energy storage system

Abstract

The application discloses an energy storage system, and belongs to the technical field of batteries. A first bin body and a second bin body are stacked along a height direction, the first bin body is located above the second bin body, and the size of at least one of the first bin body and the second bin body along the height direction is smaller than the size of a standard container along the height direction. A control module is used for electrically controlling a plurality of battery devices in the first bin body and the second bin body. Each battery monomer comprises a shell, the length of the shell is 465mm-525mm, the width of the shell is 49mm-60mm, and / or the height of the shell is 163mm-184mm. The battery devices in the first bin body are arranged in nine rows along the height direction, and / or the battery devices in the second bin body are arranged in nine rows along the height direction. The energy storage system has a relatively high volume energy density.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to PCT patent application PCT / CN2025 / 082667, filed on March 14, 2025, entitled “Energy Storage Device, Energy Storage System and Charging Network”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of battery technology, and more specifically, to an energy storage system. Background Technology

[0004] With the rapid development of technology, electricity has become an indispensable energy source in people's production and daily life. To improve the smoothness of electricity supply and ensure the normal operation of production and daily life, energy storage systems are needed. Energy storage systems can achieve the cyclical storage and release of electrical energy. By charging or discharging the battery devices in the energy storage system, electrical energy can be stored in the system or supplied to electrical devices. Energy storage systems are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power stations.

[0005] In the development of energy storage systems, besides improving their performance, increasing their volumetric energy density is also a crucial issue. Therefore, improving the volumetric energy density of energy storage systems is a continuous technical challenge in energy storage technology. Utility Model Content

[0006] This application provides an energy storage system that can improve the volumetric energy density of the energy storage system.

[0007] In a first aspect, embodiments of this application provide an energy storage system, comprising a first compartment, a second compartment, a control module, and multiple battery devices. Multiple battery devices are housed in both the first and second compartments, which are stacked along their height, with the first compartment positioned above the second compartment. At least one of the first and second compartments has a height dimension smaller than that of a standard shipping container. The control module is used to electrically control the multiple battery devices within the first and second compartments, and at least one of the first and second compartments houses the control module. Each battery device includes multiple battery cells, and each battery cell includes a casing. The width and height of the casing are both less than the length of the casing. The length of the casing is 465mm-525mm, and / or the width of the casing is 49mm-60mm, and / or the height of the casing is 163mm-184mm. Along the height direction, the battery devices in the first compartment are arranged in 9 rows, and multiple battery devices in each row are arranged along the length direction of the first compartment. And / or, along the height direction, the battery devices in the second compartment are arranged in 9 rows, and multiple battery devices in each row are arranged along the length direction of the first compartment.

[0008] In the technical solution of this application embodiment, on the one hand, since the first and second compartments are modularly combined along the height direction, and the components disposed in the first compartment and the components disposed in the second compartment are integrated into a complete system through a control module, the first compartment and the components disposed therein are transported independently while meeting transportation requirements, and the second compartment and the components disposed therein are transported independently, forming a high-energy energy storage system after transportation. This is beneficial for making full use of the internal space of the first and second compartments while ensuring that the energy storage system has both high energy and convenient transportation. By using battery cells whose shell width and shell height are both smaller than the shell length, and controlling the shell size of the battery cells within a reasonable range, the internal space of the battery device including the battery cells can be fully utilized by the battery cells, thereby improving the energy density of the battery device. In addition, stacking the battery devices in the first compartment and / or the battery devices in the second compartment nine layers along the height direction allows the space in the first compartment and / or the second compartment to be utilized as much as possible by the battery devices, which is beneficial for improving the volumetric energy density of the energy storage system, thereby enabling the energy storage system to have high energy.

[0009] In one or more embodiments of the first aspect, the number of battery devices in the first compartment is equal to the number of battery devices in the second compartment.

[0010] In the above scheme, the number of battery devices in the first compartment is equal to the number of battery devices in the second compartment, which can improve the compatibility between the first compartment and the second compartment and help reduce the wiring difficulty in the first compartment and the second compartment.

[0011] In one or more embodiments of the first aspect, the number of battery devices in the first compartment is 36, and / or the number of battery devices in the second compartment is 36.

[0012] In the above scheme, the first compartment contains 36 battery devices, and / or the second compartment contains 36 battery devices, which enables the energy storage system to have high energy.

[0013] In one or more embodiments of the first aspect, the battery devices in the first compartment are arranged in four columns, with multiple battery devices in each column arranged along the height direction, and / or, the battery devices in the second compartment are arranged in four columns, with multiple battery devices in each column arranged along the height direction.

[0014] In the above scheme, the first compartment and / or the second compartment have four rows of battery devices arranged along the length direction, which can enable the energy storage system to have a large amount of energy while meeting the transportation requirements of the energy storage system.

[0015] In one or more embodiments of the first aspect, the dimensions of the first compartment along the height direction and the dimensions of the second compartment along the height direction are both greater than half the dimensions of a standard container along the height direction.

[0016] In the above scheme, the dimensions of the first and second compartments along the height direction are both greater than half the dimensions of a standard container along the height direction, which allows the first and second compartments to accommodate more battery devices while having a smaller volume.

[0017] In one or more embodiments of the first aspect, the length of the outer casing is the dimension of the outer casing along the length direction of the first compartment, the width of the outer casing is the dimension of the outer casing along the width direction of the first compartment, the height of the outer casing is the dimension of the outer casing along the height direction, the dimension of the first compartment in the length direction is greater than the dimension of the first compartment in the width direction, a plurality of battery cells are arranged along the width direction of the first compartment to form a battery cell assembly, and each battery cell further includes an electrode terminal, the electrode terminal being disposed at at least one end of the outer casing along the length direction of the first compartment.

[0018] In the above scheme, since the influence coefficient of the redundant space in the length direction on the total loading capacity in the first and second compartments is smaller than that in the width and height directions, placing the electrode terminals at at least one end of the outer casing along the length direction of the first compartment can significantly reduce the space occupied by the electrode terminals in the height and width directions of the first and second compartments, thereby significantly reducing the size of the individual battery cells in the height direction and the width direction of the first compartment. This further reduces the size of the battery pack including multiple battery cells in the height and width directions of the first compartment. More battery packs can be loaded within the limited loading space of the energy storage system, thus increasing the volumetric energy density of the energy storage system.

[0019] In one or more embodiments of the first aspect, the battery device includes two battery cell assemblies arranged along the length of the first compartment, each battery cell assembly including a plurality of battery cells arranged along the width of the first compartment.

[0020] In the above scheme, two battery cell assemblies are arranged along the length of the first compartment, and multiple battery cells in each battery cell assembly are arranged along the width of the first compartment. This arrangement reduces the height dimension of the battery device, allowing the first and second compartments to accommodate more battery devices along the height direction, thereby increasing the volumetric energy density of the energy storage system.

[0021] In one or more embodiments of the first aspect, the electrode terminals of the battery cells in one battery cell assembly are arranged back-to-back with the electrode terminals of the battery cells in another battery cell assembly.

[0022] In the above scheme, since the electrode terminals of the battery cells in one battery cell assembly are arranged back to back with the electrode terminals of the battery cells in another battery cell assembly, the risk of interference between the battery cells in different battery cell assemblies during the assembly process can be reduced, and the electrical connection between different battery cells in a battery cell assembly can be more easily achieved in a limited space.

[0023] In one or more embodiments of the first aspect, the electrode terminals include a positive terminal and a negative terminal, which are disposed at the same end of the housing along the length of the housing.

[0024] In the above scheme, the positive and negative terminals can share some space, which is beneficial to further improve the energy density of the battery device, thereby further improving the energy density of the energy storage system.

[0025] In one or more embodiments of the first aspect, the battery cell further includes a pressure relief mechanism disposed in the housing, wherein the pressure relief mechanism and the electrode terminals are located at opposite ends of the housing along the length of the housing.

[0026] In the above scheme, the pressure relief mechanism and the electrode terminals are located at opposite ends of the casing. On the one hand, this can reduce the risk of fire caused by the emissions from the battery cell short-circuiting the positive and negative terminals.

[0027] In one or more embodiments of the first aspect, two battery cell assemblies are connected in series, each battery cell assembly comprising 33-36 battery cells connected in series.

[0028] In the above scheme, the battery device can have a larger voltage, which is beneficial to improving the charging and discharging efficiency of the energy storage system.

[0029] In one or more embodiments of the first aspect, each battery cell assembly includes 34 battery cells, or each battery cell assembly includes 35 battery cells.

[0030] In the above scheme, when the battery cell assembly has 34 battery cells connected in series, the battery device includes 68 battery cells connected in series. When the battery cell assembly has 35 battery cells connected in series, the battery device includes 70 battery cells connected in series. The battery device has a large voltage, and the energy storage system including the battery device has a high charge and discharge efficiency.

[0031] In one or more embodiments of the first aspect, the energy storage system further includes a converter, the converter includes a first converter, and the plurality of battery devices located in the first compartment include a plurality of first battery clusters, the first converter being electrically connected to at least one first battery cluster.

[0032] And / or, the energy storage system also includes a converter, the converter including a second converter, and a plurality of battery devices located in the second compartment including a plurality of second battery clusters, the second converter being electrically connected to at least one second battery cluster.

[0033] In the above scheme, the first battery cluster is electrically connected to the first inverter. The first inverter can input or output electrical energy to multiple battery devices in the first battery cluster, allowing multiple first battery clusters to be connected to electrical equipment or the power grid respectively. This results in higher integration and a more compact arrangement of the multiple battery devices located within the first storage compartment, thereby increasing the volumetric energy density of the energy storage system. Similarly, the second battery cluster is electrically connected to the second inverter. The second inverter can input or output electrical energy to multiple battery devices in the second battery cluster, allowing multiple second battery clusters to be connected to electrical equipment or the power grid respectively. This results in higher integration and a more compact arrangement of the multiple battery devices located within the second storage compartment, thereby increasing the volumetric energy density of the energy storage system.

[0034] In one or more embodiments of the first aspect, the energy storage system further includes a first sub-control module, the first sub-control module including a first control part and a second control part, the first converter being electrically connected to at least one first battery cluster through the first control part, and the second control part being communicatively connected to a battery monitoring unit and a control module of a battery device located in the first compartment.

[0035] And / or, the energy storage system further includes a second sub-control module, which includes a third control section and a fourth control section. The second converter is electrically connected to at least one second battery cluster through the third control section, and the fourth control section is communicatively connected to the battery monitoring unit and control module of the battery device located in the second compartment.

[0036] In the above scheme, the first converter is electrically connected to at least one first battery cluster through a first control part, and the second control part is communicatively connected to the control module. While realizing the input or output of electrical energy of the battery device located in the first compartment, it can improve the accuracy of data acquisition of the battery device. The second converter is electrically connected to at least one second battery cluster through a third control part, and the fourth control part is communicatively connected to the control module. While realizing the input or output of electrical energy of the battery device located in the second compartment, it can improve the accuracy of data acquisition of the battery device.

[0037] In one or more embodiments of the first aspect, the first converter is integrated with the first control unit; and / or, the second converter is integrated with the third control unit.

[0038] In the above scheme, the first converter and the first control unit are integrated into one unit; and / or, the second converter and the third control unit are integrated into one unit. This simplifies the assembly process of the energy storage system and improves the assembly efficiency of the energy storage system.

[0039] In one or more embodiments of the first aspect, each first battery cluster is provided with a first converter, and each second battery cluster is provided with a second converter.

[0040] In the above scheme, the first battery cluster corresponds one-to-one with the first converter, reducing the power requirements of the first converter and improving the stability of the power input or output of the first battery cluster. The second battery cluster corresponds one-to-one with the second converter, reducing the power requirements of the second converter and improving the stability of the power input or output of the second battery cluster.

[0041] In one or more embodiments of the first aspect, each first battery cluster includes six battery devices connected in series; and / or, each second battery cluster includes six battery devices connected in series.

[0042] In the above scheme, each first converter can input or output electrical energy to six battery devices. Multiple first converters are electrically connected to multiple first battery clusters, reducing the risk of interference between multiple first battery clusters and improving the performance of the first compartment. Each second converter can input or output electrical energy to six battery devices. Multiple second converters are electrically connected to multiple second battery clusters, reducing the risk of interference between multiple second battery clusters and improving the performance of the second compartment.

[0043] In one or more embodiments of the first aspect, the maximum operating voltage of the first converter is 1500V; and / or, the maximum operating voltage of the second converter is 1500V.

[0044] In the above scheme, a first battery cluster is electrically connected to a first converter with a maximum operating voltage of 1500V, so that the first battery cluster can be adapted to the 1500V operating voltage. A second battery cluster is electrically connected to a second converter with a maximum operating voltage of 1500V, so that the second battery cluster can be adapted to the 1500V operating voltage, thereby improving the performance of the energy storage system.

[0045] In one or more embodiments of the first aspect, the energy storage system further includes a thermal management module for thermal management of a plurality of battery devices in a first compartment and a second compartment; at least a portion of the thermal management module is housed in the first compartment.

[0046] In the above scheme, at least a portion of the thermal management module is housed within the first compartment, allowing at least a portion of the thermal management module to be transported synchronously with the first compartment. Furthermore, some pipelines can be connected in advance before transportation, improving the ease of installation of the energy storage system.

[0047] In one or more embodiments of the first aspect, the dimension of the first compartment along the height direction is greater than the dimension of the second compartment along the height direction.

[0048] In the above scheme, at least part of the thermal management module is housed in the first compartment. Since the dimension of the first compartment along the height direction is larger than that of the second compartment along the height direction, the thermal management module can utilize the space in the height direction of the first compartment without occupying too much space in the width and length directions of the first compartment, which is beneficial to improving the area energy density of the energy storage system.

[0049] In one or more embodiments of the first aspect, the entire thermal management module is housed within the first compartment.

[0050] In the above scheme, the entire thermal management module is housed within the first compartment, allowing the thermal management module to be transported synchronously with the first compartment. Furthermore, most of the pipelines can be connected in advance before transportation, improving the installation convenience of the energy storage system.

[0051] In one or more embodiments of the first aspect, the first compartment includes a first sub-compartment and a second sub-compartment, the first compartment has a first isolation layer that separates the first sub-compartment and the second sub-compartment, the first sub-compartment is located above the second sub-compartment, the entire thermal management module is housed in the first sub-compartment, and the battery device located in the first compartment is housed in the second sub-compartment.

[0052] In the above scheme, the thermal management module and battery unit can be assembled using the first isolation layer as the assembly reference. The thermal management module is located above the battery unit, and it can shield the battery unit from sunlight, reducing sunlight exposure and improving the temperature uniformity of each battery unit.

[0053] In one or more embodiments of the first aspect, the energy storage system further includes a converter, the converter including a first converter disposed in the first compartment, the first converter being electrically connected to a battery device located in the first compartment.

[0054] The first compartment also includes a third sub-compartment. The first isolation layer further separates the first sub-compartment and the third sub-compartment. The first sub-compartment is located above the third sub-compartment. The first compartment has a second isolation layer that separates the second sub-compartment and the third sub-compartment. The second and third sub-compartments are arranged along the length of the first compartment. The first converter is housed in the third sub-compartment.

[0055] In the above scheme, by accommodating the first converter in the third sub-compartment, the first converter and the battery device located in the second sub-compartment can be arranged along the length direction, which facilitates the installation and independent maintenance of the first converter and the battery device, and helps to improve the installation and maintenance efficiency of the energy storage system.

[0056] In one or more embodiments of the first aspect, the height of the first compartment is 2700mm-2900mm, and the height of the second compartment is 2300mm-2500mm.

