Packaging structure of solid-state battery

Abstract

The utility model provides an encapsulation structure of a solid-state battery, which relates to the technical field of solid-state batteries and comprises an encapsulation shell, a cover plate covering the upper end of the encapsulation shell, a plurality of ventilation through holes arranged on the side wall of the encapsulation shell, elastic blocks arranged on the inner wall of the encapsulation shell, and a solid-state battery main body arranged in the encapsulation shell. The outer wall of the solid-state battery body abuts against the outer wall of the elastic block. According to the solid-state battery, the plurality of ventilation through holes are formed in the side wall of the packaging shell, so that the exterior of the packaging shell can be communicated with the interior of the packaging shell, rapid heat dissipation of the solid-state battery main body is facilitated, sealed packaging of the solid-state battery main body is avoided, the heat dissipation performance of the packaging structure is improved, and the service life of the solid-state battery main body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state batteries, and in particular to a packaging structure of a solid-state battery. Background Art

[0002] Solid-state batteries are a new type of battery technology. Compared with traditional liquid lithium batteries, solid-state batteries have the advantages of higher energy density, faster charging speed, higher safety and longer service life. The principle of solid-state batteries is similar to that of traditional batteries, but the electrolyte used is solid instead of liquid. Between the positive and negative electrodes of the solid-state battery, there is a solid electrolyte as a channel for ion migration, so that the battery can store more energy. At the same time, solid-state batteries can operate at lower temperatures and there is no risk of flammability. Therefore, compared with traditional liquid lithium batteries, solid-state batteries are safer. The battery packaging structure is an important component of the battery. Its main function is to protect the internal structure of the battery and prevent the external environment from damaging the battery.

[0003] For example, the utility model with the authorization announcement number "CN218525687U" provides a battery packaging structure, including a packaging shell, a cover plate arranged at the port of the packaging shell, a handle fixed on the cover plate, and a battery board arranged inside the packaging shell, the packaging shell is provided with two T-shaped grooves, two connecting rods A are fixed on the cover plate, the ends of the connecting rods A are fixed with a clamping joint, the inside of the T-shaped grooves are inserted with connecting rods B, the lower ends of the connecting rods B are fixed with a circular plate, the lower surface of the circular plate is fixed with a clamping block, the outer surface of the connecting rods B is sleeved with a spring A, the upper ends of the two connecting rods B are fixed with a connecting plate, and the inside of the packaging shell is provided with a clamping assembly that can clamp and fix the battery board. The utility model can conveniently package and disassemble the battery board through the utility model, thereby facilitating the maintenance and replacement of the battery board, and the battery board can be limited and fixed by setting the clamping assembly, so that the battery board will not collide with the inner wall of the packaging shell, thereby protecting the battery board.

[0004] However, the battery will generate heat during use, and the above packaging structure seals the battery, which is not conducive to the heat dissipation of the battery and reduces the service life of the battery. Utility Model Content

[0005] The utility model provides a packaging structure of a solid-state battery, which is used to solve the technical problem that the current packaging structure seals the battery, is not conducive to the heat dissipation of the battery, and reduces the service life of the battery.

[0006] In order to solve the above technical problems, the utility model discloses a packaging structure of a solid-state battery, including: a packaging shell, a cover plate is provided on the upper end of the packaging shell, a plurality of ventilation holes are provided on the side walls of the packaging shell, elastic blocks are provided on the inner walls of the packaging shell, a solid-state battery body is provided in the packaging shell, and the outer wall of the solid-state battery body abuts against the outer wall of the elastic block.

[0007] Preferably, a cavity is provided inside the elastic block.

[0008] Preferably, a plurality of vent holes are provided on the side wall of the elastic block, one end of the vent hole is communicated with the interior of the cavity, and the other end of the vent hole is communicated with the interior of the packaging shell.

[0009] Preferably, one end of the ventilation through hole is communicated with the outside of the packaging shell, and the other end of the ventilation through hole is communicated with the inside of the packaging shell.

[0010] Preferably, two handles are symmetrically arranged on the upper surface of the cover plate.

[0011] Preferably, a positive terminal and a negative terminal are respectively arranged at the upper end of the solid-state battery body, and a positive wiring hole and a negative wiring hole are respectively arranged on the cover plate, the positive terminal corresponds to the positive wiring hole, and the negative terminal corresponds to the negative wiring hole.

