Energy storage battery compartment, energy storage device, and method for handling thermal runaway of energy storage device

Abstract

An energy storage battery compartment, an energy storage device, and a method for handling thermal runaway of the energy storage device. The energy storage battery compartment comprises a compartment body (100), a delivery assembly (200), and a gas treatment assembly (300). The compartment body (100) is internally provided with an accommodating cavity (100A), and the accommodating cavity (100A) is configured to place battery modules (20). The delivery assembly (200) comprises a first input pipe (210), a first output pipe (220), and a first control valve (230); the first output pipe (220) is arranged in the compartment body (100); the first input pipe (210) is communicated with the first output pipe (220); the first output pipe (220) is provided with a first output port (220A); and the first output port (220A) is communicated with the accommodating cavity (100A). The first control valve (230) is arranged in the first output pipe (220); the first input pipe (210) is configured to input an inerting agent into the energy storage battery compartment; and the first control valve (230) is configured to start or stop the input of the inerting agent into the first output pipe (220). The gas treatment assembly (300) is communicated with the accommodating cavity (100A), and the gas treatment assembly (300) is configured to treat a mixed gas discharged from the accommodating cavity (100A).

Description

Energy storage battery cabin, energy storage device and energy storage device thermal runaway processing method

[0001] The present application claims priority to the Chinese patent application No. 202411312397.8, filed on September 20, 2024, to the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of energy storage battery equipment, for example, to an energy storage battery cabin, an energy storage device and an energy storage device thermal runaway processing method. BACKGROUND

[0003] With the development of energy storage technology, electrochemical energy storage has been widely used. Electrochemical energy storage refers to the energy storage, release and management process completed by the battery. However, thermal runaway is an inherent property of the battery, and its safety cannot be ignored, especially in large-scale energy storage applications.

[0004] When the battery is in a high-rate working state, a large amount of heat will be generated, and thermal runaway is likely to occur at this time. When the battery is in thermal runaway, the temperature of the battery rises rapidly and a large amount of smoke is generated. If not handled in time, combustion or explosion will occur, which will seriously endanger production safety and have the defect of great safety hazard. SUMMARY

[0005] The present application provides an energy storage battery cabin, an energy storage device and an energy storage device thermal runaway processing method to solve the problem of great safety hazard of the energy storage device.

[0006] In a first aspect, an energy storage battery cabin is provided, comprising:

[0007] a cabin body, an accommodation cavity is arranged in the interior of the cabin body, and the accommodation cavity is configured to place a battery module;

[0008] a conveying assembly, 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 body, the first input pipeline is in communication with the first output pipeline, the first output pipeline is provided with a first output port, the first output port is arranged in the accommodation cavity, and the first output port is in communication with the accommodation cavity, the first control valve is arranged in the first output pipeline, the first input pipeline is configured to input an inerting agent into the energy storage battery cabin, and the first control valve is configured to open or close the input of the inerting agent into the first output pipeline; and

[0009] a gas treatment assembly, the gas treatment assembly is in communication with the accommodation cavity, and the gas treatment assembly is configured to treat mixed gas discharged from the accommodation cavity.

[0010] In some embodiments, the gas treatment assembly comprises a gas discharge pipe, a second control valve and an abnormal gas processor, the cabin is provided with an exhaust port, the exhaust port is communicated with the accommodating cavity, a first end of the gas discharge pipe is installed at the exhaust port, a second end of the gas discharge pipe is connected with the abnormal gas processor, and the second control valve is arranged in the gas discharge pipe or the exhaust port.

[0011] In some embodiments, the conveying assembly further comprises 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, the second input pipe is communicated with the second output pipe, the second output pipe is provided with a second output port, the second output port is arranged in the accommodating cavity and communicated with the accommodating cavity, and the third control valve is arranged in the second output pipe.

