Sodium-lithium combined industrial and commercial energy storage cabinet

Abstract

The utility model provides a sodium-lithium combined industrial and commercial energy storage cabinet, which comprises a cabin body assembly, a battery cluster, a master control cabinet, a PCS cabinet controlled by the master control cabinet, an on-off network cabinet and a fire-fighting cabinet are arranged in the cabin body assembly, the PCS cabinet, the on-off network cabinet and the battery cluster are electrically connected, and the battery cluster is electrically connected with the master control cabinet. The battery cluster comprises a sodium ion battery cluster formed by interconnection of sodium ion batteries and a lithium ion battery cluster formed by interconnection of lithium ion batteries. According to the utility model, the sodium ion battery and the lithium ion battery are combined, so that the low-temperature performance, the safety performance, the working voltage and the like of the energy storage cabinet are effectively improved; the cabin body assembly realizes the installation of a sodium ion battery cluster, a lithium ion battery cluster, a fire-fighting cabinet, a fire-fighting pipeline, a ventilation and heat dissipation system, a master control cabinet and a cable, and ensures the mechanical safety reliability, the fire-fighting function reliability, the heat management function reliability, the power supply function reliability and the like.

Description

Technical Field

[0001] This utility model relates to the field of energy storage cabinet technology, and in particular to a sodium-lithium combined industrial and commercial energy storage cabinet. Background Technology

[0002] Electrochemical energy storage is a crucial flexibility resource in the construction of new power systems. Currently, lithium-ion batteries account for a large proportion of installed electrochemical energy storage capacity and are the most important form of electrochemical energy storage. Sodium-ion batteries share similar comprehensive electrochemical performance and a nearly identical industrial chain foundation with lithium-ion batteries, making them one of the most promising new energy storage forms for addressing the future lithium resource shortage crisis. Although sodium-ion batteries offer significantly better low-temperature performance and safety than lithium-ion batteries, their wider operating voltage range makes combined sodium-lithium energy storage a new direction for the iteration of electrochemical energy storage technology. Utility Model Content

[0003] The purpose of this invention is to provide a sodium-lithium combined industrial and commercial energy storage cabinet that combines sodium-ion batteries and lithium-ion batteries to effectively improve the low-temperature performance, safety performance, and operating voltage of the energy storage cabinet.

[0004] The technical solution of this utility model includes: a sodium-lithium combined industrial and commercial energy storage cabinet, which includes a cabin assembly, wherein the cabin assembly is provided with a battery cluster, a main control cabinet, and a PCS cabinet, a grid-connected cabinet, and a fire-fighting cabinet controlled by the main control cabinet. The PCS cabinet, the grid-connected cabinet, and the battery cluster are electrically connected. The battery cluster includes a sodium-ion battery cluster formed by interconnecting sodium-ion batteries and a lithium-ion battery cluster formed by interconnecting lithium-ion batteries.

[0005] Furthermore, the PCS cabinet includes PCS cabinet one and PCS cabinet two, the grid-connected cabinet includes grid-connected cabinet one and grid-connected cabinet two, the sodium-ion battery cluster is connected to the user transformer box through PCS cabinet one and grid-connected cabinet one, and the lithium-ion battery cluster is connected to the user transformer box through PCS cabinet two and grid-connected cabinet two.

[0006] Furthermore, the cabin assembly includes:

[0007] Base;

[0008] Top cover;

[0009] The battery compartment for accommodating the battery cluster, the PCS compartment for accommodating the PCS cabinet, the parallel / offline grid compartment for accommodating the parallel / offline grid cabinet, and the fire control compartment for accommodating the main control cabinet and the fire cabinet are located between the base and the top cover.

[0010] Furthermore, the battery compartment, the PCS compartment, the on-grid compartment, and the fire control compartment all include a compartment frame, an outer protective panel, and a door. The door and the outer protective panel are located outside the compartment frame to isolate the inside and outside of the compartment frame. A compartment partition is provided between adjacent compartment frames.

[0011] Furthermore, the battery compartment is provided with an internal partition, which divides the internal space of the battery compartment into a sodium battery area for accommodating the sodium-ion battery cluster and a lithium battery area for accommodating the lithium-ion battery cluster.

