Battery and electric equipment

Abstract

The embodiment of the utility model provides a battery and electric equipment. The battery comprises a battery monomer group, a plurality of heat management components, a first connecting pipe and a first protection mechanism, wherein the battery monomer group comprises a plurality of battery monomers; the plurality of heat management components are arranged at intervals along a first direction, and each heat management component 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 group in the second direction; the first connecting pipe is connected with the first ends of the two adjacent heat management components. The first protection mechanism is configured to shield the first connection tube to limit the discharge of the battery cells from contacting the first connection tube. Therefore, the probability that the first connecting pipe is melted by the emissions is reduced, the probability that fluid leaks from the first connecting pipe due to the fact that the battery monomers discharge the emissions is reduced, and the reliability of the battery in use is improved.

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 battery cell group, a plurality of thermal management components, a first connecting tube and a first protective mechanism, wherein the battery cell group comprises a plurality of battery cells. 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 group in the second direction, and the first connecting tube connects the first ends of two adjacent thermal management components. The first protective mechanism is configured to shield the first connecting tube to limit the discharge of the battery cell from contacting the first connecting tube.

[0007] In the technical solution of the embodiment of the present application, the first protective mechanism is configured to cover the first connecting tube, so that when the battery cell discharges emissions due to thermal runaway, the first protective mechanism can limit the emissions from contacting the first connecting tube, thereby reducing the probability of the emissions melting the first connecting tube, thereby reducing the probability of fluid leakage from the first connecting tube due to the discharge of emissions from the battery cell, thereby improving the reliability of the battery during use.

[0008] In some embodiments, the battery further comprises a housing, in which the battery cells and the thermal management components are accommodated. The housing comprises a bottom wall and a top wall arranged opposite to each other along a third direction, and a pressure relief mechanism is arranged at one end of the battery cell facing the top wall. Along the third direction, at least a portion of the first protective mechanism is located between the top wall and the first connecting tube, and the first direction, the second direction and the third direction are perpendicular to each other. The housing provides installation space for the battery cells and the thermal management components, thereby improving the integration of the battery. The pressure relief mechanism is arranged at one end of the battery cell facing the top wall, so that when the pressure relief mechanism is braked, the emissions enter the housing along the third direction, so that the emissions are located between the top wall and the battery cells, so that along the third direction, the portion of the first protective mechanism located between the top wall and the first connecting tube can limit the emissions from contacting the first connecting tube.

[0009] In some embodiments, along the third direction, the projection of the first protection mechanism does not overlap with the projection of the pressure relief mechanism. Such a design prevents the exhaust discharged from the pressure relief mechanism from directly contacting the first protection mechanism along the third direction, thereby limiting the exhaust from contacting the first connecting pipe through the gap between the first protection mechanism and the battery cell group in the third direction.

[0010] In some embodiments, the box has a first side wall and a second side wall arranged opposite to each other along the second direction. Along the second direction, the first connecting tube is located between the first side wall and the battery cell group. At least a portion of the first protective mechanism is located between the first side wall and the battery cell group. Such a design causes the box to vibrate under the action of an external force, so that when the battery cell group moves relative to the box in the second direction, the first protective mechanism will abut against the box earlier than the battery cell group, thereby buffering the battery cell group. This is beneficial to reducing the degree of damage to the battery caused by external force collision.

[0011] In some embodiments, the first protection mechanism includes a first protection cover, and the battery cell group has a first side surface facing the first connecting tube. The first protection cover and the first side surface together form a first accommodating cavity, and at least a portion of the first connecting tube is located in the first accommodating cavity. Disposing at least a portion of the first connecting tube in the first accommodating cavity formed by the first protection cover and the first side surface is beneficial for limiting the contact of emissions with the first connecting tube.

[0012] In some embodiments, the first protective cover is connected to the battery cell group and / or the box. In this way, the battery cell group and / or the box can provide support for the first protective cover. In particular, when the first protective cover is connected to the battery cell group and the box at the same time, the stability of a portion of the first accommodating cavity close to the box and a portion close to the battery cell group can be improved, which is beneficial to improving the stability of the first accommodating cavity.

[0013] In some embodiments, the first protective cover includes a first top plate and a first side plate, and one end of the first top plate is connected to the battery cell group. The other end of the first top plate is connected to the first side plate. The first top plate shields the first connecting tube along the third direction, and the first side plate shields the first connecting tube along the second direction. By setting the first top plate to shield the first connecting tube along the third direction, the discharge between the top wall and the first top plate along the third direction can be limited from contacting the first connecting tube. By setting the first side plate to shield the first connecting tube along the second direction, the discharge between the inner wall of the box body and the first side plate along the second direction can be limited from contacting the first connecting tube.

[0014] In some embodiments, one end of the first side plate away from the first top plate abuts against the bottom wall. By abutting one end of the first side plate away from the first top plate against the bottom wall, the bottom wall can provide support for the first side plate, which is beneficial to improving the stability of the first accommodating chamber. At the same time, the abutment of the first side plate against the bottom wall can limit the discharge from entering the first accommodating chamber through the gap between the first side plate and the bottom wall in the third direction, which is beneficial to reducing the occurrence of arcing between the box body and the battery cell group.

[0015] In some embodiments, the first protective cover further comprises a first bottom plate, one end of the first bottom plate is connected to the battery cell group, the other end of the first bottom plate is connected to the first side plate, and the first connecting pipe is located between the first top plate and the first bottom plate along the third direction. By arranging the first connecting pipe to be located between the first top plate and the first bottom plate along the third direction, it is possible to limit the emission from contacting the first connecting pipe along the third direction.

