A cover system for square aluminum shell solid-state batteries for energy storage

Abstract

The present invention relates to the field of battery technology, and specifically to a cover system for a square aluminum shell solid-state battery for energy storage, comprising a battery cover, wherein the battery cover is mounted on a battery box, and an outer surrounding sealing component is provided on the battery cover, and the connection between the battery cover and the battery box is sealed on the outside through the outer surrounding sealing component. The outer surrounding sealing component cooperates with the battery box and can also fix the battery cover on the battery box. A first fitting sleeve, a second fitting sleeve and a third fitting sleeve are provided on the battery cover, and the three fitting sleeves cooperate with the battery cover to seal the connection between the battery cover and the battery box from the outside of the battery cover, and a sealing ring gasket and an inner support ring are also provided on the lower side of the battery cover, and the two can seal the connection between the battery cover and the battery box from the inside of the battery box, thereby fully ensuring the sealing performance.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a cover system for a square aluminum shell solid-state battery for energy storage. Background Art

[0002] Square aluminum shell solid-state batteries are widely used in the field of new energy vehicles due to their excellent performance. The battery cover of the square aluminum shell solid-state battery plays a very important role. It requires the battery box to be well sealed to prevent moisture, dust and other impurities from entering, thereby ensuring the performance and life of the battery.

[0003] Existing battery covers are often fixed to the battery box by welding or screwing. Although the former can ensure good sealing, it is more troublesome to disassemble the battery during later recycling. Although the latter can make the battery cover detachable from the battery box, the screws may become loose during the use of the battery, and the sealing structure cannot be well restricted. In addition, its sealing structure is relatively simple, so the sealing of the battery cannot be guaranteed, and the battery cannot be used safely. In addition, the screws need to be operated one by one during installation and removal, which is not convenient enough. Summary of the Invention

[0004] The object of the present invention is to provide a cover system for a square aluminum shell solid-state battery for energy storage, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cover system for a square aluminum-shell solid-state battery for energy storage, comprising a battery cover, the battery cover being mounted on a battery box, and an outer surrounding sealing assembly being provided on the battery cover to seal the outer side of the connection between the battery cover and the battery box;

[0007] The outer surrounding sealing assembly cooperates with the battery box to fix the battery cover on the battery box;

[0008] The battery cover is also provided with an inner surrounding sealing assembly, which seals the connection between the battery cover and the battery box from the inner side of the battery box;

[0009] The inner surrounding sealing component is moved by the outer surrounding sealing component, and the outer surrounding sealing component locks the inner surrounding sealing component to ensure the firmness of the battery cover installation.

[0010] Preferably, a matching ring channel is provided on the periphery of the battery box, and an inner convex ring platform is fixedly provided inside the battery box.

[0011] Preferably, the outer surrounding sealing assembly includes a first fitting sleeve, a second fitting sleeve, a connecting movable block, a rotating support column and a third fitting sleeve, the first fitting sleeve is installed at one end of the battery cover, and a first fixed plug plate is fixedly provided on the inner side of the first fitting sleeve.

[0012] Preferably, the first fixing plug plate is inserted into the matching ring to fix the battery cover from one end.

[0013] Preferably, the second fitting sleeve is installed at the other end of the battery cover, and a second fixing plug is fixedly provided on the inner side of the second fitting sleeve. The second fixing plug is inserted into the matching ring to fix the battery cover from the other end.

[0014] Preferably, the first laminating sleeve plate and the second laminating sleeve plate are respectively installed with connecting movable blocks, and the first laminating sleeve plate and the second laminating sleeve plate are connected to the rotating support column through the connecting movable blocks.

[0015] Preferably, there are two third fitting sleeves, which are respectively installed on both sides of the battery cover, and the third fitting sleeve is movably connected to the second fitting sleeve.

[0016] Preferably, a third fixing plug-in plate is fixedly provided on the inner side of the third fitting sleeve, and the third fixing plug-in plate is inserted into the matching ring to fix the battery cover from the side.

[0017] Preferably, the inner surrounding sealing assembly includes a sealing ring gasket and an inner support ring, the inner support ring is installed on the inner side of the sealing ring gasket, and the inner support ring is connected to the rotating support column and is driven to move by the rotating support column.