[0057] In the above scheme, setting the height of the first compartment is relatively large, which allows the thermal management module to utilize the space in the height direction of the first compartment without occupying the space in the width and length directions of the first compartment, which is beneficial to improving the area energy density of the energy storage system. In addition, setting the height of the second compartment is relatively small, which allows the second compartment to have a large energy while reducing its volume, which is beneficial to improving the volumetric energy density of the second compartment.

[0058] In one or more embodiments of the first aspect, the first compartment includes a first sub-compartment and a second sub-compartment, the first compartment has a first isolation layer that separates the first sub-compartment and the second sub-compartment, the second sub-compartment is located below the first sub-compartment, and the battery device located in the first compartment is accommodated in the second sub-compartment.

[0059] The thermal management module includes a fan and a condenser. The fan is used to dissipate heat from the condenser. The fan and condenser are located in the first sub-compartment, and the top and sides of the first sub-compartment are provided with ventilation openings.

[0060] In the above design, the fan and condenser are relatively large and are positioned in the first sub-compartment in the vertical direction. This maximizes the use of space in the first compartment while accommodating as many battery devices as possible, thereby increasing the energy capacity of the first compartment. Furthermore, the ventilation openings on the top and sides of the first sub-compartment not only ensure comprehensive heat exchange for the battery devices within the compartment but also improve the fan's heat dissipation effect on the condenser, allowing the battery devices to operate at suitable temperatures. This contributes to higher charge and discharge efficiency of the energy storage system.

[0061] In one or more embodiments of the first aspect, the first compartment further includes a third sub-compartment, a first isolation layer further separates the first sub-compartment and the third sub-compartment, the first sub-compartment is located above the third sub-compartment, the first compartment has a second isolation layer, the second isolation layer separates the second sub-compartment and the third sub-compartment, the second sub-compartment and the third sub-compartment are arranged along the length direction of the first compartment; the battery device includes a thermal management component, the thermal management module further includes a pumping device, a heat exchanger, a compressor and a throttling device, the pumping device, the heat exchanger and the thermal management component located in the first compartment are connected to form a first coolant circulation loop, the pumping device, the heat exchanger and the thermal management component located in the second compartment are connected to form a second coolant circulation loop, the compressor, the condenser, the throttling device and the heat exchanger are connected to form a refrigerant circulation loop; at least one of the heat exchanger, the pumping device, the compressor and the throttling device is housed in the third sub-compartment.

[0062] In the above scheme, at least one of the relatively small heat exchanger, pumping device, compressor and throttling device can be housed in the third sub-compartment. This allows for full utilization of the internal space of the first compartment without occupying as much space as possible for the battery device, making the structure of the energy storage system more compact and improving the volumetric energy density of the energy storage system.

[0063] In one or more embodiments of the first aspect, the energy storage system further includes a converter, the converter including a first converter disposed in a first compartment, the first converter being electrically connected to a plurality of battery devices located in the first compartment; the plurality of battery devices and the first converter are housed in a second sub-compartment, and the first converter is located below the plurality of battery devices.

[0064] In the above scheme, the first converter is positioned relatively low, which facilitates its installation and maintenance.

[0065] In one or more embodiments of the first aspect, the height of the first compartment is 2600mm-2800mm, and the height of the second compartment is 2300mm-2500mm.

[0066] In the above scheme, setting the height of the first compartment to be relatively large allows some thermal management modules to utilize the space in the height direction of the first compartment without occupying too much space in the width and length directions of the first compartment, which is beneficial to improving the area energy density of the energy storage system. In addition, setting the height of the second compartment to be relatively small allows the second compartment to have a large energy capacity while reducing its volume, which is beneficial to improving the volumetric energy density of the second compartment.

[0067] In one or more embodiments of the first aspect, the energy storage system further includes a third compartment and a thermal management module, the thermal management module being used to perform thermal management on a plurality of battery devices in the first compartment and the second compartment, the third compartment and the second compartment being arranged along a direction intersecting the height direction; wherein the thermal management module is housed in the third compartment.

[0068] In the above scheme, by arranging a portion of the control module and the second compartment along a direction intersecting the height direction, the interference of the thermal management module on the battery device can be reduced, thus improving the operational stability of the battery device. Furthermore, the maintenance of both the battery device and the thermal management module is relatively convenient.

[0069] In one or more embodiments of the first aspect, the energy storage system further includes a power distribution module housed in a third compartment.

[0070] In the above scheme, since the power distribution module requires frequent manual intervention or maintenance, accommodating the power distribution module in the third compartment can significantly improve the convenience of installation and maintenance of the energy storage system.

[0071] In one or more embodiments of the first aspect, the first compartment includes a second sub-compartment and a third sub-compartment, the first compartment has a second isolation layer that separates the second sub-compartment and the third sub-compartment, the second sub-compartment and the third sub-compartment are arranged along the length of the first compartment, and the battery device located in the first compartment is accommodated in the second sub-compartment; the energy storage system further includes a converter that is electrically connected to the battery device, the converter includes a first converter disposed in the third sub-compartment, the first converter being electrically connected to the battery device located in the first compartment.

[0072] In the above scheme, the first converter is located on one side of the first compartment along its length, which facilitates the maintenance of the first converter.

[0073] In one or more embodiments of the first aspect, the control module is housed within the second compartment.

[0074] In the above scheme, the height of the second compartment is relatively low, and at least part of the control module can be housed in the second compartment, which can improve the convenience of installation and maintenance of the control module.

[0075] In one or more embodiments of the first aspect, the second compartment includes a fourth sub-compartment and a fifth sub-compartment, the second compartment has a third isolation layer that separates the fourth sub-compartment and the fifth sub-compartment, the fourth sub-compartment and the fifth sub-compartment are arranged along the length of the first compartment; the battery device located in the second compartment is housed in the fourth sub-compartment, and the control module is housed in the fifth sub-compartment.

[0076] In the above scheme, the control module is placed on one side of the second compartment along the length of the first compartment, which can further improve the convenience of installation and maintenance of the control module.

[0077] In one or more embodiments of the first aspect, the energy storage system includes a power distribution module and a fire control module, the control module and the fire control module being electrically connected to the power distribution module; both the power distribution module and the fire control module are housed in a fifth sub-compartment.

[0078] In the above scheme, by setting the power distribution module and fire control module in the fifth sub-compartment, the height of the power distribution module and fire control module is low, which facilitates the maintenance and repair of the power distribution module and fire control module.

[0079] In one or more embodiments of the first aspect, the energy storage system further includes a converter electrically connected to a battery device; the converter includes a second converter disposed in a second compartment, the second converter being electrically connected to a battery device located in the second compartment, and the second converter being housed in a fourth sub-compartment.

[0080] In the above scheme, the fourth sub-compartment houses the second converter and the battery device, which can reduce the space waste in the fourth sub-compartment and improve the space utilization rate of the fourth sub-compartment. In addition, arranging the second converter and the battery device in the same sub-compartment facilitates the wiring connection between the two and helps to improve the installation and maintenance convenience of the energy storage system.

[0081] In one or more embodiments of the first aspect, the energy storage system further includes a converter electrically connected to a battery device; the converter includes a second converter disposed in a second compartment, the second converter being electrically connected to a battery device located in the second compartment, and the second converter being housed in a fifth sub-compartment.

[0082] In the above scheme, the second converter is housed in the fifth sub-compartment, which facilitates the maintenance of the second converter.

[0083] In one or more embodiments of the first aspect, the dimensions of the first and second compartments along their length are consistent with the dimensions along the length of a standard container, and the dimensions of the first and second compartments along their width are consistent with the dimensions along the width of a standard container.

[0084] In the above scheme, the footprint of the first and second warehouses is the same as that of a standard container, which can reduce the transportation difficulty and transportation costs of the first and second warehouses.

[0085] In one or more embodiments of the first aspect, the total energy of the energy storage system is 9MWh-11MWh.

[0086] In the above scheme, the energy storage system can have a high energy level.

[0087] In one or more embodiments of the first aspect, the total weight of the first compartment and the components disposed in the first compartment is less than or equal to 36 tons; and / or, the total weight of the second compartment and the components disposed in the second compartment is less than or equal to 36 tons.

[0088] The above solution enables the energy storage system to be adapted to most maritime regulations, improving the transportation convenience of the energy storage system.

[0089] In one or more embodiments of the first aspect, the battery cell is a stacked battery cell.

[0090] In the above scheme, the stacked battery cells have a high energy density. Setting the battery cells of the energy storage system as stacked battery cells can enable the energy storage system to have a large energy within a limited space.

[0091] In one or more embodiments of the first aspect, the sum of the dimensions of the first compartment along the height direction and the dimensions of the second compartment along the height direction is greater than or equal to the dimension of a standard container along the height direction.

[0092] In the above scheme, the first and second compartments have more space in the height direction, which is conducive to setting more battery devices in the height direction in the first and second compartments and improving the volumetric energy density of the energy storage system.

[0093] In one or more embodiments of the first aspect, the standard container is a 20-foot standard container.

[0094] In the above scheme, the 20-foot standard container can meet most of the rules for sea transport. The first and second compartments are designed with reference to the 20-foot standard container, which helps to make the energy storage system have better transportation convenience.

[0095] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0096] Figure 1This application provides schematic diagrams of the structure of an energy storage system according to some embodiments.

[0097] Figure 2 This is a schematic diagram of the structure of a battery device provided in some embodiments of this application;

[0098] Figure 3 This is a schematic diagram of the structure of a battery cell provided in some embodiments of this application;

[0099] Figure 4 This is a schematic diagram of the structure of a battery device provided in some embodiments of this application;

[0100] Figure 5 Schematic diagrams of the energy storage system provided in some embodiments of this application;

[0101] Figure 6 The diagram shows the structural block diagrams of the control module, the first sub-control module, the second sub-control module, and the battery device in the energy storage system provided in some embodiments of this application.

[0102] Figure 7 A structural block diagram of a converter, a first sub-control module, a second sub-control module, and a battery device in an energy storage system provided in some embodiments of this application;

[0103] Figure 8 A schematic diagram of the structure of an energy storage system provided for some embodiments of this application (the thermal management module is housed in the first sub-compartment);

[0104] Figure 9 A schematic diagram of the structure of an energy storage system provided for some embodiments of this application (the thermal management module is housed in the first sub-compartment and the third sub-compartment);

[0105] Figure 10 This is a schematic diagram of the structure of a thermal management module provided in some embodiments of this application;

[0106] Figure 11 A schematic diagram of the structure of an energy storage system provided for some embodiments of this application (the control module is housed in the fifth sub-compartment);

[0107] Figure 12 Assembly diagrams of the second compartment and control module provided for some embodiments of this application;

[0108] Figure 13 Assembly drawings of the second compartment and control module provided for some embodiments of this application;

[0109] Figure 14 Assembly drawings of a first compartment, a second compartment, and a third compartment provided for some embodiments of this application.

[0110] Icons: 10-Battery unit; 1a-Battery cell assembly; 1-Battery cell; 11-Casing; 111-First wall; 112-Second wall; 12-Electrode terminals; 2-Box; 21-First box; 22-Second box; 3-Thermal management components; 4-Pressure relief mechanism; 20-First compartment; 201-First sub-compartment; 202-Second sub-compartment; 203-Third sub-compartment; 204-First isolation layer; 205-Second isolation layer; 30-Second compartment; 301-Fourth sub-compartment; 302-Fifth sub-compartment; 303-Third isolation layer; 40-Control module; 401-Power distribution module; 402-Fire control module; 403-First sub-control module; 40 31-First control section; 4032-Second control section; 404-Second sub-control module; 4041-Third control section; 4042-Fourth control section; 50-Thermal management module; 501-Condenser; 502-Pumping device; 503-Heat exchanger; 504-Compressor; 505-Throttling device; 506-Fan; 507-First cooling circulation loop; 508-Second cooling circulation loop; 509-Refrigerant circulation loop; 60-Converter; 601-First converter; 602-Second converter; 80-Third compartment; 100-Energy storage system; X-Length direction of the first compartment; Y-Width direction of the first compartment; Z-Height direction. Detailed Implementation

[0111] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0112] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0113] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0114] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0115] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0116] In this application, the battery cell may include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, etc., and the embodiments of this application are not limited thereto. The battery cell may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited thereto.

[0117] The battery mentioned in the embodiments of this application may be a single physical module comprising one or more battery cells to provide higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, parallel, or mixed via a busbar.

[0118] In some embodiments, the battery device may be a battery module; when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0119] In some embodiments, the battery device may be a battery pack, which includes a housing and individual battery cells, with the individual battery cells or battery modules housed within the housing.

[0120] In some embodiments, the energy storage system includes energy storage containers, energy storage cabinets, etc.

[0121] A single battery cell typically includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of a single battery cell, active ions (such as lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, prevents short circuits while allowing active ions to pass through.

[0122] Optionally, the electrode assembly has a stacked structure.

[0123] Optionally, the electrode assembly can be cylindrical, flat, or polygonal, etc.

[0124] In some embodiments, the energy storage system may include a battery unit and a housing, with the battery unit housed within the housing. The battery unit includes multiple individual battery cells.

[0125] In some embodiments, the energy storage system may further include a converter electrically connected to the battery device to convert the DC power of the battery device into AC power so as to enable the battery device to output power, or to convert the AC power of the external circuit into DC power so as to enable the battery device to store power.

[0126] In some embodiments, the energy storage system may further include a control module for electrically controlling the battery device.

[0127] In some embodiments, the energy storage system may further include a thermal management module for managing the temperature of the battery device.

[0128] Energy storage systems can include energy storage power stations, wind power systems, solar power systems, mobile power systems, or temporary power supply systems. Energy storage power stations store electrical energy during off-peak hours and provide power to users or electrical equipment during peak hours. Wind power systems collect wind energy from wind turbines, convert it into electricity, and then store it in an energy storage system. Solar power systems convert solar energy into electricity, store it in an energy storage system, and supply it to users as needed. Mobile power systems can power equipment in areas inaccessible by the mains grid, such as remote mountainous areas and isolated wilderness areas. Temporary power supply systems can provide power to users when there is insufficient electricity.

[0129] In energy storage systems, cramming as many battery devices as possible into a standard shipping container would result in an overweight container. Furthermore, to meet shipping regulations, the internal space of a standard container cannot be fully utilized, leading to a lower volumetric energy density. Additionally, the individual battery cells in typical energy storage systems occupy too much space in the container's height, resulting in a smaller number of battery devices that can be stacked vertically, further reducing the volumetric energy density and overall energy of the energy storage system.

[0130] In view of this, this application provides an energy storage system, which includes a first compartment, a second compartment, a control module, and multiple battery devices. Multiple battery devices are housed in both the first and second compartments, which are stacked along their height, with the first compartment positioned above the second compartment. At least one of the first and second compartments has a height dimension smaller than that of a standard shipping container. The control module is used to electrically control the multiple battery devices within the first and second compartments, and at least one of the first and second compartments houses the control module. Each battery device comprises multiple battery cells, and each battery cell includes a casing. The width and height of the casing are both less than its length. The length of the casing is 465mm-525mm, and / or the width is 49mm-60mm, and / or the height is 163mm-184mm. Along the height direction, the battery devices in the first compartment are arranged in 9 rows, with multiple battery devices in each row arranged along the length direction of the first compartment. And / or, along the height direction, the battery devices in the second compartment are arranged in 9 rows, with multiple battery devices in each row arranged along the length direction of the first compartment. On the one hand, because the first and second compartments are modularly combined along the height direction, and the components in the first and second compartments are integrated into a complete system through a control module, the first compartment and its components are transported independently while meeting transportation requirements, and the second compartment and its components are transported independently, forming a high-energy storage system after transportation. This approach allows for the full utilization of the internal spaces of both the first and second compartments, while simultaneously ensuring both high energy density and ease of transport in the energy storage system. By employing battery cells whose width and height are both less than their length, and by controlling the dimensions of the battery cell casings within a reasonable range, the internal space of the battery pack, including these cells, can be fully utilized, thereby increasing the energy density of the battery pack. Furthermore, stacking the battery packs in the first and / or second compartments nine layers along the height direction allows for maximum utilization of the vertical space in both compartments, further enhancing the volumetric energy density of the energy storage system and resulting in a higher energy density.

