A battery and vehicle

Abstract

The utility model provides a kind of battery and vehicle, battery includes base, cover, at least two core packages and multiple pole posts;Base is equipped with mounting groove;Core package is set in mounting groove;Each core package is connected with pole post;Cover is connected with base to cover set in mounting groove, cover is equipped with multiple pole post holes, and pole post is worn in pole post hole;Among them, at least two pole posts include first pole post and second pole post, and first pole post and second pole post are worn in same pole post hole.The battery of the application embodiment can reduce the number of pole post holes, to improve the sealing effect of cover.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a battery and a vehicle. Background Technology

[0002] Batteries are commonly used energy storage components in vehicles, ships, charging stations, and other equipment. Taking start-stop batteries as an example, a start-stop battery is a high-performance battery specifically designed for automotive start-stop systems. Its main function is to support the rapid starting of the engine during frequent start-stop operations and to provide stable power to the vehicle's electrical equipment.

[0003] In related technologies, start-stop batteries include a casing, a cell pack, and terminals. The cell pack is housed within the casing, and the terminals are connected to the cell pack and pass through the casing. Therefore, the casing needs to have a large number of terminal holes for the terminals to pass through, resulting in poor sealing at the terminals. Utility Model Content

[0004] Embodiments of this utility model provide a battery and a vehicle that can improve the technical problem of poor sealing at the terminals.

[0005] In a first aspect, embodiments of the present invention provide a battery, the battery comprising:

[0006] The base has a mounting groove;

[0007] At least two core packages are disposed within the mounting slot;

[0008] Multiple terminals, each of the core packages being connected to one of the terminals; and,

[0009] A cover body, which is connected to the base to cover the mounting groove, and the cover body is provided with a plurality of pole holes, through which the poles pass;

[0010] The at least two poles include a first pole and a second pole, which are inserted through the same pole hole, thereby reducing the number of pole holes on the cover and improving the sealing effect at the pole.

[0011] In some embodiments, the electrode hole through which the first electrode post and the second electrode post pass is a circular hole, thereby making the area of ​​the electrode hole through which the first electrode post and the second electrode post pass is small.

[0012] In some implementations, the first pole and the second pole are electrically connected, thereby allowing the core package connected to the first pole and the second pole to be connected in series, in parallel, or in a mixed configuration.

[0013] In some implementations, one of the first pole and the second pole is a positive pole and the other is a negative pole, thereby allowing the core package connected to the first pole and the second pole to be connected in series.

[0014] In some embodiments, the end of the first pole located outside the cover and the end of the second pole located outside the cover abut each other, thereby achieving an electrical connection between the first pole and the second pole, so that the area of ​​the pole hole through which the first pole and the second pole pass can be smaller.

[0015] In some embodiments, the first electrode post includes a first connecting portion and a first output portion. The first connecting portion is connected to the core package, and the first output portion is connected to the end of the first connecting portion near the second electrode post. The first output portion passes through the electrode post hole, thereby making the area of ​​the electrode post hole through which the first output portion and the second electrode post pass through smaller.

[0016] In some embodiments, the second pole post includes a second connecting portion and a second output portion. The second connecting portion is connected to the core package, and the second output portion is connected to the end of the second connecting portion near the first pole post. The second output portion passes through the pole post hole, and the second output portion abuts against the first output portion, thereby making the area of ​​the pole post hole through which the second output portion and the first output portion pass through smaller.

[0017] In some embodiments, the end of the first output portion away from the first connection portion and the end of the second output portion away from the second connection portion are both semi-cylindrical, so that the end of the first output portion away from the first connection portion and the end of the second output portion away from the second connection portion can be spliced ​​together to form a cylindrical structure, thereby making the area of ​​the pole hole through which the second output portion and the first output portion pass smaller.

[0018] In some embodiments, the battery further includes a connector, wherein the end of the first terminal located outside the cover and the end of the second terminal located outside the cover are both connected to the connector, thereby making the connection between the first terminal and the second terminal more stable.

[0019] In some embodiments, the connector includes a first mounting hole through which the first pole and the second pole pass, so that the first pole and the second pole are connected and fixed by the connector, thereby making the connection between the first pole and the second pole more stable.

[0020] In some embodiments, the first mounting hole is provided with an internal thread, and both the first pole post and the second pole post are provided with external threads, so that the first pole post and the second pole post are screwed and fixed in the first mounting hole, thereby facilitating the connection between the first pole post and the second pole post.

