Lithium titanate battery

Abstract

The utility model discloses a lithium titanate battery which comprises a lithium titanate battery main body, a plurality of connecting columns are fixedly connected to the upper end and the lower end of the lithium titanate battery main body respectively, first threaded holes are formed in the connecting columns, the lithium titanate battery further comprises a pair of protective shells matched with the lithium titanate battery main body, and sliding blocks are connected to the protective shells in a sliding mode. The sliding block is provided with a first through hole, the sliding block is in threaded connection with a first bolt matched with the first through hole, the first bolt penetrates through the first through hole to be in threaded connection with the first threaded hole, and a connecting structure is arranged between the pair of protective shells. Compared with the prior art, the lithium titanate battery disclosed by the utility model has the advantages that a protection mode can be selected according to the use working condition, the influence on normal use of the battery due to a single protection mode is avoided as far as possible, in other words, the lithium titanate battery can be well protected and also has a certain heat dissipation effect, and the service life of the battery is prolonged. And the condition of over-high battery temperature caused by the protection device is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically relating to a lithium titanate battery. Background Technology

[0002] Lithium titanate batteries have attracted widespread attention in the energy storage field due to their unique structure and performance. However, in practical applications, lithium titanate batteries are prone to gas generation during charging and discharging, caused by the chemical reaction between lithium titanate and the electrolyte. This gas formation not only shortens the battery's lifespan but may also threaten its safety. Especially under extreme conditions, a rapid increase in internal pressure can even lead to a battery explosion, resulting in serious consequences.

[0003] To address this issue, some manufacturers and research institutions have designed protective devices to solve the gas-filling problem. However, while improving battery protection, some existing protective devices often neglect to improve battery heat dissipation, resulting in poor heat dissipation. This not only affects battery lifespan but may also lead to excessively high battery temperatures, further exacerbating the gas-filling phenomenon.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a lithium titanate battery that can solve the technical problems mentioned in the background section.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A lithium titanate battery includes a lithium titanate battery body, with multiple connecting posts fixedly connected to the upper and lower ends of the lithium titanate battery body. Each connecting post has a first threaded hole. The lithium titanate battery also includes a pair of protective shells that match the lithium titanate battery body. A slider is slidably connected to the protective shell. The slider has a first through hole. A first bolt that matches the first through hole is threadedly connected to the slider. The first bolt passes through the first through hole and is threadedly connected to the first threaded hole. A connection structure is provided between the pair of protective shells.

[0008] In one or more embodiments of this utility model, the connection structure includes a connecting lug fixedly connected to the protective housing, the connecting lug having a second threaded hole, and a second bolt matching the second threaded hole being threadedly connected to the connecting lug, the second bolt being used to thread-connect the two connecting lugs.

[0009] In one or more embodiments of this utility model, a spring is sleeved on the second bolt, and the spring is located between the two connecting lugs.

[0010] In one or more embodiments of this utility model, a connection port is fixedly connected to the protective housing, and a matching sealing cap is installed on the connection port.

[0011] In one or more embodiments of this utility model, the protective housing is provided with a groove that matches the connecting post, the slider is slidably connected in the groove, and a sealing cloth is installed between the slider and the side wall of the groove.

[0012] In one or more embodiments of this utility model, the protective housing is provided with a plurality of heat dissipation holes.

[0013] In one or more embodiments of this utility model, a pair of L-shaped limiting strips matching the heat dissipation holes are fixedly connected to the protective housing. The pair of L-shaped limiting strips are located on both sides of the heat dissipation holes, and the pair of L-shaped limiting strips form a slide rail. A protective plate is slidably connected in the slide rail.

[0014] In one or more embodiments of this utility model, the protective plate has strip-shaped holes that match the heat dissipation holes.

[0015] In one or more embodiments of this utility model, the L-shaped limiting strip has a waist hole, the protective plate has a third threaded hole that matches the waist hole, and the protective plate is threaded with a third bolt that matches the third threaded hole. The third bolt passes through the waist hole and is threadedly connected to the third threaded hole.

[0016] In one or more embodiments of this utility model, the L-shaped limiting strip has a waist hole, the protective plate has a third threaded hole that matches the waist hole, and the protective plate is threaded with a third bolt that matches the third threaded hole. The third bolt passes through the waist hole and is threadedly connected to the third threaded hole.

[0017] Compared with the prior art, the lithium titanate battery of this utility model can select the protection method according to the operating conditions, so as to avoid the battery's normal use being affected by a single protection method. In other words, the lithium titanate battery can not only be well protected, but also have a certain heat dissipation effect, reducing the possibility of the battery temperature becoming too high due to the protection device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 recorded in 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 the exploded structure of a lithium titanate battery according to one embodiment of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0021] Figure 3 This is a first state diagram of a lithium titanate battery according to an embodiment of the present invention;

[0022] Figure 4 This is a second state diagram of a lithium titanate battery according to an embodiment of the present invention.

