Energy storage battery cabin, energy storage device and thermal runaway treatment method thereof

Abstract

The invention relates to an energy storage battery cabin, an energy storage device and a thermal runaway processing method thereof. The energy storage battery cabin comprises a cabin body, a conveying assembly and a gas treatment assembly, and a containing cavity is formed in the cabin body and used for containing a battery module. The conveying assembly comprises a first input pipeline, a first output pipeline and a first control valve, the first output pipeline is arranged in the cabin, the first input pipeline communicates with the first output pipeline, the first output pipeline is provided with a first output port, and the first output port communicates with the containing cavity. The first control valve is arranged on the first output pipeline, the first input pipeline is used for inputting the inerting agent into the energy storage battery cabin, and the first control valve is used for starting or stopping inputting the inerting agent into the first output pipeline. The gas treatment assembly communicates with the containing cavity and is used for treating the mixed gas exhausted from the containing cavity. The energy storage battery cabin has the advantages of high safety and high automation degree.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage battery equipment, and in particular to an energy storage battery compartment, an energy storage device and a thermal runaway processing method thereof. Background Art

[0002] With the development of energy storage technology, electrochemical energy storage has been widely used. Electrochemical energy storage refers to the process of energy storage, release and management completed by batteries. However, thermal runaway is an inherent property of batteries, and its safety cannot be ignored, especially in large-scale energy storage applications.

[0003] When the battery is operating at a high rate, it will generate a lot of heat, which is prone to thermal runaway. When the battery is in thermal runaway, the temperature of the battery rises rapidly and a lot of smoke is generated. If it is not handled in time, it will burn or explode, seriously endangering production safety, and has the defect of great safety hazards. Summary of the invention

[0004] Based on this, it is necessary to provide an energy storage battery compartment, an energy storage device and a thermal runaway processing method thereof to address the problem of great safety hazards of energy storage devices.

[0005] In a first aspect, an energy storage battery compartment is provided, comprising:

[0006] A cabin body, wherein a receiving cavity is provided inside the cabin body, and the receiving cavity is used to place a battery module;

[0007] A conveying assembly, the conveying assembly comprising a first input pipeline, a first output pipeline and a first control valve, the first output pipeline is arranged in the cabin body, the first input pipeline is communicated with the first output pipeline, the first output pipeline is provided with a first output port, the first output port is arranged in the accommodating chamber, and the first output port is communicated with the accommodating chamber, the first control valve is arranged in the first output pipeline, the first input pipeline is used to input the inerting agent into the energy storage battery cabin, and the first control valve is used to open or close the input of the inerting agent into the first output pipeline; and,

[0008] A gas processing component is communicated with the accommodating chamber, and the gas processing component is used to process the mixed gas discharged from the accommodating chamber.

[0009] In one embodiment, the gas processing component includes a gas exhaust pipe, a second control valve and an abnormal gas processor, the cabin body is provided with an exhaust port, the exhaust port is communicated with the accommodating chamber, one end of the gas exhaust pipe is installed at the exhaust port, the other end of the gas exhaust pipe is connected to the abnormal gas processor, and the second control valve is arranged in the gas exhaust pipe or the exhaust port.

[0010] In one embodiment, the conveying assembly further includes a second input pipe, a second output pipe and a third control valve, the second input pipe and the second output pipe are arranged in the cabin body, the second input pipe is communicated with the second output pipe, the second output pipe is provided with a second output port, and the second output port is arranged in the accommodating chamber, and the second output port is communicated with the accommodating chamber, the third control valve is arranged in the second output pipe, the second input pipe is used to input the inerting agent into the energy storage battery compartment, and the third control valve is used to open or close the input of the inerting agent to the second output pipe.

[0011] In one embodiment, the cabin body further includes a first cover plate, a second cover plate, a first drive unit and a second drive unit, the cabin body is provided with an air inlet and an air outlet, the air inlet and the air outlet are both connected to the accommodating cavity, the first drive unit is installed on the cabin body, the output end of the first drive unit is connected to the first cover plate, and the first drive unit is used to drive the first cover plate to open or close the air inlet; the second drive unit is installed on the cabin body, the output end of the second drive unit is connected to the second cover plate, and the second drive unit is used to drive the second cover plate to open or close the air outlet.