[0012] In some embodiments, the cabin further comprises a first cover plate, a second cover plate, a first driving unit and a second driving unit, the cabin is provided with an air inlet and an air outlet, the air inlet and the air outlet are communicated with the accommodating cavity, the first driving unit is installed in the cabin, an output end of the first driving unit is connected with the first cover plate, and the first driving unit is arranged to drive the first cover plate to open or close the air inlet; the second driving unit is installed in the cabin, an output end of the second driving unit is connected with the second cover plate, and the second driving unit is arranged to drive the second cover plate to open or close the air outlet.

[0013] In some embodiments, the cabin further comprises a third cover plate and a third driving unit, the cabin is provided with an abnormal gas inspection port, the abnormal gas inspection port is communicated with the accommodating cavity, the third driving unit is installed in the cabin, an output end of the third driving unit is connected with the third cover plate, and the third driving unit is arranged to drive the third cover plate to open or close the abnormal gas inspection port.

[0014] In some embodiments, 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 communicated, and the first output port and the second output port are arranged corresponding to safety valves of different battery modules.

[0015] In some embodiments, the energy storage battery cabin further comprises an oxygen concentration sensor and a pressure sensor, and the pressure sensor and the oxygen concentration sensor are arranged in the accommodating cavity.

[0016] In some embodiments, the energy storage battery cabin further comprises a mounting bracket arranged in the accommodating cavity, and the mounting bracket is arranged to mount the battery module.

[0017] In a second aspect, an energy storage device is provided, comprising a battery module and the energy storage battery cabin according to any one of the above embodiments, and the battery module is arranged in the accommodating cavity of the energy storage battery cabin.

[0018] In a third aspect, a thermal runaway processing method of an energy storage device is provided, and the method is applicable to the energy storage device according to the above embodiments, and the method comprises:

[0019] When the battery module in the energy storage device experiences thermal runaway, the air inlet and the air outlet of the cabin body are closed;

[0020] The first control valve of the energy storage battery cabin is opened, and the first output pipeline introduces the inerting agent into the accommodating cavity;

[0021] The pressure sensor is used to monitor the pressure in the cabin body, and in response to the cabin pressure reaching a critical pressure, the second control valve and the abnormal gas processor are opened, and in response to the cabin pressure being less than the critical pressure, the second control valve and the abnormal gas processor are closed;

[0022] The oxygen concentration sensor is used to monitor the oxygen concentration in the cabin body, and in response to the cabin oxygen concentration being higher than a standard value, the inerting agent is continuously injected into the accommodating cavity, and the injection flow rate of the inerting agent is slowed down as the oxygen concentration decreases;

[0023] In response to the cabin oxygen concentration being equal to the standard value, the first control valve is closed. BRIEF DESCRIPTION OF DRAWINGS

[0024] FIG. 1 is a front view structural schematic diagram of the energy storage device according to the embodiments of the present application;

[0025] FIG. 2 is a side view structural schematic diagram of the energy storage device according to the embodiments of the present application;

[0026] FIG. 3 is a top view structural schematic diagram of the energy storage device according to the embodiments of the present application.

[0027] REFERENCE NUMERALS:

[0028] 10, energy storage battery cabin; 20, battery module; 21, safety valve;

[0029] 100, cabin body; 100A, accommodating cavity; 100B, air inlet; 100C, air outlet; 100D, exhaust port; 100E, abnormal gas inspection port;

[0030] 200, delivery assembly; 210, first input pipe; 220, first output pipe; 220A, first output port; 230, first control valve; 240, second input pipe; 250, second output pipe; 250A, second output port; 260, third control valve;

[0031] 300, gas treatment assembly; 310, gas discharge pipe; 320, abnormal gas processor; 330, second control valve;

[0032] 400, oxygen concentration sensor; 500, pressure sensor; 600, mounting bracket. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application will now be described in connection with the appended drawings. In the following description, well-known principles and techniques have not been described in detail in order not to unnecessarily obscure the present application. The present application can be implemented in numerous ways, including as a process, an apparatus, a system, a composition of matter, a computer program product, or a processor among other ways.

