Batteries and power consuming devices

Abstract

The present application provides a battery and a power consumption device, the battery including a single cell and an emission treatment device, the pressure release mechanism of the single cell is capable of releasing material inside the single cell, the treatment space of the emission treatment device is connected to the pressure release mechanism, and the treatment member in the treatment space processes the material released from the pressure release mechanism to the treatment space, thereby reducing a specified parameter of the material, and after the specified parameter of the material is reduced, the possibility of the material burning is greatly reduced, and the material is less likely to burn even in the event of thermal runaway, which is advantageous for improving the safety of the battery.

Description

[Technical field]

[0001] This application claims priority to Chinese patent application No. 202210447131.9, entitled "Battery and Power Consumption Device," filed on April 26, 2022, the entire contents of which are incorporated herein by reference.

[0002] This application relates to the field of battery technology, and more particularly to batteries and power consuming devices. [Background technology]

[0003] Batteries have advantages such as high specific energy and high power density, and are widely used in electronic devices such as mobile phones, laptops, electric scooters, electric cars, electric airplanes, electric boats, electric toy cars, electric toy boats, electric toy airplanes, and power tools.

[0004] In the development of battery technology, lithium ion batteries have been widely used due to their advantages of high energy density, high output, long cycle life, and low environmental pollution. At present, in addition to improving the energy density of batteries, safety performance is also an important issue. If the safety issues of a battery are not guaranteed, the battery cannot be used. How to improve the safety of batteries is an issue that people skilled in the art are researching. Summary of the Invention

[0005] In view of the above problems, the present application provides a battery and a power consuming device having high safety.

[0006] According to a first aspect, the present application provides a battery comprising a single cell and an emission treatment device, the single cell having a pressure relief mechanism arranged to be capable of releasing a substance inside the single cell, the emission treatment device including a treatment space arranged to be in communication with an outer surface of the pressure relief mechanism such that the substance released by the pressure relief mechanism enters the treatment space, the emission treatment device further including a treatment member provided in the treatment space, the treatment member being used to treat the substance to reduce a predetermined parameter in the substance.

[0007] With the above-mentioned configuration, the substance released from the single cell is treated by the treatment member, a predetermined parameter of the substance is reduced, and after the predetermined parameter of the substance is reduced, the possibility of the substance burning is significantly reduced, and the battery is less likely to ignite even in the event of thermal runaway, which is advantageous in improving the safety of the battery.

[0008] In a battery according to a specific embodiment of the present application, the predetermined parameter is at least one of temperature, combustible particle concentration, or combustible gas concentration, and the emission treatment device reduces the possibility of the material burning by reducing the predetermined parameter, making the battery less likely to catch fire, which is advantageous for improving the safety of the battery.

[0009] In a battery according to a specific embodiment of the present application, the treatment member includes a spray assembly disposed in the treatment space for spraying a treatment liquid into the treatment space, and a liquid supply assembly communicating with the spray assembly for delivering the treatment liquid to the spray assembly.

[0010] In a battery according to a specific embodiment of the present application, the battery includes a battery box, the single battery is placed in the battery box, and the discharge treatment device further includes a treatment box forming a treatment space therein, the treatment box is provided with an opening communicating with the treatment space, and the treatment box is covered by an end face of the battery box via the opening.

[0011] In a battery according to a specific embodiment of the present application, the spray assembly is arranged so as to face the end face, and by spraying the treatment liquid toward the end face, the treatment liquid ejected from the spray assembly can reach the end face of the battery box, and the treatment liquid can exchange heat with the battery box. The treatment liquid can remove heat generated when the single cell experiences thermal runaway, and can play a role in cooling the single cell.

[0012] In a battery according to a specific embodiment of the present application, the battery includes a housing having a partition member that divides the housing to form two spaces, one of which is a processing space and the other of which is used for placing a single battery.

[0013] In a battery according to a specific embodiment of the present application, the spray assembly is arranged facing the partition member to allow heat exchange between the treatment liquid and the partition member, and the treatment liquid can absorb heat generated when the single cell experiences thermal runaway and cool the single cell, which is advantageous in reducing the possibility of danger occurring and improving the safety of the battery.

[0014] In a cell according to a specific embodiment of the present application, the spray assembly includes a liquid supply line and a nozzle, the nozzle being in communication with the liquid supply line, the liquid supply line being in communication with the liquid supply assembly, the liquid supply line being used to deliver treatment liquid to the nozzle.

[0015] In a battery according to a specific embodiment of the present application, a connection portion is provided in the liquid supply pipeline, a connection groove is provided in the inner wall of the treatment space, and the connection portion is connected to the connection groove, thereby fixing the treatment member in the treatment space, preventing the liquid supply pipeline and nozzle from moving in the treatment space, and reducing the possibility of a collision occurring.

[0016] In a battery according to a specific embodiment of the present application, the liquid supply pipeline is arranged in a convoluted shape, and a plurality of nozzles are provided, the plurality of nozzles being arranged at equal intervals along the liquid supply pipeline, thereby not only enabling the treatment liquid ejected from the nozzles to be uniformly distributed in the treatment space, but also enabling the treatment path and treatment time of the material by the ejected treatment liquid to be extended, which is advantageous in improving the treatment effect of the material by the treatment liquid.

[0017] In a battery according to a specific embodiment of the present application, the liquid supply assembly includes a liquid reservoir and a liquid pumping power member in communication between the liquid reservoir and the inlet of the liquid supply line.

[0018] In a battery according to a specific embodiment of the present application, the release treatment device further includes a connecting passage arranged to communicate the treatment space with the outer surface of the pressure relief mechanism, whereby the material released by the pressure relief mechanism enters the treatment space via the connecting passage and is treated.

[0019] In a battery according to a specific embodiment of the present application, the connecting passage is provided with a liquid blocking structure for blocking the treatment liquid from contacting the single cell, thereby preventing the treatment liquid from affecting the single cell and being advantageous in avoiding problems such as short-circuiting of the single cell due to contact with the treatment liquid.

[0020] In a battery according to a specific embodiment of the present application, the liquid blocking structure includes a check valve, the inlet of which is connected to the outer surface of the pressure relief mechanism and the outlet of which is connected to the treatment space, such that material only flows from the pressure relief mechanism to the treatment space.

