Energy storage system

Abstract

The present application belongs to the technical field of batteries. Disclosed is an energy storage system. The energy storage system comprises a plurality of battery apparatuses, a first compartment body and a second compartment body; the first compartment body and the second compartment body are stacked in the height direction, the first compartment body being located above the second compartment body; the size of the first compartment body in the height direction and the size of the second compartment body in the height direction are both smaller than the size of a standard container in the height direction; the height of a casing of a battery cell is 220 mm -230 mm. All of battery apparatuses in the first compartment body are arranged in 4-6 rows, a plurality of battery apparatuses in each row being arranged in the length direction of the first compartment body; and / or, all of battery apparatuses in the second compartment body are arranged in 4-6 rows, a plurality of battery apparatuses in each row being arranged in the length direction of the first compartment body. The energy storage system has relatively high energy.

Description

Energy storage system Cross-reference to related applications

[0001] 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

[0002] This application relates to the field of battery technology, and more specifically, to an energy storage system. Background Technology

[0003] 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.

[0004] In the development of energy storage systems, besides improving their performance, increasing their energy capacity is also a crucial issue. Therefore, improving the energy capacity of energy storage systems is a continuous technical challenge in energy storage technology. Summary of the Invention

[0005] In view of the above problems, this application provides an energy storage system that can improve the energy of the energy storage system.

[0006] In a first aspect, this application provides an energy storage system, comprising multiple battery devices and a first compartment and a second compartment. Both the first and second compartments contain battery devices. The first and second compartments are stacked along their height, with the first compartment located above the second compartment. The dimensions of both the first and second compartments along their height are smaller than the dimensions of a standard shipping container along their height. The dimensions of both the first and second compartments along their length are the same as the dimensions of a standard shipping container along their length and width. Each battery device comprises multiple individual battery cells, and each individual battery cell includes a casing with a height of 220mm-230mm. All battery devices within the first compartment are arranged in 4-6 rows, with multiple battery devices in each row arranged along the length of the first compartment. And / or, all battery devices within the second compartment are arranged in 4-6 rows, with multiple battery devices in each row arranged along the length of the first compartment.

[0007] In the technical solution of this application embodiment, the dimensions of the first and second compartments along the height direction are both smaller than the dimensions of a standard container along the height direction. The height of the battery cell casing is limited to a reasonable range. All battery devices in the first compartment are arranged in 4-6 rows, and / or all battery devices in the second compartment are arranged in 4-6 rows, with multiple battery devices in each row arranged along the length of the first compartment. This arrangement allows the first compartment and its internal components, as well as the second compartment and its internal components, to be transported independently to meet the transportation requirements of the energy storage system. It also enables the battery devices, including the battery cells, to efficiently utilize the internal space of the first and second compartments along the height direction, thereby giving the energy storage system higher energy output. When the energy storage system is put into use, the first and second compartments are stacked along the height direction. Compared to a single standard container, this design allows the energy storage system to balance transportation convenience and greater energy output.

[0008] In one or more embodiments of the first aspect, all 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, all battery devices in the second compartment are arranged in four columns, with multiple battery devices in each column arranged along the height direction.

[0009] In the above scheme, the battery devices in the first compartment are arranged in four rows, and / or the battery devices in the second compartment are arranged in four rows; multiple battery devices in each row are arranged along the height direction. This allows the battery devices, including individual battery cells, to efficiently utilize the internal space of the first and second compartments along the length of the first compartment, further improving the energy of the energy storage system while meeting transportation requirements.

[0010] 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 the dimensions of a standard container along the height direction.

[0011] In the above scheme, 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 set to be greater than the dimensions of the standard container along the height direction. This allows for the arrangement of more components in the height direction without reducing the area energy density of the energy storage system.

[0012] In one or more embodiments of the first aspect, the plurality of battery devices located within the first compartment include a plurality of first battery clusters, each first battery cluster including a plurality of battery devices connected in series. The plurality of battery devices in at least one first battery cluster are arranged in at least one row, with the battery devices in the first battery cluster arranged in at least one row along the height direction; and / or, the plurality of battery devices in the first battery cluster are arranged in at least one column, with the battery devices in the first battery cluster arranged in at least one column along the length direction of the first compartment.

[0013] In the above scheme, the multiple battery devices in the first battery cluster can be arranged in rows and columns. The arrangement of the battery devices can be flexibly adjusted so that the battery devices can make full use of the space in the first compartment, thereby improving the volumetric energy density of the energy storage system.

[0014] In one or more embodiments of the first aspect, all battery devices in the first compartment are arranged in 5 rows and 4 columns, with multiple battery devices in each column arranged along the height direction; the upper 4 battery devices in each column are connected in series to form a first battery cluster, and the lowermost row of battery devices are connected in series to form a first battery cluster.

[0015] In the above scheme, with all the battery devices in the first compartment arranged in 5 rows and 4 columns, the top 4 battery devices in each column are connected in series to form a battery cluster, and the bottom row of battery devices are connected in series to form a battery cluster. This can reduce the difficulty of electrical connection of multiple battery devices in each battery cluster, shorten the length of electrical connection harness, reduce the space occupied by the harness, and thus improve the energy of the energy storage system.

[0016] In one or more embodiments of the first aspect, the battery devices in the first compartment are arranged in 6 rows and 4 columns, with multiple battery devices in each column arranged along the height direction; the upper 4 battery devices in each column are connected in series to form a first battery cluster, and the battery devices in each of the lower 2 rows are connected in series to form a first battery cluster.

[0017] In the above scheme, with all the battery devices in the first compartment arranged in 6 rows and 4 columns, the top 4 battery devices in each column are connected in series to form a battery cluster, and the bottom 2 rows of battery devices are connected in series to form a battery cluster. This can reduce the difficulty of electrical connection of multiple battery devices in each battery cluster, shorten the length of electrical connection harness, reduce the space occupied by the harness, and thus improve the energy of the energy storage system.

[0018] In one or more embodiments of the first aspect, the plurality of battery devices located in the second compartment include a plurality of second battery clusters, each second battery cluster including a plurality of battery devices connected in series; the plurality of battery devices in at least one second battery cluster are arranged in at least one row, the battery devices in the second battery cluster are arranged in at least one row along the height direction; and / or, the plurality of battery devices in the second battery cluster are arranged in at least one column, the battery devices in the second battery cluster are arranged in at least one column along the length direction of the second compartment.

[0019] In the above scheme, the multiple battery devices in the second battery cluster can be arranged in rows and columns. The arrangement of the battery devices can be flexibly adjusted so that the battery devices can make full use of the space in the second compartment, thereby improving the volumetric energy density of the energy storage system.

[0020] In one or more embodiments of the first aspect, all battery devices in the second compartment are arranged in 5 rows and 4 columns, with multiple battery devices in each column arranged along the height direction; the upper 4 battery devices in each column are connected in series to form a second battery cluster, and the lowermost row of battery devices is connected in series to form a second battery cluster.

[0021] In the above scheme, with all the battery devices in the second compartment arranged in 5 rows and 4 columns, the top 4 battery devices in each column are connected in series to form a battery cluster, and the bottom row of battery devices are connected in series to form a battery cluster. This can reduce the difficulty of electrical connection of multiple battery devices in each battery cluster, shorten the length of electrical connection harness, reduce the space occupied by the harness, and thus improve the energy of the energy storage system.

[0022] In one or more embodiments of the first aspect, the battery devices in the second compartment are arranged in 6 rows and 4 columns, with multiple battery devices in each column arranged along the height direction; the upper 4 battery devices in each column are connected in series to form a second battery cluster, and the battery devices in each of the lower 2 rows are connected in series to form a second battery cluster.

[0023] In the above scheme, with all the battery devices in the second compartment arranged in 6 rows and 4 columns, the top 4 battery devices in each column are connected in series to form a battery cluster, and the bottom 2 rows of battery devices are connected in series to form a battery cluster. This can reduce the difficulty of electrical connection of multiple battery devices in each battery cluster, shorten the length of electrical connection harness, reduce the space occupied by the harness, and thus improve the energy of the energy storage system.

[0024] In one or more embodiments of the first aspect, the energy storage system includes a first sub-control module, a second sub-control module, a first bus terminal, and a second bus terminal. A first compartment contains multiple first battery clusters, each first battery cluster including multiple battery devices connected in series. The first sub-control module includes a first control section electrically connected to the first bus terminal and the first battery clusters. The first bus terminal is used for electrical connection to a converter. A second compartment contains multiple second battery clusters, each second battery cluster including multiple battery devices connected in series. The second sub-control module includes a third control section electrically connected to the second bus terminal and the second battery clusters. The second bus terminal is used for electrical connection to a converter. Both the first and second bus terminals are housed within the second compartment.

[0025] In the above scheme, the first bus terminal and the second bus terminal are placed in the second compartment, which has a lower height, thus simplifying the wiring of the first bus terminal and the second bus terminal.

[0026] In one or more embodiments of the first aspect, the energy storage system includes a first sub-control module and a first converter, a first compartment housing a plurality of first battery clusters, each first battery cluster including a plurality of battery devices connected in series, the first sub-control module including a first control part electrically connected to the first converter and the first battery clusters, the first converter being integrated with the first sub-control module and located on one side of the first compartment along the length direction of the first compartment; and / or, the energy storage system includes a second sub-control module and a second converter, a second compartment housing a plurality of second battery clusters, each second battery cluster including a plurality of battery devices connected in series, the second sub-control module including a third control part electrically connected to the second converter and the second battery clusters, the second converter being integrated with the second sub-control module and located on one side of the second compartment along the length direction of the first compartment.

[0027] In the above scheme, the first converter and the first sub-control module are integrated into one unit and located on one side of the first compartment along the length of the first compartment, and / or, the second converter and the second sub-control module are integrated into one unit and located on one side of the second compartment along the length of the first compartment. This facilitates the wiring and maintenance of the converters.

[0028] In one or more embodiments of the first aspect, each first battery cluster is provided with a first sub-control module, and each second battery cluster is provided with a second sub-control module.

[0029] In the above scheme, each first battery cluster is equipped with a first sub-control module, and each second battery cluster is equipped with a second sub-control module, which helps to improve the monitoring accuracy of the sub-control module on the battery devices in the battery cluster.

[0030] In one or more embodiments of the first aspect, each battery device includes 100-108 battery cells connected in series; each first battery cluster includes four battery devices connected in series; and / or, each second battery cluster includes four battery devices connected in series.

[0031] In the above scheme, the battery device includes 100-108 battery cells connected in series, which is beneficial for the battery device to have a higher voltage.

[0032] In one or more embodiments of the first aspect, each battery device includes two parallel battery cell groups, each battery cell group including 50-54 battery cells connected in series; each first battery cluster includes eight battery devices connected in series; and / or, each second battery cluster includes eight battery devices connected in series.

[0033] In the above scheme, the battery capacity can be increased by setting two parallel battery cell groups, and the battery voltage can be increased by connecting 50-54 battery cells in series. Thus, this arrangement is beneficial for the battery device to balance high capacity and high voltage.

[0034] In one or more embodiments of the first aspect, each battery device includes 50-54 battery cell groups connected in series, each battery cell group including two battery cells connected in parallel; each first battery cluster includes eight battery devices connected in series; and / or, each second battery cluster includes eight battery devices connected in series.

[0035] In the above scheme, the battery capacity can be increased by setting each battery cell group to two battery cells in parallel, and the voltage of the battery device can be increased by connecting 50-54 battery cell groups in series. Thus, this arrangement is beneficial for the battery device to balance high capacity and high voltage.

[0036] In one or more embodiments of the first aspect, the number of first battery clusters is the same as the number of second battery clusters.

[0037] In the above scheme, having the same number of the first battery clusters as the second battery clusters makes it easier for the energy storage system to be matched with standard converters, and also helps to make the power distribution of the converters more uniform and improve the conversion efficiency of the converters.

[0038] In one or more embodiments of the first aspect, the energy storage system further includes a thermal management module for thermal management of multiple battery devices in the first compartment and multiple battery devices in the second compartment. The entire thermal management module is housed within the first compartment.

[0039] In the above scheme, on the one hand, since the entire thermal management module is housed within the first compartment, it can be transported synchronously with the first compartment, and some pipelines can be pre-connected before transportation, which improves the installation convenience of the energy storage system. On the other hand, since the thermal management module simultaneously manages multiple battery devices in the first compartment and multiple battery devices in the second compartment, and since the entire thermal management module is housed within the first compartment, most of the space in the second compartment can be used to house the battery devices. The second compartment can then have a higher volumetric energy density, thereby meeting the transportation requirements of the energy storage system while enabling the energy storage system to have higher energy density.

[0040] 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 battery device located in the first compartment is housed in the second sub-compartment, and the entire thermal management module is housed in the first sub-compartment.

[0041] 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.

[0042] In one or more embodiments of the first aspect, the battery devices in the first compartment are arranged in 4 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height; and / or, the battery devices in the second compartment are arranged in 4 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height.

[0043] In the above scheme, the first compartment and / or the second compartment have 4 rows of battery devices arranged along the height direction and 4 columns of battery devices arranged along the length direction of the first compartment. Under the condition of meeting the transportation requirements of the energy storage system, the energy storage system can have a large amount of energy.

[0044] In one or more embodiments of the first aspect, the height of the first compartment is 1600mm-2200mm, and the height of the second compartment is 1200mm-1800mm.

[0045] In the above scheme, setting the height of the first compartment within the range of 1600mm-2200mm and the height of the second compartment within the range of 1200mm-1800mm allows for relatively low heights in both compartments, reducing the difficulty of hoisting them and thus improving the transportation, installation, and maintenance convenience of the energy storage system. Furthermore, setting the height of the first compartment relatively high allows some thermal management modules to utilize the space along its height without excessively occupying space along its width and length, which is beneficial for increasing the area energy density of the energy storage system. Conversely, setting the height of the second compartment relatively low allows for a larger energy capacity while reducing its volume, which is beneficial for increasing the volumetric energy density of the second compartment.

