Replaceable battery structure and lithium battery

Abstract

The utility model discloses a replaceable battery structure and lithium cell, replaceable battery structure includes conductive reinforcing sheet, pole and casing, be equipped with the installation space with the installation mouth on the casing, the bottom of pole is installed in the installation space, and the top of pole is from the installation mouth and is stretched out and is connected with conductive reinforcing sheet electricity. The utility model discloses that the top of pole is connected with conductive reinforcing sheet and covers on the installation mouth, and conductive reinforcing sheet has anticorrosion and conductivity, can insulate pole and air, avoids the oxidation rust of pole because of direct contact air, can promote the conductivity of pole, can also enhance the overall strength of battery structure, makes the replacement of replaceable battery structure can be realized smoothly simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a replaceable battery structure and a lithium battery. Background Technology

[0002] Currently, replaceable battery structures are often fixed to the battery compartment by welding. Once battery performance deteriorates or lifespan ends, consumers often cannot replace the battery themselves and need to seek professional repair services or complete replacement, increasing usage costs. When replacing the battery compartment with a replaceable battery structure, the battery terminals are prone to oxidation and rust due to exposure to air. Moreover, uneven stress on the contacts of the replaceable battery structure during the replacement process can lead to poor contact, thus affecting battery performance and lifespan. More importantly, the conductive parts in the replaceable battery and the conductive parts in the battery compartment are connected by contact, which often results in weak conductive contact and unstable structural strength due to the poor conductivity of conventional materials. Summary of the Invention

[0003] This utility model provides a replaceable battery structure and a lithium battery to solve the technical problem that the replaceable battery structure is difficult to replace from the battery compartment in the prior art.

[0004] This utility model embodiment provides a replaceable battery structure, including a conductive reinforcement sheet, an electrode post, and a housing. The housing is provided with an installation space having an installation opening. The bottom of the electrode post is installed in the installation space, and the top of the electrode post extends out from the installation opening and is electrically connected to the conductive reinforcement sheet.

[0005] Optionally, the conductive reinforcement sheet includes one of nickel-plated stainless steel sheet, pure nickel sheet, gold-plated conductive sheet, and silver-plated conductive sheet.

[0006] Optionally, the conductive reinforcement sheet is welded to the top of the electrode post.

[0007] Optionally, the replaceable battery structure further includes a first insulating element disposed on the top surface of the conductive reinforcement sheet.

[0008] Optionally, the bottom of the pole within the installation space is a pole plate, the top of the pole extending out of the installation port is a connecting column, and a gap is left between the connecting column and the housing at the installation port;

[0009] The conductive reinforcing sheet covers the top of the connecting column; and the conductive reinforcing sheet covers the gap between the housings of the connecting column and the edge of the housing at the mounting opening.

[0010] Optionally, the cross-sectional width of the electrode plate is greater than the cross-sectional width of the mounting opening; the replaceable battery structure further includes a second insulating member, the second insulating member including a first insulating portion disposed in the gap between the connecting post and the housing, the first insulating portion including a first insulating body located in the gap between the connecting post and the housing;

[0011] The second insulating member further includes a second insulating portion formed by the bottom of the first insulator extending along the gap between the top surface of the electrode plate and the housing, and a third insulating portion formed by the top of the first insulator extending along the gap between the bottom surface of the conductive reinforcing sheet and the housing.

[0012] Optionally, the replaceable battery structure also includes explosion-proof valves disposed on the housing, and a support and clearance member is disposed on the housing around the explosion-proof valves. The support and clearance member supports the external space of the housing at the explosion-proof valves so that the explosion-proof valves can extend outwards when they burst open.

[0013] Optionally, the explosion-proof valve is located on the opposite side of the housing where the mounting port is provided; the support clearance member is an insulating rubber part, which is attached to the housing and arranged around the explosion-proof valve.

[0014] Optionally, a stabilizing clearance member is provided on the top surface of the housing with the mounting port. The stabilizing clearance member supports the external space of the housing at the mounting port, and the top surface of the stabilizing clearance member is flush with the top surface of the conductive reinforcing sheet.

