Modular combined intelligent city energy storage system

Abstract

This application discloses a mobile, modular smart city energy storage system, belonging to the field of power energy storage. Based on large-capacity energy storage modules and a cloud management system, it allows for flexible, on-demand series and parallel connections. Utilizing transportation platforms such as trains, automobiles, airplanes, drones, and ships, it forms multiple mobile, modular smart city energy storage systems, including energy storage trains, energy storage vehicles, energy storage ships, and energy storage aircraft. This constructs a flexible, mobile, and rapidly combinable smart city energy storage and power supply system. This application employs a modular integrated design, greatly facilitating transportation and improving the overall mobility of the system. Compared to traditional energy storage base stations of the same scale, it significantly reduces weight, making transportation more convenient. Simultaneously, the cloud management system enables real-time monitoring of multiple energy storage modules, achieving intelligent resource allocation, optimizing charging and discharging strategies, and ensuring the long-term stable operation of the energy storage system.

Description

Technical Field

[0001] This application relates to the field of power energy storage, and in particular to a mobile modular smart city energy storage system. Background Technology

[0002] In recent years, with the emergence of issues such as power shortages and eco-friendly energy, energy storage systems (ESS) for storing generated electricity have attracted increasing attention. However, during the research process of this application, the inventors discovered that existing energy storage systems are usually fixed in one location and cannot be moved, resulting in poor mobility and an inability to meet the functions of inter-regional coordination. Therefore, it is necessary to design a mobile, modular smart city energy storage system. Summary of the Invention

[0003] This application provides a mobile, modular smart city energy storage system to address the problems mentioned in the background art.

[0004] A mobile modular smart city energy storage system includes multiple energy storage modules and a cloud management system. The energy storage modules are solid-state battery cabinets, which are arranged in a grid pattern. Each solid-state battery cabinet is equipped with a charging / discharging interface and a series interface. The multiple solid-state battery cabinets are electrically connected end-to-end through the series interface. The first and / or last solid-state battery cabinets in the multiple solid-state battery cabinets are the output and output terminals. The cloud management system is signal-connected to the multiple energy storage modules.

[0005] Preferably, the solid-state battery cabinet is provided with a connecting seat at the bottom, the top of the connecting seat is fixedly connected to the solid-state battery cabinet, the bottom of the connecting seat is provided with multiple supporting feet, and a connecting groove is provided between the multiple supporting feet and the top of the connecting seat. The two ends of the series wires of the two adjacent solid-state battery cabinets are respectively connected to the series interface of the two solid-state battery cabinets through the connecting groove.

[0006] Preferably, the charging / discharging interface and the series interface are located on the left and right sides of the solid-state battery cabinet, and the left and right sides of the solid-state battery cabinet are each provided with a sealing cover adapted to the charging / discharging interface and the series interface, and the charging / discharging interface and the series interface are both located inside the sealing cover.

[0007] A mobile modular smart city energy storage system includes multiple energy storage modules and a cloud management system. The energy storage modules are solid-state battery containers, which are arranged in a multi-layered grid pattern. Each solid-state battery container is equipped with multiple first connecting components and multiple second connecting components corresponding to the first connecting components. The multiple solid-state battery containers are electrically connected end-to-end through the first and second connecting components. The first and / or the last solid-state battery container in the multiple solid-state battery containers are the output and output terminals. The cloud management system is signal-connected to the multiple solid-state battery containers.

[0008] Preferably, the first connecting assembly includes a first receiving groove, a first connector installed on the inner wall of the first receiving groove, and a metal conductive block installed on the inner wall of the first connector. The second connecting assembly includes a second receiving groove, a second connector installed on the inner wall of the second receiving groove, and an electromagnet slidably installed on the inner wall of the second connector. When two adjacent solid-state battery containers are connected, the electromagnet of one solid-state battery container is magnetically attracted to the metal conductive block of the other solid-state battery container to achieve communication.