[0023] Explanation of key figure labels:

[0024] 1. Lithium titanate battery body; 2. Connecting post; 201. First threaded hole; 3. Protective shell; 301. Slide groove; 302. Heat dissipation hole; 4. Connecting ear; 401. Second threaded hole; 5. Slider; 501. First through hole; 6. Sealing cloth; 7. First bolt; 8. Second bolt; 9. Spring; 10. Protective plate; 1001. Strip hole; 1002. Third threaded hole; 11. L-shaped limiting strip; 1101. Waist hole; 12. Third bolt; 13. Connecting port; 14. Sealing cover. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0026] like Figures 1-4As shown, a lithium titanate battery according to one embodiment of the present invention includes a lithium titanate battery body 1. Multiple connecting posts 2 are fixedly connected to the upper and lower ends of the lithium titanate battery body 1, and each connecting post 2 has a first threaded hole 201. The lithium titanate battery also includes a pair of protective shells 3 that match the lithium titanate battery body 1. The pair of protective shells 3 protect the lithium titanate battery body 1 from both sides, minimizing the risk of damage caused by external factors. If the lithium titanate battery body 1 explodes, the pair of protective shells 3 can block the shock wave generated by the lithium titanate battery body 1, reducing the serious consequences caused by the explosion.

[0027] like Figures 1-2 As shown, a slider 5 is slidably connected to the protective housing 3. The protective housing 3 has a groove 301 that matches the connecting post 2, and the slider 5 is slidably connected within the groove 301. The slider 5 has a first through hole 501, and a first bolt 7 that matches the first through hole 501 is threaded onto the slider 5. The first bolt 7 passes through the first through hole 501 and is threadedly connected to the first threaded hole 201. Because the slider 5 is slidably connected to the protective housing 3, when the protective housing 3 and the lithium titanate battery body 1 are fixed by the first bolt 7, the slider 5 can change the gap between the pair of protective housings 3, allowing either contact between the opposing surfaces of the pair of protective housings 3 or preventing contact between them.

[0028] like Figures 3-4 As shown, when the two protective shells 3 are in contact, they effectively protect the lithium titanate battery body 1. If the lithium titanate battery body 1 explodes, the protective shells 3 can block the shock wave generated by the explosion as much as possible. Conversely, when the two protective shells 3 are not in contact, there is a gap between them, and part of the lithium titanate battery body 1 is exposed. In this case, the lithium titanate battery body 1 can have better heat dissipation, minimizing the impact of the protective shells 3 on its heat dissipation performance. Because a connecting structure is installed between the pair of protective shells 3, the contact between the protective shells 3 can be controlled, thereby changing the state of the pair of protective shells 3 protecting the lithium titanate battery body 1, so that the lithium titanate battery body 1 can adapt to different working conditions.

[0029] like Figures 1-2 As shown, to improve the protective effect of the protective housing 3, a sealing cloth 6 is installed between the slider 5 and the side wall of the slide groove 301. The sealing cloth 6 can be made of high-temperature resistant rubber to fill the gap between the slider 5 and the slide groove 301, reducing the possibility of dust entering the protective housing 3 from the gap between the slider 5 and the slide groove 301.

[0030] like Figures 1-2 As shown, the connection structure includes connecting lugs 4 fixedly connected to the protective housing 3. A second threaded hole 401 is provided on the connecting lug 4, and a second bolt 8 matching the second threaded hole 401 is threaded onto the connecting lug 4. The second bolt 8 is used to thread-connect the two connecting lugs 4. That is, after adjusting the gap between the two protective housings 3, the second bolt 8 is sequentially threaded onto the two second threaded holes 401 to fix the two protective housings 3.

[0031] like Figures 1-2 As shown, a spring 9 is fitted onto the second bolt 8. The spring 9 is located between the two connecting lugs 4. The spring 9 can increase the friction between the second threaded hole 401 and the threaded connection of the second bolt 8, thereby improving the stability of the second bolt 8.

[0032] like Figures 1-2 As shown, a connection port 13 is fixedly connected to the protective housing 3, and a matching sealing cap 14 is installed on the connection port 13. When the two protective housings 3 provide sealed protection for the lithium titanate battery body 1, the heat dissipation effect of the lithium titanate battery body 1 is poor. The heat of the lithium titanate battery body 1 can be reduced by removing the sealing cap 14 on the connection port 13 and connecting it to a gas pipe, thereby extending the service life of the lithium titanate battery body 1 by supplying gas into the protective housing 3.

