Energy storage apparatus, energy storage system and charging network

Abstract

Provided in the embodiments of the present application are an energy storage apparatus, an energy storage system and a charging network. The energy storage apparatus comprises a container, a control module and a thermal management module, wherein the container comprises a container body and a plurality of battery cells, the plurality of battery cells are accommodated in the container body, and at least one of the dimensions of the container in the length direction, the width direction and the height direction is not equal to a corresponding dimension of a standard container; the control module is used for electrically connecting to the plurality of battery cells to perform electrical control over the battery cells; and the thermal management module is connected to the container, the thermal management module is used for managing the temperature of the battery cells, and at least part of the thermal management module is located at the top of the container. When the total energy of a container is fixed, the container can have a smaller volume, such that an energy storage apparatus occupies a smaller floor area, thereby increasing energy per unit floor area of the energy storage apparatus, and thus increasing the areal energy density of the energy storage apparatus.

Description

[Amended according to Rule 26 30.08.2024] Energy storage device, energy storage system and charging network

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application Patent 202420710832.1 entitled "Energy Storage Container" filed on April 08, 2024, Chinese Patent Application Patent 202420714123.0 entitled "Energy Storage Container" filed on April 08, 2024, International Application Patent PCT / CN2024 / 086624 entitled "Energy Storage Container" filed on April 08, 2024, International Application Patent PCT / CN2024 / 086600 entitled "Energy Storage Container" filed on April 08, 2024, International Application Patent PCT / CN2024 / 104575 entitled "Container, Energy Storage Device, Energy Storage Equipment, Energy Storage System and Charging Network" filed on July 09, 2024, and International Application Patent PCT / CN2024 / 106588 entitled "Container, Energy Storage Device, Energy Storage System and Charging Network" filed on July 19, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of batteries, in particular to an energy storage device, an energy storage system and a charging network. BACKGROUND

[0004] With the rapid development of science and technology, electric energy has become an indispensable energy in people's production and life. In order to improve the smoothness of electric energy supply and realize the normal operation of production and life, an energy storage device needs to be used. As a device for cyclically storing and releasing electric energy, the energy storage device stores electric energy in the energy storage device through charging or discharging of the energy storage device, or supplies the electric energy stored in the energy storage device to an electric device. The energy storage device 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 station fields.

[0005] In the development of energy storage devices, in addition to improving the performance of energy storage devices, how to improve the area energy density of energy storage devices is also a problem that cannot be ignored. Therefore, how to improve the area energy density of energy storage devices is a continuous improvement technical problem in energy storage technology.

[0006] SUMMARY

[0007] The present application provides an energy storage device, an energy storage system and a charging network, which can improve the area energy density of the energy storage device.

[0008] In a first aspect, an embodiment of the present application provides an energy storage device, comprising a container, a control module and a thermal management module. The container comprises a box body and a plurality of battery monomers. The plurality of battery monomers are accommodated in the box body. At least one of the length, the width and the height of the container corresponds to the size of a standard container. The control module is electrically connected to the plurality of battery monomers to electrically control the battery monomers. The thermal management module is connected to the container and is used to manage the temperature of the battery monomers. At least part of the thermal management module is located on the top of the container.

[0009] In the above technical solution, at least part of the thermal management module is located on the top of the container. At least part of the thermal management module can share a part of the floor area with the container. When the total energy of the container is constant, the container can have a smaller volume, so that the energy storage device occupies a smaller floor area, thereby improving the energy per unit floor area of the energy storage device and realizing the improvement of the area energy density of the energy storage device.

[0010] The thermal management module located on the top of the container is located outside the container, which can save the size of the container and improve the energy density per unit area of the container.

[0011] In some embodiments, the energy storage device comprises a first compartment, at least part of the thermal management module is accommodated in the first compartment, and the first compartment is located on the top of the container. By arranging the first compartment on the top of the container, the thermal management module accommodated in the first compartment can be centrally controlled, which facilitates the management and transportation of the thermal management module.

[0012] In some embodiments, the container is a plurality of containers, the plurality of containers are arranged along the height direction, and the first compartment is located on the top of the topmost container. By arranging the first compartment on the top of the topmost container, the first compartment can be shared by multiple containers, reducing the risk of temperature imbalance of the container caused by sunlight.

[0013] In some embodiments, the container comprises a plurality of battery devices, each battery device comprises a thermal management component and a plurality of battery monomers; the thermal management module comprises a plurality of thermal management units, at least one of the plurality of thermal management units is accommodated in the first compartment; the plurality of thermal management units comprises a pumping device, a first heat exchanger, a compressor, a second heat exchanger and a throttling device, the pumping device, the first heat exchanger and the thermal management component are connected in sequence to form a cooling liquid circulation loop, the cooling liquid circulation loop is used to cool the battery monomers, the compressor, the second heat exchanger, the throttling device and the first heat exchanger are connected in sequence to form a refrigerant circulation loop, the refrigerant circulation loop is used to cool the cooling liquid passing through the first heat exchanger. The plurality of thermal management units are independent of each other, which reduces the risk of mutual interference between the thermal management module and the battery.

[0014] In some embodiments, the thermal management module is entirely accommodated in the first compartment. In this way, the thermal management module is entirely located on the top of the container, which can make the thermal management module and the container share the floor area, and further save the floor area of the energy storage device.

[0015] In some embodiments, the energy storage device further comprises a second compartment separately arranged from the first compartment, and at least one of the plurality of thermal management units is accommodated in the second compartment. By accommodating at least one of the plurality of thermal management units in the first compartment and accommodating the at least one of the plurality of thermal management units other than the one accommodated in the first compartment in the second compartment, the risk of interference between the thermal management units in the first compartment and the thermal management units in the second compartment can be reduced.

[0016] In some embodiments, the throttling device and the second heat exchanger are located in the first compartment, and the pumping device, the first heat exchanger, and the compressor are located in the second compartment. In this way, the throttling device and the second heat exchanger are located on the top of the container, which is conducive to heat dissipation of the throttling device and the second heat exchanger. Accommodating the pumping device, the first heat exchanger, and the compressor in the second compartment reduces the risk of interference between the throttling device and the second heat exchanger and the pumping device, the first heat exchanger, and the compressor.

[0017] In some embodiments, the second compartment is located in the container. By arranging the second compartment in the container, the thermal management units in the second compartment can control the temperature of the battery cells in the container.

[0018] In some embodiments, the second compartment is separately arranged from the container. By separately arranging the second compartment from the container, the risk of interference between the thermal management units in the second compartment and the container can be reduced.

[0019] In some embodiments, the second compartment is hung on one side of the container along the length direction or the width direction. In this way, the second compartment is more convenient to maintain, and is also conducive to installation and arrangement of the second compartment, reducing the area of the second compartment occupying the ground.

[0020] In some embodiments, the first compartment is provided with a first ventilation opening for ventilating the thermal management module located in the first compartment. In this way, the thermal management module in the first compartment is more convenient to ventilate, and the heat dissipation effect is better.

[0021] In some embodiments, in a projection plane perpendicular to the height direction, the orthographic projection of the first compartment is located in the orthographic projection of the container. In this way, the first compartment does not protrude from the container along the length direction and the width direction, reducing the risk of damage to the first compartment caused by external devices contacting the first compartment.

[0022] In some embodiments, the size of the first bin along the height direction is p1 times of the size of a standard container along the height direction, p1 is a positive integer, 2≤p1≤5. By setting the size of the first bin along the height direction to be p1 times of the size of a standard container along the height direction, when the first bin is placed for transportation, p1 first bins can be stacked along the height direction to occupy the transportation height space of a standard container, thereby facilitating the placement and transportation of the first bin and saving the transportation cost of the first bin.

[0023] In some embodiments, the container comprises a plurality of battery devices, each battery device comprising a thermal management component and a plurality of battery cells; the energy storage device further comprises a first connector in communication with the thermal management module, and the container further comprises a second connector and a thermal management component in communication with the second connector, and the first connector is connected to the second connector through a pipeline. The first connector and the second connector are connected through the pipeline to realize the rapid communication between the thermal management component and the thermal management module, thereby facilitating the rapid installation between the thermal management module and the container.

[0024] In some embodiments, the box body is provided with a recess on one side along the length direction or the width direction, and the second connector is arranged in the recess. By arranging the second connector in the recess, the risk of interference between external components and the second connector can be reduced, and the recess can also reduce the risk of rainwater contacting the second connector and strengthen the protection of the second connector.

[0025] In some embodiments, the first bin has a first locking member, and the top of the container is provided with a second locking member, and the first locking member and the second locking member are used to lock the first bin and the container. By locking the first bin and the container through the first locking member and the second locking member, the positional stability of the first bin is improved.

[0026] In some embodiments, the energy storage device further comprises a third bin, the control module comprises a plurality of control units, and at least one of the plurality of control units is accommodated in the third bin; the plurality of control units comprises a master control module, and the battery cells and the master control module are electrically connected. By arranging at least one of the plurality of control units in the third bin, at least one of the plurality of control units can be transported separately from other control units, thereby reducing the transportation difficulty of the control module and reducing the transportation cost.

[0027] In some embodiments, the plurality of control units further comprises a master control module, a power distribution module and a fire control module, and the master control module, the master control module and the fire control module are electrically connected with the power distribution module. By arranging at least one of the power distribution module, the master control module and the fire control module in the third bin, at least one of the power distribution module, the master control module and the fire control module and other control units can be transported separately, thereby reducing the transportation difficulty of the container and reducing the transportation cost.

[0028] In some embodiments, the control module is accommodated in the third compartment. Accommodating the control module in the third compartment facilitates centralized management of the control module, and the control module and the container are independent of each other, thereby reducing the risk of interference between the control module and the container.

[0029] In some embodiments, the third compartment is located at the top of the container, and the first compartment is located in the third compartment. In this way, the third compartment can protect the first compartment, thereby enhancing the protection of the first compartment and reducing the risk of damage to the first compartment by external forces. The control module and the first compartment are both accommodated in the third compartment, which facilitates management of the control module and the thermal management module in the first compartment.

[0030] In some embodiments, the third compartment further comprises an isolation layer and a fourth compartment, the master control module, the general control module, the fire control module, and the power distribution module are accommodated in the fourth compartment, and the isolation layer is used to separate the first compartment from the fourth compartment. By providing the isolation layer between the first compartment and the fourth compartment, the risk of interference between the thermal management module in the first compartment and the control module in the fourth compartment is reduced.

[0031] In some embodiments, the first compartment has a first locking member, the third compartment has a third locking member, and the first locking member and the third locking member are used to lock the first compartment and the third compartment. By locking the first compartment and the third compartment with the first locking member and the third locking member, the positional stability of the first compartment in the third compartment is improved.

[0032] In some embodiments, the third compartment comprises a third connector electrically connected to the control module, the container comprises a fourth connector electrically connected to the battery cell, and the third connector is used to cooperate with the fourth connector. By cooperating the third connector and the fourth connector, the control module and the battery cell can be quickly connected, making the installation of the third compartment and the container more convenient.

[0033] In some embodiments, the third compartment has a length dimension consistent with a length dimension of a standard container, a width dimension consistent with a width dimension of a standard container, and a height dimension p2 times a height dimension of a standard container, where p2 is a positive integer and 2≤p2≤5. By making the height dimension of the third compartment p2 times the height dimension of a standard container, p2 third compartments can be stacked when being transported, thereby occupying the transportation height space of a standard container, facilitating the placement and transportation of the third compartment, and saving the transportation cost of the third compartment.

[0034] In some embodiments, the third compartment is located in the container. By providing the third compartment in the container, the protection of the third compartment by the container is enhanced.

[0035] In some embodiments, the third container is arranged on one side of the container along the length direction or along the width direction. In this way, the third container is more convenient to maintain, and the installation and placement of the third container are facilitated, and the area occupied by the third container on the ground is reduced.

[0036] In some embodiments, the third container is arranged separately from the container. By arranging the third container separately from the container, the risk of interference between the thermal management unit and the control module in the third container and the container is reduced.

[0037] In some embodiments, the third container is located at the bottom of the container. In this way, the height of the third container is lower, and the control module and the thermal management module in the third container are facilitated to be maintained.

[0038] In some embodiments, the third container comprises a fifth connector electrically connected with the control module, and the container comprises a sixth connector electrically connected with the battery cell, and the fifth connector is configured to cooperate with the sixth connector. By cooperation of the fifth connector and the sixth connector, the control module and the battery cell can be quickly connected, and the installation of the third container and the container is facilitated.

[0039] In some embodiments, the third container is located at the bottom of the container; the size of the third container along the length direction is consistent with the size of the standard container along the length direction, the size of the third container along the width direction is consistent with the size of the standard container along the width direction, and the size of the third container along the height direction multiplied by p3 is equal to the size of the standard container along the height direction, p3 is a positive integer, and 2≤p3≤5. By multiplying the size of the third container along the height direction by p3 to be equal to the size of the standard container along the height direction, when the third container is placed for transportation, p3 third containers can be stacked to occupy the transportation height space of one standard container, so as to facilitate the placement and transportation of the third container and save the transportation cost of the third container.

[0040] In some embodiments, the third container is located at the top of the container, and the first container is located in the third container; the energy storage device further comprises a fourth container arranged separately from the third container, and the master control module is located in the fourth container, and at least one of the power distribution module, the general control module and the fire control module is located in the third container. By arranging at least one of the power distribution module, the general control module and the fire control module and at least part of the thermal management module in the third container, at least one of the power distribution module, the general control module and the fire control module and at least part of the thermal management module are facilitated to be transported separately from the container, the transportation difficulty of the container is reduced, and the transportation cost is reduced. By arranging the master control module in the fourth container, the arrangement of the control module is more flexible, and the risk of interference between the master control module and at least one of the power distribution module, the general control module and the fire control module in the third container is reduced.

[0041] In some embodiments, the third bin has a length dimension consistent with a length dimension of a standard container, a width dimension consistent with a width dimension of the standard container, and a height dimension p4 times a height dimension of the standard container, where p4 is a positive integer and 2≤p4≤5. By having the height dimension of the third bin p4 times the height dimension of the standard container, p4 third bins can be stacked to occupy the height dimension of the standard container when the third bins are placed for transportation, thereby facilitating the placement and transportation of the third bins and saving transportation costs of the third bins.

[0042] In some embodiments, the box includes a battery bin in which battery cells are accommodated, and a fourth bin arranged in the box in a length direction of the battery bin. By arranging the fourth bin in the box, the stability of the connection between the master control module and the battery cells is improved, which facilitates the electrical control of the battery cells by the master control module.

[0043] In some embodiments, the fourth bin is formed at an end of the box in the length direction. By forming the fourth bin at the end of the box, the installation of the fourth bin is facilitated, and the interference of the fourth bin with the battery cells during maintenance is reduced.

[0044] In some embodiments, the battery bin has a first bin door, the fourth bin has a first maintenance door, and the first bin door and the first maintenance door are located on the same side in the width direction. By arranging the first maintenance door on the container, the master control module can be maintained in the width direction, which facilitates the maintenance of the master control module.

[0045] In some embodiments, the master control module is located in the third bin, the third bin includes a seventh connector electrically connected to the master control module, each container includes an eighth connector and a master control module electrically connected to the eighth connector, and the seventh connector is configured to cooperate with each eighth connector. By cooperating the seventh connector and the eighth connector, the master control module and the master control module can be quickly connected, which facilitates the installation between the third bin and the container.

[0046] In some embodiments, the fourth bin is hung on one side of the container in the length direction or in the width direction. In this way, the maintenance of the fourth bin is more convenient, and the installation and placement of the fourth bin are facilitated, thereby reducing the area occupied by the fourth bin on the ground.

[0047] In some embodiments, the fourth bin is placed separately from the container. By placing the fourth bin separately from the container, the risk of interference between the control unit in the fourth bin and the container is reduced.

[0048] In some embodiments, the fourth bin is located at the bottom of the container. In this way, the height of the fourth bin is low, which facilitates the maintenance of the control unit in the fourth bin.

[0049] In some embodiments, the third bin comprises a first top wall and a plurality of first side walls surrounding the first top wall, the first top wall and at least one of the first side walls are provided with a second vent for ventilating the first bin. By providing the second vent on the first top and the first side walls of the third bin, it helps to dissipate heat from the thermal management unit in the first bin, so that the first bin can have a larger heat dissipation area, and improve the temperature control effect of the thermal management module.

[0050] In some embodiments, the container has a size in the width direction consistent with the size of a standard container in the width direction, a size in the height direction consistent with the size of a standard container in the height direction, and a size in the length direction equal to p5 times the size of a standard container in the length direction, where p5 is a positive integer and 2≤p5≤5. By setting the size of the container in the length direction to be p5 times the size of a standard container in the height direction, p5 containers can be stacked and placed in a standard container for transportation, which facilitates the placement and transportation of the container and saves transportation costs.

[0051] In some embodiments, there are a plurality of containers arranged in the height direction, and the third bin is located between two adjacent containers in the height direction. By arranging the third bin between two adjacent containers in the height direction, the control unit in the third bin can be connected to the two containers, shortening the connection path between the control unit and the containers.

[0052] In some embodiments, there are a plurality of containers arranged in the height direction, and the third bin is located on the top of the topmost container. By arranging the third bin on the top of the topmost container, the third bin can cover a plurality of containers, reducing the risk of temperature imbalance of the containers caused by sunlight.

[0053] In some embodiments, there are a plurality of containers arranged in the height direction, and the third bin is located on the bottom of the bottommost container. By arranging the third bin on the bottom of the bottommost container, the third bin is at a lower position, which is conducive to the maintenance of the control unit in the third bin.

[0054] In some embodiments, there are m containers, where m≥2, and the m containers are stacked in the height direction, and at least part of the thermal management module is located on the top of the topmost container. By arranging at least part of the thermal management module on the top of the topmost container, the space occupied by the thermal management module in the container is reduced, and it helps to dissipate heat from the container.

[0055] In some embodiments, the length of the container is the same as that of a standard container, the width of the container is the same as that of a standard container, and the height of the container is smaller than that of a standard container. Such a container can reduce the weight of the container body, and can match conventional transportation and transfer equipment, and meet the transportation requirements of land transportation and / or sea transportation, etc.

[0056] In some embodiments, the sum of the heights of the m1 containers is equal to the sum of the heights of the n standard containers. The length and the width of the container are the same as those of a standard container, so that the horizontal area occupied by the container during transportation is the same as that of a standard container. The heights of the m1 containers are the same as those of the n standard containers, so that the space occupied by the m1 containers during stacking is the same as that occupied by the n standard containers, which improves the utilization of the space for placing the containers, facilitates the full use of the space available in the height direction during transportation, reduces the space waste during transportation of the containers, and reduces the transportation cost of the containers and the energy storage device using the containers, thereby reducing the use cost of the energy storage device.

