Solid sodium battery packaging structure

Abstract

The utility model relates to the field of battery packaging, and discloses a solid sodium battery packaging structure which comprises an insulating shell, a welding wire is arranged on the outer wall of the insulating shell, insulating covers are embedded in openings in the top and the bottom of the insulating shell, connecting pieces are arranged on the outer walls of the two insulating covers in a sleeved mode, and the connecting pieces are connected with the welding wire. A plurality of springs are arranged on the sides, close to each other, of the two connecting pieces in an annular array mode, the ends, close to each other, of the multiple upper and lower springs are fixedly connected with abutting pieces, a filling pipe is embedded in the insulating shell, and a plurality of buffer rings are vertically arranged on the inner wall of the filling pipe in an array mode; according to the utility model, the use is simple, the battery core is wrapped in the insulating shell and the filling pipe for protection, and the buffer ring is matched with the spring and the propping sheet to form a buffer structure, so that the damage to the battery core caused by bumping can be effectively reduced; and the filling tube can be filled in the insulating shell and the battery core to eliminate gaps and reduce shaking.

Description

Technical Field

[0001] This utility model relates to the field of battery packaging, specifically a solid sodium battery packaging structure. Background Technology

[0002] Utility model patent CN210015926U discloses a packaging structure for a solid-state lithium battery, including a top cover, a solid electrolyte, and a battery body. The solid electrolyte is centrally located within the battery body, with a positive electrode wound around its outer edge. A separator is wound around the outer edge of the positive electrode, and a negative electrode is wound around the outer edge of the separator. An outer film layer is wound around the outer edge of the negative electrode. This solid-state lithium battery packaging structure is simple and reasonable, with clear and distinct material arrangements for each layer, facilitating packaging. The battery body comprises, from the inside out, a solid electrolyte, positive electrode, separator, negative electrode, outer film layer, explosion-proof glass, sealing layer, and outer shell layer, totaling 80% structure. The solid electrolyte, positive electrode, separator, and negative electrode form the battery cell structure, while the outer film layer, explosion-proof glass, sealing layer, and outer shell layer serve as the external packaging and protective structure, ensuring a robust external structure and stable internal operation of the battery body.

[0003] The aforementioned utility model patent lacks a structure to protect the battery cell inside the battery. The battery is prone to deformation after being subjected to bumps and impacts, which affects its internal structural state and thus the power supply state of the battery. Therefore, those skilled in the art have provided a solid sodium battery packaging structure to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a solid-state sodium battery packaging 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 solid sodium battery encapsulation structure, comprising an insulating shell, characterized in that: a welding line is provided on the outer wall of the insulating shell; an insulating cover is embedded in the top and bottom openings of the insulating shell; a connecting piece is sleeved on the outer wall of each of the two insulating covers; multiple springs are arranged in a circular array on the side of each of the two connecting pieces that are close to each other; a stop piece is fixedly connected to one end of each of the upper and lower multiple springs that are close to each other; a filling tube is embedded inside the insulating shell; multiple buffer rings are arranged in a vertical array on the inner wall of the filling tube; two limiting rings are symmetrically fixedly connected to the outer wall of the insulating shell; an anti-slip sleeve is sleeved on the outer wall of the insulating shell; the top of the anti-slip sleeve is in contact with the bottom of the upper limiting ring, and the bottom of the anti-slip sleeve is in contact with the top of the lower limiting ring.

[0006] As a further improvement of this utility model: gaskets are fixedly connected to the two insulating covers on opposite sides, and the diameter of the insulating cover is smaller than the diameter of the insulating shell.

[0007] As a further improvement of this utility model: through holes are provided at both ends of the insulating shell and on the insulating cover, and the through holes on the insulating cover are connected to the gasket.

[0008] As a further improvement of this utility model, the abutment is also provided with through holes, and multiple through holes are located at the same center point.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The battery cell is installed by fitting a filling tube onto the battery cell and enclosing it inside an insulating shell. Two welding lines on the insulating shell can be welded together to achieve a sealed assembly of the insulating shell. An anti-slip sleeve can be fitted onto the outer wall of the insulating shell for anti-slip purposes, and two limiting rings can clamp the anti-slip sleeve in the middle for limiting. Insulating caps can be fitted into the two openings of the insulating shell for sealing.

[0011] This invention is simple to use. It protects the battery cell by wrapping it in an insulating shell and a filling tube. The buffer structure formed by the buffer ring, spring and abutment can effectively reduce the damage to the battery cell caused by bumps. The filling tube can fill the insulating shell and the battery cell to eliminate gaps and reduce shaking. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0013] Figure 2 This is a three-dimensional exploded view of the present invention;

[0014] Figure 3 This is a three-dimensional schematic diagram of the filling tube in this utility model;

[0015] Figure 4 This is a three-dimensional schematic diagram of the insulating shell in this utility model;

[0016] Figure 5 This is a three-dimensional schematic diagram of the insulating cover in this utility model.

