Energy storage device, energy storage system, and charging network

Abstract

Embodiments of the present disclosure provide an energy storage device, an energy storage system, and a charging network. The energy storage device comprises a first compartment body, a first control module, a first thermal management module, and a plurality of energy units. The dimension of the first compartment body in the height direction thereof is less than the dimension of a standard container in the height direction thereof, the dimension of the first compartment body in the length direction thereof is consistent with the dimension of the standard container in the length direction thereof, and the dimension of the first compartment body in the width direction thereof is consistent with the dimension of the standard container in the width direction thereof. At least some of the energy units are accommodated in the first compartment body. The first control module is disposed in the first compartment body, and the first control module is at least used for electrically controlling the plurality of energy units in the first compartment body. The first thermal management module is at least used for managing the temperature of the plurality of energy units in the first compartment body; the first thermal management module comprises a fan and a condenser; the fan and the condenser are disposed outside the first compartment body; and the fan is used for dissipating heat from the condenser.

Description

Energy storage device, energy storage system and charging network

[0001] The present disclosure is based on the patent applications with the application numbers PCT / CN2024 / 112473, the filing date of August 15, 2024, PCT / CN2024 / 112498, the filing date of August 15, 2024, PCT / CN2024 / 111558, the filing date of August 12, 2024, PCT / CN2024 / 112387, the filing date of August 15, 2024, 202421984591.6, the filing date of August 15, 2024, PCT / CN2024 / 112558, the filing date of August 15, 2024, PCT / CN2024 / 106588, the filing date of July 19, 2024, PCT / CN2024 / 104575, the filing date of July 09, 2024, PCT / CN2024 / 086624, the filing date of April 08, 2024, PCT / CN2024 / 104413, the filing date of July 09, 2024, PCT / CN2024 / 127187, the filing date of October 24, 2024, PCT / CN2024 / 141959, the filing date of December 24, 2024, and PCT / CN2024 / 086600, the filing date of April 08, 2024, and claims priority to the above patent applications, the contents of the above patent applications are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of batteries, in particular to an energy storage device, an energy storage system and a charging network. BACKGROUND

[0003] With the rapid development of science and technology, electric energy has become an indispensable energy in people's production and life. In order to improve the smoothness of electric energy supply and realize the normal operation of production and life, an energy storage device needs to be used. As a device for cyclically storing and releasing electric energy, the energy storage device stores electric energy in the energy storage device through charging or discharging of the energy storage device, or supplies the electric energy stored in the energy storage device to an electric device. The energy storage device is widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation and energy storage power station fields.

[0004] In the development of energy storage devices, in addition to improving the performance of energy storage devices, how to reduce the use cost of energy storage devices is also a problem that cannot be ignored. Therefore, how to reduce the use cost of energy storage devices is a continuous improvement technical problem in energy storage technology. SUMMARY

[0005] Therefore, the embodiments of the present disclosure provide a kind of energy storage device, energy storage system and charging network, which can reduce the use cost of energy storage device.

[0006] To achieve the above object, a first aspect of the embodiments of the present disclosure provides an energy storage device, comprising:

[0007] The first warehouse body is smaller than the size of the standard container along the height direction, and the size of the first warehouse body along the length direction is consistent with the length direction of the standard container, and the size of the first warehouse body along the width direction is consistent with the width direction of the standard container.

[0008] A plurality of energy units, at least part of the energy units are contained in the first warehouse body.

[0009] The first control module is arranged in the first warehouse body, and the first control module is at least used for electrically controlling a plurality of energy units in the first warehouse body.

[0010] The first thermal management module is at least used for managing the temperature of a plurality of energy units in the first warehouse body, and the first thermal management module comprises a fan and a condenser, the fan and the condenser are arranged outside the first warehouse body, and the fan is used for dissipating heat of the condenser.

[0011] The energy storage device provided by the embodiments of the present disclosure reduces the workload of field installation by integrating the first control module, the first thermal management module and the plurality of energy units in the first warehouse body, thereby reducing the use cost of the energy storage device, improving the convenience of the energy storage device, in addition, the first warehouse body and the parts arranged in the first warehouse body can form a complete system, that is, the electric energy can be provided or stored separately, further improving the convenience of the energy storage device. In addition, by arranging the fan and the condenser of the first thermal management module outside the first warehouse body, the first thermal management module is beneficial to heat dissipation, so that the first thermal management module can have more heat dissipation channels, improve the temperature control effect of the first thermal management module, and is beneficial to reduce the auxiliary power consumption of the first thermal management module.

[0012] In some embodiments, the fan and the condenser are arranged at the top or side of the first warehouse body.

[0013] It can be used to shield the top heat radiation, thereby reducing the influence of heat radiation on the inside of the first warehouse body.

[0014] It is beneficial to reduce the overall height of the energy storage device.

[0015] In some embodiments, the first thermal management part comprises an evaporator, the first thermal management module comprises a refrigerant circulation loop, the evaporator and the condenser are both located in the refrigerant circulation loop, and the evaporator is arranged outside the first cabinet body.

[0016] In this way, the evaporator can exchange heat with the external environment.

[0017] In some embodiments, the evaporator is arranged at the top or side of the first cabinet body.

[0018] The heat radiation of the top can be blocked, thereby reducing the influence of heat radiation on the inside of the first cabinet body.

[0019] The overall height of the energy storage device is reduced.

[0020] In some embodiments, the energy storage device comprises a thermal management component, the first thermal management module comprises a compressor, a throttling device, and a pumping device, the pumping device, the evaporator, and the thermal management component are sequentially connected to form a cooling circulation loop, and the compressor, the condenser, the throttling device, and the evaporator are sequentially connected to form the refrigerant circulation loop.

[0021] The refrigerant in the refrigerant circulation loop exchanges heat with the cooling liquid in the cooling circulation loop in the evaporator, and the cooling liquid flowing through the thermal management component exchanges heat with the energy unit.

[0022] In some embodiments, the evaporator is arranged in both the cooling liquid circulation loop and the refrigerant circulation loop. The evaporator is internally provided with a cooling liquid flow channel and a refrigerant flow channel. The cooling liquid flow channel participates in forming the cooling liquid circulation loop and is used for flowing the cooling liquid therein. The refrigerant flow channel participates in forming the refrigerant circulation loop and is used for flowing the refrigerant therein. The cooling liquid flow channel and the refrigerant flow channel are not in communication with each other, so that the cooling liquid and the refrigerant are not mixed. In the evaporator, the heat of the cooling liquid can be exchanged with the refrigerant, so that the evaporator can cool the cooling liquid flowing therethrough.

[0023] In some embodiments, the inside of the first cabinet body has a first energy cabinet and a first control cabinet, the first control module is accommodated in the first control cabinet, and at least part of the energy unit is accommodated in the first energy cabinet. The first control cabinet and the first energy cabinet are arranged along the height direction of the first cabinet body.

[0024] Due to the size of the energy unit, the energy unit cannot be fully inserted into the first cabinet body. By arranging the first control cabinet and the first energy cabinet along the length direction of the first cabinet body, that is, by arranging part of the control module at the end of the first cabinet body, the space in the first cabinet body can be fully utilized, and the space utilization rate of the first cabinet body is further improved.

[0025] The first control bin is arranged above the first energy bin, or the first energy bin is arranged above the first control bin.

[0026] In some embodiments, the first control bin and the first energy bin are arranged along a length direction of the first bin body.

[0027] Here, by arranging the first control bin at the end of the first bin body, the space utilization inside the first bin body is maximized, and in addition, the first control bin and the first energy bin can be arranged closer, which is beneficial to improve the compactness of the structure.

[0028] In some embodiments, the first bin body has a unit bin inside, and part of the first thermal management module is accommodated in the unit bin; the first control bin and the unit bin are arranged along a height direction of the first bin body.

[0029] That is, the first control module can be arranged along the length direction of the first bin body with the first energy bin, and located above the unit bin, or located below the unit bin.

[0030] In some embodiments, the first control bin and the unit bin are arranged along a length direction of the first bin body.

[0031] That is, the first control module can be arranged along the length direction of the first bin body with the first energy bin, and the first control module can be at the left end of the unit bin (i.e. the first control module can be between the first energy bin and the unit bin), or at the right end of the unit bin (i.e. the first control module can be on the side of the unit bin away from the first energy bin).

[0032] In some embodiments, the first control bin and the unit bin are arranged along a width direction of the first bin body.

[0033] That is, the first control module can be arranged along the length direction of the first bin body with the first energy bin, and the first control module can be on the front side of the unit bin, or on the back side of the unit bin.

[0034] In some embodiments, the first bin body comprises a partition;

[0035] The partition is arranged between the first energy bin and the first control bin, and the first energy bin and the first control bin share the partition; and / or,

[0036] The partition is arranged between the first energy bin and the unit bin, and the first energy bin and the unit bin share the partition; and / or,

[0037] The partition is arranged between the first control bin and the unit bin, and the first control bin and the unit bin share the partition; and / or,

[0038] Here, the partition is conducive to improving the structural strength of the first bin body, and is also conducive to improving the sealing performance and thermal insulation performance of the first energy bin.

[0039] In some embodiments, the partition is filled with a heat insulation medium.

[0040] The heat insulation medium is conducive to improving the structural strength of the partition, and can also play a role in flame retardation and thermal insulation, thereby being conducive to reducing the heat loss of the first energy bin and the influence of external heat on the energy unit in the first energy bin.

[0041] In some embodiments, the first control bin and / or the unit bin is provided with a first bin door on the side of the first bin body away from the first energy bin.

[0042] In this embodiment, the land waste caused by the need to reserve a maintenance channel of more than 3m between adjacent energy storage devices in traditional energy storage devices is reduced, and only a normal paint repair maintenance channel needs to be reserved between the field-shaped energy storage devices, thereby improving the land investment income of users and improving the energy yield per unit area of users.