[0021] In some embodiments, the connector passes through the first pole and the second pole, thereby facilitating the connection between the first pole and the second pole.

[0022] In some embodiments, the connector includes:

[0023] A through-feed member, wherein the through-feed member passes through the first pole post and the second pole post, and one end of the through-feed member is provided with a limiting part, the limiting part being located on the side of the first pole post opposite to the second pole post; and,

[0024] A locking component is installed on the side of the second pole away from the first pole, so that the first pole is fixed between the limiting part and the locking component away from the second pole, thereby facilitating the connection between the first pole and the second pole.

[0025] In some embodiments, the hole wall of the electrode post is sealed to the electrode post with sealant, thereby improving the sealing effect at the electrode post hole.

[0026] In some embodiments, the base has at least two mounting slots, and each mounting slot contains the core package;

[0027] The cover is a one-piece molded part, and the cover is connected to the base to cover at least two of the mounting slots, thereby improving the sealing effect of the cover.

[0028] In some embodiments, the battery is a sodium-ion battery, which allows the battery to have advantages such as resistance to high and low temperatures and good rate performance; and / or,

[0029] The battery is a start-stop battery, which gives it the advantage of good sealing performance.

[0030] Secondly, embodiments of this utility model also provide a vehicle that includes the aforementioned battery, thereby possessing all the technical effects of the aforementioned battery.

[0031] The beneficial effects of the embodiments of this utility model are as follows:

[0032] By having the first and second poles share a single pole hole, fewer pole holes can be set on the cover, thereby improving the technical problem of poor sealing at the poles by reducing the number of openings in the cover. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0034] Figure 1 This is a schematic diagram of the first structure of the battery provided in an embodiment of this utility model.

[0035] Figure 2 yes Figure 1 A schematic diagram of the battery from another perspective.

[0036] Figure 3 yes Figure 2 The battery shown is a cross-sectional view along the AA direction.

[0037] Figure 4 yes Figure 1 The diagram shows the structure of the battery after the cover has been removed.

[0038] Figure 5 This is a schematic diagram of a second structure of the battery provided in an embodiment of this utility model.

[0039] Figure 6 yes Figure 5 A schematic diagram of the battery from another perspective.

[0040] Figure 7 yes Figure 6 The battery shown is a cross-sectional view along the BB direction.

[0041] Figure 8 yes Figure 6 The diagram shows the structure of the battery after the cover has been removed.

[0042] Figure 9 yes Figure 8 A magnified view of the area at point X.

[0043] Figure 10 This is a schematic diagram of the third structure of the battery provided in an embodiment of this utility model.

[0044] Figure 11 yes Figure 10 A schematic diagram of the battery from another perspective.

[0045] Figure 12 yes Figure 11 The battery shown is a cross-sectional view along the CC direction.

[0046] Figure 13yes Figure 10 The diagram shows the structure of the battery after the cover has been removed.

[0047] Figure 14 yes Figure 13 A magnified view of the area at point Y.

[0048] Figure 15 yes Figure 1 Another schematic diagram of the battery structure shown.

[0049] Figure 16 yes Figure 1 The diagram shows the structure of the battery cover.

[0050] Explanation of reference numerals in the attached figures:

[0051] 100. Cover; 11. Pole post hole; 12. Injection hole; 13. Explosion-proof structure; 14. Second side wall; 15. Separating rib; 151. Slot; 16. Top wall; 161. Covering area;

[0052] 200. Base; 21. Bottom wall; 22. First side wall; 221. Mounting slot; 23. Partition;

[0053] 300, core package;

[0054] 400, pole post; 41, first pole post; 411, first connecting part; 412, first output part; 42, second pole post; 421, second connecting part; 422, second output part; 43, clearance groove;

[0055] 500, Second outer shell;

[0056] 600. Connector; 61. First mounting hole; 62. Through-hole; 621. Limiting part; 63. Locking part; 64. First signal acquisition component; 65. Second signal acquisition component;

[0057] 700, BMS components;

[0058] 800, First outer shell. Detailed Implementation

[0059] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0060] This application provides a battery and a vehicle that can improve the technical problem of poor sealing effect at the terminal hole.

[0061] Below, we will first give an overall introduction to batteries.

[0062] Batteries can be used in vehicles, which may include new energy vehicles and fuel vehicles, etc., and this application does not limit them.

