A buckle type lithium-manganese battery with an anti-explosion structure

Abstract

The application discloses a button type lithium-manganese battery with an anti-explosion structure and belongs to the technical field of button type lithium-manganese battery production. The button type lithium-manganese battery comprises a protective shell, a protective cover body movably arranged on the top surface of the protective shell, buffer plate assemblies movably arranged on two opposite inner walls of the protective shell, shock-absorbing plate assemblies arranged on the other two opposite inner walls of the protective shell, a protective base arranged on the bottom surface in the protective cover body, and a battery body arranged on the protective base. The shock-absorbing plate assembly comprises movable plates arranged in parallel on opposite sides of the protective base, the movable plates are movably arranged on the other two opposite inner walls of the protective shell through sliding buffer assemblies, a plurality of shock-absorbing column assemblies are movably and penetratively arranged on the bottom surface of the protective cover body and the protective shell, a positive electrode gasket is arranged in the protective cover body, and a negative electrode gasket is arranged in the bottom surface of the protective cover body. The application has the advantages of better improving the safety during use and reducing or preventing the loss caused by explosion.

Description

Technical Field

[0001] This invention relates to the field of button lithium manganese battery technology, and specifically to a button lithium manganese battery with an explosion-proof structure. Background Technology

[0002] Button-type lithium-manganese batteries are a type of battery that is lightweight, has a large capacity, and is very popular with a wide range of applications. They typically use manganese dioxide as the positive electrode material and metallic lithium or its alloys as the negative electrode material. However, existing button-type lithium-manganese batteries pose certain safety hazards during use. For example, they are prone to explosion when subjected to violent shaking or when the battery temperature or pressure is too high, leading to damage. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a button-type lithium manganese battery with an explosion-proof structure, which has the advantages of improving safety during use and reducing or preventing losses caused by explosions.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a button-type lithium manganese battery with an explosion-proof structure, including a protective shell, a protective cover movably disposed on the top surface of the protective shell, buffer plate assemblies movably disposed on two opposing inner walls of the protective shell, shock-absorbing plate assemblies disposed on the other two opposing inner walls of the protective shell, a protective base disposed on the bottom surface of the protective cover, a battery body disposed on the protective base, the shock-absorbing plate assembly includes movable plates arranged parallel to opposite sides of the protective base, the movable plates are movably disposed on the other two opposing inner walls of the protective shell through sliding buffer assemblies, a plurality of shock-absorbing column assemblies movably penetrate the bottom surface of the protective cover and the protective shell, a positive electrode gasket is disposed inside the protective cover, and a negative electrode gasket is disposed inside the bottom surface of the protective cover.

[0005] Preferably, the buffer plate assembly includes a mounting plate. Insertion slots are provided on the outer walls at both ends of the mounting plate along its length. A plurality of corrugated buffer plates are arranged in parallel on one of the outer walls along the width of the mounting plate. Each corrugated buffer plate is composed of a plurality of semi-circular buffer plates connected end-to-end. The arc-shaped openings of the semi-circular buffer plates face the mounting plate, and the semi-circular buffer plates on adjacent corrugated buffer plates are staggered. Buffer plate mounting slots are provided on two opposing inner walls of the protective shell. Insertion rods adapted to the insertion slots are provided on the opposing inner walls of the buffer plate mounting slots. The insertion slots are movably fitted onto the outside of the corresponding insertion rods. When the pressure is too high and the button-type lithium manganese battery explodes, the corrugated buffer plates can provide layer-by-layer buffering, avoiding or reducing the impact on the protective shell during the explosion, thereby reducing or preventing losses caused by the explosion.

[0006] Preferably, the sliding buffer assembly includes a sliding groove embedded in the inner wall of the protective shell, a through groove on the side wall of the sliding groove, a connecting plate movably passing through the through groove, a limit rod fixedly installed in the sliding groove, the sliding groove and the limit rod having the same length direction, one end of the connecting plate being fixedly connected to the side wall of the movable plate, the other end of the connecting plate being movably sleeved outside the limit rod, and a return spring being sleeved outside the limit rod, the two ends of the return spring being fixedly connected to the other end of the connecting plate and the top of the sliding groove, respectively. When the button lithium manganese battery explodes due to excessive pressure, it impacts the protective cover. Under the action of the sliding buffer assembly, the protective cover can reduce the damage caused by the impact force by the sliding of the connecting plate outside the limit rod.