[0057] In some embodiments, the two adjacent containers are connected by welding, clamping, locking, or a fixing member in the height direction. This facilitates reducing the risk of mutual movement of the two adjacent containers after stacking is completed, thereby improving the structural stability of the energy storage device.

[0058] In some embodiments, the energy storage device further comprises a connecting mechanism configured to connect two adjacent containers in the height direction; wherein the connecting mechanism comprises a support arranged between the two adjacent containers in the height direction; and the sum of the heights of the m1 containers and the sum of the heights of the m1-1 supports is equal to the sum of the heights of the n standard containers.

[0059] The connecting mechanism can make the stacking of the containers more stable. When the containers are transported, the sum of the heights of the m1 containers and the sum of the heights of the m1-1 supports arranged between the two adjacent containers in the m1 containers is equal to the sum of the heights of the n standard containers, which can efficiently utilize the transportation space occupied by the containers and save transportation costs.

[0060] In some embodiments, the heights of a part of the m containers are not equal to the heights of another part of the m containers in the height direction. In this way, the flexibility of the capacity of the containers can be improved to match different requirements.

[0061] In some embodiments, the m containers have equal sizes in the height direction. In this way, the manufacturing process can be simplified and the cost can be reduced.

[0062] In some embodiments, the standard container is a 20-foot standard container, and the height of the standard container is 2896 mm, 2591 mm or 2438 mm.

[0063] In some embodiments, the container comprises a battery compartment and a wire harness compartment, a plurality of battery cells are accommodated in the battery compartment, and the wire harness compartment is arranged in the box body and arranged in the length direction with the battery compartment; the wire harness compartment is provided with an opening, at least part of the connection wire harness between the container and the control module passes through the opening, and / or at least part of the connection wire harness between the container and the thermal management module passes through the opening. By arranging the wire harness compartment, at least part of the connection wire harness between the container and the control module passes through the wire harness compartment, thereby reducing the risk of damage to the connection wire harness between the container and the control module exposed outside the container.

[0064] In some embodiments, the container comprises a plurality of battery devices, the plurality of battery devices are arranged in rows and columns, the plurality of battery devices in each row are arranged in the length direction, and the plurality of battery devices in each column are arranged in the height direction, each battery device comprises a thermal management component and a plurality of battery cells; the container further comprises a main pipeline and a plurality of branch pipelines, the main pipeline communicates the thermal management module and each branch pipeline, and each branch pipeline communicates the thermal management components of the plurality of battery devices in a column. By connecting the thermal management module through the main pipeline, the thermal management module can provide fluid to the main pipeline, and the main pipeline can provide fluid to the plurality of branch pipelines, so that the temperature of the fluid entering the thermal management component is more uniform, thereby reducing the risk of battery temperature runaway.

[0065] In some embodiments, the main pipeline is located in the box body and at the top of the plurality of battery devices. The main pipeline is arranged at the top of the plurality of battery devices, so that the main pipeline is arranged closer to the thermal management module located at the top of the box body, thereby facilitating the thermal management module to control the temperature of the cooling liquid in the main pipeline.

[0066] In some embodiments, the container comprises battery cells arranged in the box body, and the weight of a single battery cell is 5 kg to 60 kg. The weight of the battery cell is appropriate, so that a suitable amount of batteries can be placed in the box body, and the energy density is moderate under the condition of meeting the transportation demand.

[0067] In some embodiments, the weight of the container is M, and M≤35 tons. In the process of hoisting the container, the hoisting of the related hoisting device is facilitated, and the transfer work of the container is facilitated.

[0068] In some embodiments, the weight of the container is M, the total weight of the battery cells in the box is M1, and (M1 / M) x 100% ≥ 60%. In this way, on the one hand, the weight ratio of the battery cells in the container per unit volume can be increased, and the power of the container per unit volume can be increased; on the other hand, during the transportation of the container, more battery cells that contribute to energy storage and have high production difficulty and cannot be produced at the destination are transported, while other structures can be produced at a location close to the destination without transportation or with reduced transportation, and after the container is assembled into an energy storage device, the transportation cost of the assembled energy storage device can be reduced.

[0069] In some embodiments, (M1 / M) x 100% ≥ 80%. In this way, the transportation cost of the assembled energy storage device can be further reduced.

[0070] In some embodiments, the weight of the container is M, the box is provided with a plurality of battery devices, the battery device includes a containing box and a plurality of battery cells, the plurality of battery cells are contained in the containing box, the total weight of the battery device is M2, and 70% ≤ (M2 / M) x 100% ≤ 90%. When (M2 / M) x 100% ≥ 70%, the weight ratio of the battery in the container per unit volume can be increased, and the energy density of the container can be increased; when (M2 / M) x 100% ≤ 90%, the structural strength of the container can be maintained. Therefore, when 70% ≤ (M2 / M) x 100% ≤ 90%, the energy density of the container and the structural strength of the container can be considered, and the practicability of the container is stronger

[0071] In some embodiments, the volume of the container is V, the total volume of the battery cells in the box is V1, and (V1 / V) x 100% ≥ 30%. On the one hand, the volume ratio of the battery cells in the container per unit volume can be increased, and the power of the container per unit volume can be increased; on the other hand, during the transportation of the container, more battery cells that contribute to energy storage and have high production difficulty and cannot be produced at the destination are transported, while other functional elements of the energy storage device such as control elements can be produced at a location close to the destination without transportation or with reduced transportation, and after the container is assembled into an energy storage device, the transportation cost of the assembled energy storage device can be reduced.

[0072] In some embodiments, (V1 / V) x 100% ≥ 50%. The transportation cost of the assembled energy storage device can be further reduced.

[0073] In some embodiments, the volume of the container is V, the container is provided with a plurality of battery devices, the battery device includes a containing box and a plurality of battery cells, the plurality of battery cells are contained in the containing box, the total volume of the battery device is V2, and 50%≤(V2 / V)×100%≤80%. When (V2 / V)×100%≥50%, the volume ratio of the battery in the unit volume of the container can be increased, and the energy density of the container can be improved. When (V2 / V)×100%≤80%, the container has sufficient volume of structural members to maintain the structural strength of the container. Therefore, when 50%≤(V2 / V)×100%≤80%, the energy density of the container and the structural strength of the container can be considered, and the practicability of the container is stronger.

[0074] In some embodiments, the energy of the container is E, the size of the container along the length direction is a, the size of the container along the width direction is b, and 250KW / m2≤E / (a×b)≤700KW / m2. When E / (a×b)≥250KW / m2, the container has a larger energy density, and the practicability of the container is improved. When E / (a×b)≤700KW / m2, the risk of the container being crushed by other containers due to the large mass of the container can be reduced, and the transportation of the container is facilitated. Therefore, when 250KW / m2≤E / (a×b)≤700KW / m2, the energy density of the container and the mass of the container are considered, the practicability of the container is improved, and the transportation of the container is facilitated.

[0075] In some embodiments, 450KW / m2≤E / (a×b)≤600KW / m2. The energy density of the container and the mass of the container can be further improved, and the transportation of the container is facilitated.

[0076] In a second aspect, the embodiments of the present application provide an energy storage system, which includes a power conversion device; and the energy storage device provided in any one of the first aspect. The power conversion device is used to electrically connect the power generation device and the energy storage device.

[0077] In some embodiments, the energy storage system further comprises a transformer electrically connected to the power conversion device, the transformer being configured to be electrically connected to the power grid; the at least two containers are arranged along a length direction; the energy storage device comprises a third compartment, the control module is accommodated in the third compartment, the third compartment is arranged separately from the container, the third compartment, the power conversion device and the transformer are arranged along the length direction, and the total span of the third compartment, the power conversion device and the transformer along the length direction is less than or equal to the total span of two adjacent containers along the length direction. The sum of the size of the third compartment along the length direction, the size of the power conversion device along the length direction and the size of the transformer along the length direction is less than or equal to the sum of the sizes of two standard containers along the length direction. The third compartment, the transformer and the power conversion device can occupy the size of only two standard containers when transported together, thereby reducing transportation cost.

[0078] In some embodiments, the energy storage system further comprises a transformer electrically connected to the power conversion device, the transformer being configured to be electrically connected to the power grid; the at least two containers are arranged along a length direction; the energy storage device comprises a third compartment and a fourth compartment, the third compartment is connected to the container, and the fourth compartment is arranged separately from the container, the fourth compartment, the power conversion device and the transformer are arranged along the length direction, and the total span of the fourth compartment, the power conversion device and the transformer along the length direction is less than or equal to the total span of two adjacent containers along the length direction. The sum of the size of the fourth compartment along the length direction, the size of the power conversion device along the length direction and the size of the transformer along the length direction is less than or equal to the sum of the sizes of two standard containers along the length direction. The fourth compartment, the transformer and the power conversion device can occupy the size of only two standard containers when transported together, thereby reducing transportation cost

[0079] In a third aspect, the embodiments of the present application provide a charging network, comprising a charging pile; and the energy storage device provided by any one of the embodiments of the first aspect, the energy storage device being configured to provide electric energy for the charging pile.

[0080] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear and understandable, the following specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application will be described. BRIEF DESCRIPTION OF DRAWINGS

[0081] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

[0082] FIG. 1 is a structural schematic diagram of a charging network provided by some embodiments of the present application;

[0083] FIG2 is a schematic diagram of the structure of an energy storage system provided in some embodiments of the present application;

[0084] FIG3 is a schematic structural diagram of an energy storage device provided in some embodiments of the present application;

[0085] FIG4 is a schematic structural diagram of a thermal management component provided in some embodiments of the present application;

[0086] FIG5 is a schematic diagram of the structure of the thermal management component provided in some other embodiments of the present application

[0087] FIG6 is a schematic structural diagram of a first bin provided in some embodiments of the present application;

[0088] FIG7 is a partial enlarged view of area A in FIG3 ;

[0089] FIG8 is a schematic structural diagram of an energy storage device provided in some embodiments of the present application (showing the third compartment);

[0090] FIG9 is a partial enlarged view of area B in FIG8 ;

[0091] FIG10 is a schematic structural diagram of an energy storage device provided in some embodiments of the present application (showing that the third compartment is located on the top of the container);

[0092] FIG11 is a schematic diagram of the structure of an energy storage device idea provided in some embodiments of the present application (showing p2);

[0093] FIG12 is a schematic structural diagram of an energy storage device provided in some embodiments of the present application (showing that the third compartment is located at the bottom);

[0094] FIG13 is a schematic structural diagram of an energy storage device provided in some embodiments of the present application (showing that the fourth compartment is formed at the end of the box);

[0095] FIG14 is a diagram illustrating an arrangement of energy storage devices provided in some embodiments of the present application;

[0096] FIG15 is a schematic structural diagram of an energy storage device provided in some embodiments of the present application;

[0097] FIG16 is a schematic structural diagram of an energy storage device provided in some embodiments of the present application;

[0098] FIG17 is a schematic structural diagram of an energy storage device provided in some embodiments of the present application (showing a locking mechanism);

[0099] FIG18 is a schematic structural diagram of a locking mechanism provided in some embodiments of the present application;

[0100] FIG19 is a schematic structural diagram of a container provided in some embodiments of the present application.

[0101] Fig. 20 is a schematic diagram of a structure of a container according to some embodiments of the present application;

[0102] Fig. 21 is a schematic diagram of an exploded structure of a battery cell in a container according to some embodiments of the present application;

[0103] Fig. 22 is an enlarged view of a portion of Fig. 20 at B;

[0104] Fig. 23 is a schematic diagram of a partial structure of a container during a step of hoisting according to some embodiments of the present application;

[0105] Fig. 24 is a schematic diagram of a partial structure of a container during another step of hoisting according to some embodiments of the present application;

[0106] Fig. 25 is a schematic diagram of a partial structure of another container during a step of hoisting according to some embodiments of the present application;

[0107] Fig. 26 is a schematic diagram of a partial structure of another container during another step of hoisting according to some embodiments of the present application;

[0108] Fig. 27 is a schematic diagram of a structure of two adjacent containers of an energy storage device according to some embodiments of the present application;

[0109] Fig. 28 is a schematic diagram of a structure of an energy storage device according to some embodiments of the present application;

[0110] Fig. 29 is a schematic diagram of a structure of two adjacent containers of another energy storage device according to some embodiments of the present application;

[0111] Fig. 30 is a schematic diagram of a structure of two adjacent containers of another energy storage device according to some embodiments of the present application;

[0112] Fig. 31 is a schematic diagram of a structure of a limiting pin according to some embodiments of the present application;

[0113] Fig. 32 is a schematic diagram of a structure of another energy storage device according to some embodiments of the present application;

[0114] Fig. 33 is a schematic diagram of a structure of an energy storage device according to some embodiments of the present application (showing that the control module and the thermal management module are both located in the third compartment);

[0115] Fig. 34 is a schematic diagram of a structure of a control compartment, a power conversion device, and a transformer according to some embodiments of the present application;

[0116] In the drawings, the drawings are not drawn according to the actual proportions.

[0117] Label description: 1000 - charging network; 2000 - energy storage system; 100 - energy storage device; 10 - container; 1 - box; 11 - battery compartment; 12 - wiring harness compartment; 111 - first compartment door; 13 - frame; 14 - maintenance door; 15 - corner piece; 16 - box wall; 3 - hoisting part; 31 - bearing part; 32 - accommodating groove; 33 - opening; 2 - battery; 21 - battery monomer; 211 - shell; 2111 - shell body; 2112 - end cover; 211a - accommodating cavity; 212 - electrode assembly; 213 - electrode terminal; 22 - thermal management component; 23 - containing box; 30 - pipeline system; 301 - main pipeline; 302 - branch pipeline; 4 - fixing piece; 41 - limiting pin; 42 - body; 43 - flange; 5 - electrical compartment; 51 - electrical element; 6 - water cooling unit; 7 - lifting appliance; 8 - first limiting piece; 81 - limiting groove; 9 - second limiting piece; 91 - limiting hole; 101 - first container; 102 - second container; 10b - first connector; 10c - second connector; 10d - third connector; 10e - fourth connector; 10f - fifth connector; 10i - sixth connector; 10j - seventh connector; 10k - eighth connector; 101 - locking mechanism; 1011 - support; 10111 - through hole; 10112 - accommodating cavity; 1012 - locking member; 10121 - first locking part; 10122 - second locking part; 10123 - connecting part; 1013 - driving arm; 102 - first locking hole; 103 - second locking hole; 20 - control compartment; 2011 - first top wall; 2012 - first side wall; 201a - second ventilation opening; 201b - first ventilation opening; 2013 - first compartment; 20131 - first locking piece; 20132 - second locking piece; 20133 - third locking piece; 2014 - second compartment; 2015 - isolation layer; 2016 - first maintenance door; 2017 - second maintenance door; 2018 - third compartment; 2019 - fourth compartment; 202 - control module; 2021 - main control module; 2022 - general control module; 2023 - power distribution module; 2024 - fire control module; 2025 - general control box; 2026 - quick plug interface; 20261 - recess; 203 - thermal management module; 2031 - pumping device; 2032 - first heat exchanger; 2033 - compressor; 2034 - throttling device; 2035 - heat dissipation fan; 2036 - second heat exchanger; 203a - cooling liquid circulation loop; 203b - refrigerant circulation loop; 200 - charging pile; 300 - power conversion device; 500 - transformer; 3000 - power generation device; X - length direction; Y - width direction; Z - height direction. DETAILED DESCRIPTION

[0118] The embodiments of the present application will be described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the examples and the accompanying drawings are provided for the purpose of illustration only and are not intended to limit the scope of the present application, that is, the present application is not limited to the examples described.

[0119] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the present specification and claims and the aforementioned description of the drawings are not intended to be all inclusive in terms of encompassing the full scope of the present application; the terms "comprising," "comprises" and "including" as used herein are specifically intended to be read as meaning "including, but not limited to."

[0120] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the technical features indicated.

[0121] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, or to the same alternative embodiment, nor is it necessary that all embodiments include the same feature or features. It will be explicitly understood by those of ordinary skill in the art that an embodiment described herein can be combined with another embodiment to form an alternative embodiment.

[0122] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces), unless otherwise explicitly specified and limited.

[0123] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0124] "Plurality" appearing in the present application refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0125] In the present application, the battery cell can include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium-sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, etc. The present application embodiments are not limited thereto. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, etc. The present application embodiments are not limited thereto.

[0126] The battery mentioned in the embodiments of the present application can 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, in parallel, or in a mixed connection through a busbar component.

[0127] In some embodiments, the battery can be a battery module; when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0128] In some embodiments, the battery can be a battery pack, which includes a containing box and battery cells, and the battery cells or battery modules are contained in the containing box.

[0129] In some embodiments, the energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0130] The battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of the battery cell, active ions (such as lithium ions) are embedded and extracted between the positive electrode and the negative electrode. The separator is arranged between the positive electrode and the negative electrode, which can prevent the positive and negative electrodes from short-circuiting, and at the same time, the active ions can pass through.

[0131] Optionally, the electrode assembly is in a jelly-roll structure. The positive electrode sheet and the negative electrode sheet are wound into a jelly-roll structure.

[0132] Optionally, the electrode assembly is in a stacked structure.

[0133] Optionally, the shape of the electrode assembly can be cylindrical, flat, or polygonal, etc.

[0134] The power station has higher and higher requirements for the area energy density of the energy storage container. The container usually needs to be provided with a thermal management module to control the temperature of the battery cells in the container. The thermal management module occupies the size of the container, which reduces the energy density of the container per unit of land area, so there is a contradiction between the improvement of the energy density and the setting of the thermal management module.

[0135] In view of this, the embodiments of the present application propose a new technical solution. The technical solution described in the embodiments of the present application is applicable to the container and the energy storage device including the container.

[0136] The energy storage device can be used in an energy storage power station, a wind power system, a solar power system, a mobile power system, or a temporary power supply system. The energy storage power station can store electric energy during a low electricity consumption period and provide electric energy for related users or electric equipment during a high electricity consumption period. The wind power generator set of the wind power system converts wind energy into electric energy, which is stored by the energy storage device. The solar power system converts solar energy into electric energy, which is stored by the energy storage device and supplied to users in time. The mobile power system can supply power to related electric equipment in places where the power grid power supply system cannot reach, such as remote mountainous areas and remote wild areas. The temporary power supply system can supply power to users in the case of insufficient power supply. The energy storage system provided in the embodiments of the present application can be any power system that needs to use an energy storage device.

[0137] Please refer to FIG. 1, which is a structural schematic diagram of a charging network 1000 provided by some embodiments of the present application. The embodiments of the present application provide a charging network 1000, which includes a charging pile 200 for charging electric equipment. The charging network 1000 can also include an energy storage device 100, which is electrically connected to the charging pile 200 and is used to provide electric energy for the charging pile 200.

