Heating and heat dissipation integrated heat management device and battery pack

Abstract

The utility model provides a heating and heat dissipation integrated heat management device and a battery pack. The heating and heat dissipation integrated heat management device is used for being arranged at the bottom of a battery box body of the battery pack and bearing a plurality of single batteries of the battery pack; the heating and heat dissipation integrated heat management device comprises an electric heating piece, a liquid cooling plate and a uniform temperature diffusion layer, the liquid cooling plate is arranged on the lower surface of the electric heating piece, a lower protective film is arranged on the lower surface of the liquid cooling plate, and the uniform temperature diffusion layer is arranged on the upper surface of the electric heating piece; an upper protective film is arranged on the upper surface of the uniform-temperature diffusion layer, a first adhesive layer is arranged on the upper surface of the upper protective film, and the first adhesive layer can adhere and fix the single batteries. By means of the structural design, the integrated design of the heating function and the heat dissipation function can be achieved, and meanwhile the uniformity of the heating effect of the single batteries in different areas is improved. On the basis, the upper protective film and the lower protective film are used for protecting the whole device, and particularly, the uniform-temperature diffusion layer can be prevented from being exposed to the outer layer.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, and in particular to an integrated heating and heat dissipation thermal management device and battery pack. Background Technology

[0002] In existing battery pack designs, heating and cooling devices are used to heat and dissipate heat from individual cells, which results in complex structures, large space requirements, and affects the energy density of the battery pack. Furthermore, conventional heating devices exhibit significant differences in heating effectiveness across different areas of the individual cells, leading to poor uniformity in the heating function. To improve this uniformity, some existing solutions employ graphene films in the heating devices to enhance the diffusion rate of heat transfer to different areas of the individual cells during heating. However, the graphene films used in these solutions are exposed on the outer layer of the heating device and are easily damaged by scratches and impacts, affecting the uniform temperature diffusion effect. Utility Model Content

[0003] One of the main objectives of this invention is to overcome at least one of the defects of the prior art and provide an integrated heating and heat dissipation thermal management device that integrates heating and heat dissipation functions and can effectively protect the uniform temperature diffusion layer.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] According to one aspect of this utility model, an integrated heating and heat dissipation thermal management device is provided, which is used to be disposed at the bottom of the battery box of a battery pack and to support multiple individual batteries of the battery pack; the integrated heating and heat dissipation thermal management device includes an electric heating element, a liquid cooling plate, and a temperature diffusion layer, wherein the liquid cooling plate is disposed on the lower surface of the electric heating element, and a lower protective film is disposed on the lower surface of the liquid cooling plate; the temperature diffusion layer is disposed on the upper surface of the temperature diffusion layer, and a first adhesive layer is disposed on the upper surface of the upper protective film, the first adhesive layer being capable of bonding and fixing the individual batteries.

[0006] According to one embodiment of the present invention, the uniform temperature diffusion layer is a graphene film.

[0007] According to one embodiment of the present invention, wherein: the electric heating element and the temperature diffusion layer are bonded together via a second adhesive layer, the second adhesive layer being a thermally conductive structural adhesive; and / or, the electric heating element and the liquid cooling plate are bonded together via a third adhesive layer, the third adhesive layer being a thermally conductive structural adhesive.

[0008] According to one embodiment of the present invention, the liquid cooling plate includes an upper plate, a flow channel, and a lower plate. The upper plate is located above the lower plate, and the flow channel is disposed between the upper plate and the lower plate. The flow channel, together with the upper plate and the lower plate, forms a cooling flow channel, which allows coolant to flow.

[0009] According to one embodiment of the present invention, the upper plate is a heat spreader, which includes a graphene-alloy composite material layer and two substrates, the two substrates being respectively disposed on the upper and lower surfaces of the graphene-alloy composite material layer.

[0010] According to one embodiment of the present invention, the graphene-alloy composite material layer includes at least two low-temperature alloy layers and at least one graphene layer stacked alternately, with the uppermost and lowermost layers being the low-temperature alloy layers, and the melting point of the low-temperature alloy layers being 150°C to 500°C; and / or, the substrate is made of aluminum alloy.

[0011] According to one embodiment of the present invention, the lower plate is made of aluminum.

