Cooling device for a battery assembly, battery assembly and vehicle

Abstract

This disclosure provides a cooling device for a battery assembly, the cooling device comprising: a cooling plate extending longitudinally along a first direction, the cooling plate including a cooling outer tube for conducting coolant; wherein the cooling outer tube is formed by bending and closing a single sheet material. Furthermore, this disclosure also provides a battery assembly and a vehicle.

Description

Technical Field

[0001] This disclosure relates to a cooling device for a battery assembly, and also to a battery assembly having the cooling device and a vehicle having the battery assembly. Background Technology

[0002] As the power source for new energy vehicles, on-board batteries face numerous requirements, with safety being paramount. Current battery pack designs typically employ stringent waterproofing measures for the battery casing to prevent moisture or water from entering the battery and causing short circuits and fires. However, the internal components of the battery pack lack such protection, especially when the coolant in the battery thermal management system leaks, posing a risk of coolant leaks causing fires in the battery cell circuitry. Summary of the Invention

[0003] In view of the above-mentioned drawbacks, the technical problem to be solved by this disclosure is how to provide a battery component with higher safety.

[0004] To address the aforementioned technical problems, this disclosure provides a cooling device for battery modules. The cooling device includes a cooling plate extending longitudinally along a first direction, and the cooling plate includes a cooling outer tube for conducting coolant. The cooling outer tube is formed by bending and sealing a single sheet material. This allows for the manufacture of the cooling plate with a particularly simple and convenient processing technology. Furthermore, because the cooling outer tube is formed by bending and sealing a single sheet material, it is easy to achieve a uniform wall thickness. This uniform wall thickness not only improves corrosion resistance but also enhances the overall pressure-bearing consistency of the cooling device, effectively preventing coolant leakage due to localized fatigue damage, thereby ensuring the safety of the battery module. Additionally, since the cooling outer tube is formed by bending and sealing a single sheet material, a sacrificial layer can be pre-formed on one side of the sheet material before bending, effectively ensuring the thickness and uniformity of the sacrificial layer.

[0005] In one embodiment of the present disclosure, the plate is made of a metal composite material comprising a main layer and a brazing layer; wherein the individual plate is closed by brazing.

[0006] It was found that short-circuit fires in battery thermal management systems often originate from coolant leaks, which in turn are attributed to the cooling device being corroded by the coolant. Therefore, according to this disclosure, a metal composite material is creatively used in the cooling device that conducts coolant. Unlike traditional anti-corrosion coating technologies, metal composite materials are formed by metallurgically bonding multiple metals with different chemical and mechanical properties at the interface using composite technology. Unlike single metal materials, metal composite materials can have different physical and chemical properties in the thickness direction.

[0007] In one embodiment of the present disclosure, the plate is made of a metal composite material that also includes a sacrificial layer; wherein the sacrificial layer is located inside the cooling outer tube.

[0008] Since the cooling outer tube is formed by bending and sealing a single sheet, a sacrificial layer is pre-stitched on one side of the sheet before bending, which can effectively ensure the thickness and uniformity of the sacrificial layer, thereby further improving the corrosion resistance of the cooling outer tube.

[0009] In one embodiment of the present disclosure, the cooling plate further includes inner fins arranged in the outer cooling tube.

[0010] In one embodiment of the present disclosure, the inner fins are made of a metal composite material comprising a main layer and a sacrificial layer.

[0011] According to this disclosure, the metal composite material has a main layer and a sacrificial layer. Since the sacrificial layer is in contact with the coolant, it can react chemically with the coolant first during use, meaning the coolant corrodes the sacrificial layer first. The corrosion process occurs along the planar extension direction of the sacrificial layer, rather than along its thickness, which greatly delays the corrosion of the main layer of the cooling outer tube, thereby improving the service life of the cooling device and increasing the safety of the battery assembly. Alternatively, the inner fins can also be made of a metal composite material, which further delays the corrosion process of the cooling outer tube.

[0012] In one embodiment of the present disclosure, the sacrificial layer has a higher chemical corrosion potential relative to the coolant than the host layer.

[0013] In one embodiment according to this disclosure, the sacrificial layer has a smaller material thickness than the host layer. For example, the host layer may have a thickness of approximately 0.2 mm, while the sacrificial layer may have a thickness of approximately 0.05 mm.

