CN115634402A - Battery fire control management system and battery - Google Patents
Battery fire control management system and battery Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model provides a battery fire control management system and battery, relates to energy storage battery and the relevant technical field of fire control, and this management system includes: the fire-fighting monitoring controller is used for detecting the battery thermal runaway early-stage monitoring parameters of the battery pack in real time, and the monitoring parameters are generated and uploaded by the fire-fighting monitoring controller; the hot aerosol fire extinguishing device is controlled to perform fire extinguishing action, and the hot aerosol fire extinguishing device performs oxygen dilution and temperature reduction in the battery pack to realize fire extinguishing; and the main controller is used for issuing a fire extinguishing command. According to the invention, a fire-fighting monitoring controller and a hot aerosol fire extinguishing device are added on the existing control scheme, so that the identification of abnormal parameters of the lithium battery during thermal runaway is realized, and the early fire-fighting early warning and fire extinguishing control functions are realized; the invention adopts the design of full-submerged gas fire prevention and control, the extinguishing agent directly acts in the battery box, thereby realizing PACK-level fire-fighting and targeted protection in the battery box, and having fast response speed and high fire-fighting efficiency.
Description
Technical Field
The invention relates to the technical field of energy storage batteries and fire control, in particular to a battery fire control management system and a battery.
Background
According to the data of GGII (high industrial and industrial research institute), the discharge capacity of domestic energy storage batteries in 2021 is 48GWH, which is increased by 2.6 times on a par; in 2022, the domestic energy storage battery market is more highly popular, the high growth situation is continuously kept, and the conservative estimated annual shipment volume is expected to break through 90GWh. But meanwhile, the problems of frequent safety accidents of the energy storage power station, serious disasters caused by thermal runaway of the lithium battery and the like are gradually highlighted.
The energy storage power station is a power station which is set up for adjusting peak-valley power utilization problems, in short, surplus electric quantity is stored in the low-peak period of power utilization, and the surplus electric quantity is released to a power grid again in the peak period of power utilization so as to achieve the purposes of peak clipping, valley filling, voltage regulation and frequency modulation. The energy storage power station generally comprises an energy storage battery system at a direct current side, an energy storage converter (PCS) and a step-up transformer at an alternating current side, wherein the energy storage battery system at the direct current side is generally formed by connecting a plurality of high-voltage battery stacks in parallel, each battery stack is formed by converging a plurality of battery clusters, each battery cluster is formed by connecting a plurality of battery boxes in series, and each battery box is formed by connecting a plurality of single batteries in a combined mode of 'parallel connection or series connection' to form a battery pack with specific voltage and energy output type.
The safe operation of energy storage battery system must be protected by Battery Management System (BMS) and drives the protection navigation, and in energy storage power station application, BMS generally adopts the control mode of tertiary framework: a slave controller (BMU), a master controller (BCU) and a master controller (BAU). The BMU is placed in the battery box and is responsible for acquiring the voltage and temperature information of each single battery and uploading the voltage and temperature information to the BCU in real time; the BCU is placed in a high-voltage box, the high-voltage box is positioned at the upstream of the battery cluster and is responsible for receiving battery analog quantity information uploaded by each BMU and simultaneously performing core algorithm estimation and logic protection actions such as battery residual capacity (SOC), battery health condition (SOH), battery power capability (SOP), insulation resistance and the like; the BAU is placed in a collecting cabinet, the collecting cabinet is located at the upstream of the battery stack and is responsible for collecting and receiving battery information and state quantity sent by each battery cluster, the BAU and an upper-layer PCS (power conversion system, which is a core component of a battery energy storage system, can realize direct conversion between a battery and a power grid, complete bidirectional energy flow between the battery and the power grid, realize charge and discharge management of the battery, tracking of load power on a power side, control of charge and discharge power of the battery energy storage system and control of grid side voltage in a normal and island operation mode through a control strategy, and simultaneously display various data of the battery stack on a touch screen (HMI).