[0138] It should be noted that the charging pile 200 and the battery cell in the energy storage device 100 are electrically connected through a cable, and the battery cell can provide the electric energy stored therein to the charging pile 200. The charging pile 200 has a connector that can be connected to electric equipment, so as to charge the electric equipment. The charging network 1000 applies the energy storage device 100, which can effectively improve the safety of the charging network 1000 and also helps to improve the flexibility of the charging network 1000 when deployed.

[0139] In one charging network 1000, the charging pile 200 can be one, and the energy storage device 100 provides electric energy for the charging pile 200. The charging pile 200 can also be multiple, and the energy storage device 100 provides electric energy for multiple charging piles 200.

[0140] The energy storage device 100 can include a container 10, which includes a box body 1 and a battery cell. The battery cell is electrically connected to the charging pile 200, so as to provide electric energy for the charging pile 200.

[0141] As an example, as shown in FIG. 1, the charging network 1000 includes one energy storage device 100 and two charging piles 200, and one energy storage device 100 provides electric energy for two charging piles 200.

[0142] Please refer to FIG. 2, which is a structural schematic diagram of an energy storage system 2000 according to some embodiments of the present application. An energy storage system 2000 is provided in the embodiments of the present application. The energy storage system 2000 includes a power conversion device 300, which can be electrically connected to a power generation device 3000 to convert the power provided by the power generation device 3000. The energy storage system 2000 can further include an energy storage device 100, which is electrically connected to the power conversion device 300, and the power conversion device 300 directs the power provided by the power generation device 3000 to the energy storage device 100 after power conversion for storage.

[0143] The power conversion device is used to connect between the power generation device 3000 and the energy storage device 100. The power generation device 3000 is used to generate power, and the power generation device 3000 is used to store the power generated by the power generation device 3000 to the energy storage device 100 through the power conversion device. The energy storage system 2000 applies the energy storage device 100, which can effectively improve the operation safety of the energy storage system 2000. In specific implementation, the power generation device can be a solar panel, a water power generation device, a fire power generation device, etc. The specific type of the power generation device is not limited in the present application.

[0144] As an example, as shown in FIG. 2, the energy storage system 2000 includes an energy storage device 100 and a power conversion device 300, and two power generation devices 3000 respectively transmit the generated power to the power conversion device 300, and the power conversion device 300 directs the power to the energy storage device 100 for storage.

[0145] Please refer to FIG. 3, which is a structural schematic diagram of an energy storage device 100 according to some embodiments of the present application. An energy storage device 100 is provided in the embodiments of the present application. The energy storage device 100 includes a container 10, a control module 202 and a thermal management module 203. The container 10 includes a box body 1 and a plurality of battery monomers 21, the plurality of battery monomers 21 are contained in the box body 1, and at least one of the length direction X, the width direction Y and the height direction Z of the container 10 does not correspond to the size of the standard container. The control module 202 is used to be electrically connected to the plurality of battery monomers 21 to electrically control the battery monomers 21. The thermal management module 203 is connected to the container 10, and the thermal management module 203 is used to manage the temperature of the battery monomers 21; wherein at least part of the thermal management module 203 is located at the top of the container 10.

[0146] The standard container can be the size of the standard container in the transportation process, such as 20 feet, 30 feet, 40 feet or 45 feet, which meets the corresponding standard, and the length, width and height thereof respectively have corresponding sizes.

[0147] 20 feet can include: a length direction X dimension of 6058mm, a tolerance of 0mm-6mm; a width direction Y dimension of 2438mm, a tolerance of 0mm-5mm; and a height direction Z dimension of 2896mm, 2591mm or no more than 2438mm; a tolerance of 0mm-5mm.

[0148] 30 feet can include: a length direction X dimension of 9125mm, a tolerance of 0mm-10mm; a second direction dimension of 2438mm, a tolerance of 0mm-5mm; and a height direction Z dimension of 2896mm, 2591mm or no more than 2438mm; a tolerance of 0mm-5mm.

[0149] 40 feet can include: a length direction X dimension of 12192mm, a tolerance of 0mm-10mm; a width direction Y dimension of 2438mm, a tolerance of 0mm-5mm; and a height direction Z dimension of 2896mm, 2591mm or no more than 2438mm; a tolerance of 0mm-5mm.

[0150] 45 feet can include: a length direction X dimension of 13716mm, a tolerance of 0mm-10mm; a width direction Y dimension of 2438mm, a tolerance of 0mm-5mm; and a height direction Z dimension of 2591mm or 2896mm; a tolerance of 0mm-5mm.

[0151] Optionally, for various sizes of the container 10, dimensions within a range of ±5% of the dimensions can be considered as dimensions within the tolerance range.

[0152] The dimensions of the container 10 corresponding to the dimensions of the standard container mean that the length direction X dimension of the container 10 corresponds to the length direction X dimension of the standard container, the width direction Y dimension of the container 10 corresponds to the width direction Y dimension of the standard container, and the height direction Z dimension of the container 10 corresponds to the height direction Z dimension of the standard container. It can be that only one of the length direction X dimension, the width direction Y dimension and the height direction Z dimension of the container 10 does not correspond to the dimension of the standard container, and the other two dimensions correspond to the two dimensions of the standard container; it can also be that two of the length direction X dimension, the width direction Y dimension and the height direction Z dimension of the container 10 do not correspond to the two dimensions of the standard container, and the other dimension corresponds to the dimension of the standard container; it can also be that none of the length direction X dimension, the width direction Y dimension and the height direction Z dimension of the container 10 corresponds to the dimension of the standard container.

[0153] The size of the container 10 can be smaller than the size of the standard container, or the size of the container 10 can be larger than the size of the standard container. For example, the size of the container 10 in the height direction Z is smaller than the size of the standard container in the height direction Z. For another example, the size of the container 10 in the width direction Y is larger than the size of the standard container in the width direction Y.

[0154] The control module 202 is electrically connected to the plurality of battery monomers 21 in the box 1 to electrically control the battery monomers 21. The control module 202 can be located inside the container 10, or the control module 202 can be located outside the container 10, or the control module 202 can be separately arranged from the container 10, and the control module 202 is electrically connected to the battery monomers 21 in the container 10 through a cable.

[0155] Only a part of the heat management module 203 can be located on the top of the container 10, or all of the heat management module 203 can be located on the top of the container 10. At least part of the heat management module 203 located on the top of the container 10 means that at least part of the heat management module 203 is located outside the top of the container 10, and at least part of the heat management module 203 is arranged along the height direction Z of the container 10.

[0156] In the embodiments of the present application, since at least part of the heat management module 203 is located on the top of the container 10, at least part of the heat management module 203 can share a part of the floor area with the container 10. Under the condition that the total energy of the container 10 is constant, the container 10 can have a smaller volume, and the energy storage device 100 can occupy a smaller floor area, thereby improving the energy per unit floor area of the energy storage device 100, and realizing the improvement of the area energy density of the energy storage device 100.

[0157] In some embodiments, the energy storage device 100 includes a first bin 2013, and at least part of the heat management module 203 is accommodated in the first bin 2013, and the first bin 2013 is located on the top of the container 10.

[0158] All of the heat management module 203 can be accommodated in the first bin 2013. Only a part of the heat management module 203 can be located in the first bin 2013, and the other part is located outside the first bin 2013. The part of the heat management module 203 located outside the first bin 2013 can be located on the top of the container 10, or can be located in the container 10, or can be separately arranged from the container 10 and communicated through a pipeline.

[0159] By arranging the first bin 2013 on the top of the container 10, it is helpful to centrally control the heat management module 203 accommodated in the first bin 2013, and facilitate the management and transportation of the heat management module 203.

[0160] In some embodiments, please continue to refer to FIG. 3. The containers 10 are multiple, and the multiple containers 10 are arranged along the height direction Z. The first warehouse 2013 is located at the top of the topmost container 10.

[0161] The heat management module 203 can be entirely located at the top of the topmost container 10, or only a part of the heat management module 203 can be located at the top of the topmost container 10.

[0162] By arranging the first warehouse 2013 at the top of the topmost container 10, the first warehouse 2013 can be multiple containers 10, reducing the sunlight irradiation on the containers 10, thereby reducing the risk of temperature imbalance of the containers 10.

[0163] In some embodiments, please refer to FIG. 4, which is a structural schematic diagram of the heat management component 22 provided by some embodiments of the present application. The container 10 includes multiple battery 2 devices, each battery 2 device includes the heat management component 22 and multiple battery monomers 21; the heat management module 203 includes multiple heat management units, at least one of the multiple heat management units is accommodated in the first warehouse 2013; the multiple heat management units include a pumping device 2031, a first heat exchanger 2032, a compressor 2033, a second heat exchanger 2036 and a throttling device 2034, the pumping device 2031, the first heat exchanger 2032, the heat management component 22 are sequentially connected to form a cooling liquid circulation loop 203a, the cooling liquid circulation loop 203a is used for cooling the battery monomers 21, the compressor 2033, the second heat exchanger 2036, the throttling device 2034, the first heat exchanger 2032 are sequentially connected to form a refrigerant circulation loop 203b, the refrigerant circulation loop 203b is used for cooling the cooling liquid passing through the first heat exchanger 2032.

[0164] The pumping device 2031, the first heat exchanger 2032, the heat management component 22 and the pumping device 2031 are sequentially connected to form the cooling liquid circulation loop 203a.

[0165] It should be noted that the pumping device 2031 (also referred to as a water pump) is a component for transporting cooling liquid. The first heat exchanger 2032 is a component for heat exchange with the cooling liquid flowing therethrough. The first heat exchanger 2032 can be, but is not limited to, a plate heat exchanger, a shell-and-tube heat exchanger, an air cooler, a spiral plate heat exchanger, a heat exchange tube bundle, etc. The cooling liquid can be, but is not limited to, a mixture of ethylene glycol and water, etc.

[0166] Under the conveying action of the pumping device 2031, the cooling liquid can circulate and flow in the cooling liquid circulation loop 203a, and circulate and flow through the pumping device 2031, the first heat exchanger 2032, the thermal management component 22, and the pumping device 2031. The above connection can be direct connection or indirect connection via a pipeline.

[0167] By adopting the above scheme, the cooling liquid can circulate and flow through the thermal management component 22 to perform direct heat exchange with the battery monomer 21, so as to cool the battery monomer 21. The cooling liquid after the heat exchange with the battery monomer 21 can also circulate and flow through the first heat exchanger 2032 to perform heat exchange with the first heat exchanger 2032, so as to exchange the heat from the battery monomer 21 to the first heat exchanger 2032, and thus cool the cooling liquid.

[0168] The compressor 2033, the second heat exchanger 2036, the throttling device 2034, the first heat exchanger 2032, and the compressor 2033 are sequentially connected to form the refrigerant circulation loop 203b.

[0169] It should be noted that the above connection can be direct connection or indirect connection via a pipeline. The compressor 2033 is a component for providing power for the refrigerant circulation and capable of cooling the refrigerant. The throttling device 2034 is a component for reducing pressure and cooling. The throttling device 2034 can be but is not limited to a throttle valve, an expansion valve, etc. The second heat exchanger 2036 is a component for performing heat exchange with the refrigerant flowing therethrough. The second heat exchanger 2036 can be but is not limited to a plate heat exchanger, a shell-and-tube heat exchanger, an air cooler, a spiral plate heat exchanger, a heat exchange tube bundle, etc. The refrigerant has a lower boiling point and evaporation heat, can be evaporated and condensed at a relatively low temperature, and can achieve the effect of refrigeration 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.

[0170] The first heat exchanger 2032 is provided in the cooling liquid circulation loop 203a and the first refrigerant circulation loop 203b. The first heat exchanger 2032 is internally provided with a cooling liquid flow channel and a refrigerant flow channel. The cooling liquid flow channel participates in forming the cooling liquid circulation loop 203a and is used for the cooling liquid to flow therein. The refrigerant flow channel participates in forming the first refrigerant circulation loop 203b and is used for the refrigerant to flow therein. The cooling liquid flow channel and the refrigerant flow channel are not communicated with each other, so that the cooling liquid and the refrigerant are not mixed. In the first heat exchanger 2032, the cooling liquid and the refrigerant can be heat exchanged, and in particular, the heat of the cooling liquid can be heat exchanged to the refrigerant, so that the first heat exchanger 2032 can cool the cooling liquid flowing therethrough.

[0171] The heat management module 203 further comprises a heat dissipation fan 2035, which dissipates heat from the second heat exchanger 2036.

[0172] In some embodiments, only one of the pumping device 2031, the first heat exchanger 2032, the compressor 2033, the second heat exchanger 2036 and the throttling device 2034 is accommodated in the first compartment 2013.

[0173] The plurality of heat management units are independent of each other, thereby reducing the risk of mutual interference between the heat management module 203 and the battery 2.

[0174] In some embodiments, referring to FIG. 5, which is a structural schematic diagram of the heat management component 22 according to some embodiments of the present application, the heat management module 203 comprises the compressor 2033, the second heat exchanger 2036 and the throttling device 2034. The compressor 2033, the second heat exchanger 2036, the throttling device 2034 and the heat management component 22 are sequentially connected to form a refrigerant circulation loop 203b.

[0175] The heat management module 203 further comprises a heat dissipation fan 2035, which is arranged in axial alignment with the second heat exchanger 2036 along the axis of the heat dissipation fan 2035.

[0176] In some embodiments, referring back to FIG. 3, the heat management module 203 is entirely accommodated in the first compartment 2013.

[0177] In the above embodiments, the heat management module 203 is entirely located on the top of the container 10, which enables the heat management module and the container 10 to share the floor area, thereby further saving the floor area of the energy storage device 100.

[0178] In some embodiments, the energy storage device 100 further comprises a second compartment 2014 which is separately arranged from the first compartment 2013, and at least one of the plurality of heat management units is accommodated in the second compartment 2014.

[0179] The heat management units can be partially located in the first compartment 2013 and partially located in the second compartment 2014. Alternatively, the heat management units can be partially located in the first compartment 2013, partially located in the second compartment 2014, and the rest of the heat management units are independent of the first compartment 2013 and the second compartment 2014. For example, the heat management units include the pumping device 2031, the first heat exchanger 2032, the compressor 2033, the second heat exchanger 2036, and the throttling device 2034. The second heat exchanger 2036 and the first heat exchanger 2032 are located in the first compartment 2013, and the pumping device 2031, the compressor 2033, and the throttling device 2034 are located in the second compartment 2014. Alternatively, the second heat exchanger 2036 is located in the first compartment 2013, and the first heat exchanger 2032 is located in the second compartment 2014. The pumping device 2031, the compressor 2033, and the throttling device 2034 are separately arranged from the heat management components 22 and are connected through pipes.

[0180] By arranging at least one of the heat management units in the first compartment 2013 and the rest of the heat management units in the second compartment 2014, the risk of interference between the heat management units in the first compartment 2013 and the heat management units in the second compartment 2014 can be reduced.

[0181] In some embodiments, the throttling device 2034 and the second heat exchanger 2036 are located in the first compartment 2013, and the pumping device 2031, the first heat exchanger 2032, and the compressor 2033 are located in the second compartment 2014.

[0182] The throttling device 2034 and the second heat exchanger 2036 are located at the top of the container 10. In embodiments where multiple containers 10 are stacked along the height direction Z, the throttling device 2034 and the second heat exchanger 2036 are located at the top of the topmost container 10.

[0183] In this way, the throttling device 2034 and the second heat exchanger 2036 are located at the top of the container 10, which facilitates heat dissipation of the throttling device 2034 and the second heat exchanger 2036. By arranging the pumping device 2031, the first heat exchanger 2032, and the compressor 2033 in the second compartment 2014, the risk of interference between the throttling device 2034 and the second heat exchanger 2036 and the pumping device 2031, the first heat exchanger 2032, and the compressor 2033 can be reduced.

[0184] In some embodiments, the second compartment 2014 is located in the container 10. By arranging the second compartment 2014 in the container 10, the heat management units in the second compartment 2014 can facilitate temperature control of the battery cells 21 in the container 10.

[0185] In some embodiments, the second bin 2014 is placed separately from the container 10. The second bin 2014 is placed separately from the container 10 means that the second bin 2014 is not in contact with the container 10, and the second bin 2014 is connected to the container 10 only through the pipe.

[0186] By placing the second bin 2014 separately from the container 10, the risk of interference between the thermal management unit in the second bin 2014 and the container 10 is reduced.

[0187] In some embodiments, the second bin 2014 is hung on one side of the box 1 along the length direction X or the width direction Y.

[0188] The second bin 2014 can have a hook, and the box 1 has a hanging hole on one side along the length direction X or the width direction Y, and the hook and the hanging hole cooperate to achieve the hanging of the second bin 2014 on the box 1.

[0189] In this way, the maintenance of the second bin 2014 is more convenient, and the installation and placement of the second bin 2014 are facilitated, and the area occupied by the second bin 2014 on the ground is reduced.

[0190] In some embodiments, referring to FIG. 6, FIG. 6 is a structural schematic diagram of the first bin 2013 provided by some embodiments of the present application. The first bin 2013 is provided with a first ventilation opening 201b, which is used for ventilating the thermal management module 203 located in the first bin 2013.

[0191] The first bin 2013 can be provided with the first ventilation opening 201b on the top wall; the first bin 2013 can be provided with the first ventilation opening 201b on the side wall; or the first bin 2013 can be provided with the first ventilation opening 201b on both the top and the side wall.

[0192] In this way, the ventilation of the thermal management module 203 in the first bin 2013 is more convenient, and the heat dissipation effect is better.

[0193] In some embodiments, in a projection plane perpendicular to the height direction Z, the orthographic projection of the first bin 2013 is located in the orthographic projection of the container 10.

[0194] The projection of the first bin 2013 along the height direction Z can be located in the projection of the container 10 along the height direction Z, the projection of the first bin 2013 is smaller than the projection of the container 10; or the projection of the first bin 2013 along the height direction Z and the projection of the container 10 along the height direction Z can completely overlap.

[0195] In this way, the first bin 2013 does not protrude from the container 10 along the length direction X and the width direction Y, and the risk of damage to the first bin 2013 caused by external devices contacting the first bin 2013 is reduced.

[0196] In some embodiments, the size of the first bin 2013 along the height direction Z is p1 times of the size of a standard container along the height direction Z, where p1 is a positive integer, 2≤p1≤5.

[0197] p1 can be any one of 2, 3, 4, or 5.

[0198] For example, the size of the first bin 2013 along the height direction Z is three times of the size of a standard container along the height direction Z.

