Container energy storage device

Abstract

The utility model discloses a container energy storage device, and relates to the technical field of energy storage. The container energy storage device comprises a container shell, m first battery clusters and n second battery clusters, wherein m and n are positive integers; the container shell is provided with a containing cavity; the m first battery clusters and the n second battery clusters are all located in the containing cavity, orthographic projections of the m first battery clusters on a set projection plane and orthographic projections of the n second battery clusters on the set projection plane have an overlapping area, and the overlapping area is larger than the overlapping area. The set projection plane is perpendicular to the height direction of the container shell. According to the container energy storage device, reasonable utilization of the internal space of the container is achieved, the product cost is reduced, and installation and transportation convenience is improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to a container energy storage device. Background Art

[0002] Containerized energy storage devices are integrated energy storage devices developed to meet the needs of the mobile energy storage market. They are characterized by rapid deployment and strong mobility, making them very suitable for temporary or mobile power needs, such as outdoor activities.

[0003] A containerized energy storage device consists of a container and multiple battery clusters installed within it. In related art, these battery clusters are typically laid out flat along the length of the container, wasting space above the battery clusters. Furthermore, to meet battery capacity requirements, the container is also designed to be relatively long, exceeding the standard container dimensions. This significantly increases product cost and hinders installation and transportation. Utility Model Content

[0004] In view of this, the present application provides a container energy storage device, which realizes the rational use of the internal space of the container, reduces product costs, and improves the convenience of installation and transportation.

[0005] This application specifically adopts the following technical solutions:

[0006] A container energy storage device includes a container shell, m first battery clusters and n second battery clusters, where m and n are both positive integers;

[0007] The container shell has a receiving cavity;

[0008] The m first battery clusters and the n second battery clusters are all located in the accommodating cavity, wherein the orthographic projections of the m first battery clusters on a set projection plane have an overlapping area with the orthographic projections of the n second battery clusters on the set projection plane, and the set projection plane is perpendicular to the height direction of the container shell.

[0009] Optionally, the accommodating cavity includes k battery compartments arranged along the length direction of the container shell, and the m first battery clusters and the n second battery clusters are accommodated in the k battery compartments, k<(m+n), and k is a positive integer.

[0010] Optionally, the n second battery clusters are arranged flatly in the k battery compartments, the height of the battery compartment is greater than the height of the second battery cluster, and each of the battery compartments includes a layout space for the second battery clusters arranged in the height direction of the battery compartment and a remaining space where the second battery cluster is not arranged;

[0011] The m first battery clusters are accommodated in the remaining space within the k battery compartments.

[0012] Optionally, the orthographic projection of at least one of the first battery clusters on the set projection plane has an overlapping area with the orthographic projections of at least two of the second battery clusters on the set projection plane.

[0013] Optionally, k=4, and each of the battery compartments includes two sub-compartments distributed side by side along the width direction of the container shell;

[0014] n=8, eight second battery clusters are respectively located in eight sub-compartments;

[0015] m=2, two of the first battery clusters are located above eight of the second battery clusters, and a second battery cluster below one of the first battery clusters and a second battery cluster below another of the first battery clusters are accommodated in different rows of sub-compartments.

[0016] Optionally, the first battery cluster includes a first high-voltage box and a plurality of first battery packs, and the first high-voltage box and at least one of the first battery packs are located in margin spaces of different battery compartments.

[0017] Optionally, each of the second battery clusters includes a second high-voltage box and five second battery packs, the second high-voltage box is located below the five second battery packs, and the five second battery packs are stacked in sequence along the height direction of the container shell;

[0018] Each of the first battery clusters includes one first high-voltage box and five first battery packs. The first high-voltage box and one of the first battery packs are located above one of the second battery clusters and are stacked along the height direction of the container shell; the other four first battery packs are stacked in pairs along the height direction of the container shell and are respectively located above the other two second battery clusters.

[0019] Optionally, a remaining space of at least one of the battery compartments that does not accommodate the first battery cluster is left vacant.

[0020] Optionally, the accommodating cavity further includes an electrical compartment, the electrical compartment being located on one side of the k battery compartments in the length direction of the container shell, and the electrical compartment being separated from the adjacent battery compartments by a partition;

[0021] The device further includes at least one of a second fire-fighting device, a power device, a cooling device, and a confluence device installed in the electrical compartment.

