Energy storage device, energy storage system and charging network

Abstract

The application discloses an energy storage device, an energy storage system and a charging network, and belongs to the technical field of batteries. The energy storage device comprises a cabinet body, a plurality of battery devices, a thermal management module and a fire-fighting container. The cabinet body comprises a first warehouse body and a second warehouse body arranged along a first direction. The first warehouse body comprises a first sub-warehouse and a second sub-warehouse arranged along a height direction. The first sub-warehouse is located above the second sub-warehouse. The first direction intersects the height direction. The plurality of battery devices are accommodated in the second warehouse body. The thermal management module is at least partially accommodated in the first sub-warehouse and is used for managing the temperature of the battery devices. The fire-fighting container is accommodated in the second sub-warehouse and is used for containing a first fire-fighting medium. The cabinet body comprises a first stand and a second stand arranged at intervals along a second direction. In the same projection plane perpendicular to the first direction, the orthographic projection of the fire-fighting container at least partially overlaps the orthographic projection of the first stand. The energy storage device has a high energy density.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to an energy storage device, an energy storage system, and a charging network. Background Technology

[0002] With the rapid development of technology, electricity has become an indispensable energy source in people's production and daily life. To ensure a stable and reliable power supply and guarantee the normal operation of production and daily life, energy storage devices play a crucial role. They can store surplus electricity and release it back into the grid or directly supply power when needed, effectively realizing the recycling of electrical energy. Their applications are wide-ranging, covering industrial power supply, household power supply, emergency power supply, mobile power supply, wind power generation support, solar power generation support, and large-scale energy storage power stations. In the continuous development of energy storage technology, how to improve its energy density is a technical problem that urgently needs to be solved. Utility Model Content

[0003] In view of the above problems, this application provides an energy storage device, an energy storage system, and a charging network, which can improve the reliability of the energy storage device.

[0004] In a first aspect, this application provides an energy storage device, comprising a cabinet, multiple battery devices, a thermal management module, and a fire-fighting container. The cabinet includes a first compartment and a second compartment arranged along a first direction. The first compartment includes a first sub-compartment and a second sub-compartment, arranged along a height direction, with the first sub-compartment located above the second sub-compartment. The first direction intersects the height direction. Multiple battery devices are housed in the second compartment. The thermal management module is at least partially housed in the first sub-compartment and is used to manage the temperature of the battery devices. The fire-fighting container is housed in the second sub-compartment and is used to contain a first fire-fighting medium. The cabinet includes a first column and a second column spaced apart along a second direction, with the first direction, second direction, and height direction being mutually perpendicular. Both the first column and the second column extend along the height direction. In the same projection plane perpendicular to the first direction, the orthographic projection of the fire-fighting container at least partially overlaps with the orthographic projection of the first column.

[0005] In the technical solution of this application embodiment, the thermal management module and the fire-fighting container can share the space inside the cabinet in the height direction. Furthermore, since the orthographic projection of the fire-fighting container at least partially overlaps with the orthographic projection of the first column in the same projection plane perpendicular to the first direction, the fire-fighting container can utilize a portion of the space on one side of the first column in the first direction. This arrangement allows for a more compact arrangement of components inside the energy storage device (such as the thermal management module and the fire-fighting container), fully utilizing the space inside the cabinet to enable the energy storage device to have a higher energy density.

[0006] In one or more embodiments of the first aspect, the second compartment houses multiple battery clusters, each battery cluster comprising multiple battery devices connected in series. The energy storage device further includes a main control module, a bus terminal, and a sub-control module. The main control module is used for electrical control of the battery devices. The sub-control module includes a first control section and a second control section. The first control section is electrically connected to the bus terminal and the battery clusters. The bus terminal is used for electrical connection to the energy storage converter. The second control section is communicatively connected to the main control module and the battery monitoring unit of the battery devices. Both the main control module and the bus terminal are housed in the second sub-compartment. The fire-fighting container, the bus terminal, and the main control module are arranged along a second direction.

[0007] In the above scheme, since the fire-fighting container, the bus terminal and the main control module are arranged along the second direction, the three can share the space of the second sub-compartment in the second direction, which further improves the energy density of the energy storage device.

[0008] In one or more embodiments of the first aspect, the energy storage device further includes a first enclosure and a power distribution module, wherein the first enclosure is disposed in a second sub-compartment, and the main control module and the power distribution module are both housed within the first enclosure.

[0009] In the above scheme, the main control module and the power distribution module are integrated into the first enclosure. This layout improves the integration of components and space utilization efficiency in the second sub-compartment. Furthermore, the low installation height of the main control module and power distribution module facilitates routine inspection and maintenance. Simultaneously, the first enclosure allows for comprehensive maintenance of both the main control module and the power distribution module, thereby enhancing the ease of maintenance of the energy storage device.

[0010] In one or more embodiments of the first aspect, the energy storage device further includes a second housing, which is disposed in a second sub-compartment, and multiple bus terminals are provided, all of which are housed within the second housing.

[0011] In the above solution, multiple busbar terminals are integrated into the first enclosure. This layout improves the integration of components and space utilization efficiency in the second sub-compartment. Furthermore, the low installation height of the busbar terminals facilitates routine inspection and maintenance. Simultaneously, the second enclosure allows for comprehensive maintenance of multiple busbar terminals, thereby enhancing the ease of maintenance for the energy storage device.

[0012] In one or more embodiments of the first aspect, the thermal management module includes a thermal management unit, heat exchange pipelines, and thermal management components. The thermal management unit is disposed in a first sub-compartment, the thermal management components are used to regulate the temperature of the battery cells of the battery device, and the heat exchange pipelines connect the thermal management unit and the thermal management components. Part of the heat exchange pipelines are located in a second sub-compartment, and the fire-fighting container, the bus terminal, the main control module, and the heat exchange pipelines located in the second sub-compartment are arranged along a second direction.

[0013] In the above scheme, since the fire-fighting container, the bus terminal, the main control module and the heat exchange pipeline located in the second sub-compartment are arranged along the second direction, the above four can share the space of the second sub-compartment in the second direction, further improving the energy density of the energy storage device.

[0014] In one or more embodiments of the first aspect, some heat exchange pipes are located within the second compartment, and the heat exchange pipes located within the second sub-compartment and the heat exchange pipes located within the second compartment are both located on the same side of the battery device in the second direction.

[0015] In the above scheme, since both the heat exchange pipes located in the second sub-compartment and the heat exchange pipes located within the second compartment are situated on the same side of the battery device in the second direction, the length of the heat exchange pipes can be relatively shorter. This helps to reduce the overall weight of the energy storage device and increase its energy density. Furthermore, the heat exchange pipes can be installed or maintained on one side of the battery device in the second direction, which improves the assembly efficiency and maintenance convenience of the energy storage device.

[0016] In one or more embodiments of the first aspect, the walls of the second sub-compartment include a first wall and a second wall disposed opposite to each other along a second direction, wherein, in the second direction, the heat exchange pipeline located in the second sub-compartment is closer to the first wall than the fire-fighting container.

[0017] In the above scheme, the heat exchange pipeline located in the second sub-compartment is placed close to the first wall, which can free up more central space for components such as the bus terminal and the main control module. Moreover, when maintaining the heat exchange pipeline, it is not necessary to dismantle the components in the second sub-compartment on a large scale, which makes maintenance more convenient.

[0018] In one or more embodiments of the first aspect, the first wall has an access port, and the energy storage device further includes a cover for closing or opening the access port.

[0019] In the above scheme, the heat exchange pipeline can be inspected and maintained conveniently and quickly by opening the inspection port. At the same time, resealing the inspection port after inspection and maintenance ensures good sealing of the second sub-compartment.

[0020] In one or more embodiments of the first aspect, the covering includes an insulation layer.

[0021] In the above scheme, the insulation layer allows the components in the second sub-compartment to operate at a suitable temperature, thereby enabling the energy storage device to have high reliability.