[0012] Preferably, mounting holes are provided through the four corners of the cover plate, connecting bolts are provided in the mounting holes, threaded holes are provided at the four corners of the upper end of the packaging shell, the threaded holes correspond to the mounting holes one by one, and the cover plate is connected to the upper end of the packaging shell through the connecting bolts.

[0013] Preferably, a clamping assembly is provided on the lower surface of the cover plate, and the clamping assembly includes two fixed blocks symmetrically arranged on the lower surface of the cover plate, a sliding rod is provided between the two fixed blocks, a sliding block is slidably provided on the sliding rod, a guide tube is provided at the lower end of the sliding block, a clamping spring is provided in the guide tube, the upper end of the clamping spring is connected to the lower surface of the sliding block, the lower end of the clamping spring is connected to the upper end of the clamping column, the upper end of the clamping column is slidably connected to the inner wall of the guide tube, a clamping plate is provided at the lower end of the clamping column, and the lower surface of the clamping plate abuts against the upper surface of the solid-state battery body.

[0014] Preferably, the pressing plate is made of elastic anti-slip material.

[0015] Preferably, buffer springs are symmetrically arranged at both ends of the slider, the buffer springs are sleeved on the sliding rod, one end of the buffer spring is connected to the side wall of the slider, and the other end of the buffer spring is connected to the side wall of the fixed block.

[0016] The technical solution of the utility model has the following advantages: the utility model provides a packaging structure of a solid-state battery, which relates to the technical field of solid-state batteries, including a packaging shell, a cover plate is provided on the upper end of the packaging shell, a plurality of ventilating holes are provided on the side wall of the packaging shell, elastic blocks are provided on the inner wall of the packaging shell, a solid-state battery body is provided in the packaging shell, and the outer wall of the solid-state battery body abuts against the outer wall of the elastic block. In the utility model, by providing a plurality of ventilating holes on the side wall of the packaging shell, the outside of the packaging shell can be connected with the inside of the packaging shell, which is convenient for rapid heat dissipation of the solid-state battery body, avoids the sealed packaging of the solid-state battery body, improves the heat dissipation of the packaging structure, and prolongs the service life of the solid-state battery body.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the devices specifically pointed out in the written description and the drawings of the description.

[0018] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a solid-state battery packaging structure of the utility model;

[0021] Figure 2 This is a top view of the cover plate in the utility model;

[0022] Figure 3 For this utility model Figure 1 A magnified view of the structure at center;

[0023] Figure 4 For this utility model Figure 1 Enlarged view of the structure at point B in the middle.

[0024] In the figure: 1. packaging shell; 2. cover plate; 3. ventilation hole; 4. elastic block; 5. solid-state battery body; 6. ventilation hole; 7. handle; 8. positive terminal; 9. negative terminal; 10. positive terminal hole; 11. negative terminal hole; 12. fixing block; 13. sliding rod; 14. slider; 15. guide tube; 16. clamping spring; 17. clamping column; 18. clamping plate; 19. buffer spring. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] Embodiment 1:

[0028] The present invention provides a packaging structure of a solid-state battery. Figure 1-Figure 4 As shown, it includes: a packaging shell 1, a cover plate 2 is provided on the upper end of the packaging shell 1, a plurality of ventilation holes 3 are provided on the side wall of the packaging shell 1, elastic blocks 4 are provided on the inner wall of the packaging shell 1, a solid-state battery body 5 is provided in the packaging shell 1, and the outer wall of the solid-state battery body 5 abuts against the outer wall of the elastic block 4.