[0034] In the description of the present application, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0035] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., shall be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the meaning of the above terms in this application as appropriate.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or that the first feature is at a lower horizontal level than the second feature.

[0038] If an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0039] Referring to FIG. 1 and FIG. 2, FIG. 1 and FIG. 2 show a structural schematic diagram of the energy storage battery cabin in an embodiment of the present application. The energy storage battery cabin provided by the embodiment of the present application comprises a cabin body 100, a conveying assembly 200 and a gas treatment assembly 300. The cabin body 100 is internally provided with a containing cavity 100A, and the containing cavity 100A is arranged to place a battery module 20. The conveying assembly 200 comprises 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 body 100. The first input pipeline 210 is in communication 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 containing cavity 100A and is in communication with the containing cavity 100A. Exemplarily, the first input pipeline 210 is installed at the upper end of the cabin body 100. The first output pipeline 220 is arranged in the containing cavity 100A, and the input end of the first output pipeline 220 is in communication with the first input pipeline 210. The first control valve 230 is arranged in the first output pipeline 220. The input end of the first input pipeline 210 is connected with a device for inputting inerting agent. The first input pipeline 210 is arranged to input the inerting agent into the energy storage battery cabin. The first control valve 230 is arranged to open or close the input of the inerting agent into the first output pipeline 220. Exemplarily, the first output port 220A comprises a plurality of output ports, and the first output port 220A is a spray head. The inerting agent is sprayed out through the first output port 220A. The gas treatment assembly 300 is in communication with the containing cavity 100A. The gas treatment assembly 300 is arranged to treat mixed gas discharged from the containing cavity 100A. The mixed gas comprises the smoke sprayed out by the battery module 20 and the inerting agent.

[0040] In an optional embodiment, the inerting agent is carbon dioxide or nitrogen. Carbon dioxide and nitrogen both have the ability to inhibit the environment from maintaining combustion or explosion, and can be selected as the inerting agent. In other embodiments, the inerting agent can also be other substances having the ability to inhibit the environment from maintaining combustion or explosion.

[0041] The energy storage battery cabin provided by the embodiment of the present application is used for placing the battery module 20 in the accommodating cavity 100A of the cabin body 100, and the delivery assembly 200 is arranged on the cabin body 100 to input the inerting agent into the first input pipeline 210. When the battery module 20 is in thermal runaway, the first control valve 230 on the first output pipeline 220 is opened to make the inerting agent input into the first output pipeline 220, and then the inerting agent is sprayed into the accommodating cavity 100A of the cabin body 100 through the first output port 220A to dilute the smoke gas and inhibit the battery module 20 from burning or exploding, thereby avoiding the situation from being deteriorated. After a large amount of inerting agent is sprayed, high pressure is generated in the accommodating cavity 100A, and at this time, the gas treatment assembly 300 is opened to perform harmless treatment on the mixed gas in the accommodating cavity 100A and then discharge the mixed gas, so that the thermal runaway treatment of the energy storage device is automatically completed, and the situation from being deteriorated is avoided.

[0042] The energy storage battery cabin provided by the embodiment of the present application is used for placing the battery module 20 in the accommodating cavity 100A of the cabin body 100, and the delivery assembly 200 is arranged on the cabin body 100 to input the inerting agent into the first input pipeline 210. When the battery module 20 is in thermal runaway, the first control valve 230 on the first output pipeline 220 is opened to make the inerting agent input into the first output pipeline 220, and then the inerting agent is sprayed into the accommodating cavity 100A of the cabin body 100 through the first output port 220A to dilute the smoke gas and inhibit the battery module 20 from burning or exploding, thereby avoiding the situation from being deteriorated. After a large amount of inerting agent is sprayed, high pressure is generated in the accommodating cavity 100A, and at this time, the gas treatment assembly 300 is opened to perform harmless treatment on the mixed gas in the accommodating cavity 100A and then discharge the mixed gas, so that the thermal runaway treatment of the energy storage device is automatically completed, and the situation from being deteriorated is avoided.

