A lithium battery protection plate and a lithium battery with the protection plate

Abstract

The application discloses a lithium battery protection plate and a lithium battery with the protection plate, which comprises an outer protection assembly and an inner shell, a cover plate is installed at the top end of the inner shell, a lithium battery accommodating cavity is formed between the inner shell and the cover plate, and the inner shell and the cover plate are located inside the outer protection assembly after being assembled; the outer protection assembly comprises an outer protection frame, corner reinforcing parts are arranged at the corners of the outer protection frame, first buffer parts are arranged on the two long inner side faces of the outer protection frame, and second buffer parts are arranged on the two short inner side faces of the outer protection frame. According to the application, the lithium battery main body can be protected by the outer protection assembly, and the impact resistance of the lithium battery main body is improved; the lithium battery main body is further protected by the shell, so that the influence of external impact on the battery cell is avoided, the safety of the battery cell is ensured, and the possibility of disaster occurrence is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium batteries, in particular to a lithium battery protection plate and a lithium battery with the protection plate. BACKGROUND

[0002] Now the lithium battery protection plate in the design time in order to better protect the lithium battery, now many protection plate inside all set up buffer pad, with buffer pad will be lithium battery clamping fixed, so as to realize the protection of lithium battery when fixed.

[0003] The existing announcement No. CN119674383A discloses a shockproof and anti-collision lithium battery protection plate, which comprises a shell, a shockproof assembly for reducing vibration of a battery pack is arranged in the shell, the shockproof assembly is arranged at four corners in the shell, anti-collision assemblies one for reducing impact force are arranged on the front and back sides of the shell, an anti-collision assembly two is arranged below the shell, the anti-collision assembly two is used for further reducing impact force, when the shell is impacted in front, the lithium battery can be moved backward through mutual cooperation of the anti-collision assembly one and the connecting assembly, so that damage of the lithium battery caused by the deformed shell is avoided, thereby the probability of self-ignition and explosion of the lithium battery is reduced, and when a smaller impact is received, the obstacles can be discharged to avoid affecting driving safety.

[0004] The existing announcement No. CN116780038A discloses a lithium battery protection plate and a lithium battery device with the same, the lithium battery protection plate comprises a circuit board, a heat dissipation cover and a heating device, the heat dissipation cover is fixed above the circuit board and close to electronic components on the circuit board; the heating device comprises a carrier plate and a heating plate, the carrier plate is pivotally connected to the heat dissipation cover around a horizontal axis, and the heating plate is fixed on a surface of the carrier plate and used for heating the battery; the carrier plate can be switched between at least a first position and a second position in a rotation range, when the carrier plate is located at the first position, the carrier plate is parallel to the circuit board, and when the carrier plate is located at the second position, the carrier plate is perpendicular to the circuit board. The installation structure is simple, and the problem of local heating can be avoided, more uniform heating is achieved, and the performance of the battery in a low-temperature environment is improved.

[0005] Although the lithium battery protection plate of the prior art can protect the lithium battery to a certain extent, the protection performance is relatively poor when the lithium battery is impacted, the battery cell is easily knocked, and a certain safety hazard is caused, therefore, the present application provides a lithium battery protection plate and a lithium battery with the protection plate. SUMMARY

[0006] The present application aims to provide a lithium battery protection plate and a lithium battery with the protection plate to solve the problems in the prior art.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a lithium battery protection plate, comprising an outer protection assembly and an inner shell, a cover plate is installed at the top end of the inner shell, a lithium battery accommodating cavity is formed between the inner shell and the cover plate, and the inner shell and the cover plate are located inside the outer protection assembly after assembly; the lithium battery body can be protected by the outer protection assembly, and the impact resistance of the lithium battery body is improved; the existence of the outer shell further protects the battery cell, thereby avoiding the influence of external impact on the battery cell, ensuring the safety of the battery cell, and reducing the possibility of disaster occurrence; the outer protection assembly comprises an outer protection frame, corner reinforcing parts are arranged at the corners of the outer protection frame, first buffer parts are arranged on the two long inner sides of the outer protection frame, and second buffer parts are arranged on the two short inner sides of the outer protection frame; the corner reinforcing parts are arranged at the corners of the outer protection frame, the corner reinforcing parts can reinforce the outer protection frame, the capacity of bearing impact can be improved when the outer protection frame is impacted, the first buffer parts are arranged on the two long inner sides of the outer protection frame, the second buffer parts are arranged on the two short inner sides of the outer protection frame, the first buffer parts have a corrugated structure, the second buffer parts have a corrugated structure, the outer protection assembly has a certain buffering performance due to the first buffer parts and the second buffer parts, the lithium battery body can be buffered to a certain extent in the outer protection assembly, adjacent buffer parts do not contact, and the outer protection assembly can be buffered within a certain range; the first buffer parts are provided with elastic sheets at the bending parts on one side of the outer protection frame, the second buffer parts are provided with elastic sheets at the bending parts on one side of the outer protection frame, the elastic sheets are arc-shaped metal sheets, and the elastic sheets enhance the resetting effect of the buffer parts, and further enhance the buffering performance and impact resistance of the buffer parts.

