Battery and electric device

Abstract

The present application provides a battery and an electric device. The battery comprises a battery module and a heat exchange component, the battery module comprises a plurality of battery cells, and gaps are formed between adjacent battery cells. The heat exchange component comprises a manifold and a plurality of nozzles, the manifold is located on one side of the plurality of battery cells in a first direction, a flow channel for a heat exchange medium to flow is provided in the manifold, and the plurality of nozzles are connected to the manifold and face the battery cells. In the first direction, the projections of the nozzles at least partially overlap the projections of the gaps.

Description

Batteries and electrical devices

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410220122.5, filed on February 28, 2024, entitled “Battery and Electrical Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a battery and an electrical device. Background Art

[0004] With the development of new energy technology, batteries are used more and more widely, for example, in mobile phones, laptops, electric vehicles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes and power tools.

[0005] Batteries typically have heat exchange components to exchange heat between battery cells. The efficiency of heat exchange significantly impacts reliable battery operation. Therefore, effectively improving heat exchange efficiency is a pressing issue in battery technology.

[0006] Summary of the Invention

[0007] In view of the above problems, the present application provides a battery and an electrical device that can effectively improve the heat exchange efficiency of the battery.

[0008] In a first aspect, embodiments of the present application provide a battery comprising a battery module and a heat exchange component. The battery module comprises a plurality of battery cells, with gaps formed between adjacent battery cells. The heat exchange component comprises a current collector and a plurality of nozzles. The current collector is positioned on one side of the plurality of battery cells along a first direction, and has a flow channel disposed within the current collector for flow of a heat exchange medium. The plurality of nozzles are connected to the current collector and directed toward the battery cells. In the first direction, the projection of the nozzles at least partially overlaps the projection of the gap.

[0009] The nozzle of the above technical solution can directly spray the heat exchange medium into the gap formed between adjacent battery cells, so that the heat exchange medium can enter the gap more accurately and exchange heat in the hot spots of multiple battery cells around the gap, so that the heat exchange medium can be fully utilized, the utilization rate of the heat exchange medium is improved, and the waste of the heat exchange medium is reduced, thereby effectively improving the heat exchange efficiency of the battery.

[0010] In some embodiments of the first aspect, at least a portion of the nozzle is received within the slit.

[0011] The above technical solution, on the one hand, can reduce the space occupied by the heat exchange components in the battery, which is beneficial to improving the energy density of the battery; on the other hand, it can further improve the accuracy of the heat exchange medium sprayed from the nozzle entering the gap, thereby further improving the utilization rate of the heat exchange medium.

[0012] In some embodiments of the first aspect, the nozzle is provided with a plurality of spray holes.

[0013] The spray holes can improve the dispersion of the heat exchange medium sprayed from the nozzle, thereby increasing the effective contact area between the unit heat exchange medium and the battery cell, thereby further improving the heat exchange efficiency of the battery.

[0014] In some embodiments of the first aspect, the nozzle includes a main body and a spraying part, the main body is connected to the current collecting member, the spraying part is connected to an end of the main body away from the current collecting member, and the spraying part is provided with a spray hole.

[0015] The above technical solution can further improve the accuracy of the heat exchange medium sprayed from the nozzle entering the gap by arranging the spray part with the spray hole close to the battery cell, thereby further improving the utilization rate of the heat exchange medium.

[0016] In some embodiments of the first aspect, in a direction approaching the battery cell, a size of the spray portion in a direction perpendicular to the first direction gradually decreases.

[0017] On the one hand, it is conducive to the centralized spraying of heat exchange medium, increasing the output rate of heat exchange medium, thereby improving the heat exchange efficiency of battery cells; on the other hand, it can also reduce the space occupancy rate of the spray part, reduce the risk of interference between the spray part and battery cells, and further improve the energy density of the battery.

[0018] In some embodiments of the first aspect, the main body portion and the spray portion are detachably connected.

[0019] The above technical solution not only improves the maintenance efficiency and reliability of heat exchange components, but also provides significant advantages in cost control, flexibility and practicality.

[0020] In some embodiments of the first aspect, the battery module further includes a first bracket connected to a side of the plurality of battery cells facing away from the heat exchange component.

[0021] The above technical solution can effectively improve the structural stability and mechanical strength of the battery module, make the performance of the battery cell more stable, reduce the failure rate, and thus help improve the reliability of the entire battery.

[0022] In some embodiments of the first aspect, the first bracket includes a plurality of positioning grooves, which are recessed relative to a surface of the first bracket on one side close to the battery cell. The plurality of positioning grooves are arranged in a one-to-one correspondence with the plurality of battery cells, and at least a portion of the battery cell is arranged in the positioning grooves.

[0023] The above technical solution can improve the assembly efficiency between the battery cell and the first bracket by setting the positioning groove; on the other hand, the positioning groove can limit the battery cell to improve the stability of the battery cell, effectively reducing the risk of damage to the battery cell due to physical movement or collision.

[0024] In some embodiments of the first aspect, an exhaust hole is provided in the positioning groove, and the exhaust hole passes through the first bracket along the first direction.

[0025] The above technical solution, by providing exhaust holes in the positioning grooves, can not only regulate the pressure inside the battery to maintain the pressure balance inside the battery, which helps to maintain the stable operation of the battery cell and improve its life; it can also effectively release the internal pressure when the battery cell has thermal runaway or other abnormal conditions, preventing battery damage, thereby greatly improving the reliability of the battery.

[0026] In some embodiments of the first aspect, the battery module further includes a second bracket connected to a side of the heat exchange component facing away from the plurality of battery cells.

[0027] The above technical solution can effectively improve the structural stability and mechanical strength between the heat exchange component and the battery module, thereby helping to improve the reliability of the entire battery.

[0028] In some embodiments of the first aspect, at least a portion of the current collecting member is embedded in the second bracket.

[0029] By at least partially embedding the current collecting member into the second bracket, this integrated design optimizes the space utilization of the battery module, while also providing additional mechanical protection for the current collecting member and reducing the risk of damage caused by external environmental factors.

[0030] In some embodiments of the first aspect, the second bracket includes a plurality of positioning holes, which penetrate the second bracket along the first direction. The plurality of positioning holes are arranged in a one-to-one correspondence with the plurality of battery cells, and at least a portion of the battery cells is located in the positioning holes.

[0031] The above technical solution can improve the assembly efficiency between the battery cell and the second bracket by setting the positioning holes. On the other hand, the positioning holes can limit the battery cell to improve the stability of the battery cell and effectively reduce the risk of damage to the battery cell due to physical movement or collision.

[0032] In some embodiments of the first aspect, the flow collecting member includes a pipeline portion and a connecting portion that communicate with each other. The connecting portion is disposed at one end of the pipeline portion along the second direction, and the first direction intersects the second direction. The connecting portion has a greater rigidity than the pipeline portion, and is provided with an interface for connecting to a component providing a heat exchange medium. The plurality of nozzles are connected to the pipeline portion.

[0033] The current collecting member in the above technical solution can provide stable heat exchange medium transportation while also improving the connection firmness between the current collecting member and the component providing the heat exchange medium, thereby improving the overall reliability of the battery.

[0034] In some embodiments of the first aspect, the connecting portion protrudes from a side of the pipe portion close to the plurality of battery cells.

[0035] The above technical solution can not only protect the pipeline part, but also reduce the space occupied by the connecting part in the internal space of the battery, which is beneficial to improving the energy density of the battery and improving the structural stability of the battery cell.

[0036] In some embodiments of the first aspect, the connecting portion extends along the third direction, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0037] The coverage area of ​​the connection portion can be further increased to improve the structural strength of the connection portion, as well as the protection effect on the pipeline portion and the limiting effect on the battery cell.

