Energy storage system

Abstract

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

Description

Technical Field

[0001] This application relates to the technical field of batteries, and more particularly, to an energy storage system. Background Art

[0002] With the rapid development of technology, electric energy has become an indispensable energy source in people's production and life. In order to improve the smoothness of power supply and ensure the normal operation of production and life, an energy storage system is required. The energy storage system can realize the cyclic storage and release of electric energy. By charging or discharging the battery device of the energy storage system, electric energy can be stored in the energy storage system or the electric energy stored in the energy storage system can be supplied to the electrical device. The energy storage system is 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 and other fields.

[0003] In the development of energy storage systems, in addition to improving the performance of energy storage systems, how to improve the volumetric energy density of energy storage systems is also an issue that cannot be ignored. Therefore, how to improve the volumetric energy density of energy storage systems is a technical problem that needs continuous improvement in energy storage technology. Utility Model Content

[0004] An embodiment of this application provides an energy storage system that can improve the volumetric energy density of the energy storage system.

[0005] In a first aspect, an embodiment of this application provides an energy storage system, which includes a first bin, a second bin, a control module, and a plurality of battery devices. A plurality of battery devices are accommodated in both the first bin and the second bin. The first bin and the second bin are stacked along the height direction, with the first bin located above the second bin. At least one of the first bin and the second bin has a dimension along the height direction smaller than the dimension of a standard container along the height direction. The control module is used for electrically controlling the plurality of battery devices in the first bin and the second bin, and at least one of the first bin and the second bin accommodates the control module. Wherein, each battery device includes a plurality of battery cells, each battery cell includes a housing and electrode terminals. The width and height of the housing are both smaller than the length of the housing. The plurality of battery cells are arranged along the width direction of the housing to form a battery cell assembly. Along the length direction of the housing, the electrode terminals are provided at at least one end of the housing. The length of the housing is 465 mm - 525 mm, and / or the width of the housing is 49 mm - 60 mm, and the height of the housing is 163 mm - 184 mm.

[0006] In the technical solution of the embodiment of the present application, on the one hand, since the first bin and the second bin are modularly combined in the height direction, and the components arranged in the first bin and the components arranged in the second bin are integrated into a complete system by the control module. While meeting the transportation conditions, the first bin and the components arranged therein are independently transported, and the second bin and the components arranged therein are independently transported, and a high-energy energy storage system is formed after transportation. It is beneficial to make full use of the internal space of the first bin and the internal space of the second bin while enabling the energy storage system to take into account higher energy and transportation convenience. On the other hand, multiple battery cells are arranged along the width direction of the outer shell and the electrode terminals are arranged along the length direction of the outer shell, which can make the multiple battery cells form a more compact battery cell assembly. Then, by controlling the size of the outer shell within a reasonable range, the internal space of the battery device can be fully utilized by the battery cells, thereby improving the energy density of the battery device.

[0007] With the above settings, more battery devices can be loaded in the limited loading space of the energy storage system to improve the volumetric energy density of the energy storage system.

[0008] In one or more embodiments of the first aspect, the battery device includes two battery cell assemblies arranged along the length direction of the first bin, and each battery cell assembly includes multiple battery cells arranged along the width direction of the first bin.

[0009] In the above solution, the two battery cell assemblies are arranged along the length direction of the first bin, and the multiple battery cells in each battery cell assembly are arranged along the width direction of the first bin. Such a setting can reduce the size of the battery device in the height direction, so that the first bin and the second bin can accommodate more battery devices in the height direction, thereby improving the volumetric energy density of the energy storage system.

[0010] In one or more embodiments of the first aspect, the electrode terminals of the battery cells in one battery cell assembly are arranged back to back with the electrode terminals of the battery cells in the other battery cell assembly.

[0011] In the above solution, since the electrode terminals of the battery cells in one battery cell assembly are arranged back to back with the electrode terminals of the battery cells in the other battery cell assembly, the risk of interference in the assembly of the battery cells in different battery cell assemblies can be reduced during the assembly process, and it is easier to realize the electrical connection of different battery cells in one battery cell assembly in a limited space.

[0012] In one or more embodiments of the first aspect, the electrode terminals include a positive terminal and a negative terminal, and the positive terminal and the negative terminal are arranged at the same end of the outer shell in the length direction of the outer shell.

[0013] In the above solution, the positive terminal and the negative terminal can share part of the space, which is beneficial to further improve the energy density of the battery device, and thus further improve the energy density of the energy storage system.

[0014] In one or more embodiments of the first aspect, the battery cell further includes a pressure relief mechanism, which is arranged on the outer shell. In the length direction of the outer shell, the pressure relief mechanism and the electrode terminal are respectively located at opposite ends of the outer shell.

[0015] In the above solution, the pressure relief mechanism and the electrode terminal are respectively located at opposite ends of the outer shell, which can reduce the risk of fire caused by the short circuit of the positive terminal and the negative terminal by the emissions when the battery cell is out of thermal control.

[0016] In one or more embodiments of the first aspect, two battery cell assemblies are connected in series, and each battery cell assembly includes 33 - 36 battery cells, 33 - 36 battery cells.

[0017] In the above solution, the battery device can have a relatively large voltage, which is beneficial to improving the charge and discharge efficiency of the energy storage system.

[0018] In one or more embodiments of the first aspect, each battery cell assembly includes 34 battery cells, or each battery cell assembly includes 35 battery cells.

[0019] In the above solution, when the battery cell assembly has 34 battery cells connected in series, the battery device includes 68 battery cells connected in series. When the battery cell assembly has 35 battery cells connected in series, the battery device includes 70 battery cells connected in series. The above battery device has a relatively large voltage, and the energy storage system including the above battery device has a relatively high charge and discharge efficiency.

[0020] In one or more embodiments of the first aspect, the length of the outer shell is the dimension of the outer shell along the length direction of the first bin, the width of the outer shell is the dimension of the outer shell along the width direction of the first bin, the height of the outer shell is the dimension of the outer shell along the height direction. The dimension of the first bin in the length direction is greater than the dimension of the first bin in the width direction. A plurality of battery cells are arranged along the width direction of the first bin to form a battery cell assembly, and the electrode terminal is arranged at at least one end of the outer shell along the length direction of the first bin.

[0021] In the above solution, the electrode terminals are arranged at at least one end of the outer casing along the length direction of the first compartment, which can significantly reduce the space occupied by the electrode terminals in the height and width directions of the first compartment and the space occupied by the second compartment in the height and width directions, and can significantly reduce the size of the battery cell in the height direction and the width direction of the first compartment. Furthermore, the size of the battery device including multiple battery cells in the height direction and the width direction of the first compartment can be reduced. More battery devices can be loaded in the limited loading space of the energy storage system to improve the volume energy density of the energy storage system.

[0022] In one or more embodiments of the first aspect, the number of battery devices in the first compartment is equal to the number of battery devices in the second compartment.

[0023] In the above solution, the number of battery devices in the first compartment is equal to the number of battery devices in the second compartment, which can improve the compatibility between the first compartment and the second compartment.

[0024] In one or more embodiments of the first aspect, the number of battery devices in the first compartment is 36, and / or the number of battery devices in the second compartment is 36.

[0025] In the above solution, there are 36 battery devices in the first compartment, and / or there are 36 battery devices in the second compartment, which can enable the energy storage system to have a relatively high energy.

[0026] In one or more embodiments of the first aspect, the battery devices in the first compartment are arranged in 9 rows and 4 columns. The multiple battery devices in each row are arranged along the length direction of the first compartment, and the multiple battery devices in each column are arranged along the height direction; and / or the battery devices in the second compartment are arranged in 9 rows and 4 columns. The multiple battery devices in each row are arranged along the length direction of the first compartment, and the multiple battery devices in each column are arranged along the height direction.

[0027] In the above solution, there are 9 rows of battery devices arranged along the height direction in the first compartment and / or the second compartment, 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 relatively large energy.

[0028] In one or more embodiments of the first aspect, the size of the first compartment along the height direction and the size of the second compartment along the height direction are both smaller than the size of the standard container along the height direction.

[0029] In the above solution, the size of the first compartment along the height direction and the size of the second compartment along the height direction are both smaller than the size of the standard container along the height direction. Compared with the standard container, under the condition of the same energy, the first compartment and the second compartment can have a smaller volume, so that the first compartment and the second compartment can have a relatively large volume energy density after accommodating the battery devices.

[0030] In one or more embodiments of the first aspect, the dimension of the first bin in the height direction and the dimension of the second bin in the height direction are both greater than half of the dimension of a standard container in the height direction.

[0031] In the above solution, the dimension of the first bin in the height direction and the dimension of the second bin in the height direction are both greater than half of the dimension of a standard container in the height direction, which enables the first bin and the second bin to have a relatively small volume while accommodating a relatively large number of battery devices.

[0032] In one or more embodiments of the first aspect, the battery devices in the first bin are arranged in 12 rows and 3 columns. The multiple battery devices in each row are arranged along the length direction of the first bin, and the multiple battery devices in each column are arranged along the height direction; and / or, the battery devices in the second bin are arranged in 9 rows and 4 columns. The multiple battery devices in each row are arranged along the length direction of the first bin, and the multiple battery devices in each column are arranged along the height direction.

[0033] In the above solution, the first bin is arranged with 12 rows of battery devices in the height direction and 4 columns of battery devices in the length direction of the first bin; and / or, the second bin is arranged with 9 rows of battery devices in the height direction and 4 columns of battery devices in the length direction of the first bin. Under the condition of meeting the transportation of the energy storage system, the energy storage system can have a relatively large energy.

[0034] In one or more embodiments of the first aspect, the dimension of the first bin in the height direction is greater than the dimension of a standard container in the height direction; the dimension of the second bin in the height direction is less than the dimension of a standard container in the height direction.

[0035] In the above solution, the battery devices and other components of the energy storage system can be arranged specifically according to the dimensions of the first bin and the second bin in the height direction, making full use of the internal space of the first bin and the second bin, and making the energy storage system more compact.

[0036] In one or more embodiments of the first aspect, the number of battery devices in the first bin is 30, and / or, the number of battery devices in the second bin is 30.

[0037] In the above solution, there are 30 battery devices in the first bin, and / or, there are 30 battery devices in the second bin, which enables the energy storage system to have a relatively high energy.

[0038] In one or more embodiments of the first aspect, the battery devices in the first bin are arranged in 10 rows and 3 columns. The multiple battery devices in each row are arranged along the length direction of the first bin, and the multiple battery devices in each column are arranged along the height direction; and / or, the battery devices in the second bin are arranged in 10 rows and 3 columns. The multiple battery devices in each row are arranged along the length direction of the first bin, and the multiple battery devices in each column are arranged along the height direction.

[0039] In the above solution, along the height direction, there are 10 rows of battery devices arranged in the first bin and / or the second bin, and along the length direction of the first bin, there are 3 columns of battery devices arranged. Under the condition of meeting the transportation requirements of the energy storage system, the energy storage system can have a relatively large energy.

[0040] In one or more embodiments of the first aspect, the energy storage system further includes a current conversion device. The current conversion device includes a first current converter. The multiple battery devices located in the first bin include multiple first battery clusters, and the first current converter is electrically connected to at least one first battery cluster;

[0041] and / or, the energy storage system further includes a current conversion device. The current conversion device includes a second current converter. The multiple battery devices located in the second bin include multiple second battery clusters, and the second current converter is electrically connected to at least one second battery cluster.

[0042] In the above solution, by electrically connecting the first battery clusters through the first current converter, the first current converter can realize the input or output of the electric energy of the multiple battery devices in the first battery clusters, so that the multiple first battery clusters can be respectively connected to electrical equipment or the power grid, making the multiple battery devices located in the first bin have a higher integration degree and a more compact arrangement, thereby improving the volume energy density of the energy storage system. By electrically connecting the second battery clusters through the second current converter, the second current converter can realize the input or output of the electric energy of the multiple battery devices in the second battery clusters, so that the multiple second battery clusters can be respectively connected to electrical equipment or the power grid, making the multiple battery devices located in the second bin have a higher integration degree and a more compact arrangement, thereby improving the volume energy density of the energy storage system.

[0043] 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 includes a first control part and a second control part. The first current converter is electrically connected to at least one first battery cluster through the first control part, and the second control part is communicatively connected to the control module and the battery monitoring unit of the battery devices located in the first bin;

[0044] and / or, the energy storage system further includes a second sub-control module. The second sub-control module includes a third control part and a fourth control part. The second current converter is electrically connected to at least one second battery cluster through the third control part, and the fourth control part is communicatively connected to the control module and the battery monitoring unit of the battery devices located in the second bin.

[0045] In the above solution, the first converter is electrically connected to at least one first battery cluster through the first control part, and the second control part is communicatively connected to the control module. While realizing the input or output of electrical energy of the battery device located in the first cabin, the accuracy of data acquisition of the battery device can be improved; the second converter is electrically connected to at least one second battery cluster through the third control part, and the fourth control part is communicatively connected to the control module. While realizing the input or output of electrical energy of the battery device located in the second cabin, the accuracy of data acquisition of the battery device can be improved.

[0046] In one or more embodiments of the first aspect, the first converter and the first control part are integrated; and / or, the second converter and the third control part are integrated.

[0047] In the above solution, the first converter and the first control part are integrated; and / or, the second converter and the third control part are integrated. The assembly process of the energy storage system can be simplified, and the assembly efficiency of the energy storage system can be improved.

[0048] In one or more embodiments of the first aspect, one first converter is correspondingly arranged for each first battery cluster, and one second converter is correspondingly arranged for each second battery cluster.

[0049] In the above solution, the first battery clusters and the first converters are in one-to-one correspondence, reducing the power requirement of the first converters and improving the stability of the input or output of electrical energy of the first battery clusters. The second battery clusters and the second converters are in one-to-one correspondence, reducing the power requirement of the second converters and improving the stability of the input or output of electrical energy of the second battery clusters.

[0050] In one or more embodiments of the first aspect, each first battery cluster includes six battery devices connected in series; and / or, each second battery cluster includes six battery devices connected in series.

[0051] In the above solution, each first current conversion device can realize the input or output of electrical energy of six battery devices. Multiple first converters are respectively electrically connected to multiple first battery clusters, reducing the risk of interference between the multiple first battery clusters and improving the service performance of the first cabin. Each second current conversion device can realize the input or output of electrical energy of six battery devices. Multiple second converters are respectively electrically connected to multiple second battery clusters, reducing the risk of interference between the multiple second battery clusters and improving the service performance of the second cabin.

[0052] In one or more embodiments of the first aspect, the maximum operating voltage of the first converter is 1500V; and / or, the maximum operating voltage of the second converter is 1500V.

[0053] In the above solution, a first battery cluster is electrically connected to a first converter with a maximum operating voltage of 1500V, enabling a first battery cluster to be adapted to an operating voltage of 1500V. A second battery cluster is electrically connected to a second converter with a maximum operating voltage of 1500V, enabling a second battery cluster to be adapted to an operating voltage of 1500V, improving the performance of the energy storage system.

[0054] In one or more embodiments of the first aspect, the energy storage system further includes a thermal management module for thermally managing a plurality of battery devices in the first housing and the second housing; at least a part of the thermal management module is accommodated in the first housing.

[0055] In the above solution, by accommodating at least a part of the thermal management module in the first housing, at least a part of the thermal management module can be transported synchronously with the first housing, and some pipelines can be pre-connected before transportation, improving the installation convenience of the energy storage system.

[0056] In one or more embodiments of the first aspect, the dimension of the first housing in the height direction is greater than the dimension of the second housing in the height direction.

[0057] In the above solution, since at least a part of the thermal management module is accommodated in the first housing and the dimension of the first housing in the height direction is greater than the dimension of the second housing in the height direction, the thermal management module can utilize the space in the height direction of the first housing without overly occupying the space in the width and length directions of the first housing, which is beneficial to improving the area energy density of the energy storage system.

[0058] In one or more embodiments of the first aspect, the entire thermal management module is accommodated in the first housing.

[0059] In the above solution, by accommodating the entire thermal management module in the first housing, the thermal management module can be transported synchronously with the first housing, and most pipelines can be pre-connected before transportation, improving the installation convenience of the energy storage system.

[0060] In one or more embodiments of the first aspect, the first housing includes a first sub-housing and a second sub-housing. The first housing has a first isolation layer that separates the first sub-housing and the second sub-housing. The first sub-housing is located above the second sub-housing. The entire thermal management module is accommodated in the first sub-housing, and the battery devices located in the first housing are accommodated in the second sub-housing.

[0061] In the above solution, the assembly of the thermal management module and the battery devices can be carried out with the first isolation layer as the assembly reference. The thermal management module is located above the battery devices, and the thermal management module can block sunlight for the battery devices, reducing the sunlight irradiation on the battery devices and improving the temperature uniformity of each battery device.

[0062] In one or more embodiments of the first aspect, the energy storage system further includes a current conversion device, the current conversion device includes a first current converter disposed in a first bin, and the first current converter is electrically connected to a battery device located in the first bin;

[0063] The first bin further includes a third sub-bin, the first isolation layer further separates the first sub-bin and the third sub-bin, the first sub-bin is located above the third sub-bin, the first bin has a second isolation layer, the second isolation layer separates the second sub-bin and the third sub-bin, the second sub-bin and the third sub-bin are arranged along the length direction of the first bin, and the first current converter is accommodated in the third sub-bin.

[0064] In the above solution, by accommodating the first current converter in the third sub-bin, the first current converter and the battery device located in the second sub-bin can be arranged along the length direction, which is convenient for the installation and independent maintenance of the first current converter and the battery device, and is beneficial to improving the installation and maintenance efficiency of the energy storage system.

[0065] In one or more embodiments of the first aspect, the height of the first bin is 2700 mm - 2900 mm, and the height of the second bin is 2300 mm - 2500 mm.

[0066] In the above solution, by setting the first bin to have a relatively large height, the thermal management module can utilize the space in the height direction of the first bin without occupying the space in the width and length directions of the first bin, which is beneficial to improving the area energy density of the energy storage system; in addition, by setting the height of the second bin to be relatively small, while enabling the second bin to have a large amount of energy, the volume of the second bin is reduced, which is beneficial to improving the volume energy density of the second bin.

