Discharging assembly, box body, battery and electric device

Abstract

The utility model discloses a discharge assembly, a box body, a battery and an electric device. The discharge assembly comprises a discharge part and a treatment part, the discharge part defines a discharge path, the discharge path is used for receiving discharge discharged by a battery cell, the treatment part is used for treating particles in the discharge flowing through the discharge path, and the treatment part is used for treating the particles in the discharge flowing through the discharge path. The moving range of the particulate matter is at least limited, and / or the particulate matter is at least insulated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a discharge assembly, a box body, a battery and a power consumption device. BACKGROUND

[0002] The application scenarios of batteries in the related art are wide, for example, the batteries can be used in power consumption devices such as vehicles, mobile phones, portable devices, notebook computers, ships, spacecraft, electric toys and electric tools. However, the batteries have the risk of thermal runaway. Once thermal runaway occurs, the discharge of the battery cell can easily cause secondary injury, aggravate the harm and influence range of thermal runaway. CONTENT OF THE INVENTION

[0003] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a discharge assembly, a box body, a battery and a power consumption device, which can reduce the harm and influence range of thermal runaway.

[0004] According to the discharge assembly of the first aspect of the present application, the discharge assembly comprises a discharge member and a treatment member. The discharge member defines a discharge path for receiving discharge of battery monomers. The treatment member is used to treat particulate matter in the discharge of the battery monomers flowing through the discharge path, at least for limiting the movement range of the particulate matter and / or at least for insulating the particulate matter. According to the discharge assembly of the present application, the treatment member is arranged to treat the particulate matter in the discharge of the battery monomers, which can better reduce the harm and influence range of thermal runaway.

[0005] In some embodiments, the discharge path comprises a discharge cavity formed in the discharge member and a plurality of inlet areas formed on the discharge member. The discharge cavity is adapted to receive discharge from a plurality of battery monomers through a plurality of inlet areas. The treatment member comprises a first treatment member arranged at the inlet area for treating particulate matter flowing through the inlet area.

[0006] In some embodiments, the first treatment member is fixedly arranged.

[0007] In some embodiments, the number of the first treatment members is the same as and one-to-one corresponds to the number of the inlet areas.

[0008] In some embodiments, the number of the first treatment members is less than the number of the inlet areas, so that at least two adjacent inlet areas are arranged corresponding to the same first treatment member.

[0009] In some embodiments, the discharge member is a long strip structure, and the inlet regions are provided on at least one side in the width direction of the discharge member, wherein at least two of the inlet regions arranged adjacently in the length direction of the discharge member are arranged correspondingly to the same first treatment member, and / or at least two of the inlet regions arranged adjacently in the height direction of the discharge member are arranged correspondingly to the same first treatment member.

[0010] In some embodiments, the inlet regions are provided on both sides in the width direction of the discharge member, and one first treatment member is provided on each side in the width direction of the discharge member, and the first treatment member on each side covers all the inlet regions on the corresponding side.

[0011] In some embodiments, all the inlet regions on the same side wall surface of the discharge member are arranged correspondingly to the same first treatment member.

[0012] In some embodiments, the arrangement position of the first treatment member is adjustable.

[0013] In some embodiments, the first treatment member is arranged inside and / or outside the discharge member.

[0014] In some embodiments, the discharge path includes a discharge cavity formed inside the discharge member and an outlet region formed on the discharge member, the discharge in the discharge cavity is adapted to be discharged to the outside of the discharge member through the outlet region, and the treatment member includes a second treatment member arranged at the outlet region for treating particulate matter flowing through the outlet region.

[0015] In some embodiments, the discharge member is a long strip structure, and at least one end of the two ends in the length direction of the discharge member is open as the outlet region, and the second treatment member covers the outlet region.

[0016] In some embodiments, the arrangement position of the second treatment member is adjustable, and the second treatment member is movable between a position covering the outlet region and a position avoiding the outlet region.

[0017] In some embodiments, the second treatment member includes a plurality of treatment units arranged in sequence in the discharge direction.

[0018] In some embodiments, the second treatment member is arranged inside and / or outside the discharge member.

[0019] In some embodiments, the treatment member includes a particle interception member for preventing particulate matter from passing through the particle interception member.

[0020] In some embodiments, the particle interception member includes a filter screen and / or an adsorption screen.

[0021] In some embodiments, the processing member comprises a releasing member for releasing a coating member, the coating member being used for coating the particulate matter.

[0022] In some embodiments, the coating member comprises an insulating coating and / or a flexible mesh.

[0023] In some embodiments, the discharge path comprises a discharge cavity formed inside the discharge member, the processing member comprises a third processing member for processing the particulate matter flowing through the discharge cavity.

[0024] In some embodiments, the third processing member comprises a particulate intercepting member arranged inside the discharge cavity, the particulate intercepting member being used for preventing the particulate matter from passing through the particulate intercepting member.

[0025] In some embodiments, the discharge member has an inlet row, the inlet row comprises a plurality of inlet areas arranged at intervals along the length direction of the discharge member, the discharge cavity is adapted to receive the discharge through the plurality of inlet areas, and the particulate intercepting member is arranged between every two adjacent inlet areas in the same inlet row.

[0026] In some embodiments, the discharge member has a plurality of inlet rows, each of the inlet rows comprises a plurality of inlet areas arranged at intervals along the length direction of the discharge member, the discharge cavity is adapted to receive the discharge through the plurality of inlet areas, and the particulate intercepting member is arranged between every two adjacent inlet rows.

[0027] In some embodiments, the third processing member comprises a releasing member for releasing a coating member into the discharge cavity, the coating member being used for coating the particulate matter.

[0028] In some embodiments, the third processing member comprises a plurality of the releasing members arranged at intervals along the length direction of the discharge member.

[0029] In some embodiments, the third processing member is arranged at a position that is adjustable for processing the particulate matter at the corresponding position.

[0030] In some embodiments, the discharge assembly is used for a battery, the battery comprising at least one of the battery cell.

[0031] According to the second aspect of the present application, the box defines a receiving cavity for receiving the battery cell, and the box comprises the discharge assembly according to the first aspect of the present application. According to the box of the present application, the discharge assembly of the first aspect is arranged, thereby improving the safety of the battery used for the box.

[0032] In some embodiments, the box comprises a frame and a partition beam, the partition beam is located in the space surrounded by the frame to divide the space into a plurality of accommodation cavities, at least one of the frame and the partition beam is configured as the discharge assembly.

[0033] In some embodiments, the partition beam comprises a longitudinal beam extending along the length direction of the box, the longitudinal beam is configured as the discharge assembly; or the partition beam comprises a transverse beam extending along the width direction of the box, the transverse beam is configured as the discharge assembly; or the partition beam comprises a longitudinal beam extending along the length direction of the box and a transverse beam extending along the width direction of the box, at least one of the longitudinal beam and the transverse beam is configured as the discharge assembly.

[0034] In some embodiments, the box comprises a top cover, the top cover comprises the discharge assembly; or the box comprises a bottom plate, the bottom plate comprises the discharge assembly; or the box comprises a top cover and a bottom plate, at least one of the top cover and the bottom plate comprises the discharge assembly.

[0035] According to the third aspect of the present application, the battery comprises: a box, the box is the box according to the second aspect of the present application; and a plurality of battery cells, the battery cells are arranged in the accommodation cavities. According to the battery of the present application, by arranging the box of the second aspect of the present application, the safety of the battery is improved.

[0036] In some embodiments, the box comprises a partition beam for dividing the space in the box into a plurality of accommodation cavities, the partition beam is configured as the discharge assembly, at least one side of the discharge assembly in the width direction is provided with a battery row, the battery row comprises a plurality of battery cells arranged in sequence along the length direction of the discharge assembly, and each battery cell is arranged to discharge into the discharge path individually.

[0037] In some embodiments, both sides of the discharge assembly in the width direction are respectively provided with the battery row.

[0038] In some embodiments, at least one side of the discharge assembly in the width direction is provided with a plurality of battery rows arranged in sequence along the height direction of the discharge assembly.

[0039] In some embodiments, the thickness direction of the battery cell is the same as the height direction of the discharge assembly.

[0040] In some embodiments, the side wall surface of the battery cell facing the discharge member is a first end surface, and the first end surface has a pressure relief area.

[0041] In some embodiments, the electrical connection end of the battery cell is arranged on a wall surface of the battery cell other than the first end surface.

[0042] In some embodiments, a side wall surface of the battery cell facing away from the discharge member is a second end surface, and the electrical connection end of the battery cell is arranged on the second end surface.

[0043] In some embodiments, the battery cell is mounted on the discharge assembly.

[0044] According to the battery of the fourth aspect of the present application, the battery comprises: a discharge member, the discharge member being in a long strip shape, a discharge cavity being formed in the discharge member, and an inlet area being formed on each of the two sides of the width of the discharge member, the discharge cavity being adapted to receive the discharge of the battery cell through the inlet area; a battery row, the two sides in the width direction of the discharge member being respectively provided with the battery row, the battery row comprising a plurality of battery cells arranged in sequence along the length direction of the discharge member, a side of the battery cell facing the discharge member having a pressure relief area, each of the pressure relief areas being respectively arranged corresponding to one of the inlet areas; and a processing member, the processing member comprising a particle interception member covering the inlet area and / or a release member arranged in the discharge cavity, wherein the particle interception member comprises a filter screen and / or an adsorption screen, and the release member is used for releasing an insulating coating and / or a flexible screen covering the particles. According to the battery of the fourth aspect of the present application, the harm and influence range of thermal runaway can be reduced.

