energy storage power supply

Abstract

This application discloses an energy storage power supply, including a housing, a battery module, a fire suppression module, and a control module. The battery module, fire suppression module, and control module are disposed within the housing. The control module is electrically connected to the battery module and configured to monitor the battery status information of the battery module. In the event of an abnormality in the battery status information, the control module reduces the charging and discharging power of the battery module or disconnects the charging and discharging circuit based on the battery status information. The fire suppression module includes a passive triggering module and an active triggering module. When the triggering conditions of the passive triggering module are met in a preset detection area, the fire suppression module fills the housing with fire extinguishing agent. The active triggering module is electrically connected to the control module and receives the trigger signal from the control module, controlling the fire suppression module to fill the housing with fire extinguishing agent. Thus, through multiple thermal runaway protection mechanisms, the risk of thermal runaway of the energy storage power supply can be effectively reduced, improving the safety performance of the energy storage power supply.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to an energy storage power source. Background Technology

[0002] In recent years, with the growth in people's demand for electricity, indoor and outdoor energy storage power supplies have been widely promoted and applied. These systems are usually built based on high-energy-density lithium-ion batteries (such as lithium iron phosphate). Outdoor energy storage power supplies mainly meet the needs of outdoor power consumption scenarios such as outdoor work, outdoor camping, self-driving tours, and disaster relief, while indoor energy storage power supplies mainly meet the needs of household power loads, power outage emergencies, and "self-generation and self-consumption with surplus power fed into the grid" scenarios.

[0003] However, energy storage power supplies include electrical components such as battery cells, inverters, battery protection boards, and monitoring circuit boards. These components may experience thermal runaway due to overcharging, environmental overheating, or other reasons, releasing a large amount of heat instantaneously. This heat can transfer to surrounding electrical components, causing them to also experience thermal runaway, leading to a propagation of thermal runaway. According to a survey by the European Photovoltaic Industry Association, nearly 80% of potential users have abandoned the purchase of energy storage power supplies due to safety concerns. Therefore, the detection and prevention of thermal runaway is a crucial technical issue that urgently needs to be addressed to ensure the safety of energy storage power supplies. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. Therefore, this application provides an energy storage power source.

[0005] The energy storage power supply according to the embodiments of this application includes a housing, a battery module, a fire-fighting module, and a control module, wherein the battery module, the fire-fighting module, and the control module are disposed inside the housing;

[0006] The control module is electrically connected to the battery module and is configured to monitor the battery status information of the battery module. If the battery status information of the battery module is abnormal, the control module will reduce the charging and discharging power of the battery module or cut off the charging and discharging circuit of the battery module based on the battery status information.

[0007] The fire-fighting module includes a passive triggering module and an active triggering module. The passive triggering module is placed in a preset detection area inside the housing. When the triggering conditions of the passive triggering module are met in the preset detection area, the fire-fighting module fills the housing with fire extinguishing agent. The active triggering module is electrically connected to the control module. The active triggering module is used to receive the triggering signal from the control module and control the fire-fighting module to fill the housing with fire extinguishing agent.

[0008] In some embodiments, the housing of the energy storage power supply also includes a housing explosion-proof valve, which is configured to be triggered to open and release pressure when the gas pressure inside the housing reaches a preset threshold.

[0009] In some embodiments, the control module is further configured to: send the trigger signal to the active trigger module after reducing the charging and discharging power of the battery module or cutting off the charging and discharging circuit of the battery module, and after monitoring that the battery status information of the battery module has been abnormal for a duration that reaches a threshold duration.

[0010] In some implementations, the passive triggering module includes a flexible temperature detector.

[0011] In some embodiments, the flexible temperature detector includes a thermal wire.

[0012] In some embodiments, the passive triggering module further includes at least one of a smoke sensor, a gas sensor, and an electrochemical sensor.

[0013] In some implementations, the trigger signal is generated when the control module disconnects from the active trigger module; or

[0014] The trigger signal is generated when the control module and the active trigger module form a closed loop.