[0063] The battery can be a start-stop battery, which enables the vehicle to quickly start the engine during frequent start-stop operations and provides stable power to the vehicle's electrical equipment. The battery can also be other types of batteries, and this application does not limit the specific types.

[0064] The battery can be a sodium-ion battery.

[0065] Understandably, using lead-acid batteries as start-stop batteries would result in short battery life, poor resistance to over-discharge, heavy weight, and inability to discharge at low temperatures. Similarly, using lithium-ion batteries would lead to poor resistance to high and low temperatures and over-discharge, thus making them unable to withstand the high temperatures in the engine compartment of a gasoline-powered vehicle.

[0066] In contrast, the sodium-ion battery of this application embodiment has the advantage of being resistant to high temperatures, resulting in a low impact of high temperatures on the battery's lifespan, thus allowing the start-stop battery to adapt to the operating environment of gasoline vehicles. Simultaneously, the sodium-ion battery also has the advantage of good rate performance, enabling the start-stop battery to maintain a high retention rate at low temperatures, ensuring normal vehicle operation in cold environments.

[0067] Optionally, the battery can also be a lead-acid battery or a lithium-ion battery, etc., and this application embodiment does not limit it.

[0068] In related technologies, a battery includes a casing, a cell pack, and terminals. The cell pack is disposed within the casing, and the terminals are connected to the cell pack. The casing has terminal holes for the terminals to pass through, and the number of terminal holes is the same as the number of terminals, so that each terminal passes through one terminal hole. Therefore, the casing needs to have a large number of terminal holes for the terminals to pass through, which leads to poor sealing at the terminal holes.

[0069] Please refer to Figure 1 , Figure 2 and Figure 3 Based on this, this application provides a battery including a base 200, a cover 100, at least two core packs 300 and multiple terminals 400.

[0070] The base 200 is provided with a mounting groove 221. The core package 300 is disposed in the mounting groove 221. Each core package 300 is connected to a pole post 400. The cover 100 is connected to the base 200 to cover the mounting groove 221. The cover 100 is provided with multiple pole post holes 11, and the pole posts 400 pass through the pole post holes 11.

[0071] Among them, at least two pole posts 400 include a first pole post 41 and a second pole post 42, and the first pole post 41 and the second pole post 42 are inserted through the same pole post hole 11.

[0072] Therefore, by having the first pole post 41 and the second pole post 42 share a pole post hole 11, fewer pole post holes 11 can be provided on the cover 100. This reduces the number of openings in the cover 100 and improves the poor sealing effect at the pole post hole 11.

[0073] The technical solutions of the embodiments of this application will now be described in conjunction with the first pole post 41 and the second pole post 42.

[0074] The first terminal 41 and the second terminal 42 can be electrically connected.

[0075] For example, the first pole 41 and the second pole 42 can be connected to different core packages 300, thereby realizing the series, parallel or mixed connection of two adjacent core packages 300 through the connection of the first pole 41 and the second pole 42.

[0076] In some embodiments, one of the first terminal 41 and the second terminal 42 is a positive terminal 400, and the other is a negative terminal 400. Furthermore, by connecting the first terminal 41 and the second terminal 42, series connection between two adjacent core packages 300 can be achieved.

[0077] In some implementations, the first pole 41 and the second pole 42 abut against each other to achieve an electrical connection.

[0078] For example, the end of the first terminal 41 located outside the cover 100 and the end of the second terminal 42 located outside the cover 100 abut each other. This allows for a shorter power transmission path between the first terminal 41 and the second terminal 42.

[0079] Please continue to refer to this. Figure 4 In some embodiments, the first pole post 41 includes a first connecting part 411 and a first output part 412. The first connecting part 411 is connected to the core package 300, and the first output part 412 is connected to the end of the first connecting part 411 near the second pole post 42. The first output part 412 passes through the pole post hole 11.

[0080] It is understandable that, compared to the first output part 412 being connected to the middle of the first connecting part 411, the embodiments of this application can make the first output part 412 closer to the second pole post 42, thereby making the pole post hole 11 through which the first output part 412 and the second pole post 42 pass smaller, so as to improve the sealing effect of the cover 100 by reducing the opening area of ​​the cover 100.

[0081] The first connecting portion 411 can extend along the width direction of the corresponding core package 300 or along the length direction of the corresponding core package 300. Furthermore, the first pole post 41 can increase its connection area with the core package 300 through the first connecting portion 411; however, this embodiment does not limit this.

