Battery and vehicle

Abstract

Provided are a battery and a vehicle. The battery is applied to the vehicle. The battery comprises a case, a battery management unit, a first layer of battery cells, and a second layer of battery cells. The case comprises a case housing and a case cover, an opening is formed in the case housing, the case cover covers the opening in a first direction, the case cover is provided with a clearance portion, and the clearance portion is used for providing clearance for a vehicle beam of the vehicle. The first layer of battery cells and the second layer of battery cells are arranged in the case and are stacked in the first direction. The first layer of battery cells is closer to the case cover than the second layer of battery cells. The first layer of battery cells comprises a first battery module and a second battery module which are located on two sides of the clearance portion in a second direction, and the first direction and the second direction are perpendicular to each other. The battery management unit is arranged in the case. The battery management unit is located between the first battery module and the second battery module and is offset from the clearance portion in the second direction. The technical solution can improve the volumetric energy density of the battery.

Description

Batteries and vehicles CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Chinese patent application No. 202420285529.1, filed on February 6, 2024, entitled “Batteries and Vehicles,” and the entire contents of the above application are incorporated herein by reference. Technical Field

[0002] The present application relates to the field of battery technology, 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] In the development of battery technology, how to improve the energy density of batteries is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The present application provides a battery and a vehicle, and the technical solution provided in the present application can improve the volume energy density of the battery.

[0006] This application is achieved through the following technical solutions:

[0007] In a first aspect, the present application provides a battery. It is applied to a vehicle. The battery includes a case, a battery management unit, a first layer of battery cells, and a second layer of battery cells. The case includes a case shell and a case cover, the case shell has an opening, the case cover covers the opening along a first direction, and the case cover is provided with an avoidance portion, the avoidance portion is used to avoid the vehicle beam. The first layer of battery cells and the second layer of battery cells are arranged in the case and stacked along the first direction. The first layer of battery cells is closer to the case cover than the second layer of battery cells, and the first layer of battery cells includes a first battery module and a second battery module located on both sides of the avoidance portion along the second direction, and the first direction and the second direction are perpendicular to each other. The battery management unit is arranged in the case. The battery management unit is located between the first battery module and the second battery module and is offset from the avoidance portion along the second direction.

[0008] In the above solution, by arranging the first and second battery modules on either side of the escape portion, the space on the sides of the vehicle's beam can be effectively utilized, allowing the box to accommodate more battery cells, improving the battery's space utilization rate and facilitating an increase in the battery's volumetric energy density. Furthermore, by arranging the battery management unit between the first and second battery modules and offsetting it from the escape portion along the second direction, the battery management unit can rationally utilize the space between the two longitudinal beams of the vehicle beam, reducing the space occupied by the battery management unit for the battery cells. This allows the box to accommodate more battery cells, improving the battery's space utilization rate and achieving a high volumetric energy density.

[0009] According to some embodiments of the present application, the avoidance portion includes a first groove and a second groove spaced apart along the second direction, the first groove and the second groove are formed by the box cover being recessed toward the box shell, the first groove and the second groove are respectively used to avoid the two longitudinal beams of the vehicle beam, and the battery management unit is located between the first groove and the second groove.

[0010] In the above scheme, by forming the first groove and the second groove on the box cover, on the one hand, the two longitudinal beams of the vehicle can be effectively avoided, so that the battery cells in the box body can utilize the space on the sides of the longitudinal beams, and the battery thermal management unit can utilize the space between the two longitudinal beams, thereby loading more battery cells to improve the volume energy density of the battery; on the other hand, because the strength of the box cover is lower than that of the box shell, the first groove and the second groove can be efficiently formed on the box cover, so that the manufacturing efficiency of the battery is high.

[0011] According to some embodiments of the present application, the battery also includes a connector, which is connected to the battery management unit and is used to connect to the vehicle end so that the battery is electrically or fluidically connected to the vehicle body, and the connector is located between the first groove and the second groove.

[0012] In the above scheme, by arranging the connector between the first groove and the second groove, on the one hand, the space between the two longitudinal beams can be reasonably utilized, and the space occupied by the connector for the battery cells can be reduced, so that more battery cells can be loaded to increase the volume energy density of the battery; on the other hand, the connector can be protected by the longitudinal beam, so that the electrical connection or fluid communication between the battery and the vehicle end is more stable.

[0013] According to some embodiments of the present application, the battery also includes a thermal management component, which includes a first layer of thermal management components and a second layer of thermal management components stacked along a first direction. The first layer of thermal management components includes two thermal management components separated from each other. The two thermal management components are respectively located on both sides of the battery management unit along the second direction to respectively adjust the temperature of the first battery module and the second battery module. The second layer of thermal management components is used to adjust the battery cells away from the second layer.

[0014] In the above scheme, by arranging a first layer of heat pipe components and a second layer of thermal management components, and arranging thermal management components corresponding to the first battery module and the second battery module, the temperature of the battery cells of each unit in the box can be effectively regulated and managed, so that the risk of thermal runaway of the battery is small and the reliability of the battery is high; at the same time, by arranging the two thermal management components at intervals along the second direction, the battery management unit located in the middle can be avoided, which on the one hand can meet the space requirements of the battery management unit, and on the other hand can save the cost of thermal management based on the consideration that the battery management unit does not have high requirements for thermal management.

[0015] According to some embodiments of the present application, the second layer of battery cells includes a third battery module, a fourth battery module, and a fifth battery module arranged sequentially along the second direction. Along the first direction, the projection of the first battery module and the projection of the third battery module at least partially overlap, and the projection of the second battery module and the projection of the fifth battery module at least partially overlap. The battery also includes a first separator beam and a second separator beam, the first separator beam being disposed between the third battery module and the fourth battery module, and the second separator beam being disposed between the fourth battery module and the fifth battery module.

[0016] In the above scheme, by setting the first partition beam and the second partition beam, on the one hand, the structural strength of the box can be improved, so that the battery cells are stably placed in the accommodation space; on the other hand, the third battery module, the fourth battery module and the fifth battery module can be separated, so that the third battery module, the fourth battery module and the fifth battery module are independent of each other and do not interfere with each other, thereby reducing the risk of thermal runaway of the battery, and thus making the battery have higher reliability.

[0017] According to some embodiments of the present application, the first battery module, the second battery module, the third battery module, the fourth battery module, and the fifth battery module are all connected to a battery management unit.

[0018] In the above solution, the battery management unit can manage each battery module, so that the battery integration is high, thereby effectively outputting and inputting electric energy.

[0019] According to some embodiments of the present application, the thermal management assembly has a flow channel inside, which is used to accommodate a medium to regulate the temperature of the battery cell. The flow channels inside the two thermal management components are respectively connected to the flow channels inside the second layer of thermal management components.

[0020] In the above solution, the thermal management component effectively exchanges heat with the battery cells through the medium within it, thereby efficiently regulating the temperature of the battery cells. Furthermore, by connecting the internal flow channels of the first-layer thermal management component with the internal flow channels of the second-layer thermal management component, the flow efficiency of the medium is improved, which facilitates the thermal management of the battery cells and improves the reliability of the battery.

[0021] According to some embodiments of the present application, the second layer of thermal management components includes a first thermal management part, a second thermal management part and a third thermal management part. The first thermal management part, the second thermal management part and the third thermal management part are respectively arranged corresponding to the third battery module, the fourth battery module and the fifth battery module, and the flow channel inside the first thermal management part, the flow channel inside the second thermal management part and the flow channel inside the third thermal management part are interconnected.

[0022] In the above scheme, by setting the first thermal management unit, the second thermal management unit and the third thermal management unit to correspond to the third battery module, the fourth battery module and the fifth battery module, the temperatures of the third battery module, the fourth battery module and the fifth battery module are managed respectively, thereby effectively improving the thermal management capability of the battery and making the battery have higher reliability.

[0023] According to some embodiments of the present application, two thermal management components, a first thermal management portion, a second thermal management portion, and a third thermal management portion are arranged in parallel; or, two thermal management components and a second layer of thermal management components are arranged in series.

[0024] In some embodiments of the above-described scheme, by arranging two thermal management components, a first thermal management unit, a second thermal management unit, and a third thermal management unit in parallel, the medium can be evenly heat-exchanged with the corresponding battery modules, resulting in highly consistent thermal management of the battery, effectively reducing the risk of thermal runaway and, consequently, enhancing battery reliability. In some embodiments, by arranging the two thermal management components in series with the second layer of thermal management components, the flow path of the medium can be shortened, thereby reducing energy consumption of the medium in the path not interacting with the battery modules, improving heat exchange efficiency of the medium, and achieving energy conservation.

[0025] According to some embodiments of the present application, the second-layer heat management component includes two plate-like members stacked along a first direction, and the two plate-like members together form a flow channel inside the second-layer heat management component.

[0026] In the above solution, the second layer of thermal management components is formed by stacking two plate-like members, which can make the second layer of thermal management components highly integrated and effectively reduce the space occupied by the internal space of the box, so that the box can load more battery cells, which is conducive to improving the battery volume energy density.

[0027] According to some embodiments of the present application, the second layer of thermal management components has a collecting input flow channel, and the flow channel inlets inside the two thermal management components, the first thermal management portion, the second thermal management portion, and the third thermal management portion are respectively connected to the collecting input flow channel; and / or,

[0028] The second layer of thermal management components includes a collecting output flow channel, and the flow channel outlets inside the two thermal management elements, the first thermal management part, the second thermal management part and the third thermal management part are respectively communicated with the collecting output flow channel.