[0007] Preferably, the shock-absorbing column assembly includes an externally threaded cylinder, and the bottom surfaces of the protective cover and the protective shell are provided with several internally threaded through holes. The externally threaded cylinder is threaded into the internally threaded through holes, and one end of the externally threaded cylinder is flush with the top surface of the protective cover or the bottom surface of the protective shell. Both ends of the externally threaded cylinder are open, and the other end of the externally threaded cylinder extends into the protective shell. A central tube is coaxially fixedly installed inside the other end of the externally threaded cylinder. A shock-absorbing column is movably inserted inside the end of the central tube away from the externally threaded cylinder. One end of the shock-absorbing column is flush with one end of the externally threaded cylinder, and the other end of the shock-absorbing column extends to the outside of the central tube. A buffer frustum is fixedly installed at the other end of the shock-absorbing column. Several shock-absorbing feet are evenly distributed circumferentially on the outer peripheral wall of the buffer frustum. A buffer spring is sleeved on the outside of the shock-absorbing column. The two ends of the buffer spring are fixedly connected to the central tube and the buffer frustum, respectively. The buffer frustum on the shock-absorbing column assembly can buffer the impact generated when the button lithium manganese battery explodes, so as to reduce or avoid damage to the bottom surface of the protective cover and the protective shell.

[0008] Preferably, a plurality of shock-absorbing feet are evenly distributed circumferentially on the end face of the large-diameter end of the buffer frustum. The cross-section of the shock-absorbing foot is a right-angled trapezoid, and the plane containing the right-angle side of the shock-absorbing foot is perpendicular to the end face of the large-diameter end of the buffer frustum. The top surface of the shock-absorbing foot is located inside the opening at the other end of the external threaded cylinder. When the impact generated by the explosion of the button lithium manganese battery through the buffer frustum on the shock-absorbing column assembly plays a buffering role, the impact force can push the buffer frustum to move towards the external threaded cylinder. At this time, the top surface of the shock-absorbing foot can be inserted into the opening at the other end of the external threaded cylinder. As the shock-absorbing foot is inserted, when the inclined side of the shock-absorbing foot gradually abuts against the inner wall of the opening at the other end of the external threaded cylinder, it can buffer the movement of the buffer frustum.

[0009] Preferably, the external threaded cylinder, central tube, shock-absorbing column, and buffer frustum are coaxial, which facilitates a compact overall structure of the shock-absorbing column assembly.

[0010] Preferably, a protective cover is fixedly installed inside one end of the external threaded cylinder, and one end of the shock-absorbing column abuts against the protective cover. When the pressure is too high and the button lithium manganese battery explodes, one end of the shock-absorbing column can break through the protective cover, making it easy to observe the damaged location.

[0011] Preferably, the bottom of each of the two opposing inner walls of the protective shell is provided with an arc-shaped groove, the bottom of the protective shell is a hollow structure, and the arc-shaped groove is connected to the bottom of the protective shell, so that the leakage generated by the button lithium manganese battery can flow through the arc-shaped groove to the bottom of the protective shell for collection.

[0012] The beneficial effects of the present invention are as follows: 1. By providing a buffer plate assembly and a shock-absorbing plate assembly on the peripheral wall of the protective shell, and a shock-absorbing column assembly on the bottom surface of both the protective cover and the protective shell, the present invention can buffer the impact force when the button lithium manganese battery explodes due to excessive pressure, thereby improving the safety of the button lithium manganese battery and reducing or preventing the loss caused by the explosion.

[0013] 2. The protective cover is connected to the movable plate, which facilitates the installation and replacement of button lithium manganese batteries. At the same time, when the button lithium manganese battery explodes due to excessive pressure, the protective cover can slide on the limit rod through the connecting plate under the action of the shock-absorbing plate assembly. The elastic force generated by the compression return spring can buffer the impact force generated by the button lithium manganese battery, thereby protecting the protective cover and reducing or avoiding damage to it.