[0082] In some embodiments, the second pole post 42 includes a second connecting portion 421 and a second output portion 422. The second connecting portion 421 is connected to the core package 300, and the second output portion 422 is connected to the end of the second connecting portion 421 near the first pole post 41. The second output portion 422 passes through the pole post hole 11.

[0083] It is understandable that, compared to the second output part 422 being connected to the middle of the second connection part 421, the embodiments of this application can make the second output part 422 closer to the first pole post 41, so that the pole post hole 11 through which the second output part 422 and the first pole post 41 pass can be made smaller, thereby improving the sealing effect of the cover 100 by reducing the opening area of ​​the cover 100.

[0084] The second connecting part 421 can extend along the width direction of the corresponding core package 300 or along the length direction of the corresponding core package 300. Thus, the second pole post 42 can increase the connection area with the core package 300 through the second connecting part 421. This application embodiment does not limit this.

[0085] In some embodiments, the second output 422 and the first output 412 abut against each other.

[0086] Furthermore, on the one hand, since the second output portion 422 and the first output portion 412 are spaced apart compared to the present embodiment, the distance between the second output portion 422 and the first output portion 412 can be smaller, thereby making the corresponding pole hole 11 of the second output portion 422 and the first output portion 412 smaller, so as to improve the sealing effect of the cover 100 by reducing the opening area of ​​the cover 100. On the other hand, the abutment between the second output portion 422 and the first output portion 412 can also realize the electrical connection between the first pole 41 and the second pole 42.

[0087] In some embodiments, the end of the first output portion 412 away from the first connecting portion 411 and the end of the second output portion 422 away from the second connecting portion 421 are both semi-cylindrical, so that the end of the first output portion 412 away from the first connecting portion 411 and the end of the second output portion 422 away from the second connecting portion 421 can be spliced ​​together to form a cylindrical structure.

[0088] Understandably, if both the second output section 422 and the first output section 412 are cylindrical structures, on the one hand, the corresponding pole hole 11 of the second output section 422 and the first output section 412 needs to be made into an oblong hole structure, which results in the pole hole 11 having an excessively large area and a large gap between the inner wall of the oblong hole and the pole 400, which is not conducive to the sealing at the pole hole 11; on the other hand, even if the second output section 422 and the first output section 412 abut against each other, the contact area between the second output section 422 and the first output section 412 will be too small, which is not conducive to the transmission of electrical energy between the second output section 422 and the first output section 412.

[0089] Therefore, in this embodiment of the application, the end of the first output part 412 away from the first connecting part 411 and the end of the second output part 422 away from the second connecting part 421 can be spliced ​​to form a cylindrical structure, which has the advantages of good sealing effect and good flow capacity.

[0090] In some embodiments, the pole hole 11 through which the first pole 41 and the second pole 42 pass is a circular hole. Furthermore, compared to the structure of an oblong or rectangular hole, a circular hole not only has the advantage of being easy to process, but also has the advantage of having a small area, thereby improving the sealing effect of the cover 100 by reducing the opening area of ​​the cover 100.

[0091] Correspondingly, the cylindrical structure formed by splicing the first output part 412 and the second output part 422 passes through the circular hole.

[0092] Of course, in some other embodiments, the pole hole 11 through which the first pole 41 and the second pole 42 pass can also be a square hole, and this application embodiment does not limit this.

[0093] Please continue to refer to this. Figure 5, Figure 6 and Figure 7 In some embodiments, the battery also includes a connector 600, wherein one end of the first terminal 41 located outside the cover 100 and one end of the second terminal 42 located outside the cover 100 are both connected to the connector 600.

[0094] It should be noted that the connector 600 can be used to realize the physical connection between the first pole 41 and the second pole 42, or it can be used to realize the electrical connection between the first pole 41 and the second pole 42. This application embodiment does not limit this.

[0095] For example, when the first pole 41 and the second pole 42 are arranged alternately, the first pole 41 and the second pole 42 can both be electrically connected to the connector 600, thereby realizing the conduction of the first pole 41 and the second pole 42.

[0096] Alternatively, when the first pole 41 and the second pole 42 abut against each other, the connector 600 can be used to realize the physical connection between the first pole 41 and the second pole 42, or it can be used to realize the electrical connection between the first pole 41 and the second pole 42. This application embodiment does not limit this.

