Battery and vehicle

Abstract

A battery (100) and a vehicle (200). The battery (100) comprises: a lower case (10); a temperature control assembly (20), covering the lower case (10) and defining an accommodating cavity (101) with the lower case (10), wherein the temperature control assembly (20) is used for forming at least part of a floor of the vehicle (200); and battery cells (40), accommodated in the accommodating cavity (101). In the battery (100), the temperature control assembly (20) and the lower case (10) define the accommodating cavity (101) to accommodate the battery cells (40), that is, the temperature control assembly (20) is an upper cover of the case, and the temperature control assembly (20) is used as part of the case structure, so that the accommodating cavity (101) does not need to accommodate the temperature control assembly (20), reducing the volume required by the accommodating cavity (101), thereby reducing the size of the case, reducing the space occupied by the case, and improving the integration level of the case.

Description

Batteries and vehicles

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 6, 2024, with application number 202410257178.8 and invention name “Battery and Vehicle,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the technical field of power batteries, and in particular to a battery and a vehicle. Background Art

[0003] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0004] Current batteries are large in size, occupy a large space, have low overall integration, and occupy a large amount of the vehicle's driving and passenger space, resulting in a smaller vehicle driving and passenger space. Summary of the Invention

[0005] In view of the above problems, the present application provides a battery and a vehicle to alleviate the problem of large battery size and low integration.

[0006] In a first aspect, an embodiment of the present application provides a battery for use in a vehicle, the battery comprising:

[0007] lower box;

[0008] A temperature control assembly is covered on the lower box body and forms a receiving cavity with the lower box body, and the temperature control assembly is used to form at least a portion of the floor of the vehicle;

[0009] The battery cell is accommodated in the accommodating cavity.

[0010] In the technical solution of this embodiment, a storage cavity is formed by the temperature control component and the lower box body to accommodate structures such as battery cells, that is, the temperature control component is the upper cover of the box body, and the temperature control component is used as a part of the box body structure, so that the storage cavity does not need to accommodate the temperature control component, reducing the volume required for the storage cavity, thereby reducing the volume of the battery, reducing the space occupied by the battery, and improving the degree of integration of the battery; at the same time, using the temperature control component as the top plate of the box body also enables the temperature control component to better exchange heat with the outside world, reducing the negative impact of the box body structure on heat dissipation, and enhancing the heat dissipation performance of the temperature control component; using the temperature control component as at least part of the floor of the vehicle to save the space required for the floor in the vehicle, thereby further reducing the battery's occupation of the vehicle space, expanding the vehicle space, and improving the integration of the battery and the vehicle.

[0011] In some embodiments, the temperature control assembly includes a first plate and a structural member, the first plate includes a first steel layer and a first aluminum layer stacked together, and the first steel layer is disposed on a side of the first aluminum layer facing away from the accommodating cavity;

[0012] The structural member includes an aluminum structure, and the aluminum structure is welded to the first aluminum layer;

[0013] A flow channel is formed between the first plate and the structural member, or a flow channel is formed in the structural member.

[0014] In the technical solution of this embodiment, the temperature control component includes a first plate body and a structural member, and the first plate body includes a first steel layer, so that the first plate body has strong strength, thereby being able to protect the battery cell and other structures in the accommodating cavity, and the strong first plate body can also be integrated with other structures as a fixed base, further reducing the space occupied by the box body, and at the same time improving the overall integration of the battery and the corresponding electrical equipment; the first plate body also includes a first aluminum layer, and the structural member is welded to the first aluminum layer to form a flow channel for the circulation of the heat exchange medium, and the flow channel can also be located on the side of the first plate body facing the accommodating cavity, so as to facilitate better heat exchange between the heat exchange medium and the accommodating cavity or the battery cell.

[0015] In some embodiments, the battery further includes a seat beam connected to the first steel layer.

[0016] In the technical solution of this embodiment, the seat beam is connected to the first plate so that the seat can be installed on the temperature control assembly through the seat beam to increase the integration of the battery and the vehicle body; at the same time, the setting of the seat beam can also help increase the strength of the temperature control assembly.

[0017] In some embodiments, the seat beam is a steel beam, and the seat beam is welded to the first steel layer.

[0018] The technical solution of this embodiment makes the seat beam a steel beam and welds the seat beam to the first steel layer, so that the seat beam can be more stably connected to the first steel layer, and can also simplify the connection structure and operation process between the seat beam and the first steel layer.

[0019] In some embodiments, the battery further includes a mounting member connected to the first steel layer.

[0020] In the technical solution of this embodiment, the mounting member is connected to the first plate, so that the battery can be connected to the vehicle body through the mounting member, thereby further increasing the integration of the battery and the vehicle body and facilitating better connection of the battery to the vehicle body.

[0021] In some embodiments, the mounting component is a steel structure, and the mounting component is welded to the first steel layer.

[0022] The technical solution of this embodiment makes the main material of the mount steel and welds the mount to the first steel layer so that the mount can be more stably connected to the first steel layer, while also simplifying the connection structure and operation process between the mount and the first steel layer.

[0023] In some embodiments, the structural member includes a second plate stacked on the first aluminum layer, the second plate includes a second aluminum layer, and the second aluminum layer is welded to the first aluminum layer;

[0024] The flow channel is formed between the first aluminum layer and the second aluminum layer.

[0025] In the technical solution of this embodiment, the structural member includes a second plate body, and the second plate body is connected to the first aluminum layer to form a flow channel between the first plate body and the second plate body, thereby facilitating heat exchange between the heat exchange medium and the accommodating cavity, and facilitating the temperature control component to control the temperature in the accommodating cavity; at the same time, the first steel layer is facing the outside to better protect structures such as battery cells, and also facilitates the temperature control component to be integrated with other structures as a fixed base.

[0026] In some embodiments, the first plate is provided with a groove in a direction away from the second plate, and the second plate covers the groove to form a flow channel.

[0027] In the technical solution of this embodiment, the first plate is provided with a groove in a direction away from the second plate, so that the second plate can cooperate with the groove to form a flow channel, thereby facilitating the circulation of the heat exchange medium.

[0028] In some embodiments, the side surface of the second plate facing the accommodating cavity is flat.

[0029] In the technical solution of this embodiment, the side of the second plate facing the accommodating cavity is flat, so as to reduce the occupation of the internal space of the accommodating cavity by the second plate and also reduce the negative impact of the second plate on the arrangement of battery cells.

[0030] In some embodiments, the structural member includes a flow channel tube, which is an aluminum structure, and the flow channel is formed in the flow channel tube.

[0031] In the technical solution of this embodiment, the structural member includes a flow channel tube, so that the flow channel can be formed in the flow channel tube, thereby facilitating heat exchange between the heat exchange medium and the accommodating cavity.

[0032] In some embodiments, the first plate body is provided with a groove in a direction away from the accommodating cavity, and at least a portion of the flow channel tube is accommodated in the groove.

[0033] In the technical solution of this embodiment, a groove is provided on the first plate, and at least part of the flow tube is accommodated in the groove, so as to reduce the space occupied by the flow tube in the accommodating cavity and facilitate the arrangement of the battery cells in the accommodating cavity.

[0034] In some embodiments, the surface of the flow conduit facing the accommodating cavity is flush with the surface of the first plate facing the accommodating cavity.

[0035] In the technical solution of this embodiment, the surface of the flow tube facing the accommodating cavity is flush with the surface of the first plate facing the accommodating cavity, so as to further reduce the space occupied by the flow tube in the accommodating cavity and facilitate the arrangement of battery cells in the accommodating cavity.

[0036] In some embodiments, the lower box body includes side beams, and the first plate body is welded to the side beams.

[0037] In the technical solution of this embodiment, the lower box body includes side beams, so that the temperature control component can be connected to the side beams, and thereby the temperature control component is connected to the lower box body, so as to facilitate the temperature control component and the lower box body to form a accommodating cavity; the first plate body and the side beams are welded to reduce the connecting parts between the first plate body and the side beams, thereby reducing the overall weight of the battery, simplifying the connection process, and allowing the structural parts to be in the accommodating cavity and protected by the side beams, thereby protecting the structural parts and the flow channel.

[0038] In some embodiments, the edge beam includes a third steel layer, and the first steel layer is welded to the third steel layer.

[0039] The technical solution of this embodiment provides some specific structures connecting the first plate body and the side beam, so that the side beam includes a third steel layer, so that the first steel layer of the first plate body can be more easily welded to the third steel layer, and the temperature control component and the side beam have a stronger connection strength and higher stability; at the same time, making the side beam include the third steel layer can also increase the strength of the side beam, so that the side beam can better protect the battery cell and other structures in the accommodating cavity.

[0040] In some embodiments, the first steel layer includes a main body and an edge portion arranged around the main body, the edge portion is bent relative to the main body and stacked on one side of the main body, and the bent edge portion is welded to the side beam.