[0009] Preferably, a telescopic spring is connected to the back of the electromagnet, one end of the telescopic spring is connected to the inner wall of the second connector, and the other end of the telescopic spring is connected to the back of the electromagnet. The telescopic spring can provide a restoring force for the electromagnet.

[0010] Preferably, the second connecting assembly further includes two strip blocks, two limiting rods slidably connected to the two strip blocks, and two elastic pads in contact with the two limiting rods. Both strip blocks are connected to the inner wall of the second connecting head, and both strip blocks are slidably connected to their respective corresponding limiting rods. One end of each of the two limiting rods is fixedly connected to the back of the electromagnet, and both elastic pads are connected to the inner wall of the second connecting head.

[0011] As can be seen from the above technical solution, the mobile modular smart city energy storage system provided in this application consists of multiple energy storage modules. The energy storage system adopts a modular integrated design, which can greatly facilitate transportation and improve the overall mobility of the system. Compared with traditional energy storage base stations of the same scale, it significantly reduces weight and makes transportation more convenient. At the same time, by using a cloud management system to monitor multiple energy storage modules in real time, it can realize intelligent resource allocation, optimize charging and discharging strategies, and ensure the long-term stable operation of the energy storage system. Attached Figure Description

[0012] Figure 1 A perspective view of the solid-state battery cabinet in the mobile modular smart city energy storage system provided in this application;

[0013] Figure 2A schematic diagram showing the connection of multiple solid-state battery cabinets in the mobile modular smart city energy storage system provided in this application;

[0014] Figure 3 A perspective view of a solid-state battery container in a mobile modular smart city energy storage system provided in this application;

[0015] Figure 4 A schematic diagram showing the connection of multiple solid-state battery containers in the mobile modular smart city energy storage system provided in this application;

[0016] Figure 5 A schematic diagram of the connection between two adjacent solid-state battery containers in the mobile modular smart city energy storage system provided in this application;

[0017] Figure 6 A schematic diagram of the connection between the first connector and the second connector in the mobile modular smart city energy storage system provided in this application;

[0018] Figure 7 A schematic diagram of the fire-fighting device in the mobile modular smart city energy storage system provided in this application;

[0019] Figure 8 Flowchart of the Beidou-transmitted cloud operation management system in the mobile modular smart city energy storage system provided in this application;

[0020] Figure 9 A flowchart of the cloud-edge-device management system in the mobile modular smart city energy storage system provided in this application.

[0021] Wherein: 10-Solid-state battery cabinet, 101-Charging and discharging interface, 102-Series interface, 103-Connecting seat, 104-Supporting foot, 105-Connecting groove, 106-Series wire, 107-Sealing cover, 20-Solid-state battery container, 201-First connecting assembly, 202-Second connecting assembly, 203-First receiving groove, 204-First connector, 205-Metal conductive block, 206-Second receiving groove, 207-Second connector, 208-Electromagnet, 209-Cover plate, 210-Telescopic spring, 211-Strip block, 212-Limiting rod, 213-Elastic pad, 30-Air conditioning module, 301-Ventilation module, 40-Fire-fighting device, 401-Fire-fighting pipe, 402-Main pipe, 403-Branch pipe, 404-Injection nozzle. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but this is not intended to limit the scope of protection of the present invention. The terms "front," "rear," "left," "right," "upper," and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "first" and "second" are only used to simplify the textual description and distinguish it from similar objects, and should not be construed as a specific sequential relationship.

[0023] Example 1:

[0024] See Figure 1 and Figure 2 This embodiment provides a mobile modular smart city energy storage system, including multiple energy storage modules and a cloud management system. The energy storage modules are solid-state battery cabinets 10 or other large-capacity new energy storage cabinets. The multiple solid-state battery cabinets 10 are distributed in a grid pattern. The solid-state battery cabinets 10 are provided with charging and discharging interfaces 101 and series interfaces 102. The multiple solid-state battery cabinets 10 are electrically connected end to end by the series interfaces 102. The first solid-state battery cabinet and / or the last solid-state battery cabinet in the multiple solid-state battery cabinets 10 are the output and output terminals. The cloud management system is signal connected to the multiple energy storage modules.