[0012] According to one embodiment of the present invention, the lower protective film is a blue protective film or a PET protective film; and / or, the upper protective film is a blue protective film or a PET protective film.

[0013] According to one embodiment of the present invention, wherein: the first adhesive layer is acrylic PET double-sided adhesive; and / or, the first adhesive layer is a transparent material.

[0014] As can be seen from the above technical solution, the advantages and positive effects of the integrated heating and heat dissipation thermal management device proposed in this utility model are as follows:

[0015] This invention proposes an integrated heating and cooling thermal management device comprising an electric heating element, a liquid cooling plate, and a temperature diffusion layer. The liquid cooling plate is disposed on the lower surface of the electric heating element, and a lower protective film is disposed on the lower surface of the liquid cooling plate. The temperature diffusion layer is disposed on the upper surface of the electric heating element; an upper protective film is disposed on the upper surface of the temperature diffusion layer, and a first adhesive layer is disposed on the upper surface of the upper protective film. The first adhesive layer can bond and fix the individual battery cells. Through the above structural design, this invention integrates the electric heating element and the liquid cooling plate together, achieving an integrated design of heating and cooling functions, which simplifies the structure, reduces space occupation, and thus improves the energy density of the battery pack. Simultaneously, this invention utilizes the temperature diffusion layer to achieve heat diffusion during the heating process, improving the uniformity of heating effect on individual battery cells in different areas. Furthermore, this invention uses the upper and lower protective films to provide overall protection for the device, particularly preventing the temperature diffusion layer from being exposed to the outer layer, thereby ensuring the temperature diffusion effect.

[0016] Another major objective of this invention is to overcome at least one of the defects of the prior art and to provide a battery pack employing the aforementioned integrated heating and heat dissipation thermal management device.

[0017] To achieve the above objectives, the present invention adopts the following technical solution:

[0018] According to one aspect of the present invention, a battery pack is provided, comprising a battery housing and a plurality of individual batteries. The battery housing includes a base plate, on which a heating and heat dissipation integrated thermal management device proposed in the present invention and described in the above embodiments is disposed. The plurality of individual batteries are supported on the heating and heat dissipation integrated thermal management device.

[0019] As can be seen from the above technical solution, the advantages and positive effects of the battery pack proposed in this utility model are as follows:

[0020] The battery pack proposed in this invention, by adopting the integrated heating and heat dissipation thermal management device proposed in this invention, can achieve a high energy density, while also enabling the heating function of individual cells to have a relatively stable uniform temperature diffusion effect. Attached Figure Description

[0021] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0022] Figure 1 This is a schematic diagram of the structure of an integrated heating and heat dissipation thermal management device according to an exemplary embodiment;

[0023] Figure 2 yes Figure 1 A schematic diagram of the decomposition process;

[0024] Figure 3 yes Figure 2 An exploded view of the liquid cooling plate in the middle;

[0025] Figure 4 yes Figure 3 A schematic diagram of the cross-section of the heat exchanger in the image;

[0026] Figure 5 This is a schematic diagram of the structure of a battery pack according to an exemplary embodiment.

[0027] The annotations in the attached figures are explained as follows:

[0028] 100. Integrated heating and heat dissipation thermal management device;

[0029] 110. Electric heating element;

[0030] 120. Liquid cooling plate;

[0031] 121. Flow channel;

[0032] 122. Upper board;

[0033] 1221. Graphene-alloy composite material layer;

[0034] 1222.Substrate;

[0035] 123. Lower the board;

[0036] 130. Uniform temperature diffusion layer;

[0037] 140. Lower protective film;

[0038] 150. Apply a protective film;

[0039] 160. First adhesive layer;

[0040] 200. Battery housing;

[0041] 300. Single cell battery. Detailed Implementation

[0042] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the description and drawings therein are for illustrative purposes only and not intended to limit this utility model.

[0043] In the following description of different exemplary embodiments of the present invention, reference is made to the accompanying drawings, which form part of the present invention, and which illustrate by way of example various exemplary structures, systems, and steps that can implement multiple aspects of the present invention. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the present invention. Furthermore, although the terms “above,” “between,” “within,” etc., may be used in this specification to describe different exemplary features and elements of the present invention, these terms are used herein only for convenience, such as the orientation according to the examples shown in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present invention.

