Battery cell assembly, battery device and electric equipment

Abstract

The utility model relates to a battery cell assembly, a battery device and electric equipment, the battery cell assembly comprises a battery cell and a mounting bracket, the mounting bracket is connected to the battery cell and is provided with at least one mounting part, and the battery cell is suitable for being connected with a box body of the battery device through the mounting part. According to the technical scheme, a stacking tool and a pressure maintaining tool are not needed in the assembling process of the battery cell assembly provided by the invention, so that the working procedure duration of mass production and packaging is effectively shortened, the mass production efficiency is improved, and the battery cell assembly has maintainability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of batteries, and particularly, to a battery cell assembly, a battery device, and an electrical device using the same. Background Art

[0002] In the related art, battery cells in a battery pack are usually fixedly installed on the bottom plate of a tray by an adhesive method. When using this method, it is necessary to first apply glue in the length direction of the battery cell, then use a stacking tooling to assist in fixing, and then use a pressure maintaining tooling to press the glue. However, such an operation process is very cumbersome, with low efficiency and poor maintainability. Summary of the Utility Model

[0003] The purpose of the present disclosure is to provide a battery cell assembly, a battery device, and an electrical device using the same. During the assembly process of the battery cell assembly, no stacking tooling and pressure maintaining tooling are required, effectively shortening the process duration of mass production packaging, improving the mass production efficiency, and having maintainability.

[0004] To achieve the above purpose, the present disclosure provides a battery cell assembly, including a battery cell and a mounting bracket. The mounting bracket is connected to the battery cell and is provided with at least one mounting portion. The battery cell is adapted to be connected to a box body of a battery device through the mounting portion.

[0005] Optionally, at least two mounting brackets are provided. At least two mounting brackets are respectively arranged on two sides in the length direction of the battery cell.

[0006] Optionally, two groups of mounting brackets are provided. Each group of mounting brackets includes two mounting brackets. The two mounting brackets are respectively arranged at two ends of the battery cell in the height direction of the battery cell.

[0007] Optionally, the mounting bracket includes a mounting plate and two connecting plates. The two connecting plates are arranged oppositely and are respectively connected to opposite sides of the mounting plate. The mounting plate is provided with the mounting portion and is connected to the battery cell through the connecting plates.

[0008] Optionally, the battery cell has opposite first and second surfaces. The mounting plate protrudes from the first surface or the second surface to be adapted to fit with the box body.

[0009] Based on the above technical solutions, the present disclosure further provides a battery device. The battery device includes a box body and the above battery cell assembly. The battery cell assembly is connected to the box body through the mounting bracket.

[0010] Optionally, the box body includes a first cold plate and a tray, the tray and the first cold plate are respectively arranged on opposite sides of the plurality of battery cells, and the battery cells are connected to the first cold plate and / or the tray through the mounting portion.

[0011] Optionally, the mounting bracket is respectively connected to the first cold plate and the tray through a first fastener and a second fastener.

[0012] Optionally, the battery device further includes a first insulating and heat-conducting buffer member disposed between the first cold plate and the battery cell, and / or the battery device further includes a second insulating and heat-conducting buffer member disposed between the tray, the second cold plate and the battery cell.

[0013] Optionally, there are a plurality of the first insulating and heat-conducting buffer members, and the plurality of first insulating and heat-conducting buffer members are spaced apart in a direction perpendicular to the arrangement direction of the battery cells, and each first insulating and heat-conducting buffer member extends along the arrangement direction of the battery cells; and / or, there are a plurality of the second insulating and heat-conducting buffer members, and the plurality of second insulating and heat-conducting buffer members are spaced apart in a direction perpendicular to the arrangement direction of the battery cells, and each second insulating and heat-conducting buffer member extends along the arrangement direction of the battery cells.

[0014] Optionally, a thermally conductive structural adhesive is selectively provided between two adjacent first insulating and heat-conducting buffer members; and / or, a thermally conductive structural adhesive is selectively provided between two adjacent second insulating and heat-conducting buffer members.

[0015] Optionally, the first insulating and heat-dissipating buffer member and the second insulating and heat-dissipating buffer member are configured as silicone thermally conductive pads.

