Battery device

Abstract

The present invention relates to a battery device including a stacked battery unit having two surfaces facing each other, two support frames each provided on a surface of the stacked battery unit and partially exposing the surface, two thermally conductive adhesive layers each provided on the surface of the stacked battery unit exposed by the support frames, and two thermally conductive plates each provided on the support frames and fixed onto the stacked battery unit by the thermally conductive adhesive layers.

Description

Technical Field

[0001] The present invention relates to electronic components, and particularly to battery devices. This application claims priority based on Korean Patent Application No. 10-2022-0160261 filed on November 25, 2022, and all the contents disclosed in the specification and drawings of that application are incorporated herein by reference.

Background Art

[0002] Portable electronic products (e.g., laptop computers) can provide the necessary power by including a battery device. However, the battery device affects the efficiency of the electronic product by generating heat during operation. Therefore, a method for effectively improving the heat dissipation efficiency of the battery device has emerged as an issue to be solved.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The problem to be solved by the present invention is to provide a battery device with excellent heat dissipation effect.

Means for Solving the Problems

[0004] The battery device according to the present invention includes one stacked battery unit having two surfaces facing each other, two support frames respectively provided on the surfaces of the stacked battery unit and partially exposing the surfaces, two thermally conductive adhesive layers respectively provided on the surfaces of the stacked battery unit exposed by the support frames, and two thermally conductive plates respectively provided on the support frames and fixed on the stacked battery unit by the thermally conductive adhesive layers.

[0005] In one embodiment of the present invention, the laminated battery unit includes a first battery unit, a second battery unit, and a support layer provided between the first battery unit and the second battery unit.

[0006] In one embodiment of the present invention, the first battery unit and the second battery unit each include a soft pack battery cell.

[0007] In one embodiment of the present invention, the material of the support layer includes plastic.

[0008] In one embodiment of the present invention, the material of each support frame includes plastic.

[0009] In one embodiment of the present invention, the thickness of each thermally conductive adhesive layer ranges from 0.125 mm to 0.5 mm.

[0010] In one embodiment of the present invention, the thermal conductivity of each thermally conductive plate is greater than the thermal conductivity of each thermally conductive adhesive layer.

[0011] In one embodiment of the present invention, the material of each thermally conductive plate includes stainless steel.

[0012] In one embodiment of the present invention, the thickness of each thermally conductive plate ranges from 0.05 mm to 0.2 mm.

[0013] In one embodiment of the present invention, it further includes two printed layers respectively provided on the thermally conductive plate and covering the thermally conductive plate.

Advantages of the Invention

[0014] As described above, in the battery device according to the invention of the present application, the heat conduction plate is fixed on the laminated battery unit by a thermally conductive adhesive layer. This corresponds to the surface of the laminated battery unit and increases the heat dissipation area of the laminated battery unit. Therefore, it is advantageous for the heat dissipation of the laminated battery unit. In addition, the laminated battery unit provides a good heat conduction path by the thermally conductive adhesive layer and the heat conduction plate, so that the temperature of the laminated battery unit is balanced and has preferable thermal stability. Therefore, the battery device according to the invention of the present application has a preferable heat dissipation effect and enables the laminated battery unit to have preferable thermal stability.

Brief Description of the Drawings

[0015]

Figure 1

Embodiments for Carrying Out the Invention

[0016] To make the above features and advantages of the invention of the present application clearer and easier to understand, the embodiments and the drawings will be referred to and described in detail as follows.

[0017] The invention of the present application can be understood by referring to the following detailed description and the drawings. It should be noted that in order to facilitate the understanding of the invention of the present application and simplify the drawings, the structures in the drawings are not drawn to actual scale. Also, the quantity and size of each component in the drawings are examples and do not limit the invention of the present application.

[0018] FIG. 1 is a diagram showing a battery device according to an embodiment of the present invention. According to FIG. 1, in the present embodiment, the battery device 100 includes one laminated battery unit 110, two support frames 120a and 120b, two thermally conductive adhesive layers 130a and 130b, and two heat conduction plates 140a and 140b. The laminated battery unit 110 has two surfaces S1 and S2 facing each other. The support frames 120a and 120b are respectively located on the surfaces S1 and S2 of the laminated battery unit 110, and partially expose the surfaces S1 and S2 respectively. The thermally conductive adhesive layers 130a and 130b are respectively provided on the surfaces S1 and S2 of the laminated battery unit 110 exposed by the support frames 120a and 120b. The heat conduction plates 140a and 140b are respectively provided on the support frames 120a and 120b, and are fixed on the laminated battery unit 110 by the thermally conductive adhesive layers 130a and 130b respectively.

[0019] Specifically, the battery device 100 according to the present embodiment is a battery device used in a notebook computer or other electronic products, but is not limited thereto. The laminated battery unit 110 includes a first battery unit 112, a second battery unit 114, and a support layer 116, and among them, the support layer 116 is provided between the first battery unit 112 and the second battery unit 114. In the first embodiment, the first battery unit 112 and the second battery unit 114 can each be a soft pack battery cell. In one embodiment, the material of the support layer 116 is plastic, such as polycarbonate (PC), but is not limited thereto. In one embodiment, the thickness of the support layer 116 is 0.2 mm, but is not limited thereto.

[0020] Also, referring to FIG. 1, in the present embodiment, the support frames 120a and 120b each include openings 122a and 122b. Also, the material of each support frame 120a and 120b is plastic, such as polycarbonate, but is not limited thereto. In one embodiment, the thickness of each support frame 120a and 120b is 0.2 mm, but is not limited thereto.

