Battery rack, and battery container and energy storage system comprising same

Abstract

A battery rack, a battery container including the same, and a power storage system, which can be configured in various forms according to an installation environment. A battery rack according to one aspect of the present invention comprises: a plurality of battery modules; and a battery rack frame provided with a plurality of unit frames that accommodate the plurality of battery modules therein and that can be stacked in at least two directions.

Description

Technical Field

[0001] The present disclosure relates to a battery rack, a battery container and an energy storage system including the battery rack, and more particularly, to a battery rack and a battery container that can be configured in various forms according to an installation environment, and an energy storage system including the same.

[0002] This application claims priority to Korean Patent Application No. 10-2022-0118026 filed in Korea on September 19, 2022, the disclosure of which is incorporated herein by reference. Background Art

[0003] Currently commercial secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries and lithium secondary batteries, among which lithium secondary batteries have attracted much attention due to their advantages of free charging and discharging, very low self-discharge rate and high energy density, as they have almost no memory effect compared with nickel-based secondary batteries.

[0004] These lithium secondary batteries mainly use lithium-based oxides and carbon materials as positive and negative active materials, respectively. The lithium secondary battery includes: an electrode assembly, in which a positive electrode plate and a negative electrode plate coated with a positive electrode active material and a negative electrode active material, respectively, are placed with a separator therebetween; and an outer casing, i.e., a battery casing, which seals and stores the electrode assembly together with an electrolyte.

[0005] Generally, lithium secondary batteries may be classified into can-type secondary batteries in which an electrode assembly is accommodated in a metal can and pouch-type secondary batteries in which an electrode assembly is accommodated in a pouch of an aluminum laminate sheet, according to the shape of an outer case.

[0006] Secondary batteries can be used alone, but generally, multiple secondary batteries can be configured to be electrically connected in series and / or in parallel with each other. In particular, multiple secondary batteries can be electrically connected to each other and stored in one module housing to configure one battery module. In addition, a battery module can be used alone, or two or more of the battery modules can be electrically connected to each other in series and / or in parallel to configure a higher-level device, such as a battery rack or a battery pack.

[0007] With recent issues such as power shortages and eco-friendly energy, energy storage systems (ESS) for storing generated electricity are receiving more attention. For example, smart grid systems are proposed as one of the ways to control power supply and demand. The amount of electricity used by consumers is not constant and may fluctuate from time to time. A typical example is that power consumption increases significantly in the summer afternoon due to the use of air conditioning units, and then decreases rapidly at night. In this way, power consumption may not be constant and may fluctuate frequently in terms of power consumption, but even if power generation is controlled to some extent, it is actually difficult to meet this power consumption in terms of power supply. Therefore, this imbalance between power supply and consumption may lead to over-powering or insufficient power, and smart grid systems are able to flexibly store and control power to solve this problem. Smart grid systems provide a concept in which power is stored at a time or area where excess power is generated, and the stored power is supplied at a time or area where power shortage occurs. One of the key elements in building such a smart grid system is an energy storage system for storing power. In addition, since electric vehicles are widely commercialized today, energy storage systems can be used in facilities for charging electric vehicles, such as charging stations.

[0008] Generally, such an energy storage system may be configured to include a large number of battery containers to ensure a large charge and discharge capacity. In addition, each battery container may include a plurality of battery racks, and each battery rack may include a plurality of battery modules. These energy storage systems may require various performances. In particular, in the energy storage system, a plurality of battery containers may be installed to be connected to each other.

[0009] At the same time, the existing energy storage system does not have a standardized frame structure for the battery rack, resulting in the problem that a separate frame structure must be constructed if the installation environment is limited or changes. That is, it is difficult for the conventional energy storage system to configure the battery rack into various forms according to the installation environment. Utility Model Content

[0010] Technical issues

[0011] The present disclosure is designed to solve the problems of the prior art. Therefore, an object of the present disclosure is to provide a battery rack and a battery container that can be configured in various forms according to an installation environment, and an energy storage system including the same.

