Battery and electric equipment

Abstract

The embodiment of the invention provides a battery and electric equipment. The battery comprises a first-layer battery cell, a second-layer battery cell and an isolation part. In the first direction, the isolation member is located between the first layer of battery cells and the second layer of battery cells. The first layer of battery monomers comprises a plurality of first battery monomers, a first pressure relief mechanism is arranged on one side, facing the isolation part, of each first battery monomer, the second layer of battery monomers comprises a plurality of second battery monomers, and a second pressure relief mechanism is arranged on one side, facing the isolation part, of each second battery monomer. And a first collection cavity is formed in the isolation part. The isolation part is provided with a first surface facing the first layer of battery monomers and a second surface facing the second layer of battery monomers, the first surface is provided with a first through hole communicated with the first collection cavity, and the second surface is provided with a second through hole communicated with the first collection cavity. According to the technical scheme provided by the invention, the energy density of the battery can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to a battery and an electrical device. Background Technology

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0003] Energy density is a crucial factor in battery manufacturing. Therefore, improving battery energy density is a pressing technical challenge that needs to be addressed in battery technology. Summary of the Invention

[0004] This application provides a battery and an electrical device that can improve the energy density of the battery.

[0005] This application is achieved through the following technical solution:

[0006] In a first aspect, embodiments of this application provide a battery comprising a first layer of battery cells, a second layer of battery cells, and an isolation component. The first layer of battery cells and the second layer of battery cells are stacked along a first direction. Along the first direction, the isolation component is located between the first layer of battery cells and the second layer of battery cells. The first layer of battery cells includes a plurality of first battery cells, and a first pressure relief mechanism is provided on the side of the first battery cells facing the isolation component. The second layer of battery cells includes a plurality of second battery cells, and a second pressure relief mechanism is provided on the side of the second battery cells facing the isolation component. The isolation component has a first collection chamber inside, which is used to collect the emissions from the first battery cells when the first pressure relief mechanism is actuated, and also to collect the emissions from the second battery cells when the second pressure relief mechanism is actuated.

[0007] According to the battery embodiment of this application, the first collection chamber is used to collect the emissions of the first battery cell when the first pressure relief mechanism is actuated and / or to collect the emissions of the second battery cell when the second pressure relief mechanism is actuated. The emissions released when the first pressure relief mechanism is actuated and the emissions released when the second pressure relief mechanism is actuated share the first collection chamber, which is beneficial to saving internal space of the battery and improving the energy density of the battery.

[0008] According to some embodiments of this application, the isolation component has a first surface facing the first layer of battery cells and a second surface facing the second layer of battery cells. The first surface has a first through hole communicating with the first collection cavity, and the first through hole is correspondingly disposed with the first pressure relief mechanism. The second surface has a second through hole communicating with the first collection cavity, and the second through hole is correspondingly disposed with the second pressure relief mechanism.

[0009] In the above scheme, the first through hole is correspondingly set with the first pressure relief mechanism, and the second through hole is correspondingly set with the second pressure relief mechanism. The setting of the first through hole and the second through hole facilitates the collection of the emissions by the first collection chamber, thereby reducing the risk of the emissions short-circuiting the first battery cell and / or the second battery cell. At the same time, it also helps to reduce the risk of thermal runaway propagation and improves the reliability of the battery.

[0010] According to some embodiments of this application, the isolation component includes a blocking member disposed in a first collection cavity; along a first direction, the blocking member is spaced apart from a first through hole and spaced apart from a second through hole, and the projection of the blocking member covers the first through hole and the second through hole.

[0011] In the above scheme, the blocking member is disposed in the first collection cavity, and the projection of the blocking member covers the first through hole and the second through hole. The blocking member can block the emissions released by the first pressure relief mechanism and the emissions released by the second pressure relief mechanism, thereby reducing the impact of the emissions released by the first pressure relief mechanism on the second battery cell and reducing the impact of the emissions released by the second pressure relief mechanism on the first battery cell, thereby improving the reliability of the battery.

[0012] According to some embodiments of this application, the blocking member divides the first collection chamber into a first chamber and a second chamber that are independent of each other, with a first through hole communicating with the first chamber and a second through hole communicating with the second chamber.

[0013] In the above scheme, the first chamber and the second chamber are independent of each other, which can further reduce the impact of the emissions released by the first pressure relief mechanism on the second battery cell, and reduce the impact of the emissions released by the second pressure relief mechanism on the first battery cell, thereby improving the reliability of the battery.

[0014] According to some embodiments of this application, the battery further includes a housing, which includes two first walls disposed opposite to each other along a second direction, a first layer of battery cells disposed between the two first walls, an isolation component connecting the two first walls, and the second direction being perpendicular to the first direction; a second collection chamber is formed inside the first wall, and the second collection chamber is in communication with the first chamber.

[0015] In the above scheme, the isolation component connects the two first walls, and the isolation component and the two first walls enclose a space for accommodating the first layer of battery cells. The second collection chamber is connected to the first chamber so that the emissions released by the first pressure relief mechanism can enter the second collection chamber through the first chamber, so as to collect the emissions released by the first pressure relief mechanism, reduce the impact of the emissions on other battery cells, and improve the reliability of the battery.

[0016] According to some embodiments of this application, the battery further includes a third pressure relief mechanism disposed on at least one first wall portion, the third pressure relief mechanism being used to release emissions from the second collection chamber.

[0017] In the above scheme, the third pressure relief mechanism facilitates the release of emissions from the second collection chamber when the pressure in the second collection chamber reaches the threshold, thereby improving the reliability of the battery.

[0018] According to some embodiments of this application, the isolation component is integrally formed or welded to the two first wall portions.

[0019] In the above scheme, the isolation component is integrally formed with the two first walls, which improves the structural strength of the isolation component and the two first walls. The isolation component is welded to the two first walls, which reduces the difficulty of processing and manufacturing.

[0020] According to some embodiments of this application, the housing includes two second walls disposed opposite to each other along a second direction, a second layer of battery cells disposed between the two second walls, and an isolation component connecting the two second walls; a third collection chamber is formed inside the second wall, and the third collection chamber communicates with the second chamber.

[0021] In the above scheme, the isolation component connects the two second walls, and the isolation component and the two second walls enclose a space for accommodating the second layer of battery cells. The third collection chamber is connected to the second chamber so that the emissions released by the second pressure relief mechanism can enter the third collection chamber through the second chamber, so as to collect the emissions released by the second pressure relief mechanism and reduce the impact of the emissions on other battery cells.

[0022] According to some embodiments of this application, the battery further includes a fourth pressure relief mechanism disposed on at least one second wall portion, the fourth pressure relief mechanism being used to release emissions from the third collection chamber.

[0023] In the above scheme, the fourth pressure relief mechanism facilitates the release of emissions from the third collection chamber when the pressure in the third collection chamber reaches the threshold, thereby improving the reliability of the battery.

[0024] According to some embodiments of this application, the isolation component is integrally formed or welded to the two second wall portions.

[0025] In the above scheme, the isolation component is integrally formed with the two second walls, which improves the structural strength of the isolation component and the two second walls. The isolation component is welded to the two second walls, making the processing and manufacturing process relatively simple.

[0026] According to some embodiments of this application, the isolation component includes a first plate and a second plate disposed opposite to each other along a first direction, and a first collection cavity is located between the first plate and the second plate; the first plate includes a first surface and a third surface disposed opposite to each other along the first direction, and the second plate includes a second surface and a fourth surface disposed opposite to each other along the first direction.

[0027] In the above scheme, the first pressure relief mechanism is arranged opposite to the first plate, the second pressure relief mechanism is arranged opposite to the second plate, and the first plate and the second plate are arranged opposite to each other along the first direction and define the first collection cavity. The structure is simple and easy to process and manufacture.

[0028] According to some embodiments of this application, the blocking member includes a first guide member, the first guide member having a first end and a second end, the first end being connected to a third surface, the second end being spaced apart from a first through hole, and the projection of the first guide member covering the first through hole along a first direction.

[0029] In the above scheme, the first end is connected to the third surface, the second end is spaced apart from the first through hole, and the projection of the first guide member covers the first through hole, so that the discharge entering the first collection chamber through the first through hole can be guided by the first guide member, thereby reducing the risk of the discharge flowing directly to the second through hole.

[0030] According to some embodiments of this application, the distance between the first guide member and the third surface gradually increases from the first end to the second end.

[0031] In the above scheme, from the first end to the second end, the distance between the first guide member and the third surface gradually increases, which makes it easier for the first guide member to change the flow direction of the discharge entering the first collection chamber from the first through hole.

[0032] According to some embodiments of this application, the blocking member further includes a second flow guide, which has a third end and a fourth end. The third end is connected to a fourth surface, and the fourth end is spaced apart from the second through hole. Along the first direction, the projection of the second flow guide covers the second through hole.

[0033] In the above scheme, the third end is connected to the fourth surface, the fourth end is spaced apart from the second through hole, and the projection of the second guide member covers the second through hole, so that the discharge entering the first collection chamber through the second through hole can be guided by the second guide member, thereby reducing the risk of the discharge flowing directly to the first through hole.

