Battery shell, battery and battery pack

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery shell, a battery and a battery pack. The battery shell comprises a shell main body and a hot melting part, the shell main body is provided with an inner cavity for accommodating the electrode assembly, the shell main body is provided with a melting area capable of communicating the inside and the outside of the shell main body, the hot melting part covers the melting area and at least comprises a first hot melting layer and a second hot melting layer, and the first hot melting layer is closer to the inside of the shell main body than the second hot melting layer. The hot melting part is arranged in the mode that the melting point of the first hot melting layer is smaller than that of the second hot melting layer, the first hot melting layer can cover the surface of the electrode assembly after being heated and melted, and the melting area can be opened after the second hot melting layer is heated and melted. The first hot melting layer can flow and cover the surface of the electrode assembly, so that the effect of preventing thermal runaway from continuously spreading and becoming serious can be achieved, the second hot melting layer can expose the electrode assembly outside the shell main body, fire extinguishing and cooling can be directly conducted on the electrode assembly, the fire can be extinguished from the source, and the fire extinguishing effect is effectively improved.

Description

Technical Field

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

[0002] Rechargeable batteries are now widely used in automobiles, communications, home energy storage, and large-scale energy storage power stations. Battery fires frequently cause personal injury and property damage. Once a battery fire starts, it is very difficult to extinguish, not only due to its electrochemical activity but also because of the location of the fire. If the fire is spreading from inside the battery casing, conventional firefighting methods are unlikely to extinguish the fire at its source within the casing.

[0003] Based on the above, there is a need for a battery casing, a battery, and a battery pack that can eliminate the fire source at its source and ensure the fire extinguishing effect. Utility Model Content

[0004] The first objective of this invention is to provide a battery casing that can eliminate the source of fire at its source and ensure the effectiveness of fire extinguishing.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A battery casing includes a casing body and a heat-fused section. The casing body has an inner cavity for accommodating an electrode assembly, and a molten zone is provided on the casing body that can communicate with the inside and outside of the casing body. The heat-fused section is disposed on the molten zone. The heat-fused section includes at least a first heat-fused layer and a second heat-fused layer. The first heat-fused layer is closer to the inside of the casing body than the second heat-fused layer. The heat-fused section is configured such that the melting point of the first heat-fused layer is lower than the melting point of the second heat-fused layer. After the first heat-fused layer is heated and melted, it can cover the surface of the electrode assembly. After the second heat-fused layer is heated and melted, it can open the molten zone.

[0007] Preferably, the hot-melt part further includes a third hot-melt layer, which is sandwiched and fixed between the first hot-melt layer and the second hot-melt layer. The melting point of the third hot-melt layer is not less than the melting point of the first hot-melt layer and is less than the melting point of the second hot-melt layer; or, the melting point of the third hot-melt layer is greater than the melting point of the first hot-melt layer and not greater than the melting point of the second hot-melt layer.

[0008] Preferably, one of the first hot-melt layer and the second hot-melt layer is provided with a plurality of protrusions, and the other of the first hot-melt layer and the second hot-melt layer is provided with a plurality of recesses, with the plurality of protrusions correspondingly inserted into the plurality of recesses.

[0009] Preferably, the first hot melt layer includes a metal layer, an alloy layer, or a polymer layer;

[0010] And / or, the second hot melt layer includes a metal layer, an alloy layer, or a polymer layer;

[0011] And / or, the third hot melt layer includes a metal layer, an alloy layer, or a polymer layer.

[0012] Preferably, the first hot-melt layer is integrally formed on the shell body; or, the second hot-melt layer is integrally formed on the shell body.

[0013] Preferably, the second hot-melt layer is integrally formed on the shell body, and the shell body has a protrusion protruding outward in the melting zone and a groove formed on the inner sidewall of the shell body. The protrusion forms the second hot-melt layer, and the groove contains the first hot-melt layer.

[0014] Preferably, the thickness of the second hot melt layer is set to d1, and the thickness of the shell body is set to d2. The d1 and d2 satisfy the following relationship: (1 / 20)d2≤d1≤(1 / 2)d2.

[0015] Preferably, the horizontal cross-sectional shape of the shell body is circular or square.

[0016] The beneficial effects of the battery casing provided by this utility model are as follows: When heated and melted, the first heat-melting layer melts and flows to cover the surface of the electrode assembly, which can prevent thermal runaway from spreading and becoming more severe. When the second heat-melting layer melts, it exposes the electrode assembly to the outside of the casing body, thereby directly extinguishing and cooling the electrode assembly, thus eliminating the source of the fire from inside the battery casing and effectively improving the fire extinguishing effect.