[0038] In some embodiments of the first aspect, there are multiple battery modules, there are multiple heat exchange components, and the multiple heat exchange components are arranged in a one-to-one correspondence with the multiple battery modules.

[0039] Each of the multiple battery modules in the above technical solution is equipped with a dedicated heat exchange component, so that each battery module can obtain more effective heat exchange, thereby further improving the heat exchange efficiency of the battery.

[0040] In some embodiments of the first aspect, the battery further includes a detection component connected to each battery module and configured to detect a temperature of each battery module.

[0041] The installation of a detection component can, on the one hand, improve the accuracy of battery thermal management and enable targeted heat exchange based on the temperature of each battery module. This helps further improve the utilization rate of the heat exchange medium and further reduces heat exchange medium waste, thereby further improving the battery's heat exchange efficiency. Furthermore, the temperature data obtained by the detection component can also provide data information to the battery management system to optimize battery performance and extend its service life.

[0042] In some embodiments of the first aspect, the battery further includes a control component, which is connected to the detection component and the heat exchange component of each battery module, and the control component is configured to turn on the heat exchange component corresponding to the battery module when the temperature value of the battery module obtained by the detection component reaches a first threshold.

[0043] The above technical solution sets up control components, and the automated response mechanism enables the heat exchange components to respond immediately to temperature fluctuations of the battery module, thereby optimizing energy efficiency and enhancing battery reliability.

[0044] In some embodiments of the first aspect, the battery further comprises a casing, in which the battery module and the heat exchange component are housed. The casing is provided with an inlet and an outlet, wherein the inlet is connected to the current collecting member, and the outlet connects the interior of the casing with the exterior.

[0045] By introducing a casing, the above technical solution can, on the one hand, effectively integrate and protect the battery modules and heat exchange components to improve the overall reliability and durability of the battery; on the other hand, the casing can also block and collect the heat exchange medium sprayed from the nozzle, reducing the impact of the heat exchange medium on related devices outside the battery and the pollution caused to the external environment.

[0046] In some embodiments of the first aspect, the box includes a bottom plate and side plates connected to each other, and the heat exchange component is disposed on a side of the plurality of battery cells facing away from the bottom plate.

[0047] The above technical solution can further improve the utilization efficiency of the heat exchange medium and thus further improve the heat exchange efficiency of the battery by arranging the heat exchange component on the side of the multiple battery cells facing away from the bottom plate.

[0048] In some embodiments of the first aspect, the inlet and the outlet are disposed on the side panel.

[0049] The above technical solution is beneficial to improving the energy density of the battery on the one hand, and can further improve the utilization efficiency of the heat exchange medium on the other hand.

[0050] In some embodiments of the first aspect, the outlet is disposed close to the bottom plate in the first direction to further improve the efficiency of discharging the heat exchange medium from the outlet to the outside of the battery.

[0051] In some embodiments of the first aspect, the housing further comprises a partition, the partition being connected to at least one of the bottom plate and the side plate, and forming a plurality of accommodating cavities within the housing. A plurality of battery modules are disposed in the plurality of accommodating cavities, respectively. A through slot is defined on a side of the partition proximate to the bottom plate, extending through the partition along its thickness, and the plurality of accommodating cavities are interconnected via the through slot.

[0052] The above technical solution, by providing a partition, can reduce interference and thermal impact between two adjacent battery modules. By providing through grooves in the partition, the heat exchange medium can flow between two adjacent cavities through the through grooves, thereby reducing the overall structural complexity of the battery and helping to reduce costs. In addition, the through grooves allow air and heat inside the box to flow and exchange between multiple cavities, helping to balance and disperse the heat generated by multiple battery modules, avoiding the generation of local hot spots, and thus improving battery reliability.

[0053] In some embodiments of the first aspect, the battery further comprises a circulation assembly, the circulation assembly comprising a first power component and a storage component, the first power component being connected between the inlet and the storage component, and the storage component being connected to the outlet.

[0054] The above technical solution can circulate the heat exchange medium by providing a circulation component, thereby further improving the utilization efficiency of the heat exchange medium and reducing costs.

[0055] In some embodiments of the first aspect, the circulation assembly further comprises a second power component connected between the outlet and the storage component.

[0056] The above technical solution can improve the transmission efficiency of the heat exchange medium accumulated inside the box to the storage component by setting a second power component, so that the performance of the circulation component is further improved and the circulation of the heat exchange medium of the battery can be more effectively managed.

[0057] In some embodiments of the first aspect, the battery cell is a cylindrical battery cell.

[0058] In a second aspect, the present application provides an electrical device, which includes a battery provided by any embodiment of the first aspect, and the battery is used to provide electrical energy.

[0059] 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

[0060] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0061] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0062] FIG2 is a schematic diagram of a three-dimensional structure of a battery provided in some embodiments of the present application;

[0063] FIG3 is a schematic side view of a battery provided in some embodiments of the present application;

[0064] FIG4 is a schematic cross-sectional view of the structure along AA in FIG3 ;

[0065] FIG5 is a schematic cross-sectional view of the structure along line BB in FIG3 ;

[0066] FIG6 is a schematic structural diagram of a nozzle of a battery provided by some embodiments of the present application, along a direction perpendicular to a first direction;

[0067] FIG7 is a schematic structural diagram of a nozzle of a battery provided by some embodiments of the present application along a first direction;

[0068] FIG8 is a schematic structural diagram of a first bracket of a battery provided in some embodiments of the present application;

[0069] FIG9 is a schematic diagram of an exploded structure of a second support and a current collector of a battery provided by some embodiments of the present application;

[0070] FIG10 is a schematic diagram of an exploded structure of another battery provided in some embodiments of the present application;

[0071] FIG11 is a schematic diagram of the three-dimensional structure of another battery provided in some embodiments of the present application.

[0072] The accompanying drawings in the specific implementation manner are as follows:

[0073] 1. Vehicle; 2. Battery; 3. Controller; 4. Motor;

[0074] 10. Battery module; 11. Battery cell; 12. Gap; 13. First bracket; 131. Positioning groove; 132. Exhaust hole; 14. Second bracket; 141. Positioning hole;

[0075] 20. Heat exchange component; 21. Current collector; 211. Pipeline; 212. Connector; 213. Interface; 22. Nozzle; 221. Spray hole; 222. Main body; 223. Spraying part;

[0076] 30. Detection component; 40. Control component; 50. Box body; 51. Inlet; 52. Outlet; 53. Side panel; 54. Bottom panel; 55. Partition; 551. Through slot; 60. Circulation assembly; 61. First power component; 62. Storage component; 63. Second power component; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0077] 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 accompanying 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0083] The term "plurality" used in this application refers to two or more (including two).

[0084] In this application, the term "parallel" includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; at the same time, "vertical" also includes not only the absolutely vertical situation, but also the roughly vertical situation conventionally recognized in engineering.

[0085] In this application, battery cells may include lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells, or magnesium-ion battery cells, and the embodiments of this application are not limited thereto. Battery cells may be cylindrical, flat, rectangular, or in other shapes, and the embodiments of this application are not limited thereto.

[0086] The battery mentioned in the embodiments of the present application may include one or more battery cells to provide a single physical module with higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, in parallel or in hybrid through a busbar.

[0087] 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.

[0088] 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.

[0089] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0090] In some embodiments, the battery may be an energy storage device, including an energy storage container, an energy storage cabinet, and the like.

[0091] With the development of new energy technology, batteries are used more and more widely, for example, in mobile phones, laptops, electric vehicles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes and power tools.