[0021] In the battery according to a specific embodiment of the present application, the liquid barrier structure includes a bent portion for blocking the treatment liquid from flowing along the connecting passage to the pressure relief mechanism.

[0022] In a battery according to a specific embodiment of the present application, the single cell includes a first end face and a second end face, a pressure relief mechanism is provided on the first end face, an electrode terminal is provided on the second end face, and the first end face is provided opposite the connecting passage, thereby allowing the electrode terminal to be separated from the pressure relief mechanism, thereby reducing the possibility of contact between the treatment liquid and the electrode terminal, and advantageously improving the safety of the battery.

[0023] In a battery according to a specific embodiment of the present application, the projection of the connecting passage and the projection of the pressure relief mechanism at least partially overlap along the penetrating direction of the connecting passage, so that the material released from the pressure relief port by the pressure relief mechanism flows into the connecting passage via a short path and then enters the treatment space.

[0024] In the battery according to a specific embodiment of the present application, the release treatment device further includes a switch, which is arranged to communicate the treatment space with the outer surface of the pressure relief mechanism after being turned on.

[0025] In the battery according to a specific embodiment of the present application, the switch includes a fragile portion, which is arranged to communicate between the treatment space and the outer surface of the pressure relief mechanism after being broken.

[0026] In a battery according to a specific embodiment of the present application, the single cell includes a first end face and a second end face, a pressure release mechanism is provided on the first end face and an electrode terminal is provided on the second end face, the first end face is provided opposite the weak portion, and the pressure release mechanism and the electrode terminal are provided on both ends of the single cell, respectively, so that the electrode terminal can be separated from the pressure release mechanism, reducing the possibility of contact between the treatment liquid and the electrode terminal, and advantageously improving the safety of the battery.

[0027] In a battery according to a specific embodiment of the present application, the projection of the weak portion and the projection of the pressure release mechanism at least partially overlap along the thickness direction of the weak portion, thereby allowing the substance released from the pressure release port by the pressure release mechanism to act on a switch formed by the weak portion.

[0028] In a battery according to a specific embodiment of the present application, the release treatment device further includes a discharge passage capable of connecting the treatment space with the external space of the battery, and the substance treated in the treatment space is discharged to the external space of the battery via the discharge passage, thereby reducing accumulation of the released substance in the battery.

[0029] In a battery according to a specific embodiment of the present application, the discharge treatment device further includes a discharge switch provided in the discharge passage, and the discharge switch is arranged to communicate the treatment space with the external space of the battery through the discharge passage after being turned on.

[0030] In a battery according to a specific embodiment of the present application, the battery further comprises a recovery module in communication with the treatment space for recovering the treatment liquid.

[0031] In a battery according to a specific embodiment of the present application, the release treatment device includes a recovery section provided in the treatment space, the recovery section is arranged to protrude toward the bottom of the release treatment device to form a recovery groove, the recovery section is provided with a recovery hole in the protruding direction connecting the recovery module and the recovery groove, and the treatment liquid collected by the recovery groove can be introduced into the recovery module via the recovery hole.

[0032] In a battery according to a specific embodiment of the present application, the recovery module includes a recovery power member and a recovery box, and the input end of the recovery power member is connected to the recovery hole and the output end of the recovery power member is connected to the recovery box, so that the treatment liquid can flow quickly to the recovery box by the recovery power member.

[0033] In a battery according to a specific embodiment of the present application, the recovery module further includes a filter member that is connected between the recovery hole and the input end of the recovery power member and filters the treatment liquid, thereby separating impurities such as combustible particles in the treatment liquid and improving the cleanliness of the treatment liquid.

[0034] According to a second aspect, the present application further provides a power consuming device, which includes a battery provided by any one of the above technical solutions, and the battery is used for supplying electric energy.

[0035] The technical solutions according to the embodiments of the present disclosure provide at least the following beneficial effects:

[0036] The present application provides a battery, the battery including a single cell and an emission treatment device, a pressure release mechanism of the single cell is capable of releasing material inside the single cell, a treatment space of the emission treatment device is connected to the pressure release mechanism, and a treatment member in the treatment space processes the material released from the pressure release mechanism to the treatment space, thereby reducing a predetermined parameter of the material, and after the predetermined parameter of the material is reduced, the possibility of the material burning is greatly reduced, and the material is less likely to burn even in the event of thermal runaway, which is advantageous for improving the safety of the battery.

[0037] The present application provides a power consuming device including a battery provided by the above technical solution, so that the power consuming device has high safety.

[0038] The above description is only a summary of the technical solution of the present application, which can be implemented according to the contents of the specification in order to more clearly understand the technical means of the present application. In order to facilitate a clearer understanding of the above and other objectives, features and advantages of the present application, the following specific embodiments of the present application are given. [Brief description of the drawings]

[0039] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating the preferred embodiments and are not intended to limit the present application. In addition, the same reference numerals are used in the various drawings to refer to the same elements. [Figure 1] 1 is a structural schematic diagram of a vehicle according to some embodiments of the present application. [Diagram 2] FIG. 2 is an exploded structural schematic diagram of a battery according to some embodiments of the present application. [Diagram 3] FIG. 2 is an exploded structural schematic diagram of a battery according to some embodiments of the present application. [Figure 4] FIG. 2 is a schematic diagram showing the divided structure of a battery according to some embodiments of the present application. [Diagram 5] 2 is a schematic diagram of the divided structure of a processing box according to some embodiments of the present application; FIG. [Figure 6] 2 is a structural schematic diagram of a check valve in a liquid blocking structure according to some embodiments of the present application. FIG. [Figure 7] 3A to 3C are structural schematic diagrams of bent portions in the liquid blocking structures of some embodiments of the present application. [Figure 8] FIG. 2 is a structural schematic diagram of a processing box in a battery according to some embodiments of the present application, taken from a first viewpoint. [Figure 9] FIG. 2 is a structural schematic diagram of a processing box in a battery according to some embodiments of the present application, viewed from a second perspective. [Figure 10] FIG. 2 is a structural schematic diagram of a recovery module in a battery according to some embodiments of the present application.