[0017] The second objective of this invention is to provide a battery that can solve the problem of battery fires at the source, ensure fire extinguishing effect, and improve battery safety.

[0018] To achieve this objective, the present invention adopts the following technical solution:

[0019] A battery, including an electrode assembly and the aforementioned battery housing, wherein the electrode assembly is housed within the cavity of the battery housing.

[0020] The beneficial effects of the battery provided by this utility model are as follows: Because the battery is equipped with the aforementioned battery casing, which includes a heat-fused section comprising a first heat-fused layer and a second heat-fused layer, the first heat-fused layer, after being heated and melted, can cover the surface of the electrode assembly, thus delaying thermal runaway and extinguishing small flames, and can handle small fires. If the flames on the electrode assembly are not extinguished and the electrode assembly continues to heat up, the second heat-fused layer melts and exposes the electrode assembly to the external environment, thereby directly cooling and extinguishing the fire. This allows the heat-fused section to handle larger fires, solving the problem of battery fires at the source, ensuring fire extinguishing effectiveness, and improving battery safety.

[0021] The third objective of this invention is to provide a battery pack that enhances the safety and reliability of the battery pack and extends its service life.

[0022] To achieve this objective, the present invention adopts the following technical solution:

[0023] The battery pack includes a plurality of the aforementioned batteries, which are arranged in a predetermined direction.

[0024] The beneficial effects of the battery pack provided by this utility model are as follows: Since the battery pack is equipped with multiple batteries as described above, when one of the batteries in the battery pack experiences thermal runaway, the fire can be extinguished from inside the battery, thereby reducing the safety impact on adjacent batteries, enhancing the safety and reliability of the battery pack, and extending the service life of the battery pack. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the battery casing provided in an embodiment of the present invention;

[0026] Figure 2 This is a partial structural cross-sectional view of the battery casing provided in an embodiment of this utility model;

[0027] Figure 3 This is a schematic diagram of the battery pack provided in an embodiment of the present invention.

[0028] In the picture:

[0029] 100. Cooling device; 110. Movable liquid spray nozzle;

[0030] 10. Battery;

[0031] 1. Shell body; 11. Protrusion; 12. Groove;

[0032] 2. Hot melt section; 21. First hot melt layer; 22. Second hot melt layer; 23. Third hot melt layer;

[0033] 3. Top cover assembly; 31. Cover plate; 32. Explosion-proof valve assembly; 33. Pole post; 34. Injection hole. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] The technical solution provided by this utility model will be described below with reference to the accompanying drawings and specific embodiments.

[0039] This embodiment provides a battery casing, including a casing body 1 and a heat-fused section 2. The casing body 1 has an inner cavity for accommodating electrode components, and a molten zone is provided on the casing body 1 to connect the interior and exterior of the casing body 1. The heat-fused section 2 is disposed on the molten zone and includes a first heat-fused layer 21 and a second heat-fused layer 22. The first heat-fused layer 21 is closer to the interior of the casing body 1 than the second heat-fused layer 22. The heat-fused section 2 is configured such that the melting point of the first heat-fused layer 21 is lower than the melting point of the second heat-fused layer 22. After the first heat-fused layer 21 is heated and melted, it can cover the surface of the electrode components. After the second heat-fused layer 22 is heated and melted, it can open the molten zone, so that the casing body 1 can be connected to the interior and exterior through the molten zone.

[0040] Using the battery casing provided in this embodiment, when thermal runaway of the electrode assembly causes a fire inside the battery casing, the first thermally fused layer 21, being closer to the inside of the battery casing and having a lower melting point than the second thermally fused layer 22, will melt first. The melted first thermally fused layer 21 can flow and cover the surface of the electrode assembly, thus preventing the thermal runaway from spreading and worsening. If the fire still cannot be extinguished and the temperature rises to a certain level, the second thermally fused layer 22 will begin to melt. After melting, the second thermally fused layer 22 disappears, and the inside and outside of the battery casing 10 are connected through the molten zone. At this time, the electrode assembly will be exposed, allowing fire extinguishing media to be sprayed onto the electrode assembly using a water gun or other fire extinguishing device. Thus, the fire can be extinguished inside the battery casing through the action of the aforementioned thermally fused part 2, effectively eliminating the fire at its source and significantly improving the fire extinguishing effect.

