Battery and electric equipment

Abstract

The embodiment of the utility model provides a battery and electric equipment. The battery comprises a plurality of battery monomers, a plurality of heat management parts, a first connecting pipe and a first heat insulation part, the plurality of heat management parts are arranged at intervals along a first direction, and each heat management part is provided with a first end and a second end in a second direction. At least one battery monomer is arranged between every two adjacent heat management components, and the first direction is perpendicular to the second direction. The first connecting pipe is positioned on one side of the battery monomer in the second direction; the first connecting pipe is connected with the first ends of the two adjacent heat management components. And in the second direction, at least one part of the first heat insulation part is positioned between the first connecting pipe and the battery monomer. Therefore, when the single batteries in the single batteries expand due to thermal runaway, the first heat insulation part can abut against the single batteries before the first connecting pipe in the second direction, so that heat transferred to the first connecting pipe by the single batteries subjected to thermal runaway is reduced.

Description

Technical Field

[0001] The present application relates to the field of batteries, and more specifically, to a battery and an electrical device. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] 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.

[0004] Therefore, how to improve battery reliability is an urgent problem to be solved in battery technology. Utility Model Content

[0005] In view of the above problems, the embodiments of the present application provide a battery and an electrical device, which can improve the reliability of the battery during use.

[0006] 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 arranged at intervals 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 arranged between two adjacent thermal management components, and the first direction and the second direction 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 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.

[0007] In the technical solution of the embodiment of the present application, a first heat insulating member is arranged between the battery cell and the first connecting tube along the second direction. Such a design enables the first heat insulating member to abut against the battery cell before the first connecting tube along the second direction when the battery cell in the battery cell expands due to thermal runaway, so as to reduce the heat transferred from the battery cell in 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, and improving the reliability of the battery when in use.

[0008] In some embodiments, the battery further comprises a housing, in which the battery cells and the thermal management components are housed. The first thermal insulation member is connected to the battery cells and / or the housing. The housing provides installation space for the battery cells and the thermal management components, thereby improving the integration of the battery. At the same time, the housing also provides installation space for the first thermal insulation member, thereby facilitating the installation of the first thermal insulation member.

[0009] In some embodiments, there is a first gap between the first thermal insulation member and the first connecting tube along the second direction. Such a design ensures that when the battery cell is in thermal runaway, the first thermal insulation member will contact the first connecting tube only when the expansion deformation is greater than the first gap, which is beneficial for reducing the heat transferred from the battery cell in thermal runaway to the first connecting tube.

[0010] 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 in 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 expands further, which is beneficial to slow down the heat transferred from the battery cell that has thermal runaway to the first connecting tube.

[0011] In some embodiments, along the second direction, the end of the first heat insulating member facing away from the battery cell exceeds the first connecting tube. Such a design causes the box to vibrate under the action of external force, so that when the battery cell moves relative to the box in the second direction, the first heat insulating member will abut against the box earlier than the battery cell, thereby playing a buffering role for the battery cell. This is beneficial to reducing the degree of damage to the battery caused by external force collision.

[0012] 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. Such a design enables the first bottom plate to abut against the box earlier than the battery cell when the battery cell moves in the second direction relative to the box, thereby buffering 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 to reducing the degree of damage to the battery caused by external force collision.

[0013] In some embodiments, the box body includes a bottom wall and a top wall arranged opposite to each other along a third direction, the bottom wall is used to support the battery cell, 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. The design of the bottom wall provides an installation position for installing the battery cell and / or a component for fixing the battery cell. 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 to improving the stability of the first thermal insulation member during operation.

[0014] 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 enables the first top plate to abut against the box earlier than the battery cell when the battery cell moves in the second direction relative to the box, thereby buffering the battery cell. At the same time, the reaction force exerted on the first top plate is absorbed by the first side plate or distributed to the battery cell, which is beneficial to reducing the degree of damage to the battery caused by external force collision.

[0015] In some embodiments, the first top plate has a third end facing away from the first side plate, the first bottom plate has a fourth end facing away from the first side plate, and the third end is flush with the fourth end. Such a design allows the first top plate and the first bottom plate to simultaneously abut against the inner wall of the box body facing the first connecting tube when the battery cell moves relative to the box body in the second direction, thereby providing a buffer for the battery cell. At the same time, the reaction force on the first side plate is also more uniform, which is beneficial to improving the stability of the first thermal insulation component during operation.