[0097] Please continue to refer to this. Figure 8 and Figure 9 In some embodiments, the connector 600 includes a first mounting hole 61, through which the first pole post 41 and the second pole post 42 pass, so that the first pole post 41 and the second pole post 42 are connected and fixed by the connector 600. Therefore, it can also be simply understood that the connector 600 is sleeved on the outer periphery of the first pole post 41 and the second pole post 42, so that the portions of the first pole post 41 and the second pole post 42 within the first mounting hole 61 can fit tightly, and that the connection between the first pole post 41 and the second pole post 42 can be more stable and reliable.

[0098] In some embodiments, the first mounting hole 61 is provided with an internal thread, and the first pole post 41 and the second pole post 42 are both provided with external threads, so that the first pole post 41 and the second pole post 42 are both screwed and fixed in the first mounting hole 61.

[0099] Therefore, it can also be understood that a nut is directly screwed onto the first pole 41 and the second pole 42 as a connector 600 to achieve the connection between the first pole 41 and the second pole 42.

[0100] For example, the end of the first output part 412 away from the first connecting part 411 and the end of the second output part 422 away from the second connecting part 421 can be spliced ​​to form a cylindrical structure. The outer circumferential surface of the cylindrical structure is provided with external threads, so that the connector 600 can be threaded onto the cylindrical structure to lock and fix the first output part 412 and the second output part 422.

[0101] In some embodiments, the battery further includes a first signal acquisition component 64, which is sleeved on the first terminal 41 and the second terminal 42, and is disposed between the connector 600 and the cover 100.

[0102] For example, the battery may also include a BMS (Battery Management System) component 700, which is electrically connected to a first signal acquisition component 64 to acquire signals such as voltage and temperature at the terminal 400 through the first signal acquisition component 64.

[0103] The first signal acquisition component 64 can be a metal ring.

[0104] In some embodiments, a first gasket may also be provided between the connector 600 and the cover 100.

[0105] For example, a first gasket may be provided between the connector 600 and the first signal acquisition component 64 to prevent the connector 600 from crushing the first signal acquisition component 64.

[0106] Optionally, a first gasket may be provided between the first signal acquisition component 64 and the cover 100, but this embodiment does not limit this.

[0107] Please continue to refer to this. Figure 10 , Figure 11 and Figure 12 In some embodiments, the connector 600 passes through the first pole post 41 and the second pole post 42, thereby making the connection between the first pole post 41 and the second pole post 42 more stable and reliable.

[0108] Please continue to refer to this. Figure 13 and Figure 14 For example, the connector 600 includes a through member 62 and a locking member 63. The through member 62 passes through the first pole post 41 and the second pole post 42, and one end of the through member 62 is provided with a limiting part 621, which is located on the side of the first pole post 41 opposite to the second pole post 42. The locking member 63 is installed on the side of the second pole post 42 opposite to the first pole post 41, so that the first pole post 41 is fixed between the limiting part 621 and the locking member 63.

[0109] In the actual assembly process, the first pole piece 62 is passed through the first pole piece 41 and the second pole piece 42, and then the locking piece 63 is installed on the passing piece 62 to complete the connection between the first pole piece 41 and the second pole piece 42, so that the first pole piece 41 and the second pole piece 42 have the advantage of simple connection.

[0110] For example, the insert 62 can be a bolt, and the locking part 63 can be a nut. After the bolt passes through the first pole post 41 and the second pole post 42, a nut can be screwed on.

[0111] In some embodiments, the battery further includes a second signal acquisition component 65, which is sleeved on the through member 62 and located between the limiting part 621 and the first pole post 41.

[0112] Furthermore, the BMS component 700 can be electrically connected to the second signal acquisition component 65 to acquire signals such as voltage and temperature at the first pole 41 through the second signal acquisition component 65.

[0113] The second signal acquisition component 65 can be a metal ring.

[0114] In some embodiments, the battery further includes a third signal acquisition component. The third signal acquisition component is sleeved on the through member 62 and is located between the locking member 63 and the second terminal post 42.

[0115] Furthermore, the BMS component 700 can be electrically connected to the third signal acquisition component to acquire signals such as voltage and temperature at the second pole 42 through the third signal acquisition component.

[0116] The third signal acquisition component can be a metal ring.

[0117] In some embodiments, a second gasket may be provided between the limiting part 621 and the first pole post 41.

[0118] In some embodiments, a third gasket may also be provided between the insert 62 and the second pole post 42.

[0119] The above is a description of how the first pole post 41 and the second pole post 42 are connected by the connector 600 in the embodiments of this application.