[0012] However, the technical problems to be solved by the present disclosure are not limited to the above problems, and those skilled in the art will clearly understand other problems not mentioned above from the description of the present disclosure described below.

[0013] Technical Solution

[0014] According to one aspect of the present disclosure, a battery rack is provided, comprising a plurality of battery modules and a battery rack frame, wherein the battery rack frame is configured to accommodate the plurality of battery modules therein and comprises a plurality of unit frames, wherein the plurality of unit frames are configured to be stackable in two or more directions.

[0015] Preferably, the plurality of unit frames may be stacked in a left-right direction of the battery rack frame, and the plurality of unit frames may be configured to have the same height.

[0016] Preferably, the plurality of unit frames may include a first frame and a second frame, the first frame being configured to accommodate a first battery pack including at least one battery module therein, and the second frame being configured to accommodate a second battery pack including at least one battery module therein and being located in a different column from the first frame.

[0017] Preferably, the battery rack may further include an electrical equipment module accommodated inside the plurality of unit frames and configured to control the plurality of battery modules, and the electrical equipment module may be configured to control the first battery pack and the second battery pack and be configured to be accommodated in the first frame or the second frame.

[0018] Preferably, the electrical device module may be configured to be located above the first battery pack inside the first frame or to be located above the second battery pack inside the second frame.

[0019] Preferably, the plurality of unit frames may be stacked in an up-and-down direction, and the plurality of unit frames may be configured to have the same height.

[0020] Preferably, the plurality of unit frames may include a first frame configured to accommodate a first battery pack including at least one battery module therein and a second frame configured to accommodate a second battery pack including at least one battery module therein and be disposed below the second frame.

[0021] Preferably, the battery rack may also include an electrical equipment module accommodated inside the multiple unit frames and configured to control the multiple battery modules, and the electrical equipment module may be configured to control the first battery group and the second battery group, and be configured to be accommodated in the first frame or the second frame stacked on each other in the up and down directions.

[0022] Preferably, the electrical device module is located above the first battery pack inside the first frame.

[0023] Preferably, the plurality of unit frames may be stacked in a front-rear direction of the battery rack frame, and the plurality of unit frames may be configured to have the same height.

[0024] Preferably, each of the multiple unit frames may include: a main frame, which is configured to form a accommodating space capable of accommodating the multiple battery modules; and a plurality of horizontal plates, which are connected to the main frame to extend in a horizontal direction and are configured to support the multiple battery modules in an upward direction, and the horizontal plates may be configured to be able to be folded in at least one direction.

[0025] A battery container according to another aspect of the present disclosure includes at least one of the above-mentioned battery racks according to one aspect of the present disclosure.

[0026] An energy storage system according to another aspect of the present disclosure includes at least one battery rack according to one aspect of the present disclosure.

[0027] Beneficial effects

[0028] According to the present disclosure, the battery rack can be configured in various forms according to the installation environment. Therefore, the desired output voltage of the battery rack can be obtained while configuring the battery modules to be compactly arranged inside the battery rack frame in a limited installation space.

[0029] In addition, in the case where the form of the battery rack changes according to the installation environment, since a standardized unit frame is used, even if the structure of the battery rack changes, the corresponding unit frame can accommodate the same number of battery modules. Therefore, the same output voltage can be ensured before and after changing the structure of the battery rack.

[0030] In addition, various embodiments of the present disclosure may provide various other additional effects. Various effects of the present disclosure will be explained in detail in the corresponding embodiments, or descriptions of effects that are easily understood by those skilled in the art will be omitted. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings illustrate preferred embodiments of the present disclosure and, together with the detailed description of the present disclosure, serve to provide further understanding of the technical concept of the present disclosure, and therefore, the present disclosure is not to be construed as being limited to the accompanying drawings.

[0032] Figure 1 is a diagram showing an example of a battery rack according to an embodiment of the present disclosure.

[0033] Figure 2 It is shown Figure 1 Figure 2. The rear of the battery rack.

