Battery module and battery

Abstract

The utility model provides a battery module and a battery, and belongs to the technical field of power batteries. The battery module comprises a shell, a first battery cell unit, a second battery cell unit, a first liquid cooling plate and a second liquid cooling plate, wherein the first battery cell unit is positioned at the bottom of the shell. The second battery cell unit is located above the first battery cell unit, and the first battery cell unit and the second battery cell unit are both located in the shell. The first liquid cooling plate is located below the first battery cell unit, and the first liquid cooling plate is used for dissipating heat of the first battery cell unit. The second liquid cooling plate is located between the first battery cell unit and the second battery cell unit, and the second liquid cooling plate is used for cooling the first battery cell unit and the second battery cell unit. The battery comprises at least one battery module. The battery module provided by the utility model can be suitable for a battery system with a relatively large height space, a double-layer liquid cooling circulation loop is designed on the basis of a double-layer battery module, a good heat dissipation function is realized, and meanwhile, the battery module is more convenient to install and firm in structure.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular to a battery module and a battery. Background Art

[0002] With the continuous advancement of science and technology and the diversification of user needs, new energy power battery technology has also experienced rapid development. New energy power battery packs are typically housed in battery enclosures, which serve as carriers for the power batteries and facilitate the installation of battery components. Furthermore, the battery packs require a liquid cooling system to maintain battery temperature, making it crucial to proactively enhance the functionality of both the battery enclosure and the cooling system.

[0003] Currently, installing a liquid cooling system in power batteries is a widely used and effective battery cooling method. A common arrangement for liquid cooling in battery packs is to install several pipes on a liquid cooling plate, through which coolant is introduced and circulated to cool the battery pack. When the battery modules in the battery pack are double-layer modules, a double-layer module structure with liquid cooling circulation is required.

[0004] However, current power battery systems demand high energy density, placing strict weight requirements on the liquid cooling plate. Excessive weight can significantly reduce the energy density of the power battery system. As a core component of new energy vehicles, the performance of the liquid cooling plate directly impacts the heat dissipation and power density of the battery pack. Utility Model Content

[0005] The present application provides a battery module and a battery that can be used in a battery system with a larger height space. A double-layer liquid cooling circulation loop is designed based on the double-layer battery module to achieve good heat dissipation function. At the same time, the installation is more convenient and the structure is more reliable.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] In a first aspect, the present application provides a battery module, comprising:

[0008] case;

[0009] A first battery cell unit, the first battery cell unit is located at the bottom of the shell;

[0010] A second battery cell unit, the second battery cell unit is located above the first battery cell unit, and the first battery cell unit and the second battery cell unit are both located in the housing;

[0011] A first liquid cooling plate is located below the first battery cell unit and is used to dissipate heat from the first battery cell unit;

[0012] The second liquid cooling plate is located between the first battery core unit and the second battery core unit, and is used to dissipate heat for the first battery core unit and the second battery core unit.

[0013] Based on the above technical solution, this application can also be improved as follows.

[0014] In one possible implementation, the battery module further includes: a connecting pipeline;

[0015] The connecting pipeline is located between the first liquid cooling plate and the second liquid cooling plate, and the connecting pipeline is used to connect the first liquid cooling plate and the second liquid cooling plate in series.

[0016] In a possible implementation, the second liquid cooling plate is provided with a plurality of first mounting holes and a plurality of second mounting holes;

[0017] The plurality of first mounting holes and the plurality of second mounting holes are alternately and spaced apart.

[0018] In a possible implementation, the battery module further includes: a plurality of first fixing members and a plurality of second fixing members;

[0019] One end of a plurality of first fixing members is passed through a plurality of first mounting holes and is provided in the first battery cell unit and inserted into the first liquid cooling plate, so that the first battery cell unit is fixedly connected to the first liquid cooling plate;

[0020] One end of a plurality of second fixing members is passed through the second battery core unit and inserted into the second liquid cooling plate through a plurality of second mounting holes, so that the second battery core unit is fixedly connected to the second liquid cooling plate.

