Battery, battery pack and vehicle

Abstract

The utility model provides a battery, a battery pack and a vehicle. The battery comprises a shell assembly, a battery cell, a middle supporting shell and an inner supporting structure, the inner supporting structure is at least arranged on one side surface of the battery cell; the middle supporting shell surrounds the battery cell and the inner supporting structure; the shell assembly is provided with an explosion-proof opening communicated with the outside and surrounds the outer sides of the battery core, the inner supporting structure and the middle supporting shell; wherein the inner supporting structure is supported between the battery cell and the middle supporting shell, so that the battery cell and the middle supporting shell are separated from each other to form a channel communicated with the explosion-proof opening. Thus, a gas and liquid discharging channel is arranged between the battery and the outermost shell assembly, when the internal pressure of the battery is too large, the channel not only provides a temporary gas and liquid bearing space, but also provides collection guide for gas and liquid, so that the gas and the liquid are rapidly collected and discharged through the explosion-proof opening, and directional eruption is realized; the problem that in the prior art, when a battery is in thermal runaway, the gas and liquid discharging efficiency is low, and consequently the pressure relief efficiency of an anti-explosion valve is poor is solved.

Description

Technical Field

[0001] The present application relates to the field of battery production technology, and in particular to a battery, a battery pack and a vehicle. Background Art

[0002] The application of power batteries in the vehicle industry has received more and more attention, among which battery safety performance is one of the important considerations.

[0003] In the prior art, conventional battery structural designs usually add explosion-proof valves to the battery cover to improve battery safety and reliability. When the battery is in an abnormal state of thermal runaway, the explosion-proof valves are used to release pressure. However, the conventional structural design of batteries has low gas and liquid discharge efficiency. When the internal pressure of the battery is too high and needs to be rapidly released through the explosion-proof valve, there will be certain safety hazards. Utility Model Content

[0004] In view of this, the present application provides a battery, a battery pack and a vehicle to solve the problem of poor pressure relief efficiency of an explosion-proof valve caused by low gas and liquid discharge efficiency when the battery is in thermal runaway in the prior art.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A battery comprising:

[0007] Battery cells;

[0008] An internal support structure exists on at least one side of the battery core;

[0009] A middle support shell, surrounding the battery core and the inner support structure;

[0010] A shell assembly having an explosion-proof opening communicating with the outside and surrounding the outer sides of the battery core, the inner support structure and the middle support shell;

[0011] Wherein, the inner support structure is supported between the battery core and the middle support shell, so that the battery core and the middle support shell are spaced apart from each other to form a channel communicating with the explosion-proof opening.

[0012] Optionally, the inner support structure includes an elastic member capable of elastic deformation in a preset expansion direction of the battery core, and the channel is arranged on a preset expansion side of the battery core.

[0013] Optionally, in a first direction of the battery core, a first channel is provided between at least one side of the battery core and the middle support shell;

[0014] and / or, in a second direction of the battery core, a second channel is provided between at least one side of the battery core and the middle support shell;

[0015] and / or, in the third direction of the battery core, a third channel is provided between at least one side of the battery core and the housing assembly;

[0016] The first direction, the second direction and the third direction are in a spatial rectangular coordinate system relationship.

[0017] Optionally, the inner support structure includes a support plate and a limiter;

[0018] In the second direction, the support plate is located at two opposite sides of the battery core, and the limiting member is supported between the support plate and the battery core along the second direction to form the second channel between the battery core and the support plate;

[0019] In the first direction, the edge of the support plate protrudes from the edge of the battery cell, and the edge of the support plate abuts against the middle support shell along the first direction to form the first channel between the battery cell and the middle support shell.

[0020] Optional,

[0021] In the first direction, a notch is provided on the edge of the support plate in contact with the middle support shell;

[0022] And / or, the support plate is provided with a through hole;

[0023] And / or, the limiting member includes a plurality of columns dispersedly distributed on the supporting plate.