[0015] In some implementations, the control module communicates with the cloud platform, and the control module is further configured to receive a passive trigger signal from the active trigger module and send the passive trigger signal to the cloud platform.

[0016] In some embodiments, the energy storage power supply further includes a cell explosion-proof valve, which is integrated into the battery module on the side where the electrode terminals are located.

[0017] In some embodiments, the preset detection area is located on the side of the battery module where the electrode terminals are located.

[0018] In the energy storage power supply of this application embodiment, a fire suppression module and a control module are coordinated. The control module monitors battery status information in real time and promptly reduces the charging and discharging power of the battery module or cuts off the circuit when an anomaly is detected, effectively delaying or blocking the thermal runaway process and thus curbing the escalation of risks at the source. The fire suppression module, through dual protection of active and passive triggering, ensures rapid intervention from the initial stage of battery anomaly to the thermal runaway stage. In this way, battery damage is reduced through early intervention, and fire is effectively extinguished when risks escalate, comprehensively reducing safety hazards such as fire and explosion, significantly improving the operational safety and reliability of the energy storage power supply, and extending the service life of the equipment.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of a module of an energy storage power supply according to certain embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the structure of an energy storage power source according to certain embodiments of this application;

[0023] Figure 3 This is an exploded view of the energy storage power source according to certain embodiments of this application;

[0024] Figure 4 This is another exploded schematic diagram of the energy storage power source according to certain embodiments of this application;

[0025] Figure 5 This is an exploded schematic diagram of a battery cell according to certain embodiments of this application. Attached Figure Description

[0027] Energy storage power supply 100, housing 10, battery module 20, battery cell 21, housing cavity 211, end cap 212, electrode assembly 213, electrode terminal 214, fire protection module 30, passive triggering module 31, active triggering module 32, control module 40, housing explosion-proof valve 50, and cell explosion-proof valve 51. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0029] The energy storage power supply in this utility model can refer to a household energy storage power supply, a balcony photovoltaic energy storage power supply, or a portable energy storage power supply, wherein:

[0030] Home energy storage typically refers to large-capacity battery energy storage devices (such as lithium battery packs), often used in conjunction with rooftop solar photovoltaic (PV) systems. Its core function is to store excess electricity generated by PV systems or to utilize lower-priced electricity during off-peak hours. When PV power generation is insufficient (e.g., at night, on cloudy or rainy days) or during peak grid electricity prices, the energy storage system can release electricity for household use, significantly improving household energy self-sufficiency, reducing electricity bills, and providing critical backup power during grid outages. These systems generally require professional installation and have capacities ranging from 5 kWh to tens of kWh, making them suitable for households with stable electricity needs, those seeking energy independence, or those needing to cope with frequent power outages.

[0031] Balcony photovoltaic-storage power supply is a miniaturized, modular, plug-and-play photovoltaic power generation and energy storage solution designed for apartment dwellers, renters, or families with limited space. It typically consists of 1-2 small photovoltaic panels (power ranging from 200W to 800W) that can be directly installed on balconies, windowsills, or exterior walls, and an integrated or separate small-capacity energy storage unit (e.g., 0.5kWh-2kWh). Its core principle is to generate electricity locally on the balcony, prioritizing power for low-power appliances (such as lighting, routers, and small appliances) on or near the balcony. Excess energy can be stored or fed into the grid (in areas where grid connection is permitted). Installation is extremely simple, requiring no modifications to the building's electrical circuits (usually just plugging it into a wall outlet), with a low investment threshold. Its main purpose is to reduce some daily electricity costs and experience green power generation.

[0032] Portable power banks are designed for outdoor activities, mobile work, or emergency backup power. They typically use high-energy-density lithium-ion or lithium iron phosphate batteries, with capacities ranging from hundreds to thousands of watt-hours. They feature multiple interfaces including AC output, DC output (such as a car charger port), and USB fast charging, allowing direct power to laptops, small appliances (such as rice cookers and electric fans), drones, cameras, and mobile phones. Their core features are portability, ease of operation, and immediate use. They also support solar panel charging, making them an ideal power solution for camping, road trips, disaster relief, or temporary power outages at home.