[0021] In one possible implementation, the battery module further includes: a plurality of support blocks;

[0022] A plurality of support blocks are located between the first battery cell unit and the second liquid cooling plate;

[0023] The support block is used to support the second liquid cooling plate.

[0024] In a possible implementation, the battery module further includes: a box;

[0025] The box body is located outside the shell;

[0026] The box is used to support the battery module.

[0027] In a possible implementation, the battery module further includes: a water inlet and a water outlet;

[0028] A water inlet hole and a water outlet hole are provided on one side of the box body. The water inlet nozzle is provided in the water inlet hole, and the water outlet nozzle is provided in the water outlet hole.

[0029] In a possible implementation, the battery module further includes: a water inlet pipe and a water outlet pipe;

[0030] The second liquid cooling plate is provided with a water inlet and a water outlet;

[0031] One end of the water inlet pipe is connected to the water inlet hole, and the other end of the water inlet pipe is connected to the water inlet;

[0032] One end of the water outlet pipe is connected to the water outlet hole, and the other end of the water outlet pipe is connected to the water outlet.

[0033] In a possible implementation, the first liquid cooling plate is a stamped cold plate, and the second liquid cooling plate is a profiled cold plate.

[0034] A second aspect of the present application provides a battery comprising at least one of the above-mentioned battery modules.

[0035] The present application provides a battery module and a battery, which includes a shell, a first battery cell unit, a second battery cell unit, a first liquid cooling plate and a second liquid cooling plate. The first battery cell unit is located at the bottom of the shell. The second battery cell unit is located above the first battery cell unit, and the first battery cell unit and the second battery cell unit are both located in the shell. The first liquid cooling plate is located below the first battery cell unit, and the first liquid cooling plate is used to dissipate heat for the first battery cell unit. The second liquid cooling plate is located between the first battery cell unit and the second battery cell unit, and the second liquid cooling plate is used to dissipate heat for the first battery cell unit and the second battery cell unit. The battery includes at least one of the above-mentioned battery modules. In this way, the battery module provided by the present application can be applied to battery systems with a larger height space. A double-layer liquid cooling circulation loop is designed on the basis of a double-layer battery module to achieve good heat dissipation function, while being more convenient to install and having a reliable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 A schematic structural diagram of a battery module provided in one embodiment of the present application;

[0038] Figure 2 A cross-sectional view of a battery module provided in one embodiment of the present application;

[0039] Figure 3 This is a schematic structural diagram of the second liquid cooling plate in the battery module provided in one embodiment of the present application.

[0040] Description of reference numerals:

[0041] 100-battery module;

[0042] 200-housing;

[0043] 210-end plate;

[0044] 300-first battery cell unit;

[0045] 400-second battery cell unit;

[0046] 500-first liquid cooling plate;

[0047] 510-first fixing member;

[0048] 600-second liquid cooling plate;

[0049] 610 - first mounting hole; 620 - second mounting hole; 630 - second fixing member; 640 - crossbeam; 650 - extension; 660 - water inlet; 670 - water outlet;

[0050] 700-support block;

[0051] 800-cabinet;

[0052] 810-water inlet; 820-water outlet; 830-water inlet hole; 840-water outlet hole; 850-water inlet pipe; 860-water outlet pipe. DETAILED DESCRIPTION

[0053] As described in the background, current power battery systems demand high energy density, placing stringent weight requirements on the liquid cooling plate. Excessive weight can significantly reduce the energy density of the power battery system. As a core component of new energy vehicles, the performance of the liquid cooling plate directly impacts the heat dissipation and power density of the battery pack.