[0029] In the above solution, by providing a current collecting input channel and a current collecting output channel, the two thermal management components, the first thermal management unit, the second thermal management unit, and the third thermal management unit can be arranged in parallel. This allows the medium to evenly exchange heat with the battery modules in corresponding positions, resulting in high consistency in the battery's thermal management, effectively reducing the risk of thermal runaway and, in turn, improving battery reliability. At the same time, by integrating the parallel current collecting input channel or current collecting output channel into the second layer of thermal management components, the space occupied by the integrated channels within the housing can be reduced, allowing the housing to accommodate more battery cells, which is beneficial for improving the battery's volumetric energy density.

[0030] According to some embodiments of the present application, the two thermal management components include a first thermal management component and a second thermal management component, and the battery further includes a connecting pipe, and the first thermal management component and the second thermal management component are respectively connected to the collecting input flow channel through different connecting pipes, and / or the first thermal management component and the second thermal management component are respectively connected to the collecting output flow channel through different connecting pipes.

[0031] In the above solution, by setting a connecting pipe, the first thermal management component and the second thermal management component located above the second layer of thermal management components are effectively connected to the second layer of thermal management components, so that the medium can flow before the first layer of thermal management components and the second layer of thermal management components, thereby effectively exchanging heat with the battery cells of each unit in the box, reducing the risk of thermal runaway of the battery, and making the battery have higher reliability.

[0032] According to some embodiments of the present application, the second-layer thermal management component includes a first collecting area and a second collecting area, and the first collecting area and the second collecting area are respectively arranged corresponding to the first dividing beam and the second dividing beam; at least part of the collecting input flow channel is located in the first collecting area, and at least part of the collecting output flow channel is located in the second collecting area.

[0033] In the above scheme, by respectively arranging at least part of the collecting input flow channel and at least part of the collecting output flow channel in the first collecting area and the second collecting area, the corresponding positions of the first dividing beam and the second dividing beam are utilized to reduce the space occupied by the first thermal management part, the second thermal management part and the third thermal management part, thereby not affecting the thermal management effect of the third battery module, the fourth battery module and the fifth battery module, effectively reducing the risk of thermal runaway of the battery, and making the battery have higher reliability.

[0034] According to some embodiments of the present application, the first partition beam and the second partition beam are respectively formed with a receiving groove, and the receiving groove is used to embed the connecting pipe.

[0035] In the above scheme, by providing accommodating grooves on the first partition beam and the second partition beam respectively, the connecting pipe can utilize the space where the first partition beam is located, thereby reducing the space occupied by the connecting pipe to the battery cell, so that the box can load more battery cells, which is beneficial to the improvement of the battery volume energy density.

[0036] In a second aspect, the present application further provides a vehicle, comprising a vehicle body and the battery provided above, wherein the vehicle body has a beam, and the avoidance portion of the battery is arranged corresponding to the beam.

[0037] In the above solution, the battery cells and battery management unit inside the battery can utilize the space on the side of the vehicle beam, so that the battery capacity is larger and the vehicle's endurance is longer.

[0038] According to some embodiments of the present application, when projected along the second direction, the projection of the first layer of battery cells at least partially overlaps with the projection of the vehicle beam.

[0039] In the above solution, the first layer of battery cells can utilize the space on the side of the vehicle, so that the box can carry more battery cells, improve the space utilization of the battery, and help increase the volume energy density of the battery, thereby extending the vehicle's range.

[0040] According to some embodiments of the present application, when projected along the second direction, the projection of the battery management unit overlaps with at least a portion of the projection of the vehicle beam.

[0041] In the above solution, the battery management unit can utilize the space on the side of the vehicle beam, reducing the space occupied by the battery management unit for the battery cells, so that the box can install more battery cells, improve the space utilization of the battery, and make the battery volume energy density high.

[0042] 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

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0044] FIG1 is a schematic diagram of a vehicle according to some embodiments of the present application;

[0045] FIG2 is a schematic diagram of a battery in some embodiments of the present application;

[0046] FIG3 is a schematic diagram of a battery and a beam in some embodiments of the present application;

[0047] FIG4 is a perspective exploded view of a partial structure of a battery in some embodiments of the present application;

[0048] FIG5 is a schematic diagram of the internal structure of some embodiments of the present application;

[0049] FIG6 is a schematic diagram of a thermal management assembly in some embodiments of the present application;

[0050] FIG7 is a schematic diagram of the internal flow channel of the second layer thermal management component in some embodiments of the present application;

[0051] FIG8 is a schematic diagram of a thermal management assembly in some other embodiments of the present application;

[0052] FIG9 is a schematic diagram of two plate-like members in some embodiments of the present application;

[0053] FIG10 is a schematic diagram of a box shell, a first partition beam, and a second partition beam in some embodiments of the present application.

[0054] Icons: 1000-vehicle; 100-battery; 200-controller; 300-motor; 10-box; 11-box shell; 12-box cover; 13-avoidance part; 130-first groove; 131-second groove; 20-first layer battery monomer; 21-first battery module; 22-second battery module; 30-second layer battery monomer; 31-third battery module; 32-fourth battery module; 33-fifth battery module; 80-battery management unit; 81-connector; 40-thermal management assembly; 41-first layer thermal management component; 410-thermal management element; 410a-first thermal management element; 410b-second thermal management element; 42-second layer thermal management component; 420-first thermal management part; 421-second thermal management part; 422-third thermal management part; 423-collecting input flow channel; 424-collecting output flow channel; 4 25-first collecting area; 426-second collecting area; 4250-through hole; 43-plate-shaped part; 430-groove; AA-total medium inlet; Aa-first upper layer inlet; Ab-second upper layer inlet; Ac-first lower layer inlet; Ad-second lower layer inlet; Ae-third lower layer inlet; BA-total medium outlet; Ba-first upper layer outlet; Bb-second upper layer outlet; Bc-first lower layer outlet; Bd-second lower layer outlet; Be-third lower layer outlet; 50-first dividing beam; 51-second dividing beam; 52-accommodating groove; 60-connecting pipe; 61-first connecting pipe; 62-second connecting pipe; 63-third connecting pipe; 64-fourth connecting pipe; 65-fifth connecting pipe; 66-sixth connecting pipe; 70-vehicle beam; 71-longitudinal beam; z-first direction; x-second direction; y-third direction. DETAILED DESCRIPTION

[0055] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0056] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments 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 drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0057] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the 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 in this application may be combined with other embodiments.

[0058] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0059] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0060] The term "multiple" in this application 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).

[0061] In some embodiments, the battery may be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0062] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are housed in the case.

[0063] In some embodiments, the battery cells may be secondary batteries, which are batteries that can be recharged to activate their active materials after discharge and continue to be used. The battery cells may be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, and the like, although this disclosure is not intended to limit this.

[0064] The battery also includes a housing, which includes a housing and a lid. The housing has an opening, and the lid fits over the housing to seal the opening, so that the housing and lid together form an enclosed space. The battery cells are positioned within the enclosed space to prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells. In some embodiments, the lid may be located above the housing.

[0065] In recent years, electric vehicles have experienced rapid development. In this field, batteries, as the power source of electric vehicles, play an irreplaceable and important role. As a core component of electric vehicles, batteries have high requirements in terms of energy density.

[0066] Currently, batteries are installed at the bottom of vehicles, below the vehicle beam. Considering that the ground clearance of the vehicle cannot be too low when the battery is used, the height of the battery cannot be too large. Therefore, the number of battery cells contained in the box is relatively small, which affects the volumetric energy density of the battery.

[0067] In view of this, in order to reduce the impact of the battery on the ground clearance of the vehicle after it is applied to the vehicle and to make the battery have a higher volume energy density, some embodiments of the present application provide a battery, which includes a case, a battery management unit, a first layer of battery cells and a second layer of battery cells. The case includes a case shell and a case cover, the case shell has an opening, the case cover covers the opening along a first direction, and the case cover is provided with an avoidance portion, and the avoidance portion is used to avoid the vehicle beam. The first layer of battery cells and the second layer of battery cells are arranged in the case and stacked along the first direction. The first layer of battery cells is closer to the case cover than the second layer of battery cells. The first layer of battery cells includes a first battery module and a second battery module located on both sides of the avoidance portion along the second direction, and the first direction and the second direction are perpendicular to each other. The battery management unit is arranged in the case. The battery management unit is located between the first battery module and the second battery module and is offset from the avoidance portion along the second direction.

[0068] In the above solution, by arranging the first and second battery modules on either side of the escape portion, the space lateral to the vehicle's beam can be effectively utilized. This allows the box to accommodate more battery cells without affecting the vehicle's ground clearance, improving battery space utilization and facilitating an increase in the battery's volumetric energy density. Furthermore, by arranging the battery management unit between the first and second battery modules and offsetting it from the escape portion along the second direction, the battery management unit can rationally utilize the space lateral to the beam, for example, by utilizing the space between the two longitudinal beams of the beam. This reduces the space occupied by the battery management unit for the battery cells, allowing the box to accommodate more battery cells, improving battery space utilization and achieving a high volumetric energy density.

[0069] The battery disclosed in the embodiments of the present application can be used in, but is not limited to, vehicles, and can also be used in other electrical devices with structural beams, wherein the battery can avoid the structural beams of other electrical devices.

[0070] The battery disclosed in the embodiments of this application can be used, but is not limited to, in an electrical device having longitudinal beams, such as vehicles, ships, or aircraft, and can be used to avoid the battery from the structural beams. The battery disclosed in this application can be used to form a power supply system for such an electrical device.

