Energy storage bin, energy storage device, energy storage system and charging network

Abstract

An energy storage bin (100), an energy storage device, an energy storage system (2000) and a charging network (1000), the energy storage bin comprising a bin body (10), a control module (30) and a plurality of energy units (2), the size of the bin body in the height direction being smaller than the size of a standard container in the height direction, the size of the bin body in the length direction being consistent with the size of the standard container in the length direction, the size of the bin body in the width direction is consistent with the size of a standard container in the width direction, the multiple energy units are contained in the bin body, the control module is contained in the bin body and comprises a master control module (303), the master control module is used for electrically controlling the multiple energy units, and the weight of the energy storage bin is smaller than or equal to 45 tons.

Description

Energy storage warehouses, energy storage devices, energy storage systems and charging networks

[0001] This disclosure is based on application number PCT / CN2024 / 112473, filed on August 15, 2024, application number PCT / CN2024 / 112498, filed on August 15, 2024, application number PCT / CN2024 / 111558, filed on August 12, 2024, application number PCT / CN2024 / 112387, filed on August 15, 2024, application number 202421984591.6, filed on August 15, 2024, application number PCT / CN2024 / 112558, filed on August 15, 2024, application number PCT / CN2024 / 106588, filed on July 19, 2024, application number PCT / CN2024 / 106589, filed on July 19, 2024, The present invention relates to a patent application filed on July 9, 2024, with application number PCT / CN2024 / 104575, filed on July 9, 2024, with application number PCT / CN2024 / 086624, filed on April 8, 2024, with application number PCT / CN2024 / 104413, filed on July 9, 2024, with application number 202322858858.9, filed on October 24, 2023, with application number PCT / CN2024 / 086600, filed on April 8, 2024, and with application number PCT / CN2024 / 127187, filed on October 24, 2024, and claims priority to the above-mentioned patent applications, the entire contents of which are hereby incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the field of battery technology, and in particular to an energy storage bin, an energy storage device, an energy storage system, and a charging network. Background Art

[0003] With the rapid development of science and technology, electricity has become an indispensable energy source for people's production and daily life. To ensure the smooth supply of electricity and the normal operation of production and life, energy storage silos are needed. Energy storage silos serve as devices for the cyclic storage and release of electrical energy. By charging or discharging the silos, electricity is stored in the silos or supplied to electrical devices. Energy storage silos are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power stations.

[0004] In the development of energy storage, in addition to improving its performance, reducing its operating costs is also an important issue that cannot be ignored. Therefore, reducing the operating costs of energy storage is a technical issue that requires continuous improvement in energy storage technology. Summary of the Invention

[0005] In view of this, the embodiments of the present disclosure hope to provide an energy storage warehouse, an energy storage device, an energy storage system and a charging network that can reduce the cost of using the energy storage warehouse.

[0006] To achieve the above objectives, a first aspect of an embodiment of the present disclosure provides an energy storage warehouse, comprising:

[0007] a warehouse body, wherein the height of the warehouse body is smaller than the height of a standard container, the length of the warehouse body is consistent with the length of the standard container, and the width of the warehouse body is consistent with the width of the standard container;

[0008] A plurality of energy units, wherein the plurality of energy units are accommodated in the warehouse;

[0009] A control module, the control module being housed in the compartment, the control module including a master control module, the master control module being used to electrically control the plurality of energy units;

[0010] Wherein, the weight of the energy storage bin is less than or equal to 45 tons.

[0011] The energy storage bin provided by the embodiment of the present disclosure, by controlling the weight of the energy storage bin to be less than or equal to 45 tons, helps to improve the problem of overweight transportation, reduces the transportation cost of the energy storage bin, and thus reduces the cost of using the energy storage bin. At the same time, it also means that under the premise of meeting the transportation weight, the size of the bin body can be adjusted according to the energy density requirements, which is convenient for improving the flexibility of the bin body capacity and matching different needs. For example, the size of the bin body can be made as large as possible, and the volume and power of the energy storage bin can be increased as much as possible, thereby reducing the cost of using the energy storage bin. In addition, by arranging the control module and multiple energy units in the bin body, it is helpful to improve the integration of the energy storage bin and reduce the workload of on-site installation, so that the energy storage bin can be used alone or multiple energy storage bins can be stacked together for use, thereby improving the versatility and application flexibility of the energy storage bin. In addition, by setting the size of the bin body along its length direction to be consistent with the size of the length direction of the standard container and the size of the bin body along its width direction to be consistent with the size of the width direction of the standard container, it is helpful to match the transportation tools and slings of existing standard containers, reducing the transportation cost of the energy storage device, and thus reducing the cost of using the energy storage bin.

[0012] In some embodiments, the dimension of the warehouse body along the height direction is greater than or equal to one third of the dimension of the standard container along the height direction.

[0013] The size of the warehouse body cannot be infinitely small. When the size of the warehouse body along the height direction is greater than or equal to one-third of the size of the standard container along the first direction, the energy storage warehouse has high manufacturability, high volume energy density, and is more convenient to transport and install. It is also conducive to improving the problem of overweight transportation, reducing the transportation cost of the energy storage warehouse, and thus reducing the use cost of the energy storage warehouse.

[0014] In some embodiments, the dimension of the warehouse body along the height direction is greater than or equal to half the dimension of the standard container along the height direction.

[0015] When the size of the silo along the height direction is greater than or equal to half the size of a standard container along the height direction, the energy storage silo has high manufacturability, high volume energy density, and is more convenient to transport and install. It is also helpful to improve the problem of overweight transportation, reduce the transportation cost of the energy storage silo, and thus reduce the use cost of the energy storage silo. For example, when the energy storage device includes two stacked energy storage silos, the size of each silo along the height direction is greater than or equal to half the size of a standard container along the height direction. After the two silos are stacked, they are taller than the height of a standard container, but the weight of each energy storage silo containing components such as energy units is lower. With this arrangement, each energy storage silo of the energy storage device can be transported separately, and after being stacked at the place of use, the energy storage device has a higher power.

[0016] In some embodiments, the dimension of the warehouse body along the height direction is greater than or equal to one-third of the dimension of the standard container along the height direction, and less than one-half of the dimension of the standard container along the height direction.

[0017] When the size of the silo along the height direction is greater than or equal to one-third of the size of a standard container along the height direction, and less than half of the size of a standard container along the height direction, the energy storage silo has high manufacturability, high volume energy density, and is more convenient to transport and install. For example, when the energy storage device includes three stacked energy storage silos, the size of each energy storage silo along the height direction is greater than or equal to one-third of the size of a standard container along the height direction, and less than half of the size of a standard container along the height direction. When the three energy storage silos are stacked, they are taller than the height of a standard container, but the weight of each energy storage silo is lower. With this arrangement, each energy storage silo can be transported separately, and after being stacked at the place of use, the energy storage device has a higher power consumption.

[0018] In some embodiments, the height dimension of the warehouse body is h, 850mm≤h<2896mm.

[0019] In this embodiment, by setting the height of the warehouse body to 850mm≤h<2896mm, the total weight of the energy storage warehouse can be controlled within 45 tons, and the size of the warehouse body can be adjusted according to the energy density requirements, further reducing the use cost of the energy storage warehouse.

[0020] In some embodiments, 1300 mm ≤ h ≤ 2400 mm.

[0021] In this embodiment, by setting the height of the warehouse body to 1300mm≤h≤2400mm, the total weight of the energy storage warehouse can be controlled within 45 tons, and the size of the warehouse body can be adjusted according to the energy density requirements, further reducing the use cost of the energy storage warehouse.

[0022] In some embodiments, the energy storage bin includes a thermal management module, which is housed in the bin body and is used to manage the temperature of the multiple energy units in the energy storage bin.

[0023] In this embodiment, the thermal management module is provided to manage the temperature of the energy unit, reducing the risk of temperature runaway. Furthermore, by placing the thermal management module within the silo, the integration of the energy storage silo is improved, reducing the workload for on-site installation. This allows the silo to be used individually or as a stack, enhancing its versatility and flexibility.

[0024] In some embodiments, the interior of the warehouse body has an energy warehouse and a control warehouse, the energy warehouse is used to accommodate multiple energy units, at least part of the control modules and / or at least part of the thermal management modules are accommodated in the control warehouse.

[0025] In this embodiment, by arranging an energy compartment and a control compartment inside the warehouse body, and arranging at least part of the control module and / or at least part of the thermal management module inside the warehouse body, the space inside the warehouse body can be fully utilized, further improving the space utilization rate of the warehouse body.

[0026] In some embodiments, at least part of the control compartment and the energy compartment are arranged along the height direction of the compartment body; and / or,

[0027] At least part of the control compartment and the energy compartment are arranged along the length direction of the compartment body.

[0028] The control chamber is arranged above the energy chamber, so that the components in the control chamber can block the heat radiation from the top and reduce the impact of heat radiation on the interior of the energy chamber.

[0029] Here, by arranging the control chamber at the end of the chamber body, the space utilization inside the chamber body is maximized. In addition, the control chamber and the energy chamber can be arranged closer, which is conducive to improving the compactness of the structure.

[0030] In some embodiments, the thermal management module is located on the top of the warehouse body; or, the thermal management module and the energy warehouse are arranged along the length direction of the warehouse body.

[0031] In this embodiment, the thermal management module is located at the top of the silo, leaving no obstructions above it. This facilitates heat dissipation from the module, thereby increasing the service life of the energy storage device. This also helps lower the overall center of gravity of the energy storage silo, contributing to safe transportation. Furthermore, the separation from the energy silo improves the silo's thermal insulation. The thermal management module shields the silo from heat radiation from the top, reducing its impact on the interior of the silo.

[0032] Here, by arranging the thermal management module at the end of the warehouse body, the space utilization inside the warehouse body is maximized.

[0033] In some embodiments, the control module and the energy bin are arranged along the height direction of the bin body; or,

[0034] The control module and the energy bin are arranged along the length direction of the bin body.

[0035] That is to say, the control module can be located at the left end of the energy bin, or at the right end of the energy bin, or in the middle of the two energy bins along the length direction.

[0036] The control module can be located above the energy bin, below the energy bin, or in the middle of the two energy bins in the height direction.