[0015] This utility model also provides a lithium battery, including a battery compartment with a receiving space and the above-mentioned replaceable battery structure; the replaceable battery structure can be detachably installed in the battery compartment.

[0016] In this utility model, the replaceable battery structure includes a conductive reinforcing sheet, an electrode post, and a housing. The housing is provided with an installation space having an installation opening. The bottom of the electrode post is installed in the installation space, and the top of the electrode post extends out from the installation opening and is electrically connected to the conductive reinforcing sheet.

[0017] In this invention, the bottom of the electrode post is installed within the installation space, and the top of the electrode post passes through the installation opening and extends outside the housing, electrically connecting to the conductive reinforcing sheet. That is, the conductive reinforcing sheet connects to the top of the electrode post and covers the installation opening. The conductive reinforcing sheet has strong corrosion resistance and can isolate the electrode post from the air, preventing oxidation and rust due to direct contact with air, thus ensuring the conductivity of the electrode post. Furthermore, the conductive reinforcing sheet has strong conductivity, further improving the conductivity of the electrode post. It can efficiently transfer current from the electrode post to the conductive part of the battery compartment. Thus, not only is the conductivity between the electrode post and the conductive part of the battery compartment enhanced, but also, while ensuring stable and efficient current transmission between the battery structure and the conductive parts of the battery compartment, the replacement of the battery structure can be smoothly achieved. When the battery is subjected to external impact or vibration, the conductive reinforcing sheet can effectively disperse pressure to enhance the overall strength of the battery structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a replaceable battery structure in one embodiment of the present invention.

[0020] The reference numerals in the accompanying drawings are as follows:

[0021] 10-Cell, 20-Terminal post, 21-Electrical plate, 22-Connecting post, 30-Second insulating component, 31-First insulating part, 311-First insulator, 32-Second insulating part, 33-Third insulating part, 40-Negative electrode sheet, 50-Conductive reinforcing sheet, 60-Housing, 70-Supporting and clearance component, 80-Stabilizing and clearance component, 90-First insulating component. Detailed Implementation

[0022] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1 As shown, one embodiment of this utility model provides a replaceable battery structure, including a conductive reinforcing sheet 50, a terminal post 20, and a housing 60. The housing 60 is provided with an installation space (not shown) having an installation opening (not shown). The bottom of the terminal post 20 is installed in the installation space, and the top of the terminal post 20 extends from the installation opening and is electrically connected to the conductive reinforcing sheet 50. The housing 60 has an installation opening and an installation space, the installation opening and the installation space are connected, the bottom of the terminal post 20 is installed in the installation space, the top of the terminal post 20 extends from the installation opening, the conductive reinforcing sheet 50 is installed on the top of the terminal post 20, and the conductive reinforcing sheet 50 covers the installation opening and extends beyond the outer edge of the installation opening. The conductive reinforcing sheet 50 has strong corrosion resistance and strong conductivity. The top of the terminal post 20 is connected to the conductive part of the battery compartment through the conductive reinforcing sheet 50 to complete the installation between the replaceable battery structure and the battery compartment.

[0026] In this invention, the bottom of the terminal post 20 is installed within the installation space, and the top of the terminal post 20 passes through the installation opening and extends out of the housing 60, electrically connecting to the conductive reinforcing sheet 50. That is, the conductive reinforcing sheet 50 connects to the top of the terminal post 20 and covers the installation opening. The conductive reinforcing sheet 50 has strong corrosion resistance and can isolate the terminal post 20 from the air, preventing oxidation and rust due to direct contact with air, thus ensuring the conductivity of the terminal post 20. Furthermore, the strong conductivity of the conductive reinforcing sheet 50 further enhances the conductivity of the terminal post 20, enabling efficient current transfer from the terminal post 20 to the conductive part of the battery compartment. This not only enhances the electrical conductivity between the terminal post 20 and the conductive part of the battery compartment, but also ensures stable and efficient current transmission between the battery structure and the conductive parts of the battery compartment, allowing for smooth battery structure replacement. When the battery is subjected to external impact or vibration, the conductive reinforcing sheet 50 can effectively disperse pressure to enhance the overall strength of the battery structure.

