Lithium battery heat dissipation shell with graphdiyne heat conduction layer

By introducing a graphylene thermal conductive layer and heat dissipation components into the lithium battery heat dissipation casing, the problem of rapid heat generation in lithium batteries is solved, achieving efficient heat dissipation and ensuring the stability and safety of the battery.

CN224304745UActive Publication Date: 2026-05-29SHANDONG LINGKE NEW MATERIAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LINGKE NEW MATERIAL TECH CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing lithium battery heat dissipation casings are unable to quickly dissipate heat under the rapid heat generation of high-power lithium batteries, resulting in increased battery temperature, which affects battery performance and safety. Furthermore, traditional improvement methods increase weight or space occupation, compromising the compactness of the battery structure.

Method used

A lithium battery heat dissipation shell with a graphylene thermal conductive layer is adopted. Combined with heat dissipation components and thermal conductive components, the excellent thermal conductivity of graphylene is utilized to quickly absorb and conduct heat from multiple directions through a cooling fan and thermal conductive layer, increasing the air contact area to accelerate heat dissipation.

Benefits of technology

It achieves rapid reduction of battery temperature, reduces heat accumulation, ensures the stability and safety of lithium batteries, avoids performance degradation or safety risks, and does not increase weight or take up space.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224304745U_ABST
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Abstract

The utility model provides a lithium battery heat dissipation shell with graphite alkyne heat conducting layer, include: box body subassembly, box cover subassembly and heat conducting component, the inside surface of box body subassembly and the inside surface of box cover are installed respectively with a layer of heat conducting component for heat dissipation, and the box body subassembly includes the box body for installing lithium battery, compared with prior art, the utility model has the following beneficial effects: through setting up the heat dissipation piece, in the box body body with graphite alkyne layer when using, the heat dissipation piece is installed outside the box body body, can increase the contact area with air, accelerate heat dissipation, cooperate heat conducting component and rapidly conduct the heat generated by battery to the outside of box body body, the synergistic effect of both, can reduce battery temperature fast, reduce heat accumulation, effectively avoid the performance decline or security risk of battery due to overheating, guarantee the stability and security of lithium battery in the use process.
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Description

Technical Field

[0001] This utility model belongs to the field of battery equipment, and specifically relates to a lithium battery heat dissipation shell with a graphdiyne thermal conductive layer. Background Technology

[0002] The heat dissipation casing of a lithium battery is a crucial component, primarily used to enclose and protect the battery cells. However, current lithium battery heat dissipation casings suffer from several shortcomings. Regarding heat conduction, the limited thermal conductivity of the casing material itself—while common metals possess some thermal conductivity—is insufficient to quickly dissipate heat from the battery's interior in the face of the rapid and substantial heat generation of high-power lithium batteries. This leads to heat accumulation inside the battery, causing its temperature to rise. A conventional solution is to increase the thickness of the metal material, but this significantly increases battery weight and cost, which is extremely disadvantageous in weight-sensitive applications (such as electric vehicles and drones). From a heat dissipation perspective, traditional heat dissipation casings often rely solely on simple heat sinks or ventilation holes, resulting in insufficient heat dissipation area and low air convection efficiency. During peak battery heat generation, heat cannot be effectively dissipated to the surrounding environment. While increasing the size of the heat sinks or the number of ventilation holes can improve this, it occupies more space, compromises the overall compactness of the battery structure, and may reduce battery protection performance, making the battery more susceptible to external environmental factors and affecting its lifespan and performance. Therefore, a new structure is needed to address these technical problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a lithium battery heat dissipation casing with a graphdiyne thermal conductive layer, thereby solving the problems mentioned in the background section.

[0004] This utility model is achieved through the following technical solution: a lithium battery heat dissipation housing with a graphdiyne thermal conductive layer, comprising: a housing assembly, a cover assembly, and a thermal conductive assembly. The inner surface of the housing assembly and the inner surface of the cover are respectively equipped with a thermal conductive assembly for heat dissipation. The housing assembly includes a housing body for mounting the lithium battery. A heat dissipation component is installed on the outer surface of the housing body. The cover assembly is hinged to the upper surface of the housing body via a hinge. The cover assembly includes a cover body. A locking component for locking is installed on the outer surface of the cover body.

