Battery pack and automobile

Abstract

The utility model provides a battery pack and an automobile, and relates to the technical field of batteries. The battery pack comprises a box body, a battery pack and a partition plate, the partition plate is arranged between the bottom wall of the battery pack and the bottom wall of the containing cavity of the box body, the battery pack and the partition plate are bonded through a structural adhesive layer, and the partition plate and the box body are bonded through a soluble adhesive layer, so that the battery pack can be bonded and fixed to the box body through the partition plate. The staggered part of the bottom wall of the battery pack and the partition plate is bonded with the box body through the structural adhesive layer, so that the bonding and fixing area of the battery pack and the box body is larger, and the bonding effect is more reliable. The partition plate is adhered to the box body through the soluble gel layer, and the partition plate can be separated from the box body by adding a dissolving solution into the soluble gel layer, so that the edge of the battery pack can be conveniently separated from the box body; therefore, the battery pack and the box body can be conveniently separated through the bonding part of the structural adhesive layer, so that the battery pack can be conveniently disassembled.

Description

Technical Field

[0001] The present application relates to a battery pack and a car, and belongs to the technical field of batteries. Background Art

[0002] A module-free battery pack is a battery pack in which the batteries are directly bonded to the box through structural adhesive. Since the traditional module frame structure is abandoned, the space utilization rate in the box can be improved, so that more batteries can be installed in the box, thereby making the module-free battery pack more energy-efficient.

[0003] At present, in order to make the structure of the module-free battery pack stable and reliable, the structural adhesive between the battery and the box has a large adhesion, and the tensile and shear strength of the structural adhesive is greater than 8MPa. Although this can make the connection between the battery and the box reliable, when the battery needs to be disassembled, due to the excessive tensile and shear strength of the structural adhesive, the battery needs to be disassembled in a destructive way, making it difficult to remove the battery from the box without damage. Utility Model Content

[0004] The present application provides a battery pack and a car, which solves the problem in the related art that batteries in non-module battery packs are difficult to disassemble.

[0005] In a first aspect, the present application provides a battery pack:

[0006] A box body having a cavity;

[0007] A battery pack is disposed in the cavity;

[0008] A partition is arranged between the bottom wall of the battery pack and the bottom wall of the cavity, and the partition is located at the edge of the battery pack, the battery pack and the partition are bonded by a structural adhesive layer, and the partition and the box are bonded by a soluble adhesive layer;

[0009] Wherein, the part where the bottom wall of the battery pack is misaligned with the partition is bonded to the bottom wall of the cavity through the structural adhesive layer.

[0010] In some embodiments, the battery pack includes a plurality of battery cells, the plurality of battery cells are stacked along the thickness direction of the battery cells, the partition extends along the stacking direction of the plurality of battery cells, and the edges of the plurality of battery cells are bonded to the partition through the structural adhesive layer.

[0011] In some embodiments, there are multiple battery packs and multiple partitions, and the multiple battery packs are arranged in the cavity along a first direction and a second direction, the first direction and the second direction are perpendicular to each other, and the multiple partitions are correspondingly bonded to the multiple battery packs.

[0012] In some embodiments, the box body includes a bottom plate, a frame and a partition beam, the frame is arranged at the edge of the bottom plate along the circumference of the bottom plate, the partition beam is arranged on the bottom plate and both ends of the partition beam are connected to the frame, the partition beam divides the cavity into a plurality of sub-cavities, and the plurality of battery packs are respectively arranged in the plurality of sub-cavities.

[0013] In some embodiments, the plurality of partitions are located on a side of the battery pack adjacent to the frame, and a gap exists between the partitions, the battery pack, and the frame.

[0014] In some embodiments, the frame and the bottom plate are arranged at an angle greater than 90 degrees, and the frame is inclined in a direction away from the side wall of the battery pack.

[0015] In some embodiments, the partition includes a load-bearing portion and a side stop portion, the load-bearing portion is located between the bottom wall of the battery pack and the bottom plate, the side stop portion is connected to the load-bearing portion, and the side stop portion is located between the side wall of the battery pack and the frame.

[0016] In some embodiments, a connection between the bearing portion and the side stop portion is adjacent to a connection between the bottom plate and the frame, and a gap exists between the side stop portion and the frame.

[0017] In some embodiments, the side blocking portion and the bearing portion are arranged at an angle greater than 90 degrees, and the side blocking portion is inclined toward the frame.