[0022] Optionally, the dimensions of the container shell are the same as those of a standard container.

[0023] In the container energy storage device provided in the embodiment of the present application, the orthographic projections of the m first battery clusters on the set projection plane have an overlapping area with the orthographic projections of the n second battery clusters on the set projection plane, which means that at least one first battery cluster and at least one second battery cluster are stacked in the height direction, thereby reducing the length dimension requirement of the space required for arranging the battery clusters, and realizing the rational utilization of the internal space of the container shell, avoiding space waste, and helping to reduce product costs. In addition, the container energy storage device with a smaller length dimension is easier to install and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a first front axonometric view of a container energy storage device provided in an embodiment of the present application;

[0026] Figure 2 This is a second front axonometric view of a container energy storage device provided in an embodiment of the present application;

[0027] Figure 3 This is a rear axonometric view of a container energy storage device provided in an embodiment of the present application.

[0028] Reference numerals:

[0029] 1. Container shell; 11. Accommodation cavity; 111. Battery compartment; 1111. Layout space; 1112. Remaining space; 112. Electrical compartment; 113. Partition;

[0030] 2. First battery cluster; 21. First high-voltage box; 22. First battery pack;

[0031] 3. Second battery cluster; 31. Second high-voltage box; 32. Second battery pack;

[0032] 4. Primary firefighting equipment;

[0033] 5. Second firefighting equipment; 51. Fire control host; 52. Fire water tank; 53. Second water inlet; 54. Pressure relief valve;

[0034] 6. Power equipment;

[0035] 7. Cooling equipment; 71. Liquid cooler; 72. Air conditioning equipment;

[0036] 8. Converging equipment;

[0037] 9. Liquid cooling assembly; 91. Liquid cooling pipeline; 92. Liquid cooling plate;

[0038] 10. Second air conditioning equipment. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0041] The container energy storage device is an integrated energy storage device developed to meet the needs of the mobile energy storage market. By combining energy storage technology with containers, the device has the characteristics of rapid deployment and strong mobility. It can meet temporary or mobile power needs and is widely used in various energy storage scenarios.

[0042] A containerized energy storage system typically consists of a container, along with multiple battery clusters and other energy storage-related equipment arranged within it. In related art, multiple battery clusters are laid out flat along the length of the container, requiring a considerable amount of space. However, the battery clusters are typically relatively low, leaving significant space above them and resulting in significant wasted space. To meet the required battery cluster capacity, the container is typically designed to be longer, resulting in a larger, non-standard container. This significantly increases product cost and hinders installation and transportation.

[0043] In order to solve the above problems, the present invention provides a container energy storage device, such as Figure 1 As shown, the container energy storage device includes a container housing 1, m first battery clusters 2, and n second battery clusters 3, where m and n are both positive integers. The container housing 1 defines an interior housing cavity 11, within which the m first battery clusters 2 and the n second battery clusters 3 are located. The orthographic projections of the m first battery clusters 2 on a given projection plane overlap with the orthographic projections of the n second battery clusters 3 on the given projection plane, which is perpendicular to the height direction of the container housing 1.

[0044] It should be noted that, for ease of understanding, Figure 1 In the figure, x, y and z are used to indicate the length, width and height of the container shell 1 respectively.

[0045] In the embodiment of the present application, the orthographic projections of the m first battery clusters 2 on the set projection plane have an overlapping area with the orthographic projections of the n second battery clusters 3 on the set projection plane, which means that at least one first battery cluster 2 and at least one second battery cluster 3 are stacked in the height direction. Therefore, the container energy storage device provided in the embodiment of the present application reduces the length dimension requirement of the layout space 1111 required for the battery cluster by stacking the first battery cluster 2 and the second battery cluster 3, and realizes the rational use of the internal space of the container shell 1, avoids space waste, and is conducive to reducing product costs. In addition, the container energy storage device with a smaller length dimension is easier to install and transport.

[0046] In some embodiments of the present application, the size of the container shell 1 is the same as that of a standard container, that is, a standard container can be used as the container shell 1, thereby further reducing the cost of the product and further facilitating the installation and transportation of the product.

[0047] It should be noted that in the embodiments of this application, a standard container refers to a container commonly used within a certain range, such as an international standard container, a national standard container, a regional standard container, or a company standard container. For example, a standard container can be a 20-foot standard container, a 40-foot container, etc.