[0037] In some embodiments, the control module and the thermal management module are arranged along the height direction of the warehouse body; and / or,

[0038] The control module and the thermal management module are arranged along the length direction of the warehouse body; and / or,

[0039] The control module and the thermal management module are arranged along the width direction of the chamber, and the thermal management module is arranged in front of the control module; and / or,

[0040] The thermal management module is arranged at the top of the energy bin, and the control module is arranged at the bottom of the energy bin.

[0041] The thermal management module is located on top of the control module. There are no obstructions above the thermal management module, which facilitates heat dissipation. The thermal management module is separated from the control module by a partition. This partition isolates the thermal management module from the control module, minimizing interference from the thermal management module on the control module. Specifically, it reduces electromagnetic interference from high-voltage lines on low-voltage lines and mitigates the effects of external rainfall or sunlight on the control module.

[0042] In this embodiment, the thermal management module is arranged on the front side of the control module, that is, the thermal management module is arranged on the side of the warehouse body close to the battery compartment door, and the water inlet and outlet of the heat exchange pipeline are also arranged on the side of the warehouse body close to the battery compartment door. This is beneficial to the connection between the thermal management module and the heat exchange pipeline, and can also reduce the number of elbows in the heat exchange pipeline, thereby reducing the flow resistance and improving the temperature control effect of the thermal management module.

[0043] In some embodiments, the tank body includes a partition;

[0044] The partition is provided between the energy compartment and the control compartment, and the energy compartment and the control compartment share the partition; and / or,

[0045] There are a plurality of control compartments, and the partition is arranged between adjacent control compartments, and the adjacent control compartments share the partition.

[0046] The thermal management module and the control module are separated by a partition. The partition can separate the thermal management module and the control module, which can reduce the interference of the thermal management module on the control module, that is, it can reduce the electromagnetic interference of the high-voltage line to the low-voltage line, and can also reduce the impact of external rainfall or sunlight exposure on the control module.

[0047] In some embodiments, the interior of the partition is filled with a heat insulating medium.

[0048] The heat-insulating medium is beneficial to improving the structural strength of the partition, and can also play a flame retardant and heat-insulating effect, which is beneficial to reducing the heat loss of the energy bin and the impact of external heat on the energy units in the energy bin.

[0049] In some embodiments, the energy compartment is provided with a first compartment door on at least one side along the width direction, and the control compartment is provided with a second compartment door on at least one side along the width direction.

[0050] In this embodiment, it is helpful to reduce the land waste of traditional warehouses that must reserve maintenance channels of more than 3m between adjacent warehouses. Only normal paint repair channels need to be reserved between the grid warehouses, which increases the user's land investment returns and increases the user's energy benefits per unit area.

[0051] In some embodiments, the top wall and / or side wall of the storage body are provided with ventilation holes, and the ventilation holes are used for ventilation of the thermal management module.

[0052] In this embodiment, the vents are located on the top wall of the bin body, which is beneficial to heat dissipation of the thermal management module, so that the thermal management module can have more heat dissipation channels, thereby improving the temperature control effect of the thermal management module.

[0053] In some embodiments, the energy storage compartment includes a plurality of battery devices, each of the battery devices includes a thermal management component and a plurality of the energy units, and the thermal management component is used to regulate the temperature of the energy units;

[0054] The thermal management module is connected to the multiple thermal management components through a liquid cooling pipeline. The liquid cooling pipeline includes a main pipeline and multiple branch pipelines. The multiple branch pipelines are connected to the main pipeline in parallel. The main pipeline is connected to the thermal management module, and the multiple branch pipelines are respectively connected to the multiple thermal management components. The main pipeline is located above the multiple battery devices, or the main pipeline is located below the multiple battery devices.

[0055] Here, by arranging the main pipe above the multiple battery devices, or below the multiple battery devices, the liquid cooling pipe can be shortened, thereby reducing costs and improving cooling efficiency.

[0056] In some embodiments, the control module further includes at least one of a main control module, a power distribution module, and a fire control module.

[0057] The main control module controls the input and output of high-voltage electrical energy to the energy units within the warehouse. The master control module controls the switching operations of the main control module within the warehouse. The fire control module controls the operation of firefighting components, such as fire extinguishers, when a fire occurs due to a temperature imbalance within the warehouse. The power distribution module electrically connects the main control module, master control module, and fire control module to ensure continuity among these modules and maintain their normal operation.

[0058] In some embodiments, the weight of the energy storage bin is M, the total weight of the energy units in the bin is M1, and (M1 / M)×100%≥60%.

[0059] In this way, on the one hand, the weight proportion of energy units in the unit volume of the warehouse body can be increased, and the power of the energy storage device per unit volume can be increased; on the other hand, during the transportation of the energy storage warehouse, more energy units that contribute to the stored energy and are difficult to produce and cannot be completed at the destination are transported, while other structures can be produced at a place closer to the destination without having to be transported or with reduced transportation. After the warehouse body is assembled into an energy storage warehouse, it is beneficial to reduce the transportation cost of the assembled energy storage warehouse.

[0060] In some embodiments, (M1 / M)×100%≥80%.

[0061] This further helps reduce the transportation cost of the assembled energy storage warehouse.

[0062] In some embodiments, the weight of the energy storage bin is M, and a plurality of battery devices are arranged in the bin body. The battery device includes a box body and a plurality of the energy units. The plurality of the energy units are accommodated in the box body. The total weight of the battery device is M2, 70%≤(M2 / M)×100%≤90%.

[0063] It can take into account both the energy density of the energy storage warehouse and the structural strength of the warehouse body, making the warehouse body more practical.

[0064] In some embodiments, the volume of the chamber is V, the total volume of the energy units in the chamber is V1, and (V1 / V)×100%≥30%.

[0065] On the one hand, it can increase the volume ratio of energy units in the unit volume of the warehouse body and increase the power of the energy storage device per unit volume; on the other hand, during the transportation of the energy storage warehouse, more energy units that contribute to the stored energy and are difficult to produce and cannot be completed at the destination are transported, while other functional components of the energy storage warehouse, such as control components, can be produced at a place closer to the destination without having to be transported or with reduced transportation. After the warehouse body is assembled into the energy storage warehouse, it is beneficial to reduce the transportation cost of the assembled energy storage warehouse.

[0066] In some embodiments, (V1 / V)×100%≥50%.

[0067] This is further beneficial to reducing the transportation cost of the assembled energy storage device.

[0068] In some embodiments, the volume of the warehouse is V, and multiple battery devices are arranged in the warehouse. The battery device includes a box and multiple energy units. The multiple energy units are accommodated in the box. The total volume of the battery device is V2, 50%≤(V2 / V)×100%≤80%.

[0069] It can take into account both the energy density of the energy storage device and the structural strength of the warehouse body, and the practicality of the warehouse body is stronger.

[0070] In some embodiments, the energy of the energy storage bin is E, the size of the bin along the length direction is a, the size of the bin along the width direction is b, 250KW / m 2 ≤E / (a×b)≤700KW / m 2 .

[0071] It takes into account the energy density of the energy storage warehouse and the quality setting of the warehouse body, improves the practicality of the energy storage warehouse, and facilitates the transportation of the energy storage warehouse.

[0072] In some embodiments, 450KW / m 2 ≤E / (a×b)≤600KW / m 2 .

[0073] It can further improve the energy density of the energy storage bin and the quality setting of the bin body, making it easier to transport the energy storage bin.

[0074] 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.

[0075] In some embodiments, the energy unit is a battery cell, and the weight of a single energy unit is 5 kg to 60 kg.

[0076] The weight of the energy unit is appropriate so that an appropriate amount of energy units can be placed in the warehouse, and the energy density is moderate while meeting the transportation needs.

[0077] An embodiment of the present disclosure also provides an energy storage device, which includes a plurality of the energy storage bins described above, and the plurality of energy storage bins are arranged along the height direction, length direction and / or width direction of the energy storage bin, and each of the energy storage bins includes the master control module.

[0078] An embodiment of the present disclosure further provides an energy storage system, including a power conversion device and the above-mentioned energy storage device, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0079] An embodiment of the present disclosure further provides a charging network, including a charging pile and the above-mentioned energy storage device or the above-mentioned energy storage system, wherein the energy storage device is used to provide electrical energy to the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] FIG1 is a schematic diagram of the structure of a charging network provided by some embodiments of the present disclosure;

[0081] FIG2 is a schematic structural diagram of an energy storage system provided in some embodiments of the present disclosure;

[0082] FIG3 is a schematic structural diagram of an energy storage bin provided in some embodiments of the present disclosure;

[0083] FIG4 is a schematic diagram of a partial structure of an energy storage bin provided in some embodiments of the present disclosure;

[0084] FIG5 is a layout diagram of energy storage bins according to some embodiments of the present disclosure;

[0085] FIG6 is a schematic structural diagram of an energy storage bin provided in some embodiments of the present disclosure;

[0086] FIG7 is a schematic structural diagram of an energy storage bin provided in some embodiments of the present disclosure;

[0087] FIG8 is a schematic structural diagram of an energy storage bin provided in some embodiments of the present disclosure;

[0088] FIG9 is a schematic structural diagram of an energy storage bin provided in some embodiments of the present disclosure;

[0089] FIG10 is a schematic structural diagram of an energy storage bin provided in some embodiments of the present disclosure;

[0090] FIG11 is a schematic structural diagram of an energy storage bin provided in some embodiments of the present disclosure;

[0091] FIG12 is a schematic structural diagram of an energy storage bin provided in some embodiments of the present disclosure;

[0092] FIG13 is a schematic diagram of the structure of an energy storage bin provided in some embodiments of the present disclosure;

[0093] FIG14 is a schematic diagram of the structure of an energy storage bin provided in some embodiments of the present disclosure;

[0094] FIG15 is a schematic structural diagram of a control module provided in some embodiments of the present disclosure;

[0095] FIG16 is a schematic structural diagram of a battery device provided in some embodiments of the present disclosure.

[0096] Explanation of the reference numerals: 1000, charging network; 2000, energy storage system; 100, energy storage bin; 10, bin body; 101, partition; 102, first bin door; 103, second bin door; 2, energy unit; 3, first connector; 4, second connector; 11, energy bin; 12, control bin; 13, vent; 20, thermal management module; 30, control module; 301, main control module; 302, power distribution module; 303, master control module; 304, fire control module; 50, connecting wire harness; 51, high-voltage wire harness; 52, low-voltage wire harness; 80, battery device; 81, box; 811, first box; 812, second box; 82, thermal management component; 90, liquid cooling pipeline; 91, main pipeline; 92, branch pipeline; 200, charging pile; 300, power conversion device; 3000, power generation device. DETAILED DESCRIPTION

[0097] Unless otherwise specified, all embodiments and optional embodiments of the present disclosure can be combined with each other to form new technical solutions.