[0033] Please see Figure 1 This application provides an energy storage power supply 100, which includes a housing 10, a battery module 20, a fire protection module 30, and a control module 40. The battery module 20, the fire protection module 30, and the control module 40 are disposed inside the housing 10.

[0034] The control module 40 is electrically connected to the battery module 20 and is configured to monitor the battery status information of the battery module 20. When the battery status information of the battery module 20 is abnormal, the control module 40 is controlled to reduce the charging and discharging power of the battery module 20 or cut off the charging and discharging circuit of the battery module 20 based on the battery status information.

[0035] The fire protection module 30 includes a passive triggering module 31 and an active triggering module 32. The passive triggering module 31 is placed in a preset detection area inside the housing 10. When the triggering conditions of the passive triggering module 31 are met in the preset detection area, the fire protection module 30 fills the housing 10 with fire extinguishing agent. The active triggering module 32 is electrically connected to the control module 40. The active triggering module 32 is used to receive the triggering signal from the control module 40 and control the fire protection module 30 to fill the housing 10 with fire extinguishing agent.

[0036] In the energy storage power supply 100 of this application embodiment, the fire suppression module 30 and the control module 40 are coordinated. The control module 40 monitors the battery status information in real time and, upon detecting an anomaly, promptly reduces the charging and discharging power of the battery module 20 or cuts off the circuit, effectively delaying or blocking the thermal runaway process of the battery module 20, thereby curbing the escalation of risks at the source. The fire suppression module 30, through the setting of passive and active triggering modules, realizes both active and passive triggering of fire suppression, ensuring rapid intervention from the initial stage of anomaly in the battery module 20 to the thermal runaway stage. In this way, damage to the battery module 20 is reduced through early intervention, and fire is efficiently extinguished when the risk escalates, comprehensively reducing safety hazards such as fire and explosion, significantly improving the operational safety and reliability of the energy storage power supply 100, and extending its service life.

[0037] Specifically, please participate Figure 1-5 The energy storage power supply 100 can be a household energy storage power supply. As those skilled in the art will understand, a household energy storage power supply is an energy storage device installed in a household setting. It is usually based on a battery and is equipped with photovoltaic modules, inverters, controllers and other components. It can charge when the grid electricity price is low or generate electricity from renewable energy sources such as solar energy for storage. During peak electricity consumption, power outages or when the electricity price is high, it releases electricity to power household appliances. It has functions such as peak shaving and valley filling, improving the autonomy of electricity use, reducing electricity costs, providing power to the grid to generate income, and providing backup power in emergencies. At the same time, it can monitor and regulate the amount of electricity, providing a safe, economical and flexible energy solution for household electricity use.

[0038] The casing 10 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this. An accommodating space is formed within the casing 10, and the battery module 20, fire-fighting module 30, and control module 40 are disposed within the accommodating space of the casing 10. The battery module 20 can include one or more, and the specific number of battery modules 20 can be 1, 2, 3, 4, 6, or even more. The actual number of battery modules 20 in the energy storage power supply 100 can be set according to energy storage requirements, and the specific number is not limited. When the energy storage power supply 100 includes multiple battery modules 20, they can be divided into main modules and charging modules based on function. There can be one main module and one or more charging modules. The main module is the core unit of the energy storage power supply 100, containing the main energy storage unit, the battery management system (BMS) core controller, and the main electrical and thermal management interfaces. The main unit can communicate with the power pack via the communication bus and be electrically connected to the power pack via the power bus.