[0008] Preferably, the first buffer part has a corrugated structure, and the second buffer part has a corrugated structure.

[0009] Preferably, the first buffer part is provided with an elastic sheet at the bending part on one side of the outer protection frame, and the second buffer part is provided with an elastic sheet at the bending part on one side of the outer protection frame.

[0010] Preferably, the elastic sheet is an arc-shaped metal sheet.

[0011] Preferably, a fire extinguishing gas bag is filled in a cavity formed by the corrugated structure, a perfluorohexone extinguishing agent is filled in the fire extinguishing gas bag, the fire extinguishing gas bag is a non-pressure storage type, is efficient and safe, and is suitable for high-risk scenes. When subjected to extreme impact, the outer protection assembly is damaged under pressure, the outer protection assembly is deformed to the limit, the fire extinguishing gas bag is broken, and the lithium battery is protected, thereby solving the problem that a large area of a vehicle is burned due to fire of the lithium battery caused by impact, and improving the safety of the lithium battery in use.

[0012] A lithium battery with a protection plate uses the lithium battery protection plate, which comprises a lithium battery body, a connecting head, a fuse, a unit lithium battery group, an MCU assembly and a connecting rod, the unit lithium battery group is provided with multiple units, the adjacent unit lithium battery groups are connected through the connecting rod, the MCU assembly and one of the unit lithium battery groups are connected with the connecting head through wires, and the wires between the unit lithium battery group and the connecting head are provided with fuses; the cover plate and the outer protection assembly are both provided with through holes for the connecting head to penetrate.

[0013] Preferably, the unit lithium battery group comprises a bottom plate and a top plate, a plurality of battery cells are installed between the bottom plate and the top plate, two horizontal rods are installed at the bottom end of the bottom plate, two horizontal rods are installed at the top end of the top plate, the two corresponding horizontal rods are connected through a communication rod, the adjacent battery cells are connected through connecting pieces, and the bottom plate, the top plate, the battery cells and the horizontal rods are locked through a locking frame.

[0014] Preferably, one end of each horizontal rod is provided with a terminal.

[0015] Preferably, the bottom plate and the top plate both comprise a plate body, the plate body is provided with a plurality of limiting holes matched with the battery cells, and a limiting plate is installed at the limiting hole of the plate body; the limiting hole and the limiting plate can fix the battery cells between the top plate and the bottom plate, ensure the stability of the battery cells, and improve the stable conductivity of the battery cells.

[0016] Preferably, it further comprises a base and a lifting tray, the bottom end of the base is provided with a mounting seat, the mounting seat is provided with a lifting cylinder for driving the lifting tray to lift, the bottom end of the base is provided with a push-pull cylinder, the push-pull cylinder drives the fixed plate to reciprocate, a plurality of vertical plates are installed at equal intervals on the fixed plate, each vertical plate is provided with a pressing rod, the base is provided with a guide sleeve, and the fixed plate is provided with a guide rod matched with the guide sleeve; the pressing rod limits the top of the lithium battery (mainly used for truck lithium batteries, which have a large space and can well accommodate the device), so as to realize the omnibearing limitation of the lithium battery and make the disassembly and limitation of the lithium battery more convenient; the base is provided with a guide sleeve, the fixed plate is provided with a guide rod matched with the guide sleeve, the guide sleeve and the guide rod improve the stability of the movement of the fixed plate, and further improve the limiting effect.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1. The inner shell and the cover plate are assembled inside the outer protection assembly; the outer protection assembly can protect the lithium battery body and improve the impact resistance of the lithium battery body; the existence of the outer shell further protects the battery cells, thereby avoiding the influence of external impact on the battery cells, ensuring the safety of the battery cells and reducing the possibility of disaster occurrence.