[0012] In one embodiment, the cabin body also includes a third cover plate and a third driving unit. The cabin body is provided with an abnormal gas inspection port, which is connected to the accommodating cavity. The third driving unit is installed on the cabin body, and the output end of the third driving unit is connected to the third cover plate. The third driving unit is used to drive the third cover plate to open or close the abnormal gas inspection port.

[0013] In one embodiment, the first input pipe and the second input pipe are respectively arranged at two ends of the cabin, the first output pipe and the second output pipe are connected, and the first output port and the second output port correspond to safety valve settings of different battery modules.

[0014] In one of the embodiments, the energy storage battery compartment further includes an oxygen concentration sensor and a pressure sensor, and the pressure sensor and the oxygen concentration sensor are both disposed in the accommodating cavity.

[0015] In one of the embodiments, the energy storage battery compartment further includes a mounting bracket, which is disposed in the accommodating cavity and is used to install a battery module.

[0016] In a second aspect, an energy storage device is provided, comprising a battery module and an energy storage battery compartment as described in any one of the above embodiments, wherein the battery module is installed in a receiving cavity of the energy storage battery compartment.

[0017] In a third aspect, a method for handling thermal runaway of an energy storage device is provided, which is applicable to the energy storage device described in the above embodiment, and comprises the following steps:

[0018] When thermal runaway occurs in the battery module of the energy storage device, the air inlet and outlet of the cabin are closed;

[0019] The first control valve of the energy storage battery compartment is opened, and the first output pipe introduces an inertizing agent into the accommodating cavity;

[0020] The pressure in the cabin is monitored by a pressure sensor. If the pressure in the cabin reaches a critical pressure, the second control valve and the abnormal gas processor are opened. If the pressure in the cabin is less than the critical pressure, the second control valve and the abnormal gas processor are closed.

[0021] The oxygen concentration in the cabin is monitored by an oxygen concentration sensor. If the oxygen concentration in the cabin is higher than the standard value, the inerting agent is continuously sprayed into the accommodating cavity, and the spraying flow rate of the inerting agent is slowed down as the oxygen concentration decreases.

[0022] When the oxygen concentration in the cabin is equal to the standard value, close the first control valve.

[0023] The above-mentioned energy storage battery compartment, energy storage device and thermal runaway treatment method thereof, by setting a conveying component in the compartment where the battery module is placed, inputting the inerting agent into the first input pipe, when the battery module has thermal runaway, opening the first control valve, so that the inerting agent is input into the first output pipe, and then spraying the inerting agent into the accommodation chamber of the compartment through the first output port to offset the dilution flue gas, so as to prevent the situation from further deteriorating. After a large amount of inerting agent is sprayed, high pressure will be generated in the accommodation chamber, at this time, the gas treatment component is turned on, and the mixed gas in the accommodation chamber is harmlessly treated and then discharged, thereby automatically completing the thermal runaway treatment of the energy storage device, avoiding the deterioration of the situation and causing combustion or explosion, and having the advantages of high safety and high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the front view structure of the energy storage device described in an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the side structure of the energy storage device described in an embodiment of the present application.

[0026] Figure 3 This is a schematic diagram of the top view of the energy storage device described in an embodiment of the present application.

[0027] Figure numbers: 10, energy storage battery compartment; 20, battery module; 21, safety valve;

[0028] 100, cabin; 100A, accommodating cavity; 100B, air inlet; 100C, air outlet; 100D, exhaust port; 100E, abnormal gas inspection port;

[0029] 200, conveying assembly; 210, first input pipeline; 220, first output pipeline; 220A, first output port; 230, first control valve; 240, second input pipeline; 250, second output pipeline; 250A, second output port; 260, third control valve;

[0030] 300, gas processing assembly; 310, gas exhaust pipeline; 320, abnormal gas processor; 330, second control valve;