[0044] See Figure 1This illustration shows a representative structural diagram of the integrated heating and cooling thermal management device 100 proposed in this utility model. In this exemplary embodiment, the integrated heating and cooling thermal management device 100 is described using an application to an on-board battery as an example. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to apply the relevant designs of this utility model to other types of battery packs or other power battery devices. These changes are still within the scope of the principles of the integrated heating and cooling thermal management device 100 proposed in this utility model.

[0045] like Figure 1 and Figure 5 As shown, in one embodiment of this utility model, the integrated heating and heat dissipation thermal management device 100 proposed by this utility model is used to be installed at the bottom of the battery box 200 of the battery pack, for example, on the bottom plate of the battery box 200. The integrated heating and heat dissipation thermal management device 100 can support multiple individual batteries 300 of the battery pack. (See also...) Figures 2 to 4 , Figure 2 China representatively shows Figure 1 A schematic diagram of the decomposition process; Figure 3 An exploded view of the liquid cooling plate 120 is shown in the figure. Figure 4 A representative cross-sectional schematic diagram of the heat spreader is shown in the accompanying drawings. To more clearly illustrate the components, the thickness of some layers is exaggerated in the related drawings. Therefore, the thickness, dimensions, or thickness relationships between different layers in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. The following will, in conjunction with the aforementioned drawings, provide a detailed description of the structure, connection methods, and functional relationships of the main components of the integrated heating and heat dissipation thermal management device 100 proposed in this invention.

[0046] like Figure 1 and Figure 2As shown, in one embodiment of this utility model, the integrated heating and heat dissipation thermal management device 100 proposed by this utility model includes at least an electric heating element 110, a liquid cooling plate 120, and a temperature diffusion layer 130. Specifically, the liquid cooling plate 120 is disposed on the lower surface of the electric heating element 110, and a lower protective film 140 is disposed on the lower surface of the liquid cooling plate 120. The liquid cooling plate 120 plays the role of balancing the overall temperature and dissipating heat as quickly as possible, while the lower protective film 140 plays the role of protection and insulation. The temperature diffusion layer 130 is disposed on the upper surface of the electric heating element 110, and an upper protective film 150 is disposed on the upper surface of the temperature diffusion layer 130. The temperature diffusion layer 130 plays the role of rapidly transferring heating temperature, while the upper protective film 150 plays the role of protection and insulation. A first adhesive layer 160 is disposed on the upper surface of the upper protective film 150, which can bond and fix the individual battery 300. Through the above structural design, this invention integrates the electric heating element 110 and the liquid cooling plate 120, achieving an integrated design of heating and heat dissipation functions. This simplifies the structure, reduces space occupation, and thus improves the energy density of the battery pack. Simultaneously, this invention utilizes the temperature diffusion layer 130 to achieve heat diffusion during the heating process, improving the uniformity of heating effect on individual battery cells 300 in different areas. Furthermore, this invention uses an upper protective film 150 and a lower protective film 140 to provide overall protection for the device, particularly preventing the temperature diffusion layer 130 from being exposed to the outside, thereby ensuring the temperature diffusion effect. In addition, compared to existing solutions, this invention requires less power during operation, effectively saving energy and achieving a low-energy, environmentally friendly effect.

[0047] like Figure 2 As shown, in one embodiment of this invention, the temperature diffusion layer 130 can be a graphene film. Through the above structural design, this invention uses a graphene film as the temperature diffusion layer 130, which allows temperature to rapidly diffuse to all areas of the battery pack during both heating and cooling, shortening the application time for heating and heat dissipation, and enabling each individual battery cell 300 in each area to quickly reach the ideal temperature. In other embodiments, the temperature diffusion layer 130 can also adopt other structures with temperature diffusion functions, and is not limited to this embodiment.

[0048] like Figure 2As shown, in one embodiment of this invention, the electric heating element 110 and the temperature diffusion layer 130 can be bonded together via a second adhesive layer, which can be a thermally conductive structural adhesive. Through this structural design, this invention utilizes a thermally conductive structural adhesive to bond the electric heating element 110 and the temperature diffusion layer 130. This achieves structural connection while further ensuring heat transfer between the electric heating element 110 and the temperature diffusion layer 130, thereby further improving the response speed and heating efficiency of the heating function. In some embodiments, the second adhesive layer can also be made of other types of adhesive materials, or the electric heating element 110 and the temperature diffusion layer 130 can be fixedly connected using other structures or processes, and are not limited to this embodiment.