[0025] The above-mentioned solution adopts a modular integrated design, which greatly facilitates transportation and improves the overall mobility of the system. Based on large-capacity energy storage modules and a cloud management system, it can primarily rely on my country's well-developed railway network, supplemented by road, sea, and air transport. Through on-demand free combination and parallel connection, and utilizing transportation platforms such as trains, automobiles, airplanes, drones, and ships, it forms multiple mobile and modular smart city energy storage systems, including energy storage trains, energy storage vehicles, energy storage ships, and energy storage aircraft. This constructs a flexible, mobile, and rapidly combinable smart city energy storage and power supply system that can be scaled up or down and quickly assembled. The system further enhances the city's energy storage, mobile transportation, and precise power supply guarantees. It features flexible mobility, three-dimensional delivery, free combination, on-demand deployment, unattended operation, intelligent management and control, safety and efficiency, and precise guarantee. At the same time, it uses a cloud management system to monitor multiple energy storage modules in real time. Based on the real-time operational data transmitted from BeiDou, it performs system analysis, intelligent resource allocation, and optimizes charging and discharging strategies. Through digital twins, predictive maintenance reduces faults and health management, ensuring long-term stable operation. In addition, it provides highly secure data interaction technology to ensure the safe and stable transmission of data.

[0026] See Figure 2The solid-state battery cabinet 10 has a connecting seat 103 at the bottom, and the top of the connecting seat 103 is fixedly connected to the solid-state battery cabinet 10. The bottom of the connecting seat 103 has multiple supporting feet 104, and a connecting groove 105 is provided between the multiple supporting feet 104 and the top of the connecting seat 103. The two adjacent solid-state battery cabinets 10 are connected to the series interface 102 of the two solid-state battery cabinets 10 by the two ends of the series wire 106 passing through the connecting groove 105 respectively. The charging and discharging interface 101 and the series interface 102 are provided on the left and right sides of the solid-state battery cabinet 10. The left and right sides of the solid-state battery cabinet 10 are provided with sealing covers 107 that are adapted to the charging and discharging interface 101 and the series interface 102. The charging and discharging interface 101 and the series interface 102 are both located inside the sealing covers.

[0027] See Figure 8 The cloud management system includes a Beidou-based cloud-based operation management system. This system, through intelligent modules, collects and processes real-time power, voltage, location, and movement trajectory data of the solid-state battery cabinet 10. The collected data is then transmitted to the Beidou data transmission terminal via micro base stations and industrial air receivers. The Beidou data transmission terminal then transmits the data to the Beidou satellites, which in turn transmit it to the Beidou receiver. The Beidou receiver receives and decodes the navigation signals transmitted by the Beidou satellites, converting these signals into information such as position, speed, and time. The Beidou receiver converts signals received from the Beidou satellites using decoding technology. The system provides user-readable data, offering high-precision and high-reliability positioning services. The data is then transmitted to a data forwarding workstation, which acts as a data transfer hub, responsible for receiving, processing, and forwarding data to ensure fast, stable, and secure transmission, while also guaranteeing data reliability and integrity. Specifically, the data forwarding workstation integrates and distributes data from different sources to meet the needs of multiple terminal devices. It also encrypts and compresses the data to improve transmission efficiency and security. The data is then transmitted to a server (internal network) for storage and finally to the monitoring platform's computer terminal for convenient user interaction.