[0031] 400. Oxygen concentration sensor; 500. Pressure sensor; 600. Mounting bracket. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0038] See also Figure 1 and Figure 2 , Figure 1 and Figure 2The schematic diagram of the structure of the energy storage battery cabin in one embodiment of the present application is shown. The energy storage battery cabin provided in one embodiment of the present application includes a cabin 100, a conveying assembly 200 and a gas processing assembly 300. The cabin 100 is provided with a receiving chamber 100A, and the receiving chamber 100A is used to place the battery module 20. The conveying assembly 200 includes a first input pipeline 210, a first output pipeline 220 and a first control valve 230. The first input pipeline 210 and the first output pipeline 220 are arranged in the cabin 100. The first input pipeline 210 is connected with the first output pipeline 220. The first output pipeline 220 is provided with a first output port 220A. The first output port 220A is arranged in the receiving chamber 100A, and the first output port 220A is connected with the receiving chamber 100A. Specifically, the first input pipeline 210 is installed at the upper end of the cabin 100, the first output pipeline 220 is arranged in the receiving chamber 100A, and the input end of the first output pipeline 220 is connected with the first input pipeline 210. The first control valve 230 is arranged on the first output pipe 220, and the input end of the first input pipe 210 is connected to the device for inputting the inert agent. The first input pipe 210 is used to input the inert agent into the energy storage battery compartment, and the first control valve 230 is used to open or close the input of the inert agent into the first output pipe 220. Specifically, the first output port 220A includes a plurality of ports, and the first output port 220A is a nozzle, and the inert agent is sprayed out through the first output port 220A. The gas processing assembly 300 is connected to the accommodating chamber 100A, and the gas processing assembly 300 is used to process the mixed gas discharged from the accommodating chamber 100A. Among them, the mixed gas includes the flue gas sprayed from the battery module 20 plus the inert agent.

[0039] In an optional embodiment, the inertizing agent is carbon dioxide or nitrogen, both of which have the ability to suppress the environment to maintain combustion or explosion, and can be selected as the inertizing agent. In other embodiments, the inertizing agent can also be other substances that have the ability to suppress the environment to maintain combustion or explosion, and the present application is not limited thereto.

[0040] The energy storage battery compartment described in the embodiment of the present application places the battery module 20 in the receiving chamber 100A of the cabin 100, and sets a conveying assembly 200 in the cabin 100 to input the inert agent into the first input pipe 210. When the battery module 20 has thermal runaway, the first control valve 230 on the first output pipe 220 is opened to input the inert agent into the first output pipe 220, and then the inert agent is sprayed into the receiving chamber 100A of the cabin 100 through the first output port 220A to offset the dilution flue gas, inhibit the battery module 20 from burning or exploding, and avoid further deterioration of the situation. Furthermore, after a large amount of inert agent is sprayed, a high pressure will be generated in the receiving chamber 100A. At this time, it is necessary to open the gas treatment assembly 300 to perform harmless treatment on the mixed gas in the receiving chamber 100A and then discharge it, thereby automatically completing the thermal runaway treatment of the energy storage device, which can avoid deterioration of the situation and causing combustion or explosion.

[0041] The energy storage battery compartment described in the embodiment of the present application has a conveying assembly 200 disposed in the compartment body 100. When the battery module 20 has thermal runaway, the first input pipe 210 and the first output pipe 220 automatically spray the inerting agent into the accommodating chamber 100A, thereby suppressing the combustion or explosion of the battery module 20. Finally, the mixed gas is automatically processed and discharged through the gas processing assembly 300, and has the advantages of high safety and high degree of automation.

[0042] Combination Figure 3 As shown, Figure 3 Another structural schematic diagram of the energy storage battery cabin in an embodiment of the present application is shown. In some embodiments, the gas processing assembly 300 includes a gas exhaust pipe 310, a second control valve 330 and an abnormal gas processor 320. The cabin body 100 is provided with an exhaust port 100D, and the exhaust port 100D is connected to the accommodating chamber 100A. One end of the gas exhaust pipe 310 is installed at the exhaust port 100D, and the other end of the gas exhaust pipe 310 is connected to the abnormal gas processor 320. The second control valve 330 is arranged in the gas exhaust pipe 310 or the exhaust port 100D. By setting up the gas exhaust pipe 310 to connect the exhaust port 100D on the cabin 100 respectively, when the inerting agent is sprayed into the accommodating chamber 100A, the inerting agent and the flue gas are mixed into abnormal gas. The more the inerting agent is input, the greater the gas pressure in the accommodating chamber 100A. At this time, the second control valve 330 is opened to transport the abnormal gas in the accommodating chamber 100A to the abnormal gas processor 320 through the gas exhaust pipe 310, and the abnormal gas is purified and then discharged to achieve the purpose of processing the abnormal gas. The whole process can be completed automatically, which has the advantage of a high degree of automation.