[0034] Figure 3 It shows that the setting Figure 1 Figure 2 shows a diagram of a battery module in a battery rack.

[0035] Figure 4 and Figure 5 It is shown Figure 1FIG. 4 is a diagram of a modified example of a battery rack.

[0036] Figure 6 and Figure 7 It is shown Figure 1 FIG. 1 is a diagram of another modified example of the battery rack in FIG.

[0037] Figure 8 It is shown Figure 1 FIG. 1 is a diagram of another modified example of the battery rack in FIG.

[0038] Fig. 9 is a diagram illustrating a battery rack according to another embodiment of the present disclosure.

[0039] Fig.10 is a diagram illustrating a battery container according to an embodiment of the present disclosure.

[0040] Fig.11 is a diagram illustrating an energy storage system according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. Before the description, it should be understood that the terms used in the specification and the appended claims should not be interpreted as limited to the general and dictionary meanings, but are interpreted based on the principle that the inventor is allowed to appropriately define the terms for the best interpretation, based on the meanings and concepts corresponding to the technical aspects of the present disclosure.

[0042] Therefore, the configurations proposed in the embodiments and drawings of this specification are only the most preferred embodiments of the present disclosure and do not represent all technical ideas of the present disclosure. Therefore, it should be understood that various equivalents and modifications may be made thereto when submitting this application.

[0043] Figure 1 is a diagram showing an example of a battery rack 10 according to an embodiment of the present disclosure, Figure 2 It is shown Figure 1 FIG. 10 is a diagram of the rear portion of the battery rack 10, and Figure 3 It shows that the setting Figure 1 FIG. 1 is a diagram of a battery module 100 in a battery rack 10 in FIG.

[0044] In an embodiment of the present disclosure, the X-axis direction may represent the left-right direction, the Y-axis direction may represent the front-back direction perpendicular to the X-axis direction on a horizontal plane (XY plane), and the Z-axis direction may represent the up-down direction perpendicular to both the X-axis direction and the Y-axis direction.

[0045] Reference Figures 1 to 3 , the battery rack 10 according to an embodiment of the present disclosure may include a plurality of battery modules 100 and a battery rack frame 200 .

[0046] The battery module 100 may include a cell assembly 110 and a module case 120 .

[0047] The cell assembly 110 may include at least one battery cell. Here, the battery cell may indicate a secondary battery. These battery cells may be prepared as pouch-type battery cells, cylindrical battery cells, or prismatic battery cells. For example, the battery cell may be a pouch-type battery cell.

[0048] The module case 120 may accommodate the cell assembly 110 therein. To this end, the module case 120 may have an internal accommodation space to accommodate the cell assembly 110 therein.

[0049] The plurality of battery modules 100 may constitute a plurality of battery groups including a first battery group B1 and a second battery group B2. For example, each of the first battery group B1 and the second battery group B2 may include at least one battery module 100.

[0050] The battery rack frame 200 may accommodate the plurality of battery modules 100 therein. To this end, the battery rack frame 200 may include an inner accommodation space for accommodating the plurality of battery modules 100 therein.

[0051] In addition, the battery rack frame 200 may include a plurality of unit frames F. For example, referring to Figure 1 In the configuration of FIG. 1 , four unit frames F may be provided in the battery rack frame 200. Here, the respective unit frames F may be configured to accommodate a plurality of battery modules 100 therein and may be stacked in two or more directions.

[0052] Specifically, the plurality of unit frames F may be configured to be stackable in the left-right, front-back, and up-down directions of the battery rack frame 200. Exemplarily, the plurality of unit frames F may be configured such that one unit frame F has other unit frames F stacked thereon or therebelow. Alternatively, the plurality of unit frames F may be configured such that one unit frame F has other unit frames F stacked thereon on the left or right.

[0053] For example, one unit frame F of the present disclosure may have an accommodation space capable of accommodating 12 battery modules 100. If the unit frames F are stacked in two or more directions, the battery rack frame 200 may accommodate more battery modules 100 therein to have a higher output voltage than a single unit frame F.

