A square aluminum-shell solid-state battery for energy storage with efficient thermal management

Abstract

The present invention relates to the field of battery technology, and specifically to a square aluminum shell solid-state battery for energy storage with efficient thermal management, comprising a battery body, wherein heat dissipation channels are symmetrically arranged on the battery body, and the heat dissipation channels are used to dissipate heat from the battery body when the battery body is in an abnormally heated state. A channel sealing component is installed in the heat dissipation channel, and the heat dissipation channel is sealed when the channel sealing component is fully inserted into the heat dissipation channel. A heat dissipation channel is provided on the battery body, and a channel sealing sleeve is installed in the heat dissipation channel. When the battery body is in a normal heat dissipation state, the heat dissipation channel is in a closed state under the action of the channel sealing sleeve, thereby ensuring the overall sealing of the battery body. When the battery body is in an abnormally heated state, the channel sealing sleeve will no longer seal the heat dissipation channel, at which point the interior of the battery body can be connected to the outside, further improving the heat dissipation efficiency inside the battery body.

Description

Technical Field

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

[0002] The square aluminum shell solid-state battery is a solid-state battery that uses a square aluminum shell as its outer shell. Solid electrolytes are used inside to replace the liquid electrolytes in traditional lithium batteries. Combined with the mechanical strength and corrosion resistance of the aluminum shell, a high-safety, high-energy-density battery form is formed. This battery performs well in energy density, cycle life and safety, and is widely used in various fields, including the field of new energy vehicles.

[0003] The existing square aluminum shell solid-state battery has a relatively simple structure. Since the battery cell is sealed inside the aluminum shell, it relies solely on the heat exchange between the shell and the outside world, and the heat dissipation efficiency is low. Under normal circumstances, it can meet the battery heat dissipation needs. However, once abnormal temperature rise occurs, it cannot meet the battery heat dissipation needs by relying solely on the heat dissipation of the sealed aluminum shell. In severe cases, it is very likely to cause damage to the battery. Summary of the Invention

[0004] The purpose of the present invention is to provide a square aluminum shell solid-state battery for energy storage with efficient thermal management 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 square aluminum-shell solid-state battery for energy storage with efficient thermal management, comprising a battery body with symmetrically arranged heat dissipation channels for dissipating heat from the battery body when the battery body is in an abnormally heated state;

[0007] A channel sealing component is installed in the heat dissipation channel. When the channel sealing component is fully inserted into the heat dissipation channel, the heat dissipation channel is sealed. When the channel sealing component partially protrudes from the upper side of the heat dissipation channel, communication between the interior of the battery body and the outside is achieved.

[0008] The battery body is provided with a gas driving component, which drives the channel sealing component to move up and down;

[0009] The battery body is also provided with a movable dustproof mechanism, which cooperates with the channel sealing component to prevent dust therefrom, and the movable dustproof mechanism is driven to move downward by the channel sealing component.

[0010] Preferably, the channel sealing component is a channel sealing sleeve, and the outer wall of the channel sealing sleeve is tightly fitted with the inner wall of the heat dissipation channel.

[0011] Preferably, a ventilation channel is provided on the channel sealing sleeve, and communication between the interior of the battery body and the outside is achieved through the ventilation channel.

[0012] Preferably, the gas drive assembly includes a gas carrier bar and a gas sealing plate, and the gas carrier bar is fixedly arranged on the battery body.

[0013] Preferably, a gas carrier cavity is provided on the gas carrier strip, and the gas sealing plate is inserted into the gas carrier cavity.

[0014] Preferably, the gas sealing plate is connected to the channel sealing sleeve, driving the channel sealing sleeve to move up and down.

[0015] Preferably, the movable dustproof mechanism includes a connecting linkage bar, a dustproof mesh plate and a driving lightweight bar. The connecting linkage bar is movably installed on the battery body, and the channel closing sleeve drives the connecting linkage bar to move when it moves upward.