[0054] In response to the above technical problems, an embodiment of the present application provides a battery module and a battery, which includes a shell, a first battery cell unit, a second battery cell unit, a first liquid cooling plate and a second liquid cooling plate. The first battery cell unit is located at the bottom of the shell. The second battery cell unit is located above the first battery cell unit, and the first battery cell unit and the second battery cell unit are both located in the shell. The first liquid cooling plate is located below the first battery cell unit, and the first liquid cooling plate is used to dissipate heat for the first battery cell unit. The second liquid cooling plate is located between the first battery cell unit and the second battery cell unit, and the second liquid cooling plate is used to dissipate heat for the first battery cell unit and the second battery cell unit. The battery includes at least one of the above-mentioned battery modules. In this way, the battery module provided in the embodiment of the present application can be applied to battery systems with a larger height space. A double-layer liquid cooling circulation loop is designed on the basis of a double-layer battery module to achieve good heat dissipation function, while being more convenient to install and having a reliable structure.

[0055] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0056] The present invention provides a battery module and battery suitable for battery systems with a large height and space. Based on a double-layer battery module, a double-layer liquid cooling circuit is designed to achieve excellent heat dissipation, while also making installation more convenient and the structure more reliable. The specific structure of the battery module and battery provided in the present invention is described below in conjunction with the accompanying drawings.

[0057] refer to Figure 1 as well as Figure 2 In a first aspect, an embodiment of the present application provides a battery module 100. The battery module 100 may include a housing 200, a first battery cell unit 300, a second battery cell unit 400, a first liquid cooling plate 500, and a second liquid cooling plate 600. In one possible implementation, the first battery cell unit 300 and the second battery cell unit 400 may be stacked in the height direction of the housing 200, and the first battery cell unit 300 and the second battery cell unit 400 may form a double-layer structure. The first battery cell unit 300 may be located at the bottom of the housing 200, that is, the first battery cell unit 300 may be the first layer structure of the battery module 100. Correspondingly, the second battery cell unit 400 may be located above the first battery cell unit 300, that is, the second battery cell unit 400 may be the second layer structure of the battery module 100. It is understandable that both the first battery cell unit 300 and the second battery cell unit 400 may be located inside the housing 200.

[0058] Continue to refer Figure 2 In a specific implementation of the embodiment of the present application, the first liquid cooling plate 500 and the second liquid cooling plate 600 may be located below the first battery cell unit 300 and the second battery cell unit 400, respectively. In one possible implementation, the first liquid cooling plate 500 may be located below the first battery cell unit 300, so that the first liquid cooling plate 500 can be used to dissipate heat for the first battery cell unit 300. Correspondingly, the second liquid cooling plate 600 may be located below the second battery cell unit 400. It is understandable that the second liquid cooling plate 600 may be located between the first battery cell unit 300 and the second battery cell unit 400, so that the second liquid cooling plate 600 can be used to dissipate heat for the first battery cell unit 300 and the second battery cell unit 400.

[0059] Continue to refer Figure 1 as well as Figure 2 Based on the above embodiment, in one possible implementation, the number of the first battery cell unit 300 and the number of the second battery cell unit 400 can be at least two respectively. The present application does not limit the number of the first battery cell unit 300 and the second battery cell unit 400. In the embodiment of the present application, the number of the first battery cell unit 300 and the number of the second battery cell unit 400 are two respectively. Figure 1 As shown, the two first battery cell units 300 can be distributed laterally on the first liquid cooling plate 500 in the width direction of the housing 200. Correspondingly, the two second battery cell units 400 can also be distributed laterally on the second liquid cooling plate 600 in the width direction of the housing 200. In one possible implementation, the area of ​​the first liquid cooling plate 500 can be greater than or equal to the area of ​​the two first battery cell units 300, so that the first liquid cooling plate 500 can support the first battery cell units 300. Correspondingly, the area of ​​the second liquid cooling plate 600 can be greater than or equal to the area of ​​the two second battery cell units 400, so that the second liquid cooling plate 600 can support the second battery cell units 400.