[0016] In some embodiments, the first thermal insulation member is made of mica paper, ceramic composite tape or hard rubber. The above materials have a lower thermal conductivity, thereby reducing the transfer of heat in the thermal insulation member, which is beneficial to reducing the probability of fluid leakage from the first connecting pipe due to contact with the battery cell housing.

[0017] 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 that is 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 enables 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 enables 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 when in use.

[0018] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0021] Figure 2 A schematic diagram of the exploded structure of a first battery according to some embodiments of the present application;

[0022] Figure 3 A schematic diagram of the structure of a first battery in some embodiments of the present application;

[0023] Figure 4 This is a schematic structural diagram of a first thermal insulation member in some embodiments of the present application;

[0024] Figure 5 A schematic diagram of the exploded structure of a second battery in some embodiments of the present application;

[0025] Figure 6 A schematic cross-sectional structure diagram of a second battery along a first direction X in some embodiments of the present application;

[0026] Figure 7 A schematic cross-sectional structure diagram of a third battery along a first direction X in some embodiments of the present application;

[0027] Figure 8 A schematic structural diagram of another first thermal insulation member in some embodiments of the present application;

[0028] Fig. 9 A schematic cross-sectional structure diagram of a fourth battery along a first direction X in some embodiments of the present application;

[0029] Fig.10 This is a schematic structural diagram of another first thermal insulation component in some embodiments of the present application;

[0030] Fig.11 A schematic diagram of the exploded structure of a third battery according to some embodiments of the present application;

[0031] Fig.12 This is a schematic diagram of the exploded structure of a fourth battery according to some embodiments of the present application.

[0032] Icon: 1000-Vehicle;

[0033] 100-battery; 200-controller; 300-motor;

[0034] 10-box; 11-first box; 111-top wall; 12-second box; 121-bottom wall;

[0035] 20-battery cell;

[0036] 30-thermal management component; 31-first end; 32-second end;

[0037] 40-first connecting pipe; 41-second connecting pipe;

[0038] 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 plate; 55-first bottom plate; 551-fourth end; 56-first top plate; 561-third end; 57-second thermal insulation member. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. 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. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] 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).

[0045] 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] In the embodiments of the present application, the 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., which are not limited in the embodiments of the present application. The battery cells may be cylindrical, flat, rectangular or other shapes, etc., which are not limited in the embodiments of the present application. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, which are not limited in the embodiments of the present application.

[0048] A battery cell includes 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 mainly works by the movement of metal ions between the positive electrode sheet and the negative electrode sheet.

[0049] 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 part of the development of new energy today. With the development of the new energy industry, batteries are gradually moving towards large-scale and integrated development.

[0050] However, when a large number of battery cells are stacked together, temperature control inside the battery is crucial. Uneven temperature distribution will cause the difference between battery cells to continue to expand and accelerate battery failure, directly affecting the battery's service life and easily affecting the battery's reliability. Taking soft-pack batteries as an example, a large number of soft-pack batteries need to be stacked together, and their support and protection are weak. When thermal runaway occurs in individual battery cells, it is easy to cause heat diffusion in a large area, thus affecting the battery's service life and reliability.

[0051] In order to improve the working reliability and stability of the battery in the battery assembly scheme, a thermal management component is usually set in the box. The thermal management component is used to contain fluid to adjust 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 has 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, causing safety problems.

[0052] In view of this, an embodiment of the present application provides a battery and an electrical device, wherein the battery includes a plurality of battery cells, a plurality of thermal management components, a first connecting tube and a first thermal insulation member. The plurality of thermal management components are arranged at intervals. At least one battery cell is arranged between two adjacent thermal management components. The first connecting tube is used to connect the first ends of two adjacent thermal management components. At least a portion of the first thermal insulation member is located between the first connecting tube and the battery cell.

[0053] In this way, when a battery cell in the battery pack 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 with 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 when in use.

[0054] The embodiments of the present application provide an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, 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., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0055] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device in an embodiment of the present application.

[0056] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may 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 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and 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.

[0057] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve 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.