[0092] Batteries typically incorporate heat exchange components to exchange heat between battery cells. The efficiency of heat exchange significantly impacts reliable operation. For example, the current method of using heat exchange plates to exchange heat between battery cells uses heat exchange media to exchange heat with the cells through the plates, resulting in low heat exchange efficiency. Spraying, on the other hand, typically involves directly spraying the entire battery interior, consuming a significant amount of heat exchange media, resulting in significant waste, low utilization, and low heat exchange efficiency.

[0093] Based on the above considerations, the present application designs a battery comprising a battery module and a heat exchange component. The battery module comprises multiple battery cells, with gaps formed between adjacent battery cells. The heat exchange component comprises a current collector and multiple nozzles. The current collector is positioned on one side of the multiple battery cells along a first direction, and has a flow channel within the current collector for the flow of a heat exchange medium. The multiple nozzles are connected to the current collector and face the battery cells. In the first direction, the projection of the nozzles at least partially overlaps the projection of the gap.

[0094] The nozzle of the above technical solution can directly spray the heat exchange medium into the gap formed between adjacent battery cells, so that the heat exchange medium can enter the gap more accurately and exchange heat in the hot spots of multiple battery cells around the gap, so that the heat exchange medium can be fully utilized, the utilization rate of the heat exchange medium is improved, and the waste of the heat exchange medium is reduced, thereby effectively improving the heat exchange efficiency of the battery.

[0095] The technical solutions described in the embodiments of the present application are applicable to batteries and electrical devices using batteries.

[0096] Electrical devices include, but are not limited to, vehicles, mobile phones, portable devices, laptop computers, ships, spacecraft, electric toys, and electric tools. Vehicles include, but are not limited to, gasoline-powered vehicles, gas-powered vehicles, or new energy vehicles; new energy vehicles include, but are not limited to, pure electric vehicles, hybrid vehicles, or extended-range vehicles; spacecraft include, but are not limited to, airplanes, rockets, space shuttles, and spacecraft; electric toys include, but are not limited to, fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys; and electric tools include, but are not limited to, metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0097] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the batteries and electrical equipment described above, but can also be applied to all batteries including battery boxes and electrical equipment using batteries. However, for the sake of simplicity, the following embodiments are explained using electric vehicles as an example.

[0098] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application.

[0099] 1 , a battery 2 is provided inside the vehicle 1 , and the battery 2 may be provided at the bottom, head, or tail of the vehicle 1 . The battery 2 may be used to power the vehicle 1 , for example, the battery 2 may serve as an operating power source for the vehicle 1 .

[0100] The vehicle 1 may further include a controller 3 and a motor 4 . The controller 3 is used to control the battery 2 to supply power to the motor 4 , for example, to meet the power requirements of the vehicle 1 during startup, navigation, and driving.

[0101] In some embodiments of the present application, the battery 2 can not only serve as the operating power source of the vehicle 1, but also serve as the driving power source of the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0102] Figure 2 is a schematic diagram of the three-dimensional structure of a battery provided in some embodiments of the present application, Figure 3 is a schematic diagram of the side view structure of a battery provided in some embodiments of the present application, Figure 4 is a schematic diagram of the cross-sectional structure along AA in Figure 3, and Figure 5 is a schematic diagram of the cross-sectional structure along BB in Figure 3.

[0103] Continuing with reference to Figures 2 to 5 , an embodiment of the present application provides a battery 2, comprising a battery module 10 and a heat exchange component 20. The battery module 10 comprises a plurality of battery cells 11, with gaps 12 formed between adjacent battery cells 11. The heat exchange component 20 comprises a current collector 21 and a plurality of nozzles 22. The current collector 21 is positioned to one side of the plurality of battery cells 11 along a first direction X, and has a flow channel provided therein for the flow of a heat exchange medium. The plurality of nozzles 22 are connected to the current collector 21 and face the battery cells 11. In the first direction X, the projections of the nozzles 22 at least partially overlap with the projections of the gaps 12.

[0104] For example, the battery cell 11 may be, but is not limited to, a cylindrical battery cell or a square battery cell 11 . To more clearly illustrate the embodiments of the present application, the battery cell 11 is described below as a cylindrical battery cell.

[0105] The multiple battery cells 11 can be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 11. The multiple battery cells 11 in the battery module 10 can be directly connected in series, in parallel, or in a hybrid connection. Alternatively, they can be electrically connected via a busbar to achieve parallel, series, or hybrid connection of the multiple battery cells 11 in the battery module 10.

[0106] The gap 12 formed between adjacent battery cells 11 can be a linear gap 12 formed between two adjacent battery cells 11, or a regional gap 12 surrounded by multiple adjacent battery cells 11. As an example, multiple battery cells 11 are distributed in an array, and each group of four adjacent battery cells 11 in the multiple battery cells 11 can enclose a central space. This central space is the gap 12 referred to in the embodiments of the present application.

[0107] The nozzle 22 can be detachably connected to the current collecting member 21 or integrally provided on the current collecting member 21. The nozzle 22 can be directly connected to the current collecting member 21 or secured to the current collecting member 21 by other components. As an example, the connection between the nozzle 22 and the current collecting member 21 can be, but is not limited to, bolting, welding, riveting, clamping, or bonding.

[0108] Optionally, the current collecting member 21 may be, but is not limited to, a plate-shaped structure or a pipe-shaped structure.

[0109] Optionally, the current collecting member 21 and the nozzle 22 may be made of, but are not limited to, metal or non-metal materials. For example, the metal material may be copper, copper alloy, aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, or stainless steel, and the non-metal material may be ceramic, polyethylene, polypropylene, polyvinyl chloride, polyimide, or polyamide. As an example, the current collecting member 21 and the nozzle 22 may be made of the same material to simplify the manufacturing process and reduce costs.

[0110] Optionally, the current collecting member 21 and the nozzle 22 are integrally formed. This simplifies the manufacturing process by eliminating the need for an additional joining process. Furthermore, the integral structure provides a stronger connection between the current collecting member 21 and the nozzle 22 than would be achieved by an additional joining process.

[0111] In the first direction X, the projection of the nozzle 22 at least partially overlaps with the projection of the slit 12. It can be understood that in the first direction X, the projection of the nozzle 22 partially overlaps with the projection of the slit 12, or the projection of the nozzle 22 completely overlaps with the projection of the slit 12.

[0112] The nozzle 22 of the above technical solution can directly spray the heat exchange medium toward the gap 12 formed between adjacent battery cells 11, so that the heat exchange medium can enter the gap 12 more accurately, and perform heat exchange on the hot spots of multiple battery cells 11 around the gap 12, so that the heat exchange medium can be fully utilized, thereby improving the utilization rate of the heat exchange medium and reducing the waste of the heat exchange medium, thereby effectively improving the heat exchange efficiency of the battery 2.

[0113] In some embodiments, at least a portion of nozzle 22 is received within slit 12 .

[0114] For example, a portion of the nozzle 22 may be accommodated in the slit 12 , or the nozzle 22 may be completely accommodated in the slit 12 .

[0115] The above technical solution, on the one hand, can reduce the space occupied by the heat exchange component 20 in the battery 2, which is beneficial to improving the energy density of the battery 2; on the other hand, it can further improve the accuracy of the heat exchange medium sprayed by the nozzle 22 entering the gap 12, thereby further improving the utilization rate of the heat exchange medium.

[0116] Figure 6 is a schematic structural diagram of a nozzle 22 of a battery 2 provided in some embodiments of the present application along a direction perpendicular to the first direction X, and Figure 7 is a schematic structural diagram of a nozzle 22 of a battery 2 provided in some embodiments of the present application along the first direction X.

[0117] 6 and 7 , in some embodiments, the nozzle 22 is provided with a plurality of spray holes 221 .

[0118] The spray holes 221 can improve the dispersion of the heat exchange medium sprayed from the nozzle, thereby increasing the effective contact area between the unit heat exchange medium and the battery cell 11, thereby further improving the heat exchange efficiency of the battery 2.