[0071] The embodiments of the present application provide an electrical device using a battery as a power source. The electrical device may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric car, a ship, a heavy truck, a bus, a spacecraft, etc. The electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc. The spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0072] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device according to an embodiment of the present application.

[0073] Please refer to Figure 1, which is a schematic diagram of a vehicle 1000 in some embodiments of the present application. The vehicle 1000 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. The type of the vehicle 1000 can be a sedan, an off-road vehicle, a heavy truck or a bus, etc. A battery 100 is provided inside the vehicle 1000, and the battery 1000 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can be used as an operating power source for the vehicle 1000, for the circuit system of the vehicle 1000, such as for the working power requirements during the startup, navigation and operation of the vehicle 1000.

[0074] The vehicle 1000 may further include a controller 200 and a motor 300 . The controller 200 is used to control the battery 100 to supply power to the motor 300 , for example, to meet the power requirements of the vehicle 1000 during startup, navigation, and driving.

[0075] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0076] In some embodiments of the present application, the vehicle body of the vehicle 1000 has a vehicle beam 70 , and the battery 100 can be arranged on the vehicle body to avoid the vehicle beam 70 .

[0077] Some embodiments of the present application provide a battery 100, please refer to Figures 2 to 5, Figure 2 is a schematic diagram of the battery in some embodiments of the present application, Figure 3 is a schematic diagram of the battery and the vehicle beam in some embodiments of the present application, Figure 4 is a three-dimensional exploded diagram of the local structure of the battery in some embodiments of the present application, and Figure 5 is a schematic diagram of the internal structure in some embodiments of the present application.

[0078] The battery 100 is used in a vehicle 1000. The battery 100 includes a housing 10, a battery management unit 80, a first layer of battery cells 20, and a second layer of battery cells 30. The housing 10 includes a housing 11 and a cover 12. The housing 11 has an opening, and the cover 12 covers the opening along a first direction z. The cover 12 is provided with a relief portion 13, which is used to avoid the beam 70 of the vehicle 1000. The first layer of battery cells 20 and the second layer of battery cells 30 are disposed within the housing 10 and stacked along the first direction z. The first layer of battery cells 20 is closer to the cover 12 than the second layer of battery cells 30. The first layer of battery cells 20 includes a first battery module 21 and a second battery module 22 located on either side of the relief portion 13 along a second direction x. The first direction z and the second direction x are perpendicular to each other. The battery management unit 80 is disposed within the housing 10. The battery management unit 80 is located between the first and second battery modules 21 and 22 and is offset from the relief portion 13 along the second direction x.

[0079] The interior of the housing 10 contains an enclosed space for accommodating battery cells. The housing 10 includes a housing 11 and a lid 12. The housing 11 and lid 12 are arranged along a first direction z and connected to each other. Together, the housing 11 and lid 12 define an enclosed space for accommodating battery cells. Optionally, the housing 11 and lid 12 can each be a hollow structure with one side open, with the open side of the housing 11 and the open side of the lid 12 cooperating to define the enclosed space. Alternatively, the housing 11 can be a hollow structure with one end open, and the lid 12 can be a plate-like structure, disposed on the open side of the housing 11, so that the housing 11 and lid 12 together define the enclosed space. For example, the housing 10 is square, with the housing 11 and lid 12 of the housing 10 arranged along a first direction z. The battery cells can be placed within the housing 11 through the opening of the housing 11, and the lid 12 can be attached to the housing 11 along the first direction z to seal the opening. The first direction z can be the height of the housing 10. The housing 10 has a larger dimension in the second direction x. The length of the housing 10 can be the second direction x, and the width of the housing 10 can be the third direction y. The first direction z, the second direction x, and the third direction y are all perpendicular to each other.

[0080] Optionally, the battery cell disposed within the housing 10 may be one or more. In some embodiments, the battery 100 is provided with multiple battery cells, which may be connected in series, in parallel, or in a hybrid configuration. A hybrid configuration refers to multiple battery cells being connected both in series and in parallel. Multiple battery cells may be directly connected in series, in parallel, or in a hybrid configuration, and the entire structure formed by the multiple battery cells may then be contained within a closed space. Of course, the battery 100 may also comprise multiple battery cells that are first connected in series, in parallel, or in a hybrid configuration to form a battery module, which may then be connected in series, in parallel, or in a hybrid configuration to form a single structure contained within a closed space.

[0081] The beam 70 is a structural member of the vehicle. In some embodiments, the beam 70 may be a frame-like structure spanning the front and rear axles of the vehicle, commonly known as a beam, and serves as the foundation of the vehicle. The beam 70 may support and connect various assemblies within the vehicle, ensuring they maintain relative positioning and bearing various internal and external loads. In some embodiments, the beam 70 may include two longitudinal beams 71 spaced apart and arranged side by side. The two longitudinal beams 71 may be spaced apart and arranged side by side along the second direction x.

[0082] The escape portion 13 comprises a recessed structure formed in the cover 12. The escape portion 13 may include an escape groove formed in the cover 12. When the battery 100 is used in the vehicle 1000, the escape portion 13 allows the vehicle beam 70 to pass through the escape portion 13. For example, the escape portion 13 extends through the vehicle along the third direction y, allowing the longitudinal beam 71 of the vehicle beam 70 to extend along the third direction y and fit within the escape portion 13.

[0083] For example, the vehicle beam 70 may include two longitudinal beams 71. Correspondingly, the avoidance portion 13 may include two first grooves 130 and second grooves 131, respectively provided corresponding to the longitudinal beams 71. The first groove 130 can accommodate one of the longitudinal beams 71, and the second groove 131 can accommodate the other longitudinal beam 71. In some embodiments, the first groove 130 and the second groove 131 may be independent of each other, that is, the first groove 130 and the second groove 131 may be separated by other structural members.

[0084] In some embodiments, the box 10 can be connected to the vehicle beam 70 directly or at intervals. For example, the box 10 is connected to the vehicle beam 70 via a bracket, or the box 10 is directly connected to the vehicle beam 70. In some embodiments, the structural strength of the box cover 12 can be lower than that of the box shell 11, and the force-bearing points where the box 10 is mounted on the vehicle beam 70 can be arranged on the box shell 11, which has greater structural strength. For example, when the box 10 is mounted on the vehicle beam 70, the first direction z can be considered as a direction parallel to the direction of gravity.

[0085] The first layer of battery cells 20 and the second layer of battery cells 30 are each a plurality of battery cells disposed within the housing 10. In some embodiments, when the first direction z is considered parallel to the direction of gravity, the housing cover 12 is above the housing 11, and the first layer of battery cells 20 can be considered above the second layer of battery cells 30. The first layer of battery cells 20 may include multiple battery cells or multiple battery modules. The second layer of battery cells 30 may include multiple battery cells or multiple battery modules.

[0086] The first layer of battery cells 20 includes a first battery module 21 and a second battery module 22, which are independent of each other in position. The first battery module 21 may include one or more battery cells, or the first battery module 21 may include one or more battery modules. The second battery module 22 may include one or more battery cells, or the second battery module 22 may include one or more battery modules.

[0087] The phrase "the first layer of battery cells 20 includes a first battery module 21 and a second battery module 22 located on either side of the relief portion 13 along the second direction x" can be understood to mean that the first battery module 21 can be located on one side of the relief portion 13 in the second direction x, and the second battery module 22 can be located on the other side of the relief portion 13 in the second direction x; that is, in the second direction x, the relief portion 13 is located between the first battery module 21 and the second battery module 22. For example, when the battery 100 is used in a vehicle 1000, the first battery module 21 can be located on one side of the vehicle beam 70, and the second battery module 22 on the other side of the vehicle 1000. For example, the first battery module 21 can be located on the side of one longitudinal beam 71 facing away from the other longitudinal beam 71, and the second battery module 22 can be located on the side of the other longitudinal beam 71 facing away from the other longitudinal beam 71. In some embodiments, a partition is provided between the first battery module 21 and the second layer of battery cells 30. The partition is fixedly connected to the wall of the housing 11 and supports the first battery module 21. In some embodiments, a partition is provided between the second battery module 22 and the second layer of battery cells 30 . The partition is fixedly connected to the wall of the box shell 11 , and the partition can support the second battery module 22 .

[0088] The battery management unit 80 may include, but is not limited to, a battery management system. In some embodiments, the battery management unit 80 may be equipped with high- and low-voltage connectors, a liquid cooling connector, and the like. The high- and low-voltage connectors are used to connect to the vehicle end to enable high- and low-voltage power transmission. The liquid cooling connector can also connect to the vehicle end to enable circulation of heat exchange media.

[0089] In the box 10 , along the second direction x, the battery 100 management component may be located between the first battery module 21 and the second battery module 22 and disposed on the same side as the first battery module 21 and the second battery module 22 relative to the second layer of battery cells 30 .

[0090] The staggered arrangement of the battery management unit 80 and the avoidance portion 13 along the second direction x can be understood as meaning that the battery management unit 80 and the avoidance portion 13 do not interfere with each other. For example, the battery management unit 80 is located on one side of the avoidance portion 13 in the second direction x. For example, when the avoidance portion 13 includes a first groove 130 and a second groove 131 spaced apart from each other, the battery management unit 80 can be located between the first groove 130 and the second groove 131.

[0091] In some embodiments, the case cover 12 has three protrusions, which are spaced apart along the second direction x and together form a first groove 130 and a second groove 131. The protrusions on both sides can respectively accommodate the first battery module 21 and the second battery module 22, and the protrusion in the middle accommodates the battery management unit 80. The size of the protrusion in the middle in the first direction z can be smaller than the size of the protrusions on the two sides in the first direction z.