[0058] According to some embodiments of the present application, referring to Figure 2 , and please refer to Figure 3 and Figure 4 , Figure 2 Schematic diagram of the exploded structure of a first battery 100 according to some embodiments of the present application. Figure 3 Schematic diagram of the structure of a first battery 100 according to some embodiments of the present application. Figure 4Schematic diagram of the structure of the first thermal insulation member 50 of some embodiments of the present application. Some embodiments of the present application provide a battery 100, including 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. A plurality of thermal management components 30 are arranged at intervals along a first direction X, and each thermal management component 30 has a first end 31 and a second end 32 in a second direction Y. At least one battery cell 20 is arranged between two adjacent thermal management components 30, and the first direction X and the second direction Y are perpendicular. The first connecting tube 40 is located on one side of the battery cell 20 in the second direction Y, and the first connecting tube 40 connects the first ends 31 of two adjacent thermal management components 30. Along the second direction Y, at least a portion of the first thermal insulation member 50 is located between the first connecting tube 40 and the battery cell 20.

[0059] 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.

[0060] In order to meet different power usage requirements, the battery 100 of some embodiments of the present application may include a plurality of battery cells 20 .

[0061] The thermal management component 30 is used to adjust the temperature of the battery cells 20. The thermal management component 30 can contain a fluid or a solid-liquid phase change material to adjust the temperature of the multiple battery cells 20. Specifically, the fluid can be a liquid or a gas. The original state of the solid-liquid phase change material is solid, and it can become liquid after absorbing heat.

[0062] Adjusting the temperature refers to heating or cooling 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 contain 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 may also be referred to as a cooling component, a cooling system or a cooling plate, etc., and the fluid contained therein may also be referred to as a cooling medium or a cooling fluid, more specifically, a coolant or a cooling gas. In addition, the thermal management component 30 may also be used for heating to increase the temperature of multiple battery cells 20, which is not limited in the embodiments of the present application. Optionally, the fluid may be circulating to achieve a better temperature regulation effect. Optionally, the fluid may be water, a mixture of water and ethylene glycol, or air, etc.

[0063] It can be understood that the thermal management component 30 can be fixedly connected to the battery cell 20 by an adhesive; or, the thermal management component 30 can also be clamped and fixed by two adjacent battery cells 20, which is not limited in the embodiments of the present application.

[0064] The first end 31 and the second end 32 are two top ends of the heat management component 30 distributed along the second direction Y;

[0065] 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.

[0066] It can be understood that the first connecting tube 40 can be connected to the first end 31; or, the first connecting tube 40 can also be connected to a part of the side surface of the thermal management component 30 close to the first end 31, which is not limited in the embodiments of the present application.

[0067] 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.

[0068] It is understandable 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.

[0069] The first heat insulating member 50 may be connected to the first connecting pipe 40 by an adhesive; or, Figure 4 The first thermal insulation member 50 may be provided with a clamping portion 51 adapted to the first connecting tube 40, so that the first thermal insulation member 50 is connected and fixed to the first connecting tube 40 by clamping; alternatively, 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.

[0070] Thereby, 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.

[0071] According to some embodiments of the present application, optionally, referring to Figure 5 , and please refer to Figure 6 , Figure 5 Schematic diagram of the exploded structure of a second battery 100 according to some embodiments of the present application. Figure 6The cross-sectional structure diagram of the second battery 100 of 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 accommodated. The first thermal insulation member 50 is connected to the battery cells 20 and / or the housing 10.

[0072] The box body 10 is a housing for providing a stable and sealed working environment for the battery cells 20 .

[0073] Understandable, see Figure 5 The box body 10 may include two parts, which are respectively referred to as the first box body 11 and the second box body 12, and the first box body 11 and the second box body 12 are buckled together along the third direction Z. The shapes of the first box body 11 and the second box body 12 can be determined according to the shapes of the plurality of battery cells 20, and the first box body 11 and the second box body 12 may each have an opening. For example, the first box body 11 and the second box body 12 may both be hollow rectangular parallelepipeds and each has only one open face, the opening of the first box body 11 and the opening of the second box body 12 are arranged opposite to each other, and the first box body 11 and the second box body 12 are buckled together to form a box body 10 with a closed chamber. After the battery cells 20 and the thermal management component 30 are combined, they are placed in the box body 10 formed by the buckling of the first box body 11 and the second box body 12.

[0074] 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.

[0075] 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 .