[0024] Optionally, the middle supporting shell includes two half shells spliced ​​opposite to each other in the second direction, and the ends of the half shells in the third direction are provided with openings, and the third channel is formed between the openings and the outer shell assembly.

[0025] Optionally, one of the two half shells spliced ​​opposite to each other is provided with a convex buckle, and the other is provided with a concave buckle that matches and engages with the convex buckle.

[0026] Optionally, the housing assembly includes:

[0027] A shell body, surrounding two sides of the middle support shell in the first direction and two sides in the second direction;

[0028] A cover plate, located at an end of the housing body to cover the opening;

[0029] There is a gap between the cover plate and the cell body of the cell in the third direction, and the two half shells constituting the middle support shell are inserted into the gap and spliced ​​in opposite directions.

[0030] A battery pack comprises a plurality of batteries described in any one of the above items.

[0031] A vehicle comprises a vehicle body and the above-mentioned battery pack.

[0032] The battery provided in the present application includes an outer shell assembly, a battery cell, a middle support shell, and an inner support structure; the inner support structure exists on at least one side of the battery cell; the middle support shell surrounds the battery cell and the inner support structure; the outer shell assembly has an explosion-proof port connected to the outside, and surrounds the battery cell, the inner support structure, and the outer side of the middle support shell; wherein the inner support structure is supported between the battery cell and the middle support shell, so that the battery cell and the middle support shell are spaced apart from each other to form a channel connected to the explosion-proof port. Such an arrangement avoids the problem that the battery cell and the outer shell in conventional batteries are tightly matched, resulting in the gas and liquid only being able to be squeezed and discharged to the explosion-proof valve through a very small gap in the battery during thermal runaway. In the present application, the explosion-proof port is used to relieve pressure when the battery has thermal runaway, and there is a channel for exhaust liquid between the battery and the outer shell component located at the outermost layer. When the internal pressure of the battery is too high, the channel not only provides a temporary gas and liquid carrying space, but also provides a collection guide for the gas and liquid, so that the gas and liquid can quickly gather and be discharged through the explosion-proof port, realizing directional eruption, improving gas discharge efficiency, and solving the problem of poor pressure relief efficiency of the explosion-proof valve caused by low gas and liquid discharge efficiency when the battery has thermal runaway in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of the assembly structure of a battery provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of the structure of a battery without a housing body provided in an embodiment of the present application;

[0036] Figure 3 An exploded diagram of the structure of a battery provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of an internal support structure provided in an embodiment of the present application;

[0038] Figure 5 A top view of the battery cell, inner support structure, and middle support shell provided in an embodiment of the present application;

[0039] Figure 6A partial schematic diagram of a first angle of a cover plate of a battery provided in an embodiment of the present application;

[0040] Figure 7 A partial schematic diagram of a second angle of a cover plate of a battery provided in an embodiment of the present application.

[0041] exist Figure 1-Figure 7 middle:

[0042] 1. Battery cell; 2. Shell assembly; 3. Middle support shell; 4. Internal support structure; 5. First channel; 6. Second channel; 7. Third channel; 8. Gap;

[0043] 11. Battery body; 12. Tab;

[0044] 21. Explosion-proof port; 22. Shell body; 23. Cover plate;

[0045] 31. half shell; 32. convex buckle; 33. concave buckle; 34. opening;