[0014] In one embodiment of the present disclosure, the host layer comprises aluminum, and the sacrificial layer comprises an aluminum alloy having zinc.

[0015] Unlike the extrusion process traditionally used in cooling plate manufacturing, the components of the cooling plate according to this disclosure are manufactured by a bending process. Therefore, metal composite plates can be used to meet the requirements for sacrificial layers in cooling devices.

[0016] In one embodiment of the present disclosure, the sacrificial layer has a zinc content of at least 1.5% by mass.

[0017] In one embodiment according to this disclosure, the cooling outer tube has a circular-rectangular cross-section. Of course, in other feasible embodiments, the cooling outer tube may also have a rectangular, circular, or other cross-sections as needed, such as the external shape of the battery cell or the installation location of the cooling device.

[0018] In one embodiment of the present disclosure, the cooling outer tube has a joint portion extending in a first direction at the arc.

[0019] In one embodiment of this disclosure, the inner fins are constructed as corrugated plates and include alternating crests and troughs along a second direction perpendicular to the first direction. In this embodiment, the crests and troughs are located near or in contact with the inner wall of the cooling outer tube at their outer apexes, thereby dividing the cavity defined by the cooling outer tube into multiple regions, such as multiple parallel fluid channels extending along the first direction, for coolant conduction. This facilitates coolant flow around the surface, thereby improving cooling efficiency.

[0020] In one embodiment according to this disclosure, the cooling outer tube has a connector portion extending in a first direction on its lateral surface, wherein the connector portion protrudes to the trough of the inner fin. In other feasible embodiments, the connector portion may also be located at an arcuate bend in the cooling outer tube.

[0021] To address the aforementioned technical problem, this disclosure also provides a battery assembly, which includes a battery cell and the aforementioned cooling device.

[0022] In one embodiment of the present disclosure, the battery cell includes at least one cell, wherein the cell is in contact with at least one side of the cooling outer tube.

[0023] In one embodiment of the present disclosure, the battery cell has a hexahedral shape, and the cooling plate has planar sections in at least a portion of its area, wherein the wide side of the battery cell contacts the planar sections of the cooling plate.

[0024] In one embodiment of the present disclosure, a plurality of said cells are arranged on both sides of the cooling plate and are respectively aligned with each other in a thickness direction perpendicular to the first direction.

[0025] In one embodiment of the present disclosure, a plurality of the battery cells are arranged on one side of a cooling plate.

[0026] In one embodiment of the present disclosure, the battery cell has a cylindrical shape, and the cooling plate has an arcuate section in at least a portion of its area, wherein the circumferential surface of the battery cell is in contact with the arcuate section of the cooling plate.

[0027] In one embodiment of this disclosure, the cooling plate is corrugated, wherein a plurality of the battery cells are arranged on both sides of the cooling plate and are staggered relative to each other in a thickness direction perpendicular to a first direction. This arrangement maximizes the contact area between the battery cells and the cooling plate, thereby improving cooling efficiency.

[0028] In one embodiment of the present disclosure, the battery cell is bonded to the cooling plate by thermally conductive adhesive.

[0029] In addition, this disclosure also provides a vehicle that includes the aforementioned battery assembly.

[0030] The vehicle can be a plug-in hybrid electric vehicle, a battery electric vehicle, or other types of motor vehicles. Based on the above, the vehicle can perform the functions of the cooling device or battery assembly as described above, and has the advantages described above. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention, and are not intended to limit the present invention.

[0032] Figure 1 A perspective view of a battery assembly according to one embodiment of the present disclosure is shown schematically.

[0033] Figure 2 A perspective view of a cooling device according to one embodiment of the present disclosure is shown schematically;

[0034] Figure 3 schematically shown Figure 2 A perspective sectional view of the cooling device shown;

[0035] Figure 4 schematically shown Figure 2 A three-dimensional sectional view of the cooling outer tube of the cooling plate shown.

[0036] Figure 5 schematically shown Figure 2 A perspective sectional view of the inner fins of the cooling plate shown.

[0037] Figure 6 schematically shown Figure 2 A perspective sectional view of the cooling plate of the cooling device shown;

[0038] Figure 7 A schematic side view of the cooling outer tube of a cooling plate according to another embodiment of the present disclosure is shown.

[0039] Figure 8 A perspective view of a manifold of a cooling device according to one embodiment of the present disclosure is shown schematically.