[0076] 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 also be clamped and fixed to the first connecting tube 40 by the side of the battery cell 20 facing the first connecting tube 40, which is not limited to the embodiments of the present application.

[0077] 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.

[0078] The portion where the first thermal insulation member 50 is connected to the battery cell 20 and / or the second box 12 can provide support for the first thermal insulation member 50, thereby improving the stability of the first thermal insulation member 50 when the battery 100 is working. When the first thermal insulation member 50 is connected to the battery cell 20 and the second box 12 at the same time, the battery cell 20 and the second box 12 both provide support for the first thermal insulation member 50, which is beneficial to improving the stability of the first thermal insulation member 50 when the battery 100 is working.

[0079] According to some embodiments of the present application, optionally, please continue to refer to Figure 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 .

[0080] "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 abut against the first connecting tube only after the deformation of the battery cell 20 reaches a certain degree.

[0081] In this way, the first heat insulating member 50 will contact the first connecting tube 40 only when the expansion deformation of the battery cell 20 is greater than the first gap 501. This not only alleviates the external force pressure on the first connecting tube 40 caused by the expansion of the battery cell 20, but also reduces the heat transferred from the battery cell 20 that has thermal runaway to the first connecting tube 40, which is beneficial to reducing the probability of fluid leakage from the first connecting tube 40 due to contact with the outer shell of the battery cell 20.

[0082] According to some embodiments of the present application, optionally, please continue to refer to Figure 7 , and further refer to Figure 8 , Figure 7 Schematic diagram of the cross-sectional structure of a third battery 100 along a first direction X in some embodiments of the present application, Figure 8 This is a schematic structural diagram of another first thermal insulation member 50 of 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 in the second portion 532.

[0083] The first heat insulating plate 52 refers to a component of the first heat insulating member 50 connected to the battery cell 20 .

[0084] Optionally, one end of the first insulation board 52 can be connected to the side of the battery cell 20 facing the first connecting tube 40; or, one end of the first insulation board 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.

[0085] It is understandable that the first heat insulation board 52 can be connected to the battery cell 20 by an adhesive; or, the first heat insulation board 52 can be fixedly connected to the shell of at least one battery cell 20 in the battery cell 20 by integral molding, and the embodiments of the present application are not limited thereto.

[0086] It can be understood that along the third direction Z, the projection of the first connecting tube 40 does not intersect with the projection of the first heat insulating plate 52 . Also, along the third direction Z, the projection of the other end of the first heat insulating plate 52 is located between the projection of the first connecting tube 40 and the projection of the battery cell 20 .

[0087] The second heat insulating plate 53 refers to a component of the first heat insulating member 50 for contacting the first connecting pipe 40 when the battery cell 20 expands.

[0088] The first portion 531 refers to a portion where the second heat insulating plate 53 is connected to the other end of the first heat insulating plate 52 .

[0089] Optionally, the first portion 531 may be connected to the first heat insulation board 52 by an adhesive; or the first portion 531 may also be fixedly connected to the first heat insulation board 52 by integral molding, which is not limited in the embodiments of the present application.

[0090] The second portion 532 is a portion of the second heat insulating plate 53 that is in contact with the first connecting pipe 40 when the battery cell 20 expands.

[0091] 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.

[0092] 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.

[0093] When 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 along the third direction Z.

[0094] When 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 along the third direction Z.

[0095] “A second gap 502 exists between the second portion 532 and the battery cell 20” means that the second portion 532 and the battery cell 20 are spaced apart from each other. When the battery cell 20 expands to drive the second portion 532 to abut against the first connecting tube 40, the second portion 532 and the battery cell 20 do not abut directly, but only abut against the battery cell 20 after the deformation of the battery cell 20 reaches a certain degree.

[0096] In this way, after the second portion 532 abuts against the first connecting tube 40, the first heat insulating member 50 will contact the battery cell 20 only when the subsequent expansion deformation of the battery cell 20 is greater than the second gap 502. At this time, the expansion of the battery cell 20 will exert a compressive force on the first connecting tube 40, thereby reducing the external force pressure on the first connecting tube 40 caused by the expansion of the battery cell 20. It also slows down the heat transferred from the battery cell 20 that has thermal runaway to the first connecting tube 40, which is beneficial to reducing the probability of fluid leakage from the first connecting tube 40 due to contact with the outer shell of the battery cell 20.