[0039] The control module 40 can be a separate module specifically designed to reduce the risk of thermal runaway within the energy storage power supply 100, or it can be a module already present in the energy storage power supply 100. In this embodiment, the control module 40 can be the battery management system within the energy storage power supply 100. The control module 40 can be electrically connected to the battery module 20 and can monitor the battery status information of the battery module 20 to determine whether the battery status information of the battery module 20 is abnormal. The battery status signal can be one or more of temperature, current, voltage, or power. Specifically, it is not limited, but it is understood that when thermal runaway occurs in the battery module 29, phenomena such as a rapid increase in temperature and a sudden drop in voltage and current will occur.

[0040] If the control module 40 detects an abnormality in the battery status information of the battery module 20, it can control the battery module 20 to reduce its charging and discharging power or disconnect its charging and discharging circuit based on the degree of abnormality. For example, if the battery status information includes temperature, and the temperature exceeds a first threshold temperature, the control module 20 will reduce its charging and discharging power. If the temperature continues to rise and exceeds a second threshold temperature, the charging and discharging circuit of the battery module 20 will be disconnected, thus stopping the charging and discharging of the battery module 20.

[0041] In addition, in some examples, when the control module 40 detects an abnormality in the battery status information of the battery module 20, it generates a warning signal based on the battery status signal. The warning signal can be presented in the form of audio, text, image, or audio + text. In this way, the user can be promptly alerted to take appropriate measures.

[0042] The fire-fighting module 30 can store a fire extinguishing agent, such as perfluorohexanone (FK-5-1-12 or C6F12O) or an inert gas. The fire extinguishing agent can prevent thermal runaway of the battery module 20 through isolation, asphyxiation, cooling, and chemical inhibition methods. Specifically, the fire extinguishing agent can achieve a cooling effect through endothermic decomposition and a chemical inhibition effect in both the gas and solid phases. The cooling effect of endothermic decomposition mainly relies on the endothermic decomposition of metal oxides and carbonates. Under heat, the vaporized metal ions such as Sr, K, Mg, or electron-losing cations from the decomposition of the fire extinguishing agent exist in the form of vapor, undergoing multiple chain reactions with the active groups H·, ·OH, and O· in combustion. The active groups in combustion are largely consumed, their concentration continuously decreases, and combustion is inhibited. In the chemical inhibition of the solid phase, the solid particles in the fire extinguishing agent can adsorb the chain reaction intermediates ·OH, H·, and O·, and catalyze them to recombine into stable molecules, thereby interrupting the branching chain reactions in the combustion process.

[0043] The fire suppression module 30 includes a passive triggering module 31 and an active triggering module 32. The passive triggering module 31 is used to passively trigger the fire suppression module 30 to spray extinguishing agent into the housing 10. The passive triggering module 31 can be located in a preset detection area within the housing 10. When the preset detection area meets the triggering conditions of the passive triggering module 31, the fire suppression module 30 fills the housing 10 with extinguishing agent to prevent the battery module 20 from continuing to experience thermal runaway. Triggering conditions may include, but are not limited to, one or more of temperature triggering, gas concentration triggering, smoke triggering, and air pressure triggering. It is understood that when multiple triggering conditions are present, multi-modal data is combined to avoid false triggering of the fire suppression module 30's thermal runaway protection, which could damage the energy storage power supply 100. The preset detection area can be set according to the shape of the housing 10 and the layout of the battery module 20, and its specific location is not limited.

[0044] The active triggering module 32 is electrically connected to the control module 40. The active triggering module 32 is used to receive the trigger signal from the control module 40 and control the fire-fighting module 30 to fill the housing 10 with extinguishing agent, thereby realizing the active triggering of the fire-fighting module 30 by the control module 40. The trigger signal can be an electrical signal.

[0045] In some embodiments, the housing 10 of the energy storage power supply 100 also includes a housing explosion-proof valve 50. The housing explosion-proof valve 50 is a safety device in the energy storage power supply 100 used to prevent a sudden increase in internal pressure of the housing 10. It also has a certain ability to prevent accidental activation and the intrusion of external impurities. It is configured to be triggered to open and release pressure when the air pressure inside the housing 10 reaches a preset threshold. The housing explosion-proof valve 50 can be located in a non-personnel contact area such as the bottom or side of the housing 10, thereby balancing pressure relief efficiency and personnel safety.