[0040] The symbols in the specific embodiments are as follows: 20 Batteries 21 End cover 22 Housing 23 Cell Assembly 200 Controller 300 Motor 1000 vehicles 1 D cell 2 Processing Space 3 Processing materials 31 Spray Assembly 311 Liquid supply line 3112 Connection 312 Nozzle 32 Fluid Supply Assembly 321 Liquid Tank 322 Liquid transport power components 4 Battery box 5 Processing box 50 Lid plate 51 Collection Department 511 Recovery Hole 52 Recovery Ditch 6 Connecting passages 61 Check valve 62 Bending section 7 Discharge passage 71 Eject switch 8. Recovery Power Components 9 Collection Box 10 Filter material DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0041] Hereinafter, the embodiments of the technical solution of the present application will be described in detail with reference to the drawings. The following embodiments are only used to more clearly explain the technical solution of the present application, and are not used as examples to limit the protection scope of the present application.

[0042] Please note that unless otherwise specified, technical or scientific terms used in the examples of this application have the ordinary meaning as understood by one of ordinary skill in the art to which the examples of this application belong.

[0043] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center," "longitudinal direction," "lateral direction," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial direction," "radial direction," "circumferential direction," and the like are based on the orientations or positional relationships shown in the drawings, and are intended for the convenience and simplification of the description of the embodiments of the present application, and are not intended to indicate or imply that a specified device or element must have a specific orientation and be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the embodiments of the present application.

[0044] In addition, technical terms such as "first", "second", etc. are merely for explanatory purposes and should not be understood as indicating or implying relative importance or implying the number of technical features shown. In the description of the embodiments of the present application, the meaning of "plurality" refers to two or more, unless otherwise specified.

[0045] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "attached", "connected", "coupled", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, an integration, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, an internal communication between two elements, or an interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present application according to the specific situation.

[0046] In the description of the embodiments of the present application, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may mean that the first feature and the second feature are in direct contact with each other, or that the first feature and the second feature are in indirect contact with each other via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature may indicate that the first feature is directly above or diagonally above the second feature, or may only indicate that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "on the lower surface" of a second feature may indicate that the first feature is directly below or diagonally below the second feature, or may only indicate that the horizontal height of the first feature is smaller than that of the second feature.

[0047] At present, with the development of the market, the applications of batteries are becoming more and more widespread. Batteries are not only widely used in energy storage power systems such as hydroelectric, thermal, wind and solar power plants, but also in many fields such as electric transportation such as electric bicycles, electric motorcycles and electric cars, military equipment and aerospace. As the application fields of batteries expand, the market demand is also constantly expanding.

[0048] Conventional batteries often discharge high-temperature mixed materials to the outside during thermal runaway. If the high-temperature mixed materials are discharged outside the battery and come into sufficient contact with air, it is likely to cause the battery to deflagrate and even explode, affecting the safety of related users.

[0049] Based on the above phenomenon, the inventor designs a cooling device to cool the battery, but the inventor further finds that even if the battery is cooled, after the battery experiences thermal runaway, it still discharges high-temperature mixed material to the outside, posing a safety risk.

[0050] As a result of investigations, the inventors believe that it is possible to treat the flammable exhaust smoke generated by the thermal runaway of the single cell to make it non-combustible. In order to treat the exhaust smoke and reduce its flammability, the inventors have conducted research and found that by setting a treatment structure to treat the exhaust smoke generated by thermal runaway, the parameters related to the flammability of the exhaust smoke are reduced, the possibility of the exhaust smoke burning is reduced, and the exhaust smoke is less likely to burn even if the battery goes into thermal runaway, which is advantageous for improving the safety of the battery.

[0051] Based on the above, the inventor conducted intensive research in order to improve the processing performance of the current collector, and as a result, by providing a release treatment device, the treatment space of the release treatment device is connected to the pressure relief mechanism of the single cell, and when a substance released by the pressure relief mechanism enters the treatment space, the treatment member treats the released substance to reduce a certain parameter, greatly reducing the possibility of the substance burning, and the substance is less likely to burn even in the event of thermal runaway, which is advantageous in improving the safety of the battery.

[0052] The battery disclosed in the embodiments of the present application may be, but is not limited to, a rechargeable battery, and a rechargeable battery refers to a battery that can be continuously used by activating the active material by charging after discharging the battery. The battery is provided with a pressure relief mechanism, and when the battery experiences thermal runaway, the pressure relief mechanism can release the material inside the battery to realize pressure relief.

[0053] The embodiment of the present application provides a single cell, which is used in a power consuming device such as, but not limited to, a vehicle, a ship, or an aircraft. A power supply system for the power consuming device may be configured using a battery or the like including the single cell disclosed in the present application. In this way, it is advantageous to reduce the possibility of combustion of the exhaust smoke emitted from the battery cell, and the single cell and the battery are unlikely to burn even when the single cell and the battery undergo thermal runaway, which is advantageous to improve the safety of the single cell and the battery.

[0054] An embodiment of the present application provides a power consuming device that uses a battery as a power source, and the power consuming device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, an electric scooter, an electric car, a boat, a spacecraft, etc. Here, the electric toy may include a stationary or mobile electric toy, such as a game console, an electric car toy, an electric boat toy, an electric plane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0055] In the following embodiment, for convenience of explanation, a vehicle 1000 is taken as an example of an electric power consuming device in one embodiment of the present application.

[0056] Referring to FIG. 1, FIG. 1 is a structural schematic diagram of a vehicle 1000 according to some embodiments of the present application. The vehicle 1000 may be an engine-driven vehicle, a natural gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or a range extender type vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head, or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300, and the controller 200 is configured to control the battery 100 to supply power to the motor 300, for example, for the startup, navigation, and operating power needs during driving of the vehicle 1000.

[0057] In some embodiments of the present application, the battery 100 may be used not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, providing driving power to the vehicle 1000 in place of or in part from fuel or natural gas.

[0058] Referring to FIG. 2, FIG. 2 is a structural schematic diagram of a battery 100 according to some embodiments of the present application. The battery 100 includes a single cell 20, and the single cell 20 may be multiple. The multiple cells 20 may be connected in series, parallel, or mixed, and the mixed connection refers to the presence of both series and parallel connections among the multiple cells 20. Of course, the battery 100 may be configured such that the multiple cells 20 are first connected in series, parallel, or mixed to form a battery module, and the multiple battery modules are further connected in series, parallel, or mixed to be integrated and housed in a housing. The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for realizing electrical connection between the multiple cells 20.

[0059] Each cell 20 may be a secondary or primary battery, including but not limited to a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery. The cells 20 may be cylindrical, flat, rectangular, or have other shapes.