[0131] The energy storage system is described below with reference to the accompanying drawings.

[0132] According to some embodiments of this application, please refer to Figures 1-14The energy storage system 100 includes a first compartment 20, a second compartment 30, a control module 40, and multiple battery devices 10. Multiple battery devices 10 are housed within both the first compartment 20 and the second compartment 30. The first compartment 20 and the second compartment 30 are stacked along the height direction Z, with the first compartment 20 located above the second compartment 30. At least one of the first compartment 20 and the second compartment 30 has a height dimension Z smaller than that of a standard shipping container. The control module 40 is used for electrical control of the multiple battery devices 10 within the first compartment 20 and the second compartment 30. At least one of the first compartment 20 and the second compartment 30 houses the control module 40. Each battery device 10 includes multiple battery cells 1, and each battery cell 1 includes a casing 11. The width and height of the casing 11 are both less than the length of the casing 11. The length of the casing 11 is 465mm-525mm, and / or the width of the casing 11 is 49mm-60mm, and / or the height of the casing 11 is 163mm-184mm. Along the height direction Z, the battery devices 10 in the first compartment 20 are arranged in 9 rows, and multiple battery devices 10 in each row are arranged along the length direction X of the first compartment. And / or, along the height direction Z, the battery devices 10 in the second compartment 30 are arranged in 9 rows, and multiple battery devices 10 in each row are arranged along the length direction X of the first compartment.

[0133] In some embodiments, the battery device 10 may include a housing 2 and a battery cell 1, with the housing 2 accommodating the battery cell 1. The housing 2 contains a sealed space for accommodating the battery cell 1. The housing 2 can have various structures. In some embodiments, the housing 2 may include a first housing 21 and a second housing 22, which are interlocked. The first housing 21 and the second housing 22 can have various shapes, such as cuboids. The first housing 21 may be a hollow structure open on one side, and the second housing 22 may also be a hollow structure open on one side, with the open side of the second housing 22 interlocking with the open side of the first housing 21, thus forming a housing 2 with a sealed space. Alternatively, the first housing 21 may be a hollow structure open on one side, and the second housing 22 may be a plate-like structure, with the second housing 22 interlocking with the open side of the first housing 21, thus forming a housing 2 with a accommodating space.

[0134] In the battery device 10, there are multiple battery cells 1. These multiple battery cells 1 can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells 1 are connected in both series and parallel. Alternatively, multiple battery cells 1 can be first connected in series, parallel, or in a mixed manner to form a battery cell assembly 1a, and then the multiple battery cell assemblies 1a can be connected in series, parallel, or in a mixed manner to form a whole, which is then housed within the housing 2. Another option is that all battery cells 1 can be directly connected in series, parallel, or in a mixed manner, and then the whole assembly consisting of all battery cells 1 is housed within the housing 2.

[0135] In some embodiments, the battery device 10 may also be a battery module without a housing 2, and the battery module may be directly arranged in the first compartment 20 and / or the second compartment 30.

[0136] The first compartment 20 contains multiple battery devices 10. The second compartment 30 contains multiple battery devices 10. The number of battery devices 10 in the first compartment 20 and the number of battery devices 10 in the second compartment 30 may be the same or different.

[0137] The battery device 10 may consist of multiple battery cells 1 forming a single battery cell assembly 1a, with all battery cells 1 of the battery device 10 arranged along the width direction of the outer casing 11. Alternatively, the multiple battery cells 1 of the battery device 10 may form multiple battery cell assemblies 1a, with the multiple battery cells 1a of each battery cell assembly 1a arranged along the width direction of the outer casing 11. In embodiments where the battery device 10 includes multiple battery cell assemblies 1a, the multiple battery cell assemblies 1a may be arranged along the length direction X of the first compartment; or along the height direction Z; or along the width direction Y of the first compartment.

[0138] In some embodiments, the battery cell 1 further includes an electrode terminal 12, which may be disposed at one end of the length direction of the housing 11, one end of the width direction of the housing 11, or one end of the height direction of the housing 11.

[0139] Multiple battery cells 1 are arranged along the width direction of the housing 11 to form a battery cell assembly 1a. Electrode terminals 12 are disposed at at least one end of the housing 11, such that the electrode terminals 12 are not disposed between two adjacent housings 11 in the battery cell assembly 1a, thereby making the arrangement of battery cells 11 in the battery cell assembly 1a more compact along the width direction of the housing 11. The electrode terminals 12 are disposed at at least one end of the housing 11 along the length direction of the housing 11, so that multiple electrode terminals 12 can share the space on one side of the battery cell assembly 1a along the length direction of the housing 11, reducing the waste of internal space of the battery device 10.

[0140] The first compartment 20 and the second compartment 30 are stacked along the height direction Z, with the first compartment 20 located above the second compartment 30, so that the second compartment 30 supports the first compartment 20. The length direction X of the first compartment can be the same as the length direction of the second compartment 30. The width direction Y of the first compartment can be the same as the width direction of the second compartment 30. The height direction of both the first compartment 20 and the second compartment 30 can be the same as the height direction Z.

[0141] At least one of the first compartment 20 and the second compartment 30 has a dimension along the height direction Z that is smaller than that of a standard container along the height direction Z. This can be because both the first compartment 20 and the second compartment 30 have dimensions along the height direction Z that are smaller than that of a standard container along the height direction Z; or one of the first compartment 20 and the second compartment 30 has a dimension along the height direction Z that is smaller than that of a standard container along the height direction Z, while the other has a dimension greater than or equal to that of a standard container along the height direction Z.

[0142] Along the length direction X of the first compartment, the dimensions of the first compartment 20 may be equal to or different from the dimensions of a standard container along its length direction; along the width direction Y of the first compartment, the dimensions of the first compartment 20 may be equal to or different from the dimensions of a standard container along its width direction; along the length direction X of the first compartment, the dimensions of the second compartment 30 may be equal to or different from the dimensions of a standard container along its width direction; along the width direction Y of the first compartment, the dimensions of the second compartment 30 may be equal to or different from the dimensions of a standard container along its width direction. A standard container can be a container of standard dimensions used in transportation, such as 20 feet, 30 feet, 40 feet, or 45 feet, meeting the corresponding standards, with corresponding length, width, and height dimensions. Standard containers can be referenced in GB / T1413-2023 Series 1 Container Classification, Dimensions, and Rated Mass.

[0143] A 20-foot container can include: a length dimension of 6058mm with a tolerance of 0mm-6mm; a width dimension of 2438mm with a tolerance of 0mm-5mm; and a height dimension (Z) of 2896mm, 2591mm, or no greater than 2438mm with a tolerance of 0mm-5mm. Note that dimensions smaller than the standard container's height dimension (Z) can be understood as being less than 2896mm.

[0144] A 30-foot container can include: a length dimension of 9125mm with a tolerance of 0mm-10mm; a second dimension of 2438mm with a tolerance of 0mm-5mm; and a height dimension (Z) of 2896mm, 2591mm, or no greater than 2438mm with a tolerance of 0mm-5mm. Note that dimensions smaller than the standard container's height dimension (Z) can be understood as being less than 2896mm.

[0145] A 40-foot container can include: a length dimension of 12192mm with a tolerance of 0mm-10mm; a width dimension of 2438mm with a tolerance of 0mm-5mm; and a height dimension (Z) of 2896mm, 2591mm, or no greater than 2438mm with a tolerance of 0mm-5mm. Note that dimensions smaller than the standard container's height dimension (Z) can be understood as being less than 2896mm.

[0146] A 45-foot container can include: a length dimension of 13716mm with a tolerance of 0mm-10mm; a width dimension of 2438mm with a tolerance of 0mm-5mm; and a height dimension (Z) of 2591mm or 2896mm with a tolerance of 0mm-5mm. Note that a dimension smaller than the standard container's height dimension (Z) can be understood as being smaller than 2896mm.

[0147] Alternatively, for containers of various sizes, dimensions within ±5% of their dimensions can be considered as dimensions within tolerance.

[0148] In some embodiments, the energy storage system 100 includes a first battery monitoring circuit and a second battery monitoring circuit. The first battery monitoring circuit is used to collect first data of the battery device 10 located in the first compartment 20, and the second battery monitoring circuit is used to collect second data of the battery device 10 located in the second compartment 30. The control module 40 is used to determine the operating status data of the energy storage system 100. The operating status data of the energy storage system 100 is associated with the first data and the second data.

[0149] In some embodiments, the control module 40 may be a module in the energy storage system 100 used for monitoring and managing the battery device 10, and may serve as a management unit for the battery device 10 in the energy storage system 100. The control module 40 may be communicatively connected to a first battery monitoring circuit and a second battery monitoring circuit, and may receive and process information from the first and second battery monitoring circuits to determine the operating status data of the energy storage system 100 using this information. The control module 40 may monitor information such as current, voltage, power, state of charge, or temperature of the battery device 10 to determine the operating status data of the energy storage system 100. As an example, the control module 40 may include modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0150] At least one of the first compartment 20 and the second compartment 30 may house the control module 40. The entire control module 40 may be housed within the first compartment 20; or the entire control module 40 may be housed within the second compartment 30; or the control module 40 may include multiple control units, with some of these control units housed within the first compartment 20 and others within the second compartment 30, and these multiple control units jointly providing electrical control over the battery device 10 within the first compartment 20 and the second compartment 30. The aforementioned insulation monitoring module, main battery management unit, Ethernet (ETH), and fiber optic conversion module can all be referred to as control units.

[0151] The control module 40 is used to electrically control multiple battery devices 10 within the first compartment 20 and the second compartment 30, meaning that the same control module 40 can simultaneously electrically control all battery devices 10. Here, electrical control refers to low-voltage control.

[0152] In some embodiments, the battery cell 1 includes a housing 11 and electrode terminals 12. The width and height of the housing 11 are both less than its length, so that the housing 11 is rectangular. Along the length direction of the housing 11, the housing 11 has two oppositely disposed first wall portions 111. The electrode terminals 12 are two terminals with opposite polarities; either both electrode terminals 12 can be disposed on the same first wall portion 111, or the two electrode terminals 12 can be disposed on two separate first wall portions 111. The battery cell 1 may be a short-blade battery cell.

[0153] The length L of the outer casing 11 can be 475mm, 476mm, 477mm, 478mm, 479mm, 480mm, 481mm, 482mm, 483mm, 484mm, 485mm, 486mm, 487mm, 488mm, 489mm, 490mm, 491mm, 492mm, 493mm, 494mm, 495mm, 496mm, 497mm, 498mm, 499mm, or 500mm. Point values ​​of any one of 501mm, 502mm, 503mm, 504mm, 505mm, 506mm, 507mm, 508mm, 509mm, 510mm, 511mm, 512mm, 513mm, 514mm, 515mm, 516mm, 517mm, 518mm, 519mm, 520mm, 521mm, 522mm, 523mm, 524mm, and 525mm, or point values ​​between any two of them.

[0154] In some embodiments, the length of the outer shell 11 extends along the length direction X of the first compartment, and it is not required that the length of the outer shell 11 be completely parallel to the length direction X of the first compartment; they can be approximately parallel.

[0155] The width K of the outer casing 11 can be any one of 49mm, 49.5mm, 50mm, 50.5mm, 51mm, 51.5mm, 52mm, 52.5mm, 53mm, 53.5mm, 54mm, 54.4mm, 54.5mm, 55mm, 55.5mm, 56mm, 56.5mm, 57mm, 57.5mm, 58mm, 58.5mm, 59mm, 59.5mm, and 60mm, or a value between any two.

[0156] In some embodiments, the width of the outer casing 11 extends along the width direction Y of the first compartment, and it is not required that the width of the outer casing 11 be completely parallel to the width direction Y of the first compartment; they can be approximately parallel.

[0157] The height H of the outer casing 11 can be any one of 163mm, 164mm, 165mm, 166mm, 167mm, 168mm, 169mm, 170mm, 171mm, 172mm, 173mm, 173.5mm, 174mm, 175mm, 176mm, 177mm, 178mm, 179mm, 180mm, 181mm, 182mm, 183mm, 184mm or any value between two of them.

[0158] In some embodiments, the height of the housing 11 extends along the height direction Z, and it is not required that the height of the housing 11 be completely parallel to the height direction Z, but can be approximately parallel.

[0159] Optionally, adjacent compartments can be fixedly connected. For example, the first compartment 20 and the second compartment 30 can be fixed by welding, snap-fitting, locking, bolting, or using fasteners. This helps reduce the risk of the two compartments shifting during stacking, thereby improving the structural stability of the energy storage device.

[0160] Optionally, in addition to placing battery devices 10 and other components in the first compartment 20 and the second compartment 30, the energy storage system 100 may also include other compartments stacked above the first compartment 20 and the second compartment 30. These other compartments also contain battery devices 10. In other words, the energy storage system 100 may include three or more compartments stacked in the height direction Z, with multiple battery devices 10 placed in each compartment to increase the power capacity.

[0161] In some embodiments, the battery devices 10 in the first compartment 20 are arranged in 9 rows, and the battery devices 10 in the second compartment 30 can be arranged in 12 rows. Of course, the battery devices 10 in the second compartment 30 can also be arranged in 9 rows.

[0162] In some embodiments, the battery devices 10 in the second compartment 30 are arranged in 9 rows, and the battery devices 10 in the first compartment 20 can be arranged in 12 rows. Of course, the battery devices 10 in the first compartment 20 can also be arranged in 9 rows.

[0163] In the technical solution of the application embodiment, on the one hand, since the first compartment 20 and the second compartment 30 are modularly combined along the height direction Z, and the components set in the first compartment 20 and the components set in the second compartment 30 are integrated into a complete system through the control module 40, the first compartment 20 and the components set in it are transported independently while meeting transportation conditions, and the second compartment 30 and the components set in it are transported independently, and after transportation, they form a high-energy energy storage system 100. This is beneficial to make full use of the internal space of the first compartment 20 and the internal space of the second compartment 30, while making the energy storage system 100 take into account both high energy and convenient transportation. By using battery cells 1 whose width and height of the outer shell 11 are both smaller than the length of the outer shell 11, and controlling the size of the outer shell 11 of the battery cells 1 within a reasonable range, the internal space of the battery device 10 including the battery cells 1 can be fully utilized by the battery cells 1, thereby improving the energy density of the battery device 10. Furthermore, stacking the battery devices 10 in the first compartment 20 and / or the battery devices 10 in the second compartment 30 in nine layers along the height direction Z allows the space in the first compartment 20 and / or the second compartment 30 in the height direction Z to be utilized as much as possible by the battery devices 10, which is beneficial to improving the volumetric energy density of the energy storage system 100, thereby enabling the energy storage system 100 to have higher energy.

[0164] According to some embodiments of this application, please refer to Figures 1-11 The number of battery devices 10 in the first compartment 20 is equal to the number of battery devices 10 in the second compartment 30.

[0165] In some embodiments, the number of battery devices 10 in the first compartment 20 is equal to the number of battery devices 10 in the second compartment 30. The arrangement of the battery devices 10 in the first compartment 20 and the arrangement of the battery devices 10 in the second compartment 30 may be different.