[0199] By setting the size of the first bin 2013 along the height direction Z to be p1 times of the size of a standard container along the height direction Z, where p1 is a positive integer, 2≤p1≤5, when the first bin 2013 is placed for transportation, p1 first bins 2013 can be stacked along the height direction Z to occupy the transportation height space of a standard container, so as to facilitate the placement and transportation of the first bin 2013 and save the transportation cost of the first bin 2013.

[0200] In some embodiments, please continue to refer to FIG. 3. The container 10 includes a plurality of battery 2 devices, each battery 2 device including a thermal management component 22 and a plurality of battery monomers 21; the energy storage device 100 further includes a first connector 10b in communication with the thermal management module 203, and the container 10 further includes a second connector 10c and a thermal management component 22 in communication with the second connector 10c, and the first connector 10b is connected to the second connector 10c through a pipeline.

[0201] The first connector 10b can be fixed to the thermal management module 203, and the first connector 10b is in communication with the thermal management module 203, and the second connector 10c is fixed to the box 1. In embodiments in which the energy storage device 100 includes a first bin 2013, the first connector 10b can be fixed to the first bin 2013, and the second connector 10c is fixed to the box 1. In embodiments in which the energy storage device 100 includes a plurality of containers 10, the first connector 10b can have a plurality of connecting portions 10123, each container 10 has a second connector 10c, and each second connector 10c is in communication with one connecting portion 10123 of the first connector 10b through a pipeline.

[0202] The first connector 10b and the second connector 10c are connected through a pipeline to realize the rapid communication between the thermal management component 22 and the thermal management module 203, and facilitate the rapid installation between the thermal management module 203 and the container 10.

[0203] In some embodiments, please refer to FIG. 3. The box 1 is provided with a recess 20261 on one side along the length direction X or the width direction Y, and the second connector 10c is arranged in the recess 20261.

[0204] The quick plug interface 2026 is arranged in the recess 20261, which can reduce the volume of the container 10 occupied by the quick plug interface 2026, and can also enhance the waterproof function of the quick plug interface 2026, and reduce the influence of rain and dust on the quick plug interface 2026.

[0205] By arranging the second connector 10c in the recess 20261, the risk of interference between external components and the second connector 10c can be reduced, and the recess 20261 can also reduce the risk of rainwater contacting the second connector 10c and strengthen the protection of the second connector 10c.

[0206] In some embodiments, please refer to FIG. 7, which is a partial enlarged view of region A in FIG. 3. The first bin 2013 has a first locking member 20131, and the top of the container 10 is provided with a second locking member 20132, which is used to cooperate to lock the first bin 2013 and the container 10.

[0207] As an example, as shown in FIG. 7, the first locking member 20131 and the second locking member 20132 are both lock seats, and the first locking member 20131 and the second locking member 20132 are locked together by bolts to cooperate to lock the first bin 2013 and the container 10 at the top. The first bin 2013 can be a thermal management module 203, and the cable of the thermal management module 203 communicating with the container 10 can partially pass out of one side of the container 10 along the length direction X thereof to be exposed outside the container 10, thereby reducing the space occupied by the container 10, or can be entirely located inside the thermal management module 203 and the container 10 to protect the cable.

[0208] By cooperating the first locking member 20131 and the second locking member 20132 to lock the first bin 2013 and the container 10, the position stability of the first bin 2013 is improved.

[0209] In some embodiments, please refer to FIG. 8, which is a structural schematic view of the energy storage device 100 provided in some embodiments of the present application (showing the third bin 2018). The energy storage device 100 further includes a third bin 2018, and the control module 202 includes a plurality of control units, at least one of which is accommodated in the third bin 2018; the plurality of control units include a master control module 2021, and the battery cell 21 and the master control module 2021 are electrically connected.

[0210] All of the plurality of control units can be located in the third bin 2018, or only one of the plurality of control units can be located in the third bin 2018.

[0211] By arranging at least one of the plurality of control units in the third compartment 2018, at least one of the plurality of control units can be transported separately from other control units, reducing the difficulty of transporting the control module 202, thereby reducing transportation costs.

[0212] In some embodiments, the plurality of control units further includes a master control module 2022, a power distribution module 2023, and a fire control module 2024, the master control module 2021, the master control module 2022, and the fire control module 2024 are electrically connected to the power distribution module 2023.

[0213] The power distribution module 2023, the master control module 2022, and the fire control module 2024 can all be located in the third compartment 2018; only one of the power distribution module 2023, the master control module 2022, and the fire control module 2024 can be located in the third compartment 2018; or any two of the power distribution module 2023, the master control module 2022, and the fire control module 2024 can be located in the third compartment 2018.

[0214] In the embodiment of the plurality of containers 10, the master control module 2021 can correspond one-to-one to the container 10.

[0215] As an example, as shown in FIG. 8, the master control module 2022, the power distribution module 2023, and the fire control module 2024 are arranged in a master control box 2025, and the master control box 2025 is arranged in the third compartment 2018.

[0216] By arranging at least one of the power distribution module 2023, the master control module 2022, and the fire control module 2024 in the third compartment 2018, at least one of the power distribution module 2023, the master control module 2022, and the fire control module 2024 and other control units can be transported separately, reducing the difficulty of transporting the container 10 and reducing transportation costs.

[0217] In some embodiments, the control module 202 is accommodated in the third compartment 2018. Accommodating the control module 202 in the third compartment 2018 facilitates centralized management of the control module 202, and the control module 202 and the container 10 are independent of each other, reducing the risk of interference between the control module 202 and the container 10.

[0218] In some embodiments, the third compartment 2018 is located at the top of the container 10, and the first compartment 2013 is located in the third compartment 2018. In this way, the third compartment 2018 can protect the first compartment 2013, enhancing the protection of the first compartment 2013 and reducing the risk of damage to the first compartment 2013 by external forces. The control module 202 and the first compartment 2013 are both accommodated in the third compartment 2018, which facilitates management of the thermal management module 203 in the control module 202 and the first compartment 2013.

[0219] In some embodiments, the third compartment 2018 further comprises an isolation layer 2015 and a fourth compartment 2019, the master control module 2021, the general control module 2022, the fire control module 2024 and the power distribution module 2023 are accommodated in the fourth compartment 2019, and the isolation layer 2015 is used to separate the first compartment 2013 and the fourth compartment 2019. By arranging the isolation layer 2015 between the first compartment 2013 and the fourth compartment 2019, the risk of interference between the thermal management module 203 in the first compartment 2013 and the control module 202 in the fourth compartment 2019 is reduced.

[0220] In some embodiments, please refer to FIG. 9, which is a partial enlarged view of area B in FIG. 8. The first compartment 2013 has a first locking member 20131, and the third compartment 2018 has a third locking member 20133, which are used to lock the first compartment 2013 and the third compartment 2018 together.

[0221] As an example, as shown in FIG. 9, the first locking member 20131 and the third locking member 20133 are both lock seats, which are locked together by bolts to lock the first compartment 2013 and the third compartment 2018 together. The pipeline of the first compartment 2013 communicating with the container 10 can partially pass through one side of the container 10 along the length direction X of the container 10 to be exposed outside the container 10, thereby reducing the space occupied by the container 10

[0222] By locking the first compartment 2013 and the third compartment 2018 together through the first locking member 20131 and the third locking member 20133, the positional stability of the first compartment 2013 in the third compartment 2018 is improved.

[0223] In some embodiments, please refer to FIG. 10, which is a structural schematic view of the energy storage device 100 provided by some embodiments of the present application (showing that the third compartment 2018 is located at the top of the container 10). The third compartment 2018 comprises a third connector 10d electrically connected with the control module 202, and the container 10 comprises a fourth connector 10e electrically connected with the battery monomer 21, and the third connector 10d is used to cooperate with the fourth connector 10e. By cooperating the third connector 10d and the fourth connector 10e, the control module 202 and the battery monomer 21 can be quickly connected, so that the installation of the third compartment 2018 and the container 10 is more convenient.

[0224] In some embodiments, referring to FIG. 11, FIG. 11 is a schematic diagram of the structure of the energy storage device 100 (showing p2) according to some embodiments of the present application. The size of the third bin 2018 along the length direction X is consistent with the size of the length direction X of the standard container, the size of the third bin 2018 along the width direction Y is consistent with the size of the width direction Y of the standard container, and the size of the third bin 2018 along the height direction Z is p2 times the size of the height direction Z of the standard container, where p2 is a positive integer and 2≤p2≤5.

[0225] p2 can be any one of 2, 3, 4, or 5.

[0226] The size of the third bin 2018 along the height direction Z is p2 times the size of the height direction Z of the standard container, which means that the size of the third bin 2018 along the height direction Z is approximately equal to the size of the height direction Z of the standard container. When the size difference between the size of the third bin 2018 along the height direction Z and the size of the height direction Z of the standard container is within a certain range, it can be considered that the sizes are approximately equal. The approximate difference is W, where W≤p2×35mm-30mm. For example, when p2=3, the maximum approximate difference W is 75mm, and when the sum of the heights of the three third bins 2018 is within 75mm of the size of the standard container, i.e., when the sum of the sizes of the three third bins 2018 along the height direction Z is equal to the size of the height direction Z of the standard container, the condition is satisfied.

[0227] By setting the size of the third bin 2018 along the height direction Z to be p2 times the size of the height direction Z of the standard container, when the third bin 2018 is placed for transportation, the p2 third bins 2018 can be stacked to occupy the transportation height space of the standard container, thereby facilitating the placement and transportation of the third bin 2018 and saving the transportation cost of the third bin 2018.

[0228] In some embodiments, the third bin 2018 is located in the container 10. By placing the third bin 2018 in the container 10, the protection of the third bin 2018 by the box 1 is enhanced.

[0229] In some embodiments, the third bin 2018 is hung on one side of the container 10 along the length direction X or along the width direction Y. In this way, the maintenance of the third bin 2018 is more convenient, and the installation and placement of the third bin 2018 are facilitated, thereby reducing the area occupied by the third bin 2018 on the ground.

[0230] In some embodiments, the third bin 2018 is placed separately from the container 10. By placing the third bin 2018 separately from the container 10, the risk of interference between the thermal management unit and the control module 202 in the third bin 2018 and the container 10 is reduced.

[0231] In some embodiments, the third bin 2018 is located at the bottom of the container 10. In this way, the third bin 2018 has a lower height, which is beneficial for maintenance of the control module 202 and the thermal management module 203 in the third bin 2018.

[0232] In some embodiments, please continue to refer to FIG. 11. The third bin 2018 includes a fifth connector 10f that is electrically connected with the control module 202, and the container 10 includes a sixth connector 10i that is electrically connected with the battery cell 21, and the fifth connector 10f is configured to cooperate with the sixth connector 10i.

[0233] The fifth connector 10f can be directly connected with the sixth connector 10i to realize cooperation of the fifth connector 10f and the sixth connector 10i, for example, the fifth connector 10f is insertedly connected with each sixth connector 10i. In this way, the fifth connector 10f can be fixed to the third bin 2018, and the sixth connector 10i can be movably arranged in the box body 1; or the fifth connector 10f can be movably arranged in the third bin 2018, and the sixth connector 10i can be fixedly arranged in the box body 1; or the fifth connector 10f and the sixth connector 10i can be movably arranged in the third bin 2018 and the box body 1, respectively. The fifth connector 10f can include a plurality of connecting portions 10123 that are in one-to-one correspondence with the sixth connector 10i and are connected to realize connection of the fifth connector 10f and the plurality of sixth connectors 10i.

[0234] Through cooperation of the fifth connector 10f and the sixth connector 10i, quick connection of the control module 202 and the battery cell 21 can be realized, and installation of the third bin 2018 and the container 10 is more convenient.

[0235] In some embodiments, please refer to FIG. 12, which is a structural schematic diagram of the energy storage device 100 (showing that the third bin 2018 is located at the bottom) provided in some embodiments of the present application. The third bin 2018 is located at the bottom of the container 10; the size of the third bin 2018 along the length direction X is consistent with the size of the standard container along the length direction X, the size of the third bin 2018 along the width direction Y is consistent with the size of the standard container along the width direction Y, and the size of the third bin 2018 along the height direction Z is p3 times of the size of a standard container along the height direction Z, where p3 is a positive integer, 2≤p3≤5.

[0236] p3 can be any one of 2, 3, 4, and 5.

[0237] The p3 times the size of the third bin 2018 in the height direction Z is equal to the size of the height direction Z of a standard container, which means that the p3 times the size of the third bin 2018 in the height direction Z is approximately equal to the size of the height direction Z of a standard container. When the size difference between the p3 times the size of the third bin 2018 and the size of the height direction Z of a standard container is within a range, it can be considered that the sizes are approximately equal. The approximate equal difference is W, and W≤p3×35mm-30mm. For example, p3=3, and the approximate equal difference W can be 75mm at most. When the sum of the heights of the three third bins 2018 is within 75mm of the size of a standard container, that is, the sum of the sizes of the three third bins 2018 in the height direction Z is equal to the size of the height direction Z of a standard container.

[0238] By setting the p3 times the size of the third bin 2018 in the height direction Z to be equal to the size of the height direction Z of a standard container, the p3 third bins 2018 can be stacked when being placed for transportation, thereby occupying the transportation height space of a standard container, so as to facilitate the placement and transportation of the third bin 2018 and save the transportation cost of the third bin 2018.

[0239] In some embodiments, please continue to refer to FIG. 11. The third bin 2018 is located at the top of the container 10, and the first bin 2013 is located in the third bin 2018. The energy storage device 100 further includes a fourth bin 2019 which is separately arranged from the third bin 2018, and the master control module 2021 is located in the fourth bin 2019. At least one of the power distribution module 2023, the general control module 2022, and the fire control module 2024 is located in the third bin 2018. By arranging at least one of the power distribution module 2023, the general control module 2022, and the fire control module 2024 and at least part of the thermal management module 203 in the third bin 2018, it is convenient to transport at least one of the power distribution module 2023, the general control module 2022, and the fire control module 2024 and at least part of the thermal management module 203 separately from the container 10, thereby reducing the transportation difficulty of the container 10 and reducing the transportation cost.

[0240] The power distribution module 2023, the general control module 2022, and the fire control module 2024 can all be located in the third bin 2018. Only one of the power distribution module 2023, the general control module 2022, and the fire control module 2024 can be located in the third bin 2018. Any two of the power distribution module 2023, the general control module 2022, and the fire control module 2024 can be located in the third bin 2018.

[0241] The master control module 2021 can correspond to one container 10. The plurality of master control modules 2021 can be located in one fourth compartment 2019, or one master control module 2021 can be arranged in one fourth compartment 2019.

[0242] The fourth compartment 2019 can be arranged separately from the box 1, or the fourth compartment 2019 can be located in the container 10, or the fourth compartment 2019 can be directly connected to the container 10. The fourth compartment 2019 arranged separately from the box 1 means that the fourth compartment 2019 and the container 10 do not contact each other, and the control module 202 in the fourth compartment 2019 can be connected to the container 10 through a cable.

[0243] As an example, as shown in FIG. 11, the master control module 2021, the power distribution module 2023, and the fire control module 2024 are arranged in the master control box 2025, and the master control box 2025 is arranged in the third compartment 2018. Each box 1 is provided with one fourth compartment 2019, and the control module 202 is arranged in the fourth compartment 2019.

[0244] By arranging the master control module 2021 in the fourth compartment 2019, the arrangement of the control module 202 is more flexible, and the risk of interference between the master control module 2021 and at least one of the power distribution module 2023, the master control module 2022, and the fire control module 2024 in the third compartment 2018 is reduced.

[0245] In some embodiments, the third compartment 2018 has a length X that is the same as the length X of a standard container, the third compartment 2018 has a width Y that is the same as the width Y of a standard container, and the height Z of the third compartment 2018 is p4 times the height Z of a standard container, where p4 is a positive integer and 2≤p4≤5.

[0246] p4 can be any one of 2, 3, 4, and 5.

[0247] The p4 times the size of the third bin 2018 in the height direction Z is equal to the size of the height direction Z of a standard container, which means that the p4 times the size of the third bin 2018 in the height direction Z is approximately equal to the size of the height direction Z of a standard container. When the size difference between the p4 times the size of the third bin 2018 and the size of the height direction Z of a standard container is within the range, it can be considered that the sizes are approximately equal. The approximate difference is W, and W≤p4×35mm-30mm. For example, p4=3, and the approximate difference W can be 75mm at most. When the sum of the heights of the three third bins 2018 is within 75mm of the size of a standard container, that is, the sum of the sizes of the three third bins 2018 in the height direction Z is equal to the size of the height direction Z of a standard container.

[0248] By setting the p4 times the size of the third bin 2018 in the height direction Z to be equal to the size of the height direction Z of a standard container, the p4 third bins 2018 can be stacked when placed for transportation, occupying the transportation height space of a standard container, so as to facilitate the placement and transportation of the third bin 2018 and save the transportation cost of the third bin 2018.

[0249] In some embodiments, the box 1 includes a battery bin 11, and the battery cell 21 is accommodated in the battery bin 11. The fourth bin 2019 is arranged in the box 1 and is arranged along the length direction X with the battery bin 11.

[0250] The fourth bin 2019 can be arranged between two adjacent battery bins 11 along the length direction X, or the fourth bin 2019 can be arranged on one side of all the battery bins 11 along the length direction X.

[0251] By arranging the fourth bin 2019 in the box 1, the stability of the connection between the main control module 2021 and the battery cell 21 is improved, which helps the control module 202 to electrically control the battery cell 21.

[0252] The fourth bin 2019 and the battery bin 11 can be separated by a partition, which is beneficial to temperature control of the battery cell 21 in the battery bin 11. Adjacent columns of battery cells 2 can be isolated by a partition or can be without a partition. By arranging the fourth bin 2019 in the box 1, the stability of the connection between the main control module 2021 and the battery cell 21 is improved, which helps the control module 202 to electrically control the battery cell 21. Arranging the fourth bin 2019 in the box 1 can also facilitate the maintenance of the main control module 2021, and can shorten the connection line between the battery 2 and the main control module 2021, thereby reducing the internal resistance of the energy storage device 100.

[0253] In some embodiments, referring to FIG. 13, FIG. 13 is a structural schematic diagram of the energy storage device 100 (showing that the fourth compartment 2019 is formed at the end of the box 1) provided by some embodiments of the present application. Along the length direction X, the fourth compartment 2019 is formed at the end of the box 1.

[0254] The fourth compartment 2019 is located in the box 1 and at one end of the box 1 along the length direction X.

[0255] By forming the fourth compartment 2019 at the end of the box 1, the installation of the fourth compartment 2019 is facilitated, and the interference of the fourth compartment 2019 with the battery monomer 21 during maintenance is reduced.