[0097] According to some embodiments of the present application, optionally, please refer to Fig. 9 , and further refer to Fig.10 , Fig. 9 Schematic diagram of the cross-sectional structure of a fourth battery 100 along a first direction X in some embodiments of the present application, Fig.10 Schematic diagram of another structure of the first heat insulating member 50 in some embodiments of the present application. Along the second direction Y, one end of the first heat insulating member 50 away from the battery cell 20 exceeds the first connecting tube 40 .

[0098] “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 .

[0099] In this way, when the box body 10 vibrates under the action of external force, causing the battery cell 20 to move relative to the box body 10 in the second direction Y, the first heat insulating member 50 will abut against the box body 10 earlier than the battery cell 20, thereby playing a buffering role for the battery cell 20. This is beneficial to reducing the degree of damage to the battery 100 caused by external force collision.

[0100] According to some embodiments of the present application, optionally, please continue to refer to Fig. 9 , and further refer to Fig.10 The first heat insulating member 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 thereof is beyond the first connecting tube 40.

[0101] The first side plate 54 refers to a portion of the first heat insulating member 50 along the second direction Y, located between the side surface of the battery cell 20 facing the first connecting pipe 40 and the first connecting pipe 40 .

[0102] It is understandable 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.

[0103] 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.

[0104] The first bottom plate 55 is a portion of the first thermal insulation member 50 that is connected to the first side plate 54 and extends along the second direction Y.

[0105] 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.

[0106] 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.

[0107] “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 one end of the first bottom plate 55 facing away from the battery cell 20 extends beyond the projection of the first connecting tube 40 .

[0108] The design that one end of the first bottom plate 55 protrudes beyond the first connecting tube 40 along the second direction Y enables the first bottom plate 55 to abut against the box body 10 earlier than the battery cell 20 when the battery cell 20 moves relative to the box body 10 in the second direction Y, thereby playing a buffering role for the battery cell 20. At the same time, the reaction force of the first bottom plate 55 on the battery cell 20 is evenly distributed to the battery cell 20 by the first side plate 54, which is beneficial to reducing the degree of damage to the battery 100 caused by external force collision.

[0109] According to some embodiments of the present application, optionally, please continue to refer to Fig. 9 , and further refer to Fig.10 The box body 10 includes a bottom wall 121 and a top wall 111 that are arranged opposite to each other 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 .

[0110] The top wall 111 and the bottom wall 121 are two inner walls distributed along the third direction Z in the box body 10 and perpendicular to the third direction Z, wherein the bottom wall 121 is used to support the battery cell 20 and the thermal management component 30. In addition, other components may be disposed on the bottom wall 121, for example, a structure for fixing the battery cell 20 and / or the thermal management component 30 may be disposed on the bottom wall 121; or, an insulating component may be disposed on the bottom wall 121 for placing the battery cell 20, which is not limited in the embodiments of the present application.

[0111] 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 .

[0112] “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 .

[0113] Optionally, the first bottom plate 55 may be connected to the bottom wall 121 by an adhesive; or, the first bottom plate 55 may be fixed to the bottom wall 121 by bolts; or, the first bottom plate 55 may directly abut against the bottom wall 121, which is not limited to the embodiments of the present application.

[0114] The first bottom plate 55 is connected to the bottom wall 121 , so that the bottom wall 121 can provide support force for the first thermal insulation member 50 , which is beneficial to improving the stability of the first thermal insulation member 50 during operation.

[0115] According to some embodiments of the present application, optionally, please continue to refer to Fig. 9 , and further refer to Fig.10The first heat insulating member 50 further includes a first top plate 56. Along the third direction Z, the first connecting pipe 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 thereof is beyond the first connecting pipe 40.

[0116] The first top plate 56 is a portion of the first heat insulating 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 .

[0117] 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 to the embodiments of the present application.

[0118] 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.

[0119] “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 .

[0120] It can be understood that there can be multiple first bottom plates 55, and multiple first bottom plates 55 are arranged on the first side plate 54 at intervals along the third direction Z, and are located between the first connecting pipe 40 and the bottom wall 121. In addition, there can be multiple first top plates 56, and multiple first top plates 56 are arranged on the first side plate 54 at intervals along the third direction Z, and are located between the first connecting pipe 40 and the top wall 111.