[0041] The technical solution of this embodiment provides some specific structures for connecting the first plate body to the side beam, so that the first steel layer includes a main body and an edge portion arranged on the side of the main body, and the edge portion can be bent and cover part of the main body, and the bent edge portion can also be opposite to the side beam and connected to the side beam, so that the first steel layer can be connected to the third steel layer; at the same time, the bent edge portion can also clamp the part of the first aluminum layer close to the edge portion between the main body and the edge portion, so as to reduce the negative impact of the first aluminum layer on the connection between the first steel layer and the third steel layer, and can also play a role in protecting the first aluminum layer.

[0042] In some embodiments, the first steel layer includes a main body and an edge portion arranged around the main body, the first aluminum layer covers at least a portion of the main body and exposes the edge portion, and the first steel layer is welded to the third steel layer at the edge portion.

[0043] The technical solution of this embodiment provides other specific structures for connecting the first plate to the side beam, so that the first steel layer includes a main body and an edge portion arranged on the side of the main body, and the first aluminum layer only covers the main body and exposes the edge portion, so that the first steel layer is connected to the third steel layer at the edge portion; because the melting point of aluminum is lower than that of steel, making the area of ​​the first aluminum layer smaller than the area of ​​the first steel layer and exposing the edge portion can reduce damage to the first aluminum layer when the first steel layer is connected to the third steel layer, and can also reduce the negative impact of the first aluminum layer on the connection between the first steel layer and the third steel layer.

[0044] In some embodiments, the first steel layer is welded to the third steel layer at an edge portion to form a first sealing structure.

[0045] The technical solution of this embodiment further provides some specific structures for connecting the first plate to the side beam, so that the first steel layer is welded to the third steel layer, so that the connection part has higher mechanical strength, thereby improving the stability of the temperature control component connected to the side beam; at the same time, a first sealing structure is formed at the connection between the first steel layer and the third steel layer, so as to seal the connection between the temperature control component and the side beam through the first sealing structure, so as to improve the protection performance of the box body to the battery cell and other structures in the accommodating cavity, and reduce the occurrence of external impurities entering the accommodating cavity.

[0046] In some embodiments, the side beam includes a third steel layer and a third aluminum layer covering the third steel layer, and the first aluminum layer is welded to the third aluminum layer.

[0047] In the technical solution of this embodiment, the side beam includes a third steel layer and a third aluminum layer, so that the first aluminum layer can be more easily connected to the third aluminum layer, and the first aluminum layer and the third aluminum layer have a stronger connection strength and higher stability; at the same time, making the side beam include the third steel layer can also increase the strength of the side beam, so that the side beam can better protect the battery cell and other structures in the accommodating cavity.

[0048] In some embodiments, the first aluminum layer and the third aluminum layer are welded to form a second sealing structure.

[0049] The technical solution of this embodiment further provides some specific structures for connecting the first plate to the side beam, so that the first aluminum layer is welded to the third aluminum layer, so that the connection part has higher mechanical strength, thereby improving the stability of the temperature control component connected to the side beam; at the same time, a second sealing structure is formed at the connection between the first aluminum layer and the third aluminum layer, so that the connection between the temperature control component and the side beam is sealed by the second sealing structure, so as to improve the protection performance of the box body to the battery cell and other structures in the accommodating cavity, and reduce the occurrence of external impurities entering the accommodating cavity.

[0050] In some embodiments, the lower box further includes a structural beam accommodated in the accommodating cavity, and the temperature control assembly is connected to the structural beam by bolts.

[0051] In the technical solution of this embodiment, the temperature control component is connected to the structural beam by bolts to enhance the stability of the connection between the temperature control component and the lower box body; because the expansion of the battery cells in the accommodating cavity can easily cause the box body to deform, connecting the temperature control component to the structural beam by bolts can reduce the negative impact of the box body deformation on the connection strength between the temperature control component and the box body, thereby enabling the temperature control component to be more stably connected to the lower box body.

[0052] In some embodiments, a third sealing structure is provided between the end of the bolt away from the lower box and the temperature control assembly.

[0053] In the technical solution of this embodiment, a third sealing structure is provided at the end of the bolt away from the lower box body to seal the possible gap between the bolt and the first plate body, thereby reducing the occurrence of external impurities entering between the first plate body and the second plate body, and also reducing the occurrence of external impurities entering the accommodating cavity.

[0054] In some embodiments, the top of the battery cell is provided with an electrode terminal, and the bottom of the battery cell is opposite to the temperature control assembly.

[0055] In the technical solution of this embodiment, the bottom of the battery assembly is opposite to the temperature control assembly, so that the contact area between the temperature control assembly and the battery cell can be larger, and the battery cell can be more easily attached to the temperature control assembly, so that the temperature control assembly can better directly exchange heat with the battery cell.

[0056] In a second aspect, some embodiments of the present application provide a vehicle, comprising:

[0057] vehicle body; and

[0058] Some embodiments of the second aspect provide a battery, wherein the battery housing is connected to the bottom of the vehicle body, and the temperature control assembly forms at least a portion of the floor of the vehicle body.

[0059] In the technical solution of this embodiment, since the temperature control component has strong strength, the temperature control component as the floor of the vehicle body can not only meet the strength requirements of the vehicle body floor, but also reduce the internal structure of the vehicle body, thereby reducing the space occupied by structural parts and the weight of the vehicle, achieving the effect of increasing the interior space of the vehicle and reducing the weight of the vehicle.

[0060] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0062] FIG1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application.

[0063] FIG2 is a schematic diagram of an explosion of a battery provided in an embodiment of the present application.

[0064] FIG3 is a schematic diagram of an explosion of a battery cell provided in an embodiment of the present application.

[0065] FIG4 is an exploded schematic diagram of a box provided in an embodiment of the present application.

[0066] FIG5 is an exploded schematic diagram of the temperature control assembly in the box provided in an embodiment of the present application.

[0067] FIG6 is a schematic top view of the box provided in an embodiment of the present application.

[0068] FIG7 is a schematic cross-sectional view of the section AA in FIG6 provided in an embodiment of the present application.

[0069] FIG8 is a schematic cross-sectional view of point B in FIG7 provided in an embodiment of the present application.

[0070] FIG9 is a schematic cross-sectional view of point B in FIG7 provided by another embodiment of the present application.

[0071] FIG10 is a schematic cross-sectional view of point B in FIG7 provided by another embodiment of the present application.

[0072] FIG11 is a partially enlarged schematic diagram of point C in FIG8 provided in an embodiment of the present application.

[0073] FIG12 is a partial enlarged schematic diagram of point C in FIG8 provided by another embodiment of the present application.

[0074] FIG13 is a partially enlarged schematic diagram of point D in FIG7 provided in an embodiment of the present application.

[0075] The meanings of the marks in the figure are: 100, battery; 101, accommodating cavity; 10, lower box body; 11, side beam; 111, third steel layer; 112, third aluminum layer; 12, structural beam; 20, temperature control component; 201, flow channel; 21, first plate; 211, first steel layer; 2111, main body; 2112, edge portion; 212, first aluminum layer; 213, groove; 22, structural part; 221, second plate; 222, flow channel tube; 31, first sealing structure; 32, bolt; 33, second sealing structure; 34, third sealing structure; 40, battery cell; 41, end cover; 42, shell; 43, electrode assembly; 44, electrode terminal; 50, seat beam; 200, vehicle; 60, controller; 70, motor.

[0076] Modes for Carrying Out the Invention

[0077] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing example embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0079] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0080] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0081] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0082] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0083] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0084] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0085] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0086] In power batteries, the housing is a crucial component, housing battery cells, temperature control components (such as water-cooling plates), control devices, and other structures and components, and providing protection for these structures and components. Current housings typically consist of an upper cover and a lower housing, with the temperature control components located at the bottom of the battery cells. Some are also located near the larger sides of the battery cells, which can easily lead to a larger housing, which in turn results in larger battery cells and a larger space requirement. This also results in lower battery integration, heavier weight, and higher costs, making it difficult to integrate into a complete vehicle.

[0087] Based on the above considerations, in order to alleviate the problem of large battery volume, an embodiment of the present application provides a battery, in which the upper cover of the box is replaced by a temperature control component, and together with the lower box, a accommodating cavity is formed.

[0088] In such a box, the temperature control component is used as the upper cover, thereby saving the space required for the upper cover in the original box, and the box no longer needs to accommodate the temperature control component, reducing the storage space required inside the box, reducing the volume and space occupancy of the box, and improving the integration of the battery; at the same time, using the temperature control component as the upper cover of the box also enables the temperature control component to better exchange heat with the outside world, thereby increasing the heat dissipation performance of the temperature control component; using the temperature control component as at least part of the floor of the vehicle saves the space required for the floor in the vehicle, thereby further reducing the battery's occupation of the vehicle's space, expanding the vehicle's space, and improving the integration of the battery and the vehicle.

[0089] The battery disclosed in the embodiments of the present application can be used in electrical devices that use the battery as a power source or various energy storage systems that use the battery as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like, and the spacecraft can include airplanes, rockets, space shuttles, and spacecraft, and the like.

[0090] For the convenience of description, the following embodiments are described by taking a vehicle 200 as an example of an electrical device according to an embodiment of the present application.