[0022] In one or more embodiments of the first aspect, the second sub-compartment includes a first compartment door, which is disposed on the side of the second sub-compartment away from the second compartment body along a first direction; the energy storage device further includes a dehumidification module, which is used to manage the humidity of the second compartment body and the humidity of the second sub-compartment, and the dehumidification module is installed on the first compartment door.

[0023] In the above scheme, the first compartment door is used as the installation base for the dehumidification module, which reduces the number of auxiliary structures such as mounting bases or support beams in the second sub-compartment, simplifies the internal structure of the second sub-compartment, makes the component arrangement in the second sub-compartment more compact, and improves the energy density of the energy storage device.

[0024] In one or more embodiments of the first aspect, the second sub-compartment includes a first compartment door, which is disposed on the side of the first sub-compartment opposite to the second compartment body along a first direction. The energy storage device also includes a fire control module, which is communicatively connected to the fire-fighting container and is installed on the first compartment door.

[0025] In the above scheme, the first compartment door is used as the installation base for the fire control module, which reduces the number of auxiliary structures such as mounting seats or support beams in the second sub-compartment, simplifies the internal structure of the second sub-compartment, makes the component arrangement in the second sub-compartment more compact, and improves the energy density of the energy storage device.

[0026] In one or more embodiments of the first aspect, the first fire-fighting medium includes aerosol or perfluoroethyl ketone.

[0027] In the above scheme, by setting the first fire-fighting medium to include aerosol or perfluoroethyl ketone, the fire source can be extinguished quickly, reducing the risk of further combustion of the energy storage device. On the other hand, the risk of short circuits between different battery devices caused by the fire-fighting medium can be reduced, which is conducive to improving the reliability of the energy storage device.

[0028] In one or more embodiments of the first aspect, the energy storage device further includes a second fire-fighting medium inlet and a second fire-fighting medium nozzle. The second fire-fighting medium nozzle is disposed in the second compartment, and the second fire-fighting medium inlet is connected to the second fire-fighting medium nozzle through a fire-fighting pipeline. The second fire-fighting medium inlet is disposed on the outer surface of the cabinet, and part of the fire-fighting pipeline is located in the second sub-compartment. The fire-fighting pipeline and the fire-fighting container located in the second sub-compartment are arranged along the second direction.

[0029] In the above scheme, the second fire-fighting medium can be quickly and conveniently filled through the second fire-fighting medium inlet, thereby rapidly extinguishing the fire source, reducing the risk of fire spread, and further improving the reliability of the energy storage device. The fire-fighting pipelines and fire-fighting containers located in the second sub-compartment can share the space of the second sub-compartment in the second direction, further improving the energy density of the energy storage device.

[0030] In one or more embodiments of the first aspect, the second fire-fighting medium includes water.

[0031] In the above scheme, when water is released into the second compartment through the second fire-fighting medium nozzle, the fire source can be extinguished quickly, which can make the energy storage device highly reliable.

[0032] In one or more embodiments of the first aspect, the energy storage device includes a monitoring unit, a fire detector, and an explosion-proof light. The second sub-compartment has a top wall in the height direction, and the monitoring unit, the fire detector, and the explosion-proof light are all disposed on the top wall. The monitoring unit, the fire detector, and the explosion-proof light are arranged along the second direction.

[0033] In the above scheme, the top wall is used as the installation base for the monitoring unit, fire detector and explosion-proof light, which reduces the number of auxiliary structures such as mounting seats or support beams in the second sub-compartment, simplifies the internal structure of the second sub-compartment, and makes the component arrangement in the second sub-compartment more compact. At the same time, since the monitoring unit, fire detector and explosion-proof light are arranged along the second direction, the above three can share the space of the second sub-compartment in the second direction, thereby further improving the energy density of the energy storage device.

[0034] In one or more embodiments of the first aspect, the wall of the second compartment includes a first wall and a second wall disposed opposite to each other along a second direction, wherein the fire container is closer to the second wall than the first wall in the second direction; the energy storage device also includes an explosion-proof switch for controlling the explosion-proof light to be turned on or off, the explosion-proof switch is disposed on the second wall, the explosion-proof switch and the fire container are arranged along the height direction, and the explosion-proof switch is located above the fire container.

[0035] In the above scheme, using the second wall as the installation base for the explosion-proof switch reduces the number of auxiliary structures such as mounting bases or support beams within the second sub-compartment, simplifying the internal structure of the second sub-compartment and allowing for a more compact arrangement of components. Furthermore, since the explosion-proof switch and the fire-fighting container are arranged along the vertical direction, they can share the vertical space of the second sub-compartment, thereby further increasing the energy density of the energy storage device. In addition, because the explosion-proof switch is located above the fire-fighting container, it facilitates routine inspection and maintenance, giving the energy storage device high maintenance convenience.

[0036] In one or more embodiments of the first aspect, the walls of the second compartment include a first wall and a second wall disposed opposite to each other along a second direction, wherein the fire-fighting container is closer to the second wall than the first wall in the second direction; the energy storage device also includes a socket disposed on the second wall, the socket and the fire-fighting container are arranged along the height direction, and the socket is located above the fire-fighting container.

[0037] In the above scheme, using the second wall as the mounting base for the socket reduces the number of auxiliary structures such as mounting bases or support beams within the second sub-compartment, simplifying the internal structure of the second sub-compartment and allowing for a more compact arrangement of components. Furthermore, since the socket and the fire-fighting container are arranged along the vertical direction, they can share the vertical space of the second sub-compartment, thereby further increasing the energy density of the energy storage device. In addition, the socket's location above the fire-fighting container facilitates access for maintenance personnel, thus enhancing the energy storage device's ease of maintenance.

[0038] Secondly, this application provides an energy storage system, which includes an energy storage converter and an energy storage device as described in one or more embodiments of the first aspect. The energy storage converter is used to electrically connect the power generation device and the energy storage device.

[0039] In the above scheme, since the energy storage device in one or more embodiments of the first aspect has a high energy density, the energy storage system including the energy storage device in one or more embodiments of the first aspect also has a high energy density.

[0040] Thirdly, this application provides a charging network, which includes charging piles and an energy storage device as described in one or more embodiments of the first aspect, the energy storage device being used to provide electrical energy to the charging piles.

[0041] In the above scheme, since the energy storage device in one or more embodiments of the first aspect has a high energy density, the charging network including the energy storage device in one or more embodiments of the first aspect also has a high energy density.

[0042] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0043] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the charging network structure in some embodiments of this application; Figure 2 This is a schematic diagram of the energy storage system in some embodiments of this application; Figure 3 This is a schematic diagram of the structure of the energy storage device in some embodiments of this application; Figure 4 This is an isometric view of an energy storage device according to some embodiments of this application; Figure 5 This is a schematic diagram of a partial structure of an energy storage device according to some embodiments of this application; Figure 6 This is a schematic diagram of a portion of the structure of an energy storage device according to some embodiments of this application; Figure 7This is a schematic diagram of a partial structure of an energy storage device according to some embodiments of this application, showing the positional relationship between the thermal management module and the battery device; Figure 8 This is a schematic diagram of the energy storage device structure according to some embodiments of this application.

[0044] The reference numerals in the detailed embodiments are as follows: 1000 - Charging network; 2000 - Energy storage system; 3000 - Power generation device; 100 - Battery device; 200 - Energy storage device; 300 - Charging pile; 400 - Energy storage converter; 20 - Cabinet; 201 - First compartment; 2011 - First sub-compartment; 2012 - Second sub-compartment; 2012a - First wall; 2012b - Second wall; 2012c - First compartment door; 2012d - Inspection port; 202 - Second compartment; 203-First column; 204-Second column; 205-Crossbeam; 206-Longitudinal beam; 30-Thermal management module; 301-Thermal management unit; 302-Heat exchange pipeline; 303-Thermal management component; 35-Second fire-fighting medium inlet; 36-Fire-fighting pipeline; 37-Monitoring unit; 38-Fire detector; 39-Explosion-proof light; 40-Fire-fighting container; 41-Explosion-proof switch; 42-Socket; 50-First enclosure; 60-Second enclosure; 70-Cover; 80-Dehumidification module; 90-Fire control module; X-First direction; Y-Second direction; Z-Height direction. Detailed Implementation

[0045] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0047] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0048] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0049] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0050] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0051] Battery cells include, but are not limited to, lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, etc.