[0028] See Figure 9The cloud management system also includes a cloud-edge-device management system. This system encompasses photovoltaic power generation, DC charging piles, V2G, energy storage containers, energy storage cabinets, EMS, electrode EMS, local controllers, SCADA, power trading, virtual power plants, and management systems. The relationship between the virtual power plant and the management system is primarily reflected in its role as an energy management system. Through advanced information and communication technologies and software systems, it aggregates and coordinates dispersed energy resources to form a special power plant participating in the electricity market and grid operation. The cloud-edge-device management system also includes four modules: a data layer, a model layer, an algorithm layer, and an application layer. More specifically, the data layer is the foundation of the system, responsible for collecting, storing, and processing various data to provide data support for upper-layer applications. The model layer, through training... The cloud-edge-device management system trains and optimizes machine learning models to provide intelligent decision support for upper-layer applications. The algorithm layer processes and analyzes data by implementing various algorithms, such as deep learning and regression analysis, to provide intelligent solutions for upper-layer applications. The application layer is the level where users directly interact, responsible for displaying and processing user requests and providing various application services. Therefore, the cloud-edge-device management system has the advantages of real-time analysis of on-site data, rapid response to power grid demands, improved power quality, edge autonomy and cloud collaboration, enhanced system resilience and reliability, continuous power supply, intelligent resource allocation to optimize charging and discharging strategies, participation in the electricity market, improved economic efficiency, predictive maintenance to reduce faults, health management to ensure long-term stable operation, cost reduction and efficiency improvement, edge processing to protect data security and privacy, and multi-layer protection to ensure safe and reliable interaction.

[0029] This mobile, modular smart city energy storage system uses multiple energy storage modules as basic units to achieve a high-energy-density, high-safety energy storage system. Currently, traditional energy storage systems primarily use liquid batteries, with no application of solid-state batteries. This modular energy storage system uses solid-state batteries as the energy storage unit for the mobile energy storage power supply system, significantly increasing the overall energy capacity of the energy storage system while greatly improving its operation and safety. This modular energy storage system has four innovative aspects: intrinsically safe in-situ solidification technology, next-generation high-energy-density, high-safety battery technology, high-safety cathode materials, and deep integration of cloud, edge, and terminal. This technology involves adding small-molecule polymer monomers to a basic liquid electrolyte. After the electrolyte uniformly wets the battery cell, polymerization is triggered, transforming the electrolyte into a non-flowing solid electrolyte. This allows for the regulation of the battery's electrical performance and safety. The technology offers high in-situ curing degree, good thermal stability, and high lithium-ion conductivity. Simultaneously, micro-nano bubble elimination and uniform curing technologies have been developed to improve the curing uniformity of the in-situ cured high-safety battery, thereby enhancing both electrical performance and thermal safety. Next-generation high-energy-density, high-safety battery technology integrates functional coatings, functional additives, high-lithium-ion conductivity electrolyte membranes, and in-situ curing, among other high-safety battery technologies. By combining key technologies with existing liquid battery assembly processes, a targeted high-energy-density, high-safety battery manufacturing process has been designed and developed. This fills the gap in the large-scale continuous production process of high-safety batteries, solving problems such as difficult assembly and poor consistency. It enables the large-scale production and stable supply of high-energy-density, high-safety battery products and samples. The product's cell energy density reaches 363Wh / kg, and it can pass rigorous nail penetration and gunshot tests, withstand a 190℃ hot box, and maintain an operating temperature range of 40-60℃. The high-safety cathode material utilizes technologies such as crystal domain control and homogeneous coating to stabilize lattice oxygen and enhance the material's intrinsic safety. This allows for improved battery safety; significant enhancements in material electrical performance are achieved through the development of novel sintering processes and surface defect construction strategies. High-capacity, high-safety, high-nickel materials can reduce oxygen production by more than 50% during high-voltage charging and exhibit significant advantages in cycle performance. Deep integration of cloud, edge, and terminal systems, based on real-time operational data transmitted from BeiDou, enables system analysis, intelligent resource allocation, and optimization of charging and discharging strategies. Digital twins facilitate predictive maintenance to reduce faults, and health management ensures long-term stable operation. Furthermore, highly secure data interaction technology guarantees the safe and stable transmission of data.