[0014] 3. The external threaded cylinder of the shock absorber assembly is threaded into the internal threaded through hole. This facilitates replacement when damaged. Furthermore, the protective cover broken through by the shock absorber at different positions allows for observation of the location of damage caused by the impact force when the button lithium manganese battery explodes, thus enabling the identification of the location of the impact force during the explosion.

[0015] 4. The bottom of the protective casing has an arc-shaped groove, which allows leakage from the button lithium manganese battery to flow through the arc-shaped groove to the bottom of the protective casing for collection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 An exploded view of a button-type lithium manganese battery with an explosion-proof structure, provided as an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram showing the location of a shock-absorbing plate assembly for a button-type lithium manganese battery with an explosion-proof structure, provided in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram showing the position of a sliding buffer assembly of a button-type lithium manganese battery with an explosion-proof structure, provided in an embodiment of the present invention.

[0020] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.

[0021] Figure 5 This is a schematic diagram of a buffer plate assembly for a button-type lithium manganese battery with an explosion-proof structure, provided as an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of a shock-absorbing column assembly for a button-type lithium manganese battery with an explosion-proof structure, provided in an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the connection structure between the central tube and the shock-absorbing column of a button-type lithium manganese battery with an explosion-proof structure, provided in an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram showing the location of the protective cover of a button-type lithium manganese battery with an explosion-proof structure, provided as an embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the external threaded cylinder structure of a button lithium manganese battery with an explosion-proof structure when the protective cover is not installed, as provided in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. Protective outer shell; 11. Arc-shaped groove; 2. Protective cover; 3. Buffer plate assembly; 31. Mounting plate; 32. Insert rod groove; 33. Wave-shaped buffer plate; 34. Semi-circular buffer plate; 35. Buffer plate mounting groove; 36. Insert rod; 4. Shock-absorbing plate assembly; 41. Movable plate; 42. Sliding buffer assembly; 421. Sliding groove; 422. Through groove; 423. Connecting plate; 424. Limiting rod; 425. Return spring; 5. Protective base; 6. Battery body; 7. Shock-absorbing column assembly; 71. Externally threaded cylinder; 711. Internally threaded through hole; 712. Protective cover; 72. Central tube; 73. Shock-absorbing column; 74. Buffer frustum; 741. Shock-absorbing foot; 75. Buffer spring. Detailed Implementation

[0027] 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 some embodiments of the present invention, and not all embodiments. 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.

[0028] Example 1: As Figures 1 to 7 As shown, the present invention provides a button-type lithium manganese battery with an explosion-proof structure, including a protective shell 1, a protective cover 2 movably disposed on the top surface of the protective shell 1, buffer plate assemblies 3 movably disposed on two opposing inner walls of the protective shell 1, shock-absorbing plate assemblies 4 disposed on the other two opposing inner walls of the protective shell 1, a protective base 5 disposed on the bottom surface inside the protective cover 2, and a battery body 6 disposed on the protective base 5. The shock-absorbing plate assembly 4 includes movable plates 41 parallel to each other on opposite sides of the protective base 5, and the movable plates 41 are slidable. The buffer assembly 42 is movably mounted on the other two opposing inner walls of the protective shell 1. Several shock-absorbing column assemblies 7 are movably and continuously mounted on the bottom surfaces of both the protective cover 2 and the protective shell 1. A positive electrode gasket is installed inside the protective cover 2, and a negative electrode gasket is installed inside the bottom surface of the protective cover 2. The buffer plate assembly 3 includes a mounting plate 31. Insertion slots 32 are provided on the outer walls at both ends of the mounting plate 31 along its length. Several corrugated buffer plates 33 are arranged in parallel on one of the outer walls along the width of the mounting plate 31. Each corrugated buffer plate 33 consists of several semi-wave plates connected end-to-end. The system comprises circular buffer plates 34, with the arc-shaped openings of the semi-circular buffer plates 34 facing the mounting plate 31. The semi-circular buffer plates 34 on adjacent corrugated buffer plates 33 are staggered. Each of the two opposing inner walls of the protective housing 1 has a buffer plate mounting groove 35. Each opposing inner wall of the buffer plate mounting groove 35 is provided with a rod 36 that matches the rod slot 32. The rod slot 32 is movably fitted onto the outside of the corresponding rod 36. The sliding buffer assembly 42 includes a sliding groove 421 embedded in the inner wall of the protective housing 1. A through groove 422 is provided on the side wall, and a connecting plate 423 is movably installed through the through groove 422. A limit rod 424 is fixedly installed in the sliding groove 421. The sliding groove 421 and the limit rod 424 are in the same length direction. One end of the connecting plate 423 is fixedly connected to the side wall of the movable plate 41, and the other end of the connecting plate 423 is movably sleeved on the outside of the limit rod 424. A return spring 425 is also sleeved on the outside of the limit rod 424. The two ends of the return spring 425 are fixedly connected to the other end of the connecting plate 423 and the top of the sliding groove 421, respectively.