[0049] like Figure 2 As shown, in one embodiment of this invention, the electric heating element 110 and the liquid cooling plate 120 can be bonded together via a third adhesive layer, which can be a thermally conductive structural adhesive. Through this structural design, this invention utilizes a thermally conductive structural adhesive to bond the electric heating element 110 and the liquid cooling plate 120. This achieves structural connection while further ensuring heat transfer between the electric heating element 110 and the liquid cooling plate 120, thereby further improving the response speed and heat dissipation efficiency of the heat dissipation function. In some embodiments, other types of adhesive materials can be used for the third adhesive layer, or other structures or processes can be used to fix the electric heating element 110 and the liquid cooling plate 120 together, and this is not limited to this embodiment.

[0050] As mentioned above, the upper and lower sides of the electric heating element 110 are bonded to the temperature diffusion layer 130 and the liquid cooling plate 120 via the second adhesive layer and the third adhesive layer, respectively, that is, the electric heating element 110 can be treated with double-sided adhesive.

[0051] like Figure 3 As shown, in one embodiment of this utility model, the liquid cooling plate 120 may include an upper plate 122, a flow channel 121, and a lower plate 123. Specifically, the upper plate 122 is located above the lower plate 123, that is, the upper plate 122 is located on the side of the lower plate 123 facing the electric heating element 110. The flow channel 121 is disposed between the upper plate 122 and the lower plate 123, and the flow channel 121, together with the upper plate 122 and the lower plate 123, forms a cooling flow channel that allows coolant to circulate. In some embodiments, the liquid cooling plate 120 may also adopt other structural forms, such as an integrated flow channel plate structure or an integrated cooling circulation pipeline structure, and is not limited to this embodiment.

[0052] like Figure 4As shown, based on the structural design of the liquid cooling plate 120, which includes an upper plate 122, a flow channel 121, and a lower plate 123, in one embodiment of this utility model, the upper plate 122 can be a heat spreader. This heat spreader includes a graphene-alloy composite material layer 1221 and two substrate layers 1222, which are respectively disposed on the upper and lower surfaces of the graphene-alloy composite material layer 1221. Through the above structural design, this utility model uses a heat spreader as the upper plate 122 of the liquid cooling plate 120, which has advantages such as light weight and good temperature uniformity.

[0053] Based on the structural design of the upper plate 122 as a heat spreader and including a graphene-alloy composite material layer 1221 and a substrate 1222, in one embodiment of this utility model, the graphene-alloy composite material layer 1221 may include at least two alternating low-temperature alloy layers and at least one graphene layer, and the uppermost and lowermost layers of the graphene-alloy composite material layer 1221 are both low-temperature alloy layers. In other words, the graphene-alloy composite material layer 1221 is connected to the upper and lower substrates 1222 respectively via the uppermost and lowermost two low-temperature alloy layers. For example, the material of the low-temperature alloy layer can be an alloy material composed of any two or more metals selected from indium, bismuth, tin, copper, aluminum, and nickel, and the melting point of the low-temperature alloy layer can be 150℃ to 500℃. In addition, the thickness of the graphene-alloy composite material layer 1221 can be adjusted according to specific application requirements, such as by adjusting the number of low-temperature alloy layers and graphene layers, or by adjusting the thickness of a single layer.

[0054] Based on the structural design of the upper plate 122 as a heat spreader and including a graphene-alloy composite material layer 1221 and a substrate 1222, in one embodiment of this utility model, the substrate 1222 can be made of aluminum alloy.

[0055] Based on the structural design of the liquid cooling plate 120, which includes an upper plate 122, a flow channel 121, and a lower plate 123, in one embodiment of this utility model, the material of the lower plate 123 can be aluminum.

[0056] In one embodiment of this invention, the lower protective film 140 can be a blue protective film (i.e., "blue film," PE film). Based on this, the lower protective film 140 can be electrostatically adhered to the lower surface of the liquid cooling plate 120. In other embodiments, the lower protective film 140 can also be made of other types of film materials, such as, but not limited to, PET protective film, and is not limited to this embodiment.