[0067] In one or more embodiments of the first aspect, the first bin includes a first sub-bin and a second sub-bin, the first bin has a first isolation layer, the first isolation layer separates the first sub-bin and the second sub-bin, the second sub-bin is located below the first sub-bin, and the battery device located in the first bin is accommodated in the second sub-bin;

[0068] The thermal management module includes a fan and a condenser, the fan is used to dissipate heat for the condenser, the fan and the condenser are located in the first sub-bin, and ventilation openings are provided at the top and side of the first sub-bin.

[0069] In the above solution, the fan and the condenser are relatively large in size. By arranging them in the first sub-bin in the height direction, while loading as many battery devices as possible, the space in the height direction of the first bin is fully utilized to increase the energy of the first bin. In addition, the ventilation openings provided at the top and side of the first sub-bin can not only satisfy the comprehensive heat exchange of the battery devices in the first bin, but also improve the heat dissipation effect of the fan on the condenser, enabling the battery devices to work at a suitable temperature, which is beneficial to enabling the energy storage system to have a high charge and discharge efficiency.

[0070] In one or more embodiments of the first aspect, the first storage body further includes a third sub-storage body. The first isolation layer further separates the first sub-storage body and the third sub-storage body. The first sub-storage body is located above the third sub-storage body. The first storage body has a second isolation layer that separates the second sub-storage body and the third sub-storage body. The second sub-storage body and the third sub-storage body are arranged along the length direction of the first storage body. The battery device includes a thermal management component. The thermal management module further includes a pumping device, a heat exchanger, a compressor, and a throttling device. The pumping device, the heat exchanger, and the thermal management component located in the first storage body are connected to form a first coolant circulation loop. The pumping device, the heat exchanger, and the thermal management component located in the second storage body are connected to form a second coolant circulation loop. The compressor, the condenser, the throttling device, and the heat exchanger are connected to form a refrigerant circulation loop. At least one of the heat exchanger, the pumping device, the compressor, and the throttling device is accommodated in the third sub-storage body.

[0071] In the above solution, accommodating at least one of the heat exchanger, the pumping device, the compressor, and the throttling device, which are relatively small in volume, in the third sub-storage body can make full use of the internal space of the first storage body on the premise of not occupying too much space for loading the battery device as much as possible, making the structure of the energy storage system more compact and improving the volume energy density of the energy storage system.

[0072] In one or more embodiments of the first aspect, the energy storage system further includes a current conversion device. The current conversion device includes a first current converter disposed in the first storage body. The first current converter is electrically connected to a plurality of battery devices located in the first storage body. The plurality of battery devices and the first current converter are accommodated in the second sub-storage body, and the first current converter is located below the plurality of battery devices.

[0073] In the above solution, the first current converter is disposed at a relatively low position, which is convenient for the installation and maintenance of the first current converter.

[0074] In one or more embodiments of the first aspect, the height of the first storage body is 2600 mm - 2800 mm, and the height of the second storage body is 2300 mm - 2500 mm.

[0075] In the above solution, setting the height of the first storage body relatively large can enable part of the thermal management module to utilize the space in the height direction of the first storage body without occupying too much space in the width and length directions of the first storage body, which is beneficial to improving the area energy density of the energy storage system. In addition, setting the height of the second storage body relatively small can reduce the volume of the second storage body while enabling the second storage body to have a large amount of energy, which is beneficial to improving the volume energy density of the second storage body.

[0076] In one or more embodiments of the first aspect, the first storage body includes a second sub-storage body and a third sub-storage body. The first storage body has a second isolation layer that separates the second sub-storage body and the third sub-storage body. The second sub-storage body and the third sub-storage body are arranged along the length direction of the first storage body. A plurality of battery devices located within the first storage body are accommodated in the second sub-storage body, and the thermal management module is accommodated in the third sub-storage body.

[0077] In the above solution, the thermal management module and the battery devices in the second sub-storage body are arranged along the length direction, which can reduce the interference of the thermal management module on the battery devices during operation and enable the battery devices to have high reliability. At the same time, the thermal management module is arranged on one side of the first storage body in the length direction, making it easier for maintenance personnel to access the thermal management module, thereby improving the maintenance convenience of the thermal management module.

[0078] In one or more embodiments of the first aspect, the energy storage system further includes a current conversion device. The current conversion device includes a first current converter disposed within the first storage body. The first current converter is electrically connected to a plurality of battery devices located within the first storage body; the first current converter is accommodated in the second sub-storage body and is located below the plurality of battery devices.

[0079] In the above solution, while the thermal management module is accommodated in the third sub-storage body, the first current converter is accommodated in the second sub-storage body and is disposed below the plurality of battery devices, which can reduce the interference of the thermal management module on the first current converter and enable the first current converter to have high operating stability. At the same time, it can also improve the maintenance convenience of the first current converter.

[0080] In one or more embodiments of the first aspect, the energy storage system further includes a third storage body and a thermal management module. The thermal management module is used to perform thermal management on a plurality of battery devices in the first storage body and the second storage body. The third storage body and the second storage body are arranged along a direction intersecting with the height direction; wherein, the thermal management module is accommodated in the third storage body.

[0081] In the above solution, since the third storage body provided with the thermal management module and the second storage body are arranged along a direction intersecting with the height direction, the interference of the thermal management module on the battery devices can be reduced, and the operating stability of the battery devices can be improved. And the maintenance of both the battery devices and the thermal management module is relatively convenient.

[0082] In one or more embodiments of the first aspect, the energy storage system further includes a power distribution module, and the power distribution module is accommodated in the third storage body.

[0083] In the above solution, since the power distribution module requires a relatively high frequency of manual intervention or maintenance, accommodating the power distribution module in the third storage body can significantly improve the installation and maintenance convenience of the energy storage system.

[0084] In one or more embodiments of the first aspect, the first bin includes a second sub-bin and a third sub-bin. The first bin has a second isolation layer that separates the second sub-bin and the third sub-bin. The second sub-bin and the third sub-bin are arranged along the length direction of the first bin. The battery device located in the first bin is accommodated in the second sub-bin. The energy storage system further includes a current conversion device that is electrically connected to the battery device. The current conversion device includes a first current converter disposed in the third sub-bin, and the first current converter is electrically connected to the battery device located in the first bin.

[0085] In the above solution, by arranging the first current converter on one side of the first bin along its length direction, it is convenient for the maintenance of the first current converter.

[0086] In one or more embodiments of the first aspect, the control module is accommodated in the second bin.

[0087] In the above solution, the height of the second bin is relatively low. By accommodating at least part of the control module in the second bin, the installation and maintenance convenience of the control module can be improved.

[0088] In one or more embodiments of the first aspect, the second bin includes a fourth sub-bin and a fifth sub-bin. The second bin has a third isolation layer that separates the fourth sub-bin and the fifth sub-bin. The fourth sub-bin and the fifth sub-bin are arranged along the length direction of the first bin. The battery device located in the second bin is accommodated in the fourth sub-bin, and the control module is accommodated in the fifth sub-bin.

[0089] In the above solution, by arranging the control module on one side of the second bin along the length direction of the first bin, the installation and maintenance convenience of the control module can be further improved.

[0090] In one or more embodiments of the first aspect, the energy storage system includes a power distribution module and a fire control module. The control module and the fire control module are electrically connected to the power distribution module. The power distribution module and the fire control module are both accommodated in the fifth sub-bin.

[0091] In the above solution, by arranging the power distribution module and the fire control module in the fifth sub-bin, the heights of the power distribution module and the fire control module are relatively low, which is convenient for the maintenance and repair of the power distribution module and the fire control module.

[0092] In one or more embodiments of the first aspect, the energy storage system further includes a current conversion device that is electrically connected to the battery device. The current conversion device includes a second current converter disposed in the second bin, and the second current converter is electrically connected to the battery device located in the second bin. The second current converter is accommodated in the fourth sub-bin.

[0093] In the above solution, the fourth sub - warehouse accommodates the second converter and the battery device, which can reduce the space waste of the fourth sub - warehouse and improve the space utilization rate of the fourth sub - warehouse. In addition, arranging the second converter and the battery device in the same sub - warehouse facilitates the connection of their circuits and is beneficial to improving the installation and maintenance convenience of the energy storage system.

[0094] In one or more embodiments of the first aspect, the energy storage system further includes a conversion device, and the conversion device is electrically connected to the battery device. The conversion device includes a second converter disposed in the second cavity, and the second converter is electrically connected to the battery device located in the second cavity, and the second converter is accommodated in the fifth sub - warehouse.

[0095] In the above solution, the second converter is accommodated in the fifth sub - warehouse, which is convenient for the maintenance of the second converter.

[0096] In one or more embodiments of the first aspect, the dimensions of the first cavity and the second cavity along their length directions are both consistent with the dimensions of the length direction of a standard container, and the dimensions of the first cavity and the second cavity along their width directions are both consistent with the dimensions of the width direction of a standard container.

[0097] In the above solution, the floor areas of the first cavity and the second cavity are the same as that of a standard container, which can reduce the transportation difficulty of the first cavity and the second cavity and reduce the transportation cost.

[0098] In one or more embodiments of the first aspect, the total energy of the energy storage system is 9 MWh - 11 MWh.

[0099] In the above solution, the energy storage system can have a relatively high energy.

[0100] In one or more embodiments of the first aspect, the total weight of the first cavity and the components disposed in the first cavity is less than or equal to 36 tons; and / or, the total weight of the second cavity and the components disposed in the second cavity is less than or equal to 36 tons.

[0101] In the above solution, it can make the energy storage system adapt to most regular sea transports and improve the transportation convenience of the energy storage system.

[0102] In one or more embodiments of the first aspect, the battery cell is a laminated battery cell.

[0103] In the above solution, the laminated battery cell has a relatively high energy density. Setting the battery cells of the energy storage system as laminated battery cells can enable the energy storage system to have a relatively large energy within a limited space.

[0104] In one or more embodiments of the first aspect, the sum of the dimensions of the first cavity along the height direction and the dimensions of the second cavity along the height direction is greater than or equal to the dimensions of a standard container along the height direction.

[0105] In the above solution, the first bin and the second bin can have more space in the height direction, which is beneficial to arranging more battery devices along the height direction in the first bin and the second bin, and improving the volumetric energy density of the energy storage system.

[0106] In one or more embodiments of the first aspect, the standard container is a 20-foot standard container.

[0107] In the above solution, the 20-foot standard container can meet the requirements of most regular sea shipments. The first bin and the second bin are designed with reference to the 20-foot standard container, which is beneficial to making the energy storage system have better transportation convenience.

[0108] The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. In order to make other purposes, features, and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0109] Figure 1 Structural schematic diagram of an energy storage system provided by some embodiments of the present application;

[0110] Figure 2 Structural schematic diagram of a battery device provided by some embodiments of the present application;

[0111] Figure 3 Structural schematic diagram of a battery cell provided by some embodiments of the present application;

[0112] Figure 4 Structural schematic diagram of a battery device provided by some other embodiments of the present application;

[0113] Figure 5 Structural schematic diagram of an energy storage system provided by some other embodiments of the present application;

[0114] Figure 6 Structural schematic diagram of an energy storage system provided by some further embodiments of the present application;

[0115] Figure 7 Structural schematic diagram of an energy storage system provided by some other embodiments of the present application;

[0116] Figure 8 Block diagram of the control module, the first sub-control module, the second sub-control module, and the battery device in the energy storage system provided by some embodiments of the present application;

[0117] Figure 9 Block diagram of the power conversion device, the first sub-control module, the second sub-control module, and the battery device in the energy storage system provided by some embodiments of the present application;

[0118] Figure 10 Schematic diagram of the energy storage system provided for some embodiments of the present application (the thermal management module is housed in the first sub-compartment);

[0119] Figure 11 Schematic diagram of the energy storage system provided for some embodiments of the present application (the thermal management module is housed in the first sub-compartment and the third sub-compartment);

[0120] Figure 12 Schematic diagram of the thermal management module provided for some embodiments of the present application;

[0121] Figure 13 Schematic diagram of the energy storage system provided for some embodiments of the present application (the thermal management module is housed in the third sub-compartment);

[0122] Figure 14 Schematic diagram of the energy storage system provided for some embodiments of the present application (the control module is housed in the fifth sub-compartment);

[0123] Figure 15 Assembly drawing of the second compartment body and the control module provided for some embodiments of the present application;

[0124] Figure 16 Assembly drawing of the second compartment body and the control module provided for some other embodiments of the present application;

[0125] Figure 17 Assembly drawing of the first compartment body, the second compartment body and the third compartment body provided for some embodiments of the present application.

[0126] Icons: 10 - Battery device; 1a - Battery cell assembly; 1 - Battery cell; 11 - Housing; 111 - First wall portion; 112 - Second wall portion; 12 - Electrode terminal; 2 - Box body; 21 - First box body; 22 - Second box body; 3 - Thermal management component; 4 - Pressure relief mechanism; 20 - First storage body; 201 - First sub - storage; 202 - Second sub - storage; 203 - Third sub - storage; 204 - First isolation layer; 205 - Second isolation layer; 30 - Second storage body; 301 - Fourth sub - storage; 302 - Fifth sub - storage; 303 - Third isolation layer; 40 - Control module; 401 - Power distribution module; 402 - Fire control module; 403 - First sub - control module; 4031 - First control part; 4032 - Second control part; 404 - Second sub - control module; 4041 - Third control part; 4042 - Fourth control part; 50 - Thermal management module; 501 - Condenser; 502 - Pumping device; 503 - Heat exchanger; 504 - Compressor; 505 - Throttling device; 506 - Fan; 507 - First cooling circulation loop; 508 - Second cooling circulation loop; 509 - Refrigerant circulation loop; 60 - Converter device; 601 - First converter; 602 - Second converter; 80 - Third storage body; 100 - Energy storage system; X - Length direction of the first storage body; Y - Width direction of the first storage body; Z - Height direction. Detailed implementation manners

[0127] Hereinafter, embodiments of the technical solutions of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0128] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above - mentioned accompanying drawing descriptions are intended to cover non - exclusive inclusion.

[0129] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order or primary - secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means more than two unless otherwise specifically defined.

[0130] References to "embodiments" in this specification mean that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment each time, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0131] In the description of the embodiments of the present application, the term "plurality" means two or more (including two). Similarly, "multiple groups" means two or more groups (including two groups), and "multiple sheets" means two or more sheets (including two sheets).

[0132] In the present application, the battery cell may include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell, a magnesium-ion battery cell, etc., and the embodiments of the present application do not limit this. The battery cell may be in a cylindrical shape, a flat shape, a cuboid shape, or other shapes, and the embodiments of the present application do not limit this either.

[0133] The battery mentioned in the embodiments of the present application may include one or more battery cells to provide a single physical module with higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, parallel, or in a hybrid connection through a busbar component.

[0134] In some embodiments, the battery device may be a battery module; when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0135] In some embodiments, the battery device may be a battery pack, and the battery pack includes a box body and battery cells, and the battery cells or battery modules are accommodated in the box body.

[0136] In some embodiments, the energy storage system includes an energy storage container, an energy storage cabinet, etc.

[0137] The battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and extracted back and forth between the positive electrode and the negative electrode. The separator is disposed between the positive electrode and the negative electrode, which can prevent the short circuit between the positive and negative electrodes and allow the active ions to pass through at the same time.

[0138] Optionally, the electrode assembly is a laminated structure.

[0139] Optionally, the shape of the electrode assembly may be cylindrical, flat, or multi-prismatic, etc.

[0140] In some embodiments, the energy storage system may include a battery device and a storage body, and the battery device is accommodated in the storage body. The battery device includes multiple battery cells.

[0141] In some embodiments, the energy storage system may further include a current conversion device, which is electrically connected to the battery device to convert the DC electrical energy of the battery device into AC electrical energy for facilitating the power output of the battery device, or to convert the AC electrical energy of an external circuit into DC electrical energy for facilitating the energy storage of the battery device.

[0142] In some embodiments, the energy storage system may further include a control module, which is used for electrically controlling the battery device.

[0143] In some embodiments, the energy storage system may further include a thermal management module, which is used for managing the temperature of the battery device.

[0144] The energy storage system can be an energy storage power station, a wind power generation system, a solar power generation system, a mobile power system or a temporary power supply system, etc. The energy storage power station can store electrical energy during the low electricity consumption period and supply electrical energy to relevant users or electrical equipment during the high electricity consumption period. After the wind energy collected by the wind turbine generator of the wind power generation system is converted into electrical energy, it is stored by the energy storage system. The solar power generation system can convert solar energy into electrical energy, which is then stored by the energy storage system and supplied to users in a timely manner. The mobile power system can supply power to relevant electrical equipment in places where the power grid power supply system cannot reach, such as remote mountainous areas, remote wild areas, etc. The temporary power supply system can supply power to users in case of insufficient power supply.

[0145] In the energy storage system, if as many battery devices as possible are arranged in a standard container, the standard container will be overweight. To meet the transportation rules, the internal space of the standard container cannot be fully utilized, and the volume energy density of the standard container is relatively low. In addition, in some energy storage systems, the setting direction of the pole columns of the battery cells in the battery device is the same as the arrangement direction of multiple battery cells in the battery cell assembly, which will make the overall size of the battery cell assembly larger, and then lead to a relatively large overall size of the battery device. With a limited number of battery devices arranged in the limited space of the energy storage system, the volume energy density of the energy storage system is relatively low.