[0054] Meanwhile, for example, if a specific battery rack includes 22 battery modules arranged in a row, the battery rack may provide an output voltage of about 1300 V. At this time, if the height of the installation space of the battery rack is less than the height of the battery rack, it may be difficult to place the battery rack in the installation space.

[0055] In addition, even in the case of changing the structure of the battery rack to reduce the height of the battery rack and increase the width of the battery rack, it is difficult to compactly arrange the battery modules inside the battery rack due to the non-uniform specifications between the two or more battery rack frames. In addition, since the specifications of the two or more battery rack frames are not uniform, there is a problem that the number of battery modules accommodated in the battery rack frame varies before and after the structure of the battery rack is changed, so that the overall output voltage is different.

[0056] On the other hand, the battery rack 10 in the present disclosure configures the battery rack frame 200 having the unit frames F stacked in two or more directions according to the characteristics of the installation space using the standardized unit frames F, and the battery rack 10 may be configured in various forms according to the installation environment.

[0057] According to this embodiment of the present disclosure, the battery rack 10 can be configured in various forms according to the installation environment. Therefore, the desired output voltage of the battery rack 10 can be obtained while configuring the battery module 100 to be compactly arranged inside the battery rack frame 200 in a limited installation space.

[0058] In addition, when the form of the battery rack 10 is changed according to the installation environment, since the standardized unit frame F is used, even if the structure of the battery rack 10 is changed, the corresponding unit frame F can accommodate the same number of battery modules 100. Therefore, the same output voltage can be ensured before and after the structure of the battery rack 10 is changed.

[0059] Meanwhile, each of the plurality of unit frames F described above may include a main frame 210 and a horizontal plate 220 .

[0060] The main frame 210 may be formed to extend in the up-down direction. The main frame 210 may be configured in a column shape. The main frame 210 may form an accommodation space capable of accommodating a plurality of battery modules 100 inside each unit frame F.

[0061] When the unit frames F are stacked in two or more directions to form the battery rack frame 200, the main frames 210 of the respective unit frames F may be coupled to each other by bolt connection. This configuration allows the unit frames F of the battery rack frame 200 to be disconnected and the unit frames F to be stacked in a different form when the installation environment changes. Therefore, the form of the battery rack 10 may be adaptively and easily changed according to the installation environment. However, the main frames 210 of the respective unit frames F are not limited to the above-mentioned coupling method, and may also be coupled to each other by welding.

[0062] The horizontal plate 220 may be connected to the main frame 210 to extend in the horizontal direction, and the plurality of horizontal plates may be configured to support the plurality of battery modules 100 in the upward direction. In this case, the plurality of battery modules 100 may be placed on the plurality of horizontal plates 220 and stored in the unit frame F. Specifically, the plurality of battery modules 100 may be accommodated in the unit frame F through the horizontal plates 220 to be stacked in the up-and-down direction.

[0063] Figure 4 and Figure 5 It is shown Figure 1 FIG. 1 is a diagram of a modified example of the battery rack 10 .

[0064] Figure 4 and Figure 5 The illustrated battery rack 10 is configured such that the respective unit frames F are stacked in the left-right direction of the battery rack frame 200 .

[0065] For example, Figure 4 and Figure 5 As shown, two unit frames F may be provided to be stacked in the left-right direction of the battery rack frame 200. At this time, the unit frames F may be configured in one row and two columns.

[0066] In this case, the plurality of unit frames F may be configured to have the same height. That is, the respective unit frames F may be configured to accommodate the same number of battery modules 100 .

[0067] This embodiment makes it possible to ensure the same output voltage before and after the structural change even if the form of the battery rack 10 is changed according to the installation environment. Specifically, since the battery rack 10 of the present disclosure uses a standardized unit frame F, even if the battery rack is switched from a two-row and one-column structure to a one-row and two-column structure, the corresponding unit frame F can have the same number of battery modules 100. In other words, since the battery rack 10 of the present disclosure has a unified specification for the unit frame F, even if the structure of the battery rack 10 is changed, the overall output voltage can be the same as before the structural change.

