A monolithic lithium battery structure
By employing a heat exchange outer shell, a heat-conducting inner shell, and an inner heat-conducting fin structure made of silicon carbide in a single-cell lithium battery, combined with the use of coolant, the problem of rapid heat accumulation in lithium batteries has been solved, thereby improving safety and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ANYIFU ELECTRONIC TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional single-cell lithium battery structures lack heat conduction and heat exchange structures, leading to rapid heat accumulation, which can easily cause overheating and short circuits, affecting performance and lifespan.
The heat exchange shell, heat-conducting inner shell, and inner heat-conducting fin structure are made of silicon carbide material and filled with coolant. The heat is dispersed through the inner heat-conducting fins and absorbed by the coolant, achieving effective heat conduction and heat exchange.
It effectively reduces the heating rate of lithium batteries, avoids overheating and short circuits, improves safety and lifespan, and provides structural strength protection.
Smart Images
Figure CN224582301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery technology, specifically a single-cell lithium battery structure. Background Technology
[0002] A lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. It differs from rechargeable lithium-ion batteries and lithium-ion polymer batteries. The lithium battery was invented by Thomas Edison. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental controls.
[0003] With the development of microelectronics technology at the end of the 20th century, miniaturized devices have become increasingly common, placing high demands on power supplies. Lithium batteries have thus entered a stage of large-scale practical application. Lithium batteries are divided into lithium battery packs and single-cell lithium batteries. In the traditional single-cell lithium battery structure, the lithium battery itself does not have a certain heat conduction and heat exchange structure. Therefore, during the use of single-cell lithium batteries, their heating rate is faster, which easily causes rapid heat accumulation. Lithium batteries are prone to short circuits or damage due to overheating, affecting the overall performance and lifespan of the single-cell lithium battery. To address this, this utility model proposes a single-cell lithium battery structure with its own heat conduction and heat exchange characteristics, which can effectively slow down the heating rate of the lithium battery and improve the battery performance. Utility Model Content
[0004] The purpose of this invention is to provide a single-cell lithium battery structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-cell lithium battery structure, including a heat exchange shell, a lithium battery body fixedly installed at the center of the heat exchange shell, a heat-conducting inner shell covering the outer surface of the lithium battery body, a plurality of inner heat-conducting fins fixedly installed on the outer surface of the heat-conducting inner shell, the plurality of inner heat-conducting fins being circumferentially distributed at equal intervals through the center point of the heat exchange shell, the top ends of the plurality of inner heat-conducting fins being fixedly connected to the inner wall of the heat exchange shell, the interior of the heat exchange shell being a hollow structure design, and the interior of the heat exchange shell being filled with coolant.
[0006] Preferably, the heat exchange outer shell, the heat-conducting inner shell, and the inner heat-conducting fins are all made of silicon carbide material.
[0007] Preferably, the coolant filling the heat exchange shell is a low-temperature or room-temperature coolant.
[0008] Preferably, the top of the heat exchange shell is fixedly encapsulated with an upper cover, and the outer surface of the upper cover is fixedly mounted with a positive electrode contact that is electrically connected to the lithium battery body.
[0009] Preferably, the bottom end of the heat exchange shell is fixedly encapsulated with a lower sealing plate, and a negative electrode contact that is electrically connected to the lithium battery body is fixedly installed on the lower sealing plate.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This invention effectively treats the heat generated by the lithium battery during operation by conducting heat and then exchanging it. Through its own heat exchange structure, it can effectively reduce the heating rate of the lithium battery, making the heating rate of the lithium battery slower and effectively delaying the heating rate of the lithium battery. It has a better heat absorption and heat exchange effect of the lithium battery, better assists the internal lithium battery in operation, and avoids the phenomenon of rapid heat accumulation and heating of the lithium battery during operation. This can effectively prevent the lithium battery from overheating and short circuit, better protect the lithium battery, improve the overall service life and quality of the lithium battery, and at the same time have high safety and greater practicality.