[0060] Referring to Fig. 3, Fig. 3 is an exploded structural schematic diagram of a cell 20 according to some embodiments of the present application. The cell 20 is the smallest unit constituting a battery. As shown in Fig. 3, the cell 20 includes an end cover 21, a housing 22, a cell assembly 23, a pressure relief mechanism (not shown), and other functional members.

[0061] According to some embodiments of the present application, Fig. 4 is a schematic diagram of a battery according to some embodiments of the present application. The present application provides a battery, the battery includes a cell 1 and an emission treatment device, the cell 1 has a pressure relief mechanism, the pressure relief mechanism is arranged to release a substance inside the cell 1, the emission treatment device includes a treatment space 2, the treatment space 2 is arranged to be in communication with an outer surface of the pressure relief mechanism, the substance released by the pressure relief mechanism can enter the treatment space 2, the emission treatment device further includes a treatment member 3 disposed in the treatment space 2, the treatment member 3 is used to treat the substance to reduce a predetermined parameter in the substance.

[0062] The pressure relief mechanism may refer to a structure provided in the single cell 1, which opens when the single cell 1 experiences thermal runaway and the internal pressure exceeds a predetermined value, thereby releasing substances inside the single cell 1, thereby reducing the internal pressure of the single cell 1 and improving the safety of the single cell 1.

[0063] The processing space 2 refers to a space formed by the discharge processing device, and the processing space 2 is in communication with the outer surface of the pressure relief mechanism, and the material discharged by the pressure relief mechanism can be discharged into the processing space 2. The processing space 2 can function to temporarily accommodate the material. In the battery 100, the processing space 2 may be a space independent of the mounted unit cell 1, or the processing space 2 and the space in which the unit cell 1 is mounted may be set to be the same, in this way, the discharged material can be quickly and timely processed, which is advantageous for improving the safety of the battery.

[0064] The processing member 3 may be a member having a function of processing a substance, and is provided in the processing space 2 to process the substance in the processing space 2 and reduce a predetermined parameter of the substance in the processing space 2.

[0065] According to the above technical solution, the material released from the single battery 1 is treated by the treatment member 3, and a certain parameter of the material is reduced. After the certain parameter of the material is reduced, the possibility of the material burning is greatly reduced, and the battery is less likely to catch fire even in the event of thermal runaway, which is advantageous for improving the safety of the battery.

[0066] In some embodiments of the present application, the predetermined parameter is at least one of a temperature, a combustible particle concentration, or a combustible gas concentration.

[0067] Temperature is the temperature of a substance, and when the temperature of a substance is decreased, the temperature of the substance is lower than the ignition point of the substance, and the substance is less likely to ignite and burn. Combustible particle concentration is the amount of combustible particles contained in a substance per unit volume, and when the combustible particle concentration is decreased, the substance is less likely to burn. Combustible gas concentration is the amount of combustible gas contained in a substance per unit volume, and when the combustible gas concentration is decreased, the substance is less likely to burn. By reducing the above-mentioned predetermined parameters, the possibility of the substance burning can be effectively reduced, and the battery is less likely to ignite, which is advantageous for improving the safety of the battery.

[0068] In some embodiments of the present application, the processing member 3 is disposed in the processing space 2 and includes a spray assembly 31 for spraying processing liquid into the processing space 2, and a liquid supply assembly 32 in communication with the spray assembly 31 for delivering the processing liquid to the spray assembly 31.

[0069] The spray assembly 31 may be an assembled member capable of ejecting the treatment liquid and forming the treatment liquid into fine droplets that are scattered around, and is attached to the treatment space 2 so as to spray the treatment liquid into the treatment space 2, thereby increasing the contact area between the treatment liquid and the material in the treatment space 2, and is advantageous in improving the treatment effect and treatment efficiency of the material by the treatment member 3.

[0070] When the treatment liquid comes into contact with the material, it not only exchanges heat with the material to lower the temperature of the material, but also traps combustible particles in the material in the treatment liquid, thereby lowering the concentration of combustible particles in the material. The treatment liquid may be liquid such as ultrapure water, fluoride liquid, etc., which is highly inert and does not easily react chemically with the material, and is advantageous in improving safety during the use of the treatment liquid, and can quickly vaporize and remove heat from the material after receiving heat. At the same time, the treatment liquid after vaporization can also reduce the concentration of combustible particles or combustible gas in the material.

[0071] The liquid supply assembly 32 can supply the treatment liquid with a constant pressure to the spray assembly 31, so that the treatment liquid can be sprayed at a constant pressure by the spray assembly 31 into the treatment space 2. This is advantageous for enlarging the spray area of ​​the spray assembly 31 and improving the spray uniformity, and the material released from the pressure release mechanism can more easily come into contact with the treatment liquid.

[0072] In some embodiments of the present application, the battery includes a battery box 4, the single cell 1 is placed in the battery box 4, the discharge treatment device further includes a treatment box 5 forming a treatment space 2 therein, the treatment box 5 has an opening communicating with the treatment space 2, and the treatment box 5 is covered on an end face of the battery box 4 via the opening.

[0073] The battery box 4 may have a housing structure in which a storage space is formed, the cell 1 is disposed in the storage space, and the cell 1 can be protected. Preferably, the cell 1 comes into contact with the battery box 4, so that heat exchange can be performed between the cell 1 and the battery box 4. The treatment box 5 may refer to a housing structure surrounding the treatment space 2 in order to accommodate and treat the substance released from the pressure release mechanism. The opening may be a structure provided in the treatment box 5, and the opening structure of the treatment box 5 communicates with the treatment space 2, so that the treatment box 5 can cover the outer end surface of the battery box 4 through the opening.

[0074] In some embodiments of the present application, the opening of the processing box 5 may further be provided with a cover plate 50 that is fixedly connected to the outer end face of the battery box 4 by welding, enabling good heat transfer with the battery box 4.

[0075] With the above structure, the discharge treatment device can be located outside the battery box 4, and the discharge treatment device does not occupy space within the battery box 4, thereby alleviating the shortage of internal space in the battery box 4, improving the proportion of the internal space occupied by the single cells 1, and favoring the improvement of the energy density of the battery.

[0076] In addition, with the above structure, by installing the discharge treatment device outside the battery box 4, it becomes easy to assemble the battery box 4 and the discharge treatment device separately during production, and then assemble the two after each other, which effectively improves the manufacturing efficiency of such products and is advantageous for mass production of the products.