[0166] In the above scheme, the number of battery devices 10 in the first compartment 20 is equal to the number of battery devices 10 in the second compartment 30, which can improve the compatibility of the first compartment 20 and the second compartment 30 and help reduce the wiring difficulty in the first compartment 20 and the second compartment 30.

[0167] According to some embodiments of this application, please refer to Figures 1-14 The number of battery devices 10 in the first compartment 20 is 36, and / or the number of battery devices 10 in the second compartment 30 is 36.

[0168] In some embodiments, the battery devices 10 in the first compartment 20 can be arranged in 9 rows and 4 columns, and the battery devices 10 in the second compartment 30 can be arranged in 9 rows and 4 columns.

[0169] In the above scheme, the first compartment 20 has 36 battery devices 10, and / or the second compartment 30 has 36 battery devices 10, which enables the energy storage system 100 to have higher energy.

[0170] According to some embodiments of this application, please refer to Figures 1-11 The battery devices 10 in the first compartment 20 are arranged in 4 columns, and multiple battery devices 10 in each column are arranged along the height direction Z. And / or, the battery devices 10 in the second compartment 30 are arranged in 4 columns, and multiple battery devices 10 in each column are arranged along the height direction Z.

[0171] The battery devices 10 in the first compartment 20 can be arranged in 9 rows and 4 columns. The battery devices 10 in the second compartment 30 can also be arranged in 9 rows and 4 columns.

[0172] In the above scheme, the first compartment 20 and / or the second compartment 30 are arranged with four rows of battery devices 10 along the length direction, which can enable the energy storage system 100 to have a large amount of energy while meeting the transportation requirements of the energy storage system 100.

[0173] According to some embodiments of this application, please refer to Figures 1-14 The dimensions of the first compartment 20 along the height direction Z and the second compartment 30 along the height direction Z are both smaller than the dimensions of a standard container along the height direction Z.

[0174] In some embodiments, such as Figure 5 As shown, the dimension H1 of the first compartment 20 along the height direction Z and the dimension H2 of the second compartment 30 along the height direction Z are both less than 2896 mm.

[0175] The dimension of the first compartment 20 along the height direction Z is smaller than that of a standard container along the height direction Z, and the dimension of the second compartment 30 along the height direction Z is also smaller than that of a standard container along the height direction Z. Taking a 20-foot standard container as an example, the height of both the first compartment 20 and the second compartment 30 is less than 2896mm.

[0176] In the above scheme, the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both smaller than those of a standard container along the height direction Z. Compared to a standard container, the first compartment 20 and the second compartment 30 can have a smaller volume for the same energy, thus enabling the first compartment 20 and the second compartment 30 to have a larger volumetric energy density after accommodating the battery device 10.

[0177] According to some embodiments of this application, please refer to Figures 1-11 The dimensions of the first compartment 20 along the height direction Z and the second compartment 30 along the height direction Z are both greater than half the dimensions of a standard container along the height direction Z.

[0178] A standard container fully loaded with battery devices 10 may be overweight. The dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both greater than half the dimensions of the standard container along the height direction Z. This allows for the loading of more battery devices 10 without exceeding the weight limit of the first compartment 20 and the second compartment 30, and the battery devices 10 can make full use of the space of the first compartment 20 and the second compartment 30.

[0179] In the above scheme, the dimensions of the first compartment 20 along the height direction Z and the second compartment 30 along the height direction Z are both greater than half the dimensions of a standard container along the height direction Z, which allows the first compartment 20 and the second compartment 30 to accommodate more battery devices 10 while having a smaller volume.

[0180] According to some embodiments of this application, please refer to Figures 1-11 The length of the outer casing 11 is the dimension of the outer casing 11 along the length direction X of the first compartment, the width of the outer casing 11 is the dimension of the outer casing 11 along the width direction Y of the first compartment, and the height of the outer casing 11 is the dimension of the outer casing 11 along the height direction Z. The dimension of the first compartment 20 in the length direction is greater than the dimension of the first compartment 20 in the width direction. A plurality of battery cells 1 are arranged along the width direction Y of the first compartment to form a battery cell assembly 1a. Each battery cell 1 also includes an electrode terminal 12, which is disposed at at least one end of the outer casing 11 along the length direction X of the first compartment.

[0181] The battery cell 1 includes a casing 11 and electrode terminals 12. The width and height of the casing 11 are both less than its length, making the casing 11 rectangular. Along the length of the casing 11, the casing 11 has two opposing first wall portions 111. The electrode terminals 12 are two terminals with opposite polarities; either both electrode terminals 12 can be located on the same first wall portion 111, or each electrode terminal 12 can be located on a separate first wall portion 111. The battery cell 1 can be a short-blade battery cell.

[0182] In some embodiments, the length of the outer casing 11 extends along the length direction X of the first compartment, and it is not required that the length of the battery cell be completely parallel to the length direction X of the first compartment, but can be approximately parallel.

[0183] In the above scheme, since the influence coefficient of the redundant space in the length direction of the first compartment 20 and the second compartment 30 on the total loading capacity is smaller than that in the width and height directions, placing the electrode terminal 12 at at least one end of the outer casing 11 along the length direction of the first compartment 20 can significantly reduce the space occupied by the electrode terminal 12 in the height direction Z and width direction of the first compartment 20 and the height direction Z and width direction of the second compartment 30, and can significantly reduce the size of the battery cell 1 in the height direction Z and the width direction Y of the first compartment. This further reduces the size of the battery device 10, which includes multiple battery cells 1, in the height direction Z and the width direction Y of the first compartment. More battery devices 10 can be loaded within the limited loading space of the energy storage system 100, thereby increasing the volumetric energy density of the energy storage system 100.

[0184] According to some embodiments of this application, please refer to Figures 1-4 The battery device 10 includes two battery cell assemblies 1a arranged along the length direction X of the first compartment 20, and each battery cell assembly 1a includes a plurality of battery cells 1 arranged along the width direction Y of the first compartment 20.

[0185] Two battery cell modules 1a can be connected in series or in parallel. The number of battery cells 1 in the two battery cell modules 1a can be equal or unequal.

[0186] In the above scheme, two battery cell modules 1a are arranged along the length direction X of the first compartment 20, and multiple battery elevators in each battery cell module 1a are arranged along the width direction Y of the first compartment 20. This arrangement can reduce the size of the battery device 10 in the height direction Z of the first compartment 20, so that the first compartment 20 and the second compartment 30 can accommodate more battery devices 10 in the height direction Z, thereby increasing the volumetric energy density of the energy storage system 100.

[0187] According to some embodiments of this application, please refer to Figures 1-4 The electrode terminals 12 of the battery cell 1 in one battery cell assembly 1a are arranged back-to-back with the electrode terminals 12 of the battery cell 1 in another battery cell assembly 1a.

[0188] The electrode terminals 12 of each battery cell 1 are disposed on the same first wall portion 111 of the battery cell 1 housing 11. Within a battery device 10, along the length direction X, each battery cell 1 in each battery cell assembly 1a has a first wall portion 111 facing away from another battery cell assembly 1a, and the electrode terminals 12 are disposed on the first wall portion 111, so that the electrode terminals 12 of the two battery cell assemblies 1a are arranged back to back.

[0189] In the above scheme, since the electrode terminals 12 of the battery cell 1 in one battery cell assembly 1a are arranged back to back with the electrode terminals 12 of the battery cell 1 in another battery cell assembly 1a, the risk of interference during the assembly of battery cells 1 in different battery cell assemblies 1a can be reduced, and the electrical connection of different battery cells 1 in one battery cell assembly 1a can be more easily achieved in a limited space.

[0190] According to some embodiments of this application, please refer to Figures 1-4 The electrode terminal 12 includes a positive terminal and a negative terminal, which are disposed at the same end of the housing 11 along the length of the housing 11.

[0191] In some embodiments, the orthogonal projections of the positive terminal and the negative terminal at least partially overlap in the same projection plane perpendicular to the height direction Z. This arrangement can further reduce the space occupied by the electrode terminals 12 in the width direction Y of the first housing 20.

[0192] In the above scheme, the positive and negative terminals can share some space, which is beneficial to further improve the energy density of the battery device 10, thereby further improving the energy density of the energy storage system 100.

[0193] According to some embodiments of this application, please refer to Figures 1-4 The battery cell 1 also includes a pressure relief mechanism 4, which is disposed on the housing 11. In the length direction of the housing 11, the pressure relief mechanism 4 and the electrode terminals 12 are respectively located at opposite ends of the housing 11.

[0194] In some embodiments, electrode terminals 12 are disposed on the first wall portion 111, and pressure relief mechanism 4 is disposed on the second wall portion 112. The second wall portion 112 of the outer casing 11 of the battery cell 1 in one battery cell assembly 1a is disposed opposite to the second wall portion 112 of the outer casing 11 of the battery cell 1 in another battery cell assembly 1a.

[0195] In some embodiments, the battery device 10 further includes a separator disposed between two battery cell assemblies 1a along the length X of the first compartment 20. The separator has a pressure relief channel for guiding the emissions from the battery cell 1a during thermal runaway. The two battery cell assemblies 1a sharing a single pressure relief channel reduces space occupancy along the length X of the first compartment 20 and increases the energy density of the battery device 10.

[0196] In the above scheme, the pressure relief mechanism 4 and the electrode terminals 12 are located at opposite ends of the outer casing 11. On the one hand, this reduces the risk of fire caused by short-circuiting the positive and negative terminals due to emissions from the battery cell 1 during thermal runaway. On the other hand, since the pressure relief mechanism 4 of the battery cell 1 in one battery cell assembly 1a is arranged opposite to the pressure relief mechanism 4 of the battery cell 1 in another battery cell assembly 1a, the two battery cell assemblies 1a can share a portion of the pressure relief space, which is beneficial to further improve the energy density of the battery device 10, thereby further improving the energy density of the energy storage system 100.

[0197] According to some embodiments of this application, please refer to Figures 1-4 Two battery cell modules 1a are connected in series, and each battery cell module 1a includes 33-36 battery cells 1 connected in series.

[0198] Two battery cell modules 1a are connected in series, so that the number of battery cells 1 connected in series in the battery device 10 is 66-72.

[0199] Each battery cell assembly 1a may include 33 battery cells 1, 34 battery cells 1, 35 battery cells 1, or 36 battery cells 1.

[0200] In the above scheme, the battery device 10 can have a larger voltage, which is beneficial to improving the charging and discharging efficiency of the energy storage system 100.

[0201] According to some embodiments of this application, please refer to Figures 1-11 Each battery cell assembly 1a comprises 34 battery cells 1, or each battery cell assembly 1a comprises 35 battery cells 1.

[0202] When each battery cell assembly 1a includes 34 battery cells 1, the number of battery cells 1 connected in series in the battery device 10 is 68. Taking battery cell 1 as an example, and the maximum voltage of battery cell 1 is 3.61V, the maximum voltage of the battery device 10 is 245.48V.

[0203] When each battery cell assembly 1a includes 35 battery cells 1, the number of battery cells 1 connected in series in the battery device 10 is 70. Taking the battery cell 1 as a lithium iron phosphate battery cell and the maximum voltage of the battery cell 1 as 3.61V as an example, the maximum voltage of the battery device 10 is 252.7V.

[0204] In the above scheme, when the battery cell assembly 1a has 34 battery cells 1 connected in series, the battery device 10 includes 68 battery cells 1 connected in series. When the battery cell assembly 1a has 35 battery cells 1 connected in series, the battery device 10 includes 70 battery cells 1 connected in series. The battery device 10 has a large voltage, and the energy storage system 100 including the battery device 10 has a high charge and discharge efficiency.

[0205] According to some embodiments of this application, please refer to Figure 8 , Figure 9 , Figures 11-14 The energy storage system 100 also includes a converter 60, which includes a first converter 601. The multiple battery devices 10 located in the first compartment 20 include multiple first battery clusters. The first converter 601 is electrically connected to at least one first battery cluster.

[0206] And / or, the energy storage system 100 also includes a converter 60, which includes a second converter 602. The plurality of battery devices 10 located in the second compartment 30 include a plurality of second battery clusters. The second converter 602 is electrically connected to at least one second battery cluster.

[0207] In some embodiments, one of the first converter 601 and the second converter 602 is disposed within the first compartment 20, and the other is disposed within the second compartment 30.

[0208] In some embodiments, one of the first housing 20 and the second housing 30 houses the first converter 601 and the second converter 602.

[0209] A first converter 601 can be electrically connected to a first battery cluster, or a first converter 601 can be electrically connected to multiple first battery clusters.

[0210] A second converter 602 can be electrically connected to a second battery cluster, or a second converter 602 can be electrically connected to multiple second battery clusters.

[0211] In the above scheme, the first battery cluster is electrically connected via a first converter 601. The first converter 601 can input or output electrical energy from the first battery cluster, allowing multiple first battery clusters to be connected to electrical equipment or the power grid respectively, thereby improving the performance of the first compartment 20. The second battery cluster is electrically connected via a second converter 602. The second converter 602 can input or output electrical energy from the second battery cluster, allowing multiple second battery clusters to be connected to electrical equipment or the power grid respectively, thereby improving the performance of the second compartment 30.

[0212] According to some embodiments of this application, please refer to Figures 6-9 , Figures 11-14The energy storage system 100 also includes a first sub-control module 403, which includes a first control part 4031 and a second control part 4032. The first converter 601 is electrically connected to at least one first battery cluster through the first control part 4031, and the second control part 4032 is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located in the first compartment 20.

[0213] And / or, the energy storage system 100 further includes a second sub-control module 404, which includes a third control section 4041 and a fourth control section 4042. The second inverter 602 is electrically connected to at least one second battery cluster through the third control section 4041, and the fourth control section 4042 is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located in the second compartment 30.

[0214] The main functions of the battery monitoring unit of the battery device 10 include, but are not limited to, monitoring information such as the voltage and temperature of the battery cell 1.

[0215] In some embodiments, one of the first sub-control module 403 and the second sub-control module 404 is disposed within the first compartment 20, and the other is disposed within the second compartment 30.

[0216] The first control section 4031 is the high-voltage section, through which electrical energy is transmitted between the first inverter 601 and the first battery cluster. The second control section 4032 is the low-voltage section, through which communication data is transmitted between the second control section 4032 and the control module 40, enabling the control module 40 to monitor and control the battery device 10 located within the second compartment 30.

[0217] The first inverter 601 and at least one first battery cluster are electrically connected through the first control unit 4031. The first inverter 601 can correspond one-to-one with the first battery cluster, or multiple first battery clusters can be connected to the same first inverter 601. The second control unit 4032 is communicatively connected to the control module 40 to transmit control signals from the first sub-control module 403 to the control module 40, or to transmit instructions from the control module 40 to the first sub-control module 403 for execution, thus establishing a communication connection between the first sub-control module 403 and the control module 40. There can be one first sub-control module 403, which is communicatively connected to the control module 40; or there can be multiple first sub-control modules 403, all of which are communicatively connected to the same control module 40.

[0218] In some embodiments, the energy storage system 100 further includes a second sub-control module 404, which includes a third control section 4041 and a fourth control section 4042. Each second converter 602 is electrically connected to at least one second battery cluster through a third control section 4041, and the fourth control section 4042 is communicatively connected to the control module 40.

[0219] The third control section 4041 is the high-voltage section, through which the power transmission between the second inverter 602 and the second battery cluster is conducted. The fourth control section 4042 is the low-voltage section, through which communication data is transmitted between the fourth control section 4042 and the control module 40, enabling the control module 40 to monitor and control the battery device 10 located within the second compartment 30.

[0220] The second inverter 602 can be paired with the second battery cluster in a one-to-one manner, or the second inverter 602 can be paired with multiple second battery clusters.

