Battery and electric device

Abstract

Embodiments of the present application provide a battery and an electric device. The battery comprises a plurality of battery cells, a plurality of thermal management components, first connecting tubes, and first thermal insulation members, the plurality of thermal management components are arranged at intervals in a first direction, each thermal management component has a first end and a second end in a second direction, at least one battery cell is arranged between two adjacent thermal management components, and the first direction is perpendicular to the second direction. Each first connecting tube is located at one side of the corresponding battery cell in the second direction, and connected to first ends of two adjacent thermal management components. In the second direction, at least a part of each first thermal insulation member is located between the first connecting tube and the corresponding battery cell. Thus, when a battery cell among the battery cells expands due to thermal runaway, in the second direction, the first thermal insulation member can abut against the battery cell prior to the first connecting tube, thereby reducing heat transferred by the battery cell undergoing thermal runaway to the first connecting tube.

Description

Batteries and electrical equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202420156495.6, filed on January 22, 2024, entitled “Batteries and Electrical Equipment,” 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] 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.

[0005] In the development of battery technology, in addition to improving battery performance, the reliability of batteries during use is also an issue that needs to be considered.

[0006] Therefore, how to improve battery reliability is an urgent problem to be solved in battery technology.

[0007] Summary of the Invention

[0008] The embodiments of the present application provide a battery and an electrical device, which can improve the reliability of the battery during use.

[0009] In a first aspect, an embodiment of the present application provides a battery comprising a plurality of battery cells, a plurality of thermal management components, a first connecting tube, and a first thermal insulation member, wherein the plurality of thermal management components are spaced apart along a first direction, and each thermal management component has a first end and a second end in a second direction. At least one battery cell is disposed between two adjacent thermal management components, and the first and second directions are perpendicular. The first connecting tube is located on one side of the battery cell in the second direction, and the first connecting tube connects the first ends of the two adjacent thermal management components. Along the second direction, at least a portion of the first thermal insulation member is located between the first connecting tube and the battery cell.

[0010] In the technical solution of the embodiment of the present application, a first thermal insulator is disposed between the battery cell and the first connecting tube along the second direction. This design allows the first thermal insulator to abut the battery cell before the first connecting tube along the second direction when a battery cell expands due to thermal runaway. This reduces the amount of heat transferred from the thermally runaway battery cell to the first connecting tube, thereby reducing the probability of the battery cell housing melting the first connecting tube. This further reduces the probability of fluid leakage from the first connecting tube due to contact with the battery cell housing, and improves the reliability of the battery during use.

[0011] In some embodiments, the battery further includes a housing, which houses the battery cells and thermal management components. The first thermal insulation member is connected to the battery cells and / or the housing. The housing provides mounting space for the battery cells and thermal management components, improving the battery's integration. The housing also provides mounting space for the first thermal insulation member, facilitating its installation.

[0012] In some embodiments, a first gap exists between the first thermal insulation member and the first connecting tube along the second direction. This design ensures that, in the event of thermal runaway of a battery cell, the first thermal insulation member will only come into contact with the first connecting tube when the expansion deformation exceeds the first gap. This is beneficial for reducing the amount of heat transferred from the thermally runaway battery cell to the first connecting tube.

[0013] In some embodiments, the first thermal insulation member includes a first thermal insulation board and a second thermal insulation board. The second thermal insulation board includes a first part and a second part, and along the second direction, the first thermal insulation board is arranged between the first part and the battery cell. The first thermal insulation board is connected to the battery cell, and the first part is connected to the first thermal insulation board. Along the second direction, there is a second gap between the second part and the battery cell, and the projection of the first connecting tube is located within the second part. Such a design ensures that when the second part of the second thermal insulation board abuts against the first connecting tube due to the expansion of the battery cell, there is still a gap between the second part and the battery cell, so that the battery cell will only contact the battery through the second part when the battery cell further expands. This is beneficial to slowing down the heat transferred from the battery cell that has undergone thermal runaway to the first connecting tube.

[0014] In some embodiments, the end of the first thermal insulator facing away from the battery cell extends beyond the first connecting tube along the second direction. This design allows the housing to vibrate under external force, causing the first thermal insulator to contact the housing earlier than the battery cell when the battery cell moves relative to the housing in the second direction, thereby providing a cushioning effect on the battery cell. This is beneficial for reducing damage to the battery caused by external impact.

[0015] In some embodiments, the first thermal insulation member includes a first side plate and a first bottom plate. Along the second direction, the first side plate is disposed between the first connecting tube and the battery cell. Along the second direction, one end of the first bottom plate is connected to the first side plate, and the other end extends beyond the first connecting tube. This design allows the first bottom plate to abut against the box earlier than the battery cell when the battery cell moves relative to the box in the second direction, thereby providing a buffer for the battery cell. At the same time, the reaction force exerted on the first bottom plate is absorbed by the first side plate or distributed to the battery cell, which is beneficial for reducing the degree of damage to the battery caused by external force collisions.

[0016] In some embodiments, the housing includes a bottom wall and a top wall arranged opposite each other along a third direction, the bottom wall being used to support the battery cells, and the first bottom plate being connected to the bottom wall. The first direction, the second direction, and the third direction are perpendicular to each other. The design of the bottom wall provides a mounting position for mounting the battery cells and / or components for securing the battery cells. The first bottom plate is connected to the bottom wall so that the bottom wall can provide support for the first thermal insulation member, which is beneficial for improving the stability of the first thermal insulation member during operation.