[0033] like Figures 1-2 As shown, the protective housing 3 has several heat dissipation holes 302. A pair of L-shaped limiting strips 11, matching the heat dissipation holes 302, are fixedly connected to the protective housing 3. The pair of L-shaped limiting strips 11 are located on both sides of the heat dissipation holes 302, forming a slide rail. A protective plate 10 is slidably connected within the slide rail. The protective plate 10 has strip-shaped holes 1001 that match the heat dissipation holes 302. During the up-and-down sliding of the protective plate 10 along the slide rail, the strip-shaped holes 1001 and the heat dissipation holes 302 become misaligned. At this time, the protective housing 3 is relatively closed. If the strip-shaped holes 1001 and the heat dissipation holes 302 are aligned, air can enter the protective housing 3 through the strip-shaped holes 1001 to improve the heat dissipation performance of the lithium titanate battery body 1.

[0034] Specifically, the L-shaped limiting strip 11 has a waist hole 1101, and the protective plate 10 has a third threaded hole 1002 that matches the waist hole 1101. A third bolt 12 that matches the third threaded hole 1002 is threaded onto the protective plate 10. The third bolt 12 passes through the waist hole 1101 and is threaded into the third threaded hole 1002. When the third bolt 12 is tightened, the protective plate 10 is fixed to the protective shell 3, making it difficult for the protective plate 10 to slide on the slide, thereby realizing the adjustment of the position of the protective plate 10. This allows the strip hole 1001 and the heat dissipation hole 302 to switch between misaligned and aligned states.

[0035] When using, such as Figures 3-4 As shown, the protection method of the protective shell 3 needs to be selected according to the actual operating conditions. If the protective shell 3 provides full protection, the first bolt 7 needs to be threaded through the first through hole 501 and connected to the first threaded hole 201, but not tightened. Then, the protective shell 3 is adjusted so that the two protective shells 3 are in contact with each other, and then the protective shell 3 is tightened. Then, the two second threaded holes 401 are threaded together by the second bolt 8 to tighten the two protective shells 3, achieving secondary tightening. In this state, if heat dissipation of the lithium titanate battery body 1 is required, the position of the protective plate 10 can be adjusted on the slide.

[0036] If the protective shell 3 does not provide full protection, repeat the above steps. The difference is that the two protective shells 3 are not in contact, and a gap is formed between the two protective shells 3.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lithium titanate battery, characterized in that, The battery includes a lithium titanate battery body, with multiple connecting posts fixedly connected to the upper and lower ends of the lithium titanate battery body. Each connecting post has a first threaded hole. The lithium titanate battery also includes a pair of protective shells that match the lithium titanate battery body. A slider is slidably connected to the protective shell. The slider has a first through hole. A first bolt that matches the first through hole is threadedly connected to the slider. The first bolt passes through the first through hole and is threadedly connected to the first threaded hole. A connection structure is provided between the pair of protective housings.

2. A lithium titanate battery according to claim 1, characterized in that, The connection structure includes a connecting lug fixedly connected to the protective housing. The connecting lug has a second threaded hole, and a second bolt that matches the second threaded hole is threadedly connected to the connecting lug. The second bolt is used to thread-connect the two connecting lugs.

3. A lithium titanate battery according to claim 2, characterized in that, A spring is fitted onto the second bolt, and the spring is located between the two connecting lugs.

4. A lithium titanate battery according to any one of claims 1 to 3, characterized in that, The protective housing is fixedly connected to a connection port, and a matching sealing cap is installed on the connection port.

5. A lithium titanate battery according to any one of claims 1 to 3, characterized in that, The protective housing has a groove that matches the connecting column. The slider is slidably connected in the groove, and a sealing cloth is installed between the slider and the side wall of the groove.

6. A lithium titanate battery according to claim 1, characterized in that, The protective housing has several heat dissipation holes.

7. A lithium titanate battery according to claim 6, characterized in that, A pair of L-shaped limiting strips matching the heat dissipation holes are fixedly connected to the protective shell. The pair of L-shaped limiting strips are located on both sides of the heat dissipation holes, and the pair of L-shaped limiting strips form a slide rail. A protective plate is slidably connected in the slide rail.

8. A lithium titanate battery according to claim 7, characterized in that, The protective plate has strip-shaped holes that match the heat dissipation holes.

9. A lithium titanate battery according to claim 7, characterized in that, The L-shaped limiting strip has a waist hole, and the protective plate has a third threaded hole that matches the waist hole. The protective plate is threaded with a third bolt that matches the third threaded hole, and the third bolt passes through the waist hole and is threadedly connected to the third threaded hole.

10. A lithium titanate battery according to claim 8, characterized in that, The L-shaped limiting strip has a waist hole, and the protective plate has a third threaded hole that matches the waist hole. The protective plate is threaded with a third bolt that matches the third threaded hole, and the third bolt passes through the waist hole and is threadedly connected to the third threaded hole.

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