[0091] Referring to Figure 1, Figure 1 is a schematic structural diagram of a vehicle 200 provided in some embodiments of the present application. The vehicle 200 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 200, and the battery 100 can be provided at the bottom, head or tail of the vehicle 200. The battery 100 can be used to power the vehicle 200. For example, the battery 100 can serve as an operating power source for the vehicle 200. The vehicle 200 may also include a controller 60 and a motor 70. The controller 60 is used to control the battery 100 to power the motor 70, for example, for starting, navigating and driving the vehicle 200.

[0092] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 200 , but also as a driving power source for the vehicle 200 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 200 .

[0093] Referring to Figure 2, Figure 2 is an exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a housing and battery cells 40, which are housed within the housing. The housing provides a storage space for the battery cells 40 and can have various structures. In some embodiments, the housing can include an upper housing and a lower housing 10, which cover each other and together define a storage space for the battery cells 40. The lower housing 10 can be a hollow structure with one end open, and the upper housing can be a plate-like structure, with the upper housing covering the open side of the lower housing 10, so that the upper and lower housings 10 together define a storage space. Alternatively, both the upper and lower housings 10 can be hollow structures with one end open, with the open side of the upper housing covering the open side of the lower housing 10. Of course, the housing formed by the upper and lower housings 10 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0094] In the battery 100, there may be multiple battery cells 40, and the multiple battery cells 40 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 40. The multiple battery cells 40 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery 100 structure may be contained within a housing. Of course, the battery 100 may also be a battery 100 module structure formed by first connecting multiple battery cells 40 in series, in parallel, or in a hybrid connection, and then the multiple battery 100 modules may be connected in series, in parallel, or in a hybrid connection to form an entire battery 100 structure, and then contained within a housing. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for electrically connecting the multiple battery cells 40.

[0095] Each battery cell 40 may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 40 may be cylindrical, flat, rectangular, or in other shapes.

[0096] Referring to Figure 3, Figure 3 is a schematic diagram of the exploded structure of a battery cell 40 provided in some embodiments of the present application. A battery cell 40 is the smallest unit that makes up a battery 100. As shown, a battery cell 40 includes an end cap 41, a housing 42, an electrode assembly 43, and other functional components.

[0097] The end cap 41 is a component that covers the opening of the housing 42 to isolate the internal environment of the battery cell 40 from the external environment. The shape of the end cap 41 can be adapted to the shape of the housing 42 to match the housing 42. Optionally, the end cap 41 can be made of a material with a certain hardness and strength (such as an aluminum alloy). This prevents the end cap 41 from deforming when subjected to compression or collision, thereby providing the battery cell 40 with greater structural strength and improved safety. The end cap 41 can be provided with functional components such as electrode terminals 44. The electrode terminals 44 can be used to electrically connect to the electrode assembly 43 to output or input electrical energy to the battery cell 40. In some embodiments, the end cap 41 can also be provided with a pressure relief mechanism for relieving internal pressure when the internal pressure or temperature of the battery cell 40 reaches a threshold. The end cap 41 can also be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this embodiment of the present application does not impose any specific limitations on this. In some embodiments, an insulating member may be provided inside the end cap 41 to isolate the electrical connection components in the housing 42 from the end cap 41 to reduce the risk of short circuit.

[0098] The housing 42 is a component that cooperates with the end cap 41 to form the internal environment of the battery cell 40. This internal environment can be used to accommodate the electrode assembly 43, electrolyte, and other components. The housing 42 and end cap 41 can be separate components. An opening can be provided in the housing 42, and the end cap 41 is placed over the opening to form the internal environment of the battery cell 40. Alternatively, the end cap 41 and housing 42 can be integrated. Specifically, the end cap 41 and housing 42 can form a common connection surface before other components are inserted into the housing. When the interior of the housing 42 needs to be enclosed, the end cap 41 is placed over the housing 42. The housing 42 can have a variety of shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, or a hexagonal prism. Specifically, the shape of the housing 42 can be determined based on the specific shape and size of the electrode assembly 43. The housing 42 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this embodiment of the present application does not impose any particular limitations on this.

[0099] The electrode assembly 43 is a component in the battery cell 40 where electrochemical reactions occur. One or more electrode assemblies 43 may be contained in the housing 42. The electrode assembly 43 is mainly formed by winding or stacking positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active materials constitute the main body of the electrode assembly 43, and the parts of the positive and negative electrode sheets without active materials each constitute a tab. The positive and negative electrode tabs may be located together at one end of the main body or respectively at both ends of the main body. During the charge and discharge process of the battery 100, the positive electrode active material and the negative electrode active material react with the electrolyte, and the tabs are connected to the electrode terminals 44 to form a current loop.

[0100] In a first aspect, some embodiments of the present application provide a battery 100. Referring to Figures 4 to 7, in Figures 4 and 5, the direction of the X-axis is the length direction of the battery 100, the direction of the Y-axis is the width direction of the battery 100, and the direction of the Z-axis is the height direction of the battery 100.

[0101] In some embodiments of the present application, the battery 100 is applied to the vehicle 200, and the battery 100 includes: a lower box body 10, a temperature control component 20 and a battery cell 40; wherein, the temperature control component 20 is covered on the lower box body 10 and forms a accommodating cavity 101 with the lower box body 10, and the temperature control component 20 is used for heat exchange with the accommodating cavity 101 and for forming at least part of the floor of the vehicle 200; the battery cell 40 is accommodated in the accommodating cavity 101.

[0102] The lower box body 10 refers to the structure in the box body used to carry other structures and devices such as battery cells 40. The lower box body 10 can be a hollow structure with an open side, so that the temperature control component 20 can be covered on the lower box body 10 and form a accommodating cavity 101; the shape of the lower box body 10 can be rectangular, cylindrical or other shapes; the material of the lower box body 10 can include metal or other materials.

[0103] The accommodating cavity 101 refers to the space inside the box of the battery 100 for accommodating structures such as the battery cell 40. The accommodating cavity 101 is surrounded by the temperature control component 20 and the lower box 10. The shape of the accommodating cavity 101 is affected by the shapes of the temperature control component 20 and the lower box 10. The specific shape of the accommodating cavity 101 can be a rectangular parallelepiped, cylindrical or other shapes.

[0104] The temperature control component 20 refers to the structure in the battery 100 used to control the temperature inside the accommodating cavity 101; because the battery cell 40 is prone to generate a large amount of heat during use, and it is easy to cause the temperature inside the accommodating cavity 101 to be high, which is not conducive to the long-term use of the battery cell 40, the temperature control component 20 is mainly used to reduce the temperature inside the accommodating cavity 101, but under certain working conditions, the temperature control component 20 can also play a role in increasing the temperature inside the accommodating cavity 101.

[0105] The temperature control assembly 20 is covered on the lower box body 10 , that is, the temperature control assembly 20 can serve as the top structure of the box body of the battery 100 , and the lower box body 10 serves as the bottom structure of the box body. The temperature control assembly 20 and the lower box body 10 form an accommodating cavity 101 .

[0106] In addition to serving as the top structure of the box, the temperature control assembly 20 can also serve as at least part of the floor of the vehicle 200; the floor of the vehicle 200 refers to the structure in the vehicle 200 that carries cargo and passengers, and the floor can also be used to soundproof and reduce noise, and protect the passengers; the temperature control assembly 20 serving as the floor of the vehicle 200 means that the temperature control assembly 20 faces the interior of the vehicle body and can be used to carry passengers and cargo for the driver or passengers to step on, and can also be used to carry cargo, etc. At the same time, the temperature control assembly 20 as a floor can also provide a fixed foundation for structures such as seats and structural beams.

[0107] The temperature control component 20 can at least serve as a partial floor of the vehicle 200, that is, the temperature control component 20 can serve as the entire floor of the vehicle 200. In this case, the vehicle 200 does not need to have an additional floor structure. The temperature control component 20 can also serve as a partial floor of the vehicle 200. In this case, a partial floor structure can be set on the vehicle 200, and the temperature control component 20 can form a complete vehicle 200 floor together with the partial floor structure of the vehicle 200.

[0108] In this embodiment, the temperature control component 20 and the lower box body 10 are used to form a accommodating cavity 101 to accommodate structures such as the battery cell 40, that is, the temperature control component 20 is the top plate of the box body, so that the temperature control component 20 is used as a part of the box body structure, so that the accommodating cavity 101 does not need to accommodate the temperature control component 20, reducing the volume required for the accommodating cavity 101, thereby reducing the volume of the battery 100, reducing the space occupied by the battery 100, and improving the integration level of the battery 100; at the same time, using the temperature control component 20 as the top plate of the box body also enables the temperature control component 20 to better exchange heat with the outside world, reducing the negative impact of the box body structure on heat dissipation, and enhancing the heat dissipation performance of the temperature control component 20; using the temperature control component 20 as at least part of the floor of the vehicle 200 to save the space required for the floor of the vehicle 200, thereby further reducing the space occupied by the battery 100 in the vehicle 200, expanding the space of the vehicle 200, and improving the integration level of the battery 100 and the vehicle 200.