[0043] In some embodiments, the energy storage device comprises an energy storage bin, the energy storage bin comprises the first bin body and components arranged in the first bin body, and the weight of the energy storage bin is M, which is less than or equal to 45 tons.

[0044] In order to make a single energy storage bin meet the transportation limit requirements of some countries, the overall weight of the energy storage bin is controlled to be within 45 tons, and the integration degree of the energy storage bin is as high as possible, thereby reducing the workload of on-site installation; at the same time, the energy per unit area is improved, and the cost investment of customers is reduced.

[0045] The components arranged in the first bin body include components arranged in the first bin body and components arranged outside the first bin body and transported together with the first bin body, such as energy units, connecting pipelines, first control modules or first thermal management modules, etc.

[0046] Here, the energy storage bin refers to a cabinet body that can be transported and hoisted individually.

[0047] In some embodiments, the height of the first bin body is h, and 850mm≤h<2896mm.

[0048] In the embodiment, by setting the height dimension of the first bin body to 850mm≤h<2896mm, the total weight of the first bin body and its internal components is controlled to be less than 45 tons, and the volume and power of the energy storage bin are increased as much as possible, and the use cost of the energy storage bin is further reduced.

[0049] In some embodiments, 1300mm≤h≤2400mm.

[0050] Further, the volume and power of the energy storage bin are further increased, and the use cost of the energy storage bin is further reduced.

[0051] In some embodiments, the energy storage device comprises a second bin body arranged below the first bin body, and at least part of the energy units are accommodated in the second bin body.

[0052] In some embodiments, the energy storage device comprises a second control module configured to at least electrically control the plurality of energy units in the second bin body, and the second control module is accommodated in the second control bin.

[0053] In some embodiments, the second bin body has a second energy bin and a second control bin arranged along the length direction of the second bin body, at least part of the energy units are accommodated in the second energy bin, and the second control module is accommodated in the second control bin.

[0054] In some embodiments, the second control bin comprises a first control sub-bin and a second control sub-bin separated from each other, the second control module comprises a master control module and a second control part, the first control part is accommodated in the first control sub-bin, and the second control part is accommodated in the second control sub-bin.

[0055] The first control part at least comprises a master control module, and the second control part comprises at least one of a power distribution module and a fire control module.

[0056] In the embodiment, by arranging the first control sub-bin and accommodating at least the master control module in the first control sub-bin, the electrical safety of high-voltage power input and output is improved. By arranging the second control sub-bin and accommodating at least one of the power distribution module and the fire control module in the second control sub-bin, the power distribution of auxiliary source incoming lines and the electrical safety of each electrical device can be used for voltage level or AC / DC conversion.

[0057] In some embodiments, the energy storage device comprises a busbar, and the second bin body has a busbar bin in the interior, the busbar is accommodated in the busbar bin, and a plurality of energy units are connected to the busbar.

[0058] In this embodiment, by arranging the busbar storage bin in the interior of the second bin body for accommodating the high-voltage busbar, the assembly, maintenance or replacement of the busbar is facilitated.

[0059] In some embodiments, the second control bin and the second energy bin are arranged along the length direction of the second bin body.

[0060] Here, by arranging the second control bin at the end of the second bin body, the space utilization in the interior of the second bin body is maximized, and in addition, the second control bin can be arranged closer to the second energy bin, which facilitates the improvement of structural compactness.

[0061] In some embodiments, the busbar storage bin and the second energy bin are arranged along the length direction of the second bin body.

[0062] Here, by arranging the busbar storage bin at the end of the second bin body, the space utilization in the interior of the second bin body is maximized, and in addition, the busbar storage bin can be arranged closer to the second energy bin, which facilitates the improvement of structural compactness and wiring.

[0063] In some embodiments, the second control sub-bin is located above the busbar storage bin, and the second control sub-bin and the busbar storage bin are arranged along the width direction of the second bin body with the first control sub-bin.

[0064] Here, by arranging the second control sub-bin above the busbar storage bin, on the one hand, the master modules of the first control part and the master modules of the first control modules can be connected to the second control part through power lines and communication lines to realize power supply and signal communication, and on the other hand, by arranging the second control sub-bin above the busbar storage bin, the assembly, maintenance or replacement of the busbar is further facilitated.

[0065] In some embodiments, the second control bin and / or the busbar storage bin is provided with a second bin door on the side away from the second energy bin along the length direction of the second bin body.

[0066] In this embodiment, the land waste caused by the necessity of reserving a maintenance passage of more than 3m between adjacent energy storage bins in the traditional energy storage bin is reduced, and only a normal paint repair passage needs to be reserved between the energy storage bins in the checkered pattern, which improves the land investment income of the user and the energy yield per unit area of the user.

[0067] The embodiments of the present disclosure further provide an energy storage system, which comprises a power conversion device and the energy storage device described above, and the power conversion device is used for electrically connecting a power generation device and the energy storage device.

[0068] The embodiments of the present disclosure further provide a charging network, comprising a charging pile and the energy storage device or the energy storage system as described above, the energy storage device being configured to provide electric energy for the charging pile. BRIEF DESCRIPTION OF DRAWINGS

[0069] FIG. 1 is a structural schematic diagram of a charging network according to some embodiments of the present disclosure;

[0070] FIG. 2 is a structural schematic diagram of an energy storage system according to some embodiments of the present disclosure;

[0071] FIG. 3 is a structural schematic diagram of an energy storage device according to some embodiments of the present disclosure;

[0072] FIG. 4 is a front view of an energy storage device according to some embodiments of the present disclosure;

[0073] FIG. 5 is a left view of FIG. 4;

[0074] FIG. 6 is a partial structural schematic diagram of the energy storage device in FIG. 4;

[0075] FIG. 7 is a front view of an energy storage bin according to some embodiments of the present disclosure;

[0076] FIG. 8 is a left view of FIG. 7;

[0077] FIG. 9 is a front view of an energy storage bin according to some embodiments of the present disclosure;

[0078] FIG. 10 is a left view of FIG. 9;

[0079] FIG. 11 is a structural schematic diagram of a battery device according to some embodiments of the present disclosure;

[0080] FIG. 12 is a structural schematic diagram of a first control module according to some embodiments of the present disclosure;

[0081] FIG. 13 is a structural schematic diagram of a first thermal management module according to some embodiments of the present disclosure.

[0082] The reference signs are explained as follows: 1000, charging network; 2000, energy storage system; 100, energy storage device; 1, first energy storage bin; 11, first bin body; 111, partition; 112, first bin door; 114, first energy bin; 115, unit bin; 117, first control bin; 12, first thermal management module; 123, fan; 124, evaporator; 125, condenser; 126, compressor; 127, throttling device; 128, pumping device; 13, first control module; 131, main control module; 132, power distribution module; 133, general control module; 134, fire control module; 2, second energy storage bin; 21, second bin body; 211, second bin door; 212, second energy bin; 213, second control bin; 2131, first control sub-bin; 2132, second control sub-bin; 214, bus bin; 3, energy unit; 4, battery device; 41, box body; 411, first box body; 412, second box body; 42, thermal management component; 200, charging pile; 300, power conversion device; 3000, power generation device. DETAILED DESCRIPTION

[0083] All embodiments and optional embodiments of the present disclosure can be combined with each other to form new technical solutions if no special instructions are given.

[0084] All technical features and optional technical features of the present disclosure can be combined with each other to form new technical solutions if no special instructions are given.

[0085] With the development of clean energy, more and more devices use electric energy as driving energy, and then as power batteries that can store more electric energy and can be charged and discharged repeatedly, such as lithium ion batteries. Among them, power batteries are not only applied to energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, and aerospace and other fields.

[0086] In the embodiment of the present disclosure, the energy unit can be a secondary battery, which refers to an energy unit that can be activated by charging after discharging to continue to use.

[0087] 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. The present disclosure is not limited thereto.

[0088] The energy unit generally includes an electrode assembly. By way of example only, the electrode assembly includes a positive electrode, a negative electrode, and a separator disposed between the negative electrode and the positive electrode. During charging and discharging of the energy unit, active ions (e.g., lithium ions) are intercalated and deintercalated between the positive electrode and the negative electrode. The separator, which is disposed between the positive electrode and the negative electrode, prevents the positive electrode and the negative electrode from shorting while allowing the active ions to pass through.

[0089] In some embodiments, the positive electrode can be a positive electrode sheet, which can include a positive electrode current collector and a positive electrode active material disposed on at least one surface of the positive electrode current collector.

[0090] By way of example, the positive electrode active material can include at least one of lithium-containing phosphates, lithium transition metal oxides, and modified compounds of each thereof. However, the present disclosure is not limited to these materials, and other conventional materials that can be used as battery positive electrode active materials can also be used.

[0091] In some embodiments, the negative electrode can be a negative electrode sheet, which can include a negative electrode current collector.

[0092] By way of example, the negative electrode sheet can include a negative electrode current collector and a negative electrode active material disposed on at least one surface of the negative electrode current collector.

[0093] In some embodiments, the material of the positive electrode current collector can be aluminum, and the material of the negative electrode current collector can be copper.

[0094] In some embodiments, the electrode assembly further includes a separator disposed between the positive electrode and the negative electrode.

[0095] In some embodiments, the separator is a separator film. The present disclosure does not have a specific limitation on the type of separator film, and any known porous structure separator film having good chemical stability and mechanical stability can be used.

[0096] By way of example, the main material of the separator film can be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, and polyvinylidene fluoride, and ceramic.

[0097] In some embodiments, the separator is a solid-state electrolyte. The solid-state electrolyte is disposed between the positive electrode and the negative electrode, and functions to transport ions and separate the positive electrode and the negative electrode.

[0098] In some embodiments, the energy unit further includes an electrolyte, which functions to conduct ions between the positive electrode and the negative electrode. The present disclosure does not have a specific limitation on the type of electrolyte, and the electrolyte can be selected as needed. The electrolyte can be in a liquid state, a gel state, or a solid state.