[0060] Based on the above embodiment, a flow channel (not shown in the figure) can be respectively opened on one side of the first liquid cooling plate 500 and the second liquid cooling plate 600. The flow channel can allow the coolant to flow, thereby achieving the heat dissipation function of the battery module 100. In one possible implementation, Figure 2As shown, both the first and second liquid cooling plates 500, 600 can be rectangular structures, and the dimensions of the first and second liquid cooling plates 500, 600 can be identical. Accordingly, the first and second battery cell units 300, 400 can also be rectangular structures. This allows the first and second liquid cooling plates 500, 600, first and second battery cell units 300, 400 to form a single rectangular structure, facilitating installation and fixturing.

[0061] On the basis of the above embodiment, the battery module 100 may further include: a connecting pipe (not shown in the figure). Among them, the connecting pipe can be located between the first liquid cooling plate 500 and the second liquid cooling plate 600, and the position of the connecting pipe should avoid interference with the first battery cell unit 300 and the second battery cell unit 400. It can be understood that the connecting pipe can be used to connect the first liquid cooling plate 500 and the second liquid cooling plate 600 in series. In this way, after the coolant enters the battery module 100, it can realize liquid cooling circulation in the flow channels of the first liquid cooling plate 500 and the second liquid cooling plate 600, which can have a good heat dissipation function for the battery module 100.

[0062] refer to Figure 3 On the basis of the above embodiment, a first mounting hole 610 and a second mounting hole 620 are provided on the second liquid cooling plate 600. In one possible implementation, the number of the first mounting hole 610 and the second mounting hole 620 can be multiple, and the present application does not limit the number of the first mounting hole 610 and the second mounting hole 620. In the embodiment of the present application, multiple first mounting holes 610 and multiple second mounting holes 620 can be arranged alternately and at intervals. In one possible implementation, the second liquid cooling plate 600 can have a crossbeam 640 at both ends, and multiple first mounting holes 610 and multiple second mounting holes 620 can be respectively opened on the crossbeam 640. Correspondingly, the first liquid cooling plate 500 can also have a crossbeam 640 at both ends. Multiple first mounting holes 610 can also be opened on the crossbeam 640 of the first liquid cooling plate 500. It is understandable that the first mounting hole 610 on the first liquid cooling plate 500 may correspond to the first mounting hole 610 on the second liquid cooling plate 600 .

[0063] Continue to refer Figure 2On the basis of the above embodiment, the battery module 100 further includes: a first fixing member 510 and a second fixing member 630. In one possible implementation, the number of the first fixing member 510 and the second fixing member 630 can be multiple, and the present application does not limit the number of the first fixing member 510 and the second fixing member 630. It can be understood that the number of the first fixing members 510 can be the same as the number of the first mounting holes 610, and the number of the second fixing members 630 can be the same as the number of the second mounting holes 620. In the embodiment of the present application, one end of the multiple first fixing members 510 can pass through the multiple first mounting holes 610 on the second liquid cooling plate 600, and then pass through the first battery cell unit 300 and insert into the multiple first mounting holes 610 on the first liquid cooling plate 500, so that the first battery cell unit 300 is fixedly connected to the first liquid cooling plate 500. Accordingly, one end of the plurality of second fixing members 630 can be inserted through the second battery cell unit 400 and inserted into the plurality of second mounting holes 620 on the second liquid cooling plate 600, thereby securely connecting the second battery cell unit 400 to the second liquid cooling plate 600. In this way, the entire battery module 100 is secured in the height direction of the housing 200 by the plurality of first fixing members 510 and the plurality of second fixing members 630, and the second battery cell unit 400, the second liquid cooling plate 600, the first battery cell unit 300, and the first liquid cooling plate 500 are sequentially installed and securely connected.

[0064] Continue to refer Figure 2 , based on the above embodiment, in one possible implementation, the first fixing member 510 and the second fixing member 630 can be bolts. It is understandable that, if Figure 1 As shown, the shell 200 may include a plurality of end plates 210. The plurality of end plates 210 may be located on the outside of the first battery cell unit 300 and the second battery cell unit 400, thereby forming the entire shell 200. Among them, the end plate 210 located on the outside of the first battery cell unit 300 and the end plate 210 located on the outside of the second battery cell unit 400 are universal. In one possible implementation, the first fixing member 510 and the second fixing member 630 may be respectively passed through the end plate 210 to achieve the fixation of the battery module 100. Compared with the design of using only one long bolt to fix the double-layer module in the related art, the battery module 100 provided in the embodiment of the present application is more convenient and structurally reliable through the staggered installation of the first fixing member 510 and the second fixing member 630.