[0016] Optionally, the battery device further includes two expansion beams, the two expansion beams are spaced apart on the tray, the battery cells are located between the two expansion beams and are arranged in a direction perpendicular to the extension direction of the expansion beams, and the first cold plate is connected to the expansion beam.

[0017] Based on the above technical solutions, the present disclosure further provides an electrical device including the above battery device.

[0018] Through the above technical solution, in the cell assembly provided by the present disclosure, by connecting a mounting bracket to the cell and providing at least one mounting portion, the cell is connected to the box body of the battery device through the mounting portion, so as to achieve the mounting and fixing between the cell and the box body of the battery device, avoiding the stacking auxiliary process and the pressure maintaining and gluing process required when using the gluing method. Therefore, the operation is simple and the process time is shorter, which can effectively shorten the process duration of mass production packaging and improve the mass production efficiency. In addition, the fixing method through the mounting bracket enables each cell to be independently installed and disassembled, avoiding the risk of scrapping the entire battery device due to the scrapping of individual cells, so it has good maintainability.

[0019] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0021] Figure 1 is a schematic structural diagram of a battery device provided by an exemplary embodiment of the present disclosure;

[0022] Figure 2 is Figure 1 the A-A cross-sectional view of

[0023] Figure 3 is Figure 2 the partial enlarged view at C in

[0024] Figure 4 is Figure 2 the partial enlarged view at D in

[0025] Figure 5 is Figure 1 the B-B cross-sectional view of

[0026] Figure 6 is Figure 5 the partial enlarged view at E in

[0027] Figure 7 is Figure 5 the partial enlarged view at F in

[0028] Figure 8 is a schematic assembly structure diagram of a cell and a mounting bracket provided by an exemplary embodiment of the present disclosure;

[0029] Figure 9 is another schematic assembly structure diagram of a cell and a mounting bracket provided by an exemplary embodiment of the present disclosure;

[0030] Figure 10 FIG. Figure 10 is another schematic structural view of the battery device provided by the exemplary embodiment of the present disclosure, wherein the first cold plate is removed.

[0031] Description of Reference Numerals

[0032] 1 - First cold plate; 2 - Tray; 21 - Expansion beam; 3 - Battery cell; 31 - First surface; 32 - Second surface; 4 - Mounting bracket; 41 - Mounting plate; 411 - Mounting portion; 42 - Connecting plate; 5 - First fastener; 6 - Second fastener; 7 - First insulating and heat-conducting buffer member; 8 - Second insulating and heat-conducting buffer member; 9 - Heat-conducting structural adhesive; 10 - Second cold plate. Detailed Embodiment

[0033] The following details the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present disclosure, and are not used to limit the present disclosure.

[0034] In the present disclosure, the terms "first", "second", etc. are used to distinguish one element from another, and do not have sequentiality and importance. Among them, the length direction of the battery device corresponds to Figure 1 , Figure 2 and Figure 10 the left-right direction of the drawing in the figure, and the width direction of the battery device corresponds to Figure 1 and Figure 10 the front-back direction of the drawing in the figure. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements. The above definitions are only for explaining and illustrating the present disclosure, and should not be construed as a limitation of the present disclosure.

[0035] The present disclosure provides a battery cell assembly. As shown in Figure 8 and Figure 9 the battery cell assembly includes a battery cell 3 and a mounting bracket 4. The mounting bracket 4 is connected to the battery cell 3 and is provided with at least one mounting portion 411. The battery cell 3 is adapted to be connected to the box body of the battery device through the mounting portion 411.

[0036] Through the above technical solution, in the battery cell assembly provided by the present disclosure, by connecting the mounting bracket 4 to the battery cell 3 and providing at least one mounting portion 411, the battery cell 3 is connected to the box body of the battery device through the mounting portion 411, so as to realize the mounting and fixing between the battery cell 3 and the box body of the battery device, avoiding the stacking auxiliary process and the pressure maintaining and gluing process required when using the gluing method for fixing. Therefore, the operation is simple and the process time is shorter, which can effectively shorten the process duration of mass production packaging and improve the mass production efficiency. In addition, the fixing method through the mounting bracket 4 enables each battery cell 3 to be independently installed and disassembled, avoiding the risk of the entire battery device being scrapped due to the scrapping of an individual battery cell 3. Therefore, it has good maintainability.