[0018] In a second aspect, based on the above battery pack, the present application also provides a car, including the above battery pack.

[0019] In the battery pack provided by the present application, the battery pack is arranged in a box, and the box can serve the purpose of protecting the battery pack. The partition is arranged between the bottom wall of the battery pack and the bottom wall of the cavity of the box, and the battery pack and the partition are bonded by a structural adhesive layer, and the partition and the box are bonded by a soluble adhesive layer, so that the battery pack can be bonded and fixed to the box through the partition. The part where the bottom wall of the battery pack and the partition are misaligned is bonded to the box through the structural adhesive layer, so that the bonding and fixing area between the battery pack and the box is larger, and the bonding effect is more reliable. The partition and the box are bonded by a soluble adhesive layer, and the partition can be separated from the box by adding a dissolving liquid to the soluble adhesive layer, so that the edge of the battery pack can be easily separated from the box. In this way, by tilting the edge of the partition set on the battery pack, the part between the battery pack and the box bonded by the structural adhesive layer can be easily separated, so that the battery pack can be easily disassembled.

[0020] In the automobile proposed in the present application, since the above-mentioned battery pack is applied, the battery pack is easy to disassemble and maintain, thereby reducing the maintenance cost of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other purposes, features and advantages of the embodiments of the present application will become more easily understood through the following detailed description with reference to the accompanying drawings. In the accompanying drawings, multiple embodiments of the present application will be described in an exemplary and non-limiting manner, wherein:

[0022] Figure 1 A schematic diagram of a battery pack according to an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the installation of a battery pack and a box body of a battery pack according to an embodiment of the present application;

[0024] Figure 3 A schematic diagram of a structural adhesive layer and a soluble adhesive layer of a battery pack according to an embodiment of the present application;

[0025] Figure 4 A schematic diagram of a battery pack of a battery pack according to an embodiment of the present application.

[0026] Reference numerals:

[0027] 100-box, 110-bottom plate, 120-frame, 130-partition beam, 140-cavity, 141-sub-cavity,

[0028] 200-battery pack, 210-cell,

[0029] 300- partition, 310- bearing part, 320- side stop part,

[0030] 400-structural adhesive layer,

[0031] 500-Soluble gel layer,

[0032] 600 - Tilt tool. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0039] A module-free battery pack is a battery pack in which the batteries are directly bonded to the box through structural adhesive. Since the traditional module frame structure is abandoned, the space utilization rate in the box can be improved, so that more batteries can be installed in the box, thereby making the module-free battery pack more energy-efficient.

[0040] At present, in order to make the structure of the module-free battery pack stable and reliable, the structural adhesive between the battery and the box has a large adhesion, and the tensile and shear strength of the structural adhesive is greater than 8MPa. Although this can make the connection between the battery and the box reliable, when the battery needs to be disassembled, due to the excessive tensile and shear strength of the structural adhesive, the battery needs to be disassembled in a destructive way, making it difficult to remove the battery from the box without damage.

[0041] In the battery pack proposed in the present application, the battery pack is arranged in a box, and the box can serve the purpose of protecting the battery pack. The partition is arranged between the bottom wall of the battery pack and the bottom wall of the cavity of the box, and the battery pack and the partition are bonded by a structural adhesive layer, and the partition and the box are bonded by a soluble adhesive layer, so that the battery pack can be bonded and fixed to the box through the partition. The part where the bottom wall of the battery pack and the partition are misaligned is bonded to the box through the structural adhesive layer, so that the bonding and fixing area between the battery pack and the box is larger, and the bonding effect is more reliable. The partition and the box are bonded by a soluble adhesive layer, and the partition and the box can be separated by adding a dissolving liquid to the soluble adhesive layer, so that the edge of the battery pack can be easily separated from the box. In this way, by tilting the edge of the partition set on the battery pack, the part between the battery pack and the box bonded by the structural adhesive layer can be easily separated, so that the battery pack can be easily disassembled.

[0042] In the automobile proposed in the present application, since the above-mentioned battery pack is applied, the battery pack is easy to disassemble and maintain, thereby reducing the maintenance cost of the automobile.

[0043] The battery pack and the vehicle provided in this application are described in detail below in conjunction with specific embodiments.

[0044] The present application embodiment proposes a battery pack, referring to Figures 1 to 4As shown, it includes a box body 100, a battery pack 200 and a partition 300. The battery pack can be used in a car, and of course can also be used in other electrical devices, which is not limited in this application.