[0016] In some embodiments, the first bottom plate abuts against the bottom wall. By abutting the first bottom plate against the bottom wall, the bottom wall can provide support for the first bottom plate and the first side plate, which is beneficial to improving the stability of the first accommodating cavity. At the same time, the abutment of the first bottom plate against the bottom wall can limit the accumulation of emissions in the gap between the first bottom plate and the bottom wall in the third direction, which is beneficial to reducing the occurrence of arcing between the box body and the battery cell group.

[0017] In some embodiments, the first accommodating chamber is formed with first openings at both ends along the first direction, and the first protective mechanism further comprises a first sealing plate, which seals the first opening. Such a design can limit the emission from passing through the first opening on the first protective cover, entering the first accommodating chamber along the first direction, and contacting the first connecting pipe.

[0018] In some embodiments, the first protection mechanism is made of heat-resistant material. The heat-resistant material can reduce the probability of the emission melting through the first protection mechanism, and improve the reliability of the first protection mechanism shielding the first connecting pipe to a certain extent.

[0019] In some embodiments, the battery further includes a second connecting tube and a second protective mechanism. The second connecting tube is located on a side of the battery cell group away from the first connecting tube in the second direction. The second connecting tube connects the second ends of two adjacent thermal management components. The second protective mechanism is configured to shield the second connecting tube to limit the contact between the emissions of the battery cells and the second connecting tube. Such a design reduces the probability of the emissions melting the second connecting tube, thereby reducing the probability of fluid leakage from the second connecting tube due to the discharge of emissions from the battery cells, thereby improving the reliability of the battery during use.

[0020] In some embodiments, the second protection mechanism includes a second protection cover, and the battery cell group has a second side surface facing the second connecting tube. The second protection cover and the second side surface together form a second accommodating cavity, and at least a portion of the second connecting tube is located in the second accommodating cavity. Disposing at least a portion of the second connecting tube in the second accommodating cavity formed by the second protection cover and the second side surface is beneficial for limiting the contact between the emissions and the second connecting tube.

[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. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0024] Figure 2 A schematic diagram of the exploded structure of a first battery according to some embodiments of the present application;

[0025] Figure 3 A schematic diagram of the structure of a first battery in some embodiments of the present application;

[0026] Figure 4 A schematic diagram of the exploded structure of a second battery in some embodiments of the present application;

[0027] Figure 5 A schematic cross-sectional structure diagram of a second battery along a first direction X in some embodiments of the present application;

[0028] Figure 6 A schematic cross-sectional structure diagram of a third battery along a first direction X in some embodiments of the present application;

[0029] Figure 7 A schematic cross-sectional structure diagram of a fourth battery along a first direction X in some embodiments of the present application;

[0030] Figure 8 A schematic cross-sectional structure diagram of a fifth battery along a first direction X in some embodiments of the present application;

[0031] Fig. 9 A schematic cross-sectional structure diagram of a sixth battery along a first direction X in some embodiments of the present application;

[0032] Fig.10 A schematic structural diagram of a first protective cover in some embodiments of the present application;

[0033] Fig.11 A schematic diagram of an exploded structure of a second battery in some embodiments of the present application that does not include the first part;

[0034] Fig.12 This is a schematic structural diagram of another first protective cover in some embodiments of the present application;

[0035] Fig.13 A fourth battery according to some embodiments of the present application does not include a schematic diagram of an exploded structure of the first part.

[0036] Icon: 1000-Vehicle;

[0037] 100-battery; 200-controller; 300-motor;

[0038] 10-box body; 11-first part; 111-top wall; 12-second part; 121-bottom wall; 122-first side wall; 123-second side wall;

[0039] 20 - battery cell group; 21 - battery cell; 211 - pressure relief mechanism; 212 - first side surface; 213 - second side surface;

[0040] 30-thermal management component; 31-first end; 32-second end;

[0041] 40-first connecting pipe; 41-second connecting pipe;

[0042] 50 - first protective mechanism; 501 - first accommodating chamber; 502 - second accommodating chamber; 51 - first protective cover; 511 - first top plate; 512 - first side plate; 513 - first bottom plate; 52 - first sealing plate; 53 - second protective mechanism; 531 - second protective cover. DETAILED DESCRIPTION

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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).

[0049] 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.

[0050] 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.

[0051] 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.

[0052] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. The battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0053] 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.

[0054] The development of battery technology must take into account many design factors at the same time, such as energy density, cycle life, discharge capacity, charge and discharge rate and other performance parameters. In addition, the reliability of the battery during use must also be considered.

[0055] The emissions from the battery cells mentioned in the embodiments of the present application include, but are not limited to: electrolyte, dissolved or split positive and negative electrode plates, fragments of the isolation membrane, high-temperature and high-pressure gas produced by the reaction, flames, etc.

[0056] When short circuit, overcharge and other phenomena occur, thermal runaway may occur inside the battery cell, causing a sudden increase in pressure or temperature. In this case, the battery cell can release the internal pressure and temperature to the outside to prevent the battery cell from exploding or catching fire.

[0057] 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. Therefore, when a battery cell has thermal runaway, the emissions of the battery cell may fall on the first connecting tube through the rebound of the inner wall of the box, and melt through the first connecting tube, causing safety problems.