[0018] Preferably, when the sealing ring gasket seals the connection between the battery cover and the battery box, the inner support ring squeezes the sealing ring gasket from the inner side thereof, so that the sealing ring gasket fits tightly at the connection between the battery cover and the battery box.

[0019] Preferably, the third fitting sleeve cooperates with the inner support ring to limit the inner support ring.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. A first fitting sleeve, a second fitting sleeve and a third fitting sleeve are provided on the battery cover. The cooperation of the three with the battery cover can seal the connection between the battery cover and the battery box from the outside of the battery cover. A sealing ring gasket and an inner support ring are also provided on the lower side of the battery cover. The two can seal the connection between the battery cover and the battery box from the inside of the battery box, thereby fully ensuring the sealing.

[0022] 2. When fixing the battery cover, push the first fitting sleeve or the second fitting sleeve toward the battery cover, which can drive the first fitting sleeve, the second fitting sleeve and the third fitting sleeve to move simultaneously, so that they wrap the battery cover and the battery box, and fit tightly at the connection between the battery cover and the battery box to achieve sealing of the connection. At the same time, the first fitting sleeve, the second fitting sleeve and the third fitting sleeve cooperate with the matching ring to fix the battery cover.

[0023] 3. In addition, the movement of the first laminating plate sleeve and the second laminating plate sleeve will drive the rotating support column to rotate, and then the inner support ring will be driven to move under the action of the rotating support column so that it can squeeze the inclined inner convex ring of the sealing ring gasket so that the sealing ring gasket can fit tightly at the connection between the battery cover and the battery box, further sealing it from the inside of the battery box. At the same time, the third laminating sleeve can also limit the inner support ring to ensure the firmness of the battery cover installation. The operation is simple, convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the assembly of the battery cover and battery box.

[0025] Figure 2 Schematic diagram of the coordination between the battery cover and the battery box.

[0026] Figure 3 This is a schematic diagram of the battery cover structure from the first perspective.

[0027] Figure 4 This is a schematic diagram of the battery cover structure from a second perspective.

[0028] Figure 5 Schematic diagram of the battery box structure.

[0029] Figure 6 The figure shows the assembly diagram of the battery cover.

[0030] Figure 7 It is a schematic diagram of the assembly of the first laminating sleeve, the second laminating sleeve and the third laminating sleeve.

[0031] Figure 8 It is a schematic diagram of the assembly of the sealing ring gasket and the inner support ring.

[0032] Figure 9 It is a structural diagram of the sealing ring gasket.

[0033] Figure 10 It is a structural diagram of the inner support ring.

[0034] Figure 11 This is the diagram of the inner support ring locked state.

[0035] In the figure: 1. Battery cover; 11. First connecting channel; 12. Second connecting channel; 13. First matching groove; 14. Second matching groove; 15. Assembly hole; 16. Protruding block; 17. Moving through hole; 18. Side plug hole; 19. Lower bearing ring plate; 10. Battery box; 101. Matching ring channel; 102. Inner convex ring platform; 2. First fitting sleeve; 21. First connecting rod; 22. First bearing block; 23. First supporting rod; 24. First fixed plug plate; 3. Second fitting sleeve; 31. Second connecting rod; 32. Second bearing block; 33. Second supporting rod; 34. Second fixed plug plate; 35. Connecting strip; 36. 6. Matching connecting strip; 4. Connecting movable block; 41. Movable through hole; 5. Rotating supporting column; 51. Bearing; 52. Threaded hole; 53. Connecting support plate; 6. Third fitting sleeve; 61. Connecting strip; 62. Supporting plug rod; 63. Sealing gasket; 64. Third fixed plug plate; 65. Limiting connecting plate; 66. Insertion channel; 7. Sealing ring gasket; 71. Inclined inner convex ring; 8. Inner support ring; 80. Inner support inclined surface; 81. Loading strip; 82. Threaded column; 83. Inserting movable rod; 84. Loading plate sleeve; 85. Support connecting hole; 86. Movable loading block; 87. Limiting matching rod; 88. Connecting spring; 89. Matching ring sleeve. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The present invention provides a technical solution:

[0038] like Figure 1 As shown, a cover system of a square aluminum shell solid-state battery for energy storage includes a battery cover 1, which is installed on a battery box 10. The battery cover 1 is provided with an outer surrounding sealing component, which is used to seal the outside of the connection between the battery cover 1 and the battery box 10. The outer surrounding sealing component cooperates with the battery box 10 and can also fix the battery cover 1 on the battery box 10. The battery cover 1 is also provided with an inner surrounding sealing component, which is used to seal the connection between the battery cover 1 and the battery box 10 from the inside of the battery box 10. The inner surrounding sealing component is moved by the outer surrounding sealing component, and the outer surrounding sealing component locks the inner surrounding sealing component to ensure the firmness of the installation of the battery cover 1.