[0256] In some embodiments, continuing to refer to FIGS. 11, 13 and 14, FIG. 14 is an arrangement diagram of the energy storage device 100 provided by some embodiments of the present application. The battery compartment 11 has a first compartment door 111, and the fourth compartment 2019 has a first maintenance door 2016. The first compartment door 111 and the first maintenance door 2016 are located on the same side along the width direction Y.

[0257] One of the wall portions provided on both sides of the container 10 along the width direction Y is the wall portion in which the first compartment door 111 and the first maintenance door 2016 are opened. By opening the first compartment door 111, the battery 2 can be filled or taken out of the container 10 when the first compartment door 111 is opened. When the first compartment door 111 is closed, the first compartment door 111 can separate the battery 2 from the outside, reducing the risk of interference of the outside environment with the battery 2. The first maintenance door 2016 is opened on the same side of the first compartment door 111. By opening the first maintenance door 2016, the maintenance of the master control module 2021 located in the fourth compartment 2019 is facilitated.

[0258] As an example, the energy storage device 100 in FIG. 13 can be arranged according to the arrangement structure of the energy storage device 100 in FIG. 14, so that the first maintenance door 2016 and the first compartment door 111 of each energy storage device 100 are located on both sides of the arrangement structure along the width direction Y, thereby facilitating the maintenance of the master control module 2021.

[0259] In FIG. 14, the distance between adjacent energy storage devices 100 can be less than 300 mm, so as to reduce the floor area occupied by the plurality of energy storage devices 100.

[0260] By providing the first maintenance door 2016 on the container 10, the master control module 2021 is facilitated to be maintained along the width direction Y, so that the maintenance of the master control module 2021 is more convenient.

[0261] In some embodiments, the total control module 2022 is located in the third bin 2018; the third bin 2018 comprises a seventh connector 10j, the seventh connector 10j is electrically connected with the total control module 2022, each container 10 comprises an eighth connector 10k and a master control module 2021 electrically connected with the eighth connector 10k, and the seventh connector 10j is used to cooperate with each eighth connector 10k.

[0262] The seventh connector 10j can be directly connected with the eighth connector 10k to realize the cooperation of the seventh connector 10j and the eighth connector 10k, for example, the seventh connector 10j is plug-fitted with each eighth connector 10k. Among them, the seventh connector 10j can be fixed to the fourth bin 2019, and the eighth connector 10k is movably arranged in the box 1; the seventh connector 10j can be movably arranged in the fourth bin 2019, and the eighth connector 10k is fixedly arranged in the box 1; the seventh connector 10j and the eighth connector 10k can be movably arranged in the fourth bin 2019 and the box 1 respectively. The seventh connector 10j can comprise a plurality of connecting parts 10123, the connecting parts 10123 correspond to and connect with the eighth connector 10k one by one, so as to realize the connection of the seventh connector 10j and the plurality of eighth connectors 10k.

[0263] The seventh connector 10j can be directly connected with the eighth connector 10k to realize the cooperation of the seventh connector 10j and the eighth connector 10k, for example, the seventh connector 10j is plug-fitted with each eighth connector 10k. Among them, the seventh connector 10j can be fixed to the fourth bin 2019, and the eighth connector 10k is movably arranged in the box 1; the seventh connector 10j can be movably arranged in the fourth bin 2019, and the eighth connector 10k is fixedly arranged in the box 1; the seventh connector 10j and the eighth connector 10k can be movably arranged in the fourth bin 2019 and the box 1 respectively. The seventh connector 10j can comprise a plurality of connecting parts 10123, the connecting parts 10123 correspond to and connect with the eighth connector 10k one by one, so as to realize the connection of the seventh connector 10j and the plurality of eighth connectors 10k.

[0264] Through the cooperation of the seventh connector 10j and the eighth connector 10k, the quick connection of the total control module 2022 and the master control module 2021 can be realized, and the installation between the third bin 2018 and the container 10 is facilitated.

[0265] In some embodiments, the fourth bin 2019 is hung on one side of the container 10 along the length direction X or along the width direction Y. In this way, the maintenance of the fourth bin 2019 is more convenient, and the installation and placement of the fourth bin 2019 are also facilitated, and the area of the fourth bin 2019 occupying the ground is reduced.

[0266] In some embodiments, the fourth bin 2019 is placed separately from the container 10. By placing the fourth bin 2019 separately from the container 10, the risk of interference between the control unit in the fourth bin 2019 and the container 10 is reduced.

[0267] In some embodiments, the fourth compartment 2019 is located at the bottom of the container 10. In this way, the fourth compartment 2019 has a lower height, which is beneficial for maintenance of the control unit in the fourth compartment 2019.

[0268] In some embodiments, please continue to refer to FIG. 8. The third compartment 2018 comprises a first top wall 2011 and a plurality of first side walls 2012 surrounding the first top wall 2011, and the first top wall 2011 and at least one first side wall 2012 are provided with a second vent 201a for ventilating the first compartment 2013. By arranging the second vent 201a on the first top and the first side wall 2012 of the third compartment 2018, it is helpful to dissipate heat from the thermal management unit in the first compartment 2013, so that the first compartment 2013 can have a larger heat dissipation area, and the temperature control effect of the thermal management module 203 is improved.

[0269] In some embodiments, the container 10 has a size along the width direction Y consistent with the size of a standard container along the width direction Y, has a size along the height direction Z consistent with the size of a standard container along the height direction Z, and has a size along the length direction X equal to p5 times the size of a standard container along the length direction X, where p5 is a positive integer and 2≤p5≤5. By arranging the size of the container 10 along the length direction X to be p5 times the size of a standard container along the height direction Z, when placing the container 10 for transportation, p5 containers 10 can be arranged in a stacked manner, occupying the transportation space of a standard container, so as to facilitate the placement and transportation of the container 10 and save the transportation cost of the container 10.

[0270] In some embodiments, please refer to FIG. 15, which is a structural schematic diagram of the energy storage device 100 provided in some embodiments of the present application. There are multiple containers 10, and the multiple containers 10 are arranged along the height direction Z; the third compartment 2018 is located between two containers 10 adjacent along the height direction Z.

[0271] By arranging the third compartment 2018 between two containers 10 adjacent along the height direction Z, the control unit in the third compartment 2018 can be connected to the two containers 10 on its sides, and the connection path between the control unit and the containers 10 is shortened.

[0272] In some embodiments, there are multiple containers 10, and the multiple containers 10 are arranged along the height direction Z; the third compartment 2018 is located at the top of the topmost container 10. By arranging the third compartment 2018 at the top of the topmost container 10, the third compartment 2018 can cover the multiple containers 10, reducing the sunlight irradiation on the containers 10, thereby reducing the risk of temperature imbalance of the containers 10.

[0273] In some embodiments, the plurality of containers 10 are arranged along the height direction Z, and the third bin 2018 is located at the bottom of the bottommost container 10. By arranging the third bin 2018 at the bottom of the bottommost container 10, the third bin 2018 is at a lower position, which is beneficial for the maintenance of the control unit in the third bin 2018.

[0274] In some embodiments, referring to FIG. 16, the energy storage device 100 includes m containers 10, where m is a positive integer, and at least part of the thermal management module 203 is arranged at the top of the topmost container 10.

[0275] wherein m is a positive integer.

[0276] By arranging at least part of the thermal management module 203 at the top of the topmost container 10, the space occupied by the thermal management module 203 in the container 10 is reduced, and the heat dissipation of the container 10 is facilitated.

[0277] In some embodiments, the size of the container 10 along the length direction X is consistent with the size of a standard container along the length direction X, the size of the container 10 along the width direction Y is consistent with the size of a standard container along the width direction Y, and the size of one container 10 along the height direction Z is smaller than the size of a standard container along the height direction Z. Such a container 10 can reduce the weight of the box 1, and can match conventional transportation and transfer equipment, meeting the transportation needs of land and / or sea transportation, etc.

[0278] In some embodiments, the size of the container 10 along the length direction X is consistent with the size of a standard container along the length direction X, the size of the container 10 along the width direction Y is consistent with the size of a standard container along the width direction Y, and the size of one container 10 along the height direction Z is greater than the size of a standard container along the height direction Z.

[0279] In some embodiments, the sum of the sizes of m1 containers 10 along the height direction Z in the m containers 10 is equal to the sum of the sizes of n standard containers along the height direction Z.

[0280] The number of containers 10 in the energy storage device 100 can be any number greater than two, for example, the energy storage device 100 includes two containers 10 arranged in layers along the height direction Z; for another example, the energy storage device 100 includes three containers 10 arranged in layers along the height direction Z. It can be understood that when the number of containers 10 in the energy storage device 100 is too large, the bottommost container 1 is prone to damage. The sum of the heights of all containers 10 stacked along the height direction Z is less than or equal to the sum of the heights of eight standard containers stacked.

[0281] m1 of the m containers 10 refers to any m1 of the m containers 10. For example, the energy storage device 100 has three containers 10, which are the first container 10, the second container 10 and the third container 10. If m1 = 2, the two containers 10 can be the first container 10 and the third container 10, or the first container 10 and the second container 10, or the second container 10 and the third container 10.

[0282] m1 can be less than m, and the sum of the sizes of the containers 10 in the m containers 10 along the height direction Z is equal to the sum of the sizes of the n standard containers along the height direction Z. For example, m = 8, m1 = 5, and n = 3. The five containers 10 can be any five of the eight containers 10.

[0283] m1 can also be equal to m, and the sum of the sizes of the m containers 10 along the height direction Z is equal to the sum of the sizes of the n standard containers along the height direction Z. For example, m = 2, and the sum of the heights of the two containers 10 is equal to the height of a standard container.

[0284] It can be understood that m, m1 and n are positive integers.

[0285] The size of the container 10 along the length direction X and the size of the container 10 along the width direction Y are consistent with those of the standard container, so that the horizontal area occupied by the container 10 during transportation is consistent with that of the standard container. The size of the m1 containers 10 along the height direction Z is equal to the size of the n standard containers along the height direction Z, so that the space occupied by the m1 containers 10 during stacking is the same as that occupied by the n standard containers, improving the utilization rate of the space for placing the containers 10, facilitating the full use of the space available along the height direction Z during transportation, reducing the space waste during transportation of the containers 10, and reducing the transportation cost of the containers 10 and the energy storage device 100 using the containers 10, thereby reducing the use cost of the energy storage device 100.

[0286] In some embodiments, along the height direction Z, two adjacent containers 10 are connected by welding, clamping, locking or through the fixing member 4. This facilitates reducing the risk of mutual movement of the two adjacent containers 10 after stacking is completed, thereby improving the structural stability of the energy storage device 100.

[0287] In some embodiments, the energy storage device 100 further comprises a connecting mechanism configured to connect two adjacent containers 10 along the height direction Z; wherein the connecting mechanism comprises a support 1011 arranged between the two adjacent containers 10 along the height direction Z; the sum of the sizes of the m1 containers 10 along the height direction Z and the sum of the sizes of the m1-1 supports 1011 along the height direction Z is equal to the sum of the sizes of the n standard containers along the height direction Z.

[0288] The connecting mechanism can make the stacking of the containers 10 more stable. When the containers 10 are transported, the sum of the sizes of the m1 containers 10 along the height direction Z and the sum of the sizes of the m1-1 supports 1011 arranged between the two adjacent containers 10 along the height direction Z is equal to the sum of the heights of the n standard containers, which can efficiently utilize the transportation space occupied by the containers 10 and save transportation costs.

[0289] In some embodiments, the locking mechanism 101 is the connecting mechanism.

[0290] Please refer to FIG. 17, which is a structural schematic diagram of the energy storage device 100 (showing the locking mechanism 101) provided in some embodiments of the present application. The embodiments of the present application provide an energy storage device 100 comprising a plurality of containers 10 arranged and stacked along the height direction Z.

[0291] In some embodiments, the energy storage device 100 further comprises a locking mechanism 101 configured to lock two adjacent containers 10 along the height direction Z; the locking mechanism 101 comprises a support 1011 arranged between the two adjacent containers 10 along the height direction Z; wherein the sum of the sizes of the m1 containers 10 along the height direction Z and the sum of the sizes of the m1-1 supports 1011 along the height direction Z is equal to the sum of the sizes of the n standard containers along the height direction Z.

[0292] The locking mechanism 101 can be a mechanism for locking two adjacent containers 10 along the height direction Z by clamping and locking, and a locking part 1012. For example, the locking mechanism 101 comprises a bolt and two locking parts, the two locking parts are arranged in the two adjacent containers 10 along the height direction Z, and the bolt cooperates with the two locking parts to lock the two containers 10.

[0293] The sum of the sizes of the m1 containers 10 along the height direction Z and the sum of the sizes of the m1-1 support members 1011 along the height direction Z is equal to the sum of the sizes of the n standard containers along the height direction Z, which means that the sum of the sizes of the m1 containers 10 along the height direction Z and the sum of the sizes of the m1-1 support members 1011 along the height direction Z is approximately equal to the sum of the sizes of the n standard containers along the height direction Z, and the approximate difference is m1*W1, W1≤5 mm, the height of the support member 1011 is W2, W2≤30. Wherein, W1 can be a point value of any one of 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or a point value between any two.

[0294] For example, m1=2, n=1, the height h of the container 10 is 1434 mm, W1=0 mm, the height of the support member 1011 is 28 mm, the height H of the corresponding standard container is 2896 mm, and m1*h+(m1-1)*W2=n*H; therefore, the sum of the sizes of the m1 containers 10 along the height direction Z is equal to the sum of the sizes of the n standard containers along the height direction Z.

[0295] The container 10 can be locked by the locking mechanism 101, so that the stacking of the container 10 is more stable. When transporting the container 10, the m1 containers 10 are stacked and the support member 1011 is arranged between the adjacent two containers 10, so that the stacking height of the m1 containers 10 is equal to the height of the n standard containers, and the space occupied by the m1 containers 10 during transportation is the same as that of the n standard containers, thereby efficiently utilizing the occupied space of the container 10 and saving transportation cost.

[0296] It should be noted that in the embodiment of the present application, the positional relationship, cooperation relationship and connection relationship of the pipeline and cable between the third compartment 2018 or the fourth compartment 2019 described in the embodiment in which the energy storage device 100 does not include the support member 1011 and the container 10 are applicable to the embodiment in which the energy storage device 100 includes the support member 1011.

[0297] Please refer to FIG. 18, which is a structural schematic diagram of the locking mechanism 101 provided by some embodiments of the present application. In some embodiments, the locking mechanism 101 further includes a locking member 1012, and the support member 1011 is arranged between the adjacent two containers 10 along the height direction Z. The locking member 1012 is rotatably arranged on the support member 1011 along the axis extending along the height direction Z, and the locking member 1012 is used to lock the adjacent two containers 10 along the height direction Z.

[0298] The locking accessory 1012 can lock the two containers 10 by clamping, or can lock the two containers 10 by bolting. For example, the locking accessory 1012 is a locking rod, opposite threads are arranged on both sides of the locking rod along the length direction of the locking rod, and screw holes are arranged on the two containers 10. The locking rod is rotated to make the threads cooperate with or separate from the screw holes, so as to lock or unlock the two containers 10.

[0299] The support 1011 is arranged between the two containers 10 adjacent in the height direction Z, so that the connection between the two containers 10 can be achieved, and the cooperation between the two containers 10 can be buffered. The two containers 10 are locked by the locking accessory 1012, so that the stacking of the containers 10 is more stable.

[0300] In some embodiments, one of the two containers 10 adjacent in the height direction Z has a first locking hole 102 (shown in FIG. 19), and the other has a second locking hole 103. The first locking hole 102 and the second locking hole 103 are oppositely arranged in the height direction Z. The locking accessory 1012 further includes a first locking part 10121, a second locking part 10122, and a connecting part 10123. The connecting part 10123 is rotatably arranged on the support 1011 about an axis extending in the height direction Z, and connects the first locking part 10121 and the second locking part 10122. The first locking part 10121 and the second locking part 10122 are respectively located on both sides of the support 1011. The connecting part 10123 has a first position and a second position. When the connecting part 10123 is in the first position, the first locking part 10121 and the second locking part 10122 can be respectively inserted into or withdrawn from the first locking hole 102 and the second locking hole 103. When the connecting part 10123 is in the second position, the first locking part 10121 and the second locking part 10122 can cooperate to lock the two adjacent containers 10.

[0301] The first locking part 10121, the second locking part 10122, and the connecting part 10123 can be integrally formed, or can be welded.

[0302] The first locking hole 102 and the second locking hole 103 can be waist-shaped holes with the same size, the length of the waist-shaped hole is greater than the width, the first locking part 10121 and the second locking part 10122 are T-shaped blocks, the length and the width of the T-shaped part of the first locking part 10121 are smaller than the length and the width of the waist-shaped hole, and the length of the T-shaped part is greater than the width of the waist-shaped hole, and the first locking part 10121 and the second locking part 10122 have the same size; the first locking part 10121 and the second locking part 10122 can be inserted into the corresponding first locking hole 102 and the second locking hole 103, and through the rotation of the connecting part 10123, the first locking part 10121 and the second locking part 10122 can be clamped in the first locking hole 102 and the second locking hole 103 respectively, so as to realize the locking of the two adjacent containers 10.

[0303] By switching the connecting part 10123 between the first position and the second position, the locking member 1012 can be locked or unlocked between the two adjacent containers 10, and the disassembly and assembly of the two adjacent containers 10 are facilitated.

[0304] In some embodiments, the support 1011 is provided with a through hole 10111 penetrating the support 1011 along the height direction Z, and the locking member 1012 is rotatably inserted into the through hole 10111 along an axis extending along the height direction Z; the locking mechanism 101 includes a driving arm 1013 connected with the locking member 1012, the support 1011 is arranged in a receiving cavity 10112 in communication with the through hole 10111, the receiving cavity 10112 penetrates at least one end of the support 1011 along a direction perpendicular to the height direction Z, and the driving arm 1013 is swingably arranged in the receiving cavity 10112.

[0305] The driving arm 1013 can be welded, clamped or bolted with the locking member 1012.

[0306] The receiving cavity can penetrate both ends of the support 1011 along a direction perpendicular to the height direction Z, or can penetrate only one end of the support 1011 along a direction perpendicular to the height direction Z. The driving arm 1013 can be located entirely in the receiving cavity 10112, and the driving arm 1013 can be moved by swinging by inserting a hand or a connecting member into the receiving cavity 10112; the driving arm 1013 can also be partially located outside the receiving cavity 10112 to facilitate the swinging movement of the driving arm 1013.

[0307] By swinging the driving arm 1013 in the receiving cavity 10112, the connecting part 10123 can be switched between the first position and the second position, and the quick locking or unlocking between the two adjacent containers 10 is facilitated.