[0012] Furthermore, the base includes an annular frame and reinforcing beams, which are arranged in a crisscross pattern within the annular frame, with the highest density of the reinforcing beams located at the bottom of the battery compartment.

[0013] Furthermore, the annular frame is provided with a mounting hole and a hanging bracket. The mounting hole is used to fix the energy storage cabinet, and the hanging bracket is provided with retractable hanging feet.

[0014] Furthermore, the fire cabinet is equipped with a fire tank, the medium outlet of which is connected to a fire pipeline that runs through the interior of the cabin assembly. The medium outlet of the fire pipeline is connected to sprinkler heads distributed in the battery compartment, the PCS compartment, and the on-grid compartment. The battery compartment is equipped with a VOC detector, a smoke sensor, and a temperature sensor that are connected to the main control cabinet via signals.

[0015] Furthermore, the battery compartment is equipped with an air conditioner, a battery compartment pressure relief valve, and a battery compartment fire exhaust fan; the PCS compartment is equipped with a louver one; the on-grid and off-grid compartment is equipped with a louver two; and the fire control compartment is equipped with a fire control compartment pressure relief valve to achieve air exchange between the inside and outside of the energy storage cabinet.

[0016] The beneficial effects of this utility model are as follows: the combined sodium-lithium industrial and commercial energy storage cabinet utilizes sodium-ion batteries and lithium-ion batteries, effectively improving the low-temperature performance, safety performance, and operating voltage of the energy storage cabinet. The cabinet's assembly allows for the installation of sodium-ion and lithium-ion battery clusters while ensuring their mechanical safety and reliability; it also allows for the installation of fire cabinets and fire-fighting pipelines while ensuring the reliability of fire-fighting functions; it allows for the installation of ventilation and heat dissipation systems while ensuring the reliability of thermal management functions; and it allows for the installation of the main control cabinet and cables while ensuring their functional reliability. This has significant practical implications for production. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an embodiment of the present invention from a first stereoscopic perspective;

[0018] Figure 2This is a first depth sectional view of an embodiment of the present invention from a second stereoscopic perspective;

[0019] Figure 3 This is a second depth sectional view of an embodiment of the present invention from a second stereoscopic perspective;

[0020] Figure 4 This is a third depth sectional view of an embodiment of the present invention from a second stereoscopic perspective;

[0021] Figure 5 This is a cross-sectional view of an embodiment of the present invention from a third perspective.

[0022] Figure 6 This is a distribution diagram of fire-fighting pipes and cable pipes in an embodiment of this utility model;

[0023] Figure 7 This is an appendix to the embodiments of this utility model. Figure 6 Enlarged view of the structure at point A in the middle;

[0024] Figure 8 This is a structural diagram of the battery compartment in an embodiment of this utility model;

[0025] Figure 9 This is a structural diagram of the base in an embodiment of this utility model.

[0026] In the picture:

[0027] 1. Base; 1-1. Circular frame; 1-2. Reinforcing beam; 1-3. Weight reduction hole; 1-4. Mounting through hole;

[0028] 2. Top cover;

[0029] 3. Battery compartment;

[0030] 4. Sodium-ion battery clusters;

[0031] 5. Lithium-ion battery clusters;

[0032] 6. PCS cabin;

[0033] 7. PCS cabinet one;

[0034] 8. PCS cabinet two;

[0035] 9. And leave the net cabin;

[0036] 10. And separate from the network cabinet;

[0037] 11. And separate from the second network cabinet;

[0038] 12. Fire control center;

[0039] 13. Central control cabinet;

[0040] 14. Control Panel;

[0041] 15. Alarm device;

[0042] 16. Fire cabinet;

[0043] 17. Fire protection piping;

[0044] 18. Fire tank;

[0045] 19. Sprinkler head;

[0046] 20. VOC detector;

[0047] 21. Smoke sensor;

[0048] 22. Temperature sensor;

[0049] 23. Cable conduits;

[0050] 24. Hanging bracket;