[0034] According to some embodiments of this application, the distance between the second guide member and the fourth surface gradually increases from the third end to the fourth end.

[0035] In the above scheme, from the third end to the fourth end, the distance between the second guide and the fourth surface gradually increases, which makes it easier for the second guide to change the flow direction of the discharge entering the first collection chamber from the second through hole.

[0036] According to some embodiments of this application, the battery further includes a housing, which includes two first sidewalls disposed opposite to each other along a second direction, and an isolation component connecting the two first sidewalls. The second direction is perpendicular to the first direction. Each first sidewall includes a first wall portion and a second wall portion arranged along the first direction. A first layer of battery cells is located between the first wall portions of the two first sidewalls, and a second layer of battery cells is located between the second wall portions of the two first sidewalls.

[0037] In the above scheme, the isolation component is connected to the two first sidewalls to facilitate fixing the isolation component; the isolation component and the two first sidewalls are connected to form a space for accommodating the first layer of battery cells to facilitate protecting the first layer of battery cells; the isolation component and the two second sidewalls are connected to form a space for accommodating the second layer of battery cells to facilitate protecting the second layer of battery cells.

[0038] According to some embodiments of this application, a fifth collection cavity is formed inside the first sidewall, and the fifth collection cavity is in communication with the first collection cavity.

[0039] In the above scheme, the fifth collection chamber can be connected to the first collection chamber so that the emissions in the first collection chamber can flow to the fifth collection chamber, which can accommodate more emissions.

[0040] According to some embodiments of this application, the battery further includes a fifth pressure relief mechanism disposed on the first sidewall, which is used to release emissions from the fifth collection chamber.

[0041] In the above scheme, the fifth pressure relief mechanism facilitates the release of emissions from the fifth collection chamber when the pressure in the fifth collection chamber reaches a threshold, thereby improving the reliability of the battery.

[0042] According to some embodiments of this application, the battery further includes a first cover and a second cover, the first cover being connected to two first walls; the second cover being connected to two second walls; the second cover and the first cover are disposed opposite to each other along a first direction, an isolation component is located between the first cover and the second cover, a first layer of battery cells is located between the first cover and the isolation component, and a second layer of battery cells is located between the second cover and the isolation component.

[0043] In the above scheme, a first cover, two first walls, and an insulating component enclose a space to accommodate the first layer of battery cells, thereby protecting the first layer of battery cells. By removing the first cover, maintenance and replacement of the first layer of battery cells can be achieved. A second cover, two second walls, and an insulating component enclose a space to accommodate the second layer of battery cells, thereby protecting the second layer of battery cells. By removing the second cover, maintenance and replacement of the second layer of battery cells can be achieved.

[0044] According to some embodiments of this application, a first layer of battery cells is connected to a first cover, and a second layer of battery cells is connected to a second cover.

[0045] In the above scheme, the first layer of battery cells is connected to the first cover, and the second layer of battery cells is connected to the second cover. During the battery assembly process, the assembly of the first layer of batteries with the first cover and the assembly of the second layer of battery cells with the second cover can be carried out simultaneously, which can improve the battery assembly efficiency.

[0046] According to some embodiments of this application, a first flow channel for containing heat exchange medium is formed inside the first cover, and a second flow channel for containing heat exchange medium is formed inside the second cover.

[0047] In the above scheme, the first flow channel improves the heat exchange efficiency of the first layer of battery cells, thus enhancing battery reliability. Similarly, the second flow channel improves the heat exchange efficiency of the second layer of battery cells, further enhancing battery reliability.

[0048] According to some embodiments of this application, the first layer of battery cells includes a plurality of first battery cell groups; the battery also includes a first separator, which is connected to the first cover and located between two adjacent first battery cell groups.

[0049] In the above scheme, the setting of the first separator can improve the installation stability of multiple first battery cell groups.

[0050] According to some embodiments of this application, a first battery cell group is connected to a first separator.

[0051] In the above scheme, the gravity of the first battery cell group is applied to the first separator, and the first separator provides the first battery cell group with a force to overcome gravity.

[0052] According to some embodiments of this application, the first partition is integrally formed or welded to the first cover.

[0053] In the above scheme, the first partition and the first cover are integrally formed, which can improve the structural strength. The first partition and the first cover are welded together, which reduces the manufacturing difficulty.

[0054] According to some embodiments of this application, a third flow channel for accommodating heat exchange medium is formed inside the first partition.

[0055] In the above scheme, the setting of the third flow channel can regulate the temperature of the first battery cell group, which helps to improve the reliability of the battery.

[0056] According to some embodiments of this application, the second layer of battery cell includes a plurality of second battery cell groups; the battery also includes a second separator connected to the second cover and located between two adjacent second battery cell groups.

[0057] In the above scheme, the setting of the second separator can improve the installation stability of multiple second battery cell groups.

[0058] According to some embodiments of this application, the second battery cell group is connected to the second separator.

[0059] In the above scheme, the gravity of the second battery cell pack is applied to the second separator, and the second separator provides the second battery cell pack with a force to overcome gravity.

[0060] According to some embodiments of this application, the second partition is integrally formed or welded to the second cover.

[0061] In the above scheme, the second partition and the second cover are integrally formed, which can improve the structural strength. The second partition and the second cover are welded together, which reduces the manufacturing difficulty.

[0062] According to some embodiments of this application, the interior of the second partition has a fourth flow channel for accommodating the heat exchange medium.

[0063] In the above scheme, the fourth flow channel can regulate the temperature of the second battery cell group, which helps to improve the reliability of the battery.

[0064] According to some embodiments of this application, adjacent first and second wall portions are integrally formed.

[0065] In the above scheme, the integral molding of adjacent first and second wall portions can improve structural strength.

[0066] According to some embodiments of this application, the first direction is parallel to the direction of gravity.

[0067] In the above scheme, the first layer of battery cells and the second layer of battery cells are stacked along the first direction, which can make reasonable use of the space in the direction of gravity and improve the space utilization rate.

[0068] Secondly, embodiments of this application also provide an electrical device that includes the battery provided in any of the above embodiments.

[0069] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0070] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0071] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments;

[0072] Figure 2 A cross-sectional view of a battery provided for some embodiments of this application;

[0073] Figure 3 This is an exploded view of a portion of the battery structure provided in some embodiments of this application;

[0074] Figure 4 This is an assembly diagram of the housing and isolation components provided in some embodiments of this application;

[0075] Figure 5 This is an exploded view of a portion of the battery structure provided in some other embodiments of this application;

[0076] Figure 6 This is an assembly diagram of the housing and isolation components provided in other embodiments of this application;

[0077] Figure 7 Assembly diagrams of the first layer battery cell and the first cover, and assembly diagrams of the second layer battery cell and the second cover provided for some embodiments of this application;

[0078] Figure 8 This is an exploded view of the battery structure provided in some embodiments of this application.

[0079] Icons: 100 - Battery; 10 - First layer battery cell; 10a - First battery cell group; 11 - First battery cell; 20 - Second layer battery cell; 20a - Second battery cell group; 111 - First pressure relief mechanism; 21 - Second battery cell; 211 - Second pressure relief mechanism; 30 - Isolation component; 31 - First collection chamber; 311 - First chamber; 312 - Second chamber; 32 - First surface; 321 - First through hole; 33 - Second surface; 331 - Second through hole; 34 - Blocking component; 341 - First guide component; 341a - First end; 341b - Second end; 342 - Second guide component; 342a - Third end; 342b - Fourth end; 35 - First plate; 351 - First protrusion; 36 - Second plate; 361-Second protrusion; 37-Third surface; 38-Fourth surface; 39-Fifth flow channel; 40-Box; 41-First wall; 411-Second collection chamber; 42-Second wall; 421-Third collection chamber; 43-First side wall; 431-Fifth collection chamber; 44-Second side wall; 51-Third pressure relief mechanism; 52-Fourth pressure relief mechanism; 53-Fifth pressure relief mechanism; 61-First cover; 611-First flow channel; 62-Second cover; 621-Second flow channel; 71-First separator; 711-Third flow channel; 72-Second separator; 721-Fourth flow channel; 200-Controller; 300-Motor; 1000-Vehicle; X-First direction; Y-Second direction; Z-Third direction. Detailed Implementation

[0080] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0081] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0082] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0083] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0084] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0085] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0086] In some embodiments, the battery can be a battery module, and when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0087] In some embodiments, the battery can be a battery pack, which includes a battery case and individual battery cells, with the individual battery cells or battery modules housed in the battery case.

[0088] In some embodiments, the battery box may be part of the vehicle's chassis structure. For example, a portion of the battery box may be at least a part of the vehicle's floor, or a portion of the battery box may be at least a part of the vehicle's crossbeams and longitudinal beams.

[0089] In some embodiments, the battery can be an energy storage device. Energy storage devices include energy storage containers, energy storage cabinets, etc.

[0090] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0091] As an example, a battery cell can be a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic batteries, such as hexagonal prismatic batteries.

[0092] The battery cell includes a casing and a pressure relief mechanism. The pressure relief mechanism is located in the casing and is used to release the internal pressure and temperature of the casing.