[0046] In one or more embodiments of the first aspect, the sum of the dimensions of the first compartment and the second compartment along the height direction is 3000mm-4000mm.

[0047] In the above scheme, setting the sum of the dimensions of the first and second compartments along the height direction to be greater than or equal to 3000mm allows the energy storage system to have a larger space, thereby accommodating more battery devices and thus enabling the energy storage system to have higher energy. Setting the sum of the dimensions of the first and second compartments along the height direction to be less than or equal to 4000mm allows the energy storage system to be set at a relatively lower height, reducing the difficulty of hoisting the first and second compartments and thus improving the ease of installation of the energy storage system.

[0048] In one or more embodiments of the first aspect, the battery devices in the first compartment are arranged in 5 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height; and / or, the battery devices in the second compartment are arranged in 5 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height.

[0049] In the above scheme, the first compartment and / or the second compartment have 5 rows of battery devices arranged along the height direction and 4 columns of battery devices arranged along the length direction of the first compartment. Under the condition of meeting the transportation requirements of the energy storage system, the energy storage system can have a large amount of energy.

[0050] In one or more embodiments of the first aspect, the height of the first compartment is 1900mm-2500mm, and the height of the second compartment is 1500mm-2100mm.

[0051] In the above scheme, setting the height of the first compartment within 1900mm-2500mm and the height of the second compartment within 1500mm-2100mm allows for relatively low heights in both compartments, reducing the difficulty of hoisting them and thus improving the transportation, installation, and maintenance convenience of the energy storage system. Furthermore, setting the height of the first compartment relatively high allows some thermal management modules to utilize the space along its height without excessively occupying space in its width and length, which is beneficial for increasing the area energy density of the energy storage system. Conversely, setting the height of the second compartment relatively low allows for a larger energy capacity while reducing its volume, which is beneficial for increasing the volumetric energy density of the second compartment.

[0052] In one or more embodiments of the first aspect, the sum of the dimensions of the first compartment and the second compartment along the height direction is 3500mm-4500mm.

[0053] In the above scheme, setting the sum of the dimensions of the first and second compartments along the height direction to be greater than or equal to 3500mm allows the energy storage system to have a larger space, thereby accommodating more battery devices and thus enabling the energy storage system to have higher energy. Setting the sum of the dimensions of the first and second compartments along the height direction to be less than or equal to 4500mm allows the energy storage system to be set at a relatively lower height, reducing the difficulty of hoisting the first and second compartments and thus improving the ease of installation of the energy storage system.

[0054] In one or more embodiments of the first aspect, the battery devices in the first compartment are arranged in 6 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height; and / or, the battery devices in the second compartment are arranged in 6 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height.

[0055] In the above scheme, the first compartment and / or the second compartment have 6 rows of battery devices arranged along the height direction and 4 columns of battery devices arranged along the length direction of the first compartment. Under the condition of meeting the transportation requirements of the energy storage system, the energy storage system can have a large amount of energy.

[0056] In one or more embodiments of the first aspect, the height of the first compartment is 2200mm-2800mm, and the height of the second compartment is 1800mm-2400mm.

[0057] In the above scheme, setting the height of the first compartment within the range of 2200mm-2800mm and the height of the second compartment within the range of 1800mm-2400mm allows for relatively low heights in both compartments, reducing the difficulty of hoisting them and thus improving the transportation, installation, and maintenance convenience of the energy storage system. Furthermore, setting the height of the first compartment relatively large allows some thermal management modules to utilize the space along its height without excessively occupying space in its width and length, which is beneficial for increasing the area energy density of the energy storage system. Conversely, setting the height of the second compartment relatively small allows for a larger energy capacity while reducing its volume, which is beneficial for increasing the volumetric energy density of the second compartment.

[0058] In one or more embodiments of the first aspect, the sum of the dimensions of the first compartment and the second compartment along the height direction is 4000mm-5000mm.

[0059] Setting the sum of the height dimensions of the first and second compartments to be greater than or equal to 4000 mm allows the energy storage system to have a larger space, thereby accommodating more battery devices and enabling the energy storage system to have higher energy. Setting the sum of the height dimensions of the first and second compartments to be less than or equal to 5000 mm allows the energy storage system to be set at a relatively lower height, reducing the difficulty of hoisting the first and second compartments and thus improving the ease of installation of the energy storage system.

[0060] In one or more embodiments of the first aspect, the energy storage system further includes a control module for electrically controlling a plurality of battery devices in a first compartment and a plurality of battery devices in a second compartment.

[0061] In the above scheme, the first and second compartments are modularly combined along the height direction, and the components located in the first and second compartments are integrated into a complete system through a control module. This allows for independent transportation of the first and second compartments and their components, respectively, while meeting transportation requirements. After transportation, they form a high-energy storage system. This allows the energy storage system to balance superior transportation convenience with high energy output.

[0062] 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 second control part, the second control part being communicatively connected to the control module and a battery monitoring unit of a battery device located within the first compartment; the first compartment includes a second sub-compartment and a third sub-compartment, the first compartment having a second isolation layer separating the second sub-compartment and the third sub-compartment, the second sub-compartment and the third sub-compartment being arranged along the length direction of the first compartment; the battery device located within the first compartment is housed in the second sub-compartment, and the first sub-control module is located in the third sub-compartment.

[0063] In the above scheme, by placing the first sub-control module in the third sub-compartment, the first sub-control module 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 sub-control module and the battery device, and helps to improve the installation and maintenance efficiency of the energy storage system.

[0064] In one or more embodiments of the first aspect, the energy storage system further includes a second sub-control module, the second sub-control module including a fourth control part, the fourth control part being communicatively connected to the control module and a battery monitoring unit of a battery device located within the second compartment; the second compartment includes a fourth sub-compartment and a fifth sub-compartment, the second compartment having a third isolation layer separating the fourth sub-compartment and the fifth sub-compartment, the fourth sub-compartment and the fifth sub-compartment being arranged along the length direction of the first compartment; the battery device located within the second compartment is housed in the fourth sub-compartment, and the second sub-control module is housed in the fifth sub-compartment.

[0065] In the above scheme, by placing the second sub-control module in the fifth sub-compartment, the second sub-control module and the battery device located in the fourth sub-compartment can be arranged along the length direction, which facilitates the installation and independent maintenance of the second sub-control module and the battery device, and helps to improve the installation and maintenance efficiency of the energy storage system.

[0066] In one or more embodiments of the first aspect, the energy storage system further 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 a fifth sub-compartment.

[0067] In the above scheme, by setting the control module, power distribution module, and fire control module in the fifth sub-compartment, and by setting the height of the control module, power distribution module, and fire control module relatively low, it is convenient to maintain and repair the control module, power distribution module, and fire control module.

[0068] In one or more embodiments of the first aspect, the length of the housing is 240mm-310mm, and / or the width of the housing is 60mm-85mm.

[0069] In the above scheme, setting the length and width of the outer casing within a reasonable range is beneficial for the battery device, including the battery cells, to make efficient use of the internal space of the first compartment and the second compartment in the length direction and width direction of the first compartment.

[0070] In one or more embodiments of the first aspect, the height of the outer shell is the dimension of the outer shell along the height direction, the length of the outer shell is the dimension of the outer shell along the length direction of the container body, the width of the outer shell is the dimension of the outer shell along the width direction of the container body, and the dimension of the container body in the length direction is greater than the dimension of the container body in the width direction.

[0071] In the above scheme, setting the length direction of the outer casing to be consistent with the length direction of the first compartment, the width direction of the outer casing to be consistent with the width direction of the first compartment, and the height direction of the outer casing to be consistent with the height direction allows the battery device, including the individual battery cells, to be arranged in the length, width, and height directions of the first compartment. This reduces wasted space inside the first and second compartments and improves the energy storage system's energy efficiency. Furthermore, it simplifies the wiring complexity of the energy storage system.

[0072] In one or more embodiments of the first aspect, the width of the battery device is 1100mm-1300mm, the length of the battery device is 2000mm-2500mm, and the height of the battery device is 230mm-290mm.

[0073] In the above scheme, by ensuring that the entire thermal management module is housed within the first compartment, limiting the size of the battery device to a reasonable range allows for efficient use of the internal space of the first and second compartments. This, in turn, enables the energy storage system to possess greater energy capacity.

[0074] In one or more embodiments of the first aspect, the height of the battery device is the dimension of the battery device along the height direction, the length of the battery device is the dimension of the battery device along the width direction of the first compartment, the width of the battery device is the dimension of the battery device along the length direction of the first compartment, and the dimension of the first compartment in its length direction is greater than the dimension of the first compartment in its width direction.

[0075] In the above scheme, setting the width direction of the battery device to be consistent with the length direction of the first compartment, setting the length direction of the battery device to be consistent with the width direction of the first compartment, and setting the height direction of the battery device to be consistent with the height direction allows the battery device, including individual battery cells, to be arranged in the length, width, and height directions of the first compartment. This reduces wasted space inside the first and second compartments and improves the energy storage system's energy efficiency. Furthermore, it simplifies the wiring complexity of the energy storage system.

[0076] 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.

[0077] The above solution enables the energy storage system to be adapted to most maritime regulations, improving the transportation convenience of the energy storage system.

[0078] In one or more embodiments of the first aspect, the standard container is a 20-foot standard container.

[0079] 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.

[0080] In one or more embodiments of the first aspect, each battery device includes a plurality of battery cells, wherein the positive and negative terminals of each battery cell are disposed at the same end of the housing in the height direction of the housing.

[0081] In the above scheme, the positive and negative terminals can share some space, which is beneficial to improving the energy density of the battery cell.

[0082] 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 the other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0083] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0084] Figure 1 is an exploded view of a battery device provided in some embodiments of this application;

[0085] Figure 2 is a schematic diagram of the energy storage system provided in some embodiments of this application;

[0086] Figure 3 is a schematic diagram of the structure of a battery cell provided in some embodiments of this application;

[0087] Figure 4 is a schematic diagram of the structure of an energy storage system provided in some embodiments of this application;

[0088] Figure 5 is a structural block diagram of the control module, the first sub-control module, the second sub-control module and the battery device in an energy storage system provided in some embodiments of this application;

[0089] Figure 6 is a structural block diagram of the converter, the first sub-control module, the second sub-control module and the battery device in an energy storage system provided in some embodiments of this application;

[0090] Figure 7 is a structural block diagram of a first converter, a second 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;

[0091] Figure 8 is a structural schematic diagram of the first compartment and some of its internal components provided in some embodiments of this application;

[0092] Figure 9 is a structural schematic diagram of the first compartment and some of its internal components provided in some embodiments of this application;

[0093] Figure 10 is a schematic diagram of the structure of the first thermal management module provided in some embodiments of this application;

[0094] Figure 11 is a schematic diagram of the structure of an energy storage system provided in some embodiments of this application (the thermal management module is housed in the first sub-compartment);

[0095] Figure 12 is a schematic diagram of the structure of an energy storage system provided in some embodiments of this application (the power distribution module and the fire control module are housed in the fifth sub-compartment);

[0096] Figure 13 is a schematic diagram of the structure of an energy storage system provided in some embodiments of this application (the thermal management module is housed in the first sub-compartment);

[0097] Figure 14 is a structural schematic diagram of an energy storage system provided in some embodiments of this application (the power distribution module and the fire control module are housed in the fifth sub-compartment);

[0098] Figure 15 is a schematic diagram of the structure of an energy storage system provided in some embodiments of this application (the thermal management module is housed in the first sub-compartment);

[0099] Figure 16 is a structural schematic diagram of an energy storage system provided in some embodiments of this application (the power distribution module and the fire control module are housed in the fifth sub-compartment);

[0100] Figure 17 is a schematic diagram of the structure of a battery device provided in some embodiments of this application.

[0101] The reference numerals in the detailed embodiments are as follows:

[0102] 10-Battery device; 1a-Battery cell assembly; 1-Battery cell; 11-Casing; 111-First wall; 12-Electrode terminal; 2-Box; 21-First box; 22-Second box; 3-Thermal management component; 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; 4031-First Control section; 4032 - Second control section; 404 - Second sub-control module; 4041 - Third control section; 4042 - Fourth control section; 405 - First bus terminal; 406 - Second bus terminal; 50 - Thermal management module; 501 - Condenser; 502 - Pumping device; 503 - Heat exchanger; 504 - Compressor; 505 - Throttling device; 506 - Fan; 61 - First converter; 62 - Second converter; 70 - First cable tray; 80 - First battery cluster; 90 - Converter; 100 - Energy storage system; X - Length direction of the first compartment; Y - Width direction of the first compartment; Z - Height direction. Detailed Implementation

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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).

[0108] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0109] Battery cells include, but are not limited to, lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, etc.

[0110] 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, reduces the risk of short circuits while allowing active ions to pass through.

[0111] In some embodiments, the separator is a separator membrane. The separator membrane can be any known porous structure separator membrane with good chemical and mechanical stability.

[0112] In some embodiments, the separator is a solid electrolyte. The solid electrolyte is disposed between the positive and negative electrodes, serving both to transport ions and to isolate the positive and negative electrodes.

[0113] In some embodiments, the electrode assembly is a wound structure. The positive electrode and the negative electrode are wound into a wound structure.

[0114] In some embodiments, the electrode assembly can be cylindrical, flat, or polygonal, etc.

[0115] As an example, a battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic battery cells, such as hexagonal prismatic battery cells.

[0116] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity.

[0117] The battery device mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via a busbar.

[0118] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells; as an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form a single module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

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

[0120] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0121] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0122] In some embodiments, the battery can be an energy storage device. Energy storage devices include energy storage containers, energy storage cabinets, etc.