[0051] 25. Hanging leg;

[0052] 26. Cabin frame;

[0053] 27. Exterior panel; 27-1. Bottom panel; 27-2. Side panels; 27-3. Top panel;

[0054] 28. Cabin door;

[0055] 29. Cabin spacers;

[0056] 30. Air conditioning;

[0057] 31. Battery compartment pressure relief valve;

[0058] 32. Battery compartment fire exhaust fan;

[0059] 33. Venetian blinds, type 1;

[0060] 34. Venetian blinds, part two;

[0061] 35. Pressure relief valve in the fire control room;

[0062] 36. Connectors;

[0063] 37. Connecting hole;

[0064] 38. Cabin bulkhead. Detailed Implementation

[0065] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0066] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0067] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0068] Reference Appendix Figure 1-9This embodiment provides a sodium-lithium combined industrial and commercial energy storage cabinet, which includes a cabin assembly and its internal battery clusters, a main control cabinet 13, a PCS cabinet, a grid-connected cabinet, and a fire-fighting cabinet 16. The battery clusters include sodium-ion battery clusters 4 formed by interconnecting sodium-ion batteries and lithium-ion battery clusters 5 formed by interconnecting lithium-ion batteries. The PCS cabinets include PCS cabinet 7 and PCS cabinet 8. The grid-connected cabinets include grid-connected cabinet 10 and grid-connected cabinet 21. The sodium-ion battery clusters 4 are connected to the user's transformer substation (i.e., the user-end transformer substation) via PCS cabinet 7 and grid-connected cabinet 10. The lithium-ion battery clusters 5 are connected to the user's transformer substation via PCS cabinet 8 and grid-connected cabinet 21. PCS cabinet 7, PCS cabinet 8, grid-connected cabinet 10, and grid-connected cabinet 21 are controlled by the main control cabinet 13 to adjust the charging and discharging state of the battery clusters. The fire-fighting cabinet 16 is controlled by the main control cabinet 13 to ensure the electrical safety of the energy storage cabinet.

[0069] In use, the main control cabinet 13 receives signals from the user's transformer box, determines its load rate, and adjusts PCS cabinet 17, PCS cabinet 28, grid-connected cabinet 10 and grid-connected cabinet 21 according to the load rate of the user's transformer box to change the charging and discharging state of the battery clusters. The charging and discharging state includes simultaneous charging of sodium-ion battery cluster 4 and lithium-ion battery cluster 5, and simultaneous discharging of sodium-ion battery cluster 4 and lithium-ion battery cluster 5. Because sodium-ion batteries have better low-temperature performance and safety performance than lithium-ion batteries, sodium-ion batteries retain about 90% of their capacity at low temperatures, while lithium-ion batteries retain only about 80%. Sodium-ion batteries also have a wider operating voltage range. Through the linkage of PCS cabinet 17, PCS cabinet 28, grid-connected cabinet 10, and grid-connected cabinet 21, as well as the regulation of the main control cabinet 13, sodium-ion battery cluster 4 and lithium-ion battery cluster 5 can be charged and discharged synchronously. Sodium-ion batteries can compensate for the poor low-temperature performance, poor safety performance, and scarcity and high cost of lithium-ion batteries. By introducing lithium-ion batteries, the operating voltage range of the energy storage cabinet containing sodium-ion batteries can be narrowed, improving the electro-conversion efficiency and reducing costs.

[0070] In this embodiment, the storage unit assembly includes a base 1, a top cover 2, a battery compartment 3, a PCS compartment 6, a parallel / off-grid compartment 9, and a fire control compartment 12. The base 1 and top cover 2 are positioned opposite each other, providing structural support and protection. The battery compartment 3, PCS compartment 6, parallel / off-grid compartment 9, and fire control compartment 12 are located between the base 1 and top cover 2, and are arranged horizontally in parallel. The battery compartment 3 houses sodium-ion battery clusters 4 and lithium-ion battery clusters 5; the PCS compartment 6 houses PCS cabinets; the parallel / off-grid compartment 9 houses parallel / off-grid cabinets; and the fire control compartment 12 houses a control cabinet 13 and a fire cabinet 16. To reduce the weight of the energy storage unit, lower costs, improve transfer efficiency and safety, refer to the attached diagram. Figure 9In this embodiment, the base 1 is configured to include an annular frame 1-1 and reinforcing beams 1-2. The reinforcing beams 1-2 are arranged in a crisscross pattern in the annular frame 1-1. Weight reduction holes 1-3 can also be provided on the reinforcing beams 1-2 located inside the annular frame 1-1. In implementation, the density of the reinforcing beams 1-2 can be planned according to the required weight. The battery cluster in the energy storage cabinet has the largest mass, so the density of the reinforcing beams 1-2 at the bottom of the battery compartment 3 should be the highest.