[0065] Continue to refer Figure 2, based on the above embodiment, the battery module 100 may further include: a support block 700. Among them, in a possible implementation, the number of support blocks 700 may be several, and the present application does not limit the number of support blocks 700. In an embodiment of the present application, several support blocks 700 may be located between the first battery cell unit 300 and the second liquid cooling plate 600, and the support blocks 700 may be used to support the second liquid cooling plate 600. In a possible implementation, several support blocks 700 may be located in the gap between the first battery cell unit 300 and the second liquid cooling plate 600, so that the support blocks 700 can better provide support for the second liquid cooling plate 600 and the second battery cell unit 400.

[0066] Continue to refer Figure 1 On the basis of the above embodiment, the battery module 100 may further include: a box body 800. The box body 800 may be located on the outside of the shell 200. It can be understood that the box body 800 can be used to support the battery module 100. In one possible implementation, the box body 800 may be a rectangular structure, and the size of the box body 800 may be greater than or equal to the size of the shell 200, so that the box body 800 can carry the first battery cell unit 300, the second battery cell unit 400, the first liquid cooling plate 500 and the second liquid cooling plate 600. In one possible implementation, the box body 800 may include a main frame and a bottom guard plate. The main frame may be made of rolled steel welding, and the main frames may be fusion welded, while the bottom guard plate and the main frame may be laser welded to ensure the overall sealing performance.

[0067] Continue to refer Figure 1 Based on the above embodiment, the battery module 100 may further include: a water inlet 810 and a water outlet 820. A water inlet hole 830 and a water outlet hole 840 may be provided on one side of the housing 800, and the water inlet hole 830 and the water outlet hole 840 may correspond to the water inlet 810 and the water outlet 820, respectively. In this way, the water inlet 810 and the water outlet 820 may be respectively provided through the water inlet hole 830 and the water outlet hole 840, thereby communicating with the battery module 100.

[0068] Continue to refer Figure 1On the basis of the above embodiment, the battery module 100 may further include: a water inlet pipe 850 and a water outlet pipe 860. In one possible implementation, both ends of one side of the second liquid cooling plate 600 may have an extension portion 650, and the two extension portions 650 may be respectively provided with a water inlet 660 and a water outlet 670. Among them, one end of the water inlet pipe 850 may be connected to the water inlet hole 830, and the other end of the water inlet pipe 850 may be connected to the water inlet 660. Correspondingly, one end of the water outlet pipe 860 may be connected to the water outlet hole 840, and the other end of the water outlet pipe 860 may be connected to the water outlet 670. The water inlet 660 and the water outlet 670 may also correspond to the water inlet nozzle 810 and the water outlet nozzle 820, respectively, so that the water inlet nozzle 810 and the water outlet nozzle 820 can be respectively connected to the water inlet 660 and the water outlet 670 through the water inlet pipe 850 and the water outlet pipe 860 after being inserted into the water inlet hole 830 and the water outlet hole 840. It is understood that the water inlet 660 and the water outlet 670 can both be connected to the flow channel on the second liquid cooling plate 600. In this way, the coolant can be injected from the water inlet nozzle 810, flow through the water inlet hole 830, flow through the water inlet pipe 850 and connect with the water inlet 660, and then flow into the flow channel of the second liquid cooling plate 600, and then flow to the flow channel of the first liquid cooling plate 500 through the connecting pipeline, so that the coolant flows inside the flow channels of the first liquid cooling plate 500 and the second liquid cooling plate 600, thereby performing liquid cooling and heat dissipation for the first battery cell unit 300 and the second battery cell unit 400, and then flows out in sequence through the water outlet 670, the water outlet pipe 860, the water outlet hole 840 and the water outlet nozzle 820.