[0045] According to the power consuming device of the fifth aspect of the present application, the battery of any one of the embodiments of the present application is arranged to provide electric energy for the power consuming device. According to the power consuming device of the present application, the safety performance of the power consuming device is improved.

[0046] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0048] Figure 1 Fig. 1 is a schematic diagram of an electric vehicle A of an embodiment;

[0049] Figure 2is a schematic view of a battery B according to an embodiment of the application;

[0050] Figure 3 is a perspective view of a battery according to an embodiment of the application;

[0051] Figure 4 is Figure 3 is a perspective view of the exhaust assembly shown in

[0052] Figure 5 is Figure 4 is a magnified view of A shown in

[0053] Figure 6 is Figure 4 is an exploded view of the exhaust assembly shown in

[0054] Figures 7-14 is a schematic view of an exhaust assembly according to different embodiments of the application;

[0055] Figures 15-17 is a schematic view of a treatment piece according to different embodiments of the application;

[0056] Figure 18 is a schematic view of an exhaust assembly according to an embodiment of the application;

[0057] Figure 19 is Figure 18 is an exploded view of the exhaust assembly shown in

[0058] Figure 20 is Figure 18 is a schematic view of the treatment piece after adjustment according to an embodiment of the application;

[0059] Figures 21-26 is a schematic view of an exhaust assembly according to different embodiments of the application;

[0060] Figure 27 is an exploded view of a battery according to an embodiment of the application;

[0061] Figures 28-30 is a schematic view of a box according to different embodiments of the application;

[0062] Figure 31 is a schematic view of a battery cell and an exhaust assembly according to an embodiment of the application;

[0063] Figure 32 is a schematic view of the exhaust direction of an exhaust assembly according to an embodiment of the application;

[0064] Figure 33 is a schematic view of the exhaust direction of an exhaust assembly according to another embodiment of the application;

[0065] Figure 34 is an exploded view of a battery according to another embodiment of the present application;

[0066] Figure 35 is Figure 34 is a schematic view of a discharge direction of the battery shown in FIG. 1;

[0067] Figure 36 is an exploded view of a discharge assembly and a battery pack according to an embodiment of the present application;

[0068] Figure 37 is a schematic view of an electric device according to an embodiment of the present application.

[0069] Reference Signs:

[0070] Electric vehicle A; power battery B; discharge assembly 10;

[0071] Discharge member 1; discharge path 11; discharge cavity 12; inlet region 13; outlet region 14;

[0072] Beam body 15; cold plate 16; inlet row 17;

[0073] Treatment member 2; first treatment member 21; second treatment member 22; third treatment member 23;

[0074] Particle interception member 2a; release member 2b; cladding member 2c;

[0075] First driving device 31; second driving device 32; third driving device 33;

[0076] Box 100; frame 20; partition beam 30; longitudinal beam 40; transverse beam 50; top cover 60; bottom plate 70; accommodating cavity 1001;

[0077] Battery cell 200; first end surface 2001; pressure relief region 2002; second end surface 2003; electrical connection end 2004;

[0078] Battery pack 300; heat insulation member 400; end plate 500; battery 1000; electric device 2000. DETAILED DESCRIPTION

[0079] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein the same or like reference numerals are used to represent the same or similar elements throughout the several views. The embodiments described below are examples of the present application, which are intended to explain the present application, and are not intended to limit the present application.

[0080] The disclosure below provides many different embodiments or examples for implementing different structures of the application. For the sake of brevity and clarity, descriptions of all possible combinations are not provided in the following discussion of specific examples. Of course, it is noted that all combinations are possible and are within the scope of the application. Furthermore, the application can be implemented in different examples with variations of elements and / or described settings. Such variations are not to be regarded as a departure from the spirit and scope of the application, and all combinations of elements, as well as other modifications, are considered to be within the scope of the application. Additionally, it is noted that, as used in the specification and the appended claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a" or "the" component can include a plurality of components.

[0081] In recent years, new energy vehicles have made a leap in development. In the field of electric vehicles, power battery B, as the power source of electric vehicle A (as shown in Figure 1 and Figure 2 indicated), plays an irreplaceable important role. Generally, power battery B is composed of a box body and a plurality of battery monomers contained in the box body. As a core component of new energy vehicles, power battery B has high requirements in terms of safety and cycle life.

[0082] The applicant found that in the conventional battery used as power battery B, the battery monomer in the free exhaust state is easy to cause damage to the internal structure of the battery such as the conductive circuit due to the exhaust, thereby causing insulation failure of the battery, and further causing the battery to catch fire or even explode. The applicant found through further research that the exhaust usually has a high temperature, which makes the exhaust easy to cause damage to some components with an insulating layer, causing the insulating layer to melt or break, causing insulation failure. At the same time, the exhaust of the battery monomer contains a large number of conductive particles, which are easy to move to the electrical connection area when the battery monomer is exhausted, and form a lap joint with the exposed conductive part or the exposed conductive part after the above damage process, so that the battery forms an internal short circuit, or greatly reduces the creepage gap between the two conductive parts, so that they are easy to cause high-voltage sparking failure.

[0083] Based on this, the applicant believes that a discharge assembly can be added to the battery. The discharge assembly can collect the exhaust of the battery monomer, so that the exhaust is no longer in a free exhaust state. At the same time, a processing piece can be provided in the discharge assembly, which can insulate the conductive particles or intercept the conductive particles, so as to solve the insulation failure problem caused by the movement of the conductive particles.

[0084] It should be noted that the battery to which the discharge assembly disclosed in the embodiments of the present application is applied can include a conventional box or can not include a conventional box. In addition, the battery disclosed in the embodiments of the present application can be used in an electric device such as a vehicle, a ship or an aircraft, but is not limited thereto. For example, the embodiments of the present application provide an electric device using a battery as a power supply, and the electric device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, an electric vehicle, an electric car, a ship, a spacecraft, and the like.

[0085] Hereinafter, with reference to the accompanying drawings, a discharge assembly 10 according to an embodiment of the first aspect of the present application is described.

[0086] As shown in Figures 3-5 , the discharge assembly 10 includes a discharge member 1, and the discharge member 1 defines a discharge path 11 for receiving discharge of a battery cell 200.

[0087] For example, the battery cell 200 is arranged outside the discharge member 1, and when thermal runaway occurs, the battery cell 200 discharges discharge such as flame, smoke or gas, and the discharge can enter the discharge path 11, be stored in the discharge path 11, or be guided away through the discharge path 11, etc.

[0088] As shown in Figures 4-8 , the discharge assembly 10 further includes a treatment member 2, and the treatment member 2 is used to treat particulate matter in the discharge flowing through the discharge path 11, at least to limit the movement range of the particulate matter and / or at least to insulate the particulate matter.

[0089] For example, when the particulate matter in the discharge flows through the area where the treatment member 2 is located or the area that can be treated by the treatment member 2, the treatment member 2 can perform operations such as capturing, collecting, limiting, or coating an insulating layer on the particulate matter, etc. to avoid the problem of insulation failure caused by the conductive particles in the particulate matter wandering around.

[0090] In addition, in some other embodiments of the present application, in addition to including the treatment member 2, the discharge assembly 10 can further include other functional members, such as a structural support member, a cooling member, a fireproof member, etc.

[0091] In some embodiments of the present application, the exhaust assembly 10 is used in a battery 1000, which includes at least one battery cell 200. Thus, by providing the exhaust assembly 10 of the embodiments of the present application, the exhaust demand can be met when thermal runaway occurs, and the insulation failure problem caused by the migration of conductive particles can be avoided. For example, the battery cell 200 can be arranged outside the exhaust member 1, and the pressure relief area (such as an exhaust valve or a weak portion) of the battery cell 200 is arranged to face the inlet of the exhaust path 11, so as to facilitate rapid discharge towards the exhaust path 11 when thermal runaway occurs. Alternatively, when the battery cell 200 does not have a pressure relief area, such as a conventional soft-pack battery cell, an inlet can be arranged at each soft-pack battery cell, and the exhaust can enter the exhaust member 1 via a shorter path.

[0092] The battery 1000 according to some embodiments of the present application can include a box for packaging one or more battery cells 200, which can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells 200. Alternatively, the battery 1000 according to some other embodiments of the present application can not include a box for packaging one or more battery cells 200, for example, the exhaust assembly 10 and the battery cell 200 are directly arranged in the mounting cavity of the electric device 2000, and the like.

[0093] When there are a plurality of battery cells 200, the plurality of battery cells 200 can be directly arranged in the box or the mounting cavity of the electric device 2000 without being modularized, in which case the plurality of battery cells 200 can be connected in series and / or in parallel, or the plurality of battery cells 200 can be arranged in battery modules, and the plurality of battery modules can be placed in the box or the mounting cavity of the electric device 2000, in which case the plurality of battery cells 200 in each battery module can be connected in series and / or in parallel, and the plurality of battery modules can also be connected in series and / or in parallel.

[0094] It should be noted that the shape and type of the battery cell 200 according to the embodiments of the present application are not limited, and can be a cylindrical body, a flat sheet body, a rectangular body, or other shapes, and can be a cylindrical battery cell, a square battery cell, or a soft-pack battery cell, and the like. In addition, the battery cell 200 can include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium ion battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, and the like, and the like.