[0016] Preferably, the connecting linkage bar is movably connected to a driving lightweight bar, and a load-bearing connecting rod is movably installed on the driving lightweight bar.

[0017] Preferably, rod end bearing blocks are fixedly provided at both ends of the bearing connecting rod, and a matching driving insert is fixedly provided on the rod end bearing blocks.

[0018] Preferably, the driving light bar drives the dustproof screen to move up and down by cooperating with the driving plate to connect with the dustproof screen.

[0019] Preferably, when the dust screen moves downward, the connecting linkage bar can limit the bearing connecting rod.

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

[0021] 1. A heat dissipation channel is provided on the battery body, and a channel sealing sleeve is installed in the heat dissipation channel. When the battery body is in a normal heat dissipation state, the heat dissipation channel is in a closed state under the action of the channel sealing sleeve, ensuring the overall sealing of the battery body. When the battery body is in an abnormally heated state, the channel sealing sleeve will no longer seal the heat dissipation channel. At this time, the interior of the battery body can be connected with the outside world, further improving the heat dissipation efficiency inside the battery body and ensuring the safe use of the battery body.

[0022] 2. When the battery body is in an abnormally heated state, the gas inside the gas carrier strip expands due to thermal expansion and contraction. As the gas expands, it pushes the gas sealing plate to move. As the gas sealing plate moves, the channel sealing sleeve is pushed upward under the action of the upward connecting rod, thereby exposing the air permeable channel on the channel sealing sleeve, thereby realizing the connection between the inside of the battery body and the outside world, facilitating more effective heat dissipation of the battery body.

[0023] 3. In addition, as the channel closing sleeve moves upward, it will drive the connecting linkage bar to move. As the connecting linkage bar moves, the dustproof mesh plate will be driven downward under the action of the pull-down connecting rod, so that the dustproof mesh plate covers the air channel, which can effectively prevent external dust from entering the interior of the battery body, and as the connecting linkage bar moves, it will limit the load-bearing connecting rod so that it cannot move, thereby ensuring that the dustproof mesh plate can stably cover the air channel and play a good dust-proof role. When the heat dissipation channel is in a closed state, the dustproof mesh plate is between the two dust guard plates, so that dust can be prevented from accumulating on the dustproof mesh plate under the action of the dust guard plates. The dustproof mesh plate is easy to install and disassemble, and is convenient for regular disassembly and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 Schematic diagram of the battery structure.

[0026] Figure 3 This is a first-person perspective diagram of the assembly of the gas sealing plate and the channel sealing sleeve.

[0027] Figure 4 A second perspective schematic diagram of the assembly of the gas sealing plate and the channel sealing sleeve.

[0028] Figure 5 It is a schematic diagram of the assembly of the channel closing sleeve and the connecting linkage strip.

[0029] Figure 6 This is a first-person perspective structural diagram of the loading slats.

[0030] Figure 7 This is a schematic diagram of the second perspective structure of the loading slats.

[0031] Figure 8 This is an assembly diagram for connecting the linkage strip, dustproof screen and driving lightweight strip.

[0032] Figure 9 This is a structural diagram of the dustproof screen.

[0033] Figure 10Schematic diagram of the structure of the driving lightweight strip.

[0034] In the figure: 1. Battery body; 11. Heat dissipation channel; 12. Moving groove; 13. Loading strip; 14. Moving channel; 15. Loading top plate; 16. Insertion cavity; 17. Dust shield; 171. Downward movement channel; 18. Protruding load block; 181. Limiting bearing rod; 182. Limiting top block; 19. Gas carrier strip; 191. Gas carrier cavity; 2. Gas sealing plate; 21. Moving load rod; 22. Connecting drooping plate; 23. Push-up connecting rod; 3. Channel closing sleeve; 31. Breathing channel; 32. Upper convex top strip; 33. Support Carrying bar; 34, inclined driving frame; 4, connecting linkage bar; 41, installing bearing rod; 42, connecting spring; 43, contact matching block; 44, bearing protruding bar; 45, limiting contact bar; 46, pull-down connecting rod; 5, dustproof mesh plate; 51, supporting protruding bar; 52, matching protruding block; 53, connecting channel; 6, driving lightweight bar; 61, limiting matching channel; 62, bearing protruding bar; 63, bearing channel; 64, bearing connecting rod; 65, operating carrier; 66, elastic connecting bar; 67, rod end bearing block; 68, matching driving plug-in board. DETAILED DESCRIPTION

[0035] 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.