[0308] In some embodiments, the heights of a portion of the m containers 10 are not equal to the heights of another portion of the m containers 10 along the height direction Z. In this way, the flexibility of the capacity of the containers 10 can be improved to match different requirements.

[0309] The sum of the heights of the plurality of containers 10 along the height direction Z can be equal to the size of one or more containers 10. For example, the sizes of the three containers 10 along the height direction Z are different, and the sum of the sizes of the three containers 10 along the height direction Z is equal to the sum of the sizes of two standard containers along the height direction Z. For another example, the sizes of the five containers 10 along the height direction Z are different, and the sum of the sizes of the five containers 10 along the height direction Z is equal to the sum of the sizes of three standard containers along the height direction Z.

[0310] In some embodiments, the sizes of the m containers 10 along the height direction Z are equal. In this way, the manufacturing process can be simplified, and the cost can be reduced.

[0311] In some embodiments, the standard container is a 20-foot standard container, and the height of the standard container is 2896 mm, 2591 mm, or 2438 mm. That is, the sum of the sizes of the m1 containers 10 along the height direction Z is equal to the height 2896 mm, 2591 mm, or 2438 mm of the 20-foot standard container.

[0312] In some embodiments, the container 10 includes the battery compartment 11 and the wire harness compartment 12, the plurality of battery cells 21 are accommodated in the battery compartment 11, and the wire harness compartment 12 is arranged in the box body 1 and along the length direction X with the battery compartment 11; the wire harness compartment 12 is provided with an opening 33, and at least part of the connection wire harness of the container 10 and the control module 202 passes through the opening 33.

[0313] In some embodiments, the container 10 includes the battery compartment 11 and the wire harness compartment 12, the plurality of battery cells 21 are accommodated in the battery compartment 11, and the wire harness compartment 12 is arranged in the box body 1 and along the length direction X with the battery compartment 11; at least part of the connection wire harness of the container 10 and the thermal management module 203 passes through the opening 33.

[0314] For example, as shown in FIG. 12, the top wall and the bottom wall of the wire harness compartment 12 of the box body 1 are provided with the opening 33, so that the cable or the pipeline passes through the wire harness compartment 12 and the opening 33 of the top wall and the bottom wall to be connected with the control module 202.

[0315] In some embodiments, the cable connecting the first connector 10b and the second connector 10c and the pipeline connecting the third connector 10d and the fourth connector 10e are both arranged in the wire harness compartment 12.

[0316] By arranging the wire harness compartment 12, the connection wire harness of the container 10 and the control module 202 or the thermal management module 203 at least partially passes through the wire harness compartment 12, which reduces the risk of the connection wire harness of the container 10 and the control module 202 or the thermal management module 203 being damaged by being exposed outside the container 10.

[0317] In some embodiments, referring to FIG. 19, FIG. 19 is a structural schematic diagram of the container 10 provided by some embodiments of the present application. The container 10 includes a plurality of battery 2 devices arranged in rows and columns, the plurality of battery 2 devices in each row are arranged along the length direction X, the plurality of battery 2 devices in each column are arranged along the height direction Z, each battery 2 device includes a thermal management component 22 and a plurality of battery monomers 21; the container 10 further includes a main pipe 301 and a plurality of branch pipes 302, the main pipe 301 is connected to the thermal management module 203 and each branch pipe 302, and each branch pipe 302 is connected to the thermal management components 22 of the plurality of battery 2 devices in the same column.

[0318] It can be understood that the main pipe 301 and the plurality of branch pipes 302 of the container 10 form a pipe system 30, and each container 10 has two pipe systems 30 as the inlet and outlet channels of the thermal management component 22, and each pipe system 30 has the same structure. The following will be described by taking the inlet pipe of the container 10 as an example.

[0319] As an example, as shown in FIG. 19, the container 10 has eight battery 2 devices, and the eight battery 2 devices are arranged in two rows and four columns. The container 10 has one main pipe 301 connected to the thermal management module 203, and four branch pipes 302 each connected to the main pipe 301, and each branch pipe 302 is connected to the thermal management components 22 of two battery 2 devices in the same column.

[0320] By connecting the thermal management module 203 through the main pipe 301, the thermal management module 203 can provide fluid to the main pipe 301, and the main pipe 301 can provide fluid to the plurality of branch pipes 302, so that the temperature of the fluid entering the thermal management component 22 is more uniform, and the risk of temperature runaway of the battery 2 is reduced.

[0321] In some embodiments, referring to FIG. 19, the main pipe 301 is located in the box body 1 and at the top of the plurality of battery 2 devices. By arranging the main pipe 301 at the top of the plurality of battery 2 devices, the main pipe 301 is arranged closer to the thermal management module 203 located at the top of the box body 1, which facilitates the thermal management module 203 to control the temperature of the cooling liquid in the main pipe 301.

[0322] Please refer to FIG. 20 and FIG. 21, FIG. 20 is a structural schematic diagram of the container 10 provided by some embodiments of the present application; and FIG. 21 is an exploded structural schematic diagram of the battery cell 21 in the container 10 provided by an embodiment of the present application. The battery cell 21 described in the embodiments of the present application includes an electrode assembly 212 and a shell 211, the shell 211 has a containing cavity 10112, and the electrode assembly 212 is contained in the containing cavity 10112.

[0323] The shell 211 includes a shell body 2111 and an end cover 2112. When assembling the battery cell 21, the electrode assembly 212 can be first placed into the containing cavity 10112, then the end cover 2112 is covered on the shell body 2111, and then the electrolyte is injected into the containing cavity 10112 through the electrolyte injection port on the end cover 2112.

[0324] Optionally, the shell 211 can also be used to contain the electrolyte, for example, the electrolyte. The shell 211 can be in various structural forms.

[0325] The shell 211 can be in various shapes, such as a cylinder, a cuboid, etc. The shape of the shell 211 can be determined according to the specific shape of the electrode assembly 212. For example, if the electrode assembly 212 is in a cylindrical structure, the shell 211 can be optionally in a cylindrical structure. If the electrode assembly 212 is in a cuboid structure, the shell 211 can be optionally in a cuboid structure. In FIG. 21, the shell 211 and the electrode assembly 212 are both in a cuboid structure by way of example.

[0326] The material of the shell 211 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and the embodiments of the present application do not make special limitations thereon.

[0327] The electrode assembly 212 contained in the shell 211 can be one or more. In FIG. 21, the electrode assembly 212 contained in the shell 211 is two.

[0328] As shown in FIG. 20 and FIG. 21, the present application provides a container 10, which includes a box body 1 and a battery cell 21, the battery cell 21 is contained in the box body 1, the size a of the container 10 along the length direction X and the size b of the container 10 along the width direction Y are respectively consistent with those of a standard container, and the size h of the container 10 along the height direction Z is smaller than the size H of a standard container along the height direction Z of the container 10.

[0329] The container 10 includes the battery cell 21, and the container 10 can include a plurality of battery cells 21, the plurality of battery cells 21 are connected in series or in parallel with each other to form a corresponding energy storage unit of the container 10. In use, a plurality of containers 10 can be connected in series or in parallel to obtain an energy storage device 100 with a corresponding power.

[0330] The container 10 includes the battery cell 21, and the container 10 can include only the battery cell 21, or can also integrate relevant functional elements such as control elements, fire-fighting elements, etc. in the container 10.

[0331] The container 10 needs to be less than or equal to the size of a standard container during transportation, and the standard container can be a standard container during transportation, such as a 20-foot, 30-foot, 40-foot, or 45-foot container, which meets the corresponding standards, and has corresponding dimensions in length, width, and height.

[0332] Exemplarily, according to GB / T 1413-2008, GB / T 1413-2023, and international general dimensions, for a standard container with a length of 6058 mm, the size H in the height direction Z can be 2591 mm, 2438 mm, <2438 mm, or 2896 mm, etc. For a standard container with a length of 9125 mm, the size H in the height direction Z can be 2896 mm, 2591 mm, <2438 mm, or 2438 mm, etc.

[0333] The size a of the container 10 in the length direction X and the size b in the width direction Y are respectively consistent with those of a standard container, which does not mean that the length and width of the container 10 are exactly equal to those of the standard container, but can have a certain error within the error allowable range. Exemplarily, referring to GB / T 1413-2008 and GB / T 1413-2023, the difference between the size a of the container 10 in the length direction X and the size of the standard container in the length direction X of the container 10 is within ±10 mm, and the difference between the size b of the container 10 in the width direction Y and the size of the standard container in the width direction Y of the container 10 is within ±5 mm.

[0334] The size h of the container 10 in the height direction Z is less than the size H of a standard container in the height direction Z of the container 10, and 2h can be set to be less than or equal to H, or 3h can be set to be less than or equal to H, so that the height of a plurality of containers 10 stacked in the height direction Z is equivalent to the height H of a standard container.

[0335] Of course, the sum of the sizes of three containers 10 stacked in the height direction Z can also be set to be the same as the size H of two standard containers in the height direction Z, so that the three containers 10 stacked in the height direction Z are equivalent to the size of two standard containers stacked in the height direction Z in the height direction Z of the container 10.

[0336] The container 10 provided by the embodiments of the present application has a size h in the height direction Z smaller than that of a standard container in the height direction Z, so that the container 10 does not exceed the standard container height in the corresponding sea or land transportation, thereby improving the convenience of the container 10 in the transportation process and reducing the transportation cost of the container 10 and the energy storage device 100 using the container 10.

[0337] In some embodiments, |2h-H|≤5mm.

[0338] For example, |2h-H| can be 0, 1mm, 2mm, 3mm, 4mm or 5mm, etc.

[0339] On the one hand, the height of one container 10 is equivalent to half of the standard container height, which can reduce the use of the structural member of the container body 1 and increase the weight of the battery monomer 21 per unit volume; on the other hand, when two containers 10 are stacked in the height direction Z, the size H in the height direction Z is equivalent to that of a standard container, which is conducive to making full use of the space available in the height direction Z in the transportation process, reducing the space waste of the container 10 in the transportation process, and thereby reducing the transportation cost.

[0340] In some embodiments, |3h-H|≤5mm.

[0341] For example, |3h-H| can be 0, 1mm, 2mm, 3mm, 4mm or 5mm, etc.

[0342] On the one hand, the height of one container 10 is equivalent to one third of the standard container height, which can reduce the use of the structural member of the container body 1 and increase the weight of the battery monomer 21 per unit volume; on the other hand, when three containers 10 are stacked in the height direction Z, the size H in the height direction Z of the container 10 is equivalent to that of a standard container, which is conducive to making full use of the space available in the height direction Z in the transportation process, reducing the space waste of the container 10 in the transportation process, and thereby reducing the transportation cost.

[0343] In some embodiments, the weight of the container 10 is less than or equal to 45 tons.

[0344] For example, the weight of the container 10 can be 10 tons, 15 tons, 20 tons, 25 tons, 30 tons, 35 tons, 40 tons or 45 tons, etc.

[0345] During the transfer of the container 10, the container 10 needs to be hoisted on the container 10 or the ground by using the related hoisting device, and the carrying capacity of the related hoisting device is usually limited, and the maximum carrying capacity is usually 45 tons. By setting the weight of the container 10 to be less than or equal to 45 tons, the hoisting of the related hoisting device during hoisting of the container 10 is facilitated, and the transfer work of the container 10 is facilitated.

[0346] In some embodiments, the weight of the container 10 is M, the total weight of the battery monomer 21 in the box body 1 is M1, and M1 / M≥60%.

[0347] M1 / M≥60%, optionally, M1 / M≥60%, M1 / M≥70%, M1 / M≥80% or M1 / M≥90% or the like can be set, and exemplarily, M1 / M can be 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80% or 85% or the like.

[0348] It can be understood that the higher the weight of the battery monomer 21 in the box body 1, the higher the energy storage of the container 10, and the higher the energy density of the container 10. In this way, the weight proportion of the battery monomer 21 in the unit volume of the container 10 can be increased, and the electric quantity of the container 10 with the unit volume can be increased. And during the transportation of the container 10, more battery monomers 21 that contribute to energy storage and have high production difficulty and cannot be produced at the destination are transported, while other structures can be produced near the destination without transportation or reducing transportation. After the container 10 is assembled into the energy storage device 100, it is beneficial to reduce the transportation cost of the assembled energy storage device 100.

[0349] In some embodiments, M1 / M≥80%.

[0350] Optionally, M1 / M can be 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89% or 90% or the like.

[0351] In this way, the volume proportion of the battery monomer 21 in the unit volume of the container 10 can be increased, and the electric quantity of the container 10 with the unit volume can be increased. The container 10 can load more battery monomers 21, and during the transportation of the container 10, more battery monomers 21 with high production difficulty and contributing to energy storage can be transported, and other related functional elements of the energy storage device 100 do not need to be transported or as little as possible. After the container 10 is assembled into the energy storage device 100, it is further beneficial to reduce the transportation cost of the assembled energy storage device 100.

[0352] In some embodiments, the volume of the container 10 is V, the total volume of the battery cells 21 in the box 1 is v, and v / V≥30%.

[0353] v / V≥30%. Alternatively, v / V≥40%. Exemplarily, v / V can be 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 55%, 60%, 65%, or 70%, etc.

[0354] It can be understood that the more the volume of the battery cells 21 occupies the volume of the container 10, the more conducive to improving the energy storage and energy density of the container 10. In this way, fewer or no related functional elements can be loaded in the container 10, and as many battery cells 21 as possible can be loaded. In this way, during the transportation of the container 10, more battery cells 21 that contribute to the energy storage and have high production difficulty and cannot be produced at the destination are transported, and other functional elements of the energy storage device 100 such as control elements can be produced at a location close to the destination without being transported or reducing transportation, and after the container 10 is assembled into the energy storage device 100, it is conducive to reducing the transportation cost of the assembled energy storage device 100.

[0355] In some embodiments, v / V≥50%.

[0356] Alternatively, v / V can be 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 75%, 80%, 85%, or 90%, etc.

[0357] In this way, the container 10 can load more battery cells 21, and during the transportation of the container 10, more battery cells 21 that have high production difficulty and contribute to energy storage can be transported, and other related functional elements of the energy storage device 100 do not have to be transported or as little as possible. After the container 10 is assembled into the energy storage device 100, it is further conducive to reducing the transportation cost of the assembled energy storage device 100.

[0358] As shown in FIGS. 20, 22, and 23, FIG. 22 is a partial enlarged view of B in FIG. 20; and FIG. 23 is a partial structural schematic diagram of one step in the hoisting process of the container 10 provided by the embodiments of the present application. In some embodiments, the top of the box 1 has a plurality of hoisting portions 3, which are configured to cooperate with the lifting appliance 7 to hoist the container 10.

[0359] The lifting part 3 is located at the top of the box body 1, and the lifting part 3 can be above the box body 1 in the height direction Z. The lifting part 3 can be integrally formed with the box body 1, or a lifting part 3 can be specially arranged at the top of the box body 1.

[0360] Optionally, the box body 1 can have one or more lifting parts 3, and the plurality of lifting parts 3 can be arranged at a plurality of positions to facilitate lifting of the container 10.

[0361] After the container 10 is lifted, the lifting part 3 at the top of the container 10 can cooperate with the container 10 above in the height direction Z to limit the cooperation between the two adjacent containers 10.

[0362] The lifting part 3 can be any structure capable of carrying the container 10 and cooperating with the hook of the lifting appliance 7, so that the container 10 can be lifted by the lifting appliance 7 to facilitate the stacking of the container 10 in the height direction Z or the lifting of the container 10 during transportation.

[0363] As shown in FIGS. 23-26, FIG. 24 is a partial structure diagram of another step in the lifting process of the container 10 according to an embodiment of the present application; FIG. 25 is a partial structure diagram of a step in the lifting process of another container 10 according to an embodiment of the present application; and FIG. 26 is a partial structure diagram of another step in the lifting process of another container 10 according to an embodiment of the present application. In some embodiments, the lifting part 3 includes a bearing part 31, a receiving groove 32, and an opening 33. The receiving groove 32 is located inside the bearing part 31, and the opening 33 connects the receiving groove 32 and the outside of the receiving groove 32. The opening 33 is located at the top of the bearing part 31.

[0364] During lifting, the hook of the lifting appliance 7 can pass through the opening 33 into the receiving groove 32, and then the hook of the lifting appliance 7 is rotated to cooperate with the bearing part 31 to lift the container 10.

[0365] The shape of the opening 33 can be a long strip, a circle, or any irregular shape, which can be set according to actual needs.

[0366] Therefore, the lifting part 3 includes the bearing part 31, the receiving groove 32, and the opening 33, and the structure of the lifting part 3 is simple, which facilitates the lifting of the container 10.

[0367] In some embodiments, the opening 33 can be the first locking hole 102 or the second locking hole 103.

[0368] Optionally, as shown in FIG. 20, in some embodiments, the top of the box body 1 is provided with four lifting parts 3, and the four lifting parts 3 are diagonally arranged.

[0369] In this way, during the hoisting of the container 10, the four hoisting portions 3 are hoisted, so as to facilitate the container 10 to maintain a stable posture, and thus facilitate the container 10 to cooperate and align with the container 10 below, and further facilitate the hoisting and stacking of the container 10.

[0370] As shown in FIG. 27, FIG. 27 is a structural schematic view of cooperation of two adjacent containers 10 according to an embodiment of the present application. In some embodiments, the bottom of the box body 1 is provided with a limiting pin 41, which is used to cooperate and limit with the box body 1 of the adjacent container 10.

[0371] In this way, during the stacking of the container 10 along the height direction Z, the limiting pin 41 can be used to limit the two adjacent containers 10 along the height direction Z, so as to limit the displacement of the two adjacent containers 10 along the direction intersecting with the height direction Z, and reduce the risk of mutual movement of the two adjacent containers 10.

[0372] In some embodiments, the box body 1 is provided with a plurality of batteries 2 arranged in rows and columns, and each battery 2 includes a plurality of battery monomers 21.

[0373] The battery 2 can be in the form of a battery 2 module or a battery 2 pack, so that a plurality of battery monomers 21 are connected in series or parallel to form a battery 2, and a plurality of batteries 2 are arranged in rows and columns and connected in series or parallel to form a high-power energy storage unit, which is beneficial to fully utilize the space in the box body 1 to place more battery monomers 21, and thus is beneficial to improve the power and energy density of the container 10.

[0374] Please continue to refer to FIG. 20, in some embodiments, the box body 1 includes a frame 13 and a maintenance door 14, and the maintenance door 14 is movably connected with the frame 13 to open or close the maintenance door 14.

[0375] The maintenance door 14 is movably connected with the frame 13, so that the maintenance door 14 can be detached from the frame 13 or can rotate relative to the frame 13 to open or close the maintenance door 14.