[0095] For example, the battery cell 200 can include an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode tab, a negative electrode tab, and a separator film, and can be a jelly-roll structure or a stacked structure, etc. Among them, the positive electrode tab includes a positive electrode current collector and a positive electrode active material layer, and the negative electrode tab includes a negative electrode current collector and a negative electrode active material layer. Taking a lithium ion battery as an example, the material of the positive electrode current collector can be aluminum, the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium, or lithium manganate, etc., and the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon, etc., which will not be repeated here.

[0096] When thermal runaway occurs, the emissions such as flames, smoke or gas generated by the battery cell 200 can enter the discharge path 11, and the particulate matter in the emissions can be processed by the processing piece 2. The problem of high-voltage insulation failure caused by the conductive particulate matter wandering around can be avoided, and the secondary damage caused by this problem can be avoided.

[0097] In some embodiments of the present application, as shown in Figure 8 and Figure 9 , the discharge path 11 can include a discharge cavity 12 formed inside the discharge piece 1 and a plurality of inlet areas 13 formed on the discharge piece 1, that is, the discharge piece 1 has a discharge cavity 12 inside and a plurality of inlet areas 13 on the discharge piece 1, the inlet area 13 and the discharge cavity 12 both belong to the discharge path 11, and in combination with Figure 3 , the discharge cavity 12 is adapted to correspondingly receive the emissions from the plurality of battery cells 200 through the plurality of inlet areas 13, that is, a plurality of battery cells 200 are arranged outside the discharge piece 1, and the plurality of battery cells 200 are arranged one-to-one with the plurality of inlet areas 13, so that the battery cell 200 can discharge emissions to the corresponding inlet area 13 when thermal runaway occurs. Among them, the form of the inlet area 13 is not limited, which can be an opening form or a weak form, etc., which will not be limited here.

[0098] In some embodiments, as shown in Figure 9 , the processing piece 2 can include a first processing piece 21 arranged at the inlet area 13 for processing the particulate matter flowing through the inlet area 13. In this way, the particulate matter entering the inlet area 13 can be processed by the first processing piece 21 in time, so as to process the particulate matter as early as possible from the source of the discharge path 11, which can better avoid the problem of high-voltage insulation failure caused by the conductive particulate matter wandering around, and avoid the secondary damage caused by this problem. Moreover, since the discharge piece 1 cooperates with the plurality of battery cells, the plurality of inlet areas 13 correspond to the plurality of battery cells 200 respectively, and the particulate matter entering the inlet area 13 can be processed, which can avoid the problem of insulation failure of other battery cells 200 cooperating with the discharge piece 1 after the particulate matter enters the discharge cavity 12.

[0099] It should be noted that the specific position of the first processing piece 21 arranged at the inlet area 13 is not limited, for example, when the first processing piece 21 is used for filtering or adsorption, as shown in FIG. 8, the first processing piece 21 can be arranged to cover the inlet area 13, and for example, when the first processing piece 21 is used for release, as shown in FIG. 9, the first processing piece 21 can be arranged near the inlet area 13. Figure 9 Figure 8

[0100] In the embodiments of the present application, since the first processing piece 21 is arranged at the inlet area 13, the arrangement of the first processing piece 21 is more convenient, for example, the first processing piece 21 can be arranged inside or outside the discharge piece 1, or the first processing piece 21 can be arranged inside and outside the discharge piece 1, etc. It can be understood that when the first processing piece 21 is arranged outside the discharge piece 1, the arrangement of the first processing piece 21 is facilitated, and when the first processing piece 21 is arranged inside the discharge piece 1, the space outside the discharge piece 1 can be occupied by the first processing piece 21, the compactness of the battery monomer 200 and the discharge piece 1 is improved, and the first processing piece 21 is not easy to fall off and break, and the processing can be reliably and effectively implemented.

[0101] In some embodiments, the arrangement position of the first processing piece 21 is fixed. That is, the first processing piece 21 is not adjustable relative to the discharge piece 1, which can reduce the difficulty of arranging the first processing piece 21, is easy to process, and the first processing piece 21 can effectively process when thermal runaway occurs.

[0102] Specifically, when the arrangement position of the first processing piece 21 is fixed, there are many setting schemes for the first processing piece 21. For example, in some optional examples, as shown in FIG. 10, the number of first processing pieces 21 is the same as the number of inlet areas 13 and is arranged one by one, thereby reducing the cost of the first processing piece 21, and one-to-one separate processing can simply and effectively avoid the problem of conductive particles wandering in other inlet areas 13 sharing the first processing piece 21, causing other battery monomers 200 to lose insulation. Figure 9

[0103] For example, in another optional example, as shown in FIG. 11, the number of first processing pieces 21 can be less than the number of inlet areas 13, so that at least two adjacent inlet areas 13 are arranged corresponding to the same first processing piece 21. Thereby, the installation of the first processing piece 21 relative to the discharge piece 1 can be simplified, and the production efficiency can be improved. In this example, in order to better avoid the problem of conductive particles wandering in other inlet areas 13 sharing the first processing piece 21, causing other battery monomers 200 to lose insulation, other processing modes except filtering can be selected, such as adsorption, spraying insulation materials, etc. to process the particles. Figure 10

[0104] ​​​​When the number of the first processing pieces 21 is less than the number of the inlet regions 13, so that at least two adjacent inlet regions 13 are arranged in correspondence with the same first processing piece 21, in some specific examples, as shown in Figure 11 all the inlet regions 13 on the same side wall surface of the discharge piece 1 can be arranged in correspondence with the same first processing piece 21, thereby better simplifying the installation of the first processing piece 21 relative to the discharge piece 1, improving production efficiency, and being suitable for mass production.

[0105] In some embodiments of the present application, as shown in Figures 4-8 the discharge piece 1 is in a long strip structure, that is, the length of the discharge piece 1 is greater than the width and the height, and the length direction X, the width direction Y, and the height direction Z of the discharge piece 1 are perpendicular to each other in pairs. The inlet region 13 is arranged on at least one side of the width direction Y of the discharge piece 1, thereby, by arranging the inlet region 13 on at least one side of the width direction Y, the inlet region 13 can be arranged using the larger wall surface of the discharge piece 1, increasing the number of inlet regions 13, and being conducive to the cooperation of the discharge piece 1 with a larger number of battery monomers 200.

[0106] It should be noted that the length direction of the discharge piece 1 is the length direction of the discharge assembly 10, and both are the X direction indicated in the figure. The width direction of the discharge piece 1 is the width direction of the discharge assembly 10, and both are the Y direction indicated in the figure. The height direction of the discharge piece 1 is the height direction of the discharge assembly 10, and both are the Z direction indicated in the figure.

[0107] When the discharge piece 1 is in a long strip structure, and the inlet region 13 is arranged on at least one side of the width direction Y of the discharge piece 1, and at least two adjacent inlet regions 13 are arranged in correspondence with the same first processing piece 21, the arrangement scheme of the first processing piece 21 can be various. For example, in some optional examples, as shown in Figure 10 and Figure 11 at least two adjacent inlet regions 13 arranged along the length direction X of the discharge piece 1 are arranged in correspondence with the same first processing piece 21, thereby simplifying the installation of the first processing piece 21 relative to the discharge piece 1, improving production efficiency; or, in some other optional examples, as shown in Figure 13 at least two adjacent inlet regions 13 arranged along the height direction Z of the discharge piece 1 are arranged in correspondence with the same first processing piece 21, thereby simplifying the installation of the first processing piece 21 relative to the discharge piece 1, improving production efficiency.

[0108] Alternatively, in some other optional examples, at least two inlet regions 13 arranged adjacent to each other along the length direction X of the discharge member 1 are arranged to correspond to the same first treatment member 21, and at least two inlet regions 13 arranged adjacent to each other along the height direction Z of the discharge member 1 are arranged to correspond to the same first treatment member 21, so that the installation of the first treatment member 21 relative to the discharge member 1 can be simplified, and the production efficiency can be improved.

[0109] For example, in a specific example, as shown in Figures 4-8 both sides of the width direction Y of the discharge member 1 are provided with inlet regions 13, and both sides of the width direction Y of the discharge member 1 are respectively provided with a first treatment member 21, and each first treatment member 21 covers all the inlet regions 13 on the corresponding side. In this way, the installation of the first treatment member 21 relative to the discharge member 1 can be better simplified, the production efficiency can be improved, and mass production is suitable. For example, the first treatment member 21 can be an adsorption net, and both sides of the width direction Y of the discharge member 1 are respectively provided with a filter net or an adsorption net, and the adsorption net extends along the length direction X of the discharge member 1 and covers all the inlet regions 13 on the corresponding side of the discharge member 1, so that the structure can be simplified and processing is facilitated.

[0110] Of course, the present application is not limited thereto, and the first treatment member 21 can also not be arranged in a fixed position. For example, in some other embodiments, the first treatment member 21 can also be arranged to be adjustable in position, so that when thermal runaway occurs, only the position of the first treatment member 21 is adjusted to have discharge entering the inlet region 13, and the particulate matter is treated, so that the number of first treatment members 21 can be reduced, and the cost of the first treatment member 21 can be reduced.

[0111] When the first treatment member 21 is adjustable in position, in some embodiments, as shown in Figure 14 the first treatment member 21 can selectively correspond to any one of a plurality of inlet regions 13, that is, the first treatment member 21 adjustable in position can correspond to only one inlet region 13 at a time, so that when any one of the plurality of inlet regions 13 enters the discharge, the treatment of the first treatment member 21 can be obtained. Alternatively, in some other embodiments, the first treatment member 21 can also be configured to selectively correspond to any adjacent N of M inlet regions 13, where 1≤N

[0112] The position adjustment of the first treatment member 21 can be automatic adjustment or driven adjustment. For example, as shown in Figure 14As shown, the first driving device 31 can be arranged to adjust the position of the first processing piece 21 to achieve driving adjustment. For example, the first processing piece 21 can be arranged to automatically move to a corresponding position under the action of a change in pressure or temperature. Alternatively, the first driving device 31 can be connected to a monitoring system that can monitor which battery monomer 200 is to be discharged, so that the first driving device 31 can drive the first processing piece 21 to move to the corresponding position according to the monitoring result, which will not be described herein.