[0043] In combination with FIG. 3, FIG. 3 shows another structural schematic diagram of the energy storage battery cabin in an embodiment of the present application. In some embodiments, the gas treatment assembly 300 includes a gas discharge pipeline 310, a second control valve 330 and an abnormal gas processor 320, the cabin body 100 is provided with an exhaust port 100D, the exhaust port 100D is communicated with the accommodating cavity 100A, the first end of the gas discharge pipeline 310 is installed on the exhaust port 100D, the second end of the gas discharge pipeline 310 is connected with the abnormal gas processor 320, and the second control valve 330 is arranged on the gas discharge pipeline 310 or the exhaust port 100D. The gas discharge pipeline 310 is arranged to be connected with the exhaust port 100D on the cabin body 100. When the accommodating cavity 100A is sprayed with the inerting agent, the inerting agent and the smoke gas are mixed into abnormal gas, the more the inerting agent is input, the greater the gas pressure in the accommodating cavity 100A is, at this time, the second control valve 330 is opened, the abnormal gas in the accommodating cavity 100A is delivered to the abnormal gas processor 320 through the gas discharge pipeline 310, and the abnormal gas is discharged after being purified, so that the effect of treating the abnormal gas is achieved, and the whole process can be automatically completed, thereby having the characteristic of high automation degree.

[0044] In an optional embodiment, as shown in FIG. 1 and FIG. 2, the delivery assembly 200 further comprises a second input pipe 240, a second output pipe 250 and a third control valve 260, the second input pipe 240 and the second output pipe 250 are arranged in the cabin 100, the second input pipe 240 communicates with the second output pipe 250, the second output pipe 250 is provided with a second output port 250A, the second output port 250A is arranged in the accommodation cavity 100A and communicates with the accommodation cavity 100A, and the third control valve 260 is arranged in the second output pipe 250. The second input pipe 240 is arranged to input the inerting agent into the energy storage battery cabin, and the third control valve 260 is arranged to open or close the input of the inerting agent into the second output pipe 250. The delivery assembly 200 further arranges the second input pipe 240 to input the inerting agent, and the third control valve 260 can control the transmission of the inerting agent to the second output pipe 250. When the battery module 20 is in thermal runaway, the second output pipe 250 can transmit the inerting agent into the accommodation cavity 100A through the second output port 250A, thereby achieving the effect of inhibiting thermal runaway. When multiple battery modules 20 are in thermal runaway, only relying on the first output pipe 220 to input the inerting agent may not be enough to inhibit thermal runaway. By simultaneously inputting the inerting agent through the first output pipe 220 and the second output pipe 250, the flow rate in the accommodation cavity 100A can be increased to achieve the effect of rapid inerting in the accommodation cavity 100A, thereby avoiding combustion or explosion of multiple battery modules 20 and having the characteristic of high safety performance.

[0045] In an optional embodiment, the cabin 100 further comprises a first cover plate, a second cover plate, a first driving unit and a second driving unit, the cabin 100 is provided with an air inlet 100B and an air outlet 100C, both of which are in communication with the accommodation cavity 100A, the first driving unit is installed on the cabin 100, the output end of the first driving unit is connected with the first cover plate, and the first driving unit is arranged to drive the first cover plate to open or close the air inlet 100B; the second driving unit is installed on the cabin 100, the output end of the second driving unit is connected with the second cover plate, and the second driving unit is arranged to drive the second cover plate to open or close the air outlet 100C. By setting the first driving unit to drive the first cover plate to move, the air inlet 100B is opened or closed, and the second driving unit drives the second cover plate to move, so as to open or close the air outlet 100C. When the accommodation cavity 100A is normally running, the air inlet 100B and the air outlet 100C are in a normal open state, so as to ventilate and dissipate heat in the accommodation cavity 100A. When thermal runaway occurs in the accommodation cavity 100A, the first cover plate and the second cover plate close the air inlet 100B and the air outlet 100C respectively, so that the accommodation cavity 100A becomes a sealed chamber, so that the delivery assembly 200 adds the inerting agent to make the accommodation cavity 100A inert. In some embodiments, the air inlet 100B is provided with an air inlet device, and the air outlet 100C is provided with an air outlet device, the air inlet device and the air outlet device can respectively input and output gas into the accommodation cavity 100A, so as to drive the gas in the accommodation cavity 100A to flow, and improve the heat dissipation capacity of the energy storage battery cabin.