[0119] In some embodiments, the nozzle 22 includes a main body 222 and a spraying part 223 . The main body 222 is connected to the current collecting member 21 . The spraying part 223 is connected to one end of the main body 222 away from the current collecting member 21 . The spraying part 223 is provided with a spray hole 221 .

[0120] Exemplarily, the spray portion 223 is connected to an end of the main body 222 away from the current collecting member 21. In other words, the spray portion 223 is arranged relative to the main body 222 and closer to the battery cell 11. The spray portion 223 can be detachably connected to the main body 222 or integrally provided on the main body 222. The spray portion 223 can be directly connected to the main body 222 or restricted to the main body 222 by other components. As an example, the connection method between the spray portion 223 and the main body 222 can be, but is not limited to, bolt connection, welding, riveting, clamping or bonding.

[0121] Optionally, the spray portion 223 and the main body 222 are integrally formed. This eliminates the need for an additional joining process to connect the spray portion 223 and the main body 222, simplifying the manufacturing process. Furthermore, compared to connecting the spray portion 223 and the main body 222 through an additional joining process, the integral structure provides a stronger connection between the spray portion 223 and the main body 222.

[0122] The above technical solution can further improve the accuracy of the heat exchange medium sprayed from the nozzle 22 entering the gap 12 by arranging the spray part 223 with the spray hole 221 close to the battery cell 11, thereby further improving the utilization rate of the heat exchange medium.

[0123] In some embodiments, the size of the shower portion 223 in a direction perpendicular to the first direction X gradually decreases in a direction approaching the battery cell 11 .

[0124] The size of the spray portion 223 in the direction perpendicular to the first direction X gradually decreases in the direction approaching the battery cell 11. On the one hand, it is conducive to the concentrated spraying of the heat exchange medium, increasing the output rate of the heat exchange medium, and thus improving the heat exchange efficiency of the battery cell 11; on the other hand, it can also reduce the space occupancy rate of the spray portion 223, reduce the risk of interference between the spray portion 223 and the battery cell 11, and further improve the energy density of the battery 2.

[0125] In some embodiments, the main body 222 and the spraying portion 223 are detachably connected to facilitate replacement of the spraying portion 223 , thereby improving assembly efficiency and reducing costs.

[0126] For example, the detachable connection between the main body 222 and the spray portion 223 allows for easy separation and reconnection when the heat exchange component 20 requires maintenance or component replacement, significantly simplifying the maintenance and replacement process and helping to reduce costs. This also allows for quick replacement of the spray portion 223 if performance degradation or damage occurs, thereby maintaining the efficient operation and reliability of the battery 2. This also increases the flexibility and practicality of the heat exchange component 20, allowing for replacement of spray portions 223 of different types or specifications based on varying application requirements or operating conditions.

[0127] In this way, the above technical solution can not only improve the maintenance efficiency and reliability of the heat exchange component 20, but also provide significant advantages in terms of cost control, flexibility and practicality.

[0128] FIG8 is a schematic structural diagram of a first bracket 13 of a battery 2 provided in some embodiments of the present application.

[0129] Continuing to refer to FIG. 8 , in some embodiments, the battery module 10 further includes a first bracket 13 . The first bracket 13 is connected to a side of the plurality of battery cells 11 that faces away from the heat exchange component 20 .

[0130] The primary function of the first bracket 13 is to provide structural support for the battery cells 11 to enhance the stability of the battery cells 11. The material selection for the first bracket 13 takes into account its mechanical strength, heat resistance, and corrosion resistance to meet the requirements of the battery 2 operating environment. For example, the first bracket 13 may be made of, but is not limited to, metal or non-metallic materials. For example, metal materials may include copper, copper alloys, aluminum, aluminum alloys, nickel, nickel alloys, titanium, titanium alloys, or stainless steel, while non-metallic materials may include ceramics, polyethylene, polypropylene, polyvinyl chloride, polyimide, or polyamide.

[0131] For example, the design of the first bracket 13 should take into account the requirements of easy assembly and disassembly to facilitate maintenance and repair of the battery module 10. In addition, the first bracket 13 may also be provided with mounting portions for securing the battery cells 11. These mounting portions may be fixedly connected to the battery cells 11 using, but are not limited to, bolts, clips, or other mechanical fasteners.

[0132] From a thermal management perspective, the design of the first bracket 13 also needs to take into account heat conduction paths and thermal expansion factors. In high-temperature operating environments, the thermal expansion coefficient of the first bracket 13 should match that of the battery cell 11 material to avoid structural stress or deformation due to temperature changes.

[0133] The above technical solution can effectively improve the structural stability and mechanical strength of the battery module 10 , make the performance of the battery cells 11 more stable, reduce the failure rate, and thus help improve the reliability of the entire battery 2 .

[0134] In some embodiments, the first bracket 13 includes a plurality of positioning grooves 131, which are recessed relative to a surface of the first bracket 13 on one side close to the battery cell 11. The plurality of positioning grooves 131 are arranged in a one-to-one correspondence with the plurality of battery cells 11, and at least a portion of the battery cell 11 is arranged in the positioning groove 131.

[0135] The primary functions of the positioning grooves 131 are to provide positioning during assembly of the battery cell 11 with the first bracket 13 to improve assembly efficiency, and to limit the position of the battery cell 11 to enhance its stability. The shape, structure, and dimensions of the positioning grooves 131 match the shape and dimensions of the battery cell 11, further enhancing positioning accuracy.

[0136] In some examples, the size design of the positioning groove 131 not only takes into account the physical size of the battery cell 11, but also includes space to accommodate possible slight size variations of the battery cell 11 to accommodate production tolerances and thermal expansion.

[0137] In some examples, the battery cell 11 is interference-fitted with the positioning groove 131 , which enables quick and reliable installation or replacement of the battery cell 11 , while also facilitating maintenance and inspection of the battery cell 11 .

[0138] The above technical solution can improve the assembly efficiency between the battery cell 11 and the first bracket 13 by setting the positioning groove 131. On the other hand, the positioning groove 131 can limit the battery cell 11 to improve the stability of the battery cell 11, effectively reducing the risk of damage to the battery cell 11 due to physical movement or collision.

[0139] In some embodiments, an exhaust hole 132 is defined in the positioning groove 131 , and the exhaust hole 132 passes through the first bracket 13 along the first direction X.

[0140] Exemplarily, the vents 132 extend through the first bracket 13 in the first direction X, forming an effective gas flow channel to facilitate gas discharge during the operation of the battery cell 11. In one example, during the charge and discharge process of the battery cell 11, a certain amount of heat is generated, causing the air pressure within the battery module 10 to increase. A portion of the gas within the battery module 10 can be discharged through the vents 132, thereby regulating the air pressure within the battery module 10. In another example, when a battery cell 11 experiences thermal runaway, a large amount of gas is generated. The vents 132 can promptly discharge this gas into the external environment, thereby reducing the risk of battery 2 explosion.

[0141] Optionally, the inner wall of the exhaust hole 132 may be smoothed to reduce resistance to gas flow and speed up gas discharge.

[0142] Optionally, a microporous filter or a dustproof net may be provided at the opening of the exhaust hole 132 to prevent foreign matter such as dust and particles from entering the interior of the battery 2 .

[0143] The above technical solution, by providing the exhaust hole 132 in the positioning groove 131, can not only adjust the pressure inside the battery 2 to maintain the pressure balance inside the battery 2, which helps to maintain the stable operation of the battery cell 11 and improve its life; it can also effectively release the internal pressure when the battery cell 11 has thermal runaway or other abnormal conditions, thereby preventing damage to the battery 2, thereby greatly improving the reliability of the battery 2.