[0376] The box body 1 is provided with the maintenance door 14, and the maintenance door 14 is movably connected with the frame 13, so that in the case of failure of the container 10 during operation, the components in the container 10 can be replaced or repaired by opening the maintenance door 14.

[0377] As shown in FIG. 28, FIG. 28 is a structural schematic view of a kind of energy storage device 100 according to some other embodiments of the present application. The energy storage device 100 according to the embodiments of the present application includes the container 10 provided by any of the above embodiments.

[0378] The energy storage device 100 provided by the embodiments of the present application has the same technical effects as the container 10 provided by any of the embodiments described above, and thus will not be described again here.

[0379] In some embodiments, the energy storage device 100 includes m containers 10, m is a positive integer greater than or equal to 2, the m containers 10 are stacked along the height direction Z, and |h1+…+hm-nH|≤5n(mm), where h1, …, and hm are the sizes of the m containers 10 along the height direction Z, respectively, and n is a positive integer.

[0380] The energy storage device 100 includes m containers 10 stacked along the height direction Z, and the sizes of the containers 10 along the height direction Z are h1, …, and hm, respectively. Optionally, h1 to hm can all be equal or all be different. Of course, at least two of h1 to hm can also be equal.

[0381] Generally, the difference between the allowable height of the transported goods and the height of a single standard container during transportation is within an error range of -5mm to 0mm. In this way, the space in the height direction Z allowed during transportation can be fully utilized, and the requirements of the container 10 during transportation are also met.

[0382] For example, m can be set to 2 and n to 1, or m can be set to 3 and n to 2. Of course, m and n can also be other combinations.

[0383] |h1+…+hm-nH|≤5n(mm) is set, that is, the energy storage device 100 stacked along the height direction Z has a size along the height direction Z comparable to that of n standard containers stacked along the height direction Z, and the absolute value of the height difference between the total height (h1+…+hm) of the energy storage device 100 and the total height nH of the n standard containers stacked along the height direction Z is less than or equal to 5n millimeters. That is, after the plurality of containers 10 are stacked along the height direction Z, the energy storage device 100 formed after stacking has a size along the height direction Z comparable to that of n standard containers stacked along the height direction Z, and the total height of the energy storage device 100 and the size of the n standard containers stacked along the height direction Z of the container 10 meet the relevant error standards.

[0384] Therefore, |h1+…+hm-nH|≤5n(mm) is set, which is conducive to fully utilizing the space that can be loaded during transportation and meeting the relevant error requirements, so that the size of the m containers 10 stacked along the height direction Z is comparable to the size of the n standard containers along the height direction Z of the container 10. In this way, it is beneficial to further reduce the transportation cost of the energy storage device 100.

[0385] In some embodiments, n≤8.

[0386] Optionally, n can be 8, 7, 6, 5, 4, 3, 2 or 1.

[0387] n is set to be less than or equal to 8, i.e., the energy storage device 100 is set to be stacked by at most 8 standard containers during transportation. In this way, the relevant load requirements can be met during transportation.

[0388] In some embodiments, m≤12.

[0389] Optionally, m can be 12, 11, 10, 9, 8, 7, 6, 5, 4, 3 or 2.

[0390] m is set to be less than or equal to 12, i.e., the energy storage device 100 is set to be stacked by at most 12 containers 10 along the height direction Z. In this way, the structural stability of the energy storage device 100 can be improved, and the carrying capacity of the bottommost container 10 can be reduced, which is conducive to reducing the carrying capacity of the container 10.

[0391] In some embodiments, m≤8.

[0392] Optionally, m can be 8, 7, 6, 5, 4, 3 or 2.

[0393] In this way, the energy storage device 100 is stacked by at most 8 containers 10 along the height direction Z, which is conducive to further improving the structural stability of the energy storage device 100 and further reducing the demand for the carrying capacity of the container 10.

[0394] In some embodiments, the two adjacent containers 10 along the height direction Z are welded, clamped or connected through the fixing member 4.

[0395] In some embodiments, at least part of the third compartment 2018 and its adjacent container 10 along the height direction Z are welded, clamped or connected through the fixing member 4. This is conducive to reducing the risk of mutual movement of the third compartment 2018 and the container 10 after stacking is completed, thereby improving the structural stability of the energy storage device 100.

[0396] The fixing member 4 can be at least one of a bolt and nut, a pin, a screw or a rivet, etc. Of course, the fixing member 4 can also include a fixing plate, etc. to fixedly connect the two adjacent containers 10 along the height direction Z.

[0397] The two adjacent containers 10 along the height direction Z are connected through the fixing member 4, which can use the fixing member 4 to limit the two adjacent containers 10 along the height direction Z. This is conducive to reducing the risk of mutual movement of the two adjacent containers 10 after stacking is completed, thereby improving the structural stability of the energy storage device 100.

[0398] As shown in FIG. 27 and FIG. 28, in some embodiments, the plurality of containers 10 includes a first container 10 and a second container 10, the first container 10 is located above the second container 10, the bottom of the first container 10 is provided with a limiting pin 41, and the top of the second container 10 is provided with a limiting hole 91, the limiting pin 41 is clamped with the limiting hole 91.

[0399] When the container 10 includes the first container 10 and the second container 10, the same container 10 is the first container 10 relative to the container 10 below, and is the second container 10 relative to the container 10 above, that is, the container 10 can be both the first container 10 and the second container 10. In other words, the limiting pin 41 can be arranged at the bottom of the container 10, and the limiting hole 91 can be arranged at the top of the container 10.

[0400] In this way, the two adjacent containers 10 in the height direction Z are limited from moving relative to each other by the cooperation of the limiting pin 41 and the limiting hole 91, and the purpose of limiting the relative movement of the two adjacent containers 10 is achieved by using a simple structure.

[0401] The limiting hole 91 at the top of the second container 10 can be an opening 33 for lifting the container 10, so that the container 10 is lifted by using the opening 33 during the lifting stage of the container 10, and after the lifting of the container 10 is completed, the opening 33 at the top of the container 1 is cooperated with the limiting pin 41 at the bottom of the adjacent container 10 above to limit the two adjacent containers 10, so as to facilitate simplifying the structure of the container 10.

[0402] As shown in FIG. 29, FIG. 30 and FIG. 31, FIG. 29 is a structure schematic view of the cooperation of two adjacent containers 10 of another energy storage device 100 provided by the embodiment of the application; FIG. 30 is a structure schematic view of the cooperation of two adjacent containers 10 of another energy storage device 100 provided by the embodiment of the application; and FIG. 31 is a structure schematic view of the limiting pin 41 in FIG. 30. In some embodiments, the bottom of the first container 10 is provided with a first limiting piece 8, the first limiting piece 8 is provided with a limiting slot 81, the top of the second container 10 is provided with a second limiting piece 9, the second limiting piece 9 is provided with a limiting hole 91, and the two ends of the limiting pin 41 are clamped with the limiting slot 81 and the limiting hole 91 respectively.

[0403] The second limiting piece 9 can be the lifting part 3 described above, and the limiting hole 91 can be the opening 33 described above. The limiting hole 91 can also be a hole arranged on the container 10.

[0404] As shown in FIG. 30 and FIG. 31, the limiting pin 41 can include a body 42 and a flange 43 arranged at the middle of the body 42, the flange 43 protruding from the body 42 and arranged around the body 42. The size of the body 42 is smaller than the size of the limiting groove 81 and the size of the limiting hole 91, so that the two ends of the body 42 respectively extend into the limiting groove 81 and the limiting hole 91. The size of the flange 43 is larger than the size of the limiting groove 81 and the size of the limiting hole 91, so that the flange 43 is clamped between the first limiting member 8 and the second limiting member 9.

[0405] In this way, during the stacking of the containers 10 along the height direction Z, the limiting pin 41 cooperates with the limiting groove 81 of the upper container 10 of the adjacent two containers 10 and cooperates with the limiting hole 91 of the lower container 10 of the adjacent two containers 10, so that the relative movement of the adjacent two containers 10 is limited by a simple structure.

[0406] As shown in FIG. 28, in some embodiments, the limiting pin 41 can be integrally formed with the first limiting member 8.

[0407] As shown in FIG. 32, FIG. 32 is a structural schematic diagram of another energy storage device 100 provided by the embodiments of the present application. In some embodiments, the energy storage device 100 further includes an electrical compartment 5 and an electrical element 51, the electrical element 51 is contained in the electrical compartment 5, the electrical compartment 5 is arranged outside the container 10, and the electrical element 51 is electrically connected with the battery monomer 21 of the plurality of containers 10 of the energy storage device 100.

[0408] The electrical element 51 is electrically connected with the battery monomer 21 of the plurality of containers 10 of the energy storage device 100, so that the electrical element 51 in the electrical compartment 5 is connected with the battery monomer 21 of the plurality of containers 10 to control the normal work of the battery monomer 21 in the plurality of containers 10.

[0409] The electrical connection between the electrical element 51 and the battery monomer 21 can be direct connection or indirect connection, strong current connection or signal connection. For example, a connection line or a signal acquisition element related to the electrical connection between the battery monomer 21 and the electrical element 51 can be arranged in the container 10, and a related connection interface can be arranged on the box body 1, so that the electrical element 51 is electrically connected with the battery monomer 21 through the related connection interface, to acquire the working information of the battery monomer 21 in the plurality of containers 10 and control the normal cyclic work of the related battery monomer 21.

[0410] The electrical component 51 can be one or more of a master control component or a main control component, etc. The electrical component 51 is accommodated in the electrical compartment 5 and is arranged separately from the container 10 of the energy storage device 100, so that the electrical component 51 does not occupy the weight and volume of the container 10 and can be manufactured and transported separately from the container 10, thereby facilitating reduction of the transportation cost of the energy storage device 100.

[0411] In some embodiments, the electrical component 51 is a control module 202, and the electrical compartment 5 is part of a third compartment 2018 that accommodates the control module 202.

[0412] In some embodiments, the energy storage device 100 can further include a fire control component for firefighting of each container 10. The fire control component can include a fire extinguisher, a fire control pipeline, a nozzle, a fire detector, etc. A fire control module 2024 is configured to control the fire control component to perform firefighting of each container 10.

[0413] As shown in FIG. 32, in some embodiments, the energy storage device 100 further includes a water cooling unit 6 arranged outside the container 10, and the water cooling unit 6 is configured to exchange heat with the battery monomers 21 in the plurality of containers 10 of the energy storage device 100.

[0414] In some embodiments, the water cooling unit 6 is a thermal management module 203.

[0415] In this way, relevant pipelines can be arranged in the container 10, and a pipeline interface can be arranged on the box 1, and the water cooling unit 6 is in communication with the pipeline interfaces of the plurality of containers 10 to supply high-temperature or low-temperature fluid into the containers 10 through the water cooling unit 6, thereby achieving heat exchange with the battery monomers 21 in the containers 10.

[0416] The water cooling unit 6 is arranged outside the container 10, so that the water cooling unit 6 does not occupy the weight and volume of the container 10 and can be manufactured and transported separately from the container 10, thereby facilitating further reduction of the transportation cost of the energy storage device 100.

[0417] As shown in FIGS. 27-32, in some embodiments, the energy storage device 100 includes m containers 10, limit pins 41, an electrical bin 5, electrical components 51, and a water cooling unit 6, m is a positive integer greater than or equal to 2, the m containers 10 are stacked along the height direction Z, |h1+…+hm-nH|≤5n(mm), where h1, …, and hm are the sizes of the m containers 10 along the height direction Z, and n is a positive integer. The container 10 includes a box 1 and battery cells 21 contained in the box 1, the size of the container 10 along the length direction X and the size of the container 10 along the width direction Y are consistent with those of a standard container, and the size h of the container 10 along the height direction Z is less than the size H of a standard container along the height direction Z of the container 10. The electrical components 51 are contained in the electrical bin 5, the electrical components 51 are electrically connected to the battery cells 21 of the plurality of containers 10 of the energy storage device 100, and the water cooling unit 6 is used for heat exchange with the plurality of containers 10 of the energy storage device 100. The weight of the container 10 is less than or equal to 45 tons. The weight of the container 10 is M, the total weight of the battery cells 21 in the box 1 is M1, and M1 / M≥60%. The volume of the container 10 is V, the total volume of the battery cells 21 in the box 1 is v, and v / V≥30%. The box 1 includes a frame 13 and a maintenance door 14 movably connected to the frame 13 to open or close the maintenance door 14. The bottom of the box 1 has a limit slot 81, the limit pin 41 cooperates with the limit slots 81 of the upper two adjacent containers 10 and cooperates with the opening 33 of the lower container 10 to limit the relative displacement of the two adjacent containers 10 along the direction intersecting the height direction Z.

[0418] Please refer to FIG. 33, which is a structural schematic diagram of an energy storage device 100 according to some embodiments of the present application (showing that the control module 202 and the thermal management module 203 are both located in the third bin 2018). The energy storage device 100 according to some embodiments of the present application includes a control bin 20 and a container 10 according to any one of the above embodiments. The control bin 20 includes a third bin 2018, a control module 202, and a thermal management module 203, the control module 202 is used for electrical control of the battery cells 21, and the thermal management module 203 is used for temperature management of the battery cells 21. The third bin 2018 is arranged along the height direction Z of the container 10, the thermal management module 203 and / or at least part of the control module 202 are arranged in the third bin 2018, the size of the third bin 2018 along the length direction X is consistent with the size of a standard container along the length direction X, the size of the third bin 2018 along the width direction Y is consistent with the size of a standard container along the width direction Y, and the size of the third bin 2018 along the height direction Z is equal to p times the size of a standard container along the height direction Z, p is a positive integer, and 2≤p≤5.

[0419] The p times the size of the third bin 2018 in the height direction Z is equal to the size of the height direction Z of a standard container, which means that the p times the size of the third bin 2018 in the height direction Z is approximately equal to the size of the height direction Z of a standard container. When the size difference between the p times the size of the third bin 2018 and the size of the height direction Z of a standard container is within the range, it can be considered that the sizes are approximately equal. The approximate equal difference is W, and W≤p×35mm-30mm. For example, p=3, and the approximate equal difference W can be 75mm at most. When the sum of the heights of the three third bins 2018 is within 75mm of the size of a standard container, that is, the sum of the sizes of the three third bins 2018 in the height direction Z is equal to the size of the height direction Z of a standard container.

[0420] The size of the third bin 2018 in the height direction Z can be 1 / 2, 1 / 3, 1 / 4, or 1 / 5 of the size of the height direction Z of a standard container. For example, when the size of the third bin 2018 in the height direction Z is 1 / 3 of the size of the height direction Z of a standard container, the size of three third bins 2018 in the height direction Z is equal to the size of the height direction Z of a standard container.

[0421] By setting the control module 202, the control module 202 can control the input or output of the battery monomer 21, and realize the electrical control of the battery monomer 21. By setting the thermal management module 203, the thermal management module 203 can manage the temperature of the battery monomer 21, and reduce the risk of temperature runaway of the battery monomer 21. The third bin 2018 can integrate the control module 202 and the thermal management module 203, which is conducive to the maintenance of the control module 202 and the thermal management module 203. The size of the third bin 2018 in the height direction Z is smaller than the size of a standard container in the height direction Z, and the third bin 2018 does not exceed the height of the corresponding standard container in the height direction Z during transportation, which is conducive to improving the convenience of the third bin 2018 during transportation. The size of the third bin 2018 in the length direction X and the size of the third bin 2018 in the width direction Y are consistent with the standard container, so that the horizontal area occupied by the third bin 2018 during transportation is consistent with the standard container. The size of the third bin 2018 in the height direction Z is equal to the size of a standard container in the height direction Z, which can make the space occupied by p third bins 2018 during stacking the same as the space occupied by a standard container, improve the utilization rate of the space where the third bin 2018 is placed, make full use of the space available in the height direction Z during transportation, reduce the space waste of the third bin 2018 during transportation, and reduce the transportation cost of the third bin 2018 and the energy storage device 100 using the third bin 2018, thereby reducing the use cost of the energy storage device 100.

[0422] In some embodiments, when the p third bins 2018 are stacked for assembly or land and sea transportation, a support 1011 can also be arranged between two third bins 2018 adjacent in the height direction Z, and the p third bins 2018 can be stacked so that the sum of the sizes of the p third bins 2018 in the height direction Z is the same as the size of a standard container; or the p third bins 2018 can be stacked and a support 1011 is arranged between every two adjacent third bins 2018, and the sum of the sizes of the p-1 supports 1011 in the height direction Z is the same as the sum of the sizes of the p third bins 2018 in the height direction Z, which is the same as the size of a standard container.

[0423] The support 1011 can be arranged between every two third bins 2018; or the support 1011 can be arranged only between some adjacent third bins 2018; or no support 1011 is arranged between all adjacent third bins 2018.

[0424] In the embodiment in which the third bin 2018 and the container 10 are stacked in the height direction Z, a support 1011 can be arranged between the third bin 2018 and the container 10, or no support 1011 can be arranged.

[0425] In some embodiments, part of the control modules 202 are arranged in the third bin 2018, and the rest of the control modules 202 are arranged in the container 10.

[0426] In some embodiments, the control module 202 includes a master control module 2021, a power distribution module 2023, a general control module 2022, and a fire control module 2024, and the master control module 2021, the general control module 2022, and the fire control module 2024 are electrically connected to the power distribution module 2023.

[0427] The embodiment of the present application provides a kind of energy storage system 2000, including power conversion device, and the energy storage device 100 provided in any one of the above embodiments, power conversion device is used to electrically connect power generation device 3000 and energy storage device 100 or container 10.

[0428] Referring to FIG. 34, FIG. 34 is a structural schematic diagram of the third warehouse 2018, the power conversion device 300 and the transformer 500 provided by some embodiments of the present application. In some embodiments, the energy storage system 2000 further comprises the transformer 500, the transformer 500 is electrically connected with the power conversion device, the transformer 500 is used for being electrically connected with the power grid; at least two containers 10 are arranged along the length direction X; the third warehouse 2018 is separately arranged from the container 1, the third warehouse 2018, the power conversion device 300 and the transformer 500 are arranged along the length direction X, and the total span of the third warehouse 2018, the power conversion device 300 and the transformer 500 along the length direction X is less than or equal to the total span of two adjacent containers 10 along the length direction X.

[0429] The third warehouse 2018, the power conversion device 300 and the transformer 500 are arranged along the length direction X. Along the length direction X, the third warehouse 2018 can be located between the power conversion device 300 and the transformer 500; the power conversion device 300 can be located between the third warehouse 2018 and the transformer 500; or the transformer 500 can be located between the power conversion device 300 and the third warehouse 2018. One of the third warehouse 2018, the power conversion device 300 and the transformer 500 can be in contact with the other two; one of the third warehouse 2018, the power conversion device 300 and the transformer 500 can be separately arranged from the other two; or the third warehouse 2018, the power conversion device 300 and the transformer 500 can be separately arranged two by two.