[0221] The fourth control unit 4042 is communicatively connected to the control module 40 to transmit control signals from the second sub-control module 404 to the control module 40, or to transmit instructions from the control module 40 to the second sub-control module 404 for execution, thereby establishing a communication connection between the second sub-control module 404 and the control module 40. There can be one second sub-control module 404 communicating with the control module 40; or there can be multiple second sub-control modules 404, all communicating with the same control module 40.

[0222] In some embodiments, the energy storage system 100 further includes a first sub-control module 403 and a second sub-control module 404. The second control portion 4032 of the first sub-control module 403 is communicatively connected between the first battery monitoring circuit and the control module 40, and the fourth control portion 4042 of the second sub-control module 404 is communicatively connected between the second battery monitoring circuit and the control module 40.

[0223] In some embodiments, the second control portion 4032 of the first sub-control module 403 is communicatively connected between the first battery monitoring circuit and the control module 40, and the second control portion 4032 of the first sub-control module 403 is used to forward the first data. The fourth control portion 4042 of the second sub-control module 404 is communicatively connected between the second battery monitoring circuit and the control module 40, and the second sub-control module 404 is used to forward the second data.

[0224] In some embodiments, the second control portion 4032 of the first sub-control module 403 is communicatively connected between the first battery monitoring circuit and the control module 40. The second control portion 4032 of the first sub-control module 403 is used to acquire and process first data and transmit the processed data to the control module 40. The fourth control portion 4042 of the second sub-control module 404 is communicatively connected between the second battery monitoring circuit and the control module 40. The fourth control portion 4042 of the second sub-control module 404 is used to acquire and process second data and transmit the processed data to the control module 40.

[0225] In some embodiments, the first battery monitoring circuit is directly connected to the control module 40, and the second battery monitoring circuit is also directly connected to the control module 40. The control module 40 processes the first data and the second data to determine the operating status data of the energy storage system 100.

[0226] In some embodiments, the energy storage system 100 further includes a first sub-control module 403 and a second sub-control module 404. The second control portion 4032 of the first sub-control module 403 is communicatively connected between the first battery monitoring circuit and the control module 40, and the fourth control portion 4042 of the second sub-control module 404 is communicatively connected between the first battery monitoring circuit and the control module 40.

[0227] The fourth control part 4042 of the second sub-control module 404 may be connected between the second battery monitoring circuit and the control module 40, and is used to forward information such as current, voltage, power, state of charge or temperature of the battery cell 1 of the battery device 10 located in the second compartment 30 to the control module 40 or to process and then forward it to the control module 40.

[0228] The second control part 4032 of the first sub-control module 403 is communicatively connected between the first battery monitoring circuit and the control module 40, enabling the first sub-control module 403 to forward information such as current, voltage, power, state of charge, or temperature of the battery cells 1 of the battery device 10 located in the first compartment 20 to the control module 40, or to process and then forward it to the control module 40. The fourth control part 4042 of the second sub-control module 404 is communicatively connected between the second battery monitoring circuit and the control module 40, enabling the second sub-control module 404 to forward information such as current, voltage, power, state of charge, or temperature of the battery cells 1 of the battery device 10 located in the second compartment 30 to the control module 40, or to process and then forward it to the control module 40.

[0229] By setting a first sub-control module 403 between the first battery monitoring circuit and the control module 40, and setting a second sub-control module 404 between the second battery monitoring circuit and the control module 40, the control system of the energy storage system 100 is made into a three-level framework. This reduces the length and complexity of the communication harness, reduces sampling errors, improves the reliability of the system, and also reduces the requirements for the processor and communication bus, thus reducing the overall cost of the system.

[0230] In the above scheme, the first converter 601 is electrically connected to at least one first battery cluster through the first control part 4031, and the second control part 4032 is communicatively connected to the control module 40. While realizing the input or output of electrical energy of the battery device 10 located in the first compartment 20, it can improve the accuracy of data acquisition of the battery device 10. The second converter 602 is electrically connected to at least one second battery cluster through the third control part 4041, and the fourth control part 4042 is communicatively connected to the control module 40. While realizing the input or output of electrical energy of the battery device 10 located in the second compartment 30, it can improve the accuracy of data acquisition of the battery device 10.

[0231] According to some embodiments of this application, please refer to Figures 6-9 , Figures 11-14 The first converter 601 is integrated with the first control unit 4031; and / or the second converter 602 is integrated with the third control unit 4041.

[0232] The first converter 601 is integrated with the first control section 4031, so that the first converter 601 and the high voltage section of the first sub-control module 403 are integrated, which facilitates the electrical connection between the first converter 601 and the first control section 4031.

[0233] In this embodiment, by integrating the first converter 601 with the corresponding first control part 4031, the integration of the first control part 4031 and the first converter 601 is improved, and the setup difficulty of the first control part 4031 and the first converter 601 is reduced.

[0234] In some embodiments, the second converter 602 is integrated with the corresponding third control unit 4041.

[0235] The second converter 602 is integrated with the third control section 4041, so that the second converter 602 is integrated with the high voltage section of the second sub-control module 404, which facilitates the electrical connection between the second converter 602 and the third control section 4041.

[0236] The integration of the first converter 601 and the first control unit 4031 can be understood as a physical fusion of the two, forming a single unit. During assembly, the assembly of the first converter 601 and the first control unit 4031 can be completed simultaneously in a single step. For example, they can be integrated onto a mounting base, which can be a plate or a housing.

[0237] The integration of the second converter 602 and the third control unit 4041 can be understood as a physical fusion of the two, forming a single unit. During assembly, the assembly of the second converter 602 and the third control unit 4041 can be completed simultaneously in a single step. For example, they can be integrated onto a mounting base, which can be a plate or a housing.

[0238] In the above scheme, the first converter 601 and the first control unit 4031 are integrated into one unit; and / or, the second converter 602 and the third control unit 4041 are integrated into one unit. This simplifies the assembly process of the energy storage system 100 and improves the assembly efficiency of the energy storage system 100.

[0239] In the above scheme, the first converter 601 and the first control unit 4031 are integrated into one unit; and / or, the second converter 602 and the third control unit 4041 are integrated into one unit. This simplifies the assembly process of the energy storage system 100 and improves the assembly efficiency of the energy storage system 100.

[0240] According to some embodiments of this application, please refer to Figures 6-9 , Figures 11-14 Each first battery cluster is equipped with a first inverter 601, and each second battery cluster is equipped with a second inverter 602.

[0241] Each first battery cluster has an equal number of battery devices 10 connected in series. Each first battery cluster is equipped with a corresponding first inverter 601. When the first battery cluster is charging, the first inverter 601 acts as a rectifier to convert electrical energy from external AC power to DC power and store it in the first battery cluster. When the first battery cluster is discharging, the first inverter 601 acts as an inverter to convert the electrical energy stored in the first battery cluster from DC power to AC power and supply it to the electrical equipment.

[0242] Each second battery cluster has an equal number of battery devices 10 connected in series. Each second battery cluster is equipped with a corresponding second inverter 602. When the second battery cluster is charging, the second inverter 602 acts as a rectifier to convert electrical energy from external AC power to DC power and store it in the second battery cluster. When the second battery cluster is discharging, the second inverter 602 acts as an inverter to convert the electrical energy stored in the second battery cluster from DC power to AC power and supply it to the electrical equipment.

[0243] In the above scheme, the first battery cluster corresponds one-to-one with the first inverter 601, which reduces the power requirement of the first inverter 601 and improves the stability of the power input or output of the first battery cluster. The second battery cluster corresponds one-to-one with the second inverter 602, which reduces the power requirement of the second inverter 602 and improves the stability of the power input or output of the second battery cluster.

[0244] According to some embodiments of this application, please refer to Figures 6-9 , Figures 11-14 Each first battery cluster includes six battery devices 10 connected in series; and / or each second battery cluster includes six battery devices 10 connected in series.

[0245] In some embodiments, each first battery cluster includes six battery devices 10 connected in series.

[0246] Taking the first compartment 20, which includes 36 battery devices 10, as an example, every 6 battery devices 10 are connected in series to form a first battery cluster. The 6 first battery clusters are independent of each other, and each first battery cluster is connected to a first inverter 601.

[0247] In some embodiments, each second battery cluster includes six battery devices 10 connected in series.

[0248] Taking the second compartment 30, which includes 36 battery devices 10, as an example, every 6 battery devices 10 are connected in series to form a second battery cluster. The 6 second battery clusters are independent of each other, and each second battery cluster is connected to a second inverter 602.

[0249] In some embodiments, each first battery cluster includes six battery devices 10 connected in series; each second battery cluster includes six battery devices 10 connected in series.

[0250] In an embodiment where 36 battery devices 10 are accommodated in both the first compartment 20 and the second compartment 30, six first inverters 601 correspond to six first battery clusters in the first compartment 20, and six second inverters 602 correspond to six second battery clusters in the second compartment 30.

[0251] In the above scheme, each first converter 60 can realize the input or output of electrical energy from six battery devices 10. Multiple first converters 601 are electrically connected to multiple first battery clusters respectively, reducing the risk of interference between multiple first battery clusters and improving the performance of the first compartment 20. Each second converter 60 can realize the input or output of electrical energy from six battery devices 10. Multiple second converters 602 are electrically connected to multiple second battery clusters respectively, reducing the risk of interference between multiple second battery clusters and improving the performance of the second compartment 30.

[0252] According to some embodiments of this application, please refer to Figures 6-9 , Figures 11-14 The maximum operating voltage of the first converter 601 is 1500V; and / or the maximum operating voltage of the second converter 602 is 1500V.

[0253] In some embodiments, the maximum operating voltage of the first converter 601 is 1500V. In some embodiments, the maximum operating voltage of the second converter 602 is 1500V.

[0254] In some embodiments, the maximum operating voltage of the first converter 601 is 1500V; the maximum operating voltage of the second converter 602 is 1500V.

[0255] Taking a lithium iron phosphate battery cell 1 as an example, the maximum operating voltage of battery cell 1 is 3.65V. Each battery device 10 includes 68 battery cells 1 connected in series, and the maximum operating voltage of each battery device 10 is 248.2V. Each first battery cluster includes 6 battery devices 10 connected in series, and each second battery cluster includes 6 battery devices 10 connected in series. Therefore, the maximum operating voltage of the first battery cluster is 1489.2V, and the maximum operating voltage of the first inverter 601 is 1500V, so that the first inverter 601 can be adapted to the first battery cluster. The maximum operating voltage of the second battery cluster is 1489.2V, and the maximum operating voltage of the second inverter 602 is 1500V, so that the second inverter 602 can be adapted to the second battery cluster.

[0256] In this embodiment, a first battery cluster is electrically connected to a first converter 601 with a maximum operating voltage of 1500V, so that the first battery cluster can be adapted to the 1500V operating voltage. A second battery cluster is electrically connected to a second converter 602 with a maximum operating voltage of 1500V, so that the second battery cluster can be adapted to the 1500V operating voltage, thereby improving the performance of the energy storage system 100.

[0257] In the above scheme, a first battery cluster is electrically connected to a first converter 601 with a maximum operating voltage of 1500V, so that the first battery cluster can be adapted to the 1500V operating voltage. A second battery cluster is electrically connected to a second converter 602 with a maximum operating voltage of 1500V, so that the second battery cluster can be adapted to the 1500V operating voltage, thereby improving the performance of the energy storage system 100.

[0258] According to some embodiments of this application, please refer to Figures 8-13The energy storage system 100 also includes a thermal management module 50, which is used to perform thermal management on a plurality of battery devices 10 in the first compartment 20 and the second compartment 30; at least a portion of the thermal management module 50 is housed in the first compartment 20.

[0259] The thermal management module 50 can manage the temperature of the battery device 10, reducing the risk of temperature runaway of the battery device 10.

[0260] The entire thermal management module 50 can be housed within the first compartment 20; or a portion of the thermal management module 50 can be housed within the first compartment 20, and the other portion within the second compartment 30.

[0261] In the above scheme, at least a portion of the thermal management module 50 is housed within the first compartment 20, which allows at least a portion of the thermal management module 50 to be transported synchronously with the first compartment 20. Furthermore, some pipelines can be connected in advance before transportation, thereby improving the ease of installation of the energy storage system 100.

[0262] According to some embodiments of this application, please refer to Figure 8 and Figure 9 The dimension of the first compartment 20 along the height direction Z is greater than the dimension of the second compartment 30 along the height direction Z.

[0263] The dimension of the first compartment 20 along the height direction Z is larger than that of the second compartment 30 along the height direction Z. This means that when the second compartment 30 is fully loaded with battery devices 10, the first compartment 20 can carry the same number of battery devices 10 as the second compartment 30, and a portion of space is reserved in the height direction Z for the thermal management module 50.

[0264] In the above scheme, at least part of the thermal management module 50 is housed in the first compartment 20. Since the dimension of the first compartment 20 along the height direction Z is larger than that of the second compartment 30 along the height direction Z, the thermal management module 50 can utilize the space in the height direction Z of the first compartment 20 without occupying too much space in the width and length directions X of the first compartment 20, which is beneficial to improving the area energy density of the energy storage system 100.

[0265] According to some embodiments of this application, please refer to Figures 5-8 The entire thermal management module 50 is housed within the first compartment 20.

[0266] The thermal management module 50 is entirely housed within the first compartment 20. It can be located on top of the multiple battery devices 10 within the first compartment 20; or it can be located on one side of the multiple battery devices 10 within the first compartment 20 along the length direction X of the first compartment; or it can be located on one side of the multiple battery devices 10 within the first compartment 20 along the width direction Y of the first compartment.

[0267] In the above scheme, the entire thermal management module 50 is housed within the first compartment 20, which allows the thermal management module 50 to be transported synchronously with the first compartment 20, and most of the pipelines can be connected in advance before transportation, thus improving the installation convenience of the energy storage system 100.

[0268] According to some embodiments of this application, please refer to Figure 8 The first compartment 20 includes a first sub-compartment 201 and a second sub-compartment 202. The first compartment 20 has a first isolation layer 204 that separates the first sub-compartment 201 and the second sub-compartment 202. The first sub-compartment 201 is located above the second sub-compartment 202. The entire thermal management module 50 is housed in the first sub-compartment 201, and the battery device 10 located in the first compartment 20 is housed in the second sub-compartment 202.

[0269] In some embodiments, such as Figure 8 As shown, the dimension H1 of the first compartment 20 along the height direction Z and the dimension H2 of the second compartment 30 along the height direction Z are both less than 2896 mm.

[0270] A first insulating layer 204 separates the first sub-compartment 201 and the second sub-compartment 202, making them independent of each other. The first sub-compartment 201 is located above the second sub-compartment 202. The thermal management module 50 is housed in the first sub-compartment 201 and the battery device 10 is housed in the second sub-compartment 202. The first insulating layer 204 separates the thermal management module 50 from the battery device 10 located within the first compartment 20.

[0271] In the above scheme, the thermal management module 50 and the battery device 10 can be assembled using the first isolation layer 204 as the assembly reference. The thermal management module 50 is located above the battery device 10. The thermal management module 50 can shield the battery device 10 from sunlight, reduce the exposure of the battery device 10 to sunlight, and improve the temperature uniformity of each battery device 10.

[0272] According to some embodiments of this application, please refer to Figure 8 The energy storage system 100 also includes a converter 60, which includes a first converter 601 disposed in the first compartment 20 and electrically connected to the battery device 10 located in the first compartment 20.

[0273] The first compartment 20 also includes a third sub-compartment 203. The first isolation layer 204 further separates the first sub-compartment 201 and the third sub-compartment 203. The first sub-compartment 201 is located above the third sub-compartment 203. The first compartment 20 has a second isolation layer 205, which separates the second sub-compartment 202 and the third sub-compartment 203. The second sub-compartment 202 and the third sub-compartment 203 are arranged along the length direction X of the first compartment 20. The first converter 601 is housed in the third sub-compartment 203.