[0146] In view of this, the present application provides an energy storage system, which includes a first bin, a second bin, a control module, and a plurality of battery devices. A plurality of battery devices are accommodated in both the first bin and the second bin. The first bin and the second bin are stacked in the height direction, with the first bin located above the second bin. At least one of the first bin and the second bin has a dimension in the height direction smaller than the dimension of a standard container in the height direction. The control module is used to perform electrical control on the plurality of battery devices in the first bin and the second bin. At least one of the first bin and the second bin accommodates the control module. Each battery device includes a plurality of battery cells, and each battery cell includes a housing and electrode terminals. The width and height of the housing are both smaller than the length of the housing. The plurality of battery cells are arranged in the width direction of the housing to form a battery cell assembly. Along the length direction of the housing, the electrode terminals are provided at at least one end of the housing. The length of the housing is 465 mm - 525 mm, and / or the width of the housing is 49 mm - 60 mm, and the height of the housing is 163 mm - 184 mm. On the one hand, since the first bin and the second bin are modularly combined in the height direction, and the components arranged in the first bin and the components arranged in the second bin are integrated into a complete system through the control module. While meeting the transportation conditions, the first bin and the components arranged therein are independently transported, and the second bin and the components arranged therein are independently transported, and a high-energy energy storage system is formed after transportation. It is beneficial to make full use of the internal space of the first bin and the second bin while enabling the energy storage system to take into account both high energy and transportation convenience. On the other hand, the plurality of battery cells are arranged in the width direction of the housing and the electrode terminals are provided in the length direction of the housing, which can make the plurality of battery cells form a more compact battery cell assembly. By controlling the size of the housing within a reasonable range, the internal space of the battery device can be fully utilized by the battery cells, thereby improving the energy density of the battery device.

[0147] With the above settings, more battery devices can be loaded in the limited loading space of the energy storage system to improve the volumetric energy density of the energy storage system.

[0148] The energy storage system will be described below with reference to the accompanying drawings.

[0149] In some embodiments of the present application, please refer to Figures 1-7, an embodiment of the present application provides an energy storage system 100, which includes a first bin 20, a second bin 30, a control module 40, and a plurality of battery devices 10. A plurality of battery devices 10 are accommodated in both the first bin 20 and the second bin 30. The first bin 20 and the second bin 30 are stacked along the height direction Z, the first bin 20 is located above the second bin 30, and the dimension of at least one of the first bin 20 and the second bin 30 along the height direction Z is smaller than the dimension of a standard container along the height direction Z. The control module 40 is configured to perform electrical control on the plurality of battery devices 10 in the first bin 20 and the second bin 30, and at least one of the first bin 20 and the second bin 30 accommodates the control module 40. Wherein, each battery device 10 includes a plurality of battery cells 1, and each battery cell 1 includes a housing 11 and electrode terminals 12. Both the width and the height of the housing 11 are smaller than the length of the housing 11. Along the length direction of the housing 11, the electrode terminals 12 are disposed at at least one end of the housing 11. The length of the housing 11 is 465 mm - 525 mm, the width of the housing 11 is 49 mm - 60 mm, and the height of the housing 11 is 163 mm - 184 mm.

[0150] In some embodiments, the battery device 10 may include a box body 2 and battery cells 1, and the box body 2 is used to accommodate the battery cells 1. Wherein, a sealed space for accommodating the battery cells 1 is formed inside the box body 2. The box body 2 may adopt various structures. In some embodiments, the box body 2 may include a first box body 21 and a second box body 22, and the first box body 21 and the second box body 22 are buckled with each other. The first box body 21 and the second box body 22 may be of various shapes, for example, a cuboid. The first box body 21 may be a hollow structure with one side open, and the second box body 22 may also be a hollow structure with one side open. The open side of the second box body 22 and the open side of the first box body 21 are buckled with each other, thus forming the box body 2 with a closed space. It may also be that the first box body 21 is a hollow structure with one side open, and the second box body 22 is a plate-like structure. The second box body 22 is buckled on the open side of the first box body 21, thus forming the box body 2 with an accommodating space.

[0151] In the battery device 10, there are a plurality of battery cells 1, and the plurality of battery cells 1 can be connected in series, in parallel, or in a hybrid connection. A hybrid connection means that there are both series and parallel connections among the plurality of battery cells 1. It may be that a plurality of battery cells 1 are first connected in series, in parallel, or in a hybrid connection to form a battery cell assembly 1a, and then a plurality of battery cell assemblies 1a are connected in series, in parallel, or in a hybrid connection to form a whole, and are accommodated in the box body 2. It may also be that all the battery cells 1 are directly connected in series, in parallel, or in a hybrid connection together, and then the whole formed by all the battery cells 1 is accommodated in the box body 2.

[0152] In some embodiments, the battery device 10 may also be a battery module. Without the housing 2, the battery module is directly disposed within the first compartment 20 and / or the second compartment 30.

[0153] There are multiple battery devices 10 accommodated in the first compartment 20. There are multiple battery devices 10 accommodated in the second compartment 30. The number of battery devices 10 in the first compartment 20 may be the same as or different from the number of battery devices 10 in the second compartment 30.

[0154] Multiple battery cells 1 that may be the battery device 10 only form one battery cell assembly 1a, and all the battery cells 1 of the battery device 10 are arranged along the width direction of the housing 11. Or multiple battery cells 1 of the battery device 10 may form multiple battery cell assemblies 1a, and the multiple battery cells 1 of each battery cell assembly 1a are arranged along the width direction of the housing 11. In the 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.

[0155] Multiple battery cells 1 are arranged along the width direction of the housing 11 to form a battery cell assembly 1a, and the electrode terminals 12 are disposed at at least one end of the housing 11, such that the electrode terminals 12 are not disposed between two adjacent housings 11 in the battery cell assembly 1a, thereby making the arrangement of the housings 11 of the battery cell assembly 1a more compact along the width direction. The electrode terminals 12 are disposed at at least one end of the housing 11 along the length direction, such that the multiple electrode terminals 12 can jointly occupy the space on one side of the multiple housings 11 of the battery cell assembly 1a along the length direction, reducing the waste of the internal space of the battery device 10.

[0156] The first compartment 20 and the second compartment 30 are stacked along the height direction Z, and the first compartment 20 is located above the second compartment 30 to enable the second compartment 30 to support the first compartment 20. The length direction X of the first compartment may be consistent with the length direction of the second compartment 30. The width direction Y of the first compartment may be consistent with the width direction of the second compartment 30. The height direction Z of the first compartment 20 and the height direction Z of the second compartment 30 can both be consistent with the height direction Z.

[0157] The dimension of at least one of the first compartment 20 and the second compartment 30 along the height direction Z is smaller than the dimension of a standard container along the height direction Z. It may be that the dimensions of both the first compartment 20 and the second compartment 30 along the height direction Z are smaller than the dimension of a standard container along the height direction Z. It may be that the dimension of one of the first compartment 20 and the second compartment 30 along the height direction Z is smaller than the dimension of a standard container along the height direction Z, and the other is greater than or equal to the dimension of a standard container along the height direction Z.

[0158] Along the length direction X of the first bin body, the dimensions of the first bin body 20 may or may not be equal to the dimensions of a standard container along its length direction; along the width direction Y of the first bin body, the dimensions of the first bin body 20 may or may not be equal to the dimensions of a standard container along its width direction; along the length direction X of the first bin body, the dimensions of the second bin body 30 may or may not be equal to the dimensions of a standard container along its width direction; along the width direction Y of the first bin body, the dimensions of the second bin body 30 may or may not be equal to the dimensions of a standard container along its width direction. The standard container may be the dimensions of a standard container during transportation, such as 20-foot, 30-foot, 40-foot or 45-foot, which meet the corresponding standards and have corresponding dimensions for their length, width and height respectively. The standard container may refer to GB / T 1413-2023 Series 1 Classification, Dimensions and Rated Mass of Containers.

[0159] 20-foot may include: the dimension in the length direction is 6058 mm, with a tolerance of 0 mm - 6 mm; the dimension in the width direction is 2438 mm, with a tolerance of 0 mm - 5 mm; and the dimension in the height direction Z is 2896 mm, 2591 mm or not greater than 2438 mm; the tolerance is 0 mm - 5 mm. Among them, less than the dimension of the standard container along the height direction Z can be understood as less than 2896 mm.

[0160] 30-foot may include: the dimension in the length direction is 9125 mm, with a tolerance of 0 mm - 10 mm; the dimension in the second direction is 2438 mm, with a tolerance of 0 mm - 5 mm; and the dimension in the height direction Z is 2896 mm, 2591 mm or not greater than 2438 mm; the tolerance is 0 mm - 5 mm. Among them, less than the dimension of the standard container along the height direction Z can be understood as less than 2896 mm.

[0161] 40-foot may include: the dimension in the length direction is 12192 mm, with a tolerance of 0 mm - 10 mm; the dimension in the width direction is 2438 mm, with a tolerance of 0 mm - 5 mm; and the dimension in the height direction Z is 2896 mm, 2591 mm or not greater than 2438 mm; the tolerance is 0 mm - 5 mm. Among them, less than the dimension of the standard container along the height direction Z can be understood as less than 2896 mm.

[0162] 45-foot may include: the dimension in the length direction is 13716 mm, with a tolerance of 0 mm - 10 mm; the dimension in the width direction is 2438 mm, with a tolerance of 0 mm - 5 mm; and the dimension in the height direction Z is 2591 mm or 2896 mm; the tolerance is 0 mm - 5 mm. Among them, less than the dimension of the standard container along the height direction Z can be understood as less than 2896 mm.

[0163] Optionally, for containers of various sizes, dimensions within ±5% of their sizes can be considered as dimensions within the tolerance range.

[0164] 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 housing 20, and the second battery monitoring circuit is used to collect second data of the battery device 10 located in the second housing 30; the control module 40 is used to determine the operating state data of the energy storage system 100. The operating state data of the energy storage system 100 is associated with the first data and the second data.

[0165] In some embodiments, the control module 40 can be a module in the energy storage system 100 for monitoring and managing the battery device 10, and it can serve as the management unit of the battery device 10 in the energy storage system 100. The control module 40 can be communicatively connected to the first battery monitoring circuit and the second battery monitoring circuit, and it can receive the information of the first battery monitoring circuit and the second battery monitoring circuit and process it to determine the operating state data of the energy storage system 100 by using the information of the first battery monitoring circuit and the second battery monitoring circuit. The control module 40 can monitor information such as the current, voltage, power, state of charge or temperature of the battery device 10 to determine the operating state data of the energy storage system 100. As an example, the control module 40 includes modules such as an insulation monitoring module IMM (Insulation Monitoring Module, abbreviated as IMM), a main battery management unit MBMU (Master Battery Management Unit, MBMU), an Ethernet ETH (EtherNet, ETH), and an optical fiber conversion module.

[0166] At least one of the first housing 20 and the second housing 30 houses the control module 40. It can be that all of the control module 40 is housed in the first housing 20; it can also be that all of the control module 40 is housed in the second housing 30, or the control module 40 includes multiple control units, a part of the multiple control units is housed in the first housing 20, and another part is housed in the second housing 30, and the multiple control units jointly perform electrical control on the battery device 10 in the first housing 20 and the second housing 30. The above-mentioned modules such as the insulation monitoring module, the main battery management unit, the Ethernet ETH, and the optical fiber conversion module can all be called control units.

[0167] The control module 40 being used to perform electrical control on the multiple battery devices 10 in the first housing 20 and the second housing 30 means that the same control module 40 can simultaneously perform electrical control on all the battery devices 10. The electrical control here refers to low-voltage control.

[0168] In some embodiments, the battery cell 1 includes a housing 11 and electrode terminals 12. The width and height of the housing 11 are both smaller than the length of the housing 11, such that the housing 11 is in the shape of a cuboid. Along the length direction of the housing 11, the housing 11 has two first wall portions 111 disposed opposite to each other. The electrode terminals 12 are two with opposite polarities. It is possible that both of the two electrode terminals 12 are disposed on the same first wall portion 111; it is also possible that the two electrode terminals 12 are respectively disposed on the two first wall portions 111. Among them, the battery cell 1 may be a blade battery cell.

[0169] The length L of the housing 11 may be a point value of any one of 475 mm, 476 mm, 477 mm, 478 mm, 479 mm, 480 mm, 481 mm, 482 mm, 483 mm, 484 mm, 485 mm, 486 mm, 487 mm, 488 mm, 489 mm, 490 mm, 491 mm, 492 mm, 493 mm, 494 mm, 495 mm, 496 mm, 497 mm, 498 mm, 499 mm, 500 mm, 501 mm, 502 mm, 503 mm, 504 mm, 505 mm, 506 mm, 507 mm, 508 mm, 509 mm, 510 mm, 511 mm, 512 mm, 513 mm, 514 mm, 515 mm, 516 mm, 517 mm, 518 mm, 519 mm, 520 mm, 521 mm, 522 mm, 523 mm, 524 mm, 525 mm or a point value between any two of them.

[0170] In some embodiments, the length of the housing 11 extends along the length direction X of the first bin, and it is not required that the length of the housing 11 is completely parallel to the length direction X of the first bin, and it may be approximately parallel.

[0171] The width K of the housing 11 may be a point value of any one of 49 mm, 49.5 mm, 50 mm, 50.5 mm, 51 mm, 51.5 mm, 52 mm, 52.5 mm, 53 mm, 53.5 mm, 54 mm, 54.4 mm, 54.5 mm, 55 mm, 55.5 mm, 56 mm, 56.5 mm, 57 mm, 57.5 mm, 58 mm, 58.5 mm, 59 mm, 59.5 mm, 60 mm or a point value between any two of them.

[0172] In some embodiments, the width of the housing 11 extends along the width direction Y of the first bin, and it is not required that the width of the housing 11 is completely parallel to the width direction Y of the first bin, and it may be approximately parallel.

[0173] The height H of the housing 11 can be a point value of any one of 163 mm, 164 mm, 165 mm, 166 mm, 167 mm, 168 mm, 169 mm, 170 mm, 171 mm, 172 mm, 173 mm, 173.5 mm, 174 mm, 175 mm, 176 mm, 177 mm, 178 mm, 179 mm, 180 mm, 181 mm, 182 mm, 183 mm, 184 mm or a point value between any two of them.

[0174] In some embodiments, the height of the housing 11 extends along the height direction Z. It is not required that the height of the housing 11 is completely parallel to the height direction Z and can be approximately parallel.

[0175] Optionally, two adjacent bins are fixedly connected. For example, the first bin 20 and the second bin 30 are fixedly connected by welding, snap connection, locking connection, bolt connection or by fixing members. In this way, it is beneficial to reduce the risk of mutual displacement of the two bins after stacking, thereby improving the structural stability of the energy storage device.

[0176] Optionally, in addition to placing components such as the battery device 10 in the first bin 20 and the second bin 30, the energy storage system 100 may further include other bins stacked above the first bin 20 and the second bin 30, and the battery device 10 is also placed in the other bins. In other words, the energy storage system 100 may include three or more bins stacked in the height direction Z, and a plurality of battery devices 10 are placed in each bin to increase the power.

[0177] In the technical solution of the application embodiment, on the one hand, since the first bin 20 and the second bin 30 are modularly combined along the height direction Z, and the components arranged in the first bin 20 and the components arranged in the second bin 30 are integrated into a complete system by the control module 40. While meeting the transportation conditions, the first bin 20 and the components arranged therein are independently transported, the second bin 30 and the components arranged therein are independently transported, and a high-energy energy storage system 100 is formed after transportation. It is beneficial to make full use of the internal space of the first bin 20 and the internal space of the second bin 30 while enabling the energy storage system 100 to have both high energy and transportation convenience. On the other hand, a plurality of battery cells 1 are arranged along the width direction of the housing 11 and the electrode terminals 12 are arranged in the length direction of the housing 11, so that a plurality of battery cells 1 can be arranged to form a more compact battery cell assembly 1a. Then, by controlling the size of the housing 11 within a reasonable range, the internal space of the battery device 10 can be fully utilized by the battery cells 1, thereby improving the energy density of the battery device 10.

[0178] The above settings can load more battery devices 10 in the limited loading space of the energy storage system 100 to improve the volume energy density of the energy storage system 100.

[0179] According to some embodiments of the present application, please refer to Figures 1-4 , the battery device 10 includes two battery cell assemblies 1a arranged along the length direction X of the first housing, and each battery cell assembly 1a includes a plurality of battery cells 1 arranged along the width direction Y of the first housing.

[0180] The two battery cell assemblies 1a can be connected in series or in parallel. The number of battery cells 1 in the two battery cell assemblies 1a can be equal or unequal.

[0181] In the above solution, the two battery cell assemblies 1a are arranged along the length direction X of the first housing, and the plurality of battery cells 1 in each battery cell assembly 1a are arranged along the width direction Y of the first housing. Such an arrangement can reduce the size of the battery device 10 in the height direction Z of the first housing 20, so that the first housing 20 and the second housing 30 can accommodate more battery devices 10 along the height direction Z, thereby increasing the volumetric energy density of the energy storage system 100.

[0182] According to some embodiments of the present application, please refer to Figures 1-4 , the electrode terminals 12 of the battery cells 1 in one battery cell assembly 1a are arranged back to back with the electrode terminals 12 of the battery cells 1 in the other battery cell assembly 1a.

[0183] In some embodiments, the electrode terminals 12 of each battery cell 1 are arranged on the same first wall portion 111 of the housing 11 of the battery cell 1. In a battery device 10, along the length direction X of the first housing, each battery cell 1 in each battery cell assembly 1a has a first wall portion 111 facing away from the other battery cell assembly 1a, and the electrode terminals 12 are arranged on the first wall portion 111 to achieve the back-to-back arrangement of the electrode terminals 12 of the two battery cell assemblies 1a.

[0184] In the above solution, since the electrode terminals 12 of the battery cells 1 in one battery cell assembly 1a are arranged back to back with the electrode terminals 12 of the battery cells 1 in the other battery cell assembly 1a, the risk of interference in the assembly of the battery cells 1 in different battery cell assemblies 1a can be reduced during the assembly process, and it is easier to achieve the electrical connection of different battery cells 1 in one battery cell assembly 1a in a limited space.

[0185] According to some embodiments of the present application, please refer to Figures 1-4 , the electrode terminal 12 includes a positive terminal and a negative terminal, and the positive terminal and the negative terminal are arranged at the same end of the housing 11 in the length direction of the housing 11.

[0186] In some embodiments, in the same projection plane perpendicular to the height direction Z of the housing 11, the positive projection of the positive electrode terminal and the positive projection of the negative electrode terminal at least partially overlap. With such an arrangement, the positive electrode terminal and the negative electrode terminal can share a common space in the height direction Z of the housing 11, so as to increase the energy density of the battery device 10 including the above-mentioned battery cell 1.