[0043] In an optional embodiment, if Figure 1 and Figure 2As shown, the conveying component 200 also includes a second input pipeline 240, a second output pipeline 250 and a third control valve 260. The second input pipeline 240 and the second output pipeline 250 are arranged in the cabin 100, and the second input pipeline 240 is communicated with the second output pipeline 250. The second output pipeline 250 is provided with a second output port 250A, and the second output port 250A is arranged in the accommodating chamber 100A, and the second output port 250A is communicated with the accommodating chamber 100A. The third control valve 260 is arranged in the second output pipeline 250. The second input pipeline 240 is used to input the inert agent into the energy storage battery compartment, and the third control valve 260 is used to open or close the input of the inert agent to the second output pipeline 250. The conveying assembly 200 is also provided with a second input pipe 240, so that the second input pipe 240 also passes the inertizing agent, and the third control valve 260 can control the inertizing agent to be transmitted to the second output pipe 250. When the battery module 20 has thermal runaway, the second output pipe 250 can transmit the inertizing agent to the accommodating chamber 100A through the second output port 250A, thereby achieving the purpose of suppressing the thermal runaway. When multiple battery modules 20 have thermal runaway, the inertizing agent may not be sufficient to suppress the thermal runaway if only the first output pipe 220 is used to input the inertizing agent. The inertizing agent is input through the first output pipe 220 and the second output pipe 250 at the same time, which can increase the flow rate in the accommodating chamber 100A, so that the accommodating chamber 100A can achieve the effect of rapid inertization, and multiple battery modules 20 can be prevented from burning or exploding, which has the advantage of high safety performance.

[0044] In an optional embodiment, the cabin 100 further includes a first cover plate, a second cover plate, a first drive unit and a second drive unit. The cabin 100 is provided with an air inlet 100B and an air outlet 100C. The air inlet 100B and the air outlet 100C are both connected to the accommodating chamber 100A. The first drive unit is installed on the cabin 100, and the output end of the first drive unit is connected to the first cover plate. The first drive unit is used to drive the first cover plate to open or close the air inlet 100B; the second drive unit is installed on the cabin 100, and the output end of the second drive unit is connected to the second cover plate. The second drive unit is used to drive the second cover plate to open or close the air outlet 100C. The first drive unit is set to drive the first cover plate to move, thereby opening or closing the air inlet 100B, and the second drive unit drives the second cover plate to move, thereby opening or closing the air outlet 100C. When the accommodating chamber 100A operates normally, the air inlet 100B and the air outlet 100C are in a normally open state, so that the accommodating chamber 100A is ventilated and heat is dissipated. When thermal runaway occurs in the accommodating chamber 100A, the first cover plate and the second cover plate close the air inlet 100B and the air outlet 100C respectively, so that the accommodating chamber 100A becomes a closed chamber, so that the inertizing agent is added to the conveying assembly 200 to allow the accommodating chamber 100A to be inerted. Furthermore, the air inlet 100B is provided with an air inlet, and the air outlet 100C is provided with an air outlet, through which the air can be respectively input and output from the accommodating chamber 100A, thereby driving the gas flow in the accommodating chamber 100A and improving the heat dissipation capacity of the energy storage battery compartment.

[0045] In an optional embodiment, the cabin 100 further includes a third cover and a third drive unit. The cabin 100 is provided with an abnormal gas inspection port 100E, the abnormal gas inspection port 100E is communicated with the accommodating chamber 100A, the third drive unit is installed on the cabin 100, the output end of the third drive unit is connected to the third cover, and the third drive unit is used to drive the third cover to open or close the abnormal gas inspection port 100E. By providing the abnormal gas inspection port 100E, when thermal runaway occurs, the third drive unit can control the third cover to open the abnormal gas inspection port 100E, and the staff can check the situation in the accommodating chamber 100A through the abnormal gas inspection port 100E, so as to be prepared to deal with it and avoid the situation from getting worse.