[0092] In the above solution, by arranging the first battery module 21 and the second battery module 22 on either side of the escape portion 13, the space on the sides of the vehicle 1000's beam 70 can be effectively utilized, allowing the housing 10 to accommodate more battery cells, improving the space utilization of the battery 100 and facilitating an increase in the volumetric energy density of the battery 100. Furthermore, by arranging the battery management unit 80 between the first battery module 21 and the second battery module 22 and offsetting it from the escape portion 13 along the second direction x, the battery management unit 80 can rationally utilize the space between the two longitudinal beams 71 of the beam 70, reducing the space occupied by the battery management unit 80 for the battery cells. This allows the housing 10 to accommodate more battery cells, improving the space utilization of the battery 100 and increasing the volumetric energy density of the battery 100.

[0093] According to some embodiments of the present application, referring to Figures 3 and 5, the avoidance portion 13 includes a first groove 130 and a second groove 131 spaced apart along the second direction x, the first groove 130 and the second groove 131 being formed by the box cover 12 being recessed toward the box shell 11, the first groove 130 and the second groove 131 being respectively used to avoid the two longitudinal beams 71 of the vehicle beam 70, and the battery management unit 80 is located between the first groove 130 and the second groove 131.

[0094] For example, the battery 100 can be used in a vehicle 1000 in which the vehicle beam 70 includes two side-by-side longitudinal beams 71. In some embodiments, the two longitudinal beams 71 are arranged side by side along the second direction x. Corresponding to the longitudinal beams 71, the cover 12 can be provided with two first grooves 130 and second grooves 131 spaced apart along the second direction x. The first groove 130 is configured to accommodate one of the longitudinal beams 71, and the second groove 131 is configured to accommodate the other longitudinal beam 71, thereby allowing the battery 100 to avoid the longitudinal beams 71.

[0095] In some embodiments, the box cover 12 forms a convex portion facing away from the box shell 11 between the first groove 130 and the second groove 131 , and the interior of the convex portion can accommodate the battery management unit 80 so that the battery management unit 80 can be located between the first groove 130 and the second groove 131 .

[0096] In the above scheme, by forming the first groove 130 and the second groove 131 on the box cover 12, on the one hand, the two longitudinal beams 71 of the vehicle 1000 can be effectively avoided, so that the battery cells in the box body 10 can use the space on the sides of the longitudinal beams 71, and the battery 100 thermal management unit can use the space between the two longitudinal beams 71, so as to load more battery cells to improve the volume energy density of the battery 100; on the other hand, because the strength of the box cover 12 is lower than that of the box shell 11, the first groove 130 and the second groove 131 can be efficiently formed on the box cover 12, so that the manufacturing efficiency of the battery 100 is high.

[0097] According to some embodiments of the present application, please refer to Figure 2, the battery 100 also includes a connector 81, which is connected to the battery management unit 80, and the connector 81 is used to connect to the vehicle end so that the battery 100 is electrically or fluidically connected to the vehicle body. The connector 81 is located between the first groove 130 and the second groove 131.

[0098] The connector 81 may be a structural component for electrical or fluid communication between the battery 100 and the vehicle end. For example, the connector 81 may include but is not limited to a high- or low-voltage connector or a liquid-cooling connector.

[0099] “The connector 81 is located between the first groove 130 and the second groove 131 ” may be understood as meaning that when the battery 100 is applied to the vehicle 1000 , the connector 81 may be located between the two longitudinal beams 71 .

[0100] In the above solution, by arranging the connector 81 between the first groove 130 and the second groove 131, on the one hand, the space between the two longitudinal beams 71 can be reasonably utilized, and the space occupied by the connector 81 on the battery cells can be reduced, so that more battery cells can be loaded to increase the volume energy density of the battery 100; on the other hand, the connector 81 can be protected by the longitudinal beam 71, so that the electrical connection or fluid communication between the battery 100 and the vehicle end is more stable.

[0101] According to some embodiments of the present application, please refer to Figures 5 and 6. Figure 6 is a schematic diagram of the thermal management component in some embodiments of the present application.

[0102] The battery 100 also includes a thermal management assembly 40, which includes a first layer of thermal management components 41 and a second layer of thermal management components 42 stacked along a first direction z. The first layer of thermal management components 41 includes two thermal management components 410 separated from each other. The two thermal management components 410 are respectively located on both sides of the battery management unit 80 along the second direction x to respectively adjust the temperature of the first battery module 21 and the second battery module 22. The second layer of thermal management components 42 is used to adjust away from the second layer of battery cells 30.

[0103] The thermal management assembly 40 is a component capable of cooling or heating the battery cells.

[0104] In some embodiments, the thermal management assembly 40 may contain a medium to regulate the temperature of the battery cells, keeping them within a suitable temperature range and enhancing the reliability of the battery 100. The medium may be a fluid (liquid) or a gas, and regulating the temperature refers to heating or cooling the multiple battery cells. In other embodiments, when the thermal management assembly 40 only heats the battery cells, the thermal management assembly 40 may be an electrical heating structure that generates heat when powered to heat the battery cells.

[0105] In some embodiments, the thermal management component 40 may be a water-cooled plate, which can cool the battery cells by passing water at a relatively low temperature, and can heat the battery cells by passing water at a relatively high temperature.

[0106] Referring to Figure 6 , the thermal management assembly 40 includes a first layer of thermal management components 41 and a second layer of thermal management components 42, which are stacked along a first direction z. The first layer of thermal management components 41 is disposed corresponding to the first layer of battery cells 20 and is capable of regulating the temperature of the first layer of battery cells 20. The second layer of thermal management components 42 is disposed corresponding to the second layer of battery cells 30 and is capable of regulating the temperature of the second layer of battery cells 30. For example, the first layer of thermal management components 41 is disposed below the first layer of battery cells 20, and the second layer of thermal management components 42 is disposed below the second layer of battery cells 30.

[0107] The phrase "the first-layer thermal management component 41 includes two thermal management components 410 separated from each other" can be understood as meaning that, in order to regulate the temperature of the first battery module 21 and the second battery module 22, two thermal management components 410 are provided, each located independently of the other. This ensures that the first-layer thermal management component 41 does not affect the battery management unit 80. For example, one thermal management component is provided below the first battery module 21, and the other thermal management component is provided below the second battery module 22.

[0108] In the above solution, by providing a first layer of heat pipe components and a second layer of thermal management components 42, as well as providing thermal management components 410 corresponding to the first battery module 21 and the second battery module 22, the temperature of each battery cell in the housing 10 is effectively regulated and managed, thereby reducing the risk of thermal runaway of the battery 100 and enhancing the reliability of the battery 100. Furthermore, by spacing the two thermal management components 410 along the second direction x, the centrally located battery management unit 80 is avoided. This not only satisfies the space requirements of the battery management unit 80, but also reduces thermal management costs, given that the battery management unit 80 has a low thermal management requirement.

[0109] According to some embodiments of the present application, please refer to Figures 4 and 5. The second layer of battery cells 30 includes a third battery module 31, a fourth battery module 32, and a fifth battery module 33 arranged sequentially along the second direction x. Along the first direction z, the projection of the first battery module 21 and the projection of the third battery module 31 at least partially overlap, and the projection of the second battery module 22 and the projection of the fifth battery module 33 at least partially overlap. The battery 100 also includes a first separator beam 50 and a second separator beam 51. The first separator beam 50 is disposed between the third battery module 31 and the fourth battery module 32, and the second separator beam 51 is disposed between the fourth battery module 32 and the fifth battery module 33.

[0110] In some embodiments, the battery 100 has a larger dimension in the second direction x. For example, the battery 100 is in the shape of an elongated strip, and the length direction of the battery 100 may be parallel to the second direction x.

[0111] The first partition beam 50 and the second partition beam 51 are beam structures disposed within the housing 10 and can enhance the structural strength of the housing 10. For example, the first partition beam 50 is disposed within the housing 11, with its opposite ends connected to two opposing walls of the housing 11 along the third direction y. The second partition beam 51 is disposed within the housing 11, with its opposite ends connected to two opposing walls of the housing 11 along the third direction y. In some embodiments, the first partition beam 50 can be disposed corresponding to the first groove 130, meaning that the first partition beam 50 can be positioned below the first groove 130. The second partition beam 51 can be disposed corresponding to the second groove 131, meaning that the second partition beam 51 can be positioned below the second groove 131.

[0112] Along the second direction x, the first partition beam 50 and the second partition beam 51 divide the interior of the housing 11 into three chambers, which can respectively accommodate the third battery module 31, the fourth battery module 32, and the fifth battery module 33. The third battery module 31 can include one or more battery cells, or the third battery module 31 can include one or more battery modules. The fourth battery module 32 can include one or more battery cells, or the fourth battery module 32 can include one or more battery modules. The fifth battery module 33 can include one or more battery cells, or the fifth battery module 33 can include one or more battery modules.

[0113] In some embodiments, the first battery module 21 and the third battery module 31 are stacked in a first direction z. For example, a partition is provided between the first battery module 21 and the third battery module 31, and a thermal management component 410 is provided on the partition. The partition is fixedly connected to the wall of the housing 11, and the partition is capable of supporting the thermal management component 410 and the first battery module 21. In some embodiments, the second battery module 22 and the fifth battery module 33 are stacked in a first direction z. For example, a partition is provided between the second battery module 22 and the fifth battery module 33, and a thermal management component 410 is provided on the partition. The partition is fixedly connected to the wall of the housing 11, and the partition is capable of supporting the thermal management component 410 and the second battery module 22.