[0027] In one embodiment, such as Figure 1 As shown, the conductive reinforcing sheet 50 includes one of the following: nickel-plated stainless steel sheet, pure nickel sheet, gold-plated conductive sheet, and silver-plated conductive sheet. Understandably, the material used to manufacture the conductive reinforcing sheet 50 can be selected according to requirements, as long as it has corrosion resistance and conductivity. Specifically, the conductive reinforcing sheet 50 includes, but is not limited to, nickel-plated stainless steel sheet, pure nickel sheet, gold-plated conductive sheet, and silver-plated conductive sheet.

[0028] In one embodiment, such as Figure 1 As shown, the conductive reinforcement sheet 50 is welded to the top of the terminal post 20. Understandably, the connection seal formed when the conductive reinforcement sheet 50 is welded to the top of the terminal post 20 not only ensures a strong and durable connection between the conductive reinforcement sheet 50 and the terminal post 20, preventing the conductive reinforcement sheet 50 from loosening due to vibration or external impact; it also helps prevent the top of the terminal post 20 from direct contact with oxygen and water vapor in the air, thereby reducing the risk of oxidation and corrosion, maintaining good conductivity, and thus allowing the replaceable battery structure to be used in different types of battery compartments.

[0029] In one embodiment, such as Figure 1 As shown, the replaceable battery structure also includes a first insulating member 90 disposed on the top surface of the conductive reinforcement sheet 50. Understandably, the first insulating member 90, disposed on the top surface of the conductive reinforcement sheet 50, provides additional insulation protection for the conductive reinforcement sheet 50, greatly reducing the risk of short circuits caused by external factors; the first insulating member 90 can also serve as a protective layer, effectively preventing damage to the conductive reinforcement sheet 50 caused by scratches or impacts from external objects; the first insulating member 90 can also, to a certain extent, fix the conductive reinforcement sheet 50, preventing it from moving or loosening within the housing 60.

[0030] In one embodiment, such as Figure 1 As shown, the bottom of the terminal post 20 within the mounting space is the electrode plate 21, and the top of the terminal post 20 extending out of the mounting opening is the connecting post 22. A gap exists between the connecting post 22 and the housing 60 at the mounting opening. The conductive reinforcing sheet 50 covers the top of the connecting post 22 and covers the gap between the connecting post 22 and the housing 60, as well as the edge of the housing 60 at the mounting opening. Understandably, the terminal post 20 includes the electrode plate 21 at the bottom of the mounting space and the connecting post 22 extending out of the mounting opening. A gap exists between the connecting post 22 and the housing 60. The conductive reinforcing sheet 50 covers the top of the connecting post 22 and the gap, effectively filling the potential gap between the connecting post 22 and the housing 60, preventing external substances (such as dust and moisture) from entering the battery, and further enhancing the overall strength of the battery structure.

[0031] In another embodiment, such as Figure 1 As shown, the replaceable battery structure also includes a battery cell 10 and a negative electrode plate 40; the battery cell 10 is installed within the mounting space; the negative electrode plate 40 is installed on the housing 60, and the negative electrode plate 40 has an inner hole communicating with the mounting port; the electrode plate 21 of the terminal post 20 is installed within the mounting space and connected to the positive electrode of the battery cell 10, and the negative electrode of the battery cell 10 is connected to the bottom of the housing 60, so that the terminal post 20 and the housing 60 have opposite polarities. The connecting post 22 of the terminal post 20 extends through the mounting port and the inner hole, and the conductive reinforcement plate 50 connects to the top of the connecting post 22 and covers the inner hole; this ensures that current can be efficiently transferred from the battery cell 10 through the terminal post 20 and the conductive reinforcement plate 50 to the conductive part of the battery compartment, reducing resistance and energy loss.