[0046] In an optional embodiment, if Figure 1 and Figure 2As shown, the first input pipeline 210 and the second input pipeline 240 are respectively arranged at the two ends of the cabin 100, the first output pipeline 220 and the second output pipeline 250 are connected, and the first output port 220A and the second output port 250A are arranged corresponding to the safety valves 21 of different battery modules 20. By connecting the first output pipeline 220 and the second output pipeline 250 together, the delivery range of the inert agent can be increased. Moreover, the first output port 220A and the second output port 250A are arranged corresponding to the safety valve 21 of the battery module 20, so that the inert agent can be directly sprayed onto the safety valve 21, so that the inert agent directly acts on the gas sprayed from the safety valve 21, thereby improving the efficiency of suppressing thermal runaway.

[0047] In an optional embodiment, if Figure 2 As shown, the energy storage battery compartment 10 also includes an oxygen concentration sensor 400 and a pressure sensor 500, and the pressure sensor 500 and the oxygen concentration sensor 400 are both arranged in the accommodating chamber 100A. Specifically, the oxygen concentration sensor 400 is arranged on one side of the air outlet 100C. By setting the oxygen concentration sensor 400 and the pressure sensor 500, the oxygen concentration data and the pressure data in the accommodating chamber 100A are detected respectively. When thermal runaway occurs in the battery module 20, the inerting condition in the accommodating chamber 100A can be judged by the oxygen concentration data. When the oxygen concentration data is higher, it proves that the inerting effect is not up to standard, and it is necessary to maintain the state of high-speed injection of the inerting agent. If the oxygen concentration data is getting lower and lower, the injection speed of the inerting agent can be adjusted accordingly. When the pressure sensor 500 detects that the pressure data in the accommodating chamber 100A is above the critical pressure, the second control valve 330 and the abnormal gas processor 320 are opened to discharge part of the abnormal gas in the accommodating chamber 100A. When the pressure data is reduced to the critical pressure, the second control valve 330 and the abnormal gas processor 320 can be closed to avoid excessive pressure from damaging the cabin 100. The critical pressure refers to the maximum pressure that the cabin 100 can withstand.

[0048] In an optional embodiment, if Figure 2 As shown, the energy storage battery compartment 10 further includes a mounting bracket 600, which is disposed in the accommodating cavity 100A and is used to mount the battery module 20. By providing the mounting bracket 600, the battery module 20 can be securely mounted in the compartment 100.

[0049] On the other hand, the present application also provides an energy storage device, such as Figure 1 and Figure 2 As shown, the energy storage device includes a battery module 20 and an energy storage battery compartment 10 as described in any of the above embodiments, and the battery module 20 is installed in the accommodating cavity 100A of the energy storage battery compartment 10.

[0050] The energy storage device described in the embodiment of the present application has a conveying assembly 200 provided in the energy storage battery compartment 10. When the battery module 20 undergoes thermal runaway, the first input pipe 210 and the first output pipe 220 automatically spray the inerting agent into the accommodating cavity 100A of the compartment 100, thereby suppressing the combustion or explosion of the battery module 20. Finally, the abnormal gas is automatically processed and discharged through the gas processing assembly 300, which has the advantages of high safety and high degree of automation.

[0051] In an optional embodiment, the energy storage device further includes a controller, and the battery module 20, the first control valve 230, the third control valve 260, the second control valve 330, the abnormal gas processor 320, the oxygen concentration sensor 400, and the pressure sensor 500 are all electrically connected to the controller. The controller can monitor the status of the battery module 20 in real time, and when thermal runaway occurs, quickly control each component to suppress thermal runaway, thereby improving the safety of the energy storage device.