[0120] It should also be noted that the first pole 41 and the second pole 42 can also be welded together. For example, the end of the first output part 412 away from the first connecting part 411 and the end of the second output part 422 away from the second connecting part 421 can be welded together. This application embodiment does not limit this.

[0121] In some embodiments, the wall of the electrode post hole 11 is sealed to the electrode post 400 with sealant. This improves the sealing effect at the electrode post hole 11.

[0122] Sealants may include adhesives, which have a temperature resistance greater than or equal to 120°C.

[0123] The technical solutions of the embodiments of this application will now be described in conjunction with the base 200.

[0124] The mounting slot 221 can be a square slot or other shapes; this application embodiment does not limit this.

[0125] The dimensions of different mounting slots 221 may be the same or different, and this application embodiment does not limit this.

[0126] In some embodiments, the core pack 300 is exposed within the mounting groove 221, thereby eliminating the need for a protective structure (such as a steel shell) to enclose the core pack 300 within the mounting groove 221. This allows more space within the mounting groove 221 to be used for mounting the core pack 300, thereby increasing the energy density of the battery and ultimately improving the technical problem of low battery energy density.

[0127] It should be noted that the core package 300 can be a wound core. Optionally, the core package 300 can also be a stacked core package 300, and this embodiment does not limit this.

[0128] In some embodiments, the base 200 can be a plastic part and form part of the battery casing. Furthermore, the base 200 can be integrally molded by injection molding, and the battery can be installed outside the base 200 without the need for other parts. Thus, with a fixed battery volume, the volume of the base 200 can be increased to increase the volume of the core pack 300 inside the base 200, ultimately increasing the energy density of the battery.

[0129] The base 200 can be an insulating plastic part, so that no other insulating parts need to be set between the base 200 and the terminal post 400 and the core pack 300, so that the battery has the advantage of easy assembly.

[0130] Of course, in some other embodiments, the base 200 can also be a metal part. For example, the base 200 can be integrally formed by stamping and die casting, and this application embodiment does not limit this.

[0131] Please continue to refer to this. Figure 15 It is understandable that when the base 200 is a metal part, the battery may also include a first housing 800, which is a plastic part, and the base 200 is disposed inside the first housing 800, thereby achieving insulation between the base 200 and the external device.

[0132] In some embodiments, the base 200 has a partition 23 inside, which divides at least two mounting slots 221 inside the base 200.

[0133] Therefore, compared to installing different core packs 300 through multiple independent steel shells inside the base 200, in this embodiment, at least two mounting slots 221 are directly spaced out inside the base 200 by a partition 23, so that the partition 23 can be reused as a common sidewall of two adjacent mounting slots 221, thereby improving the energy density of the battery.

[0134] For example, the base 200 may include a bottom wall 21 and a first side wall 22. The first side wall 22 is connected to the outer periphery of the bottom wall 21, and the partition 23 is located on the inner periphery of the first side wall 22. Furthermore, at least two mounting slots 221 can be spaced out on the inner periphery of the first side wall 22 by the partition 23.

[0135] In some embodiments, a clearance groove 43 is provided between the end of the second output portion 422 near the first connecting portion 411 and the end of the first output portion 412 near the connecting portion, and the partition plate 23 is disposed in the clearance groove 43.

[0136] Correspondingly, the end of the second output section 422 away from the first connecting section 411 and the end of the first output section 412 away from the connecting section are connected and abut against each other.

[0137] In some embodiments, the battery further includes a second housing 500. The second housing 500 covers the outer surface of the cover 100. A connector 600 is located between the second housing 500 and the cover 100, and at least two adjacent terminals 400 are connected to the connector 600. Thus, the connector 600 enables connection between different core packages 300, while the second housing 500 provides effective protection for the connector 600 and the terminals 400.

[0138] In some embodiments, two terminals 400 are disposed through the second housing 500, such that one terminal 400 disposed through the second housing 500 serves as the overall positive terminal of the battery, and the other terminal 400 disposed through the second housing 500 serves as the overall negative terminal of the battery.

[0139] Optionally, the battery may also include two terminals, each of which passes through the second housing 500 and is connected to the terminal post 400. Thus, one terminal serves as the overall positive terminal of the battery, and the other terminal serves as the overall negative terminal of the battery. This application embodiment does not limit this.

[0140] In some implementations, the BMS component 700 may be disposed between the second housing 500 and the cover 100.