[0109] According to some embodiments of the present application, referring to FIG4 , in the figure, the direction of the X-axis is also the length direction of the temperature control component 20 ; the direction of the Y-axis is also the width direction of the temperature control component 20 ; and the direction of the Z-axis is also the height direction of the temperature control component 20 .

[0110] In some embodiments of the present application, the temperature control component 20 includes a first plate body 21 and a structural member 22, the first plate body 21 includes a first steel layer 211 and a first aluminum layer 212 that are stacked, and the first steel layer 211 is arranged on the side of the first aluminum layer 212 away from the accommodating cavity 101; the structural member 22 includes an aluminum structure, and the aluminum structure is welded to the first aluminum layer 212; a flow channel 201 is formed between the first plate body 21 and the structural member 22, or a flow channel 201 is formed in the structural member 22.

[0111] The first plate body 21 refers to the structure constituting the temperature control component 20; the first plate body 21 can be a flat plate structure, or a curved plate structure or a plate structure of other shapes; the shape of the first plate body 21 can be square, circular or other shapes, and the shape of the first plate body 21 can affect the shape of the temperature control component 20; because the temperature control component 20 and the lower box body 10 form a accommodating cavity 101, the shape of the first plate body 21 should be coordinated with the shape of the lower box body 10 to form the accommodating cavity 101 and separate the accommodating cavity 101 from the external environment.

[0112] The structural member 22 refers to the structure that constitutes the temperature control component 20; the structural member 22 can be a plate-like structure, or a pipe-like structure or other structure; according to the specific structure of the structural member 22, its shape can be a square plate, a circular plate or other shapes, or it can be a square tube, a circular tube or other shapes.

[0113] An aluminum structure refers to a structure in which the main material of the structural member 22 is aluminum. The material of the aluminum structure may include only aluminum, or may include other materials and make the specific gravity of aluminum greater than the specific gravity of other materials. According to the shape of the structural member 22, the aluminum structure may be a plate-like structure, such as a flat plate or a curved plate, etc., or a pipe-like structure, such as a square tube, a round tube, etc. It can be understood that in addition to the aluminum structure, the structural member 22 may also include structures of other materials and be connected to the aluminum structure.

[0114] The flow channel 201 refers to a channel structure in the temperature control component 20 for the flow of heat exchange medium; the flow channel 201 can be formed between the first plate body 21 and the structural member 22, for example, the flow channel 201 can be formed by enclosing the first plate body 21 and the structural member 22; the flow channel 201 can also be formed inside the structural member 22, for example, the flow channel 201 is opened inside the structural member 22 and connects one end, two ends or multiple ends to the outside world.

[0115] The heat exchange medium flowing in the flow channel 201 can exchange heat with the accommodating cavity 101, thereby achieving the effect of controlling the temperature of the accommodating cavity 101 and the battery cell 40. The heat exchange medium may include gas, liquid or solid, for example, the heat exchange medium may include water, air, etc.

[0116] There can be only one flow channel 201, or there can be two or more flow channels 201. Multiple flow channels 201 can be connected in series, in parallel or in a mixed manner. Series connection can refer to the connection method between multiple flow channels 201 with different flow directions of the heat exchange medium. Parallel connection can refer to the connection method between multiple flow channels 201 with the same flow direction of the heat exchange medium. Mixed connection refers to both series and parallel connection in multiple flow channels 201. This setting enables the flow channel 201 to cover a larger area, so that the heat exchange medium can better exchange heat with the accommodating cavity 101.

[0117] The first steel layer 211 refers to a layered structure in which the main material of the first plate body 21 is steel. The material of the first steel layer 211 may include only steel (carbon and iron), or may include other materials and make the specific gravity of steel greater than that of other materials.

[0118] The first aluminum layer 212 refers to a layered structure in which the main material of the first plate 21 is aluminum. The material of the first aluminum layer 212 may include only aluminum, or may include other materials with a specific gravity of aluminum greater than that of other materials.

[0119] The first steel layer 211 and the first aluminum layer 212 are stacked, and the first steel layer 211 and the first aluminum layer 212 can be compounded to form the first plate body 21; the first steel layer 211 and the first aluminum layer 212 can be compounded to form the first plate body 21 through a rolling process, or can be compounded by explosive compounding, adhesive compounding or other methods; it can be understood that in addition to the first steel layer 211 and the first aluminum layer 212, the first plate body 21 can also include a layered structure of other materials and be compounded with the first steel layer 211 and the first aluminum layer 212.

[0120] The first steel layer 211 is disposed on a side of the first aluminum layer 212 facing away from the accommodating cavity 101 , that is, the first steel layer 211 faces the outside, while the first aluminum layer 212 faces the accommodating cavity 101 .

[0121] Due to the high strength of the first steel layer 211, this arrangement enables the first steel layer 211 to be used to carry passengers and cargo, and also to provide a fixed foundation for other structures; making the first aluminum layer 212 face the inside of the accommodating cavity 101 is used to place the structural member 22 in the accommodating cavity 101; the aluminum structure of the structural member 22 is welded to the first aluminum layer 212 to connect the structural member 22 to the first plate body 21, and at the same time, the aluminum structure and the first aluminum layer 212 are made of the same or substantially the same material, and the two have similar melting points, so that the aluminum structure can be more easily welded to the first aluminum layer 212, and the connection between the two has stronger mechanical strength and stability.

[0122] In this embodiment, the first plate body 21 includes a first steel layer 211, so that the first plate body 21 has strong strength, thereby being able to protect structures such as the battery cell 40 in the accommodating cavity 101, and the strong first plate body 21 can also be integrated with other structures as a fixed base, further reducing the space occupied by the battery 100, and at the same time improving the overall integration of the battery 100 and the corresponding electrical equipment; the first plate body 21 also includes a first aluminum layer 212, and the structural member 22 is welded to the first aluminum layer 212 to form a flow channel 201 for the circulation of heat exchange medium and which is corrosion-resistant, and the flow channel 201 can also be located on the side of the first plate body 21 facing the accommodating cavity 101, so as to facilitate better heat exchange between the heat exchange medium and the accommodating cavity 101 or the battery cell 40.

[0123] In some embodiments, a filler is provided between the aluminum structure and the first aluminum layer 212, and the filler is welded to the aluminum structure and the first aluminum layer 212. For example, the aluminum structure can be connected to the first aluminum layer 212 by a brazing process, and the filler is the brazing material required for brazing; for another example, the aluminum structure can be connected to the first aluminum layer 212 by a laser wire welding process, and the filler is the laser wire welding material.

[0124] The brazing process may include iron brazing, flame brazing, furnace brazing, or other brazing methods. In some embodiments, the first aluminum layer 212 and the aluminum structure are connected via the iron brazing process.

[0125] The brazing process has a fast heating speed, simple operation and high efficiency; the heating is concentrated and uniform, and the heat-affected zone is small, so that the deformation of the first aluminum layer 212 and the aluminum structure is also small; the required heating temperature is low, and the negative impact on the first aluminum layer 212 and the aluminum structure is small; the welding joint is relatively flat and has good airtightness, so as to better achieve the sealing between the first aluminum layer 212 and the second aluminum layer.

[0126] In other embodiments, the aluminum structure is welded to the first aluminum layer 212 , that is, the aluminum structure is connected to the first aluminum layer 212 through a fusion welding process.

[0127] The fusion welding process may include arc welding, electron beam welding, laser welding or other fusion welding methods; in some embodiments, the first aluminum layer 212 and the aluminum structure are connected by a laser welding process.

[0128] The welding depth of the fusion welding process is large, and the mechanical strength of the weld is high; the heating zone is small and the heat-affected zone is also small, so that the deformation of the first aluminum layer 212 and the aluminum structure is also small; non-contact long-distance welding can be performed, which is more flexible and can adapt to various complex welding positions; the weld has good airtightness, so as to better achieve the sealing between the first aluminum layer 212 and the aluminum structure.

[0129] 4 , in some embodiments, the battery 100 further includes a seat beam 50 , which is used to connect a seat of the vehicle 200 , and the seat beam 50 is connected to the first steel layer 211 .

[0130] The seat beam 50 refers to a structure in the battery 100 for fixing the seat of the vehicle 200. The seat beam 50 may be a box beam, an I-beam, or a beam structure of other shapes. The main material of the seat beam 50 is usually steel, and the material of the seat beam 50 may also include other materials.

[0131] The seat beam 50 may be welded to the first steel layer 211 , or may be connected to the first steel layer 211 by gluing, screwing or other means.

[0132] Because the material of the seat beam 50 is the same or substantially the same as that of the first steel layer 211 , connecting the seat beam 50 to the first steel layer 211 can reduce the deformation difference of the connecting portion of the seat beam 50 and the first steel layer 211 when the external environment changes (temperature increase, temperature decrease, etc.), thereby improving the stability of the connecting portion of the seat beam 50 and the first steel layer 211.