[0048] In some embodiments of this application, see Figure 1 The accommodating cavity 11 of the container shell 1 includes k battery compartments 111 arranged along the length direction of the container shell 1, and m first battery clusters 2 and n second battery clusters 3 are accommodated in the k battery compartments 111; wherein k<(m+n), k is a positive integer.

[0049] At least a portion of the storage cavity 11 is divided into multiple battery compartments 111 for accommodating the first battery cluster 2 and the second battery cluster 3. The length of each battery compartment 111 matches the length of a battery cluster. Since k < (m + n), i.e., the number of battery compartments 111 is less than the sum of the number of first battery clusters 2 and second battery clusters 3, at least some of the first battery clusters 2 and at least some of the second battery clusters 3 are stacked, thereby reducing the required length of the storage cavity 11 of the container shell 1.

[0050] It should be noted that the length direction of the battery compartment 111 is the same as the length direction of the battery cluster, both of which are parallel to the length direction of the container shell 1; the width direction of the battery compartment 111 is the same as the width direction of the battery cluster, both of which are parallel to the width direction of the container shell 1.

[0051] Alternatively, see Figure 1, n second battery clusters 3 are arranged flatly in k battery compartments 111; moreover, the height of the battery compartment 111 is greater than the height of the second battery cluster 3, so after the second battery cluster 3 is installed, a portion of the space in the battery compartment 111 is vacant, that is, each battery compartment 111 includes an arrangement space 1111 for the second battery clusters 3 arranged in the height direction of the battery compartment 111, and a remaining space 1112 where the second battery cluster 3 is not arranged; the m first battery clusters 2 are accommodated in the remaining space 1112 of these k battery compartments 111.

[0052] For each battery compartment 111, the arrangement space 1111 of the second battery cluster 3 can be located above or below the margin space 1112. The terms "above" and "below" are used to indicate positions in the height direction. When the height of the arrangement space 1111 of the second battery cluster 3 is higher than the height of the margin space 1112, the arrangement space 1111 of the second battery cluster 3 is considered to be located above the margin space 1112. Otherwise, the arrangement space 1111 of the second battery cluster 3 is considered to be located below the margin space 1112.

[0053] The relative positional relationship between the arrangement space 1111 of the second battery cluster 3 and the margin space 1112 can be the same or different for different battery compartments 111. For example, in one battery compartment 111, the arrangement space 1111 of the second battery cluster 3 is located above the margin space 1112; in another battery compartment 111, the arrangement space 1111 of the second battery cluster 3 is located below the margin space 1112.

[0054] It should be understood that since the first battery cluster 2 is arranged in the margin space 1112, the relative positional relationship between the arrangement space 1111 of the second battery cluster 3 and the margin space 1112 corresponds to the relative positional relationship between the second battery cluster 3 and the first battery cluster 2, that is, when the arrangement space 1111 of the second battery cluster 3 is located above the margin space 1112, the second battery cluster 3 is also located above the first battery cluster 2, and vice versa.

[0055] In this way, m first battery clusters 2 and n second battery clusters 3 are stacked and arranged. Therefore, compared with the solution in the related art in which all battery clusters are laid out in a flat manner along the length direction, the solution of the present application shortens the length of the container shell 1.

[0056] Optionally, n=2k, that is, each battery compartment 111 can accommodate two second battery clusters 3. The two second battery clusters 3 are usually arranged side by side along the width direction of the container shell 1 to achieve flat laying.

[0057] In one example, the number of the first battery clusters 2 is less than the number of the second battery clusters 3. In this case, the multiple battery clusters can be arranged in a "bottom-up" manner. Figure 1As shown, in each battery compartment 111, the remaining space 1112 is located above the arrangement space 1111 of the second battery cluster 3, that is, the second battery cluster 3 is arranged in the lower part of the battery compartment 111, and the first battery cluster 2 is arranged above the second battery cluster 3, thereby facilitating the arrangement of the first battery cluster 2 and the second battery cluster 3.

[0058] In some embodiments of the present application, Figure 1 As shown, the orthographic projection of at least one first battery cluster 2 on the set plane and the orthographic projections of at least two second battery clusters 3 on the set plane have an overlapping area.