[0039] like Figure 2 and Figure 5As shown, a matching ring channel 101 is provided on the periphery of the battery box 10 , and an inner convex ring platform 102 is fixedly provided inside the battery box 10 .

[0040] like Figure 3 and Figure 4 As shown, a first connecting channel 11 is symmetrically provided at one end of the battery cover 1, and a second connecting channel 12 is symmetrically provided at the other end, and a first matching groove 13 and a second matching groove 14 are symmetrically provided on the inner top surface of the battery cover 1. The first connecting channel 11 is connected to the first matching groove 13, and the second connecting channel 12 is connected to the second matching groove 14. In addition, assembly holes 15 are symmetrically provided on the inner top surface of the battery cover 1, and protruding blocks 16 are symmetrically fixed on the outer end surface of the battery cover 1. A movable through hole 17 is provided on the protruding block 16, and the movable through hole 17 passes through the battery cover 1. Side jacks 18 are symmetrically provided on both sides of the battery cover 1, and a lower supporting ring plate 19 is also fixed to the lower end of the battery cover 1.

[0041] The battery cover 1 is installed on the battery box 10, the lower ring plate 19 is inserted into the battery box 10, and the lower end surface of the lower ring plate 19 contacts the upper end surface of the inner convex ring platform 102, and the outer end surface of the lower ring plate 19 contacts the inner wall of the battery box 10.

[0042] like Figure 1 and Figure 7 As shown, the outer surrounding sealing assembly includes a first fitting sleeve 2, a second fitting sleeve 3, a connecting movable block 4, a rotating support column 5 and a third fitting sleeve 6. The first fitting sleeve 2 is installed at one end of the battery cover 1, and a first fixed plug plate 24 is fixedly provided on the inner side of the first fitting sleeve 2. The first fixed plug plate 24 is inserted into the matching ring channel 101 to fix it from one end of the battery cover 1. A first connecting rod 21 is symmetrically fixed on the first fitting sleeve 2. The first connecting rod 21 passes through the first connecting channel 11 and is inserted into the first matching groove 13. A first supporting block 22 is fixedly provided on the first connecting rod 21, and a first supporting rod 23 is fixedly provided on the first supporting block 22.

[0043] The second fitting sleeve 3 is installed at the other end of the battery cover 1, and a second fixed plug plate 34 is fixedly provided on the inner side of the second fitting sleeve 3. The second fixed plug plate 34 is inserted in the matching ring 101 to fix it from the other end of the battery cover 1. A second connecting support rod 31 is symmetrically fixed on the second fitting sleeve 3. The second connecting support rod 31 passes through the second connecting channel 12 and is inserted into the second matching groove 14. A second support block 32 is fixedly provided on the second connecting support rod 31, and a second supporting rod 33 is fixedly provided on the second support block 32. In addition, a connecting carrier bar 35 is symmetrically fixedly provided on the upper end of the second fitting sleeve 3, and a matching connecting bar 36 is hinged on the connecting carrier bar 35.

[0044] The first fitting sleeve 2 and the second fitting sleeve 3 are respectively equipped with a connecting movable block 4, and the first fitting sleeve 2 and the second fitting sleeve 3 are connected to the rotating support column 5 through the connecting movable block 4, and a movable through-hole 41 is provided on the connecting movable block 4. The connecting movable block 4 installed on the first fitting sleeve 2 is sleeved on the first supporting rod 23 through the movable through-hole 41, and the connecting movable block 4 installed on the second fitting sleeve 3 is sleeved on the second supporting rod 33 through the movable through-hole 41. The upper end of the rotating support column 5 is sleeved with a bearing 51, and the bearing 51 is installed in the assembly hole 15. A threaded hole 52 is provided on the rotating support column 5, and connecting support plates 53 are symmetrically fixed on the rotating support column 5. In addition, one of the two connecting support plates 53 on the rotating support column 5 is hinged to the connecting movable block 4 on the first fitting sleeve 2, and the other is hinged to the connecting movable block 4 on the second fitting sleeve 3.