[0144] FIG9 is a schematic diagram of an exploded structure of the cooperation between the second bracket 14 and the current collector of a battery 2 provided in some embodiments of the present application.

[0145] Continuing to refer to FIG. 9 , in some embodiments, the battery module 10 further includes a second bracket 14 . The second bracket 14 is connected to a side of the heat exchange component 20 facing away from the plurality of battery cells 11 .

[0146] The primary function of the second bracket 14 is to provide structural support for the battery cells 11 and the heat exchange component 20. The heat exchange component 20 is sandwiched between the second bracket 14 and the battery cells 11, providing a high degree of stability. The heat exchange component 20 can be detachably connected to the second bracket 14 or integrally mounted thereon. The heat exchange component 20 can be directly connected to the second bracket 14 or secured thereto by other components. For example, the connection between the heat exchange component 20 and the second bracket 14 may include, but is not limited to, bolting, welding, riveting, clamping, or bonding.

[0147] The material selection for the second bracket 14 takes into account its mechanical strength, heat resistance, and corrosion resistance to meet the requirements of the battery 2 operating environment. For example, the second bracket 14 can be made of, but is not limited to, metal or non-metallic materials. For example, metal materials can include copper, copper alloys, aluminum, aluminum alloys, nickel, nickel alloys, titanium, titanium alloys, or stainless steel, while non-metallic materials can include ceramics, polyethylene, polypropylene, polyvinyl chloride, polyimide, or polyamide.

[0148] For example, the design of the second bracket 14 should take into account the need for easy assembly and disassembly to facilitate maintenance and repair of the battery module 10. In addition, the first bracket 13 may also be provided with mounting portions for securing the battery cells 11 and the heat exchange component 20. These mounting portions may be fixedly connected to the battery cells 11 and the heat exchange component 20 using, but not limited to, bolts, snaps, or other mechanical fasteners.

[0149] From a thermal management perspective, the design of the second bracket 14 also needs to consider heat conduction paths and thermal expansion factors. In high-temperature operating environments, the thermal expansion coefficient of the second bracket 14 should match the materials of the battery cells 11 and heat exchange component 20 to avoid structural stress or deformation due to temperature changes.

[0150] The above technical solution can effectively improve the structural stability and mechanical strength between the heat exchange component 20 and the battery module 10, thereby helping to improve the reliability of the entire battery 2.

[0151] In some embodiments, at least a portion of the current collecting member 21 is embedded in the second bracket 14 .

[0152] For example, a portion of the current collecting member 21 may be embedded in the second bracket 14 , or the current collecting member 21 may be completely embedded in the second bracket 14 .

[0153] By at least partially embedding the current collecting member 21 into the second bracket 14 , this integrated design optimizes the space utilization of the battery module 10 , while also providing additional mechanical protection for the current collecting member 21 and reducing the risk of damage caused by external environmental factors.

[0154] In some embodiments, the second bracket 14 includes a plurality of positioning holes 141 , which penetrate the second bracket 14 along the first direction X. The plurality of positioning holes 141 are arranged in a one-to-one correspondence with the plurality of battery cells 11 , and at least a portion of the battery cells 11 are located in the positioning holes 141 .

[0155] The primary functions of the positioning holes 141 are to provide positioning during assembly of the battery cell 11 and the second bracket 14 to improve assembly efficiency, and to limit the position of the battery cell 11 to enhance its stability. The shape, structure, and dimensions of the positioning holes 141 match the shape and dimensions of the battery cell 11, further enhancing positioning accuracy.

[0156] In some examples, the size design of the positioning hole 141 not only takes into account the physical size of the battery cell 11 , but also includes space to accommodate possible slight size variations of the battery cell 11 to accommodate production tolerances and thermal expansion.

[0157] In some examples, the battery cell 11 is interference-fitted with the positioning hole 141 , which enables quick and reliable installation or replacement of the battery cell 11 , while also facilitating maintenance and inspection of the battery cell 11 .

[0158] The above technical solution can, on the one hand, improve the assembly efficiency between the battery cell 11 and the second bracket 14 by setting the positioning hole 141; on the other hand, the positioning hole 141 can limit the battery cell 11 to improve the stability of the battery cell 11, and effectively reduce the risk of damage to the battery cell 11 due to physical movement or collision.

[0159] In some embodiments, the flow collecting member 21 includes a pipeline portion 211 and a connecting portion 212 that are interconnected. The connecting portion 212 is disposed at one end of the pipeline portion 211 along the second direction Y, where the first direction X intersects the second direction Y. The connecting portion 212 has a greater rigidity than the pipeline portion 211. The connecting portion 212 is provided with an interface 213 for connecting to a component providing a heat exchange medium. A plurality of nozzles 22 are connected to the pipeline portion 211.

[0160] Exemplarily, the piping portion 211 is used to provide a smooth flow path for the heat exchange medium and distribute the heat exchange medium to a plurality of nozzles 22. The connecting portion 212 is used to provide a stable connection point to facilitate the connection between the collector 21 and the component that provides the heat exchange medium. The stiffness of the connecting portion 212 is greater than the stiffness of the piping portion 211, with the aim of improving the stability and durability of the connection between the collector 21 and the component that provides the heat exchange medium. In addition, the connecting portion 212 also affects the vibration resistance of the entire collector 21. During the operation of the battery 2, various vibrations and shocks may be encountered, so the connecting portion 212 with higher stiffness can reduce these external influences to improve the stability of the heat exchange medium transportation.

[0161] Optionally, to improve the rigidity of the connection portion 212 , a thickened wall design may be adopted or reinforcing fibers may be added to the material to effectively resist deformation caused by pressure fluctuations or mechanical stress, thereby ensuring the reliability and stability of the connection.

[0162] The conduit portion 211 can be detachably connected to the connection portion 212 or integrally provided on the connection portion 212. The conduit portion 211 can be directly connected to the connection portion 212 or secured to the connection portion 212 via other components. For example, the connection between the conduit portion 211 and the connection portion 212 can be, but is not limited to, bolting, welding, riveting, clamping, or bonding.

[0163] Optionally, the conduit portion 211 and the connecting portion 212 are integrally formed. This eliminates the need for an additional joining process to connect the conduit portion 211 and the connecting portion 212, simplifying the manufacturing process. Furthermore, compared to connecting the conduit portion 211 and the connecting portion 212 through an additional joining process, the integral conduit portion 211 and the connecting portion 212 have a stronger connection.

[0164] Optionally, the interface 213 on the connecting portion 212 may be, but is not limited to, a threaded connection port 213 , a quick connector, or a sealed fitting interface 213 .

[0165] The current collecting member 21 in the above technical solution can provide stable heat exchange medium transportation while also improving the connection firmness between the current collecting member 21 and the component providing the heat exchange medium, thereby improving the overall reliability of the battery 2.

[0166] In some embodiments, the connecting portion 212 protrudes from a side of the pipe portion 211 close to the plurality of battery cells 11 .

[0167] For example, the protrusion of the connection portion 212 relative to the conduit portion 211 provides some protection for the conduit portion 211, reducing the risk of damage to the conduit portion 211 from the external environment. The protruding arrangement of the connection portion 212 along a side adjacent to the battery cells 11 reduces the internal space occupied by the connection portion 212 within the battery 2, thereby improving the structural compactness between the heat exchange component 20 and the battery module 10.

[0168] In addition, the battery cell 11 may produce a certain displacement or expansion during the cycle process. The connecting portion 212 protrudes from the side of the pipe portion 211 close to the multiple battery cells 11, which can enable the connecting portion 212 to have a certain limiting effect on the battery cell 11, thereby limiting the displacement or expansion of the battery cell 11 during the cycle process to a certain extent, thereby improving the structural stability of the battery cell 11.