[0032] In one embodiment, such as Figure 1As shown, the cross-sectional width of the electrode plate 21 is greater than the cross-sectional width of the mounting opening. The replaceable battery structure also includes a second insulating member 30, which includes a first insulating portion 31 disposed in the gap between the connecting post 22 and the housing 60. The first insulating portion 31 includes a first insulator 311 located within the gap between the connecting post 22 and the housing. The second insulating member 30 also includes a second insulating portion 32 formed by the bottom of the first insulator 311 extending along the gap between the top surface of the electrode plate 21 and the housing, and a third insulating portion 33 formed by the top of the first insulator 311 extending along the gap between the bottom surface of the conductive reinforcing sheet 50 and the housing 60. Understandably, the cross-sectional width of the electrode plate 21 is greater than the cross-sectional width of the mounting opening so that the electrode plate 21 is always installed within the mounting space and is not easily detached from the mounting opening. The first insulating part 31 abuts between the conductive reinforcing sheet 50 and the negative electrode sheet 40, the second insulating part 32 abuts between the negative electrode sheet 40 and the electrode plate 21, and the third insulating part 33 abuts between the negative electrode sheet 40 on the connecting column 22 and the housing 60. Thus, in the radial direction of the mounting opening, the conductive reinforcing sheet 50, the first insulating part 31, the negative electrode sheet 40, the second insulating part 32, and the electrode plate 21 are sequentially connected to form five load-bearing structural layers. That is, the conductive reinforcing sheet 50 and the negative electrode sheet 40 overlap the opposite end faces of the first insulating part 31, and the conductive reinforcing sheet 50 and the negative electrode sheet 40 are staggered and have overlapping portions. When the battery structure is replaced from the battery compartment or when the battery structure is subjected to external impact or vibration, the overlapping portions can disperse the external pressure, effectively strengthen the inward bearing force of the battery structure, enhance the strength of the battery structure, and thus better maintain the integrity and stability of the battery structure.

[0033] In another embodiment, such as Figure 1 As shown, the top surface of the first insulating portion 31 is flush with the top surface of the connecting post 22. Understandably, the top surface of the first insulating portion 31 and the top surface of the connecting post 22 are on the same horizontal plane, allowing the conductive reinforcing sheet 50 to be flush and stably connected to the connecting post 22. This helps ensure the stability of the electrical connection between the conductive reinforcing sheet 50 and the connecting post 22, preventing poor contact or loose connection due to unevenness of the conductive reinforcing sheet 50, thereby improving the electrical performance and safety of the replaceable battery structure. When the top surface of the first insulating portion 31 is flush with the top surface of the connecting post 22, the assembly process of the battery structure is also simplified, making it easier to align and fix the components during assembly. The flush design also improves the aesthetic appearance of the battery structure.

[0034] In one embodiment, such as Figure 1As shown, the shapes of the conductive reinforcing sheet 50, the first insulating portion 31, and the second insulating portion 32 can be set according to the specific shape requirements of the battery structure. When they are all circular, the outer ring diameter of the second insulating portion 32 is larger than the outer ring diameter of the first insulating portion 31. Understandably, the larger outer ring diameter of the second insulating portion 32 increases its contact area with the negative electrode sheet 40, providing a stable support surface for the negative electrode sheet 40, thereby improving the overall stability of the battery structure. The smaller outer diameter of the first insulating portion 31 ensures that the end face of the negative electrode sheet 40 facing away from the second insulating portion 32 is not covered by insulating material, allowing the negative electrode sheet 40 to be electrically connected to external devices, ensuring an effective and reliable connection between the battery structure and the external circuit.

[0035] Furthermore, in another embodiment, the conductive reinforcing sheet 50, the first insulating portion 31, the negative electrode sheet 40, the second insulating portion 32, the connecting post 22, and the electrode plate 21 are all coaxially arranged; the conductive reinforcing sheet 50, the first insulating portion 31, the negative electrode sheet 40, the second insulating portion 32, the connecting post 22, and the electrode plate 21 are all symmetrically arranged around the central axis of the mounting port. This symmetrical arrangement can ensure that the battery structure is subjected to uniform force in all directions, avoid structural damage that may be caused by stress concentration of external forces during battery replacement, and enhance the overall strength of the battery structure; it can also ensure that the current transmission in the battery structure is more uniform, reduce the problem of uneven current distribution that may be caused by structural asymmetry, and thus improve the stability of electrical connection.