[0123] In a typical battery cell structure, a battery cell includes a casing, electrode assemblies, and electrolyte. The casing includes end caps and a housing; the end caps close the opening of the housing to define a space for accommodating the electrode assemblies. In some embodiments, the casing can be a steel casing, an aluminum casing, a plastic casing (such as a polypropylene casing), a composite metal casing (such as a copper-aluminum composite casing), or an aluminum-plastic film, etc.

[0124] 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.

[0125] In energy storage systems, if as many battery devices as possible are packed into a standard shipping container and transported simultaneously with it, the container may become overweight. To comply with shipping regulations, some battery devices need to be transported separately from the standard container and then repacked into it, which reduces transport convenience. Alternatively, a smaller number of battery devices can be loaded into the standard container and transported simultaneously. While this meets shipping regulations, the internal space of the standard container cannot be fully utilized, resulting in a lower volumetric energy density and thus a lower energy density for the energy storage system.

[0126] In view of this, this application provides an energy storage system, which includes multiple battery devices and a first compartment and a second compartment. Both the first and second compartments contain battery devices. The first and second compartments are stacked along their height, with the first compartment located above the second compartment. The dimensions of both the first and second compartments along their height are smaller than the dimensions of a standard shipping container along their height. The dimensions of both the first and second compartments along their length are the same as the dimensions of a standard shipping container along their length and width. Each battery device includes multiple battery cells, and each battery cell includes a casing with a height of 220mm-230mm. The battery devices in the first compartment are arranged in 4-6 rows, with multiple battery devices in each row arranged along the length of the first compartment. And / or, the battery devices in the second compartment are arranged in 4-6 rows, with multiple battery devices in each row arranged along the length of the first compartment. Both the first and second compartments are smaller in height than a standard shipping container. The height of the individual battery cells' casings is limited to a reasonable range. All battery units in the first compartment are arranged in 4-6 rows, and / or all battery units in the second compartment are arranged in 4-6 rows, with multiple battery units in each row arranged along the length of the first compartment. This arrangement allows for independent transport of the first and second compartments and their components, meeting the transportation requirements of the energy storage system. It also enables efficient use of the internal space of the first and second compartments, including the individual battery cells, in the height direction, resulting in a higher energy capacity for the energy storage system. When the energy storage system is in use, the first and second compartments are stacked vertically. Compared to a single standard shipping container, this design allows the energy storage system to balance transport convenience with greater energy capacity.

[0127] According to some embodiments of this application, referring to Figures 1-3, this application provides an energy storage system 100. The energy storage system 100 includes a plurality of battery devices 10, a first compartment 20, and a second compartment 30. Both the first compartment 20 and the second compartment 30 house battery devices 10. 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 shipping container along the height direction Z. The dimensions of both the first compartment 20 and the second compartment 30 along their length are also smaller than those of a standard shipping container. The dimensions of the quasi-container are consistent along its length, and the dimensions of the first compartment 20 and the second compartment 30 along their width are consistent with the dimensions of the standard container along its width. Each battery device 10 includes multiple battery cells 1, and each battery cell 1 includes a shell 11 with a height of 220mm-230mm. The battery devices 10 in the first compartment 20 are arranged in 4-6 rows, with multiple battery devices 10 in each row arranged along the length X of the first compartment. And / or, the battery devices 10 in the second compartment 30 are arranged in 4-6 rows, with multiple battery devices 10 in each row arranged along the length X of the first compartment.

[0128] To meet different power demands, the battery device 10 may include multiple battery cells 1, which can be connected in series, parallel, or in a mixed configuration. The battery device 10 may also be referred to as a battery pack. Optionally, the multiple battery cells 1 can first be connected in series, parallel, or in a mixed configuration to form a battery cell assembly 1a, and then the battery cell assembly 1a can be connected in series, parallel, or in a mixed configuration to form the battery device 10. That is, the multiple battery cells 1 can directly form the battery device 10, or they can first be formed into a battery cell assembly 1a, and then the battery cell assembly 1a can be formed into the battery device 10.

[0129] In some embodiments, referring to FIG1, the battery device 10 may include a plurality of battery cells 1. The battery device 10 may also include a housing 2, the housing 2 having a hollow internal structure, and the plurality of battery cells 1 are housed within the housing 2. As shown in FIG1, these are referred to here as a first housing 21 and a second housing 22, which are fastened together. The shapes of the first housing 21 and the second housing 22 may be determined according to the shape of the combination of the plurality of battery cells, and both the first housing 21 and the second housing 22 may have an open surface. For example, both the first housing 21 and the second housing 22 may be hollow cuboids with only one open surface each, the open surfaces of the first housing 21 and the second housing 22 being arranged opposite to each other, and the first housing 21 and the second housing 22 being fastened together to form a housing 2 with a closed cavity. The plurality of battery cells 1 are connected in parallel, series, or mixed configurations and placed within the housing 2 formed by the fastening of the first housing 21 and the second housing 22.

[0130] Optionally, the battery device 10 may also include other structures, which will not be described in detail here. For example, the battery device 10 may also include a busbar component for electrically connecting multiple battery cells 1, such as in parallel, series, or mixed connections. Specifically, the busbar component can achieve electrical connection between battery cells 1 by connecting the electrode terminals 12 of the battery cells 1. Further, the busbar component can be fixed to the electrode terminals 12 of the battery cells 1 by welding. The electrical energy of the multiple battery cells 1 can be further led out through the housing 2 via a conductive mechanism.

[0131] The number of battery cells 1 can be set to any value depending on different power demands. Multiple battery cells 1 can be connected in series, parallel, or mixed connections to achieve a larger capacity or power. Since each battery device 10 may include a large number of battery cells 1, for ease of installation, the battery cells 1 can be grouped, with each group forming a battery cell assembly 1a. The number of battery cells 1 included in a battery cell assembly 1a is unlimited and can be set according to requirements. The battery device 10 may include multiple battery cell assemblies 1a, which can be connected in series, parallel, or mixed connections.

[0132] In some embodiments, the battery device 10 may also be a battery cell assembly 1a without a housing 2, and the battery cell assembly 1a may be directly arranged in the first compartment 20 and / or the second compartment 30.

[0133] 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.

[0134] 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 in one direction (e.g., along the width direction of the housing 11). Alternatively, the battery cells 1 of the battery device 10 may form multiple battery cell assemblies 1a, with the multiple battery cells 1 in each battery cell assembly 1a arranged in one direction (e.g., along the width direction of the housing 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. The multiple battery cells 1 in the battery cell assembly 1a may all be connected in series; of course, the multiple battery cells 1 in the battery cell assembly 1a may include multiple battery packs, each battery pack including multiple battery cells 1, and the multiple battery packs may be connected in series or in parallel, and the multiple battery cells 1 in each battery pack may be connected in series or in parallel.

[0135] In some embodiments, a plurality of battery cells 1 are arranged along the width direction of the housing 11 to form a battery cell assembly 1a, wherein the width direction of the housing 11 is consistent with the width direction Y of the first compartment.

[0136] In some embodiments, the battery cell 1 includes one or more electrode assemblies and a housing 11. The housing 11 may include a shell, with multiple walls of the shell forming a cavity for accommodating the electrode assemblies. The shape of the shell depends on the combined shape of the one or more electrode assemblies; for example, the shell may be a hollow cuboid, cube, or regular polyhedron, and one face of the shell may have an opening to allow one or more electrode assemblies to be placed inside the shell. The shell is filled with an electrolyte, such as an electrolyte solution. The battery cell 1 may also include two electrode terminals 12, which may be disposed on an end cap. The end cap is typically flat, and the two electrode terminals 12 are fixed to the flat surface of the end cap, representing the positive and negative terminals, respectively. Each electrode terminal 12 is provided with a corresponding adapter located between the end cap and the electrode assembly for electrically connecting the electrode assembly and the electrode terminal 12. In this battery cell 1, depending on actual usage requirements, the electrode assembly may be single or multiple, and the battery cell 1 may contain multiple independent electrode assemblies. Electrode terminals 12 can be disposed on any wall portion of housing 11. In some embodiments, housing 11 further includes end caps that close the openings of the housing. Electrode terminals 12 can be disposed on end caps or on any wall portion of the housing. In other embodiments, housing 11 includes two end caps, housing has two openings, and the two end caps respectively close the two openings. Electrode terminals 12 can be disposed on at least one of the two end caps or on any wall portion of the housing. For example, referring to FIG2, housing 11 includes a first wall portion 111 and a second wall portion disposed opposite each other along the height direction Z, and both electrode terminals 12 are disposed on the first wall portion 111. Optionally, the first wall portion 111 is an end cap.

[0137] The first compartment 20 and the second compartment 30 are stacked along the height direction Z, with the first compartment 20 positioned 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 Z of both the first compartment 20 and the second compartment 30 can be the same as the height direction Z.

[0138] 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 the standard container along the height direction Z. Alternatively, the dimensions of the first compartment 20 along the height direction Z and the second compartment 30 along the height direction Z can be the same; the dimensions of the first compartment 20 along the height direction Z can be larger than the dimensions of the second compartment 30 along the height direction Z; or the dimensions of the first compartment 20 along the height direction Z can be smaller than the dimensions of the second compartment 30 along the height direction Z.

[0139] A standard container can refer to a container of standard dimensions used in transportation, such as 20 feet, 30 feet, 40 feet, or 45 feet. These dimensions conform to the corresponding standards, with specific length, width, and height measurements. Standard containers can be referenced in GB / T1413-2023 Series 1: Container Classification, Dimensions, and Rated Mass.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] Alternatively, for containers of various sizes, dimensions within ±5% of their dimensions can be considered as dimensions within tolerance.

[0145] The height H of the outer casing 11 can be any one of 220mm, 221mm, 222mm, 223mm, 224mm, 225mm, 226mm, 227mm, 228mm, 229mm, 230mm or any value between two of them.

[0146] In some embodiments, the height direction Z of the housing 11 extends along the height direction Z, and it is not required that the height direction Z of the housing 11 be completely parallel to the height direction Z, but they can be approximately parallel.

[0147] In some embodiments, the battery devices 10 within the first compartment 20 may be arranged in 4, 5, or 6 rows.

[0148] In some embodiments, the battery devices 10 within the second compartment 30 are arranged in 4, 5, or 6 rows.

[0149] In some embodiments, the battery devices 10 within the first compartment 20 may be arranged in 4, 5, or 6 columns, etc.

[0150] In some embodiments, the battery devices 10 within the second compartment 30 may be arranged in 4, 5, or 6 columns, etc.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] In the technical solution of this application embodiment, 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 container along the height direction Z. The height of the outer casing 11 of the battery cell 1 is limited to a reasonable range, and all battery devices 10 in the first compartment 20 are arranged in 4-6 rows, and / or all battery devices 10 in the second compartment 30 are arranged in 4-6 rows, with multiple battery devices 10 in each row arranged along the length direction X of the first compartment. With this arrangement, while the first compartment 20 and its internal components and the second compartment 30 and their internal components can be transported independently to meet the transportation requirements of the energy storage system 100, the battery devices 10, including the battery cells 1, can also efficiently utilize the internal space of the first compartment 20 and the second compartment 30 along the height direction Z, thereby enabling the energy storage system 100 to have higher energy. When the energy storage system 100 is put into use, the first compartment 20 and the second compartment 30 are stacked along the height direction Z. Compared to a single standard container, this design allows the energy storage system to balance transport convenience with greater energy output.

[0155] According to some embodiments of this application, referring to Figures 1-4, all 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, all 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.

[0156] In some embodiments, the number of rows of battery devices 10 in the first compartment 20 may be the same as or different from the number of rows of battery devices 10 in the second compartment 30.

[0157] In the above scheme, the battery devices 10 in the first compartment 20 are arranged in four columns, and / or the battery devices 10 in the second compartment 30 are arranged in four columns; multiple battery devices 10 in each column are arranged along the height direction Z. This allows the battery devices 10, including individual battery cells 1, to make efficient use of the internal space of the first compartment 20 and the second compartment 30 in the length direction X of the first compartment, further improving the energy of the energy storage system 100 while meeting transportation requirements.

[0158] According to some embodiments of this application, referring to Figures 1-4, 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 the dimensions of a standard container along the height direction Z.

[0159] In some embodiments, referring to Figure 2, the dimension H1 of the first compartment 20 along the height direction Z is less than 2896 mm. The dimension H2 of the second compartment 30 along the height direction Z is less than 2896 mm. The sum of H1 and H2 is greater than 2896 mm.

[0160] In the above scheme, setting at least one of the dimensions of the first compartment 20 along the height direction Z and the second compartment 30 along the height direction Z to be smaller than the dimensions of a standard container along the height direction Z can, on the one hand, make the center of gravity of the energy storage system 100 more stable, and on the other hand, reduce the weight of the first compartment 20 and / or the weight of the second compartment 30, thereby improving the transportation convenience of the energy storage system 100.

[0161] According to some embodiments of this application, referring to Figures 1-4 and 8-9, a plurality of battery devices 10 located within a first compartment 20 include a plurality of first battery clusters 80, each first battery cluster 80 including a plurality of battery devices 10 connected in series. The plurality of battery devices 10 in at least one first battery cluster 80 are arranged in at least one row, with the battery devices 10 in the first battery cluster 80 arranged in at least one row along the height direction Z; and / or, the plurality of battery devices 10 in the first battery cluster 80 are arranged in at least one column, with the battery devices 10 in the first battery cluster 80 arranged in at least one column along the length direction X of the first compartment.

[0162] In some embodiments, the first battery cluster 80 includes four battery devices 10. Optionally, the four battery devices 10 are arranged in a 4x1 row and 1x1 column arrangement, or alternatively, the four battery devices 10 are arranged in a 1x4 row and 4x4 column arrangement.