[0058] In view of this, an embodiment of the present application provides a battery and an electrical device, wherein the battery includes a battery cell group, a plurality of thermal management components, a first connecting tube and a first protection mechanism. The battery cell group includes a plurality of battery cells. 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 two adjacent thermal management components.

[0059] The first protection mechanism is configured to shield the first connecting tube to limit the discharge of the battery cell from contacting the first connecting tube. When the battery cell discharges discharge due to thermal runaway, the first protection mechanism can limit the discharge from contacting the first connecting tube, thereby reducing the probability of the discharge melting the first connecting tube, thereby reducing the probability of fluid leakage from the first connecting tube due to the discharge of the battery cell, thereby improving the reliability of the battery when in use.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] According to some embodiments of the present application, referring to Figure 2 , and please refer to Figure 3 , 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 the first battery 100 of some embodiments of the present application. Some embodiments of the present application provide a battery 100 including a battery cell group 20, a plurality of thermal management components 30, a first connecting tube 40 and a first protective mechanism 50, and the battery cell group 20 includes a plurality of battery cells 21. The plurality of thermal management components 30 are arranged at intervals along the first direction X, and each thermal management component 30 has a first end 31 and a second end 32 in the second direction Y. At least one battery cell 21 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 21 group in the second direction Y, and the first connecting tube 40 connects the first ends 31 of two adjacent thermal management components 30. The first protective mechanism 50 is configured to shield the first connecting tube 40 to limit the discharge of the battery cell 21 from contacting the first connecting tube 40.

[0065] 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 .

[0066] In order to meet different power usage requirements, the battery 100 of some embodiments of the present application may include a battery cell group 20, wherein the battery cell group 20 may include a plurality of battery cells 21, and the plurality of battery cells 21 may be connected in series, in parallel, or in mixed connection, where mixed connection refers to a mixture of series connection and parallel connection. The battery 100 may also include a plurality of battery cell groups 20. For example, a plurality of battery cells 21 may first be connected in series, in parallel, or in mixed connection to form a battery cell group 20, and a plurality of battery cell groups 20 may then be connected in series, in parallel, or in mixed connection to form a battery 100. In other words, a plurality of battery cells 21 may directly form a battery 100, or may first form a battery cell group 20, and the battery cell group 20 may then form a battery 100.

[0067] It can be understood that along the first direction X, the gap between two adjacent battery cells 21 is filled with glue to limit the discharge from passing through the gap between two adjacent battery cells 21 in the first direction X and abutting against the first connecting pipe 40 .

[0068] The thermal management component 30 is used to adjust the temperature of the battery cells 21. 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 21. 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.

[0069] Adjusting the temperature refers to heating or cooling multiple battery cells 21. In the case of cooling or lowering the temperature of the battery cells 21, 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 21. 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 the multiple battery cells 21, 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.

[0070] It can be understood that the thermal management component 30 can be fixedly connected to the battery cell 21 by an adhesive; or, the thermal management component 30 can also be clamped and fixed by two adjacent battery cells 21, which is not limited in the embodiments of the present application.

[0071] 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.

[0072] 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.

[0073] The first guard mechanism 50 being configured to shield the first connection pipe 40 means that at least a portion of the first guard mechanism 50 is located between the location where the battery cells 21 discharge exhaust and the first connection pipe 40 .

[0074] Therefore, when the battery cell 21 discharges emissions due to thermal runaway, the first protection mechanism 50 can limit the emissions from contacting the first connecting tube 40, thereby reducing the probability of the emissions melting the first connecting tube 40, thereby reducing the probability of fluid leakage from the first connecting tube 40 due to the discharge of emissions from the battery cell 21, thereby improving the reliability of the battery 100 during use.

[0075] According to some embodiments of the present application, optionally, referring to Figure 4 , and please refer to Figure 5 , Figure 4 Schematic diagram of the exploded structure of a second battery 100 according to some embodiments of the present application. Figure 5 Schematic diagram of the cross-sectional structure of the second type of battery 100 along the first direction X in some embodiments of the present application. The battery 100 may also include a housing 10, in which a battery cell 21 and a thermal management component 30 are accommodated. The housing 10 includes a bottom wall 121 and a top wall 111 arranged opposite to each other along a third direction Z, and a pressure relief mechanism 211 is provided at one end of the battery cell 21 facing the top wall 111. Along the third direction Z, at least a portion of the first protection mechanism 50 is located between the top wall 111 and the first connecting pipe 40.

[0076] The box body 10 is a shell for providing a stable and sealed working environment for the battery cells 21 .

[0077] Understandable, see Figure 4 The box body 10 may include two parts, which are respectively referred to as the first part 11 and the second part 12, and the first part 11 and the second part 12 are buckled together along the third direction Z. The shapes of the first part 11 and the second part 12 may be determined according to the shapes of the plurality of battery cells 20, and the first part 11 and the second part 12 may each have an opening. For example, the first part 11 and the second part 12 may both be hollow cuboids and each has only one open face, the opening of the first part 11 and the opening of the second part 12 are arranged opposite to each other, and the first part 11 and the second part 12 are buckled together to form the box body 10 with a closed chamber. After the battery cell 21 and the thermal management component 30 are combined, they are placed in the box body 10 formed by the buckling of the first part 11 and the second part 12.

[0078] Optionally, the first part 11 and the second part 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 21 can have a higher structural strength, which is beneficial to reducing the degree of damage to the battery 100 caused by external force collision.