[0187] In the above solution, the positive electrode terminal and the negative electrode terminal can share a common space, which is beneficial to further increase the energy density of the battery device 10, and thus further increase the energy density of the energy storage system 100.

[0188] According to some embodiments of the present application, please refer to Figures 1-4 , the battery cell 1 further includes a pressure relief mechanism 4, the pressure relief mechanism 4 is arranged on the housing 11, and in the length direction of the housing 11, the pressure relief mechanism 4 and the electrode terminal 12 are respectively located at opposite ends of the housing 11.

[0189] In some embodiments, the electrode terminal 12 is arranged on the first wall portion 111, the pressure relief mechanism 4 is arranged on the second wall portion 112, and the second wall portion 112 of the housing 11 of the battery cell 1 in one battery cell assembly 1a is arranged opposite to the second wall portion 112 of the housing 11 of the battery cell 1 in another battery cell assembly 1a.

[0190] In some embodiments, the battery device 10 further includes a separator, and the separator is arranged between two battery cell assemblies 1a along the length direction X of the first cell. The separator has a pressure relief channel for guiding the emissions when the battery cell 1 is in thermal runaway. The two battery cell assemblies 1a sharing a common pressure relief channel can reduce the space occupation in the length direction X of the first cell and increase the energy density of the battery device 10.

[0191] In the above solution, the pressure relief mechanism 4 and the electrode terminal 12 are respectively located at opposite ends of the housing 11. On the one hand, it can reduce the risk of fire caused by the emissions short-circuiting the positive electrode terminal and the negative electrode terminal when the battery cell 1 is in thermal runaway.

[0192] According to some embodiments of the present application, please refer to Figures 1-4 , two battery cell assemblies 1a are connected in series, and each battery cell assembly 1a includes 33 - 36 battery cells 1, and the 33 - 36 battery cells 1 are connected in series.

[0193] Two battery cell assemblies 1a are connected in series so that the number of battery cells 1 connected in series in the battery device 10 is 66 - 72.

[0194] Each battery cell assembly 1a may include 33 battery cells 1, 34 battery cells 1, 35 battery cells 1 or 36 battery cells 1.

[0195] In the above solution, the battery device 10 can have a relatively large voltage, which is beneficial to improving the charge and discharge efficiency of the energy storage system 100.

[0196] According to some embodiments of the present application, please refer to Figures 1-4 , each battery cell assembly 1a includes 34 battery cells 1, or, each battery cell assembly 1a includes 35 battery cells 1.

[0197] When each battery cell assembly 1a includes 34 battery cells 1, the number of battery cells 1 connected in series in the battery device 10 is 68. Taking the battery cell 1 as a lithium iron phosphate battery cell and the maximum voltage of the battery cell 1 being 3.61V as an example, the maximum voltage of the battery device 10 is 245.48V.

[0198] When each battery cell assembly 1a includes 35 battery cells 1, the number of battery cells 1 connected in series in the battery device 10 is 70. Taking the battery cell 1 as a lithium iron phosphate battery cell and the maximum voltage of the battery cell 1 being 3.61V as an example, the maximum voltage of the battery device 10 is 252.7V.

[0199] In the above solution, when there are 34 battery cells 1 connected in series in the battery cell assembly 1a, the battery device 10 includes 68 battery cells 1 connected in series. When there are 35 battery cells 1 connected in series in the battery cell assembly 1a, the battery device 10 includes 70 battery cells 1 connected in series. The above battery device 10 has a relatively large voltage, and the energy storage system 100 including the above battery device 10 has a relatively high charge and discharge efficiency.

[0200] According to some embodiments of the present application, please refer to Figures 1-4 , the length of the housing 11 is the dimension of the housing 11 along the length direction X of the first compartment, the width of the housing 11 is the dimension of the housing 11 along the width direction Y of the first compartment, the height of the housing 11 is the dimension of the housing 11 along the height direction Z. The dimension of the first compartment 20 in the length direction is greater than the dimension of the first compartment 20 in the width direction. A plurality of battery cells 1 are arranged along the width direction Y of the first compartment to form the battery cell assembly 1a, and the electrode terminals 12 are provided at at least one end of the housing 11 along the length direction X of the first compartment.

[0201] In some embodiments, the length of the housing 11 extends along the length direction X of the first compartment. It is not required that the length of the battery cell is exactly parallel to the length direction X of the first compartment, and it can be approximately parallel.

[0202] Along the length direction X of the first compartment, the electrode terminals 12 can be provided at the same end of the housing 11; or the electrode terminals 12 can be provided at opposite ends of the housing 11.

[0203] Since the influence coefficient of the redundant space in the length direction on the total loading capacity in the first bin 20 is less than that in the width and height directions Z, and in the second bin 30, the influence coefficient of the redundant space in the length direction on the total loading capacity is less than that in the width and height directions Z. In the above solution, the electrode terminals 12 are arranged at at least one end of the housing 11 along the length direction of the first bin 20, which can significantly reduce the space occupied by the electrode terminals 12 in the height direction Z and the width direction of the first bin 20, as well as the space occupied by the electrode terminals 12 in the height direction Z and the width direction of the second bin 30, and can significantly reduce the size of the battery cell 1 in the height direction Z and the width direction Y of the first bin. Furthermore, the size of the battery device 10 including a plurality of battery cells 1 in the height direction Z and the width direction Y of the first bin can be reduced. More battery devices 10 can be loaded in the limited loading space of the energy storage system 100 to improve the volume energy density of the energy storage system 100.

[0204] According to some embodiments of the present application, please refer to Figures 5-7 , the number of battery devices 10 in the first bin 20 is equal to the number of battery devices 10 in the second bin 30.

[0205] In some embodiments, the number of battery devices 10 in the first bin 20 is equal to the number of battery devices 10 in the second bin 30. The arrangement of the battery devices 10 in the first bin 20 and the arrangement of the battery devices 10 in the second bin 30 may be different.

[0206] In the above solution, the number of battery devices 10 in the first bin 20 is equal to the number of battery devices 10 in the second bin 30, which can improve the compatibility between the first bin 20 and the second bin 30.

[0207] According to some embodiments of the present application, please refer to Figure 5 and Figure 6 , the number of battery devices 10 in the first bin 20 is 36, and / or the number of battery devices 10 in the second bin 30 is 36.

[0208] In some embodiments, the number of battery devices 10 in the first bin 20 and the number of battery devices 10 in the second bin 30 are both 36.

[0209] In some embodiments, the battery devices 10 in the first bin 20 may be arranged in 6 rows and 6 columns, or may be arranged in 9 rows and 4 columns, or may be arranged in 12 rows and 3 columns.

[0210] In some embodiments, the battery devices 10 in the second bin 30 may be arranged in 6 rows and 6 columns, or may be arranged in 9 rows and 4 columns, or may be arranged in 12 rows and 3 columns.

[0211] In the above solution, there are 36 battery devices 10 in the first housing 20, and / or there are 36 battery devices 10 in the second housing 30, enabling the energy storage system 100 to have a relatively high energy.

[0212] According to some embodiments of the present application, referring to the figure, the battery devices 10 in the first housing 20 are arranged in 9 rows and 4 columns. The multiple battery devices 10 in each row are arranged along the length direction X of the first housing, and the multiple battery devices 10 in each column are arranged along the height direction Z; and / or the battery devices 10 in the second housing 30 are arranged in 9 rows and 4 columns. The multiple battery devices 10 in each row are arranged along the length direction X of the first housing, and the multiple battery devices 10 in each column are arranged along the height direction Z.

[0213] The battery devices 10 in the first housing 20 are arranged in 9 rows and 4 columns, with a total of 36 battery devices 10. The number of battery devices 10 in the second housing 30 is equal to the number of battery devices 10 in the first housing 20, and the battery devices 10 in the second housing 30 are arranged in 9 rows and 4 columns.

[0214] In the above solution, there are 9 rows of battery devices 10 arranged along the height direction Z of the first housing 20 and / or the second housing 30, and 4 columns of battery devices 10 arranged along the length direction X of the first housing. Under the condition of meeting the transportation of the energy storage system 100, the energy storage system 100 can have a relatively large energy.

[0215] According to some embodiments of the present application, please refer to Figure 5 , the dimension of the first housing 20 along the height direction Z and the dimension of the second housing 30 along the height direction Z are both smaller than the dimension of a standard container along the height direction Z.

[0216] In some embodiments, as Figure 5 shown, the dimension H1 of the first housing 20 along the height direction Z and the dimension H2 of the second housing 30 along the height direction Z are both smaller than 2896 mm.

[0217] The dimension of the first housing 20 along the height direction Z is smaller than the dimension of a standard container along the height direction Z, and the dimension of the second housing 30 along the height direction Z is smaller than the dimension of a standard container along the height direction Z. Taking a 20-foot standard container as an example, the height of the first housing 20 and the height of the second housing 30 are both smaller than 2896 mm.

[0218] In the above solution, the dimension of the first housing 20 along the height direction Z and the dimension of the second housing 30 along the height direction Z are both smaller than the dimension of a standard container along the height direction Z. Compared with a standard container, under the condition of the same energy, the first housing 20 and the second housing 30 can have a smaller volume, so that the first housing 20 and the second housing 30 can have a relatively large volume energy density after accommodating the battery devices 10.

[0219] According to some embodiments of the present application, please refer to Figures 5-7 , the dimension of the first bin 20 in the height direction Z and the dimension of the second bin 30 in the height direction Z are both greater than half of the dimension of a standard container in the height direction Z.

[0220] A usually fully loaded standard container with battery devices 10 may be overweight. The dimension of the first bin 20 in the height direction Z and the dimension of the second bin 30 in the height direction Z are both greater than half of the dimension of a standard container in the height direction Z, which is beneficial to loading more battery devices 10 on the premise that the first bin 20 and the second bin 30 are not overweight, and the battery devices 10 can make full use of the space of the first bin 20 and the second bin 30.

[0221] In the above solution, the dimension of the first bin 20 in the height direction Z and the dimension of the second bin 30 in the height direction Z are both greater than half of the dimension of a standard container in the height direction Z, so that the first bin 20 and the second bin 30 can have a smaller volume while accommodating more battery devices 10.

[0222] According to some embodiments of the present application, please refer to Figure 6 , the battery devices 10 in the first bin 20 are arranged in 12 rows and 3 columns. The multiple battery devices 10 in each row are arranged along the length direction X of the first bin, and the multiple battery devices 10 in each column are arranged along the height direction Z; and / or, the battery devices 10 in the second bin 30 are arranged in 9 rows and 4 columns. The multiple battery devices 10 in each row are arranged along the length direction X of the first bin, and the multiple battery devices 10 in each column are arranged along the height direction Z.

[0223] In some embodiments, as Figure 6 shown, the dimension H1 of the first bin 20 in the height direction Z is greater than 2896 mm, and the dimension H2 of the second bin 30 in the height direction Z is less than 2896 mm.

[0224] In some embodiments, the battery devices 10 in the first bin 20 are arranged in 12 rows and 3 columns, and the battery devices 10 in the second bin 30 are arranged in 9 rows and 4 columns.

[0225] In the above solution, there are 12 rows of battery devices 10 arranged along the height direction Z of the first bin 20, and 4 columns of battery devices 10 arranged along the length direction X of the first bin; and / or, there are 9 rows of battery devices 10 arranged along the height direction Z of the second bin 30, and 4 columns of battery devices 10 arranged along the length direction X of the first bin; under the condition of meeting the transportation of the energy storage system 100, the energy storage system 100 can have a larger energy.

[0226] According to some embodiments of the present application, please refer to Figure 6, the size of the first warehouse body 20 along the height direction Z is larger than the size of the standard container along the height direction Z; the size of the second warehouse body 30 along the height direction Z is smaller than the size of the standard container along the height direction Z.

[0227] The dimension of the first warehouse body 20 along the height direction Z is greater than the dimension of the standard container along the height direction Z, and the dimension of the second warehouse body 30 along the height direction Z is less than the dimension of the standard container along the height direction Z. In some embodiments, taking the standard container as a 20-foot standard container as an example, the height of the first warehouse body 20 is greater than 2896 mm, and the height of the second warehouse body 30 is less than 2896 mm.

[0228] In the above scheme, the battery device 10 and other components of the energy storage system 100 can be arranged in a targeted manner according to the dimensions of the first warehouse body 20 and the second warehouse body 30 along the height direction Z, so as to make full use of the internal space of the first warehouse body 20 and the second warehouse body 30 and make the energy storage system 100 more compact.

[0229] According to some embodiments of this application, please refer to Figure 7 , the number of battery devices 10 in the first compartment 20 is 30.

[0230] In some embodiments, Figure 7 As shown, the dimension H1 of the first warehouse body 20 along the height direction Z and the dimension H2 of the second warehouse body 30 along the height direction Z are both less than 2896 mm.

[0231] The number of the battery devices 10 in the first compartment 20 and the number of the battery devices 10 in the second compartment 30 are both 30 and / or the number of the battery devices 10 in the second compartment 30 is 30.

[0232] The battery devices 10 in the first compartment 20 may be arranged in 5 rows and 6 columns, 6 rows and 5 columns, or 10 rows and 3 columns.

[0233] The battery devices 10 in the second compartment 30 may be arranged in 5 rows and 6 columns, 6 rows and 5 columns, or 10 rows and 3 columns.

[0234] In the above solution, there are 30 battery devices 10 in the first compartment 20 and / or in the second compartment 30, so that the energy storage system 100 can have higher energy.

[0235] According to some embodiments of this application, please refer to Figure 7, the battery devices 10 in the first housing 20 are arranged in 10 rows and 3 columns. The multiple battery devices 10 in each row are arranged along the length direction X of the first housing, and the multiple battery devices 10 in each column are arranged along the height direction Z; and / or, the battery devices 10 in the second housing 30 are arranged in 10 rows and 3 columns. The multiple battery devices 10 in each row are arranged along the length direction X of the first housing, and the multiple battery devices 10 in each column are arranged along the height direction Z.

[0236] In some embodiments, the battery devices 10 in the first housing 20 are arranged in 10 rows and 3 columns, with a total of 30 battery devices 10. The number of battery devices 10 in the second housing 30 is equal to the number of battery devices 10 in the first housing 20, and the battery devices 10 in the second housing 30 are arranged in 10 rows and 3 columns.

[0237] In the above solution, there are 10 rows of battery devices 10 arranged along the height direction Z in the first housing 20 and / or the second housing 30, and 3 columns of battery devices 10 arranged along the length direction X of the first housing. Under the condition of meeting the transportation of the energy storage system 100, the energy storage system 100 can have a relatively large energy.

[0238] According to some embodiments of the present application, please refer to Figure 10 , Figure 11 , Figures 13-16 , the energy storage system 100 further includes a current conversion device 60. The current conversion device 60 includes a first current converter 601. The multiple battery devices 10 located in the first housing 20 include multiple first battery clusters, and the first current converter 601 is electrically connected to at least one first battery cluster;

[0239] and / or, the energy storage system 100 further includes a current conversion device 60. The current conversion device 60 includes a second current converter 602. The multiple battery devices 10 located in the second housing 30 include multiple second battery clusters, and the second current converter 602 is electrically connected to at least one second battery cluster.

[0240] In some embodiments, one of the first current converter 601 and the second current converter 602 is arranged in the first housing 20, and the other is arranged in the second housing 30.

[0241] In some embodiments, one of the first housing 20 and the second housing 30 houses the first current converter 601 and the second current converter 602.

[0242] A first current converter 601 can be electrically connected to one first battery cluster, or a first current converter 601 can also be electrically connected to multiple first battery clusters.

[0243] A second current converter 602 can be electrically connected to one second battery cluster, or a second current converter 602 can also be electrically connected to multiple second battery clusters.

[0244] In the above solution, the first converter 601 is electrically connected to the first battery cluster. The first converter 601 can realize the input or output of electrical energy of multiple battery devices 10 in the first battery cluster, enabling multiple first battery clusters to be respectively connected to electrical equipment or the power grid, making the integration degree of the multiple battery devices 10 located in the first housing 20 higher and the arrangement more compact, thereby improving the volume energy density of the energy storage system 100. The second converter 602 is electrically connected to the second battery cluster. The second converter 602 can realize the input or output of electrical energy of multiple battery devices 10 in the second battery cluster, enabling multiple second battery clusters to be respectively connected to electrical equipment or the power grid, making the integration degree of the multiple battery devices 10 located in the second housing 30 higher and the arrangement more compact, thereby improving the volume energy density of the energy storage system 100.

[0245] According to some embodiments of the present application, please refer to Figures 8-11 、 Figures 13-16 , 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 and a second control part 4032. The first converter 601 is electrically connected to at least one first battery cluster through the first control part 4031. The second control part 4032 is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located in the first housing 20;

[0246] And / or, the energy storage system 100 further includes a second sub-control module 404. The second sub-control module 404 includes a third control part 4041 and a fourth control part 4042. The second converter 602 is electrically connected to at least one second battery cluster through the third control part 4041. The fourth control part 4042 is communicatively connected to the control module 40 and the battery monitoring unit of the battery device 10 located in the second housing 30.

[0247] 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.

[0248] In some embodiments, one of the first sub-control module 403 and the second sub-control module 404 is disposed in the first housing 20, and the other is disposed in the second housing 30.

[0249] The first control part 4031 is a high-voltage part, and the electrical energy transmission between the first converter 601 and the first battery cluster is through the first control part 4031. The second control part 4032 is a low-voltage part, and communication data is transmitted between the second control part 4032 and the control module 40, enabling the control module 40 to monitor and control the battery device 10 located in the second housing 30.

[0250] The first converter 601 and at least one first battery cluster are electrically connected through the first control section 4031. The first converter 601 and the first battery clusters may be in one-to-one correspondence, or the first converter 601 may correspond to multiple first battery clusters. The second control section 4032 is communicatively connected to the control module 40 to transmit the control signals of the first sub-control module 403 to the control module 40, or to transmit the instructions of the control module 40 to the first sub-control module 403 for execution, so as to realize the communicative connection between the first sub-control module 403 and the control module 40. The first sub-control module 403 may be one, and one first sub-control module 403 is communicatively connected to the control module 40; the first sub-control module 403 may also be multiple, and multiple first sub-control modules 403 are all communicatively connected to the same control module 40.