[0133] In this embodiment, the seat beam 50 is connected to the first plate 21 so that the seat can be installed on the temperature control assembly 20 through the seat beam 50 to increase the integration of the battery 100 and the vehicle 200. At the same time, the setting of the seat beam 50 can also help increase the strength of the temperature control assembly 20 to reduce the deformation of the central part of the temperature control assembly 20 due to lack of support.

[0134] In some embodiments, the battery 100 further includes a mounting member connected to the first steel layer 211 .

[0135] The mounting part refers to a structure used to mount the battery 100 on the vehicle 200. The mounting part can be a buckle, a lug, or other structures. The main material of the mounting part is usually steel, and the material of the mounting part can also include other materials.

[0136] The mounting member may be welded to the first steel layer 211 , or may be connected to the first steel layer 211 by gluing, screwing or other means.

[0137] Similar to the seat beam 50 , since the material of the mounting member is the same or substantially the same as the material of the first steel layer 211 , connecting the mounting member to the first steel layer 211 can improve the stability of the connection portion between the mounting member and the first steel layer 211 .

[0138] In some embodiments, the seat beam 50 is a steel beam, and the seat beam 50 is welded to the first steel layer 211 ; the mounting component is a steel structure, and the mounting component is welded to the first steel layer 211 .

[0139] A steel beam refers to a beam structure whose main material is steel. The material may include only steel or other materials and the specific gravity of steel may be greater than that of other materials.

[0140] The seat beam 50 is a steel beam, which enables the seat beam 50 and the first steel layer 211 to be made of the same or substantially the same material, and both can have similar melting points. Therefore, welding can make the connection between the seat beam 50 and the first steel layer 211 have higher mechanical strength. Compared with connecting by screwing or other methods, welding operation is simpler and lighter.

[0141] The mounting part is a steel structure, that is, the material of the mounting part may include only steel, or may include other materials and make the specific gravity of steel greater than the specific gravity of other materials.

[0142] Similar to the seat beam 50, the mounting part is a steel structure, which enables the mounting part and the first steel layer 211 to be made of the same or substantially the same material, and both can have similar melting points. Therefore, the mounting part is welded to the first steel layer 211 to improve the mechanical strength of the connection between the two, simplify the operation steps, and reduce the weight of the connection structure.

[0143] The seat beam 50 , the mounting member and the first steel layer 211 may be welded by fusion welding, pressure welding or brazing.

[0144] In this embodiment, the seat beam 50 is welded to the first steel layer 211, so that the seat beam 50 can be more stably connected to the first steel layer 211, and the connection structure and operation process between the seat beam 50 and the first steel layer 211 can be simplified; the mounting part is welded to the first steel layer 211, so that the mounting part can be more stably connected to the first steel layer 211, and the connection structure and operation process between the mounting part and the first steel layer 211 can be simplified.

[0145] According to some embodiments of the present application, referring to Figures 4 to 8, the structural member 22 includes a second plate body 221 stacked on the first aluminum layer 212, the second plate body 221 includes a second aluminum layer, and the second aluminum layer is welded to the first aluminum layer 212; the flow channel 201 is formed between the first aluminum layer 212 and the second plate body 221.

[0146] The second plate body 221 refers to the plate-like structure that constitutes the temperature control component 20; the second plate body 221 can be a flat plate-like structure, or a curved plate-like structure or a plate-like structure of other shapes; the shape of the second plate body 221 can be square, circular or other shapes, and the shape of the second plate body 221 can affect the shape of the temperature control component 20; because the temperature control component 20 and the lower box body 10 form a accommodating cavity 101, the shape of the second plate body 221 should be matched with the shape of the lower box body 10 to form the accommodating cavity 101 and separate the accommodating cavity 101 from the external environment.

[0147] When the structural member 22 includes the second plate 221 , the aluminum structure is the second aluminum layer, so that the second plate 221 can be welded to the first aluminum layer 212 of the first plate 21 through the second aluminum layer. In this case, the structural member 22 may also include a steel layer or other structures.

[0148] The flow channel 201 is formed between the first aluminum layer 212 and the second aluminum layer, that is, the flow channel 201 is formed by enclosing the second plate 221 and the first plate 21; for example, a groove can be set on either the first plate 21 or the second plate 221, and the other of the two is covered on the groove to form the flow channel 201; for another example, either or both of the first plate 21 and the second plate 221 can be bent into a groove-shaped structure and covered with each other to form the flow channel 201; it can be understood that the first plate 21 and the second plate 221 can also be surrounded by other methods to form the flow channel 201, and are not limited to the above two methods.

[0149] 8 , in some embodiments, the first plate 21 is provided with a groove 213 in a direction away from the second plate 221 , and the second plate 221 covers the groove 213 to form a flow channel 201 .

[0150] The groove 213 is a groove structure formed on the first plate 21 away from the second plate 221 , with the opening of the groove 213 facing the second plate 221 . The groove 213 may be a semicircular groove, a rectangular groove, a trapezoidal groove or a groove of other shapes.

[0151] After the second plate 221 is connected to the first plate 21 , it can cover the groove 213 and make the groove 213 a sealed channel structure. At this time, the second plate 221 and the groove 213 can form a flow channel 201, and the heat exchange medium can flow in the groove 213.

[0152] That is, when the flow channel 201 is formed between the second plate body 221 and the first plate body 21 , the groove 213 is mainly used to cooperate with the second plate body 221 to form the flow channel for the heat exchange medium to flow.

[0153] This arrangement can make the structure of the temperature control assembly 20 more concise and can reduce the overall weight of the temperature control assembly 20.

[0154] 8 , in some embodiments, the side surface of the second plate 221 facing the accommodating cavity 101 is a plane.

[0155] The side surface of the second plate body 221 facing the accommodating cavity 101 is a plane. In this case, the side surface of the second plate body 221 facing the first plate body 21 can be a plane, or an uneven surface or a curved surface.

[0156] Making the side of the second plate 221 facing the accommodating cavity 101 flat can reduce the space occupied by the second plate 221 in the accommodating cavity 101 and facilitate the arrangement of structures such as the battery cells 40 in the accommodating cavity 101 .

[0157] According to some embodiments of the present application, referring to FIG. 4 to FIG. 7 and FIG. 9 , the structural member 22 includes a flow channel tube 222 . The flow channel tube 222 is an aluminum structure, and the flow channel 201 is formed in the flow channel tube 222 .

[0158] The flow tube 222 refers to the pipeline structure that constitutes the temperature control component 20; the shape of the flow tube 222 can be square, circular or other shapes; the flow channel 201 is formed in the flow tube 222 for the flow of heat exchange medium.

[0159] When the structural component 22 includes the flow tube 222 , the flow tube 222 is an aluminum structure. In this case, the flow tube 222 is directly welded to the first aluminum layer 212 .

[0160] 8 , in some embodiments, the first plate 21 is provided with a groove 213 in a direction away from the accommodating cavity 101 , and at least a portion of the flow conduit 222 is accommodated in the groove 213 .

[0161] The groove 213 refers to a groove structure recessed on the first plate 21 in a direction away from the accommodating cavity 101 , with the opening of the groove 213 facing the accommodating cavity 101 ; the groove 213 may be a semicircular groove, a rectangular groove, a trapezoidal groove or a groove of other shapes.

[0162] After the flow tube 222 is connected to the first plate 21 , at least a portion of the flow tube 222 can be accommodated in the groove 213 . For example, the flow tube 222 can be completely accommodated in the groove 213 , or partially accommodated in the groove 213 while the other portion protrudes from the groove 213 .

[0163] That is, when the flow channel 201 is formed in the flow channel tube 222 , the groove 213 is mainly used to accommodate the flow channel tube 222 .

[0164] In this embodiment, at least a portion of the flow conduit 222 is accommodated in the groove 213 to reduce the space occupied by the flow conduit 222 in the accommodating cavity 101 and facilitate the arrangement of the battery cells 40 in the accommodating cavity 101 .

[0165] In some embodiments, the surface of the flow conduit 222 facing the accommodating cavity 101 is flush with the surface of the first plate 21 facing the accommodating cavity 101 .

[0166] The surface of the flow tube 222 facing the accommodating cavity 101 is flush with the surface of the first plate 21 facing the accommodating cavity 101, which means that the flow tube 222 is completely accommodated in the groove 213. This setting allows the side of the temperature control component 20 facing the accommodating cavity 101 to be relatively flat, thereby reducing the space occupied by the temperature control component 20 in the accommodating cavity 101. At the same time, it can also reduce the restrictions of the temperature control component 20 on the installation of the battery cell 40, making it easier for the battery cell 40 to be installed and arranged in the required manner.

[0167] At the same time, this arrangement also prevents the protrusion height of the groove 213 on the side of the plate away from the flow channel tube 222 from being too high, thereby reducing the external space occupied by the temperature control component 20 and facilitating the installation of the battery 100 at the desired location.

[0168] According to some embodiments of the present application, referring to FIG. 6 to FIG. 12 , the lower box body 10 includes a side beam 11 , and the first plate body 21 is welded to the side beam 11 .