[0114] In the above scheme, by setting the first partition beam 50 and the second partition beam 51, on the one hand, the structural strength of the box body 10 can be improved, so that the battery cells are stably placed in the accommodation space; on the other hand, the third battery module 31, the fourth battery module 32 and the fifth battery module 33 can be separated, so that the third battery module 31, the fourth battery module 32 and the fifth battery module 33 are independent of each other and do not interfere with each other, thereby reducing the risk of thermal runaway of the battery 100, and thus making the battery 100 have higher reliability.

[0115] According to some embodiments of the present application, the first battery module 21 , the second battery module 22 , the third battery module 31 , the fourth battery module 32 and the fifth battery module 33 are all connected to the battery management unit 80 .

[0116] In some embodiments, the first battery module 21, the second battery module 22, the third battery module 31, the fourth battery module 32, and the fifth battery module 33 can be electrically connected to the battery management unit 80. For example, the second battery module 22, the third battery module 31, the fourth battery module 32, and the fifth battery module 33 are first connected in parallel to the battery management unit 80. For another example, the second battery module 22, the third battery module 31, the fourth battery module 32, and the fifth battery module 33 are connected in series to the battery management unit 80.

[0117] In the above solution, the battery management unit 80 can manage each battery 100 module, so that the battery 100 has a high degree of integration, thereby effectively outputting and inputting electric energy.

[0118] According to some embodiments of the present application, see Figure 6 . The thermal management assembly 40 has a flow channel inside for accommodating a medium to regulate the temperature of the battery cells. The flow channels inside the two thermal management components 410 are respectively connected to the flow channels inside the second layer of thermal management components 42 .

[0119] In some embodiments, the thermal management assembly 40 may regulate the temperature of the battery cells by using a containing medium to exchange heat with the battery cells.

[0120] A flow channel refers to a portion that can accommodate a medium and allow it to flow. In some embodiments, the thermal management assembly 40 is connected to the vehicle end via a connector 81. A medium storage device (e.g., a water tank) in the vehicle body provides the medium to the thermal management assembly 40 and enables the medium to circulate between the thermal management assembly 40 and the medium storage device. For example, when the battery 100 needs to be heated, the medium in the medium storage device flows out and is heated. The heated medium can then flow into the thermal management component to heat the battery cells in the housing 10, and then flow back to the medium storage device.

[0121] In some embodiments, the thermal management assembly 40 may include a water-cooled plate, the thermal management component 410 may include a water-cooled plate, and the second thermal management component 42 may be a water-cooled plate. In some embodiments, the water-cooled plate may be formed by stacking two plate-like members, and grooves may be formed on the facing surfaces of the plate-like members. The stacking of the two plate-like members allows the grooves to form a flow channel for the medium to flow.

[0122] In some embodiments, the flow path inside the thermal management component 410 can be circuitous to increase the contact area between the medium and the battery cells. In some embodiments, the flow inside the second layer thermal management component 42 can be circuitous to increase the contact area between the medium and the battery cells.

[0123] The phrase "the flow channels within the two thermal management components 410 are respectively connected to the flow channels within the second-layer thermal management component 42" can be understood to mean that the medium can flow through the thermal management components 410 and the second-layer thermal management component 42. In some embodiments, the two thermal management components 410 and the second-layer thermal management component 42 can be arranged in series or in parallel. For example, the medium in the vehicle-side medium storage device can flow through one of the thermal management components 410, then through the second-layer thermal management component 42, and finally flow back to the medium storage device through the other thermal management component 410.

[0124] In the above solution, the thermal management assembly 40 effectively exchanges heat with the battery cells through the medium within it, thereby efficiently regulating the temperature of the battery cells. Furthermore, by connecting the internal flow channels of the first-layer thermal management component 41 with the internal flow channels of the second-layer thermal management component 42, the flow efficiency of the medium is improved, which facilitates the thermal management of the battery cells and improves the reliability of the battery 100.

[0125] According to some embodiments of the present application, please refer to Figures 6 and 7. Figure 7 is a schematic diagram of the internal flow channel of the second layer thermal management component in some embodiments of the present application.

[0126] The second-layer thermal management component 42 includes a first thermal management part 420, a second thermal management part 421 and a third thermal management part 422. The first thermal management part 420, the second thermal management part 421 and the third thermal management part 422 are respectively arranged corresponding to the third battery module 31, the fourth battery module 32 and the fifth battery module 33. The flow channel inside the first thermal management part 420, the flow channel inside the second thermal management part 421 and the connection inside the third thermal management part 422 are interconnected.

[0127] The first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422 may be at least part of the second thermal management unit 421. The first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422 may be arranged along the second direction x to correspond to the third battery module 31, the fourth battery module 32, and the fifth battery module 33, respectively, thereby regulating the temperatures of the third battery module 31, the fourth battery module 32, and the fifth battery module 33, respectively.

[0128] In some embodiments, the flow channel inside the first thermal management part 420, the flow channel inside the second thermal management part 421, and the flow channel inside the third thermal management part 422 are arranged in series with each other. For example, the medium in the medium storage device flows out, first passes through one of the thermal management parts 410, and then passes through the first thermal management part 420, the second thermal management part 421, and the third thermal management part 422 in sequence, and finally flows back to the medium storage device through another thermal management part 410.

[0129] In some embodiments, the flow channels within the first thermal management unit 420, the flow channels within the second thermal management unit 421, and the flow channels within the third thermal management unit 422 can be arranged in parallel. Alternatively, in some embodiments, the flow channels within the first thermal management unit 420 and the flow channels within the second thermal management unit 421 are arranged in parallel and then connected to the flow channels within the third thermal management unit 422.

[0130] In the above scheme, by setting the first thermal management unit 420, the second thermal management unit 421 and the third thermal management unit 422 to correspond to the third battery module 31, the fourth battery module 32 and the fifth battery module 33, the temperatures of the third battery module 31, the fourth battery module 32 and the fifth battery module 33 are managed respectively, thereby effectively improving the thermal management capability of the battery 100 and making the battery 100 have higher reliability.

[0131] According to some embodiments of the present application, please refer to Figure 6 , two thermal management components 410 , a first thermal management unit 420 , a second thermal management unit 421 , and a third thermal management unit 422 are arranged in parallel.

[0132] In some embodiments, "two thermal management components 410, a first thermal management unit 420, a second thermal management unit 421, and a third thermal management unit 422 are arranged in parallel" can be understood as meaning that the medium can flow in and out of the two thermal management components 410, the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422 without prioritizing them, so that the thermal management consistency achieved by the first battery module 21, the second battery module 22, the second battery module 22, and the third battery module 31 within the housing 10 is high. For example, the medium in the medium storage device flows out and simultaneously flows into the two thermal management components 410, the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422 to simultaneously adjust the temperature of the first battery module 21, the second battery module 22, the second battery module 22, and the third battery module 31 within the housing 10, and then returns to the medium storage device.

[0133] Exemplarily, the medium in the medium storage device flows out and is provided to the two thermal management components 410, the first thermal management part 420, the second thermal management part 421 and the third thermal management part 422 at the same time through the collecting structure. The two thermal management components 410, the first thermal management part 420, the second thermal management part 421 and the third thermal management part 422 then discharge the medium back to the medium storage device through another collecting structure.

[0134] According to other embodiments of the present application, please refer to Figure 8. Figure 8 is a schematic diagram of a thermal management assembly in other embodiments of the present application. Two thermal management components 410 are arranged in series with the second layer of thermal management components 42.

[0135] In some embodiments, the medium can flow sequentially through the two thermal management components 410 and the second-layer thermal management component 42 to sequentially adjust the temperature of the first battery module 21, the second battery module 22, the second battery module 22, and the third battery module 31 within the housing 10. For example, the medium flowing out of the medium storage device first passes through one of the thermal management components 410, then sequentially passes through the second-layer thermal management component 42, and finally flows back to the medium storage device through the other thermal management component 410. In some embodiments, the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422 in the second-layer thermal management component 42 can be connected in series, in parallel, or in a mixed series.

[0136] In the above scheme, in some embodiments, by arranging two thermal management components 410, a first thermal management unit 420, a second thermal management unit 421, and a third thermal management unit 422 in parallel, the medium can be evenly heat-exchanged with the corresponding battery 100 modules, resulting in highly consistent thermal management of the battery 100, effectively reducing the risk of thermal runaway of the battery 100 and, consequently, improving the reliability of the battery 100. In some embodiments, by arranging two thermal management components 410 in series with the second layer of thermal management components 42, the flow path of the medium can be shortened, thereby reducing energy consumption of the medium in the path not acting on the battery 100 modules, improving the heat exchange efficiency of the medium, and achieving energy conservation.

[0137] According to some embodiments of the present application, see Figure 9, which is a schematic diagram of two plate-like members in some embodiments of the present application. The second layer of thermal management component 42 includes two plate-like members 43 stacked along the first direction z, and the two plate-like members 43 together form a flow channel inside the second layer of thermal management component 42.

[0138] Two plate-like members 43 are stacked and connected along a first direction z, and together form a flow channel for the medium to flow. For example, one of the plate-like members 43 may have a groove 430 formed on its surface, while the other plate-like member 43 has a flat surface. The two plate-like members 43 are stacked, and the grooves 430 define the flow channel. For example, the two plate-like members 43 each have a groove formed on their surface. The two plate-like members 43 are stacked, and the grooves of the two plate-like members 43 correspond to each other and together form the flow channel.