[0093] A pressure relief mechanism is a component or part that can be actuated to release internal pressure or temperature. Pressure relief mechanisms can take the form of explosion-proof valves, gas valves, pressure relief valves, or safety valves, and can specifically employ pressure-sensitive or temperature-sensitive components or structures. That is, when the internal pressure or temperature of a battery cell reaches a predetermined threshold, the pressure relief mechanism actuates or a weak structure within the mechanism is damaged, thereby creating an opening or channel for the release of internal pressure or temperature.

[0094] The term "actuation" as used in this application refers to the activation or actuation of the pressure relief mechanism to a certain state, thereby releasing the internal pressure and temperature of the battery cell. The actions of the pressure relief mechanism may include, but are not limited to, at least a portion of the mechanism rupturing, breaking, tearing, or opening. When the pressure relief mechanism is activated, the high-temperature, high-pressure substances inside the battery cell are discharged as waste from the activated portion. This method allows for pressure and temperature relief of the battery cell under controllable pressure or temperature, thereby preventing potentially more serious accidents.

[0095] The emissions from battery cells mentioned in this application include, but are not limited to: electrolyte, dissolved or split positive and negative electrode plates, fragments of the separator, high-temperature and high-pressure gases generated by the reaction, flames, etc.

[0096] The development of battery technology must take into account multiple design factors, such as reliability, discharge capacity, charge / discharge rate and other performance parameters. In addition, the energy density of the battery also needs to be considered.

[0097] In some embodiments, the battery typically includes multiple battery cell groups, with at least two of the battery cell groups stacked in one direction. To complete the assembly of the battery cell groups along the first predetermined direction and reduce the risk of thermal runaway propagation, each battery cell group is provided with a corresponding collection chamber for collecting emissions released when the battery cell is actuated. Multiple collection chambers occupy a large amount of internal battery space, resulting in a lower energy density of the battery.

[0098] In view of this, this application provides a battery comprising a first layer of battery cells, a second layer of battery cells, and an isolation component, wherein the first layer of battery cells and the second layer of battery cells are stacked along a first direction. Along the first direction, the isolation component is located between the first layer of battery cells and the second layer of battery cells. A first pressure relief mechanism is provided on the side of the first battery cell facing the isolation component, and a second pressure relief mechanism is provided on the side of the second battery cell facing the isolation component. The isolation component has a first collection chamber inside, which is used to collect emissions from the first battery cell when the first pressure relief mechanism is actuated and / or to collect emissions from the second battery cell when the second pressure relief mechanism is actuated. The emissions released when the first pressure relief mechanism is actuated and the emissions released when the second pressure relief mechanism is actuated share the first collection chamber, which helps to save internal space in the battery and improves the energy density of the battery.

[0099] The batteries disclosed in this application can be used, but are not limited to, in electrical equipment such as vehicles, ships, or aircraft. A power system for such electrical equipment can be constructed using batteries disclosed in this application.

[0100] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric bicycles, electric motorcycles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0101] For ease of explanation, the following embodiments will use a vehicle as an example of an electrical device according to an embodiment of this application.

[0102] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery 100 is disposed inside the vehicle 1000, and the battery 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery 100 can be used to power the vehicle 1000; for example, the battery 100 can serve as the operating power source for the vehicle 1000's electrical system, such as meeting the power requirements for starting, navigation, and operation of the vehicle 1000.

[0103] The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to supply power to the motor 300, for example, for the power needs of the vehicle 1000 during startup, navigation and driving.

[0104] In some embodiments of this application, the battery 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0105] Please refer to Figures 2 to 7 , Figure 2 Cross-sectional views of batteries provided in some embodiments of this application. Figure 3 This is an exploded view of a portion of the battery structure provided in some embodiments of this application. Figure 4 This is an assembly diagram of the housing and isolation components provided in some embodiments of this application. Figure 5 This is an exploded view of a portion of the battery structure provided in some other embodiments of this application. Figure 6 This is an assembly diagram of the housing and isolation components provided in other embodiments of this application. Figure 7 The following are assembly diagrams of the first layer of battery cell and the first cover, and the second layer of battery cell and the second cover, provided for some embodiments of this application.

[0106] This application provides a battery 100, which includes a first layer of battery cells 10, a second layer of battery cells 20, and an isolation component 30. The first layer of battery cells 10 and the second layer of battery cells 20 are stacked along a first direction X. Along the first direction X, the isolation component 30 is located between the first layer of battery cells 10 and the second layer of battery cells 20. The first layer of battery cells 10 includes a plurality of first battery cells 11, and a first pressure relief mechanism 111 is provided on the side of the first battery cell 11 facing the isolation component 30. The second layer of battery cells 20 includes a plurality of second battery cells 21, and a second pressure relief mechanism 211 is provided on the side of the second battery cell 21 facing the isolation component 30. The isolation component 30 has a first collection chamber 31 inside, which is used to collect the emissions from the first battery cells 11 when the first pressure relief mechanism 111 is actuated, and also to collect the emissions from the second battery cells 21 when the second pressure relief mechanism 211 is actuated.

[0107] Please refer to Figure 2 The first layer of battery cells 10 and the second layer of battery cells 20 are stacked along a first direction X, which can be the first layer of battery cells 10 and the second layer of battery cells 20 being stacked along the direction of gravity. The first direction X can be parallel to the direction of gravity, or the first direction X can form a certain angle with the direction of gravity. In some embodiments, when the first layer of battery cells 10 and the second layer of battery cells 20 are stacked along the direction of gravity, the space inside the battery 100 in the direction of gravity can be reasonably utilized.

[0108] Multiple first battery cells 11 can be connected in series, in parallel, or in a mixed manner. A mixed connection means that multiple first battery cells 11 can be connected in both series and parallel.

[0109] Multiple second battery cells 21 can be connected in series, in parallel, or in a mixed manner. A mixed connection means that multiple second battery cells 21 can be connected in both series and parallel.

[0110] The first battery cell 11 and the second battery cell 21 can be a secondary battery 100 or a primary battery 100; the first battery cell 11 and the second battery cell 21 can also be a lithium-sulfur battery 100, a sodium-ion battery 100 or a magnesium-ion battery 100, but are not limited to these.

[0111] In some embodiments, the first battery cell 11 includes a first electrode terminal. The first electrode terminal may be disposed at the same end of the first battery cell 11 as the first pressure relief mechanism 111. Alternatively, the first electrode terminal may be disposed at different ends of the first battery cell 11 as the first pressure relief mechanism 111, such as adjacent ends or opposite ends.

[0112] In some embodiments, the second battery cell 21 includes a second electrode terminal. The second electrode terminal may be disposed at the same end of the second battery cell 21 as the second pressure relief mechanism 211, or the second electrode terminal may be disposed at different ends of the second battery cell 21 as the second pressure relief mechanism 211, for example, adjacent ends or opposite ends.

[0113] The material of the isolation component 30 can be various, such as copper, iron, aluminum, steel, aluminum alloy, plastic, etc.

[0114] The battery 100 also includes a first busbar and a second busbar. The first busbar is used to realize the electrical connection of two first battery cells 11, and the second busbar is used to realize the electrical connection of two second battery cells 21.

[0115] The first surface 32 and the second surface 33 are two surfaces of the isolation member 30 that are disposed opposite to each other in the first direction X.

[0116] In some embodiments, the isolation member 30 may be formed by an extrusion process, during which the isolation member 30 having at least one cavity is formed together, one of which may serve as a first collection cavity 31. In other embodiments, the isolation member 30 may also include two plates, one plate being stamped to form a groove, and the other plate closing the opening of the groove to form the first collection cavity 31.

[0117] The first collection chamber 31 is used to collect the emissions from the first battery cell 11 when the first pressure relief mechanism 111 is actuated, and / or to collect the emissions from the second battery cell 21 when the second pressure relief mechanism 211 is actuated, so that the first layer of battery cells 10 and the second layer of battery cells 20 share the first collection chamber 31. In some embodiments, multiple flow channels may be provided on the isolation member 30, some of which are used to guide the emissions released when the first pressure relief mechanism 111 of the first layer of battery cells 10 is actuated into the first collection chamber 31, and some of which are used to guide the emissions released when the second pressure relief mechanism 211 of the second layer of battery cells 20 is actuated into the first collection chamber 31.

[0118] The first collecting cavity 31 can be a single cavity or multiple cavities spaced apart.

[0119] According to the battery 100 of the present application embodiment, the emissions released when the first pressure relief mechanism 111 is actuated and the emissions released when the second pressure relief mechanism 211 is actuated share the first collection chamber 31, which is beneficial to saving the internal space of the battery 100 and improving the energy density of the battery 100.

[0120] Please refer to Figures 3 to 6 According to some embodiments of this application, the isolation component 30 has a first surface 32 facing the first layer battery cell 10 and a second surface 33 facing the second layer battery cell 20. The first surface 32 has a first through hole 321 communicating with the first collection cavity 31. The first through hole 321 is correspondingly disposed with the first pressure relief mechanism 111. The second surface 33 has a second through hole 331 communicating with the first collection cavity 31. The second through hole 331 is correspondingly disposed with the second pressure relief mechanism 211.