[0068] Therefore, it is possible to provide a battery rack 10 that can be used in various forms while ensuring the same output voltage. In particular, according to this embodiment of the present disclosure, when the height of the installation space is limited, it is easy to change the overall form of the battery rack 10.

[0069] Return to reference Figure 4 and Figure 5 , the plurality of unit frames F may include a first frame F1 and a second frame F2.

[0070] The first frame F1 may accommodate a first battery pack B1 including at least one battery module 100 therein.

[0071] The second frame F2 may accommodate a second battery pack B2 including at least one battery module 100 therein.

[0072] In this case, the second frame F2 may be configured to be located in a different column from the first frame F1. In particular, the first frame F1 and the second frame F2 located in different columns may be configured to be in close contact with each other in the left-right direction of the battery rack frame 200.

[0073] Therefore, even if the form of the battery rack 10 is changed according to the installation environment, it is possible to compactly configure the entire arrangement of the battery rack 10 in a limited installation space, and to ensure the same output voltage before and after the structural change.

[0074] Return to reference Figure 4 and Figure 5 The battery rack 10 may further include an electrical device module 300 .

[0075] The electrical device module 300 may be housed inside a plurality of unit frames F and configured to control a plurality of battery modules 100. For example, the electrical device module 300 may be a battery protection unit. As an example, such a battery protection unit may include a DC contactor, a fuse, and / or a battery management system.

[0076] In particular, the electric device module 300 may be configured to control the first battery pack B1 and the second battery pack B2. For example, the electric device module 300 may be configured to control the first battery pack B1 and the second battery pack B2 having an output voltage of approximately 1300V.

[0077] In addition, the electric device module 300 may be configured to be accommodated in the first frame F1 or the second frame F2 .

[0078] In the case of the unit frames F stacked in the left-right direction of the battery rack frame 200 as described above, since the electrical equipment module 300 can be accommodated in either the first frame F1 or the second frame F2, the position of the electrical equipment module 300 inside the battery rack frame 200 can be freely adjusted while the battery module 100 and the electrical equipment module 300 are compactly arranged inside the battery rack frame 200.

[0079] Specifically, Figure 4 and Figure 5 As shown, the electric device module 300 may be configured to be located above the first battery pack B1 inside the first frame F1 or above the second battery pack B2 inside the second frame F2.

[0080] Therefore, damage to the electric device module 300 due to the load of the battery module 100 may be minimized, and a plurality of battery packs may be easily controlled.

[0081] Figure 6 and Figure 7 It is shown Figure 1 FIG. 1 is a diagram of another modified example of the battery rack 10 .

[0082] Figure 6 and Figure 7 The illustrated battery rack 10 is configured such that the respective unit frames F are stacked in the up-and-down direction of the battery rack frame 200 .

[0083] For example, you can Figure 6 and Figure 7 As shown, two unit frames F are provided to be stacked in the up-and-down direction. At this time, the unit frames F may be arranged in two rows and one column.

[0084] In this case, the plurality of unit frames F may be configured to have the same height. That is, the respective unit frames F may be configured to accommodate the same number of battery modules 100 .

[0085] This embodiment makes it possible to ensure the same output voltage before and after the structural change even if the form of the battery rack 10 is changed according to the installation environment. Specifically, since the battery rack 10 of the present disclosure uses a standardized unit frame F, even if the battery rack is switched from a one-row and two-column structure to a two-row and one-column structure, the corresponding unit frame F can have the same number of battery modules 100. In other words, since the battery rack 10 of the present disclosure has a unified specification for the unit frame F, even if the structure of the battery rack 10 is changed, the overall output voltage can be the same as before the structural change.

[0086] Therefore, the battery rack 10 that can be used in various forms while ensuring the same output voltage can be provided. In particular, according to this embodiment of the present disclosure, when the installation space is limited in terms of the width of the installation space, the overall form of the battery rack 10 is easily changed.

[0087] like Figure 6 and 7 As shown, the plurality of unit frames F may include a first frame F1 and a second frame F2.