[0030] The innovations in the above four aspects encompass four key technologies: solid-state battery energy storage system application technology, three-dimensional safety protection technology for energy storage systems, highly mobile energy storage battery system technology, and deep cloud-edge integration technology. More specifically, the solid-state battery energy storage system application technology involves determining the optimal solid-state battery performance through a series of electrical performance (such as energy density, cycle performance, and rate performance) and safety performance (such as overcharge, over-discharge, high-temperature storage, short circuit, and vibration) tests, matching it to the energy storage system, and forming the best integrated unit. The three-dimensional safety protection technology for energy storage systems involves research from eight aspects: cell safety, structural safety, system safety, electrical safety, digital twin, environmental safety, thermal safety, and fire safety. Through a series of tests and simulations, materials and structures are designed, and digital twin technology enables cloud-based visualization of operational status and timely early warning of faulty cells. The highly mobile energy storage battery system technology involves designing the battery energy storage system structure to adapt to transportation under various conditions (sea, land, and air), while optimizing the system's vibration damping structure to achieve… The impact of environmental vibrations under various transportation conditions on energy storage systems; deep cloud-edge fusion technology: operational data is transmitted back to the cloud operation management system via BeiDou, and the system's evolutionary calculations enhance the system's resilience and reliability, ensuring sustainable power supply. Edge processing protects data privacy and security, and multi-layered protection ensures safe and reliable interaction. Traditional energy storage systems are usually fixed in a certain location, while this energy storage system also has high mobility, enabling it to be transported to any designated location by sea, land, and air in emergencies and operate safely and stably. The system adopts a modular integrated design, which greatly facilitates transportation and improves system mobility. For the same amount of energy, the weight of the energy storage system can be reduced by more than 55%, making transportation more convenient. At the same time, the system's seismic and shock resistance performance is twice that of the national standard, which can meet the transportation needs of energy storage systems in various scenarios.

[0031] Example 2:

[0032] See Figure 3 and Figure 4 This embodiment provides a mobile modular smart city energy storage system, including multiple energy storage modules and a cloud management system. The energy storage modules are solid-state battery containers 20. The multiple solid-state battery containers 20 are distributed in a multi-layered grid pattern and can be arranged side by side and stacked. Each solid-state battery container 20 is provided with multiple first connecting components 201 and multiple second connecting components 202 corresponding to the first connecting components 201. The multiple solid-state battery containers 20 are electrically connected end to end through the first connecting components 201 and the second connecting components 202. The first solid-state battery container and / or the last solid-state battery container in the multiple solid-state battery containers 20 are the output and output terminals. The cloud management system is signal connected to the multiple solid-state battery containers.

[0033] See Figure 5 and Figure 6The first connecting component 201 includes a first receiving groove 203, a first connector 204 installed on the inner wall of the first receiving groove 203, and a metal conductive block 205 installed on the inner wall of the first connector 204. The second connecting component 202 includes a second receiving groove 206, a second connector 207 installed on the inner wall of the second receiving groove 206, and an electromagnet 208 slidably installed on the inner wall of the second connector 207. When two solid-state battery containers 20 are connected, the electromagnet 208 of one solid-state battery container 20 is magnetically attracted to the metal conductive block 205 of the other solid-state battery container 20 to achieve communication. More specifically, multiple cover plates 209 are installed (by screws or bolts) on the surface of the solid-state battery container 20. The multiple cover plates 209 can cover the first connecting component 201 or the second connecting component 202 before assembly to prevent dust from entering and affecting the connection effect during use. When multiple solid-state battery containers 20 need to be assembled, the solid-state battery containers are... The corresponding cover plate 209 on the surface of the solid-state battery container 20 can be removed. In addition, the first connecting component 201 or the second connecting component 202 can be located on at least one side of the solid-state battery container 20 (e.g., the left and right, front and back, or top and bottom surfaces) to facilitate the rapid assembly of two adjacent solid-state battery containers 20. The function of the metal conductive block 205 in the first connecting component 201 is to provide a current path to ensure that the current can pass smoothly through the winding of the electromagnet 208. When the electromagnet 208 is energized, it generates a magnetic field. At this time, the electromagnet 208 is attracted to the surface of the metal conductive block 205. This magnetic field can change the electron flow inside the metal conductive block 205, thereby affecting its conductivity. Specifically, the magnetic field of the electromagnet 208 can change the electron movement state in the metal conductive block 205, resulting in a change in resistance, which in turn affects the conductivity, so that the first connecting component 201 and the second connecting component 202 can be electrically connected, and the two adjacent solid-state battery containers 20 can be connected in series.