[0017] In some embodiments, the first thermal insulation member further includes a first top plate. Along the third direction, the first connecting tube is located between the first top plate and the first bottom plate. Along the second direction, one end of the first top plate is connected to the first side plate, and the other end extends beyond the first connecting tube. This design ensures that when the battery cell moves relative to the case in the second direction, the first top plate will abut against the case earlier than the battery cell, thereby providing a buffer for the battery cell. At the same time, the reaction force applied to the first top plate is absorbed by the first side plate or distributed to the battery cell, which is beneficial for reducing the degree of damage to the battery caused by external force collisions.

[0018] In some embodiments, the first top plate has a third end facing away from the first side plate, and the first bottom plate has a fourth end facing away from the first side plate, with the third end and the fourth end being flush. This design allows the first top plate and the first bottom plate to simultaneously abut against the inner wall of the case facing the first connecting tube when the battery cells move in the second direction relative to the case, thereby providing a cushioning effect for the battery cells. This also makes the reaction force on the first side plate more uniform, which is beneficial for improving the stability of the first thermal insulation member during operation.

[0019] In some embodiments, the first thermal insulation member is made of mica paper, ceramic composite tape, or hard rubber. These materials have low thermal conductivity, thereby reducing heat transfer within the thermal insulation member. This is beneficial in reducing the probability of fluid leakage from the first connecting pipe due to contact with the battery cell housing.

[0020] In some embodiments, the battery further includes a second connecting tube and a second thermal insulation member. The second connecting tube is located on the side of the battery cell facing away from the first connecting tube in the second direction. The second connecting tube connects the second ends of two adjacent thermal management components. Along the second direction, at least a portion of the second thermal insulation member is located between the second connecting tube and the battery cell. Such a design allows the second thermal insulation member to abut against the battery cell before the second connecting tube along the second direction when the battery cell in the battery cell expands due to thermal runaway, and allows the battery cell to abut against the second connecting tube through the second thermal insulation member, thereby reducing the heat transferred from the battery cell that has thermal runaway to the second connecting tube, thereby reducing the probability of the battery cell shell melting the second connecting tube, thereby reducing the probability of fluid leakage from the second connecting tube due to contact with the battery cell shell, thereby improving the reliability of the battery during use.

[0021] In a second aspect, an embodiment of the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

[0022] 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

[0023] 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 of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0024] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0025] FIG2 is a schematic diagram of the exploded structure of a first battery according to some embodiments of the present application;

[0026] FIG3 is a schematic structural diagram of a first battery in some embodiments of the present application;

[0027] FIG4 is a schematic structural diagram of a first thermal insulation member in some embodiments of the present application;

[0028] FIG5 is a schematic diagram of the exploded structure of a second battery according to some embodiments of the present application;

[0029] FIG6 is a schematic cross-sectional view of a second type of battery along a first direction X according to some embodiments of the present application;

[0030] FIG7 is a schematic cross-sectional view of a third type of battery along a first direction X according to some embodiments of the present application;

[0031] FIG8 is a schematic structural diagram of another first thermal insulation member according to some embodiments of the present application;

[0032] FIG9 is a schematic cross-sectional view of a fourth type of battery along a first direction X according to some embodiments of the present application;

[0033] FIG10 is a schematic structural diagram of another first thermal insulation member according to some embodiments of the present application;

[0034] FIG11 is a schematic diagram of the exploded structure of a third battery according to some embodiments of the present application;

[0035] FIG12 is a schematic diagram of the exploded structure of a fourth battery according to some embodiments of the present application;

[0036] In the drawings, the drawings are not drawn to scale.

[0037] Marking instructions: 1000-vehicle; 100-battery; 200-controller; 300-motor; 10-housing; 11-first housing; 111-top wall; 12-second housing; 121-bottom wall; 20-battery cell; 30-thermal management component; 31-first end; 32-second end; 40-first connecting pipe; 41-second connecting pipe; 50-first thermal insulation member; 501-first gap; 502-second gap; 51-clamping portion; 52-first thermal insulation board; 53-second thermal insulation board; 531-first part; 532-second part; 54-first side panel; 55-first bottom panel; 551-fourth end; 56-first top panel; 561-third end; 57-second thermal insulation member. DETAILED DESCRIPTION

[0038] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are 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 figure descriptions are intended to cover non-exclusive inclusions.

[0040] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0041] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces), unless otherwise clearly and specifically defined.

[0043] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0044] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0045] 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).

[0046] In the embodiments of the present application, battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of the present application do not limit this. Battery cells may be cylindrical, flat, rectangular, or other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types based on the packaging method: cylindrical battery cells, prismatic battery cells, and soft-pack battery cells, and the embodiments of the present application do not limit this.

[0047] A battery cell consists of an electrode assembly and an electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet, and a separator. A battery cell primarily operates by the movement of metal ions between the positive and negative electrode sheets.

[0048] Batteries have outstanding advantages such as high energy density, low environmental pollution, high power density, long service life, wide adaptability, and low self-discharge coefficient. They are an important component of today's new energy development. With the development of the new energy industry, batteries are gradually moving towards large-scale and integrated development.

[0049] However, when stacking a large number of battery cells together, controlling the internal temperature of the battery is crucial. Uneven temperature distribution can lead to a widening difference between battery cells, accelerating battery failure, directly affecting the battery's service life and reliability. For example, pouch cells, when stacked together in large numbers, offer weak support and protection. Thermal runaway in individual cells can easily cause widespread heat diffusion, impacting the battery's service life and reliability.

[0050] In order to improve the reliability and stability of the battery in the battery assembly scheme, a thermal management component is usually installed in the box. The thermal management component is used to contain fluid to regulate the temperature of multiple battery cells. In some cases, in order to increase the contact area between the thermal management component and the battery cell, the thermal management component is set on the large side of the battery cell. At the same time, in order to enable the fluid in multiple thermal management components to circulate between multiple thermal management components. In some cases, a first connecting tube is set on the non-large side of the battery to connect multiple thermal management components. However, when a battery cell experiences thermal runaway, the internal temperature of the battery cell increases and the internal pressure also increases. This causes the shell temperature of the battery cell to rise and expand. When the battery cell shell expands, it may come into contact with the first connecting tube, thereby melting through the first connecting tube and causing safety problems.