[0041] Optionally, the battery casing provided in this embodiment has an open opening at the top that communicates with the inner cavity, and a top cover assembly 3 is provided to seal the open opening. The top cover assembly 3 includes a cover plate 31 and an explosion-proof valve assembly 32. The cover plate 31 is used to seal the open opening to protect the electrode assembly in the inner cavity, and a through hole is opened on the cover plate 31 to communicate with the inside and outside of the battery casing. The explosion-proof valve assembly 32 is sealed at the through hole. When the internal gas pressure inside the battery casing increases sharply due to thermal runaway, the explosion-proof valve can burst open, allowing the internal gas to be discharged outward through the through hole, thereby reducing the gas pressure inside the battery casing. Through the above-mentioned explosion-proof valve assembly 32, the internal pressure of the battery casing can be quickly released in advance before extinguishing, preventing the battery casing from rupturing or exploding due to excessive gas pressure, reducing the safety risk of the battery casing before the fire occurs, and also helping to delay the spread of the fire, providing more time for fire extinguishing.

[0042] It should be noted that the top cover assembly 3 also includes components such as pole post 33, sealing element, insulating element, and injection hole 34. Since the pole post 33, sealing element, insulating element, and injection hole 34 are conventional designs of existing top cover assemblies 3, the top cover assembly 3 will not be described in detail in this embodiment.

[0043] Optionally, the first hot melt layer 21 can be made of metal, alloy or polymer materials, and the second hot melt layer 22 can also be made of metal, alloy or polymer materials. As long as the melting point of the first hot melt layer 21 is lower than that of the second hot melt layer 22, they are all within the protection scope of this utility model.

[0044] In one embodiment of this invention, the second hot-melt layer 22 is integrally formed onto the shell body 1 and is made of the same aluminum or steel material as the shell body 1. The first hot-melt layer 21 is made of rubber or plastic. The melting point of rubber or plastic is typically in the range of 100-600℃, while the melting point of aluminum or steel is typically higher than 600℃ (for example, the melting point of aluminum is approximately 660℃, and the melting point of steel is typically between 1370℃ and 1510℃). Furthermore, aluminum or steel has higher structural strength, which can well meet the requirements of good high-stability and deformation resistance required for the battery shell. Those skilled in the art can choose whether the battery shell material is aluminum or steel according to actual working conditions; this invention does not limit this choice.

[0045] In addition, it is worth mentioning that since the second hot melt layer 22 is integrally formed on the shell body 1, the connection gap between the hot melt part 2 and the shell body 1 can be eliminated, which helps to ensure the sealing and reliability of the battery shell, and at the same time reduces the design and manufacturing difficulty of the hot melt part 2 to a certain extent.

[0046] The advantage of integrally molding the second hot-melt layer 22 with the shell body 1 is that, further, combined with Figure 1 , Figure 2 As shown, the shell body 1 has a protrusion 11 protruding outward in the molten zone, forming a groove 12 with the inner sidewall of the shell body 1. The protrusion 11 forms the second hot melt layer 22 mentioned above, and the first hot melt layer 21 is provided in the groove 12 so that the first hot melt layer 21 can be embedded in the groove 12, ensuring that the inner sidewall surface of the shell body 1 is flat and without protrusions. This avoids the problem that the electrode assembly size is reduced and the capacity and energy density of the electrode assembly decreases in order to avoid the first hot melt layer 21.

[0047] It should be further noted that, in one embodiment of this invention, the thickness of the second hot-melt layer 22 needs to be reduced to ensure that the second hot-melt layer 22 can melt and break in time. For example, as shown... Figure 2As shown, the thickness of the second heat-fusion layer 22 is set as d1, and the thickness of the shell body 1 is set as d2. The following relationship exists between d1 and d2: (1 / 20)d2≤d1≤(1 / 2)d2. By setting the thickness of the second heat-fusion layer 22 within the above range, on the one hand, it can avoid the thickness of the second heat-fusion layer 22 being too low, ensuring that the second heat-fusion layer 22 has good structural strength and is not easily deformed or damaged. On the other hand, it can also ensure that when the temperature inside the shell body 1 reaches a certain range, the second heat-fusion layer 22 can melt and expose the internal electrode assembly, thereby extinguishing the fire in time.

[0048] More preferably, both ends of the first hot melt layer 21 are pressed onto the inner sidewall of the groove 12 to ensure that the first hot melt layer 21 and the second hot melt layer 22 are firmly connected, to prevent the first hot melt layer 21 from falling off, and the first hot melt layer 21 can support the thinned second hot melt layer 22, further reducing the risk of performance failure caused by deformation of the second hot melt layer 22.