[0037] In the exemplary embodiments provided by the present disclosure, there may be at least two mounting brackets 4. The at least two mounting brackets 4 are respectively arranged on both sides in the length direction of the battery cell 3. Through such an arrangement, when the battery cell 3 is mounted and fixed on the box body of the battery device (such as the first cold plate 1 or the tray 2), the connection strength between the battery cell 3 and the box body of the battery device can be improved by the at least two mounting brackets 4 arranged on both sides of the battery cell 3, so as to be more firmly and reliably fixed on the box body of the battery device. Exemplarily, the mounting bracket 4 may be provided with two, three or four. Among them, when there are two mounting brackets 4, there are the following three possible implementation manners for the two mounting brackets 4:

[0038] In the first possible implementation manner, the two mounting brackets 4 may be symmetrically arranged on both sides in the length direction of the battery cell 3. For example, the two mounting brackets 4 may be simultaneously arranged close to the top side of the battery cell 3 (i.e., the side of the battery cell 3 close to the first cold plate 1). At this time, the battery cell 3 is connected to different positions of the first cold plate 1 through the two mounting brackets 4 respectively, or may be simultaneously arranged close to the bottom side of the battery cell 3 (i.e., the side of the battery cell 3 close to the tray 2). At this time, the battery cell 3 is connected to different positions of the tray 2 through the two mounting brackets 4 respectively.

[0039] In the second possible implementation manner, the two mounting brackets 4 may be simultaneously arranged on the same side in the length direction of the battery cell 3. For example, the two mounting brackets 4 may be simultaneously arranged on Figure 1 the front side or the rear side of the battery cell 3 as shown in. At this time, the battery cell 3 is connected to the corresponding positions of the first cold plate 1 and the tray 2 through the two mounting brackets 4 respectively.

[0040] In the third possible implementation manner, the two mounting brackets 4 may be staggeredly arranged on both sides in the length direction of the battery cell 3. For example, one mounting bracket 4 is arranged close to the top side of the battery cell 3, and the other mounting bracket 4 is arranged close to the bottom side of the battery cell 3. At this time, the battery cell 3 is connected to different positions on the first cold plate 1 and the tray 2 through the two mounting brackets 4 respectively.

[0041] Among them, when two sets of mounting brackets 4 are provided, as shown in Figure 8 , each set of mounting brackets 4 may include two mounting brackets 4, and the two mounting brackets 4 are respectively arranged at two ends of the battery cell 3 along the height direction of the battery cell 3 (that is, Figure 2 , Figure 5 and Figure 9 the up-and-down direction of the drawing in ), so that through the arrangement of the two mounting brackets 4, the battery cell 3 can be respectively and simultaneously connected to different structures on the box body of the battery device through their respective mounting brackets 4. For example, the battery cell 3 is fixedly connected to the first cold plate 1 through one mounting bracket 4, and is fixedly connected to the tray 2 through the other mounting bracket 4.

[0042] In the exemplary embodiments provided by the present disclosure, the mounting bracket 4 can be constructed in any suitable manner, and the present disclosure does not limit this. Optionally, in some embodiments, the mounting bracket 4 can be constructed as a mounting plate 41. In this case, the structure of the mounting bracket 4 is simple, but the structural strength is relatively low, and it is suitable for the installation and fixation of the battery cell 3 with a relatively short length. In other embodiments, the mounting bracket 4 may also include a mounting plate 41 and two connecting plates 42. As shown in Figure 8 and Figure 9 , the two connecting plates 42 are arranged oppositely and are respectively connected to opposite sides of the mounting plate 41. The mounting plate 41 is provided with a mounting portion 411 and is connected to the battery cell 3 through the connecting plates 42. In this case, the arrangement of the two connecting plates 42 can enhance the structural strength of the mounting plate 41. Therefore, even for a battery cell 3 with a relatively long length, the mounting bracket 4 with this structure can meet the reliable installation and fixation between the battery cell 3 and the box body of the battery device (such as the first cold plate 1 or the tray 2).