[0046] 41. Support plate; 42. Limiting member; 43. Elastic member. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] like Figure 1-Figure 7 As shown, an embodiment of the present application provides a battery, comprising an outer shell assembly 2, a battery cell 1, a middle support shell 3, and an inner support structure 4; the inner support structure 4 is present on at least one side of the battery cell 1; the middle support shell 3 surrounds the battery cell 1 and the inner support structure 4; the outer shell assembly 2 has an explosion-proof opening 21 connected to the outside, and surrounds the battery cell 1, the inner support structure 4 and the outer side of the middle support shell 3; both ends of the battery cell 1 are partially electrically connected to the outer shell assembly 2; the inner support structure 4 is arranged between the battery cell 1 and the middle support shell 3, so that at least a part of the battery cell 1 is spaced apart from the middle support shell 3 to form a channel connected to the explosion-proof opening 21. That is, there is a three-layer structure outside the battery cell 1, which is the inner support structure 4, the middle support shell 3, and the outer shell assembly 2 from the inside to the outside, and the inner support structure 4 and the middle support shell 3 are insulating structures; from the overall point of view, there is a reserved gap between the battery cell 1 and the outer shell assembly 2, and the reserved gaps are interconnected to form a channel. The shape of the channel is not limited, and is generally formed along the position or extension surface of the structural member, and can be flat with a certain coverage area. The explosion-proof port 21 is specifically installed with protection structures such as explosion-proof valves and safety valves.

[0049] Such an arrangement avoids the problem that the battery cell 1 and the outer shell in a conventional battery are tightly matched, resulting in the gas and liquid only being able to be squeezed and discharged to the explosion-proof valve through a very small gap in the battery during thermal runaway. In the present application, the explosion-proof port 21 is used to relieve pressure when the battery is thermally runaway, and there is a channel for exhaust liquid between the battery and the outer shell component 2 located at the outermost layer. When the internal pressure of the battery is too high, the channel not only provides a temporary gas and liquid carrying space, but also provides a collection guide for the gas and liquid, so that the gas and liquid can quickly gather and be discharged through the explosion-proof port 21, realizing directional eruption, improving gas discharge efficiency, and solving the problem of poor explosion-proof valve pressure relief efficiency caused by low gas and liquid discharge efficiency when the battery is thermally runaway in the prior art.

[0050] Moreover, due to the existence of the middle support shell 3, when the battery has thermal runaway, the middle support shell 3 plays a role of reinforcement and protection on the outside of the battery cell 1, preventing the battery cell 1 from expanding or the impact of gas and liquid discharge on the outer shell assembly 2, and during the cycle of the battery, the battery's shape retention ability is improved, and the battery's cycle performance is improved; at the same time, on the outside of the battery, the reserved space of the entire package can be saved, thereby making the battery pack easy to modularize and standardize, and improving assembly efficiency.

[0051] The following embodiments involve the description of directions, which are explained here in detail. Taking a rectangular battery as an example, it naturally forms a length, a width, and a thickness. In this application, the first direction is the width direction, the second direction is the thickness direction, and the third direction is the length direction, that is, the first direction, the second direction, and the third direction are in a spatial rectangular coordinate system relationship.

[0052] In a specific embodiment, the battery cell 1 includes a battery cell body 11 and a tab 12, and the housing assembly 2 includes a housing body 22 and a cover plate 23; the cover plate 23 is located at the end of the housing body 22, and the cover plate 23 is electrically connected to the tab 12 of the battery cell 1, and the cover plate assembly can be a conventional design in the prior art, such as including a pole, a bare aluminum sheet, an upper plastic, a lower plastic and other components, and the tab 12 of the battery cell 1 is electrically connected to the pole. That is, the housing body 22 and the cover plate 23 together form a sealing structure surrounded at the outermost side.

[0053] Generally speaking, the explosion-proof opening 21 can be set on the same side or the opposite side of the cover plate 23. Preferably, the explosion-proof opening 21 is set at the bottom of the shell body 22, away from the pole of the cover plate 23. The explosion-proof opening 21 is separated from the pole, which is safer.

[0054] In a preferred embodiment, the inner support structure 4 is composed of a plurality of separate structures, and the inner support structure 4 includes an elastic member 43 capable of elastic deformation at least in a preset expansion direction of the battery cell 1, and the channel exists at least on a preset expansion side of the battery cell 1, and the channel can accommodate the expansion amount of the battery cell 1. Generally speaking, the expansion side of the battery cell 1 is the side with the largest surface area, where expansion and deformation are most likely to occur first, and the preset expansion direction may be the thickness direction, that is, the second direction.