[0077] In some embodiments of the present application, the spray assembly 31 is positioned such that it is directed toward the end surface so as to spray processing liquid toward the end surface.

[0078] By arranging the spray assembly 31 toward the end face, the treatment liquid sprayed from the spray assembly 31 can reach the end face of the battery box 4, and the treatment liquid can exchange heat with the battery box 4. The treatment liquid can remove heat generated during thermal runaway of the single cell 1 and play a role in cooling the single cell 1, which is advantageous in reducing the possibility of danger occurring and improving the safety of the battery.

[0079] According to the above technical solution, the treatment liquid can not only treat the material, but also play the role of cooling the battery, which is advantageous to improving the safety of the battery.

[0080] In some embodiments of the present application, the battery includes a housing having a partition member disposed within the housing, the partition member dividing the housing to form two spaces, one of which is a processing space 2 and the other of which is used to place a single cell 1.

[0081] The housing may refer to a structure in which a storage cavity is formed inside, and may play a role in protecting the members in the storage cavity. The partition member may be a structural member provided in the housing, and may partition the storage cavity in the housing into two spaces, one of which is a processing space 2 and the other is a space for placing the unit cell 1. Preferably, the unit cell 1 is in contact with the partition member, and heat exchange can be performed between the unit cell 1 and the partition member.

[0082] In some embodiments of the present application, the spray assembly 31 is positioned to face the partition member to provide heat exchange between the treatment liquid and the partition member.

[0083] By arranging the spray assembly 31 facing the partition member, the treatment liquid sprayed from the spray assembly 31 can reach the partition member and exchange heat with the partition member. The treatment liquid can then absorb heat generated during thermal runaway of the single cell 1, thereby playing a role in cooling the single cell 1, thereby reducing the possibility of danger occurring and advantageously improving the safety of the battery.

[0084] According to the above technical solution, the treatment liquid can not only treat the substance, but also play the role of cooling the cell 1, which is advantageous to improving the safety of the battery.

[0085] In some embodiments of the present application, as shown in FIG. 5, the spray assembly 31 includes a liquid supply line 311 and a nozzle 312, the nozzle 312 being in communication with the liquid supply line 311, and the liquid supply line 311 being in communication with the liquid supply assembly 32.

[0086] The nozzle 312 may be a device provided in the processing space 2, which sprays the processing liquid into the processing space 2 as fine droplets, thereby atomizing the processing liquid and increasing the contact area between the processing liquid and the material, which is advantageous in improving the processing effect on the material.

[0087] The liquid supply pipe 311 may refer to a part of a pipe that can be arranged in the processing space 2, and is connected to the nozzle 312, and can deliver a processing liquid having a certain pressure to the nozzle 312. Preferably, the nozzle 312 is connected to the liquid supply pipe 311, and the nozzle 312 and the liquid supply pipe 311 are fixed relative to each other.

[0088] In some embodiments of the present application, the liquid supply pipe 311 is provided with a connection portion 3112, a connection groove is provided on the inner wall of the processing space 2, and the connection portion 3112 is connected to the connection groove.

[0089] The connection part 3112 may refer to a protrusion structure provided on the liquid supply pipeline 311, or may be formed by connecting a block-shaped structure to the liquid supply pipeline 311 by a connection method such as welding or bolting, or may be formed by integrally molding with the liquid supply pipeline 311 during the manufacturing process of the liquid supply pipeline 311. Those skilled in the art can select a method of forming the connection part 3112 according to actual circumstances.

[0090] The inner wall of the processing space 2 may refer to the side of the wall surrounding the processing space 2 that is closer to the processing space 2; when the processing space 2 is formed by separating a housing with a partition member, the inner wall of the processing space 2 may be the side of the partition member that is closer to the processing space 2, or the side of the housing that is closer to the processing space 2; when the processing space 2 is formed by a processing box 5, the inner wall of the processing space 2 may be the end face of the battery box 4 that is covered by the opening of the processing box 5, or the inner side of the processing box 5 that is closer to the processing space 2.

[0091] The connection groove may be a groove-like structure provided on the inner wall of the processing space 2, and is provided to match the connection part 3112, and the connection part 3112 can be inserted into the connection groove. By providing the connection groove that engages with the connection part 3112 on the inner wall of the processing space 2, the processing member 3 is fixed in the processing space 2, and the liquid supply pipe and the nozzle are prevented from moving in the processing space, and the possibility of collision can be reduced.

[0092] In some embodiments of the present application, the liquid supply pipe 311 is provided in a convoluted shape, a plurality of nozzles 312 are provided, and the plurality of nozzles 312 are provided at equal intervals along the liquid supply pipe 311 .

[0093] The term "convoluted shape" refers to a shape formed by bending the liquid supply pipe 311 multiple times, and the liquid supply pipe 311 is arranged in the processing space 2 in a convoluted shape, which is advantageous for uniformly distributing the liquid supply pipe 311 in the processing space 2.

[0094] The multiple nozzles 312 are arranged at equal intervals along the liquid supply pipeline 311, and the multiple nozzles 312 in the liquid supply pipeline 311 can be uniformly arranged in the processing space 2. The processing liquid ejected from the nozzles 312 can be uniformly distributed in the processing space 2, which is advantageous in improving the processing effect and processing efficiency of the material using the processing liquid.

[0095] In some embodiments of the present application, the liquid supply assembly 32 includes a liquid tank 321 and a liquid power member 322 that communicates between the liquid tank 321 and an inlet of the liquid supply line 311 .

[0096] In some embodiments of the present application, the liquid supply assembly 32 is disposed in the battery, and the liquid supply assembly 32 is connected to the battery box 4 via a connecting member such as a connecting bolt, so that the liquid supply assembly 32 can be installed together with the battery box 4, and is easy to install. In some embodiments of the present application, the liquid supply assembly 32 may be disposed in a power consuming device such as a vehicle, and the liquid supply assembly 32 communicates with the liquid supply pipe 311 via a liquid supply pipe. The liquid supply assembly 32 is disposed in the power consuming device, which can reduce the weight and structural redundancy of the battery. Those skilled in the art can select the installation position of the liquid supply assembly 32 according to the actual situation.