[0069] Based on the above embodiment, in one possible implementation, the first liquid cooling plate 500 may be a stamped plate, and the second liquid cooling plate 600 may be a profiled plate. It is understood that stamped and profiled plates can save costs, improve production efficiency, ensure processing accuracy and product quality, and are suitable for different production needs.

[0070] A second aspect of an embodiment of the present application provides a battery (not shown in the figures), which may include at least one of the above-mentioned battery modules 100.

[0071] In the embodiment of the present application, the provided battery module 100 can be suitable for battery systems with a larger height space. A double-layer liquid cooling circulation loop is designed based on the double-layer battery module 100, which can achieve good heat dissipation function, while being more convenient to install and having a reliable structure.

[0072] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0073] It should be noted that phrases such as "in a specific implementation," "in some embodiments," "in this embodiment," and "exemplarily" mentioned in the specification indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0074] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0075] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0076] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery module, characterized in that: include: case; A first battery cell unit, wherein the first battery cell unit is located at the bottom of the housing; A second battery cell unit, wherein the second battery cell unit is located above the first battery cell unit, and both the first battery cell unit and the second battery cell unit are located in the shell; A first liquid cooling plate, the first liquid cooling plate is located under the first battery cell unit, and the first liquid cooling plate is used to dissipate heat for the first battery cell unit; The second liquid cooling plate is located between the first battery core unit and the second battery core unit, and the second liquid cooling plate is used to dissipate heat for the first battery core unit and the second battery core unit.

2. The battery module according to claim 1, characterized in that: The battery module further includes: a connecting pipeline; The connecting pipeline is located between the first liquid cooling plate and the second liquid cooling plate, and the connecting pipeline is used to connect the first liquid cooling plate and the second liquid cooling plate in series.

3. The battery module according to claim 2, characterized in that: The second liquid cooling plate is provided with a plurality of first mounting holes and a plurality of second mounting holes; A plurality of the first mounting holes and a plurality of the second mounting holes are arranged alternately and at intervals.

4. The battery module according to claim 3, characterized in that: The battery module further includes: a plurality of first fixing members and a plurality of second fixing members; One end of a plurality of the first fixing members is passed through a plurality of the first mounting holes and is disposed in the first battery cell unit and inserted into the first liquid cooling plate, so that the first battery cell unit is fixedly connected to the first liquid cooling plate; One end of a plurality of the second fixing members is inserted into the second battery core unit and inserted into the second liquid cooling plate through a plurality of the second mounting holes, so that the second battery core unit is fixedly connected to the second liquid cooling plate.

5. The battery module according to claim 4, characterized in that: The battery module also includes: a plurality of support blocks; A plurality of the support blocks are located between the first battery cell unit and the second liquid cooling plate; The supporting block is used to support the second liquid cooling plate.

6. The battery module according to any one of claims 1 to 5, characterized in that: The battery module also includes: a box; The box body is located outside the shell; The box is used to support the battery module.

7. The battery module according to claim 6, characterized in that: The battery module also includes: a water inlet and a water outlet; A water inlet hole and a water outlet hole are provided on one side of the box body, the water inlet nozzle is penetrated through the water inlet hole, and the water outlet nozzle is penetrated through the water outlet hole.

8. The battery module according to claim 7, characterized in that: The battery module also includes: a water inlet pipe and a water outlet pipe; The second liquid cooling plate is provided with a water inlet and a water outlet; One end of the water inlet pipe is connected to the water inlet hole, and the other end of the water inlet pipe is connected to the water inlet port; One end of the water outlet pipe is connected to the water outlet hole, and the other end of the water outlet pipe is connected to the water outlet.

9. The battery module according to any one of claims 1 to 5, characterized in that: The first liquid cooling plate is a stamped cold plate, and the second liquid cooling plate is a profile cold plate.

10. A battery, characterized in that: The invention comprises at least one battery module according to any one of claims 1 to 9.

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