[0051] In view of this, embodiments of the present application provide a battery and an electrical device, the battery comprising a plurality of battery cells, a plurality of thermal management components, a first connecting tube, and a first thermal insulator. The plurality of thermal management components are spaced apart. At least one battery cell is disposed between two adjacent thermal management components. The first connecting tube is configured to connect the first ends of two adjacent thermal management components. At least a portion of the first thermal insulator is positioned between the first connecting tube and the battery cells.

[0052] In this way, when a battery cell in the battery unit expands due to thermal runaway, the first thermal insulation member can abut against the battery cell before the first connecting tube, and the battery cell can abut against the first connecting tube through the first thermal insulation member, thereby reducing the heat transferred from the battery cell that has thermal runaway to the first connecting tube, thereby reducing the probability of the battery cell shell melting the first connecting tube, and further reducing the probability of fluid leakage from the first connecting tube due to contact with the battery cell shell, thereby improving the reliability of the battery during use.

[0053] The embodiments of the present application provide an electric device that uses a battery as a power source. The electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric car, a ship, 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.

[0054] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0055] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided 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. A battery 100 is provided inside the vehicle 1000, and the battery 100 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 serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0056] 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.

[0057] According to some embodiments of the present application, referring to FIG. 2 and further to FIG. 3 and FIG. 4 , FIG. 2 is an exploded schematic diagram of a first battery 100 according to some embodiments of the present application, FIG. 3 is a schematic diagram of the structure of the first battery 100 according to some embodiments of the present application, and FIG. 4 is a schematic diagram of the structure of a first thermal insulation member 50 according to some embodiments of the present application. Some embodiments of the present application provide a battery 100 comprising a plurality of battery cells 20, a plurality of thermal management components 30, a first connecting tube 40, and a first thermal insulation member 50. The plurality of thermal management components 30 are spaced apart along a first direction X, each having a first end 31 and a second end 32 in a second direction Y. At least one battery cell 20 is disposed between two adjacent thermal management components 30, with the first direction X and the second direction Y being perpendicular. The first connecting tube 40 is located on one side of the battery cell 20 in the second direction Y, connecting the first ends 31 of the two adjacent thermal management components 30. At least a portion of the first thermal insulation member 50 is located between the first connecting tube 40 and the battery cell 20 in the second direction Y.

[0058] In the figure, the first direction X is the length direction of the battery 100, the second direction Y is the width direction of the battery 100, and the third direction Z is the height direction of the battery 100. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0059] In order to meet different power requirements, the battery 100 in some embodiments of the present application may include a plurality of battery cells 20 .

[0060] The thermal management component 30 is used to regulate the temperature of the battery cells 20. It can contain a fluid or a solid-liquid phase change material to regulate the temperature of the battery cells 20. Specifically, the fluid can be a liquid or a gas. The solid-liquid phase change material is initially solid and becomes liquid after absorbing heat.

[0061] Adjusting the temperature refers to heating or cooling the multiple battery cells 20. In the case of cooling or lowering the temperature of the battery cells 20, the thermal management component 30 is used to accommodate a cooling fluid or a solid-liquid phase change material to lower the temperature of the multiple battery cells 20. At this time, the thermal management component 30 can also be called a cooling component, a cooling system or a cooling plate, etc., and the fluid it accommodates can also be called a cooling medium or a cooling fluid, more specifically, a coolant or a cooling gas. In addition, the thermal management component 30 can also be used for heating to increase the temperature of the multiple battery cells 20, which is not limited in the embodiments of the present application. Optionally, the fluid can be circulating to achieve a better temperature regulation effect. Optionally, the fluid can be water, a mixture of water and ethylene glycol, or air, etc.

[0062] It is understandable that the thermal management component 30 may be fixedly connected to the battery cell 20 by an adhesive; or, the thermal management component 30 may be clamped and fixed by two adjacent battery cells 20 , which is not limited in the embodiments of the present application.

[0063] The first end 31 and the second end 32 are two top ends of the thermal management component 30 distributed along the second direction Y;

[0064] The first connecting tube 40 is used to connect the first ends 31 of two adjacent heat management components 30. Fluid or solid-liquid phase change material can flow between the two adjacent heat management components 30 through the first connecting tube 40.

[0065] It is understandable that the first connecting tube 40 may be connected to the first end 31 ; or, the first connecting tube 40 may also be connected to a side portion of the thermal management component 30 close to the first end 31 , which is not limited in the embodiments of the present application.

[0066] It is understandable that the first connecting tube 40 can be made of plastic, and the first connecting tube 40 can be connected to the first end 31 by an adhesive; or the first connecting tube 40 can also be connected to the first end 31 by being integrally formed with the first end 31, and the embodiments of the present application are not limited thereto.

[0067] It can be understood that the first thermal insulation member 50 can be connected to the battery cell 20; or, the first thermal insulation member 50 can also be connected to the first connecting tube 40 to achieve the installation purpose of at least a portion of the first thermal insulation member 50 being located between the first connecting tube 40 and the battery cell 20.

[0068] Among them, the first thermal insulation member 50 can be connected to the first connecting tube 40 by an adhesive; or, referring to Figure 4, a clamping portion 51 adapted to the first connecting tube 40 can be provided on the first thermal insulation member 50, so that the first thermal insulation member 50 is connected and fixed to the first connecting tube 40 by clamping; or, the entire first thermal insulation member 50 is a clamping portion 51, so that the thermal insulation member is connected and fixed to the first connecting tube 40 by clamping, and the embodiments of the present application are not limited thereto.