[0169] The side beam 11 refers to a structure in the lower box body 10 that supports and protects its peripheral sides; the side beam 11 can be a box beam, an I-beam or a beam body of other shapes; the cross-sectional shape of the side beam 11 can be square or other shapes; when the side beam 11 is a box beam, the side beam 11 can be formed by rolling, or by local rolling combined with arc welding, or the side beam 11 can be formed by other methods.

[0170] The first plate 21 is welded to the side beam 11 and can cover the lower box body 10 to form a receiving cavity 101 isolated from the outside.

[0171] Welding the first plate 21 to the side beam 11 can reduce the number of connectors connecting the first plate 21 and the side beam 11 , thereby reducing the overall weight of the battery 100 and simplifying the connection process between the first plate 21 and the side beam 11 .

[0172] The first plate 21 welded to the side beam 11 can also place the structural member 22 in the accommodating cavity 101, so that the structural member 22 is protected by the side beam 11, reducing the damage and cracking of the structural member 22 caused by external influences, thereby making the temperature control component 20 have higher stability and reducing the occurrence of leakage of the heat exchange medium in the temperature control component 20 due to damage to the structural member 22.

[0173] The first plate 21 can be connected to the side beam 11 in a variety of ways. In some embodiments, the main material of the side beam 11 is steel. In this case, the first steel layer 211 can be welded to the side beam 11 to achieve the connection between the first plate 21 and the side beam 11; in other embodiments, the first plate 21 can be connected to the side beam 11 by bolts 32. In this case, a sealing ring can be further provided between the first plate 21 and the side beam 11 to improve the sealing performance between the first plate 21 and the side beam 11; in yet other embodiments, the first plate 21 can also be bonded to the side beam 11; it is understandable that the first plate 21 can also be connected to the side beam 11 in other ways, not limited to the above-mentioned ways.

[0174] 8 and 11 , in some embodiments, the side beam 11 includes a third steel layer 111 , and the first steel layer 211 is welded to the third steel layer 111 .

[0175] The third steel layer 111 refers to a layered structure in which the main material of the side beam 11 is steel. The material of the third steel layer 111 may include only steel, or may include other materials and make the specific gravity of steel greater than the specific gravity of other materials. The side beam 11 may be a box beam, an I-beam, or a beam structure of other shapes. When the side beam 11 is a box beam, the layered third steel layer 111 may be rolled to form the side beam 11.

[0176] Since the main function of the side beam 11 is to provide support for the temperature control component 20 and to provide protection for structures such as the battery cell 40 in the accommodating cavity 101, the strength of the side beam 11 should be relatively high. Including the third steel layer 111 in the side beam 11 can improve the strength of the side beam 11 to better play a supporting and protective role.

[0177] By welding the first steel layer 211 of the first plate body 21 to the third steel layer 111, the material of the connection point between the first plate body 21 and the side beam 11 can be made the same or approximately the same, so that the first steel layer 211 and the third steel layer 111 have the same or approximately the same deformation under different working environments. For example, the deformation of the first steel layer 211 and the third steel layer 111 in high temperature or low temperature environments is approximately the same, thereby reducing the force exerted on the connection structure between the first steel layer 211 and the third steel layer 111, reducing the negative impact on the connection structure between the first steel layer 211 and the third steel layer 111, and also indirectly increasing the mechanical strength of the connection between the first steel layer 211 and the third steel layer 111.

[0178] Referring to Figure 10, in some embodiments, the first steel layer 211 includes a main body 2111 and an edge portion 2112 arranged on the periphery of the main body 2111. The edge portion 2112 is bent relative to the main body 2111 and stacked on one side of the main body 2111. The bent edge portion 2112 is welded to the side beam 11.

[0179] The main body 2111 refers to the central portion of the first steel layer 211, and the edge portion 2112 refers to the edge portion of the first steel layer 211. The edge portion 2112 is located on the periphery of the main body 2111 and surrounds the main body 2111. The main body 2111 and the edge portion 2112 can be simply two parts set on the first steel layer 211, or can be defined by structures such as notches. The main body 2111 and the edge portion 2112 can be integrally formed, or can be two independent structures connected by welding, gluing, etc.

[0180] Because the second plate body 221 is arranged on the side of the first plate body 21 facing the accommodating cavity 101, according to the size of the second plate body 221, the bent edge portion 2112 can clamp part of the second plate body 221 between the main body 2111 and the edge portion 2112, and the bent edge portion 2112 can also abut against the second plate body 221 or be spaced apart from the second plate body 221.

[0181] The edge portion 2112 is bent relative to the main body 2111, and the bent edge portion 2112 can be stacked on one side of the main body 2111 in the thickness direction (Z) of the first steel layer 211, and cover part of the main body 2111, specifically covering the area of ​​the main body 2111 close to the edge portion 2112; the bent edge portion 2112 can face the side beam 11 and be connected to the side beam 11. Because the first aluminum layer 212 faces the accommodating cavity 101, that is, the first aluminum layer 212 faces the side beam 11, the bent edge portion 2112 can face the side beam 11, that is, the part of the first aluminum layer 212 close to the edge portion 2112 can be clamped by the edge portion 2112 between the edge portion 2112 and the main body 2111.

[0182] In such a first plate body 21, the bending of the edge portion 2112 can make the side of the edge portion 2112 away from the first aluminum layer 212 directly opposite to the side beam 11, so that the first steel layer 211 can be directly welded to the third steel layer 111, thereby making the connection strength between the first plate body 21 and the side beam 11 stronger; the bent edge portion 2112 can also clamp the first aluminum layer 212 between the main body 2111 and the edge portion 2112, thereby reducing the interference of the first aluminum layer 212 on the welding of the first steel layer 211 and the third steel layer 111, and also protecting the first aluminum layer 212.

[0183] 8 and 11 , in some embodiments, the first steel layer 211 includes a main body 2111 and an edge portion 2112 disposed around the main body 2111 . The first aluminum layer 212 covers at least a portion of the main body 2111 and exposes the edge portion 2112 . The first steel layer 211 is welded to the third steel layer 111 at the edge portion 2112 .

[0184] The main body portion 2111 refers to the central portion of the first steel layer 211 , and the edge portion 2112 refers to the edge portion of the first steel layer 211 . The edge portion 2112 is located on the peripheral side of the main body portion 2111 and surrounds the main body portion 2111 .

[0185] The first aluminum layer 212 covers the main body 2111 and exposes the edge portion 2112, that is, the edge portion 2112 is not covered by the first aluminum layer 212 and can be directly opposite to the side beam 11, so that the edge portion 2112 is directly connected to the third steel layer 111, thereby enabling the first steel layer 211 to be connected to the third steel layer 111 through the edge portion 2112.

[0186] The first aluminum layer 212 can expose the edge portion 2112 in a variety of ways. In some embodiments, before the first steel layer 211 and the first aluminum layer 212 are compounded, the area of ​​the first aluminum layer 212 can be made smaller than the area of ​​the first steel layer 211, that is, when cutting, the area of ​​the first aluminum layer 212 can be made smaller than the area of ​​the first steel layer 211, so that the edge portion 2112 can be exposed after the first aluminum layer 212 is compounded with the first steel layer 211; in other embodiments, the edge portion 2112 can also be exposed by peeling aluminum after the first steel layer 211 and the first aluminum layer 212 are compounded. For example, after the first steel layer 211 and the first aluminum layer 212 are compounded, the portion of the first aluminum layer 212 corresponding to the edge portion 2112 can be peeled off to expose the edge portion 2112. The peeling can be performed by laser peeling, shear peeling with a cutter, or other methods. It is understandable that the edge portion 2112 can also be exposed to the outside world by other methods, not limited to the above two methods.

[0187] The first aluminum layer 212 can cover the entire main body 2111 and expose the edge portion 2112. Since the main function of the first aluminum layer 212 is to provide connection to the aluminum structure, this setting can increase the connection area between the first aluminum layer 212 and the aluminum structure layer to increase the connection strength and stability between the first aluminum layer 212 and the aluminum structure; the first aluminum layer 212 can also only cover part of the main body 2111 and expose the part of the main body 2111 close to the edge portion 2112. When the edge portion 2112 is connected to the third steel layer 111 to form a connection structure, this setting can create a space between the first aluminum layer 212 and the connection structure, thereby reducing the interference caused by the first aluminum layer 212 to the connection between the edge portion 2112 and the third steel layer 111.

[0188] 8 to 11 , in some embodiments, the first steel layer 211 is welded to the third steel layer 111 at the edge portion 2112 to form a first sealing structure 31 .

[0189] The first sealing structure 31 refers to the structure formed at the connection between the edge portion 2112 and the third steel layer 111. Depending on the specific method of connecting the edge portion 2112 to the third steel layer 111, the first sealing structure 31 can be a brazed joint, a fusion welding weld or other structure.

[0190] The main function of the first sealing structure 31 is to seal the gap between the edge portion 2112 and the third steel layer 111 to reduce the entry of external impurities into the accommodating cavity 101 from the connection between the edge portion 2112 and the third steel layer 111; in addition to the sealing function, the first sealing structure 31 can also serve to connect the edge portion 2112 and the third steel layer 111.