[0052] A single battery cell typically includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of a single battery cell, active ions (such as lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, reduces the risk of short circuits while allowing active ions to pass through.

[0053] In some embodiments, the separator is a separator membrane. The separator membrane can be any known porous structure separator membrane with good chemical and mechanical stability.

[0054] In some embodiments, the separator is a solid electrolyte. The solid electrolyte is disposed between the positive and negative electrodes, serving both to transport ions and to isolate the positive and negative electrodes.

[0055] In some embodiments, the electrode assembly is a wound structure. The positive electrode and the negative electrode are wound into a wound structure.

[0056] In some implementations, the electrode assembly is a stacked structure.

[0057] In some embodiments, the electrode assembly can be cylindrical, flat, or polygonal, etc.

[0058] As an example, a battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic battery cells, such as hexagonal prismatic battery cells.

[0059] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity.

[0060] The battery apparatus mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via a busbar.

[0061] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells; as an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form a single module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0062] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0063] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0064] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0065] In a typical battery cell structure, a battery cell includes a casing, electrode components, and electrolyte. The casing includes an end cap and a housing; the end cap closes the opening of the housing to define a space for accommodating the electrode components. In some embodiments, the casing can be a steel casing, an aluminum casing, a plastic casing (such as a polypropylene casing), a composite metal casing (such as a copper-aluminum composite casing), or an aluminum-plastic film, etc.

[0066] 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 power stations can store electrical energy during off-peak hours and provide power to relevant users or electrical devices during peak hours. Wind power generation systems collect wind energy from wind turbines, convert it into electricity, and then store it in energy storage devices. Solar power generation systems can convert solar energy into electricity, store it in energy storage devices, and supply it to users as needed. Mobile power systems can supply power to relevant electrical devices in areas inaccessible by the mains power grid, such as remote mountainous areas and isolated wilderness areas. Temporary power supply systems can provide power to users when there is insufficient power supply. The energy storage devices provided in the embodiments of this application can be used in any power system that requires energy storage.

[0067] Energy storage devices typically include a cabinet, which usually contains at least three compartments. These three compartments are used to house the battery unit, thermal management module, and fire-fighting container, respectively. The overall layout of the components inside the energy storage device is relatively loose, which makes it difficult to fully utilize the internal space of the cabinet, resulting in wasted space and a loss of energy density.

[0068] In view of this, this application provides an energy storage device, which includes a cabinet, multiple battery devices, a thermal management module, and a fire-fighting container. The cabinet includes a first compartment and a second compartment arranged along a first direction. The first compartment includes a first sub-compartment and a second sub-compartment, which are arranged along the height direction. The first sub-compartment is located above the second sub-compartment, and the first direction intersects the height direction. Multiple battery devices are housed in the second compartment. The thermal management module is at least partially housed in the first sub-compartment and is used to manage the temperature of the battery devices. The fire-fighting container is housed in the second sub-compartment and is used to contain a first fire-fighting medium. The cabinet includes a first column and a second column spaced apart along a second direction. The first direction, the second direction, and the height direction are mutually perpendicular, and both the first column and the second column extend along the height direction. In the same projection plane perpendicular to the first direction, the orthographic projection of the fire-fighting container at least partially overlaps with the orthographic projection of the first column. The thermal management module and the fire-fighting container can share the internal space of the cabinet in the height direction. Furthermore, since the orthographic projection of the fire-fighting container and the orthographic projection of the first column at least partially overlap within the same projection plane perpendicular to the first direction, the fire-fighting container can utilize part of the space on one side of the first column in the first direction. This arrangement allows for a more compact arrangement of components inside the energy storage device (such as the thermal management module and the fire-fighting container), making full use of the space inside the cabinet to enable the energy storage device to have a higher energy density.

[0069] Please refer to Figure 1 and Figure 3 , Figure 1 This is a schematic diagram of the structure of a charging network 1000 provided in some embodiments of this application. Figure 3This is a schematic diagram of the structure of an energy storage device 200 provided in some embodiments of this application. Embodiments of this application provide a charging network 1000, which includes a charging pile 300 for charging electrical equipment. The charging network 1000 may also include an energy storage device 200, which is electrically connected to the charging pile 300 and provides power to the charging pile 300.

[0070] It should be noted that the charging pile 300 and the battery cells in the energy storage device 200 are electrically connected via cables, and the battery cells can supply their stored electrical energy to the charging pile 300. The charging pile 300 has a connector that can be connected to electrical equipment, thereby replenishing the equipment's power. The application of the energy storage device 200 in this charging network 1000 can effectively improve the safety of the charging network 1000 and also help to enhance the flexibility of the charging network 1000 during deployment.

[0071] In a charging network 1000, there can be one charging pile 300, and the energy storage device 200 provides power to the one charging pile 300; there can also be multiple charging piles 300, and the energy storage device 200 provides power to multiple charging piles 300.

[0072] As an example, such as Figure 1 As shown, the charging network 1000 includes an energy storage device 200 and two charging piles 300, with the energy storage device 200 providing power to the two charging piles 300.

[0073] The energy storage device 200 may include a battery device 100, which is electrically connected to the charging pile 300 so that the battery device 100 can provide power to the charging pile 300.

[0074] Please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of an energy storage system 2000 provided in some embodiments of this application. Embodiments of this application provide an energy storage system 2000. The energy storage system 2000 includes an energy storage converter 400, which is electrically connected to a generator 3000 to convert the electrical power provided by the generator 3000. The energy storage system 2000 may also include an energy storage device 200, which is electrically connected to the energy storage converter 400. The energy storage converter 400 converts the electrical energy provided by the generator 3000 and stores it in the energy storage device 200.

[0075] A power conversion device is used to connect the power generation device 3000 and the energy storage device 200. The power generation device 3000 generates electrical energy and stores it in the energy storage device 200 via the power conversion device. The use of the energy storage device 200 in the energy storage system 2000 effectively improves its operational safety. In specific implementations, the power generation equipment can be solar panels, hydroelectric power generation equipment, thermal power generation equipment, etc. This application does not limit the specific type of power generation equipment.

[0076] As an example, such as Figure 2 As shown, the energy storage system 2000 includes an energy storage device 200 and an energy storage converter 400. The two power generation devices 3000 respectively transmit the generated electrical energy to the energy storage converter 400, and the energy storage converter 400 introduces the electrical energy into the energy storage device 200 for storage.

[0077] Please refer to Figure 3 The energy storage device 200 includes a cabinet 20, and a battery device 100 is installed inside the cabinet 20.

[0078] As an example, the energy storage device 200 can be an energy storage container, an energy storage cabinet, etc.

[0079] As an example, energy storage device 200 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 power stations can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. Wind power generation systems collect wind energy from wind turbines, convert it into electrical energy, and store it in energy storage device 200. Solar power generation systems can convert solar energy into electrical energy, store it in energy storage device 200, and supply it to users as needed. Mobile power systems can supply power to relevant electrical equipment in areas where the mains power supply cannot reach, such as remote mountainous areas and remote wilderness areas. Temporary power supply systems can provide power to users when there is insufficient power supply.