[0045] There are two third fitting sleeves 6, which are respectively installed on both sides of the battery cover 1, and the third fitting sleeves 6 are movably connected to the second fitting sleeve 3. A third fixed plug-in plate 64 is fixed on the inner side of the third fitting sleeve 6, and the third fixed plug-in plate 64 is inserted in the matching ring 101 to fix it from the side of the battery cover 1. The third fitting sleeve 6 is symmetrically fixed with connecting strips 61, and the connecting strips 61 are hinged to the matching serial strips 36, and the inner side of the third fitting sleeve 6 is symmetrically fixed with supporting rods 62, which are inserted in the side sockets 18. In addition, sealing gaskets 63 are symmetrically pasted on both ends of the third fitting sleeve 6, and a limiting connecting plate 65 is fixed on the upper end of the third fitting sleeve 6, and a plug-in channel 66 is provided on the limiting connecting plate 65.

[0046] like Figure 6 and Figure 8 As shown, the inner surrounding sealing assembly includes a sealing ring gasket 7 and an inner support ring 8. The inner support ring 8 is installed on the inner side of the sealing ring gasket 7, and the inner support ring 8 is connected to the rotating support column 5. The inner support ring 8 is driven to move by the rotating support column 5. The sealing ring gasket 7 is fixed on the inner end surface of the lower ring plate 19, and partially protrudes from the lower side of the lower ring plate 19. A loading strip 81 is fixedly provided in the inner support ring 8, and a threaded column 82 is fixedly provided on the loading strip 81. The threaded column 82 is threadedly inserted into the threaded hole 52.

[0047] like Figure 1 、 Figure 9 、 Figure 10 and Figure 11As shown, when the sealing ring gasket 7 seals the connection between the battery cover 1 and the battery box 10, the inner support ring 8 squeezes the sealing ring gasket 7 from the inner side, and then the sealing ring gasket 7 is tightly fitted at the connection between the battery cover 1 and the battery box 10. The third fitting sleeve 6 cooperates with the inner support ring 8 to limit the inner support ring 8. The inner side of the sealing ring gasket 7 is fixedly provided with an inclined inner convex ring 71, and the lower end of the inner support ring 8 is provided with an inner support inclined surface 80. The loading strip 81 is also fixedly provided with a plug-in moving rod 83, which is plugged into the moving through hole 17, and the upper end of the plug-in moving rod 83 is inserted into the moving through hole 17. A bearing plate sleeve 84 is fixedly provided, and support connecting holes 85 are symmetrically opened at both ends of the bearing plate sleeve 84, and a movable carrier block 86 is symmetrically installed in the bearing plate sleeve 84, and a limiting matching rod 87 is fixedly provided on the movable carrier block 86, and the limiting matching rod 87 is inserted in the support connecting hole 85, and a connecting spring 88 is sleeved on the limiting matching rod 87, and the two ends of the connecting spring 88 are respectively fixed on the movable carrier block 86 and the inner wall of the bearing plate sleeve 84, and a matching ring sleeve 89 is fixedly provided at the lower end of the bearing plate sleeve 84, and the matching ring sleeve 89 is sleeved on the protruding block 16 when sealing the movable through hole 17.