[0274] The second sub-compartment 202 and the third sub-compartment 203 are both located below the first sub-compartment 201. The thermal management component 3 located in the first sub-compartment 201 can cover the battery device 10 located in the second sub-compartment 202 and the first inverter 601 located in the third sub-compartment 203. The first inverter 601 and the battery device 10 are arranged along the length direction X, and the second isolation layer 205 can isolate the first inverter 601 and the battery device 10.

[0275] In some embodiments, the first inverter 601 corresponds one-to-one with the first battery cluster, and multiple first inverters 601 are disposed in the third sub-compartment 203.

[0276] In the above scheme, by accommodating the first converter 601 in the third sub-compartment 203, the first converter 601 and the battery device 10 located in the second sub-compartment 202 can be arranged along the length direction X, which facilitates the installation and independent maintenance of the first converter 601 and the battery device 10, and helps to improve the installation and maintenance efficiency of the energy storage system 100.

[0277] According to some embodiments of this application, please refer to Figure 8 The height of the first compartment 20 is 2700mm-2900mm, and the height of the second compartment 30 is 2300mm-2500mm.

[0278] The dimension of the first compartment 20 along the height direction Z can be any one of 2700mm, 2710mm, 2720mm, 2730mm, 2740mm, 2750mm, 2760mm, 2770mm, 2780mm, 2790mm, 2800mm, 2810mm, 2820mm, 2830mm, 2840mm, 2850mm, 2860mm, 2870mm, 2880mm, 2890mm, 2900mm, or any value between two of them.

[0279] The dimension of the second compartment 30 along the height direction Z can be any one of 2300mm, 2310mm, 2320mm, 2330mm, 2340mm, 2350mm, 2360mm, 2370mm, 2380mm, 2390mm, 2400mm, 2410mm, 2420mm, 2430mm, 2440mm, 2450mm, 2460mm, 2470mm, 2480mm, 2490mm, 2500mm, or a value between any two of them.

[0280] In the above scheme, setting the height of the first compartment 20 to be relatively large allows the thermal management module 50 to utilize the space in the height direction Z of the first compartment 20 without occupying the space in the width and length directions X of the first compartment 20, which is beneficial to improving the area energy density of the energy storage system 100. In addition, setting the height of the second compartment 30 to be relatively small allows the second compartment 30 to have a large energy capacity while reducing its volume, which is beneficial to improving the volumetric energy density of the second compartment 30.

[0281] According to some embodiments of this application, please refer to Figure 9 The first compartment 20 includes a first sub-compartment 201 and a second sub-compartment 202. The first compartment 20 has a first isolation layer 204, which separates the first sub-compartment 201 and the second sub-compartment 202. The second sub-compartment 202 is located below the first sub-compartment 201, and the battery device 10 located in the first compartment 20 is housed in the second sub-compartment 202.

[0282] The thermal management module 50 includes a fan 506 and a condenser 501. The fan 506 is used to dissipate heat from the condenser 501. The fan 506 and the condenser 501 are located in the first sub-compartment 201. Ventilation openings are provided on the top and sides of the first sub-compartment 201.

[0283] In some embodiments, such as Figure 9 As shown, the dimension H1 of the first compartment 20 along the height direction Z and the dimension H2 of the second compartment 30 along the height direction Z are both less than 2896 mm.

[0284] Within the first compartment 20, a first isolation layer 204 and a second isolation layer 205 divide the first compartment 20 into a first sub-compartment 201, a second sub-compartment 202, and a third sub-compartment 203. The first sub-compartment 201 is located above the second sub-compartment 202 and the third sub-compartment 203, which are arranged along the length direction X.

[0285] The fan 506 is placed inside the first sub-compartment 201, positioning it at the top of the first compartment 20. A ventilation opening can be provided at the top of the first sub-compartment 201 to allow the fan 506 to ventilate with the external environment, facilitating heat exchange between the condenser 501 and the outside. It is understood that the ventilation opening can also be located on the side wall of the first sub-compartment 201 to increase the heat dissipation area of ​​the thermal management module 50.

[0286] In the above scheme, the fan 506 and condenser 501 are relatively large. By placing them in the first sub-compartment 201 in the height direction Z, the space in the height direction Z of the first compartment 20 can be fully utilized, allowing more space to be arranged for the battery device 10 and improving the energy of the first compartment 20.

[0287] According to some embodiments of this application, please refer to Figure 9The first compartment 20 also includes a third sub-compartment 203. A first isolation layer 204 further separates the first sub-compartment 201 and the third sub-compartment 203. The first sub-compartment 201 is located above the third sub-compartment 203. The first compartment 20 has a second isolation layer 205, which separates the second sub-compartment 202 and the third sub-compartment 203. The second sub-compartment 202 and the third sub-compartment 203 are arranged along the length X direction of the first compartment. The battery device 10 includes a thermal management component 3. The thermal management module 50 also includes a pumping device 502, a heat exchanger 503, a compressor 504, and a [missing information - likely a device name or component]. The pumping device 505, the pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first compartment 20 are connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second compartment 30 are connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are connected to form a refrigerant circulation loop 509. At least one of the heat exchanger 503, the pumping device 502, the compressor 504, and the throttling device 505 is housed in the third sub-compartment 203.

[0288] The thermal management component 3 of the battery device 10 can be part of the housing 2.

[0289] The pumping device 502, heat exchanger 503, and thermal management component 3 located in the first compartment 20 are connected to form a first cooling circulation loop 507. The pumping device 502, heat exchanger 503, and thermal management component 3 located in the second compartment 30 are connected to form a second cooling circulation loop 508. The first cooling circulation loop 507 and the second cooling circulation loop 508 are used to cool the battery cell 1. The compressor 504, condenser 501, throttling device 505, and heat exchanger 503 are connected to form a refrigerant circulation loop 509. The refrigerant circulation loop 509 is used to cool the coolant passing through the heat exchanger 503.

[0290] Pumping device 502, heat exchanger 503, thermal management component 3, and pumping device 502 are connected to form a cooling circulation loop.

[0291] It should be noted that the pumping device 502 (also known as a water pump) is a component used to transport the coolant. The heat exchanger 503 is a component used to exchange heat with the coolant flowing through it. The heat exchanger 503 can be, but is not limited to, a plate heat exchanger 503, a shell-and-tube heat exchanger 503, an air cooler, a spiral plate heat exchanger 503, a heat exchange tube bundle, etc. The coolant can be, but is not limited to, a mixture of ethylene glycol and water.

[0292] Under the conveying action of the pumping device 502, the coolant can circulate in the cooling circulation loop and circulate through the pumping device 502, heat exchanger 503, thermal management component 3, and pumping device 502. The above connection can be a direct connection or an indirect connection via pipelines.

[0293] The compressor 504, condenser 501, throttling device 505, heat exchanger 503, and compressor 504 are connected to form a refrigerant circulation loop 509.

[0294] In some embodiments, the pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first compartment 20 are sequentially connected to form a first cooling circulation loop 507; the pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second compartment 30 are sequentially connected to form a second cooling circulation loop 508; and the compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509.

[0295] It should be noted that the above connections can be direct or indirect via piping. Compressor 504 is the component that provides power for the refrigerant circulation and cools the refrigerant. Throttling device 505 is the component used for cooling and pressure reduction; throttling device 505 can be, but is not limited to, a throttling valve, expansion valve, etc. Condenser 501 is the component used for heat exchange with the refrigerant flowing through it. Condenser 501 can be, but is not limited to, a plate heat exchanger 503, a shell-and-tube heat exchanger 503, an air cooler, a spiral plate heat exchanger 503, a heat exchange tube bundle, etc. The refrigerant has a low boiling point and heat of vaporization, and can evaporate and condense at relatively low temperatures. It achieves a cooling effect by absorbing and releasing heat. The refrigerant can be, but is not limited to, Freon, ammonia, carbon dioxide, R134A (1,1,1,2-tetrafluoroethane), R410A (Freon R-410A refrigerant), etc.

[0296] The heat exchanger 503 is located in both the cooling circulation loop and the first refrigerant circulation loop 509. The heat exchanger 503 has internal coolant and refrigerant channels. The coolant channels participate in forming the cooling circulation loop, supplying coolant flow within them. The refrigerant channels participate in forming the first refrigerant circulation loop 509, supplying refrigerant flow within it. The coolant and refrigerant channels are not interconnected to prevent mixing. In the heat exchanger 503, the coolant and refrigerant can exchange heat, particularly the heat from the coolant, allowing the heat exchanger 503 to cool the coolant flowing through it.

[0297] Alternatively, only the condenser 501 and heat exchanger 503 can be housed in the first sub-compartment 201, while the pumping device 502, compressor 504, and throttling device 505 are housed in the third sub-compartment 203; alternatively, the condenser 501, heat exchanger 503, and pumping device 502 can be housed in the first sub-compartment 201, while the compressor 504 and throttling device 505 are housed in the third sub-compartment 203; alternatively, the condenser 501, heat exchanger 503, pumping device 502, and compressor 504 can be housed in the first sub-compartment 201, while the throttling device 505 is housed in the third sub-compartment 203; alternatively, the condenser 501, heat exchanger 503, pumping device 502, and throttling device 505 can be housed in the third sub-compartment 203; or the condenser 501, heat exchanger 503, pumping device 502, and throttling device 505 can be housed in the third sub-compartment 203. Alternatively, the condenser 501, heat exchanger 503, throttling device 505, and compressor 504 can be housed in the first sub-compartment 201, and the pumping device 502 can be housed in the third sub-compartment 203; alternatively, the condenser 501, heat exchanger 503, and throttling device 505 can be housed in the first sub-compartment 201, and the compressor 504 and pumping device 502 can be housed in the third sub-compartment 203; alternatively, the condenser 501, heat exchanger 503, and compressor 504 can be housed in the first sub-compartment 201, and the throttling device 505 and pumping device 502 can be housed in the third sub-compartment 203.

[0298] In the above scheme, at least one of the relatively small heat exchanger 503, pumping device 502, compressor 504 and throttling device 505 is housed in the third sub-compartment 203. This allows for full utilization of the internal space of the first compartment 20 without occupying as much space as possible for the battery device 10, making the structure of the energy storage system 100 more compact and increasing the volumetric energy density of the energy storage system 100.

[0299] According to some embodiments of this application, please refer to Figure 9 The energy storage system 100 also includes a converter 60, which includes a first converter 601 disposed in the first compartment 20. The first converter 601 is electrically connected to a plurality of battery devices 10 located in the first compartment 20. The plurality of battery devices 10 and the first converter 601 are housed in a second sub-compartment 202, and the first converter 601 is located below the plurality of battery devices 10.

[0300] The first compartment 20 includes multiple first battery clusters, each of which is electrically connected to a first inverter 601. The first inverter 601 and the battery device 10 housed in the first compartment 20 are both housed in the second sub-compartment 202.

[0301] In the above scheme, the first converter 601 is set at a relatively low position, which facilitates the installation and maintenance of the first converter 601.

[0302] According to some embodiments of this application, please refer to Figure 9The height of the first compartment 20 is 2600mm-2800mm, and the height of the second compartment 30 is 2300mm-2500mm.

[0303] The dimension of the first compartment 20 along the height direction Z can be any one of 2600mm, 2610mm, 2620mm, 2630mm, 2640mm, 2650mm, 2660mm, 2670mm, 2680mm, 2690mm, 2700mm, 2710mm, 2720mm, 2730mm, 2740mm, 2750mm, 2760mm, 2770mm, 2780mm, 2790mm, 2800mm, or any value between two of them.

[0304] The dimension of the second compartment 30 along the height direction Z can be any one of 2300mm, 2310mm, 2320mm, 2330mm, 2340mm, 2350mm, 2360mm, 2370mm, 2380mm, 2390mm, 2400mm, 2410mm, 2420mm, 2430mm, 2440mm, 2450mm, 2460mm, 2470mm, 2480mm, 2490mm, 2500mm, or a value between any two of them.

[0305] In the above scheme, setting the height of the first compartment 20 to be relatively large allows some of the thermal management modules 50 to utilize the space in the height direction Z of the first compartment 20 without occupying too much space in the width and length directions X of the first compartment 20, which is beneficial to improving the area energy density of the energy storage system 100. In addition, setting the height of the second compartment 30 to be relatively small allows the second compartment 30 to have a large energy capacity while reducing its volume, which is beneficial to improving the volumetric energy density of the second compartment 30.

[0306] According to some embodiments of this application, please refer to Figure 14 The energy storage system 100 also includes a third compartment 80 and a thermal management module 50. The thermal management module 50 is used to perform thermal management on multiple battery devices 10 in the first compartment 20 and the second compartment 30. The third compartment 80 and the second compartment 30 are arranged along a direction intersecting the height direction Z. The thermal management module 50 is housed in the third compartment 80.

[0307] In some embodiments, such as Figure 14 As shown, the dimension H1 of the first compartment 20 along the height direction Z and the dimension H2 of the second compartment 30 along the height direction Z are both less than 2896 mm.

[0308] The third compartment 80 can be installed at an interval from the second compartment 30. Alternatively, the third compartment 80 can be mounted on one side of the second compartment 30.

[0309] In the above scheme, since the third compartment 80 and the second compartment 30 of the thermal management module 50 are arranged along a direction intersecting the height direction Z, the interference of the thermal management module 50 on the battery device 10 can be reduced, and the operational stability of the battery device 10 can be improved. Furthermore, the maintenance of the battery device 10, the control module 40, and the thermal management module 50 is relatively convenient.

[0310] According to some embodiments of this application, please refer to Figure 14 The energy storage system 100 also includes a power distribution module 401, which is housed in the third compartment 80.

[0311] The power distribution module 401 is used to supply power to auxiliary modules other than the battery device 10. The auxiliary modules may include, but are not limited to, fire protection modules, thermal management modules 50, etc.

[0312] In the above scheme, since the power distribution module 401 requires frequent manual intervention or maintenance, accommodating the power distribution module 401 in the third compartment 80 can significantly improve the convenience of installation and maintenance of the energy storage system 100.

[0313] According to some embodiments of this application, please refer to Figure 14 The first compartment 20 includes a second sub-compartment 202 and a third sub-compartment 203. The first compartment 20 has a second isolation layer 205, which separates the second sub-compartment 202 and the third sub-compartment 203. The second sub-compartment 202 and the third sub-compartment 203 are arranged along the length direction X of the first compartment 20. The energy storage system 100 also includes a converter 60, which is electrically connected to the battery device 10. The converter 60 includes a first converter 601 disposed in the third sub-compartment 203. The first converter 601 is electrically connected to the battery device 10 located in the first compartment 20.

[0314] In some embodiments, the first compartment 20 includes a plurality of first battery clusters, each of which is electrically connected to a first inverter 601.

[0315] In the above scheme, the first converter 601 is located on one side of the first compartment 20 along its length direction X, which facilitates the maintenance of the first converter 601.

[0316] According to some embodiments of this application, please refer to Figure 8 , Figure 9 , Figures 11-13 The control module 40 is housed within the second compartment 30.

[0317] The control module 40 can be located at any position within the second compartment 30, such as the bottom or side of the second compartment 30.

[0318] In the above scheme, the height of the second compartment 30 is relatively low, and at least part of the control module 40 is housed in the second compartment 30, which can improve the convenience of installation and maintenance of the control module 40.