[0036] In one embodiment, such as Figure 1 As shown, the replaceable battery structure also includes an explosion-proof valve disposed on the housing 60. A support and clearance member 70 is disposed on the housing 60 surrounding the explosion-proof valve. The support and clearance member 70 supports the external space of the housing 60 at the explosion-proof valve to allow the explosion-proof valve to extend outwards when it bursts open. Understandably, both the explosion-proof valve and the support and clearance member 70 are disposed on the housing 60, and the support and clearance member 70 is disposed on the housing 60 surrounding the explosion-proof valve to form a clearance space for the explosion-proof valve to extend. When the internal gas pressure of the battery abnormally increases, and the explosion-proof valve can be quickly opened to release the internal high-pressure gas, the clearance space formed by the support and clearance member 70 around the explosion-proof valve provides sufficient extension space for the explosion-proof valve to open. The explosion-proof valve will not be obstructed by the housing 60 or other components, improving the reliability and efficiency of the explosion-proof valve.

[0037] In one embodiment, such as Figure 1As shown, the explosion-proof valve is located on the side of the housing 60 opposite to where the mounting port is provided; the support clearance member 70 is an insulating rubber part, which is attached to the housing 60 and arranged around the explosion-proof valve. Understandably, the placement of the support clearance member 70 and the explosion-proof valve is not limited to a specific location and can be flexibly adjusted according to the battery structure and actual needs. For example, when the explosion-proof valve is installed at the bottom of the housing 60, the end of the support clearance member 70 away from the housing 60 abuts against the bottom surface of the battery compartment. When the internal gas pressure of the battery abnormally increases, the explosion-proof valve can be quickly opened to release the internal high-pressure gas. At this time, the clearance space provided on the support clearance member 70 at the position opposite to the explosion-proof valve ensures that the explosion-proof valve at the bottom of the housing 60 has sufficient space to extend when opened.

[0038] In one embodiment, such as Figure 1 As shown, a stabilizing clearance member 80 is provided on the top surface of the housing 60 where the mounting opening is located. The stabilizing clearance member 80 supports the external space of the housing 60 at the mounting opening, and the top surface of the stabilizing clearance member 80 is flush with the top surface of the conductive reinforcing sheet 50. Understandably, the top surface of the stabilizing clearance member 80 and the top surface of the conductive reinforcing sheet 50 are on the same horizontal plane, ensuring that the entire replaceable battery structure maintains a high degree of stability when placed in the battery compartment. This helps to prevent the replaceable battery structure from shaking or tilting during replacement and use, thereby ensuring good contact between the replaceable battery structure and the battery compartment. Furthermore, the stabilizing clearance member 80 supporting the external space of the housing 60 at the mounting opening not only provides additional protection for the electronic components and batteries inside the housing 60, but the supported space also serves as a heat dissipation channel, helping heat to dissipate from the interior of the housing 60.

[0039] This utility model also provides a lithium battery, including a battery compartment with a receiving space (not shown) and the above-described replaceable battery structure; the replaceable battery structure is detachably installed in the battery compartment. In the lithium battery of the above embodiments of this utility model, the replaceable battery structure includes a conductive reinforcing sheet 50, an electrode post 20, and a housing 60. The housing 60 is provided with an installation space (not shown) having an installation opening (not shown); the bottom of the electrode post 20 is installed in the installation space, and the top of the electrode post 20 extends out from the installation opening and is electrically connected to the conductive reinforcing sheet 50. The housing 60 has an installation port and an installation space. The installation port is connected to the installation space. The bottom of the terminal post 20 is installed in the installation space, and the top of the terminal post 20 extends out of the installation port. The conductive reinforcing sheet 50 is installed on the top of the terminal post 20 and covers the installation port and extends out of the outer edge of the installation port. The conductive reinforcing sheet 50 has strong corrosion resistance and strong conductivity. The top of the terminal post 20 is connected to the conductive part of the battery compartment through the conductive reinforcing sheet 50 to complete the installation between the replaceable battery structure and the battery compartment.