[0040] Figure 9 A perspective view of a battery assembly according to another embodiment of the present disclosure is shown schematically.

[0041] Figure 10 A perspective view of a cooling device according to another embodiment of the present disclosure is shown schematically;

[0042] Figure 11 A perspective view of a battery assembly according to one embodiment of the present disclosure is shown schematically.

[0043] Figure 12 schematically shown Figure 11 A bottom view of the battery assembly shown;

[0044] Figure 13 A perspective view of a cooling device according to another embodiment of the present disclosure is shown schematically;

[0045] Figure 14 A perspective view of a cooling device according to another embodiment of the present disclosure is shown schematically. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] The term "one embodiment" or "implementation" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the present invention and for 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 the present invention.

[0048] Figure 1 A battery assembly according to one embodiment of the present disclosure is illustrated schematically. This battery assembly can be used in a vehicle.

[0049] The battery assembly may include a battery cell 1 and a cooling device 2. The cooling device 2 is in contact with the battery cell 1 and is configured to cool the battery cell 1.

[0050] According to this disclosure, the cooling device 2 includes a longitudinally extending cooling plate 20 and a confluence member 21 disposed at the end of the cooling plate 20.

[0051] The battery cell 1 includes at least one cell 10, wherein the cell 10 is in surface contact with the cooling plate 20 of the cooling device 2.

[0052] Depending on specific requirements, the cooling plate 20, busbar 21, battery cell 10, and their arrangement in the battery assembly can take many different forms.

[0053] The cooling plate 20 can have an external shape adapted to the shape of the battery cell 10. For example, when the battery cell 10 has planar sides, the cooling plate 20 can have at least partially planar sections to make planar contact with the battery cell 10; when the battery cell 10 has arc-shaped sides, the cooling plate 20 can have at least partially arc-shaped sections to make planar contact with the battery cell 10. Some embodiments are illustrated below.

[0054] For example in Figures 1 to 8 In the illustrated embodiment, the cooling device 2 includes a cooling plate 20 with a flat tubular structure. Specifically, the cooling plate 20 extends longitudinally in a first direction x, extends straight in a thickness direction z perpendicular to the first direction x, and has a constant width in a second direction y perpendicular to both the first direction x and the thickness direction z.

[0055] The cooling plate 20 includes an outer cooling pipe 201 and inner fins 202. For example... Figures 3 to 6 As shown, the cooling outer tube 201 has a generally circular rectangular cross-section. The cooling outer tube 201 can be constructed as a sheet metal part made of sheet metal, wherein the joint portion 201a of the sheet metal extends along the longitudinal direction of the cooling outer tube 201 at its lateral surface, i.e., along the first direction x. In another alternative embodiment, as... Figure 7 As shown, the cooling outer tube 201 has a connector 201a extending along the first direction x at the arc.

[0056] The inner fins 202 are arranged within the cavity defined by the outer cooling tube 201. The inner fins 202 can also be constructed as sheet metal parts made of sheet metal. The inner fins 202 are corrugated, thus having a cross-section with crests 202a and troughs 202b, which are relative to each other. The crests 202a and troughs 202b alternate in a second direction y perpendicular to the first direction x, and are respectively connected to the inner wall of the outer cooling tube 201. The connector 201a of the outer cooling tube 201 bends and protrudes to the troughs 202b of the inner fins 202, thereby dividing the cavity into multiple fluid channels parallel to each other along the first direction x. The inner fins 202 turbulence of the coolant is achieved, increasing the heat exchange area and thus improving cooling efficiency. In addition, the inner fins 202 can serve as a support structure to improve the pressure resistance of the cooling outer tube 201.

[0057] Because the cooling plate 20 is constructed as a sheet metal part, it is permissible to use metal sheets, including those made of metal composite materials, to manufacture the cooling plate 20. For example, in this embodiment, the metal sheet may have a main layer and a sacrificial layer bonded together, wherein the main layer has a greater thickness than the sacrificial layer. Furthermore, the sacrificial layer has a higher chemical corrosion potential relative to the coolant than the main layer. In the cooling plate 20, the sacrificial layer is in direct contact with the coolant, thus allowing it to react chemically with the coolant before the main layer, and consequently be corroded by the coolant. Therefore, the main layer will only react chemically with the coolant after the sacrificial layer has been completely corroded. This significantly delays the process of the cooling plate 20 being corroded through by the coolant, significantly improves the service life of the cooling plate 20, and ensures the safety of the battery assembly.