[0099] The electrode assembly can have a wound structure, a stacked structure, or a hybrid structure of the wound and stacked structures.

[0100] In some embodiments, the electrode assembly is in a jelly-roll structure. The positive electrode sheet and the negative electrode sheet are wound into the jelly-roll structure.

[0101] In some embodiments, the electrode assembly is in a stack structure.

[0102] In some embodiments, the electrode assembly can have a cylindrical shape, a flat shape, or a multi-prism shape, etc.

[0103] In some embodiments, the electrode assembly is provided with tabs, which can guide the current out of the electrode assembly. The tabs include positive tabs and negative tabs.

[0104] In some embodiments, the energy unit can include a housing. The housing can 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, etc. In some embodiments, the housing can be a sealed structure, or a non-sealed structure. As an example, when the housing is a non-sealed structure, the housing serves to protect the electrode assembly, and a sealing bag is further included between the housing and the electrode assembly, which is used to package the electrode assembly and the electrolyte. Specifically, the sealing bag can be a bag-shaped insulating member or an aluminum-plastic film. When the housing is a sealed structure, it is used to package the electrode assembly, the electrolyte, etc.

[0105] As an example, the energy unit can be a cylindrical energy unit, a prismatic energy unit, a pouch energy unit, or an energy unit of other shapes, including a square-shell energy unit, a blade-shaped energy unit, a multi-prismatic battery (such as a hexagonal prismatic battery), etc., without specific limitation in the present disclosure.

[0106] In some embodiments, the housing includes an end cap and a shell body, the shell body is provided with an opening, and the end cap is arranged on the opening. The shell body can be provided with one or more openings. The end cap can also be provided with one or more openings.

[0107] In some embodiments, the housing is provided with at least one electrode terminal, which is electrically connected with the tabs. The electrode terminal can be directly connected with the tabs, or indirectly connected with the tabs through a current collecting member. The electrode terminal can be arranged on the end cap, or arranged on the shell body.

[0108] Power stations have increasingly high requirements for the area energy density of energy storage devices, so in order to improve the electric quantity, the total weight of the bin body and the components in the bin body will also increase accordingly. The energy storage bin needs to be transported from the production place to the use place by land and / or sea transportation, and there is a transportation weight limit for land and sea transportation in general. Therefore, there is a contradiction between the improvement of energy density and the weight of the energy storage bin.

[0109] In view of this, the embodiments of the present disclosure propose a new technical solution, and 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.

[0110] 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.

[0111] Please refer to Figure 1, which is a schematic diagram of the structure of a charging network 1000 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 device 100 or energy storage system 2000, which is electrically connected to charging piles 200 and is used to provide electrical energy to charging piles 200.

[0112] It should be noted that the charging pile 200 is electrically connected to the energy unit 3 in the energy storage device 100 via a cable, and the energy unit 3 can provide its stored electrical energy to the charging pile 200. The charging pile 200 has one or more connectors, which are used to connect to electrical equipment (such as vehicles) to replenish energy to the electrical equipment. The application of the energy storage device 100 in the charging network 1000 can effectively improve the reliability of the charging network 1000 and also help improve the flexibility of the charging network 1000 during deployment.

[0113] The energy storage device 100 may be located inside the charging pile 200 (eg, an integrated storage and charging device), or may be located outside the charging pile 200 .

[0114] In a charging network 1000 , there may be one charging pile 200 , and the energy storage device 100 provides power to the one charging pile 200 ; there may also be multiple charging piles 200 , and the energy storage device 100 provides power to multiple charging piles 200 .

[0115] The energy storage device 100 may include at least one energy storage bin, which includes multiple energy units 3. The multiple energy units 3 are accommodated in the energy storage bin, and the energy units 3 are electrically connected to the charging pile 200 so that the energy units 3 provide electrical energy to the charging pile 200.

[0116] As an example, as shown in FIG1 , a charging network 1000 includes one energy storage device 100 and two charging piles 200 , and one energy storage device 100 provides electrical energy to the two charging piles 200 .

[0117] Please refer to FIG. 2, which is a structural schematic diagram of an energy storage system 2000 according to an embodiment of the present disclosure. The embodiment of the present disclosure provides an energy storage system 2000. The energy storage system 2000 comprises a power conversion device, which can be electrically connected to a power generation device 3000 and an energy storage device 100 to convert the power provided by the power generation device 3000. The power conversion device guides the power provided by the power generation device 3000 into the energy storage device 100 after power conversion.

[0118] The power conversion device is used to connect between the power generation device 3000 and the energy storage device 100. The power generation device 3000 is used to generate power, and the power generation device 3000 is used to store the power generated by the power generation device 3000 into the energy storage device 100 through the power conversion device. The energy storage system 2000 applies the energy storage device 100, which can effectively improve the operation reliability of the energy storage system 2000. In specific implementation, the power generation device can be a solar panel, a water power generation device, a fire power generation device, etc. The specific type of the power generation device is not limited in the present disclosure.

[0119] As an example, as shown in FIG. 2, the energy storage system 2000 comprises the energy storage device 100 and the power conversion device, and two power generation devices 3000 respectively transmit the generated power to the power conversion device, and the power conversion device guides the power into the energy storage device 100 for storage.

[0120] Please refer to FIGS. 3-10, some embodiments of the present disclosure provide an energy storage device 100, which comprises a first storage body 11, a first control module 13, a first thermal management module 12, and a plurality of energy units 3.

[0121] As an example, the energy storage device 100 comprises a first energy storage bin 1, which comprises the first storage body 11, the first control module 13, the first thermal management module 12, and the plurality of energy units 3.

[0122] The first storage body 11 can be a cabinet or a container, and the first storage body 11 has a cavity inside, which can accommodate other components of the energy storage device. The first storage body 11 can be a hexahedral structure.

[0123] The first storage body 11 is usually a cuboid structure, and the length direction and the width direction of the first storage body 11 are parallel to the horizontal plane, and the length direction of the first storage body 11 is parallel to the longest side of the cuboid structure of the first storage body 11. The height direction of the first storage body 11 is perpendicular to the ground.

[0124] As an example, as shown in FIG. 3, the length direction of the first storage body 11 is represented by X, the width direction of the first storage body 11 is represented by Y, and the height direction of the first storage body 11 is represented by Z.

[0125] Here, the first housing 11 and the components arranged in the first housing 11 can form a complete system, that is, can provide or store electric energy alone. Of course, multiple housings can also form a complete system together to provide or store electric energy.

[0126] The energy storage device 100 includes a second housing 21 arranged below the first housing 11, and at least part of the energy units 3 are contained in the second housing 21.

[0127] Exemplarily, the energy storage device 100 includes a second energy storage compartment 2, which includes a second housing 21 and other components arranged in the second housing 21, and the first energy storage compartment 1 and the second energy storage compartment 2 are arranged along the height direction of the energy storage device 100.

[0128] Exemplarily, the first energy storage compartment 1 is located above the second energy storage compartment 2.

[0129] The first energy storage compartment 1 and the second energy storage compartment 2 are arranged along the height direction of the energy storage device 100, which can be understood as that the first energy storage compartment 1 and the second energy storage compartment 2 are stacked or connected along the height direction of the energy storage device 100.

[0130] Referring to FIGS. 3 to 7, the second energy storage compartment 2 in the energy storage device 100 can be one or more than one, for example, the energy storage device 100 includes one first energy storage compartment 1 and one second energy storage compartment 2, which are arranged in a stacked manner along the height direction; for another example, the energy storage device 100 includes one first energy storage compartment 1 and two second energy storage compartments 2, which are arranged in a stacked manner along the height direction.

[0131] Here, the single first energy storage compartment 1 and at least part of the single second energy storage compartment 2 can form a complete system, or the first energy storage compartment 1 and at least part of the second energy storage compartment 2 can form a complete system together to provide or store electric energy.

[0132] Referring to FIG. 6, the plurality of energy units 3 can form a plurality of layers and / or a plurality of columns of battery apparatuses 4, and each row or column of battery apparatuses 4 includes a plurality of battery apparatuses 4.

[0133] The battery apparatus 4 mentioned in the embodiments of the present disclosure can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, in parallel, or in a mixed manner through a busbar component.

[0134] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells.

[0135] As an example, the battery cell assembly can be a battery module, which is formed by arranging and fixing a plurality of battery cells into one independent module. As an example, the battery module can be formed by bundling a plurality of battery cells by a cable tie.

[0136] In some embodiments, the battery device 4 can be a battery pack, which includes a box 41 and one or more battery cell assemblies accommodated in the box 41.

[0137] As an example, the battery cell assembly can be a battery module, which can be accommodated in the box 41 by fixing the battery module in the box 41.

[0138] As an example, the battery cell assembly can also be accommodated in the box 41 by fixing a plurality of battery cells directly in the box 41.

[0139] As an example, referring to FIG. 11, the box 41 can include a first box 411 and a second box 412. The first box 411 and the second box 412 are buckled so that an enclosed space is formed inside the box 41 to accommodate the battery cell assembly. Here, the enclosed means covered or closed, which can be sealed or unsealed. The first box 411 can be a top cover or a bottom plate.

[0140] As an example, the box 41 can include a top cover, a frame and a bottom plate. The top cover and the bottom plate are respectively connected with the frame so that an enclosed space is formed inside the box 41 to accommodate the battery cell assembly.

[0141] As an example, the first box 11 has a first energy compartment 114 inside, and a plurality of energy units 3 are accommodated in the first energy compartment 114.

[0142] The first energy compartment 114 accommodates a plurality of energy units 3, which can be a battery module or a battery pack.

[0143] It should be noted that the size of the first box 11 is not limited here.

[0144] As an example, the size of the first box 11 in the height direction is smaller than the size of a standard container in the height direction.