[0163] In some embodiments, the first battery cluster 80 includes eight battery devices 10. Optionally, the eight battery devices 10 are arranged in 4 rows and 2 columns, or alternatively, the eight battery devices 10 are arranged in 2 rows and 4 columns.

[0164]

[0165] In the above scheme, the multiple battery devices 10 in the first battery cluster 80 can be arranged in rows and columns. The arrangement of the battery devices 10 can be flexibly adjusted so that the battery devices 10 can make full use of the space inside the first compartment 20, thereby improving the volumetric energy density of the energy storage system 100.

[0166] According to some embodiments of this application, referring to Figures 1-8, all battery devices 10 in the first compartment 20 are arranged in 5 rows and 4 columns, and multiple battery devices 10 in each column are arranged along the height direction Z; the upper 4 battery devices 10 in each column are connected in series to form a first battery cluster 80, and the lowermost row of battery devices 10 is connected in series to form a first battery cluster 80.

[0167] In the energy storage system 100, referring to Figure 7, taking the first compartment 20 as an example (optionally, the second compartment 30 has the same configuration), the first compartment 20 includes a second sub-compartment 202, and the battery device 10 in the first compartment 20 is located in the second sub-compartment 202. In some embodiments, the first compartment 20 further includes a sub-isolation layer, which divides the second sub-compartment 202 into multiple secondary sub-compartments, each of which contains the battery device 10. Optionally, the sub-isolation layer may include multiple diagonal bracing beams, guide rails for assembling the battery device 10, flame-retardant plates, skins, etc. Therefore, ordinary wiring harnesses cannot pass through the sub-isolation layer. To achieve the electrical connection between the first battery cluster 80 and the first sub-control module 403, the wiring harness needs to start from the total output terminal of each first battery cluster 80, run along the height direction Z, and pass through the bottom of the first compartment 20 to the first sub-control module 403. Optionally, a first wire trough 70 can be provided at the bottom of the first compartment 20, through which the wiring harnesses of all the first battery clusters 80 pass. The first wire trough 70 can be a wire frame provided at the bottom of the first compartment 20, or it can be a first wire trough 70 formed by multiple cable ties. In some other embodiments, 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 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 battery device 10 located in the first compartment 20 is accommodated in the second sub-compartment 202, and the first sub-control module 403 is located in the third sub-compartment 203. The first wire trough 70 connects the second sub-compartment 202 and the third sub-compartment 203.

[0168] Referring to Figure 8, the four battery devices 10 at the top of each column are connected in series to form a battery cluster, and the battery devices 10 in the bottom row are connected in series to form a battery cluster. When electrically connecting the first battery cluster 80 and the first sub-control module 403, only the electrical connection harness of every two battery devices 10 in the bottom row needs to pass through the bottom of the first compartment 20, which can significantly shorten the harness length.

[0169] In the above scheme, with all the battery devices 10 in the first compartment 20 arranged in 5 rows and 4 columns, the top 4 battery devices 10 in each column are connected in series to form a battery cluster, and the bottom row of battery devices 10 is connected in series to form a battery cluster. This can reduce the difficulty of electrical connection of multiple battery devices 10 in each battery cluster, shorten the length of the electrical connection harness, reduce the space occupied by the harness, and thus improve the energy of the energy storage system 100.

[0170] According to some embodiments of this application, referring to Figures 1-7 and 9, the battery devices 10 in the first compartment 20 are arranged in 6 rows and 4 columns, and multiple battery devices 10 in each column are arranged along the height direction Z; the four battery devices 10 at the top of each column are connected in series to form a first battery cluster 80, and the battery devices 10 in each of the two rows at the bottom are connected in series to form a first battery cluster 80.

[0171] Referring to Figure 9, the four battery devices 10 at the top of each column are connected in series to form a battery cluster, and the battery devices 10 in the bottom row are connected in series to form a first battery cluster 80. The battery devices 10 in each of the two bottom rows are connected in series to form a first battery cluster 80. When electrically connecting the first battery cluster 80 and the first sub-control module 403, only the electrical connection harness of every two battery devices 10 in the two bottom rows needs to pass through the bottom of the first compartment 20, which can significantly shorten the harness length.

[0172] In the above scheme, with all the battery devices 10 in the first compartment 20 arranged in 6 rows and 4 columns, the four battery devices 10 in the upper part of each column are connected in series to form a battery cluster, and the two battery devices 10 in the lower part of each column are connected in series to form a battery cluster. This can reduce the difficulty of electrical connection of multiple battery devices 10 in each battery cluster, shorten the length of the electrical connection harness, reduce the space occupied by the harness, and thus improve the energy of the energy storage system 100.

[0173] According to some embodiments of this application, referring to Figures 1-9, the plurality of battery devices 10 located in the second compartment 30 include a plurality of second battery clusters, each second battery cluster including a plurality of battery devices 10 connected in series; the plurality of battery devices 10 in at least one second battery cluster are arranged in at least one row, the battery devices 10 in the second battery cluster are arranged in at least one row along the height direction Z; and / or, the plurality of battery devices 10 in the second battery cluster are arranged in at least one column, the battery devices 10 in the second battery cluster are arranged in at least one column along the length direction of the second compartment 30.

[0174] In some embodiments, the second battery cluster includes four battery devices 10. Optionally, the four battery devices 10 are arranged in a 4-row, 1-column configuration, or alternatively, the four battery devices 10 are arranged in a 1-row, 4-column configuration.

[0175] In some embodiments, the second battery cluster includes eight battery devices 10, optionally arranged in 4 rows and 2 columns, or optionally arranged in 2 rows and 4 columns.

[0176] In the above scheme, the multiple battery devices 10 in the second battery cluster can be arranged in rows and columns. The arrangement of the battery devices 10 can be flexibly adjusted so that the battery devices 10 can make full use of the space inside the second compartment 30, thereby improving the volumetric energy density of the energy storage system 100.

[0177] According to some embodiments of this application, referring to Figures 1-8, all battery devices 10 in the second compartment 30 are arranged in 5 rows and 4 columns, and multiple battery devices 10 in each column are arranged along the height direction Z; the upper 4 battery devices 10 in each column are connected in series to form a second battery cluster, and the lowermost row of battery devices 10 is connected in series to form a second battery cluster.

[0178] Referring to Figure 8, the four battery devices 10 at the top of each column are connected in series to form a battery cluster, and the battery devices 10 in the bottom row are connected in series to form a second battery cluster. When the second sub-control module 404 of the second battery cluster is electrically connected, only the electrical connection harness of every two battery devices 10 in the bottom row needs to pass through the bottom of the second compartment 30, which can significantly shorten the harness length.

[0179] In the above scheme, with all the battery devices 10 in the second compartment 30 arranged in 5 rows and 4 columns, the top 4 battery devices 10 in each column are connected in series to form a battery cluster, and the bottom row of battery devices 10 is connected in series to form a battery cluster. This can reduce the difficulty of electrical connection of multiple battery devices 10 in each battery cluster, shorten the length of the electrical connection harness, reduce the space occupied by the harness, and thus improve the energy of the energy storage system 100.

[0180] According to some embodiments of this application, referring to Figures 1-7 and Figure 9, the battery devices 10 in the second compartment 30 are arranged in 6 rows and 4 columns, and multiple battery devices 10 in each column are arranged along the height direction Z; the four battery devices 10 at the top of each column are connected in series to form a second battery cluster, and the battery devices 10 in each of the two rows at the bottom are connected in series to form a second battery cluster.

[0181] Referring to Figure 9, the four battery devices 10 at the top of each column are connected in series to form a battery cluster, and the battery devices 10 in the bottom row are connected in series to form a second battery cluster. The battery devices 10 in each of the two bottom rows are connected in series to form a second battery cluster. When electrically connecting the second sub-control module 404 of the second battery cluster, only the electrical connection harness of every two battery devices 10 in the two bottom rows needs to pass through the bottom of the second compartment 30, which can significantly shorten the harness length.

[0182] In the above scheme, with all the battery devices 10 in the second compartment 30 arranged in 6 rows and 4 columns, the top 4 battery devices 10 in each column are connected in series to form a battery cluster, and the bottom 2 rows of battery devices 10 are connected in series to form a battery cluster. This can reduce the difficulty of electrical connection of multiple battery devices 10 in each battery cluster, shorten the length of the electrical connection harness, reduce the space occupied by the harness, and thus improve the energy of the energy storage system 100.

[0183] According to some embodiments of this application, referring to Figures 1-6, the energy storage system 100 includes a first sub-control module 403, a second sub-control module 404, a first bus terminal 405, and a second bus terminal 406. A first compartment 20 houses a plurality of first battery clusters 80, each first battery cluster 80 including a plurality of battery devices 10 connected in series. The first sub-control module 403 includes a first control section 4031, which is electrically connected to the first bus terminal 405 and the first battery clusters 80. The first bus terminal 405 is used for electrical connection to a converter 90. A second compartment 30 houses a plurality of second battery clusters, each second battery cluster including a plurality of battery devices 10 connected in series. The second sub-control module 404 includes a third control section 4041, which is electrically connected to the second bus terminal 406 and the second battery clusters. The second bus terminal 406 is used for electrical connection to the converter 90. Both the first bus terminal 405 and the second bus terminal 406 are housed within the second compartment 30.

[0184] The converter 90 converts the DC power of the battery device 10 into AC power so that the battery device 10 can output power, or converts the AC power of the external circuit into DC power so that the battery device 10 can store power.

[0185] The converter 90 can be one or more.

[0186] The converter 90 is located outside the first compartment 20 and the second compartment 30, which means that the converter 90 does not occupy the internal space of the first compartment 20 and the second compartment 30.

[0187] The total output terminal (including the total positive output terminal and the total negative output terminal) of the first battery cluster 80 can be connected to the first control section 4031 first, and then the power of the energy storage system 100 can be output through the first bus terminal 405.

[0188] The total output terminal (including the total positive output terminal and the total negative output terminal) of the second battery cluster can be connected to the third control section 4041 first, and then the power of the energy storage system 100 can be output through the second bus terminal 406.

[0189] In the above scheme, the first bus terminal 405 and the second bus terminal 406 are set in the second compartment 30 with a lower height, which can simplify the wiring of the first bus terminal 405 and the second bus terminal 406.

[0190] According to some embodiments of this application, referring to Figures 1-5 and Figure 7, the energy storage system 100 includes a first sub-control module 403 and a first inverter 61. A first compartment 20 houses a plurality of first battery clusters 80, each first battery cluster 80 including a plurality of battery devices 10 connected in series. The first sub-control module 403 includes a first control section 4031, which is electrically connected to the first inverter 61 and the first battery clusters 80. The first inverter 61 is integrated with the first sub-control module 403 and located along the first compartment 20. The energy storage system 100 includes a second sub-control module 404 and a second inverter 62. The second compartment 30 contains a plurality of second battery clusters, each of which includes a plurality of battery devices 10 connected in series. The second sub-control module 404 includes a third control part 4041, which is electrically connected to the second inverter 62 and the second battery cluster. The second inverter 62 is integrated with the second sub-control module 404 and is located on one side of the second compartment 30 along the length direction X of the first compartment.

[0191] The first converter 61 is integrated with the first control unit 4031; and / or, the second converter 62 is integrated with the third control unit 4041. The integration of the first converter 61 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 61 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 shell. Similarly, the integration of the second converter 62 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 62 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 shell. This configuration simplifies the assembly process of the energy storage system 100.

[0192] In the above scheme, the first converter 61 and the first sub-control module 403 are integrated into one unit and located on one side of the first compartment 20 along the length direction X of the first compartment, and / or, the second converter 62 and the second sub-control module 404 are integrated into one unit and located on one side of the second compartment 30 along the length direction X of the first compartment. This facilitates the wiring and maintenance of the converters.

[0193] According to some embodiments of this application, referring to Figures 1-7, each first battery cluster 80 is provided with a first sub-control module 403, and each second battery cluster is provided with a second sub-control module 404.

[0194] Each first battery cluster 80 is provided with a first sub-control module 403, and each second battery cluster is provided with a second sub-control module 404. This means that the first sub-control module 403 and the second sub-control module 404 can monitor the first battery cluster 80 and the second battery cluster independently, respectively, with relatively high monitoring accuracy.

[0195] In some embodiments, the two first sub-control modules 403 can be integrated into one control box.

[0196] In some embodiments, the two second sub-control modules 404 can be integrated into one control box.

[0197] In the above scheme, each first battery cluster 80 is provided with a first sub-control module 403 and each second battery cluster is provided with a second sub-control module 404, which helps to improve the monitoring accuracy of the sub-control module 40 on the battery device 10 in the battery cluster.

[0198] According to some embodiments of this application, referring to Figures 1-7, each battery device 10 includes 100-108 battery cells 1 connected in series; each first battery cluster 80 includes four battery devices 10 connected in series; and / or, each second battery cluster includes four battery devices 10 connected in series.

[0199] In some embodiments, the positive electrode material of the battery cell 1 includes lithium phosphate, and the plateau voltage of the battery cell 1 is 2.8V-3.6V. In other embodiments, the positive electrode material of the battery cell 1 includes lithium iron phosphate, and the plateau voltage of the battery cell 1 is 3.1V-3.3V. This configuration allows the energy storage system 100 to be adapted to a converter 90 with a maximum operating voltage of 1500V.

[0200] In the above scheme, the battery device 10 includes 100-108 battery cells 1 connected in series, which is beneficial to enable the battery device 10 to have a higher voltage.

[0201] According to some embodiments of this application, referring to Figures 1-7, each battery device 10 includes two parallel battery cell groups, each battery cell group includes 50-54 battery cells 1 connected in series; each first battery cluster 80 includes eight battery devices 10 connected in series; and / or, each second battery cluster includes eight battery devices 10 connected in series.