[0021] Also, the thermally conductive adhesive layers 130a and 130b in the present embodiment are respectively provided in the openings 122a and 122b of the support frames 120a and 120b, and are in direct contact with the surfaces S1 and S2 of the laminated battery unit 110 exposed by the support frames 120a and 120b. In one embodiment, the thickness T1 of each thermally conductive adhesive layer 130a and 130b is, for example, in the range of 0.125 mm to 0.5 mm. In one embodiment, the thermally conductive adhesive layers 130a and 130b are, for example, adhesive materials manufactured by 3M having a thermal conductivity of 0.6 W / mK, such as 3M TM 8805 (thickness 0.125 mm), 3M TM 8810 (thickness 0.25 mm), 3M TM 8815 (thickness 0.375 mm) or 3M TM 8820 (thickness 0.5 mm) modules, but are not limited thereto. In one embodiment, the thermally conductive adhesive layers 130a and 130b fill the openings 122a and 122b of the support frames 120a and 120b and are cut to coincide with the openings 122a and 122b. In one embodiment, the thermally conductive adhesive layers 130a and 130b can fill the openings 122a and 122b of the support frames 120a and 120b and extend on the support frames 120a and 120b.

[0022] Further, the heat conduction plates 140a and 140b according to the present embodiment are specifically flat plates, and the thermal conductivity of each of the heat conduction plates 140a and 140b is greater than that of each of the thermally conductive adhesive layers 130a and 130b. In one embodiment, the material of each of the heat conduction plates 140a and 140b may be stainless steel, for example, SUS304 or SUS316, and the thermal conductivities of SUS304 and SUS316 are 16.3 W / m°C, respectively. The thickness T2 of each of the heat conduction plates 140a and 140b is in the range of 0.05 mm to 0.2 mm. When the heat conduction plates 140a and 140b are SUS304, the thickness T2 is preferably 0.1 mm, and when the heat conduction plates 140a and 140b are SUS316, the thickness T2 is preferably 0.15 mm.

[0023] Also, the battery device 100 according to the present embodiment further includes two printing layers 150a and 150b, and the printing layers 150a and 150b are respectively provided on the heat conduction plates 140a and 140b and cover the heat conduction plates 140a and 140b. The printing layers 150a and 150b may include text or images and display information such as the model of the battery device 100. Therefore, the printing layers 150a and 150b may be referred to as label layers. In one embodiment, the thickness of the printing layers 150a and 150b is, for example, 0.1 mm.

[0024] As described above, in the battery device according to the present invention, the heat conduction plate is fixed on the stacked battery unit by the thermally conductive adhesive layer. This corresponds to the surface of the stacked battery unit and increases the heat dissipation area of the stacked battery unit. Therefore, it is advantageous for the heat dissipation of the stacked battery unit. In addition, the stacked battery unit provides a good heat conduction path by the thermally conductive adhesive layer and the heat conduction plate, so that the temperature of the stacked battery unit is balanced and has preferable thermal stability. Therefore, the battery device according to the present invention not only has a good heat dissipation effect (at least 3°C reduction), but also enables the stacked battery unit to have preferable thermal stability.

[0025] The present invention is described by the above-described embodiments, but is not limited thereto. Appropriate changes and modifications can be made by those of ordinary skill in the art without departing from the spirit of the present invention, and the protection scope of the present invention shall be based on the scope of the claims of the present invention.

Explanation of Reference Numerals

[0026] 100: Battery device 110: Stacked battery unit 112: First battery unit 114: Second battery unit 116: Support layer 120a, 120b: Support frame 122a, 122b: Opening 130a, 130b: Thermally conductive adhesive layer 140a, 140b: Heat conduction plate 150a, 150b: Printing layer S1, S2: Surface T1, T2: Thickness

Claims

1. One laminated battery unit having two surfaces facing each other, Two support frames respectively provided on the surfaces of the laminated battery unit and partially exposing the surfaces, Two thermally conductive adhesive layers respectively provided on the surfaces of the laminated battery unit exposed by the support frames, Two thermally conductive plates respectively provided on the support frames and fixed on the laminated battery unit by the thermally conductive adhesive layers, characterized in that the battery device comprises the same.

2. The laminated battery unit A first battery unit, A second battery unit, A support layer provided between the first battery unit and the second battery unit, characterized in that the battery device according to claim 1 comprises the same.

3. The first battery unit and the second battery unit each include a soft pack battery cell, characterized in that the battery device according to claim 2 comprises the same.

4. The material of the support layer includes plastic, characterized in that the battery device according to claim 2 or 3 comprises the same.

5. The material of each of the support frames includes plastic, characterized in that the battery device according to any one of claims 1 to 3 comprises the same.

6. The thickness of each of the thermally conductive adhesive layers ranges from 0.125 mm to 0.5 mm, characterized in that the battery device according to any one of claims 1 to 3 comprises the same.

7. The thermal conductivity of each of the thermally conductive plates is greater than the thermal conductivity of each of the thermally conductive adhesive layers, characterized in that the battery device according to any one of claims 1 to 3 comprises the same.

8. The material of each of the thermally conductive plates includes stainless steel, characterized in that the battery device according to any one of claims 1 to 3 comprises the same.

9. The thickness of each of the thermally conductive plates ranges from 0.05 mm to 0.2 mm, characterized in that the battery device according to any one of claims 1 to 3 comprises the same.

10. The battery device according to any one of claims 1 to 3 further includes two printing layers respectively provided on the thermally conductive plates and covering the thermally conductive plates.

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