[0251] In some embodiments, the energy storage system 100 further includes a second sub-control module 404. The second sub-control module 404 includes a third control section 4041 and a fourth control section 4042. Each second converter 602 is electrically connected to at least one second battery cluster through a third control section 4041, and the fourth control section 4042 is communicatively connected to the control module 40.

[0252] The third control section 4041 is a high-voltage part, and the power transmission between the second converter 602 and the second battery cluster is through the third control section 4041. The fourth control section 4042 is a low-voltage part, and communication data is transmitted between the fourth control section 4042 and the control module 40, which can realize the monitoring and control of the battery device 10 located in the second compartment 30 by the control module 40.

[0253] The second converter 602 and the second battery clusters may be in one-to-one correspondence, or the second converter 602 may correspond to multiple second battery clusters.

[0254] The fourth control section 4042 is communicatively connected to the control module 40 to transmit the control signals of the second sub-control module 404 to the control module 40, or to transmit the instructions of the control module 40 to the second sub-control module 404 for execution, so as to realize the communicative connection between the second sub-control module 404 and the control module 40. The second sub-control module 404 may be one, and one second sub-control module 404 is communicatively connected to the control module 40; the second sub-control module 404 may also be multiple, and multiple second sub-control modules 404 are all communicatively connected to the same control module 40.

[0255] In some embodiments, the energy storage system 100 further includes a first sub-control module 403 and a second sub-control module 404. The second control part 4032 of the first sub-control module 403 is communicatively connected between the first battery monitoring circuit and the control module 40, and the fourth control part 4042 of the second sub-control module 404 is communicatively connected between the second battery monitoring circuit and the control module 40.

[0256] In some embodiments, 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. The second control part 4032 of the first sub-control module 403 is configured to forward first data. 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. The second sub-control module 404 is configured to forward second data.

[0257] In some embodiments, 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. The second control part 4032 of the first sub-control module 403 is configured to acquire and process first data, and transfer the processed data to the control module 40. The fourth control part 4042 of the second sub-control module 404 is communicatively connected between the second battery monitoring circuit and the control module 40. The fourth control part 4042 of the second sub-control module 404 is configured to acquire and process second data, and transfer the processed data to the control module 40.

[0258] In some embodiments, the first battery monitoring circuit is directly communicatively connected to the control module 40, and the second battery monitoring circuit is directly communicatively connected to the control module 40. The control module 40 processes the first data and the second data to determine the operating state data of the energy storage system 100.

[0259] In some embodiments, the energy storage system 100 further includes a first sub-control module 403 and a second sub-control module 404. The second control part 4032 of the first sub-control module 403 is communicatively connected between the first battery monitoring circuit and the control module 40, and the fourth control part 4042 of the second sub-control module 404 is communicatively connected between the first battery monitoring circuit and the control module 40.

[0260] The fourth control part 4042 of the second sub-control module 404 may be a part that is connected between the second battery monitoring circuit and the control module 40 and is configured to forward information such as the current, voltage, power, state of charge, or temperature of the battery cell 1 of the battery device 1 located in the second compartment 30 to the control module 40 or forward it to the control module 40 after processing.

[0261] 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 the 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 it and then forward it to the control module 40. The fourth control part 4042 of the second sub-control module 404 is communicatively connected between the second battery monitoring circuit and the control module 40, enabling the second sub-control module 404 to forward information such as the current, voltage, power, state of charge, or temperature of the battery cell 1 of the battery device 10 located in the second compartment 30 to the control module 40 or to process it and then forward it to the control module 40.

[0262] By providing the first sub-control module 403 between the first battery monitoring circuit and the control module 40 and the 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 has a three-level framework, reducing the length and complexity of the communication harness, reducing sampling errors, being beneficial to improving the reliability of the system, and also reducing the requirements for the processor and the communication bus, being beneficial to reducing the overall cost of the system.

[0263] In the above solution, the first inverter 601 is electrically connected to at least one first battery cluster through the first control part 4031, and the second control part 4032 is communicatively connected to the control module 40. While realizing the input or output of electrical energy of the battery device 10 located in the first compartment 20, the accuracy of data acquisition of the battery device 10 can be improved; the second inverter 602 is electrically connected to at least one second battery cluster through the third control part 4041, and the fourth control part 4042 is communicatively connected to the control module 40. While realizing the input or output of electrical energy of the battery device 10 located in the second compartment 30, the accuracy of data acquisition of the battery device 10 can be improved.

[0264] According to some embodiments of the present application, please refer to Figures 8-11 、 Figures 13-16 , the first inverter 601 and the first control part 4031 are integrated into one body; and / or, the second inverter 602 and the third control part 4041 are integrated into one body.

[0265] The first inverter 601 and the first control part 4031 are integrated into one body so that the first inverter 601 is integrated with the high-voltage part of the first sub-control module 403, which helps the electrical connection between the first inverter 601 and the first control part 4031.

[0266] In this embodiment, by integrating the first converter 601 with the corresponding first control part 4031, the integration degree of the first control part 4031 and the first converter 601 is improved, and the installation difficulty of the first control part 4031 and the first converter 601 is reduced.

[0267] In some embodiments, the second converter 602 is integrated with the corresponding third control part 4041.

[0268] The integration of the second converter 602 and the third control part 4041 enables the integration of the second converter 602 with the high-voltage part of the second sub-control module 404, which is conducive to the electrical connection between the second converter 602 and the third control part 4041.

[0269] The integration of the first converter 601 and the first control part 4031 can be understood as the physical fusion of the first converter 601 and the first control part 4031. The two are a unit. During the assembly process, the assembly of the first converter 601 and the first control part 4031 can be completed synchronously with just one assembly. For example, the two are integrated on an installation base, which can be a plate or a housing.

[0270] The integration of the second converter 602 and the third control part 4041 can be understood as the physical fusion of the second converter 602 and the third control part 4041. The two are a unit. During the assembly process, the assembly of the second converter 602 and the third control part 4041 can be completed synchronously with just one assembly. For example, the two are integrated on an installation base, which can be a plate or a housing.

[0271] In the above solution, the first converter 601 is integrated with the first control part 4031; and / or, the second converter 602 is integrated with the third control part 4041. This can simplify the assembly process of the energy storage system 100 and improve the assembly efficiency of the energy storage system 100.

[0272] According to some embodiments of the present application, please refer to Figures 8-11 、 Figures 13-16 , one first converter 601 is correspondingly arranged for each first battery cluster, and one second converter 602 is correspondingly arranged for each second battery cluster.

[0273] The number of battery devices 10 connected in series in each first battery cluster is equal. One first converter 601 is correspondingly arranged for each first battery cluster. When the first battery cluster is in the charging state, the first converter 601 acts as a rectifier to convert electrical energy from external alternating current into direct current and store it in the first battery cluster. When the first battery cluster is in the discharging state, the first converter 601 acts as an inverter to convert the electrical energy stored in the first battery cluster from direct current into alternating current and supply it to the electrical equipment.

[0274] The number of battery devices 10 connected in series in each second battery cluster is equal. One second current converter 602 is correspondingly provided for each second battery cluster. When the second battery cluster is in a charging state, the second current converter 602 acts as a rectifier to convert electric energy from external alternating current into direct current and store it in the second battery cluster. When the second battery cluster is in a discharging state, the second current converter 602 acts as an inverter to convert the electric energy stored in the second battery cluster from direct current into alternating current and supply it to the electrical equipment.

[0275] In the above solution, the first battery clusters and the first current converters 601 are in one-to-one correspondence, which reduces the power requirement of the first current converters 601 and improves the stability of the electric energy input or output of the first battery clusters. The second battery clusters and the second current converters 602 are in one-to-one correspondence, which reduces the power requirement of the second current converters 602 and improves the stability of the electric energy input or output of the second battery clusters.

[0276] According to some embodiments of the present application, please refer to Figures 8-11 、 Figures 13-16 , each first battery cluster includes six battery devices 10 connected in series; and / or, each second battery cluster includes six battery devices 10 connected in series.

[0277] In some embodiments, each first battery cluster includes six battery devices 10 connected in series.

[0278] Taking the first housing 20 including 36 battery devices 10 as an example, every 6 out of the 36 battery devices 10 are connected in series to form a first battery cluster. The 6 first battery clusters are independent of each other, and each first battery cluster is connected to a first current converter 601.

[0279] In some embodiments, each second battery cluster includes six battery devices 10 connected in series.

[0280] Taking the second housing 30 including 36 battery devices 10 as an example, every 6 out of the 36 battery devices 10 are connected in series to form a second battery cluster. The 6 second battery clusters are independent of each other, and each second battery cluster is connected to a second current converter 602.

[0281] In some embodiments, each first battery cluster includes six battery devices 10 connected in series; each second battery cluster includes six battery devices 10 connected in series.

[0282] In the embodiment where both the first housing 20 and the second housing 30 accommodate 36 battery devices 10, the 6 first current converters 601 correspond to the 6 first battery clusters in the first housing 20, and the 6 second current converters 602 correspond to the 6 second battery clusters in the second housing 30.

[0283] In the above solution, each first power conversion device 60 can achieve the input or output of electrical energy of six battery devices 10. A plurality of first inverters 601 are respectively electrically connected to a plurality of first battery clusters, reducing the risk of interference between the plurality of first battery clusters and improving the performance of the first housing 20. Each second power conversion device 60 can achieve the input or output of electrical energy of six battery devices 10. A plurality of second inverters 602 are respectively electrically connected to a plurality of second battery clusters, reducing the risk of interference between the plurality of second battery clusters and improving the performance of the second housing 30.

[0284] According to some embodiments of the present application, please refer to Figure 10 、 Figure 11 、 Figures 13-16 , the maximum operating voltage of the first inverter 601 is 1500V; and / or, the maximum operating voltage of the second inverter 602 is 1500V.

[0285] In some embodiments, the maximum operating voltage of the first inverter 601 is 1500V. In some embodiments, the maximum operating voltage of the second inverter 602 is 1500V.

[0286] In some embodiments, the maximum operating voltage of the first inverter 601 is 1500V; the maximum operating voltage of the second inverter 602 is 1500V.

[0287] Taking the lithium iron phosphate battery cell 1 as an example, the maximum operating voltage of the battery cell 1 is 3.65V. Each battery device 10 includes 68 series-connected battery cells 1, and the maximum operating voltage of each battery device 10 is 248.2V. Each first battery cluster includes 6 series-connected battery devices 10, and each second battery cluster includes 6 series-connected battery devices 10. Therefore, the maximum operating voltage of the first battery cluster is 1489.2V, and the maximum operating voltage of the first inverter 601 is 1500V, so that the first inverter 601 can be adapted to the first battery cluster. The maximum operating voltage of the second battery cluster is 1489.2V, and the maximum operating voltage of the second inverter 602 is 1500V, so that the second inverter 602 can be adapted to the second battery cluster.

[0288] In this embodiment, one first battery cluster is correspondingly electrically connected to one first inverter 601 with a maximum operating voltage of 1500V, so that one first battery cluster can be adapted to a working voltage of 1500V. One second battery cluster is correspondingly electrically connected to one second inverter 602 with a maximum operating voltage of 1500V, so that one second battery cluster can be adapted to a working voltage of 1500V, improving the performance of the energy storage system 100.

[0289] In the above scheme, a first battery cluster is electrically connected to a first converter 601 with a maximum operating voltage of 1500V, so that a first battery cluster can adapt to an operating voltage of 1500V, and a second battery cluster is electrically connected to a second converter 602 with a maximum operating voltage of 1500V, so that a second battery cluster can adapt to an operating voltage of 1500V, thereby improving the performance of the energy storage system 100.

[0290] According to some embodiments of this application, please refer to Figures 10-14 The energy storage system 100 further includes a thermal management module 50 , which is used to perform thermal management on the multiple battery devices 10 in the first warehouse body 20 and the second warehouse body 30 ; at least a portion of the thermal management module 50 is accommodated in the first warehouse body 20 .

[0291] The thermal management module 50 can manage the temperature of the battery device 10 and reduce the risk of the battery device 10 temperature getting out of control.

[0292] The thermal management module 50 may be entirely accommodated in the first compartment 20 ; or a portion of the thermal management module 50 may be accommodated in the first compartment 20 , and the other portion may be accommodated in the second compartment 30 .

[0293] In the above scheme, at least part of the thermal management module 50 is accommodated in the first warehouse body 20, so that at least part of the thermal management module 50 can be transported synchronously with the first warehouse body 20, and some pipelines can be connected in advance before transportation, thereby improving the installation convenience of the energy storage system 100.

[0294] According to some embodiments of this application, please refer to Figure 10 , Figure 11 and Figure 13 , the dimension of the first warehouse body 20 along the height direction Z is greater than the dimension of the second warehouse body 30 along the height direction Z.

[0295] The size of the first compartment 20 along the height direction Z is greater than the size of the second compartment 30 along the height direction Z, which means that when the second compartment 30 is fully loaded with battery devices 10, the first compartment 20 can load the same number of battery devices 10 as the second compartment 30 and reserve some space in the height direction Z to set up the thermal management module 50.

[0296] In the above scheme, at least part of the thermal management module 50 is accommodated in the first warehouse body 20. Since the size of the first warehouse body 20 along the height direction Z is larger than the size of the second warehouse body 30 along the height direction Z, the thermal management module 50 can utilize the space in the height direction Z of the first warehouse body 20 without occupying too much space in the width and length directions X of the first warehouse body 20, which is beneficial to improving the area energy density of the energy storage system 100.

[0297] According to some embodiments of this application, please refer toFigures 10-14 All of the thermal management module 50 is accommodated within the first housing 20.

[0298] All of the thermal management module 50 being accommodated within the first housing 20 can mean that the thermal management module 50 is located on top of the multiple battery devices 10 within the first housing 20; or that the thermal management module 50 is located on one side of the multiple battery devices 10 within the first housing 20 along the length direction X of the first housing; or that the thermal management module 50 is located on one side of the multiple battery devices 10 within the first housing 20 along the width direction Y of the first housing.

[0299] In the above solution, accommodating all of the thermal management module 50 within the first housing 20 allows the thermal management module 50 to be transported synchronously with the first housing 20, and most of the pipelines can be pre-connected before transportation, improving the installation convenience of the energy storage system 100.

[0300] According to some embodiments of the present application, please refer to Figure 10 , the first housing 20 includes a first sub-housing 201 and a second sub-housing 202. The first housing 20 has a first isolation layer 204 that separates the first sub-housing 201 and the second sub-housing 202. The first sub-housing 201 is located above the second sub-housing 202. All of the thermal management module 50 is accommodated within the first sub-housing 201, and the battery devices 10 located within the first housing 20 are accommodated within the second sub-housing 202.

[0301] In some embodiments, as Figure 10 shown, the dimension H1 of the first housing 20 along the height direction Z and the dimension H2 of the second housing 30 along the height direction Z are both less than 2896 mm.

[0302] The first isolation layer 204 separates the first sub-housing 201 and the second sub-housing 202 so that the first sub-housing 201 and the second sub-housing 202 are independent of each other. The first sub-housing 201 is located above the second sub-housing 202. The thermal management module 50 is accommodated within the first sub-housing 201 and the battery devices 10 are accommodated within the second sub-housing 202. The first isolation layer 204 can insulate the thermal management module 50 and the battery devices 10 located within the first housing 20.

[0303] In the above solution, the assembly of the thermal management module 50 and the battery devices 10 can be carried out with the first isolation layer 204 as the assembly reference. The thermal management module 50 is located above the battery devices 10. The thermal management module 50 can block sunlight for the battery devices 10, reduce the sunlight irradiation on the battery devices 10, and improve the temperature uniformity of each battery device 10.

[0304] According to some embodiments of the present application, please refer to Figure 10, the energy storage system 100 further includes a converter device 60. The converter device 60 includes a first converter 601 disposed in the first housing 20, and the first converter 601 is electrically connected to the battery device 10 located in the first housing 20;

[0305] The first housing 20 further includes a third sub-housing 203. The first isolation layer 204 also separates the first sub-housing 201 and the third sub-housing 203. The first sub-housing 201 is located above the third sub-housing 203. The first housing 20 has a second isolation layer 205 that separates the second sub-housing 202 and the third sub-housing 203. The second sub-housing 202 and the third sub-housing 203 are arranged along the length direction X of the first housing. The first converter 601 is accommodated in the third sub-housing 203.

[0306] Both the second sub-housing 202 and the third sub-housing 203 are located below the first sub-housing 201. The thermal management component 3 located in the first sub-housing 201 can cover the battery device 10 located in the second sub-housing 202 and the first converter 601 located in the third sub-housing 203. The first converter 601 and the battery device 10 are arranged along the length direction X. The second isolation layer 205 can isolate the first converter 601 and the battery device 10.

[0307] In some embodiments, the first converter 601 corresponds to the first battery cluster one by one, and multiple first converters 601 are all disposed in the third sub-housing 203.

[0308] In the above solution, by accommodating the first converter 601 in the third sub-housing 203, the first converter 601 and the battery device 10 located in the second sub-housing 202 can be arranged along the length direction X, which is convenient for the installation and independent maintenance of the first converter 601 and the battery device 10, and is beneficial to improving the installation and maintenance efficiency of the energy storage system 100.

[0309] According to some embodiments of the present application, please refer to Figure 10 , the height of the first housing 20 is 2700mm - 2900mm, and the height of the second housing 30 is 2300mm - 2500mm.

[0310] The dimension of the first housing 20 along the height direction Z can be any point value among 2700mm, 2710mm, 2720mm, 2730mm, 2740mm, 2750mm, 2760mm, 2770mm, 2780mm, 2790mm, 2800mm, 2810mm, 2820mm, 2830mm, 2840mm, 2850mm, 2860mm, 2870mm, 2880mm, 2890mm, 2900mm or the point value between any two of them.