[0121] The first through hole 321 is correspondingly provided with the first pressure relief mechanism 111. When the first pressure relief mechanism 111 is actuated, the discharged material can enter the first collection chamber 31 through the first through hole 321.

[0122] In some embodiments, the number of first through holes 321 may be the same as or different from the number of first pressure relief mechanisms 111. For example, one first through hole 321 may correspond to one first pressure relief mechanism 111, or one first through hole 321 may correspond to multiple first pressure relief mechanisms 111.

[0123] The second through hole 331 is correspondingly provided with the second pressure relief mechanism 211. When the second pressure relief mechanism 211 is actuated, the discharged material can enter the first collection chamber 31 through the second through hole 331.

[0124] In some embodiments, the number of second through holes 331 may be the same as or different from the number of second pressure relief mechanisms 211. For example, one second through hole 331 may correspond to one second pressure relief mechanism 211, or one second through hole 331 may correspond to multiple second pressure relief mechanisms 211.

[0125] In the above scheme, the first through hole 321 is correspondingly provided with the first pressure relief mechanism 111, and the second through hole 331 is correspondingly provided with the second pressure relief mechanism 211. The arrangement of the first through hole 321 and the second through hole 331 facilitates the collection of emissions by the first collection chamber 31, thereby reducing the risk of emissions short-circuiting the first battery cell 11 and / or the second battery cell 21. At the same time, it also helps to reduce the risk of thermal runaway propagation and improves the reliability of the battery 100.

[0126] Please refer to Figure 4 and Figure 6 According to some embodiments of this application, the isolation component 30 includes a blocking member 34 disposed within the first collection cavity 31. Along the first direction X, the blocking member 34 is spaced apart from the first through hole 321 and spaced apart from the second through hole 331, and the projection of the blocking member 34 covers the first through hole 321 and the second through hole 331.

[0127] The blocking member 34 is disposed in the first collection chamber 31, and the blocking member 34 is spaced apart from the first through hole 321 so that the emissions discharged from the first battery cell 11 can enter the first collection chamber 31 through the first through hole 321; the blocking member 34 is spaced apart from the second through hole 331 so that the emissions discharged from the second battery cell 21 can enter the first collection chamber 31 through the second through hole 331.

[0128] The blocking member 34 can completely isolate the first through hole 321 from the second through hole 331, so that the first through hole 321 and the second through hole 331 are located in two independent chambers respectively; or, the blocking member 34 can only separate the first through hole 321 and the second through hole 331, but the first through hole 321 and the second through hole 331 are still located in the same chamber.

[0129] In some embodiments, along the first direction X, the first through hole 321 and the second through hole 331 at least partially overlap; or, along the first direction X, the first through hole 321 and the second through hole 331 do not overlap.

[0130] After the emissions released by the first pressure relief mechanism 111 enter the first collection chamber 31 through the first through hole 321, the blocking member 34 can prevent the emissions from flowing in the first direction X. The blocking member 34 can slow down the flow speed of the emissions and reduce the risk of the emissions flowing into the second through hole 331. After the emissions released by the second pressure relief mechanism 211 enter the first collection chamber 31 through the second through hole 331, the blocking member 34 can prevent the emissions from flowing in the first direction X. The blocking member 34 can slow down the flow speed of the emissions and reduce the risk of the emissions flowing into the first through hole 321.

[0131] In the above scheme, the blocking member 34 is disposed in the first collection cavity 31, and the projection of the blocking member 34 covers the first through hole 321 and the second through hole 331. The blocking member 34 can block the emissions released by the first pressure relief mechanism 111 and the emissions released by the second pressure relief mechanism 211, thereby reducing the impact of the emissions released by the first pressure relief mechanism 111 on the second battery cell 21 and reducing the impact of the emissions released by the second pressure relief mechanism 211 on the first battery cell 11, thereby improving the reliability of the battery 100.

[0132] Please refer to Figure 3 and Figure 4 According to some embodiments of this application, the blocking member 34 divides the first collection chamber 31 into a first chamber 311 and a second chamber 312 that are independent of each other. The first through hole 321 communicates with the first chamber 311 and the second through hole 331 communicates with the second chamber 312.

[0133] In some embodiments, the battery 100 further includes a housing 40, within which the first layer of battery cells 10, the second layer of battery cells 20, and the insulating component 30 are all located. The insulating component 30 is connected to the housing 40 to separate the first layer of battery cells 10 and the second layer of battery cells 20. A blocking member 34 is connected to the housing 40, thereby dividing the first collection chamber 31 into two independent chambers: a first chamber 311 and a second chamber 312.

[0134] The first chamber 311 and the second chamber 312 are two independent chambers and are not connected. After the emissions released by the first pressure relief mechanism 111 enter the first chamber 311 through the first through-hole 321, the emissions cannot enter the second chamber 312, thus reducing the impact of the emissions on the second layer of battery cells 20. Similarly, after the emissions released by the second pressure relief mechanism 211 enter the second chamber 312 through the second through-hole 331, the emissions cannot enter the first chamber 311, thus reducing the impact of the emissions on the first layer of battery cells 10.

[0135] In the above scheme, the first chamber 311 and the second chamber 312 are independent of each other, which can further reduce the impact of the emissions released by the first pressure relief mechanism 111 on the second battery cell 21 and reduce the impact of the emissions released by the second pressure relief mechanism 211 on the first battery cell 11, thereby improving the reliability of the battery 100.

[0136] Please refer to Figure 3 and Figure 4 According to some embodiments of this application, the battery 100 further includes a housing 40, which includes two first wall portions 41 disposed opposite to each other along the second direction Y. A first layer of battery cells 10 is disposed between the two first wall portions 41, and an isolation member 30 connects the two first wall portions 41. The second direction Y is perpendicular to the first direction X. A second collection cavity 411 is formed inside the first wall portion 41, and the second collection cavity 411 communicates with the first chamber 311.

[0137] Two first wall portions 41 are arranged opposite each other along the second direction Y, and an isolation component 30 connects the two first wall portions 41. The isolation component 30 can be located at one end of the first wall portion 41 in the first direction X, close to the second layer battery cell 20.

[0138] In some embodiments, in the first layer of battery cells 10, a plurality of first battery cells 11 can be stacked along the third direction Z, with the third direction Z, the second direction Y and the first direction X being perpendicular to each other.

[0139] The second collection chamber 411 is connected to the first chamber 311. When the discharge released by the first pressure relief mechanism 111 enters the first chamber 311, the discharge can enter the second collection chamber 411, thereby increasing the storage space for the discharge.

[0140] In the above scheme, the isolation component 30 connects the two first wall portions 41, and the isolation component 30 and the two first wall portions 41 enclose a space for accommodating the first layer of battery cells 10. The second collection chamber 411 communicates with the first chamber 311 so that the emissions released by the first pressure relief mechanism 111 can enter the second collection chamber 411 through the first chamber 311, so as to collect the emissions released by the first pressure relief mechanism 111, reduce the impact of emissions on other battery cells 100, and improve the reliability of the battery 100.

[0141] Please refer to Figure 3 and Figure 4 According to some embodiments of this application, the battery 100 further includes a third pressure relief mechanism 51, which is disposed on at least one first wall portion 41 and is used to release emissions from the second collection chamber 411.

[0142] The third pressure relief mechanism 51 can be disposed on the side of the first wall portion 41 opposite to the first layer of battery cell 10, so that the third pressure relief mechanism 51 can release the emissions in the second collection chamber 411.

[0143] In the above scheme, the third pressure relief mechanism 51 is provided to facilitate the release of the emissions in the second collection chamber 411 when the pressure in the second collection chamber 411 reaches the threshold, thereby improving the reliability of the battery 100.

[0144] According to some embodiments of this application, the isolation component 30 is integrally formed or welded to the two first wall portions 41.

[0145] The isolation component 30 and the two first wall portions 41 can be integrally extruded or injection molded.

[0146] In the above scheme, the isolation component 30 is integrally formed with the two first wall portions 41, which improves the structural strength of the isolation component 30 and the two first wall portions 41. The isolation component 30 and the two first wall portions 41 are welded together, which reduces the difficulty of processing and manufacturing.

[0147] Please refer to Figure 3 and Figure 4 According to some embodiments of this application, the housing 40 includes two second wall portions 42 disposed opposite to each other along the second direction Y, a second layer of battery cell 20 is disposed between the two second wall portions 42, and an isolation member 30 connects the two second wall portions 42; a third collection cavity 421 is formed inside the second wall portion 42, and the third collection cavity 421 communicates with the second chamber 312.

[0148] Two second wall portions 42 are arranged opposite each other along the second direction Y, and an isolation member 30 connects the two second wall portions 42. The isolation member 30 can be located at one end of the second wall portion 42 in the first direction X, close to the first layer of battery cell 10.

[0149] In some embodiments, in the second layer of battery cells 20, a plurality of second battery cells 21 may be stacked along a third direction Z layer.

[0150] The third collection chamber 421 is connected to the second chamber 312. When the discharge released by the second pressure relief mechanism 211 enters the second chamber 312, the discharge can enter the third collection chamber 421, thereby increasing the storage space for the discharge.