[0319] According to some embodiments of this application, please refer to Figure 8 , Figure 9 , Figures 11-13 The second compartment 30 includes a fourth sub-compartment 301 and a fifth sub-compartment 302. The second compartment 30 has a third isolation layer 303, which separates the fourth sub-compartment 301 and the fifth sub-compartment 302. The fourth sub-compartment 301 and the fifth sub-compartment 302 are arranged along the length direction X of the first compartment 20. The battery device 10 located in the second compartment 30 is housed in the fourth sub-compartment 301, and the control module 40 is housed in the fifth sub-compartment 302.

[0320] The control module 40 and the battery device 10 located in the second compartment 30 are arranged along the length direction X of the first compartment, with the control module 40 located at the end of the second compartment 30 along the length direction X of the first compartment.

[0321] In the above scheme, the control module 40 is set on one side of the second compartment 30 along the length direction X of the first compartment 20, which can further improve the installation and maintenance convenience of the control module 40.

[0322] According to some embodiments of this application, please refer to Figure 8 , Figure 9 , Figures 11-13 The energy storage system 100 includes a power distribution module 401 and a fire control module 402. The control module 401 and the fire control module 402 are electrically connected to the power distribution module 401. Both the power distribution module 401 and the fire control module 402 are housed in the fifth sub-compartment 302.

[0323] In the above scheme, by setting the power distribution module 401 and the fire control module 402 in the fifth sub-compartment 302, the height of the power distribution module 401 and the fire control module 402 is relatively low, which facilitates the maintenance and repair of the power distribution module 401 and the fire control module 402.

[0324] According to some embodiments of this application, please refer to Figure 9 , Figure 11 and Figure 12 The energy storage system 100 also includes a converter 60, which is electrically connected to the battery device 10. The converter 60 includes a second converter 602 disposed in the second compartment 30, which is electrically connected to the battery device 10 located in the second compartment 30. The second converter 602 is housed in the fourth sub-compartment 301.

[0325] The second compartment 30 includes multiple second battery clusters, each of which is electrically connected to a second inverter 602. Both the second inverter 602 and the battery unit 10 housed in the second compartment 30 are housed in the fourth sub-compartment 301. The second inverter 602 may be located at the top of the battery unit 10 housed in the second compartment 30; or it may be located at the bottom of the battery unit 10 housed in the second compartment 30; or the second inverter 602 and the battery unit 10 housed in the second compartment 30 may be arranged along the length X direction of the first compartment.

[0326] In the above scheme, the fourth sub-compartment 301 accommodates the second converter 602 and the battery device 10, which can reduce the space waste in the fourth sub-compartment 301 and improve the space utilization rate of the fourth sub-compartment 301. In addition, arranging the second converter 602 and the battery device 10 in the same sub-compartment facilitates the wiring connection between the two and helps to improve the installation and maintenance convenience of the energy storage system 100.

[0327] According to some embodiments of this application, please refer to Figure 8 , Figure 13 and Figure 14 The energy storage system 100 also includes a converter 60, which is electrically connected to the battery device 10. The converter 60 includes a second converter 602 disposed in the second compartment 30, which is electrically connected to the battery device 10 located in the second compartment 30. The second converter 602 is housed in the fifth sub-compartment 302.

[0328] The second converter 602 and the control module 40 are both housed in the fifth sub-compartment 302. The second converter 602 may be located at the top, bottom or side of the control module 40.

[0329] In the above scheme, the second converter 602 is housed in the fifth sub-compartment 302, which facilitates the maintenance of the second converter 602.

[0330] According to some embodiments of this application, please refer to Figures 1-11 The dimensions of the first compartment 20 and the second compartment 30 along their length direction X are consistent with the dimensions of the standard container along their length direction X, and the dimensions of the first compartment 20 and the second compartment 30 along their width direction Y are consistent with the dimensions of the standard container along their width direction Y.

[0331] The first compartment 20 is a box-type structure with the same length and width as a standard shipping container. The second compartment 30 is a box-type structure with the same length and width as a standard shipping container.

[0332] In the above scheme, the floor area of ​​the first warehouse 20 and the second warehouse 30 is the same as that of a standard container, which can reduce the transportation difficulty of the first warehouse 20 and the second warehouse 30 and reduce transportation costs.

[0333] According to some embodiments of this application, please refer to Figures 1-14 The total energy of the energy storage system 100 is 9MWh-11MWh.

[0334] The total energy of the energy storage system 100 can be any one of the following values ​​or any value between two of them: 9MWh, 9.1MWh, 9.2MWh, 9.3MWh, 9.4MWh, 9.5MWh, 9.6MWh, 9.7MWh, 9.8MWh, 9.9MWh, 10MWh, 10.1MWh, 10.2MWh, 10.3MWh, 10.4MWh, 10.5MWh, 10.6MWh, 10.7MWh, 10.8MWh, 10.9MWh, and 11MWh.

[0335] In the above scheme, the energy storage system 100 can have a high energy level.

[0336] According to some embodiments of this application, please refer to Figures 1-14 The total weight of the first compartment 20 and the components disposed within the first compartment 20 is less than or equal to 36 tons; and / or the total weight of the second compartment 30 and the components disposed within the second compartment 30 is less than or equal to 36 tons.

[0337] The total weight of the first compartment 20 and the components disposed within the first compartment 20 can be 20 tons, 20.5 tons, 21 tons, 21.5 tons, 22 tons, 22.5 tons, 23 tons, 23.5 tons, 24 tons, 24.5 tons, 25 tons, 25.5 tons, 26 tons, 26.5 tons, 27 tons, 27.5 tons, 28 tons, 28.5 tons, 29 tons, 29.5 tons, 30 tons, 30.5 tons, 31 tons, 31.5 tons, 32 tons, 32.5 tons, 33 tons, 33.5 tons, 34 tons, 34.5 tons, 35 tons, 35.5 tons, 36 tons, etc.

[0338] The above solution enables the energy storage system 100 to be adapted to most maritime transport regulations, improving the transportation convenience of the energy storage system 100.

[0339] According to some embodiments of this application, please refer to Figures 1-14 Battery cell 1 is a stacked battery cell.

[0340] In the above scheme, the stacked battery cell has a high energy density. Setting the battery cell 1 of the energy storage system 100 as a stacked battery cell can enable the energy storage system 100 to have a large energy within a limited space.

[0341] According to some embodiments of this application, please refer to Figures 1-14The sum of the dimensions of the first compartment 20 along the height direction Z and the dimensions of the second compartment 30 along the height direction Z is greater than or equal to the dimensions of a standard container along the height direction Z.

[0342] For example, the standard container is a 20-foot standard container with a height of 2896 mm. The sum of the dimensions of the first compartment 20 along the height direction Z and the dimensions of the second compartment 30 along the height direction Z is greater than or equal to 2896 mm.

[0343] In the above scheme, the first compartment 20 and the second compartment 30 can have more space in the height direction Z, which is conducive to setting more battery devices 10 in the first compartment 20 and the second compartment 30 along the height direction Z, thereby improving the volumetric energy density of the energy storage system 100.

[0344] According to some embodiments of this application, please refer to Figures 1-14 The standard container is a 20-foot standard container.

[0345] In the above scheme, the 20-foot standard container can meet most of the rules of sea transport. The first compartment 20 and the second compartment 30 are designed with reference to the 20-foot standard container, which is conducive to giving the energy storage system 100 better transportation convenience.

[0346] According to some embodiments of this application, please refer to Figures 1-4This application provides an energy storage system 100, which includes a first compartment 20, a second compartment 30, a control module 40, and multiple battery devices 10. Multiple battery devices 10 are housed in both the first compartment 20 and the second compartment 30. The first compartment 20 and the second compartment 30 are stacked along the height direction Z, with the first compartment 20 located above the second compartment 30. The dimensions of both the first compartment 20 and the second compartment 30 along the height direction Z are smaller than the dimensions of a standard 20-foot shipping container along the height direction Z. The dimensions of both the first compartment 20 and the second compartment 30 along the height direction Z are less than 2896 mm. The control module 40 is used for electrical control of the multiple battery devices 10 within the first compartment 20 and the second compartment 30. At least one of the first compartment 20 and the second compartment 30 houses the control module 40. Each battery device 10 includes multiple battery cells 1, and the battery cells 1 are stacked battery cells. Each battery cell 1 includes a housing 11 and electrode terminals 12. Along the length direction X of the first compartment, the electrode terminals 12 are disposed at at least one end of the housing 11. Along the length direction X of the first compartment, the housing 11 has dimensions of 465mm-525mm; along the width direction Y of the first compartment, the housing 11 has dimensions of 49mm-60mm; and along the height direction Z, the housing 11 has dimensions of 163mm-184mm. The battery assembly 10 includes two battery cell assemblies 1a arranged along the length direction X of the first compartment. Each battery cell assembly 1a includes a plurality of battery cells 1 arranged along the width direction Y of the first compartment. The electrode terminals 12 of the battery cells 1 in one battery cell assembly 1a are arranged back-to-back with the electrode terminals 12 of the battery cells 1 in the other battery cell assembly 1a. The electrode terminals 12 include a positive terminal and a negative terminal, which are disposed at the same end of the housing 11 along the length direction X of the battery cell 1. The battery cell 1 also includes a pressure relief mechanism 4, which is disposed on the housing 11. In the length direction X of the battery cell 1, the pressure relief mechanism 4 and the electrode terminals 12 are located at opposite ends of the housing 11.

[0347] According to some embodiments of this application, please refer to Figure 8 and Figure 13This application provides an energy storage system 100, which includes a first compartment 20, a second compartment 30, a control module 40, and multiple battery devices 10. Multiple battery devices 10 are housed in both the first compartment 20 and the second compartment 30, which are stacked along the height direction Z, with the first compartment 20 located above the second compartment 30. The control module 40 is used to electrically control the multiple battery devices 10 within the first compartment 20 and the second compartment 30. The dimensions of both the first compartment 20 and the second compartment 30 along their length direction X are the same as those of a standard 20-foot shipping container along their length direction X, and the dimensions of both the first compartment 20 and the second compartment 30 along their width direction Y are the same as those of a standard 20-foot shipping container along their width direction Y. The dimensions of both the first compartment 20 and the second compartment 30 along their height direction Z are greater than half the dimensions of a standard 20-foot shipping container along their height direction Z. The dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both smaller than the dimensions of a standard 20-foot container along the height direction Z. The dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both less than 2896 mm. The battery units 10 in the first compartment 20 are arranged in 9 rows and 4 columns, and the battery units 10 in the second compartment 30 are also arranged in 9 rows and 4 columns. Multiple battery units 10 in each row are arranged along the length direction X of the first compartment, and multiple battery units 10 in each column are arranged along the height direction Z. The dimension of the first compartment 20 along the height direction Z is larger than the dimension of the second compartment 30 along the height direction Z. The first compartment 20 includes a first sub-compartment 201 and a second sub-compartment 202. The first compartment 20 has a first isolation layer 204 that separates the first sub-compartment 201 and the second sub-compartment 202. The first sub-compartment 201 is located above the second sub-compartment 202. The entire thermal management module 50 is housed in the first sub-compartment 201, and the battery device 10 located within the first compartment 20 is housed in the second sub-compartment 202. The first compartment 20 also includes a third sub-compartment 203. The first isolation layer 204 further separates the first sub-compartment 201 and the third sub-compartment 203. The first sub-compartment 201 is located above the third sub-compartment 203. The first compartment 20 has a second isolation layer 205 that separates the second sub-compartment 202 and the third sub-compartment 203. The second sub-compartment 202 and the third sub-compartment 203 are arranged along the length direction X of the first compartment. The first inverter 601 is housed in the third sub-compartment 203.The battery device 10 includes a thermal management component 3, and the thermal management module 50 also includes a pumping device 502, a heat exchanger 503, a compressor 504, and a throttling device 505. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first compartment 20 are sequentially connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second compartment 30 are sequentially connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509. The fan 506, the condenser 501, the heat exchanger 503, the pumping device 502, the compressor 504, and the throttling device 505 are all housed in the first sub-compartment 201. The second compartment 30 includes a fourth sub-compartment 301 and a fifth sub-compartment 302. The second compartment 30 has a third isolation layer 303 that separates the fourth sub-compartment 301 and the fifth sub-compartment 302. The fourth sub-compartment 301 and the fifth sub-compartment 302 are arranged along the length direction X of the first compartment. The battery device 10 located in the second compartment 30 is housed in the fourth sub-compartment 301. The control module 40 and the fire control module 402 are both electrically connected to the power distribution module 401. The control module 40, the power distribution module 401, and the fire control module 402 are all housed in the fifth sub-compartment 302. The energy storage system 100 also includes a converter 60, which is electrically connected to the battery device 10. The converter 60 includes a second converter 602 disposed within the second compartment 30. The second converter 602 is electrically connected to the battery device 10 located within the second compartment 30 and is housed in the fifth sub-compartment 302.

[0348] According to some embodiments of this application, please refer to Figure 9 and Figure 12This application provides an energy storage system 100, which includes a first compartment 20, a second compartment 30, a control module 40, and multiple battery devices 10. Multiple battery devices 10 are housed in both the first compartment 20 and the second compartment 30, which are stacked along the height direction Z, with the first compartment 20 located above the second compartment 30. The control module 40 provides electrical control over the multiple battery devices 10 within the first and second compartments 20 and 30. The dimensions of both the first and second compartments 20 along their length direction X are identical to those of a standard 20-foot shipping container along their length direction X, and their dimensions along their width direction Y are also identical to those of a standard 20-foot shipping container along their width direction Y. The dimensions of both the first and second compartments 20 along their height direction Z are greater than half the dimensions of a standard 20-foot shipping container along their height direction Z. The dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both smaller than the dimensions of a standard 20-foot container along the height direction Z. The dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both less than 2896 mm. The battery devices 10 within the first compartment 20 are arranged in 9 rows and 4 columns, and the battery devices 10 within the second compartment 30 are also arranged in 9 rows and 4 columns. Multiple battery devices 10 in each row are arranged along the length direction X of the first compartment, and multiple battery devices 10 in each column are arranged along the height direction Z. The dimension of the first compartment 20 along the height direction Z is larger than the dimension of the second compartment 30 along the height direction Z. The first compartment 20 includes a first sub-compartment 201 and a second sub-compartment 202. The first compartment 200 has a first isolation layer 204 that separates the first sub-compartment 201 and the second sub-compartment 202. The first sub-compartment 201 is located above the second sub-compartment 202, and the battery devices 10 located within the first compartment 20 are housed in the second sub-compartment 202. The first compartment 20 also includes a third sub-compartment 203. The first isolation layer 204 further separates the first sub-compartment 201 and the third sub-compartment 203. The first sub-compartment 201 is located above the third sub-compartment 203. The first compartment 20 has a second isolation layer 205, which separates the second sub-compartment 202 and the third sub-compartment 203. The second sub-compartment 202 and the third sub-compartment 203 are arranged along the length direction X of the first compartment. The first converter 601 is housed in the second sub-compartment 202.The battery device 10 includes a thermal management component 3. The thermal management module 50 further includes a pumping device 502, a heat exchanger 503, a compressor 504, and a throttling device 505. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first compartment 20 are sequentially connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second compartment 30 are sequentially connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509. The fan 506, the condenser 501, and the heat exchanger 503 are housed in the first sub-compartment 201. The pumping device 502, the compressor 504, and the throttling device 505 are housed in the third sub-compartment 203. The second compartment 30 includes a fourth sub-compartment 301 and a fifth sub-compartment 302. The second compartment 30 has a third isolation layer 303 that separates the fourth sub-compartment 301 and the fifth sub-compartment 302. The fourth sub-compartment 301 and the fifth sub-compartment 302 are arranged along the length direction X of the first compartment. The battery device 10 located in the second compartment 30 is housed in the fourth sub-compartment 301. The control module 40 and the fire control module 402 are both electrically connected to the power distribution module 401. The control module 40, the power distribution module 401, and the fire control module 402 are all housed in the fifth sub-compartment 302. The energy storage system 100 also includes a converter 60, which is electrically connected to the battery device 10. The converter 60 includes a second converter 602 disposed within the second compartment 30. The second converter 602 is electrically connected to the battery device 10 located within the second compartment 30 and is housed in the fourth sub-compartment 301.