[0059] Generally speaking, the components of each battery cluster are stacked to form an integral module. Taking the second battery cluster 3 provided in the embodiment of the present application as an example, Figure 2 The diagram shows the structure of a second battery cluster 3. Each second battery cluster 3 includes a second high-voltage box 31 and multiple second battery packs 32. The multiple second battery packs 32 are stacked along the height of the second battery cluster 3 and connected in series. The second high-voltage box 31 is located below the multiple second battery packs 32. Similarly, the first battery cluster 2 includes a first high-voltage box 21 and multiple first battery packs 22, which are connected in series.

[0060] However, in the embodiment of the present application, considering that the height of the battery compartment 111 may not be sufficient to accommodate two stacked battery clusters, in order to fully utilize the space within the battery compartment 111 and improve space utilization, the first battery pack 22 and the first high-voltage box 21 of the first battery cluster 2 are installed in separate excess spaces 1112 of different battery compartments 111. Therefore, the orthographic projection of one first battery cluster 2 on a given projection plane may overlap with the orthographic projections of more than one second battery cluster 3 on the given plane.

[0061] In one example, if Figure 1 and Figure 2As shown, the container energy storage device has ten battery clusters, including two first battery clusters 2 and eight second battery clusters 3. The container housing 1 has a cavity 11 with four battery compartments 111. Each battery compartment 111 includes two sub-compartments (not shown) arranged side by side along the width of the container housing 1. That is, two rows of sub-compartments are formed along the width of the container housing 1, with four sub-compartments in each row. The eight second battery clusters 3 are located in the eight sub-compartments, and the two first battery clusters 2 are stacked on top of the eight second battery clusters 3. Furthermore, the sub-compartment where the second battery cluster 3 is located below any first battery cluster 2 and the sub-compartment where the second battery cluster 3 is located below another first battery cluster 2 are located in different rows along the width of the container housing 1. This avoids the situation where the two first battery clusters 2 are concentrated on the same side of the container housing 1, which is beneficial to the uniformity of the structural layout and the uniformity of heat dissipation of the equipment in the battery compartment.

[0062] In some embodiments of the present application, the first battery cluster 2 includes a first high-voltage box 21 and multiple first battery packs 22 . The first high-voltage box 21 and at least one first battery pack 22 are located in the margin space 1112 of different battery compartments 111 .

[0063] By re-dividing the various components of the first battery cluster 2 into groups and accommodating them in the remaining space 1112 of different battery compartments 111, the size requirement of the battery compartment 111 in the height direction is reduced, the utilization rate of the internal space of the container shell 1 is improved, space waste is reduced, and the layout flexibility of the first battery cluster 2 is improved. This layout scheme can be applied to container shells 1 of different sizes.

[0064] In some examples, each second battery cluster 3 includes a second high-voltage box 31 and five second battery packs 32, wherein the second high-voltage box 31 is located below the five second battery packs 32, and the five second battery packs 32 are stacked in sequence along the height direction of the container shell 1. Each first battery cluster 2 includes a first high-voltage box 21 and five first battery packs 22. These six components are grouped in pairs and accommodated in the residual space 1112 of three battery compartments 111. That is, the first high-voltage box 21 and one of the first battery packs 22 are stacked in the height direction of the container shell 1 and located above one second battery cluster 3; the other four first battery packs 22 are stacked in pairs along the height direction of the container shell 1 and located above the other two second battery clusters 3.

[0065] The battery pack generates a lot of heat during the charging and discharging process. In some embodiments of the present application, such as Figure 1As shown, the container energy storage device may further include a liquid cooling assembly 9, which includes a liquid cooling pipeline 91 and multiple liquid cooling plates 92. The multiple liquid cooling plates 92 are respectively installed in k battery compartments 111. Each liquid cooling plate 92 is used to carry at least one battery pack or high-voltage box and exchange heat with the carried battery pack or high-voltage box; a coolant circulates in the liquid cooling pipeline 91, and the coolant is transported to the liquid cooling plate 92.

[0066] However, if the heat in the battery compartment 111 is not dissipated in time, it is easy to cause a fire. Figure 2 As shown, the containerized energy storage device also includes at least one first firefighting device 4, which is installed at or near the top of the battery compartment 111. That is, the first firefighting device 4 is located above the m first battery clusters 2 and the n second battery clusters 3. This ensures that the fire extinguishing range of the first firefighting device 4 covers all the first battery clusters 2 and the second battery clusters 3.