[0045] Among them, the box body 100 is the basic component of the battery pack of the present application. The box body 100 can provide a mounting base for at least some of the other components of the battery pack and protect at least some of the other components. The box body 100 can be made of metal material, so that the box body 100 has better structural strength, thereby making the durability and reliability of the box body 100 better. Of course, the box body 100 can also be made of polymer material, so that the box body 100 has a certain structural strength and is relatively light in weight.

[0046] The box body 100 has a cavity 140, and the cavity 140 in the box body 100 can be used to install at least some other components of the battery pack. The box body 100 includes a bottom plate 110, a frame 120 and an upper cover (not shown in the figure). The bottom plate 110 is a plate-like structural member, and the frame 120 is arranged at the edge of the bottom plate 110 along the circumference of the bottom plate 110. The upper cover is arranged opposite to the bottom plate 110, and the upper cover is connected to the frame 120 so that the frame 120 can be supported on the upper cover. The bottom plate 110, the frame 120 and the upper cover can be arranged to form the cavity 140 of the box body 100.

[0047] The battery pack 200 is disposed in the cavity 140 of the box body 100. Specifically, the battery pack 200 can be placed on the bottom plate 110 so that the bottom plate 110 can support the battery pack 200. The upper cover is opposite to the bottom plate 110 so that the upper cover and the bottom plate 110 can limit the battery pack 200 in the height direction of the battery pack 200 to prevent the battery pack 200 from shaking in the height direction. The frame 120 can limit the battery pack 200 in the horizontal direction, so that the battery pack 200 can be limited in all directions when it is disposed in the box body 100, so that the battery pack 200 remains stable.

[0048] The battery pack 200 includes a plurality of battery cells 210, which can be stacked on the bottom plate 110 along the thickness direction of the battery cells 210, and the plurality of battery cells 210 are electrically connected so that the plurality of battery cells 210 can output electric energy at the same time. The plurality of battery cells 210 are stacked along the thickness direction of the battery cells 210, so that the structure of the battery pack 200 is relatively more compact. Adjacent battery cells 210 can be bonded by an adhesive layer so that adjacent battery cells 210 can be fixed to each other. In this way, the plurality of battery cells 210 can be relatively fixed to form a battery pack 200 with a stable and reliable overall structure, so that the overall rigidity of the battery pack 200 is better. The battery cells 210 are fixed by the adhesive layer, so that the battery cells 210 do not need to be fixed by other frame structures, so that the structure of the battery pack 200 is relatively more compact and the weight is relatively lighter. At the same time, the space of the cavity 140 of the box 100 can be fully utilized, so that more battery packs 200 can be installed in the box 100.

[0049] The partition 300 is arranged between the bottom wall of the battery pack 200 and the bottom wall of the cavity 140 of the box 100, that is, the partition 300 is located between the battery pack 200 and the bottom plate 110. The partition 300 is also located at the edge of the battery pack 200, and the edge of the bottom wall of the battery pack 200 is bonded to the partition 300 through the structural adhesive layer 400. The structural adhesive layer 400 has a strong bonding effect, and has large pulling and shearing strengths, so that the fixing effect of the battery pack 200 and the bottom plate 110 is stable and reliable. The structural adhesive layer 400 can specifically use thermal conductive adhesive. The part of the bottom wall of the battery pack 200 that is misaligned with the partition 300 is also bonded to the bottom plate 110 through the structural adhesive layer 400, so that the bonding area of ​​the battery pack 200 and the box 100 is larger, thereby making the fixing effect of the battery pack 200 and the box 100 stable and reliable. The partition 300 is bonded to the bottom wall of the cavity 140 of the box body 100 by the soluble adhesive layer 500, so that the partition 300 can be fixed to the box body 100, so that the edge portion of the battery pack 200 can be fixed to the box body 100 through the partition 300, so that the various parts of the bottom wall of the battery pack 200 can be directly or indirectly fixed to the bottom plate 110 of the box body 100, so that the effect of fixing the battery pack 200 in the box body 100 is stable and reliable.