The three-level architecture controllers of the BMS are usually connected by a CAN bus communication link, and the topology structure of the controllers is shown in fig. 1, wherein fig. 1 is a three-level architecture BMS topology structure diagram widely used in the energy storage power station in the prior art.
At the present stage, the demand for stimulating electricity utilization is greatly increased due to economic high-speed development, in order to relieve the situation of tight power supply, the power energy of an energy storage power station is larger, the voltage level is higher, and is more and more hundreds of megawatt-hour kilovolts, so that the high voltage energy level is required to be obtained by connecting a plurality of single batteries in parallel to obtain large current and high power, and then a plurality of battery packs connected in parallel are connected in series to obtain high voltage output, thereby causing poor battery consistency and increasing BMS management difficulty.
As the number of the using cycles of the battery is increased, various uncertain factors influencing the stability of the battery are increased gradually, and the growth of dendrites in the battery can be triggered by overcharge, overdischarge and high-current operation, and finally the dendrites pierce through a diaphragm to trigger short circuit in the battery. In addition, the long-time high temperature and high heat can trigger the collapse of the battery diaphragm, and can also cause short circuit in the battery, and finally induce the thermal runaway of the battery until the occurrence of mischief accidents such as fire explosion and the like. Although current BMS has integrateed multiple management functions such as charge management, discharge management, balanced management, communication management, insulation monitoring, but does not possess the safety control function that the fire control was put out a fire alone, when the battery thermal runaway appeared, can't detect the battery unusual in the early stage, even can't put out in time when the battery smokes and fires.
In view of this, how to provide and design a battery fire control management system, realize the identification of the abnormal parameter of lithium cell when thermal runaway to and early fire control early warning and control function of putting out a fire, reduce the risk of catching fire of energy storage battery system thermal runaway, effectively ensure the operation safety of energy storage power station, become the problem that technical staff in the field await solution urgently.
Disclosure of Invention
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a battery fire-fighting management system, which comprises:
the fire-fighting monitoring controller is used for detecting the battery thermal runaway early-stage monitoring parameters of the battery pack in real time, and the monitoring parameters are generated and uploaded by the fire-fighting monitoring controller;
the hot aerosol fire extinguishing device is arranged in the battery box and can perform targeted fire extinguishing on the battery box, and the hot aerosol fire extinguishing device performs oxygen dilution and cooling in the battery pack to realize fire extinguishing;
and the fire fighting monitoring controller is in signal connection with the main controller, and the monitoring parameters are received by the main controller and are transmitted to a fire extinguishing instruction by the main controller.
Preferably, in the battery fire management system provided by the invention, the hot aerosol fire extinguishing device is in control connection with the fire monitoring controller, and the fire extinguishing instruction is received by the hot aerosol fire extinguishing device and performs fire extinguishing action.
Preferably, in the battery fire management system provided by the invention, the fire monitoring controller and the hot aerosol fire extinguishing device are connected with the main controller through a CAN bus.
Preferably, in the battery fire management system provided by the invention, the monitoring parameter includes one or a combination of any several of a temperature parameter of an ambient environment in the battery pack, a smoke concentration parameter of the ambient environment in the battery pack, an alkane gas concentration parameter of the ambient environment in the battery pack, and a carbon monoxide concentration parameter of the ambient environment in the battery pack.
Preferably, in the battery fire-fighting management system provided by the invention, the hot aerosol fire extinguishing device is internally provided with a pyrotechnic agent, and the pyrotechnic agent consists of an oxidant, a reducing agent and an additive; the pyrotechnic composition may generate a condensation aerosol for diluting the oxygen concentration in the interior space of the battery pack.
Preferably, in the battery fire management system provided by the invention, the pyrotechnic agent can generate a solid-phase fire extinguishing component comprising carbonate and metal oxide, and the solid-phase fire extinguishing component is used for performing endothermic decomposition and cooling on the internal space of the battery pack and performing chemical inhibition on combustible substances.