[0145] Referring to FIG. 3 and FIG. 7, the length dimension a of the first container body 11 is the distance between the two ends of the first container body 11 along the length direction; the width dimension b of the first container body 11 is the distance between the two ends of the first container body 11 along the width direction; and the height dimension h of the first container body 11 is the distance between the two ends of the first container body 11 along the height direction. The above-mentioned dimensions a, b and h are the maximum dimensions of the outer contour of the first container body 11 in the corresponding direction. The first container body 11 can include eight corner pieces and six box walls, the eight corner pieces are located at the eight corners of the cuboid structure of the first container body 11, and the eight corner pieces respectively protrude from the box walls of the first container body 11, the total span of the two corner pieces arranged along the height direction is the height of the first container body 11, the total span of the two corner pieces arranged along the length direction is the length of the first container body 11, and the total span of the two corner pieces arranged along the width direction is the width of the first container body 11. When calculating the dimensions of the first container body 11, the pipelines and cables connected to the first container body 11 and located outside the first container body 11 can not be included in the dimensions of the first container body 11.

[0146] The standard container can be a standard container size in the transportation process, such as 10 feet, 20 feet, 30 feet, 40 feet or 45 feet, which meets the corresponding standards, and the length, width and height thereof have corresponding dimensions respectively. The standard container can refer to GB / T1413-2023 series 1 container classification, size and rated mass.

[0147] The 10 feet can include: the length dimension is 2991mm, the tolerance is 0mm-5mm; the width dimension is 2438mm, the tolerance is 0mm-5mm; and the height dimension is 2438mm or less than 2438mm; the tolerance is 0mm-5mm.

[0148] The 20 feet can include: the length dimension is 6058mm, the tolerance is 0mm-6mm; the width dimension is 2438mm, the tolerance is 0mm-5mm; and the height dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0149] The 30 feet can include: the length dimension is 9125mm, the tolerance is 0mm-10mm; the width dimension is 2438mm, the tolerance is 0mm-5mm; and the height dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0150] The 40 feet can include: a length dimension of 12192mm, a tolerance of 0mm-10mm; a width dimension of 2438mm, a tolerance of 0mm-5mm; and a height dimension of 2896mm, 2591mm or no more than 2438mm; a tolerance of 0mm-5mm.

[0151] The 45 feet can include: a length dimension of 13716mm, a tolerance of 0mm-10mm; a width dimension of 2438mm, a tolerance of 0mm-5mm; and a height dimension of 2591mm or 2896mm; a tolerance of 0mm-5mm.

[0152] In the embodiments of the present disclosure, for the first bin body 11 of various sizes, the dimensions within the range of ±1%, ±2%, ±3%, ±4%, ±5% of the size can be considered as dimensions within the tolerance range.

[0153] The size of the first bin body 11 in the height direction is set to be smaller than the size of a standard container in the height direction. By reducing the size of the first bin body 11, the total weight of the first bin body 11 containing components such as energy units 3 can be reduced, which is beneficial to improve the problem of transportation overweight and reduce the transportation cost of the energy storage bin.

[0154] In some embodiments, the standard container is a 20 feet standard container, and the height of the standard container is 2896mm, 2591mm or 2438mm.

[0155] In some embodiments, referring to FIGS. 3-10, the size of the first bin body 11 in the length direction is consistent with the size of the standard container in the length direction, and the size of the first bin body 11 in the width direction is consistent with the size of the standard container in the width direction.

[0156] In this embodiment, by setting the size of the first bin body 11 in the length direction to be consistent with the size of the standard container in the length direction, and setting the size of the first bin body 11 in the width direction to be consistent with the size of the standard container in the width direction, it is beneficial to match the existing standard container transportation tools and spreaders, thereby reducing the transportation cost of the energy storage bin, and thus reducing the use cost of the energy storage bin.

[0157] In some embodiments, referring to FIGS. 5 and 12, the energy storage device 100 includes a first control module 13 for electrically controlling a plurality of energy units 3 in the first bin body 11.

[0158] For example, the first bin body 11 has a first control bin 117 inside, and the first control module 13 is accommodated in the first control bin 117.

[0159] In this embodiment, by arranging the first control module 13, the first control module 13 can control the power input or output of the energy unit 3, thereby realizing electrical control of the energy unit 3.

[0160] In some embodiments, referring to FIGS. 3-10, the energy storage device 100 comprises a first thermal management module 12, which is used at least for managing the temperature of the plurality of energy units 3 in the first storage body 11.

[0161] In this embodiment, by arranging the first thermal management module 12, the first thermal management module 12 can be used for managing the temperature of the energy unit 3, thereby reducing the risk of temperature runaway of the energy unit 3.

[0162] Here, the second energy storage compartment 2 can not contain a thermal management module, i.e., the second storage body 21 can not contain a thermal management module, and the second energy storage compartment 2 can manage the temperature of the energy unit 3 by the first thermal management module 12, for example. That is, the first thermal management module 12 can manage the temperature of the energy unit 3 in the first energy storage compartment 1 and the second energy storage compartment 2.

[0163] Of course, the second energy storage compartment 2 can contain a second thermal management module, i.e., the first energy storage compartment 1 and the second energy storage compartment 2 both contain a thermal management module, and the first thermal management module 12 and the second thermal management module can jointly act on the plurality of energy units 3 in the first energy storage compartment 1 and the second energy storage compartment 2 to control the temperature; or the first thermal management module 12 of the first energy storage compartment 1 and the second thermal management module of the second energy storage compartment 2 can act independently, i.e., the first thermal management module 12 of the first energy storage compartment 1 controls the temperature of the plurality of energy units 3 in the first storage body 11, and the second thermal management module of the second energy storage compartment 2 controls the temperature of the plurality of energy units 3 in the second storage body 21.

[0164] In addition, the first thermal management module 12 is installed together with the first storage body 11, and the pipeline and circuit of the first thermal management module 12 are connected when the product is shipped, thereby reducing the installation workload of the pipeline and circuit of the first thermal management module 12 and being conducive to reducing the installation cost.

[0165] Here, the fan 123 and the condenser 125 are arranged outside the first storage body 11, which means that the fan 123 and the condenser 125 are arranged in the first storage body 11 and are in communication with the external environment, which is conducive to heat exchange between the fan 123 and the condenser 125 and the external environment.

[0166] For example, the fan 123 can blow air towards the condenser 125 to dissipate heat from the condenser 125.

[0167] It can be understood that the fan 123 and the condenser 125 can be directly arranged on the outer side wall of the first cabinet body 11, or the first cabinet body 11 can form a mounting area, and the fan 123 and the condenser 125 are arranged in the mounting area.

[0168] In this embodiment, by arranging the fan 123 and the condenser 125 outside the first cabinet body 11, the heat dissipation of the first thermal management module 12 is facilitated, so that the first thermal management module 12 can have more heat dissipation channels, the temperature control effect of the first thermal management module 12 is improved, and the auxiliary power consumption of the first thermal management module 12 is reduced.

[0169] The energy storage device 100 provided by the embodiment of the present disclosure reduces the workload of on-site installation by integrating the first control module 13, the first thermal management module 12, and the plurality of energy units 3 in the first cabinet body 11, thereby reducing the use cost of the energy storage cabinet and improving the convenience of the energy storage device 100. In addition, the first cabinet body 11 and the parts arranged in the first cabinet body 11 can form a complete system, that is, the power can be provided or stored separately, further improving the convenience of the energy storage device 100. Furthermore, by arranging the fan 123 and the condenser 125 of the first thermal management module 12 outside the first cabinet body 11, the heat dissipation of the first thermal management module 12 is facilitated, so that the first thermal management module 12 can have more heat dissipation channels, the temperature control effect of the first thermal management module 12 is improved, and the auxiliary power consumption of the first thermal management module 12 is reduced.

[0170] There are various ways to arrange the fan 123 outside the first cabinet body 11. For example, the fan 123 is arranged on the top or side of the first cabinet body 11.

[0171] In the embodiment in which the fan 123 is arranged on the top of the first cabinet body 11, the fan 123 can be used to block the heat radiation of the top, thereby reducing the influence of heat radiation on the inside of the first cabinet body 11.

[0172] In the embodiment in which the fan 123 is arranged on the side of the first cabinet body 11, the overall height of the energy storage device 100 is reduced.

[0173] There are various ways to arrange the condenser 125 outside the first cabinet body 11. For example, the condenser 125 is arranged on the top or side of the first cabinet body 11.

[0174] In the embodiment in which the condenser 125 is arranged on the top of the first cabinet body 11, the condenser 125 can be used to block the heat radiation of the top, thereby reducing the influence of heat radiation on the inside of the first cabinet body 11.

[0175] In the embodiment in which the condenser 125 is arranged on the side of the first cabinet body 11, the overall height of the energy storage device 100 is reduced.

[0176] It should be noted that the specific type of the first thermal management module 12 is not limited herein.

[0177] In some embodiments, referring to FIG. 13, the energy storage device 100 comprises a thermal management component 42, and the first thermal management module 12 comprises a pumping device 128, an evaporator 124, a compressor 126, a throttling device 127, and a condenser 125.

[0178] The pumping device 128, the evaporator 124, and the thermal management component 42 are sequentially connected to form a cooling circulation loop, and the compressor 126, the condenser 125, the throttling device 127, and the evaporator 124 are sequentially connected to form a refrigerant circulation loop. The refrigerant in the refrigerant circulation loop exchanges heat with the coolant in the cooling circulation loop in the evaporator 124, and the coolant flowing through the thermal management component exchanges heat with the energy unit.

[0179] The components of the first thermal management module 12 are independent of the energy unit 3, thereby reducing the risk of mutual interference between the first thermal management module 12 and the energy unit 3.

[0180] It should be noted that the pumping device 128 (also referred to as a water pump) is a component for transporting coolant. The coolant can be, but is not limited to, a mixture of ethylene glycol and water, etc.

[0181] Under the transportation effect of the pumping device 128, the coolant can circulate in the cooling circulation loop and circulate through the pumping device 128, the evaporator 124, the thermal management component 42, and the pumping device 128. The above connection can be direct connection or indirect connection via a pipeline.