[0019] 2. Corner reinforcement sections are provided at the corners of the outer protective frame to strengthen it and improve its impact resistance. Two long inner sides of the outer protective frame are equipped with first buffers, and two short inner sides are equipped with second buffers. Both buffers have a corrugated structure, providing a certain level of cushioning for the outer protective assembly. This allows the lithium battery to be cushioned within the outer protective assembly, as adjacent buffers do not contact each other, ensuring a certain range of cushioning. A spring sheet is provided at the bend of both the first and second buffers on one side of the outer protective frame. The spring sheet is an arc-shaped metal piece, enhancing the reset effect of the buffer and further improving its cushioning and impact resistance.

[0020] 3. Two crossbars are installed at the bottom of the base plate and two crossbars are installed at the top of the top plate. The two corresponding crossbars are connected by a connecting rod. The two crossbars serve to conduct electricity and also to reinforce the structure. Adjacent cells are connected by connecting pieces. The base plate, top plate, cells and crossbars are locked together by a locking frame. The locking frame locks each component, improving the stability of each component.

[0021] 4. The plate has multiple limiting holes that mate with the battery cell. Limiting plates are installed at the limiting holes on the plate. The combined effect of the limiting holes and the limiting plates can fix the battery cell well between the top plate and the bottom plate, ensuring the stability of the battery cell and improving its stable conductivity.

[0022] 5. The corrugated structure forms a cavity filled with a fire extinguishing airbag, which is filled with perfluorohexanone extinguishing agent. This non-pressurized airbag is highly efficient and safe, suitable for high-risk scenarios. Under extreme impact, the outer protective components deform under pressure, rupturing the fire extinguishing airbag and protecting the lithium battery. This addresses the issue of widespread combustion caused by lithium battery fires due to impacts, improving the safety of lithium battery use.

[0023] 6. The mounting base is equipped with a lifting cylinder that drives the lifting tray to move up and down. The lifting tray limits the bottom and sides of the lithium battery. A push-pull cylinder is installed at the bottom of the base. The push-pull cylinder pushes the fixed plate to move back and forth. Multiple upright plates are installed at equal intervals on the fixed plate. Each upright plate is equipped with a pressure rod. The pressure rod limits the top of the lithium battery (mainly used for lithium batteries in trucks, where the space is large enough to accommodate this device well). This achieves all-round limitation of the lithium battery, making the installation and removal of the lithium battery more convenient. The base is equipped with a guide sleeve, and the fixed plate is equipped with a guide rod that cooperates with the guide sleeve. The guide sleeve and guide rod improve the stability of the fixed plate movement and further enhance the limiting effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are meant to explain the application without limiting the application to the embodiments shown. In the drawings:

[0025] Figure 1 is a structural schematic diagram of the application;

[0026] Figure 2 is a front view of the outer protective assembly of the application;

[0027] Figure 3 is a structural schematic diagram of the lithium battery body of the application;

[0028] Figure 4 is a structural schematic diagram of the inside of the lithium battery body of the application;

[0029] Figure 5 is a structural schematic diagram of the application Figure 4 is a structural schematic diagram from another perspective;

[0030] Figure 6 is a structural schematic diagram of the unit lithium battery pack of the application;

[0031] Figure 7 is a structural schematic diagram of the bottom plate and the top plate of the application;

[0032] Figure 8 is a structural schematic diagram of the fixing of the outer protective assembly of the application;

[0033] Figure 9 is a structural schematic diagram of the application Figure 8 is a structural schematic diagram when the outer protective assembly is removed;

[0034] Figure 10 is a structural schematic diagram of the application Figure 9 is a structural schematic diagram from the bottom perspective.