[0049] Of course, it is understood that in other alternative embodiments of this invention, the first hot-melt layer 21 and the shell body 1 can be made of the same material and integrally formed with the shell body 1. This eliminates the need for the aforementioned protrusion 11, allowing the shell body 1 to be directly designed and manufactured with a smooth outer surface. The second hot-melt layer 22 is then attached to the outer surface of the first hot-melt layer 21 and covers the molten area, thus forming the hot-melt portion 2. This configuration simplifies the manufacturing process of the shell body 1, ensures the structural strength of the shell body 1, eliminates stress concentration areas, and simultaneously achieves the purpose of melting the hot-melt portion 2. Therefore, both of the above embodiments are within the protection scope of this utility model.

[0050] Accordingly, in other alternative embodiments of this embodiment, the melting point of the first hot melt layer 21 can be reduced by decreasing the thickness of the first hot melt layer 21 and by using an alloy or polymer material with a higher melting point, so as to ensure that the melting point of the first hot melt layer 21 is lower than the melting point of the second hot melt layer 22.

[0051] Optionally, in this embodiment, the heat-fusion part 2 further includes a third heat-fusion layer 23, which is sandwiched and fixedly connected between the first heat-fusion layer 21 and the second heat-fusion layer 22. This connection can be achieved, for example, by bonding or interference fit. It should be noted that, in one embodiment, the melting point of the third heat-fusion layer 23 is not less than the melting point of the first heat-fusion layer 21 and less than the melting point of the second heat-fusion layer 22. During normal use, the third heat-fusion layer 23 effectively improves the stability and reliability of the connection between the first heat-fusion layer 21 and the second heat-fusion layer 22, preventing the first heat-fusion layer 21 from detaching. When the first heat-fusion layer 21 melts, the third heat-fusion layer 23 can melt simultaneously with it and cover the electrode assembly, or it can melt independently at higher temperatures to avoid interference with the second heat-fusion layer 22. This allows the second heat-fusion layer 22 to melt normally at higher temperatures, exposing the electrode assembly to the external environment.

[0052] In other alternative embodiments, the third heat-fused layer 23 can be configured with a melting point greater than that of the first heat-fused layer 21 but not greater than that of the second heat-fused layer 22. During normal use, the third heat-fused layer 23 can also enhance the stability and reliability of the connection between the first heat-fused layer 21 and the second heat-fused layer 22. When the first heat-fused layer 21 melts upon heating, the third heat-fused layer 23 may remain unchanged, only delaying thermal runaway through the first heat-fused layer 21. Alternatively, the third heat-fused layer 23 can melt simultaneously with the second heat-fused layer 22, exposing the electrode assembly to the external environment. It can also melt independently before the internal temperature of the housing 1 reaches the melting point of the second heat-fused layer 22, avoiding interference with the second heat-fused layer 22 and allowing it to melt normally at higher temperatures. Therefore, both of the above embodiments fall within the scope of protection of this utility model.

[0053] For example, in this embodiment, the third hot-melt layer 23 is a carbon coating layer, which can increase the adhesion of the first hot-melt layer 21 and the second hot-melt layer 22. The thickness d3 of the carbon coating layer is preferably 1-5 μm. Of course, in some other parallel embodiments, the third hot-melt layer 23 can also be made of metal materials, alloy materials or other types of polymer materials.

[0054] In other parallel embodiments, protrusions and recesses can be provided between the first hot-melt layer 21 and the second hot-melt layer 22. For example, multiple protrusions can be provided on the side of the first hot-melt layer 21 facing the second hot-melt layer 22, and multiple recesses can be provided on the side of the second hot-melt layer 22 facing the first hot-melt layer 21. By inserting the protrusions into the recesses, the contact area between the first hot-melt layer 21 and the second hot-melt layer 22 can be effectively increased, thereby increasing the bonding strength between the two and effectively improving the stability and durability of the entire hot-melt part 2. Of course, multiple protrusions can also be provided on the side of the second hot-melt layer 22 facing the first hot-melt layer 21, and multiple recesses can be provided on the side of the first hot-melt layer 21 facing the second hot-melt layer 22. This can also achieve the above-mentioned technical effects. This utility model is not limited in this respect, nor is the number of protrusions and recesses provided.

[0055] This embodiment also provides a battery 10, which includes an electrode assembly and a battery casing provided in the above embodiment, wherein the electrode assembly is housed in the inner cavity of the battery casing. Since the battery casing is provided with a heat-fused section 2, which includes a first heat-fused layer 21 and a second heat-fused layer 22, the first heat-fused layer 21, after being heated and melted, can cover the surface of the electrode assembly, thus delaying thermal runaway and extinguishing small flames, and can handle small fires. If the flame on the electrode assembly is not extinguished and the electrode assembly continues to heat up, the second heat-fused layer 22 melts and exposes the electrode assembly to the external environment, allowing the electrode assembly to be cooled and extinguished by the movable spray nozzle 110 on the cooling device 100 (e.g., a water gun). Therefore, the heat-fused section 2 can also handle larger fires and solve the problem of battery 10 fires from the root, ensuring fire extinguishing effect and improving the safety of the battery 10.