[0191] For example, the first sealing structure 31 can be formed by a brazing process. The brazing process is used to connect the edge portion 2112 and the third steel layer 111, which can not only make the connection have strong mechanical strength and less negative impact on the edge portion 2112 and the third steel layer 111, but also enable the brazed joint formed by brazing to serve as the first sealing structure 31 to play a sealing role.

[0192] For example, the first sealing structure 31 can also be formed by a fusion welding process. Using the fusion welding process to connect the edge portion 2112 and the third steel layer 111 can not only make the connection have strong mechanical strength and less negative impact on the edge portion 2112 and the third steel layer 111, but also enable the weld formed by the fusion welding to serve as the first sealing structure 31 to play a sealing role.

[0193] The first sealing structure 31 formed by welding between the edge portion 2112 and the third steel layer 111 can save structures such as sealing gaskets, thereby reducing the overall weight of the battery 100 and simplifying the connection process; at the same time, the first sealing structure 31 can be formed in the process of connecting the edge portion 2112 and the third steel layer 111, without the need for an additional process for forming the first sealing structure 31, further simplifying the process.

[0194] In this embodiment, the first steel layer 211 is welded to the third steel layer 111, so that the connection part has higher mechanical strength, thereby improving the stability of the temperature control component 20 connected to the side beam 11; at the same time, a first sealing structure 31 is formed at the connection between the first steel layer 211 and the third steel layer 111, so as to seal the connection between the temperature control component 20 and the side beam 11 through the first sealing structure 31, thereby improving the protection performance of the box body to the battery cell 40 and other structures in the accommodating cavity 101, and reducing the occurrence of external impurities entering the accommodating cavity 101.

[0195] 12 , in some embodiments, the side beam 11 includes a third steel layer 111 and a third aluminum layer 112 covering the third steel layer 111 , and the first aluminum layer 212 is connected to the third aluminum layer 112 .

[0196] The third steel layer 111 refers to a layered structure in which the main material of the side beam 11 is steel. The material of the third steel layer 111 may include only steel, or may include other materials with a specific gravity of steel being greater than that of other materials.

[0197] The third aluminum layer 112 refers to a layered structure in which the main material of the side beam 11 is aluminum. The material of the third aluminum layer 112 may include only aluminum, or may include other materials with a specific gravity of aluminum greater than that of other materials.

[0198] The main function of the third aluminum layer 112 is to make it easier to connect the first plate 21 to the side beam 11 ; the third aluminum layer 112 is connected to the first aluminum layer 212 by welding, bonding or other connection methods.

[0199] The third aluminum layer 112 can also protect the third steel layer 111. Since aluminum has certain corrosion resistance, covering the third steel layer 111 with the third aluminum layer 112 can reduce possible corrosion of the third steel layer 111 caused by the external environment.

[0200] The third steel layer 111 and the third aluminum layer 112 can be compounded by a rolling process to form a plate body, or they can be compounded by explosive compounding, adhesive compounding or other methods; after the third steel layer 111 and the third aluminum layer 112 are compounded to form a plate body, the plate body can be rolled to form a side beam 11, or the plate body can be rolled and arc welded separately to form the side beam 11, or the plate body can be processed into the side beam 11 by other methods; it can be understood that in addition to the third steel layer 111 and the third aluminum layer 112, the side beam 11 can also include a layered structure of other materials and be compounded with the third steel layer 111 and the third aluminum layer 112.

[0201] 12 , in some embodiments, the first aluminum layer 212 and the third aluminum layer 112 are welded to form a second sealing structure 33 .

[0202] The second sealing structure 33 refers to the structure formed at the connection between the first aluminum layer 212 and the third aluminum layer 112. Depending on the specific method of connecting the first aluminum layer 212 to the third aluminum layer 112, the second sealing structure 33 can be a brazed joint, a fusion welding weld or other structure.

[0203] The main function of the second sealing structure 33 is to seal the gap between the first aluminum layer 212 and the third aluminum layer 112 to reduce the entry of external impurities into the accommodating cavity 101 from the connection between the first aluminum layer 212 and the third aluminum layer 112, thereby reducing the negative impact of external impurities on structures such as the battery cell 40 in the accommodating cavity 101; in addition to the sealing function, the second sealing structure 33 can also serve to connect the first aluminum layer 212 and the third aluminum layer 112.

[0204] For example, the second sealing structure 33 can be formed by a brazing process. Using the brazing process to connect the first aluminum layer 212 and the third aluminum layer 112 can not only make the connection have strong mechanical strength and less negative impact on the first aluminum layer 212 and the third aluminum layer 112, but also enable the brazing joint formed by brazing to serve as the second sealing structure 33 to play a sealing role.

[0205] For example, the second sealing structure 33 can also be formed by a fusion welding process. Using the fusion welding process to connect the first aluminum layer 212 and the third aluminum layer 112 can not only make the connection have strong mechanical strength and less negative impact on the first aluminum layer 212 and the third aluminum layer 112, but also enable the weld formed by the fusion welding to serve as the second sealing structure 33 to play a sealing role.

[0206] The second sealing structure 33 formed by welding between the first aluminum layer 212 and the third aluminum layer 112 can save structures such as sealing gaskets, thereby reducing the overall weight of the battery 100 and simplifying the connection process; at the same time, the second sealing structure 33 can be formed in the process of connecting the first aluminum layer 212 and the third aluminum layer 112, without the need for an additional process for forming the second sealing structure 33, further simplifying the process.

[0207] According to some embodiments of the present application, referring to FIG. 6 , FIG. 7 , and FIG. 13 , the lower box body 10 further includes a structural beam 12 accommodated in the accommodating cavity 101 , and the temperature control assembly 20 is connected to the lower box body 10 via bolts 32 .

[0208] The structural beam 12 refers to the structure in the accommodating cavity 101 in the lower box body 10. The structural beam 12 can be an expansion beam used to suppress the expansion of the battery cell 40, or it can be a reinforcing beam used to enhance the structural strength of the lower box body 10; the structural beam 12 can be a box beam, an I-beam or a beam body of other shapes; the cross-sectional shape of the structural beam 12 can be square or other shapes; when the structural beam 12 is a box beam, the structural beam 12 can be formed by rolling, or by local rolling combined with arc welding, and the structural beam 12 can also be formed by other methods.

[0209] The structural beam 12 can be connected to the side beam 11 to provide support for the temperature control component 20; because the temperature control component 20 has the function of carrying passengers, cargo or other structures, after the battery 100 is installed in the vehicle 200, the middle part of the temperature control component 20 will be under greater pressure. At this time, the structural beam 12 can provide support for the temperature control component 20 to enhance the load-bearing capacity of the temperature control component 20 in the middle, reduce the deformation of the temperature control component 20 in the middle, and enhance the support performance and load-bearing capacity of the temperature control component 20.

[0210] Because the battery cell 40 may expand during use, it is easy to cause the temperature control component 20 to deform in the direction away from the accommodating cavity 101. The temperature control component 20 is connected to the structural beam 12 through the bolt 32. A pressure directed to the accommodating cavity 101 can also be applied to the temperature control component 20 through the bolt 32 to suppress the deformation of the temperature control component 20 in the direction away from the accommodating cavity 101, thereby increasing the overall strength and stability of the temperature control component 20.

[0211] The temperature control assembly 20 may be connected to the lower box body 10 only by the bolts 32 , or may be connected to the lower box body 10 by the bolts 32 in combination with welding. In some embodiments, the temperature control component 20 is connected to the lower box 10 only by bolts 32. In this case, multiple bolts 32 should be set on the periphery of the temperature control component 20 to improve the connection strength between the temperature control component 20 and the lower box 10. At the same time, a sealing ring or other sealing structure is set between the temperature control component 20 and the lower box 10 to reduce the occurrence of external impurities entering the accommodating cavity 101 from the connection between the temperature control component 20 and the lower box 10; in other embodiments, the temperature control component 20 can also be connected to the lower box 10 by bolts 32 and welding. For example, the periphery of the temperature control component 20 is welded to the side beam 11 of the lower box 10, so that the periphery of the temperature control component 20 and the side beam 11 have a strong connection strength and good sealing performance. At the same time, the middle part of the temperature control component 20 is connected to other structures of the lower box 10 such as the expansion beam by bolts 32 to limit the deformation of the temperature control component 20 and reduce the negative impact of deformation and other possible effects on the temperature control component 20 caused by the expansion of the battery cell 40.

[0212] In this embodiment, the temperature control component 20 is connected to the lower box body 10 by bolts 32 to enhance the stability of the connection between the temperature control component 20 and the lower box body 10; since the expansion of the battery cell 40 in the accommodating cavity 101 can easily cause the box body to deform, connecting the temperature control component 20 to the lower box body 10 by bolts 32 can reduce the influence of the deformation of the battery cell 40 on the temperature control component 20 and the synchronous deformation, and enable the temperature control component 20 to be more stably connected to the lower box body 10.

[0213] 13 , in some embodiments, one end of the bolt 32 passes through the first plate 21 and the second plate 221 and is threadedly connected to the lower box 10 .