[0430] The total span of the third warehouse 2018, the power conversion device 300 and the transformer 500 along the length direction X refers to the total size of the third warehouse 2018, the power conversion device 300 and the transformer 500 along the length direction X; when there is no gap between the three, the total span is the sum of the sizes of the three along the length direction X; when there is a gap between the three, the total span is the sum of the sizes of the three along the length direction X plus the sum of the sizes of the gap along the length direction X.

[0431] The total span of two adjacent containers 10 along the length direction X refers to the total size of any two adjacent containers 10 in the plurality of containers 10 along the length direction X; in the case that the containers 10 exceed three, there are multiple groups of adjacent containers 10, and the minimum value of the total size along the length direction X in the multiple groups is the total span of the two adjacent containers 10 along the length direction X; when there is no gap between the two adjacent containers 10, the total span is the sum of the sizes of the two along the length direction X; when there is a gap between the two, the total span is the sum of the sizes of the two along the length direction X plus the sum of the sizes of the gap along the length direction X.

[0432] As an example, as shown in FIG. 34, the total span of the third compartment 2018, the power conversion device 300 and the transformer 500 along the length direction X is L1, and the total span of two adjacent containers 10 along the length direction X is L2, L1 is less than L2.

[0433] By making the sum of the size of the third compartment 2018 along the length direction X, the size of the power conversion device 300 along the length direction X and the size of the transformer 500 along the length direction X less than or equal to the sum of the sizes of two standard containers along the length direction X. The third compartment 2018, the transformer 500 and the power conversion device 300 can only occupy the size of two standard containers when transported together, reducing transportation costs.

[0434] In some embodiments, the energy storage system 2000 further comprises a transformer 500, the transformer 500 being electrically connected with the power conversion device, the transformer 500 being configured to be electrically connected with the power grid; at least two containers 10 are arranged along the length direction X; the energy storage device 100 comprises a third compartment 2018 and a fourth compartment 2019, the third compartment 2018 being connected with the box body 1, the fourth compartment 2019 being arranged separately from the box body 1, the fourth compartment 2019, the power conversion device 300 and the transformer 500 being arranged along the length direction X, the total span of the fourth compartment 2019, the power conversion device 300 and the transformer 500 along the length direction X being less than or equal to the total span of two adjacent containers 10 along the length direction X.

[0435] The fourth compartment 2019, the power conversion device 300 and the transformer 500 are arranged along the length direction X. Along the length direction X, the fourth compartment 2019 can be located between the power conversion device 300 and the transformer 500; the power conversion device 300 can be located between the fourth compartment 2019 and the transformer 500; or the transformer 500 can be located between the power conversion device 300 and the fourth compartment 2019. One of the fourth compartment 2019, the power conversion device 300 and the transformer 500 can be in contact with the other two; one of the fourth compartment 2019, the power conversion device 300 and the transformer 500 can be arranged separately from the other two; or the fourth compartment 2019, the power conversion device 300 and the transformer 500 can be arranged separately from each other.

[0436] The total span of the fourth compartment 2019, the power conversion device 300 and the transformer 500 along the length direction X refers to the total size of the fourth compartment 2019, the power conversion device 300 and the transformer 500 along the length direction X. When there is no gap between the three, the total span is the sum of the sizes of the three along the length direction X; when there is a gap between the three, the total span is the sum of the sizes of the three along the length direction X plus the size of the gap along the length direction X.

[0437] The total span of two adjacent containers 10 along the length direction X refers to the total size of any two adjacent containers 10 along the length direction X in the plurality of containers 10. When the number of containers 10 exceeds three, there are multiple groups of adjacent containers 10. The minimum value of the total size along the length direction X in the multiple groups is the total span of two adjacent containers 10 along the length direction X. When there is no gap between the two adjacent containers 10, the total span is the sum of the sizes of the two containers 10 along the length direction X. When there is a gap between the two containers 10, the total span is the sum of the sizes of the two containers 10 along the length direction X plus the sum of the sizes of the gap along the length direction X.

[0438] The sum of the size of the fourth bin 2019 along the length direction X, the size of the power conversion device 300 along the length direction X, and the size of the transformer 500 along the length direction X is less than or equal to the sum of the sizes of two standard containers along the length direction X. This can make the fourth bin 2019, the transformer 500, and the power conversion device 300 occupy the size of only two standard containers when transported together, thereby reducing transportation costs.

[0439] The embodiment of the present application provides a charging network 1000, which comprises a charging pile 200 and the energy storage device 100 provided by any one of the above embodiments. The charging pile 200 is electrically connected with the energy storage device 100 and the container 10. The energy storage device 100 and the container 10 are used for providing electric energy for the charging pile 200.

[0440] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent substitutions can be made to the components thereof. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage device comprising: A container comprising a box body and a plurality of battery cells, wherein the plurality of battery cells are housed in the box body, and at least one of the length, width, and height dimensions of the container is not equal to the corresponding dimension of a standard container; a control module, the control module being configured to be electrically connected to the plurality of battery cells to electrically control the battery cells; a thermal management module, the thermal management module being connected to the container and configured to manage the temperature of the battery cells; Wherein, at least a portion of the thermal management module is located on the top of the container.

2. The energy storage device according to claim 1, wherein The energy storage device includes a first compartment, at least a portion of the thermal management module is accommodated in the first compartment, and the first compartment is located on the top of the container.

3. The energy storage device according to claim 2, wherein: There are multiple containers, which are arranged along the height direction, and the first warehouse is located on the top of the topmost container.

4. The energy storage device according to claim 2 or 3, wherein: The container includes a plurality of battery devices, each of the battery devices includes a thermal management component and a plurality of battery cells; The thermal management module includes a plurality of thermal management units, at least one of the plurality of thermal management units is accommodated in the first compartment; Multiple thermal management units include a pumping device, a first heat exchanger, a compressor, a second heat exchanger and a throttling device. The pumping device, the first heat exchanger and the thermal management component are connected in sequence to form a coolant circulation loop, and the coolant circulation loop is used to cool the battery cells. The compressor, the second heat exchanger, the throttling device and the first heat exchanger are connected in sequence to form a refrigerant circulation loop, and the refrigerant circulation loop is used to cool the coolant passing through the first heat exchanger.

5. The energy storage device according to claim 4, wherein: The thermal management module is entirely accommodated in the first compartment.

6. The energy storage device according to claim 4, wherein: The energy storage device further includes a second compartment that is separate from the first compartment, and at least one of the plurality of thermal management units is accommodated in the second compartment.

7. The energy storage device according to claim 6, wherein: The throttling device and the second heat exchanger are located in the first compartment, and the pumping device, the first heat exchanger, and the compressor are located in the second compartment.

8. The energy storage device according to claim 6 or 7, wherein: The second warehouse is located inside the container; or the second warehouse is separated from the container; or the second warehouse is hung on one side of the box body along the length direction or the width direction.

9. The energy storage device according to any one of claims 2 to 8, wherein: The first compartment is provided with a first vent, and the first vent is used to ventilate the thermal management module located in the first compartment.

10. The energy storage device according to any one of claims 2 to 9, wherein: In a projection plane perpendicular to the height direction, the orthographic projection of the first warehouse is located within the orthographic projection of the container.

11. The energy storage device according to any one of claims 2 to 10, wherein: p1 times the size of the first warehouse along the height direction is equal to the size of a standard container in the height direction, p1 is a positive integer, 2≤p1≤5.

12. The energy storage device according to any one of claims 1 to 11, wherein: The container includes a plurality of battery devices, each of the battery devices includes a thermal management component and a plurality of battery cells; The energy storage device further includes a first connector, which is connected to the thermal management module. The container further includes a second connector and the thermal management component connected to the second connector. The first connector is connected to the second connector through a pipeline.

13. The energy storage device according to claim 12, wherein: The box body is provided with a recess on one side along the length direction or along the width direction, and the second connector is provided in the recess.

14. The energy storage device according to any one of claims 2 to 13, wherein: The first bin has a first locking member, and the top of the container is provided with a second locking member. The first locking member and the second locking member are used to cooperate and lock the first bin and the container.

15. The energy storage device according to any one of claims 2 to 13, wherein: The energy storage device further includes a third compartment, the control module includes a plurality of control units, at least one of the plurality of control units is accommodated in the third compartment; the plurality of control units includes a main control module, and the battery cells are electrically connected to the main control module.

16. The energy storage device according to claim 15, wherein: The multiple control units further include a master control module, a power distribution module and a fire control module. The master control module, the master control module and the fire control module are all electrically connected to the power distribution module.

17. The energy storage device according to claim 15 or 16, wherein: The control module is accommodated in the third compartment.

18. The energy storage device according to claim 17, wherein: The third warehouse is located on the top of the container, and the first warehouse is located inside the third warehouse.

19. The energy storage device according to claim 18, wherein: The third compartment also includes an isolation layer and a fourth compartment. The main control module, the general control module, the fire control module and the power distribution module are accommodated in the fourth compartment. The isolation layer is used to separate the first compartment from the fourth compartment.

20. The energy storage device according to claim 18 or 19, wherein: The first bin has a first locking member, and the third bin has a third locking member. The first locking member and the third locking member are used to cooperate with each other to lock the first bin and the third bin.

21. The energy storage device according to any one of claims 18 to 20, wherein: The third compartment includes a third connector, which is electrically connected to the control module. The container includes a fourth connector, which is electrically connected to the battery cell. The third connector is used to cooperate with the fourth connector.

22. The energy storage device according to any one of claims 18 to 21, wherein: The size of the third warehouse along the length direction is consistent with the size of the standard container in the length direction, the size of the third warehouse along the width direction is consistent with the size of the standard container in the width direction, and p2 times the size of the third warehouse along the height direction is equal to the size of the height direction of one standard container, p2 is a positive integer, 2≤p2≤5.

23. The energy storage device according to claim 17, wherein: The third warehouse is located inside the container; or the third warehouse is hung on one side of the container along the length direction or along the width direction; or the third warehouse is separated from the container; or the third warehouse is located at the bottom of the container.

24. The energy storage device according to claim 23, wherein: The third compartment includes a fifth connector, which is electrically connected to the control module. The container includes a sixth connector, which is electrically connected to the battery cell. The fifth connector is used to cooperate with the sixth connector.

25. The energy storage device according to claim 23 or 24, wherein: The third compartment is located at the bottom of the container; The size of the third warehouse along the length direction is consistent with the size of the standard container in the length direction, the size of the third warehouse along the width direction is consistent with the size of the standard container in the width direction, and p3 times the size of the third warehouse along the height direction is equal to the size of a standard container in the height direction, p3 is a positive integer, 2≤p3≤5.

26. The energy storage device according to claim 15 or 16, wherein: The third warehouse is located on the top of the container, and the first warehouse is located inside the third warehouse; The energy storage device further includes a fourth compartment that is separate from the third compartment, the main control module is located in the fourth compartment, and at least one of the power distribution module, the master control module, and the fire control module is located in the third compartment.

27. The energy storage device according to claim 26, wherein: The size of the third warehouse along the length direction is consistent with the size of the standard container in the length direction, the size of the third warehouse along the width direction is consistent with the size of the standard container in the width direction, and p4 times the size of the third warehouse along the height direction is equal to the size of the height direction of one standard container, p4 is a positive integer, 2≤p4≤5.

28. The energy storage device according to claim 26 or 27, wherein: The box body includes the battery compartment, the battery cells are accommodated in the battery compartment, and the fourth compartment is located in the box body and is arranged along the length direction with the battery compartment.

29. The energy storage device according to claim 28, wherein The fourth compartment is formed at an end portion of the box body along the length direction.

30. The energy storage device according to claim 28 or 29, wherein: The battery compartment has a first compartment door, and the fourth compartment has a first inspection door. The first compartment door and the first inspection door are located on the same side along the width direction.

31. The energy storage device according to any one of claims 26 to 30, wherein: The master control module is located in the third compartment; The third warehouse includes a seventh connector, which is electrically connected to the main control module. Each of the containers includes an eighth connector and the main control module electrically connected to the eighth connector. The seventh connector is used to cooperate with each of the eighth connectors.

32. The energy storage device according to claim 26 or 27, wherein: The fourth warehouse is hung on one side of the container along the length direction or along the width direction; or the fourth warehouse is placed separately from the container; or the fourth warehouse is located at the bottom of the container.

33. The energy storage device according to any one of claims 15 to 22 and 26 to 32, wherein: The third bin includes a first top wall and a plurality of first side walls surrounding the first top wall. The first top wall and at least one of the first side walls are provided with second vents, and the second vents are used to ventilate the first bin.

34. The energy storage device according to any one of claims 1 to 33, wherein: The dimension of the container along the width direction is consistent with the dimension of the standard container in the width direction, the dimension of the container along the height direction is consistent with the dimension of the standard container in the height direction, and p5 times the dimension of the container along the length direction is equal to the dimension of the length direction of a standard container, p5 is a positive integer, 2≤p5≤5.

35. The energy storage device according to claim 15 or 16, wherein: There are multiple containers, and the multiple containers are arranged along the height direction; The third warehouse is located between two adjacent containers along the height direction; or the third warehouse is located on the top of the topmost container; or the third warehouse is located on the bottom of the bottommost container.

36. The energy storage device according to any one of claims 1 to 35, wherein: There are m containers, where m≥2, and the m containers are stacked along the height direction. At least a portion of the thermal management module is located on the top of the topmost container.

37. The energy storage device according to claim 36, wherein: The dimension of the container along the length direction is consistent with the dimension of the standard container along the length direction, the dimension of the container along the width direction is consistent with the dimension of the standard container along the width direction, and the dimension of one container along the height direction is smaller than the dimension of the standard container along the height direction.

38. The energy storage device according to claim 36 or 37, wherein: The sum of the dimensions of m1 containers in the m containers along the height direction is equal to the sum of the dimensions of n standard containers in the height direction.

39. The energy storage device according to any one of claims 36 to 38, wherein: Along the height direction, two adjacent containers are connected by welding, snapping, locking or by fasteners.

40. The energy storage device according to any one of claims 36 to 39, wherein: The energy storage device further includes a connecting mechanism configured to connect two adjacent containers along the height direction; In which, the connecting mechanism includes a support member, which is arranged between two adjacent containers along the height direction; the sum of the dimensions of m1 containers among the m containers along the height direction and the sum of the dimensions of m1-1 supports along the height direction is equal to the sum of the dimensions of n standard containers in the height direction.

41. The energy storage device according to any one of claims 36 to 40, wherein: Along the height direction, the heights of some of the m containers are not equal to the heights of another part of the containers; or the dimensions of the m containers along the height direction are equal.

42. The energy storage device according to any one of claims 1 to 41, wherein: The standard container is a 20-foot standard container, and the height of the standard container is 2896 mm, 2591 mm or 2438 mm.

43. The energy storage device according to any one of claims 1 to 25 and 32 to 42, wherein: The container includes a battery compartment and a wiring harness compartment, wherein a plurality of battery cells are accommodated in the battery compartment, and the wiring harness compartment is located in the box body and arranged along the length direction with the battery compartment; The harness compartment is provided with an opening, through which at least a portion of the harness connecting the container and the control module passes, and / or at least a portion of the harness connecting the container and the thermal management module passes.

44. The energy storage device according to any one of claims 1 to 43, wherein: The container includes a plurality of battery devices, the plurality of battery devices are arranged in rows and columns, the plurality of battery devices in each row are arranged along the length direction, and the plurality of battery devices in each column are arranged along the height direction, and each battery device includes a thermal management component and a plurality of battery cells; The container further includes a main circuit and a plurality of branch circuits, wherein the main circuit is connected to the thermal management module and each of the branch circuits, and each of the branch circuits is connected to the thermal management components of a plurality of the battery devices in a row.

45. The energy storage device of claim 44, wherein: The main line is located in the box and on top of the plurality of battery devices.

46. ​​The energy storage device according to any one of claims 1 to 45, wherein: The container includes a battery cell disposed in the box body, and the weight of a single battery cell is 5 kg to 60 kg.

47. The energy storage device according to any one of claims 1 to 46, wherein: The weight of the container is M, where M≤35 tons.

48. The energy storage device according to any one of claims 1 to 47, wherein: The weight of the container is M, the total weight of the battery cells in the container is M1, and (M1 / M)×100%≥60%.

49. The energy storage device of claim 48, wherein: (M1 / M)×100%≥80%.

50. The energy storage device according to any one of claims 1 to 49, wherein: The weight of the container is M. A plurality of battery devices are arranged in the container. The battery devices include a storage box and a plurality of battery cells. The plurality of battery cells are stored in the storage box. The total weight of the battery devices is M2, and 70%≤(M2 / M)×100%≤90%.

51. The energy storage device according to any one of claims 1 to 50, wherein: The volume of the container is V, the total volume of the battery cells in the container is V1, and (V1 / V)×100%≥30%.

52. The energy storage device of claim 51, wherein: (V1 / V)×100%≥50%.

53. The energy storage device according to any one of claims 1 to 52, wherein: The volume of the container is V. A plurality of battery devices are arranged in the container. The battery devices include a storage box and a plurality of battery cells. The plurality of battery cells are stored in the storage box. The total volume of the battery devices is V2, 50%≤(V2 / V)×100%≤80%.

54. The energy storage device according to any one of claims 1 to 53, wherein: The energy of the container is E, the dimension of the container along the length direction is a, the dimension of the container along the width direction is b, and 250KW / m2≤E / (a×b)≤700KW / m2.

55. The energy storage device of claim 54, wherein: 450KW / m2≤E / (a×b)≤600KW / m2.

56. An energy storage system comprising: power conversion devices; and The energy storage device according to any one of claims 1 to 55, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

57. The energy storage system according to claim 56, wherein: The energy storage system further includes a transformer, the transformer being electrically connected to the power conversion device and configured to be electrically connected to a power grid; at least two of the containers are arranged along the length direction; The energy storage device includes a third compartment, the control module is accommodated in the third compartment, the third compartment is separated from the container, the third compartment, the power conversion device, and the transformer are arranged along the length direction, and the total span of the third compartment, the power conversion device, and the transformer along the length direction is less than or equal to the total span of two adjacent containers along the length direction; Or the energy storage device includes a third compartment and a fourth compartment, the third compartment is connected to the box body, the fourth compartment is separated from the box body, the fourth compartment, the power conversion device and the transformer are arranged along the length direction, and the total span of the fourth compartment, the power conversion device and the transformer along the length direction is less than or equal to the total span of two adjacent containers along the length direction.

58. A charging network comprising: Charging stations; and The energy storage device according to any one of claims 1 to 55, wherein the energy storage device is used to provide electrical energy to the charging pile.

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