[0050] It should be understood that the characteristic of the soluble gel layer 500 is that after mixing with the corresponding dissolving liquid, the soluble gel layer 500 can be dissolved, so that the soluble gel layer 500 no longer has an adhesive effect. Although the structural adhesive layer 400 has large pulling and shear strengths, the peeling strength is relatively small, that is, it is difficult to separate the battery pack 200 from the bottom plate 110 of the box body 100 by applying a force to the battery pack 200 away from the bottom plate 110 of the box body 100. Therefore, when it is necessary to remove the battery pack 200 from the box body 100, the soluble gel layer 500 can be dissolved by injecting the corresponding dissolving liquid into the soluble gel layer 500 between the partition 300 and the bottom plate 110 of the box body 100, so that the partition 300 and the bottom wall of the box body 100 are no longer bonded, and accordingly, the edge of the battery pack 200 can be separated from the bottom plate 110 of the box body 100. Subsequently, another lifting tool 600 can be inserted into the space between the edge of the battery pack 200 and the bottom plate 110 of the box body 100. The lever principle can be used to conveniently peel off the portion of the battery pack 200 connected to the box body 100 through the structural adhesive layer 400, so that the bottom wall of the battery pack 200 can be completely separated from the bottom plate 110 of the box body 100, thereby achieving the purpose of non-destructive disassembly of the battery pack 200 from the box body 100.

[0051] By setting the partition 300 to be bonded to the bottom plate 110 of the box 100 through the soluble gel layer 500, the battery pack 200 and the soluble gel layer 500 can be separated by the partition 300. When the dissolving liquid is injected into the soluble gel layer 500, the partition 300 can separate the dissolving liquid so that the dissolving liquid does not contact the battery pack 200, thereby protecting the battery pack 200 and further reducing the risk of damage to the battery pack 200 when it is removed from the box 100. The soluble gel layer 500 can be made of double-sided tape, and the dissolving liquid can be alcohol.

[0052] In some embodiments, reference Figure 1 and Figure 4 As shown, the partition 300 of the present application can extend along the stacking direction of the multiple battery cells 210 in the battery pack 200, and the multiple battery cells 210 are all arranged on the partition 300. Specifically, the same side edges of the multiple battery cells 210 are all arranged on the partition 300, so that the partition 300 can support the multiple battery cells 210. In this way, the multiple battery cells 210 can be reliably connected to the bottom wall of the box body 100 through the partition 300, so that the connection between the battery pack 200 and the box body 100 is more reliable.

[0053] In addition, after the soluble glue layer 500 between the partition 300 and the bottom plate 110 of the box body 100 is dissolved and removed, the lifting tool 600 can be used to apply force to the edges of multiple battery cells 210, so that the battery pack 200 as a whole can be more conveniently separated from the box body 100. It can also avoid the situation where some battery cells 210 are subjected to force while some battery cells 210 are not subjected to force, resulting in separation between the battery cells 210, so that the integrity of the battery pack 200 after being removed from the box body 100 is better.

[0054] In some embodiments, reference Figure 1 and Figure 2 As shown, the number of battery packs 200 in the present application can be set to multiple, and multiple battery packs 200 can also be electrically connected, specifically connected in series. Multiple battery packs 200 are all arranged in the cavity 140 of the box 100, so that the battery pack of the present application has a larger power supply and a better power supply effect. Specifically, the box 100 can also be provided with a partition beam 130. Among them, the partition beam 130 can be arranged in the box 100, and the partition beam 130 can divide the internal space of the box 100 into multiple relatively small spaces. The partition beam 130 is specifically arranged in the cavity 140 of the box 100 to divide the cavity 140 into multiple sub-cavities 141. Multiple battery packs 200 can be respectively arranged in multiple sub-cavities 141, so that the partition beam 130 can separate the multiple battery packs 200, so that the multiple battery packs 200 can be avoided from directly contacting each other, so as to avoid the multiple battery packs 200 from affecting each other.

[0055] The plurality of battery packs 200 may be distributed along a first direction and a second direction, and the first direction is perpendicular to the second direction, so that the plurality of battery packs 200 may be distributed in a matrix. Specifically, the first direction may be the length direction of the box 100, that is, Figure 1 and Figure 4 The second direction may be the X direction of the box 100, that is, Figure 1 and Figure 4 In the Y direction, multiple battery packs 200 can make full use of the space of the cavity 140 of the box 100 to make the battery pack structure more compact. The number of partitions 300 can also be multiple, and the number of partitions 300 can match the number of battery packs 200, that is, the edge of each battery pack 200 can be bonded to the corresponding partition 300 through the structural adhesive layer 400, and each partition 300 is bonded to the bottom plate 110 of the box 100 through the soluble adhesive layer 500, so that multiple battery packs 200 can be easily removed from the box 100.