[0052] On the other hand, the present application also provides a method for handling thermal runaway of an energy storage device, which is applicable to the energy storage device described in any of the above embodiments. The method for handling thermal runaway of an energy storage device comprises the following steps:

[0053] S100: When thermal runaway occurs in the battery module 20 in the energy storage device, the air inlet 100B and the air outlet 100C of the cabin 100 are closed;

[0054] S200: Open the first control valve 230 of the energy storage battery compartment 10, and let the first output pipe 220 pass the inert agent into the accommodating cavity 100A;

[0055] S300: Using the pressure sensor 500 to monitor the pressure in the cabin 100, if the cabin pressure reaches the critical pressure, the second control valve 330 and the abnormal gas processor 320 are opened, if the cabin pressure is less than the critical pressure, the second control valve 330 and the abnormal gas processor 320 are closed;

[0056] S400: using the oxygen concentration sensor 400 to monitor the oxygen concentration in the cabin 100, if the oxygen concentration in the cabin is higher than the standard value, keep spraying the inerting agent into the accommodating chamber 100A, and as the oxygen concentration decreases, slow down the spraying flow rate of the inerting agent;

[0057] S500: When the oxygen concentration in the cabin is equal to the standard value, the first control valve 230 is closed.

[0058] The method for handling thermal runaway of an energy storage device described in the embodiment of the present application inputs an inertizing agent through the conveying component 200 when thermal runaway occurs in the battery module 20, and the first input pipe 210 and the first output pipe 220 automatically spray the inertizing agent into the accommodating cavity 100A of the cabin 100, thereby suppressing combustion or explosion of the battery module 20, and finally automatically handles and discharges abnormal gases through the gas processing component 300, which has the advantages of high safety and high degree of automation.

[0059] The energy storage battery compartment, energy storage device and thermal runaway treatment method thereof described in the embodiments of the present application have the following beneficial effects:

[0060] 1. By setting a conveying component 200 in the cabin 100, when the battery module 20 has thermal runaway, the first input pipe 210 and the first output pipe 220 automatically spray the inert agent into the accommodating chamber 100A, thereby suppressing the combustion or explosion of the battery module 20. Finally, the abnormal gas is automatically processed and discharged through the gas processing component 300, which has the advantages of high safety and high degree of automation.

[0061] 2. After the inerting agent is sprayed into the accommodating chamber 100A, the inerting agent and the flue gas are mixed into abnormal gas. The more the inerting agent is input, the greater the gas pressure in the accommodating chamber 100A. At this time, the second control valve 330 is opened to allow the abnormal gas in the accommodating chamber 100A to be transported to the abnormal gas processor 320 through the gas exhaust pipe 310. The abnormal gas is purified and then discharged, thereby achieving the purpose of processing the abnormal gas. The entire process can be completed automatically, which has the advantage of a high degree of automation.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An energy storage battery compartment, characterized in that: include: A cabin body (100), wherein a receiving cavity (100A) is provided inside the cabin body (100), and the receiving cavity (100A) is used to place a battery module (20); A conveying assembly (200), the conveying assembly (200) comprising a first input pipeline (210), a first output pipeline (220) and a first control valve (230), the first output pipeline (220) being arranged in the cabin (100), the first input pipeline (210) being in communication with the first output pipeline (220), the first output pipeline (220) being provided with a first output port (220A), the first output port (220A) being arranged in the accommodating chamber (100A), and the first output port (220A) being in communication with the accommodating chamber (100A), the first control valve (230) being arranged in the first output pipeline (220), the first input pipeline (210) being used to input an inertizing agent into the energy storage battery cabin, and the first control valve (230) being used to open or close the input of the inertizing agent into the first output pipeline (220); and A gas processing component (300), the gas processing component (300) being in communication with the accommodating chamber (100A), the gas processing component (300) being used to process the mixed gas exhausted from the accommodating chamber (100A).

2. The energy storage battery compartment according to claim 1, characterized in that: The gas processing assembly (300) comprises a gas exhaust pipe (310), a second control valve (330) and an abnormal gas processor (320); the cabin (100) is provided with an exhaust port (100D), the exhaust port (100D) is communicated with the accommodating chamber (100A), one end of the gas exhaust pipe (310) is installed on the exhaust port (100D), the other end of the gas exhaust pipe (310) is connected to the abnormal gas processor (320), and the second control valve (330) is arranged on the gas exhaust pipe (310) or the exhaust port (100D).