[0069] Thus, when the battery cell 20 in the battery cell 20 expands due to thermal runaway, the first thermal insulation member 50 can abut against the battery cell 20 before the first connecting tube 40 along the second direction Y, and the battery cell 20 abuts against the first connecting tube 40 through the first thermal insulation member 50, thereby reducing the heat transferred from the battery cell 20 that has thermal runaway to the first connecting tube 40, thereby reducing the probability of the battery cell 20 outer shell melting the first connecting tube 40, and thereby reducing the probability of fluid leakage from the first connecting tube 40 due to contact with the battery cell 20 outer shell, thereby improving the reliability of the battery 100 during use.

[0070] According to some embodiments of the present application, optionally referring to FIG. 5 and further referring to FIG. 6 , FIG. 5 is a schematic diagram of the exploded structure of the second type of battery 100 according to some embodiments of the present application, and FIG. 6 is a schematic diagram of the cross-sectional structure of the second type of battery 100 according to some embodiments of the present application along the first direction X. The battery 100 may further include a housing 10, in which the battery cells 20 and the thermal management component 30 are housed. A first thermal insulator 50 is connected to the battery cells 20 and / or the housing 10.

[0071] The box body 10 is a housing for providing a stable and sealed working environment for the battery cells 20 .

[0072] As can be understood, referring to Figure 5, the case 10 may include two parts, referred to herein as a first case 11 and a second case 12, which are buckled together along the third direction Z. The shapes of the first case 11 and the second case 12 may be determined according to the shapes of the plurality of battery cells 20, and the first case 11 and the second case 12 may each have an opening. For example, the first case 11 and the second case 12 may both be hollow rectangular parallelepipeds and each may have only one open face. The opening of the first case 11 and the opening of the second case 12 are arranged opposite to each other, and the first case 11 and the second case 12 are buckled together to form a case 10 with a closed chamber. The battery cells 20 and the thermal management component 30 are combined and placed in the case 10 formed by buckling the first case 11 and the second case 12.

[0073] Optionally, the first box body 11 and the second box body 12 can be made of a material with a certain hardness and strength (such as aluminum alloy). In this way, the box body 10 is not easily deformed when squeezed or collided, so that the battery cell 20 can have a higher structural strength, which is beneficial to reducing the degree of damage to the battery 100 caused by external force collision.

[0074] It can be understood that the second box body 12 can be used to support the battery cell 20 and to be connected to the first thermal insulation member 50 .

[0075] It is understandable that the first thermal insulation member 50 can be connected to the battery cell 20 by an adhesive; or, the first thermal insulation member 50 can be clamped and fixed by the side of the battery cell 20 facing the first connecting tube 40 and the first connecting tube 40, which is not limited to the embodiments of the present application.

[0076] It can be understood that the first thermal insulation member 50 can be connected to the second box body 12 by an adhesive; or, the first thermal insulation member 50 can also be fixed to the second box body 12 by bolt connection; or, the first thermal insulation member 50 can also abut against the second box body 12, and the embodiments of the present application are not limited thereto.

[0077] The portion of the first thermal insulation member 50 connected to the battery cell 20 and / or the second housing 12 can provide support for the first thermal insulation member 50, thereby improving the stability of the first thermal insulation member 50 during operation of the battery 100. When the first thermal insulation member 50 is connected to both the battery cell 20 and the second housing 12, both the battery cell 20 and the second housing 12 provide support for the first thermal insulation member 50, which is beneficial for improving the stability of the first thermal insulation member 50 during operation of the battery 100.

[0078] According to some embodiments of the present application, optionally, please continue to refer to FIG. 6 , along the second direction Y, there is a first gap 501 between the first thermal insulation member 50 and the first connecting pipe 40 .

[0079] "There is a first gap 501 between the first thermal insulation member 50 and the first connecting tube 40" means that the first thermal insulation member 50 and the first connecting tube 40 are spaced from each other to provide space for the battery cell 20 to expand, so that when the battery cell 20 expands, the first thermal insulation member 50 will not directly abut against the first connecting tube 40, but will only abut against the first connection after the deformation of the battery cell 20 reaches a certain extent.

[0080] In this way, the first thermal insulator 50 will only contact the first connecting tube 40 when the expansion deformation of the battery cell 20 exceeds the first gap 501. This not only alleviates the external pressure exerted on the first connecting tube 40 by the expansion of the battery cell 20, but also reduces the heat transferred to the first connecting tube 40 by the battery cell 20 experiencing thermal runaway. This is beneficial in reducing the probability of fluid leakage from the first connecting tube 40 due to contact with the battery cell 20 casing.

[0081] According to some embodiments of the present application, optionally, please continue to refer to Figure 7 and further refer to Figure 8. Figure 7 is a schematic diagram of the cross-sectional structure of the third battery 100 along the first direction X in some embodiments of the present application, and Figure 8 is a schematic diagram of the structure of another first thermal insulation member 50 in some embodiments of the present application. The first thermal insulation member 50 includes a first thermal insulation board 52 and a second thermal insulation board 53. The second thermal insulation board 53 includes a first portion 531 and a second portion 532. Along the second direction Y, the first thermal insulation board 52 is arranged between the first portion 531 and the battery cell 20. The first thermal insulation board 52 is connected to the battery cell 20, and the first portion 531 is connected to the first thermal insulation board 52. Along the second direction Y, there is a second gap 502 between the second portion 532 and the battery cell 20, and the projection of the first connecting tube 40 is located within the second portion 532.

[0082] The first thermal insulation plate 52 is a component of the first thermal insulation member 50 connected to the battery cell 20 .