[0088] The first frame F1 may accommodate a first battery pack B1 including at least one battery module 100 therein.

[0089] The second frame F2 may accommodate a second battery pack B2 including at least one battery module 100 therein.

[0090] In this case, the second frame F2 may be configured to be placed below the first frame F1. In particular, the first frame F1 and the second frame F2 configured to be stacked in the up-down direction may be configured to be in close contact with each other in the up-down direction.

[0091] Therefore, even if the form of the battery rack 10 is changed according to the installation environment, it is possible to compactly configure the entire arrangement of the battery rack 10 in a limited installation space, and to ensure the same output voltage before and after the structural change.

[0092] Return to reference Figure 6 and Figure 7 The battery rack 10 may further include an electrical device module 300 .

[0093] The electric device module 300 may be accommodated inside the plurality of unit frames F and configured to control the plurality of battery modules 100 .

[0094] The electric device module 300 may be configured to control the first battery pack B1 and the second battery pack B2. For example, the electric device module 300 may be configured to control the first battery pack B1 and the second battery pack B2 having an output voltage of about 1300V.

[0095] In particular, the electric device module 300 according to the present embodiment may be configured to be accommodated in the first frame F1 or the second frame F2 stacked in the up-down direction.

[0096] In the case of the unit frames F stacked in the up and down directions of the battery rack frame 200 as described above, since the electrical equipment module 300 can be accommodated in one of the first frame F1 or the second frame F2, the position of the electrical equipment module 300 inside the battery rack frame 200 can be freely adjusted while the battery module 100 and the electrical equipment module 300 are compactly arranged inside the battery rack frame 200.

[0097] In particular, if Figure 6 and Figure 7 As shown, the electric device module 300 may be configured to be accommodated inside the first frame F1. Preferably, the electric device module 300 may be configured to be located above the first battery pack B1 inside the first frame F1.

[0098] Therefore, damage to the electric device module 300 due to the load of the battery module 100 may be minimized, and a plurality of battery packs may be easily controlled.

[0099] Meanwhile, in the battery rack 10 according to the embodiment of the present disclosure, as Figure 1 and Figure 2 As shown, the corresponding unit frames F can be stacked in the left-right direction and the up-down direction of the battery rack frame 200. Figure 1 and Figure 2 As shown, four unit frames F may be stacked in the left-right direction and the up-down direction of the battery rack frame 200. In this case, the unit frames F may be arranged in two rows and two columns.

[0100] in this case, Figure 1 and Figure 2 The battery rack 10 shown may be configured such that the first frame F1 and the second frame F2 are stacked in the up-down direction, and such that another first frame F1 and another second frame F2 are also stacked in the left-right direction of the battery rack frame 200. The respective unit frames F stacked in the above manner may be configured to be in close contact with each other. In addition, the second frame F2 may be configured to be placed below the first frame F1.

[0101] In addition, Figure 1 and Figure 2 In the illustrated battery rack 10 , the electrical device module 300 may include a first electrical device module 310 and a second electrical device module 320 .

[0102] The first electrical device module 310 may be configured to control the first battery pack B1 and the second battery pack B2 accommodated in a set of the first frame F1 and the second frame F2 stacked in the up-down direction. For example, the first electrical device module 310 may be configured to control the first battery pack B1 and the second battery pack B2 having an output voltage of approximately 1300 V. In this case, the first electrical device module 310 may be configured to be located above the first battery pack B1 inside the first frame F1.

[0103] The second electrical device module 320 may be configured to control the first battery group B1 and the second battery group B2 accommodated in another set of first frames F1 and the second frame F2 stacked in the left-right direction of the battery rack frame 200 relative to the set of first frames F1 and the second frame F2 stacked in the up-down direction. For example, the second electrical device module 320 may be configured to control the first battery group B1 and the second battery group B2 having an output voltage of about 1300 V. In this case, the second electrical device module 320 may be configured to be located above the first battery group B1 inside the first frame F1.