[0097] The liquid tank 321 may have a housing structure with a storage space in which the treatment liquid is stored. The liquid sending power member 322 may be a liquid sending pump, which can extract the treatment liquid from the liquid tank 321, and can transport the treatment liquid in the liquid tank 321 to the liquid supply pipe 311 at a constant pressure, and can spray the treatment liquid evenly into the treatment space 2 at its own pressure.

[0098] In some embodiments of the present application, the release treatment device further includes a connecting passage 6 configured to communicate the treatment space 2 with the outer surface of the pressure relief mechanism.

[0099] The connecting passage 6 may be a passage structure for connecting the processing space 2 and the outer surface of the pressure relief mechanism, or may be a passage structure formed in the component structure of the battery. For example, when the processing space 2 is formed by dividing the housing with a partition member, the connecting passage 6 may be a passage provided in the partition member, and when the processing space 2 is formed by the processing box 5, the connecting passage 6 may be a passage provided in the end face of the housing. An additional communicating pipe may be used as the passage structure to connect the processing space 2 and the outer surface of the pressure relief mechanism.

[0100] In some embodiments of the present application, the connecting passage 6 is provided with a liquid blocking structure for blocking the treatment liquid from contacting the unit cell 1.

[0101] The liquid blocking structure may be a structure that allows substances discharged when the single cell 1 experiences thermal runaway to flow into the treatment space 2, and prevents the treatment liquid in the treatment space 2 from flowing into the pressure relief mechanism, thereby preventing contact between the treatment liquid and the single cell 1 and reducing the probability of the single cell 1 shorting out.

[0102] In some embodiments of the present application, as shown in FIG. 6, the liquid blocking structure includes a check valve 61, the inlet of which communicates with the outer surface of the pressure relief mechanism, and the outlet of the check valve 61 communicates with the processing space 2.

[0103] The check valve 61 has an inlet connected to the outer surface of the pressure relief mechanism and an outlet connected to the treatment space 2, so that only the substance flows from the pressure relief mechanism to the treatment space 2, preventing the treatment liquid from flowing into the pressure relief mechanism, preventing the treatment liquid from coming into contact with the single cell 1, and reducing the probability of the single cell 1 being short-circuited.

[0104] In some embodiments of the present application, as shown in FIG. 7, the liquid barrier structure includes a bent portion 62 for blocking the flow of treatment liquid along the connecting passage 6 to the pressure relief mechanism.

[0105] The bent portion 62 may be a portion of a structure bent into an S-shape provided in the connecting passage 6, and this portion of the structure plays a role in blocking the treatment liquid, so that when the treatment liquid flows along the connecting passage 6 to the bent portion 62, it is blocked and does not flow to the pressure relief mechanism.

[0106] In some embodiments of the present application, the single cell 1 includes a first end face and a second end face, a pressure relief mechanism is provided on the first end face, an electrode terminal is provided on the second end face, and the first end face is disposed opposite the connecting passage 6.

[0107] The first end face and the second end face may refer to two opposite end faces of the single cell 1, and the pressure release mechanism and the electrode terminal are provided at both ends of the single cell 1, respectively, so that the electrode terminal can be separated from the pressure release mechanism, reducing the possibility of contact between the treatment liquid and the electrode terminal, and advantageously improving the safety of the battery.

[0108] In some embodiments of the present application, along the penetrating direction of the connecting passage 6, the projection of the connecting passage 6 and the projection of the pressure relief mechanism at least partially overlap, and the pressure relief port of the pressure relief mechanism is at least partially aligned with the connecting port of the connecting passage 6, so that the material released by the pressure relief mechanism from the pressure relief port can flow into the connecting passage 6 via a short path and further enter the treatment space.

[0109] In some embodiments of the present application, the emission treatment device further includes a switch configured to communicate the treatment space 2 with the outer surface of the pressure relief mechanism after being turned on.

[0110] The switch may also refer to a structure for establishing or blocking the communication relationship between the processing space 2 and the outer surface of the pressure relief mechanism, and the switch enables the communication or blocking between the processing space 2 and the pressure relief mechanism to be controlled, and the operator can establish or block the communication between the processing space 2 and the outer surface of the pressure relief mechanism according to the actual situation.

[0111] The switch is turned on when the pressure relief mechanism is activated to release pressure, thereby connecting the processing space 2 to the pressure relief mechanism, and is capable of isolating the processing space 2 from the pressure relief mechanism when the pressure relief mechanism is not activated and remains closed. The switch may be turned on by the released substance after the pressure relief mechanism is released, or may be turned on autonomously by the release mechanism.

[0112] In some embodiments of the present application, the switch includes a weakened portion, which is arranged to provide communication between the processing volume 2 and the outer surface of the pressure relief mechanism after being broken.

[0113] The fragile part may refer to a structure that is easily ruptured when subjected to force, and is separated between the processing space 2 and the outer surface of the pressure relief mechanism. After the pressure relief mechanism is released, the fragile part ruptures due to the released material, thereby connecting the processing space 2 and the outer surface of the pressure relief mechanism.

[0114] In some embodiments having a switch according to the above technical solution, the single battery 1 includes a first end face and a second end face, the first end face is provided with a pressure relief mechanism, the second end face is provided with an electrode terminal, and the first end face is provided opposite the fragile portion.

[0115] The first end face and the second end face may refer to two opposite end faces of the single cell 1, and the pressure release mechanism and the electrode terminal are provided at both ends of the single cell 1, respectively, so that the electrode terminal can be separated from the pressure release mechanism, reducing the possibility of contact between the treatment liquid and the electrode terminal, which is advantageous for improving the safety of the battery.

[0116] In some embodiments of the present application, the projection of the weak portion and the projection of the pressure relief mechanism at least partially overlap along the thickness direction of the weak portion, thereby allowing the pressure relief port of the pressure relief mechanism to be at least partially aligned with the switch formed by the weak portion and allowing the substance released by the pressure relief mechanism from the pressure relief port to act on the switch formed by the weak portion.

[0117] In some embodiments of the present application, the emission treatment device further comprises an exhaust passage 7 capable of communicating the treatment space 2 with the space outside the battery.

[0118] The discharge passage 7 may be a passage structure for connecting the processing space 2 and the external space of the battery, or may be a passage structure formed in the component structure of the battery. For example, when the processing space 2 is formed by dividing the housing with a partition member, the connecting passage 6 may be a passage provided in the partition member, and when the processing space 2 is formed by the processing box 5, the connecting passage 6 may be a passage provided in the end face of the battery box 4. An additional communicating pipe may be used as the passage structure to connect the processing space 2 and the external space of the battery.