[0098] Unless otherwise specified, all technical features and optional technical features disclosed herein can be combined with each other to form a new technical solution.

[0099] With the development of clean energy, more and more devices are using electricity as a driving force. Consequently, power batteries, such as lithium-ion batteries, that can store large amounts of electricity and undergo multiple charge and discharge cycles are rapidly developing. These batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric vehicles, as well as in aerospace and other fields.

[0100] In the embodiment of the present disclosure, the energy unit may be a secondary battery. A secondary battery refers to an energy unit that can be continuously used by activating active materials by charging after the energy unit is discharged.

[0101] The energy unit can be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., which is not limited in the embodiments of the present disclosure.

[0102] An energy cell typically includes an electrode assembly. As an example, the electrode assembly includes a positive electrode, a negative electrode, and a separator, which is positioned between the positive and negative electrodes. During the charge and discharge process of the energy cell, active ions (such as lithium ions) are embedded and released back and forth between the positive and negative electrodes. The separator is positioned between the positive and negative electrodes to prevent short circuits between the positive and negative electrodes while allowing active ions to pass through.

[0103] In some embodiments, the positive electrode may be a positive electrode sheet, which may include a positive electrode current collector and a positive electrode active material disposed on at least one surface of the positive electrode current collector.

[0104] As an example, the positive electrode current collector has two surfaces facing each other in its thickness direction, and the positive electrode active material is provided on either or both of the two facing surfaces of the positive electrode current collector.

[0105] As an example, the positive electrode current collector may be a metal foil, a conductive polymer material, a carbon material or a composite current collector. For example, as the metal foil, a pure metal, an alloy, a surface-treated metal may be used, including but not limited to stainless steel, copper, aluminum, nickel, nickel, titanium or silver. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0106] As an example, the positive electrode active material may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides, and their respective modified compounds. However, the present disclosure is not limited to these materials, and other conventional materials that can be used as positive electrode active materials for batteries may also be used.

[0107] In some embodiments, the negative electrode may be a negative electrode sheet, and the negative electrode sheet may include a negative electrode current collector.

[0108] As an example, the negative electrode current collector may be a metal foil, a conductive polymer material, a carbon material, or a composite current collector. For example, as the metal foil, a pure metal, an alloy, or a surface-treated metal may be used, including but not limited to stainless steel, copper, aluminum, nickel, nickel, titanium, or silver. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material (copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0109] As an example, the negative electrode sheet may include a negative electrode current collector and a negative electrode active material disposed on at least one surface of the negative electrode current collector.

[0110] In some embodiments, the material of the positive electrode current collector may be aluminum, and the material of the negative electrode current collector may be copper.

[0111] In some embodiments, the electrode assembly further includes a separator disposed between the positive electrode and the negative electrode.

[0112] In some embodiments, the separator is a separator. The present disclosure has no particular limitation on the type of separator, and any known separator with a porous structure having good chemical stability and mechanical stability can be selected.

[0113] As an example, the primary material of the separator can be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramic. The separator can be a single-layer film or a multi-layer composite film, without particular limitation. When the separator is a multi-layer composite film, the materials of each layer can be the same or different, without particular limitation. The separator can be a separate component located between the positive and negative electrodes, or it can be attached to the surfaces of the positive and negative electrodes. The surface of the separator can also be coated with an inorganic particle coating, an organic particle coating, or an organic / inorganic composite coating.

[0114] In some embodiments, the separator is a solid electrolyte, which is disposed between the positive electrode and the negative electrode and serves to transport ions and isolate the positive and negative electrodes.

[0115] In some embodiments, the energy cell further includes an electrolyte, which acts as a conductive medium between the positive and negative electrodes. The present disclosure does not specifically limit the type of electrolyte, and the electrolyte may be selected based on needs. The electrolyte may be liquid, gel, or solid.

[0116] The electrode assembly may be a wound structure, a laminated structure, or a mixed structure of wound and laminated structures.

[0117] In some embodiments, the electrode assembly is a wound structure, wherein the positive electrode sheet and the negative electrode sheet are wound into the wound structure.

[0118] In some embodiments, the electrode assembly is a laminate structure.

[0119] As an example, multiple positive electrode sheets and multiple negative electrode sheets can be provided respectively, and the multiple positive electrode sheets and the multiple negative electrode sheets can be alternately stacked.

[0120] As an example, a plurality of positive electrode sheets may be provided, and the negative electrode sheet may be folded to form a plurality of stacked folded segments, with a positive electrode sheet being sandwiched between adjacent folded segments.

[0121] As an example, both the positive electrode sheet and the negative electrode sheet are folded to form a plurality of stacked folded segments.

[0122] As an example, a plurality of separators may be provided, each of which is disposed between any adjacent positive electrode sheets or negative electrode sheets.

[0123] As an example, the separator may be provided continuously, and may be provided between any adjacent positive electrode sheets or negative electrode sheets by folding or winding.

[0124] In some embodiments, the shape of the electrode assembly can be cylindrical, flat, or polygonal.

[0125] In some embodiments, the electrode assembly is provided with tabs that can conduct current from the electrode assembly. The tabs include a positive tab and a negative tab.

[0126] In some embodiments, the energy unit may include an outer shell. The outer shell may be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell) or an aluminum-plastic film. In some embodiments, the outer shell may be a sealed structure or a non-sealed structure. As an example, when the outer shell is a non-sealed structure, the outer shell serves to protect the electrode assembly, and a sealed bag is further included between the outer shell and the electrode assembly, and the sealed bag is used to encapsulate the electrode assembly and the electrolyte. Specifically, the sealed bag may be a bag-shaped insulating member or an aluminum-plastic film. When the outer shell is a sealed structure, it is used to encapsulate components such as the electrode assembly and the electrolyte.

[0127] As an example, the energy unit can be a cylindrical energy unit, a prismatic energy unit, a soft-pack energy unit or an energy unit of other shapes. The prismatic energy unit includes a square shell energy unit, a blade-shaped energy unit, a polygonal prismatic battery, and a polygonal prismatic battery such as a hexagonal prismatic battery, etc. There is no special limitation in the present disclosure.

[0128] In some embodiments, the housing includes an end cap and a shell, wherein the shell has an opening and the end cap covers the opening. The shell may have one or more openings. One or more end caps may also be provided.

[0129] In some embodiments, the housing is provided with at least one electrode terminal, which is electrically connected to the tab. The electrode terminal may be directly connected to the tab or indirectly connected to the tab via a current collecting member. The electrode terminal may be provided on an end cap or on the housing.

[0130] In some embodiments, the energy storage device includes an energy storage bin, etc.

[0131] Power stations are increasingly demanding higher areal energy density for energy storage devices. To increase power output, the total weight of the storage tank and its components also increases accordingly. However, energy storage tanks must be transported from their production site to their intended destination by land and / or sea, and these typically have weight restrictions. This creates a conflict between the increased energy density and the weight of the storage tanks.

[0132] In view of this, the embodiments of the present disclosure propose a new technical solution. The technical solution described in the embodiments of the present disclosure is applicable to energy storage devices, energy storage systems including energy storage devices, and charging networks.

[0133] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it at the appropriate time. For example, an energy storage device can store electrical energy during periods of low electricity consumption and provide it to relevant users or electrical equipment during periods of peak electricity consumption. The energy storage system provided in the embodiments of the present disclosure can be any power system that requires an energy storage device.

[0134] Please refer to Figure 1, which is a schematic diagram of the structure of a charging network provided in one embodiment of the present disclosure. This embodiment of the present disclosure provides a charging network 1000, which includes charging piles 200, which are used to charge electrical devices. Charging network 1000 may also include an energy storage compartment 100, an energy storage device or energy storage system 2000, and the energy storage device is electrically connected to the charging piles 200, and is used to provide electrical energy to the charging piles 200.

[0135] It should be noted that the charging pile 200 is electrically connected to the energy unit 2 in the energy storage device via a cable, and the energy unit 2 can provide its stored electrical energy to the charging pile 200. The charging pile 200 has one or more connectors for connecting to electrical devices (such as vehicles) to replenish energy to the electrical devices. The application of energy storage devices in the charging network 1000 can effectively improve the reliability of the charging network 1000 and also help increase the flexibility of the charging network 1000 during deployment.

[0136] The energy storage device may be located inside the charging pile 200 (eg, an integrated storage and charging device), or may be located outside the charging pile 200 .

[0137] In a charging network 1000 , there may be one charging pile 200 , and the energy storage device provides power to the one charging pile 200 ; there may also be multiple charging piles 200 , and the energy storage device provides power to multiple charging piles 200 .

[0138] The energy storage device may include at least one energy storage bin 100, which includes a bin body 10, a control module 30 and multiple energy units 2. The multiple energy units 2 are accommodated in the bin body 10, and the energy units 2 are electrically connected to the charging pile 200 so that the energy units 2 provide electrical energy to the charging pile 200.

[0139] As an example, as shown in FIG1 , a charging network 1000 includes an energy storage device and two charging piles 200 , and the energy storage device provides electrical energy to the two charging piles 200 .

[0140] Please refer to Figure 2, which is a schematic diagram of the structure of an energy storage system 2000 provided in one embodiment of the present disclosure. This embodiment of the present disclosure provides an energy storage system 2000. Energy storage system 2000 includes a power conversion device 300. Power conversion device 300 can be electrically connected to a power generation device 3000 and an energy storage device to convert the electrical power provided by power generation device 3000. Power conversion device 300 converts the electrical energy provided by power generation device 3000 into energy storage device.

[0141] The power conversion device 300 is connected between the power generation device 3000 and the energy storage device. The power generation device 3000 is used to generate electricity, and the power generation device 3000 is used to store the generated electricity in the energy storage device through the power conversion device 300. The use of the energy storage device in the energy storage system 2000 can effectively improve the operational reliability of the energy storage system 2000. In a specific implementation, the power generation equipment may specifically include solar panels, hydropower generation equipment, thermal power generation equipment, etc. The specific type of power generation equipment is not limited by this disclosure.