[0035] In the drawings: 1, outer protective assembly; 2, lithium battery body; 3, base; 4, lifting tray; 5, push-pull air cylinder; 6, guide rod; 7, mounting seat; 8, guide sleeve; 9, fixed plate; 10, vertical plate; 11, pressing rod; 12, lifting air cylinder; 101, corner reinforcing part; 102, outer protective frame; 103, first buffer; 104, spring piece; 105, second buffer; 201, inner housing; 202, cover plate; 203, connecting head; 204, fuse; 205, unit lithium battery pack; 206, MCU assembly; 207, connecting rod; 2051, bottom plate; 2052, cell; 2053, top plate; 2054, terminal; 2055, locking frame; 2056, cross bar; 2057, connecting piece; 2058, communication rod; 20511, plate body; 20512, limiting hole; 20513, limiting plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0037] Please see Figures 1-7 In this embodiment of the invention, a lithium battery protection board includes an outer protective component 1 and an inner shell 201. A cover plate 202 is installed on the top of the inner shell 201, and a lithium battery receiving cavity is formed between the inner shell 201 and the cover plate 202. After assembly, the inner shell 201 and the cover plate 202 are located inside the outer protective component 1. The outer protective component 1 can protect the lithium battery body and improve the impact resistance of the lithium battery body. Due to the presence of the outer shell, the lithium battery body 2 further protects the cell, thereby avoiding the impact of external impacts on the cell, ensuring the safety of the cell, and reducing the possibility of disasters.

[0038] The outer protective component 1 includes an outer protective frame 102. Corner reinforcement parts 101 are provided at each corner of the outer protective frame 102. The corner reinforcement parts 101 reinforce the outer protective frame 102, improving its impact resistance. Two long inner surfaces of the outer protective frame 102 are provided with first buffer members 103, and two short inner surfaces of the outer protective frame 102 are provided with second buffer members 105. Both the first and second buffer members 103 and 105 have a corrugated structure. 5. The outer protective component 1 has a certain buffering performance, so that the lithium battery body 2 can be buffered within the outer protective component 1. Adjacent buffers do not contact each other, so that the outer protective component 1 can buffer within a certain range. The first buffer 103 is provided with a spring piece 104 at the bend on one side of the outer protective frame 102, and the second buffer 105 is provided with a spring piece 104 at the bend on one side of the outer protective frame 102. The spring piece 104 is an arc-shaped metal sheet. The spring piece 104 enhances the reset effect of the buffer and further enhances the buffering performance and impact resistance of the buffer.

[0039] The formed cavity of the wave-shaped structure is filled with a fire extinguishing air bag, the fire extinguishing air bag is filled with perfluorohexanone extinguishing agent, the fire extinguishing air bag adopts a non-pressure storage type air bag, which is efficient and safe, and is suitable for high-risk scenes. When subjected to extreme impact, the outer protection assembly 1 is damaged under pressure, the outer protection assembly 1 is deformed to the limit, and the fire extinguishing air bag is broken, thereby protecting the lithium battery, solving the problem of large-scale burning of the vehicle caused by the fire of the lithium battery due to impact, and improving the safety of the lithium battery.

[0040] A lithium battery with a protection plate uses the lithium battery protection plate, which comprises a lithium battery body 2, a connecting head 203, a fuse 204, a unit lithium battery group 205, an MCU assembly 206 and a connecting rod 207, the unit lithium battery group 205 is provided with a plurality of unit lithium battery groups 205, and the adjacent unit lithium battery groups 205 are connected through the connecting rod 207, the MCU assembly 206 and one of the unit lithium battery groups 205 are connected through wires and the connecting head 203, the fuse 204 is installed on the wire between the unit lithium battery group 205 and the connecting head 203, and the fuse 204 improves the safety of electricity; the cover plate 202 and the outer protection assembly 1 are both provided with through holes for the connecting head 203 to penetrate.

[0041] The unit lithium battery group 205 comprises a bottom plate 2051 and a top plate 2053, a plurality of battery cells 2052 are installed between the bottom plate 2051 and the top plate 2053, two horizontal rods 2056 are installed at the bottom end of the bottom plate 2051, two horizontal rods 2056 are installed at the top end of the top plate 2053, two corresponding horizontal rods 2056 are connected through a communication rod 2058, and the two horizontal rods 2056 can also play a reinforcing role while conducting; adjacent battery cells 2052 are connected through connecting pieces 2057, the bottom plate 2051, the top plate 2053, the battery cells 2052 and the horizontal rods 2056 are locked by a locking frame 2055, and each component is locked by the locking frame 2055; one end of each horizontal rod 2056 is provided with a terminal 2054.