[0058] In this embodiment, the main layer of the metal sheet may include aluminum, and the sacrificial layer may include an aluminum alloy containing zinc. For example, in this embodiment, the main layer is made of aluminum, and the sacrificial layer is made of 7072 aluminum alloy or 3003 aluminum alloy and 1.5% zinc by mass.

[0059] In this embodiment, the cooling device 2 further includes two manifolds 21 respectively disposed at the ends of the cooling plate 20. These two manifolds 21 may have identical structures, with one manifold 21 configured for the input of coolant to the cooling plate 20 and the other manifold 21 configured for the output of coolant from the cooling plate 20. For the sake of simplicity, only the structure of one manifold 21 will be described in detail here.

[0060] The manifold 21 includes a manifold 211 and a connector 212. The manifold 211 has a hexahedral shape, with open sections and includes a channel opening 211a for connecting to the cooling plate 20. For the manifold 21 used for coolant input, coolant flows into the manifold 211 through the connector 212 and then flows from the manifold 211 to the cooling plate 20 through the channel opening 211a; for the manifold 21 used for coolant output, coolant flows into the manifold 211 through the channel opening 211a and then flows out through the connector 212.

[0061] For example in Figure 9 and Figure 10 Another embodiment of the cooling device 2 is shown in the figure.

[0062] In this embodiment, the cooling device 2 includes three flat tubular cooling plates 20 and two manifolds 21 disposed at the ends of these cooling plates 20. The two manifolds 21 may have the same structure, one of which is configured for the input of coolant to the cooling plates 20, and the other of which is configured for the output of coolant from the cooling plates 21.

[0063] These cooling plates 20 and Figures 1 to 8 The embodiments shown have a largely the same construction.

[0064] The manifold 21 includes a manifold 211 and a connector 212. The manifold 211 has a cylindrical shape, is hollow, and includes three channels 211a for connecting to the cooling plate 20 respectively. For the manifold 21 used for coolant input, coolant flows into the manifold 211 through the connector 212, and then flows from the manifold 211 to the cooling plate 20 through the three channels 211a; for the manifold 21 used for coolant output, coolant flows into the manifold 211 through the three channels 211a, and then flows out through the connector 212.

[0065] For example in Figures 11 to 13 Another embodiment of the cooling device 2 is shown in the figure.

[0066] In this embodiment, the cooling device 2 includes a cooling plate 20 with a flat tubular structure and two manifolds 21 disposed at the ends of the cooling plate 20. The two manifolds 21 may have the same structure, one of which is configured for the input of coolant to the cooling plate 20, and the other manifold 21 is configured for the output of coolant from the cooling plate 21.

[0067] like Figure 13 As shown, the cooling plate 20 extends longitudinally in the first direction x and has a constant width in the second direction y, which is perpendicular to both the first direction x and the thickness direction z, unlike... Figures 1 to 10 In the embodiment shown, the cooling plate 20 is constructed as a plurality of smoothly transitioning arc-shaped segments in the thickness direction z perpendicular to the first direction x. Thus, as... Figure 12 In the side view shown, the cooling plate 20 is corrugated. This implementation is particularly suitable for battery cells with a cylindrical shape.

[0068] In the manufacturing process of cooling device 2, the metal composite material plates are first bent into, for example, shapes using a bending process. Figure 4 The cooling outer pipe 201 shown and, for example Figure 5 The inner fins 202 are shown; then the inner fins 202 are installed into the cooling outer tube 201 to form a pre-assembled cooling plate 20; then the corresponding manifolds 21 are inserted into the two ends of the cooling plate 20; finally, the cooling plate 20 together with the return components 21 are placed into a brazing furnace for brazing, thereby completing the manufacturing of the cooling device 2. In one embodiment of this disclosure, the crests 202a and troughs 202b of the inner fins 202 are welded to the inner wall of the cooling outer tube 201, and the bent portions at both ends of the metal plate are welded to form the joint 201a of the cooling outer tube 201. The joint 201a is welded to the troughs 202b of the inner fins 202, making the cooling outer tube 201 as a whole "B" shape. This improves the welding strength of the joint 201a and reduces the risk of cracking and leakage. In addition, the design of the joint 201a protruding to the trough 202b plays an automatic alignment role in the pre-assembly stage, realizing the self-alignment between the cooling outer tube 201 and the inner fins 202. This prevents the inner fins from moving axially or radially before entering the brazing furnace, ensuring the consistency of assembly accuracy and thus greatly improving the yield of automated production.