[0113] In some embodiments, as shown in Figure 15 The first processing piece 21 can be a particle interception piece 2a, which is used to prevent particles from passing through the particle interception piece 2a, so as to limit the movement range of conductive particles. For example, the particle interception piece 2a can include at least one of a filter screen and an adsorption screen, so as to achieve a more effective interception effect. In addition, the adsorption screen has the function of adsorbing particles, and when multiple inlet areas 13 share the same first processing piece 21, the problem of conductive particles wandering to other inlet areas 13 sharing the same first processing piece 21 and causing insulation failure of other battery monomers 200 can be better avoided.

[0114] In some embodiments, as shown in Figure 16 and Figure 17 The first processing piece 21 can be a release piece 2b, which is used to release a wrapping piece 2c used to wrap particles, so as to limit the movement range of conductive particles or to insulate the particles. For example, when the wrapping piece 2c is a flexible screen (for example, as shown in Figure 17 The flexible screen can capture conductive particles to limit the movement range of conductive particles. For another example, when the wrapping piece 2c is an insulating coating (for example, as shown in Figure 16 The insulating coating can wrap conductive particles to insulate the particles.

[0115] In addition, whether it is a filter screen, an adsorption screen, a flexible screen, or a release insulating coating, it will not affect the exhaust of the exhaust to the exhaust path 11, meet the exhaust requirement under thermal runaway, and avoid causing high pressure.

[0116] In summary, the exhaust piece 1 can be provided with an inlet area 13 on only one side, and the exhaust piece 1 can also be provided with an inlet area 13 on multiple sides, respectively. By arranging the first processing piece 21 at each inlet area 13, the particles can be processed at the source of the exhaust path 11, thereby improving the insulation failure problem caused by the conductive particles wandering around during thermal runaway. Therefore, the present scheme can effectively solve the problem of high pressure insulation failure caused by solid particles in thermal diffusion of the battery monomer 200.

[0117] In some embodiments of the present application, as shown in Figure 18 and Figure 19As shown, the discharge path 11 can include a discharge cavity 12 formed inside the discharge member 1 and an outlet area 14 formed on the discharge member 1, that is, the discharge member 1 has the discharge cavity 12 inside and has the outlet area 14 on the discharge member 1, both the outlet area 14 and the discharge cavity 12 belong to the discharge path 11, and the discharge material entering the discharge cavity 12 is adapted to be discharged to the outside of the discharge member 1 through the outlet area 14. Wherein, the form of the outlet area 14 is not limited, for example, it can be in the form of an opening, or in the form of weakness, etc., which is not limited here.

[0118] In addition, the number of outlet areas 14 is not limited, for example, it can be one or more, for example, in some embodiments, as shown in Figure 18 and Figure 19 As shown, the discharge member 1 is in a long strip structure, that is, the length of the discharge member 1 is greater than the width and the height, and the length direction X, the width direction Y and the height direction Z of the discharge member 1 are perpendicular to each other in pairs. The outlet area 14 can be two and respectively arranged on both sides of the length direction X of the discharge member 1, thereby improving the discharge efficiency.

[0119] In some embodiments, as shown in Figure 18 and Figure 19 As shown, the processing member 2 can include a second processing member 22 arranged at the outlet area 14 for processing the particulate material flowing through the outlet area 14. Thus, the particulate material flowing to the outlet area 14 can be timely processed by the second processing member 22 to process the particulate material at the end of the discharge path 11, which can effectively avoid the particulate material from the processing member 2 to wander around and cause high-voltage insulation failure problems, and avoid secondary damage caused by the problem.

[0120] It should be noted that the specific position of the second processing member 22 arranged at the outlet area 14 is not limited, for example, when the second processing member 22 is used for filtering or adsorption, it can be arranged to cover the outlet area 14, and for example, when the second processing member 22 is used for release, it can be arranged near the outlet area 14. In the embodiments of the present application, since the second processing member 22 is arranged at the outlet area 14, the arrangement of the second processing member 22 is more convenient, for example, the second processing member 22 can be arranged inside or outside the discharge member 1, or the second processing member 22 can be arranged inside and outside the discharge member 1. It can be understood that when the second processing member 22 is arranged outside the discharge member 1, it is convenient for the arrangement of the second processing member 22, and when the second processing member 22 is arranged inside the discharge member 1, it can avoid the second processing member 22 occupying the space outside the discharge member 1, and the second processing member 22 is not easy to fall off and break, and can reliably and effectively implement processing.

[0121] In some embodiments, the second processing component 22 is fixed in position. That is, the second processing component 22 is not adjustable relative to the discharge component 1. This reduces the difficulty of setting up the second processing component 22, makes it easier to manufacture, and allows the second processing component 22 to effectively handle thermal runaway.

[0122] Specifically, when the position of the second processing unit 22 is fixed, there can be multiple configuration options for the second processing unit 22. For example, in some optional examples, such as... Figure 18 and Figure 19 As shown, the discharge component 1 has a long strip structure, and at least one of the two ends of the discharge component 1 is open along the length direction X to serve as an outlet area 14. The outlet area 14 covers the second treatment component 22, such as a filter screen and / or an adsorption screen, thereby simplifying the structure and facilitating processing.

[0123] Of course, this application is not limited to this. The second processing element 22 may not be fixed in position. For example, in some other embodiments, the second processing element 22 may be configured to have an adjustable position and be movable between a position covering the exit area 14 and a position avoiding the exit area 14. Therefore, the second processing element 22 can be used for processing as needed. For example, when processing is required using the second processing element 22, its position can be switched to cover the exit area 14 (e.g., ...). Figure 18 (as shown in the diagram), and when the second processing unit 22 is not required for processing, the position of the second processing unit 22 can be switched to avoid the exit area 14 (e.g., Figure 20 (as shown in the diagram), which facilitates rapid exhaust. For example, when the treatment unit 2 includes at least one of the first treatment unit 21 and the third treatment unit 23 mentioned herein, the position of the second treatment unit 22 can be adjusted to avoid the outlet area 14 when the amount of exhaust entering the exhaust chamber 12 is small.

[0124] The position adjustment of the second processing unit 22 can be automatic or driven. For example, combined with... Figure 20 A second drive device 32 can be set to adjust the position of the second processing element 22 to achieve drive adjustment, such as rotation or translation. For example, the second processing element 22 can be configured to automatically move to the corresponding position under pressure or temperature changes, which will not be elaborated here.

[0125] In some embodiments, such as Figure 15As shown, the second processing member 22 can be a particle intercepting member 2a, which is configured to prevent the particles from passing through the particle intercepting member 2a, so as to limit the movement range of the conductive particles. For example, the particle intercepting member 2a can include at least one of a filter screen and an adsorption screen, so as to achieve a more effective interception effect. In addition, the adsorption screen can better avoid the problem of backflow of the conductive particles to the discharge cavity 12, which causes the insulation failure of the battery monomer 200, due to the adsorption of the particles.

[0126] In some embodiments, as shown in Figure 16 and Figure 17 , the second processing member 22 can be a releasing member 2b, which is configured to release a coating member 2c, and the coating member 2c is configured to coat the particles, so as to limit the movement range of the conductive particles, or to insulate the particles. For example, when the coating member 2c is a flexible screen (for example, as shown in Figure 17 ), the flexible screen can capture the conductive particles to limit the movement range of the conductive particles. For another example, when the coating member 2c is an insulating coating (for example, as shown in Figure 16 ), the insulating coating can wrap the conductive particles to insulate the particles.

[0127] In addition, whether it is a filter screen, an adsorption screen, a flexible screen, or a releasing insulating coating, it will not affect the exhaust of the exhaust to the outside of the exhaust path 11, meet the exhaust requirement under thermal runaway, and avoid causing high pressure.

[0128] In some embodiments, as shown in Figure 21 , the second processing member 22 can include a plurality of processing units arranged in sequence along the discharge direction. For example, the particle intercepting member 2a and the releasing member 2b described above are optional processing units, and the second processing member 22 can include at least two of the filter screen, the adsorption screen, and the releasing member 2b, so as to achieve an effective and comprehensive processing effect, and better solve the insulation failure problem.

[0129] In summary, by arranging the second processing member 22 at the outlet area 14, the particles can be processed at the end of the exhaust path 11, so as to improve the insulation failure problem caused by the conductive particles wandering around after leaving the discharge member 1 during thermal runaway. Therefore, the present scheme can effectively solve the high-pressure insulation failure problem caused by solid particles during thermal diffusion of the battery monomer 200.

[0130] In some embodiments of the present application, as shown in Figure 22As shown, the discharge path 11 comprises a discharge cavity 12 formed inside the discharge member 1, and the treatment member 2 comprises a third treatment member 23 for treating the particulate flowing through the discharge cavity 12. In this way, the particulate entering the discharge cavity 12 can be treated by the third treatment member 23, and the problem of the conductive particles in the particulate wandering around to cause high-voltage insulation failure can be avoided to some extent, and the secondary damage caused by this problem can be avoided. Moreover, since the space of the discharge cavity 12 is relatively sufficient, the third treatment member 23 can be flexibly selected and arranged.