[0080] According to some embodiments of this application, please refer to Figures 4-6This application provides an energy storage device 200 including a cabinet 20, multiple battery devices 100, a thermal management module 30, and a fire-fighting container 40. The cabinet 20 includes a first compartment 201 and a second compartment 202 arranged along a first direction X. The first compartment 201 includes a first sub-compartment 2011 and a second sub-compartment 2012, which are arranged along a height direction Z. The first sub-compartment 2011 is located above the second sub-compartment 2012, and the first direction X intersects the height direction Z. The multiple battery devices 100 are housed in the second compartment 202. The thermal management module 30 is at least partially housed in the first sub-compartment 2011 and is used to manage the temperature of the battery devices 100. The fire-fighting container 40 is housed in the second sub-compartment 2012 and is used to contain a first fire-fighting medium. The cabinet 20 includes a first column 203 and a second column 204 spaced apart along the second direction Y. The first direction X, the second direction Y, and the height direction Z are all perpendicular to each other, and both the first column 203 and the second column 204 extend along the height direction Z. In the same projection plane perpendicular to the first direction X, the orthographic projection of the fire-fighting container 40 at least partially overlaps with the orthographic projection of the first column 203.

[0081] It should be noted that, Figure 4 The dashed lines in the diagram are only to show the positional relationship of the second compartment 202 and do not limit its size.

[0082] In some embodiments, the container 20 can be a standard shipping container, which can be of standard dimensions for transport, such as 20 feet, 30 feet, 40 feet, or 45 feet, meeting the corresponding standards, with corresponding length, width, and height dimensions. Standard containers can be referenced in GB / T1413-2023 Series 1, Container Classification, Dimensions, and Rated Mass. Of course, the container 20 can also be a non-standard container, meaning that the dimensions of the container 20 in one of the length, width, or height directions (Z) do not match the dimensions of a standard shipping container.

[0083] A 20-foot container can include: a length dimension of 6058mm with a tolerance of 0mm-6mm; a width dimension of 2438mm with a tolerance of 0mm-5mm; and a height dimension (Z) of 2896mm, 2591mm, or no greater than 2438mm with a tolerance of 0mm-5mm. Note that dimensions smaller than the standard container's height dimension (Z) can be understood as being less than 2896mm.

[0084] A 30-foot container can include: a length dimension of 9125mm with a tolerance of 0mm-10mm; a width dimension of 2438mm with a tolerance of 0mm-5mm; and a gravity dimension of 2896mm, 2591mm, or no greater than 2438mm with a tolerance of 0mm-5mm. The gravity dimension of a container smaller than that of a standard container can be understood as being less than 2896mm.

[0085] A 40-foot container can include: a length dimension of 12192mm with a tolerance of 0mm-10mm; a width dimension of 2438mm with a tolerance of 0mm-5mm; and a gravity dimension of 2896mm, 2591mm, or no greater than 2438mm with a tolerance of 0mm-5mm. The gravity dimension of a container smaller than that of a standard container can be understood as being less than 2896mm.

[0086] A 45-foot container can include: a length dimension of 13716 mm with a tolerance of 0 mm to 10 mm; a width dimension of 2438 mm with a tolerance of 0 mm to 5 mm; and a gravity dimension of 2591 mm or 2896 mm with a tolerance of 0 mm to 5 mm. The gravity dimension being smaller than that of a standard container can be understood as being smaller than 2896 mm.

[0087] Alternatively, for containers of various sizes, dimensions within ±5% of their dimensions can be considered as dimensions within the tolerance range.

[0088] The first direction X can be either the length direction of the cabinet 20 or the width direction of the cabinet 20.

[0089] In some embodiments, the height direction Z is approximately parallel to the direction of gravity.

[0090] In some embodiments, the thermal management module 30 can manage the temperature of all battery devices 100 within the second compartment 202. The thermal management module 30 may include multiple thermal management units, all housed within the first sub-compartment 2011, which collectively manage the temperature of all battery devices 100 within the second compartment 202. In some embodiments, the thermal management module 30 may include a thermal management unit 301, heat exchange piping 302, and a thermal management component 303. For example, the thermal management unit 301 may be a liquid cooling unit, including a pumping device, a heat exchanger, and multiple thermal management units connected via the heat exchange piping 302. The liquid cooling unit delivers a heat exchange medium to the thermal management component 303 through the piping to manage the temperature of the individual battery cells within the battery devices 100. The thermal management module 30 may also include a fan, allowing heat exchange between the heat exchanger and the external space of the compartment 20. The thermal management component 303 may be housed within the casing of the battery devices 100. The thermal management component 303 can support the battery cell, or it can be arranged with the battery cell in a direction perpendicular to the height direction Z. Alternatively, the thermal management component 303 can also form a housing space for the battery cell together with the casing of the battery assembly 100. Optionally, the first sub-compartment 2011 can be equipped with an air inlet and an air outlet.

[0091] In some embodiments, the first sub-compartment 2011 and the second compartment 202 may be separated by a separator. In some embodiments, the first sub-compartment 2011 and the second sub-compartment 2012 may be separated by a separator. In some embodiments, the second sub-compartment 2012 and the second compartment 202 may be separated by a separator. The separator may be a plate to prevent the two compartments from communicating with each other.

[0092] In some embodiments, the second sub-compartment 2012 is connected to the second compartment 202. For example, the second sub-compartment 2012 and the second compartment 202 can be separated by a mesh-like structural component, such as a mesh panel or intersecting beams. Alternatively, no component may be provided between the second sub-compartment 2012 and the second compartment 202.

[0093] For example, the fire-fighting container 40 can be a box, tank, or other container. It can be an atmospheric pressure container or a pressure vessel.

[0094] In some embodiments, the first fire-fighting medium can be either a gaseous fire-fighting medium or a solid fire-fighting medium, and the physical state of the first fire-fighting medium refers to its physical state at the time of release. For example, the first fire-fighting medium being a gaseous fire-fighting medium means that the first fire-fighting medium is in a gaseous state when it is released into the second compartment 202.

[0095] The first sub-compartment 2011 and the second sub-compartment 2012 are arranged along the height direction Z, with the first sub-compartment 2011 located above the second sub-compartment 2012. The first direction X intersects the height direction Z. The thermal management module 30 is at least partially housed in the first sub-compartment 2011, and the fire-fighting container 40 is housed in the second sub-compartment 2012. This means that the thermal management module 30 and the fire-fighting container 40 share the space inside the cabinet 20 along the height direction Z. This arrangement allows the second compartment 202 to occupy as much of the internal space of the cabinet 20 as possible, that is, the cabinet 20 can accommodate as many battery devices 100 as possible, which is beneficial to improving the energy density of the energy storage device 200.

[0096] In some embodiments, the cabinet 20 includes two first uprights 203 spaced apart along a first direction X, two second uprights 204 spaced apart along the first direction X, two sets of crossbeams 205 spaced apart along a height direction Z, and two sets of longitudinal beams 206 spaced apart along a height direction Z. The first uprights 203, second uprights 204, crossbeams 205, and longitudinal beams 206 together define the outer envelope contour of the cabinet 20. For example, please refer to... Figure 4 , Figure 4 The cabinet includes two first columns 203, two second columns 204, two sets of crossbeams 205, and two sets of longitudinal beams 206. Each set of crossbeams 205 includes two crossbeams 205 spaced apart along the second direction Y. Each set of longitudinal beams 206 includes longitudinal beams 206 spaced apart along the first direction X. The first columns 203, second columns 204, crossbeams 205, and longitudinal beams 206 together form the cuboid frame of the cabinet 20.

[0097] Please refer to Figure 5 and Figure 6 In the same projection plane perpendicular to the first direction X, the orthographic projection of the fire-fighting container 40 and the orthographic projection of the first column 203 overlap at least partially, which means that the space of the first column 203 facing the interior of the second sub-compartment 2012 in the first direction X is utilized by the fire-fighting container 40.

