Solid-state battery packaging structure

Abstract

The utility model provides a kind of solid-state battery packaging structure, including metal lower shell and metal upper shell, the top of the metal lower shell is open structure, and middle part is provided with battery core groove, the top of the metal lower shell is installed with multiple bending pieces in open place, the bottom of the metal upper shell is equipped with multiple sealing grooves, the bottom of the metal upper shell is installed with sealing gasket, the sealing groove is circumferentially arranged along sealing gasket, bending anastomosis piece is respectively set in the sealing groove, locking piece is installed in the side of bending anastomosis piece;The utility model is provided with sealing gasket between metal upper shell and metal lower shell, increase in metal lower shell, the sealing property of battery core groove, better protection internal battery core, by setting bending piece and bending anastomosis piece, it can be according to the bending angle of bending anastomosis piece, when packaging, the bending angle of bending piece is automatically pressed and closed, more matching anastomosis metal lower shell and metal upper shell, the sealing connection between the two is more fastened.

Description

Technical Field

[0001] This utility model belongs to the field of battery processing, specifically a solid-state battery packaging structure. Background Technology

[0002] Batteries are a common type of electrical energy storage device in daily life. Solid-state lithium batteries, as opposed to liquid lithium batteries, refer to energy storage devices whose structure contains no liquid, and all materials exist in solid form. Specifically, they consist of a positive electrode material, a negative electrode material, and an electrolyte.

[0003] In existing technologies, most batteries consist of an upper metal casing and a lower metal casing that are mated together. During encapsulation, pressure is often applied to the edges of either the upper or lower metal casing, causing deformation and creating a locking connection. This connection structure is easily damaged by thermal expansion and contraction or impacts, resulting in poor reliability.

[0004] In summary, this utility model provides a solid-state battery packaging structure to solve the above problems. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a solid-state battery packaging structure to solve the problems of poor reliability caused by thermal expansion and contraction or collisions in the prior art.

[0006] A solid-state battery packaging structure includes a metal lower shell and a metal upper shell. The top of the metal lower shell is open and a battery cell slot is provided in the middle. Multiple bending tabs are installed at the top opening of the metal lower shell. Multiple sealing grooves are formed at the bottom of the metal upper shell. A sealing gasket is installed at the bottom of the metal upper shell. The sealing grooves are arranged circumferentially along the sealing gaskets. Bending fitting tabs are respectively formed in the sealing grooves. A locking tab is installed on one side of the bending fitting tab. The side wall of the bending fitting tab away from the sealing groove has an inverted "J" shape structure.

[0007] Furthermore, the sealing grooves and the bent pieces are provided in a one-to-one correspondence.

[0008] Furthermore, the bent end of the bent fitting piece is installed at the top of the sealing groove, and the straight end of the bent fitting piece is arranged parallel to the side wall of the sealing groove.

[0009] Furthermore, the locking piece is installed on the straight end of the bent fitting piece, and the other end of the locking piece extends to the surface of the bent end and is disposed on the side of the bent fitting piece near the sealing gasket.

[0010] Furthermore, the bent piece is disposed on the surface of the opening of the lower metal shell, and the end of the bent piece away from the lower metal shell is a vertical end.

[0011] Furthermore, a lower cover groove is provided in the middle of the upper metal shell, the sealing groove is provided along the inner wall of the lower cover groove, and the sealing gasket is installed in the middle of the lower cover groove.

[0012] Furthermore, the sealing gasket is provided corresponding to the opening of the lower metal shell, and the sealing gasket covers the surface of the opening of the lower metal shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model increases the sealing of the battery cell slot inside the lower metal shell by setting a sealing gasket between the upper metal shell and the lower metal shell, thus better protecting the internal battery cell. By setting a bending piece and a bending matching piece, the bending angle of the bending piece can be automatically pressed together during packaging according to the bending angle of the bending matching piece, so as to better match the lower metal shell and the upper metal shell, and the sealing connection between the two is more secure.

[0015] 2. This utility model, by setting a bending piece, has a vertical structure in its natural state. During packaging, it automatically bends and folds according to the bending end of the bending fitting piece. The elastic support of the sealing gasket is used, and the locking piece is added to clamp the bending part of the bending piece. The packaging structure is simple and low cost. Attached Figure Description

[0016] Figure 1 This utility model is a three-dimensional Figure 1 ;

[0017] Figure 2 This utility model is a three-dimensional Figure 2 ;

[0018] Figure 3 This is a perspective view of the bent sheet of this utility model before packaging;

[0019] Figure 4 This is a three-dimensional view of the bent sheet of this utility model after encapsulation;

[0020] Figure 5 This is a three-dimensional view of the metal upper shell of this utility model.