[0046] Thus, by setting the explosion-proof valve 50 on the housing, the excessive pressure of the housing 10 caused by thermal runaway of the battery module 10 can be prevented from causing an explosion or rupture of the housing 10, further improving the safety performance of the energy storage power supply 100.

[0047] In some embodiments, the control module 40 is further configured to send a trigger signal to the active trigger module 50 after reducing the charging and discharging power of the battery module 20 or disconnecting the charging and discharging circuit of the battery module 20, and after monitoring that the battery status information of the battery module 20 has been abnormal for a duration that reaches a threshold duration. That is, when the abnormal battery status information continues or becomes more serious, a trigger signal is sent to the active trigger 50 to cause the fire-fighting module 30 to fill the housing 10 with fire extinguishing agent.

[0048] In this way, unnecessary fire suppression operations are avoided due to brief anomalies, reducing interference with the normal operation of the battery module 20 and the consumption of fire extinguishing agent. At the same time, when the abnormal state continues and the risk escalates, the fire suppression module 30 can be actively triggered to ensure timely fire suppression, thus taking into account both the stability of system operation and the reliability of emergency protection.

[0049] In some embodiments, the passive triggering module 31 includes a flexible temperature detector. The flexible temperature detector is capable of sensing temperature changes. That is, when the temperature in the preset detection area meets the triggering conditions of the flexible temperature detector, the fire-fighting module 30 fills the housing 10 with extinguishing agent. Furthermore, the flexible temperature detector can be bent and turned at will, is practical, small and compact, and can be flexibly arranged, making it adaptable to the complex structure of the energy storage power supply 100.

[0050] In this way, the flexible temperature detector can be cut or bent into specific shapes such as "bow" or ring according to monitoring needs, flexibly covering multiple points or large areas, thereby realizing real-time tracking of local hot spots of the battery module 20 and completing dynamic mapping of the overall temperature field.

[0051] In some embodiments, the flexible temperature detector can be a thermal wire. The thermal wire has a combustion temperature greater than 170 degrees Celsius, and after the thermal wire burns, it can trigger the fire suppression module 30 to fill the housing 10 with extinguishing agent.

[0052] Specifically, the preset detection area can be set on one side of the battery module 20. The thermal lines can be distributed in an "arch" shape and cover each area on one side of the battery module 20, thereby realizing thermal runaway detection in each area of ​​the battery module 20. Furthermore, the thermal lines can form a detection loop. When the battery module 20 experiences thermal runaway, it burns and melts, causing the detection loop to break. When the detection loop breaks and the triggering condition is met, the fire-fighting module 30 fills the housing 10 with fire extinguishing agent.

[0053] In some embodiments, the passive triggering module 31 further includes at least one of a smoke sensor, a gas sensor, and an electrochemical sensor. The smoke sensor can detect aerosols generated by electrolyte decomposition in the early stages of thermal runaway; the gas sensor and the electrochemical sensor monitor the concentrations of combustible gases such as H2 and CO, as well as electrolyte decomposition products.

[0054] In this way, by setting multiple triggering conditions, that is, by combining multimodal data, the risk of damage to the energy storage power supply 100 due to accidental triggering of the thermal runaway protection of the fire-fighting module 30 is reduced.

[0055] In some implementations, the trigger signal is generated when the control module 40 and the active trigger module 32 form a closed loop.

[0056] Thus, by using the on / off state of the loop between the control module 40 and the active trigger module 32 as the triggering basis, the direct correlation between the trigger signal and the circuit connection state is ensured, improving the reliability and accuracy of signal generation. At the same time, by using the clear physical state trigger signal of the closed loop, the triggering logic is simplified and additional control links are reduced.

[0057] In some implementations, the trigger signal is generated when the control module 40 is disconnected from the active trigger module 32.