[0104] therefore, Figure 1 and Figure 2 The illustrated battery rack 10 may be configured to have an output voltage of approximately 2600V.

[0105] As described above, since the unit frames F of the present disclosure are configured to accommodate the same number of battery modules 100 , the form of the battery rack 10 may be easily changed in order to obtain a greater output voltage without changing the structure of the corresponding unit frames F.

[0106] Figure 8 It is shown Figure 1 FIG. 1 is a diagram of another modified example of the battery rack 10 .

[0107] Figure 8 The illustrated battery rack 10 is configured such that the respective unit frames F are stacked in the front-rear direction of the battery rack frame 200 .

[0108] In this case, the respective unit frames F may be configured to have the same height. That is, the respective unit frames F may be configured to accommodate the same number of battery modules 100 .

[0109] This embodiment makes it possible to ensure the same output voltage before and after the structural change even if the form of the battery rack 10 is changed according to the installation environment. In other words, it is possible to provide a battery rack 10 that can be used in various forms while ensuring the same output voltage.

[0110] Fig. 9 is a diagram showing a battery rack 12 according to another embodiment of the present disclosure.

[0111] Since the battery rack 12 according to the present embodiment is similar to the battery rack 10 of the previous embodiment, redundant description of elements substantially the same as or similar to those of the previous embodiment will be omitted, and hereinafter, description will be made based on differences from the previous embodiment.

[0112] refer to Fig. 9 In the battery rack 12 , each of the plurality of unit frames F may include a main frame 210 and a horizontal plate 222 .

[0113] Unlike the horizontal plate 220 in the previous embodiment, the horizontal plate 222 in this embodiment may be configured to be foldable in at least one direction.

[0114] For example, the horizontal plate 222 may be configured to be foldable in at least one of the left-right direction and the up-down direction of the battery rack frame 200. In particular, the horizontal plate 222 may be configured to easily return to its initial state from a folded state and easily support the battery module 100. For example, the horizontal plate 222 may be made of a strong elastic material, but is not limited thereto.

[0115] As described above, the electric device module 300 may be placed above the battery modules 100 stacked in the up-down direction inside the battery rack frame 200. The height of the electric device module 300 may be slightly greater than the height of the battery module 100.

[0116] Meanwhile, in the aforementioned embodiment, the plurality of horizontal plates 220 may be configured such that a vertical spacing therebetween corresponds to the height of the battery module 100 , thereby compactly stacking the battery module 100 inside the battery rack frame 200 .

[0117] Therefore, in the aforementioned embodiment, in order to prevent interference between the electric device module 300 having a height greater than that of the battery module 100 and the horizontal plate 220 , the horizontal plate 220 may not be provided in the region of the battery rack frame 200 where the electric device module 300 is placed.

[0118] On the other hand, in the battery rack 12 according to the present embodiment, since the horizontal plate 222 is configured to be foldable in at least one direction, even if the electrical equipment module 300 is placed between the battery modules 100 stacked in the up and down directions as needed, the arrangement of the electrical equipment module 300 and the battery module 100 can be compactly configured without interfering with the horizontal plate 222.

[0119] Therefore, according to the battery rack 12 of the present embodiment, the arrangement of the battery modules 100 and the electric device modules 300 can be easily changed inside the battery rack 10 as needed.

[0120] Fig.10 is a diagram showing a battery container 1 according to an embodiment of the present disclosure.

[0121] refer to Fig.10 The battery container 1 may include at least one of the above-mentioned battery racks 10. In one embodiment, two or more battery racks 10 may be provided, and the battery container 1 may have an accommodation space for accommodating the battery racks 10.

[0122] Fig.11 is a diagram showing an energy storage system S according to an embodiment of the present disclosure.

[0123] refer to Fig.11 , at least one battery rack 10 may be provided to constitute an energy storage system S. Specifically, at least one of the above-mentioned battery containers 1 may be provided to constitute an energy storage system S. The energy storage system S may constitute a link group by a combination of a predetermined number of battery containers 1 and a control container (E-Link) (not shown). For example, the control container may perform overall control or diagnosis of the battery container 1. In addition, the control container may include a DC part, an AC part, and a BSC part to control the battery container 1. At the same time, each control container may be connected to a PCS.