[0311] The dimension of the second housing 30 in the height direction Z can be a point value of any one of 2300mm, 2310mm, 2320mm, 2330mm, 2340mm, 2350mm, 2360mm, 2370mm, 2380mm, 2390mm, 2400mm, 2410mm, 2420mm, 2430mm, 2440mm, 2450mm, 2460mm, 2470mm, 2480mm, 2490mm, 2500mm or a point value between any two of them.

[0312] In the above solution, setting the first housing 20 to have a relatively large height enables the thermal management module 50 to utilize the space in the height direction Z of the first housing 20 without occupying the space in the width and length directions X of the first housing 20, which is beneficial to improving the area energy density of the energy storage system 100; in addition, setting the height of the second housing 30 to be relatively small reduces the volume of the second housing 30 while enabling the second housing 30 to have a relatively large energy, which is beneficial to improving the volume energy density of the second housing 30.

[0313] According to some embodiments of the present application, please refer to Figure 11 , the first housing 20 includes a first sub-housing 201 and a second sub-housing 202. The first housing 20 has a first isolation layer 204, and the first isolation layer 204 separates the first sub-housing 201 and the second sub-housing 202. The second sub-housing 202 is located below the first sub-housing 201, and the battery device 10 located in the first housing 20 is accommodated in the second sub-housing 202; the thermal management module 50 includes a fan 506 and a condenser 501. The fan 506 is used to dissipate heat for the condenser 501. The fan 506 and the condenser 501 are located in the first sub-housing 201, and ventilation openings are provided at the top and side of the first sub-housing 201.

[0314] In some embodiments, as Figure 11 shown, the dimension H1 of the first housing 20 in the height direction Z and the dimension H2 of the second housing 30 in the height direction Z are both less than 2896mm.

[0315] Inside the first housing 20, the first isolation layer 204 and the second isolation layer 205 divide the first housing 20 into a first sub-housing 201, a second sub-housing 202, and a third sub-housing 203. The first sub-housing 201 is located above the second sub-housing 202 and the third sub-housing 203, and the second sub-housing 202 and the third sub-housing 203 are arranged along the length direction X.

[0316] The fan 506 is placed inside the first sub-compartment 201 such that the fan 506 is located at the top of the first housing 20. A ventilation opening may be provided at the top of the first sub-compartment 201 to facilitate ventilation between the fan 506 and the external environment, thereby enabling heat exchange between the condenser 501 and the outside. It can be understood that the ventilation opening may also be provided on the side wall of the first sub-compartment 201 to increase the heat dissipation area of the thermal management module 50.

[0317] In the above solution, the fan 506 and the condenser 501 are relatively large in size. By arranging them in the first sub-compartment 201 in the height direction Z, while loading as many battery devices 10 as possible, the space in the height direction Z of the first housing 20 is fully utilized, enhancing the energy of the first housing 20. In addition, the ventilation openings provided at the top and side of the first sub-compartment 201 can not only ensure comprehensive heat exchange for the battery devices 10 inside the first housing 20, but also improve the heat dissipation effect of the fan 506 on the condenser 501, enabling the battery devices 10 to operate at an appropriate temperature, which is beneficial for the energy storage system 100 to have a high charge-discharge efficiency.

[0318] According to some embodiments of the present application, please refer to Figure 11 and Figure 12 , the first housing 20 further includes a third sub-compartment 203. The first isolation layer 204 also separates the first sub-compartment 201 and the third sub-compartment 203. The first sub-compartment 201 is located above the third sub-compartment 203. The first housing 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 housing. The battery device 10 includes a thermal management component 3. The thermal management module 50 further includes a pumping device 502, a heat exchanger 503, a compressor 504, and a throttling device 505. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located inside the first housing 20 are connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located inside the second housing 30 are connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are connected to form a refrigerant circulation loop 509. At least one of the heat exchanger 503, the pumping device 502, the compressor 504, and the throttling device 505 is accommodated in the third sub-compartment 203.

[0319] The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first housing 20 are connected to form a first cooling circulation loop 507. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second housing 30 are connected to form a second cooling circulation loop 508. The first cooling circulation loop 507 and the second cooling circulation loop 508 are used to cool the battery cells 1. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are connected to form a refrigerant circulation loop 509. The refrigerant circulation loop 509 is used to cool the coolant flowing through the heat exchanger 503.

[0320] The pumping device 502, the heat exchanger 503, the thermal management component 3, and the pumping device 502 are connected to form a cooling circulation loop.

[0321] It should be noted that the pumping device 502 (which can also be called a water pump) is a component for transporting the coolant. The heat exchanger 503 is a component for performing heat exchange 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, etc.

[0322] Under the transportation action of the pumping device 502, the coolant can circulate in the cooling circulation loop and circulate through the pumping device 502, the heat exchanger 503, the thermal management component 3, and the pumping device 502. The above connections can be direct connections or indirect connections via pipelines.

[0323] The compressor 504, the condenser 501, the throttling device 505, the heat exchanger 503, and the compressor 504 are connected to form a refrigerant circulation loop 509.

[0324] In some embodiments, the pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first housing 20 are sequentially connected to form a first cooling circulation loop 507. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second housing 30 are sequentially connected to form a second cooling circulation loop 508. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509.

[0325] It should be noted that the above connections can be direct connections or indirect connections via pipelines. The compressor 504 is a component that provides power for the refrigerant cycle and can cool the refrigerant. The throttling device 505 is a component used for temperature reduction and pressure reduction, and the throttling device 505 can be, but is not limited to, a throttle valve, an expansion valve, etc. The condenser 501 is a component used for heat exchange with the refrigerant flowing through it. The 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 latent heat of vaporization, can evaporate and condense at a relatively low temperature, and can achieve a refrigeration 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.

[0326] Among them, the heat exchanger 503 is provided in both the cooling cycle loop and the first refrigerant cycle loop 509. The interior of the heat exchanger 503 is provided with a coolant flow channel and a refrigerant flow channel. The coolant flow channel participates in forming the cooling cycle loop, and the coolant flow channel is used for the coolant to flow through it. The refrigerant flow channel participates in forming the first refrigerant cycle loop 509, and the refrigerant flow channel is used for the refrigerant to flow through it. The coolant flow channel and the refrigerant flow channel are not connected to each other so that the coolant and the refrigerant do not mix. In the heat exchanger 503, the coolant and the refrigerant can perform heat exchange. In particular, the heat of the coolant can be exchanged to the refrigerant so that the heat exchanger 503 can cool the coolant flowing through it.

[0327] It can be that only the condenser 501 and the heat exchanger 503 are accommodated in the first sub-compartment 201, and the pumping device 502, the compressor 504, and the throttling device 505 are all accommodated in the third sub-compartment 203; it can also be that the condenser 501, the heat exchanger 503, and the pumping device 502 are accommodated in the first sub-compartment 201, and the compressor 504 and the throttling device 505 are all accommodated in the third sub-compartment 203; it can also be that the condenser 501, the heat exchanger 503, the pumping device 502, and the compressor 504 are accommodated in the first sub-compartment 201, and the throttling device 505 is accommodated in the third sub-compartment 203; it can also be that the condenser 501, the heat exchanger 503, the pumping device 502, and the throttling device 505 are accommodated in the first sub-compartment 201, and the compressor 504 is accommodated in the third sub-compartment 203; it can also be that the condenser 501, the heat exchanger 503, the throttling device 505, and the compressor 504 are accommodated in the first sub-compartment 201, and the pumping device 502 is accommodated in the third sub-compartment 203; it can also be that the condenser 501, the heat exchanger 503, and the throttling device 505 are accommodated in the first sub-compartment 201, and the compressor 504 and the pumping device 502 are accommodated in the third sub-compartment 203; it can also be that the condenser 501, the heat exchanger 503, and the compressor 504 are accommodated in the first sub-compartment 201, and the throttling device 505 and the pumping device 502 are accommodated in the third sub-compartment 203.

[0328] In the above solution, accommodating at least one of the relatively small-sized heat exchanger 503, pumping device 502, compressor 504, and throttling device 505 in the third sub-compartment 203 can make full use of the internal space of the first housing 20 on the premise of not occupying too much space of the loaded battery device 10 as much as possible, making the structure of the energy storage system 100 more compact and improving the volume energy density of the energy storage system 100.

[0329] According to some embodiments of the present application, please refer to Figure 9 , the energy storage system 100 further includes a power conversion device 60. The power conversion device 60 includes a first power converter 601 disposed in the first housing 20. The first power converter 601 is electrically connected to a plurality of battery devices 10 located in the first housing 20; the plurality of battery devices 10 and the first power converter 601 are accommodated in the second sub-compartment 202, and the first power converter 601 is located below the plurality of battery devices 10.

[0330] The first housing 20 includes a plurality of first battery clusters, and each first battery cluster is correspondingly electrically connected to a first power converter 601. The first power converter 601 and the battery devices 10 accommodated in the first housing 20 are both accommodated in the second sub-compartment 202.

[0331] In the above solution, the first power converter 601 is disposed at a relatively low position, which is convenient for the installation and maintenance of the first power converter 601.

[0332] According to some embodiments of the present application, please refer to Figure 11 , the height of the first housing 20 is 2600 mm - 2800 mm, and the height of the second housing 30 is 2300 mm - 2500 mm.

[0333] The dimension of the first housing 20 in the height direction Z can be a point value of any one of 2600 mm, 2610 mm, 2620 mm, 2630 mm, 2640 mm, 2650 mm, 2660 mm, 2670 mm, 2680 mm, 2690 mm, 2700 mm, 2710 mm, 2720 mm, 2730 mm, 2740 mm, 2750 mm, 2760 mm, 2770 mm, 2780 mm, 2790 mm, 2800 mm or a point value between any two of them.

[0334] The dimension of the second bin body 30 in the height direction Z can be a point value of any one of 2300mm, 2310mm, 2320mm, 2330mm, 2340mm, 2350mm, 2360mm, 2370mm, 2380mm, 2390mm, 2400mm, 2410mm, 2420mm, 2430mm, 2440mm, 2450mm, 2460mm, 2470mm, 2480mm, 2490mm, 2500mm or a point value between any two of them.

[0335] In the above solution, setting the height of the first bin body 20 relatively large enables some of the thermal management modules 50 to utilize the space in the height direction Z of the first bin body 20 without overly occupying the space in the width and length directions X of the first bin body 20, which is beneficial to improving the area energy density of the energy storage system 100; in addition, setting the height of the second bin body 30 relatively small reduces the volume of the second bin body 30 while enabling the second bin body 30 to have a large amount of energy, which is beneficial to improving the volume energy density of the second bin body 30.

[0336] According to some embodiments of the present application, please refer to Figure 13 , the first bin body 20 includes a second sub-bin 202 and a third sub-bin 203. The first bin body 20 has a second isolation layer 205. The second isolation layer 205 separates the second sub-bin 202 and the third sub-bin 203. The second sub-bin 202 and the third sub-bin 203 are arranged along the length direction X of the first bin body. A plurality of battery devices 10 located in the first bin body 20 are accommodated in the second sub-bin 202, and the thermal management module 50 is accommodated in the third sub-bin 203.

[0337] In some embodiments, as Figure 13 shown, the dimension H1 of the first bin body 20 in the height direction Z is greater than 2896mm, and the dimension H2 of the second bin body 30 in the height direction Z is less than 2896mm.

[0338] In some embodiments, all of the thermal management module 50 is accommodated in the third sub-bin 203, and the thermal management module 50 and the battery devices 10 located in the first bin body 20 are arranged along a first direction.

[0339] In the above solution, the thermal management module 50 and the battery devices 10 in the second sub-bin 202 are arranged along the length direction X, which can reduce the interference of the thermal management module 50 on the battery devices 10 during operation and enable the battery devices 10 to have high reliability. At the same time, the thermal management module 50 is arranged on one side of the first bin body in the length direction X, making it easier for maintenance personnel to access the thermal management module 50, thereby improving the maintenance convenience of the thermal management module 50.

[0340] According to some embodiments of the present application, please refer to Figure 13, the energy storage system 100 further includes a current conversion device 60. The current conversion device 60 includes a first current converter 601 disposed in the first housing 20. The first current converter 601 is electrically connected to a plurality of battery devices 10 located in the first housing 20. The first current converter 601 is accommodated in the second sub-housing 202 and is located below the plurality of battery devices 10.

[0341] In some embodiments, the first housing 20 includes a plurality of first battery clusters, and every two first battery clusters are correspondingly electrically connected to a first current converter 601. The first current converter 601 and the battery devices 10 accommodated in the first housing 20 are both accommodated in the second sub-housing 202.

[0342] In the above solution, while the thermal management module 50 is accommodated in the third sub-housing 203, the first current converter 601 is accommodated in the second sub-housing 202 and is disposed below the plurality of battery devices 10, which can reduce the interference of the thermal management module 50 on the first current converter 601, enable the first current converter 601 to have high operation stability, and at the same time, can also improve the maintenance convenience of the first current converter 601.

[0343] According to some embodiments of the present application, please refer to Figure 17 , the energy storage system 100 further includes a third housing 80 and a thermal management module 50. The thermal management module 50 is used for thermal management of the plurality of battery devices 10 in the first housing 20 and the second housing 30. The third housing 80 and the second housing 30 are arranged in a direction intersecting with the height direction Z. Among them, the thermal management module 50 is accommodated in the third housing 80.

[0344] In some embodiments, as Figure 17 shown, the dimension H1 of the first housing 20 along the height direction Z and the dimension H2 of the second housing 30 along the height direction Z are both less than 2896 mm.

[0345] The third housing 80 can be arranged at an interval from the second housing 30. Of course, the third housing 80 can also be hung on one side of the second housing 30.

[0346] In the above solution, since the third housing 80 provided with the thermal management module 50 and the second housing 30 are arranged in a direction intersecting with the height direction Z, the interference of the thermal management module 50 on the battery devices 10 can be reduced, and the operation stability of the battery devices 10 can be improved. And the maintenance of the battery devices 10, the control module 40 and the thermal management module 50 is relatively convenient.

[0347] According to some embodiments of the present application, please refer to Figure 17 , the energy storage system 100 further includes a power distribution module 401. The power distribution module 401 is accommodated in the third housing 80.

[0348] 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, a fire control module 402, a thermal management module 50, etc.

[0349] In the above solution, since the power distribution module 401 needs to be manually intervened or maintained with a relatively high frequency, accommodating the power distribution module 401 in the third bin 80 can significantly improve the installation and maintenance convenience of the energy storage system 100.

[0350] According to some embodiments of the present application, please refer to Figure 17 , the first bin 20 includes a second sub-bin 202 and a third sub-bin 203. The first bin 20 has a second isolation layer 205, and the second isolation layer 205 separates the second sub-bin 202 and the third sub-bin 203. The second sub-bin 202 and the third sub-bin 203 are arranged along the length direction X of the first bin; the battery device 10 located in the first bin 20 is accommodated in the second sub-bin 202; the energy storage system 100 further includes a converter device 60, and the converter device 60 is electrically connected to the battery device 10. The converter device 60 includes a first converter 601 disposed in the third sub-bin 203, and the first converter 601 is electrically connected to the battery device 10 located in the first bin 20.

[0351] In some embodiments, the first bin 20 includes a plurality of first battery clusters, and each first battery cluster is correspondingly electrically connected to a first converter 601.

[0352] In the above solution, by disposing the first converter 601 on one side of the first bin 20 along its length direction X, it is convenient for the maintenance of the first converter 601.

[0353] According to some embodiments of the present application, please refer to Figure 10 , Figure 11 , Figures 13-16 , the control module 40 is accommodated in the second bin 30.

[0354] The control module 40 can be disposed at any position in the second bin 30, such as the bottom or side of the second bin 30, etc.

[0355] In the above solution, since the height of the second bin 30 is relatively low, accommodating at least a part of the control module 40 in the second bin 30 can improve the installation and maintenance convenience of the control module 40.

[0356] According to some embodiments of the present application, please refer to Figure 10 , Figure 11 , Figures 13-16, the second housing 30 includes a fourth sub - housing 301 and a fifth sub - housing 302. The second housing 30 has a third isolation layer 303, and the third isolation layer 303 separates the fourth sub - housing 301 and the fifth sub - housing 302. The fourth sub - housing 301 and the fifth sub - housing 302 are arranged along the length direction X of the first housing; the battery device 10 located in the second housing 30 is accommodated in the fourth sub - housing 301, and the control module 40 is accommodated in the fifth sub - housing 302.

[0357] The control module 40 and the battery device 10 located in the second housing 30 are arranged along the length direction X of the first housing, and the control module 40 is located at the end of the second housing 30 along the length direction X of the first housing.

[0358] In the above solution, by arranging the control module 40 on one side of the second housing 30 along the length direction X of the first housing, the convenience of installation and maintenance of the control module 40 can be further improved.

[0359] According to some embodiments of the present application, Figure 10 , Figure 11 , Figures 13-16 , the energy storage system 100 includes a power distribution module 401 and a fire control module 402. The control module 40 and the fire control module 402 are electrically connected to the power distribution module 401; both the power distribution module 401 and the fire control module 402 are accommodated in the fifth sub - housing 302.

[0360] In the above solution, by arranging the power distribution module 401 and the fire control module 402 in the fifth sub - housing 302, the heights of the power distribution module 401 and the fire control module 402 are relatively low, which is convenient for the maintenance and repair of the power distribution module 401 and the fire control module 402.

[0361] According to some embodiments of the present application, please refer to Figure 11 , Figures 13-14 , the energy storage system 100 further includes a current conversion device 60. The current conversion device 60 is electrically connected to the battery device 10; the current conversion device 60 includes a second current converter 602 arranged in the second housing 30. The second current converter 602 is electrically connected to the battery device 10 located in the second housing 30, and the second current converter 602 is accommodated in the fourth sub - housing 301.

[0362] The second housing 30 includes a plurality of second battery clusters, and each second battery cluster is correspondingly electrically connected to a second current converter 602. The second current converter 602 and the battery device 10 accommodated in the second housing 30 are both accommodated in the fourth sub - housing 301. It can be that the second current converter 602 is located on the top of the battery device 10 accommodated in the second housing 30; it can also be that the second current converter 602 is located at the bottom of the battery device 10 accommodated in the second housing 30; it can also be that the second current converter 602 and the battery device 10 accommodated in the second housing 30 are arranged along the length direction X of the first housing.