[0142] As an example, as shown in FIG2 , the energy storage system 2000 includes an energy storage device and a power conversion device 300 . The two power generation devices 3000 transmit the generated electric energy to the power conversion device 300 , respectively, and the electric energy is introduced into the energy storage device for storage through the power conversion device 300 .

[0143] 3 to 14 , some embodiments of the present disclosure provide an energy storage bin 100 , which includes a bin body 10 .

[0144] The silo 10 may be a cabinet or a container, and has a cavity inside the silo 10, which can accommodate other components of the energy storage silo 100. The silo 10 may be a hexahedral structure.

[0145] The warehouse body 10 is generally a rectangular parallelepiped structure, with both its length and width parallel to the horizontal plane. The length of the warehouse body 10 is parallel to the longest side of the rectangular parallelepiped structure. The height of the warehouse body 10 is perpendicular to the ground. For example, as shown in Figures 3 and 5 , the length of the warehouse body 10 is represented by X, the width of the warehouse body 10 is represented by Y, and the height of the warehouse body 10 is represented by Z.

[0146] Please refer to Figures 3 to 14. Some embodiments of the present disclosure further provide an energy storage device, which includes multiple energy storage bins 100 of the embodiments of the present disclosure. The multiple energy storage bins 100 are arranged along the height direction, length direction and / or width direction of the energy storage bin 100, and each energy storage bin 100 includes a master control module 303.

[0147] Multiple energy storage bins 100 are arranged along the height direction, length direction and / or width direction of the energy storage bin 100, which can be understood as multiple energy storage bins 100 are stacked or connected along the height direction, length direction and / or width direction of the energy storage bin 100.

[0148] Referring to Figures 3 to 14 , the energy storage device may include any number of energy storage bins 100, one, two, or more than two. For example, the energy storage device may include two energy storage bins 100 stacked in a vertical direction. Another example may include three energy storage bins 100 stacked in a vertical direction. For example, the sum of the heights of all stacked energy storage bins 100 is less than or equal to the sum of the heights of eight standard containers stacked together.

[0149] The energy storage warehouse 100 also includes a plurality of energy units 2, which are used to provide or store electrical energy.

[0150] Here, the energy unit 2 may be a battery cell, or may be a battery device 80 formed by electrically connecting a plurality of battery cells.

[0151] 4 and 16 , a plurality of energy units 2 may be formed into multiple layers and / or multiple columns of battery devices 80 , and each row or column of battery devices 80 includes a plurality of battery devices 80 .

[0152] The battery apparatus 80 mentioned in the embodiments of the present disclosure may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, parallel, or hybrid via a busbar.

[0153] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells.

[0154] As an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing multiple battery cells to form an independent module. As an example, the battery module may be formed by bundling multiple battery cells with a cable tie.

[0155] In some embodiments, the battery device 80 may be a battery pack, which includes a case 81 and one or more battery cell assemblies, wherein the battery cell assemblies are housed in the case 81 .

[0156] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box body 81 by fixing the battery module in the box body 81 .

[0157] As an example, the battery cell assembly may also be housed in the box body 81 by directly fixing a plurality of battery cells to the box body 81 .

[0158] As an example, referring to Figure 16 , the housing 81 may include a first housing 811 and a second housing 812 . The first housing 811 and the second housing 812 engage to form an enclosed space within the housing 81 for housing the battery cell assembly. Enclosed here means covered or closed, and can be either sealed or unsealed. The first housing 811 may be a top cover or a bottom plate.

[0159] As an example, the box body 81 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that a closed space is formed inside the box body 81 to accommodate the battery cell assembly.

[0160] Exemplarily, a plurality of energy units 2 are accommodated in at least one warehouse body 10 .

[0161] That is to say, part of the warehouse body 10 may contain the energy unit 2, while another part of the warehouse body 10 may not contain the energy unit 2; or all of the warehouse body 10 may contain the energy unit 2.

[0162] In the embodiment where the energy unit 2 is accommodated in part of the warehouse bodies 10 , the energy unit 2 may be accommodated in only one of the warehouse bodies 10 , or may be accommodated in multiple warehouse bodies 10 .

[0163] The compartment 10 contains a plurality of energy units 2, which may be battery modules or battery packs.

[0164] In some embodiments, referring to FIG. 4 , the energy storage bin 100 includes a control module 30 , which is used to electrically control the multiple energy units 2 of the energy storage device.

[0165] In this embodiment, by providing a control module 30 , the control module 30 includes a master control module 303 . The control module 30 can control the input or output of electrical energy of the energy unit 2 , thereby achieving electrical control of the energy unit 2 .

[0166] In some embodiments, referring to FIG. 4 , the weight of the energy storage bin 100 is M, and M is less than or equal to 45 tons.

[0167] Here, the energy storage bin 100 refers to a cabinet that can be used, transported, and hoisted independently.

[0168] In some embodiments, referring to FIG. 4 , the weight of the energy storage bin 100 is M, and M is less than or equal to 36 tons.

[0169] Exemplarily, the weight of the energy storage bin 100 may be any one of 10 tons, 15 tons, 20 tons, 25 tons, 30 tons, 35 tons, 40 tons, 45 tons, or any value between any two of them.

[0170] During the process of hoisting the energy storage bin 100 , it is convenient to hoist the relevant hoisting devices and to transport the energy storage bin 100 .

[0171] In order to make a single energy storage bin 100 meet the transportation limit requirements of some countries, the overall weight of the energy storage bin 100 is controlled within 45 tons, and the integration of the energy storage bin 100 is as high as possible to reduce the workload of on-site installation; at the same time, the energy per unit area is increased to reduce the customer's cost investment.

[0172] Exemplarily, the energy storage bin 100 includes a bin body 10, a control module 30 and multiple energy units 2. The control module 30 and the multiple energy units 2 are housed in the bin body 10. The control module 30 includes a master control module 303, so that a single energy storage bin 100 can form a complete system, that is, a single energy storage bin 100 can provide or store electrical energy.

[0173] Exemplarily, the energy storage bin 100 further includes components such as a connecting pipeline thermal management module 20 .

[0174] The energy storage bin 100 provided in the embodiment of the present disclosure, by controlling the weight of the energy storage bin 100 to be less than or equal to 45 tons, is conducive to improving the problem of overweight transportation, reducing the transportation cost of the energy storage bin 100, and thus reducing the use cost of the energy storage bin 100. At the same time, it also means that under the premise of meeting the transportation weight, the size of the bin body 10 can be adjusted according to the energy density requirements, so as to improve the flexibility of the capacity of the bin body 10 and match different needs. For example, the size of the bin body 10 can be made as large as possible, and the volume and power of the energy storage bin 100 can be increased as much as possible, thereby reducing the use cost of the energy storage bin 100. In addition, by arranging the control module 30 and multiple energy units 2 in the bin body 10, it is conducive to improving the integration of the energy storage bin 100 and reducing the workload of on-site installation, so that the energy storage bin 100 can be used alone, or multiple energy storage bins 100 can be stacked together for use, thereby improving the versatility and application flexibility of the energy storage bin 100.

[0175] In some embodiments, referring to FIG. 4 , the height dimension of the warehouse body 10 is smaller than the height dimension of a standard container.

[0176] Referring to Figures 3 and 6 , the length dimension a of the silo 10 is the distance between its two ends along the length direction; the width dimension b of the silo 10 is the distance between its two ends along the width direction; and the height dimension h of the silo 10 is the distance between its two ends along the height direction. Dimensions a, b, and h represent the maximum dimensions of the outer contour of the silo 10 in the corresponding directions. The silo 10 can include eight corner fittings and six walls. The eight corner fittings are located at the eight corners of the silo's rectangular structure and protrude from the walls of the silo 10. The total span of the two corner fittings arranged along the height direction is the height of the silo 10, the total span of the two corner fittings arranged along the length direction is the length of the silo 10, and the total span of the two corner fittings arranged along the width direction is the width of the silo 10. When calculating the dimensions of the silo 10, pipes and cables connected to the silo 10 and located outside the silo 10 are not included in the dimensions of the silo 10.

[0177] A standard container may be a standard container size used in transportation, such as 10 feet, 20 feet, 30 feet, 40 feet, or 45 feet, which meets corresponding standards and has corresponding dimensions for length, width, and height. Standard containers may refer to GB / T1413-2023 Series 1 Container Classification, Dimensions, and Rated Weights.

[0178] 10 feet can include: the length dimension is 2991mm, with a tolerance of 0mm-5mm; the width dimension is 2438mm, with a tolerance of 0mm-5mm; and the height dimension is 2438mm or less than 2438mm; the tolerance is 0mm-5mm.

[0179] 20 feet can include: the length dimension is 6058mm, with a tolerance of 0mm-6mm; the width dimension is 2438mm, with a tolerance of 0mm-5mm; and the height dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0180] 30 feet can include: the length dimension is 9125mm, with a tolerance of 0mm-10mm; the width dimension is 2438mm, with a tolerance of 0mm-5mm; and the height dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0181] 40 feet can include: the length dimension is 12192mm, with a tolerance of 0mm-10mm; the width dimension is 2438mm, with a tolerance of 0mm-5mm; and the height dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0182] 45 feet can include: the length dimension is 13716mm, with a tolerance of 0mm-10mm; the width dimension is 2438mm, with a tolerance of 350mm-5mm; and the height dimension is 2591mm or 2896mm; the tolerance is 0mm-5mm.

[0183] In the embodiment of the present disclosure, for warehouse bodies 10 of various sizes, sizes within the range of ±1%, ±2%, ±3%, ±4%, and ±5% thereof can be regarded as sizes within the tolerance range.

[0184] 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.

[0185] In some embodiments, the height dimension of the warehouse body 10 is greater than or equal to one-third of the height dimension of a standard container.

[0186] The size of the warehouse body 10 cannot be infinitely small. When the size of the warehouse body 10 along the height direction is greater than or equal to one-third of the size of a standard container along the height direction, the energy storage warehouse 100 has high manufacturability, high volume energy density, and is more convenient to transport and install. It is also conducive to improving the problem of overweight transportation, reducing the transportation cost of the energy storage warehouse 100, and thus reducing the use cost of the energy storage warehouse 100.

[0187] In some embodiments, the height dimension of the warehouse body 10 is greater than or equal to half the height dimension of a standard container.