[0043] In the exemplary embodiments provided by the present disclosure, as shown in Figure 8 and Figure 9 , the battery cell 3 may have opposite first surface 31 and second surface 32, and the mounting plate 41 protrudes from the first surface 31 or the second surface 32 to be suitable for fitting with the box body. In this way, when the battery cell 3 is fixedly installed to the corresponding structure of the box body (such as the first cold plate 1 or the tray 2) through the mounting plate 41, an installation space can be reserved between the first surface 31 or the second surface 32 and the corresponding structure of the box body, so as to arrange the required components in this reserved space.

[0044] Exemplarily, as shown in Figures 5 to 9As shown, when the corresponding structures of the box body are the first cold plate 1 and the tray 2, and the required component is the insulating heat-conducting buffer, an installation space can be reserved between the first surface 31 and the first cold plate 1 or between the second surface 32 and the tray 2, and the insulating heat-conducting buffer is arranged in this installation space. In this way, on the one hand, the heat transfer of the battery cell 3 can be realized, on the other hand, the reliable insulation between the battery cell 3 and the first cold plate 1 or the tray 2 can be realized, and in addition, the rigid contact between the battery cell 3 and the first cold plate 1 or the tray 2 can be avoided. Among them, the relevant content about the insulating heat-conducting buffer will be described in detail below.

[0045] On the basis of the above technical solution, the present disclosure also provides a battery device, which includes a box body and the above-mentioned battery cell assembly, and the battery cell assembly is connected to the box body through the mounting bracket 4. Among them, the relevant content about the battery cell assembly and the connection between the battery cell assembly and the box body has been described in detail in the foregoing content. Therefore, to avoid repetition, the present disclosure will not elaborate herein.

[0046] In the exemplary embodiment provided by the present disclosure, referring to Figures 1 to 10 As shown, the box body includes a first cold plate 1 and a tray 2, the battery cell assembly includes a battery cell 3 and a mounting bracket 4, the mounting bracket 4 is connected to the battery cell 3 and is provided with at least one mounting portion 411, the tray 2 and the first cold plate 1 are respectively arranged on opposite sides of the battery cell 3, and the battery cell 3 is connected to the first cold plate 1 and / or the tray 2 through the mounting portion 411. Through such a setting, the installation and fixation between the battery cell 3 and the first cold plate 1 or the tray 2 in the box body can be realized, and the stacking auxiliary process and the pressure-holding glue application process required when using the glue application method for fixation can be avoided. Therefore, the operation is simple and the process time is shorter, which can effectively shorten the process duration of mass production packaging and improve the mass production efficiency. In addition, the fixing method through the mounting bracket 4 can also enable each battery cell 3 to be independently installed and disassembled, avoiding the risk of the entire battery device being scrapped due to the scrapping of an individual battery cell 3. Therefore, it has good maintainability.

[0047] In the exemplary embodiment provided by the present disclosure, referring to Figure 3 、 Figure 4 、 Figure 6 and Figure 7As shown, the mounting bracket 4 can be connected to the first cold plate 1 and the tray 2 through the first fastener 5 and the second fastener 6 respectively. Among them, the first fastener 5 and the second fastener 6 can be any suitable fasteners, and the present disclosure does not limit this. Optionally, the first cold plate 1 can be provided with riveting holes through riveting nuts. At this time, the first fastener 5 can be configured as a riveting bolt that cooperates with the riveting holes; through holes can also be directly formed on the first cold plate 1. At this time, the first fastener 5 can be configured as a bolt and nut assembly that cooperates with the through holes; and the tray 2 can also be provided with riveting holes through riveting nuts. At this time, the second fastener 6 can be configured as a riveting bolt that cooperates with the riveting holes.