[0005] In a preferred embodiment, the upper surface of the box body is designed to be open, a pad is installed at the bottom inside the box body, the hinge includes a hinge seat one and a hinge seat two, and a hinge seat one is installed on the upper edge of the rear surface of the box body.

[0006] In a preferred embodiment, a second hinge seat is installed on the rear surface of the cover body, and the first hinge seat is hinged to the second hinge seat. A lithium battery is fixedly installed inside the cover body. The heat dissipation component includes a cooling fan and a filter plate. In use, the heat dissipation component is installed on the outside of the cover body in the lithium battery heat dissipation shell with a graphdiyne thermal conductive layer. This increases the contact area with air and accelerates heat dissipation. Together with the heat conduction component, the heat generated by the battery is quickly conducted to the outside of the shell body. The two work together to quickly reduce the battery temperature, reduce heat accumulation, effectively avoid performance degradation or safety risks caused by overheating, and ensure the stability and safety of the lithium battery during use.

[0007] In a preferred embodiment, three filters are evenly installed on the front surface of the box body, and a cooling fan is installed on the front surface of the box body. The number and position of the cooling fans are matched with the number and position of the cooling fans, and filter plates are installed on the front surface of the multiple cooling fans.

[0008] In a preferred embodiment, two locking fasteners are symmetrically installed on the front surface of the lid body, and the lid body is connected to the box body through the locking fasteners. A power interface for connection is provided on the upper surface of the lid body.

[0009] In a preferred embodiment, the heat-conducting component includes a heat-conducting layer one and a heat-conducting layer two. The structure of the heat-conducting layer two matches the structure of the lower surface of the lid body, the structure of the heat-conducting layer two matches the structure of the inner wall of the box body, and the composition structure of the heat-conducting layer one matches the composition structure of the heat-conducting layer two.

[0010] In a preferred embodiment, the heat-conducting layer includes a metal plate layer, a graphyne layer, and a ceramic layer. The metal plate layer is mounted on the inner surface of the ceramic layer, and the graphyne layer is mounted on the inner surface of the metal plate layer. The inner surface of the graphyne layer is connected to the outer surface of the lithium battery, and the outer surface of the ceramic layer is connected to the inner surfaces of the housing body and the cover body. In use, the heat-conducting layer assembly, mainly composed of the graphyne layer, mounted on the inner side of the housing body and the cover body in the lithium battery heat dissipation casing, can quickly absorb battery heat from multiple directions. Thanks to the excellent thermal conductivity of graphyne, efficient heat transfer is achieved.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting heat dissipation components, the box assembly includes a box body for installing lithium batteries. Heat dissipation components are installed on the outer surface of the box body. In use, in the box body with graphdiyne layer, the heat dissipation components installed on the outer side of the box body can increase the contact area with air and accelerate heat dissipation. Together with the heat conduction components, the heat generated by the battery is quickly conducted to the outer side of the box body. The two work together to quickly reduce the battery temperature, reduce heat accumulation, effectively avoid performance degradation or safety risks caused by overheating of the battery, and ensure the stability and safety of the lithium battery during use.

[0012] 2. By setting up heat-conducting components, a heat-conducting component for heat dissipation is installed on the inner surface of the box body and the inner surface of the box cover. The heat-conducting component includes heat-conducting layer one and heat-conducting layer two. In use, in the lithium battery heat dissipation shell, the heat-conducting layer components mainly composed of graphdiyne layer installed on the inner side of the box body and the box cover can quickly absorb battery heat from multiple directions. With the excellent thermal conductivity of graphdiyne, efficient heat transfer is achieved. Combined with the first effect, it ensures the stable and reliable operation of the lithium battery. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of a lithium battery heat dissipation shell with a graphdiyne thermal conductive layer according to the present invention.

[0015] Figure 2 This is a schematic diagram of a housing assembly for a lithium battery heat dissipation shell with a graphdiyne thermal conductive layer according to the present invention.