[0079] 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 place the battery cell 21 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 21 and / or the thermal management component 30 may be disposed on the bottom wall 121.

[0080] It can be understood that the bottom wall 121 can be located on the second portion 12 , and when the bottom wall 121 is located on the second portion 12 , the top wall 111 can be located on the first portion 11 .

[0081] For the battery cell 21, the main safety hazard comes from the charging and discharging process, and there is also a suitable ambient temperature design. In order to effectively avoid unnecessary losses, there are generally at least three protection measures for the battery cell 21. Specifically, the protection measures at least include switch elements, selection of appropriate isolation film materials, and pressure relief mechanism 211.

[0082] The pressure relief mechanism 211 refers to an element or component that is actuated to release the internal pressure or temperature when the internal pressure or temperature or other conditions of the battery cell 21 reaches a predetermined threshold. The threshold design varies according to different design requirements. The threshold may depend on one or more materials of the positive electrode plate, negative electrode plate, electrolyte and isolation membrane in the battery cell 21. The pressure relief mechanism 211 can take the form of an explosion-proof valve, an air valve, a pressure relief valve or a safety valve, and can specifically adopt a pressure-sensitive or temperature-sensitive element or structure, that is, when the internal pressure or temperature or other conditions of the battery cell 21 reaches a predetermined threshold, the pressure relief mechanism 211 performs an action or a weak structure provided in the pressure relief mechanism 211 is destroyed, thereby forming an opening or channel for the internal pressure or temperature to be released.

[0083] The "actuation" mentioned in the embodiments of the present application refers to the pressure relief mechanism 211 being in action or being activated to a certain state, so that the internal pressure and temperature of the battery cell 21 can be released, so that the internal pressure and temperature of the battery cell 21 can be released. The action produced by the pressure relief mechanism 211 may include but is not limited to: at least a part of the pressure relief mechanism 211 is broken, shattered, melted, torn or opened, and the like. When the pressure relief mechanism 211 is actuated, the high-temperature and high-pressure substances inside the battery cell 21 will be discharged outward from the actuated part as emissions. In this way, the battery cell 21 can be depressurized and cooled under controllable pressure or temperature, thereby avoiding potential more serious accidents.

[0084] It can be understood that the pressure relief mechanism 211 is arranged at one end of the battery cell 21 facing the top wall 111, so that when the pressure relief mechanism 211 is braked, the emissions enter the box body 10 along the third direction Z, so that the emissions are located between the top wall 111 and the battery cell 21, and further along the third direction Z, the part of the first protective mechanism 50 located between the top wall 111 and the first connecting tube 40 can limit the emissions from contacting the first connecting tube 40.

[0085] By arranging at least a portion of the first protection mechanism 50 between the top wall 111 and the first connecting pipe 40 in the third direction Z, the discharge discharged from the pressure relief mechanism 211 is limited from contacting the first connecting pipe 40, which is beneficial to improving the reliability of the battery 100 during use.

[0086] According to some embodiments of the present application, optionally, please continue to refer to Figure 5 Along the third direction Z, the projection of the first protection mechanism 50 does not overlap with the projection of the pressure relief mechanism 211 .

[0087] Along the third direction Z, the projection of the first protection mechanism 50 refers to the projection of the first protection mechanism 50 on any plane perpendicular to the third direction Z.

[0088] Along the third direction Z, the projection of the pressure relief mechanism 211 refers to the projection of the pressure relief mechanism 211 on any plane perpendicular to the third direction Z.

[0089] It can be understood that when the projection of the first protective mechanism 50 does not overlap with the projection of the pressure relief mechanism 211 along the third direction Z, the emissions discharged from the pressure relief mechanism 211 will not contact the first protective mechanism 50 when the emissions move along the third direction Z toward the top wall 111 of the box, thereby reducing the probability of the emissions passing through the gap between the first protective mechanism 50 and the battery cell 21 in the third direction Z and contacting the first connecting tube 40.

[0090] According to some embodiments of the present application, optionally, please continue to refer to Figure 5The box body 10 has a first side wall 122 and a second side wall 123 disposed opposite to each other along the second direction Y. The first connecting pipe 40 is located between the first side wall 122 and the battery cell group 20 along the second direction Y. At least a portion of the first protection mechanism 50 is located between the first side wall 122 and the battery cell group 20.

[0091] The first side wall 122 and the second side wall 123 are two inner walls distributed along the second direction Y in the box body 10 and perpendicular to the second direction Y. The first side wall 122 faces the first connecting pipe 40 .

[0092] It is understandable that, since at least a portion of the first protection mechanism 50 is located between the first side wall 122 and the battery cell group 20, when the box body 10 is vibrated by an external force, causing the battery cell group 20 to move relative to the box body 10 in the second direction Y, the first protection mechanism 50 will abut against the box body 10 earlier than the battery cell group 20, thereby playing a buffering role for the battery cell group 20. This is beneficial to reducing the degree of damage to the battery 100 caused by the collision.

[0093] According to some embodiments of the present application, optionally, please continue to refer to Figure 5 , and further reference Figures 6 to 9 . Figures 6 to 9 Several possible cross-sectional structural schematic diagrams of the battery 100 of the embodiment of the present application along the first direction X are respectively shown. The first protection mechanism 50 includes a first protection cover 51, and the battery cell group 20 has a first side surface 212 facing the first connecting tube 40. The first protection cover 51 and the first side surface 212 together form a first accommodating cavity 501, and at least a portion of the first connecting tube 40 is located in the first accommodating cavity 501.