[0057] In one embodiment of this invention, the upper protective film 150 can be a blue protective film (i.e., "blue film," PE film). Based on this, the upper surface of the temperature diffusion layer 130 can be electrostatically bonded with the upper protective film 150. In other embodiments, the upper protective film 150 can also be made of other types of film materials, such as, but not limited to, PET protective film, and is not limited to this embodiment.

[0058] In one embodiment of this utility model, the first adhesive layer 160 can be acrylic PET double-sided adhesive.

[0059] Based on the structural design of the first adhesive layer 160 being acrylic-PET double-sided adhesive, in one embodiment of this utility model, the thickness of the acrylic-PET double-sided adhesive can be 5μm to 20μm, for example, 5μm, 7μm, 12μm, 15μm, 20μm, etc. Further, the thickness of the acrylic-PET double-sided adhesive is preferably 10μm. In some embodiments, the thickness of the acrylic-PET double-sided adhesive can also be less than 5μm or greater than 20μm, for example, 4.9μm, 21μm, etc., and is not limited to this embodiment.

[0060] In one embodiment of this utility model, the first adhesive layer 160 can be made of a transparent material.

[0061] It should be noted that the integrated heating and heat dissipation thermal management device 100 shown in the accompanying drawings and described in this specification is merely a few examples among many thermal management devices capable of employing the principles of this invention. It should be clearly understood that the principles of this invention are by no means limited to any detail or component of the integrated heating and heat dissipation thermal management device 100 shown in the accompanying drawings or described in this specification.

[0062] In summary, the integrated heating and heat dissipation thermal management device 100 proposed in this utility model includes an electric heating element 110, a liquid cooling plate 120, and a temperature diffusion layer 130. The liquid cooling plate 120 is disposed on the lower surface of the electric heating element 110, and a lower protective film 140 is disposed on the lower surface of the liquid cooling plate 120. The temperature diffusion layer 130 is disposed on the upper surface of the electric heating element 110. An upper protective film 150 is disposed on the upper surface of the temperature diffusion layer 130, and a first adhesive layer 160 is disposed on the upper surface of the upper protective film 150. The first adhesive layer 160 can bond and fix the individual battery cells 300. Through the above structural design, this utility model integrates the electric heating element 110 and the liquid cooling plate 120 together, realizing an integrated design of heating and heat dissipation functions, which helps to simplify the structure, reduce space occupation, and thus improve the energy density of the battery pack. At the same time, this utility model utilizes the temperature diffusion layer 130 to achieve heat diffusion during the heating process, improving the uniformity of the heating effect on the individual battery cells 300 in different areas. Based on this, the present invention uses the upper protective film 150 and the lower protective film 140 to provide protection for the entire device, in particular to prevent the temperature diffusion layer 130 from being exposed to the outer layer, thereby ensuring the temperature diffusion effect.

[0063] Based on the detailed description of several exemplary embodiments of the integrated heating and heat dissipation thermal management device 100 proposed in this utility model, the following will be combined with... Figure 5 An exemplary embodiment of the battery pack proposed in this utility model will be described. Wherein, Figure 5 The diagram shows a representative structural schematic of a battery pack that embodies the principles of this invention. Some parts of the battery pack structure, such as the cover plate, data acquisition components, and control components (e.g., BMS), are omitted. Based on this, some individual cells 300 and an integrated heating and heat dissipation thermal management device 100 are shown.

[0064] like Figure 5 As shown, in one embodiment of this utility model, the battery pack proposed by this utility model includes a battery housing 200 and a plurality of individual batteries 300. Specifically, the battery housing 200 includes a base plate, on which a heating and heat dissipation integrated thermal management device 100, which is proposed by this utility model and described in detail in the above embodiment, is disposed. The plurality of individual batteries 300 are supported on the heating and heat dissipation integrated thermal management device 100, specifically by bonding and fixing a first adhesive layer 160 to one side of the temperature diffusion layer 130 of the heating and heat dissipation integrated thermal management device 100.