[0151] In the above scheme, the isolation component 30 connects the two second wall portions 42, and the isolation component 30 and the two second wall portions 42 form a space for accommodating the second layer of battery cells 20. The third collection chamber 421 is connected to the second chamber 312 so that the emissions released by the second pressure relief mechanism 211 can enter the third collection chamber 421 through the second chamber 312, so as to collect the emissions released by the second pressure relief mechanism 211 and reduce the impact of the emissions on other battery cells 100.

[0152] Please refer to Figure 3 and Figure 4 According to some embodiments of this application, the battery 100 further includes a fourth pressure relief mechanism 52, which is disposed on at least one second wall portion 42 and is used to release emissions from the third collection chamber 421.

[0153] The fourth pressure relief mechanism 52 can be disposed on the side of the second wall portion 42 opposite to the second layer battery cell 20, so that the fourth pressure relief mechanism 52 can release the emissions in the third collection chamber 421.

[0154] In the above scheme, the fourth pressure relief mechanism 52 is provided to facilitate the release of the emissions in the third collection chamber 421 when the pressure in the third collection chamber 421 reaches the threshold, thereby improving the reliability of the battery 100.

[0155] According to some embodiments of this application, the isolation component 30 is integrally formed or welded to the two second wall portions 42.

[0156] The isolation component 30 and the two second wall portions 42 can be integrally extruded or injection molded.

[0157] In the above scheme, the isolation component 30 is integrally formed with the two second wall portions 42, which improves the structural strength of the isolation component 30 and the two second wall portions 42. The isolation component 30 and the two second wall portions 42 are welded together, which reduces the difficulty of processing and manufacturing.

[0158] Please refer to Figure 5 and Figure 6 According to some embodiments of this application, the isolation component 30 includes a first plate 35 and a second plate 36 disposed opposite to each other along a first direction X, and a first collection cavity 31 is located between the first plate 35 and the second plate 36; the first plate 35 includes a first surface 32 and a third surface 37 disposed opposite to each other along the first direction X, and the second plate 36 includes a second surface 33 and a fourth surface 38 disposed opposite to each other along the first direction X.

[0159] The third surface 37 and the fourth surface 38 define the first collection cavity 31, the first through hole 321 penetrates the first surface 32 and the third surface 37, and the second through hole 331 penetrates the second surface 33 and the fourth surface 38.

[0160] In the above scheme, the first pressure relief mechanism 111 is arranged opposite to the first plate 35, and the second pressure relief mechanism 211 is arranged opposite to the second plate 36. The first plate 35 and the second plate 36 are arranged opposite to each other along the first direction X and define the first collection cavity 31. The structure is simple and easy to process and manufacture.

[0161] In some embodiments, the first plate 35 has a first protrusion 351 protruding away from the second plate 36, and a first through hole 321 is disposed in the first protrusion 351; the second plate 36 has a second protrusion 361 protruding away from the first plate 35, and a second through hole 331 is disposed in the second protrusion 361.

[0162] The first protrusion 351 improves the overall strength of the first plate 35. The second protrusion 361 improves the overall strength of the second plate 36.

[0163] Please refer to Figure 5 and Figure 6 According to some embodiments of this application, the blocking member 34 includes a first guide member 341, the first guide member 341 having a first end 341a and a second end 341b, the first end 341a being connected to a third surface 37, and the second end 341b being spaced apart from the first through hole 321, and the projection of the first guide member 341 covering the first through hole 321 along the first direction X.

[0164] The first end 341a and the second end 341b can be arranged sequentially in the first direction X, and the second end 341b can be the end of the first guide member 341 that is away from the third surface 37.

[0165] The second end 341b is spaced apart from the first through hole 321, so that the second end 341b does not block the first through hole 321, so that the discharge released by the first pressure relief mechanism 111 can enter the first collection chamber 31 through the first through hole 321.

[0166] Along the first direction X, the projection of the first guide member 341 covers the first through hole 321, so that after the discharge enters the first collection chamber 31 through the first through hole 321, it can be guided by the first guide member 341 and change the flow direction of the discharge.

[0167] In the above scheme, the first end 341a is connected to the third surface 37, the second end 341b is spaced apart from the first through hole 321, and the projection of the first guide member 341 covers the first through hole 321, so that the discharge entering the first collection chamber 31 through the first through hole 321 can be guided by the first guide member 341, thereby reducing the risk of the discharge flowing directly to the second through hole 331.

[0168] Please refer to Figure 5 and Figure 6According to some embodiments of this application, the distance between the first guide member 341 and the third surface 37 gradually increases from the first end 341a to the second end 341b.

[0169] "From the first end 341a to the second end 341b, the distance between the first guide member 341 and the third surface 37 gradually increases" means that from the first end 341a to the second end 341b, in the first direction X, the distance between the first guide member 341 and the third surface 37 gradually increases, and the first guide member 341 is inclined relative to the third surface 37.

[0170] When the discharge from the first pressure relief mechanism 111 enters the first through hole 321, the discharge flows away from the first end 341a under the guidance of the first guide member 341, buffering the flow rate of the discharge and reducing the risk of the discharge directly impacting the second plate 36.

[0171] In the above scheme, from the first end 341a to the second end 341b, the distance between the first guide member 341 and the third surface 37 gradually increases, which makes it easier for the first guide member 341 to change the flow direction of the discharge entering the first collection chamber 31 from the first through hole 321.

[0172] Please refer to Figure 5 and Figure 6 According to some embodiments of this application, the blocking member 34 further includes a second guide member 342, which has a third end 342a and a fourth end 342b. The third end 342a is connected to the fourth surface 38, and the fourth end 342b is spaced apart from the second through hole 331. Along the first direction X, the projection of the second guide member 342 covers the second through hole 331.

[0173] The third end 342a and the fourth end 342b can be arranged sequentially in the first direction X, and the fourth end 342b can be the end of the second guide member 342 that is away from the fourth surface 38.

[0174] The fourth end 342b is spaced apart from the second through hole 331, so that the fourth end 342b does not block the second through hole 331, so that the discharge released by the second pressure relief mechanism 211 can enter the first collection chamber 31 through the second through hole 331.

[0175] Along the first direction X, the projection of the second guide member 342 covers the second through hole 331, so that after the discharge enters the first collection chamber 31 through the second through hole 331, it can be guided by the second guide member 342 to change the flow direction of the discharge.

[0176] In the above scheme, the third end 342a is connected to the fourth surface 38, the fourth end 342b is spaced apart from the second through hole 331, and the projection of the second guide member 342 covers the second through hole 331, so that the discharge entering the first collection chamber 31 through the second through hole 331 can be guided by the second guide member 342, thereby reducing the risk of the discharge flowing directly to the first through hole 321.

[0177] Please refer to Figure 5 and Figure 6 According to some embodiments of this application, the distance between the second guide member 342 and the fourth surface 38 gradually increases from the third end 342a to the fourth end 342b.

[0178] "From the third end 342a to the fourth end 342b, the distance between the second guide member 342 and the fourth surface 38 gradually increases" means that from the third end 342a to the fourth end 342b, in the first direction X, the distance between the second guide member 342 and the fourth surface 38 gradually increases, and the second guide member 342 is inclined relative to the fourth surface 38.

[0179] When the discharge from the second pressure relief mechanism 211 enters the second through hole 331, the discharge flows away from the third end 342a under the guidance of the second guide member 342, buffering the flow rate of the discharge and reducing the risk of the discharge directly impacting the first plate 35.

[0180] In the above scheme, from the third end 342a to the fourth end 342b, the distance between the second guide member 342 and the fourth surface 38 gradually increases, which makes it easier for the second guide member 342 to change the flow direction of the discharge entering the first collection chamber 31 from the second through hole 331.

[0181] Please refer to Figure 5 and Figure 6 According to some embodiments of this application, the battery 100 further includes a housing 40, which includes two first sidewalls 43 disposed opposite to each other along a second direction Y. An isolation member 30 connects the two first sidewalls 43. The second direction Y is perpendicular to the first direction X. Each first sidewall 43 includes a first wall portion 41 and a second wall portion 42 arranged along the first direction X. A first layer of battery cells 10 is located between the first wall portions 41 of the two first sidewalls 43, and a second layer of battery cells 20 is located between the second wall portions 42 of the two first sidewalls 43.

[0182] The isolation component 30 connects the two first sidewalls 43 and divides the space between the two first sidewalls 43 into two spaces, which respectively accommodate the first layer of battery cell 10 and the second layer of battery cell 20.

[0183] In each first sidewall 43, the first wall portion 41 and the second wall portion 42 can be integrally formed or welded together.

[0184] In the above scheme, the isolation component 30 is connected to two first sidewalls 43 to facilitate fixing the isolation component 30; the isolation component 30 and the two first wall portions 41 are connected to form a space for accommodating the first layer of battery cells 10 to facilitate protecting the first layer of battery cells 10; the isolation component 30 and the two second wall portions 42 are connected to form a space for accommodating the second layer of battery cells 20 to facilitate protecting the second layer of battery cells 20.

[0185] Please refer to Figure 5 and Figure 6 According to some embodiments of this application, a fifth collection cavity 431 is formed inside the first sidewall 43, and the fifth collection cavity 431 is connected to the first collection cavity 31.