[0121] The design that one end of the first bottom plate 55 and the first top plate 56 protrude from the first connecting tube 40 along the second direction Y enables the first bottom plate 55 and the first top plate 56 to abut against the box body 10 earlier than the battery cell 20 when the battery cell 20 moves relative to the box body 10 in the second direction Y, thereby playing a buffering role for the battery cell 20. At the same time, the first top plate 56 and the first bottom plate 55 abut against the inner wall of the box body 10 on both sides of the first connecting tube 40 along the third direction Z, respectively, to prevent the box body 10 from squeezing the first connecting tube 40, which is beneficial to reducing the degree of damage to the battery 100 caused by external force collision.

[0122] According to some embodiments of the present application, optionally, please continue to refer to Fig.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 .

[0123] The third end 561 refers to an end of the first top plate 56 facing away from the first side plate 54 .

[0124] The fourth end 551 refers to an end of the first bottom plate 55 facing away from the first side plate 54 .

[0125] “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.

[0126] In this way, when the battery cell 20 moves relative to the box body 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 box body 10 facing the first connecting tube 40, thereby providing a buffer for the battery cell 20. At the same time, the reaction force on the first side plate 54 is more uniform, which is beneficial to improving the stability of the first thermal insulation member 50 during operation.

[0127] 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.

[0128] It can be understood that the first thermal insulation member 50 should be made of a material with a relatively low thermal conductivity.

[0129] Optionally, the first heat insulating member 50 may be made of a flexible material or a hard material. When a hard material is used, the first heat insulating member 50 has a certain strength, so that when the first heat insulating member 50 abuts against the box body 10 earlier than the battery cell 20 due to vibration, it can play a buffering role for the battery cell 20, which is beneficial to reducing the degree of damage caused by the collision to the battery 100. More specifically, the hard material can be a hard rubber that meets the requirements of not being damaged in structure at a high temperature above 200°C.

[0130] In addition, when the heat-resistant material is a flexible material, the first heat insulating member 50 can be deformed within a certain range, and then when the first heat insulating member 50 is installed on the battery cell 20, the first heat insulating member 50 can be appropriately bent, so that the installation of the first heat insulating member 50 is more convenient. More specifically, the flexible material can be mica paper or ceramic composite tape that can withstand temperatures above 200°C without structural damage.

[0131] It can be understood that "the first thermal insulation element 50 is made of mica paper, ceramic composite tape or hard rubber" may mean that at least a portion of at least one component constituting the first thermal insulation element 50 is made of mica paper, ceramic composite tape or hard rubber.

[0132] The first heat insulating member 50 is made of mica paper, ceramic composite tape or hard rubber, which is beneficial to reduce the probability of fluid leakage from the first connecting pipe 40 due to contact with the outer shell of the battery cell 20 .

[0133] According to some embodiments of the present application, optionally, referring to Fig.11 , and please refer to Fig.12 , Fig.11 and Fig.12 Schematic diagram of the exploded structure of different batteries 100 of some embodiments of the present application. The battery 100 also includes a second connecting tube 41 and a second heat insulating member 57. The second connecting tube 41 is located on the side of the battery cell 20 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 heat insulating member 57 is located between the second connecting tube 41 and the battery cell 20.

[0134] 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.

[0135] It can be understood that the second connecting tube 41 can be connected to the second end 32; or, the second connecting tube 41 can also be connected to a part of the side surface of the heat management component 30 close to the second end 32, which is not limited in the embodiments of the present application.

[0136] 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 to the embodiments of the present application.

[0137] 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 that at least a portion of the second thermal insulation member 57 is located between the second connecting tube 41 and the battery cell 20.

[0138] The second thermal insulation member 57 may be connected to the second connecting tube 41 by an adhesive; or, a clamping portion 51 adapted to the first connecting tube 40 may 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.

[0139] Optionally, the second thermal insulation member 57 may be disposed symmetrically with the first thermal insulation member 50 relative to the battery cell 20 .

[0140] Thereby, 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 before the second connecting tube 41 along the second direction Y, and the battery cell 20 can abut 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 outer 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 outer shell, thereby improving the reliability of the battery 100 during use.