[0016] Figure 3 This is a schematic diagram of a heat-conducting component for a lithium battery heat dissipation shell with a graphdiyne thermal conductive layer according to the present invention.

[0017] In the diagram, 100 is the main body of the box, 101 is the filter screen, 110 is the pad, 120 is the cooling fan, and 130 is the filter plate.

[0018] 200 - Lid body, 210 - Locking fastener, 220 - Power interface;

[0019] 300 - Thermal conductive layer one, 310 - Thermal conductive layer two. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3 As the first embodiment of this utility model: a lithium battery heat dissipation housing with a graphdiyne thermal conductive layer, comprising: a housing assembly, a cover assembly and a thermal conductive assembly, wherein a thermal conductive assembly for heat dissipation is respectively installed on the inner surface of the housing assembly and the inner surface of the cover, the housing assembly includes a housing body 100 for mounting the lithium battery, a heat dissipation component is installed on the outer surface of the housing body 100, and a cover assembly is hinged to the upper surface of the housing body 100 by a hinge, the cover assembly includes a cover body 200, and a locking fastener 210 for locking is installed on the outer surface of the cover body 200;

[0022] The upper surface of the box body 100 is designed to be open. A pad 110 is installed at the bottom inside the box body 100. The hinge includes a hinge seat 140 and a hinge seat 2. The upper edge of the rear surface of the box body 100 is fitted with a hinge seat 140.

[0023] A hinge seat 2 is installed on the rear surface of the box cover body 200. The hinge seat 140 is hinged to the hinge seat 2. A lithium battery is fixedly installed inside the box body 100. The heat dissipation components include a cooling fan 120 and a filter plate 130.

[0024] Three filters 101 are evenly installed on the front surface of the box body 100. A cooling fan 120 is installed on the front surface of the box body 100. The number and position of the cooling fan 120 match the number and position of the cooling fan 120. A filter plate 130 is installed on the front surface of the multiple cooling fans 120.

[0025] Two locking fasteners 210 are symmetrically installed on the front surface of the lid body 200. The lid body 200 is connected to the box body 100 through the locking fasteners 210. A power interface 220 for connection is provided on the upper surface of the lid body 200.

[0026] In use, the user first installs the lithium battery inside the housing 100, fixing it to the upper surface of the pad 110. This prevents the lithium battery from directly contacting the bottom of the housing 100, creating a gap for heat dissipation (lithium batteries are existing technology; their specific structure and installation principle are not detailed here). After installing the lithium battery inside the housing 100, the user can then pass the battery's power cable through the power interface 220 and close the lid 200 using the locking clip 210. At this point, the housing 100 and lid 200 together protect the lithium battery. When the lithium battery is working, the cooling fan 120 on the outer surface of the housing 100 works synchronously with the filter plate 130 to dissipate the heat generated by the lithium battery through the heat-conducting components and the housing components. Because the housing 100 has a graphdiyne layer and a heat sink is installed on the outside of the housing 100, the contact area with the air can be increased, accelerating heat dissipation. Together with the heat-conducting components, the heat generated by the battery is quickly conducted to the outside of the housing 100. The two work together to quickly reduce the battery temperature, reduce heat accumulation, effectively avoid performance degradation or safety risks caused by overheating, and ensure the stability and safety of the lithium battery during use.

[0027] Please see Figures 1 to 3 As a second embodiment of this utility model: based on the description in the above embodiments, the heat-conducting component further includes a heat-conducting layer 300 and a heat-conducting layer 310. The structure of the heat-conducting layer 310 matches the structure of the lower surface of the box cover body 200, the structure of the heat-conducting layer 310 matches the inner wall structure of the box body 100, and the composition structure of the heat-conducting layer 300 matches the composition structure of the heat-conducting layer 310.

[0028] The thermal conductive layer 300 includes a metal plate layer, a graphdiyne layer and a ceramic layer. The metal plate layer is installed on the inner surface of the ceramic layer, and the graphdiyne layer is installed on the inner surface of the metal plate layer. The inner surface of the graphdiyne layer is connected to the outer surface of the lithium battery, and the outer surface of the ceramic layer is connected to the inner surface of the box body 100 and the box cover body 200.