[0055] With such arrangement, the inner support structure 4 has the function of forming a channel under the normal state of the battery, and the channel reserved in the battery can also serve as a space to accommodate the expansion of the battery when the battery cyclically expands and deforms. At the same time, the elastic member 43 of the inner support structure 4 absorbs the space extrusion, and the middle support shell 3 is always in a relatively stable state, thereby ensuring the stability of the external shape of the battery.

[0056] In a preferred embodiment, in the first direction of the battery core 1, a first channel 5 is provided between at least one side of the battery core 1 and the middle support shell 3;

[0057] and / or, in the second direction of the battery core 1 , a second channel 6 is provided between at least one side of the battery core 1 and the middle support shell 3 ;

[0058] and / or, in the third direction of the battery cell 1 , a third channel 7 is provided between at least one side of the battery cell 1 and the housing assembly 2 ;

[0059] Among them, the first direction, the second direction and the third direction are in a spatial rectangular coordinate system relationship, and the first channel 5, the second channel 6 and the third channel 7 are all channels.

[0060] With such an arrangement, when channels are reserved on the six sides around the battery cell 1, the explosion-proof pressure relief efficiency reaches the best situation; in addition, except for the necessary electrical conduction connection with the outer shell assembly 2, the main body of the battery cell 1 has no direct contact with the six surfaces of the outer shell body 22, and no matter whether the outer shell body 22 is charged or neutral, the battery cell 1 can be prevented from contacting the outer shell body 22 under any extreme conditions, and the battery cell 1 is fixed and protected to a great extent, especially for batteries with a neutral outer shell body 22, there is a significant improvement. Compared with the traditional design in which there is only a thin insulating film between the battery cell 1 and the outer shell body 22 for isolation, the present application can avoid the corrosion problem of the battery cell 1 caused by the contact between the battery cell 1 and the outer shell body 22, and optimize the various performance indicators of the battery in the cycle use.

[0061] In a specific embodiment, the inner support structure 4 includes a support plate 41 and a limit member 42; the support plate 41 is in the shape of a flat plate; in the second direction, the support plate 41 is located on opposite sides of the battery cell 1, the support plate 41 is attached to the inner surface of the middle support shell 3, and the limit member 42 is supported between the support plate 41 and the battery cell 1 along the second direction to form a second channel 6 between the battery cell 1 and the support plate 41; in the first direction, the edge of the support plate 41 protrudes from the edge of the battery cell 1, and the edge of the support plate 41 abuts against the middle support shell 3 along the first direction to form a first channel 5 between the battery cell 1 and the middle support shell 3.

[0062] With such arrangement, the support plate 41 and the limit member 42 having different supporting functions can be designed separately, which is beneficial for forming different design parameters in the design of batteries of different specifications, without interfering with each other, and is beneficial for the structural design and scheme calculation of the battery.

[0063] Of course, it is also feasible to set the inner support structure 4 as an arc-shaped plate, which is convex on one side and concave on the other side in the second direction. This shape enables it to have elastic deformation ability in the second direction and can also play a supporting role.

[0064] In a preferred embodiment, in the first direction, a notch is provided on the edge of the support plate 41 that contacts the middle support shell 3; and / or, the support plate 41 is provided with a through hole that penetrates along the thickness direction.

[0065] Such arrangement, without affecting the main supporting capacity of the support plate 41, can achieve the goal of strengthening the connectivity of all channels inside the battery as a whole through the missing design at a local position, which helps to further improve the safety performance of the battery in terms of pressure relief.

[0066] In another preferred embodiment, the limit member 42 includes a plurality of columns dispersed on the support plate 41, all of which are perpendicular to the support plate 41 or meet the perpendicular condition, that is, the center line of the column is in the same direction as the second direction; and / or, the limit member 42 is an elastic member 43 that can be compressed in the second direction.