[0012] Furthermore, the heat exchange outer shell, heat-conducting inner shell, and inner heat-conducting fins made of silicon carbide in this utility model have good thermal conductivity and a certain structural strength in actual use. This can effectively provide high-strength structural protection for the internal lithium battery body, and has a certain high-strength protection effect for the internal structure. It effectively improves the overall structural strength of the single lithium battery of this utility model and has the practical characteristics of high-strength use. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the outer surface of the head of a single lithium battery according to an embodiment of the present invention;
[0014] Figure 2 This is a three-dimensional structural diagram of the outer surface of the tail section of a single-cell lithium battery according to an embodiment of the present invention.
[0015] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the heat exchange shell according to an embodiment of the present utility model;
[0016] Figure 4 This is a schematic diagram of the internal cross-sectional planar structure of a single lithium battery according to an embodiment of the present invention.
[0017] In the diagram: 1. Heat exchange outer shell; 2. Lithium battery body; 3. Thermally conductive inner shell; 4. Inner thermally conductive fins; 5. Coolant; 6. Upper cover; 7. Positive electrode contact; 8. Lower cover; 9. Negative electrode contact. Detailed Implementation
[0018] 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.
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Please see Figure 1-4 The present invention provides an embodiment of a single-cell lithium battery structure, including a heat exchange shell 1, a lithium battery body 2 fixedly installed at the center of the heat exchange shell 1, and a heat-conducting inner shell 3 wrapped around the outer surface of the lithium battery body 2. The heat-conducting inner shell 3 can provide wrapping protection for the outside of the lithium battery body 2, and at the same time can conduct heat to the generated heat.
[0022] Several internal heat-conducting fins 4 are fixedly installed on the outer surface of the heat-conducting inner shell 3. The several internal heat-conducting fins 4 are evenly distributed circumferentially through the central point of the heat exchange outer shell 1. The top of the several internal heat-conducting fins 4 are fixedly connected to the inner wall of the heat exchange outer shell 1. The heat conducted out through the heat-conducting inner shell 3 can be dispersed to the surrounding area through the internal heat-conducting fins 4. In this way, the heat conducted through the internal heat-conducting fins 4 can be finally transferred to the heat exchange outer shell 1.
[0023] The interior of the heat exchange shell 1 is a hollow structure design, and the interior of the heat exchange shell 1 is filled with coolant 5. The coolant 5 filled inside the heat exchange shell 1 is a low temperature or room temperature coolant.
[0024] As described above, the heat conducted through the inner heat-conducting fins 4 acts on the heat exchange shell 1. The coolant 5 inside the heat exchange shell 1 absorbs the heat generated by the lithium battery body 2 during operation, causing the coolant 5 to heat up. This achieves heat exchange after heat conduction, effectively preventing rapid heat accumulation on the outside of the lithium battery body 2 and providing a better heat exchange effect. In practical use, this invention, through the combined use of the above structure, effectively conducts heat to the lithium battery body 2 during operation, thereby effectively reducing the heating rate of the lithium battery body 2 and slowing down the heating process. This effectively delays the heating effect of the lithium battery, resulting in better heat absorption and exchange effects, better assisting the internal lithium battery body 2 in its operation, and preventing rapid heat accumulation and heating during operation. This effectively avoids overheating and short circuits in the lithium battery, providing better heat exchange protection for the lithium battery body 2, improving the overall service life and quality of the lithium battery, and also offering higher safety and greater practicality.
[0025] In this embodiment, the heat exchange outer shell 1, the heat-conducting inner shell 3, and the inner heat-conducting fin 4 are all made of silicon carbide. The heat exchange outer shell 1, the heat-conducting inner shell 3, and the inner heat-conducting fin 4 made of silicon carbide can have a certain structural strength while having a good thermal conductivity, so as to effectively provide high-strength structural protection for the internal lithium battery body 2 and have a certain high-strength protection effect for the internal structure.
[0026] In this embodiment, in order to use the single lithium battery of this utility model normally, the top of the heat exchange shell 1 is fixedly sealed with an upper cover 6, and the outer surface of the upper cover 6 is fixedly installed with a positive electrode contact 7 that is electrically connected to the lithium battery body 2.