[0202] In some embodiments, the positive electrode material of the battery cell 1 includes lithium phosphate, and the plateau voltage of the battery cell 1 is 2.8V-3.6V. In other embodiments, the positive electrode material of the battery cell 1 includes lithium iron phosphate, and the plateau voltage of the battery cell 1 is 3.1V-3.3V. This configuration allows the energy storage system 100 to be adapted to a converter 90 with a maximum operating voltage of 1500V.

[0203] In the above scheme, the power capacity of the battery device 10 can be increased by setting two parallel battery cell groups, and the voltage of the battery device 10 can be increased by connecting 50-54 battery cells 1 in series. Thus, this arrangement is beneficial for the battery device 10 to balance high power capacity and high voltage.

[0204] According to some embodiments of this application, referring to Figures 1-7, each battery device 10 includes 50-54 battery cell groups connected in series, each battery cell group includes two battery cells 1 connected in parallel; each first battery cluster 80 includes eight battery devices 10 connected in series; and / or, each second battery cluster includes eight battery devices 10 connected in series.

[0205] A battery cell group can be composed of battery cells from different battery cell modules 1a, or it can be composed of battery cells from a single battery cell module 1a. The 52 battery cells 1 connected in series can be located in a single battery cell module 1a or in different battery cell modules 1a.

[0206] In the above scheme, the power capacity of the battery device 10 can be increased by setting each battery cell group as two parallel battery cells 1, and the voltage of the battery device 10 can be increased by connecting 50-54 battery cell groups in series. Thus, this setting is beneficial for the battery device 10 to balance higher power capacity and higher voltage.

[0207] According to some embodiments of this application, referring to Figures 1-7, the number of the first battery cluster 80 is the same as the number of the second battery cluster.

[0208] Taking a converter with a maximum operating voltage of 1500V as an example, the number of the first battery cluster 80 is the same as the number of the second battery cluster. This means that when selecting a converter, fewer types of converters can be selected to meet the needs of the energy storage system 100. For example, one type of converter can be selected to simultaneously adapt to the first battery cluster 80 and the second battery cluster.

[0209] In the above scheme, having the same number of first battery clusters 80 as the number of second battery clusters makes it easier for the energy storage system 100 to match the standard converter 90, and also helps to make the power distribution of the converter 90 more uniform and improve the conversion efficiency of the converter 90.

[0210] According to some embodiments of this application, referring to Figures 10-16, the energy storage system 100 further 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 a plurality of battery devices 10 in the second compartment 30. The entire thermal management module 50 is housed within the first compartment 20.

[0211] 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.

[0212] 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.

[0213] In some embodiments, referring to FIG6, the thermal management module 50 may include a pumping device 502, a heat exchanger 503, a compressor 504, a throttling device 505, a fan 506, and a condenser 501. The fan 506 is used to dissipate heat from the condenser 501. The battery device 10 may include a thermal management component 3. 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 cooling 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 cooling circulation loop. The first cooling circulation loop and the second cooling circulation loop are used to cool the battery cells 1. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are connected to form a first refrigerant circulation loop. The first refrigerant circulation loop is used to cool the coolant passing through the heat exchanger 503.

[0214] 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.

[0215] 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.

[0216] The compressor 504, condenser 501, throttling device 505, heat exchanger 503, and compressor 504 are connected to form a first refrigerant circulation loop.

[0217] 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, 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, and the compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a first refrigerant circulation loop.

[0218] 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.

[0219] The heat exchanger 503 is located in both the cooling circulation loop and the first refrigerant circulation loop. 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, supplying refrigerant flow within them. 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.

[0220] In some embodiments, the first compartment 20 further includes a third sub-compartment 203, and a first isolation layer 204 separates the first sub-compartment 201 and the third sub-compartment 203. The first sub-compartment 201 is located above the second sub-compartment 202 and the third sub-compartment 203, and the second sub-compartment 202 and the third sub-compartment 203 are arranged along the length direction X of the first compartment. A portion of the thermal management module 50 is housed in the first sub-compartment 201, and another portion of the thermal management module 50 is housed in the third sub-compartment 203. For example, only the fan 506, condenser 501, and heat exchanger 503 may be housed in the first sub-compartment 201, while the pumping device 502, compressor 504, and throttling device 505 may be housed in the third sub-compartment 203; alternatively, the fan 506, condenser 501, heat exchanger 503, and pumping device 502 may be housed in the first sub-compartment 201, while the compressor 504 and throttling device 505 may be housed in the third sub-compartment 203; alternatively, the fan 506, condenser 501, heat exchanger 503, pumping device 502, and compressor 504 may be housed in the first sub-compartment 201, while the ... third sub-compartment 203; and alternatively, the fan 506, condenser 501, heat exchanger 503, pumping device 502, and compressor 504 may be housed in the third sub-compartment 203. Alternatively, the fan 506, 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, 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 fan 506, condenser 501, heat exchanger 503, and compressor 504 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.

[0221] In some embodiments, ventilation openings are provided on the top and sides of the first sub-compartment 201. The side can be understood as one side of the first compartment 20 along the length direction and / or one side of the first compartment 20 along the width direction.

[0222] In some embodiments, referring to FIG5, the first compartment 20 includes a second sub-compartment 202 and a third sub-compartment 203. The first compartment 20 has a first isolation layer 204 separating 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 battery device 10 located in the first compartment 20 is housed in the second sub-compartment 202, and the entire thermal management module 50 is housed in the third sub-compartment 203. In other embodiments, the energy storage system 100 further includes a first sub-control module 403. The first sub-control module 403 includes a first control part 4031, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located in the first compartment 20. Both the first sub-control module 403 and the battery device 10 located in the first compartment 20 are housed in the second sub-compartment 202, and the first sub-control module 403 is located below the battery device 10.

[0223] In the above scheme, on the one hand, since the thermal management module 50 is entirely housed within the first compartment 20, the thermal management module 50 can be transported synchronously with the first compartment 20, and some pipelines can be connected in advance before transportation, which is beneficial to improving the installation convenience of the energy storage system 100. On the other hand, since the thermal management module 50 simultaneously manages multiple battery devices 10 within the first compartment 20 and multiple battery devices 10 within the second compartment 30, and since the thermal management module 50 is entirely housed within the first compartment 20, most of the space in the second compartment 30 can be used to load the battery devices 10, and the second compartment 30 can have a higher volumetric energy density. Thus, while meeting the transportation requirements of the energy storage system 100, the energy storage system 100 can also have a higher energy density.

[0224] According to some embodiments of this application, referring to Figures 10-16, 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 first sub-compartment 201 is located above the second sub-compartment 202. The battery device 10 located in the first compartment 20 is housed in the second sub-compartment 202, and the entire thermal management module 50 is housed in the first sub-compartment 201.

[0225] 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. A first thermal management module 50 is housed in the first sub-compartment 201 and a battery device 10 is housed in the second sub-compartment 202. The first insulating layer 204 separates the first thermal management module 50 from the battery device 10 located within the first compartment 20.

[0226] 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.

[0227] According to some embodiments of this application, referring to Figures 11-12, the battery devices 10 in the first compartment 20 are arranged in 4 rows and 4 columns, with multiple battery devices 10 in each row arranged along the length direction X of the first compartment and multiple battery devices 10 in each column arranged along the height direction Z; and / or, the battery devices 10 in the second compartment 30 are arranged in 4 rows and 4 columns, with multiple battery devices 10 in each row arranged along the length direction X of the first compartment and multiple battery devices 10 in each column arranged along the height direction Z.

[0228] In some embodiments, the first compartment 20 contains 16 battery devices 10, arranged in 4 rows and 4 columns. In some embodiments, the first compartment 20 contains 32 battery devices 10, arranged in 4 rows and 4 columns, with each column containing two groups of battery devices 10. The two groups of battery devices 10 are arranged along the width direction Y of the first compartment, and the battery devices 10 in each group of battery devices 10 are arranged along the height direction Z.

[0229] In some embodiments, the second compartment 30 contains 16 battery devices 10 arranged in 4 rows and 4 columns. In some embodiments, the second compartment 30 contains 32 battery devices 10 arranged in 4 rows and 4 columns, with each column containing two groups of battery devices 10 arranged along the width direction Y of the first compartment, and each group of battery devices 10 arranged along the height direction Z.

[0230] In the above scheme, the first compartment 20 and / or the second compartment 30 have 4 rows of battery devices 10 arranged along the height direction Z, and 4 columns of battery devices 10 arranged along the length direction X of the first compartment. Under the condition of meeting the transportation requirements of the energy storage system 100, the energy storage system 100 can have a large amount of energy.

[0231] According to some embodiments of this application, referring to Figures 11-12, the height of the first compartment 20 is 1600mm-2200mm, and the height of the second compartment 30 is 1200mm-1800mm.

[0232] The dimension H1 of the first compartment 20 along the height direction Z can be 1600mm, 1610mm, 1620mm, 1630mm, 1640mm, 1650mm, 1660mm, 1670mm, 1680mm, 1690mm, 1700mm, 1710mm, 1720mm, 1730mm, 1740mm, 1750mm, 1760mm, 1770mm, 1780mm, 1790mm, 1800mm, 1810mm, 1820mm, 1830mm, 1840mm, 1850mm, 1860mm, 1870mm, 1880mm, 1890mm, 19 Point values ​​of any one of the following: 00mm, 1910mm, 1920mm, 1930mm, 1940mm, 1950mm, 1960mm, 1970mm, 1980mm, 1990mm, 2000mm, 2010mm, 2020mm, 2030mm, 2040mm, 2050mm, 2060mm, 2070mm, 2080mm, 2090mm, 2100mm, 2110mm, 2120mm, 2130mm, 2140mm, 2150mm, 2160mm, 2170mm, 2180mm, 2190mm, 2200mm, or point values ​​between any two.

[0233] The dimension H2 of the second compartment 30 along the height direction Z can be 1200mm, 1210mm, 1220mm, 1230mm, 1240mm, 1250mm, 1260mm, 1270mm, 1280mm, 1290mm, 1300mm, 1310mm, 1320mm, 1330mm, 1340mm, 1350mm, 1360mm, 1370mm, 1380mm, 1390mm, 1400mm, 1410mm, 1420mm, 1430mm, 1440mm, 1450mm, 1460mm, 1470mm, 1480mm, 1490mm, 15 Point values ​​of any one of the following: 00mm, 1510mm, 1520mm, 1530mm, 1540mm, 1550mm, 1560mm, 1570mm, 1580mm, 1590mm, 1600mm, 1610mm, 1620mm, 1630mm, 1640mm, 1650mm, 1660mm, 1670mm, 1680mm, 1690mm, 1700mm, 1710mm, 1720mm, 1730mm, 1740mm, 1750mm, 1760mm, 1770mm, 1780mm, 1790mm, 1800mm, or point values ​​between any two.

[0234] In the above scheme, setting the height of the first compartment 20 within the range of 1600mm-2200mm and the height of the second compartment 30 within the range of 1200mm-1800mm allows for relatively low heights of both compartments, reducing the difficulty of hoisting them and thus improving the transportation, installation, and maintenance convenience of the energy storage system 100. Furthermore, setting the height of the first compartment 20 relatively large allows some of the thermal management modules 50 to utilize the space along the Z-axis of the height of the first compartment 20 without excessively occupying space in the width and length directions, which is beneficial for increasing the area energy density of the energy storage system 100. Conversely, setting the height of the second compartment 30 relatively small allows for a larger energy capacity while reducing its volume, which is beneficial for increasing the volumetric energy density of the second compartment 30.

[0235] According to some embodiments of this application, referring to Figures 11-12, the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z is 3000mm-4000mm.

[0236] The sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z can be any one of the following values ​​or any value between two of them: 3000mm, 3050mm, 3100mm, 3150mm, 3200mm, 3250mm, 3300mm, 3350mm, 3400mm, 3450mm, 3500mm, 3550mm, 3600mm, 3650mm, 3700mm, 3750mm, 3800mm, 3850mm, 3900mm, 3950mm, and 4000mm.

[0237] In the above scheme, setting the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z to be greater than or equal to 3000 mm can give the energy storage system 100 a larger space, thereby loading more battery devices 10 and thus giving the energy storage system 100 higher energy. Setting the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z to be less than or equal to 4000 mm can make the height of the energy storage system 100 relatively low, reducing the difficulty of hoisting the first compartment 20 and the second compartment 30, thereby improving the installation convenience of the energy storage system 100.

[0238] According to some embodiments of this application, referring to Figures 13-14, the battery devices 10 in the first compartment 20 are arranged in 5 rows and 4 columns, with multiple battery devices 10 in each row arranged along the length direction X of the first compartment and multiple battery devices 10 in each column arranged along the height direction Z; and / or, the battery devices 10 in the second compartment 30 are arranged in 5 rows and 4 columns, with multiple battery devices 10 in each row arranged along the length direction X of the first compartment and multiple battery devices 10 in each column arranged along the height direction Z.

[0239] In some embodiments, the first compartment 20 contains 20 battery devices 10 arranged in 5 rows and 4 columns. In some embodiments, the first compartment 20 contains 40 battery devices 10 arranged in 5 rows and 4 columns, with each column containing multiple battery devices 10 including two groups of battery devices 10. The two groups of battery devices 10 are arranged along the width direction Y of the first compartment, and the multiple battery devices 10 in each group of battery devices 10 are arranged along the height direction Z.

[0240] In some embodiments, the second compartment 30 contains 20 battery devices 10 arranged in 4 rows and 4 columns. In some embodiments, the second compartment 30 contains 40 battery devices 10 arranged in 4 rows and 4 columns, with each column containing multiple battery devices 10 including two groups of battery devices 10. The two groups of battery devices 10 are arranged along the width direction Y of the first compartment, and the multiple battery devices 10 in each group of battery devices 10 are arranged along the height direction Z.