[0141] Therefore, one possible assembly method for the start-stop battery is:

[0142] First, insert the core packs 300 into their corresponding mounting slots 221; then, weld and fix the pole posts 400 to the corresponding pole tabs of the core packs 300; next, install the cover 100 onto the base 200 so that the pole posts 400 pass through the cover 100; then, install the connectors 600 and BMS components 700, etc., on the outer surface of the cover 100; finally, install the second outer shell 500.

[0143] The first outer shell 800 and the second outer shell 500 can be integrally formed or separately formed; this application embodiment does not limit this.

[0144] The technical solutions of the embodiments of this application will be further described below in conjunction with the cover 100.

[0145] Please combine them together Figure 15 and Figure 16 In some embodiments, the base 200 has at least two mounting slots 221, and each mounting slot 221 has a core package 300. The cover 100 is a one-piece molded part, and the cover 100 is connected to the base 200 to cover the at least two mounting slots 221.

[0146] Furthermore, compared to having one cover 100 for each mounting slot 221, the number of cover 100s can be reduced. This reduces the gaps between cover 100s and also reduces the number of battery cover 100 assembly steps.

[0147] For example, the cover 100 covers the mounting groove 221 corresponding to the first pole post 41 and the mounting groove 221 corresponding to the second pole post 42. Furthermore, the pole post hole 11 on the cover 100 can simultaneously face the mounting groove 221 corresponding to the first pole post 41 and the mounting groove 221 corresponding to the second pole post 42, so that the first pole post 41 and the second pole post 42 can pass through.

[0148] In some embodiments, the cover 100 is a plastic part. Furthermore, the cover 100 can be integrally molded by injection molding.

[0149] The cover 100 can be an insulating plastic part, so that no other insulating parts need to be set between the cover 100 and the terminal post 400 and the core pack 300, so that the start-stop battery has the advantage of easy assembly.

[0150] Of course, in some other embodiments, the cover 100 can also be a metal part. For example, the cover 100 can be integrally formed by stamping and die casting, and this application embodiment does not limit this.

[0151] In some embodiments, the cover 100 has at least two covering areas 161. Each covering area 161 covers one of the mounting slots 221.

[0152] In some embodiments, each cover area 161 is provided with an injection hole 12 for injecting electrolyte into the battery.

[0153] In some embodiments, the battery further includes a second seal that is mounted on the injection port 12 for sealing the injection port 12.

[0154] The second sealing element may include sealing pins, etc., but this application embodiment does not limit this.

[0155] In some embodiments, each covering area 161 is also provided with an explosion-proof structure 13. Furthermore, in the event of thermal runaway within each mounting slot 221, the corresponding explosion-proof structure 13 can burst open to release pressure.

[0156] The explosion-proof structure 13 may include a pressure relief port for installing an explosion-proof valve. Furthermore, in the event of thermal runaway within each mounting slot 221, the corresponding explosion-proof valve can burst open to relieve pressure.

[0157] Optionally, the explosion-proof structure 13 may include explosion-proof grooves. Thus, in the event of thermal runaway within each mounting slot 221, the corresponding explosion-proof grooves can burst open to release pressure.

[0158] In some embodiments, multiple covering areas 161 are arranged along the length of the cover 100. Furthermore, multiple mounting slots 221 on the base 200 may also be arranged along the length of the cover 100.

[0159] For example, there can be four covering areas 161, which are arranged along the length of the cover 100.

[0160] In some embodiments, the partition 23 is snapped into and fixed to the cover 100. This makes the installation of the cover 100 more stable and reliable.

[0161] For example, the cover 100 is provided with a slot 151, and slots 151 are provided between adjacent cover areas 161, with the partition 23 snapping into the slot 151. Furthermore, the slot 151 can be integrally formed directly on the cover 100, so that the start-stop battery has the advantage of being easy to manufacture.

[0162] For example, at least one pair of partition ribs 15 are provided between two adjacent covering areas 161, and a slot 151 is formed between each pair of partition ribs 15.

[0163] Furthermore, the partition rib 15 can also serve as a reinforcing rib of the cover 100 to improve the strength of the cover 100, thereby improving the reliability and stability of the starting battery.

[0164] In some embodiments, the cover 100 includes a top wall 16 and a second side wall 14. The top wall 16 has a plurality of covering areas 161. The second side wall 14 is connected to the outer periphery of the top wall 16 and is fitted onto the outer surface of the base 200.