[0029] The protective shell 1 is provided with a buffer plate assembly 3 and a shock-absorbing plate assembly 4 on its peripheral wall, and a shock-absorbing column assembly 7 is provided on the bottom surface of both the protective cover 2 and the protective shell 1. These components can buffer the impact force when the button lithium manganese battery explodes due to excessive pressure.

[0030] When the pressure is too high and the button lithium manganese battery explodes, impacting the buffer plate assembly 3, the wave buffer plate 33 in the buffer plate assembly 3 can buffer the impact layer by layer, avoiding or reducing the impact on the protective shell 1 during the explosion, thereby reducing or avoiding the damage caused by the explosion; and the mounting plate 31 is movably connected in the buffer plate mounting groove 35 through the cooperation of the insertion rod groove 32 and the insertion rod 36, which also makes it easy to replace the mounting plate 31.

[0031] The protective cover 2 can be bolted to the movable plate 41 for easy installation and replacement of button lithium manganese batteries. When the pressure is too high and the button lithium manganese battery explodes, the impact on the protective cover 2 causes the protective cover 2 to move away from the protective shell 1, causing the connecting plate 423 to slide on the limiting rod 424 (the other end of the connecting plate 423 slides in the sliding groove 421). At the same time, the return spring 425 is compressed. The elastic force generated when the return spring 425 is compressed can buffer the impact force generated by the button lithium manganese battery, thereby protecting the protective cover 2 and reducing or avoiding damage to it.

[0032] A positive electrode pad is provided inside the protective cover 6, and a negative electrode pad is provided inside the bottom surface of the protective cover 6. When the battery body 6 is installed inside the protective shell 1 and the protective cover 2 is installed, the positive electrode pad and the negative electrode pad are in contact with the battery body 6, so that the electricity of the battery body 6 can be transferred to the negative electrode pad and the positive electrode pad respectively, which is convenient for use.

[0033] Example 2: Based on Example 1, as follows Figures 1 to 6As shown, the shock absorber assembly 7 includes an externally threaded cylinder 71. The bottom surfaces of the protective cover 2 and the protective shell 1 are each provided with several internally threaded through holes 711. The externally threaded cylinder 71 is threaded into the internally threaded through holes 711, and one end of the externally threaded cylinder 71 is flush with the top surface of the protective cover 2 or the bottom surface of the protective shell 1. Both ends of the externally threaded cylinder 71 are open. The other end of the externally threaded cylinder 71 extends into the protective shell 1. A central tube 72 is coaxially fixed inside the other end of the externally threaded cylinder 71. A shock absorber 73 is movably inserted into the end of the central tube 72 away from the externally threaded cylinder 71. One end of the shock absorber 73 is flush with one end of the externally threaded cylinder 71. The other end of the damping column 73 extends through to the outside of the central tube 72, and a buffer frustum 74 is fixedly installed at the other end of the damping column 73. Several damping feet 741 are evenly distributed circumferentially on the outer peripheral wall of the buffer frustum 74. A buffer spring 75 is sleeved on the outside of the damping column 73. The two ends of the buffer spring 75 are fixedly connected to the central tube 72 and the buffer frustum 74, respectively. Several damping feet 741 are evenly distributed circumferentially on the end face of the large diameter end of the buffer frustum 74. The cross section of the damping foot 741 is a right trapezoid. The plane where the right angle side of the damping foot 741 is located is perpendicular to the end face of the large diameter end of the buffer frustum 74, and the top surface of the damping foot 741 is located inside the opening at the other end of the external threaded cylinder 71.