[0029] The working principle and beneficial effects of the above technical solution are as follows: since the electrolyte of the solid-state battery is solid, its packaging method is different from that of the traditional liquid lithium battery. The packaging of the solid-state battery does not need to consider the sealing of the liquid lithium battery during packaging. Therefore, the packaging of the solid-state battery focuses more on the shockproof and heat dissipation of the battery. The packaging structure of the solid-state battery in the present application is suitable for the packaging of a small solid-state battery body 5. Elastic blocks 4 are arranged on the inner wall of the front, back, left, right and rear sides of the packaging shell 1. The elastic blocks 4 are fixedly connected to the inner wall of the packaging shell 1. The solid-state battery body 5 is located between the elastic blocks 4. The elastic blocks 4 are made of elastic material. When the packaging shell 1 is subjected to severe external vibration, the elastic blocks 4 can absorb the vibration buffer, thereby avoiding the solid-state battery body 5 from being damaged by severe vibration, and improving the stability and reliability of the solid-state battery body 5. By arranging a number of ventilated through holes 3 on the side wall of the packaging shell 1, the outside of the packaging shell 1 can be connected to the inside of the packaging shell 1, which is convenient for the rapid heat dissipation of the solid-state battery body 5, avoiding the sealed packaging of the solid-state battery body 5, improving the heat dissipation of the packaging structure, and extending the service life of the solid-state battery body 5.

[0030] Example 2

[0031] On the basis of the above-mentioned embodiment 1, Figure 1 As shown, a cavity is provided inside the elastic block 4 .

[0032] The working principle and beneficial effects of the above technical solution are as follows: air is stored in the cavity. When the elastic block 4 is subjected to a severe impact by the solid-state battery body 5, the elastic block 4 will be deformed toward the cavity after being squeezed. The air can play a buffering role, further improving the protection effect on the solid-state battery body 5 and avoiding damage to the solid-state battery body 5 due to collision.

[0033] Example 3

[0034] On the basis of Example 2, Figure 3 , Figure 4 As shown, a plurality of vent holes 6 are provided on the side wall of the elastic block 4 , one end of the vent hole 6 is connected to the inside of the cavity, and the other end of the vent hole 6 is connected to the inside of the packaging shell 1 .

[0035] The working principle and beneficial effects of the above technical scheme are as follows: a vent hole 6 is arranged on the side wall of the elastic block 4. When the packaging shell 1 shakes violently, the solid-state battery body 5 shakes in the packaging shell 1, thereby compressing part of the elastic block 4. When the elastic block 4 is compressed, the air inside the cavity can be discharged from the cavity to the inside of the packaging shell 1, and then discharged to the outside of the packaging shell 1 through the air-permeable through hole 3 of the packaging shell 1. The air flows rapidly along the outer wall of the solid-state battery body 5, which can take away the heat generated by the solid-state battery body 5, accelerate the heat dissipation, and improve the heat dissipation performance. The elastic block 4 can return to its original position under the action of its own elasticity, thereby re-extracting air, further accelerating the circulation of the air inside the packaging shell 1, and an air inlet check valve is arranged in a part of the air holes 6, and an air outlet check valve is arranged in another part of the air holes 6, which can slow down the compression speed of the elastic block 4, thereby improving the buffering effect of the elastic block 4.

[0036] Example 4

[0037] On the basis of any one of embodiments 1-3, one end of the ventilation hole 3 is connected to the outside of the packaging shell 1, and the other end of the ventilation hole 3 is connected to the inside of the packaging shell 1.

[0038] The working principle and beneficial effects of the above technical solution are as follows: the ventilation holes 3 are respectively arranged on the upper and lower sides of the outer wall of the packaging shell 1, and a plurality of ventilation holes 3 are arranged at equal intervals along the outer circumference of the packaging shell 1, which can make the heat dissipation of the packaging shell 1 more uniform.

[0039] Example 5

[0040] On the basis of any one of Examples 1-4, Figure 2 As shown, two handles 7 are symmetrically arranged on the upper surface of the cover plate 2 .

[0041] The working principle and beneficial effects of the above technical solution are as follows: since the solid-state battery body 5 is a small solid-state battery, a handle 7 is provided on the cover plate 2, and the cover plate 2 and the packaging shell 1 can be lifted by the handle 7, which not only facilitates the taking of the cover plate 2, but also facilitates the movement of the packaging structure.

[0042] Example 6

[0043] On the basis of any one of Examples 1-5, Figure 1 As shown, a positive terminal 8 and a negative terminal 9 are respectively arranged at the upper end of the solid-state battery body 5, and a positive wiring hole 10 and a negative wiring hole 11 are respectively arranged on the cover plate 2, the positive terminal 8 corresponds to the positive wiring hole 10, and the negative terminal 9 corresponds to the negative wiring hole 11.