[0182] By adopting the above scheme, the coolant can circulate through the thermal management component 42 to exchange heat with the energy unit 3, thereby cooling the energy unit 3; the coolant after exchanging heat with the energy unit 3 can also circulate through the evaporator 124 and exchange heat with the evaporator 124, thereby exchanging the heat exchanged from the energy unit 3 to the evaporator 124, so that the coolant is cooled.

[0183] In some embodiments, the compressor 126, the condenser 125, the throttling device 127, the evaporator 124, and the compressor 126 are sequentially connected to form a refrigerant circulation loop.

[0184] It should be noted that the above connection can be direct connection or indirect connection via a pipeline. The compressor 126 is a component that provides power for the refrigerant circulation and can cool the refrigerant. The throttling device 127 is a component for reducing temperature and pressure, and the throttling device 127 can be, but is not limited to, a throttle valve, an expansion valve, etc. The condenser 125 is a component for exchanging heat with the refrigerant flowing therethrough.

[0185] The refrigerant has a low boiling point and evaporation heat, can be evaporated and condensed at a relatively low temperature, and can achieve the effect of refrigeration by absorbing and releasing heat. The refrigerant can be, but is not limited to, freon, ammonia, carbon dioxide, etc.

[0186] The evaporator 124 is arranged in the cooling liquid circulation loop and the refrigerant circulation loop. The evaporator 124 is internally provided with a cooling liquid flow channel and a refrigerant flow channel. The cooling liquid flow channel participates in forming the cooling liquid circulation loop and is used for flowing the cooling liquid therein. The refrigerant flow channel participates in forming the refrigerant circulation loop and is used for flowing the refrigerant therein. The cooling liquid flow channel and the refrigerant flow channel are not communicated with each other, so that the cooling liquid and the refrigerant are not mixed. In the evaporator 124, the cooling liquid and the refrigerant can exchange heat, and in particular, the heat of the cooling liquid can be exchanged to the refrigerant, so that the evaporator 124 can cool the cooling liquid flowing therethrough.

[0187] In some embodiments, referring to FIG. 13, the first thermal management module 12 includes the evaporator 124, the first thermal management module 12 includes the refrigerant circulation loop, and the evaporator 124 and the condenser 125 are located in the refrigerant circulation loop. The evaporator 124 is arranged outside the first cabinet 11.

[0188] Here, the evaporator 124 arranged outside the first cabinet 11 means that the evaporator 124 is arranged in the first cabinet 11 and is in communication with the external environment, so that the evaporator 124 is beneficial to exchange heat with the external environment.

[0189] The evaporator 124 arranged outside the first cabinet 11 can be arranged in various ways. For example, the evaporator 124 is arranged at the top or the side of the first cabinet 11.

[0190] In the embodiment in which the evaporator 124 is arranged at the top of the first cabinet 11, the evaporator 124 can be used to shield the heat radiation of the top, thereby reducing the influence of the heat radiation on the inside of the first cabinet 11.

[0191] In the embodiment in which the evaporator 124 is arranged at the side of the first cabinet 11, it is beneficial to reduce the overall height of the energy storage device 100.

[0192] In some embodiments, referring to FIG. 13, the first thermal management module 12 includes a cooling tank and a ball valve.

[0193] The cooling tank is used to contain the cooling liquid.

[0194] The compressor 126, the throttling device 127, the pumping device 128, the cooling box and / or the ball valve are arranged in the first storage body 11, so that the overall gravity center height of the energy storage device 100 is reduced to a certain extent, which is beneficial to transportation safety. In addition, due to the size of the energy unit 3, the energy unit 3 cannot be fully inserted into the first storage body 11. By arranging the compressor 126, the throttling device 127, the pumping device 128, the cooling box and / or the ball valve in the first storage body 11, the space in the first storage body 11 can be fully utilized, and the space utilization of the first storage body 11 is further improved, and the structure is compact. In addition, during the assembly, maintenance or replacement of the compressor 126, the throttling device 127, the pumping device 128, the cooling box and / or the ball valve, it is not necessary to climb too high, so that the assembly, maintenance or replacement of the compressor 126, the throttling device 127, the pumping device 128, the cooling box and / or the ball valve is facilitated.

[0195] In some embodiments, referring to FIG. 12, the first control module 13 includes at least one of a master control module 131, a power distribution module 132, a general control module 133 and a fire control module 134.

[0196] The energy unit 3 and the master control module 131 are electrically connected. The master control module 131 and the general control module 133 are electrically connected. The master control module 131, the general control module 133 and the fire control module 134 are electrically connected with the power distribution module 132.

[0197] The master control module 131 is used to control the input and output of high-voltage electrical energy of the energy unit 3 in the first storage body 11. The general control module 133 is used to control the switching action of the master control module 131 in the first storage body 11.

[0198] The fire control module 134 is used to control the action of the fire-fighting element when the first storage body 11 temperature imbalance causes a fire. The fire-fighting element can be a fire extinguisher, etc. The fire-fighting element can be arranged in the first storage body 11.

[0199] The power distribution module 132 is used to electrically connect the master control module 131, the general control module 133 and the fire control module 134, so as to facilitate the circuit conduction of the master control module 131, the general control module 133 and the fire control module 134, and maintain the normal operation of the master control module 131, the general control module 133 and the fire control module 134.

[0200] Exemplarily, the second energy storage bin 2 can not contain a control module. Exemplarily, the second energy storage bin 2 can control the electrical energy input or output of the energy unit 3 in the second storage body 21 through the first control module 13, that is, the first control module 13 can control the electrical energy input or output of the energy unit 3 in the first storage body 11 and the second storage body 21.

[0201] Exemplarily, referring to FIG. 5, the second energy storage bin 2 can accommodate a second control module, that is, the first energy storage bin 1 and the second energy storage bin 2 both accommodate control modules, the first control module 13 of the first energy storage bin 1 is used to control the electric energy input or output of the energy unit 3 in the first bin body 11, and the second control module of the second energy storage bin 2 is used to control the electric energy input or output of the energy unit 3 in the second bin body 21.

[0202] Exemplarily, the first energy storage bin 1 can not accommodate a control module, and exemplarily, the first energy storage bin 1 can control the electric energy input or output of the energy unit 3 in the first bin body 11 through the second control module, that is, the second control module can control the electric energy input or output of the energy unit 3 in the first bin body 11 and the second bin body 21.

[0203] Of course, one first bin body 11 can have multiple first control modules 13, multiple energy units 3 are connected in series to form a battery cluster, and multiple battery clusters are connected in parallel, and one first control module 13 can correspond to control one or more battery clusters.

[0204] Here, the first control module 13 and the second control module can be the same or different.

[0205] In addition, the first control module 13 is installed with the first bin body 11, the pipeline and circuit of the first control module 13 are connected when delivered, the installation workload of the pipeline and circuit of the first control module 13 on site is reduced, and the installation cost is reduced.

[0206] In some embodiments, the energy storage device 100 includes an energy storage bin, the energy storage bin includes a first bin body 11 and components arranged on the first bin body 11, and the weight of the energy storage bin is M, M is less than or equal to 45 tons.

[0207] The weight of the energy storage bin includes the weight of the first bin body 11, the energy unit 3, the connecting pipeline, the first control module 13, and the first thermal management module 12.

[0208] Here, the energy storage bin refers to a cabinet body that can be transported and hoisted separately.

[0209] Exemplarily, the weight of the energy storage bin can be any one of 10 tons, 15 tons, 20 tons, 25 tons, 30 tons, 35 tons, 45 tons, or any point value between any two of them.

[0210] In the process of hoisting the energy storage bin, the hoisting of the related hoisting device is facilitated, and the transfer work of the energy storage bin is facilitated.

[0211] In order to make a single energy storage bin meet the transportation limit requirements of some countries, control the overall weight of the energy storage bin to be less than 45 tons, and make the integration of the energy storage bin as high as possible to reduce the workload of on-site installation; at the same time, improve the energy per unit area and reduce the customer's cost investment.

[0212] In some embodiments, referring to FIG. 3, the height dimension of the first bin body 11 is h, and 850mm≤h<2896mm.

[0213] Exemplarily, the height dimension of the first bin body 11 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 a point value between any two of them.

[0214] In this embodiment, by setting the height dimension of the first bin body 11 to 850mm≤h<2896mm, the total weight of the first bin body 11 and its internal components is controlled to be less than 45 tons, and the volume and power of the energy storage bin can be improved as much as possible, further reducing the use cost of the energy storage bin.

[0215] In some embodiments, the height dimension of the first bin body 11 is h, and 1300mm≤h≤2400mm.

[0216] Exemplarily, the height dimension of the first bin body 11 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, 2400mm or a point value between any two of them.

[0217] Further, it is further beneficial to improve the volume and power of the energy storage bin, and further reduce the use cost of the energy storage bin.

[0218] The first bin body 11 has a first energy bin 114 and a first control bin 117 inside, the first control module 13 is accommodated in the first control bin 117, and at least part of the energy unit 3 is accommodated in the first energy bin 114.

[0219] The first control bin 117 can be arranged in various ways with the first energy bin 114.

[0220] In some embodiments, the first control bin 117 and the first energy bin 114 are arranged along a height direction of the first bin body 11.

[0221] For example, the first control bin 117 is arranged above the first energy bin 114, or the first energy bin 114 is arranged above the first control bin 117.

[0222] For example, referring to FIGS. 6-10, the first control bin 117 and the first energy bin 114 are arranged along a length direction of the first bin body 11.

[0223] Here, by arranging the first control bin 117 at an end of the first bin body 11, the space utilization inside the first bin body 11 is maximized, and in addition, the first control bin 117 and the first energy bin 114 can be arranged closer, which is beneficial to improve the compactness of the structure.

[0224] Of course, the first control bin 117 can also be arranged in the middle of the first energy bin 114 along the length direction of the first bin body 11.