[0094] The first protective cover 51 refers to a component that forms the first accommodating cavity 501 together with the first side surface 212 .

[0095] The first side surface 212 refers to a surface of the battery cell 21 that faces the first connecting tube 40 and is perpendicular to the second direction Y.

[0096] The first accommodating cavity 501 is used to accommodate at least a portion of the first connecting pipe 40, wherein Figure 5 , the first accommodating cavity 501 may be non-sealed. Figures 6 to 9 , the first accommodating cavity 501 may also be sealed.

[0097] Optionally, refer to Figure 8 and Fig. 9 The first accommodating cavity 501 may be formed by the first protective cover 51 and the first side surface (not shown in the figure). Figure 5 and Figure 6The first accommodating cavity 501 may also be formed by the first protective cover 51, the first side surface 212 and the bottom wall 121. Figure 7 The first accommodating cavity 501 may also be formed by the first protective cover 51, the first side surface 212, the first side wall 122 and the bottom wall 121. This embodiment is not limited to this.

[0098] It can be understood that by arranging at least a portion of the first connecting pipe 40 in the first accommodating chamber 501, when the pressure relief mechanism 211 discharges emissions, the emissions rebounding through the top wall 111 will first contact the inner wall of the box body 10 and / or the outer side of the first protective cover 51, thereby limiting the emissions from contacting the first connecting pipe 40.

[0099] According to some embodiments of the present application, optionally, please continue to refer to Figure 5 , and further reference Figures 6 to 9 The first protective cover 51 is connected to the battery cell group 20 and / or the box body 10 .

[0100] It is understandable that the first protective cover 51 can be fixedly connected to the battery cell group 20 and / or the box body 10 by an adhesive; or, the first protective cover 51 can be clamped and fixed by the first side surface 212 and the first side wall 122, which is not limited to the embodiments of the present application.

[0101] Optionally, when the first protective cover 51 is connected to the battery cell group 20, refer to Figures 5 to 8 , the first protective cover 51 may be connected to the surface of the battery cell group 20 facing the top wall 111. Fig. 9 The first protective cover 51 may be connected to the first side surface 212 of the battery cell group 20 .

[0102] Optionally, the gap between the first protective cover 51 and the battery cell group 20 may be filled with glue to prevent the emissions from passing through the gap between the first protective cover 51 and the battery cell group 20 and contacting the first connecting pipe 40 .

[0103] It is understandable that the portion where the first protective cover 51 is connected to the battery cell group 20 and / or the box body 10 can provide support for the first protective cover 51 around the connection portion, thereby providing support for the first accommodating cavity 501. When the first protective cover 51 is connected to the battery cell group 20 and the box body 10 at the same time, the stability of the first accommodating cavity 501 close to the box body 10 and the first accommodating cavity 501 close to the battery cell group 20 can be improved, which is beneficial to improving the stability of the first accommodating cavity 501.

[0104] In addition, when the first protective cover 51 is connected to only one of the battery cell group 20 and the case 10, the first protective cover 51 may not be adapted to the size of the gap between the battery cell group 20 and the case 10, so that the first protective cover 51 can be applied to different combinations of battery cell groups 20 and the case 10, which is beneficial to improving the scope of use of the first protective cover 51.

[0105] According to some embodiments of the present application, optionally, please continue to refer to Figure 5 , and further reference Figure 6 , Fig.10 and Fig.11 , Fig.10 This is a schematic structural diagram of a first protective cover 51 in some embodiments of the present application. Fig.11 The second battery 100 of some embodiments of the present application does not include a schematic diagram of an exploded structure of the first part 11. The first protective cover 51 includes a first top plate 511 and a first side plate 512, and one end of the first top plate 511 is connected to the battery cell group 20. The other end of the first top plate 511 is connected to the first side plate 512. The first top plate 511 shields the first connecting tube 40 along the third direction Z, and the first side plate 512 shields the first connecting tube 40 along the second direction Y.

[0106] The first top plate 511 is the portion connecting the first protective cover 51 and the battery cell group 20 , and is used to block between the first connecting pipe 40 and the top wall 111 along the third direction Z to limit the discharge between the top wall 111 and the first top plate 511 from contacting the first connecting pipe 40 along the third direction Z.

[0107] The connection method between the first top plate 511 and the battery cell group 20 is the same as the connection method between the first protective cover 51 and the battery cell group 20 , so it will not be described again.

[0108] The first side plate 512 is a portion of the first protective cover 51 extending along the third direction Z. The first side plate 512 is used to block between the first connecting pipe 40 and the first side wall 122 along the second direction Y to limit the discharge between the first side wall 122 and the first side plate 512 from contacting the first connecting pipe 40 along the second direction Y.

[0109] It can be understood that the first side plate 512 and the first top plate 511 can be connected and fixed by an adhesive; or, the first side plate 512 and the first top plate 511 can also be integrally formed, which is not limited in this embodiment.

[0110] By providing the first top plate 511 and the first side plate 512 , the emissions discharged from the pressure relief mechanism 211 will not contact the first connecting pipe 40 after rebounding once through the top wall 111 and / or the bottom wall 121 , thereby limiting the contact between the emissions with higher temperatures and the first connecting pipe 40 .

[0111] According to some embodiments of the present application, optionally, please continue to refer to Figure 6 One end of the first side plate 512 away from the first top plate 511 abuts against the bottom wall 121 .