[0044] The working principle and beneficial effects of the above technical solution are as follows: the positive terminal 8 at the upper end of the solid-state battery body 5 is connected to the positive electrode inside the solid-state battery body 5, and the negative terminal 9 at the upper end of the solid-state battery body 5 is connected to the negative electrode inside the solid-state battery body 5. The positive terminal 8 can be connected to the positive cable, and the positive cable extends to the outside of the cover plate 2 through the positive wiring hole 10. The negative terminal 9 is connected to the negative cable, and the negative cable extends to the outside of the cover plate 2 through the negative wiring hole 11. The diameter of the positive cable is smaller than the diameter of the positive wiring hole 10, which facilitates the positive cable to slide up and down in the positive wiring hole 10. The diameter of the negative cable is smaller than the diameter of the negative wiring hole 11, which facilitates the negative cable to slide up and down in the negative wiring hole 11.

[0045] Example 7

[0046] On the basis of any one of Examples 1-6, mounting holes are set through the four corners of the cover plate 2, connecting bolts are set in the mounting holes, threaded holes are set at the four corners of the upper end of the packaging shell 1, the threaded holes correspond to the mounting holes one by one, and the cover plate 2 is connected to the upper end of the packaging shell 1 through the connecting bolts.

[0047] The working principle and beneficial effects of the above technical solution are as follows: the cover plate 2 is connected to the packaging shell 1 by connecting bolts, which can realize the rapid disassembly and assembly of the cover plate 2, and facilitate the installation of the solid-state battery body 5.

[0048] Example 8

[0049] On the basis of any one of Examples 1-7, Figure 1 , Figure 3As shown, a clamping assembly is arranged on the lower surface of the cover plate 2, and the clamping assembly includes two fixed blocks 12 symmetrically arranged on the lower surface of the cover plate 2, a sliding rod 13 is arranged between the two fixed blocks 12, a sliding block 14 is slidably arranged on the sliding rod 13, a guide tube 15 is arranged at the lower end of the sliding block 14, a clamping spring 16 is arranged in the guide tube 15, the upper end of the clamping spring 16 is connected to the lower surface of the sliding block 14, the lower end of the clamping spring 16 is connected to the upper end of a clamping column 17, the upper end of the clamping column 17 is slidably connected to the inner wall of the guide tube 15, a clamping plate 18 is arranged at the lower end of the clamping column 17, and the lower surface of the clamping plate 18 abuts against the upper surface of the solid-state battery body 5.

[0050] The working principle and beneficial effects of the above technical solution are as follows: the fixed block 12 is fixedly connected to the lower surface of the cover plate 2, the left and right ends of the sliding rod 13 are respectively fixedly connected to the side walls of the two fixed blocks 12, and the upper surface of the sliding block 14 is slidably connected to the lower surface of the cover plate 2. When the cover plate 2 is installed, the clamping plate 18 is aligned with the upper surface of the solid-state battery body 5, so that the solid-state battery body 5 is pressed into the packaging shell 1. Under the action of the clamping spring 16 and the elastic block 4 at the bottom, the solid-state battery body 5 is more stable inside the packaging shell 1. When the packaging shell 1 is subjected to external vibration, the solid-state battery body 5 shakes in the packaging shell 1. The elastic blocks 4 on the front, back, left and right of the solid-state battery body 5 can dampen the vibrations received by the solid-state battery body 5 in four directions. The clamping plate 18 is in close contact with the upper surface of the solid-state battery body 5, and the clamping column 17 can drive the clamping spring 16 to undergo elastic deformation when the solid-state battery body 5 shakes up and down, thereby preventing the solid-state battery body 5 from being damaged.

[0051] Example 9

[0052] On the basis of Embodiment 8, the pressing plate 18 is made of elastic anti-slip material.

[0053] The working principle and beneficial effects of the above technical solution are as follows: the clamping plate 18 can be made of elastic anti-slip materials such as anti-slip rubber, can be tightly connected to the upper surface of the solid-state battery body 5, and can reduce the intensity of the up and down shaking of the solid-state battery body 5, which is beneficial to protecting the solid-state battery body 5 and extending the service life of the solid-state battery body 5.

[0054] Example 10

[0055] On the basis of Example 8 or 9, Figure 3 As shown, buffer springs 19 are symmetrically arranged at both ends of the slider 14 , the buffer spring 19 is sleeved on the sliding rod 13 , one end of the buffer spring 19 is connected to the side wall of the slider 14 , and the other end of the buffer spring 19 is connected to the side wall of the fixed block 12 .