[0040] In the lithium battery of the above embodiments of this utility model, since the bottom of the terminal post 20 is installed in the installation space, and the top of the terminal post 20 passes through the installation port and extends out of the housing 60 and is electrically connected to the conductive reinforcing sheet 50, that is, the conductive reinforcing sheet 50 connects to the top of the terminal post 20 and covers the installation port. The conductive reinforcing sheet 50 has strong corrosion resistance and can isolate the terminal post 20 from the air, preventing the terminal post 20 from oxidizing and rusting due to direct contact with the air, thus ensuring the conductivity of the terminal post 20. In addition, the conductive reinforcing sheet 50 has strong conductivity, which further improves the conductivity of the terminal post 20. The conductive reinforcing sheet 50 can efficiently transfer current from the terminal post 20 to the conductive part of the battery compartment. In this way, not only is the conductivity between the terminal post 20 and the conductive part of the battery compartment enhanced, but also the replacement of the battery structure can be smoothly realized while ensuring that the battery structure and the conductive part of the battery compartment can achieve stable and efficient current transmission. When the battery is subjected to external impact or vibration, the conductive reinforcing sheet 50 can also effectively disperse the pressure to enhance the overall strength of the battery structure.

[0041] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A replaceable battery structure, characterized in that, It includes a conductive reinforcing sheet (50), a pole (20), and a housing (60), the housing (60) having an installation space with an installation opening; the bottom of the pole (20) is installed in the installation space, and the top of the pole (20) extends out from the installation opening and is electrically connected to the conductive reinforcing sheet (50).

2. The replaceable battery structure according to claim 1, characterized in that, The conductive reinforcement sheet (50) includes one of the following: nickel-plated stainless steel sheet, pure nickel sheet, gold-plated conductive sheet, and silver-plated conductive sheet.

3. The replaceable battery structure according to claim 1, characterized in that, The conductive reinforcing sheet (50) is welded to the top of the pole (20).

4. The replaceable battery structure according to claim 1, characterized in that, The replaceable battery structure also includes a first insulating element (90) disposed on the top surface of the conductive reinforcing sheet (50).

5. The replaceable battery structure according to claim 1, characterized in that, The pole post (20) is located at the bottom of the installation space as a pole plate (21), and the top of the pole post (20) extending out of the installation port is a connecting column (22). A gap is left between the connecting column (22) and the housing (60) at the installation port. The conductive reinforcing sheet (50) covers the top of the connecting column (22); and the conductive reinforcing sheet (50) covers the gap between the connecting column (22) and the housing (60), as well as the edge of the housing (60) at the mounting port.

6. The replaceable battery structure according to claim 5, characterized in that, The cross-sectional width of the electrode plate (21) is greater than the cross-sectional width of the mounting port; the replaceable battery structure also includes a second insulating member (30), the second insulating member (30) includes a first insulating part (31) disposed in the gap between the connecting post (22) and the housing (60), the first insulating part (31) includes a first insulator (311) located in the gap between the connecting post (22) and the housing (60). The second insulating member (30) further includes a second insulating portion (32) formed by the bottom of the first insulator (311) extending along the gap between the top surface of the electrode plate (21) and the housing (60), and a third insulating portion (33) formed by the top of the first insulator (311) extending along the gap between the bottom surface of the conductive reinforcing sheet (50) and the housing (60).

7. The replaceable battery structure according to claim 1, characterized in that, The replaceable battery structure also includes explosion-proof valves disposed on the housing (60), and a support and clearance member (70) is disposed on the housing (60) around the explosion-proof valve. The support and clearance member (70) supports the external space of the housing (60) at the explosion-proof valve so that the explosion-proof valve can extend outward when it bursts open.

8. The replaceable battery structure according to claim 7, characterized in that, The explosion-proof valve is located on the opposite side of the housing (60) where the mounting port is provided; the support and clearance member (70) is an insulating rubber part, the support and clearance member (70) is attached to the housing (60) and arranged around the explosion-proof valve.

9. The replaceable battery structure according to claim 7, characterized in that, The housing (60) has a mounting opening on its top surface, and a stabilizing clearance member (80) is provided thereon. The stabilizing clearance member (80) supports the external space of the housing (60) at the mounting opening. The top surface of the stabilizing clearance member (80) is flush with the top surface of the conductive reinforcing sheet (50).

10. A lithium battery, characterized in that, It includes a battery compartment with a receiving space and a replaceable battery structure as described in any one of claims 1-9; the replaceable battery structure is detachably installed in the battery compartment.

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