[0241] In the above scheme, the first compartment 20 and / or the second compartment 30 have 5 rows of battery devices 10 arranged along the height direction Z, and 4 columns of battery devices 10 arranged along the length direction X of the first compartment. Under the condition of meeting the transportation requirements of the energy storage system 100, the energy storage system 100 can have a large amount of energy.

[0242] According to some embodiments of this application, referring to Figures 13-14, the height of the first compartment 20 is 1900mm-2500mm, and the height of the second compartment 30 is 1500mm-2100mm.

[0243] The dimension H1 of the first compartment 20 along the height direction Z can be 1900mm, 1910mm, 1920mm, 1930mm, 1940mm, 1950mm, 1960mm, 1970mm, 1980mm, 1990mm, 2000mm, 2010mm, 2020mm, 2030mm, 2040mm, 2050mm, 2060mm, 2070mm, 2080mm, 2090mm, 2100mm, 2110mm, 2120mm, 2130mm, 2140mm, 2150mm, 2160mm, 2170mm, 2180mm, 2190mm, 22 Point values ​​of any one of the following: 00mm, 2210mm, 2220mm, 2230mm, 2240mm, 2250mm, 2260mm, 2270mm, 2280mm, 2290mm, 2300mm, 2310mm, 2320mm, 2330mm, 2340mm, 2350mm, 2360mm, 2370mm, 2380mm, 2390mm, 2400mm, 2410mm, 2420mm, 2430mm, 2440mm, 2450mm, 2460mm, 2470mm, 2480mm, 2490mm, 2500mm, or point values ​​between any two.

[0244] The dimension H2 of the second compartment 30 along the height direction Z can be 1500mm, 1510mm, 1520mm, 1530mm, 1540mm, 1550mm, 1560mm, 1570mm, 1580mm, 1590mm, 1600mm, 1610mm, 1620mm, 1630mm, 1640mm, 1650mm, 1660mm, 1670mm, 1680mm, 1690mm, 1700mm, 1710mm, 1720mm, 1730mm, 1740mm, 1750mm, 1760mm, 1770mm, 1780mm, 1790mm, 18 Point values ​​of any one of the following: 00mm, 1810mm, 1820mm, 1830mm, 1840mm, 1850mm, 1860mm, 1870mm, 1880mm, 1890mm, 1900mm, 1910mm, 1920mm, 1930mm, 1940mm, 1950mm, 1960mm, 1970mm, 1980mm, 1990mm, 2000mm, 2010mm, 2020mm, 2030mm, 2040mm, 2050mm, 2060mm, 2070mm, 2080mm, 2090mm, 2100mm, or point values ​​between any two.

[0245] In the above scheme, setting the height of the first compartment 20 within the range of 1900mm-2500mm and the height of the second compartment 30 within the range of 1500mm-2100mm allows for relatively low heights of both compartments, reducing the difficulty of hoisting them and thus improving the transportation, installation, and maintenance convenience of the energy storage system 100. Furthermore, setting the height of the first compartment 20 relatively large allows some of the thermal management modules 50 to utilize the space along the Z-axis of the height of the first compartment 20 without excessively occupying space in the width and length directions, which is beneficial for increasing the area energy density of the energy storage system 100. Conversely, setting the height of the second compartment 30 relatively small allows for a larger energy capacity while reducing its volume, which is beneficial for increasing the volumetric energy density of the second compartment 30.

[0246] According to some embodiments of this application, referring to Figures 13-14, the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z is 3500mm-4500mm.

[0247] The sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z can be any one of the following values ​​or any value between two of them: 3500mm, 3550mm, 3600mm, 3650mm, 3700mm, 3750mm, 3800mm, 3850mm, 3900mm, 3950mm, 4000mm, 4050mm, 4100mm, 4150mm, 4200mm, 4250mm, 4300mm, 4350mm, 4400mm, 4450mm, and 4500mm.

[0248] In the above scheme, setting the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z to be greater than or equal to 3500mm allows the energy storage system 100 to have a larger space, thereby loading more battery devices 10 and enabling the energy storage system 100 to have higher energy. Setting the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z to be less than or equal to 4500mm allows the height of the energy storage system 100 to be set relatively low, reducing the difficulty of hoisting the first compartment 20 and the second compartment 30, thereby improving the installation convenience of the energy storage system 100.

[0249] According to some embodiments of this application, referring to Figures 15-16, the battery devices 10 in the first compartment 20 are arranged in 6 rows and 4 columns, with multiple battery devices 10 in each row arranged along the length direction X of the first compartment and multiple battery devices 10 in each column arranged along the height direction Z; and / or, the battery devices 10 in the second compartment 30 are arranged in 6 rows and 4 columns, with multiple battery devices 10 in each row arranged along the length direction X of the first compartment and multiple battery devices 10 in each column arranged along the height direction Z.

[0250] In some embodiments, the first compartment 20 contains 24 battery devices 10 arranged in 6 rows and 4 columns. In some embodiments, the first compartment 20 contains 48 battery devices 10 arranged in 6 rows and 4 columns. Each column contains multiple battery devices 10 including two groups of battery devices 10. The two groups of battery devices 10 are arranged along the width direction Y of the first compartment, and the multiple battery devices 10 in each group of battery devices 10 are arranged along the height direction Z.

[0251] In some embodiments, the second compartment 30 contains 24 battery devices 10 arranged in 6 rows and 4 columns. In some embodiments, the second compartment 30 contains 48 battery devices 10 arranged in 6 rows and 4 columns. Each column contains multiple battery devices 10 including two groups of battery devices 10. The two groups of battery devices 10 are arranged along the width direction Y of the first compartment, and the multiple battery devices 10 in each group of battery devices 10 are arranged along the height direction Z.

[0252] In the above scheme, the first compartment 20 and / or the second compartment 30 have 6 rows of battery devices 10 arranged along the height direction Z, and 4 columns of battery devices 10 arranged along the length direction X of the first compartment. Under the condition of meeting the transportation requirements of the energy storage system 100, the energy storage system 100 can have a large amount of energy.

[0253] According to some embodiments of this application, referring to Figures 15-16, the height of the first compartment 20 is 2200mm-2800mm, and the height of the second compartment 30 is 1800mm-2400mm.

[0254] The dimension H1 of the first compartment 20 along the height direction Z can be 2200mm, 2210mm, 2220mm, 2230mm, 2240mm, 2250mm, 2260mm, 2270mm, 2280mm, 2290mm, 2300mm, 2310mm, 2320mm, 2330mm, 2340mm, 2350mm, 2360mm, 2370mm, 2380mm, 2390mm, 2400mm, 2410mm, 2420mm, 2430mm, 2440mm, 2450mm, 2460mm, 2470mm, 2480mm, 2490mm, 25 Point values ​​of any one of the following: 00mm, 2510mm, 2520mm, 2530mm, 2540mm, 2550mm, 2560mm, 2570mm, 2580mm, 2590mm, 2600mm, 2610mm, 2620mm, 2630mm, 2640mm, 2650mm, 2660mm, 2670mm, 2680mm, 2690mm, 2700mm, 2710mm, 2720mm, 2730mm, 2740mm, 2750mm, 2760mm, 2770mm, 2780mm, 2790mm, 2800mm, or point values ​​between any two.

[0255] The dimension H2 of the second compartment 30 along the height direction Z can be 1800mm, 1810mm, 1820mm, 1830mm, 1840mm, 1850mm, 1860mm, 1870mm, 1880mm, 1890mm, 1900mm, 1910mm, 1920mm, 1930mm, 1940mm, 1950mm, 1960mm, 1970mm, 1980mm, 1990mm, 2000mm, 2010mm, 2020mm, 2030mm, 2040mm, 2050mm, 2060mm, 2070mm, 2080mm, 2090mm, 21 The point value of any one of the following: 00mm, 2110mm, 2120mm, 2130mm, 2140mm, 2150mm, 2160mm, 2170mm, 2180mm, 2190mm, 2200mm, 2210mm, 2220mm, 2230mm, 2240mm, 2250mm, 2260mm, 2270mm, 2280mm, 2290mm, 2300mm, 2310mm, 2320mm, 2330mm, 2340mm, 2350mm, 2360mm, 2370mm, 2380mm, 2390mm, 2400mm, or the point value between any two.

[0256] In the above scheme, setting the height of the first compartment 20 within the range of 2200mm-2800mm and the height of the second compartment 30 within the range of 1800mm-2400mm allows for relatively low heights of both compartments, reducing the difficulty of hoisting them and thus improving the transportation, installation, and maintenance convenience of the energy storage system 100. Furthermore, setting the height of the first compartment 20 relatively large allows some of the thermal management modules 50 to utilize the space along the Z-axis of the height of the first compartment 20 without excessively occupying space in the width and length directions, which is beneficial for increasing the area energy density of the energy storage system 100. Conversely, setting the height of the second compartment 30 relatively small allows for a larger energy capacity while reducing its volume, which is beneficial for increasing the volumetric energy density of the second compartment 30.

[0257] According to some embodiments of this application, referring to Figures 15-16, the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z is 4000mm-5000mm.

[0258] The sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z can be any one of the following values ​​or any combination of two values: 4000mm, 4050mm, 4100mm, 4150mm, 4200mm, 4250mm, 4300mm, 4350mm, 4400mm, 4450mm, 4500mm, 4550mm, 4600mm, 4650mm, 4700mm, 4750mm, 4800mm, 4850mm, 4900mm, 4950mm, and 5000mm.

[0259] Setting the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z to be greater than or equal to 4000 mm allows the energy storage system 100 to have a larger space, thereby accommodating more battery devices 10 and enabling the energy storage system 100 to have higher energy. Setting the sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z to be less than or equal to 5000 mm allows the energy storage system 100 to be set at a relatively lower height, reducing the difficulty of hoisting the first compartment 20 and the second compartment 30 and thus improving the ease of installation of the energy storage system 100.

[0260] According to some embodiments of this application, referring to FIG5 and FIG11-FIG16, the energy storage system 100 further includes a control module 40, which is used to electrically control the plurality of battery devices 10 in the first compartment 20 and the plurality of battery devices 10 in the second compartment 30.

[0261] 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.

[0262] 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.

[0263] 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.

[0264] In the above scheme, the first compartment 20 and the second compartment 30 are modularly combined along the height direction Z, and the components located in the first compartment 20 and the second compartment 30 are integrated into a complete system through the control module 40. While meeting transportation requirements, the first compartment 20 and its components are transported independently, as are the second compartment 30 and its components, and after transportation, they form a high-energy storage system 100. This allows the energy storage system 100 to balance better transportation convenience with higher energy output.

[0265] According to some embodiments of this application, referring to FIG5 and FIGS. 11-16, the energy storage system 100 further includes a first sub-control module 403. The first sub-control module 403 includes a second control part 4032, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located in the first compartment 20. 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. The battery device 10 located in the first compartment 20 is accommodated in the second sub-compartment 202, and the first sub-control module 403 is located in the third sub-compartment 203.

[0266] 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.

[0267] In some embodiments, the second control section 4032 is a low-voltage section, and the second control section 4032 and the control module 40 transmit communication data, which enables the control module 40 to monitor and control the battery device 10 located in the first compartment 20.

[0268] 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, thereby realizing the communicative connection between the first sub-control module 403 and the control module 40.

[0269] 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, which are all communicatively connected to the same control module 40.

[0270] 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.

[0271] 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 the first data and transmit the processed data to the control module 40.

[0272] 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 cell 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.

[0273] In the above scheme, by placing the first sub-control module 403 in the third sub-compartment 203, the first sub-control module 403 and the battery device 10 located in the second sub-compartment 202 can be arranged along the length direction, which facilitates the installation and independent maintenance of the first sub-control module 403 and the battery device 10, and helps to improve the installation and maintenance efficiency of the energy storage system 100.

[0274] According to some embodiments of this application, referring to FIG5 and FIGS. 11-16, the energy storage system 100 further includes a second sub-control module 404. The second sub-control module 404 includes a fourth control part 4042, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located in the second compartment 30. 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. The battery device 10 located in the second compartment 30 is accommodated in the fourth sub-compartment 301, and the second sub-control module 404 is accommodated in the fifth sub-compartment 302.

[0275] In some embodiments, the fourth control section 4042 is a low-voltage section, and the fourth control section 4042 and the control module 40 transmit communication data, which can enable the control module 40 to monitor and control the battery device 10 located in the second compartment 30.

[0276] 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 realizing the communicative connection between the second sub-control module 404 and the control module 40.

[0277] There can be one second sub-control module 404, which is communicatively connected to the control module 40; or there can be multiple second sub-control modules 404, which are all communicatively connected to the same control module 40.

[0278] In some embodiments, 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 fourth control portion 4042 of the second sub-control module 404 is used to forward the second data.

[0279] In some embodiments, 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 the second data and transmit the processed data to the control module 40.

[0280] 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, so that the second sub-control module 404 can 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 process it before forwarding it to the control module 40.

[0281] In some embodiments, 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 arranged in a three-level framework, which reduces the length and complexity of the communication harness, reduces sampling error, 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.

[0282] In the above scheme, by placing the second sub-control module 404 in the fifth sub-compartment 302, the second sub-control module 404 and the battery device 10 located in the fourth sub-compartment 301 can be arranged along the length direction, which facilitates the installation and independent maintenance of the second sub-control module 404 and the battery device 10, and helps to improve the installation and maintenance efficiency of the energy storage system 100.

[0283] According to some embodiments of this application, referring to FIG5 and FIG11-FIG16, the energy storage system 100 further includes a power distribution module 401 and a fire control module 402, both of which are 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.

[0284] 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, the fire control module 402, the thermal management module 50, etc.