[0056] Of course, the number of the partitions 300 can also be set to be greater than the number of the battery packs 200, so that at least some of the battery packs 200 have a plurality of corresponding partitions 300. Specifically, the partitions 300 can be set at the edges of both sides of the battery pack 200, so that both sides of the edges of the battery pack 200 are bonded to the partitions 300 through the structural adhesive layer 400, and the partitions 300 on both sides of the battery pack 200 are bonded to the box 100 through the soluble adhesive layer 500, so that the battery pack 200 can be more conveniently removed from the box 100.

[0057] In some embodiments, reference Figures 1 to 3 As shown, the partition 300 in the present application can be arranged on a side of the battery pack 200 adjacent to the frame 120 of the box body 100, so that the partition 300 can be adjacent to the inner wall of the cavity 140 of the box body 100, so that the lifting tool 600 can be conveniently inserted from the frame 120 of the box body 100 into the gap between the edge of the battery pack 200 and the bottom plate 110 of the box body 100 to lift and separate the battery pack 200 from the box body 100.

[0058] In some embodiments, reference Figures 1 to 3 As shown, the partition 300 in the present application can be set to have a gap with the frame 120 of the box body 100, so that the partition 300 and the side wall of the cavity 140 have a gap, so that the dissolving liquid can be injected into the gap space between the partition 300 and the frame 120, so that the dissolving liquid can dissolve the soluble gel layer 500 between the partition 300 and the bottom plate 110. The battery pack 200 and the frame 120 also have a gap, so that the battery pack 200 and the side wall of the cavity 140 have a gap. The gap area between the battery pack 200 and the frame 120 is connected to the gap area between the partition 300 and the frame 120, so that the dissolving liquid can be injected into the gap area from the top side of the box body 100, so that the soluble gel layer 500 can be dissolved and removed more conveniently.

[0059] Of course, it should be noted that the gap size between the battery pack 200 and the frame 120 should be set smaller, and the gap size between the partition 300 and the frame 120 should also be set smaller, so as to make the space utilization rate in the box 100 higher.

[0060] In some embodiments, reference 1 to Figure 3As shown, the frame 120 and the bottom plate 110 of the box 100 of the present application can be set at an angle greater than 90 degrees, and the frame 120 is tilted in the direction away from the battery pack 200. In this way, when the dissolving liquid is injected into the gap between the partition 300 and the frame 120, the dissolving liquid can flow along the frame 120 toward the outer wall of the battery pack 200, and the frame 120 can play a role in guiding the dissolving liquid, so that the dissolving liquid can flow toward the soluble gel layer 500 between the partition 300 and the bottom plate 110, so that the contact effect between the dissolving liquid and the soluble gel layer 500 is better, so that the dissolving liquid has a better dissolving effect on the soluble gel layer 500.

[0061] When injecting the dissolving liquid into the soluble gel layer 500, the dissolving liquid can be poured onto the side wall of the frame 120 facing the battery pack 200, thereby preventing the dissolving liquid from splashing and damaging the battery pack 200. The angle between the frame 120 and the bottom plate 110 can be specifically set to 110 degrees to 135 degrees, so that the dissolving liquid flows along the frame 120 toward the outer wall of the battery pack 200 at a faster rate and relatively smoothly.

[0062] In some embodiments, reference Figure 3 As shown, the partition 300 of the present application can be configured to include a bearing portion 310 and a side stop portion 320, and the bearing portion 310 is connected to the side stop portion 320. The bearing portion 310 is located between the bottom wall of the battery pack 200 and the bottom plate 110 of the box 100, the battery pack 200 is bonded to the bearing portion 310 through a structural adhesive layer 400, and the bearing portion 310 is bonded to the bottom plate 110 of the box 100 through a soluble adhesive layer 500. The side stop portion 320 is located between the side wall of the battery pack 200 and the frame 120, and the side stop portion 320 can separate at least part of the side wall of the battery pack 200 from the frame 120. There is a gap between the side blocking portion 320 and the frame 120. When the dissolving liquid is poured into the gap between the partition 300 and the frame 120, the dissolving liquid can be poured into the gap between the side blocking portion 320 and the frame 120. In this way, the dissolving liquid can flow to the soluble gel layer 500, and the side blocking portion 320 can block the dissolving liquid so that the dissolving liquid will not contact the battery pack 200, thereby protecting the battery pack 200.