[0017] In the diagram: 1. Insulating shell; 2. Welding line; 3. Limiting ring; 4. Anti-slip sleeve; 5. Gasket; 6. Through hole; 7. Insulating cover; 8. Abutment; 9. Filler tube; 10. Buffer ring; 11. Spring; 12. Connecting piece. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 In this embodiment of the present invention, a solid sodium battery encapsulation structure includes an insulating shell 1. Welding lines 2 are provided on the outer wall of the insulating shell 1. Insulating covers 7 are embedded in the top and bottom openings of the insulating shell 1. Connecting pieces 12 are fitted onto the outer walls of the two insulating covers 7. Multiple springs 11 are arranged in a circular array on the side of the two connecting pieces 12 that are close to each other. Abutment pieces 8 are fixedly connected to the upper and lower ends of the multiple springs 11 that are close to each other. Anti-slip sleeves 4 can be fitted onto the outer wall of the insulating shell 1 for anti-slip purposes. Two limiting rings 3 can clamp the anti-slip sleeves 4 in the middle for limiting their position. Insulating covers 7 can be fitted into the two openings of the insulating shell 1 for sealing. Connecting pieces 12 are provided on the outer wall of the insulating covers 7 for installing the springs 11. The springs 11, through their elastic force, drive the abutment pieces 8 to press against both ends of the battery core for fixation. This provides a buffering effect on the battery core during bumps. The battery core is fitted with a filling tube 9 and wrapped inside the insulating shell 1 for installation. The two welding lines 2 on the insulating shell 1 can be welded together to achieve a sealed assembly of the insulating shell 1.

[0020] In this embodiment, a filling tube 9 is embedded inside the insulating shell 1, and multiple buffer rings 10 are arranged vertically on the inner wall of the filling tube 9.

[0021] In this embodiment, two limiting rings 3 are symmetrically fixedly connected to the outer wall of the insulating shell 1, and an anti-slip sleeve 4 is fitted on the outer wall of the insulating shell 1.

[0022] In this embodiment, the top of the anti-slip sleeve 4 is in contact with the bottom of the upper limiting ring 3, and the bottom of the anti-slip sleeve 4 is in contact with the top of the lower limiting ring 3.

[0023] In this embodiment, a gasket 5 is fixedly connected to each of the two insulating covers 7 on the side that is far apart from each other, and the diameter of the insulating cover 7 is smaller than the diameter of the insulating shell 1.

[0024] In this embodiment, through holes 6 are provided at both ends of the insulating shell 1 and on the insulating cover 7, and the through holes 6 on the insulating cover 7 pass through the connecting piece 12 and the gasket 5.

[0025] In this embodiment, the abutment 8 is also provided with through holes 6, and multiple through holes 6 are located at the same center point. The through holes 6 on multiple insulating shells 1, connecting pieces 12, gaskets 5, and insulating covers 7 can be used to install the battery cell through the positive and negative terminals.

[0026] The working principle of this utility model is as follows: The battery cell is fitted with a filling tube 9 and wrapped inside an insulating shell 1 for installation. Two welding lines 2 on the insulating shell 1 can be welded to achieve a sealed assembly of the insulating shell 1. An anti-slip sleeve 4 can be fitted on the outer wall of the insulating shell 1 for anti-slip. Two limiting rings 3 can clamp the anti-slip sleeve 4 in the middle for limiting. An insulating cover 7 can be fitted into the two openings of the insulating shell 1 for sealing. A connecting piece 12 is provided on the outer wall of the insulating cover 7 for installing a spring 11. The spring 11 drives the abutment 8 to push against both ends of the battery cell for fixation through its elastic force. This can buffer the battery cell when bumps occur, thereby preventing damage to the battery cell. The filling tube 9 between the battery cell and the insulating shell 1 plays a filling role, which can eliminate gaps and prevent the battery from shaking. Multiple buffer rings 10 are provided on the inner wall of the filling tube 9 to buffer and reduce damage caused by bumps. Multiple through holes 6 on the insulating shell 1, connecting piece 12, gasket 5, and insulating cover 7 can be used to pass through the positive and negative terminals of the battery cell for installation.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solid-state sodium battery packaging structure, comprising an insulating shell (1), characterized in that: Welding lines (2) are provided on the outer wall of the insulating shell (1). Insulating covers (7) are embedded in the top and bottom openings of the insulating shell (1). Connecting pieces (12) are fitted on the outer walls of the two insulating covers (7). Multiple springs (11) are arranged in a circular array on the side of the two connecting pieces (12) that are close to each other. Abutment pieces (8) are fixedly connected to the upper and lower ends of the multiple springs (11) that are close to each other. A filling tube (9) is embedded in the insulating shell (1). Multiple buffer rings (10) are arranged in a vertical array on the inner wall of the filling tube (9). Two limiting rings (3) are symmetrically fixed on the outer wall of the insulating shell (1). An anti-slip sleeve (4) is fitted on the outer wall of the insulating shell (1). The top of the anti-slip sleeve (4) is in contact with the bottom of the upper limiting ring (3). The bottom of the anti-slip sleeve (4) is in contact with the top of the lower limiting ring (3).

2. The solid-state sodium battery packaging structure according to claim 1, characterized in that: Gaskets (5) are fixedly connected to the two insulating covers (7) on opposite sides. The diameter of the insulating cover (7) is smaller than the diameter of the insulating shell (1).

3. The solid-state sodium battery packaging structure according to claim 1, characterized in that: Through holes (6) are provided at both ends of the insulating shell (1) and on the insulating cover (7), and the through holes (6) on the insulating cover (7) pass through the connecting piece (12) and the gasket (5).

4. The solid-state sodium battery packaging structure according to claim 3, characterized in that: The abutment (8) also has through holes (6), and multiple through holes (6) are located at the same center point.

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