[0285] In some embodiments, the power distribution module 401 and the control module 40 are integrated into one unit. This integration can be understood as a physical fusion of the power distribution module 401 and the control module 40, forming a single unit. During assembly, the assembly of the power distribution module 401 and the control module 40 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 box-shaped component with a receiving cavity, etc.

[0286] In the above scheme, by setting the control module 40, power distribution module 401 and fire control module 402 in the fifth sub-compartment 302, the height of the control module 40, power distribution module 401 and fire control module 402 is relatively low, which facilitates the maintenance and repair of the control module 40, power distribution module 401 and fire control module 402.

[0287] According to some embodiments of this application, referring to FIG3, the length of the housing 11 is 240mm-310mm, and / or the width of the housing 11 is 60mm-85mm.

[0288] The length L of the outer casing 11 can be 240mm, 241mm, 242mm, 243mm, 244mm, 245mm, 246mm, 247mm, 248mm, 249mm, 250mm, 261mm, 262mm, 263mm, 264mm, 265mm, 266mm, 267mm, 268mm, 269mm, 270mm, 271mm, 272mm, 273mm, 274mm, 275mm, 276mm, 277mm, 278mm, 279mm, or 280mm. Point values ​​of any one of the following: 281mm, 282mm, 283mm, 284mm, 285mm, 286mm, 287mm, 288mm, 289mm, 290mm, 291mm, 292mm, 293mm, 294mm, 295mm, 296mm, 297mm, 298mm, 299mm, 300mm, 301mm, 302mm, 303mm, 304mm, 305mm, 306mm, 307mm, 308mm, 309mm, 310mm, or any combination thereof.

[0289] In some embodiments, the length direction of the outer shell 11 extends along the length direction X of the first compartment, and it is not required that the length direction of the outer shell 11 is completely parallel to the length direction X of the first compartment; they can be approximately parallel.

[0290] The width K of the outer casing 11 can be any one of 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, 72mm, 73mm, 74mm, 75mm, 76mm, 77mm, 78mm, 79mm, 80mm, 81mm, 82mm, 83mm, 84mm, 85mm or any value between two of them.

[0291] In some embodiments, the width direction of the outer shell 11 extends along the width direction Y of the first compartment, and it is not required that the width direction of the outer shell 11 is completely parallel to the width direction Y of the first compartment; they can be approximately parallel.

[0292] In the above scheme, setting the length and width of the outer casing 11 within a reasonable range is beneficial to enable the battery device 10, including the battery cell 1, to make efficient use of the internal space of the first compartment 20 and the second compartment 30 in the length direction X and width direction Y of the first compartment.

[0293] According to some embodiments of this application, referring to Figures 1-3, the height of the outer shell 11 is the dimension of the outer shell 11 along the height direction Z, the length of the outer shell 11 is the dimension of the outer shell 11 along the length direction of the compartment, the width of the outer shell 11 is the dimension of the outer shell 11 along the width direction of the compartment, and the dimension of the compartment in the length direction is greater than the dimension of the compartment in the width direction.

[0294] In some embodiments, the length of the outer shell 11 is the dimension of the outer shell 11 along the length direction X of the first compartment, and it is not required that the length direction of the outer shell 11 be parallel to the length direction X of the first compartment, but can be approximately parallel; the width of the outer shell 11 is the dimension of the outer shell 11 along the width direction Y of the first compartment, and it is not required that the width of the outer shell 11 be the dimension of the outer shell 11 along the width direction Y of the first compartment, but can be approximately parallel; the height of the outer shell 11 is the dimension of the outer shell 11 along the height direction Z, and it is not required that the height direction Z of the outer shell 11 be parallel to the height direction Z, but can be approximately parallel.

[0295] In the above scheme, the length direction of the outer casing 11 is set to be consistent with the length direction X of the first compartment, the width direction of the outer casing 11 is set to be consistent with the width direction Y of the first compartment, and the height direction Z of the outer casing 11 is set to be consistent with the height direction Z. This allows the battery device 10, including the battery cell 1, to be arranged in the length direction X, width direction, and height direction Z of the first compartment, reducing the wasted space inside the first compartment 20 and the second compartment 30 and improving the energy of the energy storage system 100. In addition, it can also simplify the wiring of the energy storage system 100.

[0296] According to some embodiments of this application, referring to FIG17, the width of the battery device 10 is 1100mm-1300mm, the length of the battery device 10 is 2000mm-2500mm, and the height of the battery device 10 is 230mm-290mm.

[0297] The width K1 of the battery device 10 can be any one of 1100mm, 1110mm, 1120mm, 1130mm, 1140mm, 1150mm, 1160mm, 1170mm, 1180mm, 1190mm, 1200mm, 1210mm, 1220mm, 1230mm, 1240mm, 1250mm, 1260mm, 1270mm, 1280mm, 1290mm, 1300mm or any value between two of them.

[0298] In some embodiments, the width direction of the battery device 10 extends along the length direction X of the first compartment, and it is not required that the width direction of the battery device 10 is completely parallel to the length direction X of the first compartment; they can be approximately parallel.

[0299] The width L1 of the battery device 10 can be 2000mm, 2010mm, 2020mm, 2030mm, 2040mm, 2050mm, 2060mm, 2070mm, 2080mm, 2090mm, 2100mm, 2110mm, 2120mm, 2130mm, 2140mm, 2150mm, 2160mm, 2170mm, 2180mm, 2190mm, 2200mm, 2210mm, 2220mm, 2230mm, 2240mm, or 2250mm. The point value is any one of the following values: m, 2260mm, 2270mm, 2280mm, 2290mm, 2300mm, 2310mm, 2320mm, 2330mm, 2340mm, 2350mm, 2360mm, 2370mm, 2380mm, 2390mm, 2400mm, 2410mm, 2420mm, 2430mm, 2440mm, 2450mm, 2460mm, 2470mm, 2480mm, 2490mm, 2500mm, or any combination thereof.

[0300] In some embodiments, the length direction of the battery device 10 extends along the width direction Y of the first compartment, and it is not required that the length direction of the battery device 10 is completely parallel to the width direction Y of the first compartment; they can be approximately parallel.

[0301] The height H3 of the battery device 10 can be 230mm, 231mm, 232mm, 233mm, 234mm, 235mm, 236mm, 237mm, 238mm, 239mm, 240mm, 241mm, 242mm, 243mm, 244mm, 245mm, 246mm, 247mm, 248mm, 249mm, 250mm, 251mm, 252mm, 253mm, 254mm, 25... Point values ​​of any one of the following: 5mm, 256mm, 257mm, 258mm, 259mm, 260mm, 261mm, 262mm, 263mm, 264mm, 265mm, 266mm, 267mm, 268mm, 269mm, 270mm, 271mm, 272mm, 273mm, 274mm, 275mm, 280mm, 285mm, 290mm, 290mm, or any combination thereof.

[0302] In some embodiments, the height direction Z of the battery device 10 extends along the height direction Z, and it is not required that the height direction Z of the battery device 10 be completely parallel to the height direction Z, but can be approximately parallel.

[0303] In the above scheme, with the thermal management module 50 fully housed within the first compartment 20, limiting the size of the battery device 10 to a reasonable range allows the battery device 10 to efficiently utilize the internal space of the first compartment 20 and the second compartment 30. This, in turn, enables the energy storage system 100 to possess greater energy.

[0304] According to some embodiments of this application, referring to Figures 1, 2 and 17, the height of the battery device 10 is the dimension of the battery device 10 along the height direction Z, the length of the battery device 10 is the dimension of the battery device 10 along the width direction Y of the first compartment, the width of the battery device 10 is the dimension of the battery device 10 along the length direction X of the first compartment, and the dimension of the first compartment 20 in its length direction is greater than the dimension of the first compartment 20 in its width direction.

[0305] In some embodiments, the width of the battery device 10 is the dimension of the battery device 10 along the length direction X of the first compartment, and it is not required that the width direction of the battery device 10 be parallel to the length direction X of the first compartment, but can be approximately parallel; the length of the battery device 10 is the dimension of the battery device 10 along the width direction Y of the first compartment, and it is not required that the length of the battery device 10 be the dimension of the battery device 10 along the width direction Y of the first compartment, but can be approximately parallel; the height of the battery device 10 is the dimension of the battery device 10 along the height direction Z, and it is not required that the height direction Z of the battery device 10 be parallel to the height direction Z, but can be approximately parallel.

[0306] In the above scheme, the width direction of the battery device 10 is set to be consistent with the length direction X of the first compartment, the length direction of the battery device 10 is set to be consistent with the width direction Y of the first compartment, and the height direction Z of the battery device 10 is set to be consistent with the height direction Z. This allows the battery device 10, including the battery cells 1, to be arranged in the length direction X, width direction, and height direction Z of the first compartment, reducing wasted space inside the first compartment 20 and the second compartment 30 and improving the energy of the energy storage system 100. In addition, it can also simplify the wiring of the energy storage system 100.

[0307] According to some embodiments of this application, referring to Figures 1-16, 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.

[0308] 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.

[0309] The total weight of the second compartment 30 and the components disposed within the second compartment 30 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.

[0310] 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.

[0311] According to some embodiments of this application, referring to Figures 1-16, the standard container is a 20-foot standard container.

[0312] 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.

[0313] According to some embodiments of this application, referring to Figures 1-16, each battery device 10 includes a plurality of battery cells 1, and the positive terminal and negative terminal of each battery cell 1 are disposed at the same end of the housing 11 in the height direction Z of the housing 11.

[0314] 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 length direction of the housing 11. This arrangement allows the positive and negative terminals to share a portion of the space along the length direction of the housing 11, thereby increasing the energy density of the battery device 10 including the aforementioned battery cell 1.

[0315] In the above scheme, the positive and negative terminals can share some space, which is beneficial to improving the energy density of the battery cell 1.

[0316] According to some embodiments of this application, referring to Figures 3-6 and Figures 10-12, this application provides an energy storage system 100, which includes multiple battery devices 10, a first compartment 20, a second compartment 30, a thermal management module 50, a control module 40, a first sub-control module 403, a second sub-control module 404, a power distribution module 401, and a fire control module 402. The first compartment 20 and the second compartment 30 each contain a battery device 10. 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 sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z is greater than the dimension of a 20-foot standard container along the height direction Z. The dimensions of the first compartment 20 and the second compartment 30 along their length direction are the same as the dimension of a 20-foot standard container along their length direction. The dimensions of the first compartment 20 and the second compartment 30 along their width direction are the same as the dimension of a 20-foot standard container along their width direction. The dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both smaller than the dimension of a 20-foot standard container along the height direction Z. Multiple battery devices 10 located within the first compartment 20 include multiple first battery clusters 80, and multiple battery devices 10 located within the second compartment 30 include multiple second battery clusters. A first sub-control module 403 includes a first control section 4031, which is electrically connected to at least one first battery cluster 80 and to a first bus terminal 405 for electrical connection to a converter 90. A second sub-control module 404 includes a third control section 4041, which is electrically connected to at least one second battery cluster. The third control section is electrically connected to a second bus terminal 406 for electrical connection to the converter 90. The number of first battery clusters 80 is the same as the number of second battery clusters. 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 battery device 10 located within the first compartment 20 is housed in the second sub-compartment 202. 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 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 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 within the first compartment 20 is housed in the second sub-compartment 202, and the first sub-control module 403 is located in the third sub-compartment 203. The first sub-control module 403 includes a second control section 4032, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located within the first compartment 20. The second sub-control module 404 includes a fourth control section 4042, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located within 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 multiple battery devices 10 within the second compartment 30. The battery device 10 located in the second compartment 30 is housed in the fourth sub-compartment 301, and the second sub-control module 404 is housed in the fifth sub-compartment 302. Both the control module 40 and the fire control module 402 are 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.

[0317] Each battery device 10 includes multiple battery cells 1, and each battery cell 1 includes a casing 11. The height of the casing 11 is its dimension along the height direction Z, the length of the casing 11 is its dimension along the length direction of the compartment, and the width of the casing 11 is its dimension along the width direction of the compartment. The length dimension of the compartment is greater than its width dimension. The height of the casing 11 is 220mm-230mm. All battery devices 10 in the first compartment 20 are arranged in 4 rows and 4 columns, and all battery devices 10 in the second compartment 30 are arranged in 4 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.

[0318] According to some embodiments of this application, referring to Figures 3-6 and Figures 10, 13 and 14, this application provides an energy storage system 100, which includes multiple battery devices 10, a first compartment 20, a second compartment 30, a thermal management module 50, a control module 40, a first sub-control module 403, a second sub-control module 404, a power distribution module 401 and a fire control module 402. The first compartment 20 and the second compartment 30 each contain a battery device 10. 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 sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z is greater than the dimension of a 20-foot standard container along the height direction Z. The dimensions of the first compartment 20 and the second compartment 30 along their length direction are the same as the dimension of a 20-foot standard container along their length direction. The dimensions of the first compartment 20 and the second compartment 30 along their width direction are the same as the dimension of a 20-foot standard container along their width direction. The dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both smaller than the dimension of a 20-foot standard container along the height direction Z. Multiple battery devices 10 located within the first compartment 20 include multiple first battery clusters 80, and multiple battery devices 10 located within the second compartment 30 include multiple second battery clusters. A first sub-control module 403 includes a first control section 4031, which is electrically connected to at least one first battery cluster 80 and to a first bus terminal 405 for electrical connection to a converter 90. A second sub-control module 404 includes a third control section 4041, which is electrically connected to at least one second battery cluster. The third control section is electrically connected to a second bus terminal 406 for electrical connection to the converter 90. The number of first battery clusters 80 is the same as the number of second battery clusters. 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 battery device 10 located within the first compartment 20 is housed in the second sub-compartment 202. 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 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 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 within the first compartment 20 is housed in the second sub-compartment 202, and the first sub-control module 403 is located in the third sub-compartment 203. The first sub-control module 403 includes a second control section 4032, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located within the first compartment 20. The second sub-control module 404 includes a fourth control section 4042, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located within 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 multiple battery devices 10 within the second compartment 30. The battery device 10 located in the second compartment 30 is housed in the fourth sub-compartment 301, and the second sub-control module 404 is housed in the fifth sub-compartment 302. Both the control module 40 and the fire control module 402 are 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.