[0131] It should be noted that the specific position of the third treatment member 23 in the discharge cavity 12 is not limited. For example, the third treatment member 23 comprises a particle interception member 2a arranged in the discharge cavity 12, and the particle interception member 2a is used to prevent the particulate from passing through the particle interception member 2a, so as to limit the movement range of the conductive particles. In this way, the problem of the conductive particles wandering in the discharge cavity 12 to cause insulation failure can be more effectively avoided. For example, the particle interception member 2a can comprise at least one of a filter screen and an adsorption screen, so as to have a more effective interception effect.

[0132] For example, in some specific examples, as shown in Figure 22 As shown, the discharge member 1 has an inlet row 17, the inlet row 17 comprises a plurality of inlet areas 13 arranged at intervals along the length direction X of the discharge member 1, the discharge cavity 12 is adapted to receive the discharge through the plurality of inlet areas 13, and the particle interception member 2a is arranged between every two adjacent inlet areas 13 in the same inlet row 17. In this way, the problem of the conductive particles wandering in the discharge cavity 12 to cause insulation failure of other battery monomers 200 can be more effectively avoided.

[0133] For example, in some specific examples, as shown in Figure 23 As shown, the discharge member 1 has a plurality of inlet rows 17, each of the inlet rows 17 comprises a plurality of inlet areas 13 arranged at intervals along the length direction X of the discharge member 1, the discharge cavity 12 is adapted to receive the discharge through the plurality of inlet areas 13, and the particle interception member 2a is arranged between adjacent two inlet rows 13. In this way, the arrangement scheme of the third treatment member 23 can be simplified, and the processing is easy.

[0134] For example, in some specific examples, as shown in Figure 24 As shown, the discharge member 1 has a plurality of inlet rows 17, each of the inlet rows 17 comprises a plurality of inlet areas 13 arranged at intervals along the length direction X of the discharge member 1, the particle interception member 2a is arranged between adjacent two inlet rows 17, and the particle interception member 2a is also arranged between every two adjacent inlet areas 13 in the same inlet row 17. In this way, the problem of the conductive particles wandering in the discharge cavity 12 to cause insulation failure of other battery monomers 200 can be more effectively avoided.

[0135] It is worth mentioning that the plurality of inlet rows 17 can be located on the same side wall surface of the discharge member 1, or can be respectively arranged on different wall surfaces of the discharge member 1. For example, at least one inlet row 17 is arranged on each of the two side wall surfaces of the discharge member 1 in the width direction Y, and at this time, the adsorption net extending along the length direction X of the discharge member 1 can be arranged as the third processing member 23 at the central position of the width direction in the discharge cavity 12, so that the arrangement of the third processing member 23 can be simplified, and the problem of the conductive particles wandering in the discharge cavity 12 to cause insulation failure of other battery monomers 200 can be more effectively avoided.

[0136] In some embodiments of the present application, as shown in Figure 25 The third processing member 23 can further include a release member 2b for releasing the coating member 2c into the discharge cavity 12, and the coating member 2c is used to coat the particulate matter, so that the movement range of the conductive particles can be limited, or the particulate matter can be insulated, thereby the problem of the conductive particles wandering in the discharge cavity 12 to cause insulation failure can be more effectively avoided. For example, when the coating member 2c is a flexible net, the flexible net can capture the conductive particles to limit the movement range of the conductive particles. For another example, when the coating member 2c is an insulating coating, the insulating coating can wrap the conductive particles to insulate the particulate matter.

[0137] In addition, whether it is a filter net, an adsorption net, a flexible net, or a release insulating coating, it will not affect the exhaust, meet the exhaust requirement under thermal runaway, and avoid causing high pressure.

[0138] For example, in some embodiments, as shown in Figure 25 The third processing member 23 can include a plurality of release members 2b arranged at intervals along the length direction X of the discharge member 1. In this way, the particulate matter can be more comprehensively and effectively treated in the entire length direction X, and the problem of the conductive particles wandering in the discharge cavity 12 to cause insulation failure can be more fully avoided.

[0139] In addition, when the discharge member 1 has a plurality of inlet rows 17, each of the inlet rows 17 includes a plurality of inlet areas 13 arranged at intervals along the length direction X of the discharge member 1, if the third processing member 23 includes a plurality of release members 2b arranged at intervals along the length direction X of the discharge member 1, the particulate matter treatment effect can be more comprehensively exerted. Alternatively, each of the inlet areas 13 is respectively provided with one release member 2b. Or, one release member 2b is provided with a plurality of inlet areas 13 at the same time, and the like, which is not limited here.

[0140] In some embodiments, as shown in Figure 25As shown, the setting position of the third processing member 23 can be fixed, thereby simplifying the installation; in some other embodiments, the setting position of the third processing member 23 can also be adjustable, for processing the particulate matter at the corresponding position, thereby, the number and cost of the third processing member 23 can be saved. Wherein, the position adjustment of the third processing member 23 can be automatic adjustment or driving adjustment. For example, in combination with Figure 26 The third driving device 33 can be arranged to adjust the position of the third processing member 23, to realize the driving adjustment, and effectively realize the processing of the particulate matter sprayed at different positions by the third processing member 23. For another example, the third processing member 23 can be arranged to automatically move to the corresponding position under the action of the change of pressure or temperature, which is not described herein.

[0141] In some embodiments, the third processing member 23 can include multiple processing units. For example, the particle interception member 2a and the release member 2b described above are optional processing units, for example, the third processing member 23 can simultaneously include at least two of the filter screen, the adsorption screen and the release member 2b, thereby effectively and comprehensively achieving the processing effect, and better solving the insulation failure problem.

[0142] In summary, by arranging the third processing member 23 in the discharge cavity 12, the particulate matter in the discharge cavity 12 can be sufficiently and relevantly processed, and the insulation failure problem caused by the conductive particles wandering around in the discharge cavity 12 during thermal runaway can be improved. Therefore, the present scheme can effectively solve the high-voltage insulation failure problem caused by solid particles during thermal diffusion of the battery monomer 200.

[0143] In addition, it is worth noting that the processing member 2 according to the embodiments of the present application can also simultaneously include at least two of the first processing member 21, the second processing member 22 and the third processing member 23 described herein, thereby achieving a more effective particulate matter processing effect, and more effectively solving the high-voltage insulation failure problem caused by solid particles during thermal diffusion of the battery monomer 200.

[0144] It should be noted that the function of the discharge member 1 according to the embodiments of the present application is not limited to this. For example, in some embodiments of the present application, the discharge member 1 can also include a heat exchange part for exchanging heat with at least one of the battery monomer 200 and the discharge cavity 12, to dissipate heat for at least one of the battery monomer 200 and the discharge cavity 12, thereby achieving the effect of cooling and reducing the probability of heat spreading. Therefore, the discharge member 1 has the function of heat dissipation in addition to the function of exhaust under the premise of ensuring the exhaust function.

[0145] For example, the heat exchange part can include a heat exchange cavity, the heat exchange cavity can be filled with a flowable heat exchange fluid, the heat exchange fluid can flow in the heat exchange cavity, and continuously exchange heat with the discharge in the discharge cavity 12 to take away the heat accumulated in the discharge cavity 12, reduce the probability of heat concentration, improve safety, and reduce the probability of heat spread.

[0146] For example Figures 3-8 As shown, the discharge part 1 can include a beam body 15 and a cold plate 16 arranged outside the beam body 15, combined with Figure 5 The beam body 15 defines a discharge cavity 12, or the beam body 15 and the cold plate 16 define a discharge cavity 12, the cold plate 16 is formed with an inlet area 13 communicating with the discharge cavity 12, and the cold plate 16 is formed with a heat exchange cavity. For example, the beam body 15 is provided with a cold plate 16 on both sides in the width direction Y, and each cold plate 16 is provided with a battery monomer 200 on the side away from the beam body 15, for example, the battery monomer 200 is placed on the outside of the cold plate 16 in a single row or multiple rows, and the discharge cavity 12 is located on the inside of the cold plate 16.

[0147] Therefore, the discharge part 1 is arranged in layers, which is convenient for processing and manufacturing, and can increase the heat exchange area of the heat exchange cavity and the battery monomer 200, and also can increase the heat conduction area of the heat exchange cavity and the discharge cavity 12, which is beneficial to improve the cooling effect. The cold plate 16 can also separate the discharge cavity 12 and the battery monomer 200 to avoid the adverse thermal effects of high-temperature discharge on the battery monomer 200. In addition, the battery monomers 200 on both sides of the discharge part 1 in the width direction Y share the same discharge part 1, which can improve the compactness of the structure.

[0148] Next, referring to the drawings, the box 100 according to the second aspect of the present application is described.

[0149] As Figures 27-30 As shown, the box 100 according to the embodiment of the present application defines a containing cavity 1001 for containing the battery monomer 200, that is, the battery monomer 200 can be arranged in the containing cavity 1001, and the box 100 includes the discharge assembly 10 according to the first aspect of the present application. Therefore, the box 100 according to the embodiment of the present application is provided with the discharge assembly 10, which can avoid the conductive particles in the particulate matter in the discharge of the battery monomer 200 from wandering around to cause insulation failure under thermal runaway, thereby improving safety.

[0150] Furthermore, by integrating the emission assembly 10 into the housing 100, the emission assembly 10 not only performs the exhaust function but also serves as a reinforcing structure of the housing 100, such as acting as a beam. This allows the housing 100 to reduce or even eliminate some beam structures, resulting in higher space utilization, a more compact structure, and higher energy density for the battery 1000 using this housing 100. It should be noted that the placement of the emission assembly 10 within the housing 100 is not limited; for example, some embodiments are described below.