[0083] Optionally, one end of the first heat insulation plate 52 can be connected to the side of the battery cell 20 facing the first connecting tube 40; or, one end of the first heat insulation plate 52 can be connected to the side of the battery cell 20 facing the first box body 11, which is not limited in the embodiments of the present application.

[0084] It is understandable that the first thermal insulation board 52 can be connected to the battery cell 20 by an adhesive; or, the first thermal insulation board 52 can be fixedly connected to the shell of at least one of the battery cells 20 by integral molding, which is not limited in the embodiments of the present application.

[0085] It is understood that the projection of the first connecting tube 40 does not intersect with the projection of the first insulation board 52 along the third direction Z. Also, the projection of the other end of the first insulation board 52 is located between the projection of the first connecting tube 40 and the projection of the battery cell 20 along the third direction Z.

[0086] The second heat insulating plate 53 is a component of the first heat insulating member 50 that is in contact with the first connecting pipe 40 when the battery cell 20 expands.

[0087] The first portion 531 is a portion where the second heat insulating plate 53 is connected to the other end of the first heat insulating plate 52 .

[0088] Optionally, the first portion 531 may be connected to the first heat insulation board 52 by an adhesive; or the first portion 531 may be fixedly connected to the first heat insulation board 52 by integral molding, which is not limited in the embodiments of the present application.

[0089] The second portion 532 is a portion of the second heat insulating plate 53 that abuts against the first connecting pipe 40 when the battery cell 20 expands.

[0090] Optionally, the second part 532 may be connected to the first part 531 by an adhesive; or the second part 532 may be fixedly connected to the first part 531 by integral molding, which is not limited in the embodiments of the present application.

[0091] It can be understood that along the third direction Z, the relative positions of the first portion 531 and the second portion 532 may vary to a certain extent.

[0092] When along the third direction Z, the first heat insulation plate 52 is located between the projection of the first connecting tube 40 on the battery cell 20 and the inner wall of the second box body 12 facing the first connecting tube 40, along the third direction Z, the first part 531 is located between the second part 532 and the inner wall of the second box body 12 facing the first connecting tube 40.

[0093] When along the third direction Z, the first heat insulation plate 52 is located between the projection of the first connecting tube 40 on the battery cell 20 and the inner wall of the first box body 11 facing the first connecting tube 40, along the third direction Z, the first part 531 is located between the second part 532 and the inner wall of the first box body 11 facing the first connecting tube 40.

[0094] The presence of a second gap 502 between the second portion 532 and the battery cell 20 refers to the spacing between the second portion 532 and the battery cell 20. This ensures that when the battery cell 20 expands to bring the second portion 532 into contact with the first connecting tube 40, the second portion 532 and the battery cell 20 do not directly contact each other. Instead, the second portion 532 contacts the battery cell 20 only after the battery cell 20 has deformed to a certain degree.

[0095] Thus, after the second portion 532 abuts the first connecting tube 40, the first thermal insulator 50 will only contact the battery cell 20 when the subsequent expansion deformation of the battery cell 20 exceeds the second gap 502. Only then will the expansion of the battery cell 20 exert pressure on the first connecting tube 40, thereby reducing the external pressure exerted by the expansion of the battery cell 20 on the first connecting tube 40. This also reduces the amount of heat transferred to the first connecting tube 40 from a battery cell 20 experiencing thermal runaway, which is beneficial for reducing the probability of fluid leakage from the first connecting tube 40 due to contact with the battery cell 20 casing.

[0096] According to some embodiments of the present application, optionally referring to FIG. 9 and further to FIG. 10 , FIG. 9 is a schematic cross-sectional view of a fourth type of battery 100 according to some embodiments of the present application along a first direction X, and FIG. 10 is a schematic structural view of yet another type of first thermal insulation member 50 according to some embodiments of the present application. Along a second direction Y, the end of the first thermal insulation member 50 facing away from the battery cell 20 extends beyond the first connecting tube 40.

[0097] “The end of the first thermal insulation member 50 facing away from the battery cell 20 extends beyond the first connecting tube 40 ” means that along the third direction Z, the projection of the first connecting tube 40 falls within the first thermal insulation member 50 , and the edge of the projection of the first connecting tube 40 does not overlap with the end of the first thermal insulation member 50 facing away from the battery cell 20 .

[0098] Thus, when the housing 10 vibrates under the action of an external force, causing the battery cells 20 to move relative to the housing 10 in the second direction Y, the first thermal insulator 50 will abut against the housing 10 earlier than the battery cells 20, thereby providing a buffer for the battery cells 20. This is beneficial in reducing the extent of damage to the battery 100 caused by external force collisions.

[0099] According to some embodiments of the present application, optionally, referring to FIG. 9 and further to FIG. 10 , the first thermal insulator 50 includes a first side plate 54 and a first bottom plate 55. Along the second direction Y, the first side plate 54 is disposed between the first connecting tube 40 and the battery cell 20. Along the second direction Y, one end of the first bottom plate 55 is connected to the first side plate 54, and the other end extends beyond the first connecting tube 40.

[0100] The first side plate 54 refers to a portion of the first thermal insulation member 50 located along the second direction Y between the side surface of the battery cell 20 facing the first connecting pipe 40 and the first connecting pipe 40 .

[0101] It is understood that the first side plate 54 can be connected to the side of the battery cell 20 facing the first connecting tube 40. When the first side plate 54 is connected to the side of the battery cell 20 facing the first connecting tube 40, the battery cell 20 will provide support to the first side plate 54, which is beneficial to improving the stability of the first thermal insulation member 50.

[0102] Optionally, the first side plate 54 may be connected to the battery cell 20 by an adhesive; or, the first side plate 54 may be fixedly connected to the shell of at least one of the battery cells 20 by integral molding, which is not limited in the embodiments of the present application.