[0046] In an optional embodiment, the cabin 100 further comprises a third cover plate and a third driving unit, the cabin 100 is provided with an abnormal gas inspection port 100E, the abnormal gas inspection port 100E is in communication with the accommodation cavity 100A, the third driving unit is installed on the cabin 100, the output end of the third driving unit is connected with the third cover plate, and the third driving unit is arranged to drive the third cover plate to open or close the abnormal gas inspection port 100E. By setting the abnormal gas inspection port 100E, when thermal runaway occurs, the third driving unit can control the third cover plate to open the abnormal gas inspection port 100E, and the worker checks the situation in the accommodation cavity 100A through the abnormal gas inspection port 100E, so as to make good preparation and avoid the situation from getting worse.

[0047] In an optional embodiment, as shown in FIG. 1 and FIG. 2, the first input pipe 210 and the second input pipe 240 are arranged at two ends of the cabin 100 respectively, the first output pipe 220 and the second output pipe 250 are communicated, and the first output port 220A and the second output port 250A are arranged corresponding to the safety valve 21 of the different battery modules 20. By communicating the first output pipe 220 and the second output pipe 250 together, the delivery range of the inerting 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 inerting agent can be directly sprayed on the safety valve 21, thereby making the inerting agent directly act on the gas sprayed by the safety valve 21, so as to improve the efficiency of inhibiting thermal runaway.

[0048] In an optional embodiment, as shown in FIG. 2, the energy storage battery cabin 10 further comprises an oxygen concentration sensor 400 and a pressure sensor 500, and the pressure sensor 500 and the oxygen concentration sensor 400 are arranged in the accommodating cavity 100A. Exemplarily, the oxygen concentration sensor 400 is arranged at one side of the gas outlet 100C. By arranging the oxygen concentration sensor 400 and the pressure sensor 500, the oxygen concentration data and the pressure data in the accommodating cavity 100A are detected respectively. When the battery module 20 occurs thermal runaway, the inerting condition in the accommodating cavity 100A can be judged by the oxygen concentration data. The higher the oxygen concentration data is, the more the inerting effect is not up to the standard, and the high-speed spraying state of the inerting agent needs to be maintained. If the oxygen concentration data is lower and lower, the spraying speed of the inerting agent can be adjusted and reduced accordingly. When the pressure data detected by the pressure sensor 500 in the accommodating cavity 100A is above the critical pressure, the second control valve 330 and the abnormal gas processor 320 are opened, so as to discharge part of the abnormal gas in the accommodating cavity 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, so as to avoid damage to the cabin 100 due to excessive pressure. The critical pressure refers to the maximum pressure that the cabin 100 can withstand.

[0049] In an optional embodiment, as shown in FIG. 2, the energy storage battery cabin 10 further comprises a mounting bracket 600, and the mounting bracket 600 is arranged in the accommodating cavity 100A and is arranged to mount the battery module 20. By arranging the mounting bracket 600, the battery module 20 can be firmly mounted in the cabin 100.

[0050] On the other hand, the embodiments of the present application also provide an energy storage device, as shown in FIG. 1 and FIG. 2, which comprises the battery module 20 and the energy storage battery cabin 10 according to any one of the above embodiments, and the battery module 20 is mounted in the accommodating cavity 100A of the energy storage battery cabin 10.