[0036] The present invention provides a technical solution:

[0037] like Figure 1 As shown, a square aluminum shell solid-state battery for energy storage with efficient thermal management includes a battery body 1. The battery body 1 is symmetrically provided with heat dissipation channels 11. The heat dissipation channels 11 are used to dissipate heat for the battery body 1 when the battery body 1 is in an abnormally heated state. A channel sealing component is installed in the heat dissipation channel 11. When the channel sealing component is fully inserted into the heat dissipation channel 11, the heat dissipation channel 11 is sealed. When the channel sealing component partially protrudes from the upper side of the heat dissipation channel 11, the inside of the battery body 1 is connected with the outside world. A gas driving component is provided on the battery body 1, and the channel sealing component is driven by the gas driving component to move up and down. A movable dustproof mechanism is also installed on the battery body 1. The movable dustproof mechanism cooperates with the channel sealing component to play a dust-proof role, and the movable dustproof mechanism is driven to move downward by the channel sealing component.

[0038] like Figure 2 、 Figure 6 and Figure 7 As shown, movable grooves 12 are symmetrically provided on the battery body 1 at both ends of the heat dissipation channel 11, and a loading strip 13 is fixedly provided on the battery body 1 next to the heat dissipation channel 11, and a movable channel 14 is symmetrically provided on the loading strip 13, and a loading top plate 15 is fixedly provided on the upper end of the loading strip 13, and a plug-in cavity 16 is symmetrically provided on the loading top plate 15, and two dust guards 17 are fixedly provided on the loading top plate 15, and a downward movement channel 171 is provided on the loading top plate 15 between the dust guards 17, and protruding load blocks 18 are also symmetrically fixedly provided at both ends of the loading top plate 15, and a limiting support rod 181 is fixedly provided on the protruding load block 18, and a limiting top block 182 is fixedly provided on the upper end of the limiting support rod 181.

[0039] like Figure 1 and Figure 3 As shown, the channel sealing component is a channel sealing sleeve 3, the outer wall of the channel sealing sleeve 3 is tightly fitted with the inner wall of the heat dissipation channel 11, and a ventilation channel 31 is opened on the channel sealing sleeve 3, through which the inside of the battery body 1 is connected with the outside world. An upper convex top bar 32 is fixedly provided on the channel sealing sleeve 3, and support strips 33 are symmetrically fixed at both ends of the upper convex top bar 32. An inclined driving frame 34 is fixedly provided on the support strip 33, and the surface of the inclined driving frame 34 is smooth and free of burrs.

[0040] like Figure 1 、 Figure 2 and Figure 3 As shown, the gas drive assembly includes a gas carrier strip 19 and a gas sealing plate 2 , and the gas carrier strip 19 is fixedly arranged on the battery body 1 .

[0041] like Figure 1 、 Figure 2 ,and Figure 4 The gas carrier strip 19 shown is provided with a gas carrier cavity 191, and the gas carrier cavity 191 is aligned with the movable channel 14 on the loading strip 13, and the inner wall of the gas carrier cavity 191 is smooth and free of burrs, and the gas sealing plate 2 is inserted in the gas carrier cavity 191, and the gas sealing plate 2 is in close contact with the inner wall of the gas carrier cavity 191. The gas sealing plate 2 is connected to the channel sealing sleeve 3, driving the channel sealing sleeve 3 to move up and down. In addition, a movable bearing rod 21 is fixedly provided on the gas sealing plate 2, and the movable bearing rod 21 is inserted in the movable channel 14, and a connecting pendant plate 22 is fixedly provided on the end of the movable bearing rod 21 away from the gas sealing plate 2, and the connecting pendant plate 22 is partially inserted in the movable groove 12, and an upward push connecting rod 23 is hinged on the connecting pendant plate 22, and the upper end of the upward push connecting rod 23 is hinged to the upper convex top strip 32 on the channel sealing sleeve 3.