[0098] In the technical solution of this application embodiment, the thermal management module 30 and the fire-fighting container 40 can share the space inside the cabinet 20 in the height direction Z. Furthermore, since the orthographic projection of the fire-fighting container 40 at least partially overlaps with the orthographic projection of the first column 203 in the same projection plane perpendicular to the first direction X, the fire-fighting container 40 can utilize a portion of the space on one side of the first column 203 in the first direction X. This arrangement allows for a more compact arrangement of components inside the energy storage device 200 (e.g., the thermal management module 30 and the fire-fighting container 40), fully utilizing the space inside the cabinet 20 to enable the energy storage device 200 to possess a higher energy density.

[0099] According to some embodiments of this application, please refer to Figures 4-6The second compartment 202 houses multiple battery clusters, each battery cluster including multiple battery devices 100 connected in series. The energy storage device 200 also includes a main control module, a bus terminal, and a sub-control module. The main control module is used for electrical control of the battery devices 100. The sub-control module includes a first control section and a second control section. The first control section is electrically connected to the bus terminal and the battery clusters, and the bus terminal is used for electrical connection to the energy storage converter 400. The second control section is communicatively connected to the main control module and the battery monitoring unit 37 of the battery devices 100. Both the main control module and the bus terminal are housed in the second sub-compartment 2012. The fire-fighting container 40, the bus terminal, and the main control module are arranged along the second direction Y.

[0100] In some embodiments, the energy storage system 2000 includes a battery monitoring circuit for collecting first data from the battery device 100, and a main control module for determining the operating status data of the energy storage device 200, which is associated with the first data. The main control module can be a module in the energy storage device 200 used to monitor and manage the battery device 100, and can serve as a management unit for the battery device 100 in the energy storage system 2000. The main control module can be communicatively connected to the battery monitoring circuit, and can receive and process information from the battery monitoring circuit to determine the operating status data of the energy storage device 200 using the information. The main control module can monitor information such as current, voltage, power, state of charge, or temperature of the individual battery cells of the battery device 100 to determine the operating status data of the energy storage device 200. As an example, the main control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module. In some embodiments, the Insulation Monitoring Module (IMM), the Main Battery Management Unit (MBMU), the Ethernet ETH, and the Fiber Optic Conversion Module are all control units.

[0101] In some embodiments, the battery cluster can be electrically connected to the first control section first, and then the power of the energy storage device 200 can be output through the bus terminal. The first control section is used to form an electrical connection between the battery cluster, the bus terminal and the energy storage converter 400 so that the power of the battery device 100 can be output through the bus terminal or the power can be input into the battery device 100.

[0102] In some embodiments, the second control section is used to exchange data with the main control module and receive instructions from the main control module, thereby enabling the main control module to monitor and control the battery device 100.

[0103] In some embodiments, the sub-control module may be referred to as a slave battery management unit.

[0104] In the above scheme, since the fire-fighting container 40, the bus terminal and the main control module are arranged along the second direction Y, the above three can share the space of the second sub-compartment 2012 in the second direction Y, further improving the energy density of the energy storage device 200.

[0105] According to some embodiments of this application, please refer to Figures 4-6 The energy storage device 200 also includes a first housing 50 and a power distribution module. The first housing 50 is located in the second sub-compartment 2012, and the main control module and the power distribution module are both housed in the first housing 50.

[0106] The power distribution module can be understood as the hub of the energy storage device 200. It can distribute the electrical energy input from the outside or output from the battery device 100 to the various electrical components within the energy storage device 200 and perform the necessary AC / DC conversion. It can also protect the internal circuits of the energy storage device 200, for example, by preventing circuit overload, short circuit, and leakage.

[0107] In some embodiments, the first housing 50 may include a door.

[0108] In some embodiments, the first enclosure 50 may include a first sub-enclosure and a second sub-enclosure, which are interlocked to form a housing space for the main control module and the power distribution module. The first sub-enclosure and the second sub-enclosure may be detachably connected.

[0109] In the above scheme, the main control module and the power distribution module are integrated together in the first enclosure 50. This layout improves the integration of components and space utilization efficiency in the second sub-compartment 2012. Furthermore, the low installation height of the main control module and the power distribution module facilitates daily inspection and maintenance. Simultaneously, the first enclosure 50 allows for comprehensive maintenance of both the main control module and the power distribution module, thereby enhancing the maintenance convenience of the energy storage device 200.

[0110] According to some embodiments of this application, please refer to Figures 4-6 The energy storage device 200 also includes a second housing 60, which is located in the second sub-compartment 2012. Multiple bus terminals are provided, and all multiple bus terminals are housed within the second housing 60.

[0111] In some embodiments, the second housing 60 may include a door.

[0112] In some embodiments, the second enclosure 60 may include a third sub-enclosure and a fourth sub-enclosure, which are interlocked to form a housing space for the main control module and the power distribution module. The third sub-enclosure and the fourth sub-enclosure may be detachably connected.

[0113] In the above solution, multiple bus terminals are integrated into the first enclosure 50. This layout improves the integration of components and space utilization efficiency within the second sub-compartment 2012. Furthermore, the low installation height of the bus terminals facilitates routine inspection and maintenance. Simultaneously, the second enclosure 60 allows for comprehensive maintenance of multiple bus terminals, thereby enhancing the maintenance convenience of the energy storage device 200.

[0114] According to some embodiments of this application, please refer to Figures 4-7 The thermal management module 30 includes a thermal management unit 301, a heat exchange pipeline 302, and a thermal management component 303. The thermal management unit 301 is located in the first sub-compartment 2011. The thermal management component 303 is used to regulate the temperature of the individual battery cells of the battery device 100. The heat exchange pipeline 302 connects the thermal management unit 301 and the thermal management component 303. Some of the heat exchange pipelines 302 are located in the second sub-compartment 2012, and the fire-fighting container 40, the bus terminal, the main control module, and the heat exchange pipelines 302 located in the second sub-compartment 2012 are arranged along the second direction Y.

[0115] In some embodiments, the thermal management component 303 may be a liquid cooling plate.

[0116] In some embodiments, please refer to Figure 4 and Figure 7 The heat exchange pipeline 302 can be extended from the heat management unit 301 through the second sub-compartment 2012 into the second compartment 202 and connected to the heat management component 303.

[0117] In the above scheme, since the fire-fighting container 40, the bus terminal, the main control module and the heat exchange pipeline 302 located in the second sub-compartment 2012 are arranged along the second direction Y, the above four can share the space of the second sub-compartment 2012 in the second direction Y, further improving the energy density of the energy storage device 200.

[0118] According to some embodiments of this application, please refer to Figures 4-7 Some of the heat exchange pipes 302 are located inside the second compartment 202, and the heat exchange pipes 302 located in the second sub-compartment 2012 and the heat exchange pipes 302 located in the second compartment 202 are both located on the same side of the battery device 100 in the second direction Y.

[0119] In some embodiments, the wall of the second compartment 202 is provided with a second compartment door. Both the heat exchange pipes 302 located in the second sub-compartment 2012 and the heat exchange pipes 302 located in the second compartment 202 are situated on the side of the second compartment 202 where the second compartment door is located. This arrangement allows for the assembly and maintenance of the heat exchange pipes 302 simply by opening the second compartment door. In some embodiments, the wall of the second compartment 202 is also provided with a third compartment door. The third compartment door is positioned opposite the second compartment door along a second direction Y. Along the second direction Y, the battery device 100 is located between the second compartment door and the third compartment door. The assembly and maintenance of the battery device 100 can be achieved by opening the third compartment door.

[0120] In the above scheme, since the heat exchange pipes 302 located in the second sub-compartment 2012 and the heat exchange pipes 302 located in the second compartment 202 are both located on the same side of the battery device 100 in the second direction Y, the length of the heat exchange pipes 302 can be relatively shorter, which helps to reduce the overall weight of the energy storage device 200 and increase the energy density of the energy storage device 200. At the same time, the heat exchange pipes 302 can be installed or maintained on one side of the battery device 100 in the second direction Y, which helps to improve the assembly efficiency and maintenance convenience of the energy storage device 200.