[0056] The working principle and beneficial effects of the above technical solution are as follows: when the solid-state battery body 5 shakes left and right, the solid-state battery body 5 drives the clamping plate 18 to shake left and right, and the clamping plate 18 drives the guide tube 15 to shake left and right through the clamping column 17, and the guide tube 15 drives the slider 14 to slide left and right along the sliding rod 13. Under the action of the buffer spring 19, the sliding speed of the slider 14 can be slowed down, thereby reducing the degree of shaking of the solid-state battery body 5, avoiding damage to the solid-state battery body 5, and further extending the service life of the solid-state battery body 5.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A packaging structure of a solid-state battery, characterized in that: include: A packaging shell (1) is provided, wherein the upper end of the packaging shell (1) is covered with a cover plate (2), a plurality of ventilation holes (3) are provided on the side wall of the packaging shell (1), elastic blocks (4) are provided on the inner wall of the packaging shell (1), a solid-state battery body (5) is provided in the packaging shell (1), and the outer wall of the solid-state battery body (5) abuts against the outer wall of the elastic block (4).

2. A packaging structure of a solid-state battery according to claim 1, characterized in that: A cavity is arranged inside the elastic block (4).

3. A packaging structure of a solid-state battery according to claim 2, characterized in that: A plurality of vent holes (6) are arranged on the side wall of the elastic block (4); one end of the vent hole (6) is connected to the interior of the cavity, and the other end of the vent hole (6) is connected to the interior of the packaging shell (1).

4. The packaging structure of a solid-state battery according to claim 1, characterized in that: One end of the vent hole (3) is in communication with the outside of the packaging shell (1), and the other end of the vent hole (3) is in communication with the inside of the packaging shell (1).

5. The packaging structure of a solid-state battery according to claim 1, characterized in that: Two handles (7) are symmetrically arranged on the upper surface of the cover plate (2).

6. The packaging structure of a solid-state battery according to claim 1, characterized in that: A positive electrode terminal (8) and a negative electrode terminal (9) are respectively arranged at the upper end of the solid-state battery body (5), and a positive electrode terminal hole (10) and a negative electrode terminal hole (11) are respectively arranged on the cover plate (2), the positive electrode terminal (8) corresponds to the positive electrode terminal hole (10), and the negative electrode terminal (9) corresponds to the negative electrode terminal hole (11).

7. The packaging structure of a solid-state battery according to claim 1, characterized in that: The four corners of the cover plate (2) are penetrated with mounting holes, and connecting bolts are arranged in the mounting holes. The four corners of the upper end of the packaging shell (1) are provided with threaded holes, and the threaded holes correspond to the mounting holes one by one. The cover plate (2) is connected to the upper end of the packaging shell (1) through the connecting bolts.

8. The packaging structure of a solid-state battery according to claim 1, characterized in that: A clamping assembly is arranged on the lower surface of the cover plate (2), and the clamping assembly comprises two fixed blocks (12) symmetrically arranged on the lower surface of the cover plate (2), a sliding rod (13) is arranged between the two fixed blocks (12), a sliding block (14) is slidably arranged on the sliding rod (13), a guide tube (15) is arranged at the lower end of the sliding block (14), a clamping spring (16) is arranged in the guide tube (15), the upper end of the clamping spring (16) is connected to the lower surface of the sliding block (14), the lower end of the clamping spring (16) is connected to the upper end of a clamping column (17), the upper end of the clamping column (17) is slidably connected to the inner wall of the guide tube (15), a clamping plate (18) is arranged at the lower end of the clamping column (17), and the lower surface of the clamping plate (18) abuts against the upper surface of the solid-state battery body (5).

9. A packaging structure of a solid-state battery according to claim 8, characterized in that: The pressing plate (18) is made of elastic anti-skid material.

10. The packaging structure of a solid-state battery according to claim 8, characterized in that: Buffer springs (19) are symmetrically arranged at both ends of the slider (14). The buffer spring (19) is sleeved on the sliding rod (13). One end of the buffer spring (19) is connected to the side wall of the slider (14), and the other end of the buffer spring (19) is connected to the side wall of the fixed block (12).

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