[0363] In the above solution, the fourth sub - warehouse 301 houses the second converter 602 and the battery device 10, which can reduce the space waste of the fourth sub - warehouse 301 and improve the space utilization rate of the fourth sub - warehouse 301. In addition, arranging the second converter 602 and the battery device 10 in the same sub - warehouse facilitates the wiring connection between the two, which is beneficial to improving the installation and maintenance convenience of the energy storage system 100.

[0364] According to some embodiments of the present application, please refer to Figure 10 and Figure 16 , the energy storage system 100 further includes a conversion device 60, and the conversion device 60 is electrically connected to the battery device 10; the conversion device 60 includes a second converter 602 disposed in the second housing 30, the second converter 602 is electrically connected to the battery device 10 located in the second housing 30, and the second converter 602 is accommodated in the fifth sub - warehouse 302.

[0365] Both the second converter 602 and the control module 40 are accommodated in the fifth sub - warehouse 302, and the second converter 602 can be located on the top, bottom or side of the control module 40.

[0366] In the above solution, the second converter 602 is accommodated in the fifth sub - warehouse 302, which is convenient for the maintenance of the second converter 602. According to some embodiments of the present application, please refer to Figures 1-17 , the dimensions of the first housing 20 and the second housing 30 along their length direction X are the same as the dimensions of the length direction X of a standard container, and the dimensions of the first housing 20 and the second housing 30 along their width direction Y are the same as the dimensions of the width direction Y of a standard container.

[0367] The first housing 20 is a box - type structure with the same length and width as a standard container. The second housing 30 is a box - type structure with the same length and width as a standard container.

[0368] In the above solution, the floor areas of the first housing 20 and the second housing 30 are the same as that of a standard container, which can reduce the transportation difficulty of the first housing 20 and the second housing 30 and reduce the transportation cost.

[0369] According to some embodiments of the present application, please refer to Figures 1-17 , the total energy of the energy storage system 100 is 9MWh - 11MWh.

[0370] The total energy of the energy storage system 100 can be the point value of any one of 9 MWh, 9.1 MWh, 9.2 MWh, 9.3 MWh, 9.4 MWh, 9.5 MWh, 9.6 MWh, 9.7 MWh, 9.8 MWh, 9.9 MWh, 10 MWh, 10.1 MWh, 10.2 MWh, 10.3 MWh, 10.4 MWh, 10.5 MWh, 10.6 MWh, 10.7 MWh, 10.8 MWh, 10.9 MWh, 11 MWh or the point value between any two of them.

[0371] In the above solution, the energy storage system 100 can have a relatively high energy.

[0372] According to some embodiments of the present application, please refer to Figures 1-17 , the total weight of the first bin 20 and the components disposed in the first bin 20 is less than or equal to 36 tons; and / or, the total weight of the second bin 30 and the components disposed in the second bin 30 is less than or equal to 36 tons.

[0373] The total weight of the first bin 20 and the components disposed in the first bin 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.

[0374] In the above solution, the energy storage system 100 can be adapted to most regular sea transports, improving the transport convenience of the energy storage system 100.

[0375] According to some embodiments of the present application, please refer to Figures 1-17 , the battery cell 1 is a laminated battery cell.

[0376] In the above solution, the laminated battery cell has a relatively high energy density. Setting the battery cell 1 of the energy storage system 100 as a laminated battery cell can enable the energy storage system 100 to have a relatively large energy in a limited space. According to some embodiments of the present application, please refer to Figures 1-15 , the sum of the dimension of the first bin 20 in the height direction Z and the dimension of the second bin 30 in the height direction Z is greater than or equal to the dimension of a standard container in the height direction Z.

[0377] Exemplarily, the standard container is a 20-foot standard container, the height of the standard container is 2896 mm, and the sum of the dimension of the first bin 20 in the height direction Z and the dimension of the second bin 30 in the height direction Z is greater than or equal to 2896 mm.

[0378] In the above solution, the first bin 20 and the second bin 30 can have more space in the height direction Z, which is beneficial to arranging more battery devices 10 in the first bin 20 and the second bin 30 along the height direction Z, thereby improving the volumetric energy density of the energy storage system 100.

[0379] According to some embodiments of the present application, please refer to Figures 1-17 , the standard container is a 20-foot standard container.

[0380] In the above solution, the 20-foot standard container can meet the requirements of most regular sea shipments. The first bin 20 and the second bin 30 are designed with reference to the 20-foot standard container, which is beneficial to making the energy storage system 100 have better transportation convenience.

[0381] According to some embodiments of the present application, please refer to Figures 1-4, an embodiment of the present application provides an energy storage system 100, which includes a first bin 20, a second bin 30, a control module 40, and a plurality of battery devices 10. A plurality of battery devices 10 are accommodated in both the first bin 20 and the second bin 30. The first bin 20 and the second bin 30 are stacked along the height direction Z, the first bin 20 is located above the second bin 30, and the dimensions of the first bin 20 and the second bin 30 along the height direction Z are both smaller than the dimension of a 20-foot standard container along the height direction Z. The dimensions of the first bin 20 and the second bin 30 along the height direction Z are both smaller than 2896 mm. The control module 40 is used to perform electrical control on the plurality of battery devices 10 in the first bin 20 and the second bin 30, and at least one of the first bin and the second bin accommodates the control module. Wherein, each battery device 10 includes a plurality of battery cells 1, and the battery cells 1 are laminated battery cells. Each battery cell 1 includes a housing 11 and electrode terminals 12. The length direction X of the housing 11 is parallel to the length direction X of the first bin. Along the length direction X of the first bin, the electrode terminals 12 are arranged at at least one end of the housing 11; along the length direction X of the first bin, the dimension of the housing 11 is 465 mm - 525 mm, along the width direction Y of the first bin, the dimension of the housing 11 is 49 mm - 60 mm, and along the height direction Z, the dimension of the housing 11 is 163 mm - 184 mm. The battery device 10 includes two battery cell assemblies 1a arranged along the length direction X of the first bin, and each battery cell assembly 1a includes a plurality of battery cells 1 arranged along the width direction Y of the first bin. The electrode terminals 12 of the battery cells 1 in one battery cell assembly 1a are arranged back-to-back with the electrode terminals 12 of the battery cells 1 in the other battery cell assembly 1a. The electrode terminals 12 include a positive terminal and a negative terminal, and the positive terminal and the negative terminal are arranged at the same end of the housing 11 in the length direction of the housing 11. The battery cell 1 further includes a pressure relief mechanism 4, and the pressure relief mechanism 4 is arranged on the housing 11. In the length direction of the housing 11, the pressure relief mechanism 4 and the electrode terminals 12 are respectively located at opposite ends of the housing 11.

[0382] According to some embodiments of the present application, please refer to Figure 10 and Figure 16, an embodiment of the present application provides an energy storage system 100, which includes a first bin 20, a second bin 30, a control module 40, and a plurality of battery devices 10. A plurality of battery devices 10 are accommodated in both the first bin 20 and the second bin 30. The first bin 20 and the second bin 30 are stacked along the height direction Z, and the first bin 20 is located above the second bin 30. The control module 40 is configured to perform electrical control on the plurality of battery devices 10 in the first bin 20 and the second bin 30. The dimensions of the first bin 20 and the second bin 30 along their length direction X are both the same as the dimensions of the length direction X of a 20-foot standard container. The dimensions of the first bin 20 and the second bin 30 along their width direction Y are both the same as the dimensions of the width direction Y of a 20-foot standard container. The dimension of the first bin 20 along the height direction Z and the dimension of the second bin 30 along the height direction Z are both greater than half of the dimension of a 20-foot standard container along the height direction Z. The dimension of the first bin 20 along the height direction Z and the dimension of the second bin 30 along the height direction Z are both less than the dimension of a 20-foot standard container along the height direction Z. The dimension of the first bin 20 along the height direction Z and the dimension of the second bin 30 along the height direction Z are both less than 2896 mm. The battery devices 10 in the first bin 20 are arranged in 9 rows and 4 columns, and the battery devices 10 in the second bin 30 are arranged in 9 rows and 4 columns. The plurality of battery devices 10 in each row are arranged along the length direction X of the first bin, and the plurality of battery devices 10 in each column are arranged along the height direction Z. The dimension of the first bin 20 along the height direction Z is greater than the dimension of the second bin 30 along the height direction Z. The first bin 20 includes a first sub-bin 201 and a second sub-bin 202. The first bin 20 has a first isolation layer 204 that separates the first sub-bin 201 and the second sub-bin 202. The first sub-bin 201 is located above the second sub-bin 202. The entire thermal management module 50 is accommodated in the first sub-bin 201, and the battery devices 10 located in the first bin 20 are accommodated in the second sub-bin 202. The first bin 20 further includes a third sub-bin 203. The first isolation layer 204 also separates the first sub-bin 201 and the third sub-bin 203. The first sub-bin 201 is located above the third sub-bin 203. The first bin 20 has a second isolation layer 205 that separates the second sub-bin 202 and the third sub-bin 203. The second sub-bin 202 and the third sub-bin 203 are arranged along the length direction X of the first bin, and the first inverter 601 is accommodated in the third sub-bin 203.The battery device 10 includes a thermal management component 3. The thermal management module 50 further includes a pumping device 502, a heat exchanger 503, a compressor 504, and a throttling device 505. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first chamber 20 are sequentially connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second chamber 30 are sequentially connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509. The fan 506, the condenser 501, the heat exchanger 503, the pumping device 502, the compressor 504, and the throttling device 505 are all accommodated in the first sub-chamber 201. The second chamber 30 includes a fourth sub-chamber 301 and a fifth sub-chamber 302. The second chamber 30 has a third isolation layer 303 that separates the fourth sub-chamber 301 and the fifth sub-chamber 302. The fourth sub-chamber 301 and the fifth sub-chamber 302 are arranged along the length direction X of the first chamber. The battery device 10 located in the second chamber 30 is accommodated in the fourth sub-chamber 301. The control module 40 and the fire control module 402 are both electrically connected to the power distribution module 401. The control module 40, the power distribution module 401, and the fire control module 402 are all accommodated in the fifth sub-chamber 302. The energy storage system 100 further includes a power conversion device 60. The power conversion device 60 is electrically connected to the battery device 10. The power conversion device 60 includes a second converter 602 disposed in the second chamber 30. The second converter 602 is electrically connected to the battery device 10 located in the second chamber 30, and the second converter 602 is accommodated in the fifth sub-chamber 302.

[0383] According to some embodiments of the present application, please refer to Figure 11 and Figure 15, an embodiment of the present application provides an energy storage system 100, which includes a first bin 20, a second bin 30, a control module 40, and multiple battery devices 10. A plurality of battery devices 10 are accommodated in both the first bin 20 and the second bin 30. The first bin 20 and the second bin 30 are stacked along the height direction Z, and the first bin 20 is located above the second bin 30. The control module 40 is used to electrically control the multiple battery devices 10 in the first bin 20 and the second bin 30. The dimensions of the first bin 20 and the second bin 30 along their length direction X are the same as the dimensions of the length direction X of a 20-foot standard container. The dimensions of the first bin 20 and the second bin 30 along their width direction Y are the same as the dimensions of the width direction Y of a 20-foot standard container. The dimension of the first bin 20 along the height direction Z and the dimension of the second bin 30 along the height direction Z are both greater than half of the dimension of a 20-foot standard container along the height direction Z. The dimension of the first bin 20 along the height direction Z and the dimension of the second bin 30 along the height direction Z are both less than the dimension of a 20-foot standard container along the height direction Z. The dimension of the first bin 20 along the height direction Z and the dimension of the second bin 30 along the height direction Z are both less than 2896 mm. The battery devices 10 in the first bin 20 are arranged in 9 rows and 4 columns, and the battery devices 10 in the second bin 30 are arranged in 9 rows and 4 columns. The multiple battery devices 10 in each row are arranged along the length direction X of the first bin, and the multiple battery devices 10 in each column are arranged along the height direction Z. The dimension of the first bin 20 along the height direction Z is greater than the dimension of the second bin 30 along the height direction Z. The first bin 20 includes a first sub-bin 201 and a second sub-bin 202. The first bin 20 has a first isolation layer 204 that separates the first sub-bin 201 and the second sub-bin 202. The first sub-bin 201 is located above the second sub-bin 202, and the battery devices 10 located in the first bin 20 are accommodated in the second sub-bin 202. The first bin 20 further includes a third sub-bin 203. The first isolation layer 204 also separates the first sub-bin 201 and the third sub-bin 203. The first sub-bin 201 is located above the third sub-bin 203. The first bin 20 has a second isolation layer 205 that separates the second sub-bin 202 and the third sub-bin 203. The second sub-bin 202 and the third sub-bin 203 are arranged along the length direction X of the first bin, and the first inverter 601 is accommodated in the second sub-bin 202.The battery device 10 includes a thermal management component 3. The thermal management module 50 further includes a pumping device 502, a heat exchanger 503, a compressor 504, and a throttling device 505. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first chamber 20 are sequentially connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second chamber 30 are sequentially connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509. The fan 506, the condenser 501, and the heat exchanger 503 are accommodated in the first sub-chamber 201. The pumping device 502, the compressor 504, and the throttling device 505 are accommodated in the third sub-chamber 203. The second chamber 30 includes a fourth sub-chamber 301 and a fifth sub-chamber 302. The second chamber 30 has a third isolation layer 303 that separates the fourth sub-chamber 301 and the fifth sub-chamber 302. The fourth sub-chamber 301 and the fifth sub-chamber 302 are arranged along the length direction X of the first chamber. The battery device 10 located in the second chamber 30 is accommodated in the fourth sub-chamber 301. The control module 40 and the fire control module 402 are both electrically connected to the power distribution module 401. The control module 40, the power distribution module 401, and the fire control module 402 are all accommodated in the fifth sub-chamber 302. The energy storage system 100 further includes a power conversion device 60. The power conversion device 60 is electrically connected to the battery device 10. The power conversion device 60 includes a second converter 602 disposed in the second chamber 30. The second converter 602 is electrically connected to the battery device 10 located in the second chamber 30. The second converter 602 is accommodated in the fourth sub-chamber 301.

[0384] According to some embodiments of the present application, please refer to Figure 13 and Figure 15, an embodiment of the present application provides an energy storage system 100, which includes a first bin 20, a second bin 30, a control module 40, and a plurality of battery devices 10. A plurality of battery devices 10 are accommodated in both the first bin 20 and the second bin 30. The first bin 20 and the second bin 30 are stacked along the height direction Z, and the first bin 20 is located above the second bin 30. The control module 40 is used to electrically control the plurality of battery devices 10 in the first bin 20 and the second bin 30. The dimensions of the first bin 20 and the second bin 30 along their length direction X are both the same as the dimensions of the length direction X of a 20-foot standard container. The dimensions of the first bin 20 and the second bin 30 along their width direction Y are both the same as the dimensions of the width direction Y of a 20-foot standard container. The dimension of the first bin 20 along the height direction Z and the dimension of the second bin 30 along the height direction Z are both greater than half of the dimension of a 20-foot standard container along the height direction Z. The dimension of the first bin 20 along the height direction Z and the dimension of the second bin 30 along the height direction Z are both less than the dimension of a 20-foot standard container along the height direction Z. The dimension of the second bin 30 along the height direction Z is less than 2896 mm. The battery devices 10 in the first bin 20 are arranged in 12 rows and 3 columns, and the battery devices 10 in the second bin 30 are arranged in 9 rows and 4 columns. The plurality of battery devices 10 in each row are arranged along the length direction X of the first bin, and the plurality of battery devices 10 in each column are arranged along the height direction Z. The dimension of the first bin 20 along the height direction Z is greater than the dimension of the second bin 30 along the height direction Z. The first bin 20 includes a first sub-bin 201 and a second sub-bin 202. The first bin 20 has a first isolation layer 204, and the first isolation layer 204 separates the first sub-bin 201 and the second sub-bin 202. The first sub-bin 201 is located above the second sub-bin 202, and the battery devices 10 located in the first bin 20 are accommodated in the second sub-bin 202. The first bin 20 further includes a third sub-bin 203, and the first isolation layer 204 also separates the first sub-bin 201 and the third sub-bin 203. The first sub-bin 201 is located above the third sub-bin 203. The first bin 20 has a second isolation layer 205, and the second isolation layer 205 separates the second sub-bin 202 and the second sub-bin 202. The second sub-bin 202 and the third sub-bin 203 are arranged along the length direction X of the first bin, and the first inverter 601 is accommodated in the second sub-bin 202.The battery device 10 includes a thermal management component 3. The thermal management module 50 further includes a pumping device 502, a heat exchanger 503, a compressor 504, and a throttling device 505. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the first housing 20 are sequentially connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the thermal management component 3 located in the second housing 30 are sequentially connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509. The fan 506, the condenser 501, the heat exchanger 503, the pumping device 502, the compressor 504, and the throttling device 505 are all accommodated in the third sub-housing 203. The second housing 30 includes a fourth sub-housing 301 and a fifth sub-housing 302. The second housing 30 has a third isolation layer 303 that separates the fourth sub-housing 301 and the fifth sub-housing 302. The fourth sub-housing 301 and the fifth sub-housing 302 are arranged along the length direction X of the first housing. The battery device 10 located in the second housing 30 is accommodated in the fourth sub-housing 301. The control module 40 and the fire control module 402 are both electrically connected to the power distribution module 401. The control module 40, the power distribution module 401, and the fire control module 402 are all accommodated in the fifth sub-housing 302. The energy storage system 100 further includes a power conversion device 60. The power conversion device 60 is electrically connected to the battery device 10. The power conversion device 60 includes a second converter 602 disposed in the second housing 30. The second converter 602 is electrically connected to the battery device 10 located in the second housing 30, and the second converter 602 is accommodated in the fourth sub-housing 301.