[0042] like Figure 1 and Figure 5As shown, the movable dustproof mechanism includes a connecting linkage bar 4, a dustproof mesh plate 5 and a driving lightweight bar 6. The connecting linkage bar 4 is movably installed on the battery body 1. When the channel closing sleeve 3 moves upward, it drives the connecting linkage bar 4 to move. One end of the connecting linkage bar 4 is fixedly provided with a mounting load-bearing rod 41, and a connecting spring 42 is sleeved on the mounting load-bearing rod 41. The mounting load-bearing rod 41 is inserted into the plug-in cavity 16 on the loading top plate 15, and the two ends of the connecting spring 42 are respectively fixed on the connecting linkage bar 4 and the loading top plate 15. A contact matching block 43 is fixedly provided on the connecting linkage bar 4 next to the mounting load-bearing rod 41. The surface of the contact matching block 43 is smooth and free of burrs, and the contact matching block 43 is in contact with the inclined driving frame 34. The other end of the connecting linkage bar 4 is fixedly provided with a bearing protrusion bar 44, and a limiting contact bar 45 is fixed on the bearing protrusion bar 44.

[0043] like Figure 8 As shown, the connecting linkage bar 4 is movably connected to the driving lightweight bar 6, and a load-bearing connecting rod 64 is movably installed on the driving lightweight bar 6. A pull-down connecting rod 46 is hinged at one end of the connecting linkage bar 4 close to the load-bearing protruding bar 44, and the upper end of the pull-down connecting rod 46 is hinged to the driving lightweight bar 6.

[0044] like Figure 1 and Figure 10 As shown, the two ends of the bearing connecting rod 64 are respectively fixed with rod end bearing blocks 67, and the rod end bearing blocks 67 are fixed with a matching driving plug plate 68, and the surface of the matching driving plug plate 68 is smooth and burr-free. The two ends of the driving lightweight strip 6 are symmetrically provided with limited matching channels 61, and the limited matching channels 61 are inserted into the limited matching channels 61. The limiting top block 182 plays a role in limiting the driving lightweight strip 6, and the driving lightweight strip 6 is also fixed with a bearing ridge 62, and the bearing ridge 62 is provided with a bearing channel 63, and the bearing connecting rod 64 is inserted in the bearing channel 63. The bearing connecting rod 64 is symmetrically fixed with an operating carrier 65, and an elastic connecting strip 66 is fixed on the operating carrier 65. The other end of the elastic connecting strip 66 is fixed on the bearing ridge 62.

[0045] like Figure 1 、 Figure 8 and Figure 9As shown, the driving lightweight strip 6 is connected to the dustproof screen plate 5 by cooperating with the driving plug plate 68 to drive the dustproof screen plate 5 to move up and down. When the dustproof screen plate 5 moves downward, the connecting linkage bar 4 can limit the bearing connecting rod 64, and the dustproof screen plate 5 is inserted between the two dust guard plates 17, and the lower end of the dustproof screen plate 5 is inserted in the downward movement channel 171. The upper end of the dustproof screen plate 5 is symmetrically fixed with a supporting ridge 51, and a matching ridge 52 is fixed on the supporting ridge 51. The matching ridge 52 is provided with a connecting channel 53. The inner wall of the connecting channel 53 is smooth and burr-free, and a matching driving plug plate 68 is inserted in the connecting channel 53. The matching driving plug plate 68 contacts the inner wall of the connecting channel 53. In addition, when the connecting linkage bar 4 limits the bearing connecting rod 64, the limiting contact strip 45 on the connecting linkage bar 4 contacts the rod end bearing block 67, so that the bearing connecting rod 64 can be restricted so that it cannot move.