[0165] Furthermore, the second sidewall 14 can increase the contact area between the cover 100 and the base 200, thereby improving the stability of the cover 100 installation and the sealing effect between the cover 100 and the base 200.

[0166] In some embodiments, the peripheral edge of the cover 100 is sealed to the base 200 with a sealant. This improves the sealing effect between the cover 100 and the base 200.

[0167] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A battery, characterized in that, The battery includes: A base (200) is provided with a mounting groove (221); At least two core packages (300) are disposed within the mounting slot (221); Multiple pole posts (400), each of the core packages (300) is connected to one of the pole posts (400); and, A cover (100) is connected to the base (200) to cover the mounting groove (221). The cover (100) is provided with a plurality of pole hole (11), and the pole (400) passes through the pole hole (11). Among them, at least two of the pole posts (400) include a first pole post (41) and a second pole post (42), and the first pole post (41) and the second pole post (42) are disposed in the same pole post hole (11).

2. The battery according to claim 1, characterized in that, The pole hole (11) through which the first pole (41) and the second pole (42) pass is a round hole.

3. The battery according to claim 1, characterized in that, The first terminal (41) and the second terminal (42) are electrically connected.

4. The battery according to claim 3, characterized in that, One of the first pole (41) and the second pole (42) is a positive pole (400), and the other is a negative pole (400).

5. The battery according to claim 3, characterized in that, The first pole post (41) is located at one end outside the cover (100) and the second pole post (42) is located at one end outside the cover (100).

6. The battery according to claim 5, characterized in that, The first pole post (41) includes a first connecting part (411) and a first output part (412). The first connecting part (411) is connected to the core package (300), and the first output part (412) is connected to one end of the first connecting part (411) near the second pole post (42). The first output part (412) passes through the pole post hole (11).

7. The battery according to claim 6, characterized in that, The second pole piece (42) includes a second connecting part (421) and a second output part (422). The second connecting part (421) is connected to the core package (300). The second output part (422) is connected to one end of the second connecting part (421) near the first pole piece (41). The second output part (422) passes through the pole piece hole (11). The second output part (422) and the first output part (412) abut against each other.

8. The battery according to claim 7, characterized in that, The end of the first output part (412) away from the first connecting part (411) and the end of the second output part (422) away from the second connecting part (421) are both semi-cylindrical, so that the end of the first output part (412) away from the first connecting part (411) and the end of the second output part (422) away from the second connecting part (421) can be spliced ​​together to form a cylindrical structure.

9. The battery according to any one of claims 1 to 8, characterized in that, The battery also includes a connector (600), wherein one end of the first terminal (41) located outside the cover (100) and one end of the second terminal (42) located outside the cover (100) are both connected to the connector (600).

10. The battery according to claim 9, characterized in that, The connector (600) includes a first mounting hole (61), through which the first pole post (41) and the second pole post (42) pass, so that the first pole post (41) and the second pole post (42) are connected and fixed by the connector (600).

11. The battery according to claim 10, characterized in that, The first mounting hole (61) is provided with an internal thread, and the first pole post (41) and the second pole post (42) are both provided with external threads, so that the first pole post (41) and the second pole post (42) are both screwed and fixed in the first mounting hole (61).

12. The battery according to claim 9, characterized in that, The connector (600) passes through the first pole post (41) and the second pole post (42).

13. The battery according to claim 12, characterized in that, The connector (600) includes: A through-feed member (62) is provided, which passes through the first pole post (41) and the second pole post (42). One end of the through-feed member (62) is provided with a limiting part (621), which is located on the side of the first pole post (41) away from the second pole post (42); and, A locking member (63) is installed on the side of the second pole post (42) away from the first pole post (41), so that the first pole post (41) away from the second pole post (42) is fixed between the limiting part (621) and the locking member (63).

14. The battery according to any one of claims 1 to 8, characterized in that, The hole wall of the pole post hole (11) is sealed with the pole post (400) by sealant.

15. The battery according to any one of claims 1 to 8, characterized in that, The base (200) is provided with at least two mounting slots (221), and each mounting slot (221) is provided with the core package (300); The cover (100) is an integrally molded part, and the cover (100) is connected to the base (200) to cover at least two of the mounting slots (221).

16. The battery according to any one of claims 1 to 8, characterized in that, The battery is a sodium-ion battery; and / or, The battery in question is a start-stop battery.

17. A vehicle, characterized in that, Includes the battery as described in any one of claims 1 to 16.

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