[0067] In this way, the dispersed columns can make the force and force transmission of the battery cell 1 more balanced, and also play a role in assisting in improving the safety performance of the battery; the column and the support plate 41 are designed vertically to take into account that as the elastic member 43 that bears the expansion and extrusion of the battery cell 1, the force will produce compression, so that the compression produced by each column is more consistent, the force and force transmission of the support plate 41 and the middle support shell 3 are more uniform, and the mechanical stability is good, which can effectively reduce the tilt caused by uneven force. Although in addition to the column, it can also be other three-dimensional structures such as spheres and cambered bodies, but the vertically designed column is preferred, which can facilitate the design and calculation of compression variables, and the compression length of the elastic member 43 can meet the expansion of the battery cell 1 at the end of the battery life. According to the expansion of the battery cell 1, the known elastic coefficient and compression length of the elastic member 43 can be calculated, and the size and length of the column can be reasonably designed to better match the design with the size and expansion of the battery cell 1, and the expansion of the battery cell 1 can be accurately controlled, which is helpful to meet the requirements of long fast charging cycle life of the battery cell 1, and also helpful to design the overall structure of the battery, and improve the cycle and safety performance of the battery.

[0068] In another specific embodiment, the middle support shell 3 includes a plurality of half shells 31 spliced ​​opposite to each other in the second direction, which may be two half shells or other even number in pairs. The half shells 31 are tightly attached to the inner side of the outer shell assembly 2 in the second direction, and an opening 34 is provided at the end of the half shell 31 in the third direction. The opening 34 allows the pole ear 12 of the power core 1 to pass through along the third direction, and there is a gap between the pole ear 12 and the opening 34, and a third channel 7 is formed between the opening 34 and the outer shell assembly 2.

[0069] With such arrangement, the spliced ​​half shells 31 surround the main body of the battery cell 1 , with only the tabs 12 protruding, thereby achieving a higher degree of protection for the battery cell 1 , and assisting in strengthening the outer shape of the battery, while also taking into account ease of assembly.

[0070] Furthermore, one of the two half shells 31 spliced ​​in opposite directions is provided with a convex buckle 32, and the other is provided with a concave buckle 33 that matches and snaps with the convex buckle 32. When the two half shells 31 are spliced ​​along the second direction, the convex buckle 32 extends into the concave buckle 33 and snaps with each other. In this way, the concave-convex matching snap connection not only simplifies the structural design, but also enables the half shells 31 to have the ability to position each other in the third direction, thereby enhancing the feasibility of assembly.

[0071] In another specific embodiment, the shell assembly 2 includes a shell body 22 and a cover assembly; the shell body 22 surrounds the middle support shell 3 on both sides in the first direction and on both sides in the second direction; the cover 23 is located at the end of the shell body 22 to cover the opening 34, and the cover 23 is electrically connected to the pole ear 12 of the battery cell 1; wherein, there is a gap 8 between the cover 23 and the battery body 11 of the battery cell 1 in the third direction, and the two half shells 31 constituting the middle support shell 3 are inserted in the gap 8 and spliced ​​oppositely.

[0072] With such arrangement, the gap 8 existing after the cover plate 23 is electrically connected to the tab 12 of the battery cell 1 is utilized to provide an assembly and insertion position for the split-design middle support shell 3, making the overall structure of the battery compact and reasonable, and the design ingenious.

[0073] Based on the above-mentioned battery, an embodiment of the present application also provides a battery pack, which includes a plurality of the above-mentioned batteries, wherein the opposite ends of the battery respectively have a positive electrode cover plate and a negative electrode cover plate, and between two adjacent batteries in the length direction of the battery, the positive electrode cover plate of one is docked with the negative electrode cover plate of the other and is electrically conductive.

[0074] With such arrangement, the positive pole column of the positive cover plate of the battery can be connected to the negative pole column of the negative cover plate of the adjacent battery through a connecting structure, or the positive and negative pole columns of the two batteries can be directly butt-welded, so that the batteries can be connected in series in the length direction, effectively improving the space utilization rate in battery packaging, encapsulation and assembly; preferably, glue filling protection treatment is performed after the positive cover plates and the negative cover plates of the two batteries are welded, so that when the battery cell 1 thermally runs away, the eruption material will not cause high-voltage arcing.