[0151] For example, such as Figures 27-30 As shown, the housing 100 includes a frame 20 and a partition beam 30. The partition beam 30 is located within the space surrounded by the frame 20 to divide the space into multiple accommodating cavities 1001. At least one of the frame 20 and the partition beam 30 is configured as a discharge assembly 10. At this time, the battery cell 200 can be located on the horizontal side of the discharge assembly 10. In the event of thermal runaway, the battery cell 200 can be discharged in the horizontal direction.

[0152] Furthermore, when battery cells 200 are respectively arranged on both sides of the partition beam 30 and the partition beam 30 is constructed as an emission assembly 10, the battery cells 200 on both sides can share the emission assembly 10, thereby reducing the number of emission assemblies 10, reducing costs, improving emission efficiency, and improving structural compactness, thereby increasing energy density.

[0153] For example, such as Figure 29 As shown, the partition beam 30 includes a longitudinal beam 40 extending along the length direction F1 of the box body 100 (but does not include a transverse beam 50 extending along the width direction F2 of the box body 100), and the longitudinal beam 40 is configured as the discharge assembly 10.

[0154] For example, such as Figure 30 As shown, the partition beam 30 includes a crossbeam 50 extending along the width direction F2 of the box body 100 (but does not include a longitudinal beam 40 extending along the length direction F1 of the box body 100), and the crossbeam 50 is configured as an exhaust assembly 10.

[0155] For example, such as Figure 28 As shown, the partition beam 30 includes a longitudinal beam 40 extending along the length direction F1 of the box body 100 and a transverse beam 50 extending along the width direction F2 of the box body 100, and at least one of the longitudinal beam 40 and the transverse beam 50 is configured as an exhaust assembly 10.

[0156] For example, such as Figure 27 As shown, the housing 100 includes a top cover 60 (excluding the bottom plate 70), and the top cover 60 includes a discharge assembly 10. At this time, the battery cell 200 can be located below the discharge assembly 10, and the battery cell 200 can be discharged upward in the event of thermal runaway.

[0157] For example, such as Figure 28As shown in FIG. 1A and FIG. 1B, the battery 1000 includes the battery cell 200 and the box 100. The box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. The discharge material of the battery cell 200 includes the conductive particles. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200 in a direction away from the battery cell 200.

[0158] For example, as shown in FIG. 1A and FIG. 1B, the box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. Figure 27 and Figure 28 As shown in FIG. 1A and FIG. 1B, the box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. The discharge material of the battery cell 200 includes the conductive particles. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200 in a direction away from the battery cell 200.

[0159] For example, as shown in FIG. 1A and FIG. 1B, the box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. Figure 27 and Figure 28 As shown in FIG. 1A and FIG. 1B, the box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. The discharge material of the battery cell 200 includes the conductive particles. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200 in a direction away from the battery cell 200.

[0160] As shown in FIG. 1A and FIG. 1B, the box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. The discharge material of the battery cell 200 includes the conductive particles. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200 in a direction away from the battery cell 200.

[0161] As shown in FIG. 1A and FIG. 1B, the box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. The discharge material of the battery cell 200 includes the conductive particles. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200 in a direction away from the battery cell 200. Figure 27 and Figure 32 As shown in FIG. 1A and FIG. 1B, the box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. The discharge material of the battery cell 200 includes the conductive particles. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200 in a direction away from the battery cell 200. Figures 33-35 As shown in FIG. 1A and FIG. 1B, the box 100 includes the discharge assembly 10. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200. The discharge material of the battery cell 200 includes the conductive particles. The discharge assembly 10 is configured to discharge the discharge material of the battery cell 200 in a direction away from the battery cell 200.

[0162] In the following, the battery 1000 according to the third aspect of the present application is described with reference to the accompanying drawings.

[0163] As shown in FIG. 1A and FIG. 1B, the battery 1000 according to the third aspect of the present application includes the box 100 and the battery cell 200. The box 100 is the box 100 according to the second aspect of the present application. The battery cell 200 is multiple and arranged in the accommodating cavity 1001. Thus, the battery 1000 according to the third aspect of the present application can avoid the conductive particles in the particulate matter of the discharge material of the battery cell 200 to wander around and cause insulation failure problem, and improve safety. Figure 27 Figure 29 As shown in FIG. 1A and FIG. 1B, the battery 1000 according to the third aspect of the present application includes the box 100 and the battery cell 200. The box 100 is the box 100 according to the second aspect of the present application. The battery cell 200 is multiple and arranged in the accommodating cavity 1001. Thus, the battery 1000 according to the third aspect of the present application can avoid the conductive particles in the particulate matter of the discharge material of the battery cell 200 to wander around and cause insulation failure problem, and improve safety.

[0164] ​In some embodiments of the present application, the battery 100 comprises a plurality of partition beams 30 for dividing the space in the battery 100 into a plurality of accommodation cavities 1001, and the partition beams 30 are configured as the discharge assembly 10. Therefore, the discharge assembly 10 can be a long strip-shaped beam structure, the length direction of the discharge assembly 10 is the length direction of the partition beam 30, the width direction of the discharge assembly 10 is the width direction of the partition beam 30, and the height direction of the discharge assembly 10 is the height direction of the partition beam 30. The height direction Z, the width direction Y and the length direction X are perpendicular to each other, for example, when the battery 1000 is applied to a vehicle, the length direction X and the width direction Y can be horizontally arranged, and the height direction Z can be vertically arranged.

[0165] In some embodiments, as shown in Figure 27 At least one side of the discharge assembly 10 in the width direction Y is provided with a battery row 300, and the battery row 300 comprises a plurality of battery monomers 200 arranged in the length direction X of the discharge assembly 10 in sequence, and each battery monomer 200 is discharged into the discharge path individually. Therefore, the arrangement scheme is simple, the discharge assembly 10 can be used for discharge when multiple battery monomers 200 are in thermal runaway, the structure of the battery 1000 is more compact, and the energy density is higher. It should be noted that the plurality of battery monomers 200 in the battery row 300 can be in parallel and / or series, which is not limited here.

[0166] In some specific examples, as shown in Figure 27 Both sides of the discharge assembly 10 in the width direction Y are provided with a battery row 300. Therefore, the battery rows 300 on both sides can share the same discharge assembly 10 for discharge, so that the structure is compact, the space utilization rate can be improved, and the energy density of the battery 1000 can be improved.

[0167] For example, as shown in Figure 27 When both sides of the discharge assembly 10 in the width direction Y are provided with a battery row 300, the battery rows 300 on both sides in the width direction Y are opposite to each other in the length direction X of the discharge assembly 10, that is, the plurality of battery monomers 200 in the battery row 300 on one side are opposite to the plurality of battery monomers 200 in the battery row 300 on the other side along the width direction Y of the discharge assembly 10, so that the space utilization rate can be further improved, and the energy density of the battery 1000 can be improved.

[0168] Alternatively, when both sides of the discharge assembly 10 in the width direction Y are provided with a battery row 300, the battery rows 300 on both sides in the width direction Y are staggered in the length direction X of the discharge assembly 10, that is, the plurality of battery monomers 200 in the battery row 300 on one side are obliquely opposite to the plurality of battery monomers 200 in the battery row 300 on the other side along the width direction Y of the discharge assembly 10, so that the problem of mutual spraying in thermal runaway can be effectively avoided.

[0169] In some specific examples, as shown in FIG. 1, at least one side of the discharge assembly 10 in the width direction Y is provided with a plurality of battery rows 300 arranged in sequence along the height direction Z of the discharge assembly 10, so that the discharge assembly 10 can be used for a larger number of battery monomers 200 discharge, further improving the structural compactness and space utilization, and improving the energy density of the battery 1000. Figure 27 For example, as shown in FIG. 2, the plurality of battery rows 300 on the same side in the width direction Y are arranged in sequence along the length direction X of the discharge assembly 10, that is, the plurality of battery monomers 200 in one of the battery rows 300 on the same side are arranged in sequence along the height direction Z of the discharge assembly 10 with the plurality of battery monomers 200 in another battery row 300 on the same side, so that the space utilization can be further improved, and the energy density of the battery 1000 can be improved.

[0170] Figure 27 For example, as shown in FIG. 3, the plurality of battery rows 300 on the same side in the width direction Y are arranged in sequence along the length direction X of the discharge assembly 10, that is, the plurality of battery monomers 200 in one of the battery rows 300 on the same side are arranged in sequence along the height direction Z of the discharge assembly 10 with the plurality of battery monomers 200 in another battery row 300 on the same side, so that the space utilization can be further improved, and the energy density of the battery 1000 can be improved.

[0171] Alternatively, the plurality of battery rows 300 on the same side in the width direction Y are staggered along the length direction X of the discharge assembly 10, that is, the plurality of battery monomers 200 in one of the battery rows 300 on the same side are arranged in sequence along the height direction Z of the discharge assembly 10 with the plurality of battery monomers 200 in another battery row 300 on the same side, which will not be described here.