[0169] In this way, the above technical solution can not only protect the pipe portion 211 , but also reduce the space occupied by the connecting portion 212 in the internal space of the battery 2 , which is beneficial to improving the energy density of the battery 2 and improving the structural stability of the battery cell 11 .

[0170] In some embodiments, the connection portion 212 extends along the third direction Z, and the first direction X, the second direction Y, and the third direction Z are perpendicular to each other. This can further increase the coverage area of ​​the connection portion 212, thereby improving the structural strength of the connection portion 212, the protection effect on the conduit portion 211, and the limiting effect on the battery cell 11.

[0171] FIG10 is a schematic diagram of an explosion structure of another battery 2 provided in some embodiments of the present application.

[0172] Continuing to refer to FIG. 10 , in some embodiments, there are multiple battery modules 10 and multiple heat exchange components 20 , and the multiple heat exchange components 20 are disposed in a one-to-one correspondence with the multiple battery modules 10 .

[0173] For example, the number of battery modules 10 may be two, three, four, or more, and the number of heat exchange components 20 may be two, three, four, or more, with the number of heat exchange components 20 matching the number of battery modules 10. As an example, there are two battery modules 10 and two heat exchange components 20, with one heat exchange component 20 corresponding to one battery module 10.

[0174] Each of the multiple battery modules 10 in the above technical solution is equipped with a dedicated heat exchange component 20, so that each battery module 10 can obtain more effective heat exchange, thereby further improving the heat exchange efficiency of the battery 2.

[0175] In some embodiments, the battery 2 further includes a detection component 30 , which is connected to each battery module 10 and is used to detect the temperature of each battery module 10 .

[0176] For example, the detection component 30 can monitor the temperature of each battery module 10 in real time and obtain the temperature of each battery module 10 in a timely manner. This allows for targeted heat exchange based on the temperature of each battery module 10. The detection component 30 can include, but is not limited to, a temperature sensor such as a thermocouple or thermistor.

[0177] Optionally, the detection component 30 is connected to the battery module 10. The detection component 30 may be directly connected to the battery module 10 or may be secured to the battery module 10 via other components. For example, the connection between the detection component 30 and the battery module 10 may be, but is not limited to, bolting, welding, riveting, clamping, or bonding.

[0178] The provision of the detection component 30 can, on the one hand, improve the accuracy of the thermal management of the battery 2 and enable targeted heat exchange based on the temperature of each battery module 10, thereby further improving the utilization rate of the heat exchange medium and further reducing the waste of the heat exchange medium, thereby further improving the heat exchange efficiency of the battery 2. Furthermore, the temperature data obtained by the detection component 30 can also provide data information to the battery 2 management system for optimizing the performance of the battery 2 and extending its service life.

[0179] In some embodiments, the battery 2 also includes a control component 40, which is connected to the detection component 30 and the heat exchange component 20 of each battery module 10. The control component 40 is configured to turn on the heat exchange component 20 corresponding to the battery module 10 when the temperature value of the battery module 10 obtained by the detection component 30 reaches a first threshold.

[0180] For example, when the detection component 30 detects that the temperature value of a battery module 10 reaches a first threshold value, the detection component 30 sends a signal to the control component 40, and the control component 40 then turns on the heat exchange component 20 corresponding to the battery module 10 whose temperature value reaches the first threshold value. The nozzle 22 of the heat exchange component 20 sprays heat exchange medium, thereby exchanging heat for the battery cell 11.

[0181] Optionally, the interaction between the control component 40 and the heat exchange component 20 is achieved through an electronic control system, which includes but is not limited to a microcontroller, a sensor interface 213, and a power control circuit.

[0182] The above technical solution provides a control component 40 , and the automated response mechanism enables the heat exchange component 20 to respond immediately to the temperature fluctuation of the battery module 10 , thereby optimizing energy efficiency and enhancing the reliability of the battery 2 .

[0183] In some embodiments, the battery 2 also includes a box body 50, and the battery module 10 and the heat exchange component 20 are accommodated in the box body 50. The box body 50 is provided with an inlet 51 and an outlet 52. The inlet 51 is connected to the current collecting member 21, and the outlet 52 connects the interior of the box body 50 with the outside.

[0184] For example, the housing 50 not only serves as a physical container for the battery module 10 and the heat exchange component 20, but also provides structural support for the battery module 10 and the heat exchange component 20. When the heat exchange component 20 needs to exchange heat with the battery cell 11, the heat exchange medium enters the manifold 21 through the inlet 51 and is distributed to the multiple nozzles 22. The nozzles 22 spray the heat exchange medium. After the heat exchange medium completes the heat exchange with the battery cell 11, the heat exchange medium accumulates inside the housing 50 and is finally discharged to the outside of the battery 2 through the outlet 52.

[0185] The material of the housing 50 is selected based on its mechanical strength, heat resistance, and corrosion resistance to meet the requirements of the operating environment of the battery 2. As an example, the housing 50 can be made of, but is not limited to, metal or non-metallic materials. For example, metal materials can include copper, copper alloys, aluminum, aluminum alloys, nickel, nickel alloys, titanium, titanium alloys, or stainless steel, while non-metallic materials can include ceramics, polyethylene, polypropylene, polyvinyl chloride, polyimide, or polyamide.

[0186] Optionally, at least one of the inlet 51 and the outlet 52 is provided with a seal. The seal may be, but is not limited to, an annular ring, a gasket, or a specially shaped seal. Such a seal can adapt to the shape of the pipe connection and maintain a stable sealing effect under thermal expansion and mechanical vibration. The seal may be made of a high-temperature and chemical-resistant sealing material, such as silicone rubber, polytetrafluoroethylene, or other special synthetic materials.

[0187] By introducing the box 50, the above technical solution can, on the one hand, effectively integrate and protect the battery module 10 and the heat exchange component 20, so as to improve the overall reliability and durability of the battery 2; on the other hand, the box 50 can also block and collect the heat exchange medium sprayed from the nozzle 22, thereby reducing the impact of the heat exchange medium on related devices outside the battery 2 and the pollution caused to the external environment.

[0188] In some embodiments, the box body 50 includes a bottom plate 54 and a side plate 53 connected to each other, and the heat exchange component 20 is disposed on a side of the plurality of battery cells 11 facing away from the bottom plate 54 .

[0189] For example, the heat exchange component 20 is located on the side of the multiple battery cells 11 facing away from the bottom plate 54. After the nozzle 22 of the heat exchange component 20 sprays the heat exchange medium to exchange heat with the battery cells 11, the heat exchange medium can gather on the bottom plate 54. The heat exchange medium gathered on the bottom plate 54 and not yet discharged through the outlet 52 can exchange heat at the bottom of the battery cell 11, thereby further improving the utilization efficiency of the heat exchange medium.

[0190] The side panels 53 can be detachably connected to the bottom panel 54 or integrally formed on the bottom panel 54. The side panels 53 can be directly connected to the bottom panel 54 or secured to the bottom panel 54 via other components. For example, the connection between the side panels 53 and the bottom panel 54 can be, but is not limited to, bolting, welding, riveting, clamping, or bonding.

[0191] Optionally, the side panels 53 and bottom panel 54 are integrally formed. This simplifies the manufacturing process by eliminating the need for an additional joining process. Furthermore, the integral structure provides a stronger connection between the side panels 53 and bottom panel 54 than would be achieved by an additional joining process.

[0192] In this way, the above technical solution can further improve the utilization efficiency of the heat exchange medium by arranging the heat exchange component 20 on the side of the plurality of battery cells 11 facing away from the bottom plate 54, thereby further improving the heat exchange efficiency of the battery 2.

[0193] In some embodiments, the inlet 51 and the outlet 52 are provided on the side plate 53 .