[0048] The battery cover 1 is covered on the battery box 10. At this time, the sealing ring gasket 7 is in contact with the inner convex ring stage 102, covering the connection between the battery cover 1 and the battery box 10. When fixing the battery cover 1, the first fitting sleeve 2 is pushed toward the battery cover 1. As the first fitting sleeve 2 moves, it will drive the rotating support column 5 to rotate. As the rotating support column 5 rotates, it will drive the connecting movable block 4 to move, and then drive the second fitting sleeve 3 to move toward the battery cover 1. In addition, when fixing the battery cover 1, the second fitting sleeve 3 can also be pushed toward the battery cover 1. For the same reason, the first fitting sleeve 2 can be driven to move toward the battery cover 1 under the action of the rotating support column 5. As The movement of the first fitting sleeve 2 and the second fitting sleeve 3 will cover the connection between the battery cover 1 and the battery box 10 from the outside of the battery cover 1, sealing them from both ends. At the same time, the first fixed plug plate 24 and the second fixed plug plate 34 are inserted into the matching ring 101 to fix the battery cover 1 from both ends. As the second fitting sleeve 3 moves, the third fitting sleeve 6 will be driven to move toward the battery cover 1 under the action of the matching serial strip 36, so that the third fitting sleeve 6 covers the connection between the battery cover 1 and the battery box 10 from both sides of the battery cover 1. At this time, the sealing gasket 63 at one end of the third fitting sleeve 6 contacts the first fitting sleeve 2, and the sealing gasket 63 at the other end contacts the second fitting sleeve 3. At the same time, the third fitting sleeve 6 is in contact with the first fitting sleeve 2. The fixed insert 64 is inserted into the matching ring channel 101 to fix the battery cover 1 from both sides. In addition, when the rotating support column 5 is rotated, the threaded column 82 will be driven to move downward under the action of the thread. As the threaded column 82 moves downward, the inner support ring 8 will also move downward. As the inner support ring 8 moves downward, the inner support inclined surface 80 cooperates with the inner convex ring 71 of the inclined surface, so that the inner support ring 8 squeezes the sealing ring gasket 7 from the inner side of the sealing ring gasket 7, so that the sealing ring gasket 7 fits tightly on the lower supporting ring plate 19 and the inner convex ring platform 102, so that the connection between the battery cover 1 and the battery box 10 can be covered more tightly, and the battery box 10 can be sealed from the inside, further ensuring the sealing between the battery cover 1 and the battery box 10, ensuring The safe use of the battery, in addition, when the third fitting sleeve 6 moves, the limit connecting plate 65 will contact the limit matching rod 87, so that as the third fitting sleeve 6 moves, the limit matching rod 87 will be pushed under the action of the limit connecting plate 65, thereby making the connecting spring 88 in a stretched state, and as the bearing plate sleeve 84 moves downward, the limit matching rod 87 will eventually be aligned with the insertion channel 66 on the limit connecting plate 65. At this time, under the action of the connecting spring 88, the limit matching rod 87 will be driven to reset and move, thereby making the limit matching rod 87 inserted into the insertion channel 66, and partially protruding from the outside of the limit connecting plate 65, so that even if the limit matching rod 87 moves within a certain range, it will not be separated from the insertion channel 66.This can provide a stable fixation for the inner support ring 8, preventing the inner support ring 8 from moving up and down, thereby achieving the fixation of the first fitting sleeve 2, the second fitting sleeve 3, and the third fitting sleeve 6, ensuring the firmness and stability of the battery cover 1 installation. When the inner support ring 8 moves down to the working position, the matching ring sleeve 89 is now sleeved on the protruding block 16, so that the movable through hole 17 can be well sealed. When the battery cover 1 needs to be disassembled, it is only necessary to pull the movable carrier block 86 so that the limiting matching rod 87 exits the insertion channel 66 to unlock the inner support ring 8, thereby unlocking the first fitting sleeve 2, the second fitting sleeve 3, and the third fitting sleeve 6, and realizing the rapid disassembly of the battery cover 1.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cover system for a square aluminum shell solid-state battery for energy storage, comprising a battery cover, the battery cover being mounted on a battery box, characterized in that: The battery cover is provided with an outer surrounding sealing component, which is used to seal the outer side of the connection between the battery cover and the battery box; The outer surrounding sealing assembly cooperates with the battery box to fix the battery cover on the battery box; The battery box is provided with a matching ring channel on its periphery, and an inner convex ring platform is fixedly provided inside the battery box; A first connecting channel is symmetrically provided at one end of the battery cover, and a second connecting channel is symmetrically provided at the other end, and a first matching groove and a second matching groove are symmetrically provided on the inner top surface of the battery cover, the first connecting channel and the first matching groove are connected, and the second connecting channel and the second matching groove are connected, and assembly holes are symmetrically provided on the inner top surface of the battery cover, and protruding