[0172] When at least one side of the discharge assembly 10 in the width direction Y is provided with a plurality of battery rows 300 arranged in sequence along the height direction Z of the discharge assembly 10, in some embodiments, as shown in FIG. 4, the thickness direction of the battery monomer 200 is the same as the height direction Z of the discharge assembly 10, so that more battery rows 300 can be accommodated in the height direction Z of the discharge assembly 10, so that the space utilization can be further improved, and the energy density of the battery 1000 can be improved, effectively solving the safety failure risk of the high-energy-density battery 1000. Figure 27 In addition, through the above arrangement, the height of the battery monomer 200 relative to the box 100 can also be reduced, so that the discharge position (such as the explosion-proof valve or the weak point) of the battery monomer 200 relative to the box 100 is reduced, and the position height of the battery monomer 200 eruption can be effectively reduced, so that the influence range of the discharge material in the height direction Z is smaller, so as to reduce the diffusion area and improve the overall safety performance of the battery 1000.

[0173]

[0174] ​​It should be noted that the number of battery rows 300 arranged on the same side of the width is not limited, for example, the number of rows can be less than the number of battery monomers 200 included in each battery row 300, for example, it can be 1 row, 2 rows or 3 rows, so as to reduce the extrusion force caused by too many rows, reduce the external extrusion force on the battery monomer 200, and further reduce the severity of the explosion of the battery monomer 200, and improve the safety performance. In addition, when the width side of the discharge assembly 10 has a heat exchange part, the battery monomer 200 arranged in this way can make the heat exchange part cool more battery monomers 200 at the same time.

[0175] In some embodiments of the present application, as shown in Figure 31 and Figure 36 , the side wall of the battery monomer 200 facing the discharge assembly 10 is the first end face 2001, and the first end face 2001 has a pressure relief area 2002, for example, the pressure relief area 2002 can be an explosion-proof valve or a weak part, etc. In the case of thermal runaway, the battery monomer 200 can break through the pressure relief area 2002 to discharge the discharge material into the discharge assembly 10. By arranging the pressure relief area 2002 towards the discharge assembly 10, the discharge path 11 can be shortened, the impact of high-temperature discharge material on other battery monomers 200 can be reduced, and the safety performance can be improved.

[0176] In some embodiments, as shown in Figure 31 , the electrical connection end 2004 of the battery monomer 200 is arranged on the wall surface of the battery monomer 200 other than the first end face 2001, for example, the electrical connection end 2004 can be a tab, an electrode terminal, etc. Therefore, by arranging the electrical connection end 2004 and the pressure relief area 2002 on different wall surfaces, the distance between the electrical connection end 2004 and the pressure relief area 2002 can be increased, and the probability of adverse thermal effects and insulation failure of the electrical connection end 2004 caused by the discharge material sprayed from the pressure relief area 2002 can be reduced.

[0177] For example, in one specific example, as shown in Figure 31 , the side wall of the battery monomer 200 away from the discharge assembly 10 is the second end face 2003, and the electrical connection end 2004 of the battery monomer 200 is arranged on the second end face 2003. That is, the pressure relief area 2002 and the electrical connection end 2004 are arranged on opposite sides of the battery monomer 200, and the electrical connection end 2004 is arranged away from the discharge assembly 10, so that the distance between the electrical connection end 2004 and the pressure relief area 2002 can be better increased, and the probability of adverse thermal effects and insulation failure of the electrical connection end 2004 caused by the discharge material sprayed from the pressure relief area 2002 can be reduced.

[0178] In addition, in some examples, when the battery cell 200 is formed by winding bare cells, it is convenient to set electrical connection end 2004 and pressure relief area 2002 at both ends of the winding axis, which can shorten the lead-out path of electrical connection end 2004 and make the venting smoother.

[0179] In some embodiments, such as Figure 31 As shown, the first end face 2001 and the second end face 2003 are the two end faces of the length of the battery cell 200. When the length of the battery cell 200 extends horizontally and the thickness extends vertically and is the height direction F3 of the battery 1000, the electrical connection end 2004 of the battery cell 200 is located on the second end face 2003 and the pressure relief area 2002 is located on the first end face 2001. This can reduce the space occupancy of the battery cell 200 in the height direction F3 of the battery 1000, making the overall structure of the battery 1000 more compact in the height direction. This is beneficial to reducing the overall height of the battery 1000. When the battery 1000 is installed on the chassis of a vehicle, it helps to solve the problem of chassis ground clearance and reduces the problem of the battery being easily bumped and scratched due to the low chassis of the vehicle, thus making the battery 1000 have a longer service life.

[0180] Furthermore, when the side of the emission assembly 10 facing the battery cell 200 is a heat exchange section and a cooling medium flows through the heat exchange section, the heat exchange section can effectively cool the pressure relief area 2002 of the battery cell 200 and the emissions, reducing the probability of thermal runaway propagation. Moreover, once the cooling medium leaks, the leak point is far away from the electrical connection terminal 2004 of the battery cell 200, resulting in higher safety.

[0181] Of course, this application is not limited to this. When the pressure relief area 2002 is located at one end of the length of the battery cell 200, for example, the electrical connection end 2004 of the battery cell 200 can also be located on the thick side wall of the battery cell 200, thereby reducing the difficulty of electrical connection.

[0182] This application is not limited to this. In some embodiments, the electrical connection end 2004 of the battery cell 200 can also be provided on the first end face 2001 at the same time. That is, the electrical connection end 2004 and the pressure relief area 2002 are located on the same side of the battery cell 200. In this case, an insulating element can be provided between the electrical connection end 2004 and the emission assembly 10 to avoid the problem of insulation failure caused by the emission.

[0183] In some embodiments of the present application, the fixing manner of the battery cell 200 is not limited, for example, the battery cell 200 can be installed on the exhaust assembly 10, so as to facilitate the installation of the battery cell 200, and ensure the exhaust reliability of the battery cell 200 to the exhaust assembly 10, and improve the safety. It should be noted that the connection manner of the battery cell 200 and the exhaust assembly 10 is not limited, for example, the battery cell 200 can be directly pasted on the exhaust member 1, so as to improve the connection efficiency.

[0184] It should be noted that the specific structure of the battery 1000 according to the embodiments of the present application is not limited thereto, for example, in combination with Figure 36 , it can also include a heat insulating member 400 arranged between every two adjacent battery cells 200 in the battery row 300, and an end plate 500 arranged at both ends of the length of the battery row 300, etc., which will not be repeated here. In addition, it should be noted that the number and arrangement of the partition beams 30, the battery row 300, etc. included in the battery 1000 according to the embodiments of the present application are not limited, and can be specifically set according to actual requirements, which will not be repeated here.

[0185] Next, with reference to the accompanying drawings, the battery 1000 according to the fourth aspect of the present application is described.

[0186] As shown in Figures 3-8 , the battery 1000 includes an exhaust member 1, a battery row 300 and a processing member 2.

[0187] The exhaust member 1 is a long strip structure, and the exhaust member 1 is formed with an exhaust cavity 12, and the width of the exhaust member 1 is formed with an inlet area 13 on both sides, and the exhaust cavity 12 is adapted to receive the exhaust of the battery cell 200 through the inlet area 13.

[0188] Both sides of the exhaust member 1 in the width direction Y are respectively provided with the battery row 300, and the battery row 300 includes a plurality of battery cells 200 arranged in sequence along the length direction X of the exhaust member 1, and the side of the battery cell 200 facing the exhaust member 1 has a pressure relief area 2002, and each pressure relief area 2002 is respectively arranged corresponding to one inlet area 13.

[0189] The processing member 2 includes a particle intercepting member 2a covering the inlet area 13 and / or a releasing member 2b arranged in the exhaust cavity 12, wherein the particle intercepting member 2a includes a filter screen and / or an adsorption screen, and the releasing member 2b is used to release the insulating coating and / or flexible screen wrapped with particulate matter.

[0190] For example, when the battery cell 200 discharges the emission such as flame, smoke or gas, etc. when thermal runaway occurs, the emission can enter the emission cavity 12 through the inlet area 13, be stored in the emission cavity 12, or be guided away through the emission cavity 12, etc. When the particulate in the emission flows through the area where the processing piece 2 is located or the area that can be processed by the processing piece 2, the processing piece 2 can capture, collect, limit, or coat an insulating layer on the particulate, etc. to avoid the problem of insulation failure caused by the conductive particles in the particulate wandering around, thereby improving safety.

[0191] It should be noted that the battery 1000 according to the fourth aspect of the present application can include a conventional box, or can not include a conventional box. In addition, it should be noted that the specific optional embodiments of the processing piece 2 in the battery 1000 according to the fourth aspect of the present application can refer to the embodiments of the processing piece 2 in the emission assembly 10 according to the first aspect of the present application, and the specific optional embodiments of the battery cell 200 in the battery 1000 according to the fourth aspect of the present application can refer to the embodiments of the battery cell 200 in the battery 1000 according to the third aspect of the present application, without contradiction. To simplify the description, it is not repeated here.

[0192] Next, referring to the accompanying drawings, the power utilization device 2000 according to the fifth aspect of the present application is described.

[0193] As shown in Figure 37 The power utilization device 2000 according to the embodiments of the present application includes the battery 1000 according to any embodiment of the present application, and the battery 1000 is used to provide power for the power utilization device 2000. Thus, the safety of the power utilization device 2000 can be improved.

[0194] It should be noted that the type of the power utilization device 2000 according to the embodiments of the present application is not limited, which can be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, and an electric tool, etc. The vehicle can be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile, etc. The spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, etc. The electric toy includes a fixed or mobile electric toy, for example, a game machine, an electric automobile toy, an electric ship toy, and an electric airplane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembling electric tool, and a railway electric tool, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator, and an electric planer, etc.