[0103] The first bottom plate 55 is a portion of the first thermal insulation member 50 connected to the first side plate 54 and extending along the second direction Y.

[0104] It is understandable that the first bottom plate 55 can be connected to the end of the first side plate 54 facing the bottom wall 121; or the first bottom plate 55 can be connected to the side of the first side plate 54 facing the first connecting pipe 40, which is not limited in the embodiments of the present application.

[0105] Optionally, the first bottom plate 55 may be connected to the first side plate 54 by an adhesive; or, the first bottom plate 55 may be fixedly connected to the first side plate 54 by integral molding, which is not limited in the embodiments of the present application.

[0106] “The other end of the first bottom plate 55 extends beyond the first connecting tube 40 ” means that along the third direction Z, the projection of the first connecting tube 40 falls within the first bottom plate 55 , and the end of the first bottom plate 55 facing away from the battery cell 20 extends beyond the projection of the first connecting tube 40 .

[0107] The design of one end of the first bottom plate 55 extending beyond the first connecting tube 40 along the second direction Y enables the first bottom plate 55 to abut against the case 10 earlier than the battery cell 20 when the battery cell 20 moves relative to the case 10 in the second direction Y, thereby providing a buffer for the battery cell 20. Simultaneously, the reaction force exerted by the first bottom plate 55 on the battery cell 20 is evenly distributed across the battery cell 20 by the first side plate 54, which is beneficial for reducing damage to the battery 100 caused by external collisions.

[0108] According to some embodiments of the present application, optionally, please continue to refer to Figure 9 and further refer to Figure 10, the box body 10 includes a bottom wall 121 and a top wall 111 arranged relatively along the third direction Z, the bottom wall 121 is used to support the battery cell 20, and the first bottom plate 55 is connected to the bottom wall 121.

[0109] The top wall 111 and the bottom wall 121 are two inner walls of the box body 10 extending along the third direction Z and perpendicular to the third direction Z. The bottom wall 121 is used to support the battery cells 20 and the thermal management component 30. Furthermore, other components may be provided on the bottom wall 121. For example, the bottom wall 121 may be provided with a structure for securing the battery cells 20 and / or the thermal management component 30. Alternatively, the bottom wall 121 may be provided with an insulating component for accommodating the battery cells 20. This is not limited in the embodiments of the present application.

[0110] It can be understood that the bottom wall 121 can be located in the second box body 12 . When the bottom wall 121 is located in the second box body 12 , the top wall 111 can be located in the first box body 11 .

[0111] “The first bottom plate 55 is connected to the bottom wall 121 ” may mean that a portion of the edge of the first bottom plate 55 is connected to the bottom wall 121 , or the side surface of the first bottom plate 55 facing the bottom wall 121 is connected to the bottom wall 121 .

[0112] Optionally, the first bottom plate 55 can be connected to the bottom wall 121 by an adhesive; or, the first bottom plate 55 can be fixed to the bottom wall 121 by bolts; or, the first bottom plate 55 can directly abut the bottom wall 121, which is not limited in the embodiments of the present application.

[0113] The first bottom plate 55 is connected to the bottom wall 121 , so that the bottom wall 121 can provide support for the first thermal insulation member 50 , which is beneficial to improving the stability of the first thermal insulation member 50 during operation.

[0114] According to some embodiments of the present application, optionally, referring to FIG. 9 and further to FIG. 10 , the first thermal insulator 50 further includes a first top plate 56. Along the third direction Z, the first connecting tube 40 is located between the first top plate 56 and the first bottom plate 55. Along the second direction Y, one end of the first top plate 56 is connected to the first side plate 54, and the other end extends beyond the first connecting tube 40.

[0115] The first top plate 56 is a portion of the first thermal insulation member 50 connected to the first side plate 54 and extending along the second direction Y. Along the third direction Z, the first top plate 56 and the first bottom plate 55 are respectively located on both sides of the first connecting pipe 40 .

[0116] It is understandable that the first top plate 56 can be connected to the end of the first side plate 54 facing the top wall 111; or the first bottom plate 55 can be connected to the side of the first side plate 54 facing the first connecting pipe 40, which is not limited in the embodiments of the present application.

[0117] Optionally, the first top plate 56 may be connected to the first side plate 54 by an adhesive; or, the first top plate 56 may be fixedly connected to the first side plate 54 by integral molding, which is not limited in the embodiments of the present application.

[0118] “The other end of the first top plate 56 extends beyond the first connecting tube 40 ” means that along the third direction Z, the projection of the first connecting tube 40 falls within the first top plate 56 , and the end of the first top plate 56 facing away from the battery cell 20 extends beyond the projection of the first connecting tube 40 .

[0119] It is understood that there may be multiple first bottom plates 55, which are spaced apart along the third direction Z on the first side plate 54 and located between the first connecting tube 40 and the bottom wall 121. Furthermore, there may be multiple first top plates 56, which are spaced apart along the third direction Z on the first side plate 54 and located between the first connecting tube 40 and the top wall 111.

[0120] The design of having one end of the first bottom plate 55 and the first top plate 56 extend beyond the first connecting tube 40 along the second direction Y enables the first bottom plate 55 and the first top plate 56 to abut the case 10 earlier than the battery cells 20 when the battery cells 20 move relative to the case 10 in the second direction Y, thereby providing a cushioning effect for the battery cells 20. Simultaneously, the first top plate 56 and the first bottom plate 55 abut the inner wall of the case 10 on either side of the first connecting tube 40 along the third direction Z, preventing the case 10 from squeezing the first connecting tube 40. This is beneficial in reducing damage to the battery 100 caused by external collisions.