[0065] It should be noted that the battery packs shown in the accompanying drawings and described in this specification are merely a few examples among many battery packs capable of employing the principles of this invention. It should be clearly understood that the principles of this invention are by no means limited to any detail or component of the battery packs shown in the accompanying drawings or described in this specification.

[0066] In summary, the battery pack proposed in this utility model, by adopting the integrated heating and heat dissipation thermal management device 100 proposed in this utility model, can achieve a high energy density, while also enabling the heating function of the individual battery cells 300 to have a relatively stable uniform temperature diffusion effect.

[0067] The foregoing has described and / or illustrated exemplary embodiments of the integrated heating and cooling thermal management device and battery pack proposed by this utility model in detail. However, the embodiments of this utility model are not limited to the specific embodiments described herein; rather, components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may also be used in combination with other components and / or steps of other embodiments. In describing the elements / components / etc. described and / or illustrated herein, the terms "a," "an," and "the above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising," "including," and "having" are used to indicate an open-ended inclusion and to mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc. Furthermore, the terms "first" and "second," etc., in the claims and specification are used only as illustrative marks and are not intended to limit the numerical scope of the object.

[0068] Although the integrated heating and heat dissipation thermal management device and battery pack of the present invention have been described according to different specific embodiments, those skilled in the art will recognize that modifications can be made to the implementation of the present invention within the spirit and scope of the claims.

Claims

1. A thermal management device integrating heating and heat dissipation, characterized in that, It is used to be installed at the bottom of the battery box of the battery pack and to support multiple individual batteries of the battery pack; the integrated heating and heat dissipation thermal management device includes an electric heating element, a liquid cooling plate and a temperature diffusion layer, the liquid cooling plate is disposed on the lower surface of the electric heating element, the lower surface of the liquid cooling plate is provided with a lower protective film, and the temperature diffusion layer is disposed on the upper surface of the electric heating element. The upper surface of the temperature diffusion layer is provided with an upper protective film, and the upper surface of the upper protective film is provided with a first adhesive layer, which can bond and fix the individual battery cells.

2. The integrated heating and heat dissipation thermal management device according to claim 1, characterized in that, The uniform temperature diffusion layer is a graphene film.

3. The integrated heating and heat dissipation thermal management device according to claim 1, characterized in that: The electric heating element is bonded to the temperature diffusion layer via a second adhesive layer, which is a thermally conductive structural adhesive; and / or The electric heating element and the liquid cooling plate are bonded together by a third adhesive layer, which is a thermally conductive structural adhesive.

4. The integrated heating and heat dissipation thermal management device according to claim 1, characterized in that, The liquid cooling plate includes an upper plate, a flow channel, and a lower plate. The upper plate is located above the lower plate, and the flow channel is disposed between the upper plate and the lower plate. The flow channel, together with the upper plate and the lower plate, forms a cooling flow channel that allows coolant to flow.

5. The integrated heating and heat dissipation thermal management device according to claim 4, characterized in that, The upper plate is a heat spreader, which includes a graphene-alloy composite material layer and two substrates, with the two substrates respectively disposed on the upper and lower surfaces of the graphene-alloy composite material layer.

6. The integrated heating and heat dissipation thermal management device according to claim 5, characterized in that: The graphene-alloy composite material layer comprises at least two alternating low-temperature alloy layers and at least one graphene layer, wherein the uppermost and lowermost layers are both low-temperature alloy layers, and the melting point of the low-temperature alloy layers is 150℃~500℃; and / or The substrate is made of aluminum alloy.

7. The integrated heating and heat dissipation thermal management device according to claim 4, characterized in that, The lower plate is made of aluminum.

8. The integrated heating and heat dissipation thermal management device according to claim 1, characterized in that: The lower protective film is a blue protective film or a PET protective film; and / or The upper protective film is a blue protective film or a PET protective film.

9. The integrated heating and heat dissipation thermal management device according to claim 1, characterized in that: The first adhesive layer is acrylic PET double-sided adhesive; and / or The first adhesive layer is made of a transparent material.

10. A battery pack, characterized in that, The device includes a battery housing and multiple individual batteries. The battery housing includes a base plate, on which an integrated heating and heat dissipation thermal management device as described in any one of claims 1 to 9 is disposed. The multiple individual batteries are supported on the integrated heating and heat dissipation thermal management device.

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