[0048] In the exemplary embodiment provided by the present disclosure, the battery device may further include a first insulating and heat-conducting buffer member 7 and a second insulating and heat-conducting buffer member 8. Among them, there are at least the following several possible implementation manners for the arrangement manners of the first insulating and heat-conducting buffer member 7 and the second insulating and heat-conducting buffer member 8:

[0049] In the first possible implementation manner, the first insulating and heat-conducting buffer member 7 is arranged between the first cold plate 1 and the battery cell 3. In this way, on the one hand, it can insulate the battery cell 3 and the first cold plate 1, and on the other hand, it can also achieve heat transfer between the first cold plate 1 and the battery cell 3. In addition, the setting of the first insulating and heat-conducting buffer member 7 can also avoid rigid contact between the battery cell 3 and the first cold plate 1.

[0050] In the second possible implementation manner, the second insulating and heat-conducting buffer member 8 is arranged between the tray 2 and the battery cell 3. In this way, on the one hand, it can insulate the battery cell 3 and the tray 2, and on the other hand, it can also achieve heat transfer between the tray 2 and the battery cell 3. In addition, the setting of the second insulating and heat-conducting buffer member 8 can also avoid rigid contact between the battery cell 3 and the tray 2.

[0051] In the third possible implementation manner, referring to Figure 6 、 Figure 7 and Figure 10 As shown, the first insulating and heat-conducting buffer member 7 can be arranged between the first cold plate 1 and the battery cell 3, and the second insulating and heat-conducting buffer member 8 can be arranged between the tray 2 and the battery cell 3. Among them, the functions and purposes of the settings of the first insulating and heat-conducting buffer member 7 and the second insulating and heat-conducting buffer member 8 have been clearly described in the previous two implementation manners. Therefore, to avoid repetition, the present disclosure will not elaborate here.

[0052] It should be noted that in the above embodiments, when the mounting bracket 4 in the battery device of the present disclosure adopts the structure described above, that is, when the mounting bracket 4 adopts the structure including the mounting plate 41 and the two connecting plates 42, for the convenience of installation, it can be set that the part of the mounting plate 41 protruding from the first surface 31 or the second surface 32 can adapt to the installation of the first insulating and heat-conducting buffer member 7 or the second insulating and heat-conducting buffer member 8, that is, it can be set that after the mounting bracket 4, the first insulating and heat-conducting buffer member 7 and the second insulating and heat-conducting buffer member 8 are installed, the surface of the mounting plate 41 is flush with the surface of the first insulating and heat-conducting buffer member 7 or the second insulating and heat-conducting buffer member 8.

[0053] In the above embodiments, to further improve the heat dissipation effect of the battery cell 3, a second cold plate 10 can be provided between the tray 2 and the second insulating and heat-conducting buffer member 8.

[0054] In the exemplary embodiments provided by the present disclosure, when there are multiple first insulating and heat-conducting buffer members 7 or multiple second insulating and heat-conducting buffer members 8, the multiple first insulating and heat-conducting buffer members 7 or the multiple second insulating and heat-conducting buffer members 8 can be arranged in any suitable manner. Exemplarily, there are three possible arrangement manners for the multiple first insulating and heat-conducting buffer members 7 or the multiple second insulating and heat-conducting buffer members 8:

[0055] In the first possible implementation manner, there can be multiple first insulating and heat-conducting buffer members 7, and the multiple first insulating and heat-conducting buffer members 7 are arranged at intervals in the direction perpendicular to the arrangement direction of the battery cells 3, and each first insulating and heat-conducting buffer member 7 extends along the arrangement direction of the battery cells 3.

[0056] In the second possible implementation manner, there can be multiple second insulating and heat-conducting buffer members 8, and the multiple second insulating and heat-conducting buffer members 8 are arranged at intervals in the direction perpendicular to the arrangement direction of the battery cells 3, and each second insulating and heat-conducting buffer member 8 extends along the arrangement direction of the battery cells 3.

[0057] In the third possible implementation manner, there can be multiple first insulating and heat-conducting buffer members 7, and the multiple first insulating and heat-conducting buffer members 7 are arranged at intervals in the direction perpendicular to the arrangement direction of the battery cells 3, and each first insulating and heat-conducting buffer member 7 extends along the arrangement direction of the battery cells 3. At the same time, there are multiple second insulating and heat-conducting buffer members 8, and the multiple second insulating and heat-conducting buffer members 8 are arranged at intervals in the direction perpendicular to the arrangement direction of the battery cells 3, and each second insulating and heat-conducting buffer member 8 extends along the arrangement direction of the battery cells 3.