[0051] The energy storage device provided by the embodiment of the present application has the characteristics of high safety and high automation, because the energy storage battery cabin 10 is provided with the conveying assembly 200, when the battery module 20 is in thermal runaway, the first input pipeline 210 and the first output pipeline 220 automatically spray the inerting agent into the accommodating cavity 100A of the cabin body 100, so as to inhibit the combustion or explosion of the battery module 20, and finally the abnormal gas is automatically treated and discharged by the gas treatment assembly 300.

[0052] In an optional embodiment, the energy storage device further comprises 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 electrically connected with the controller. The controller can be used to monitor the condition of the battery module 20 in real time, and when the thermal runaway occurs, the controller can be used to quickly control the components to inhibit the thermal runaway, thereby improving the safety of the energy storage device.

[0053] In another aspect, the present application further provides an energy storage device thermal runaway processing method, which is suitable for the energy storage device described in any of the above embodiments, and the energy storage device thermal runaway processing method comprises the following steps:

[0054] S100: when the battery module 20 in the energy storage device is in thermal runaway, the air inlet 100B and the air outlet 100C of the cabin body 100 are closed;

[0055] S200: the first control valve 230 of the energy storage battery cabin 10 is opened, and the first output pipeline 220 introduces the inerting agent into the accommodating cavity 100A;

[0056] S300: the pressure sensor 500 is used to monitor the pressure in the cabin body 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;

[0057] S400: the oxygen concentration sensor 400 is used to monitor the oxygen concentration in the cabin body 100, if the cabin oxygen concentration is higher than the standard value, the inerting agent is continuously sprayed into the accommodating cavity 100A, and as the oxygen concentration decreases, the spraying flow rate of the inerting agent is slowed down;

[0058] S500: when the cabin oxygen concentration is equal to the standard value, the first control valve 230 is closed.

[0059] The energy storage device thermal runaway processing method has the characteristics of high safety and high automation.

[0060] The energy storage battery cabin, the energy storage device and the energy storage device thermal runaway processing method have the following beneficial effects:

[0061] 1. By arranging the conveying assembly 200 in the cabin 100, when the battery module 20 occurs thermal runaway, the first input pipe 210 and the first output pipe 220 automatically spray the inerting agent into the accommodating cavity 100A, so as to inhibit the battery module 20 from burning or exploding, and finally the gas processing assembly 300 automatically processes and discharges the abnormal gas, which has the characteristics of high safety and high automation.

[0062] 2. After the accommodating cavity 100A is sprayed with the inerting agent, the inerting agent and the smoke gas are mixed into abnormal gas, the more the inerting agent is input, the greater the gas pressure of the accommodating cavity 100A is, at this time, the second control valve 330 is opened, the abnormal gas in the accommodating cavity 100A is conveyed to the abnormal gas processor 320 through the gas discharge pipe 310, and the abnormal gas is discharged after being purified, so that the effect of processing the abnormal gas is achieved, and the whole process can be automatically completed, which has the characteristic of high automation.

Claims

1. A battery cabin, comprising: a cabin body (100), an inner part of the cabin body (100) being provided with a receiving cavity (100A), the receiving cavity (100A) being configured to place a battery module (20) ; a delivery assembly (200), the delivery assembly (200) comprising a first input pipe (210), a first output pipe (220) and a first control valve (230), the first output pipe (220) being provided in the cabin body (100), the first input pipe (210) being in communication with the first output pipe (220), the first output pipe (220) being provided with a first output port (220A), the first output port (220A) being provided in the receiving cavity (100A) and being in communication with the receiving cavity (100A), the first control valve (230) being provided in the first output pipe (220), the first input pipe (210) being configured to input an inerting agent into the battery cabin, and the first control valve (230) being configured to open or close the input of the inerting agent into the first output pipe (220) ; and a gas treatment assembly (300), the gas treatment assembly (300) being in communication with the receiving cavity (100A), and the gas treatment assembly (300) being configured to treat mixed gas discharged from the receiving cavity (100A). 2.The battery cabin according to claim 1, wherein: the gas treatment assembly (300) comprises a gas discharge pipe (310), a second control valve (330) and an abnormal gas processor (320), the cabin body (100) is provided with an exhaust port (100D), the exhaust port (100D) being in communication with the receiving cavity (100A), a first end of the gas discharge pipe (310) being mounted to the exhaust port (100D), a second end of the gas discharge pipe (310) being connected to the abnormal gas processor (320), and the second control valve (330) being provided in the gas discharge pipe (310) or the exhaust port (100D). 3.The battery cabin according to claim 1, wherein: the delivery assembly (200) further comprises a second input pipe (240), a second output pipe (250) and a third control valve (260), the second input pipe (240) and the second output pipe (250) being provided in the cabin body (100), the second input pipe (240) being in communication with the second output pipe (250), the second output pipe (250) being provided with a second output port (250A), the second output port (250A) being provided in the receiving cavity (100A) and being in communication with the receiving cavity (100A), and the third control valve (260) being provided in the second output pipe (250), the second input pipe (240) being configured to input an inerting agent into the battery cabin, and the third control valve (260) being configured to open or close the input of the inerting agent into the second output pipe (250).