[0186] The first wall portion 41 and the second wall portion 42 can both be hollow structures, and the internal space of the first wall portion 41 and the internal space of the second wall portion 42 can together form the fifth collection cavity 431.

[0187] In some embodiments, when the blocking member 34 includes a first guide member 341 and a second guide member 342, the fourth end 342b is connected to the second end 341b, and the first guide member 341 and the second guide member 342 can guide the discharge entering the first collection chamber 31 toward the fifth collection chamber 431.

[0188] In the above scheme, the fifth collection chamber 431 can be connected to the first collection chamber 31 so that the emissions in the first collection chamber 31 can flow to the fifth collection chamber 431, which can accommodate more emissions.

[0189] Please refer to Figure 5 and Figure 6 According to some embodiments of this application, the battery 100 further includes a fifth pressure relief mechanism 53, which is disposed on the first sidewall 43 and is used to release the emissions in the fifth collection chamber 431.

[0190] The fifth pressure relief mechanism 53 can be disposed on one first sidewall 43 or on two first sidewalls 43. The fifth pressure relief mechanism 53 can be disposed on the side of the first sidewall 43 away from the first collection chamber 31, that is, the direction of the discharge of the fifth pressure relief mechanism 53 is away from the first collection chamber 31.

[0191] In the above scheme, the fifth pressure relief mechanism 53 is provided to facilitate the release of the emissions in the fifth collection chamber 431 when the pressure in the fifth collection chamber 431 reaches the threshold, thereby improving the reliability of the battery 100.

[0192] Please refer to Figure 7According to some embodiments of this application, the battery 100 further includes a first cover 61 and a second cover 62. The first cover 61 is connected to two first wall portions 41; the second cover 62 is connected to two second wall portions 42. Along the first direction X, the second cover 62 is disposed opposite to the first cover 61. The isolation component 30 is located between the first cover 61 and the second cover 62. The first layer of battery cells 10 is located between the first cover 61 and the isolation component 30, and the second layer of battery cells 20 is located between the second cover 62 and the isolation component 30.

[0193] The first cover 61 can be constructed as a cover structure with one side open, or it can be constructed as a flat plate.

[0194] The first cover 61, the two first walls 41 and the isolation component 30 enclose a space for accommodating the first layer of battery cells 10. The first cover 61 can protect the first layer of battery cells 10.

[0195] The second cover 62 can be constructed as a cover structure with one side open, or it can be constructed as a flat plate.

[0196] The second cover 62, the two second walls 42 and the isolation component 30 enclose a space for accommodating the second layer of battery cells 20. The second cover 62 can protect the second layer of battery cells 20.

[0197] In the above scheme, the first cover 61, the two first walls 41, and the isolation component 30 form a space to accommodate the first layer of battery cells 10, thereby protecting the first layer of battery cells 10. By disassembling the first cover 61, maintenance and replacement of the first layer of battery cells 10 can be achieved. The second cover 62, the two second walls 42, and the isolation component 30 form a space to accommodate the second layer of battery cells 20, thereby protecting the second layer of battery cells 20. By disassembling the second cover 62, maintenance and replacement of the second layer of battery cells 20 can be achieved.

[0198] Please refer to Figure 7 According to some embodiments of this application, the first layer of battery cell 10 is connected to the first cover 61, and the second layer of battery cell 20 is connected to the second cover 62.

[0199] There are various ways to connect the first battery cell 10 to the first cover 61, such as bonding, welding, or threading the first battery cell 10 to the first cover 61.

[0200] In some embodiments, the first cover 61 may support the first layer of battery cells 10. The weight of the first layer of battery cells 10 is applied to the first cover 61, and the first cover 61 provides the first layer of battery cells 10 with a force to overcome the gravity.

[0201] There are various ways to connect the second battery cell 20 to the second cover 62, such as bonding, welding, or threading the second battery cell 20 to the second cover 62.

[0202] In some embodiments, the second cover 62 may support the second layer of battery cells 100. The gravity of the second layer of battery cells 20 is applied to the second cover 62, and the second cover 62 provides the second layer of battery cells 20 with a force to overcome gravity.

[0203] In the above scheme, the first layer of battery cell 10 is connected to the first cover 61, and the second layer of battery cell 20 is connected to the second cover 62. During the assembly of battery 100, the assembly of the first layer of battery 100 with the first cover 61 and the assembly of the second layer of battery cell 20 with the second cover 62 can be carried out simultaneously, which can improve the assembly efficiency of battery 100.

[0204] Please refer to Figure 7 According to some embodiments of this application, the interior of the first cover 61 is formed with a first flow channel 611 for containing heat exchange medium, and the interior of the second cover 62 is formed with a second flow channel 621 for containing heat exchange medium.

[0205] The heat exchange medium in the first flow channel 611 can be the same as the heat exchange medium in the second flow channel 621.

[0206] The heat exchange medium located in the first flow channel 611 can be circulated to achieve better temperature regulation. For example, the first flow channel 611 is provided with two openings, one for the heat exchange medium inlet and the other for the heat exchange medium outlet. The two openings are respectively connected to an external heat exchange medium circulation system so that the heat exchange medium circulates within the first flow channel 611.

[0207] The heat exchange medium located in the second flow channel 621 can be circulated to achieve better temperature regulation. For example, the second flow channel 621 is provided with two openings, one for the heat exchange medium inlet and the other for the heat exchange medium outlet. The two openings are respectively connected to an external heat exchange medium circulation system so that the heat exchange medium circulates within the second flow channel 621.

[0208] In the above scheme, the first flow channel 611 can improve the heat exchange efficiency of the first layer of battery cells 10, which facilitates the improvement of the reliability of battery 100. The second flow channel 621 can improve the heat exchange efficiency of the second layer of battery cells 20, which facilitates the improvement of the reliability of battery 100.

[0209] Please refer to Figure 7According to some embodiments of this application, the first layer of battery cell 10 includes a plurality of first battery cell groups 10a; the battery 100 also includes a first separator 71, which is connected to the first cover 61 and located between two adjacent first battery cell groups 10a.

[0210] In some embodiments, a plurality of first battery cell groups 10a may be arranged at intervals along a second direction Y. For example, as shown in the figure, the first layer of battery cells 10 includes two first battery cell groups 10a, which are arranged at intervals along the second direction Y.

[0211] The first separator 71 is a component used to separate two adjacent first battery cell groups 10a.

[0212] The first partition 71 is connected to the first cover 61, for example, by bonding, welding, or integral molding the first partition 71 with the first cover 61.

[0213] In the above scheme, the setting of the first separator 71 can improve the installation stability of multiple first battery cell groups 10a.

[0214] Please refer to Figure 7 According to some embodiments of this application, the first battery cell group 10a is connected to the first separator 71.

[0215] The connection method between the first battery cell group 10a and the first separator 71 can be bonding, welding, etc.

[0216] In the above scheme, the gravity of the first battery cell group 10a is applied to the first separator 71, and the first separator 71 provides the first battery cell group 10a with a force to overcome gravity.

[0217] According to some embodiments of this application, the first partition 71 is integrally formed or welded to the first cover 61.

[0218] The first separator 71 and the first cover 61 can be integrally extruded or injection molded.

[0219] In the above scheme, the first partition 71 and the first cover 61 are integrally formed, which can improve the structural strength. The first partition 71 and the first cover 61 are welded together, which reduces the manufacturing difficulty.

[0220] Please refer to Figure 7 According to some embodiments of this application, the interior of the first partition 71 is formed with a third flow channel 711 for accommodating the heat exchange medium.

[0221] The heat exchange medium in the third flow channel 711 can be the same as the heat exchange medium in the first flow channel 611.

[0222] The heat exchange medium located in the third flow channel 711 can be circulated to achieve better temperature regulation. For example, the third flow channel 711 can be provided with two openings, one for the heat exchange medium inlet and the other for the heat exchange medium outlet. The two openings are respectively connected to an external heat exchange medium circulation system so that the heat exchange medium circulates within the third flow channel 711.

[0223] In some embodiments, the third flow channel 711 may be connected to the first flow channel 611.

[0224] In the above scheme, the setting of the third flow channel 711 can adjust the temperature of the first battery cell group 10a, which helps to improve the reliability of the battery 100.

[0225] Please refer to Figure 7 According to some embodiments of this application, the second battery cell 20 includes a plurality of second battery cell groups 20a; the battery 100 also includes a second separator 72, which is connected to the second cover 62 and located between two adjacent second battery cell groups 20a.

[0226] In some embodiments, a plurality of second battery cell groups 20a may be spaced apart along a second direction Y. For example, as shown in the figure, the second layer of battery cells 20 includes two second battery cell groups 20a, which are spaced apart along the second direction Y.

[0227] The second separator 72 is a component used to separate two adjacent second battery cell groups 20a.

[0228] The second partition 72 is connected to the second cover 62, for example, by bonding, welding, or integral molding the second partition 72 with the second cover 62.

[0229] In the above scheme, the setting of the second separator 72 can improve the installation stability of multiple second battery cell packs 20a.

[0230] According to some embodiments of this application, the second battery cell group 20a is connected to the second separator 72.

[0231] The connection method for the second battery cell group 20a and the second separator 72 can be bonding, welding, etc.