blocks are symmetrically fixed on the outer end surface of the battery cover, and movable through holes are provided on the protruding blocks, and the movable through holes pass through the battery cover, and side jacks are symmetrically provided on both sides of the battery cover, and a lower supporting ring plate is also fixedly provided at the lower end of the battery cover; The lower bearing ring plate is inserted into the battery box, and the lower end surface of the lower bearing ring plate contacts the upper end surface of the inner convex ring platform, and the outer end surface of the lower bearing ring plate contacts the inner wall of the battery box; The outer surrounding sealing assembly includes a first fitting sleeve, a second fitting sleeve, a connecting movable block, a rotating supporting column and a third fitting sleeve. The first fitting sleeve is installed at one end of the battery cover, and a first fixing plug-in plate is fixedly provided on the inner side of the first fitting sleeve. The first fixing plug-in plate is inserted into the matching ring channel to fix the battery cover from one end. A first connecting support rod is symmetrically fixed on the first fitting sleeve. The first connecting support rod passes through the first connecting channel and is inserted into the first matching groove. A first support block is fixed on the first connecting support rod, and a first supporting rod is fixed on the first support block. The second fitting sleeve is installed at the other end of the battery cover, and a second fixing plug-in plate is fixedly provided on the inner side of the second fitting sleeve. The second fixing plug-in plate is inserted into the matching ring channel and fixed to the battery cover from the other end. A second connecting rod is symmetrically fixed on the second fitting sleeve, and the second connecting rod passes through the second connecting channel and is inserted into the second matching groove. A second supporting block is fixedly provided on the second connecting rod, and a second supporting rod is fixedly provided on the second supporting block. A connecting carrier bar is symmetrically fixedly provided on the upper end of the second fitting sleeve, and a matching connecting bar is hinged on the connecting carrier bar; The first fitting sleeve and the second fitting sleeve are respectively provided with a connecting movable block, and the first fitting sleeve and the second fitting sleeve are connected to the rotating support column through the connecting movable block, a movable through hole is provided on the connecting movable block, the connecting movable block installed on the first fitting sleeve is sleeved on the first supporting rod through the movable through hole, and the connecting movable block installed on the second fitting sleeve is sleeved on the second supporting rod through the movable through hole, the upper end of the rotating support column is sleeved with a bearing, the bearing is installed in the assembly hole, a threaded hole is provided on the rotating support column, and a connecting support plate is symmetrically fixed on the rotating support column, one of the two connecting support plates on the rotating support column is hinged to the connecting movable block on the first fitting sleeve, and the other is hinged to the connecting movable block on the second fitting sleeve; There are two third fitting sleeves, which are respectively installed on both sides of the battery cover, and the third fitting sleeve is movably connected to the second fitting sleeve. A third fixing plug-in plate is fixed on the inner side of the third fitting sleeve, and the third fixing plug-in plate is inserted in the matching ring to fix the battery cover from the side. The third fitting sleeve is symmetrically fixed with connecting strips, and the connecting strips are hinged to the matching serial strips. The inner side of the third fitting sleeve is symmetrically fixed with supporting plug-ins, and the supporting plug-ins are inserted in the side plug-in holes. Sealing gaskets are symmetrically pasted on both ends of the third fitting sleeve, and a limited connecting plate is fixed on the upper end of the third fitting sleeve, and a plug-in channel is opened on the limited connecting plate; The battery cover is also provided with an inner surrounding sealing assembly, which seals the connection between the battery cover and the battery box from the inner side of the battery box; The inner surrounding sealing component is moved by the outer surrounding sealing component, and the outer surrounding sealing component locks the inner surrounding sealing component to ensure the firmness of the battery cover installation.

2. The cover system of a square aluminum shell solid-state battery for energy storage according to claim 1, characterized in that: The inner surrounding sealing assembly includes a sealing ring gasket and an inner support ring. The inner support ring is installed on the inner side of the sealing ring gasket, and the inner support ring is connected to the rotating support column and is driven to move by the rotating support column.

3. The cover system of a square aluminum shell solid-state battery for energy storage according to claim 2, characterized in that: When the sealing ring gasket seals the connection between the battery cover and the battery box, the inner support ring squeezes the sealing ring gasket from the inside, so that the sealing ring gasket fits tightly at the connection between the battery cover and the battery box.

4. The cover system of a square aluminum shell solid-state battery for energy storage according to claim 3, characterized in that: The third fitting sleeve cooperates with the inner support ring to limit the inner support ring.

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