[0194] For example, the inlet 51 is provided on the side plate 53, which can reduce the path length of the communication pipe between the inlet 51 and the current collector 21, thereby reducing the internal space occupied by the communication pipe between the inlet 51 and the current collector 21, and thus improving the energy density of the battery 2. The outlet 52 is provided on the side plate 53, which can ensure that the heat exchange medium will not begin to be discharged from the outlet 52 until it has completely covered the bottom plate 54. This further enhances the heat exchange effect of the heat exchange medium accumulated on the bottom plate 54 and not yet discharged through the outlet 52 on the bottom of the battery cell 11, thereby further improving the utilization efficiency of the heat exchange medium.

[0195] In this way, the above technical solution is beneficial to improving the energy density of the battery 2 on the one hand, and can further improve the utilization efficiency of the heat exchange medium on the other hand.

[0196] In some embodiments, the outlet 52 is disposed close to the bottom plate 54 in the first direction X to further improve the efficiency of discharging the heat exchange medium from the outlet 52 to the outside of the battery 2 .

[0197] In some embodiments, the housing 50 further includes a partition 55 connected to at least one of the bottom plate 54 and the side plate 53, forming a plurality of accommodating cavities within the housing 50. Multiple battery modules 10 are disposed in the accommodating cavities. A through slot 551 is defined on one side of the partition 55 near the bottom plate 54. The through slot 551 extends through the partition 55 along its thickness, interconnecting the multiple accommodating cavities via the through slot 551.

[0198] Illustratively, the partition 55 is used to divide the interior of the battery housing 50 into multiple accommodating cavities, each of which is used to store a battery module 10. The partition 55 can isolate two adjacent battery modules 10 to reduce interference and thermal impact between the two adjacent battery modules 10. The partition 55 can be connected to the bottom plate 54, the side plate 53, or both the bottom plate 54 and the side plate 53.

[0199] As an example, when the partition 55 is connected to the bottom plate 54, the partition 55 can be detachably connected to the bottom plate 54 or integrally provided on the bottom plate 54. The partition 55 can be directly connected to the bottom plate 54 or secured to the bottom plate 54 by other components. As an example, the connection between the partition 55 and the bottom plate 54 can be, but is not limited to, bolting, welding, riveting, clamping, or bonding.

[0200] Optionally, the partition 55 and the bottom plate 54 are integrally formed. This eliminates the need for an additional joining process, simplifying the manufacturing process. Furthermore, compared to joining the partition 55 and the bottom plate 54 using an additional joining process, the integral structure provides a stronger connection between the partition 55 and the bottom plate 54.

[0201] The material of the separator 55 is selected based on its mechanical strength, heat resistance, and corrosion resistance to meet the requirements of the operating environment of the battery 2. As an example, the housing 50 can be made of, but is not limited to, metal or non-metallic materials. For example, metal materials can include copper, copper alloys, aluminum, aluminum alloys, nickel, nickel alloys, titanium, titanium alloys, or stainless steel, while non-metallic materials can include ceramics, polyethylene, polypropylene, polyvinyl chloride, polyimide, or polyamide.

[0202] After the nozzle 22 of the heat exchange component 20 sprays the heat exchange medium to exchange heat with the battery cell 11, the heat exchange medium can flow between two adjacent accommodating cavities through the through groove 551, so that only one outlet 52 needs to be set on the box body 50 to discharge the heat exchange medium located in multiple accommodating cavities, which can reduce the overall structural complexity of the battery 2 and help reduce costs.

[0203] Optionally, there are multiple through slots 551 , and the multiple through slots 551 are distributed at intervals along the extension direction of the partition 55 .

[0204] The above technical solution, by providing a partition 55, can reduce interference and thermal impact between two adjacent battery modules 10. By providing a through slot 551 in the partition 55, heat exchange medium can flow between two adjacent cavities through the through slot 551, thereby reducing the overall structural complexity of the battery 2 and helping to reduce costs. Furthermore, the through slot 551 allows air and heat within the housing 50 to flow and exchange between the multiple cavities, helping to balance and distribute the heat generated by the multiple battery modules 10, avoiding the generation of local hot spots, and thus improving the reliability of the battery 2.

[0205] FIG11 is a schematic diagram of the three-dimensional structure of another battery 2 provided in some embodiments of the present application.

[0206] Continuing to refer to Figure 11, in some embodiments, the battery 2 also includes a circulation component 60, the circulation component 60 includes a first power component 61 and a storage component 62, the first power component 61 is connected between the inlet 51 and the storage component 62, and the storage component 62 is connected to the outlet 52.

[0207] For example, the storage component 62 is used to store heat exchange medium, and the primary function of the first power component 61 is to propel the heat exchange medium in the storage component 62 to the collector 21. After the nozzle 22 of the heat exchange component 20 sprays the heat exchange medium to exchange heat with the battery cells 11, the heat exchange medium then enters the storage component 62 through the outlet 52, completing a cycle.

[0208] Optionally, the storage component 62 may include a pressure regulating system, a temperature controller, and a safety valve to enable the stored heat exchange medium to be used under reliable conditions.

[0209] Optionally, the first power component 61 may be, but is not limited to, a centrifugal liquid pump, a diaphragm liquid pump, a plunger liquid pump, or a gear liquid pump.

[0210] The above technical solution can circulate the heat exchange medium by providing the circulation component 60, thereby further improving the utilization efficiency of the heat exchange medium and reducing costs.

[0211] In some embodiments, the circulation assembly 60 further includes a second power component 63 , which is connected between the outlet 52 and the storage component 62 .

[0212] For example, after the nozzle 22 of the heat exchange component 20 sprays the heat exchange medium to exchange heat with the battery cell 11, the second power component 63 can transfer the heat exchange medium accumulated inside the box 50 to the storage component 62, which can further improve the discharge efficiency of the heat exchange medium.

[0213] Optionally, the second power component 63 may be, but is not limited to, a mechanical air pump, a turbine air pump, a diffusion air pump, or an ion air pump.

[0214] The above technical solution can improve the transmission efficiency of the heat exchange medium gathered inside the box 50 to the storage component 62 by setting the second power component 63, so that the performance of the circulation component 60 is further improved, and the circulation of the heat exchange medium of the battery 2 can be more effectively managed.

[0215] In some embodiments, the battery cell 11 is a cylindrical battery cell.

[0216] According to some embodiments of the present application, the present application further provides an electrical device, comprising a battery 2 according to any of the above solutions, and the battery 2 is used to provide electrical energy.

[0217] In order to better understand the battery 2 provided in the embodiment of the present application, based on the same inventive concept, an embodiment of the above-mentioned battery 2 in actual application is provided here for illustration.

[0218] An embodiment of the present application provides a battery 2, which includes a case 50, multiple battery modules 10, multiple heat exchange components 20, a detection component 30 and a control component 40, and the multiple heat exchange components 20 are arranged in a one-to-one correspondence with the multiple battery modules 10.

[0219] The box body 50 is provided with an inlet 51 and an outlet 52. The outlet 52 connects the interior of the box body 50 with the exterior. The box body 50 includes a bottom plate 54, side plates 53, and a partition plate 55, which are connected to each other. The inlet 51 and the outlet 52 are provided on the side plates 53. The outlet 52 is provided near the bottom plate 54 in the first direction X. The partition plate 55 forms a plurality of accommodating cavities within the box body 50. A through slot 551 is provided on one side of the partition plate 55 near the bottom plate 54. The through slot 551 penetrates the partition plate 55 along its thickness, and the plurality of accommodating cavities are interconnected through the through slot 551.

[0220] A plurality of battery modules 10 are respectively disposed in the plurality of accommodating cavities. The battery module 10 includes a first bracket 13 , a second bracket 14 , and a plurality of cylindrical battery cells. Gaps 12 are formed between adjacent cylindrical battery cells.