[0034] When the pressure is too high and the button lithium manganese battery explodes, it can generate an impact force on the buffer frustum 74 in the corresponding internal threaded through hole 711, causing the buffer frustum 74 to move towards the central tube 72 (while compressing the buffer spring 75). At the same time, it also drives the shock absorber 73 to move in the central tube 72. As the shock absorber 73 moves, one end of the shock absorber 73 can break through the protective cover 712, making it easy to observe the location of the damage caused by the impact force when the button lithium manganese battery explodes.

[0035] A number of shock-absorbing feet 741 are evenly distributed circumferentially on the outer peripheral wall of the buffer frustum 74. The shock-absorbing feet 741 can move into the opening at the other end of the external threaded cylinder 71 as the buffer frustum 74 moves. Under the action of impact force, as the shock-absorbing feet 741 are inserted (inserted into the opening at the other end of the external threaded cylinder 71), and when the inclined side of the shock-absorbing feet 741 gradually comes into contact with the inner wall of the opening at the other end of the external threaded cylinder 71, a certain resistance is generated to the insertion of the shock-absorbing feet 741, so that the impact force can be buffered, thereby buffering the movement of the buffer frustum 74. Therefore, it can protect the bottom surface of the protective cover 2 and the protective shell 1.

[0036] Since the external threaded cylinder 71 is threaded into the internal threaded through hole 711, it can be replaced when the shock absorber assembly 7 is damaged.

[0037] Example 3: Based on Example 1, as follows Figure 1 , Figures 6 to 9As shown, a protective cover 712 is fixedly installed inside one end of the external threaded cylinder 71, and one end of the shock-absorbing column 73 abuts against the protective cover 712. When the pressure is too high and the button lithium manganese battery explodes, it can generate an impact force on the buffer frustum 74, causing the buffer frustum 74 to move towards the central tube 72 (while compressing the buffer spring 75). At the same time, it also drives the shock-absorbing column 73 to move inside the central tube 72. As the shock-absorbing column 73 moves, one end of the shock-absorbing column 73 can break through the protective cover 712, making it easy to observe the location of the damage caused by the impact force when the button lithium manganese battery explodes.

[0038] Example 4: Based on Example 1, as follows Figures 1 to 2 As shown, the bottom of each of the two opposing inner walls of the protective shell 1 is provided with an arc-shaped groove 11. The bottom of the protective shell 1 is a hollow structure, and the arc-shaped groove 11 is connected to the bottom of the protective shell 1, so that when the button lithium manganese battery leaks, the leaked liquid can flow through the arc-shaped groove 11 to the bottom of the protective shell 1 for collection. At the same time, the structure of the protective base 5 can be set so that the top surface is flat and the two opposing ends are arc-shaped structures. On the one hand, it is convenient for the button lithium manganese battery to be placed on the flat top of the protective base 5, and on the other hand, it is convenient for the leaked liquid to flow through the arc-shaped groove 11 to the bottom of the protective shell 1 for collection.