[0112] It can be understood that the end of the first side plate 512 away from the first top plate 511 can be in contact with the bottom wall 121; or, it can also be fixedly connected to the bottom wall 121 by an adhesive, which is not limited in this embodiment.

[0113] It can be understood that by abutting one end of the first side plate 512 away from the first top plate 511 against the bottom wall 121 , the bottom wall 121 can provide a supporting force for the first side plate 512 , which is beneficial to improving the stability of the first accommodating cavity 501 .

[0114] At the same time, the first side plate 512 abuts against the bottom wall 121, which can limit the emissions from entering the first accommodating chamber 501 through the gap between the first side plate 512 and the bottom wall 121 in the third direction Z. This further limits the emissions from accumulating between the first side plate 512 and the bottom wall 121. This further reduces the arcing phenomenon caused by the emissions between the first side wall 122 and the battery cell group 20, which is beneficial to reducing fires caused by the arcing phenomenon.

[0115] According to some embodiments of the present application, optionally, please continue to refer to Figure 8 , and please refer to Fig. 9 , Fig.12 and Fig.13 , Fig.12 This is a schematic diagram of another structure of the first protective cover 51 in some embodiments of the present application. Fig.13 The fourth battery 100 of some embodiments of the present application does not include a schematic diagram of an exploded structure of the first part 11. The first protective cover 51 also includes a first bottom plate 513, one end of the first bottom plate 513 is connected to the battery cell group 20, and the other end of the first bottom plate 513 is connected to the first side plate 512. Along the third direction Z, the first connecting pipe 40 is located between the first top plate 511 and the first bottom plate 513.

[0116] The first bottom plate 513 is the portion of the first protective cover 51 located between the bottom wall 121 and the first connecting pipe 40 . The first bottom plate 513 is used to block between the first connecting pipe 40 and the bottom wall 121 along the second direction Y to limit the discharge from contacting the first connecting pipe 40 after rebounding from the bottom wall 121 .

[0117] It can be understood that the first side panel 512 and the first bottom panel 513 can be connected and fixed by an adhesive; or, the first side panel 512, the first top panel 511 and the first bottom panel 513 can also be fixed to each other by integral molding, which is not limited in this embodiment.

[0118] It can be understood that the end of the first bottom plate 513 away from the first side plate 512 can be abutted against the first side surface 212; or, the end of the first bottom plate 513 away from the first side plate 512 can also be fixedly connected to the first side surface 212 by an adhesive, which is not limited in this embodiment.

[0119] It can be understood that the first bottom plate 513 abuts against the first side surface 212 , so that the battery cell group 20 can provide support force for the first protective cover 51 , which is beneficial to improving the stability of the first accommodating cavity 501 .

[0120] At the same time, the abutment between the first bottom plate 513 and the first side surface 212 can limit the emissions from entering the first accommodating chamber 501 through the gap between the first bottom plate 513 and the first side surface 212 , which is beneficial to limiting the accumulation of emissions in the first accommodating chamber 501 .

[0121] By disposing the first connection pipe 40 between the first top plate 511 and the first bottom plate 513 along the third direction Z, the discharge material may be restricted from contacting the first connection pipe 40 along the third direction Z.

[0122] According to some embodiments of the present application, optionally, please continue to refer to Figure 8 , the first bottom plate 513 abuts against the bottom wall 121 .

[0123] It can be understood that the first bottom plate 513 and the bottom wall 121 can be in contact with each other; or, the first bottom plate 513 and the bottom wall 121 can be connected and fixed by an adhesive, which is not limited in this embodiment.

[0124] By abutting the first bottom plate 513 against the bottom wall 121 , the bottom wall 121 can provide support force for the first bottom plate 513 and the first side plate 512 , which is beneficial to improving the stability of the first accommodating cavity 501 .

[0125] At the same time, the first bottom plate 513 abuts against the bottom wall 121, which can limit the accumulation of emissions in the gap between the first bottom plate 513 and the bottom wall 121, thereby reducing the arcing phenomenon caused by the emissions between the first side wall 122 and the battery cell group 20, which is beneficial to reducing fires caused by the arcing phenomenon.

[0126] According to some embodiments of the present application, optionally, please continue to refer to Figure 8 , and continue to refer to Fig.13 The first accommodating cavity 501 is formed with first openings (not shown in the figure) at both ends along the first direction X. The first protective mechanism 50 also includes a first sealing plate 52, which closes the first opening (not shown in the figure).

[0127] The first sealing plate 52 is a component that is buckled together with the first protective cover 51 along the first direction X to close the first opening (not shown in the figure), and forms the first accommodating cavity 501 together with the first protective cover 51 and the first side surface 212 .

[0128] The shape of the first sealing plate 52 can be determined according to the shape of the first opening (not shown in the figure), and the first sealing plate 52 can also have an opening. For example, the first sealing plate 52 is a hollow structure, and one surface of the first sealing plate 52 has an opening, the opening and the first opening (not shown in the figure) are arranged opposite to each other, and the first sealing plate 52 and the first protective cover 51 are buckled with each other, and together with the first side surface 212, form the first accommodating cavity 501.

[0129] It can be understood that the first sealing plate 52 can be fixedly connected to the first protective cover 51 by using an adhesive; or the first sealing plate 52 can also be integrally formed with the first protective cover 51, which is not limited in this embodiment.