[0141] According to some embodiments of the present application, referring to Figure 7 , and please refer to Figure 8 and Fig.11 The present application provides a battery 100, wherein the battery cell 20 includes a plurality of battery cells 20. A plurality of thermal management components 30 are arranged at intervals 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, and a battery cell 20 is arranged between two adjacent thermal management components 30. The battery cell 20 and the thermal management component 30 are accommodated in the box 10. The first connecting pipe 40 and the second connecting pipe 41 are respectively located on one side of the battery cell 20 in the second direction Y, the first connecting pipe 40 connects the first ends 31 of the two adjacent thermal management components 30, and the second connecting pipe 41 connects the second ends 32 of the two adjacent thermal management components 30. 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 in 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 arranged with the first thermal insulation member 50. Thus, 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] According to some embodiments of the present application, referring to Fig. 9 , and please refer to Fig.10 and Fig.12The present application provides a battery 100, wherein the battery cell 20 includes a plurality of battery cells 20. A plurality of thermal management components 30 are arranged at intervals 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, and a battery cell 20 is arranged between two adjacent thermal management components 30. The battery cell 20 and the thermal management component 30 are accommodated in the box 10. The first connecting tube 40 and the second connecting tube 41 are respectively located on one side of the battery cell 20 in the second direction Y, the first connecting tube 40 connects the first ends 31 of the two adjacent thermal management components 30, and the second connecting tube 41 connects the second ends 32 of the two adjacent thermal management components 30. The first thermal insulation member 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 exceeds 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 exceeds 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 heat insulating member 57 is located between the second connecting tube 41 and the battery cell 20. The second heat insulating member 57 is symmetrically arranged with the first heat insulating member 50. Thus, 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.

Claims

1. A battery, characterized in that: include: Multiple battery cells; A plurality of thermal management components, wherein the plurality of thermal management components are arranged at intervals along a first direction, each of the thermal management components 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; A first connecting tube, located at one side of the battery cell in the second direction, the first connecting tube connecting the first ends of two adjacent thermal management components; A first heat insulating member, along the second direction, at least a portion of the first heat insulating member is located between the first connecting tube and the battery cell.

2. The battery according to claim 1, characterized in that The battery further comprises a box, wherein the battery cell and the thermal management component are accommodated in the box; The first heat insulating member is connected to the battery cell and / or the box.

3. The battery according to claim 2, characterized in that Along the second direction, a first gap exists between the first heat insulating member and the first connecting pipe.

4. The battery according to claim 1, characterized in that The first thermal insulation member includes a first thermal insulation board and a second thermal insulation board; The second heat insulation board includes a first part and a second part. Along the second direction, the first heat insulation board is arranged between the first part and the battery cell, the first heat insulation board is connected to the battery cell, and the first part is connected to the first heat insulation board; Along the second direction, a second gap exists between the second portion and the battery cell, and a projection of the first connecting tube is located within the second portion.

5. The battery according to claim 1, characterized in that Along the second direction, one end of the first heat insulating member facing away from the battery cell exceeds the first connecting pipe.

6. The battery according to claim 5, characterized in that 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 thereof exceeds the first connecting pipe.

7. The battery according to claim 6, characterized in that The battery further comprises a box, wherein the battery cell and the thermal management component are accommodated in the box; The box body comprises a bottom wall and a top wall arranged opposite to each other along a third direction, the bottom wall is used to support the battery cell, 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.

8. The battery according to claim 6, characterized in that The first thermal insulation member further comprises 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 thereof exceeds the first connecting pipe; The first direction, the second direction and the third direction are perpendicular to each other.

9. The battery according to claim 8, characterized in that The first top plate has a third end facing away from the first side plate, the first bottom plate has a fourth end facing away from the first side plate, and the third end is flush with the fourth end.

10. The battery according to claim 1, characterized in that The first thermal insulation member is made of mica paper, ceramic composite tape or hard rubber.

11. The battery according to any one of claims 1 to 10, characterized in that The battery also includes: a second connecting tube, located at a side of the battery cell away from the first connecting tube in the second direction, the second connecting tube connecting the second ends of two adjacent thermal management components; A second heat insulating member, along the second direction, at least a portion of the second heat insulating member is located between the second connecting pipe and the battery cell.

12. An electrical device, characterized in that: The invention comprises a battery as claimed in any one of claims 1 to 11, wherein the battery is used to provide electrical energy.

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