[0046] When the battery body 1 is in a normal working state, the channel sealing sleeve 3 is fully inserted into the heat dissipation channel 11. At this time, the air permeable channel 31 on the channel sealing sleeve 3 is in the heat dissipation channel 11. In this way, under the close cooperation between the channel sealing sleeve 3 and the heat dissipation channel 11, the heat dissipation channel 11 is in a closed state, ensuring the overall sealing of the battery body 1. When the battery body 1 is in an abnormally heated state, the temperature of the battery body 1 is too high. The high temperature acts on the gas in the gas carrier cavity 191, causing the gas to expand thermally. As the gas expands, it will push the gas sealing plate 2 to move. As the gas sealing plate 2 moves, it will drive the movable bearing rod 21 to move. In this way, as the movable bearing rod 21 moves, it pushes the connecting rod 23 upward. Under the action of the air-conditioning system 31, the channel-sealing sleeve 3 will be pushed to move upward. As the channel-sealing sleeve 3 moves upward, the air-permeable channel 31 on the channel-sealing sleeve 3 will move out of the heat dissipation channel 11. In this way, under the action of the air-permeable channel 31, the interior of the battery body 1 will be connected with the outside world, and the interior of the battery body 1 can be quickly dissipated through the air-permeable channel 31, thereby further improving the heat dissipation efficiency of the battery body 1 and ensuring the safe use of the battery body 1. In addition, when the channel-sealing sleeve 3 moves upward, it will also drive the inclined driving frame 34 to move synchronously. As the inclined driving frame 34 moves upward, the inclined driving frame 34 will push the contact matching block 43 to move away from the loading top plate 15, thereby driving the connecting linkage bar 4 to move away from the loading top plate 15. The cam 6 is moved in the direction of rotation, and as the connecting link 4 moves, the light-weight bar 6 is driven to move downward under the action of the pull-down connecting rod 46. Since the matching driving plug 68 on the light-weight bar 6 is plugged into the connecting channel 53 on the dust-proof mesh plate 5, the dust-proof mesh plate 5 is also driven to move downward as the light-weight bar 6 is driven. As the dust-proof mesh plate 5 moves downward, the dust-proof mesh plate 5 is partially moved out from between the two dust-blocking guard plates 17, and at the same time, the dust-proof mesh plate 5 covers the air permeable channel 31 on the channel closing sleeve 3, so that the dust from the outside can be prevented from entering the interior of the battery body 1 through the air permeable channel 31, which can play an effective dust-proof role and can perform good heat dissipation. As the connecting link 4 moves away from the loading top plate 15, When the lever 64 is in the closed position, the locking plate 68 is engaged with the locking plate 69, and the locking plate 69 is engaged with the locking plate 68. When the lever 64 is in the closed position, the locking plate 68 is engaged with the locking plate 69, and the locking plate 69 is engaged with the locking plate 68.In this way, under the action of the two dust shield plates 17, the dustproof mesh plate 5 can play a good dust-proof role, avoiding dust accumulation on the dustproof mesh plate 5 when the dustproof mesh plate 5 is not in working state. When the temperature of the battery body 1 returns to normal, the temperature drops and the gas shrinks, which will cause the gas sealing plate 2 to move in the opposite direction, and at the same time, the channel sealing sleeve 3 will move downward to reset and be fully inserted into the heat dissipation channel 11 again to achieve the closure of the heat dissipation channel 11. As the channel sealing sleeve 3 moves downward, the contact matching block 43 will lose the restriction of the inclined drive frame 34. In this way, under the action of the connecting spring 42, the connecting linkage bar 4 will be driven to move in the opposite direction and reset, and then the lightweight bar 6 can be driven to move upward under the action of the pull-down connecting rod 46, thereby driving the dustproof mesh plate 5 to be inserted between the two dust shield plates 17 again to achieve reset. , which can provide good protection for the dustproof mesh plate 5 and is very convenient. The battery body 1 can realize the automatic opening of the heat dissipation channel 11 according to its own heat dissipation needs, thereby improving the heat dissipation efficiency. The structure is simple, the cost is low, and it is very practical. In addition, when it is necessary to clean the dust on the surface of the dustproof mesh plate 5, one of the operating carrier plates 65 is pushed in the direction of the bearing ridges 62 to drive the bearing connecting rods 64 to move, and then the two matching driving plates 68 on the bearing connecting rods 64 can be driven to exit the connecting channel 53, so that the dustproof mesh plate 5 and the driving lightweight strip 6 can be separated. The dustproof mesh plate 5 can be quickly pulled out from between the dust shield plates 17 and cleaned. After cleaning, the dustproof mesh plate 5 can be inserted back between the dust shield plates 17 and connected to the driving lightweight strip 6 again. The operation is very simple, convenient and fast.