[0121] According to some embodiments of the present application, optionally, please continue to refer to Figure 10, the first top plate 56 has a third end 561 facing away from the first side plate 54, the first bottom plate 55 has a fourth end 551 facing away from the first side plate 54, and the third end 561 is flush with the fourth end 551.

[0122] The third end 561 refers to an end of the first top plate 56 facing away from the first side plate 54 .

[0123] The fourth end 551 refers to an end of the first bottom plate 55 facing away from the first side plate 54 .

[0124] “The third end 561 is flush with the fourth end 551 ” means that along the third direction Z, the projections of the third end 561 and the fourth end 551 coincide with each other.

[0125] Thus, when the battery cell 20 moves relative to the housing 10 in the second direction Y, the first top plate 56 and the first bottom plate 55 can simultaneously abut against the inner wall of the housing 10 facing the first connecting tube 40, thereby providing a cushioning effect for the battery cell 20. This also makes the reaction force on the first side plate 54 more uniform, which is beneficial for improving the stability of the first thermal insulation member 50 during operation.

[0126] According to some embodiments of the present application, optionally, the first thermal insulation member 50 is made of mica paper, ceramic composite tape or hard rubber.

[0127] It can be understood that the first thermal insulation member 50 should be made of a material with a relatively low thermal conductivity coefficient.

[0128] Alternatively, the first thermal insulator 50 can be made of either a flexible or rigid material. If a rigid material is used, the first thermal insulator 50 possesses a certain strength, thereby providing a cushioning effect for the battery cells 20 when the first thermal insulator 50 contacts the housing 10 earlier than the battery cells 20 due to vibration. This is beneficial in reducing the damage to the battery 100 caused by collisions. More specifically, the rigid material can be hard rubber that withstands temperatures above 200°C without structural damage.

[0129] Furthermore, when the heat-resistant material is flexible, the first thermal insulator 50 can deform within a certain range. This allows for proper bending of the first thermal insulator 50 during installation on the battery cell 20, further facilitating installation. More specifically, the flexible material can be mica paper or ceramic composite tape, which withstands temperatures exceeding 200°C without structural damage.

[0130] It can be understood that "the first thermal insulation member 50 is made of mica paper, ceramic composite tape or hard rubber" may mean that at least a part of at least one component constituting the first thermal insulation member 50 is made of mica paper, ceramic composite tape or hard rubber.

[0131] The first thermal insulation member 50 is made of mica paper, ceramic composite tape or hard rubber, which is beneficial for reducing the probability of fluid leakage from the first connecting pipe 40 due to contact with the battery cell 20 housing.

[0132] According to some embodiments of the present application, optionally, with reference to FIG. 11 and further with reference to FIG. 12 , FIG. 11 and FIG. 12 are schematic exploded views of different battery 100 structures according to some embodiments of the present application. The battery 100 further includes a second connecting tube 41 and a second thermal insulator 57 . The second connecting tube 41 is located on a side of the battery cell 20 facing away from the first connecting tube 40 in the second direction Y. The second connecting tube 41 connects the second ends 32 of two adjacent thermal management components 30. Along the second direction Y, at least a portion of the second thermal insulator 57 is located between the second connecting tube 41 and the battery cell 20.

[0133] The second connecting tube 41 is used to connect the second ends 32 of two adjacent heat management components 30. Fluid or solid-liquid phase change material can flow between the two adjacent heat management components 30 through the second connecting tube 41.

[0134] It is understandable that the second connecting pipe 41 can be connected to the second end 32; or, the second connecting pipe 41 can also be connected to a side portion of the thermal management component 30 close to the second end 32, which is not limited in the embodiments of the present application.

[0135] It is understandable that the second connecting tube 41 can be made of plastic, and the second connecting tube 41 can be connected to the second end 32 by an adhesive; or, the second connecting tube 41 can also be connected to the second end 32 by being integrally formed with the second end 32, which is not limited in the embodiments of the present application.

[0136] It is understandable that the second thermal insulation member 57 can be connected to the battery cell 20; or the second thermal insulation member 57 can also be connected to the second connecting tube 41, so as to achieve the installation purpose of at least a portion of the second thermal insulation member 57 being located between the second connecting tube 41 and the battery cell 20.

[0137] The second thermal insulation member 57 can be connected to the second connecting tube 41 by an adhesive; or, a clamping portion 51 adapted to the first connecting tube 40 can be provided on the second thermal insulation member 57, so that the second thermal insulation member 57 is connected and fixed to the first connecting tube 40 by clamping.

[0138] Optionally, the second thermal insulation member 57 may be disposed symmetrically to the first thermal insulation member 50 relative to the battery cell 20 .

[0139] Thus, when the battery cell 20 in the battery cell 20 expands due to thermal runaway, the second thermal insulation member 57 can abut against the battery cell 20 along the second direction Y before the second connecting tube 41, and the battery cell 20 abuts against the second connecting tube 41 through the second thermal insulation member 57, thereby reducing the heat transferred from the battery cell 20 that has thermal runaway to the second connecting tube 41, thereby reducing the probability of the battery cell 20 shell melting the second connecting tube 41, and thereby reducing the probability of fluid leakage from the second connecting tube 41 due to contact with the battery cell 20 shell, thereby improving the reliability of the battery 100 during use.