[0075] Since the battery pack has the above-mentioned batteries, the beneficial effects of the battery pack brought by the batteries can be found in the above content and will not be repeated here.

[0076] Based on the above battery pack, the embodiment of the present application further provides a vehicle, which includes a vehicle body and the above battery pack. Since the vehicle has the above battery pack, the beneficial effects of the vehicle brought by the battery pack can be found in the above content, which will not be repeated here.

[0077] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0078] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0079] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0080] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0081] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.

[0082] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A battery, characterized in that: include: Battery cell (1); An internal support structure (4) exists on at least one side surface of the battery core (1); A middle support shell (3) surrounding the battery core (1) and the inner support structure (4); A shell component (2) having an explosion-proof opening (21) communicating with the outside and surrounding the outer side of the battery core (1), the inner support structure (4) and the middle support shell (3); The inner support structure (4) is supported between the battery core (1) and the middle support shell (3), so that the battery core (1) and the middle support shell (3) are spaced apart from each other to form a channel communicating with the explosion-proof opening (21).

2. The battery according to claim 1, characterized in that The inner support structure (4) comprises an elastic member (43) capable of elastic deformation in a preset expansion direction of the battery core (1), and the channel is arranged on a preset expansion side of the battery core (1).

3. The battery according to claim 1, characterized in that In a first direction of the battery core (1), a first channel (5) is provided between at least one side of the battery core (1) and the middle support shell (3); and / or, in a second direction of the battery core (1), a second channel (6) is provided between at least one side of the battery core (1) and the middle support shell (3); and / or, in a third direction of the battery core (1), a third channel (7) is provided between at least one side of the battery core (1) and the housing component (2); The first direction, the second direction and the third direction are in a spatial rectangular coordinate system relationship.

4. The battery according to claim 3, characterized in that The inner support structure (4) comprises a support plate (41) and a limiting member (42); In the second direction, the support plate (41) is located on two opposite sides of the battery core (1), and the limiting member (42) is supported between the support plate (41) and the battery core (1) along the second direction, so as to form the second channel (6) between the battery core (1) and the support plate (41); In the first direction, the edge of the support plate (41) protrudes from the edge of the battery cell (1), and the edge of the support plate (41) abuts against the middle support shell (3) along the first direction, so as to form the first channel (5) between the battery cell (1) and the middle support shell (3).

5. The battery according to claim 4, characterized in that In the first direction, a notch is provided on the edge of the support plate (41) in contact with the middle support shell (3); And / or, the support plate (41) is provided with a through hole; And / or, the limiting member (42) comprises a plurality of columns dispersedly distributed on the supporting plate (41).

6. The battery according to claim 3, characterized in that The middle support shell (3) comprises two half shells (31) which are spliced ​​together in opposite directions in the second direction, and an opening (34) is provided at an end of the half shell (31) in the third direction, and the third channel (7) is formed between the opening (34) and the outer shell component (2).

7. The battery according to claim 6, characterized in that One of the two half shells (31) that are spliced ​​together in opposite directions is provided with a convex buckle (32), and the other is provided with a concave buckle (33) that matches and snaps with the convex buckle (32).

8. The battery according to claim 6, characterized in that The housing component (2) comprises: A shell body (22) surrounds the two sides of the middle support shell (3) in the first direction and the two sides in the second direction; A cover plate (23) located at an end of the housing body (22) to cover the opening (34); There is a gap (8) between the cover plate (23) and the battery body (11) of the battery cell (1) in the third direction, and two half shells (31) constituting the middle support shell (3) are inserted into the gap (8) and spliced ​​in opposite directions.

9. A battery pack, characterized in that: The method comprises a plurality of batteries according to any one of claims 1 to 8.

10. A vehicle, characterized in that: It comprises a vehicle body and a battery pack as claimed in claim 9.

Images