[0047] 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 square aluminum-shell solid-state battery for energy storage with efficient thermal management, comprising a battery body, characterized in that: The battery body is symmetrically provided with heat dissipation channels, which are used to dissipate heat from the battery body when the battery body is in an abnormally heated state; A channel sealing component is installed in the heat dissipation channel. When the channel sealing component is fully inserted into the heat dissipation channel, the heat dissipation channel is sealed. When the channel sealing component partially protrudes from the upper side of the heat dissipation channel, communication between the interior of the battery body and the outside is achieved. The battery body is provided with a gas driving component, which drives the channel sealing component to move up and down; The gas drive assembly includes a gas carrier strip and a gas sealing plate, wherein the gas carrier strip is fixedly arranged on the battery body; The gas carrier strip is provided with a gas carrier cavity, and the gas sealing plate is inserted into the gas carrier cavity; The battery body is also provided with a movable dustproof mechanism, which cooperates with the channel sealing component to prevent dust therefrom, and the movable dustproof mechanism is driven to move downward by the channel sealing component.

2. The square aluminum shell solid-state battery for energy storage with efficient thermal management according to claim 1, characterized in that: The channel sealing component is a channel sealing sleeve, and the outer wall of the channel sealing sleeve is tightly fitted with the inner wall of the heat dissipation channel.

3. The square aluminum shell solid-state battery for energy storage with efficient thermal management according to claim 2, characterized in that: The channel sealing sleeve is provided with a ventilation channel, through which the interior of the battery body is connected with the outside world.

4. The square aluminum shell solid-state battery for energy storage with efficient thermal management according to claim 3, characterized in that: The gas sealing plate is connected to the channel sealing sleeve, driving the channel sealing sleeve to move up and down.

5. The square aluminum shell solid-state battery for energy storage with efficient thermal management according to claim 4, characterized in that: The movable dustproof mechanism includes a connecting linkage bar, a dustproof mesh plate and a driving lightweight bar. The connecting linkage bar is movably installed on the battery body, and the channel closing sleeve drives the connecting linkage bar to move when it moves upward.

6. The square aluminum shell solid-state battery for energy storage with efficient thermal management according to claim 5, characterized in that: The connecting linkage bar is movably connected to a driving lightweight bar, and a load-bearing connecting rod is movably installed on the driving lightweight bar.

7. The square aluminum shell solid-state battery for energy storage with high thermal management efficiency according to claim 6, characterized in that: Rod end bearing blocks are fixedly provided at both ends of the bearing connecting rod, and a matching driving plug plate is fixedly provided on the rod end bearing blocks.

8. The square aluminum shell solid-state battery for energy storage with efficient thermal management according to claim 7, characterized in that: The driving light bar drives the plug plate to be connected with the dustproof screen plate through cooperation, so as to drive the dustproof screen plate to move up and down.

9. The square aluminum shell solid-state battery for energy storage with efficient thermal management according to claim 8, characterized in that: When the dustproof screen plate moves downward, the connecting link bar can limit the bearing connecting rod.

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