[0071] To facilitate relocation and installation, the annular frame 1-1 is also equipped with a mounting through hole 1-4, a lifting bracket 24, and lifting feet 25. The mounting through hole 1-4 is a through hole used to install bolts that connect and fix the energy storage cabinet to the mounting foundation. The lifting bracket 24 is fixedly installed on the annular frame 1-1, and the lifting feet 25 are retractably mounted on the lifting bracket 24 (for example, one end slides through the lifting bracket 24). When it is necessary to lift and move the energy storage cabinet, the lifting feet 25 are pulled out, and the lifting rings or ropes of the lifting equipment are attached to the lifting feet 25. When the transfer is completed, the lifting feet 25 are retracted to avoid space occupation and obstruction of other work. In implementation, the shape, direction, position, and density of the lifting feet 25 can be configured according to actual usage requirements, and no specific limitations are made here.

[0072] In this embodiment, battery compartment 3 (see attached diagram) Figure 8 The PCS compartment 6, the off-grid compartment 9, and the fire control compartment 12 all include a compartment frame 26, an outer protective panel 27, and a door 28. The door 28 and the outer protective panel 27 are located outside the compartment frame 26 to isolate the inside and outside of the compartment frame 26. The door 28 is hinged to the compartment frame 26 to facilitate access for maintenance personnel. The outer protective panel 27 is bolted to the compartment frame 26 to ensure structural strength and safety performance. Furthermore, adjacent compartment frames 26... The compartment is equipped with a partition 29, which isolates adjacent compartment frames 26 from each other to prevent the internal structures from affecting each other; the battery compartment 3 is equipped with an internal partition 38, which divides the internal space of the battery compartment 3 into a sodium battery area for accommodating sodium-ion battery clusters 4 and a lithium battery area for accommodating lithium-ion battery clusters 5; the number and direction of the doors 28 can be set as needed, for example, the battery compartment 3 can be equipped with two doors 28, which are used to open the lithium battery area and the sodium battery area respectively.

[0073] To ensure the normal operation of all equipment in the energy storage cabinet, this embodiment provides an air conditioner 30 and / or an exhaust fan on the outer protective panel 27 or door 28 of the battery compartment 3. Other outer protective panels 27 or doors 28 in the battery compartment 3 are provided with a battery compartment pressure relief valve 31 and a battery compartment fire exhaust fan 32. The outer protective panel 27 or door 28 of the PCS compartment 6 is provided with a louver 33. The outer protective panel 27 or door 28 of the parallel and off-grid compartment 9 is provided with a louver 34. The outer protective panel 27 or door 28 of the fire control compartment 12 is provided with a fire control compartment pressure relief valve 35, a control panel 14 and an alarm 15. Air conditioner 30, exhaust fan, battery compartment pressure relief valve 31, battery compartment fire exhaust fan 32, louver one 33, louver two 34, and fire control room pressure relief valve 35 are used to ensure that harmful gases or high-temperature gases in the energy storage cabinet can be discharged smoothly to ensure the normal working environment of the battery cluster. Alarm 15 and control panel 14 are both connected to the main control cabinet 13. When the main control cabinet 13 receives an alarm signal, the alarm 15 can flash or sound an alarm. The function of control panel 14 is to facilitate manual adjustment of the parameters of the main control cabinet 13 and change the working status of the battery cluster, etc.