[0225] In some embodiments, referring to FIGS. 7-10, the first bin body has a unit bin 115 inside, part of the first thermal management module 12 is accommodated in the unit bin 115, and the first control bin 117 and the unit bin 115 are arranged along a height direction of the first bin body 11.

[0226] For example, the first thermal management module 12 can have other components in addition to the fan 123 and the condenser 125 arranged outside the first bin body 11, which can be arranged in the unit bin 115.

[0227] Here, the evaporator 124 can be arranged in the unit bin 115 or outside the first bin body 11.

[0228] That is, the first control module 13 can be arranged along the length direction of the first bin body 11 with the first energy bin 114 and located above the unit bin 115, or located below the unit bin 115.

[0229] In some embodiments, the first control module 13 and the unit bin 115 are arranged along the length direction of the first bin body 11.

[0230] That is, the first control module 13 can be arranged along the length direction of the first cabinet 11 with the first energy cabinet 114, and the first control module 13 can be at the left end of the unit cabinet 115 (i.e., the first control module 13 can be between the first energy cabinet 114 and the unit cabinet 115), or the first control module 13 can be at the right end of the unit cabinet 115 (i.e., the first control module 13 can be on the side of the unit cabinet 115 away from the first energy cabinet 114).

[0231] In some embodiments, referring to FIG. 5, the first control cabinet 117 and the unit cabinet 115 are arranged along the width direction of the first cabinet 11.

[0232] That is, the first control module 13 can be arranged along the length direction of the first cabinet 11 with the first energy cabinet 114, and the first control module 13 can be at the left end of the unit cabinet 115 (i.e., the first control module 13 can be between the first energy cabinet 114 and the unit cabinet 115), or the first control module 13 can be at the right end of the unit cabinet 115 (i.e., the first control module 13 can be on the side of the unit cabinet 115 away from the first energy cabinet 114).

[0233] In some embodiments, referring to FIG. 9 and FIG. 10, the fan 123 and the condenser 125 can be above the unit cabinet 115, and referring to FIG. 7 and FIG. 8, the fan 123 and the condenser 125 can be arranged along the length direction of the first cabinet 11 with the unit cabinet 115.

[0234] In some embodiments, referring to FIG. 5 to FIG. 10, the first cabinet 11 includes a partition 111.

[0235] For example, the partition 111 is arranged between the first energy cabinet 114 and the first control cabinet 117, and the first energy cabinet 114 and the first control cabinet 117 share the partition 111.

[0236] For example, the partition 111 is arranged between the first energy cabinet 114 and the unit cabinet 115, and the first energy cabinet 114 and the unit cabinet 115 share the partition 111.

[0237] For example, the partition 111 is arranged between the first control cabinet 117 and the unit cabinet 115, and the first control cabinet 117 and the unit cabinet 115 share the partition 111.

[0238] Here, the partition 111 can include a metal plate.

[0239] Here, the partition 111 is conducive to improving the structural strength of the first cabinet 11, and is also conducive to improving the sealing performance and thermal insulation performance of the first energy cabinet 114.

[0240] The partition 111 is provided with heat exchange pipelines and connecting wiring harnesses, which include high-voltage wiring harnesses and / or low-voltage wiring harnesses. The first thermal management module 12 in the first control compartment 117 can exchange heat with the energy unit 3 in the first energy compartment 114 through the heat exchange pipeline (for example, a liquid cooling pipeline), and the first control module 13 in the first control compartment 117 can electrically control the energy unit 3 in the first energy compartment 114 through the connecting wiring harness.

[0241] As an example, when the heat exchange pipeline and the connecting harness pass through the partition 111, the passing position can be sealed.

[0242] Exemplarily, the interior of the partition 111 is filled with a heat insulating medium.

[0243] Here, the heat insulating medium may be some heat insulating material, such as heat insulating cotton.

[0244] The heat-insulating medium is beneficial to improving the structural strength of the partition 111 and can also play a flame retardant and heat-insulating role, which is beneficial to reducing the heat loss of the first energy bin 114 and the impact of external heat on the energy unit 3 in the first energy bin 114.

[0245] Illustratively, the partition 111 separates the first thermal management module 12 and the first control module 13 , reducing the risk of interference between the first thermal management module 12 and the first control module 13 , thereby improving the reliability of the energy storage device 100 .

[0246] The first thermal management module 12 and the first control module 13 are separated by a partition 111. The partition 111 can separate the first thermal management module 12 and the first control module 13, thereby reducing the interference of the first thermal management module 12 on the first control module 13, that is, reducing the electromagnetic interference of the high-voltage line on the low-voltage line, and also reducing the impact of external rainfall or sunlight exposure on the first control module 13.

[0247] In some embodiments, referring to FIG. 5 , a first compartment door 112 is provided on the side of the first control compartment 117 and / or the unit compartment 115 away from the first energy compartment 114 along the length direction of the first compartment body 11 .

[0248] Here, the first compartment door 112 may be an inspection door. By providing the inspection door, it is convenient to inspect the first control compartment 117 and / or the second unit compartment 116 of the energy storage compartment through the inspection door.

[0249] In this embodiment, it is beneficial to reduce the land waste of traditional energy storage bins that must reserve maintenance channels of more than 3m between adjacent energy storage bins. Only normal paint repair channels need to be reserved between the grid energy storage bins, which increases the user's land investment returns and increases the user's energy benefits per unit area.

[0250] In order to facilitate the rapid installation of the customer on site, the first control module 13 and the first thermal management module 12 are integrated inside the first warehouse body 11, and after the first warehouse body 11 is stacked on site, it can be connected with the PCS and the EMS, which is beneficial to reduce the workload of on-site assembly, improve the assembly efficiency, and facilitate the use of customers.

[0251] The PCS (Power Conversion System) can control the charging and discharging process of the battery, convert AC and DC, and directly power the AC load in the absence of a power grid. The PCS is composed of a DC / AC bidirectional converter, a control unit, etc. The PCS controller receives the background control instructions through communication, controls the charging or discharging of the battery according to the sign and size of the power instruction, and realizes the adjustment of the active power and reactive power of the power grid. The PCS controller communicates with the BMS through the CAN interface to obtain the battery pack state information, and can realize the protective charging and discharging of the battery.

[0252] The EMS (Energy Management System) is a collection of software and hardware used for monitoring, controlling, analyzing, and optimizing energy systems. It realizes efficient management and optimal allocation of energy by real-time monitoring and intelligent control of each link of energy production, distribution, and consumption.

[0253] In some embodiments, the PCS can also be integrated inside the first warehouse body 11.

[0254] In some embodiments, referring to FIG. 6, the energy storage device 100 includes a plurality of battery devices 4, each battery device 4 including a thermal management component 42 and a plurality of energy units 3, the thermal management component 42 being used to adjust the temperature of the energy units 3. The thermal management module is in communication with the plurality of thermal management components 42 through a liquid cooling pipe, the liquid cooling pipe including a main pipe and a plurality of branch pipes, the plurality of branch pipes being connected in parallel to the main pipe, the main pipe being in communication with the thermal management module, and the plurality of branch pipes being in communication with the plurality of thermal management components 42, respectively; the main pipe is located above the plurality of battery devices 4, or the main pipe is located below the plurality of battery devices 4.

[0255] As an example, the thermal management component 42 can be plate-shaped or tubular, etc., and a flow channel is provided inside the thermal management component 42, which can be used to pass in a fluid to heat or cool the energy units 3. The fluid can be a refrigerant or a coolant.

[0256] When the battery device 4 is a battery module, the thermal management component 42 can be the bottom plate, top plate, or side plate of the battery module, or can be located between adjacent energy units 3.

[0257] When the battery device 4 is a battery pack, referring to FIG. 11, the heat management component 42 can be part of the box 41 or the heat management component 42 is located in the containing space of the box 41, the heat management component 42 can also be located between adjacent energy units 3.

[0258] In the embodiment in which the main pipe is located above the plurality of battery devices 4, it is beneficial for the liquid cooling medium to flow from top to bottom through the main pipe to the plurality of branch pipes to cool the battery devices 4.

[0259] In the embodiment in which the main pipe is located below the plurality of battery devices 4, it is beneficial for the liquid cooling medium to flow from bottom to top through the main pipe to the plurality of branch pipes to cool the battery devices 4.

[0260] Here, by arranging the main pipe above the plurality of battery devices 4, or below the plurality of battery devices 4, it is beneficial to shorten the liquid cooling pipe, thereby reducing the cost and improving the cooling efficiency.

[0261] In some embodiments, the energy unit 3 is a battery cell, and the weight of a single energy unit 3 is 5kg to 60kg.

[0262] The weight of a single energy unit 3 can be any one of 5kg, 10kg, 15kg, 20kg, 25kg, 30kg, 35kg, 40kg, 45kg, 50kg, 55kg, 60kg or any point value between any two of them. As an example, the mass of a single energy unit 3 is 30kg.

[0263] The weight of the energy unit 3 is appropriate so that a suitable amount of energy units 3 can be placed in the first warehouse body 11, and the energy density is moderate under the condition of meeting the transportation requirements.

[0264] In some embodiments, the weight of the energy storage warehouse is M, the total weight of the energy units 3 in the first warehouse body 11 is M1, (M1 / M) x 100% ≥ 60%.

[0265] Exemplarily, (M1 / M) x 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.

[0266] In this way, on the one hand, the weight proportion of the energy units 3 in the first bin body 11 per unit volume can be increased, and the power of the energy storage device 100 per unit volume can be increased; on the other hand, during the transportation of the energy storage bin, more energy units 3 that contribute to the storage energy and have high production difficulty and cannot be produced at the destination are transported, and other structures can be produced at a location close to the destination without being transported or with reduced transportation, which is conducive to reducing the transportation cost of the assembled energy storage bin.

[0267] In some embodiments, (M1 / M) x 100% ≥ 80%.

[0268] For example, (M1 / M) x 100% can be 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, or 90%, etc.