[0385] According to some embodiments of the present application, please refer to Figure 17 , the embodiments of the present application provide an energy storage system 100. The energy storage system 100 includes a first housing 20, a second housing 30, a control module 40, and a plurality of battery devices 10. A plurality of battery devices 10 are accommodated in both the first housing 20 and the second housing 30. The first housing 20 and the second housing 30 are stacked along the height direction Z, and the first housing 20 is located above the second housing 30. The control module 40 is used to perform electrical control on the plurality of battery devices 10 in the first housing 20 and the second housing 30. The dimensions of the first housing 20 and the second housing 30 along their length direction X are both the same as the dimensions of the length direction X of a 20-foot standard container. The dimensions of the first housing 20 and the second housing 30 along their width direction Y are both the same as the dimensions of the width direction Y of a 20-foot standard container. The dimension of the first housing 20 along the height direction Z and the dimension of the second housing 30 along the height direction Z are both greater than half of the dimension of a 20-foot standard container along the height direction Z. The dimension of the first housing 20 along the height direction Z and the dimension of the second housing 30 along the height direction Z are both less than the dimension of a 20-foot standard container along the height direction Z.

[0386] The battery devices 10 in the first housing 20 are arranged in 9 rows and 4 columns, and the battery devices 10 in the second housing 30 are arranged in 9 rows and 4 columns. The multiple battery devices 10 in each row are arranged along the length direction X of the first housing, and the multiple battery devices 10 in each column are arranged along the height direction Z. The first housing 20 includes a first sub-housing 201 and a second sub-housing 202. The first housing 20 has a first isolation layer 204 that separates the first sub-housing 201 and the second sub-housing 202. The first sub-housing 201 is located above the second sub-housing 202. The entire heat management module 50 is accommodated in the first sub-housing 201, and the battery devices 10 located in the first housing 20 are accommodated in the second sub-housing 202. The first housing 20 further includes a third sub-housing 203. The first isolation layer 204 also separates the first sub-housing 201 and the third sub-housing 203. The first sub-housing 201 is located above the third sub-housing 203. The first housing 20 has a second isolation layer 205 that separates the second sub-housing 202 and the third sub-housing 203. The second sub-housing 202 and the third sub-housing 203 are arranged along the length direction X of the first housing. The first inverter 601 is accommodated in the third sub-housing 203. The dimension of the first housing 20 along the height direction Z and the dimension of the second housing 30 along the height direction Z are both less than 2896 mm. The energy storage system 100 further includes a third housing 80. The battery device 10 includes a heat management component 3. The heat management module 50 further includes a pumping device 502, a heat exchanger 503, a compressor 504, and a throttling device 505. The pumping device 502, the heat exchanger 503, and the heat management component 3 located in the first housing 20 are sequentially connected to form a first coolant circulation loop. The pumping device 502, the heat exchanger 503, and the heat management component 3 located in the second housing 30 are sequentially connected to form a second coolant circulation loop. The compressor 504, the condenser 501, the throttling device 505, and the heat exchanger 503 are sequentially connected to form a refrigerant circulation loop 509. The fan 506, the condenser 501, the heat exchanger 503, the pumping device 502, the compressor 504, and the throttling device 505 are all accommodated in the third housing 80. The second housing 30 includes a fourth sub-housing 301 and a fifth sub-housing 302. The second housing 30 has a third isolation layer 303 that separates the fourth sub-housing 301 and the fifth sub-housing 302. The fourth sub-housing 301 and the fifth sub-housing 302 are arranged along the length direction X of the first housing. The battery devices 10 located in the second housing 30 are accommodated in the fourth sub-housing 301, and the fire control module 402 is accommodated in the fifth sub-housing 302. The power distribution module 401 is accommodated in the third housing 80. The energy storage system 100 further includes a current conversion device 60, and the current conversion device 60 is electrically connected to the battery device 10. The current conversion device 60 includes a second inverter 602 disposed in the second housing 30. The second inverter 602 is electrically connected to the battery devices 10 located in the second housing 30, and the second inverter 602 is accommodated in the fifth sub-housing 302.

[0387] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be covered within the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An energy storage system, characterized in that, Comprising: A plurality of battery devices; A first compartment and a second compartment, wherein a plurality of the battery devices are accommodated in both the first compartment and the second compartment, the first compartment and the second compartment are stacked in the height direction, the first compartment is located above the second compartment, and at least one of the first compartment and the second compartment has a dimension in the height direction smaller than the dimension of a standard container in the height direction; A control module for electrically controlling the plurality of battery devices in the first compartment and the second compartment, and at least one of the first compartment and the second compartment accommodates the control module; Wherein each battery device includes a plurality of battery cells, each battery cell includes a housing and electrode terminals, the width and height of the housing are both smaller than the length of the housing, and the plurality of battery cells are arranged in the width direction of the housing to form a battery cell assembly, and along the length direction of the housing, the electrode terminals are provided at at least one end of the housing; The length of the housing is 465 mm - 525 mm, and / or the width of the housing is 49 mm - 60 mm, and / or the height of the housing is 163 mm - 184 mm.

2. The energy storage system according to claim 1, characterized in that The battery device includes two battery cell assemblies arranged along the length direction of the first compartment, and each battery cell assembly includes a plurality of the battery cells arranged along the width direction of the first compartment.

3. The energy storage system according to claim 2, wherein, The electrode terminals of the battery cells in one battery cell assembly are arranged back-to-back with the electrode terminals of the battery cells in the other battery cell assembly.

4. The energy storage system according to claim 2, wherein The electrode terminals include a positive terminal and a negative terminal, and the positive terminal and the negative terminal are provided at the same end of the housing in the length direction of the housing.

5. The energy storage system according to claim 2, wherein The battery cell further includes a pressure relief mechanism, the pressure relief mechanism is provided on the housing, and in the length direction of the housing, the pressure relief mechanism and the electrode terminals are respectively located at opposite ends of the housing.

6. The energy storage system according to claim 2, wherein The two battery cell assemblies are connected in series, each battery cell assembly includes 33 - 36 battery cells, and 33 - 36 battery cells are connected in series.

7. The energy storage system according to claim 6, wherein Each battery cell assembly includes 34 battery cells, or each battery cell assembly includes 35 battery cells.

8. The energy storage system according to any one of claims 1-7, characterized in that, The length of the housing is the dimension of the housing along the length direction of the first compartment, the width of the housing is the dimension of the housing along the width direction of the first compartment, the height of the housing is the dimension of the housing along the height direction, the dimension of the first compartment in the length direction is greater than the dimension of the first compartment in the width direction, and the plurality of battery cells are arranged in the width direction of the first compartment to form a battery cell assembly, and the electrode terminals are provided at at least one end of the housing along the length direction of the first compartment.

9. The energy storage system according to any one of claims 1-7, characterized in that, The number of battery devices in the first compartment is equal to the number of battery devices in the second compartment.

10. The energy storage system according to any one of claims 1-7, characterized in that, The number of battery devices in the first compartment is 36, and / or the number of battery devices in the second compartment is 36.

11. The energy storage system according to any one of claims 1-7, characterized in that, The battery devices in the first bin are arranged in 9 rows and 4 columns. A plurality of the battery devices in each row are arranged along the length direction of the first bin, and a plurality of the battery devices in each column are arranged along the height direction of the first bin; and / or, the battery devices in the second bin are arranged in 9 rows and 4 columns. A plurality of the battery devices in each row are arranged along the length direction of the first bin, and a plurality of the battery devices in each column are arranged along the height direction of the first bin.

12. The energy storage system according to claim 11, wherein, The dimension of the first bin along the height direction and the dimension of the second bin along the height direction are both smaller than the dimension of the standard container along the height direction.

13. The energy storage system according to claim 11, wherein The dimension of the first bin along the height direction and the dimension of the second bin along the height direction are both greater than half of the dimension of the standard container along the height direction.

14. The energy storage system according to any one of claims 1-7, characterized in that, The battery devices in the first bin are arranged in 12 rows and 3 columns. A plurality of the battery devices in each row are arranged along the length direction of the first bin, and a plurality of the battery devices in each column are arranged along the height direction; and / or, the battery devices in the second bin are arranged in 9 rows and 4 columns. A plurality of the battery devices in each row are arranged along the length direction of the first bin, and a plurality of the battery devices in each column are arranged along the height direction of the first bin.

15. The energy storage system according to claim 14, wherein, The dimension of the first bin along the height direction is greater than the dimension of the standard container along the height direction; the dimension of the second bin along the height direction is smaller than the dimension of the standard container along the height direction.

16. The energy storage system according to any one of claims 1-7, characterized in that, The number of the battery devices in the first bin is 30, and / or, the number of the battery devices in the second bin is 30.

17. The energy storage system according to claim 16, wherein, The battery devices in the first bin are arranged in 10 rows and 3 columns. A plurality of the battery devices in each row are arranged along the length direction of the first bin, and a plurality of the battery devices in each column are arranged along the height direction of the first bin; and / or, the battery devices in the second bin are arranged in 10 rows and 3 columns. A plurality of the battery devices in each row are arranged along the length direction of the first bin, and a plurality of the battery devices in each column are arranged along the height direction of the first bin.

18. The energy storage system according to any one of claims 1-7, characterized in that, The energy storage system further includes a current conversion device. The current conversion device includes a first current converter. A plurality of the battery devices located in the first bin include a plurality of first battery clusters, and the first current converter is electrically connected to at least one of the first battery clusters; and / or, the energy storage system further includes a current conversion device. The current conversion device includes a second current converter. A plurality of the battery devices located in the second bin include a plurality of second battery clusters, and the second current converter is electrically connected to at least one of the second battery clusters.

19. The energy storage system according to claim 18, characterized in that, The energy storage system further includes a first sub-control module. The first sub-control module includes a first control part and a second control part. The first current converter is electrically connected to at least one of the first battery clusters through the first control part, and the second control part is communicatively connected to the control module and the battery monitoring unit of the battery devices located in the first bin; And / or, the energy storage system further includes a second sub-control module, which includes a third control part and a fourth control part. The second inverter is electrically connected to at least one of the second battery clusters through the third control part, and 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.

20. The energy storage system according to claim 19, wherein, The first inverter and the first control part are integrated into one body; And / or, the second inverter and the third control part are integrated into one body.

21. The energy storage system according to claim 18, wherein One first inverter is correspondingly provided for each first battery cluster, and one second inverter is correspondingly provided for each second battery cluster.

22. The energy storage system according to claim 18, wherein Each first battery cluster includes six of the battery devices connected in series; and / or, each second battery cluster includes six of the battery devices connected in series.

23. The energy storage system according to claim 22, characterized in that, The maximum operating voltage of the first inverter is 1500V; and / or, the maximum operating voltage of the second inverter is 1500V.

24. The energy storage system according to any one of claims 1-7, characterized in that, The energy storage system further includes a thermal management module, which is used for thermal management of the multiple battery devices in the first compartment and the second compartment; At least a part of the thermal management module is accommodated in the first compartment.

25. The energy storage system according to claim 24, wherein The dimension of the first compartment in the height direction is larger than that of the second compartment in the height direction.

26. The energy storage system according to claim 24, wherein The entire thermal management module is accommodated in the first compartment.

27. The energy storage system according to claim 26, wherein The first compartment includes a first sub-compartment and a second sub-compartment. The first compartment has a first isolation layer that separates the first sub-compartment and the second sub-compartment. The first sub-compartment is located above the second sub-compartment. The entire thermal management module is accommodated in the first sub-compartment, and the battery devices located in the first compartment are accommodated in the second sub-compartment.

28. The energy storage system according to claim 27, wherein The energy storage system further includes a current conversion device, which includes a first inverter disposed in the first compartment. The first inverter is electrically connected to the battery devices located in the first compartment; The first compartment further includes a third sub-compartment. The first isolation layer also separates the first sub-compartment and the third sub-compartment. The first sub-compartment is located above the third sub-compartment. The first compartment has a second isolation layer that separates the second sub-compartment and the third sub-compartment. The second sub-compartment and the third sub-compartment are arranged along the length direction of the first compartment, and the first inverter is accommodated in the third sub-compartment.

29. The energy storage system according to claim 27, wherein The height of the first compartment is 2700mm - 2900mm, and the height of the second compartment is 2300mm - 2500mm.

30. The energy storage system according to claim 26, wherein The first compartment includes a first sub-compartment and a second sub-compartment. The first compartment has a first isolation layer that separates the first sub-compartment and the second sub-compartment. The second sub-compartment is located below the first sub-compartment, and the battery devices located in the first compartment are accommodated in the second sub-compartment; The thermal management module includes a fan and a condenser. The fan is used to dissipate heat for the condenser. The fan and the condenser are located in the first sub-compartment, and ventilation openings are provided at the top and side of the first sub-compartment.

31. The energy storage system according to claim 30, characterized in that, The first housing further includes a third sub-housing. The first isolation layer further separates the first sub-housing and the third sub-housing. The first sub-housing is located above the third sub-housing. The first housing has a second isolation layer that separates the second sub-housing and the third sub-housing. The second sub-housing and the third sub-housing are arranged along the length direction of the first housing; The battery device includes a thermal management component. The thermal management module further includes a pumping device, a heat exchanger, a compressor, and a throttling device. The pumping device, the heat exchanger, and the thermal management component located in the first housing are connected to form a first coolant circulation loop. The pumping device, the heat exchanger, and the thermal management component located in the second housing are connected to form a second coolant circulation loop. The compressor, the condenser, the throttling device, and the heat exchanger are connected to form a refrigerant circulation loop. At least one of the heat exchanger, the pumping device, the compressor, and the throttling device is accommodated in the third sub-housing.

32. The energy storage system according to claim 30, wherein The energy storage system further includes a power conversion device. The power conversion device includes a first converter disposed in the first housing. The first converter is electrically connected to a plurality of the battery devices located in the first housing; A plurality of the battery devices and the first converter are accommodated in the second sub-housing, and the first converter is located below the plurality of battery devices.

33. The energy storage system according to claim 30, wherein, The height of the first housing is 2600 mm - 2800 mm, and the height of the second housing is 2300 mm - 2500 mm.

34. The energy storage system according to claim 26, wherein The first housing includes a second sub-housing and a third sub-housing. The first housing has a second isolation layer that separates the second sub-housing and the third sub-housing. The second sub-housing and the third sub-housing are arranged along the length direction of the first housing. A plurality of the battery devices located in the first housing are accommodated in the second sub-housing, and the thermal management module is accommodated in the third sub-housing.

35. The energy storage system according to claim 34, characterized in that The energy storage system further includes a power conversion device. The power conversion device includes a first converter disposed in the first housing. The first converter is electrically connected to a plurality of the battery devices located in the first housing; The first converter is accommodated in the second sub-housing and is located below the plurality of battery devices.

36. The energy storage system according to any one of claims 1-7, characterized in that, The energy storage system further includes a third housing and a thermal management module. The thermal management module is configured to perform thermal management on a plurality of the battery devices in the first housing and the second housing. The third housing and the second housing are arranged along a direction intersecting the height direction; Wherein, the thermal management module is accommodated in the third housing.

37. The energy storage system according to claim 36, wherein The energy storage system further includes a power distribution module. The power distribution module is accommodated in the third housing.

38. The energy storage system according to claim 36, wherein The first housing includes a second sub-housing and a third sub-housing. The first housing has a second isolation layer that separates the second sub-housing and the third sub-housing. The second sub-housing and the third sub-housing are arranged along the length direction of the first housing. The battery devices located in the first housing are accommodated in the second sub-housing; The energy storage system further includes a current conversion device, the current conversion device is electrically connected to the battery device, the current conversion device includes a first current converter disposed in the third sub-compartment, and the first current converter is electrically connected to the battery device located in the first compartment body.

39. The energy storage system according to any one of claims 1-7, characterized in that, The control module is accommodated in the second compartment body.

40. The energy storage system according to claim 39, wherein The second compartment body includes a fourth sub-compartment and a fifth sub-compartment, the second compartment body has a third isolation layer, the third isolation layer separates the fourth sub-compartment and the fifth sub-compartment, and the fourth sub-compartment and the fifth sub-compartment are arranged along the length direction of the first compartment body; The battery device located in the second compartment body is accommodated in the fourth sub-compartment, and the control module is accommodated in the fifth sub-compartment.

41. The energy storage system according to claim 40, wherein The energy storage system further includes a power distribution module and a fire control module, both the control module and the fire control module are electrically connected to the power distribution module; the control module, the power distribution module and the fire control module are all accommodated in the fifth sub-compartment.

42. The energy storage system according to claim 40, wherein The energy storage system further includes a current conversion device, the current conversion device is electrically connected to the battery device; The current conversion device includes a second current converter disposed in the second compartment body, the second current converter is electrically connected to the battery device located in the second compartment body, and the second current converter is accommodated in the fourth sub-compartment.

43. The energy storage system according to claim 40, characterized in that, The energy storage system further includes a current conversion device, the current conversion device is electrically connected to the battery device; The current conversion device includes a second current converter disposed in the second compartment body, the second current converter is electrically connected to the battery device located in the second compartment body, and the second current converter is accommodated in the fifth sub-compartment.

44. The energy storage system according to any one of claims 1-7, characterized in that, The dimensions of the first compartment body and the second compartment body along their length directions are both consistent with the dimensions of the length direction of a standard container, and the dimensions of the first compartment body and the second compartment body along their width directions are both consistent with the dimensions of the width direction of the standard container.

45. The energy storage system according to any one of claims 1-7, characterized in that, The energy of the energy storage system is 9 MWh - 11 MWh.

46. The energy storage system according to any one of claims 1-7, characterized in that, The total weight of the first compartment body and the components disposed in the first compartment body is less than or equal to 36 tons; and / or, the total weight of the second compartment body and the components disposed in the second compartment body is less than or equal to 36 tons.

47. The energy storage system according to any one of claims 1-7, characterized in that, The battery cell is a laminated battery cell.

48. The energy storage system according to any one of claims 1-7, characterized in that, The sum of the dimensions of the first compartment body along the height direction and the dimensions of the second compartment body along the height direction is greater than or equal to the dimensions of a standard container along the height direction.

49. The energy storage system according to any one of claims 1-7, characterized in that, The standard container is a 20-foot standard container.

Images