[0027] Furthermore, a lower sealing plate 8 is fixedly encapsulated at the bottom of the heat exchange shell 1. A negative electrode contact 9 electrically connected to the lithium battery body 2 is fixedly installed on the lower sealing plate 8. In this way, the positive and negative electrodes of the lithium battery body can be connected to power normally through the positive electrode contact 7 and the negative electrode contact 9, ensuring normal use.
[0028] Working principle: This utility model can ensure normal positive and negative electrode connection of the lithium battery body through the positive electrode contact 7 and the negative electrode contact 9, ensuring normal use effect. Users can use the single lithium battery of this utility model through conventional use methods.
[0029] When this utility model is in use, the internal lithium battery body 2 will generate heat. The heat of the heated lithium battery body 2 can be conducted through the heat-conducting inner shell 3. The heat conducted through the heat-conducting inner shell 3 can be dispersed to the surrounding area through the inner heat-conducting fins 4. In this way, the heat conducted through the inner heat-conducting fins 4 can be finally transferred to the heat exchange outer shell 1.
[0030] This invention utilizes a heat exchange shell 1 filled with coolant 5. Heat conducted through the inner heat-conducting fins 4 is transferred to the heat exchange shell 1, thus absorbing the heat generated by the lithium battery 2 during operation. This process raises the temperature of the coolant 5, achieving heat exchange through conduction. This effectively prevents rapid heat accumulation on the outside of the lithium battery 2, resulting in superior heat exchange performance. In practical use, this invention, through the combined use of the above structure, effectively conducts heat generated by the lithium battery during operation. The subsequent heat exchange treatment, through its own heat exchange structure, can effectively reduce the heating rate of the lithium battery, making the heating rate of the lithium battery more slow down, effectively delaying the heating rate of the lithium battery, and having a better heat absorption and heat exchange effect of the lithium battery. It better assists the internal lithium battery in working and avoids the phenomenon of rapid heat accumulation and heating of the lithium battery during operation. This can effectively prevent the lithium battery from overheating and short circuit, better protect the lithium battery in heat exchange, improve the overall service life and quality of the lithium battery, and at the same time have higher safety and greater practicality.
[0031] Furthermore, the heat exchange outer shell 1, heat-conducting inner shell 3, and inner heat-conducting fins 4 made of silicon carbide in this utility model have good heat conduction effect and a certain structural strength in actual use. This can effectively provide high-strength structural protection for the internal lithium battery body 2, and has a certain high-strength protection effect for the internal structure. This effectively improves the overall structural strength of the single-cell lithium battery of this utility model and has the practical characteristics of high-strength use.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A single-piece lithium battery structure comprising a heat exchange enclosure (1), characterized in that, A lithium battery body (2) is fixedly installed at the center of the heat exchange shell (1). The outer surface of the lithium battery body (2) is wrapped with a heat-conducting inner shell (3). A number of inner heat-conducting fins (4) are fixedly installed on the outer surface of the heat-conducting inner shell (3). The number of inner heat-conducting fins (4) are circumferentially distributed at equal intervals through the center point of the heat exchange shell (1). The top of the number of inner heat-conducting fins (4) is fixedly connected to the inner wall of the heat exchange shell (1). The interior of the heat exchange shell (1) is a hollow structure design. The interior of the heat exchange shell (1) is filled with coolant (5).
2. The single-cell lithium battery structure according to claim 1, characterized in that: The heat exchange outer shell (1), the heat-conducting inner shell (3), and the inner heat-conducting fins (4) are all made of silicon carbide material.
3. The single-piece lithium battery structure of claim 1, wherein: The coolant (5) inside the heat exchange shell (1) is a low-temperature or room-temperature coolant.
4. The single-piece lithium battery structure of claim 1, wherein: The top of the heat exchange shell (1) is fixedly encapsulated with an upper cover (6), and the outer surface of the upper cover (6) is fixedly installed with a positive electrode contact (7) that is electrically connected to the lithium battery body (2).
5. The single-piece lithium battery structure of claim 1, wherein: The bottom end of the heat exchange shell (1) is fixedly encapsulated with a lower sealing plate (8), and a negative electrode contact (9) electrically connected to the lithium battery body (2) is fixedly installed on the lower sealing plate (8).