4. The energy storage battery cabin according to claim 1, wherein: the cabin body (100) further comprises a first cover plate, a second cover plate, a first driving unit and a second driving unit, the cabin body (100) is provided with an air inlet (100B) and an air outlet (100C), the air inlet (100B) and the air outlet (100C) are both in communication with the accommodating cavity (100A), the first driving unit is installed on the cabin body (100), the output end of the first driving unit is connected with the first cover plate, and the first driving unit is configured to drive the first cover plate to open or close the air inlet (100B); the second driving unit is installed on the cabin body (100), the output end of the second driving unit is connected with the second cover plate, and the second driving unit is configured to drive the second cover plate to open or close the air outlet (100C).

5. The energy storage battery cabin according to claim 1, wherein: the cabin body (100) further comprises a third cover plate and a third driving 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 driving unit is installed on the cabin body (100), the output end of the third driving unit is connected with the third cover plate, and the third driving unit is configured to drive the third cover plate to open or close the abnormal gas inspection port (100E).

6. The energy storage battery cabin according to claim 3, wherein: the first input pipe (210) and the second input pipe (240) are respectively arranged at two ends of the cabin body (100), the first output pipe (220) and the second output pipe (250) are in communication, 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 cabin according to claim 1, further comprising an oxygen concentration sensor (400) and a pressure sensor (500), the pressure sensor (500) and the oxygen concentration sensor (400) are both arranged in the accommodating cavity (100A).

8. The energy storage battery cabin according to claim 1, further comprising a mounting bracket (600), the mounting bracket (600) is arranged in the accommodating cavity (100A), and the mounting bracket (600) is configured to mount the battery module (20).

9. An energy storage device, comprising a battery module (20) and the energy storage battery cabin (10) according to any one of claims 1-8, and the battery module (20) is mounted in the accommodating cavity (100A) of the energy storage battery cabin (10).

10. An energy storage device thermal runaway processing method, applicable to the energy storage device according to claim 9, and the energy storage device thermal runaway processing method comprises: in response to the battery module (20) in the energy storage device occurring thermal runaway, closing the air inlet (100B) and the air outlet (100C) of the cabin body (100). opening the first control valve (230) of the energy storage battery cabin (10), and the first output pipeline (220) introduces the inerting agent into the accommodating cavity (100A); monitoring the pressure in the cabin (100) by using the pressure sensor (500), opening the second control valve (330) and the abnormal gas processor (320) in response to the cabin pressure reaching the critical pressure, and closing the second control valve (330) and the abnormal gas processor (320) in response to the cabin pressure being less than the critical pressure; monitoring the oxygen concentration in the cabin (100) by using the oxygen concentration sensor (400), maintaining the injection of the inerting agent into the accommodating cavity (100A) in response to the cabin oxygen concentration being higher than the standard value, and slowing down the injection flow rate of the inerting agent as the oxygen concentration decreases; closing the first control valve (230) in response to the cabin oxygen concentration being equal to the standard value.

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