[0056] It should be noted that when the battery 10 is used in a vehicle, it can also be used with onboard fire extinguishing equipment. In this case, the battery 10 is generally water-cooled. When thermal runaway occurs inside the battery 10 and the molten part 2 melts due to heat, cooling water can be directly poured into the battery 10 through the molten zone, thereby achieving the effect of cooling and extinguishing the fire from inside the battery 10, effectively preventing the spread and deterioration of the thermal runaway of the battery 10.

[0057] Optionally, the battery 10 can be a square battery 10 or a cylindrical battery 10, and this utility model is not limited in this respect.

[0058] This embodiment also provides a battery pack, including multiple batteries 10 as described in the above embodiments. The multiple batteries 10 are arranged along the normal direction of the side with the largest heat dissipation area, and the molten zone on the battery 10 is located on the side with the smallest heat dissipation area of ​​the battery casing. Because the battery pack is provided with multiple batteries 10, when one of the batteries 10 in the battery pack experiences thermal runaway, the fire can be extinguished from inside the battery 10, thereby reducing the safety impact on adjacent batteries 10, enhancing the safety and reliability of the battery pack, and extending the service life of the battery pack.

[0059] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery casing, characterized in that, The device includes a shell body (1) and a heat-melting part (2). The shell body (1) has an inner cavity for accommodating an electrode assembly, and a molten zone is provided on the shell body (1) that can connect the inside and outside of the shell body (1). The heat-melting part (2) is disposed on the molten zone. The heat-melting part (2) includes at least a first heat-melting layer (21) and a second heat-melting layer (22). The first heat-melting layer (21) is closer to the inside of the shell body (1) than the second heat-melting layer (22). The heat-melting part (2) is configured such that the melting point of the first heat-melting layer (21) is lower than the melting point of the second heat-melting layer (22). After the first heat-melting layer (21) is heated and melted, it can cover the surface of the electrode assembly. After the second heat-melting layer (22) is heated and melted, it can open the molten zone.

2. The battery casing according to claim 1, characterized in that, The hot-melt part (2) further includes a third hot-melt layer (23), which is sandwiched and fixed between the first hot-melt layer (21) and the second hot-melt layer (22). The melting point of the third hot-melt layer (23) is not less than the melting point of the first hot-melt layer (21) and less than the melting point of the second hot-melt layer (22); or, the melting point of the third hot-melt layer (23) is greater than the melting point of the first hot-melt layer (21) and not greater than the melting point of the second hot-melt layer (22).

3. The battery casing according to claim 1, characterized in that, One of the first hot melt layer (21) and the second hot melt layer (22) is provided with a plurality of protrusions, and the other of the first hot melt layer (21) and the second hot melt layer (22) is provided with a plurality of recesses, and the plurality of protrusions are correspondingly inserted into the plurality of recesses.

4. The battery casing according to claim 2, characterized in that, The first hot melt layer (21) includes a metal layer, an alloy layer, or a polymer layer; And / or, the second hot melt layer (22) includes a metal layer, an alloy layer or a polymer layer; And / or, the third hot melt layer (23) includes a metal layer, an alloy layer or a polymer layer.

5. The battery casing according to any one of claims 1-4, characterized in that, The first hot melt layer (21) is integrally formed on the shell body (1); or, the second hot melt layer (22) is integrally formed on the shell body (1).

6. The battery casing according to claim 5, characterized in that, The second hot melt layer (22) is integrally formed on the shell body (1). The shell body (1) has a protrusion (11) protruding outward in the melting zone and a groove (12) formed on the inner sidewall of the shell body (1). The protrusion (11) forms the second hot melt layer (22), and the first hot melt layer (21) is disposed in the groove (12).

7. The battery casing according to claim 6, characterized in that, The thickness of the second hot melt layer (22) is set as d1, and the thickness of the shell body (1) is set as d2. The d1 and d2 satisfy the following relationship: (1 / 20)d2≤d1≤(1 / 2)d2.

8. The battery casing according to any one of claims 1-4, characterized in that, The horizontal cross-sectional shape of the shell body (1) is circular or square.

9. A battery, characterized in that, The battery includes an electrode assembly and a battery housing according to any one of claims 1-8, wherein the electrode assembly is housed within the cavity of the battery housing.

10. A battery pack, characterized in that, It includes a plurality of batteries (10) as described in claim 9, wherein the plurality of batteries (10) are arranged in a predetermined direction.

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