[0188] When the height dimension of the silo 10 is greater than or equal to half the height dimension of a standard container, and less than the height dimension of a standard container, the energy storage silo 100 has high manufacturability, high volumetric energy density, and is more convenient to transport and install. This helps to alleviate the problem of overweight during transportation, reduces the transportation cost of the energy storage silo 100, and thus reduces the cost of using the energy storage silo 100. For example, when the energy storage device includes two stacked energy storage silos 100, the height dimension of each silo 10 is greater than or equal to half the height dimension of a standard container, and less than the height dimension of a standard container. When the two silos 10 are stacked, they are taller than the height of a standard container, but each energy storage silo 100 containing components such as the energy unit 2 weighs less. With this arrangement, each energy storage silo 100 of the energy storage device can be transported separately, and when stacked at the site of use, the energy storage device has a higher capacity.

[0189] In some embodiments, the dimension of the warehouse body 10 along the height direction is greater than or equal to one-third of the dimension of a standard container along the height direction, and less than one-half of the dimension of a standard container along the height direction.

[0190] When the size of the silo body 10 along the height direction is greater than or equal to one-third of the size of a standard container along the height direction, and less than one-half of the size of a standard container along the height direction, the energy storage silo 100 has high manufacturability, high volume energy density, and is more convenient to transport and install. For example, when the energy storage device includes three stacked energy storage silos 100, the size of each energy storage silo 100 along the height direction is greater than or equal to one-third of the size of a standard container along the height direction, and less than one-half of the size of a standard container along the height direction. After the three energy storage silos 100 are stacked, they are taller than the height of a standard container, but the weight of each energy storage silo 100 is lower. With this arrangement, each energy storage silo 100 can be transported separately, and after being stacked at the place of use, the energy storage device has a higher power consumption.

[0191] In some embodiments, referring to Figures 3 to 14, the length of the warehouse body 10 is consistent with the length of a standard container, and the width of the warehouse body 10 is consistent with the width of a standard container.

[0192] In this embodiment, by setting the size of the warehouse body 10 along its length direction to be consistent with the size of the length direction of a standard container, and setting the size of the warehouse body 10 along its width direction to be consistent with the size of the width direction of a standard container, it is convenient to match the transportation tools and slings of existing standard containers, reducing the transportation cost of the energy storage device, and thus reducing the use cost of the energy storage warehouse 100.

[0193] By setting the height of the silo 10 to be smaller than that of a standard container, the silo 10 does not exceed the height of a standard container for sea or land transport during transportation, thereby improving the convenience of transporting the silo 10 and reducing transportation costs. The length and width of the silo 10 are both consistent with those of a standard container, ensuring that the horizontal area occupied by the silo 10 during transportation is consistent with that of a standard container. This facilitates compatibility with existing standard container transport vehicles and spreaders, reduces the transportation cost of the energy storage device, and thus reduces the cost of using the energy storage device.

[0194] In some embodiments, referring to FIG. 3 , the height dimension of the silo 10 is h, 850 mm ≤ h < 2896 mm.

[0195] Exemplarily, the height dimension of the warehouse body 10 can be any one of 850mm, 900mm, 950mm, 1000mm, 1050mm, 1100mm, 1150mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm, 1800mm, 2000mm, 2100mm, 2200mm, 2300mm, 2400mm, 2500mm, 2600mm, 2700mm, 2800mm, 2895mm or any value between two of them.

[0196] In this embodiment, by setting the height of the warehouse body 10 to 850mm≤h<2896mm, the total weight of the energy storage warehouse 100 is controlled within 45 tons, and the size of the warehouse body 10 can be adjusted according to the energy density requirements, further reducing the use cost of the energy storage warehouse 100.

[0197] In some embodiments, the height dimension of the silo body 10 is h, 1300 mm ≤ h ≤ 2400 mm.

[0198] Exemplarily, the height dimension of the warehouse body 10 can be any one of 1300mm, 1350mm, 1400mm, 1450mm, 1500mm, 1550mm, 1600mm, 1650mm, 1700mm, 1750mm, 1800mm, 1850mm, 1900mm, 1950mm, 2000mm, 2050mm, 2100mm, 2150mm, 2200mm, 2250mm, 2300mm, 2350mm, and 2400mm, or any value between two of them.

[0199] In this embodiment, by setting the height of the warehouse body 10 to 1300mm≤h≤2400mm, the total weight of the energy storage warehouse 100 can be controlled within 45 tons, and the size of the warehouse body 10 can be adjusted according to the energy density requirements, further reducing the use cost of the energy storage warehouse 100.

[0200] In some embodiments, referring to FIG. 4 , the energy storage device includes a thermal management module 20 , which is housed in the bin body 10 . The thermal management module 20 is used to manage the temperatures of the multiple energy units 2 of the energy storage bin 100 .

[0201] In this embodiment, the thermal management module 20 is provided to manage the temperature of the energy unit 2, reducing the risk of temperature runaway of the energy unit 2. Furthermore, by placing the thermal management module 20 within the silo body 10, the integration of the energy storage silo 100 is improved, the workload of on-site installation is reduced, and the energy storage silo 100 can be used individually or by stacking multiple silos 100 together, thereby increasing the versatility and application flexibility of the energy storage silo 100.

[0202] Of course, in other embodiments, the energy storage bin 100 may not include the thermal management module 20 .

[0203] In some embodiments, referring to FIG. 15 , the control module 30 further includes at least one of a main control module 301 , a power distribution module 302 , and a fire control module 304 30 .

[0204] The energy unit 2 is electrically connected to the main control module 301. The main control module 301 is electrically connected to the master control module 303. The main control module 301, the master control module 303, and the fire control module 30430 are all electrically connected to the power distribution module 302.

[0205] The main control module 301 is used to control the input and output of high voltage electric energy of the energy unit 2 in the warehouse 12 body 10. The master control module 303 is used to control the switching action of the main control module 301 in the warehouse 12 body 10.

[0206] The fire control module 30430 is used to control the operation of fire protection components when a fire occurs due to temperature imbalance in the warehouse body 10. The fire protection components can be fire extinguishers, etc., and the fire protection components can be set in the warehouse body 10.

[0207] The power distribution module 302 is used to electrically connect the main control module 301, the general control module 303 and the fire control module 30430, so as to facilitate the circuit conduction of the main control module 301, the general control module 303 and the fire control module 30430 and maintain the normal operation of the main control module 301, the general control module 303 and the fire control module 30430.

[0208] Here, in an embodiment where the energy storage device includes multiple energy storage bins 100 , the control modules 30 of each energy storage bin 100 may be the same or different.

[0209] The thermal management module 20 includes a heat exchange unit, which is, for example, a liquid cooling unit. Please refer to Figure 4. The thermal management module 20 can exchange heat with the energy unit 2 through a heat exchange pipeline (for example, a liquid cooling pipeline 90), thereby achieving temperature management of the energy unit 2 and reducing the risk of temperature out of control of the energy unit 2.

[0210] 3 to 14 , the interior of the chamber 10 includes an energy chamber 11 and a control chamber 12. The energy chamber 11 is used to accommodate at least one energy unit 2, and at least part of the control module 30 and / or at least part of the thermal management module 20 is accommodated in the control chamber 12.

[0211] Here, at least part of the control module 30 and / or at least part of the thermal management module 20 is accommodated in the control compartment 12, which means that at least part of the control module 30 can be accommodated in the control compartment 12, at least part of the thermal management module 20 can be accommodated in the control compartment 12, or at least part of the control module 30 and at least part of the thermal management module 20 can be accommodated in the control compartment 12.

[0212] Exemplarily, part of the control module 30 may be accommodated in the energy warehouse 11 , for example, the main control module 301 may be accommodated in the energy warehouse 11 .

[0213] Of course, in some embodiments, part of the thermal management module 20 may also be accommodated in the energy compartment 11 .

[0214] In this embodiment, by arranging an energy chamber 11 and a control chamber 12 inside the warehouse body 10, and arranging at least part of the control module 30 and / or at least part of the thermal management module 20 inside the warehouse body 10, the space inside the warehouse body 10 can be fully utilized, thereby further improving the space utilization rate of the warehouse body 10.

[0215] In some embodiments, referring to FIG. 3 to FIG. 14 , at least a portion of the chamber body 10 includes a partition 101 , which is disposed between the energy chamber 11 and the control chamber 12 , and the energy chamber 11 and the control chamber 12 share the partition 101 .

[0216] Here, the separator 101 may include a metal plate.

[0217] Here, the partition 101 is beneficial to improving the structural strength of the warehouse body 10 and is also beneficial to improving the sealing performance and thermal insulation performance of the energy warehouse 11.

[0218] The partition 101 is provided with a heat exchange pipeline and a connecting harness 50, and the connecting harness 50 includes a high-voltage harness 51 and / or a low-voltage harness 52. The thermal management module 20 in the control compartment 12 can exchange heat with the energy unit 2 in the energy compartment 11 through the heat exchange pipeline (for example, the liquid cooling pipeline 90), and the control module 30 in the control compartment 12 can electrically control the energy unit 2 in the energy compartment 11 through the connecting harness 50.

[0219] As an example, when the heat exchange pipeline and the connecting harness 50 pass through the partition 101, the passing position may be sealed.

[0220] Exemplarily, the interior of the partition 101 is filled with a heat insulating medium.

[0221] Here, the heat insulating medium may be some heat insulating material, such as heat insulating cotton.

[0222] The heat-insulating medium is beneficial to improving the structural strength of the partition 101 and can also play a flame retardant and heat-insulating effect, which is beneficial to reducing the heat loss of the energy bin 11 and the impact of external heat on the energy unit 2 in the energy bin 11.

[0223] Here, in some embodiments, the warehouse body 10 includes multiple control warehouses 12, and the control warehouses 12 may accommodate the control module 30 and the thermal management module 20, or all the control warehouses 12 may accommodate the control module 30, or all the control warehouses 12 may accommodate the thermal management module 20.

[0224] In some embodiments, referring to FIG. 6 and FIG. 8 , there are multiple control compartments 12 , and the partition 101 may be further disposed between adjacent control compartments 12 , so that the adjacent control compartments 12 share the partition 101 .

[0225] Exemplarily, the separator 101 separates the thermal management module 20 and the control module 30 , reducing the risk of interference between the thermal management module 20 and the control module 30 , thereby improving the reliability of the energy storage device.