3. The energy storage battery compartment according to claim 1, characterized in that: The conveying assembly (200) further comprises a second input pipeline (240), a second output pipeline (250) and a third control valve (260); the second input pipeline (240) and the second output pipeline (250) are arranged in the cabin (100); the second input pipeline (240) is communicated with the second output pipeline (250); the second output pipeline (250) is provided with a second output port (250A); the second output port (250A) is arranged in the accommodating chamber (100A), and the second output port (250A) is communicated with the accommodating chamber (100A); the third control valve (260) is arranged in the second output pipeline (250); the second input pipeline (240) is used to input the inertizing agent into the energy storage battery cabin; the third control valve (260) is used to open or close the input of the inertizing agent into the second output pipeline (250).

4. The energy storage battery compartment according to claim 1, characterized in that: The cabin (100) further comprises a first cover plate, a second cover plate, a first drive unit and a second drive unit. The cabin (100) is provided with an air inlet (100B) and an air outlet (100C). Both the air inlet (100B) and the air outlet (100C) are in communication with the accommodating cavity (100A). The first drive unit is mounted on the cabin (100), and an output end of the first drive unit is connected to the first cover plate. The first drive unit is used to drive the first cover plate to open or close the air inlet (100B). The second drive unit is mounted on the cabin (100), and an output end of the second drive unit is connected to the second cover plate. The second drive unit is used to drive the second cover plate to open or close the air outlet (100C).

5. The energy storage battery compartment according to claim 1, characterized in that: The cabin body (100) further comprises a third cover plate and a third drive unit. The cabin body (100) is provided with an abnormal gas inspection port (100E), the abnormal gas inspection port (100E) is in communication with the accommodating cavity (100A), the third drive unit is mounted on the cabin body (100), an output end of the third drive unit is connected to the third cover plate, and the third drive unit is used to drive the third cover plate to open or close the abnormal gas inspection port (100E).

6. The energy storage battery compartment according to claim 3, characterized in that: The first input pipe (210) and the second input pipe (240) are respectively arranged at two ends of the cabin (100), the first output pipe (220) and the second output pipe (250) are connected, and the first output port (220A) and the second output port (250A) are arranged corresponding to the safety valves (21) of different battery modules (20).

7. The energy storage battery compartment according to claim 1, characterized in that: The energy storage battery compartment (10) further comprises an oxygen concentration sensor (400) and a pressure sensor (500), wherein the pressure sensor (500) and the oxygen concentration sensor (400) are both arranged in the accommodating cavity (100A).

8. The energy storage battery compartment according to claim 1, characterized in that: The energy storage battery compartment (10) further comprises a mounting bracket (600), wherein the mounting bracket (600) is arranged in the accommodating cavity (100A), and the mounting bracket (600) is used to mount the battery module (20).

9. An energy storage device, characterized in that: It comprises a battery module (20) and an energy storage battery compartment (10) as claimed in any one of claims 1 to 8, wherein the battery module (20) is installed in a receiving cavity (100A) of the energy storage battery compartment (10).

10. A method for processing thermal runaway of an energy storage device, applicable to the energy storage device according to claim 9, characterized in that: The method for processing thermal runaway of an energy storage device comprises the following steps: When a battery module (20) in the energy storage device experiences thermal runaway, the air inlet (100B) and the air outlet (100C) of the cabin (100) are closed; The first control valve (230) of the energy storage battery compartment (10) is opened, and the first output pipe (220) allows an inertizing agent to flow into the accommodating chamber (100A); Using a pressure sensor (500) to monitor the pressure in the cabin (100), if the pressure in the cabin reaches a critical pressure, opening the second control valve (330) and the abnormal gas processor (320), and if the pressure in the cabin is less than the critical pressure, closing the second control valve (330) and the abnormal gas processor (320); Using an oxygen concentration sensor (400) to monitor the oxygen concentration in the cabin (100), if the oxygen concentration in the cabin is higher than a standard value, continue to spray the inert agent into the accommodating chamber (100A), and as the oxygen concentration decreases, slow down the spraying flow rate of the inert agent; When the oxygen concentration in the cabin is equal to the standard value, the first control valve (230) is closed.

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