[0058] Through the above three possible implementation manners, the number of the first insulating and heat-conducting buffer members 7 or the second insulating and heat-conducting buffer members 8 provided and their arrangement manners can be selected according to needs, so that the assembly of the battery device is more flexible. Exemplarily, two first insulating and heat-conducting buffer members 7 can be provided, and the two first insulating and heat-conducting buffer members 7 are arranged at intervals in a direction perpendicular to the arrangement direction of the battery cells 3; and two second insulating and heat-conducting buffer members 8 can be provided, and the two second insulating and heat-conducting buffer members 8 are arranged at intervals in a direction perpendicular to the arrangement direction of the battery cells 3.

[0059] In the exemplary embodiment provided by the present disclosure, a heat-conducting structural adhesive 9 can also be provided between the first insulating and heat-conducting buffer member 7 or the second insulating and heat-conducting buffer member 8. When the heat-conducting structural adhesive 9 is provided between the first insulating and heat-conducting buffer member 7 or the second insulating and heat-conducting buffer member 8, there can be the following three possible implementation manners:

[0060] In the first possible implementation manner, the heat-conducting structural adhesive 9 can be selectively provided between two adjacent first insulating and heat-conducting buffer members 7.

[0061] In the second possible implementation manner, the heat-conducting structural adhesive 9 can be selectively provided between two adjacent second insulating and heat-conducting buffer members 8.

[0062] In the third possible implementation manner, the heat-conducting structural adhesive 9 can be selectively provided between two adjacent first insulating and heat-conducting buffer members 7 and between two adjacent second insulating and heat-conducting buffer members 8.

[0063] In the above three possible implementation manners, whether to provide the heat-conducting structural adhesive 9 between two adjacent insulating and heat-conducting buffer members needs to be selected according to the length of a single battery cell 3 in the battery device. Specifically, when a single battery cell 3 in the battery device has a longer length, at least two insulating and heat-conducting buffer members can be provided along the length direction of the battery cells 3 in the battery device (i.e., the width direction of the battery device, corresponding to Figure 1 and Figure 10 the front-back direction in the drawing), and the heat-conducting structural adhesive 9 can be provided between the at least two insulating and heat-conducting buffer members. In this way, not only can the fixed connection between each battery cell 3 in the middle area of the battery device and the first cold plate 1 or the tray 2 be enhanced, so as to improve the overall structural strength of the battery device, but also the heat dissipation effect of each battery cell 3 in the battery device can be further improved. Among them, the heat-conducting structural adhesive 9 can be provided between two adjacent first insulating and heat-conducting buffer members 7 or between two adjacent second insulating and heat-conducting buffer members 8, that is, the first gap between two adjacent first insulating and heat-conducting buffer members 7 or the second gap between two adjacent second insulating and heat-conducting buffer members 8 can be used to pour the heat-conducting structural adhesive 9. It can be seen that the size of the first gap or the second gap determines the spreading thickness and spreading area of the heat-conducting structural adhesive 9, making the spreading process simpler and easier to implement.

[0064] Among them, the first insulating and heat-conducting buffer member 7 and the second insulating and heat-conducting buffer member 8 can be constructed in any suitable manner, and the present disclosure does not limit this. Optionally, the first insulating and heat-conducting buffer member 7 and the second insulating and heat-conducting buffer member 8 can be constructed as silica gel heat-conducting pads. In this way, the first insulating and heat-conducting buffer member 7 and the second insulating and heat-conducting buffer member 8 not only have good insulating and heat-conducting properties, but also have good resilience properties, which can avoid rigid contact between the battery cell 3 and the first cold plate 1 or the tray 2, thereby protecting the battery device.