[0130] By providing the first sealing plate 52 , it is possible to limit the emission from entering the first accommodating chamber 501 along the first direction X through the first opening (not shown) on the first protective cover 51 and contacting the first connecting pipe 40 .

[0131] According to some embodiments of the present application, optionally, the first protection mechanism 50 is made of a heat-resistant material.

[0132] Heat-resistant materials refer to materials that can withstand temperatures above 600°C without their structure being damaged.

[0133] It is understandable that the heat-resistant material can be a flexible material or a hard material. When the heat-resistant material is a hard material, the first protection mechanism 50 has a certain strength, so that when the first protection mechanism 50 abuts against the box body 10 earlier than the battery cell group 20 due to vibration, it can play a buffering role on the battery cell group 20, which is beneficial to reduce the degree of damage caused by the collision to the battery 100. More specifically, the hard material can be a hard foam that can withstand a high temperature of more than 600°C without structural damage.

[0134] In addition, when the heat-resistant material is a flexible material, the first protective mechanism 50 can be deformed within a certain range, and then when the first protective mechanism 50 is installed on the battery cell group 20, the first protective mechanism 50 can be appropriately bent, so that the installation of the first protective mechanism 50 is more convenient. More specifically, the flexible material can be mica paper or ceramic composite tape that can withstand temperatures above 600°C without structural damage.

[0135] It can be understood that the first protection mechanism 50 being made of heat-resistant material may mean that at least a portion of at least one component constituting the first protection mechanism 50 is made of heat-resistant material.

[0136] The heat-resistant material can reduce the probability of the emission melting through the first protection mechanism 50, and improve the reliability of the first protection mechanism 50 shielding the first connecting pipe 40 to a certain extent.

[0137] According to some embodiments of the present application, optionally, please continue to refer to Figure 8 , and continue to refer to Fig.13 The battery 100 further includes a second connecting pipe 41 and a second protection mechanism 53. The second connecting pipe 41 is located on a side of the battery cell group 20 away from the first connecting pipe 40 in the second direction Y. The second connecting pipe 41 connects the second ends 32 of two adjacent thermal management components 30. The second protection mechanism 53 is configured to shield the second connecting pipe 41 to limit the discharge of the battery cell 21 from contacting the second connecting pipe 41.

[0138] 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 first connecting tube 40.

[0139] 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.

[0140] The second guarding mechanism 53 being configured to shield the second connecting pipe 41 means that at least a portion of the second guarding mechanism 53 is located between the location where the battery cells 21 discharge exhaust and the second connecting pipe 41 .

[0141] Therefore, when the battery cell 21 discharges emissions due to thermal runaway, the second protection mechanism 53 can limit the emissions from contacting the second connecting tube 41, thereby reducing the probability of the emissions melting the second connecting tube 41, thereby reducing the probability of fluid leakage from the second connecting tube 41 due to the discharge of emissions from the battery cell 21, thereby improving the reliability of the battery 100 during use.

[0142] According to some embodiments of the present application, optionally, please continue to refer to Figure 8 , and continue to refer to Fig.13 The second protection mechanism 53 includes a second protection cover 531, and the battery cell group 20 has a second side surface 213 facing the second connecting tube 41. The second protection cover 531 and the second side surface 213 together form a second accommodating cavity 502, and at least a portion of the second connecting tube 41 is located in the second accommodating cavity 502.

[0143] The second protective cover 531 refers to a component that forms the second accommodating cavity 502 together with the second side surface 213 .

[0144] The second side surface 213 refers to a surface of the battery cell 21 facing the second connecting tube 41 and perpendicular to the second direction Y.

[0145] The second accommodating chamber 502 is used to accommodate at least a portion of the second connecting pipe 41 , wherein the first accommodating chamber 501 may be non-sealed.

[0146] It can be understood that by arranging at least a portion of the second connecting pipe 41 in the second accommodating chamber 502, when the pressure relief mechanism 211 discharges emissions, the emissions rebounding through the top wall 111 will first contact the inner wall of the box body 10 and / or the outer side of the second protective cover 531, thereby limiting the emissions from contacting the second connecting pipe 41.

[0147] According to some embodiments of the present application, referring to Figure 5 and Fig.11 The present application provides a battery 100, wherein a battery cell group 20 includes a plurality of battery cells 21. 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 21 is arranged between two adjacent thermal management components 30. The battery cell group 20 and the thermal management component 30 are accommodated in the box body 10. The first connecting tube 40 is located between the first side wall 122 and the first side surface 212, and the first connecting tube 40 connects the first ends 31 of two adjacent thermal management components 30. The second connecting tube 41 is located on a side of the battery cell group 20 away from the first connecting tube 40 in the second direction Y, and the second connecting tube 41 connects the second ends 32 of two adjacent thermal management components 30. The first protective mechanism 50 includes a first protective cover 51 and a first sealing plate 52. The first protective cover 51 includes a first top plate 511 and a first side plate 512. One end of the first top plate 511 is connected to the side of the battery cell group 20 facing the top wall 111, and the other end of the first top plate 511 is connected to the first side plate 512. The first top plate 511 blocks the first connecting pipe 40 along the third direction Z, and the first side plate 512 blocks the first connecting pipe 40 along the second direction Y. Along the first direction X, the edge of the first top plate 511, the edge of the first side plate 512, the bottom wall 121 and the first side 212 form a first opening (not shown in the figure), and the first sealing plate 52 is buckled on the first opening (not shown in the figure) and closes the first opening (not shown in the figure). The second protective mechanism 53 is sleeved outside the second connecting pipe 41 and is symmetrically arranged with the first protective mechanism 50. Thereby, the discharge discharged from the pressure relief mechanism 211 is restricted from contacting the first connecting pipe 40 and the second connecting pipe 41.