[0140] According to some embodiments of the present application, referring to FIG. 7 and further referring to FIG. 8 and FIG. 11 , a battery 100 is provided. A battery cell 20 includes a plurality of battery cells 20. A plurality of thermal management components 30 are spaced apart along a first direction X. Each thermal management component 30 has a first end 31 and a second end 32 in a second direction Y. A battery cell 20 is disposed between two adjacent thermal management components 30. The battery cells 20 and thermal management components 30 are housed within a housing 10. A first connecting tube 40 and a second connecting tube 41 are respectively located on one side of the battery cells 20 in the second direction Y. The first connecting tube 40 connects the first ends 31 of two adjacent thermal management components 30, and the second connecting tube 41 connects the second ends 32 of two adjacent thermal management components 30. A first thermal insulator 50 includes a first thermal insulation board 52 and a second thermal insulation board 53. The second thermal insulation board 53 includes a first portion 531 and a second portion 532. Along the second direction Y, the first thermal insulation board 52 is disposed between the first portion 531 and the battery cells 20. The first thermal insulation plate 52 is connected to the battery cell 20, and the first portion 531 is connected to the first thermal insulation plate 52. Along the second direction Y, a second gap 502 exists between the second portion 532 and the battery cell 20, with the projection of the first connecting tube 40 located within the second portion 532. Along the second direction Y, at least a portion of the second thermal insulation member 57 is located between the second connecting tube 41 and the battery cell 20. The second thermal insulation member 57 is symmetrically positioned with the first thermal insulation member 50. This prevents the battery cell 20 from directly contacting the first and second connecting tubes 40, 41 when thermally expanded.

[0141] According to some embodiments of the present application, referring to FIG. 9 and further referring to FIG. 10 and FIG. 12 , a battery 100 is provided. A battery cell 20 includes a plurality of battery cells 20. A plurality of thermal management components 30 are spaced apart along a first direction X. Each thermal management component 30 has a first end 31 and a second end 32 in a second direction Y. A battery cell 20 is disposed between two adjacent thermal management components 30. The battery cells 20 and thermal management components 30 are housed within a housing 10. A first connecting tube 40 and a second connecting tube 41 are respectively located on one side of the battery cells 20 in the second direction Y. The first connecting tube 40 connects the first ends 31 of two adjacent thermal management components 30, and the second connecting tube 41 connects the second ends 32 of two adjacent thermal management components 30. A first thermal insulator 50 includes a first side plate 54, a first bottom plate 55, and a first top plate 56. Along the second direction Y, one end of the first top plate 56 is connected to the first side plate 54, and the other end extends beyond the first connecting tube 40. Along the second direction Y, one end of the first bottom plate 55 is connected to the first side plate 54, and the other end extends beyond the first connecting tube 40. Along the third direction Z, the first connecting tube 40 is located between the first top plate 56 and the first bottom plate 55, and the first bottom plate 55 is connected to the bottom wall 121. Along the second direction Y, at least a portion of the second thermal insulation member 57 is located between the second connecting tube 41 and the battery cell 20. It is symmetrically arranged with the first thermal insulation member 50. This ensures that the battery cell 20 will not directly contact the first connecting tube 40 and the second connecting tube 41 when it expands due to heat.

[0142] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A battery, comprising: a plurality of battery cells; a plurality of thermal management components, the plurality of thermal management components being spaced apart along a first direction, each of the thermal management components having a first end and a second end in a second direction, at least one of the battery cells being disposed between two adjacent ones of the thermal management components, the first direction and the second direction being perpendicular; a first connecting pipe, located on one side of the battery cell in the second direction, the first connecting pipe connecting the first ends of two adjacent ones of the thermal management components; a first heat insulation member, along the second direction, at least a part of the first heat insulation member being located between the first connecting pipe and the battery cell.

2. The battery according to claim 1, wherein, The battery further includes a box body, and the battery cells and the thermal management components are accommodated in the box body; The first heat insulation member is connected to the battery cell and / or the box body.

3. The battery according to claim 2, wherein, Along the second direction, there is a first gap between the first heat insulation member and the first connecting pipe.

4. The battery according to any one of claims 1-3, wherein, The first heat insulation member includes a first heat insulation plate and a second heat insulation plate; The second heat insulation plate includes a first part and a second part, along the second direction, the first heat insulation plate is disposed between the first part and the battery cell, the first heat insulation plate is connected to the battery cell, and the first part is connected to the first heat insulation plate; Along the second direction, there is a second gap between the second part and the battery cell, and the projection of the first connecting pipe is located within the second part.

5. The battery according to any one of claims 1-4, wherein, Along the second direction, one end of the first heat insulation member facing away from the battery cell extends beyond the first connecting pipe.

6. The battery according to claim 5, wherein, The first heat insulation member includes a first side plate and a first bottom plate; Along the second direction, the first side plate is disposed between the first connecting pipe and the battery cell; Along the second direction, one end of the first bottom plate is connected to the first side plate, and the other end extends beyond the first connecting pipe.

7. The battery according to claim 6, wherein, The box body includes a bottom wall and a top wall disposed opposite to each other in a third direction, the bottom wall being used for supporting the battery cells, and the first bottom plate is connected to the bottom wall; The first direction, the second direction, and the third direction are perpendicular to each other pairwise.

8. The battery according to claim 6 or 7, wherein, The first heat insulation member further includes a first top plate; Along the third direction, the first connecting pipe is located between the first top plate and the first bottom plate; Along the second direction, one end of the first top plate is connected to the first side plate, and the other end extends beyond the first connecting pipe.

9. The battery according to claim 8, wherein, The first top plate has a third end facing away from the first side plate, and the first bottom plate has a fourth end facing away from the first side plate, and the third end and the fourth end are flush.

10. The battery according to any one of claims 1-9, wherein, The first heat insulation member is made of mica paper, ceramic composite tape, or hard rubber.

11. The battery according to any one of claims 1-10, wherein, The battery further includes: a second connecting pipe, located on the side of the battery cell in the second direction facing away from the first connecting pipe, the second connecting pipe connecting the second ends of two adjacent ones of the thermal management components; a second heat insulation member, along the second direction, at least a part of the second heat insulation member being located between the second connecting pipe and the battery cell.

12. An electrical device, comprising the battery according to any one of claims 1-11, the battery being used for providing electrical energy.

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