[0214] The bolt 32 is used to fix the temperature control component 20 to the lower box body 10; one end of the bolt 32 can pass through the first plate body 21 and the second plate body 221 and be threadedly connected to the lower box body 10. For example, a threaded hole can be opened on the expansion beam of the lower box body 10, so that the screw rod of the bolt 32 passes through the first plate body 21 and the second plate body 221 and enters the threaded hole, so that the screw rod of the bolt 32 is threadedly matched with the threaded hole and the temperature control component 20 is pressed on the expansion beam through the head of the bolt 32, so as to achieve the fixation of the temperature control component 20 by the bolt 32.

[0215] The bolt 32 may include a self-clinching bolt 32 , a pull-clinching bolt 32 , or other types of bolts 32 . In some specific embodiments, the bolt 32 is a double-layer pull-clinching bolt 32 .

[0216] The bolt 32 passing through the temperature control component 20 will pass through the first plate body 21. At this time, the bolt 32 should avoid the flow channel 201 to reduce the heat exchange medium from flowing from the bolt 32 into the accommodating cavity 101 or flowing to the outside. For example, when the structural member 22 is the flow channel tube 222, the bolt 32 should avoid the flow channel tube 222 to avoid passing through the flow channel 201; when the structural member 22 is the second plate body 221, the bolt 32 will pass through the second plate body 221, but should still avoid the flow channel 201.

[0217] 13 , in some embodiments, a third sealing structure 34 is provided between the end of the bolt 32 away from the lower box 10 and the temperature control assembly 20 .

[0218] The third sealing structure 34 refers to a structure in the battery 100 used to seal the connection between the bolt 32 and the temperature control component 20. The third sealing structure 34 can be a sealing structure formed by a sealant, or it can be a sealing gasket or other structure with a sealing function; the third sealing structure 34 can be arranged between the head of the bolt 32 and the surface of the temperature control component 20 facing away from the accommodating cavity 101. The third sealing structure 34 can also be arranged on the peripheral side of the head of the bolt 32 and seal the gap between the head of the bolt 32 and the temperature control component 20. The third sealing structure 34 can also be arranged at the position where the screw of the bolt 32 passes through the temperature control component 20.

[0219] For example, the third sealing structure 34 is a sealant and is provided between the head of the bolt 32 and the surface of the temperature control assembly 20 facing away from the accommodating cavity 101 .

[0220] The third sealing structure 34 is specifically used to seal the gap that may be generated when the bolt 32 passes through the temperature control component 20, so as to reduce the external impurities from entering between the first plate body 21 and the second plate body 221, and also reduce the external impurities from entering the accommodating cavity 101.

[0221] According to some embodiments of the present application, referring to FIG. 3 , an electrode terminal 44 is provided on the top of the battery cell 40 , and the bottom of the battery cell 40 is opposite to the temperature control assembly 20 .

[0222] The top of the battery cell 40 refers to the end of the battery cell 40 having the electrode terminal 44, and the bottom of the battery cell 40 refers to the end of the battery cell 40 opposite to its top. The bottom of the battery cell 40 opposite to the temperature control component 20 means that the battery cell 40 is upside down in the accommodating cavity 101, and at this time the top of the battery cell 40 is opposite to the bottom surface of the lower box body 10.

[0223] Because the bottom surface of the battery cell 40 is usually relatively flat, the bottom of the battery 100 assembly is opposite to the temperature control assembly 20, so that the battery cell 40 can be closer to the temperature control assembly 20, or the battery cell 40 can be more easily in contact with the temperature control assembly 20, thereby making the contact area between the battery cell 40 and the temperature control assembly 20 larger, so that the temperature control assembly 20 can better directly exchange heat with the battery cell 40.

[0224] On the second aspect, some embodiments of the present application also provide a vehicle 200, which may refer to a large car, a small car, a special-purpose vehicle, etc. For example, according to the vehicle model, the vehicle may be a sedan model, an off-road model, a multi-purpose vehicle (MPV) model or other models.

[0225] The vehicle 200 includes the battery 100 provided by some embodiments of the first aspect, and also includes a vehicle body; wherein the box of the battery 100 is connected to the bottom of the vehicle body, and the temperature control component 20 forms the floor of the vehicle body.

[0226] The vehicle body refers to the main part of the vehicle 200, which mainly includes structures such as the vehicle body, doors, roof, and floor. The vehicle body is used to accommodate the driver, passengers, cargo, etc.

[0227] The battery 100 is located at the bottom of the vehicle body, and the temperature control component 20 faces the interior of the vehicle body and can serve as the floor of the vehicle body for the driver or passengers to step on, and can also be used to carry cargo, etc. At the same time, the temperature control component 20 can also serve as a floor to provide a fixed foundation for structures such as seats and structural beams.

[0228] In this embodiment, because the temperature control component 20 has strong strength, the temperature control component 20 can serve as the floor of the vehicle body and can not only meet the strength requirements of the vehicle body floor, but also reduce the internal structure of the vehicle body, thereby reducing the space occupied by structural parts and the weight of the vehicle 200, thereby achieving the effect of increasing the internal space of the vehicle 200 and reducing the weight of the vehicle 200.

[0229] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery for use in a vehicle, wherein: The battery comprises: lower box; a temperature control assembly, the cover being disposed on the lower box body and forming a receiving cavity with the lower box body, the temperature control assembly being used to form at least a portion of the floor of the vehicle; The battery cell is accommodated in the accommodating cavity.

2. The battery according to claim 1, wherein The temperature control assembly includes a first plate and a structural member, the first plate includes a first steel layer and a first aluminum layer stacked together, and the first steel layer is arranged on a side of the first aluminum layer away from the accommodating cavity; The structural member comprises an aluminum structure, and the aluminum structure is welded to the first aluminum layer; A flow channel is formed between the first plate and the structural member, or a flow channel is formed in the structural member.

3. The battery according to claim 2, wherein The battery also includes a seat beam connected to the first steel layer.

4. The battery according to claim 3, wherein The seat beam is a steel beam, and the seat beam is welded to the first steel layer.

5. The battery according to any one of claims 2 to 4, wherein The battery further includes a mounting member connected to the first steel layer.

6. The battery according to claim 5, wherein The mounting component is a steel structure, and the mounting component is welded to the first steel layer.

7. The battery according to any one of claims 2 to 6, wherein The structural member includes a second plate body stacked on the first aluminum layer, the second plate body includes a second aluminum layer, and the second aluminum layer is welded to the first aluminum layer; The flow channel is formed between the first aluminum layer and the second aluminum layer.

8. The battery according to claim 7, wherein The first plate body is provided with a groove in a direction away from the second plate body, and the second plate body covers the groove and encloses the flow channel.

9. The battery according to claim 7 or 8, wherein The side surface of the second plate body facing the accommodating cavity is a plane.

10. The battery according to any one of claims 2 to 6, wherein The structural component includes a flow channel tube, the flow channel tube is an aluminum structure, and the flow channel is formed in the flow channel tube.

11. The battery according to claim 10, wherein The first plate body is provided with a groove in a direction away from the accommodating cavity, and at least a portion of the flow channel tube is accommodated in the groove.

12. The battery according to claim 11, wherein The surface of the flow channel tube facing the accommodating cavity is flush with the surface of the first plate body facing the accommodating cavity.

13. The battery according to any one of claims 2 to 12, wherein The lower box body includes side beams, and the first plate body is welded to the side beams.

14. The battery according to claim 13, wherein The side beam includes a third steel layer, and the first steel layer is welded to the third steel layer.

15. The battery according to claim 14, wherein The first steel layer includes a main body and an edge portion provided on a peripheral side of the main body. The edge portion is bent relative to the main body and stacked on one side of the main body. The bent edge portion is welded to the side beam.

16. The battery according to claim 14, wherein The first steel layer includes a main body and an edge portion provided around the main body. The first aluminum layer covers at least a portion of the main body and exposes the edge portion. The first steel layer is welded to the third steel layer at the edge portion.

17. The battery according to claim 15 or 16, wherein The first steel layer is welded to the third steel layer at the edge portion to form a first sealing structure.

18. The battery according to claim 13, wherein The side beam includes a third steel layer and a third aluminum layer covering the third steel layer, and the first aluminum layer is welded to the third aluminum layer.

19. The battery according to claim 18, wherein The first aluminum layer and the third aluminum layer are welded to form a second sealing structure.

20. The battery according to any one of claims 1 to 19, wherein The lower box body also includes a structural beam accommodated in the accommodating cavity, and the temperature control component is connected to the structural beam by bolts.

21. The battery according to claim 20, wherein A third sealing structure is provided between the end of the bolt away from the structural beam and the temperature control component.

22. The battery according to any one of claims 1 to 21, wherein The top of the battery cell is provided with an electrode terminal, and the bottom of the battery cell is opposite to the temperature control component.

23. A vehicle, wherein include: vehicle body; as well as The battery according to any one of claims 1 to 22, wherein the battery is connected to the bottom of the vehicle body, and the temperature control assembly forms at least a portion of the floor of the vehicle body.

Images