[0226] The thermal management module 20 and the control module 30 are separated by a partition 101. The partition 101 can separate the thermal management module 20 and the control module 30, which can reduce the interference of the thermal management module 20 on the control module 30, that is, it can reduce the electromagnetic interference of the high-voltage line to the low-voltage line, and can also reduce the impact of external rainfall or sunlight exposure on the control module 30.

[0227] There are many ways to arrange the energy compartment 11 and the control compartment 12.

[0228] In some embodiments, referring to FIG. 6 , at least a portion of the control compartment 12 and the energy compartment 11 are arranged along the height direction of the compartment body 10 .

[0229] Here, part of the control compartment 12 and the energy compartment 11 may be arranged along the height direction of the compartment body 10 , or all of the control compartment 12 and the energy compartment 11 may be arranged along the height direction of the compartment body 10 .

[0230] As an example, the control chamber 12 is arranged above the energy chamber 11 , so that the components in the control chamber 12 can block the heat radiation from the top and reduce the impact of the heat radiation on the interior of the energy chamber 11 .

[0231] Exemplarily, referring to FIG. 7 , at least a portion of the control compartment 12 and the energy compartment 11 are arranged along the length direction of the compartment body 10 .

[0232] Here, some of the control compartments 12 and the energy compartments 11 may be arranged along the length direction of the compartment body 10 , or all of the control compartments 12 and the energy compartments 11 may be arranged along the length direction of the compartment body 10 .

[0233] Here, by arranging the control chamber 12 at the end of the chamber body 10, the space utilization inside the chamber body 10 is maximized. In addition, the control chamber 12 and the energy chamber 11 can be arranged closer, which is conducive to improving the compactness of the structure.

[0234] In addition, part of the warehouse body 10 can be set as a mirror structure, which is conducive to the on-site grid arrangement, and the control warehouse 12 of the warehouse body 10 can be located at the end close to the outside of the warehouse body 10, which is conducive to reducing the land waste of traditional warehouse bodies that must reserve a maintenance channel of more than 3m between adjacent warehouse bodies, and improving the on-site area energy density.

[0235] In some embodiments, referring to FIG. 3 and FIG. 4 , the thermal management module 20 is located on the top of the chamber body 10 .

[0236] In this embodiment, the thermal management module 20 is located at the top of the silo 10. There is no obstruction above the thermal management module 20, which facilitates heat dissipation from the thermal management module 20, thereby increasing the service life of the energy storage device. This also helps lower the overall center of gravity of the energy storage silo 100, which is beneficial for transportation safety. Furthermore, the design of a separate silo from the energy silo 11 improves the thermal insulation of the energy silo 11. At the same time, the thermal management module 20 blocks thermal radiation from the top, reducing the impact of thermal radiation on the interior of the energy silo 11.

[0237] In other embodiments, referring to FIG. 6 , the thermal management module 20 and the energy chamber 11 are arranged along the length direction of the chamber body 10 .

[0238] Here, by arranging the thermal management module 20 at the end of the warehouse body 10 , the space utilization inside the warehouse body 10 is maximized.

[0239] In some embodiments, referring to FIG. 11 to FIG. 13 , the control module 30 and the energy bin 11 are arranged along the height direction of the bin body 10 .

[0240] That is to say, the control module 30 can be located above the energy bin 11 , below the energy bin 11 , or in the middle of the two energy bins 11 along the height direction.

[0241] For example, the control module 30 is set at the top of the warehouse body 10, that is, above the energy warehouse 11 of the warehouse body 10. The height of the operating part meets the requirements of ergonomics. The maintenance personnel can stand on one side of the warehouse body 10 and reach out to touch the operating handle of the control part, which is convenient for maintenance and inspection.

[0242] In some embodiments, referring to FIG. 9 and FIG. 10 , the control module 30 and the energy bin 11 are arranged along the length direction of the bin body 10 .

[0243] That is to say, the control module 30 can be located at the left end of the energy bin 11 , or at the right end of the energy bin 11 , or in the middle of the two energy bins 11 along the length direction.

[0244] In some embodiments, referring to FIG. 6 , the control module 30 and the thermal management module 20 are arranged along the height direction of the chamber body 10 .

[0245] For example, the control module 30 and the thermal management module 20 may be stacked along the height direction of the warehouse body 10 , with the thermal management module 20 located above the control module 30 .

[0246] Exemplarily, a vent 13 is provided on the top wall above the thermal management module 20 for ventilation of the thermal management module 20 .

[0247] Exemplarily, a vent 13 is provided on the side wall of the thermal management module 20 for ventilation of the thermal management module 20 .

[0248] The thermal management module 20 is located on top of the control module 30. There is no obstruction above the thermal management module 20, which facilitates heat dissipation from the thermal management module 20. The thermal management module 20 is separated from the control module 30 by a partition 101. The partition 101 separates the thermal management module 20 from the control module 30, reducing interference from the thermal management module 20 on the control module 30. Specifically, it reduces electromagnetic interference from high-voltage lines to low-voltage lines, and also reduces the impact of external rainfall or sunlight on the control module 30.

[0249] In some embodiments, referring to FIG. 8 , the control module 30 and the thermal management module 20 are arranged along the width direction of the chamber body 10 , and the thermal management module 20 is disposed in front of the control module 30 .

[0250] The thermal management module 20 is disposed in front of the control module 30 . There are no obstructions above or on the sides of the thermal management module 20 , which is beneficial to heat dissipation of the thermal management module 20 .

[0251] In this embodiment, the thermal management module 20 is arranged on the front side of the control module 30, that is, the thermal management module 20 is arranged on the side of the warehouse body 10 close to the battery compartment door, and the water inlet and outlet of the heat exchange pipeline are also arranged on the side of the warehouse body 10 close to the battery compartment door. This is beneficial to the connection between the thermal management module 20 and the heat exchange pipeline, and can also reduce the number of elbows in the heat exchange pipeline, thereby reducing the flow resistance and improving the temperature control effect of the thermal management module 20.

[0252] Of course, in other embodiments, the control module 30 and the thermal management module 20 may also be arranged along the length direction of the warehouse body 10 .

[0253] In some embodiments, referring to FIG. 6 , the thermal management module 20 is disposed on the top of the energy compartment 11 , and the control module 30 is disposed on the bottom of the energy compartment 11 .

[0254] The thermal management module 20 is located at the top of the energy bin 11. There is no obstruction above the thermal management module 20, which is conducive to the heat dissipation of the thermal management module 20, thereby increasing the service life of the energy storage device. At the same time, it is conducive to lowering the overall center of gravity height of the energy storage bin 100, which is beneficial to transportation safety. In addition, the design of the compartment separated from the energy bin 11 is conducive to improving the thermal insulation effect of the energy bin 11. At the same time, the thermal management module 20 blocks the heat radiation from the top, reducing the impact of heat radiation on the interior of the energy bin 11. At the same time, the control module 30 is set at the bottom of the energy bin 11 for easy maintenance and inspection.

[0255] In some embodiments, referring to FIG. 3 , the energy compartment 11 is provided with a first compartment door 102 on at least one side along the width direction, and the control compartment 12 is provided with a second compartment door 103 on at least one side along the width direction.

[0256] Here, the first compartment door 102 and the second compartment door 103 may be inspection doors. By providing the inspection doors, it is convenient to inspect the energy storage compartment 100 through the inspection doors.

[0257] Both the energy compartment 11 and the control compartment 12 may be provided with inspection doors.

[0258] The energy bin 11 may be provided with a first bin door 102 on at least one side along the width direction, or may be provided with a first bin door 102 on both sides along the width direction, so that the bin body 10 is provided with a second bin door 103 in an area corresponding to at least part of the energy bin 11.

[0259] The control compartment 12 may be provided with a second compartment door 103 on at least one side along the width direction, or may be provided with a second compartment door 103 on both sides along the width direction, so that the area of ​​the compartment body 10 corresponding to at least part of the control compartment 12 is provided with a second compartment door 103.

[0260] For example, a second compartment door 103 is provided on the right side or front side of the control compartment 12 , and the liquid cooling pipeline 90 , the high-voltage wiring harness 51 , the low-voltage wiring harness 52 , etc. can be inspected by opening the second compartment door 103 .

[0261] In this embodiment, it is beneficial to reduce the land waste of traditional warehouse bodies 10 that must reserve maintenance channels of more than 3m between adjacent warehouse bodies 10. Only normal paint repair channels need to be reserved between the grid warehouse bodies 10, which increases the user's land investment returns and increases the user's energy benefits per unit area.

[0262] In order to facilitate quick installation at the customer's site, the control module 30 and the thermal management module 20 are integrated inside the warehouse body 10. After the warehouse body 10 is stacked on site, it can be connected to the PCS and EMS, which helps to reduce the workload of on-site assembly, improve assembly efficiency, and facilitate customer use.

[0263] The PCS (Power Conversion System) controls the battery's charging and discharging process, converting AC to DC, and can directly power AC loads in the absence of a power grid. The PCS consists of a DC / AC bidirectional converter and a control unit. The PCS controller receives backend control commands via communication and controls the converter to charge or discharge the battery based on the sign and magnitude of the power command, thereby regulating the grid's active and reactive power. The PCS controller communicates with the BMS via the CAN interface to obtain battery pack status information, enabling protective charging and discharging of the battery.

[0264] An EMS (Energy Management System) is a collection of software and hardware used to monitor, control, analyze, and optimize energy systems. It enables efficient energy management and optimized allocation through real-time monitoring and intelligent control of all aspects of energy production, distribution, and consumption.

[0265] In some embodiments, the PCS may also be integrated inside the silo body 10 .

[0266] The control compartment 12 realizes current control and signal detection of the energy compartment 11 through electrical connection with the energy compartment 11. The control module 30 realizes circuit control and signal detection of the thermal management module 20 through electrical connection with the thermal management module 20. At the same time, the energy compartment 11 realizes charging and discharging of the energy storage system 2000 through high-voltage connection with the external PCS, and realizes signal detection and control of the energy storage system 2000 through signal connection with the external EMS; at the same time, an insulating partition wall is set between the control module 30 and the thermal management module 20 and the energy compartment 11 to realize thermal insulation and heat insulation of the energy compartment 11, so that the thermal management module 20 can achieve maximum efficiency in controlling the electrical box and reduce auxiliary source power consumption.