[0034] A telescopic spring 210 is connected to the back of the electromagnet 208. One end of the telescopic spring 210 is connected to the inner wall of the second connector 207, and the other end is connected to the back of the electromagnet 208. The telescopic spring 210 provides a restoring force for the electromagnet 208. More specifically, when the two solid-state battery containers 20 are assembled, the first connecting component 201 and the second connecting component 202 will approach each other. When the first connector 204 and the second connector 207 are aligned, by energizing the electromagnet 208, the electromagnet 208 will possess electromagnetic force. The electromagnet 208 will automatically attract to the surface of the metal conductive block 205, causing the first connecting component... The first connector 204 and the second connector 202 are quickly connected to complete the assembly between the two solid-state battery containers 20. This eliminates the need for detailed process design and high worker skill levels, saving time spent on connection and improving overall work efficiency. When it is necessary to separate the two solid-state battery containers 20, simply de-energize the electromagnet 208. The electromagnet 208 will lose its magnetic force and, under the action of the extension spring 210, it can detach from the metal conductive block 205 and return to the interior of the second connector 207, thus disconnecting the first connector 204 from the second connector 207. This allows the two corresponding solid-state battery containers 20 to be disassembled and separated.

[0035] The second connecting assembly 202 also includes two strip blocks 211, two limiting rods 212 slidably connected to the two strip blocks 211, and two elastic pads 213 in contact with the two limiting rods 212. Both strip blocks 211 are connected to the inner wall of the second connecting head 207, and both strip blocks 211 are slidably connected to their respective limiting rods 212. One end of each limiting rod 212 is fixedly connected to the back of the electromagnet 208. Both elastic pads 213 are connected to the inner wall of the second connecting head 207. More specifically, by making the two limiting rods 211... 12 is fixedly connected to the back of electromagnet 208, and the two limiting rods 212 are slidably connected to the corresponding strip blocks 211 respectively. The limiting rods 212 can guide and limit the electromagnet 208, so that the electromagnet 208 can always remain stable when it is displaced. The two elastic pads 213 correspond to the two limiting rods 212 and can buffer the limiting rods 212, reducing the damage to the inner wall of the second connector 207 caused by the repeated back and forth of the limiting rods 212, which is conducive to extending the service life of the second connector 207.

[0036] See Figure 3The solid-state battery container 20 also includes an air conditioning module 30 and a ventilation module 301. The air conditioning module 30 can be used to control the internal air of the solid-state battery container, and the ventilation module 301 can be used to exhaust the internal gas of the solid-state battery container to the outside. More specifically, the air conditioning module 30 can include at least one HVAC (heating, ventilation and air conditioning). The HVAC can allow air to circulate inside the solid-state battery container. In this case, the internal temperature of the solid-state battery container can be reduced, which can protect the electronic components inside the solid-state battery container and reduce the probability of damage to the electronic components due to excessive internal temperature of the solid-state battery container.

