus improve the safety performance of the battery pack.

[0075] 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 this application. 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.

[0076] Although embodiments of this application 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 this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that, include: The battery cell module (1), the housing, the impact-resistant layer (2), the fireproof layer (3), and the cover plate (4); The housing has a receiving cavity, the battery cell module (1) is disposed in the receiving cavity, the receiving cavity has an opening and a bottom disposed opposite to each other, and the cover plate (4) is disposed on the opening; the fireproof layer (3) is disposed on the side of the cover plate (4) facing the battery cell module (1), the impact-resistant layer (2) is disposed on the side of the fireproof layer (3) close to the battery cell module (1), the battery cell module (1) includes a plurality of battery cells (11), each battery cell (11) is provided with an explosion-proof valve (12) on the side facing the impact-resistant layer (2), and the impact-resistant layer (2) covers at least the explosion-proof valves (12) of the plurality of battery cells (11).

2. The battery pack according to claim 1, characterized in that, The battery cell module (1) includes multiple rows of battery cell rows, which are arranged at intervals. The impact-resistant layer (2) is provided in multiple ways, each impact-resistant layer (2) corresponds to a row of battery cells, and covers at least the explosion-proof valve (12) of multiple battery cells (11) in each row of battery cells.

3. The battery pack according to claim 2, characterized in that, Multiple shock-resistant layers (2) are arranged at intervals along the arrangement direction of the battery cell array; and / or, two adjacent shock-resistant layers (2) are connected to each other.

4. The battery pack according to any one of claims 1-3, characterized in that, The battery cell (11) has a first direction (Z), which is the height direction of the battery cell (11); the orthographic projection of the impact-resistant layer (2) along the first direction (Z) covers the orthographic projection of the explosion-proof valve (12) along the first direction (Z).

5. The battery pack according to claim 4, characterized in that, The battery cell (11) also has a second direction (Y), which is the length direction of the battery cell (11), and the impact-resistant layer (2) is attached to the fireproof layer (3) on the side facing the fireproof layer (3); Along the first direction (Z), the distance between the impact-resistant layer (2) and the explosion-proof valve (12) is H; along the second direction (Y), the distance between the edge of the explosion-proof valve (12) and the edge of the impact-resistant layer (2) adjacent to it is L, satisfying: 0.5≤L / H≤2.

6. The battery pack according to claim 5, characterized in that, Along the first direction (Z), the distance between the impact-resistant layer (2) and the explosion-proof valve (12) is H; satisfying: 0 < H ≤ 10 mm; And / or, along the second direction (Y), the distance from the edge of the explosion-proof valve (12) to the edge of the adjacent impact-resistant layer (2) is L, satisfying: 0 < L ≤ 20 mm.

7. The battery pack according to any one of claims 1-6, characterized in that, The thickness of the impact-resistant layer (2) is T1, and the thickness of the fireproof layer (3) is T2, satisfying: 0.4≤T1 / T2≤3.

8. The battery pack according to any one of claims 1-7, characterized in that, The thickness of the impact-resistant layer (2) is T1, which satisfies: 0.2mm≤T1≤0.6mm; And / or, the thickness of the fireproof layer (3) is T2, satisfying: 0.2mm≤T2≤0.5mm; And / or, the thickness of the cover plate (4) is T3, satisfying: 0.8mm≤T3≤1.5mm.

9. The battery pack according to any one of claims 1-8, characterized in that, The fireproof layer (3) and the cover plate (4) are integrally formed parts.

10. A vehicle, characterized in that, Includes the battery pack as described in any one of claims 1-9 above.

Images