[0042] The bottom plate 2051 and the top plate 2053 both comprise a plate body 20511, a plurality of limiting holes 20512 matched with the battery cells 2052 are formed in the plate body 20511, and a limiting plate 20513 is installed at the limiting hole 20512 of the plate body 20511; the limiting hole and the limiting plate can fix the battery cell between the top plate and the bottom plate, ensure the stability of the battery cell, and improve the stable conductivity of the battery cell.

[0043] As Figures 8-10It also includes the base 3 and the lifting tray 4, the base 3 is provided with the mounting seat 7 at the bottom end, the mounting seat 7 is provided with the lifting cylinder 12 for driving the lifting tray 4 to lift, the bottom and the side of the lithium battery are limited by the lifting tray 4, the push-pull cylinder 5 is installed at the bottom end of the base 3, the fixed plate 9 is reciprocally moved by the push-pull cylinder 5, a plurality of vertical plates 10 are installed at equal intervals on the fixed plate 9, the pressure rod 11 is installed on each vertical plate 10, and the top of the lithium battery is limited by the pressure rod (mainly used for truck lithium batteries, and the truck space is large, so that the device can be well accommodated), so that the lithium battery is limited in all directions, and the disassembly and assembly of the lithium battery are more convenient, the base 3 is provided with the guide sleeve 8, the fixed plate 9 is provided with the guide rod 6 matched with the guide sleeve 8, and the stability of the movement of the fixed plate is improved by the guide sleeve and the guide rod.

[0044] The working principle of the present application is that the inner shell 201 and the cover plate 202 are assembled in the outer protection assembly 1; the lithium battery body can be protected by the outer protection assembly 1, and the impact resistance of the lithium battery body is improved; the lithium battery body 2 is further protected by the shell, thereby avoiding the influence of external impact on the battery cell, ensuring the safety of the battery cell, and reducing the possibility of disaster occurrence.

[0045] The corner reinforcing portions 101 are arranged at the corners of the outer protection frame 102, the corner reinforcing portions 101 can reinforce the outer protection frame 102, and when impacted, the impact bearing capacity can be improved, the first buffer 103 is arranged on the two long inner sides of the outer protection frame 102, the second buffer 105 is arranged on the two short inner sides of the outer protection frame 102, the first buffer 103 is of a corrugated structure, the second buffer 105 is of a corrugated structure, the outer protection assembly 1 has a certain buffering performance due to the first buffer 103 and the second buffer 105, so that the lithium battery body 2 can be buffered in the outer protection assembly 1, adjacent buffers do not contact, so that the outer protection assembly 1 can be buffered within a certain range; the bending portion on one side of the outer protection frame 102 is provided with the elastic sheet 104, the bending portion on one side of the outer protection frame 102 is provided with the elastic sheet 104, the elastic sheet 104 is an arc-shaped metal sheet, the elastic sheet 104 enhances the reset effect of the buffer, and further enhances the buffering performance and impact resistance of the buffer;

[0046] The bottom end of the bottom plate 2051 is provided with two horizontal rods 2056, and the top end of the top plate 2053 is provided with two horizontal rods 2056. The two corresponding horizontal rods 2056 are connected by a communication rod 2058. The two horizontal rods 2056 can guide and reinforce at the same time. Adjacent battery cells 2052 are connected by a connecting sheet 2057. The bottom plate 2051, the top plate 2053, the battery cell 2052 and the horizontal rod 2056 are locked by a locking frame 2055. The locking frame 2055 locks each component to improve the stability of each component.

[0047] The plate body 20511 is provided with a plurality of limiting holes 20512 matched with the battery cell 2052. The plate body 20511 is provided with a limiting plate 20513 at the limiting hole 20512. The limiting hole and the limiting plate can well fix the battery cell between the top plate and the bottom plate, ensure the stability of the battery cell, and improve the stable conductivity of the battery cell.