[0139] In some embodiments, the plate-shaped member 43 may be formed by a roll-forming process.

[0140] In some embodiments, the connection relationship between the two plate-like members 43 includes but is not limited to welding, bonding, or sealing connection.

[0141] In the above scheme, the second layer of thermal management components 42 is formed by stacking two plate-like members 43, which can make the second layer of thermal management components 42 highly integrated and effectively reduce the space occupied by the internal space of the box body 10, so that the box body 10 can load more battery cells, which is beneficial to the improvement of the volume energy density of the battery 100.

[0142] In some other embodiments, the second-layer thermal management component 42 may be a common water-cooling plate.

[0143] According to some embodiments of the present application, please refer to Figures 6 and 7.

[0144] The second-layer thermal management component 42 has a manifold input channel 423, and the flow channel inlets inside the two thermal management components 410, the first thermal management portion 420, the second thermal management portion 421, and the third thermal management portion 422 are respectively connected to the manifold input channel 423. And / or, the second-layer thermal management component 42 includes a manifold output channel 424, and the flow channel outlets inside the two thermal management components 410, the first thermal management portion 420, the second thermal management portion 421, and the third thermal management portion 422 are respectively connected to the manifold output channel 424.

[0145] The collecting channel is used to realize parallel connection of the two thermal management components 410 , the first thermal management portion 420 , the second thermal management portion 421 and the third thermal management portion 422 .

[0146] In some embodiments, the collecting flow channel includes a collecting input flow channel 423 and a collecting output flow channel 424, and the collecting input flow channel 423 is used to connect to the inlets of the internal flow channels of the two thermal management components 410, the first thermal management part 420, the second thermal management part 421 and the third thermal management part 422, so as to be able to simultaneously provide the medium outside the thermal management component 40 to the two thermal management components 410, the first thermal management part 420, the second thermal management part 421 and the third thermal management part 422.

[0147] The collecting output flow channel 424 is used to connect to the outlets of the internal flow channels of the two thermal management components 410, the first thermal management part 420, the second thermal management part 421 and the third thermal management part 422, so as to discharge the medium in the two thermal management components 410, the first thermal management part 420, the second thermal management part 421 and the third thermal management part 422 out of the thermal management assembly 40 at the same time.

[0148] In some embodiments, the manifold input channel 423 can be formed in an independent manifold structure, such as a manifold pipe. In some embodiments, the manifold input channel 423 can be integrated into the second-layer thermal management component 42, for example, forming the manifold input channel 423 inside the second-layer thermal management component 42, and the location of the manifold input channel 423 is independent of the flow channels of the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422.

[0149] In some embodiments, the manifold output flow channel 424 can be formed in an independent manifold structure, such as a manifold pipe. In some embodiments, the manifold output flow channel 424 can be integrated into the second-layer thermal management component 42, for example, forming the manifold output flow channel 424 inside the second-layer thermal management component 42, and the location of the manifold output flow channel 424 is independent of the flow channels of the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422.

[0150] In the above solution, by providing the current collecting input channel 423 and the current collecting output channel 424, the two thermal management components 410, the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422 can be arranged in parallel. This allows the medium to evenly exchange heat with the battery 100 modules at corresponding positions, resulting in high consistency in the thermal management of the battery 100, thereby effectively reducing the risk of thermal runaway of the battery 100 and thus improving the reliability of the battery 100. At the same time, by integrating the parallel current collecting input channel 423 or the current collecting output channel 424 into the second layer of thermal management components 42, the space occupied by the integrated channels within the housing 10 can be reduced, allowing the housing 10 to accommodate more battery cells, which is beneficial to improving the volumetric energy density of the battery 100.

[0151] According to some embodiments of the present application, please refer to FIG6 .

[0152] The two thermal management components 410 include a first thermal management component 410a and a second thermal management component 410b. The battery 100 also includes a connecting pipe 60. The first thermal management component 410a and the second thermal management component 410b are respectively connected to the collecting input flow channel 423 through different connecting pipes 60, and / or the first thermal management component 410a and the second thermal management component 410b are respectively connected to the collecting output flow channel 424 through different connecting pipes 60.

[0153] The first thermal management component 410a can be a component capable of regulating the temperature of the first battery module 21. The second thermal management component 421 can be a component capable of regulating the temperature of the second battery module 22. In some embodiments, the first thermal management component 410a can be located above the first thermal management component 420, and the second thermal management component 421 can be located above the third thermal management component 422. That is, the first thermal management component 410a and the second thermal management component 410b are spaced apart from the second thermal management component 42 in the first direction z. There is a gap between the first thermal management component 410a and the second thermal management component 410b, and the gap is compensated by the connecting pipe 60 to achieve communication between the flow channels.

[0154] In some embodiments, the connecting pipe 60 may include a metal pipe or a non-metal pipe. In some embodiments, the connecting pipe 60 may include two pipe structures connected by a joint.

[0155] Referring to Figure 6 , the first thermal management component 410a is connected to the second thermal management component 42 via a first connecting pipe 61 and a second connecting pipe 62, and the second thermal management component 410b is connected to the second thermal management component 42 via a third connecting pipe 63 and a fourth connecting pipe 64. For example, the first connecting pipe 61 connects the manifold input channel 423 to the inlet of the flow channel within the first thermal management component 410a, and the second connecting pipe 62 connects the manifold output channel 424 to the outlet of the flow channel within the first thermal management component 410a; the third connecting pipe 63 connects the manifold input channel 423 to the inlet of the flow channel within the second thermal management component 410b, and the fourth connecting pipe 64 connects the manifold output channel 424 to the outlet of the flow channel within the second thermal management component 410b.

[0156] Referring to Figure 6 , the manifold input channel 423 is provided with a fifth connecting pipe 65, and the manifold output channel 424 is provided with a sixth connecting pipe 66. Both the fifth connecting pipe 65 and the sixth connecting pipe 66 are connectable to the connector 81. The flow direction of the medium can be as follows: the medium in the vehicle end flows through the connector 81, passes through the fifth connecting pipe 65, and flows into the manifold input channel 423. The diversion of the manifold input channel 423 allows the medium to flow, without prioritizing, into the flow channel of the first thermal management unit 420, the flow channel of the second thermal management unit 421, the flow channel of the third thermal management unit 422, the flow channel of the first thermal management component 410a through the first connecting pipe 61, and the flow channel of the second thermal management component 410b through the third connecting pipe 63. After the medium has heat exchanged with the third battery module 31, the fourth battery module 32, the fifth battery module 33, the first battery module 21 and the second battery module 22 respectively, the medium located in the first thermal management part 420, the medium located in the second thermal management part 421, and the medium located in the third thermal management part 422 enter the collecting output flow channel 424, the medium located in the first thermal management component 410a enters the collecting output flow channel 424 through the second connecting pipe 62, and the medium located in the second thermal management component 410b enters the collecting output flow channel 424 through the fourth connecting pipe 64. That is, after the media in the flow channels of different parts converge in the collecting output flow channel 424, they pass through the sixth connecting pipe 66 and flow back to the vehicle end via the connector 81.

[0157] In some embodiments, referring to Figure 7, the collecting input flow channel 423 has a total medium inlet AA, a first upper layer inlet Aa, a second upper layer inlet Ab, a first lower layer inlet Ac, a second lower layer inlet Ad, and a third lower layer inlet Ae; the fifth connecting pipe 65 is connected to the total medium inlet AA, the first connecting pipe 61 is connected to the first upper layer inlet Aa, the third connecting pipe 63 is connected to the second upper layer inlet Ab, the first lower layer inlet Ac is connected to the internal flow channel of the first thermal management part 420, the second lower layer inlet Ad is connected to the internal flow channel of the second thermal management part 421, and the third lower layer inlet Ae is connected to the internal flow channel of the third thermal management part 422.

[0158] In some embodiments, referring to Figure 7, the collecting output flow channel 424 has a total medium outlet BA, a first upper layer outlet Ba, a second upper layer outlet Bb, a first lower layer outlet Bc, a second lower layer outlet Bd, and a third lower layer outlet Be; the sixth connecting pipe 66 is connected to the total medium outlet BA, the second connecting pipe 62 is connected to the first upper layer outlet Ba, the fourth connecting pipe 64 is connected to the second upper layer outlet Bb, the first lower layer outlet Bc is connected to the internal flow channel of the first thermal management part 420, the second lower layer outlet Bd is connected to the internal flow channel of the second thermal management part 421, and the third lower layer outlet Be is connected to the internal flow channel of the third thermal management part 422.

[0159] In the above scheme, by providing a connecting pipe 60, the first thermal management component 410a and the second thermal management component 410b located above the second layer of thermal management component 42 are effectively connected to the second layer of thermal management component 42, so that the medium can flow between the first layer of thermal management component 41 and the second layer of thermal management component 410, thereby effectively exchanging heat with the battery cells of each unit in the box 10, reducing the risk of thermal runaway of the battery 100, and making the battery 100 have higher reliability.

[0160] According to some embodiments of the present application, see Figures 6 and 7.

[0161] The second layer thermal management component 42 includes a first collecting area 425 and a second collecting area 426, which are respectively arranged corresponding to the first dividing beam 50 and the second dividing beam 51; at least part of the collecting input channel 423 is located in the first collecting area 425, and at least part of the collecting output channel 424 is located in the second collecting area 426.