[0349] According to some embodiments of this application, please refer to Figure 14 This application provides an energy storage system 100, which includes a first compartment 20, a second compartment 30, a control module 40, and multiple battery devices 10. Multiple battery devices 10 are housed in both the first compartment 20 and the second compartment 30, which are stacked along the height direction Z, with the first compartment 20 located above the second compartment 30. The control module 40 is used to electrically control the multiple battery devices 10 within the first compartment 20 and the second compartment 30. The dimensions of both the first compartment 20 and the second compartment 30 along their length direction X are the same as those of a standard 20-foot shipping container along their length direction X, and the dimensions of both the first compartment 20 and the second compartment 30 along their width direction Y are the same as those of a standard 20-foot shipping container along their width direction Y. The dimensions of both the first compartment 20 and the second compartment 30 along their height direction Z are greater than half the dimensions of a standard 20-foot shipping container along their height direction Z. The dimensions of the first compartment 20 along the height direction Z and the second compartment 30 along the height direction Z are both smaller than the dimensions of a 20-foot standard container along the height direction Z.

[0350] The battery devices 10 in the first compartment 20 are arranged in 9 rows and 4 columns, and the battery devices 10 in the second compartment 30 are also arranged in 9 rows and 4 columns. Multiple battery devices 10 in each row are arranged along the length direction X of the first compartment, and multiple battery devices 10 in each column are arranged along the height direction Z. The first compartment 20 includes a first sub-compartment 201 and a second sub-compartment 202. The first compartment 200 has a first isolation layer 204 that separates the first sub-compartment 201 and the second sub-compartment 202. The first sub-compartment 201 is located above the second sub-compartment 202. The entire thermal management module 50 is housed in the first sub-compartment 201, and the battery devices 10 located within the first compartment 20 are housed in the second sub-compartment 202. The first compartment 20 also includes a third sub-compartment 203. A first isolation layer 204 further separates the first sub-compartment 201 and the third sub-compartment 203. The first sub-compartment 201 is located above the third sub-compartment 203. The first compartment 20 has a second isolation layer 205, which separates the second sub-compartment 202 and the third sub-compartment 203. The second sub-compartment 202 and the third sub-compartment 203 are arranged along the length direction X of the first compartment. The first converter 601 is housed in the third sub-compartment 203. The dimension of the first compartment 20 along the height direction Z and the dimension of the second compartment 30 along the height direction Z are both less than 2896 mm. The energy storage system 100 also includes a third compartment 80, the battery device 10 includes a thermal management component 3, and the thermal management module 50 includes a pumping device 502, a heat exchanger 503, a compressor 504, and a throttling device 505. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first compartment 20 are sequentially connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second compartment 30 are sequentially connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509. The fan 506, the condenser 501, the heat exchanger 503, the pumping device 502, the compressor 504, and the throttling device 505 are all housed in the third compartment 80. The second compartment 30 includes a fourth sub-compartment 301 and a fifth sub-compartment 302. The second compartment 30 has a third isolation layer 303 that separates the fourth sub-compartment 301 and the fifth sub-compartment 302. The fourth sub-compartment 301 and the fifth sub-compartment 302 are arranged along the length X direction of the first compartment. The battery device 10 located in the second compartment 30 is housed in the fourth sub-compartment 301, and the fire control module 402 is housed in the fifth sub-compartment 302. The power distribution module 401 is housed in the third compartment 80. The energy storage system 100 also includes a converter 60, which is electrically connected to the battery device 10. The converter 60 includes a second converter 602 disposed within the second compartment 30. The second converter 602 is electrically connected to the battery device 10 located within the second compartment 30 and is housed in the fifth sub-compartment 302.

[0351] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage system, characterized in that, include: Multiple battery devices; A first compartment and a second compartment, each containing a plurality of the battery devices, the first compartment and the second compartment being stacked along the height direction, the first compartment being located above the second compartment, and at least one of the first compartment and the second compartment having a dimension along the height direction smaller than that of a standard container along the height direction; A control module is used to electrically control a plurality of battery devices in the first compartment and the second compartment, wherein at least one of the first compartment and the second compartment houses the control module. Each of the battery devices includes multiple battery cells, and each battery cell includes a housing. The width and height of the housing are both less than the length of the housing. The length of the housing is 465mm-525mm, and / or the width of the housing is 49mm-60mm, and / or the height of the housing is 163mm-184mm. Along the height direction, the battery devices in the first compartment are arranged in 9 rows, with multiple battery devices in each row arranged along the length direction of the first compartment; and / or, along the height direction, the battery devices in the second compartment are arranged in 9 rows, with multiple battery devices in each row arranged along the length direction of the first compartment.

2. The energy storage system according to claim 1, characterized in that, The number of battery devices in the first compartment is equal to the number of battery devices in the second compartment.

3. The energy storage system according to claim 1, characterized in that, The number of battery devices in the first compartment is 36, and / or the number of battery devices in the second compartment is 36.

4. The energy storage system according to claim 1, characterized in that, The battery devices in the first compartment are arranged in four columns, with multiple battery devices in each column arranged along the height direction, and / or the battery devices in the second compartment are arranged in four columns, with multiple battery devices in each column arranged along the height direction.

5. The energy storage system according to claim 1, characterized in that, The dimensions of the first compartment along the height direction and the dimensions of the second compartment along the height direction are both greater than half the dimensions of the standard container along the height direction.

6. The energy storage system according to claim 1, characterized in that, The length of the outer casing is the dimension of the outer casing along the length direction of the first compartment, the width of the outer casing is the dimension of the outer casing along the width direction of the first compartment, and the height of the outer casing is the dimension of the outer casing along the height direction. The dimension of the first compartment in the length direction is greater than the dimension of the first compartment in the width direction. A plurality of battery cells are arranged along the width direction of the first compartment to form a battery cell assembly. Each battery cell also includes an electrode terminal, which is disposed at at least one end of the outer casing along the length direction of the first compartment.

7. The energy storage system according to claim 6, characterized in that, The battery device includes two battery cell assemblies arranged along the length of the first compartment, and each battery cell assembly includes a plurality of battery cells arranged along the width of the first compartment.

8. The energy storage system according to claim 7, characterized in that, The electrode terminals of the battery cells in one battery cell assembly are arranged back-to-back with the electrode terminals of the battery cells in another battery cell assembly.

9. The energy storage system according to claim 7, characterized in that, The electrode terminals include a positive terminal and a negative terminal, which are located at the same end of the housing along its length.

10. The energy storage system according to claim 7, characterized in that, The battery cell also includes a pressure relief mechanism, which is disposed on the housing. Along the length of the housing, the pressure relief mechanism and the electrode terminals are located at opposite ends of the housing.

11. The energy storage system according to claim 7, characterized in that, Two of the battery cell assemblies are connected in series, and each battery cell assembly includes 33-36 of the battery cells connected in series.

12. The energy storage system as described in claim 11, characterized in that, Each of the battery cell assemblies comprises 34 of the battery cells, or each of the battery cell assemblies comprises 35 battery cells.

13. The energy storage system according to claim 1, characterized in that, The energy storage system further includes a converter, which includes a first converter. The plurality of battery devices located in the first compartment include a plurality of first battery clusters. The first converter is electrically connected to at least one of the first battery clusters. And / or, the energy storage system further includes a converter, the converter including a second converter, and the plurality of battery devices located in the second compartment including a plurality of second battery clusters, the second converter being electrically connected to at least one of the second battery clusters.

14. The energy storage system according to claim 13, characterized in that, The energy storage system further includes a first sub-control module, which includes a first control part and a second control part. The first converter is electrically connected to at least one first battery cluster through the first control part, and the second control part is communicatively connected to the control module and the battery monitoring unit of the battery device located in the first compartment. And / or, the energy storage system further includes a second sub-control module, the second sub-control module including a third control part and a fourth control part, the second converter being electrically connected to at least one of the second battery clusters through the third control part, and the fourth control part being communicatively connected to the control module and the battery monitoring unit of the battery device located in the second compartment.

15. The energy storage system according to claim 14, characterized in that, The first converter and the first control unit are integrated into one unit; And / or, the second converter is integrated with the third control unit.

16. The energy storage system according to claim 13, characterized in that, Each of the first battery clusters is provided with one first inverter, and each of the second battery clusters is provided with one second inverter.

17. The energy storage system according to claim 13, characterized in that, Each of the first battery clusters includes six of the battery devices connected in series; and / or, each of the second battery clusters includes six of the battery devices connected in series.

18. The energy storage system according to claim 17, characterized in that, The maximum operating voltage of the first converter is 1500V; and / or, the maximum operating voltage of the second converter is 1500V.

19. The energy storage system according to any one of claims 1-18, characterized in that, The energy storage system also includes a thermal management module, which is used to perform thermal management on the multiple battery devices in the first compartment and the second compartment; At least a portion of the thermal management module is housed within the first compartment.

20. The energy storage system according to claim 19, characterized in that, The dimension of the first compartment along the height direction is greater than the dimension of the second compartment along the height direction.

21. The energy storage system according to claim 19, characterized in that, The entire thermal management module is housed within the first compartment.

22. The energy storage system according to claim 21, characterized in that, The first compartment includes a first sub-compartment and a second sub-compartment. The first compartment has a first isolation layer that separates the first sub-compartment and the second sub-compartment. The first sub-compartment is located above the second sub-compartment. The entire thermal management module is housed in the first sub-compartment, and the battery device located in the first compartment is housed in the second sub-compartment.

23. The energy storage system according to claim 22, characterized in that, The energy storage system further includes a converter, which includes a first converter disposed in the first compartment and electrically connected to the battery device located in the first compartment. The first compartment further includes a third sub-compartment, and the first isolation layer further separates the first sub-compartment and the third sub-compartment. The first sub-compartment is located above the third sub-compartment. The first compartment has a second isolation layer, which separates the second sub-compartment and the third sub-compartment. The second sub-compartment and the third sub-compartment are arranged along the length of the first compartment, and the first converter is housed in the third sub-compartment.

24. The energy storage system according to claim 22, characterized in that, The height of the first compartment is 2700mm-2900mm, and the height of the second compartment is 2300mm-2500mm.

25. The energy storage system according to claim 21, characterized in that, The first compartment includes a first sub-compartment and a second sub-compartment. The first compartment has a first isolation layer that separates the first sub-compartment and the second sub-compartment. The second sub-compartment is located below the first sub-compartment, and the battery device located in the first compartment is housed in the second sub-compartment. The thermal management module includes a fan and a condenser. The fan is used to dissipate heat from the condenser. The fan and the condenser are located in the first sub-compartment, and ventilation openings are provided on the top and sides of the first sub-compartment.

26. The energy storage system according to claim 25, characterized in that, The first compartment further includes a third sub-compartment, and the first isolation layer further separates the first sub-compartment and the third sub-compartment. The first sub-compartment is located above the third sub-compartment. The first compartment has a second isolation layer, which separates the second sub-compartment and the third sub-compartment. The second sub-compartment and the third sub-compartment are arranged along the length of the first compartment. The battery device includes a thermal management component, and the thermal management module further includes a pumping device, a heat exchanger, a compressor, and a throttling device. The pumping device, the heat exchanger, and the thermal management component located in the first compartment are connected to form a first coolant circulation loop. The pumping device, the heat exchanger, and the thermal management component located in the second compartment are connected to form a second coolant circulation loop. The compressor, the condenser, the throttling device, and the heat exchanger are connected to form a refrigerant circulation loop. At least one of the heat exchanger, the pumping device, the compressor, and the throttling device is housed in the third sub-compartment.

27. The energy storage system according to claim 25, characterized in that, The energy storage system further includes a converter, which includes a first converter disposed in the first compartment and electrically connected to a plurality of battery devices located in the first compartment. The plurality of battery devices and the first converter are housed in the second sub-compartment, with the first converter located below the plurality of battery devices.

28. The energy storage system according to claim 25, characterized in that, The height of the first compartment is 2600mm-2800mm, and the height of the second compartment is 2300mm-2500mm.

29. The energy storage system according to any one of claims 1-18, characterized in that, The energy storage system also includes a third compartment and a thermal management module. The thermal management module is used to perform thermal management on a plurality of battery devices in the first compartment and the second compartment. The third compartment and the second compartment are arranged along a direction intersecting the height direction. The thermal management module is housed within the third compartment.

30. The energy storage system according to claim 29, characterized in that, The energy storage system includes a power distribution module, which is housed in the third compartment.

31. The energy storage system according to claim 29, characterized in that, The first compartment includes a second sub-compartment and a third sub-compartment. The first compartment has a second isolation layer that separates the second sub-compartment and the third sub-compartment. The second sub-compartment and the third sub-compartment are arranged along the length of the first compartment. The battery device located in the first compartment is housed in the second sub-compartment. The energy storage system also includes a converter, which is electrically connected to the battery device. The converter includes a first converter disposed in the third sub-compartment, which is electrically connected to the battery device located in the first compartment.

32. The energy storage system according to any one of claims 1-18, characterized in that, The control module is housed within the second compartment.

33. The energy storage system according to claim 32, characterized in that, The second compartment includes a fourth sub-compartment and a fifth sub-compartment. The second compartment has a third isolation layer that separates the fourth sub-compartment and the fifth sub-compartment. The fourth sub-compartment and the fifth sub-compartment are arranged along the length of the first compartment. The battery device located in the second compartment is housed in the fourth sub-compartment, and the control module is housed in the fifth sub-compartment.

34. The energy storage system according to claim 33, characterized in that, The energy storage system also includes a power distribution module and a fire control module, both of which are electrically connected to the power distribution module; the control module, the power distribution module, and the fire control module are all housed in the fifth sub-compartment.

35. The energy storage system according to claim 33, characterized in that, The energy storage system also includes a converter, which is electrically connected to the battery device; The converter includes a second converter disposed in the second compartment, the second converter being electrically connected to the battery device located in the second compartment, and the second converter being housed in the fourth sub-compartment.

36. The energy storage system according to claim 33, characterized in that, The energy storage system also includes a converter, which is electrically connected to the battery device; The converter includes a second converter disposed in the second compartment, the second converter being electrically connected to the battery device located in the second compartment, and the second converter being housed in the fifth sub-compartment.

37. The energy storage system according to any one of claims 1-18, characterized in that, The dimensions of the first and second compartments along their length are the same as those of a standard container along its length, and the dimensions of the first and second compartments along their width are the same as those of the standard container along its width.

38. The energy storage system according to any one of claims 1-18, characterized in that, The total energy of the energy storage system is 9MWh-11MWh.

39. The energy storage system according to any one of claims 1-18, characterized in that, The total weight of the first compartment and the components disposed within the first compartment is less than or equal to 36 tons; and / or, the total weight of the second compartment and the components disposed within the second compartment is less than or equal to 36 tons.

40. The energy storage system according to any one of claims 1-18, characterized in that, The battery cell is a stacked battery cell.

41. The energy storage system according to any one of claims 1-18, characterized in that, The sum of the dimensions of the first compartment along the height direction and the dimensions of the second compartment along the height direction is greater than or equal to the dimensions of a standard container along the height direction.

42. The energy storage system according to any one of claims 1-18, characterized in that, The standard container is a 20-foot standard container.

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