[0074] Reference Appendix Figure 6-7 To ensure the normal operation of all equipment in the energy storage cabinet, the hull assembly is also equipped with pipes that penetrate the compartment partition 29, such as fire-fighting pipe 17 and cable pipe 23. The medium inlet of the fire-fighting pipe 17 is connected to the medium outlet of the fire tank 18 in the fire cabinet 16. The medium outlets of the fire-fighting pipe 17 are distributed in the battery compartment 3, PCS compartment 6, and on / off grid compartment 9, and are equipped with sprinkler heads 19 to facilitate uniform spraying of the fire-fighting medium. In addition, the battery compartment 3 is equipped with a VOC detector 20, a smoke sensor 21, and a temperature sensor 22 that are connected to the main control cabinet 13 via signals. When the battery compartment 3 malfunctions or a fire occurs, the VOC detector 20 can be used to detect whether the concentration of harmful gases in the battery compartment 3 exceeds the standard, and the smoke sensor 21 can be used to detect... Whether smoke is generated in battery compartment 3, temperature sensor 22 can be used to detect whether the temperature in battery compartment 3 exceeds the standard. If there is an abnormality, an alarm signal is generated and transmitted to the main control cabinet 13. The main control cabinet 13 activates the valve of fire tank 18, and fire-fighting medium is sprayed through fire pipe 17 and sprinkler head 19. Cable duct 23 is used to connect battery clusters, PCS cabinet, parallel and off-grid cabinet, main control cabinet 13 and user box transformer. It is worth noting that there is a cable duct 23 between sodium ion battery cluster 4, PCS cabinet 7 and parallel and off-grid cabinet 10, and another cable duct 23 between lithium ion battery cluster 5, PCS cabinet 8 and parallel and off-grid cabinet 11. The two cable ducts 23 and the cables inside them are independent of each other and do not affect each other.

[0075] In addition, lighting and motion-sensor switches (not shown in the attached diagram) can also be installed in the battery compartment 3, PCS compartment 6, on-grid compartment 9 and / or fire control compartment 12. The motion-sensor switches are controlled by the opening and closing of the door 28, and the lighting can be adjusted by photoelectric sensing, displacement sensing, etc., without specific restrictions.

[0076] The aforementioned external protective panel 27 should include at least: a bottom plate 27-1, side plates 27-2, and a top plate 27-3. The cabin frame 26 and the bottom plate 27-1 are connected by bolts and then fixed to the base 1 by bolts. Connectors 36 can also be provided between adjacent cabin frames 26. The two ends of the connectors 36 are connected to different cabin frames 26 respectively, and the middle part is connected to the base 1 to improve the connection stability between the cabin frame 26 and the base 1 and the connection tightness between adjacent cabin frames 26. The shape of the connectors 36 can be configured according to actual needs, such as a straight plate or a V-shaped plate, etc., without specific limitations here.

[0077] Connection holes 37 can be provided on the cabin frame 26, bottom plate 27-1, side plate 27-2 and top plate 27-3 as needed. The connection holes 37 can be bolt holes or smooth holes for installing connection bolts. For example, they can include: battery cluster connection holes 37, PCS cabinet connection holes 37, lighting connection holes 37, pipe support connection holes 37 (the pipe support is used to support and protect the fire pipe 17 and cable pipe 23, which is the prior art), induction switch connection holes 37, parallel and offline cabinet connection holes 37, main control cabinet connection holes 37 and fire cabinet connection holes 37, etc.

[0078] The cabin frame 26 is made by welding steel profiles to form any three-dimensional geometric contour (configured according to requirements). The density of its beams and columns can be configured according to the load-bearing requirements. Its internal space is used to accommodate various functional equipment. In addition, redundant walkway space should be provided to facilitate maintenance personnel to enter and carry out maintenance.