[0067] In some examples, the first fire-fighting equipment 4 may be a fire extinguisher, such as a dry powder fire extinguisher, a carbon dioxide fire extinguisher, or a dedicated electrical fire extinguisher, so as to facilitate rapid extinguishing of the fire source.

[0068] For the case where the number of the first battery clusters 2 is small and insufficient to fill the remaining spaces 1112 of all the battery compartments 111, as shown in FIG. Figure 1 As shown, the remaining space 1112 of at least one battery compartment 111 not filled with the first battery cluster 2 is left vacant. This not only facilitates the installation of the first firefighting equipment 4, but also prevents other equipment installed in the remaining space 1112 from obstructing the coverage of the first firefighting equipment 4 and affecting the firefighting effect.

[0069] Optionally, for the vacant surplus space 1112, baffles can be used to cover the openings on both sides of the surplus space 1112 to prevent the carbon dioxide or dry powder sprayed by the first fire-fighting equipment 4 from being too dispersed, thereby improving the fire-fighting effect.

[0070] In some embodiments of the present application, Figure 1 As shown, the accommodating cavity 11 also includes an electrical compartment 112, which is located to one side of the k battery compartments 111 in the longitudinal direction of the container shell 1. The electrical compartment 112 is separated from the adjacent battery compartments 111 by a partition 113. Therefore, the space within the electrical compartment 112 is independent of the space within the k battery compartments 111, thus ensuring the sealing of the k battery compartments 111 and improving the safety of the device.

[0071] Optionally, the partition 113 can be made of a flame retardant board, thereby improving the fire resistance and flame retardancy between the battery compartment 111 and the electrical compartment 112. When a fire occurs in the battery compartment 111, it can effectively delay the spread of heat and fire, thereby improving fire safety.

[0072] In some embodiments of the present application, the container energy storage device further includes at least one of a second fire-fighting device 5 , a power device 6 , a cooling device 7 and a confluence device 8 installed in the electrical compartment 112 .

[0073] The second firefighting equipment 5 is used to ensure fire safety in the battery compartment 111 and / or the electrical compartment 112. Optionally, the second firefighting equipment 5 may include a fire control host 51, a fire water tank 52, and a first water inlet (not shown). The fire water tank 52 is connected to the battery compartment 111 via the first water inlet, and a valve (not shown) is provided in the first water inlet.

[0074] Taking the example of a second firefighting device 5 used in conjunction with the first firefighting device 4 to protect the battery compartment 111, the firefighting control host 51 is connected to the first firefighting device 4 by signal, and is also connected to the valve of the firefighting water tank 52 by signal. When a minor fire is detected in the battery compartment 111, the firefighting control host 51 sends a control signal to the first firefighting device 4, causing at least one first firefighting device 4 to spray dry powder or carbon dioxide toward the fire point, thereby executing the firefighting operation. When a serious fire is detected in the battery compartment 111, the firefighting control host 51 sends a control signal to the valve of the firefighting water tank 52, causing the valve to open, and the firefighting water tank 52 to fill the sealed battery compartment 111, thereby executing the firefighting operation. Optionally, the fire in the battery compartment 111 can be detected by a fire sensor, smoke sensor, etc.

[0075] Alternatively, as Figure 3 As shown, the second fire-fighting equipment 5 further includes a second water injection port 53 , which is used to inject external fire-fighting water into the battery compartment 111 , thereby improving the efficiency of fire-fighting and ensuring fire safety.

[0076] Alternatively, as Figure 3 As shown, the second fire-fighting equipment 5 also includes a pressure relief valve 54, which is used to release the pressure in the closed battery compartment 111 when the internal pressure is too high to prevent the battery compartment 111 from exploding, and can also facilitate opening the battery compartment 111 to ensure safe opening.

[0077] The power equipment 6 may include, for example, an energy storage converter, an inverter power supply, etc., for realizing the energy conversion and distribution functions of the container energy storage device.

[0078] Cooling equipment 7 may include, for example, a liquid cooler 71 and a first air conditioning unit 72. Liquid cooler 71 is connected to the liquid cooling pipes and controls the circulation speed and temperature of the coolant, thereby cooling each battery cluster. Furthermore, the first air conditioning unit 72 dissipates excess heat from the interior of the electrical compartment 112, ensuring a controllable temperature in the compartment and, consequently, ensuring smooth operation of the electrical equipment within the containerized energy storage system.