[0195] For example, as shown in Figure 37As shown, when the battery 1000 is used in a vehicle, the battery 1000 can be arranged at the bottom, head or tail of the vehicle. The battery 1000 can be used for power supply of the vehicle, for example, the battery 1000 can be used as the operating power source of the vehicle. The vehicle can further include a controller and a motor, the controller being used to control the battery 1000 to supply power to the motor, for example, for the power demand of the vehicle during starting, navigation and driving. In some embodiments of the present application, the battery 1000 can not only be used as the operating power source of the vehicle, but also be used as the driving power source of the vehicle, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle.

[0196] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0197] In addition, the terms "first", "second", "third", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", "third" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0198] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0199] In this application, unless otherwise explicitly specified and limited, a first feature "on" or "under" a second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact with an intervening medium. Also, a first feature "over", "above", and "on top of" a second feature can mean that the first feature is directly above or obliquely above the second feature, or that the first feature is merely horizontally higher than the second feature. A first feature "under", "below", and "underneath" a second feature can mean that the first feature is directly below or obliquely below the second feature, or that the first feature is merely horizontally lower than the second feature.

[0200] In the description of the application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative appearance of the above terms in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Moreover, the different embodiments or examples described in the specification can be combined and combined in different ways, and the features described in the different embodiments or examples can be combined and combined in different ways, without departing from the scope of the present application.

[0201] Although the embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes, modifications, alternatives, and variations to the embodiments can be made without departing from the spirit and scope of the application, and that the scope of the application is defined by the claims and their equivalents.

Claims

1. A drain assembly, comprising: include: An emission element that defines an emission path for receiving emissions from individual battery cells; as well as A treatment element for treating particulate matter in emissions flowing through the emission path, at least for limiting the range of motion of the particulate matter and / or at least for insulating the particulate matter.

2. The drain assembly of claim 1, wherein, The emission path includes an emission chamber formed inside the emission element and a plurality of inlet regions formed on the emission element. The emission chamber is adapted to receive emissions from a plurality of battery cells through the plurality of inlet regions. The processing element includes a first processing element disposed at the inlet regions for processing particulate matter flowing through the inlet regions.

3. The drain assembly of claim 2, wherein, The location of the first processing component is fixed.

4. The drain assembly of claim 3, wherein, The number of the first processing unit is the same as the number of the import area and they are set in a one-to-one correspondence.

5. The drain assembly of claim 3, wherein, The number of the first processing units is less than the number of the inlet areas, so that at least two adjacent inlet areas are corresponding to the same first processing unit.

6. The drain assembly of claim 5, wherein, The discharge component is a long strip structure, and the inlet area is located on at least one side of the discharge component in the width direction. At least two inlet areas arranged adjacent to each other along the length direction of the discharge component correspond to the same first processing component, and / or at least two inlet areas arranged adjacent to each other along the height direction of the discharge component correspond to the same first processing component.

7. The drain assembly of claim 6, wherein, The discharge component has an inlet area on both sides in the width direction, and a first processing component is provided on each side in the width direction of the discharge component, with the first processing component on each side covering the entire inlet area on the corresponding side.

8. The drain assembly of claim 5, wherein, All the inlet areas on the same side wall of the discharge component are correspondingly provided with the same first treatment component.

9. The drain assembly of claim 2, wherein, The position of the first processing component is adjustable.

10. The drain assembly of claim 2, wherein, The first treatment element is located inside and / or outside the emission element.

11. The drain assembly of claim 1, wherein, The emission path includes an emission chamber formed inside the emission element and an outlet region formed on the emission element, the emission material in the emission chamber being adapted to be discharged to the outside of the emission element through the outlet region, and the treatment element including a second treatment element disposed at the outlet region for treating particulate matter flowing through the outlet region.

12. The drain assembly of claim 11, wherein, The discharge component is a long strip structure, and at least one of its two ends is open along the length of the discharge component to serve as the outlet area, and the second processing component covers the outlet area.

13. The exhaust assembly of claim 11, wherein, The second processing unit is adjustable in position and can move between a position that covers the exit area and a position that avoids the exit area.

14. The exhaust assembly of claim 11, wherein, The second processing unit includes multiple processing units arranged sequentially along the discharge direction.

15. The exhaust assembly of claim 11, wherein, The second treatment element is located inside and / or outside the discharge element.

16. The drain assembly of claim 1, wherein, The processing unit includes a particle interceptor for preventing particles from passing through it.

17. The drain assembly of claim 16, wherein, The particle interception device includes a filter screen and / or an adsorption screen.

18. The drain assembly of claim 1, wherein, The processing unit includes a release element for releasing a coating element used to coat particulate matter.

19. The drain assembly of claim 18, wherein, The covering includes an insulating coating and / or a flexible mesh.

20. The drain assembly of claim 1, wherein, The discharge path comprises a discharge cavity formed inside the discharge member, and the treatment member comprises a third treatment member for treating particulate matter flowing through the discharge cavity.

21. The exhaust assembly of claim 20, wherein, The third treatment member comprises a particle intercepting member arranged in the discharge cavity, and the particle intercepting member is configured to prevent particulate matter from passing through the particle intercepting member.

22. The drain assembly of claim 21, wherein, The discharge member is provided with an inlet row, the inlet row comprises a plurality of inlet areas arranged at intervals along the length direction of the discharge member, and the discharge cavity is adapted to receive discharge through the plurality of inlet areas, and the particle intercepting member is arranged between every two adjacent inlet areas in the same inlet row.

23. The exhaust assembly of claim 21, wherein, The discharge member is provided with a plurality of inlet rows, each of the inlet rows comprises a plurality of inlet areas arranged at intervals along the length direction of the discharge member, and the discharge cavity is adapted to receive discharge through the plurality of inlet areas, and the particle intercepting member is arranged between adjacent two inlet rows.

24. The exhaust assembly of claim 20, wherein, The third treatment member comprises a release member for releasing a coating member into the discharge cavity, and the coating member is configured to coat particulate matter.

25. The drain assembly of claim 24, wherein, The third treatment member comprises a plurality of release members arranged at intervals along the length direction of the discharge member.

26. The exhaust assembly of claim 20, wherein, The third treatment member is arranged in a position that is adjustable for treating particulate matter at the corresponding position.

27. The drain assembly of any of claims 1-26, wherein, The discharge assembly is used for a battery, and the battery comprises at least one battery cell.

28. A case, wherein, The box defines a receiving cavity for accommodating a battery cell, and the box comprises the discharge assembly according to any one of claims 1-27.

29. The case of claim 28, wherein, The box comprises a frame and a partition beam arranged in a space surrounded by the frame to divide the space into a plurality of receiving cavities, and at least one of the frame and the partition beam is configured as the discharge assembly.

30. The box of claim 29, wherein The partition beam comprises a longitudinal beam extending along the length direction of the box, and the longitudinal beam is configured as the discharge assembly; or The partition beam comprises a transverse beam extending along the width direction of the box, and the transverse beam is configured as the discharge assembly; or The partition beam comprises a longitudinal beam extending along the length direction of the box and a transverse beam extending along the width direction of the box, and at least one of the longitudinal beam and the transverse beam is configured as the discharge assembly.

31. The box of claim 28, wherein The box comprises a top cover, and the top cover comprises the discharge assembly; or The box comprises a bottom plate, and the bottom plate comprises the discharge assembly; or The box comprises a top cover and a bottom plate, and at least one of the top cover and the bottom plate comprises the discharge assembly.

32. A battery, wherein, Comprise: a box according to claim 28; and a plurality of battery cells arranged in the receiving cavities. The box comprises a partition beam for dividing a space in the box into a plurality of receiving cavities, and the partition beam is configured as the discharge assembly, and at least one side of the discharge assembly in the width direction is provided with a battery row, and the battery row comprises a plurality of battery cells arranged in sequence along the length direction of the discharge assembly, and each of the battery cells is individually discharged to the discharge path.

33. The battery of claim 32, wherein, ​ 34. The battery of claim 33, wherein, The battery row is arranged on both sides of the discharge assembly in the width direction.

35. The battery of claim 33, wherein, At least one side of the discharge assembly in the width direction is provided with a plurality of battery rows arranged in the height direction of the discharge assembly.

36. The battery of claim 35, wherein, The thickness direction of the battery cell is the same as the height direction of the discharge assembly.

37. The battery of claim 32, wherein, The side wall of the battery cell facing the discharge member is a first end face, and the first end face has a pressure relief area.

38. The battery of claim 37, wherein, The electrical connection end of the battery cell is arranged on the wall surface of the battery cell other than the first end face.

39. The battery of claim 38, wherein, The side wall of the battery cell away from the discharge member is a second end face, and the electrical connection end of the battery cell is arranged on the second end face.

40. The battery of any one of claims 32-39, wherein, The battery cell is mounted on the discharge assembly.

41. A battery, wherein, The discharge assembly comprises: The discharge member is in a long strip shape, and a discharge cavity is formed in the discharge member. The discharge member has an inlet area on both sides in the width direction. The discharge cavity is adapted to receive the discharge of the battery cell through the inlet area. The battery row is arranged on both sides of the discharge assembly in the width direction. The battery row comprises a plurality of battery cells arranged in the length direction of the discharge member. The side of the battery cell facing the discharge member has a pressure relief area. Each pressure relief area corresponds to an inlet area. The processing member comprises a particle interception member covering the inlet area and / or a release member arranged in the discharge cavity. The particle interception member comprises a filter screen and / or an adsorption screen. The release member is used to release the insulating coating and / or flexible screen coated with particles.

42. An electrical device, comprising: The battery according to any one of claims 32-41 is used to provide electrical energy for the electrical device.

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