[0069] In some embodiments of this disclosure, to facilitate brazing of the cooling outer tube joint, the metal sheet is made of a metal composite material comprising a main body layer and a brazing layer. Exemplarily, in... Figure 4 In the embodiment of the cooling outer tube shown, the brazing layer is located on the outside of the main body layer; in Figure 7 In the embodiment of the cooling outer tube shown, the brazing layer can be located inside the main body layer or outside the main body layer.

[0070] In other embodiments of this disclosure, the metal sheet is made of a metal composite material comprising a main layer, a brazing layer and a sacrificial layer, wherein the sacrificial layer is located inside the cooling outer tube and is in direct contact with the coolant during use.

[0071] exist Figure 14 In another embodiment shown, the cooling device 2 includes three cooling plates 20 and two manifolds 21 disposed at both ends of these cooling plates 20. In this embodiment, the cooling plates 20 are also constructed in a flat tubular shape and have the same... Figures 11 to 13The cooling pipes 20 shown have the same structure, that is, these cooling plates 20 are each corrugated. Therefore, they can be applied to cylindrical cells of greater length. In this embodiment, the busbar 21 can have the same... Figure 9 and Figure 10 The same structure as the manifold 21 shown, that is, the manifold 211 of the manifold 21 has a cylindrical shape, wherein it is hollow and includes three channel openings 211a for respectively connecting to the cooling plate 20.

[0072] The construction of the cooling device 2 is not limited to the above-described embodiments. The number of cooling plates 20 can be changed as needed, for example, using 2, 4 or more cooling plates 20; other different shaped manifolds 21 can be used as needed.

[0073] Depending on the requirements, the battery cell 10 can be arranged on one or both sides of the cooling plate 20. The battery cell 10 can be bonded to the cooling plate 20, for example, by means of thermally conductive adhesive.

[0074] For example, in such Figure 1 In the illustrated embodiment, a row of adjacent battery cells 10 is arranged on both sides of the cooling plate 20 along the thickness direction z. For example, in this embodiment, two rows of a total of 10 battery cells 10 are arranged on both sides of the cooling plate 20. The battery cells 10 arranged on both sides of the cooling plate 20 along the thickness direction z are aligned with each other, and the cooling plate 20 is clamped between the battery cells 10. In this embodiment, each battery cell 10 is hexahedral in shape, and the widest side of the battery cell 10 with the largest surface area contacts the side of the cooling plate 20.

[0075] In alternative implementations, for example in Figure 9 In the illustrated embodiment, the battery cell 10 may also be arranged only on one side of the cooling plate 10. In this embodiment, a row of 13 battery cells 10 is arranged on only one side of the cooling plate 10, wherein each battery cell 10 is also constructed in a hexahedral shape, and the battery cell 10 contacts the side of the cooling plate 20 with its narrow side.

[0076] In another alternative implementation, for example in Figures 11 to 13 In the illustrated embodiment, the battery cell 10 is cylindrically constructed. A row of adjacent battery cells 10 is arranged on each side of the cooling plate 20 along the thickness z direction. For example, in this embodiment, two rows of a total of 20 battery cells 10 are arranged on each side of the cooling plate 20. Each battery cell 10 contacts the side surface of the cooling plate 20 with its circumferential surface. The battery cells 10 arranged on both sides of the cooling plate 20 along the thickness z direction are staggered relative to each other, thereby maximizing the contact area between the battery cells 10 and the cooling plate 20.

[0077] According to this disclosure, during the operation of the cooling plate 20, the coolant flows through the fluid channels inside the cooling plate 20. As previously described, the cooling plate 20 can be formed by bending a metal plate made of a metal composite material, with the sacrificial layer in direct contact with the coolant. This changes the corrosion path of the coolant on the cooling plate 20, where the coolant corrodes the sacrificial layer along the planar extension direction of the sacrificial layer, rather than along the thickness direction of the cooling plate 20 as in conventional designs. Only after the sacrificial layer is completely corroded will the main layer be corroded by the coolant. This greatly delays the time it takes for the cooling plate 20 to be penetrated by the coolant corrosion, significantly improves the service life of the cooling plate 20, and ensures the safety of the battery assembly.