[0267] For example, the energy storage bin 100 places the main control module 301 inside the energy bin 11, and the remaining control modules 30 are placed at the end or middle of the energy storage bin 100. The design of the frequently operated parts is highly ergonomic. Maintenance personnel can stand on the side of the energy storage bin 100 and reach out to touch the operating handle of the control module 30, which is beneficial for maintenance and inspection.

[0268] For example, the energy storage bin 100 can be used as a single energy storage system 2000, or multiple energy storage bins 100 can be stacked together for use. When stacked, the upper and lower energy storage bins 100 are connected by middle twist locks or bolts to ensure the overall structural strength after installation.

[0269] In some embodiments, referring to FIG. 3 , at least a portion of the top wall and / or side walls of the storage body 10 are provided with ventilation holes 13 , and the ventilation holes 13 are used for ventilating the thermal management module 20 .

[0270] Here, at least a portion of the top wall of the storage body 10 is provided with the ventilation holes 13 means that the storage body 10 containing the thermal management module 20 is provided with the ventilation holes 13 .

[0271] The entire top wall of the silo 10 may be open to form a vent 13. Alternatively, a portion of the top wall of the silo 10 may be open to form a vent 13; for example, an opening may be provided on one side of the top wall of the silo 10 along the length direction, so that a portion of the top wall of the silo 10 forms the vent 13.

[0272] As an example, the vents 13 on the top wall of the silo body 10 can be used for exhausting air, and the vents 13 on the side walls of the silo body 10 can be used for taking in air.

[0273] In this embodiment, the vents 13 are located on the top wall of the housing 10 , which is beneficial for heat dissipation of the thermal management module 20 , so that the thermal management module 20 can have more heat dissipation channels, thereby improving the temperature control effect of the thermal management module 20 .

[0274] In some embodiments, referring to FIG. 4 , an energy storage compartment 100 includes multiple battery devices 80 , each of which includes a thermal management component 82 and multiple energy units 2 . The thermal management component 82 is used to regulate the temperature of the energy units 2 . The thermal management module 20 is connected to the multiple thermal management components 82 via a liquid cooling line 90 . The liquid cooling line 90 includes a main line 91 and multiple branch lines 92 . The multiple branch lines 92 are connected in parallel to the main line 91 . The main line 91 is connected to the thermal management module 20 , and the multiple branch lines 92 are respectively connected to the multiple thermal management components 82 . The main line 91 is located above the multiple battery devices 80 , or the main line 91 is located below the multiple battery devices 80 .

[0275] As an example, the heat management component 82 may be plate-shaped or tubular, and a flow channel is provided inside the heat management component 82 for passing a fluid to heat or cool the energy unit 2. The fluid may be a refrigerant or a coolant.

[0276] When the battery device 80 is a battery module, the thermal management component 82 may be a bottom plate, a top plate or a side plate of the battery module, or may be located between adjacent energy units 2 .

[0277] When the battery device 80 is a battery pack, please refer to FIG. 16 . The thermal management component 82 may be a part of the box 81 or located within the accommodation space of the box 81 . The thermal management component 82 may also be located between adjacent energy units 2 .

[0278] In the embodiment where the main pipe 91 is located above the multiple battery devices 80 , it is beneficial for the liquid cooling medium to flow from top to bottom through the main pipe 91 to the multiple branch pipes 92 to cool the battery devices 80 .

[0279] In the embodiment where the main pipe 91 is located below the plurality of battery devices 80 , it is advantageous for the liquid cooling medium to flow from bottom to top through the main pipe 91 to the plurality of branch pipes 92 to cool the battery devices 80 .

[0280] Here, by arranging the main line 91 above the plurality of battery devices 80 or below the plurality of battery devices 80 , the liquid cooling line 90 can be shortened, thereby reducing costs and improving cooling efficiency.

[0281] In some embodiments, the energy unit 2 is a battery cell, and the weight of a single energy unit 2 is 5 kg to 60 kg.

[0282] The weight of a single energy unit 2 can be any one of 5kg, 10kg, 15kg, 20kg, 25kg, 30kg, 35kg, 40kg, 45kg, 50kg, 55kg, 60kg or any value therebetween. As an example, the mass of a single energy unit 2 is 30kg.

[0283] The weight of the energy unit 2 is appropriate so that an appropriate amount of energy units 2 can be placed in the warehouse 10, and the energy density is moderate while meeting the transportation requirements.

[0284] In some embodiments, the weight of the energy storage bin 100 is M, the total weight of the energy units 2 in the bin body 10 is M1, and (M1 / M)×100%≥60%.

[0285] Exemplarily, (M1 / M)×100% can be 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 90%, etc.

[0286] In this way, on the one hand, the weight proportion of the energy unit 2 in the unit volume of the warehouse body 10 can be increased, and the power of the energy storage device per unit volume can be increased; on the other hand, during the transportation of the energy storage warehouse 100, more energy units 2 that contribute to the energy storage and are difficult to produce and cannot be completed at the destination are transported, while other structures can be completed at a place closer to the destination without having to be transported or with reduced transportation. After the warehouse body 10 is assembled into the energy storage warehouse 100, it is beneficial to reduce the transportation cost of the assembled energy storage warehouse 100.

[0287] In some embodiments, (M1 / M)×100%≧80%.

[0288] Illustratively, (M1 / M)×100% may be 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89% or 90%, etc.

[0289] This is further beneficial to reducing the transportation cost of the assembled energy storage bin 100.

[0290] In some embodiments, the weight of the energy storage warehouse 100 is M, and multiple battery devices 80 are arranged in the warehouse body 10. The battery device 80 includes a box body 81 and multiple energy units 2. The multiple energy units 2 are accommodated in the box body 81. The total weight of the battery device 80 is M2, 70%≤(M2 / M)×100%≤90%.

[0291] (M2 / M)×100% can be any one of 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90% or any point value between any two of them.

[0292] When (M2 / M)×100%≥70%, the weight ratio of the energy unit 2 per unit volume of the storage body 10 can be increased, thereby improving the energy density of the storage body 10. When (M2 / M)×100%≤90%, the structural strength of the storage body 10 can be maintained. Therefore, when 70%≤(M2 / M)×100%≤90%, both the energy density of the energy storage body 10 and the structural strength of the storage body 10 can be balanced, making the storage body 10 more practical.

[0293] In some embodiments, referring to FIG. 4 , multiple battery devices 80 may be arranged in rows and columns, with the multiple battery devices 80 in each row arranged lengthwise and the multiple battery devices 80 in each column arranged heightwise. Each battery device 80 includes a thermal management component 82 and multiple energy cells 2. The housing 10 further includes a first connector 3 and multiple second connectors 4. The first connector 3 communicates with the thermal management module 20 and each of the second connectors 4. Each of the second connectors 4 communicates with the thermal management components 82 of the multiple battery devices 80 in a column.

[0294] Illustratively, the plurality of battery devices 80 are arranged in 2 layers and 2 columns, 3 layers and 3 columns, 4 layers and 4 columns, 4 layers and 3 columns, etc.

[0295] It should be noted that the plurality of battery devices 80 may also be arranged in multiple rows, such as 2 rows, 3 rows, 4 rows, 5 rows or 6 rows; or in multiple columns, such as 2 columns, 3 columns, 4 columns, 5 columns or 6 columns.

[0296] In some embodiments, the volume of the warehouse body 10 is V, the total volume of the energy units 2 in the warehouse body 10 is V1, and (V1 / V)×100%≥30%.

[0297] The energy unit 2 includes a shell, and the volume of the energy unit 2 is the volume of the shell. For example, the energy unit 2 is a square shell energy unit 2, and the product of the length, width and height of the square shell energy unit 2 is the product of the length, width and height of the shell.

[0298] In an embodiment where the energy unit 2 further includes an electrode terminal, the electrode terminal is disposed in the outer shell and partially protrudes from the outer shell. The electrode terminal is electrically connected to the electrode assembly, and the portion of the electrode terminal protruding from the outer shell is not counted as part of the volume of the energy unit 2 .

[0299] (V1 / V)×100% 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.

[0300] On the one hand, the volume ratio of the energy unit 2 in the unit volume of the warehouse body 10 can be increased, and the power of the energy storage device per unit volume can be increased; on the other hand, during the transportation of the energy storage warehouse 100, more energy units 2 that contribute to the energy storage and are difficult to produce and cannot be completed at the destination are transported, while other functional components of the energy storage warehouse 100, such as control components, can be produced at a place closer to the destination without having to be transported or with reduced transportation. After the warehouse body 10 is assembled into the energy storage warehouse 100, it is beneficial to reduce the transportation cost of the assembled energy storage warehouse 100.

[0301] In some embodiments, (V1 / V)×100%≧50%.

[0302] (V1 / V)×100% 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.

[0303] This is further beneficial to reducing the transportation cost of the assembled energy storage device.

[0304] In some embodiments, the volume of the warehouse body 10 is V, and multiple battery devices 80 are arranged in the warehouse body 10. The battery device 80 includes a box body 81 and multiple energy units 2. The multiple energy units 2 are accommodated in the box body 81. The total volume of the battery device 80 is V2, 50%≤(V2 / V)×100%≤80%.

[0305] The volume of the energy unit 2 is the volume of the box 81. For example, if the box 81 is a rectangular parallelepiped structure, the volume of the energy unit 2 is equal to the product of the length, width and height of the box 81.

[0306] (V2 / V)×100% can be any one of the point values ​​of 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 75%, 80% or any point value between any two of them.

[0307] When (V2 / V)×100%≥50%, the volume ratio of the energy unit 2 per unit volume of the silo 10 can be increased, thereby improving the energy density of the energy storage device. When (V2 / V)×100%≤80%, the silo 10 can have sufficient structural components to maintain the structural strength of the silo 10. Therefore, when 50%≤(V2 / V)×100%≤80%, both the energy density of the energy storage device and the structural strength of the silo 10 can be balanced, making the silo 10 more practical.

[0308] In some embodiments, refer to FIG6 , the energy of the energy storage bin 100 is E, the dimension of the bin body 10 along the length direction of the bin body 10 is a, the dimension of the bin body 10 along the width direction of the bin body 10 is b, 250KW / m 2 ≤E / (a×b)≤700KW / m 2 .