[0121] According to some embodiments of this application, please refer to Figures 4-6 The walls of the second sub-compartment 2012 include a first wall 2012a and a second wall 2012b arranged opposite each other along the second direction Y. In the second direction Y, the heat exchange pipe 302 located in the second sub-compartment 2012 is closer to the first wall 2012a than the fire-fighting container 40.

[0122] In the above scheme, the heat exchange pipeline 302 located in the second sub-compartment 2012 is positioned close to the first wall 2012a, which frees up more central space for components such as the bus terminal and the main control module. Furthermore, when maintaining the heat exchange pipeline 302 located in the second sub-compartment 2012, it is not necessary to dismantle the components in the second sub-compartment 2012 on a large scale, thus providing greater convenience for maintenance.

[0123] According to some embodiments of this application, please refer to Figures 4-6 The first wall 2012a has an access port 2012d, and the energy storage device 200 also includes a cover 70 for closing or opening the access port 2012d.

[0124] In some embodiments, the cover 70 can be detachably connected to the first wall 2012a via fasteners. Please refer to... Figure 4 , Figure 4 This shows the state of cabinet 20 when cover 70 is removed. Please refer to... Figure 6 , Figure 6 The condition of the cover 70 closing the access port 2012d is shown.

[0125] In some embodiments, the cover 70 may be an access door disposed on the first wall 2012a, which opens the access port 2012d when the access door is opened and closes the access port 2012d when the access door is closed.

[0126] In the above scheme, the heat exchange pipeline 302 can be inspected and maintained by opening the inspection port 2012d, which is convenient and quick. At the same time, the second sub-compartment 2012 can be well sealed by resealing the inspection port 2012d after inspection and maintenance.

[0127] According to some embodiments of this application, please refer to Figures 4-6 The covering 70 includes an insulation layer.

[0128] The cover 70 includes an insulation layer, which means that when the cover 70 closes the access port 2012d, the temperature inside the second sub-compartment 2012 is less affected by the ambient temperature outside the cabinet 20.

[0129] The insulation layer may include, but is not limited to, one of glass wool, rock wool, polyurethane foam board, phenolic foam board, ceramic fiber board, vacuum insulation board, and aerogel components.

[0130] In the above scheme, the insulation layer allows the components in the second sub-compartment 2012 to operate at a suitable temperature, thereby enabling the energy storage device 200 to have high reliability.

[0131] According to some embodiments of this application, please refer to Figure 4 and Figure 8 The second sub-compartment 2012 includes a first compartment door 2012c, which is located on the side of the second sub-compartment 2012 away from the second compartment body 202 along the first direction X. The energy storage device 200 also includes a dehumidification module 80, which is used to manage the humidity of the second compartment body 202 and the humidity of the second sub-compartment 2012. The dehumidification module 80 is installed on the first compartment door 2012c.

[0132] In some embodiments, the dehumidification module 80 may include a dehumidifying air conditioner, a dehumidifier, etc.

[0133] In some embodiments, the first compartment door 2012c is provided with an installation port, and the dehumidification module 80 is installed in the installation port. A part of the dehumidification module 80 is located outside the cabinet 20, and another part of the dehumidification module 80 is located inside the second sub-compartment 2012. This arrangement can save space occupied by the dehumidification module 80 in the second sub-compartment 2012.

[0134] In the above scheme, the first compartment door 2012c is used as the installation base for the dehumidification module 80, which reduces the number of auxiliary structures such as mounting seats or support beams in the second sub-compartment 2012, simplifies the internal structure of the second sub-compartment 2012, makes the component arrangement in the second sub-compartment 2012 more compact, and improves the energy density of the energy storage device 200.

[0135] According to some embodiments of this application, please refer to Figure 4 The second sub-compartment 2012 includes a first compartment door 2012c, which is located on the side of the first sub-compartment 2011 facing away from the second compartment body 202 along the first direction X. The energy storage device 200 also includes a fire control module 90, which is communicatively connected to the fire container 40 and is installed on the first compartment door 2012c.

[0136] In some embodiments, the fire control module 90 is located within the first sub-compartment 2011.

[0137] The fire control module 90 is a component that provides communication connections to the fire container 40 and other related fire protection design structures. For example, the fire control module 90 can output commands to release the fire-fighting medium in the fire container 40 into the second compartment 202 and / or the second sub-compartment 2012 to extinguish the fire.

[0138] In the above scheme, the first compartment door 2012c is used as the installation base for the fire control module 90, which reduces the number of auxiliary structures such as mounting seats or support beams in the second sub-compartment 2012, simplifies the internal structure of the second sub-compartment 2012, makes the component arrangement in the second sub-compartment 2012 more compact, and improves the energy density of the energy storage device 200.

[0139] According to some embodiments of this application, the first fire-fighting medium includes aerosol or perfluoroacetone.

[0140] In the above scheme, by setting the first fire-fighting medium to include aerosol or perfluoroethyl ketone, on the one hand, the fire source can be extinguished quickly, reducing the risk of further combustion of the energy storage device 200; on the other hand, the risk of short circuit between different battery devices 100 caused by the fire-fighting medium can be reduced, which is conducive to improving the reliability of the energy storage device 200.

[0141] According to some embodiments of this application, please refer to Figure 4 and Figure 6The energy storage device 200 also includes a second fire-fighting medium inlet 35 and a second fire-fighting medium nozzle. The second fire-fighting medium nozzle is located inside the second compartment 202. The second fire-fighting medium inlet 35 is connected to the second fire-fighting medium nozzle through a fire-fighting pipe 36. The second fire-fighting medium inlet 35 is located on the outer surface of the cabinet 20. Part of the fire-fighting pipe 36 is located in the second sub-compartment 2012, and the fire-fighting pipe 36 located in the second sub-compartment 2012 and the fire-fighting container 40 are arranged along the second direction Y.

[0142] One or more second fire-fighting medium sprinklers may be provided. In some embodiments, each battery cluster corresponds to one second fire-fighting medium sprinkler. In some embodiments, multiple battery devices 100 are arranged in multiple rows, with the multiple rows of battery devices 100 spaced apart along a first direction X, and multiple battery devices 100 in each row of battery devices 100 arranged along a height direction Z, with each row of battery devices 100 corresponding to one second fire-fighting medium sprinkler. In some embodiments, each battery device 100 corresponds to one second fire-fighting medium sprinkler.

[0143] The second fire-fighting medium inlet 35 is used to connect to an external medium source. Taking water as an example, the second fire-fighting medium inlet 35 can be used to connect to fire trucks, fire hydrants, etc.

[0144] In the above scheme, the second fire-fighting medium can be quickly and conveniently filled through the second fire-fighting medium inlet 35, thereby rapidly extinguishing the fire source, reducing the risk of fire spread, and further improving the reliability of the energy storage device 200. The fire-fighting pipeline 36 and the fire-fighting container 40 located in the second sub-compartment 2012 can share the space of the second sub-compartment 2012 in the second direction Y, further improving the energy density of the energy storage device 200.

[0145] In some embodiments, the second fire-fighting medium may include water, foam, dry powder, carbon dioxide, clean gas, wet chemical extinguishing agent, aerosol, sand, etc.

[0146] According to some embodiments of this application, please refer to Figure 4 and Figure 6 The second fire-fighting medium includes water.

[0147] In the above scheme, when water is released into the second compartment 202 through the second fire-fighting medium nozzle, the source of the fire can be quickly extinguished, which can make the energy storage device 200 have high reliability.

[0148] According to some embodiments of this application, please refer to Figures 4-6 The energy storage device 200 includes a monitoring unit 37, a fire detector 38, and an explosion-proof light 39. The second sub-compartment 2012 has a top wall in the height direction Z. The monitoring unit 37, the fire detector 38, and the explosion-proof light 39 are all installed on the top wall. The monitoring unit 37, the fire detector 38, and the explosion-proof light 39 are arranged along the second direction Y.