[0162] The first current collecting area 425 may be located between the first thermal management unit 420 and the second thermal management unit 421 and corresponding to the first partition beam 50. The second current collecting area 426 may be located between the second thermal management unit 421 and the third thermal management unit 422 and corresponding to the second partition beam 51.

[0163] In some embodiments, the first collecting area 425 and the second collecting area 426 may be provided with through holes 4250 , and the first dividing beam 50 and the second dividing beam 51 may be fixed to the bottom wall of the tank shell 11 by means of bolts passing through the through holes 4250 .

[0164] The phrase "at least a portion of the manifold input channel 423 is located in the first manifold area 425" can be understood as meaning that at least a portion of the manifold input channel 423 can be located in the first manifold area 425 to reduce the occupancy of the flow channels of the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422. For example, a majority of the manifold input channel 423 is located in the first manifold area 425, such as where the manifold input channel 423 connects to the flow channels of the first thermal management component 410a, where the manifold input channel 423 connects to the flow channels of the first thermal management unit 420, and where the manifold input channel 423 connects to the flow channels of the second thermal management unit 421.

[0165] The phrase "at least a portion of the manifold output flow channel 424 is located in the second manifold area 426" can be understood as meaning that at least a portion of the manifold output flow channel 424 can be located in the second manifold area 426 to reduce the occupancy of the flow channels of the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422. For example, a majority of the manifold output flow channel 424 is located in the second manifold area 426. For example, the portion where the manifold output flow channel 424 connects to the flow channels of the second thermal management component 410b, the portion where the manifold output flow channel 424 connects to the flow channels of the third thermal management unit 422, and the portion where the manifold output flow channel 424 connects to the flow channels of the second thermal management unit 421 can be located in the first manifold area 425.

[0166] In the above scheme, by respectively arranging at least part of the collecting input flow channel 423 and at least part of the collecting output flow channel 424 in the first collecting area 425 and the second collecting area 426, the corresponding positions of the first separating beam 50 and the second separating beam 51 are utilized to reduce the space occupied by the first thermal management part 420, the second thermal management part 421 and the third thermal management part 422, thereby not affecting the thermal management effect of the third battery module 31, the fourth battery module 32 and the fifth battery module 33, effectively reducing the risk of thermal runaway of the battery 100, and making the battery 100 have higher reliability.

[0167] According to some embodiments of the present application, please refer to Figure 10, which is a schematic diagram of the box shell, the first partition beam and the second partition beam in some embodiments of the present application.

[0168] The first partition beam 50 and the second partition beam 51 are respectively formed with a receiving groove 52 , and the receiving groove 52 is used for embedding the connecting pipe 60 .

[0169] In some embodiments, the first separator beam 50 is plate-shaped, and a receiving groove 52 is formed on its surface in the second direction x. The connecting pipe 60 can be at least partially embedded in the receiving groove 52, thereby utilizing the space occupied by the first separator beam 50 and reducing the space occupied in the second direction x, thereby providing more space within the housing 10 for the battery cells. In some embodiments, the receiving groove 52 can penetrate the first separator beam 50 to accommodate the connecting pipe 60. In some embodiments, the receiving groove 52 may not penetrate the first separator beam 50, for example, the receiving groove 52 is only provided on the surface of the first separator beam 50 facing the second separator beam 51. In some embodiments, the connecting pipe 60 includes two pipe structures connected by a male-female joint. Part of the receiving groove 52 penetrates the first separator beam 50, while the other part does not. The portion of the receiving groove 52 that penetrates the first separator beam 50 can accommodate a larger male-female joint, while the portion of the receiving groove 52 that does not penetrate the first separator beam 50 can accommodate a smaller pipe structure.

[0170] In some embodiments, the first dividing beam 50 may be provided with three receiving grooves 52 corresponding to the first connecting pipe 61 , the second connecting pipe 62 , and the fifth connecting pipe 65 . The three receiving grooves 52 may be arranged at intervals.

[0171] In some embodiments, the second partition beam 51 is plate-shaped, and a receiving groove 52 is formed on its surface in the second direction x. The connecting pipe 60 can be at least partially embedded in the receiving groove 52, thereby utilizing the space occupied by the second partition beam 51 and reducing the space occupied in the second direction x, thereby providing more space within the housing 10 for the battery cells. In some embodiments, the receiving groove 52 can extend through the second partition beam 51 to accommodate the connecting pipe 60. In some embodiments, the receiving groove 52 may not extend through the second partition beam 51, for example, the receiving groove 52 is only provided on the surface of the second partition beam 51 facing the first partition beam 50. In some embodiments, the connecting pipe 60 includes two pipe structures connected by a male-female joint. Part of the receiving groove 52 extends through the second partition beam 51, while the other part does not. The portion of the receiving groove 52 that extends through the second partition beam 51 can accommodate a larger male-female joint, while the portion of the receiving groove 52 that does not extend through the second partition beam 51 can accommodate a smaller pipe structure.

[0172] In some embodiments, the second dividing beam 51 may be provided with three receiving grooves 52 corresponding to the third connecting pipe 63 , the fourth connecting pipe 64 , and the sixth connecting pipe 66 , and the three receiving grooves 52 may be arranged at intervals.

[0173] In the above scheme, by respectively providing a receiving groove 52 on the first partition beam 50 and the second partition beam 51, the connecting pipe 60 can utilize the space where the first partition beam 50 is located, thereby reducing the space occupied by the connecting pipe 60 for the battery cell, so that the box body 10 can load more battery cells, which is beneficial to the improvement of the volume energy density of the battery 100.

[0174] Some embodiments of the present application further provide a vehicle 1000 , which includes a vehicle body and the aforementioned battery 100 . The vehicle body has a beam 70 , and the avoidance portion 13 of the battery 100 is disposed corresponding to the beam 70 .

[0175] Vehicle 1000 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. The vehicle 1000 can be a sedan, an off-road vehicle, a heavy truck, or a bus. A battery 100 is provided inside the vehicle 1000. The battery 100 can be located at the bottom, head, or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as the operating power source of the vehicle 1000 and be used in the circuit system of the vehicle 1000, such as for the starting, navigation, and operating power requirements of the vehicle 1000.

[0176] The beam 70 is a structural member of the vehicle. In some embodiments, it can be a frame-like structure spanning the front and rear axles of the vehicle, commonly known as a beam, and serves as the backbone of the vehicle. The beam 70 can support and connect various assemblies within the vehicle, ensuring they maintain relative positioning and bearing various internal and external loads.

[0177] See Figure 3. In some embodiments, the vehicle beam 70 may include two longitudinal beams 71 spaced apart from each other, and the two longitudinal beams 71 may be spaced apart from each other along the second direction x. The avoidance portion 13 may avoid the two longitudinal beams 71 so that the battery 100 can utilize the space beside the longitudinal beams 71.

[0178] Exemplarily, the avoidance portion 13 may include a first groove 130 and a second groove 131 respectively provided corresponding to the longitudinal beams 71 . The first groove 130 can accommodate one of the longitudinal beams 71 , and the second groove 131 can accommodate the other longitudinal beam 71 .

[0179] In the above solution, the battery cells and the battery management unit 80 inside the battery 100 can utilize the space on the side of the vehicle beam 70, so that the capacity of the battery 100 is larger, and the endurance of the vehicle 1000 is longer.

[0180] According to some embodiments of the present application, when projected along the second direction x, the projection of the first layer of battery cells 20 at least partially overlaps with the projection of the vehicle beam 70 .

[0181] In some embodiments, the projections of all the cells of the first layer of cells 20 in the second direction x may fall on the beam 70 . In some embodiments, the projections of some of the cells of the first layer of cells 20 in the second direction x may fall on the beam 70 .

[0182] In the above solution, the first layer of battery cells 20 can utilize the space on the side of the vehicle 1000, so that the box 10 can carry more battery cells, improve the space utilization of the battery 100, and help improve the volume energy density of the battery 100, thereby extending the range of the vehicle 1000.

[0183] According to some embodiments of the present application, when projected along the second direction x, the projection of the battery management unit 80 at least partially overlaps with the projection of the vehicle beam 70 .

[0184] In some embodiments, the projection of the battery management unit 80 in the second direction x may partially or completely fall on the vehicle beam 70 .

[0185] In the above solution, the battery management unit 80 can utilize the space on the side of the vehicle beam 70, reducing the space occupied by the battery management unit 80 for the battery cells, so that the box 10 can install more battery cells, improving the space utilization of the battery 100, and making the volume energy density of the battery 100 high.

[0186] According to some embodiments of the present application, a battery 100 is provided, see Figures 2 to 10 .

[0187] The battery 100 includes a housing 10 , a battery management unit 80 , a first layer of battery cells 20 , a second layer of battery cells 30 , and a thermal management assembly 40 .

[0188] The box body 10 includes a box shell 11 and a box cover 12. The box shell 11 has an opening, and the box cover 12 covers the opening along a first direction z. The first direction z can be regarded as a vertical direction.

[0189] The box cover 12 is recessed toward the box shell 11 to form a first groove 130 and a second groove 131, which are spaced apart along the second direction x. The first groove 130 is used to accommodate one longitudinal beam 71 of the vehicle body, and the second groove 131 is used to accommodate another longitudinal beam 71.

[0190] The battery management unit 80 , the first layer of battery cells 20 , the second layer of battery cells 30 , and the thermal management assembly 40 are located in the box 10 .

[0191] The first layer of battery cells 20 includes a first battery module 21 and a second battery module 22. The first battery module 21 and the second battery module 22 are arranged at intervals along the second direction x. The first battery module 21 is located on the side of the first groove 130 away from the second groove 131, and the second battery module 22 is located on the side of the second groove 131 away from the first groove 130.