[0269] In this way, the transportation cost of the assembled energy storage bin can be further reduced.

[0270] In some embodiments, the weight of the energy storage bin is M, the first bin body 11 is provided with a plurality of battery devices 4, the battery device 4 includes a box body 41 and a plurality of energy units 3, the plurality of energy units 3 are contained in the box body 41, the total weight of the battery device 4 is M2, and 70% ≤ (M2 / M) x 100% ≤ 90%.

[0271] (M2 / M) x 100% can be 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.

[0272] When (M2 / M) x 100% ≥ 70%, the weight proportion of the energy units 3 in the first bin body 11 per unit volume can be increased, and the energy density of the first bin body 11 can be increased; when (M2 / M) x 100% ≤ 90%, the structural strength of the first bin body 11 can be maintained. Therefore, when 70% ≤ (M2 / M) x 100% ≤ 90%, the energy density of the energy storage bin and the structural strength of the first bin body 11 can be considered, and the practicability of the first bin body 11 is stronger.

[0273] In some embodiments, referring to FIG. 6, the plurality of battery devices 4 can be arranged in rows and columns, the plurality of battery devices 4 in each row are arranged along the length direction, the plurality of battery devices 4 in each column are arranged along the height direction, and each battery device 4 includes a thermal management component 42 and a plurality of energy units 3.

[0274] For example, the plurality of battery devices 4 are arranged in 2 layers and 2 columns, 3 layers and 3 columns, 4 layers and 4 columns, 4 layers and 3 columns, etc.

[0275] It should be noted that the plurality of battery devices 4 can 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.

[0276] In some embodiments, the volume of the first container body 11 is V, the total volume of the energy units 3 in the first container body 11 is V1, and (V1 / V) x 100% ≥ 30%.

[0277] The energy unit 3 includes a shell, and the volume of the energy unit 3 is the volume of the shell. For example, the energy unit 3 is a cuboid energy unit 3, and the product of the length, width, and height of the cuboid energy unit 3 is the product of the length, width, and height of the shell.

[0278] In embodiments in which the energy unit 3 further includes an electrode terminal, the electrode terminal is disposed on the shell and partially protrudes from the shell, the electrode terminal is electrically connected to the electrode assembly, and the portion of the electrode terminal protruding from the shell is not included in the volume of the energy unit 3.

[0279] (V1 / V) x 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.

[0280] On the one hand, the volume ratio of the energy unit 3 in the unit volume of the first container body 11 can be increased, and the electric quantity of the unit volume of the energy storage container can be increased; on the other hand, during transportation of the energy storage container, more energy units 3 that contribute to energy storage and have high production difficulty and cannot be produced at the destination are transported, and other functional elements such as control elements of the energy storage container can be produced at a location close to the destination without being transported or with reduced transportation, which is conducive to reducing the transportation cost of the assembled energy storage container.

[0281] In some embodiments, (V1 / V) x 100% ≥ 50%.

[0282] (V1 / V) x 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.

[0283] Further conducive to reducing the transportation cost of the assembled energy storage container.

[0284] In some embodiments, the volume of the first compartment 11 is V, and multiple battery devices 4 are arranged in the first compartment 11. The battery device 4 includes a box body 41 and multiple energy units 3. The multiple energy units 3 are accommodated in the box body 41. The total volume of the battery device 4 is V2, 50%≤(V2 / V)×100%≤80%.

[0285] The volume of the energy unit 3 is the volume of the box 41. For example, if the box 41 is a rectangular parallelepiped structure, the volume of the energy unit 3 is equal to the product of the length, width and height of the box 41.

[0286] (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.

[0287] When (V2 / V)×100%≥50%, the volume ratio of the energy unit 3 per unit volume of the first storage body 11 can be increased, thereby improving the energy density of the energy storage compartment. When (V2 / V)×100%≤80%, the first storage body 11 can have sufficient volume for structural components to maintain the structural strength of the first storage body 11. Therefore, when 50%≤(V2 / V)×100%≤80%, both the energy density of the energy storage compartment and the structural strength of the first storage body 11 can be taken into account, making the first storage body 11 more practical.

[0288] In some embodiments, refer to FIG6 , the energy of the energy storage bin is E, the dimension of the first bin body 11 along the length direction of the first bin body 11 is a, the dimension of the first bin body 11 along the width direction of the first bin body 11 is b, 250KW / m 2 ≤E / (a×b)≤700KW / m 2 .

[0289] E / (a×b) can be 250KW / m 2 、300KW / m 2 、350KW / m 2 , 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.

[0290] Energy E can be obtained from the nameplate of the energy storage bin.

[0291] 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 and the mass setting of the first bin body 11 are taken into account, which improves the practicality of the energy storage bin and facilitates the transportation of the energy storage bin.

[0292] In some embodiments, 450KW / m 2 ≤E / (a×b)≤600KW / m 2 .

[0293] 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 / m 2 、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.

[0294] As an example, E / (a x b) = 490 KW / m 2 The energy density of the energy storage bin and the mass of the first bin body 11 can be further improved to facilitate transportation of the energy storage bin.

[0295] In some embodiments, referring to FIGS. 3-6, the second energy storage bin 2 includes a second bin body 21, a second control module, and a plurality of energy units 3. The second bin body 21 has a second energy bin 212 and a second control bin 213 inside. The plurality of energy units 3 are contained in the second energy bin 212. The second control module is used at least for electrical control of the plurality of energy units 3 of the second energy storage bin 2, and the second control module is contained in the second control bin 213.

[0296] For example, the second energy bin 212 and the second control bin 213 are arranged along the length direction of the second bin body 21.

[0297] Here, the second control module used at least for electrical control of the plurality of energy units 3 of the second energy storage bin 2 means that the second control module can be used for electrical control of the plurality of energy units 3 of the second energy storage bin 2, and can also be used for electrical control of the plurality of energy units 3 of the first energy storage bin 1 and the second energy storage bin 2.

[0298] In some embodiments, referring to FIG. 5, the second control bin 213 includes a first control sub-bin 2131 and a second control sub-bin 2132 separated from each other, and the second control module includes a first control part and a second control part, the first control part is contained in the first control sub-bin 2131, and the second control part is contained in the second control sub-bin 2132.

[0299] For example, by setting the second control bin 213 of at least part of the second energy storage bin 2 to include the first control sub-bin 2131 and the second control sub-bin 2132 separated from each other, and containing the first control part in the first control sub-bin 2131 and the second control part in the second control sub-bin 2132, it is beneficial to reduce the influence between the first control part and the second control part, thereby improving electrical safety.

[0300] In some embodiments, referring to FIGS. 5 and 12, the first control part includes at least a master control module 131.

[0301] The master control module 131 is used to control the input and output of high-voltage electrical energy of the energy unit 3.

[0302] In this embodiment, by setting the first control sub-bin 2131 and containing at least the master control module 131 in the first control sub-bin 2131, it is beneficial to improve the electrical safety of the input and output of high-voltage electrical energy.

[0303] In some embodiments, referring to FIG. 5 and FIG. 12, the second control part includes at least one of the power distribution module 132 and the fire control module 134.

[0304] In this embodiment, by setting the second control sub-warehouse 2132 and accommodating at least one of the power distribution module 132 and the fire control module 134 in the second control sub-warehouse 2132, the power distribution of the auxiliary source incoming line and the power safety of each electrical device can be used for voltage level or AC / DC conversion.

[0305] Exemplarily, referring to FIG. 5 and FIG. 12, the first control part includes the master control module 131, the second control part includes the power distribution module 132 and the fire control module 134, and the first control module 13 includes the master control module 131 and the general control module 133. The master control module 131 of the first control part and the master control module 131 of the first control module 13 can be connected with the first control module 13 through the power line and the communication line to realize power supply and signal communication.

[0306] In some embodiments, referring to FIG. 5 and FIG. 12, the energy storage device 100 includes a current collection member, the inside of the second warehouse body 21 has a current collection warehouse 214, and the current collection member is accommodated in the current collection warehouse 214. The plurality of energy units 3 are connected to the current collection member.

[0307] Exemplarily, the current collection member can be a current collection copper bar.

[0308] Exemplarily, a plurality of energy units 3 can be connected in series to form a battery cluster, and a plurality of battery clusters are connected to the current collection member.

[0309] In this embodiment, by setting the current collection warehouse 214 in the inside of the second warehouse body 21 for accommodating the high-voltage current collection copper bar, the assembly, maintenance or replacement of the current collection member are facilitated.

[0310] In some embodiments, referring to FIG. 4 to FIG. 6, the second control warehouse 213 and the second energy warehouse 212 are arranged along the length direction of the second warehouse body 21.

[0311] Here, by arranging the second control warehouse 213 at the end of the second warehouse body 21, the space utilization inside the second warehouse body 21 is maximized, and in addition, the second control warehouse 213 and the second energy warehouse 212 can be arranged closer, which is beneficial to improve the structural compactness.

[0312] Of course, the second control warehouse 213 can also be arranged in the middle of the second energy warehouse 212 along the length direction of the second warehouse body 21.

[0313] In some embodiments, referring to FIG. 4 to FIG. 6, the current collection warehouse 214 and the second energy warehouse 212 are arranged along the length direction of the second warehouse body 21.

[0314] Here, by arranging the confluence bin 214 at the end of the second bin body 21, the space utilization inside the second bin body 21 is maximized. In addition, the confluence bin 214 can be arranged closer to the second energy bin 212, which is conducive to improving the structural compactness and connection.

[0315] In some embodiments, referring to FIG. 4 to FIG. 6 , the second control sub-compartment 2132 is located above the confluence compartment 214 , and the second control sub-compartment 2132 and the confluence compartment 214 are arranged along the width direction of the second compartment body 21 with the first control sub-compartment 2131 .