[0079] Compared with existing technologies, the beneficial effects of this utility model are as follows: the sodium-lithium combined industrial and commercial energy storage cabinet combines sodium-ion batteries and lithium-ion batteries, effectively improving the low-temperature performance, safety performance, and operating voltage of the energy storage cabinet. The cabinet's assembly allows for the installation of sodium-ion battery clusters 4 and lithium-ion battery clusters 5, ensuring their mechanical safety and reliability; it also allows for the installation of fire cabinets 16 and fire pipes 17, ensuring the reliability of fire protection functions; it allows for the installation of ventilation and heat dissipation systems, ensuring the reliability of thermal management functions; and it allows for the installation of the main control cabinet 13 and cables, ensuring their functional reliability. This has significant practical significance for production.

[0080] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sodium-lithium combined industrial and commercial energy storage cabinet, characterized in that, The system includes a cabin assembly, which contains a battery cluster, a central control cabinet, and a PCS cabinet, a grid-connected cabinet, and a fire suppression cabinet controlled by the central control cabinet. The PCS cabinet, the grid-connected cabinet, and the battery cluster are electrically connected. The battery cluster includes a sodium-ion battery cluster formed by interconnecting sodium-ion batteries and a lithium-ion battery cluster formed by interconnecting lithium-ion batteries.

2. The sodium-lithium combined industrial and commercial energy storage cabinet according to claim 1, characterized in that, The PCS cabinet includes PCS cabinet one and PCS cabinet two. The grid-connected and off-grid cabinet includes grid-connected and off-grid cabinet one and grid-connected and off-grid cabinet two. The sodium-ion battery cluster is connected to the user transformer box through PCS cabinet one and grid-connected and off-grid cabinet one. The lithium-ion battery cluster is connected to the user transformer box through PCS cabinet two and grid-connected and off-grid cabinet two.

3. The sodium-lithium combined industrial and commercial energy storage cabinet according to claim 1 or 2, characterized in that, The cabin assembly includes: base; Top cover; The battery compartment for accommodating the battery cluster, the PCS compartment for accommodating the PCS cabinet, the parallel / offline grid compartment for accommodating the parallel / offline grid cabinet, and the fire control compartment for accommodating the main control cabinet and the fire cabinet are located between the base and the top cover.

4. The sodium-lithium combined industrial and commercial energy storage cabinet according to claim 3, characterized in that, The battery compartment, the PCS compartment, the on-grid compartment, and the fire control compartment all include a body frame, an outer protective panel, and a door. The door and the outer protective panel are located outside the body frame to isolate the inside and outside of the body frame. A partition is provided between adjacent body frames.

5. The sodium-lithium combined industrial and commercial energy storage cabinet according to claim 3, characterized in that, The battery compartment is provided with an internal partition, which divides the internal space of the battery compartment into a sodium battery area for accommodating the sodium-ion battery cluster and a lithium battery area for accommodating the lithium-ion battery cluster.

6. The sodium-lithium combined industrial and commercial energy storage cabinet according to claim 4 or 5, characterized in that, The base includes an annular frame and reinforcing beams, which are arranged in a crisscross pattern within the annular frame, with the highest density of the reinforcing beams located at the bottom of the battery compartment.

7. The sodium-lithium combined industrial and commercial energy storage cabinet according to claim 6, characterized in that, The annular frame is provided with a mounting hole and a hanging bracket. The mounting hole is used to fix the energy storage cabinet, and the hanging bracket is provided with retractable hanging feet.

8. The sodium-lithium combined industrial and commercial energy storage cabinet according to claim 6, characterized in that, The fire cabinet is equipped with a fire tank. The medium outlet of the fire tank is connected to a fire pipe that runs through the interior of the cabin assembly. The medium outlet of the fire pipe is connected to sprinkler heads distributed in the battery compartment, the PCS compartment, and the on-grid compartment. The battery compartment is equipped with a VOC detector, a smoke sensor, and a temperature sensor that are connected to the main control cabinet via signals.

9. The sodium-lithium combined industrial and commercial energy storage cabinet according to claim 6, characterized in that, The battery compartment is equipped with an air conditioner, a battery compartment pressure relief valve, and a battery compartment fire exhaust fan. The PCS compartment is equipped with a louver one, the on-grid and off-grid compartment is equipped with a louver two, and the fire control compartment is equipped with a fire control compartment pressure relief valve to realize air exchange between the inside and outside of the energy storage cabinet.

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