[0149] The monitoring unit 37 can be used to monitor the operating status of components in the second sub-compartment 2012. For example, the monitoring unit 37 may include, but is not limited to, a camera.

[0150] The fire detector 38 may include, but is not limited to, temperature sensors, smoke sensors, and combustible gas sensors.

[0151] The explosion-proof light 39 is used for lighting. On the one hand, the installation of the explosion-proof light 39 reduces the possibility of it itself becoming an explosion source. On the other hand, it can provide lighting for maintenance personnel when maintaining the components in the second sub-compartment 2012, thereby improving the convenience of maintenance.

[0152] In some embodiments, the explosion-proof light 39 is positioned above the power distribution module in the height direction Z. This arrangement can improve the convenience of maintenance when maintaining the power distribution module, which has a relatively high maintenance frequency.

[0153] In the above scheme, the top wall is used as the installation base for the monitoring unit 37, the fire detector 38 and the explosion-proof light 39, which reduces the number of auxiliary structures such as mounting seats or support beams in the second sub-compartment 2012, simplifies the internal structure of the second sub-compartment 2012, and makes the component arrangement in the second sub-compartment 2012 more compact. At the same time, since the monitoring unit 37, the fire detector 38 and the explosion-proof light 39 are arranged along the second direction Y, the above three can share the space of the second sub-compartment 2012 in the second direction Y, thereby further improving the energy density of the energy storage device 200.

[0154] According to some embodiments of this application, please refer to Figures 4-6 The second compartment 202 includes a first wall 2012a and a second wall 2012b arranged opposite each other along the second direction Y. In the second direction Y, the fire container 40 is closer to the second wall 2012b than the first wall 2012a. The energy storage device 200 also includes an explosion-proof switch 41, which is used to control the explosion-proof lamp 39 to be turned on or off. The explosion-proof switch 41 is arranged on the second wall 2012b and the fire container 40 is arranged along the height direction Z. The explosion-proof switch 41 is located above the fire container 40.

[0155] The explosion-proof switch 41 reduces the possibility of itself becoming an explosion source. On the other hand, it can be used to turn on the explosion-proof light 39 when maintenance personnel are maintaining the components in the second sub-compartment 2012, and can be used to turn off the explosion-proof light 39 after maintenance is completed. This improves the convenience of maintenance personnel and saves energy.

[0156] In the above scheme, using the second wall 2012b as the installation base for the explosion-proof switch 41 reduces the number of auxiliary structures such as mounting seats or support beams within the second sub-compartment 2012, simplifying the internal structure of the second sub-compartment 2012 and making the component arrangement within the second sub-compartment 2012 more compact. Simultaneously, since the explosion-proof switch 41 and the fire-fighting container 40 are arranged along the height direction Z, they can share the space of the second sub-compartment 2012 in the height direction Z, thereby further improving the energy density of the energy storage device 200. Furthermore, since the explosion-proof switch 41 is located above the fire-fighting container 40, it facilitates its daily inspection and maintenance, giving the energy storage device 200 high maintenance convenience.

[0157] According to some embodiments of this application, please refer to Figures 4-6 The second compartment 202 has a first wall 2012a and a second wall 2012b that are arranged opposite each other along the second direction Y. In the second direction Y, the fire container 40 is closer to the second wall 2012b than the first wall 2012a. The energy storage device 200 also includes a socket 42, which is disposed on the second wall 2012b. The socket 42 and the fire container 40 are arranged along the height direction Z, and the socket 42 is located above the fire container 40.

[0158] The placement of socket 42 allows maintenance personnel to easily connect external electronic devices, such as laptops, facilitating maintenance of components within the second sub-compartment 2012.

[0159] In the above scheme, using the second wall 2012b as the mounting base for the socket 42 reduces the number of auxiliary structures such as mounting bases or support beams within the second sub-compartment 2012, simplifying the internal structure of the second sub-compartment 2012 and making the component arrangement within the second sub-compartment 2012 more compact. Simultaneously, since the socket 42 and the fire-fighting container 40 are arranged along the height direction Z, they can share the space of the second sub-compartment 2012 in the height direction Z, thereby further improving the energy density of the energy storage device 200. Furthermore, since the socket 42 is located above the fire-fighting container 40, it is convenient for maintenance personnel to use, thus enabling the energy storage device 200 to have high maintenance convenience.

[0160] According to some embodiments of this application, please refer to Figure 2 This application provides an energy storage system 2000, which includes an energy storage converter 400 and an energy storage device 200 in one or more embodiments of the first aspect. The energy storage converter 400 is used to electrically connect the power generation device 3000 and the energy storage device 200.

[0161] In the above scheme, since the energy storage device 200 in one or more embodiments of the first aspect has a high energy density, the energy storage system 2000 including the energy storage device 200 in one or more embodiments of the first aspect also has a high energy density.

[0162] According to some embodiments of this application, please refer to Figure 1 This application provides a charging network 1000, which includes a charging pile 300 and an energy storage device 200 in one or more embodiments of the first aspect, the energy storage device 200 being used to provide electrical energy to the charging pile 300.

[0163] In the above scheme, since the energy storage device 200 in one or more embodiments of the first aspect has a high energy density, the charging network 1000 including the energy storage device 200 in one or more embodiments of the first aspect also has a high energy density.

[0164] According to some embodiments of this application, please refer to Figures 4-8 This application provides an energy storage device 200, which includes a cabinet 20, multiple battery devices 100, a thermal management module 30, a fire-fighting container 40, a first enclosure 50, a power distribution module, a second fire-fighting medium inlet 35, a second fire-fighting medium nozzle, a monitoring unit 37, a fire detector 38, an explosion-proof light 39, an explosion-proof switch 41, a socket 42, a second enclosure 60, multiple bus terminals, a dehumidification module 80, and a fire control module 90.

[0165] The cabinet 20 includes a first compartment 201 and a second compartment 202 arranged along the first direction X. The first compartment 201 includes a first sub-compartment 2011 and a second sub-compartment 2012. The first sub-compartment 2011 and the second sub-compartment 2012 are arranged along the height direction Z. The first sub-compartment 2011 is located above the second sub-compartment 2012. The first direction X intersects with the height direction Z.

[0166] Multiple battery devices 100 are housed in the second compartment 202. A fire-fighting container 40 is housed in the second sub-compartment 2012, and the fire-fighting container 40 is used to contain the first fire-fighting medium. The cabinet 20 includes a first column 203 and a second column 204 spaced apart along a second direction Y. The first direction X, the second direction Y, and the height direction Z are mutually perpendicular, and both the first column 203 and the second column 204 extend along the height direction Z. In the same projection plane perpendicular to the first direction X, the orthographic projection of the fire-fighting container 40 at least partially overlaps with the orthographic projection of the first column 203.

[0167] The thermal management module 30 is used to manage the temperature of the battery device 100. The thermal management module 30 includes a thermal management unit 301, a heat exchange pipeline 302, and a thermal management component 303. The thermal management unit 301 is located in the first sub-compartment 2011, and the thermal management component 303 is located in the second compartment 202. The thermal management component 303 is used to regulate the temperature of the individual battery cells of the battery device 100. The heat exchange pipeline 302 connects the thermal management unit 301 and the thermal management component 303.

[0168] The second fire-fighting medium nozzle is installed inside the second compartment 202, and the second fire-fighting medium inlet 35 is connected to the second fire-fighting medium nozzle through the fire-fighting pipe 36. The second fire-fighting medium inlet 35 is located on the outer surface of the cabinet 20.

[0169] The first enclosure 50 is located in the second sub-compartment 2012, and both the main control module and the power distribution module are housed within the first enclosure 50. The second enclosure 60 is located in the second sub-compartment 2012, and multiple bus terminals are housed within the second enclosure 60.