[0063] In some embodiments, reference Figure 3 As shown, the connection between the bearing portion 310 and the side blocking portion 320 is adjacent to the connection between the bottom plate 110 and the frame 120, so that the bearing portion 310 and the side blocking portion 320 can be relatively closer to the frame 120, thereby reducing the gap between the bearing portion 310 and the side blocking portion 320 and the frame 120. In this way, when the dissolving liquid is poured onto the side wall of the frame 120 facing the battery pack 200, the dissolving liquid can flow to the soluble gel layer 500 more efficiently to dissolve the soluble gel layer 500.

[0064] In some embodiments, reference Figure 3 As shown, the side block 320 and the bearing portion 310 of the present application can also be arranged at an angle greater than 90 degrees, and the side block 320 is arranged in an inclined direction away from the battery pack 200. In this way, the side block 320 can be inclined toward the frame 120, and the gap between the side block 320 and the frame 120 can be set relatively small, so that the dissolved liquid will eventually flow to the soluble gel layer 500.

[0065] Based on the above battery pack, an embodiment of the present application also proposes a car, including the above battery pack, which can be electrically connected to a battery power system, such as a motor, to provide electrical energy for the car.

[0066] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned implementation modes, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned implementation modes can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation modes of the present application.

Claims

1. A battery pack, characterized in that: include: The box body (100) has a containing cavity (140); A battery pack (200) is disposed in the housing (140); A partition (300) is arranged between the bottom wall of the battery pack (200) and the bottom wall of the cavity (140), and the partition (300) is located at the edge of the battery pack (200), the battery pack (200) and the partition (300) are bonded via a structural adhesive layer (400), and the partition (300) and the box (100) are bonded via a soluble adhesive layer (500); The portion where the bottom wall of the battery pack (200) is misaligned with the partition (300) is bonded to the bottom wall of the cavity (140) via the structural adhesive layer (400).

2. The battery pack according to claim 1, characterized in that: The battery pack (200) comprises a plurality of battery cells (210), the plurality of battery cells (210) are stacked along the thickness direction of the battery cells (210), the partition (300) extends along the stacking direction of the plurality of battery cells (210), and the edges of the plurality of battery cells (210) are bonded to the partition (300) via the structural adhesive layer (400).

3. The battery pack according to claim 2, characterized in that: The battery packs (200) and the partitions (300) are provided in a plurality, the plurality of battery packs (200) are arranged in the cavity (140) along a first direction and a second direction, the first direction and the second direction are perpendicular to each other, and the plurality of partitions (300) are correspondingly bonded to the plurality of battery packs (200).

4. The battery pack according to claim 3, characterized in that: The box body (100) comprises a bottom plate (110), a frame (120) and a partition beam (130); the frame (120) is arranged at the edge of the bottom plate (110) along the circumference of the bottom plate (110); the partition beam (130) is arranged on the bottom plate (110) and both ends of the partition beam (130) are connected to the frame (120); the partition beam (130) divides the containing cavity (140) into a plurality of sub-cavities (141); and a plurality of battery packs (200) are respectively arranged in the plurality of sub-cavities (141).

5. The battery pack according to claim 4, characterized in that: The plurality of partitions (300) are all located on a side of the battery pack (200) adjacent to the frame (120), and a gap exists between the partitions (300) and the battery pack (200) and the frame (120).

6. The battery pack according to claim 5, characterized in that: The frame (120) and the bottom plate (110) are arranged at an angle greater than 90 degrees, and the frame (120) is inclined in a direction away from the side wall of the battery pack (200).

7. The battery pack according to any one of claims 4 to 6, characterized in that: The partition (300) comprises a bearing portion (310) and a side blocking portion (320), wherein the bearing portion (310) is located between the bottom wall of the battery pack (200) and the bottom plate (110), and the side blocking portion (320) is connected to the bearing portion (310), and the side blocking portion (320) is located between the side wall of the battery pack (200) and the frame (120).

8. The battery pack according to claim 7, characterized in that: The connection between the bearing portion (310) and the side blocking portion (320) is adjacent to the connection between the bottom plate (110) and the frame (120), and a gap exists between the side blocking portion (320) and the frame (120).

9. The battery pack according to claim 8, characterized in that: The side blocking portion (320) and the bearing portion (310) are arranged at an angle greater than 90 degrees, and the side blocking portion (320) is inclined toward the frame (120).

10. An automobile, characterized in that: A battery pack comprising the battery pack as claimed in any one of claims 1 to 9.

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