[0048] The bottom and side of the lithium battery are limited by the lifting tray 4. The base 3 is provided with a push-pull air cylinder 5 at the bottom end. The push-pull air cylinder 5 drives the fixed plate 9 to reciprocate. The fixed plate 9 is provided with a plurality of vertical plates 10 at equal intervals. Each vertical plate 10 is provided with a pressing rod 11. The top of the lithium battery is limited by the pressing rod (mainly used for truck lithium batteries. The truck has a large space and can well accommodate the device). Thus, the lithium battery is limited in all directions, and the disassembly and positioning of the lithium battery are more convenient. The base 3 is provided with a guide sleeve 8. The fixed plate 9 is provided with a guide rod 6 matched with the guide sleeve 8. The guide sleeve and the guide rod improve the stability of the movement of the fixed plate.

[0049] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A lithium battery for a truck having a protective plate, characterized by: Including lithium battery body (2), connecting head (203), fuse (204), unit lithium battery group (205), MCU assembly (206) and connecting rod (207), the unit lithium battery group (205) is provided with multiple, adjacent the unit lithium battery group (205) is connected through connecting rod (207), the MCU assembly (206) and one of unit lithium battery group (205) are connected through wire with connecting head (203), the wire between unit lithium battery group (205) and connecting head (203) is installed with fuse (204);Cover plate (202) and outer protection assembly (1) are all set up with the through hole of connecting head (203) penetrates; The unit lithium battery group (205) includes bottom plate (2051) and top plate (2053), a plurality of battery cells (2052) are installed between the bottom plate (2051) and the top plate (2053), two horizontal rods (2056) are installed at the bottom end of the bottom plate (2051), two horizontal rods (2056) are installed at the top end of the top plate (2053), two corresponding horizontal rods (2056) are connected by a communication rod (2058), adjacent battery cells (2052) are connected by a connecting sheet (2057), and the bottom plate (2051), the top plate (2053), the battery cells (2052) and the horizontal rods (2056) are locked by a locking frame (2055). The bottom plate (2051) and the top plate (2053) each include a plate body (20511), the plate body (20511) is provided with a plurality of limiting holes (20512) matched with the battery cells (2052), and the plate body (20511) is provided with a limiting plate (20513) at the limiting hole (20512). It also includes a base (3) and a lifting tray (4), the bottom end of the base (3) is provided with a mounting seat (7), the mounting seat (7) is provided with a lifting cylinder (12) for driving the lifting tray (4) to lift, the bottom end of the base (3) is provided with a push-pull cylinder (5), the push-pull cylinder (5) drives a fixed plate (9) to move back and forth, the fixed plate (9) is provided with a plurality of vertical plates (10) at equal intervals, each vertical plate (10) is provided with a pressing rod (11), the base (3) is provided with a guide sleeve (8), and the fixed plate (9) is provided with a guide rod (6) matched with the guide sleeve (8). The protection plate comprises an outer protection assembly (1) and an inner shell (201), the inner shell (201) is provided with a cover plate (202) at the top end, a lithium battery accommodating cavity is formed between the inner shell (201) and the cover plate (202), and the inner shell (201) and the cover plate (202) are located inside the outer protection assembly (1) after assembly. The outer protection assembly (1) comprises an outer protection frame (102), corner reinforcing portions (101) are arranged at the corners of the outer protection frame (102), first buffer members (103) are arranged on the two long inner side surfaces of the outer protection frame (102), and second buffer members (105) are arranged on the two short inner side surfaces of the outer protection frame (102). The first buffer (103) is a wave-shaped structure, and the second buffer (105) is a wave-shaped structure; The first buffer (103) is provided with an elastic sheet (104) at the bending part on one side of the outer protective frame (102), and the second buffer (105) is provided with an elastic sheet (104) at the bending part on one side of the outer protective frame (102). The elastic sheet (104) is an arc-shaped metal sheet. The wave-shaped structure is filled with a fire-extinguishing air bag, the fire-extinguishing air bag is filled with a perfluorohexanone extinguishing agent, and the fire-extinguishing air bag is a non-pressure storage type air bag.

2. The lithium battery for a truck having a protective plate according to claim 1, wherein: Each of the horizontal rods (2056) is provided with a terminal (2054) at one end.

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