[0316] Here, by locating the second control sub-compartment 2132 above the confluence compartment 214, on the one hand, it is beneficial for the main control module 131 of the first control part and the main control module 131 of the first control module 13 to be connected to the second control part through the power line and the communication line to realize power supply and signal communication. On the other hand, by setting the second control sub-compartment 2132 above the confluence compartment 214, it is further beneficial for the assembly, maintenance or replacement of the confluence parts.

[0317] In some embodiments, referring to FIG. 5 , a second compartment door 211 is provided on the side of the second control compartment 213 and / or the confluence compartment 214 away from the second energy compartment 212 along the length direction of the second compartment body 21 .

[0318] Here, the second compartment door 211 may be an inspection door. By providing the inspection door, it is convenient to inspect the second control compartment 213 and / or the confluence compartment 214 of the energy storage compartment through the inspection door.

[0319] In this embodiment, it is beneficial to reduce the land waste of traditional energy storage bins that must reserve maintenance channels of more than 3m between adjacent energy storage bins. Only normal paint repair channels need to be reserved between the grid energy storage bins, which increases the user's land investment returns and increases the user's energy benefits per unit area.

[0320] The embodiments of the present disclosure provide a kind of energy storage device 100, energy storage device 100 includes first energy storage bin 1, first energy storage bin 1 includes first bin body 11, first thermal management module 12, first control module 13 and multiple energy units 3.The size of first bin body 11 along height direction is less than the size of standard container along height direction, the size of first bin body 11 along its length direction is consistent with the size of standard container length direction, the size of first bin body 11 along its width direction is consistent with the size of standard container width direction.At least part of energy unit 3 is contained in first energy bin 114.First control module 13 is arranged in first bin body 11, and first control module 13 is at least used to carry out electrical control to multiple energy units 3 in first bin body 11.First thermal management module 12 is at least used to manage the temperature of multiple energy units 3 of first bin body 11, and first thermal management module 12 includes fan 123 and condenser 125, fan 123 and condenser 125 are arranged outside first bin body 11, and fan 123 is used to dissipate heat for condenser 125.

[0321] The embodiment of the present disclosure provides a kind of energy storage device 100, energy storage device 100 includes first energy storage bin 1 and second energy storage bin 2, first energy storage bin 1 and second energy storage bin 2 are arranged along the height direction of energy storage device 100, and first energy storage bin 1 is located above second energy storage bin 2, wherein first energy storage bin 1 includes first bin body 11, first thermal management module 12, first control module 13 and multiple energy units 3.The size of first bin body 11 along the height direction is less than the size of standard container along the height direction, the size of first bin body 11 along its length direction is consistent with the size of standard container along the length direction, and the size of first bin body 11 along its width direction is consistent with the size of standard container along the width direction.At least part of energy unit 3 is contained in first energy bin 114.First control module 13 is arranged in first bin body 11, and first control module 13 is at least used to electrically control multiple energy units 3 in first bin body 11.First thermal management module 12 is at least used to manage the temperature of multiple energy units 3 of first bin body 11, and first thermal management module 12 includes fan 123 and condenser 125, fan 123 and condenser 125 are arranged outside first bin body 11, and fan 123 is used to dissipate heat for condenser 125.Second energy storage bin 2 includes second bin body 21, second control module, current collector and multiple energy units 3.The interior of second bin body 21 has second energy bin 212, current collection bin 214 and second control bin 213.Multiple energy units 3 are contained in second energy bin 212.Second control module is at least used to electrically control multiple energy units 3 of second energy storage bin 2, and second control module is contained in second control bin 213, and current collector is contained in current collection bin 214.Second control sub-bin 2132 is located above current collection bin 214, and second control sub-bin 2132 and current collection bin 214 are arranged along the width direction of second bin body 21 with first control sub-bin 2131.The first control module 13 includes master control module 131 and general control module 133, the first control part includes master control module 131, the second control part includes power distribution module 132 and fire control module 134, and the master control module 131 of the first control part and the master control module 131 of the first control module 13 can be connected with general control module 133 through power line and communication line, to realize power supply and signal communication.

[0322] The above is only the preferred embodiment of the present disclosure, and is not used to limit the present disclosure, and the present disclosure can have various changes and changes for those skilled in the art.Any modification, equivalent replacement, improvement, etc., within the spirit and principle of the present disclosure, is included in the protection scope of the present disclosure.

Claims

1. An energy storage device comprising: a first warehouse body, wherein the height of the first warehouse body is smaller than the height of a standard container, the length of the first warehouse body is consistent with the length of the standard container, and the width of the first warehouse body is consistent with the width of the standard container; a plurality of energy units, at least some of which are accommodated in the first compartment; a first control module, the first control module being disposed in the first compartment and being at least used for electrically controlling the plurality of energy units in the first compartment; A first thermal management module, the first thermal management module is at least used to manage the temperature of the multiple energy units in the first warehouse body, the first thermal management module includes a fan and a condenser, the fan and the condenser are arranged outside the first warehouse body, and the fan is used to dissipate heat from the condenser.

2. The energy storage device according to claim 1, wherein: The fan and the condenser are arranged on the top or side of the first compartment.

3. The energy storage device according to claim 1 or 2, wherein: The first thermal management module includes an evaporator, the first thermal management module includes a refrigerant circulation loop, the evaporator and the condenser are both located in the refrigerant circulation loop, and the evaporator is arranged outside the first compartment.

4. The energy storage device according to claim 3, wherein: The evaporator is arranged on the top or side of the first storage body.

5. The energy storage device according to claim 3, wherein: The energy storage device includes a thermal management component, the first thermal management module includes a compressor, a throttling device, and a pumping device, the pumping device, the evaporator, and the thermal management component are sequentially connected to form a cooling circulation loop, and the compressor, the condenser, the throttling device, and the evaporator are sequentially connected to form the refrigerant circulation loop; The refrigerant in the refrigerant circulation loop exchanges heat with the coolant in the cooling circulation loop in the evaporator, and the coolant flowing through the thermal management component exchanges heat with the energy unit.

6. The energy storage device according to any one of claims 1 to 5, wherein: The first compartment has a first energy compartment and a first control compartment inside, the first control module is accommodated in the first control compartment, and at least part of the energy unit is accommodated in the first energy compartment; The first control compartment and the first energy compartment are arranged along the height direction of the first compartment body; and / or, The first control compartment and the first energy compartment are arranged along the length direction of the first compartment body.

7. The energy storage device according to claim 6, wherein: The first compartment has a unit compartment inside, and part of the first thermal management module is accommodated in the unit compartment; The first control compartment and the unit compartment are arranged along the height direction of the first compartment body; and / or, The first control compartment and the unit compartment are arranged along the length direction of the first compartment body; and / or, The first control compartment and the unit compartment are arranged along the width direction of the first compartment body.

8. The energy storage device according to claim 7, wherein: The first bin body includes a partition; The partition is provided between the first energy compartment and the first control compartment, and the first energy compartment and the first control compartment share the partition; and / or, The partition is provided between the first energy compartment and the unit compartment, and the first energy compartment and the unit compartment share the partition; and / or, The partition is arranged between the first control compartment and the unit compartment, and the first control compartment and the unit compartment share the partition.

9. The energy storage device according to claim 8, wherein: The interior of the partition is filled with a heat insulating medium.

10. The energy storage device according to any one of claims 7 to 9, wherein: A first compartment door is provided on a side of the first control compartment and / or the unit compartment along the length direction of the first compartment body away from the first energy compartment.

11. The energy storage device according to any one of claims 1 to 10, wherein: The energy storage device includes an energy storage bin, which includes the first bin body and components arranged on the first bin body. The weight of the energy storage bin is M, which is less than or equal to 45 tons.

12. The energy storage device according to any one of claims 1 to 11, wherein: The height dimension of the first warehouse body is h, 850mm≤h<2896mm.

13. The energy storage device according to claim 12, wherein: 1300mm≤h≤2400mm.

14. The energy storage device according to any one of claims 1 to 12, comprising a second storage body, the second storage body being arranged below the first storage body, and at least part of the energy unit being accommodated in the second storage body.

15. The energy storage device according to claim 14, wherein: The energy storage device includes a second control module, which is at least used to electrically control the multiple energy units in the second compartment, and the second control module is accommodated in the second compartment.

16. The energy storage device according to claim 15, wherein: The interior of the second warehouse body has a second energy warehouse and a second control warehouse. The second energy warehouse and the second control warehouse are arranged along the length direction of the second warehouse body. At least part of the energy unit is accommodated in the second energy warehouse, and the second control module is accommodated in the second control warehouse.

17. The energy storage device according to claim 16, wherein: The second control compartment includes a first control sub-compartment and a second control sub-compartment separated from each other, and the second control module includes a first control part and a second control part, the first control part is accommodated in the first control sub-compartment, and the second control part is accommodated in the second control sub-compartment; The first control part includes at least a main control module, and the second control part includes at least one of a power distribution module and a fire control module.

18. The energy storage device according to claim 17, wherein: The energy storage device includes a confluence piece. The second compartment body has a confluence chamber inside. The confluence piece is accommodated in the confluence chamber. The multiple energy units converge to the confluence piece.

19. The energy storage device according to claim 18, wherein: The second control compartment and the second energy compartment are arranged along the length direction of the second compartment body; and / or, The confluence bin and the second energy bin are arranged along the length direction of the second bin body.

20. The energy storage device according to claim 19, wherein: The second control sub-compartment is located above the confluence compartment, and the second control sub-compartment and the confluence compartment are arranged with the first control sub-compartment along the width direction of the second compartment body.

21. The energy storage device according to claim 19 or 20, wherein: The second control compartment and / or the confluence compartment is provided with a second compartment door on a side away from the second energy compartment along the length direction of the second compartment body.

22. An energy storage system comprising a power conversion device and the energy storage device according to any one of claims 1 to 21, wherein the power conversion device is used to electrically connect a power generation device and the energy storage device.

23. A charging network comprising a charging pile and the energy storage device according to any one of claims 1 to 21 or the energy storage system according to claim 22, wherein the energy storage device is used to provide electrical energy to the charging pile.

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