[0148] According to some embodiments of the present application, referring to Figure 8 and Fig.13The present application provides a battery 100, wherein a battery cell group 20 includes a plurality of battery cells 21. 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 21 is arranged between two adjacent thermal management components 30. The battery cell group 20 and the thermal management component 30 are accommodated in the box body 10. The first connecting tube 40 is located between the first side wall 122 and the first side surface 212, and the first connecting tube 40 connects the first ends 31 of two adjacent thermal management components 30. The second connecting tube 41 is located on a side of the battery cell group 20 away from the first connecting tube 40 in the second direction Y, and the second connecting tube 41 connects the second ends 32 of two adjacent thermal management components 30. The first protective mechanism 50 includes a first protective cover 51 and a first sealing plate 52. The first protective cover 51 includes a first top plate 511, a first side plate 512 and a first bottom plate 513. One end of the first top plate 511 is connected to the side of the battery cell group 20 facing the top wall 111, the other end of the first top plate 511 is connected to the first side plate 512, one end of the first bottom plate 513 is connected to the battery cell group 20, and the other end of the first bottom plate 513 is connected to the first side plate 512. Along the third direction Z, the first connecting tube 40 is located between the first top plate 511 and the first bottom plate 513. The first bottom plate 513 abuts against the bottom wall 121. Along the first direction X, the edge of the first top plate 511, the edge of the first side plate 512, the edge of the first bottom plate 513 and the first side 212 form a first opening (not shown in the figure), and the first sealing plate 52 is buckled on the first opening (not shown in the figure) and closes the first opening (not shown in the figure). The second protective mechanism 53 is sleeved outside the second connecting tube 41 and is symmetrically arranged with the first protective mechanism 50. This restricts the discharge discharged from the pressure relief mechanism 211 from contacting the first connection pipe 40 and the second connection pipe 41 .

[0149] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0150] The above embodiments are only used to illustrate the technical solution of the present application and are not used to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery, characterized in that: include: A battery cell group, comprising a plurality of 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 group in the second direction, the first connecting tube connecting the first ends of two adjacent thermal management components; The first protection mechanism is configured to shield the first connecting pipe to limit the discharge of the battery cell from contacting the first connecting pipe.

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 box body comprises a bottom wall and a top wall arranged opposite to each other along a third direction, and a pressure relief mechanism is arranged at one end of the battery cell facing the top wall; Along the third direction, at least a portion of the first protection mechanism is located between the top wall and the first connecting pipe, and the first direction, the second direction and the third direction are perpendicular to each other.

3. The battery according to claim 2, characterized in that Along the third direction, a projection of the first protection mechanism does not overlap with a projection of the pressure relief mechanism.

4. The battery according to claim 2, characterized in that The box body has a first side wall and a second side wall arranged opposite to each other along the second direction; Along the second direction, the first connecting pipe is located between the first side wall and the battery cell group, and at least a portion of the first protection mechanism is located between the first side wall and the battery cell group.

5. The battery according to claim 2, characterized in that The first protection mechanism includes a first protection cover, the battery cell group has a first side surface facing the first connecting tube, the first protection cover and the first side surface together form a first accommodating cavity, and at least a portion of the first connecting tube is located in the first accommodating cavity.

6. The battery according to claim 5, characterized in that The first protective cover is connected to the battery cell group and / or the box.

7. The battery according to claim 5, characterized in that The first protective cover includes a first top plate and a first side plate, one end of the first top plate is connected to the battery cell group, the other end of the first top plate is connected to the first side plate, the first top plate shields the first connecting tube along the third direction, and the first side plate shields the first connecting tube along the second direction.

8. The battery according to claim 7, characterized in that One end of the first side plate away from the first top plate abuts against the bottom wall.

9. The battery according to claim 7, characterized in that The first protective cover also includes a first bottom plate, one end of which is connected to the battery cell group, and the other end of which is connected to the first side plate. Along the third direction, the first connecting pipe is located between the first top plate and the first bottom plate.

10. The battery according to claim 9, characterized in that The first bottom plate abuts against the bottom wall.

11. The battery according to claim 5, characterized in that The first accommodating cavity is formed with first openings at two ends along the first direction, and the first protection mechanism further includes a first sealing plate, and the first sealing plate closes the first opening.

12. The battery according to claim 1, characterized in that The first protection mechanism is made of heat-resistant material.

13. The battery according to any one of claims 2 to 12, characterized in that The battery also includes: a second connecting tube, located at a side of the battery cell group away from the first connecting tube in the second direction, the second connecting tube connecting the second ends of two adjacent thermal management components; The second protection mechanism is configured to shield the second connecting pipe to limit the discharge of the battery cell from contacting the second connecting pipe.

14. The battery according to claim 13, characterized in that The second protection mechanism includes a second protection cover, the battery cell group has a second side surface facing the second connecting tube, the second protection cover and the second side surface together form a second accommodating cavity, and at least a portion of the second connecting tube is located in the second accommodating cavity.

15. An electrical equipment, characterized in that: The invention comprises a battery as claimed in any one of claims 1 to 14, wherein the battery is used to provide electrical energy.

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