[0119] By providing the discharge passage 7, the substance treated in the treatment space 2 is discharged to the external space of the battery through the discharge passage 7, the accumulation of the released substance in the battery is reduced, and the substance treated in the treatment space 2 has a certain parameter reduced. After the certain parameter of the substance is reduced, the possibility of the substance burning is greatly reduced, and the substance is less likely to burn even after it is discharged from the battery, which is advantageous for improving the safety of the battery.

[0120] In some embodiments of the present application, the discharge treatment device further includes a discharge switch 71, which is provided in the discharge passage 7 and configured to communicate the treatment space 2 with the external space of the battery via the discharge passage 7 after the discharge switch 71 is turned on.

[0121] The discharge switch 71 refers to a switch structure provided in the discharge passage 7, which is turned on when the pressure release mechanism activates discharge to communicate the discharge passage 7, and can remain off when the pressure release mechanism does not activate to block the discharge passage 7. The discharge switch 71 may be turned on by the discharged material after the pressure release mechanism is discharged, or may be turned on autonomously by the discharge mechanism, and can be kept on after being operated by an operator.

[0122] In some embodiments of the present application, the switch includes a safety valve, which is in an off state when the pressure relief mechanism is not turned on, and when the pressure relief mechanism is turned on, the safety valve is turned on and the material in the treatment space 2 can be discharged to the external space of the battery through the discharge passage 7.

[0123] In some embodiments of the present application, the cell further comprises a recovery module in communication with the treatment space 2 for recovering the treatment liquid.

[0124] The recovery module may be a module for recovering the processing liquid in the processing space 2, so that the processing liquid in the processing space 2 can be collected for further processing or reuse, and the waste of the processing liquid can be reduced.

[0125] In some embodiments, the recovery module is disposed in the battery, and the recovery module may be connected to the battery box 4 through a connecting member such as a connecting bolt, so that the recovery module is mounted together with the battery box 4 and easy to install. In some embodiments of the present application, the recovery module may be disposed in a power consuming device such as a vehicle, and the recovery module communicates with the processing space 2 through a piping. The recovery module is disposed in a power consuming device such as a vehicle, which can reduce the weight and structural redundancy of the battery. Those skilled in the art can select the installation position of the recovery module according to the actual situation.

[0126] In some embodiments of the present application, as shown in FIG. 8, the release treatment device includes a collection section 51 provided in the treatment space 2, and as shown in FIG. 9, the collection section 51 is positioned so as to protrude toward the bottom of the release treatment device to form a collection groove 52, and the collection section 51 is provided with a collection hole 511 in the protruding direction, and the collection hole 511 connects the collection module to the collection groove 52.

[0127] The recovery section 51 may be a structure provided in the processing space 2, or if the processing space 2 is formed by dividing a housing with a partition member, the recovery section 51 may be a structure formed by the housing, or if the processing space 2 is formed by a processing box 5, the recovery section 51 may be a structure formed by the processing box 5.

[0128] The recovery section 51 protrudes toward the bottom of the discharge treatment device to form a recovery groove 52 so that the treatment liquid in the treatment space 2 collects in the recovery groove 52 by the force of its own weight, which is advantageous for concentrated recovery and treatment of the treatment liquid.

[0129] The collection hole 511 refers to a hole-like structure provided in the collection section 51, and communicates with the collection module and the collection groove 52, allowing the processing liquid collected in the collection groove 52 to pass through the collection module. In some embodiments, the collection hole 511 communicates with the lowest end in the height direction of the collection groove 52, allowing as much of the collected processing liquid to flow from the collection hole 511 as possible.

[0130] In some embodiments of the present application, as shown in FIG. 10 , the recovery module includes a recovery force member 8 and a recovery box 9, where the input end of the recovery force member 8 is connected to the recovery hole 511 and the output end of the recovery force member 8 is connected to the recovery box 9.

[0131] The recovery power member 8 may be a liquid return pump, which extracts the processing liquid from the recovery groove 52 and transports the processing liquid to the recovery box 9, thereby allowing the processing liquid to flow quickly into the recovery box 9 by the recovery pump.

[0132] The recovery box 9 may be a housing structure having a storage space in which the processing liquid is stored, and the recovery power member 8 can transport the processing liquid to the recovery box 9. In some embodiments of the present application, the recovery box 9 may be the same housing as the liquid tank 321, which is advantageous in making the flow of the processing liquid into one cycle and being used again by the discharge treatment device in the liquid tank 321, thereby reducing waste of the processing liquid. In some embodiments of the present application, the recovery box 9 may be in communication with the liquid tank 321 so that the processing liquid recovered by the recovery box 9 flows into the liquid tank 321 and is used again by the discharge treatment device.

[0133] In some embodiments of the present application, the recovery module further includes a filter member 10 in communication between the recovery aperture 511 and the input end of the recovery power member 8 .

[0134] The filter member 10 may be a member having a filtering ability, and by filtering the treatment liquid and separating impurities such as combustible particles in the treatment liquid, it is advantageous to improve the cleanliness of the treatment liquid and maintain the quality of the treatment liquid, thereby maintaining the treatment ability of the treatment liquid against emitted substances and being advantageous for circulating the treatment liquid.

[0135] According to some embodiments of the present application, with reference to Figures 4 to 6, the present application provides a battery, and in some embodiments of the present application, the battery includes a single cell 1 and an emission treatment device, and the emission treatment device includes a treatment space 2 in which a treatment member 3 is provided, and the treatment space 2 formed by covering an end face of a battery box 4 with a treatment box 5 is connected to an outer surface of a pressure relief mechanism. When the cell goes into thermal runaway, the material discharged from the pressure release mechanism enters the treatment space 2 through the connecting passage 6, the spray assembly 31 in the treatment member 3 sprays the treatment liquid into the treatment space 2 through the nozzle 312, the treatment liquid treats the material discharged from the pressure release mechanism into the treatment space, and can reduce the temperature of the material, the concentration of combustible particles and the concentration of combustible gas in the material, and the treated material is discharged to the external space of the battery through the discharge passage 7, and since the material discharged from the pressure release mechanism is treated by the treatment liquid, the temperature, the concentration of combustible particles and the concentration of combustible gas in the material are all reduced, and when the material is discharged to the external space of the battery, the possibility of combustion is greatly reduced, and even when the battery goes into thermal runaway, it is difficult to burn, which is favorable for improving the safety of the battery. An embodiment of the present application provides an electric power consuming device including a battery according to the above technical solution for supplying electric energy. Since the electric power consuming device includes a battery according to the above technical solution, the electric power consuming device has high safety.