[0029] When the lithium battery is cooled through the operation steps of the first embodiment, the heat of the lithium battery is directly transferred to the graphyne layer, and then the graphyne layer quickly transfers the heat to the metal plate layer (the metal plate layer is made of brass, which can work well with the graphyne layer to achieve good thermal conductivity). Then the metal plate layer dissipates the heat through the housing body 100 and the ceramic layer. Subsequent heat dissipation is then carried out through the operation steps of the first embodiment. Because the thermally conductive layer components mainly composed of the graphyne layer are installed inside the housing body 100 and the cover body 200 in the lithium battery heat dissipation housing, they can quickly absorb the battery heat from multiple directions. With the excellent thermal conductivity of graphyne, efficient heat transfer is achieved. Combined with the first effect, this ensures the stable and reliable operation of the lithium battery.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery heat dissipation casing with a graphdiyne thermally conductive layer, comprising: A housing assembly, a lid assembly, and a heat-conducting assembly, characterized in that a heat-conducting assembly for heat dissipation is respectively installed on the inner surface of the housing assembly and the inner surface of the lid, the housing assembly includes a housing body (100) for installing a lithium battery, a heat dissipation component is installed on the outer surface of the housing body (100), and a lid assembly is hinged to the upper surface of the housing body (100) by a hinge, the lid assembly includes a lid body (200), and a locking fastener (210) for locking is installed on the outer surface of the lid body (200).

2. The lithium battery heat dissipation casing with a graphdiyne thermally conductive layer as described in claim 1, characterized in that: The upper surface of the box body (100) is designed to be open. A pad (110) is installed at the bottom inside the box body (100). The hinge includes a hinge seat one (140) and a hinge seat two. The upper edge of the rear surface of the box body (100) is fitted with a hinge seat one (140).

3. A lithium battery heat dissipation casing with a graphdiyne thermally conductive layer as described in claim 2, characterized in that: The rear surface of the box cover body (200) is equipped with a second hinge seat, and the first hinge seat (140) is hinged to the second hinge seat. A lithium battery is fixedly installed inside the box body (100). The heat dissipation component includes a cooling fan (120) and a filter plate (130).

4. A lithium battery heat dissipation casing with a graphdiyne thermally conductive layer as described in claim 3, characterized in that: Three filters (101) are evenly installed on the front surface of the box body (100). A cooling fan (120) is installed on the front surface of the box body (100). The number and position of the cooling fan (120) match the number and position of the cooling fan (120). A filter plate (130) is installed on the front surface of multiple cooling fans (120).

5. A lithium battery heat dissipation casing with a graphdiyne thermally conductive layer as described in claim 4, characterized in that: Two locking fasteners (210) are symmetrically installed on the front surface of the lid body (200). The lid body (200) is connected to the box body (100) through the locking fasteners (210). A power interface (220) for connection is provided on the upper surface of the lid body (200).

6. A lithium battery heat dissipation casing with a graphdiyne thermally conductive layer as described in claim 5, characterized in that: The heat-conducting component includes a heat-conducting layer one (300) and a heat-conducting layer two (310). The structure of the heat-conducting layer two (310) matches the structure of the lower surface of the lid body (200). The structure of the heat-conducting layer two (310) matches the structure of the inner wall of the box body (100). The composition structure of the heat-conducting layer one (300) matches the composition structure of the heat-conducting layer two (310).

7. A lithium battery heat dissipation casing with a graphdiyne thermally conductive layer as described in claim 6, characterized in that: The heat-conducting layer 1 (300) includes a metal plate layer, a graphdiyne layer and a ceramic layer. The metal plate layer is installed on the inner surface of the ceramic layer, and the graphdiyne layer is installed on the inner surface of the metal plate layer. The inner surface of the graphdiyne layer is connected to the outer surface of the lithium battery, and the outer surface of the ceramic layer is connected to the inner surface of the box body (100) and the box cover body (200).