[0232] In the above scheme, the gravity of the second battery cell group 20a is applied to the second separator 72, and the second separator 72 provides the second battery cell group 20a with a force to overcome the gravity.

[0233] According to some embodiments of this application, the second partition 72 is integrally formed or welded to the second cover 62.

[0234] The second separator 72 and the second cover 62 can be integrally extruded or injection molded.

[0235] In the above design, the second partition 72 and the second cover 62 are integrally formed, which improves structural strength. The second partition 72 and the second cover 62 are welded together, which reduces manufacturing difficulty.

[0236] Please refer to Figure 7 According to some embodiments of this application, the interior of the second partition 72 is formed with a fourth flow channel 721 for accommodating the heat exchange medium.

[0237] The heat exchange medium in the fourth flow channel 721 can be the same as the heat exchange medium in the second flow channel 621.

[0238] The heat exchange medium located in the fourth flow channel 721 can be circulated to achieve better temperature regulation. For example, the fourth flow channel 721 can be provided with two openings, one for the heat exchange medium inlet and the other for the heat exchange medium outlet. The two openings are respectively connected to an external heat exchange medium circulation system so that the heat exchange medium circulates within the fourth flow channel 721.

[0239] In some embodiments, the fourth flow channel 721 may be connected to the second flow channel 621.

[0240] In the above scheme, the setting of the fourth flow channel 721 can adjust the temperature of the second battery cell group 20a, which helps to improve the reliability of the battery 100.

[0241] In some embodiments, the interior of the isolation component 30 may have a fifth flow channel 39 for accommodating the heat exchange medium. The provision of the fifth flow channel 39 can regulate the temperature of the first layer of battery cells 10 and the second layer of battery cells 20, thereby improving the reliability of the battery 100.

[0242] According to some embodiments of this application, adjacent first wall portions 41 and second wall portions 42 are integrally formed.

[0243] The first wall portion 41 and the second wall portion 42 can be integrally extruded.

[0244] In the above scheme, the integral molding of adjacent first wall portion 41 and second wall portion 42 can improve the structural strength.

[0245] Please refer to Figure 8 , Figure 8This is an exploded view of the battery structure provided in some embodiments of this application. According to some embodiments of this application, the housing 40 includes two first sidewalls 43 and two second sidewalls 44. The two first sidewalls 43 are arranged opposite each other along a second direction Y, and the two second sidewalls 44 are arranged opposite each other along a third direction Z. The two ends of the first sidewalls 43 in the third direction Z are respectively connected to the two second sidewalls 44. Each first sidewall 43 includes a first wall portion 41 and a second wall portion 42. An isolation member 30 connects the two first sidewalls 43 and the two second sidewalls 44. A first cover 61 connects the two first wall portions 41 and the two second sidewalls 44, and a second cover 62 connects the two second wall portions 42 and the two second sidewalls 44. The first cover 61, the isolation member 30, the two first wall portions 41, and the two second sidewalls 44 define a space for accommodating a first layer of battery cells, and the second cover 62, the isolation member 30, the two second wall portions 42, and the two second sidewalls 44 define a space for accommodating a second layer of battery cells 20.

[0246] The enclosure 40 protects the first layer of battery cells 10 and the second layer of battery cells 20, improving the reliability of the battery 100.

[0247] According to some embodiments of this application, the first direction X is parallel to the direction of gravity.

[0248] In the above scheme, the first layer of battery cells 10 and the second layer of battery cells 20 are stacked along the first direction X, which can make reasonable use of the space in the direction of gravity and improve the space utilization rate.

[0249] In the above embodiments, the pressure relief mechanism mentioned can be any possible pressure relief mechanism, and the embodiments of this application are not limited to this. For example, the pressure relief mechanism can be a temperature-sensitive pressure relief mechanism, which is configured to melt when the internal temperature of the battery 100 cell equipped with the pressure relief mechanism reaches a threshold; for example, the pressure relief mechanism can be a pressure-sensitive pressure relief mechanism, which is configured to rupture when the internal gas pressure of the battery 100 cell equipped with the pressure relief mechanism reaches a threshold.

[0250] According to some embodiments of this application, this application also provides an electrical device that includes the battery 100 provided in any of the above embodiments.

[0251] Battery 100 is used to provide electrical energy.

[0252] The electrical equipment can be any of the systems or devices that use battery 100 as described above.

[0253] According to some embodiments of this application, please refer to Figures 2 to 4 ,as well as Figure 7 and Figure 8This application provides a battery 100, which includes a first layer of battery cells 10, a second layer of battery cells 20, an isolation component 30, a housing 40, a first cover 61, and a second cover 62.

[0254] A first layer of battery cells 10 and a second layer of battery cells 20 are stacked along a first direction X, which is parallel to the direction of gravity. An isolation component 30 is located between the first layer of battery cells 10 and the second layer of battery cells 20 along the first direction X. The first layer of battery cells 10 includes multiple first battery cells 11, and a first pressure relief mechanism 111 is provided on the side of the first battery cell 11 facing the isolation component 30. The second layer of battery cells 20 includes multiple second battery cells 21, and a second pressure relief mechanism 211 is provided on the side of the second battery cell 21 facing the isolation component 30. The isolation component 30 has a first collection chamber 31 inside, which is used to collect the emissions from the first battery cells 11 when the first pressure relief mechanism 111 is actuated and / or to collect the emissions from the second battery cells 21 when the second pressure relief mechanism 211 is actuated. The isolation component 30 has a first surface 32 facing the first layer battery cell 10 and a second surface 33 facing the second layer battery cell 20. The first surface 32 has a first through hole 321 communicating with the first collection cavity 31, and the second surface 33 has a second through hole 331 communicating with the first collection cavity 31.

[0255] The isolation component 30 includes a blocking member 34, which is disposed in the first collection cavity 31. Along the first direction X, the blocking member 34 is spaced apart from the first through hole 321 and spaced apart from the second through hole 331. The projection of the blocking member 34 covers the first through hole 321 and the second through hole 331.

[0256] In some embodiments, the blocking member 34 divides the first collection chamber 31 into a first chamber 311 and a second chamber 312 that are independent of each other. The first through hole 321 communicates with the first chamber 311 and the second through hole 331 communicates with the second chamber 312.

[0257] The housing 40 includes two first wall portions 41 arranged opposite each other along a second direction Y. A first layer of battery cells 10 is disposed between the two first wall portions 41. An isolation member 30 connects the two first wall portions 41. The second direction Y is perpendicular to the first direction X. A second collection cavity 411 is formed inside the first wall portion 41, and the second collection cavity 411 communicates with the first chamber 311. The housing 40 also includes two second wall portions 42 arranged opposite each other along a second direction Y. A second layer of battery cells 20 is disposed between the two second wall portions 42. An isolation member 30 connects the two second wall portions 42. A third collection cavity 421 is formed inside the second wall portion 42, and the third collection cavity 421 communicates with the second chamber 312.

[0258] The battery 100 also includes a third pressure relief mechanism 51, which is disposed on at least one first wall portion 41 and is used to release emissions from the second collection chamber 411. The battery 100 also includes a fourth pressure relief mechanism 52, which is disposed on at least one second wall portion 42 and is used to release emissions from the third collection chamber 421.

[0259] According to the embodiment of the present application, the battery 100 divides the first collection chamber 31 into a first chamber 311 and a second chamber 312 by the blocking member 34. The first chamber 311 and the second chamber 312 are independent of each other, which can reduce the impact of the emissions released by the first pressure relief mechanism 111 on the second layer of battery cells 20, and reduce the impact of the emissions released by the second pressure relief mechanism 211 on the first layer of battery cells 10, thereby reducing the risk of thermal runaway propagation and improving the reliability of the battery 100.

[0260] According to some embodiments of this application, please refer to Figures 5 to 8 This application provides a battery 100, which includes a first layer of battery cells 10, a second layer of battery cells 20, an isolation component 30, a housing 40, a first cover 61, and a second cover 62.

[0261] A first layer of battery cells 10 and a second layer of battery cells 20 are stacked along a first direction X, which is parallel to the direction of gravity. An isolation component 30 is located between the first layer of battery cells 10 and the second layer of battery cells 20 along the first direction X. The first layer of battery cells 10 includes multiple first battery cells 11, and a first pressure relief mechanism 111 is provided on the side of the first battery cell 11 facing the isolation component 30. The second layer of battery cells 20 includes multiple second battery cells 21, and a second pressure relief mechanism 211 is provided on the side of the second battery cell 21 facing the isolation component 30. The isolation component 30 has a first collection chamber 31 inside, which is used to collect the emissions from the first battery cells 11 when the first pressure relief mechanism 111 is actuated and / or to collect the emissions from the second battery cells 21 when the second pressure relief mechanism 211 is actuated. The isolation component 30 has a first surface 32 facing the first layer battery cell 10 and a second surface 33 facing the second layer battery cell 20. The first surface 32 has a first through hole 321 communicating with the first collection cavity 31, and the second surface 33 has a second through hole 331 communicating with the first collection cavity 31.