[0221] The first bracket 13 is connected to the side of the multiple cylindrical battery cells that faces away from the heat exchange component 20. The first bracket 13 includes multiple positioning grooves 131. The positioning grooves 131 are recessed relative to the surface of the first bracket 13 on the side closest to the cylindrical battery cells. The multiple positioning grooves 131 are arranged one-to-one with the multiple cylindrical battery cells, and at least part of the cylindrical battery cells are disposed within the positioning grooves 131. The positioning grooves 131 are provided with exhaust holes 132, which extend through the first bracket 13 along the first direction X.

[0222] The second bracket 14 is connected to the side of the heat exchange component 20 facing away from the cylindrical battery cells. The second bracket 14 includes a plurality of positioning holes 141 that extend through the second bracket 14 along the first direction X. The positioning holes 141 are arranged in a one-to-one correspondence with the cylindrical battery cells, and at least a portion of the battery cells 11 are positioned within the positioning holes 141.

[0223] The heat exchange component 20 is disposed on the side of the battery cells 11 facing away from the base plate 54. The heat exchange component 20 includes a current collector 21 and multiple nozzles 22. The current collector 21 is located on one side of the battery cells 11 along the first direction X. A flow channel for the heat exchange medium is defined within the current collector 21. The inlet 51 is connected to the current collector 21. Multiple nozzles 22 are connected to the current collector 21 and face the battery cells 11. The nozzles 22 are provided with multiple spray holes 221. In the first direction X, the projections of the nozzles 22 at least partially overlap with the projections of the slits 12.

[0224] The detection component 30 is connected to each battery module 10 and is used to detect the temperature of each battery module 10 .

[0225] The control component 40 is connected to the detection component 30 and the heat exchange component 20 of each battery module 10. The control component 40 is configured to turn on the heat exchange component 20 corresponding to the battery module 10 when the temperature value of the battery module 10 obtained by the detection component 30 reaches a first threshold.

[0226] The nozzle 22 of the above-described technical solution can directly spray the heat exchange medium toward the gap 12 formed between adjacent battery cells 11, so that the heat exchange medium can more accurately enter the gap 12 and exchange heat in the hot spots of multiple battery cells 11 surrounding the gap 12. This allows the heat exchange medium to be fully utilized, improves the utilization rate of the heat exchange medium, reduces the waste of the heat exchange medium, and thus effectively improves the heat exchange efficiency of the battery 2. In addition, by providing the detection component 30, the accuracy of the thermal management of the battery 2 can be improved, and heat exchange can be targeted according to the temperature status of each battery module 10, which is conducive to further improving the utilization rate of the heat exchange medium and further reducing the waste of the heat exchange medium, thereby further improving the heat exchange efficiency of the battery 2.

[0227] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0228] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery comprising: A battery module comprising a plurality of battery cells, wherein gaps are formed between adjacent battery cells; a heat exchange component, comprising a current collecting member and a plurality of nozzles, wherein the current collecting member is located on one side of the plurality of battery cells along the first direction and has a flow channel for a heat exchange medium therein, and the plurality of nozzles are connected to the current collecting member and face the battery cells; In the first direction, a projection of the nozzle at least partially overlaps a projection of the slit.

2. The battery according to claim 1, wherein At least a portion of the nozzle is received within the gap.

3. The battery according to any one of claims 1 or 2, wherein The nozzle is provided with a plurality of spray holes.

4. The battery according to any one of claims 1 to 3, wherein: The nozzle includes a main body and a spraying part. The main body is connected to the current collecting member. The spraying part is connected to one end of the main body away from the current collecting member. The spraying part is provided with a spraying hole.

5. The battery according to claim 4, wherein In a direction approaching the battery cell, a size of the shower portion gradually decreases in a direction perpendicular to the first direction.

6. The battery according to claim 4, wherein The main body and the spray part are detachably connected.

7. The battery according to any one of claims 1 to 6, wherein: The battery module further includes a first bracket connected to a side of the plurality of battery cells facing away from the heat exchange component.

8. The battery according to claim 7, wherein The first bracket includes a plurality of positioning grooves, which are recessed relative to a surface of the first bracket close to the battery cells. The plurality of positioning grooves are arranged in one-to-one correspondence with the plurality of battery cells, and at least a portion of the battery cells is arranged in the positioning grooves.

9. The battery according to claim 8, wherein An exhaust hole is provided in the positioning groove, and the exhaust hole passes through the first bracket along the first direction.

10. The battery according to any one of claims 1 to 9, wherein The battery module further includes a second bracket connected to a side of the heat exchange component facing away from the plurality of battery cells.

11. The battery according to claim 10, wherein At least a portion of the current collecting member is embedded in the second bracket.

12. The battery according to claim 10, wherein The second bracket includes a plurality of positioning holes, which penetrate the second bracket along the first direction. The plurality of positioning holes are arranged in a one-to-one correspondence with the plurality of battery cells, and at least a portion of the battery cells is located in the positioning holes.

13. The battery according to any one of claims 1 to 12, wherein: The current collecting member includes a pipeline portion and a connecting portion that are connected to each other, wherein the connecting portion is provided at one end of the pipeline portion along a second direction, and the first direction intersects with the second direction; The rigidity of the connecting portion is greater than that of the pipeline portion. The connecting portion is provided with an interface for connecting to a component providing the heat exchange medium. The plurality of nozzles are connected to the pipeline portion.

14. The battery according to claim 13, wherein The connecting portion protrudes from a side of the pipe portion close to the plurality of battery cells.

15. The battery according to claim 13, wherein The connecting portion extends along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

16. The battery according to any one of claims 1 to 15, wherein: There are multiple battery modules and multiple heat exchange components, and the multiple heat exchange components are arranged in a one-to-one correspondence with the multiple battery modules.

17. The battery according to claim 16, wherein The battery further includes a detection component connected to each of the battery modules and configured to detect a temperature of each of the battery modules.

18. The battery according to claim 17, wherein The battery also includes a control component, which is connected to the detection component and the heat exchange component of each battery module. The control component is configured to turn on the heat exchange component corresponding to the battery module when the temperature value of the battery module obtained by the detection component reaches a first threshold.

19. The battery according to any one of claims 1 to 18, wherein The battery further includes a box body, in which the battery module and the heat exchange component are accommodated. An inlet and an outlet are provided on the box body. The inlet is connected to the current collecting member, and the outlet connects the interior of the box body with the exterior.

20. The battery according to claim 19, wherein The box body includes a bottom plate and side plates connected to each other, and the heat exchange component is arranged on a side of the plurality of battery cells facing away from the bottom plate.

21. The battery according to claim 20, wherein The inlet and the outlet are provided on the side plate.

22. The battery according to claim 21, wherein The outlet is disposed close to the bottom plate in the first direction.

23. The battery according to claim 20, wherein The box body further includes a partition plate connected to at least one of the bottom plate and the side plate, and forming a plurality of accommodating cavities inside the box body, wherein the number of the battery modules is multiple, and the plurality of battery modules are respectively arranged in the plurality of accommodating cavities; A through groove is provided on one side of the partition close to the bottom plate. The through groove passes through the partition along the thickness direction of the partition. The multiple accommodating cavities are interconnected through the through groove.

24. The battery according to claim 19, wherein The battery further includes a circulation assembly, which includes a first power component and a storage component. The first power component is connected between the inlet and the storage component, and the storage component is connected to the outlet.

25. The battery according to claim 24, wherein The circulation assembly further includes a second power component connected between the outlet and the storage component.

26. The battery according to any one of claims 1 to 25, wherein The battery cell is a cylindrical battery cell.

27. An electrical device comprising the battery according to any one of claims 1 to 26, wherein the battery is used to provide electrical energy.

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