[0079] Optionally, at least one second air conditioning device 10 may be provided in the battery compartment 111. The second air conditioning device 10 is used to discharge excess heat from the interior of the battery compartment 111, ensuring that the temperature of the battery compartment 111 is controllable, thereby ensuring stable operation of the batteries in the container energy storage device.

[0080] The converging device 8 may be, for example, a distribution box, a converging cabinet, etc. The converging cabinet can distribute and output the electric energy of each battery cluster.

[0081] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting this application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

[0082] The above description is only for the purpose of facilitating those skilled in the art to understand the technical solution of this application and is not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. A container energy storage device, characterized in that: The device comprises a container shell (1), m first battery clusters (2) and n second battery clusters (3), where m and n are both positive integers; The container shell (1) has a receiving cavity (11); The m first battery clusters (2) and the n second battery clusters (3) are both located in the accommodating cavity (11), wherein the orthographic projections of the m first battery clusters (2) on a set projection plane and the orthographic projections of the n second battery clusters (3) on the set projection plane have an overlapping area, and the set projection plane is perpendicular to the height direction of the container shell (1).

2. The container energy storage device according to claim 1, characterized in that: The accommodating cavity (11) comprises k battery compartments (111) arranged along the length direction of the container shell (1); the m first battery clusters (2) and the n second battery clusters (3) are accommodated in the k battery compartments (111), k<(m+n), and k is a positive integer.

3. The container energy storage device according to claim 2, characterized in that: The n second battery clusters (3) are arranged flat in the k battery compartments (111), the height of the battery compartment (111) is greater than the height of the second battery cluster (3), and each battery compartment (111) comprises an arrangement space (1111) for the second battery clusters (3) arranged in a height direction of the battery compartment (111), and a remaining space (1112) where the second battery cluster (3) is not arranged; The m first battery clusters (2) are accommodated in the remaining space (1112) within the k battery compartments (111).

4. The container energy storage device according to claim 3, characterized in that: The orthographic projection of at least one of the first battery clusters (2) on the set projection plane has an overlapping area with the orthographic projections of at least two of the second battery clusters (3) on the set projection plane.

5. The container energy storage device according to claim 3 or 4, characterized in that: k=4, each of the battery compartments (111) comprises two sub-compartments distributed side by side along the width direction of the container shell (1); n=8, eight of the second battery clusters (3) are respectively located in eight of the sub-compartments; m=2, two of the first battery clusters (2) are located above eight of the second battery clusters (3), and a second battery cluster (3) below one of the first battery clusters (2) and a second battery cluster (3) below another of the first battery clusters (2) are accommodated in different rows of sub-compartments.

6. The container energy storage device according to claim 5, characterized in that: The first battery cluster (2) comprises a first high-voltage box (21) and a plurality of first battery packs (22); the first high-voltage box (21) and at least one of the first battery packs (22) are located in margin spaces (1112) of different battery compartments (111).

7. The container energy storage device according to claim 6, characterized in that: Each of the second battery clusters (3) comprises a second high-voltage box (31) and five second battery packs (32), wherein the second high-voltage box (31) is located below the five second battery packs (32), and the five second battery packs (32) are stacked in sequence along the height direction of the container shell (1); Each of the first battery clusters (2) comprises a first high-voltage box (21) and five first battery packs (22); the first high-voltage box (21) and one of the first battery packs (22) are stacked in a height direction of the container shell (1) and are located above one of the second battery clusters (3); and the other four first battery packs (22) are stacked in pairs in a height direction of the container shell (1) and are respectively located above the other two of the second battery clusters (3).

8. The container energy storage device according to claim 3, characterized in that: The remaining space (1112) of at least one of the battery compartments (111) that does not accommodate the first battery cluster (2) is left vacant.

9. The container energy storage device according to claim 2, characterized in that: The accommodating cavity (11) further comprises an electrical compartment (112), the electrical compartment (112) being located on one side of the k battery compartments (111) in the length direction of the container shell (1), and the electrical compartment (112) is separated from the adjacent battery compartment (111) by a partition (113); The device further comprises at least one of a second fire-fighting device (5), a power device (6), a cooling device (7) and a confluence device (8) installed in the electrical compartment (112).

10. The container energy storage device according to claim 1, characterized in that: The dimensions of the container shell (1) are the same as those of a standard container.

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