[0021] In the picture:

[0022] 1. Metal lower shell; 2. Bending piece; 3. Metal upper shell; 4. Sealing groove; 5. Sealing gasket; 6. Battery cell slot; 7. Bending fitting piece; 8. Locking piece. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1-5 As shown, this utility model provides a solid-state battery packaging structure, including a lower metal shell 1 and a upper metal shell 3. The top of the lower metal shell 1 is an open structure, and a battery cell groove 6 is provided in the middle. Multiple bending pieces 2 are installed at the top opening of the lower metal shell 1. Multiple sealing grooves 4 are opened at the bottom of the upper metal shell 3. A sealing gasket 5 is installed at the bottom of the upper metal shell 3. The sealing grooves 4 are arranged circumferentially along the sealing gasket 5. Bending fitting pieces 7 are respectively opened in the sealing grooves 4. A locking piece 8 is installed on one side of the bending fitting piece 7. The side wall of the bending fitting piece 7 away from the sealing groove 4 has an inverted "J" shape structure.

[0025] In one embodiment of this utility model, the sealing groove 4 and the bending piece 2 are arranged in a one-to-one correspondence.

[0026] In one embodiment of this utility model, the bent end of the bent fitting piece 7 is installed on the top of the sealing groove 4, and the straight end of the bent fitting piece 7 is arranged parallel to the side wall of the sealing groove 4.

[0027] In one embodiment of this utility model, the locking piece 8 is installed on the straight end of the bent fitting piece 7, and the other end of the locking piece 8 extends to the surface of the bent end and is disposed on the side of the bent fitting piece 7 near the sealing gasket 5.

[0028] As one embodiment of this utility model, the bending piece 2 is disposed on the open surface of the metal lower shell 1, and the end of the bending piece 2 away from the metal lower shell 1 is a vertical end.

[0029] In one embodiment of this utility model, a lower cover groove is provided in the middle of the metal upper shell 3, a sealing groove 4 is provided along the inner wall of the lower cover groove, and a sealing gasket 5 is installed in the middle of the lower cover groove.

[0030] In one embodiment of this utility model, the sealing gasket 5 is provided corresponding to the opening of the metal lower shell 1, and the sealing gasket 5 covers the surface of the opening of the metal lower shell 1.

[0031] Specific working principle:

[0032] Before packaging, such as Figure 3 When the bending piece 2 is inserted into the bent end of the bending fitting piece 7 and continues to move downwards, the bending piece 2 is squeezed and bent according to the bending surface of the bent end, bending according to the arc of the bent end, such as... Figure 4 As shown, after the bending piece 2 is bent, it approaches the locking piece 8. The locking piece 8 is inserted into the concave end of the bending arc surface of the bending piece 2, thereby restricting the position of the upper metal shell 3 and completing the encapsulation of the upper metal shell 3 and the lower metal shell 1.

[0033] During the encapsulation process, the sealing gasket 5, located near the opening of the lower metal casing 1, gradually blocks the surface of the battery cell slot 6, covering the opening of the lower metal casing 1 and sealing the internal battery cell.

[0034] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A solid-state battery packaging structure, comprising a lower metal shell (1) and a upper metal shell (3), wherein the top of the lower metal shell (1) is an open structure and a battery cell slot (6) is provided in the middle, characterized in that, Multiple bent pieces (2) are installed at the top opening of the lower metal shell (1). Multiple sealing grooves (4) are opened at the bottom of the upper metal shell (3). A sealing gasket (5) is installed at the bottom of the upper metal shell (3). The sealing grooves (4) are arranged circumferentially along the sealing gaskets (5). Bending fitting pieces (7) are respectively opened in the sealing grooves (4). A locking piece (8) is installed on one side of the bending fitting piece (7). The side wall of the bending fitting piece (7) away from the sealing groove (4) has an inverted "J" shape structure.

2. The solid-state battery packaging structure as described in claim 1, characterized in that, The sealing groove (4) and the bending piece (2) are set in a one-to-one correspondence.

3. The solid-state battery packaging structure as described in claim 1, characterized in that, The bent end of the bent fitting piece (7) is installed on the top of the sealing groove (4), and the straight end of the bent fitting piece (7) is arranged parallel to the side wall of the sealing groove (4).

4. The solid-state battery packaging structure as described in claim 3, characterized in that, The locking piece (8) is installed on the straight end of the bent fitting piece (7), and the other end of the locking piece (8) extends to the surface of the bent end and is disposed on the side of the bent fitting piece (7) near the sealing gasket (5).

5. The solid-state battery packaging structure as described in claim 1, characterized in that, The bending piece (2) is disposed on the surface of the opening of the metal lower shell (1), and the end of the bending piece (2) away from the metal lower shell (1) is a vertical end.

6. The solid-state battery packaging structure as described in claim 1, characterized in that, The upper metal shell (3) has a lower shell cover groove in the middle, the sealing groove (4) is provided along the inner wall of the lower shell cover groove, and the sealing gasket (5) is installed in the middle of the lower shell cover groove.

7. The solid-state battery packaging structure as described in claim 1, characterized in that, The sealing gasket (5) is provided corresponding to the opening of the metal lower shell (1), and the sealing gasket (5) covers the surface of the opening of the metal lower shell (1).

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