[0058] In this embodiment, under normal circumstances, the control module 40 can form a closed loop with the active trigger module 32. When the control module 40 detects that the battery status information is abnormal and cannot be restored to normal or continues to deteriorate, it can actively disconnect the loop with the active trigger module 32. Then the active trigger module 32 is regarded as having received a trigger signal, and controls the fire-fighting module 30 to fill the housing 10 with fire extinguishing agent.

[0059] Thus, the active triggering module 32 uses the change of connection state as the triggering logic, which simplifies the generation mechanism of the trigger signal and eliminates the need for additional active triggering operations. In addition, it can avoid the failure of the control module 40 to provide a trigger signal to the active triggering module 32 due to thermal runaway damage, thereby improving the effect of active triggering.

[0060] In some implementations, the control module 40 communicates with the cloud platform, and the control module 40 is also configured to receive the passive trigger signal from the active trigger module 32 and send the passive trigger signal to the cloud platform.

[0061] Specifically, the passive trigger signal can be generated during the loop state switching between the control module and the active trigger module. Furthermore, the loop state switching between the control module and the active trigger module can be implemented by the passive trigger module. For example, when the passive trigger module includes a thermal wire, it can trigger the loop between the control module and the active trigger module to change from a connected state to a disconnected state, or from a disconnected state to a connected state, thereby triggering the generation of the passive trigger signal. This allows the control module to recognize that the fire alarm module has been passively triggered and to fill the housing with extinguishing agent. Furthermore, the control module can send the passive trigger signal to the cloud platform, enabling the cloud platform to notify the user or the fire alarm platform.

[0062] In some embodiments, the energy storage power supply 100 also includes a cell explosion-proof valve 51, which is integrated into the battery module 20 and located on the side where the electrode terminals are located.

[0063] Specifically, the battery module 20 may integrate multiple battery cells 21. A battery cell 21 refers to the smallest unit that makes up a battery. Each battery cell 21 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 21 may be cylindrical, flat, cuboid, or other shapes.

[0064] Multiple battery cells 21 can be connected in series, parallel, or in a hybrid configuration. A hybrid configuration means that multiple battery cells 21 are connected in both series and parallel configurations. Multiple battery cells 21 can be directly connected in series, parallel, or in a hybrid configuration, and then the entire assembly of the multiple battery cells 21 is housed within the housing 10. Alternatively, the battery module 20 can also be composed of multiple battery cells 21 connected in series, parallel, or in a hybrid configuration to form a battery module, which is then housed within the housing 10. The battery module 20 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 21.

[0065] Please see Figure 5 Each battery cell 21 may include a receiving cavity 211, an end cap 212, an electrode assembly 213, electrode terminals 214, and other functional components. The receiving cavity 211 is a component that isolates the internal environment of the battery cell 21 from the external environment. The end cap 212 is enclosed within the receiving cavity 211 to isolate the internal environment of the battery cell 21 from the external environment. The end cap 212 may be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 212 is not easily deformed under pressure or impact, giving the battery cell 21 higher structural strength and improved safety performance. Functional components such as electrode terminals 214 may be provided on the end cap 212. The electrode terminals 214 are electrically connected to the electrode assembly 213 for outputting or inputting electrical energy from the battery cell 21.

[0066] The cell explosion-proof valve 51 may include multiple valves, each of which may be disposed on the end cap 212. It is used to release the internal pressure when the internal pressure or temperature of the battery cell 21 reaches a threshold. Specifically, the cell explosion-proof valve 51 may adopt a pressure-sensitive or temperature-sensitive element or structure. That is, when the internal pressure or temperature of the battery cell 21 reaches a predetermined threshold, the cell explosion-proof valve 51 performs an action or the weak structure provided in the cell explosion-proof valve 51 is destroyed, thereby forming a release channel for the internal pressure of the battery cell 21 to be released.