[0037] See Figure 7 The solid-state battery container 20 includes a fire-fighting device 40, which supplies fire-extinguishing liquid from an external source to the interior of each solid-state battery container 20. More specifically, the fire-fighting device 40 includes a fire pipe 401, two main pipes 402, two branch pipes 403, and multiple injection nozzles 404. The two fire pipes 401, two main pipes 402, two branch pipes 403, and multiple injection nozzles 404 are connected sequentially. When a fire occurs inside the solid-state battery container 20, the fire-fighting device is connected to the fire pipe 401 on one side of the solid-state battery container 20, and the fire-extinguishing liquid is supplied through the fire pipe 401 and the main pipes 402. 02. Branch pipe 403 and injection nozzle 404 deliver fire extinguishing fluid into the solid-state battery container 20. The injection nozzle 404 is equipped with a heat-sensitive glass bulb. In this case, only the heat-sensitive glass bulb on the injection nozzle 404 where a fire occurs will rupture due to the excessively high temperature inside the solid-state battery container 20, spraying the fire extinguishing fluid into the burning solid-state battery container 20 for fire extinguishing, instead of supplying the fire extinguishing fluid to other solid-state battery containers 20 that are in normal condition. This allows the fire extinguishing fluid to be injected intensively into the problematic solid-state battery container 20, which is beneficial to improving the overall fire extinguishing effect.

[0038] The cloud management system in this embodiment is the same as that in Embodiment 1, and will not be described again here.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Therefore, although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A mobile modular smart city energy storage system, characterized in that, The system includes multiple energy storage modules and a cloud management system. The energy storage modules are solid-state battery cabinets, which are arranged in a grid pattern. Each solid-state battery cabinet is equipped with a charging / discharging interface and a series interface. The multiple solid-state battery cabinets are electrically connected end-to-end through the series interface. The first and / or last solid-state battery cabinets in the system are output terminals. The cloud management system is signal-connected to the multiple energy storage modules.

2. The mobile modular smart city energy storage system according to claim 1, characterized in that, The solid-state battery cabinet has a connecting base at the bottom, and the top of the connecting base is fixedly connected to the solid-state battery cabinet. The bottom of the connecting base has multiple supporting feet, and there is a connecting groove between the multiple supporting feet and the top of the connecting base. The two ends of the series wires of the two adjacent solid-state battery cabinets are connected to the series interface of the two solid-state battery cabinets respectively through the connecting groove.

3. The mobile modular smart city energy storage system according to claim 1, characterized in that, The charging / discharging interface and the series interface are located on the left and right sides of the solid-state battery cabinet. The left and right sides of the solid-state battery cabinet are each provided with a sealing cover adapted to the charging / discharging interface and the series interface. The charging / discharging interface and the series interface are both located inside the sealing cover.

4. A mobile, modular smart city energy storage system, characterized in that: The system includes multiple energy storage modules and a cloud management system. The energy storage modules are solid-state battery containers, which are arranged in a multi-layered grid pattern. Each solid-state battery container is equipped with multiple first connecting components and multiple second connecting components corresponding to the first connecting components. The multiple solid-state battery containers are electrically connected end-to-end through the first and second connecting components. The first and / or the last solid-state battery container in the system are the output and output terminals. The cloud management system is signal-connected to the multiple solid-state battery containers.

5. The mobile modular smart city energy storage system according to claim 4, characterized in that, The first connecting component includes a first receiving groove, a first connector installed on the inner wall of the first receiving groove, and a metal conductive block installed on the inner wall of the first connector. The second connecting component includes a second receiving groove, a second connector installed on the inner wall of the second receiving groove, and an electromagnet slidably installed on the inner wall of the second connector. When two adjacent solid-state battery containers are connected, the electromagnet of one solid-state battery container is magnetically attracted to the metal conductive block of the other solid-state battery container to achieve communication.

6. The mobile modular smart city energy storage system according to claim 5, characterized in that, A telescopic spring is connected to the back of the electromagnet. One end of the telescopic spring is connected to the inner wall of the second connector, and the other end of the telescopic spring is connected to the back of the electromagnet. The telescopic spring can provide a restoring force for the electromagnet.

7. The mobile modular smart city energy storage system according to claim 5, characterized in that, The second connecting assembly further includes two strip blocks, two limiting rods slidably connected to the two strip blocks, and two elastic pads in contact with the two limiting rods. Both strip blocks are connected to the inner wall of the second connecting head, and both strip blocks are slidably connected to their respective corresponding limiting rods. One end of each of the two limiting rods is fixedly connected to the back of the electromagnet, and both elastic pads are connected to the inner wall of the second connecting head.

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