[0039] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A button-type lithium manganese battery with an explosion-proof structure, characterized in that, The system includes a protective shell (1), a protective cover (2) movably disposed on the top surface of the protective shell (1), buffer plate assemblies (3) movably disposed on two opposing inner walls of the protective shell (1), shock-absorbing plate assemblies (4) disposed on the other two opposing inner walls of the protective shell (1), a protective base (5) disposed on the bottom surface inside the protective cover (2), a battery body (6) disposed on the protective base (5), and shock-absorbing plate assemblies (4) including movable plates (4) arranged parallel to each other on opposite sides of the protective base (5). 1) The movable plates (41) are movably mounted on the other two opposing inner walls of the protective shell (1) via sliding buffer components (42). Several shock-absorbing column components (7) are movably and penetratingly arranged on the bottom surfaces of the protective cover (2) and the protective shell (1). A positive electrode gasket is provided inside the protective cover (2), and a negative electrode gasket is provided inside the bottom surface of the protective cover (2). The shock-absorbing column component (7) includes an externally threaded cylinder (71), and several internally threaded through holes are provided on the bottom surfaces of the protective cover (2) and the protective shell (1). 711), the external threaded cylinder (71) is threaded into the internal threaded through hole (711), and one end of the external threaded cylinder (71) is flush with the top surface of the protective cover (2) or the bottom surface of the protective shell (1). Both ends of the external threaded cylinder (71) are open. The other end of the external threaded cylinder (71) penetrates into the protective shell (1). A central tube (72) is coaxially fixed inside the other end of the external threaded cylinder (71). The end of the central tube (72) away from the external threaded cylinder (71) is movably inserted with The shock-absorbing column (73) has one end flush with one end of the external threaded cylinder (71), and the other end of the shock-absorbing column (73) extends through to the outside of the central tube (72). A buffer frustum (74) is fixedly installed at the other end of the shock-absorbing column (73). Several shock-absorbing feet (741) are evenly distributed along the circumferential direction on the outer peripheral wall of the buffer frustum (74). A buffer spring (75) is sleeved on the outside of the shock-absorbing column (73). The two ends of the buffer spring (75) are fixedly connected to the central tube (72) and the buffer frustum (74) respectively.

2. A button-type lithium manganese battery with an explosion-proof structure as described in claim 1, characterized in that, The buffer plate assembly (3) includes a mounting plate (31). The outer walls at both ends of the mounting plate (31) in the length direction are provided with insertion rod slots (32). Several wave buffer plates (33) are arranged side by side on one of the outer walls in the width direction of the mounting plate (31). The wave buffer plate (33) is composed of several semi-circular buffer plates (34) connected end to end. The arc-shaped opening of the semi-circular buffer plate (34) faces the mounting plate (31), and the semi-circular buffer plates (34) on two adjacent wave buffer plates (33) are staggered. The protective shell (1) has buffer plate mounting slots (35) on two opposing inner walls. Insert rods (36) that are compatible with the insertion rod slots (32) are provided on the opposing inner walls of the buffer plate mounting slots (35). The insertion rod slots (32) are movably sleeved on the outside of the corresponding insertion rods (36).

3. A button-type lithium manganese battery with an explosion-proof structure as described in claim 1, characterized in that, The sliding buffer assembly (42) includes a sliding groove (421) embedded in the inner wall of the protective shell (1). A through groove (422) is provided on the side wall of the sliding groove (421). A connecting plate (423) is movably disposed in the through groove (422). A limit rod (424) is fixedly disposed in the sliding groove (421). The length direction of the sliding groove (421) and the limit rod (424) is the same. One end of the connecting plate (423) is fixedly connected to the side wall of the movable plate (41). The other end of the connecting plate (423) is movably sleeved on the outside of the limit rod (424). A return spring (425) is also sleeved on the outside of the limit rod (424). The two ends of the return spring (425) are fixedly connected to the other end of the connecting plate (423) and the top of the sliding groove (421), respectively.

4. A button-type lithium manganese battery with an explosion-proof structure as described in claim 1, characterized in that, Several damping feet (741) are evenly distributed along the circumference on the end face of the large diameter end of the buffer frustum (74). The cross section of the damping foot (741) is a right trapezoid. The plane where the right angle side of the damping foot (741) is located is perpendicular to the end face of the large diameter end of the buffer frustum (74), and the top surface of the damping foot (741) is located in the opening at the other end of the external thread cylinder (71).

5. A button-type lithium manganese battery with an explosion-proof structure as described in claim 4, characterized in that, The external threaded cylinder (71), the central tube (72), the shock-absorbing column (73), and the buffer frustum (74) are coaxial.

6. A button-type lithium manganese battery with an explosion-proof structure as described in claim 5, characterized in that, A protective cover (712) is fixedly installed at one end of the external threaded cylinder (71), and one end of the shock-absorbing column (73) abuts against the protective cover (712).

7. A button-type lithium manganese battery with an explosion-proof structure as described in claim 1, characterized in that, The bottom of the two opposing inner walls of the protective shell (1) is provided with arc-shaped grooves (11). The bottom of the protective shell (1) is a hollow structure, and the arc-shaped grooves (11) are connected to the bottom of the protective shell (1).

Images