[0124] As described above, although the present disclosure has been described with reference to limited embodiments and drawings, the present disclosure is not limited thereto, and various modifications and changes are possible within the technical concept of the present disclosure and the equivalent scope of the claims to be described below by those skilled in the art to which the present disclosure belongs.

[0125] Meanwhile, although terms indicating directions such as up, down, left, right, front, and back are used in this specification, it is obvious to those skilled in the art that these terms are merely for ease of explanation and may vary depending on the position of the target object or the position of the observer.

[0126] As described above, although the present disclosure has been described with reference to limited embodiments and drawings, the present disclosure is not limited thereto, and various modifications and changes are possible within the technical concept of the present disclosure and the equivalent scope of the claims to be described below by those skilled in the art to which the present disclosure belongs.

[0127] [Explanation of symbols]

[0128] S: Energy storage system

[0129] 1: Battery container

[0130] 10, 12: Battery rack

[0131] 100: Battery module

[0132] B1: First battery pack

[0133] B2: Second battery pack

[0134] 200: Battery rack frame

[0135] F: Unit frame

[0136] F1: First Frame

[0137] F2: Second frame

[0138] 210: Main frame

[0139] 220, 222: Horizontal plate

[0140] 300: Electrical equipment module

Claims

1. A battery rack, comprising: Multiple battery modules; as well as A battery rack frame is configured to accommodate the plurality of battery modules therein, and includes a plurality of unit frames configured to be stackable in two or more directions.

2. The battery rack according to claim 1, in, The plurality of unit frames are stacked in the left-right direction of the battery rack frame, and Wherein, the plurality of unit frames are configured to have the same height.

3. The battery rack according to claim 2, in, The plurality of unit frames include: a first frame configured to accommodate a first battery pack including at least one battery module therein; and A second frame is configured to accommodate a second battery pack including at least one battery module therein and is located in a different column from the first frame.

4. The battery rack according to claim 3, further comprising: an electric device module housed inside the plurality of unit frames and configured to control the plurality of battery modules, wherein the electrical device module is configured to control the first battery pack and the second battery pack, and The electrical equipment module is configured to be received in the first frame or the second frame.

5. The battery rack according to claim 4, in, The electrical equipment module is configured to: Above the first battery pack within the first frame; or The second battery pack is located above the second frame.

6. The battery rack according to claim 1, in, The plurality of unit frames are stacked in an up-and-down direction, and Wherein, the plurality of unit frames are configured to have the same height.

7. The battery rack according to claim 6, in, The plurality of unit frames include: a first frame configured to accommodate a first battery pack including at least one battery module therein; and A second frame configured to accommodate a second battery pack including at least one battery module therein and disposed below the second frame.

8. The battery rack according to claim 7, further comprising: an electric device module housed inside the plurality of unit frames and configured to control the plurality of battery modules, wherein the electrical device module is configured to control the first battery pack and the second battery pack, and The electric device module is configured to be accommodated in the first frame or the second frame stacked on each other in the up-down direction.

9. The battery rack according to claim 8, in, The electric device module is configured to be located above the first battery pack inside the first frame.

10. The battery rack according to claim 1, in, The plurality of unit frames are stacked in the front-rear direction of the battery rack frame, and Wherein, the plurality of unit frames are configured to have the same height.

11. The battery rack according to claim 1, in, Each of the plurality of unit frames comprises: a main frame configured to form an accommodation space capable of accommodating the plurality of battery modules; and a plurality of horizontal plates connected to the main frame to extend in a horizontal direction and configured to support the plurality of battery modules in an upward direction, and Wherein, the horizontal plate is configured to be foldable in at least one direction.

12. A battery container comprising at least one battery rack according to any one of claims 1 to 11.

13. An energy storage system comprising at least one battery rack according to any one of claims 1-11.

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