[0067] Thus, when a single battery cell 21 inside the battery module 20 generates high-pressure gas due to thermal runaway, the cell explosion-proof valve 51 integrated on the electrode terminal 214 side can quickly release pressure nearby, shortening the gas release path, improving pressure release efficiency, and avoiding high pressure impact damage to the electrode terminal 214 and circuit connections. At the same time, the electrode terminal 214 side is a critical area for electrical connection of the battery module 20, and the placement of the cell explosion-proof valve 51 here can prioritize the protection of electrical connection safety, preventing electrode short circuits or poor contact due to sudden pressure rise. Furthermore, the housing explosion-proof valve 50 and the cell explosion-proof valve 51 form a module-level + housing-level dual pressure relief system. The cell explosion-proof valve 51 prioritizes handling the initial pressure of single cell thermal runaway, while the housing explosion-proof valve 50 should deal with the overall pressure rise caused by the cascading runaway of multiple modules. The synergistic effect of the two can effectively block the spread of thermal runaway and protect the structural integrity of the housing 10.

[0068] In some embodiments, the preset detection area is located on the side of the battery module 20 where the electrode terminals 214 are located.

[0069] Thus, by setting the preset detection area on the battery module 20 and on the same side as the electrode terminal 214, since the electrode terminal 214 is a key interface for the battery electrochemical reaction, its vicinity is prone to thermal runaway due to poor contact, overcurrent heating, etc. The preset detection area can capture subtle abnormalities such as temperature and voltage of the electrode terminal 214 and surrounding cells in real time, thereby improving the triggering accuracy of the passive detection module 20.

[0070] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An energy storage power supply, characterized by, The energy storage power supply includes a housing, a battery module, a fire-fighting module, and a control module, wherein the battery module, the fire-fighting module, and the control module are disposed within the housing; The control module is electrically connected to the battery module and is configured to monitor the battery status information of the battery module. If the battery status information of the battery module is abnormal, the control module will reduce the charging and discharging power of the battery module or cut off the charging and discharging circuit of the battery module based on the battery status information. The fire-fighting module includes a passive triggering module and an active triggering module. The passive triggering module is placed in a preset detection area inside the housing. When the triggering conditions of the passive triggering module are met in the preset detection area, the fire-fighting module fills the housing with fire extinguishing agent. The active triggering module is electrically connected to the control module. The active triggering module is used to receive the triggering signal from the control module and control the fire-fighting module to fill the housing with fire extinguishing agent.

2. The energy storage power supply of claim 1, wherein, The energy storage power supply also includes a housing explosion-proof valve, which is configured to be triggered to open and release pressure when the air pressure inside the housing reaches a preset threshold.

3. The energy storage power supply of claim 1, wherein, The control module is also used to: send the trigger signal to the active trigger module after reducing the charging and discharging power of the battery module or cutting off the charging and discharging circuit of the battery module, and after monitoring that the battery status information of the battery module has been abnormal for a period of time that reaches a threshold duration.

4. The energy storage power supply of claim 1, wherein, The passive triggering module includes a flexible temperature detector.

5. The energy storage power supply of claim 4, wherein, The flexible temperature detector includes a thermal wire.

6. An energy storage power supply as claimed in claim 4 or 5, wherein, The passive triggering module also includes at least one of a smoke sensor, a gas sensor, and an electrochemical sensor.

7. The energy storage power supply of claim 1, wherein, The trigger signal is generated when the control module disconnects from the active trigger module; or The trigger signal is generated when the control module and the active trigger module form a closed loop.

8. The energy storage power supply of claim 1, wherein, The control module communicates with the cloud platform, and is also configured to receive the passive trigger signal from the active trigger module and send the passive trigger signal to the cloud platform.

9. The energy storage power supply of claim 1, wherein, The preset detection area is located on the side of the battery module where the electrode terminals are located.

10. The energy storage power supply of claim 1, wherein, The energy storage power supply also includes a cell explosion-proof valve, which is integrated into the battery module and located on the side with electrode terminals.

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