[0192] The battery management unit 80 is located in the first groove 130 and the second groove 131 , and the battery management unit 80 exceeds the bottom of the first groove 130 and the bottom of the second groove 131 in the first direction z.

[0193] The second layer of battery cells 30 is located below the first layer of battery cells 20 and includes a third battery module 31, a fourth battery module 32, and a fifth battery module 33. The third battery module 31 is located below the first battery module 21, the fourth battery module 32 is located below the battery management unit 80, and the fifth battery module 33 is located below the second battery module 22. A partition may be provided between the third battery module 31 and the first battery module 21 to separate them. A partition may be provided between the fourth battery module 32 and the battery management unit 80 to separate them. A partition may be provided between the fifth battery module 33 and the second battery module 22 to separate them.

[0194] The thermal management assembly 40 includes a first-layer thermal management component 41 and a second-layer thermal management component 42. The first-layer thermal management component 41 is provided for the first-layer battery cells 20, and the second-layer thermal management component 42 is provided for the second-layer battery cells 30. The first-layer thermal management component 41 includes a first thermal management element 410a and a second thermal management element 410b. The first thermal management element 410a supports the first battery module 21 and regulates the temperature of the first battery module 21. The second thermal management element 410b supports the second battery module 22 and regulates the temperature of the second battery module 22. The second-layer thermal management component 42 is a single plate-shaped structure that includes, by function, a first thermal management element 420, a second thermal management element 421, and a third thermal management element 422. The first thermal management element 420 supports the third battery module 31, the second thermal management element 421 supports the fourth battery module 32, and the third thermal management element 422 supports the fourth battery module 32.

[0195] The thermal management component 40 can adjust the temperature of the battery cell by means of medium flow heat exchange. The connector 81 for the medium entering and exiting the thermal management component 40 can be provided on the battery management unit 80, that is, the connector 81 can be located between the first groove 130 and the second groove 131, that is, the connector 81 can be located between the two longitudinal beams 71.

[0196] In some embodiments, the first layer of thermal management components 41 and the second layer of thermal management components 42 may both be rolled components. For example, the first layer of thermal management components 41 may be formed by stacking two plate-like components, with grooves rolled out on the surfaces of the plate-like components to form flow channels for the medium.

[0197] In some embodiments, the first thermal management component 410a, the second thermal management component 410b, the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422 can be arranged in parallel. For example, in one parallel arrangement, the second thermal management component 42 has a manifold input channel 423, and the flow channel inlets inside the first thermal management component 410a, the second thermal management component 410b, the second thermal management unit 421, and the third thermal management unit 422 are respectively connected to the manifold input channel 423; the second thermal management component 42 includes a manifold output channel 424, and the flow channel outlets inside the first thermal management component 410a, the second thermal management component 410b, the first thermal management unit 420, the second thermal management unit 421, and the third thermal management unit 422 are respectively connected to the manifold output channel 424. The connector 81 used for connecting to the vehicle end to achieve medium circulation is in communication with the manifold input channel 423 and the manifold output channel 424 through the connecting pipe 60.

[0198] In other embodiments, the first thermal management member 410 a , the second thermal management member 410 b , the first thermal management portion 420 , the second thermal management portion 421 , and the third thermal management portion 422 may be arranged in series.

[0199] In the above solution, by arranging the first battery module 21 and the second battery module 22 on either side of the escape portion 13, the space beside the vehicle 1000's beam 70 can be effectively utilized, allowing the housing 10 to accommodate more battery cells, improving the space utilization of the battery 100 and facilitating an increase in the volumetric energy density of the battery 100. Furthermore, by arranging the battery management unit 80 between the first battery module 21 and the second battery module 22 and offsetting it from the escape portion 13 along the second direction x, the battery management unit 80 effectively utilizes the space between the two longitudinal beams 71 of the beam 70, reducing the space occupied by the battery management unit 80 on the battery cells. This allows the housing 10 to accommodate more battery cells, improving the space utilization of the battery 100 and achieving a high volumetric energy density. Furthermore, by providing the thermal management assembly 40, the temperature of each battery cell within the housing 10 can be effectively regulated and managed, minimizing the risk of thermal runaway of the battery 100 and enhancing the reliability of the battery 100.

[0200] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A battery for use in a vehicle, wherein: include: The box body comprises a box shell and a box cover, wherein the box shell has an opening, the box cover covers the opening along a first direction, and the box cover is provided with an avoidance portion, wherein the avoidance portion is used to avoid the vehicle beam; A first layer of battery cells and a second layer of battery cells are disposed in the box and stacked along the first direction, the first layer of battery cells being closer to the box cover than the second layer of battery cells, the first layer of battery cells including a first battery module and a second battery module located on both sides of the avoidance portion along the second direction, the first direction and the second direction being perpendicular to each other; A battery management unit is disposed in the box, and the battery management unit is located between the first battery module and the second battery module and is offset from the avoidance portion along the second direction.

2. The battery according to claim 1, wherein The avoidance portion includes a first groove and a second groove spaced apart along the second direction, the first groove and the second groove are formed by the box cover being recessed toward the box shell, the first groove and the second groove are respectively used to avoid the two longitudinal beams of the vehicle beam, and the battery management unit is located between the first groove and the second groove.

3. The battery according to claim 2, wherein The battery further includes a connector connected to the battery management unit and used to be connected to a vehicle end so that the battery is electrically or fluidically connected to the vehicle body. The connector is located between the first groove and the second groove.

4. The battery according to any one of claims 1 to 3, wherein: The battery also includes a thermal management assembly, which includes a first layer of thermal management components and a second layer of thermal management components stacked along the first direction. The first layer of thermal management components includes two thermal management components separated from each other. The two thermal management components are respectively located on both sides of the battery management unit along the second direction to respectively adjust the temperature of the first battery module and the second battery module. The second layer of thermal management components is used to adjust the battery cells away from the second layer.

5. The battery according to claim 4, wherein The second layer of battery cells includes a third battery module, a fourth battery module, and a fifth battery module sequentially arranged along the second direction, wherein along the first direction, a projection of the first battery module and a projection of the third battery module at least partially overlap, and a projection of the second battery module and a projection of the fifth battery module at least partially overlap; The battery further includes a first partition beam and a second partition beam, wherein the first partition beam is disposed between the third battery module and the fourth battery module, and the second partition beam is disposed between the fourth battery module and the fifth battery module.

6. The battery according to claim 5, wherein The first battery module, the second battery module, the third battery module, the fourth battery module and the fifth battery module are all connected to the battery management unit.

7. The battery according to claim 5 or 6, wherein The thermal management component has a flow channel inside, and the flow channel is used to accommodate a medium to adjust the temperature of the battery cell; The flow channels inside the two heat management components are respectively communicated with the flow channels inside the second layer of heat management components.

8. The battery according to claim 7, wherein The second-layer thermal management component includes a first thermal management part, a second thermal management part, and a third thermal management part. The first thermal management part, the second thermal management part, and the third thermal management part are respectively arranged corresponding to the third battery module, the fourth battery module, and the fifth battery module. The flow channels inside the first thermal management part, the flow channels inside the second thermal management part, and the flow channels inside the third thermal management part are interconnected.

9. The battery according to claim 8, wherein The two thermal management components, the first thermal management unit, the second thermal management unit and the third thermal management unit are arranged in parallel; or, The two thermal management components are arranged in series with the second layer of thermal management components.

10. The battery according to claim 8 or 9, wherein The second layer of heat management component includes two plate-shaped members stacked along the first direction, and the two plate-shaped members together form a flow channel inside the second layer of heat management component.

11. The battery according to claim 9 or 10, wherein The second layer of thermal management components has a collecting input flow channel, and the flow channel inlets inside the two thermal management components, the first thermal management part, the second thermal management part and the third thermal management part are respectively connected to the collecting input flow channel; and / or, The second layer of thermal management components includes a collecting output flow channel, and flow channel outlets inside the two thermal management elements, the first thermal management portion, the second thermal management portion, and the third thermal management portion are respectively communicated with the collecting output flow channel.

12. The battery according to claim 11, wherein The two thermal management components include a first thermal management component and a second thermal management component, and the battery also includes a connecting pipe. The first thermal management component and the second thermal management component are respectively connected to the collecting input flow channel through different connecting pipes, and / or the first thermal management component and the second thermal management component are respectively connected to the collecting output flow channel through different connecting pipes.

13. The battery according to claim 12, wherein The second layer of thermal management components includes a first current collecting area and a second current collecting area, wherein the first current collecting area and the second current collecting area are respectively arranged corresponding to the first dividing beam and the second dividing beam; At least a portion of the current collecting input channel is located in the first current collecting area, and at least a portion of the current collecting output channel is located in the second current collecting area.

14. The battery according to claim 13, wherein The first partition beam and the second partition beam are respectively formed with an accommodating groove, and the accommodating groove is used to embed the connecting pipe.

15. A vehicle, wherein: A vehicle body having a vehicle beam; The battery according to any one of claims 1 to 14, wherein the avoidance portion of the battery is arranged corresponding to the vehicle beam.

16. The vehicle of claim 15, wherein: Projected along the second direction, the projection of the first layer of battery cells at least partially overlaps with the projection of the vehicle beam.

17. A vehicle according to claim 15 or 16, wherein: Projected along the second direction, the projection of the battery management unit overlaps with at least a portion of the projection of the vehicle beam.

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