[0262] The isolation component 30 includes a blocking member 34, which is disposed in the first collection cavity 31. Along the first direction X, the blocking member 34 is spaced apart from the first through hole 321 and spaced apart from the second through hole 331. The projection of the blocking member 34 covers the first through hole 321 and the second through hole 331.

[0263] The isolation component 30 includes a first plate 35 and a second plate 36 disposed opposite to each other along a first direction X, and a first collection cavity 31 located between the first plate 35 and the second plate 36. The first plate 35 includes a first surface 32 and a third surface 37 disposed opposite to each other along the first direction X, and the second plate 36 includes a second surface 33 and a fourth surface 38 disposed opposite to each other along the first direction X. The blocking component 34 includes a first guide component 341, which has a first end 341a and a second end 341b. The first end 341a is connected to the third surface 37, and the second end 341b is spaced apart from the first through hole 321. Along the first direction X, the projection of the first guide component 341 covers the first through hole 321. From the first end 341a to the second end 341b, the distance between the first guide component 341 and the third surface 37 gradually increases. The blocking member 34 also includes a second flow guide 342, which has a third end 342a and a fourth end 342b. The third end 342a is connected to the fourth surface 38, and the fourth end 342b is spaced apart from the second through hole 331. Along the first direction X, the projection of the second flow guide 342 covers the second through hole 331. From the third end 342a to the fourth end 342b, the distance between the second flow guide 342 and the fourth surface 38 gradually increases. In some embodiments, the fourth end 342b is connected to the second end 341b. The housing 40 includes two first sidewalls 43 arranged opposite each other along the second direction Y. The isolation member 30 connects the two first sidewalls 43. The second direction Y is perpendicular to the first direction X. Each first sidewall 43 includes a first wall portion 41 and a second wall portion 42 arranged along the first direction X. The first layer of battery cells 10 is located between the first wall portions 41 of the two first sidewalls 43, and the second layer of battery cells 20 is located between the second wall portions 42 of the two first sidewalls 43. A fifth collection chamber 431 is formed inside the first sidewall 43, and the fifth collection chamber 431 is connected to the first collection chamber 31. The battery 100 also includes a fifth pressure relief mechanism 53, which is disposed in the first sidewall 43 and is used to release the emissions in the fifth collection chamber 431.

[0264] According to the battery 100 of this application embodiment, the first guide member 341 can guide the discharge entering the first collection chamber 31 through the first through hole 321, reducing the risk that the discharge will flow toward the second through hole 331 and affect the second layer of battery cells 20; the second guide member 342 can guide the discharge entering the first collection chamber 31 through the second through hole 331, reducing the risk that the discharge will flow toward the first through hole 321 and affect the first layer of battery cells 10, thereby improving the reliability of the battery 100.

[0265] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery, characterized in that, include: The first layer of battery cells and the second layer of battery cells are stacked together along a first direction; An isolation component, along the first direction, is located between the first layer of battery cells and the second layer of battery cells; The first layer of battery cells includes multiple first battery cells, and a first pressure relief mechanism is provided on the side of the first battery cell facing the isolation component. The second layer of battery cells includes multiple second battery cells, and a second pressure relief mechanism is provided on the side of the second battery cell facing the isolation component. The isolation component has a first collection chamber inside, which is used to collect the emissions from the first battery cell when the first pressure relief mechanism is braked, and also to collect the emissions from the second battery cell when the second pressure relief mechanism is actuated.

2. The battery according to claim 1, characterized in that, The isolation component has a first surface facing the first layer of battery cells and a second surface facing the second layer of battery cells. The first surface has a first through hole communicating with the first collection cavity, and the first through hole is correspondingly disposed with the first pressure relief mechanism. The second surface has a second through hole communicating with the first collection cavity, and the second through hole is correspondingly disposed with the second pressure relief mechanism.

3. The battery according to claim 2, characterized in that, The isolation component includes a blocking member, which is disposed within the first collection cavity; Along the first direction, the blocking member is spaced apart from the first through hole, and the blocking member is spaced apart from the second through hole. The projection of the blocking member covers the first through hole and the second through hole.

4. The battery according to claim 3, characterized in that, The blocking member divides the first collection cavity into a first chamber and a second chamber that are independent of each other. The first through hole communicates with the first chamber, and the second through hole communicates with the second chamber.

5. The battery according to claim 4, characterized in that, The battery also includes a housing, the housing including two first walls disposed opposite each other along a second direction, the first layer of battery cells being disposed between the two first walls, the isolation component connecting the two first walls, and the second direction being perpendicular to the first direction; A second collection chamber is formed inside the first wall portion, and the second collection chamber is connected to the first chamber.

6. The battery according to claim 5, characterized in that, The battery further includes a third pressure relief mechanism disposed on at least one of the first wall portions, the third pressure relief mechanism being used to release the emissions within the second collection chamber.

7. The battery according to claim 5, characterized in that, The isolation component is integrally formed or welded to the two first wall portions.

8. The battery according to claim 5, characterized in that, The housing includes two second walls disposed opposite each other along the second direction, the second layer of battery cells is disposed between the two second walls, and the isolation component connects the two second walls; A third collection chamber is formed inside the second wall portion, and the third collection chamber is in communication with the second chamber.

9. The battery according to claim 8, characterized in that, The battery also includes a fourth pressure relief mechanism disposed on at least one of the second wall portions, the fourth pressure relief mechanism being used to release the emissions in the third collection chamber.

10. The battery according to claim 8, characterized in that, The isolation component is integrally formed or welded to the two second wall portions.

11. The battery according to claim 3, characterized in that, The isolation component includes a first plate and a second plate disposed opposite to each other along the first direction, and the first collection cavity is located between the first plate and the second plate; The first plate includes a first surface and a third surface disposed opposite to each other along the first direction, and the second plate includes a second surface and a fourth surface disposed opposite to each other along the first direction.

12. The battery according to claim 11, characterized in that, The blocking member includes a first guide member, which has a first end and a second end. The first end is connected to the third surface, and the second end is spaced apart from the first through hole. Along the first direction, the projection of the first guide member covers the first through hole.

13. The battery according to claim 12, characterized in that, From the first end to the second end, the distance between the first guide and the third surface gradually increases.

14. The battery according to claim 12, characterized in that, The blocking member further includes a second flow guide, which has a third end and a fourth end. The third end is connected to the fourth surface, and the fourth end is spaced apart from the second through hole. Along the first direction, the projection of the second flow guide covers the second through hole.

15. The battery according to claim 14, characterized in that, From the third end to the fourth end, the distance between the second guide and the fourth surface gradually increases.

16. The battery according to claim 12, characterized in that, The battery also includes a housing, the housing including two first sidewalls disposed opposite each other along a second direction, the isolation component connecting the two first sidewalls, and the second direction being perpendicular to the first direction; Each of the first sidewalls includes a first wall portion and a second wall portion arranged along the first direction, the first layer of battery cells being located between the first wall portions of the two first sidewalls, and the second layer of battery cells being located between the second wall portions of the two first sidewalls.

17. The battery according to claim 16, characterized in that, A fifth collection chamber is formed inside the first sidewall, and the fifth collection chamber is in communication with the first collection chamber.

18. The battery according to claim 17, characterized in that, The battery also includes a fifth pressure relief mechanism, which is disposed on the first side wall and is used to release the emissions in the fifth collection chamber.

19. The battery according to claim 8 or 16, characterized in that, The battery also includes: The first cover is connected to the two first wall portions; The second cover is connected to the two second wall portions; Along the first direction, the second cover is disposed opposite to the first cover, the isolation component is located between the first cover and the second cover, the first layer of battery cells is located between the first cover and the isolation component, and the second layer of battery cells is located between the second cover and the isolation component.

20. The battery according to claim 19, characterized in that, The first layer of battery cells is connected to the first cover, and the second layer of battery cells is connected to the second cover.

21. The battery according to claim 19, characterized in that, The first cover has a first flow channel inside which a heat exchange medium is contained, and the second cover has a second flow channel inside which a heat exchange medium is contained.

22. The battery according to claim 19, characterized in that, The first layer of battery cells includes multiple first battery cell groups; The battery also includes: The first separator is connected to the first cover and located between two adjacent first battery cell groups.

23. The battery according to claim 22, characterized in that, The first battery cell group is connected to the first separator.

24. The battery according to claim 22, characterized in that, The first separator is integrally formed or welded to the first cover.

25. The battery according to claim 22, characterized in that, The interior of the first partition has a third flow channel for accommodating the heat exchange medium.

26. The battery according to claim 19, characterized in that, The second layer of battery cells includes multiple groups of second battery cells; The battery also includes: The second separator is connected to the second cover and located between two adjacent second battery cell groups.

27. The battery according to claim 26, characterized in that, The second battery cell assembly is connected to the second separator.

28. The battery according to claim 26, characterized in that, The second separator is integrally formed or welded to the second cover.

29. The battery according to claim 26, characterized in that, The interior of the second partition has a fourth flow channel for accommodating the heat exchange medium.

30. The battery according to claim 8 or 16, characterized in that, The adjacent first wall portion and the second wall portion are integrally formed.

31. The battery according to claim 1, characterized in that, The first direction is parallel to the direction of gravity.

32. An electrical appliance, characterized in that, Includes the battery as described in any one of claims 1-31.

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