[0078] Certain features, structures, or characteristics in one or more embodiments of the present invention may be appropriately combined.

[0079] The above description is illustrative of the invention and should not be construed as limiting it. Although several exemplary embodiments of the invention have been described, those skilled in the art will readily understand that many modifications can be made to the exemplary embodiments without departing from the novel teachings and advantages of the invention. Therefore, all such modifications are intended to be included within the scope of the invention as defined in the claims. It should be understood that the above description is illustrative of the invention, and the invention should not be considered limited to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the invention.

Claims

1. A cooling device for a battery assembly, characterized in that, The cooling device (2) includes: A cooling plate (20) extending longitudinally along a first direction (x) includes a cooling outer tube (201) for conducting coolant; wherein the cooling outer tube (201) is formed by bending and closing a single plate.

2. The cooling device according to claim 1, characterized in that, The plate is made of a metal composite material comprising a main layer and a brazing layer; wherein the individual plate is sealed by brazing.

3. The cooling device according to claim 2, characterized in that, The plate is made of a metal composite material that also includes a sacrificial layer; wherein the sacrificial layer is located inside the cooling outer tube.

4. The cooling device according to claim 1, characterized in that, The cooling plate (20) also includes inner fins (202) arranged in the cooling outer tube (201).

5. The cooling device according to claim 4, characterized in that, The inner fins (202) are made of a metal composite material comprising a main layer and a sacrificial layer.

6. The cooling device according to claim 3 or 5, characterized in that, The sacrificial layer has a higher chemical corrosion potential relative to the coolant than the host layer.

7. The cooling device according to claim 3 or 5, characterized in that, The sacrificial layer has a smaller material thickness than the main layer.

8. The cooling device according to claim 3 or 5, characterized in that, The main layer comprises aluminum, and the sacrificial layer comprises an aluminum alloy containing zinc.

9. The cooling device according to claim 8, characterized in that, The sacrificial layer contains at least 1.5% zinc by mass.

10. The cooling device according to claim 1, characterized in that, The cooling outer tube (201) has a circular rectangular cross-section.

11. The cooling device according to claim 10, characterized in that, The cooling outer tube (201) has a joint (201a) extending in a first direction (x) at the arc.

12. The cooling device according to claim 11, characterized in that, The inner fin (202) is constructed as a corrugated plate and includes alternating crests (202a) and troughs (202b) along a second direction (y) perpendicular to the first direction (x).

13. The cooling device according to claim 10, characterized in that, The cooling outer tube (201) has a connector (201a) extending in a first direction (x) on the lateral surface, wherein the connector (201a) protrudes to the trough (202b) of the inner fin (202).

14. A battery assembly, characterized in that, The battery assembly includes a battery cell (1) and a cooling device (2) according to any one of claims 1 to 13.

15. The battery assembly according to claim 14, characterized in that, The battery cell (1) includes at least one cell (10), wherein the cell (10) is in contact with at least one side of the cooling outer tube (201).

16. The battery assembly according to claim 15, characterized in that, The battery cell (10) has a hexahedral shape, and the cooling plate (20) has a planar section in at least a portion of the area, wherein the wide side of the battery cell (10) is in contact with the planar section of the cooling plate (20).

17. The battery assembly according to claim 16, characterized in that, Multiple battery cells (10) are arranged on both sides of the cooling plate (20) and are aligned with each other in the thickness direction (z) perpendicular to the first direction (x).

18. The battery assembly according to claim 15, characterized in that, Multiple of the battery cells (10) are arranged on one side of the cooling plate (20).

19. The battery assembly according to claim 15, characterized in that, The battery cell (10) has a cylindrical shape, and the cooling plate (20) has an arcuate section in at least a portion of the area, wherein the circumferential surface of the battery cell (10) is in contact with the arcuate section of the cooling plate (20).

20. The battery assembly according to claim 19, characterized in that, The cooling plate (20) is corrugated, wherein a plurality of the battery cells (10) are arranged on both sides of the cooling plate (20) and are offset from each other in the thickness direction (z) perpendicular to the first direction (x).

21. The battery assembly according to claim 15, characterized in that, The battery cell (10) is bonded to the cooling plate (20) with thermally conductive adhesive.

22. A vehicle, characterized in that, The vehicle includes the battery assembly as described in any one of claims 14 to 21.

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