[0136] The power consuming device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, an electric scooter, an electric car, a boat, a spacecraft, etc. Here, the electric toy may include a stationary or mobile electric toy, such as a game console, an electric car toy, an electric boat toy, an electric plane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0137] It should be understood that the above embodiments are merely for explaining the technical solution of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art may still modify the technical solutions described in the above embodiments, or make equivalent substitutions for some or all of the technical features therein, and such modifications or substitutions do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the present application, and all of them should be included in the scope of the claims and the specification of the present application. In particular, the technical features described in each embodiment can be arbitrarily combined as long as there is no structural contradiction. The present application is not limited to the specific embodiments disclosed in this specification, and includes all technical solutions included in the claims.

Claims

1. The present invention includes a battery cell having a pressure relief mechanism and a discharge treatment device including a treatment space, the pressure release mechanism is arranged to be capable of releasing a substance inside the cell, the treatment space is disposed so as to be in communication with an outer surface of the pressure relief mechanism such that the substance released by the pressure relief mechanism enters the treatment space; The battery, characterized in that the release treatment device further includes a treatment member provided in the treatment space for treating the substance.

2. The processing member is a spray assembly provided in the processing space and configured to spray a processing liquid into the processing space; 2. The battery of claim 1, further comprising a liquid supply assembly in communication with said spray assembly for delivering said treatment liquid to said spray assembly.

3. The battery described in claim 2, characterized in that the battery includes a battery box, the single battery is placed in the battery box, the release treatment device further includes a treatment box that forms the treatment space therein, the treatment box has an opening that communicates with the treatment space, and the treatment box is covered by an end face of the battery box via the opening.

4. 4. The battery of claim 3, wherein the spray assembly is disposed so as to be directed toward the end surface so as to spray the treatment solution toward the end surface.

5. The battery according to any one of claims 2 to 4, characterized in that the battery includes a housing, the housing is provided with a partition member that divides the housing to form two spaces, one of the two spaces being the processing space and the other of the two spaces being used to place the single battery.

6. 6. The battery according to claim 5, wherein the spray assembly is disposed so as to be directed toward the partition member in order to effect heat exchange between the treatment liquid and the partition member.

7. The battery of any one of claims 3 to 6, characterized in that the spray assembly includes a liquid supply line and a nozzle, the nozzle communicating with the liquid supply line, and the liquid supply line communicating with the liquid supply assembly.

8. 8. The battery according to claim 7, wherein a connection part is provided in the liquid supply pipe line, a connection groove is provided in an inner wall of the treatment space, and the connection part is connected to the connection groove.

9. 9. The battery according to claim 7, wherein the liquid supply pipe is provided in a spiral shape, and a plurality of the nozzles are provided, the plurality of nozzles being provided at equal intervals along the liquid supply pipe.

10. 10. The battery of claim 9, wherein the liquid supply assembly includes a liquid reservoir and a liquid power member in communication between the liquid reservoir and the inlet of the liquid supply line.

11. The battery according to any one of claims 1 to 10, characterized in that the release treatment device further includes a connection passage arranged to allow communication between the treatment space and an outer surface of the pressure release mechanism.

12. 12. The battery according to claim 11, wherein the connecting passage is provided with a liquid blocking structure for blocking contact of the treatment liquid with the unit cells.

13. 13. The battery of claim 12, wherein the liquid barrier structure includes a check valve, the inlet of the check valve communicating with an outer surface of the pressure relief mechanism, and the outlet of the check valve communicating with the treatment space.

14. 14. The battery according to claim 12 or 13, wherein the liquid blocking structure includes a bent portion for blocking the treatment liquid from flowing along the connecting passage to the pressure release mechanism.

15. The battery according to any one of claims 11 to 14, characterized in that the single cell includes a first end surface and a second end surface, the pressure relief mechanism is provided on the first end surface, an electrode terminal is provided on the second end surface, and the first end surface is provided opposite the connecting passage.

16. The battery according to claim 15 , wherein a projection of the connecting passage and a projection of the pressure relief mechanism at least partially overlap along a penetrating direction of the connecting passage.

17. The battery according to any one of claims 1 to 16, characterized in that the release treatment device further includes a switch arranged to communicate between the treatment space and the outer surface of the pressure release mechanism after being turned on.

18. The battery according to claim 17 , wherein the switch includes a fragile portion disposed to allow communication between the processing space and an outer surface of the pressure relief mechanism after the switch is broken.

19. The battery described in claim 18, characterized in that the single cell includes a first end surface and a second end surface, the pressure release mechanism is provided on the first end surface, an electrode terminal is provided on the second end surface, and the first end surface is provided opposite the fragile portion.

20. The battery according to claim 18 or 19, wherein a projection of the weak portion and a projection of the pressure release mechanism at least partially overlap along a thickness direction of the weak portion.

21. 21. The battery according to claim 1, wherein the discharge treatment device further includes a discharge passage that can communicate the treatment space with an external space of the battery.

22. The battery of claim 21, wherein the discharge treatment device further includes a discharge switch provided in the discharge passage, and the discharge switch is arranged to communicate the treatment space with the external space of the battery via the discharge passage after being turned on.

23. 23. The battery according to claim 1, further comprising a recovery module communicating with the treatment space for recovering a treatment solution.

24. The battery described in claim 23, characterized in that the release treatment device includes a recovery section provided in the treatment space, the recovery section being arranged to protrude toward the bottom of the release treatment device to form a recovery groove, and the recovery section being provided with a recovery hole in the protruding direction that connects the recovery module and the recovery groove.

25. The battery according to claim 24 , wherein the recovery module includes a recovery power member and a recovery box, an input end of the recovery power member communicates with the recovery hole, and an output end of the recovery power member communicates with the recovery box.

26. The battery of claim 25 , wherein the recovery module further comprises a filter member communicating between the recovery hole and the input end of the recovery power member.

27. 27. An electrical power consuming device comprising a battery according to any one of claims 1 to 26 for supplying electrical energy thereto.

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