[0309] E / (a×b) can be 250KW / m 2 、300KW / m 2 、350KW / m2 , 400KW / m 2 450KW / m 2 、460KW / m 2 、470KW / m 2 、480KW / m 2 、485KW / m 2 、490KW / m 2 、495KW / m 2 500KW / m 2 、510KW / m 2 、550KW / m 2 、600KW / m 2 、650KW / m 2 , 700KW / m 2 The point value of any one of them or any point value between them.

[0310] The energy E can be obtained from the nameplate of the energy storage device.

[0311] When E / (a×b)≥250KW / m 2 When E / (a×b)≤700KW / m 2 When the power is 250KW / m 2 ≤E / (a×b)≤700KW / m 2 At the same time, the energy density of the energy storage bin 100 and the mass setting of the bin body 10 are taken into consideration, thereby improving the practicality of the energy storage bin 100 and facilitating the transportation of the energy storage bin 100.

[0312] In some embodiments, 450KW / m 2 ≤E / (a×b)≤600KW / m 2 .

[0313] E / (a×b) can be 450KW / m 2 、455KW / m 2 、460KW / m 2 、465KW / m 2 、470KW / m 2 、475KW / m 2 、480KW / m 2 、485KW / m 2 、490KW / m 2 、495KW / m 2 500KW / m 2 、505KW / m2 、510KW / m 2 、515KW / m 2 、520KW / m 2 、530KW / m 2 、540KW / m 2 、550KW / m 2 、600KW / m 2 The point value of any one of them or any point value between them.

[0314] As an example, E / (a×b)=490KW / m 2 The energy density of the energy storage bin 100 and the mass setting of the bin body 10 can be further improved, making transportation of the energy storage bin 100 easier.

[0315] In some embodiments, along the height direction of the bin body 10, two adjacent bin bodies 10 are connected by welding, snapping, locking or by fixing parts.

[0316] The fixing member may be at least one of a bolt and nut, a pin, a screw or a rivet, etc. Of course, the fixing member may also include a fixing plate, etc., to fix and connect two adjacent bin bodies 10 in the height direction.

[0317] Exemplarily, two adjacent bin bodies 10 are connected by an intermediate twist lock.

[0318] Two adjacent bin bodies 10 in the height direction are connected by fixing parts, and the fixing parts can be used to limit the two adjacent bin bodies 10 in the height direction, which is beneficial to reduce the risk of mutual movement between the two adjacent bin bodies 10 after stacking, and further beneficial to improve the structural stability of the energy storage device.

[0319] The embodiment of the present disclosure provides an energy storage bin 100, which includes a bin body 10, a control module 30, a thermal management module 20 and a plurality of energy units 2, wherein the control module 30, the thermal management module 20 and the plurality of energy units 2 are all arranged inside the bin body 10. The bin body 10 includes an energy bin 11 and a control bin 12, wherein the energy bin 11 accommodates a plurality of energy units 2. The thermal management module 20 is arranged in the control bin 12 of the bin body 10, which is located above the energy bin 11, and the control module 30 is arranged in the control bin 12 at one end of the bin body 10 along the length direction. In addition, all components of the energy storage bin 100 are integrated inside the bin body 10, and the energy storage bin 100 can be connected to the PCS and EMS after being transported to the site, which is conducive to reducing the workload of on-site assembly, improving assembly efficiency, and facilitating customer use. The energy storage bin 100 can be used alone, or multiple energy storage bins 100 can be stacked together for use, thereby improving the versatility and application flexibility of the energy storage bin 100.

[0320] The above are merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations of the present disclosure are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure are intended to be within the scope of protection of the present disclosure.

Claims

1. An energy storage bin, comprising: A warehouse body, wherein the dimension of the warehouse body in the height direction is smaller than the dimension of a standard container in the height direction, the dimension of the warehouse body in the length direction is consistent with the dimension of the standard container in the length direction, and the dimension of the warehouse body in the width direction is consistent with the dimension of the standard container in the width direction; A plurality of energy units, wherein the plurality of energy units are accommodated in the warehouse; A control module, the control module is contained in the compartment, the control module comprises a master control module, and the master control module is used to electrically control the plurality of energy units; Wherein, the weight of the energy storage bin is less than or equal to 45 tons.

2. The energy storage bin according to claim 1, wherein: The dimension of the warehouse body along the height direction is greater than or equal to one third of the dimension of the standard container along the height direction.

3. The energy storage bin according to claim 1, wherein: The dimension of the warehouse body along the height direction is greater than or equal to half the dimension of the standard container along the height direction.

4. The energy storage bin according to claim 1 or 2, wherein: The dimension of the warehouse body along the height direction is greater than or equal to one third of the dimension of the standard container along the height direction, and less than one half of the dimension of the standard container along the height direction.

5. The energy storage bin according to any one of claims 1 to 4, wherein: The height dimension of the warehouse body is h, 850mm≤h<2896mm.

6. The energy storage bin according to claim 5, wherein: 1300mm≤h≤2400mm.

7. The energy storage bin according to any one of claims 1 to 6, wherein: The energy storage bin includes a thermal management module, which is accommodated in the bin body and is used to manage the temperatures of the multiple energy units in the energy storage bin.

8. The energy storage bin according to claim 7, wherein: The interior of the warehouse body is provided with an energy warehouse and a control warehouse, wherein the energy warehouse is used to accommodate a plurality of the energy units, and at least part of the control modules and / or at least part of the thermal management modules are accommodated in the control warehouse.

9. The energy storage bin according to claim 8, wherein: At least part of the control chamber and the energy chamber are arranged along the height direction of the chamber body; and / or, At least part of the control compartment and the energy compartment are arranged along the length direction of the compartment body.

10. The energy storage bin according to claim 8 or 9, wherein: The thermal management module is located on the top of the warehouse body; or, the thermal management module and the energy warehouse are arranged along the length direction of the warehouse body.

11. The energy storage bin according to any one of claims 8 to 10, wherein: The control module and the energy bin are arranged along the height direction of the bin body; or, The control module and the energy bin are arranged along the length direction of the bin body.

12. The energy storage bin according to any one of claims 8 to 11, wherein: The control module and the thermal management module are arranged along the height direction of the warehouse body; and / or, The control module and the thermal management module are arranged along the length direction of the warehouse body; and / or, The control module and the thermal management module are arranged along the width direction of the warehouse body, and the thermal management module is arranged at the front side of the control module; and / or, The thermal management module is arranged at the top of the energy bin, and the control module is arranged at the bottom of the energy bin.

13. The energy storage bin according to any one of claims 8 to 12, wherein: The bin body includes a partition; The partition is arranged between the energy compartment and the control compartment, and the energy compartment and the control compartment share the partition; and / or, There are a plurality of control chambers, and the partition is disposed between adjacent control chambers, and the adjacent control chambers share the partition.

14. The energy storage bin according to claim 13, wherein: The interior of the partition is filled with a heat insulating medium.

15. The energy storage device according to any one of claims 8 to 14, wherein: The energy bin is provided with a first bin door on at least one side along the width direction, and the control bin is provided with a second bin door on at least one side along the width direction.

16. The energy storage bin according to claims 7-15, wherein: The top wall and / or side wall of the storage body are provided with ventilation holes, and the ventilation holes are used for ventilation of the thermal management module.

17. The energy storage bin according to any one of claims 7 to 16, wherein: The energy storage bin includes a plurality of battery devices, each of which includes a thermal management component and a plurality of energy units, and the thermal management component is used to adjust the temperature of the energy unit; The thermal management module is connected to the multiple thermal management components through a liquid cooling pipeline, the liquid cooling pipeline includes a main pipeline and multiple branch pipelines, the multiple branch pipelines are connected to the main pipeline in parallel, the main pipeline is connected to the thermal management module, and the multiple branch pipelines are respectively connected to the multiple thermal management components; the main pipeline is located above the multiple battery devices, or the main pipeline is located below the multiple battery devices.

18. The energy storage bin according to any one of claims 1 to 17, wherein: The control module also includes at least one of a main control module, a power distribution module and a fire control module.

19. The energy storage bin according to any one of claims 1 to 18, wherein: The weight of the energy storage bin is M, the total weight of the energy units in the bin body is M1, (M1 / M)×100%≥60%.

20. The energy storage bin according to claim 19, wherein: (M1 / M)×100%≥80%.

21. The energy storage bin according to any one of claims 1 to 20, wherein: The weight of the energy storage bin is M. A plurality of battery devices are arranged in the bin body. The battery devices include a box body and a plurality of energy units. The plurality of energy units are accommodated in the box body. The total weight of the battery devices is M2, 70%≤(M2 / M)×100%≤90%.

22. The energy storage bin according to any one of claims 1 to 21, wherein: The volume of the warehouse body is V, the total volume of the energy units in the warehouse body is V1, (V1 / V)×100%≥30%.

23. The energy storage bin according to claim 22, wherein: (V1 / V)×100%≥50%.

24. The energy storage bin according to any one of claims 1 to 23, wherein: The volume of the warehouse body is V, and a plurality of battery devices are arranged in the warehouse body. The battery devices include a box body and a plurality of energy units. The plurality of energy units are accommodated in the box body. The total volume of the battery devices is V2, 50%≤(V2 / V)×100%≤80%.

25. The energy storage bin according to any one of claims 1 to 24, wherein: The energy of the energy storage bin is E, the size of the bin along the length direction of the bin is a, and the size of the bin along the width direction of the bin is b, 250KW / m 2 ≤E / (a×b)≤700KW / m 2 .

26. The energy storage bin according to claim 25, wherein: 450KW / m 2 ≤E / (a×b)≤600KW / m 2 。 27. The energy storage bin according to any one of claims 1 to 26, 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.

28. The energy storage bin according to any one of claims 1 to 26, wherein: The energy unit is a battery cell, and the weight of a single energy unit is 5kg to 60kg.

29. An energy storage device, comprising a plurality of energy storage bins as described in any one of claims 1-28, wherein the plurality of energy storage bins are arranged along a height direction, a length direction and / or a width direction of the energy storage bin, and each of the energy storage bins comprises the master control module.

30. An energy storage system, comprising a power conversion device and an energy storage bin as described in any one of claims 1 to 28 or an energy storage device as described in claim 29, wherein the power conversion device is used to electrically connect a power generation device and the energy storage bin.

31. A charging network, comprising a charging pile and an energy storage bin as described in any one of claims 1 to 28, an energy storage device as described in claim 29, or an energy storage system as described in claim 30, wherein the energy storage device is used to provide electrical energy for the charging pile.

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