[0319] Each battery device 10 includes multiple battery cells 1, and each battery cell 1 includes a casing 11. The height of the casing 11 is its dimension along the height direction Z, the length of the casing 11 is its dimension along the length direction of the compartment, and the width of the casing 11 is its dimension along the width direction of the compartment. The length dimension of the compartment is greater than its width dimension. The height of the casing 11 is 220mm-230mm. The battery devices 10 in the first compartment 20 are arranged in 5 rows and 4 columns, and the battery devices 10 in the second compartment 30 are also arranged in 5 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 four battery devices 10 at the top of each column are connected in series to form a first battery cluster 80, and the bottom row of battery devices 10 is connected in series to form a first battery cluster 80. The top four battery devices 10 in each column are connected in series to form a second battery cluster, and the bottom row of battery devices 10 is connected in series to form a second battery cluster.

[0320] According to some embodiments of this application, referring to Figures 3-6 and Figures 10, 15 and 16, this application provides an energy storage system 100, which includes multiple battery devices 10, a first compartment 20, a second compartment 30, a thermal management module 50, a control module 40, a first sub-control module 403, a second sub-control module 404, a power distribution module 401 and a fire control module 402. The first compartment 20 and the second compartment 30 each contain a battery device 10. 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 sum of the dimensions of the first compartment 20 and the second compartment 30 along the height direction Z is greater than the dimension of a 20-foot standard container along the height direction Z. The dimensions of the first compartment 20 and the second compartment 30 along their length direction are the same as the dimension of a 20-foot standard container along their length direction. The dimensions of the first compartment 20 and the second compartment 30 along their width direction are the same as the dimension of a 20-foot standard container along their width direction. The dimensions of the first compartment 20 and the second compartment 30 along the height direction Z are both smaller than the dimension of a 20-foot standard container along the height direction Z. Multiple battery devices 10 located within the first compartment 20 include multiple first battery clusters 80, and multiple battery devices 10 located within the second compartment 30 include multiple second battery clusters. A first sub-control module 403 includes a first control section 4031, which is electrically connected to at least one first battery cluster 80 and to a first bus terminal 405 for electrical connection to a converter 90. A second sub-control module 404 includes a third control section 4041, which is electrically connected to at least one second battery cluster. The third control section is electrically connected to a second bus terminal 406 for electrical connection to the converter 90. The number of first battery clusters 80 is the same as the number of second battery clusters. 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 battery device 10 located within the first compartment 20 is housed in the second sub-compartment 202. 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 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 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 within the first compartment 20 is housed in the second sub-compartment 202, and the first sub-control module 403 is located in the third sub-compartment 203. The first sub-control module 403 includes a second control section 4032, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located within the first compartment 20. The second sub-control module 404 includes a fourth control section 4042, which is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located within 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 multiple battery devices 10 within the second compartment 30. The battery device 10 located in the second compartment 30 is housed in the fourth sub-compartment 301, and the second sub-control module 404 is housed in the fifth sub-compartment 302. Both the control module 40 and the fire control module 402 are 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.

[0321] Each battery device 10 includes multiple battery cells 1, and each battery cell 1 includes a casing 11. The height of the casing 11 is its dimension along the height direction Z, the length of the casing 11 is its dimension along the length direction of the compartment, and the width of the casing 11 is its dimension along the width direction of the compartment. The length dimension of the compartment is greater than its width dimension. The height of the casing 11 is 220mm-230mm. The battery devices 10 in the first compartment 20 are arranged in 6 rows and 4 columns, and the battery devices 10 in the second compartment 30 are also arranged in 6 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 upper four battery devices 10 in each column are connected in series to form a second battery cluster, and the lower two rows of battery devices 10 are connected in series to form a second battery cluster.

[0322] 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

An energy storage system characterized by include: Multiple battery devices; A first compartment and a second compartment, both containing the battery device, are stacked along their height, with the first compartment located above the second compartment. The dimensions of the first and second compartments along their height are both smaller than the dimensions of a standard container along their height. The dimensions of the first and second compartments along their length are the same as the dimensions of a standard container along their length and width. Each of the battery devices includes multiple battery cells, and each battery cell includes a housing with a height of 200mm-230mm. All the battery devices in the first compartment are arranged in 4-6 rows, with multiple battery devices in each row arranged along the length of the first compartment; and / or, all the battery devices in the second compartment are arranged in 4-6 rows, with multiple battery devices in each row arranged along the length of the first compartment. The energy storage system according to claim 1 is characterized in that, All 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, all the battery devices in the second compartment are arranged in four columns, with multiple battery devices in each column arranged along the height direction. The energy storage system according to claim 1 or 2, 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 the dimensions of a standard container along the height direction. The energy storage system of any one of claims 1-3, wherein The plurality of battery devices located within the first compartment include a plurality of first battery clusters, each of the first battery clusters including a plurality of battery devices connected in series; At least one plurality of the battery devices in the first battery cluster are arranged in at least one row, the battery devices in the first battery cluster being arranged in a row along the height direction; and / or, the plurality of the battery devices in the first battery cluster are arranged in at least one column, the battery devices in the first battery cluster being arranged in a column along the length direction of the first compartment. The energy storage system of claim 4, wherein All the battery devices in the first compartment are arranged in 5 rows and 4 columns, with multiple battery devices in each column arranged along the height direction; the top 4 battery devices in each column are connected in series to form a first battery cluster, and the bottom row of battery devices are connected in series to form a first battery cluster. The energy storage system according to claim 4 is characterized in that, The battery devices inside the first compartment are arranged in 6 rows and 4 columns, with multiple battery devices in each column arranged along the height direction; the four battery devices at the top of each column are connected in series to form a first battery cluster, and the battery devices in each of the two rows below are connected in series to form a first battery cluster. The energy storage system according to any one of claims 1-3 is characterized in that, The plurality of battery devices located within the second compartment include a plurality of second battery clusters, each of the second battery clusters including a plurality of battery devices connected in series; At least one of the battery devices in the second battery cluster is arranged in at least one row, with the battery devices in the second battery cluster arranged in a row along the height direction; and / or, the battery devices in the second battery cluster are arranged in at least one column, with each column of battery devices in the second battery cluster arranged in a column along the length direction of the second compartment. The energy storage system according to claim 7 is characterized in that, All the battery devices in the second compartment are arranged in 5 rows and 4 columns, with multiple battery devices in each column arranged along the height direction; the top 4 battery devices in each column are connected in series to form a second battery cluster, and the bottom row of battery devices are connected in series to form a second battery cluster. The energy storage system of claim 7, wherein The battery devices in the second compartment are arranged in 6 rows and 4 columns, with multiple battery devices in each column arranged along the height direction; the upper 4 battery devices in each column are connected in series to form a second battery cluster, and the battery devices in each of the lower 2 rows are connected in series to form a second battery cluster. The energy storage system of any one of claims 1-9, wherein The energy storage system includes a first sub-control module, a second sub-control module, a first bus terminal, and a second bus terminal. The first compartment contains a plurality of first battery clusters, each of which includes a plurality of battery devices connected in series. The first sub-control module includes a first control part, which is electrically connected to the first bus terminal and the first battery cluster. The first bus terminal is used to be electrically connected to a converter. The second compartment contains a plurality of second battery clusters, each second battery cluster including a plurality of battery devices connected in series. The second sub-control module includes a third control part, which is electrically connected to the second bus terminal and the second battery cluster. The second bus terminal is used for electrical connection with the converter. Both the first bus terminal and the second bus terminal are housed within the second compartment. The energy storage system according to any one of claims 1-9 is characterized in that, The energy storage system includes a first sub-control module and a first converter. The first compartment contains a plurality of first battery clusters, each of which includes a plurality of battery devices connected in series. The first sub-control module includes a first control part, which is electrically connected to the first converter and the first battery cluster. The first converter is integrated with the first sub-control module and is located on one side of the first compartment along the length of the first compartment. And / or, the energy storage system includes a second sub-control module and a second converter, the second compartment contains a plurality of second battery clusters, each second battery cluster includes a plurality of said battery devices connected in series, the second sub-control module includes a third control part, the third control part is electrically connected to the second converter and the second battery cluster, the second converter is integrated with the second sub-control module and is located on one side of the second compartment along the length direction of the first compartment. The energy storage system according to any one of claims 10-11 is characterized in that, Each of the first battery clusters is provided with a first sub-control module, and each of the second battery clusters is provided with a second sub-control module. The energy storage system according to claim 12 is characterized in that, Each of the battery devices comprises 100-108 battery cells connected in series; Each of the first battery clusters includes four of the battery devices connected in series; and / or, each of the second battery clusters includes four of the battery devices connected in series. The energy storage system of claim 12, wherein Each of the battery devices includes two parallel battery cell groups, and each battery cell group includes 50-54 battery cells connected in series. Each of the first battery clusters includes eight of the battery devices connected in series; and / or, each of the second battery clusters includes eight of the battery devices connected in series. The energy storage system of claim 12, wherein Each of the battery devices comprises 50-54 battery cells connected in series, and each battery cell group comprises two battery cells connected in parallel. Each of the first battery clusters includes eight of the battery devices connected in series; and / or, each of the second battery clusters includes eight of the battery devices connected in series. The energy storage system according to any one of claims 11-15 is characterized in that, The number of the first battery cluster is the same as the number of the second battery cluster. The energy storage system according to any one of claims 1-16 is characterized in that, The energy storage system also includes a thermal management module, which is used to perform thermal management on the plurality of battery devices in the first compartment and the plurality of battery devices in the second compartment. The entire thermal management module is housed within the first compartment. The energy storage system according to claim 17 is 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 battery device located in the first compartment is housed in the second sub-compartment, and the entire thermal management module is housed in the first sub-compartment. The energy storage system according to claim 17 or 18 is characterized in that, The battery devices inside the first compartment are arranged in 4 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height. And / or, the battery devices in the second compartment are arranged in 4 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height. The energy storage system according to claim 19 is characterized in that, The height of the first compartment is 1600mm-2200mm, and the height of the second compartment is 1200mm-1800mm. The energy storage system according to claim 19 or 20 is characterized in that, The sum of the dimensions of the first compartment and the second compartment along the height direction is 3000mm-4000mm. The energy storage system according to claim 17 or 18 is characterized in that, The battery devices inside the first compartment are arranged in 5 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height. And / or, the battery devices in the second compartment are arranged in 5 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height. The energy storage system according to claim 22 is characterized in that, The height of the first compartment is 1900mm-2500mm, and the height of the second compartment is 1500mm-2100mm. The energy storage system according to claim 22 or 23 is characterized in that, The sum of the dimensions of the first compartment and the second compartment along the height direction is 3500mm-4500mm. The energy storage system according to claim 17 or 18 is characterized in that, The battery devices inside the first compartment are arranged in 6 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height. And / or, the battery devices in the second compartment are arranged in 6 rows and 4 columns, with multiple battery devices in each row arranged along the length of the first compartment and multiple battery devices in each column arranged along the height. The energy storage system according to claim 25 is characterized in that, The height of the first compartment is 2200mm-2800mm, and the height of the second compartment is 1800mm-2400mm. The energy storage system according to claim 25 or 26 is characterized in that, The sum of the dimensions of the first compartment and the second compartment along the height direction is 4000mm-5000mm. The energy storage system according to any one of claims 1-27 is characterized in that, Energy storage systems also include: A control module is provided for electrically controlling a plurality of battery devices in the first compartment and a plurality of battery devices in the second compartment, the control module being housed in one of the first compartment and the second compartment. The energy storage system according to claim 28 is characterized in that, The energy storage system further includes a first sub-control module, which includes a second control part. 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. 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, and the first sub-control module is located in the third sub-compartment. The energy storage system according to claim 28 or 29 is characterized in that, The energy storage system further includes a second sub-control module, which includes a fourth control part. The fourth control part is communicatively connected to the control module and the battery monitoring unit of the battery device located in the second compartment. 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 second sub-control module is housed in the fifth sub-compartment. The energy storage system according to claim 30 is 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. The energy storage system according to any one of claims 1-31 is characterized in that, The length of the outer casing is 240mm-310mm, and / or the width of the outer casing is 60mm-85mm. The energy storage system according to any one of claims 1-32 is characterized in that, The height of the outer shell is the dimension of the outer shell along the height direction, the length of the outer shell is the dimension of the outer shell along the length direction of the compartment, the width of the outer shell is the dimension of the outer shell along the width direction of the compartment, and the dimension of the compartment in the length direction is greater than the dimension of the compartment in the width direction. The energy storage system according to any one of claims 1-33 is characterized in that, The battery device has a width of 1100mm-1300mm, a length of 2000mm-2500mm, and a height of 230mm-290mm. The energy storage system according to any one of claims 1-34 is characterized in that, The height of the battery device is the dimension of the battery device along the height direction, the length of the battery device is the dimension of the battery device along the width direction of the first compartment, the width of the battery device is the dimension of the battery device along the length direction of the first compartment, and the dimension of the first compartment in its length direction is greater than the dimension of the first compartment in its width direction. The energy storage system according to any one of claims 1-35 is 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. The energy storage system according to any one of claims 1-36 is characterized in that, The standard container is a 20-foot standard container. The energy storage system according to any one of claims 1-37 is characterized in that, Each of the battery devices includes multiple battery cells, and the positive and negative terminals of each battery cell are located at the same end of the housing in the height direction of the housing.

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