[0170] Some of the fire-fighting pipes 36 are located in the second sub-compartment 2012, and some of the heat exchange pipes 302 are located in the second sub-compartment 2012. The fire-fighting container 40, the fire-fighting pipes 36 located in the second sub-compartment 2012, the second box 60, the first box 50, and the heat exchange pipes 302 located in the second sub-compartment 2012 are arranged along the second direction Y.

[0171] The walls of the second sub-compartment 2012 include a first wall 2012a, a second wall 2012b and a top wall arranged opposite each other in the second direction Y. In the second direction Y, the heat exchange pipe 302 located in the second sub-compartment 2012 is closer to the first wall 2012a than the fire-fighting container 40.

[0172] The first wall 2012a has an access port 2012d. The energy storage device 200 also includes a cover 70 for closing or opening the access port 2012d. The cover 70 includes an insulation layer. A monitoring unit 37, a fire detector 38, and an explosion-proof light 39 are all located on the top wall and are arranged along the second direction Y. A socket 42 is located on the second wall 2012b and is arranged along the height direction Z with the fire container 40, with the socket 42 positioned above the fire container 40. An explosion-proof switch 41 is used to control the opening or closing of the explosion-proof light 39. The explosion-proof switch 41 is located on the second wall 2012b and is arranged along the height direction Z with the fire container 40, with the explosion-proof switch 41 positioned above the fire container 40. The explosion-proof switch 41 and the socket 42 are arranged along the first direction X.

[0173] The second sub-compartment 2012 includes a first compartment door 2012c, which is located on the side of the second sub-compartment 2012 opposite to the second compartment body 202 along a first direction X. A dehumidification module 80 is used to manage the humidity of the second compartment body 202 and the humidity of the second sub-compartment 2012, and the dehumidification module 80 is installed on the first compartment door 2012c. A fire control module 90 is communicatively connected to the fire-fighting container 40, and the fire control module 90 is installed on the first compartment door 2012c.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage device, characterized in that, include: The cabinet includes a first compartment and a second compartment arranged along a first direction. The first compartment includes a first sub-compartment and a second sub-compartment. The first sub-compartment and the second sub-compartment are arranged along the height direction. The first sub-compartment is located above the second sub-compartment. The first direction intersects the height direction. The battery assembly is housed in the second compartment; A thermal management module, at least partially housed in the first sub-compartment, is used to manage the temperature of the battery device; A fire-fighting container, housed in the second sub-compartment, the fire-fighting container being used to contain the first fire-fighting medium; The cabinet includes a first column and a second column spaced apart along a second direction. The first direction, the second direction, and the height direction are perpendicular to each other. Both the first column and the second column extend along the height direction. In the same projection plane perpendicular to the first direction, the orthographic projection of the fire-fighting container at least partially overlaps with the orthographic projection of the first column.

2. The energy storage device according to claim 1, characterized in that, The second compartment contains multiple battery clusters, each of which includes multiple battery devices connected in series; The energy storage device further includes a main control module, a bus terminal, and a sub-control module. The main control module is used to electrically control the battery device. The sub-control module includes a first control part and a second control part. The first control part is electrically connected to the bus terminal and the battery cluster. The bus terminal is used to be electrically connected to the energy storage converter. The second control part is communicatively connected to the main control module and the battery monitoring unit of the battery device. The main control module and the bus terminal are both housed in the second sub-compartment, and the fire-fighting container, the bus terminal, and the main control module are arranged along the second direction.

3. The energy storage device according to claim 2, characterized in that, The energy storage device also includes a first housing and a power distribution module. The first housing is located in the first sub-compartment, and both the main control module and the power distribution module are housed within the first housing.

4. The energy storage device according to claim 2, characterized in that, The energy storage device also includes a second housing, which is disposed in the second sub-compartment. Multiple bus terminals are provided, and all multiple bus terminals are housed in the second housing.

5. The energy storage device according to claim 2, characterized in that, The thermal management module includes a thermal management unit, heat exchange pipelines, and thermal management components. The thermal management unit is located in the first sub-compartment, and the thermal management components are used to regulate the temperature of the individual battery cells of the battery device. The heat exchange pipelines connect the thermal management unit and the thermal management components. Some of the heat exchange pipelines are located in the second sub-compartment, and the fire-fighting container, the manifold terminal, the main control module, and the heat exchange pipelines located in the second sub-compartment are arranged along the second direction.

6. The energy storage device according to claim 5, characterized in that, Some of the heat exchange pipes are located within the second compartment, and both the heat exchange pipes located within the second sub-compartment and the heat exchange pipes located within the second compartment are located on the same side of the battery device in the second direction.

7. The energy storage device according to claim 5, characterized in that, The second sub-compartment's walls include a first wall and a second wall arranged opposite each other along the second direction. In the second direction, the heat exchange pipeline located in the second sub-compartment is closer to the first wall than the fire-fighting container.

8. The energy storage device according to claim 7, characterized in that, The first wall has an access port, and the energy storage device further includes a cover for closing the access port.

9. The energy storage device according to claim 8, characterized in that, The covering includes an insulation layer.

10. The energy storage device according to any one of claims 1-9, characterized in that, The second sub-compartment includes a first compartment door, which is located on the side of the second sub-compartment opposite to the second compartment body along the first direction; The energy storage device also includes a dehumidification module, which is used to manage the humidity of the second chamber and the humidity of the second sub-chamber. The dehumidification module is installed on the first chamber door.

11. The energy storage device according to any one of claims 1-9, characterized in that, The second sub-compartment includes a first compartment door, which is located on the side of the first sub-compartment opposite to the second compartment body along the first direction; The energy storage device also includes a fire control module, which is communicatively connected to the fire container and is installed on the first compartment door.

12. The energy storage device according to any one of claims 1-9, characterized in that, The first fire-fighting medium includes aerosol or perfluoroethyl ketone.

13. The energy storage device according to any one of claims 1-9, characterized in that, The energy storage device also includes a second fire-fighting medium inlet and a second fire-fighting medium nozzle. The second fire-fighting medium nozzle is installed in the second chamber, and the second fire-fighting medium inlet is connected to the second fire-fighting medium nozzle through a fire-fighting pipeline. The second fire-fighting medium inlet is located on the outer surface of the cabinet, part of the fire-fighting pipeline is located in the second sub-compartment, and the fire-fighting pipeline and the fire-fighting container located in the second sub-compartment are arranged along the second direction.

14. The energy storage device according to claim 13, characterized in that, The second fire-fighting medium includes water.

15. The energy storage device according to any one of claims 1-9, characterized in that, The energy storage device includes a monitoring unit, a fire detector, and an explosion-proof light. The second sub-compartment has a top wall in the height direction. The monitoring unit, the fire detector, and the explosion-proof light are all installed on the top wall and are arranged along the second direction.

16. The energy storage device according to claim 15, characterized in that, The wall of the second compartment includes a first wall and a second wall disposed opposite to each other along the second direction, wherein the fire-fighting container is closer to the second wall than the first wall in the second direction; The energy storage device also includes an explosion-proof switch, which is used to control the explosion-proof light to turn on or off. The explosion-proof switch is installed on the second wall, and the explosion-proof switch and the fire-fighting container are arranged along the height direction, with the explosion-proof switch located above the fire-fighting container.

17. The energy storage device according to any one of claims 1-9, characterized in that, The walls of the second compartment include a first wall and a second wall disposed opposite to each other along the second direction, wherein the fire-fighting container is closer to the second wall than the first wall in the second direction; The energy storage device also includes a socket, which is disposed on the second wall. The socket and the fire-fighting container are arranged along the height direction, and the socket is located above the fire-fighting container.

18. An energy storage system, characterized in that, include: Energy storage converter; The energy storage device as described in any one of claims 1-17, wherein the energy storage converter is used to electrically connect the power generation device and the energy storage device.

19. A charging network, characterized in that, include: Charging stations; The energy storage device according to any one of claims 1-17, wherein the energy storage device is used to provide electrical energy to the charging pile.

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