[0065] In the exemplary embodiment provided by the present disclosure, referring to Figures 1 to 4 and Figure 10 as shown, the tray 2 may further include two expansion beams 21. The two expansion beams 21 are arranged on the tray 2 at intervals. The battery cell 3 is located between the two expansion beams 21 and is arranged along the direction perpendicular to the extension direction of the expansion beams 21. The first cold plate 1 is connected to the expansion beams 21. In this way, an installation space for the battery cell 3 can be formed between the two expansion beams 21, thereby facilitating the installation and fixation of the battery cell 3.

[0066] On the basis of the above technical solutions, the present disclosure further provides an electrical device including the above battery device. Here, the electrical device can be any suitable electrical device such as a mobile terminal, a portable device, and a vehicle (such as an electric vehicle or a hybrid vehicle), and the present disclosure does not limit this. Among them, the relevant content of the battery device has been described in detail in the foregoing content. To avoid repetition, the present disclosure will not elaborate herein.

[0067] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0068] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0069] Furthermore, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A battery cell assembly, characterized in that, It includes a battery cell and a mounting bracket. The mounting bracket is connected to the battery cell and is provided with at least one mounting portion. The battery cell is adapted to be connected to the box body of the battery device through the mounting portion.

2. The cell assembly according to claim 1, wherein There are at least two mounting brackets, and the at least two mounting brackets are respectively arranged on both sides in the length direction of the battery cell.

3. The cell assembly according to claim 2, wherein There are two groups of mounting brackets. Each group of mounting brackets includes two mounting brackets, and the two mounting brackets are respectively arranged at two ends of the battery cell in the height direction of the battery cell.

4. The battery cell assembly according to any one of claims 1-3, characterized in that, The mounting bracket includes a mounting plate and two connecting plates. The two connecting plates are arranged oppositely and are respectively connected to opposite sides of the mounting plate. The mounting plate is provided with the mounting portion and is connected to the battery cell through the connecting plates.

5. The cell assembly according to claim 4, wherein, The battery cell has opposite first and second surfaces. The mounting plate protrudes from the first surface or the second surface to be adapted to fit with the box body.

6. A battery device, characterized in that, The battery device includes a box body and the battery cell assembly according to any one of claims 1-5. The battery cell assembly is connected to the box body through the mounting bracket.

7. The battery device according to claim 6, characterized in that, The box body includes a first cold plate and a tray. The tray and the first cold plate are respectively arranged on opposite sides of a plurality of the battery cells. The battery cells are connected to the first cold plate and / or the tray through the mounting portion.

8. The battery device according to claim 7, characterized in that, The mounting brackets are respectively connected to the first cold plate and the tray through a first fastener and a second fastener.

9. The battery device according to claim 7, wherein The battery device further includes a first insulating and heat-conducting buffer member arranged between the first cold plate and the battery cell, and / or the battery device further includes a second insulating and heat-conducting buffer member arranged between the tray's second cold plate and the battery cell.

10. The battery device according to claim 9, wherein There are a plurality of the first insulating and heat-conducting buffer members. The plurality of first insulating and heat-conducting buffer members are arranged at intervals in a direction perpendicular to the arrangement direction of the battery cells, and each first insulating and heat-conducting buffer member extends along the arrangement direction of the battery cells. and / or, There are a plurality of the second insulating and heat-conducting buffer members. The plurality of second insulating and heat-conducting buffer members are arranged at intervals in a direction perpendicular to the arrangement direction of the battery cells, and each second insulating and heat-conducting buffer member extends along the arrangement direction of the battery cells.

11. The battery device according to claim 10, wherein, Optionally, a thermally conductive structural adhesive is provided between two adjacent first insulating and heat-conducting buffer members; and / or, Optionally, a thermally conductive structural adhesive is provided between two adjacent second insulating and heat-conducting buffer members.

12. The battery device according to claim 10, characterized in that, The first insulating and heat-conducting buffer member and the second insulating and heat-conducting buffer member are configured as silicone thermally conductive pads.

13. The battery device according to any one of claims 6-12, characterized in that, The battery device further includes two expansion beams. The two expansion beams are arranged on the tray at intervals. The battery cells are located between the two expansion beams and are arranged along a direction perpendicular to the extension direction of the expansion beams. The first cold plate is connected to the expansion beams.

14. An electrical device, characterized in that, It includes the battery device according to any one of claims 6-13.

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