The invention also provides a battery, which comprises a battery pack, wherein the battery pack is arranged in a battery shell to form a battery box. The battery provided by the invention is also provided with the battery fire-fighting management system; the battery fire-fighting management system comprises a fire-fighting monitoring controller and a hot aerosol fire extinguishing device, wherein the hot aerosol fire extinguishing device is arranged in the battery box.
Preferably, in the battery provided by the present invention, the battery fire management system includes a master controller, a master controller connected to the master controller via a CAN bus, and a slave controller connected to the master controller via the CAN bus.
Preferably, in the battery provided by the invention, a plurality of battery boxes are arranged, each battery box is connected with one slave controller, and each battery box is provided with one fire protection monitoring controller and at least one hot aerosol fire extinguishing device.
Preferably, in the battery provided by the invention, the battery is a power battery or an energy storage battery.
The invention has the following beneficial effects:
from the above, the present invention provides a battery fire management system, including: the method comprises the following steps that a fire protection monitoring controller for detecting battery thermal runaway early-stage monitoring parameters of a battery pack in real time is generated and uploaded by the fire protection monitoring controller; the hot aerosol fire extinguishing device is controlled to perform fire extinguishing action, is arranged in the battery box and can perform targeted fire extinguishing on the battery box, and performs oxygen dilution and cooling in the battery pack by the hot aerosol fire extinguishing device to realize fire extinguishing; and the fire fighting monitoring controller is in signal connection with the main controller, and the monitoring parameters are received by the main controller and are transmitted to a fire extinguishing instruction by the main controller.
Through the above structural design, the advantages of the present invention are summarized as follows:
1. the battery management system for the energy storage power station is additionally provided with the fire-fighting monitoring controller and the hot aerosol fire extinguishing device on the basis of a control scheme, so that the identification of abnormal parameters of the lithium battery during thermal runaway and the early fire-fighting early warning and fire extinguishing control functions are realized;
2. the battery management system for the energy storage power station adopts a full-submerged gas fire prevention and control design, the fire extinguishing agent directly acts in the battery box, the PACK-level fire fighting and target protection in the battery box are realized, the response speed is high, and the fire extinguishing efficiency is high.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
fig. 1 is a three-level architecture BMS topology structure diagram widely adopted by an energy storage power station in the prior art.
Fig. 2 is a topological diagram of a battery fire management system according to the present invention.
FIG. 3 is a schematic diagram of a combination of detection of a battery thermal runaway characteristic by a fire monitoring controller according to the present invention.
Fig. 4 is a schematic view of the internal structure of a battery according to an embodiment of the present invention.
In fig. 4, the correspondence between the component names and the reference numerals is:
the fire-fighting monitoring system comprises a battery case 1, a battery pack 2, a fire-fighting monitoring controller 3, a hot aerosol fire extinguishing device 4, a fire-fighting communication and control wire harness 5 and a slave controller 6.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.
Please refer to fig. 2 and fig. 3, wherein fig. 2 is a topology diagram of a battery fire management system according to the present invention; FIG. 3 is a schematic diagram of a combination of detection of a battery thermal runaway characteristic by a fire monitoring controller according to the present invention.
Compared with the prior art, the battery management system framework provided by the invention is additionally provided with the fire-fighting monitoring controller and the hot aerosol fire extinguishing device on the basis of a control scheme, so that combustible gas and concentration generated when the battery is out of control due to thermal runaway can be detected in real time, a fire-fighting early warning action is timely made through detection and combined judgment of various characteristic parameters, the hot aerosol fire extinguishing device is controlled to carry out directional spraying and fire extinguishing on the battery box, and the purpose of stopping the thermal runaway spreading is finally achieved.
The topological diagram of the battery fire-fighting management system provided by the invention is shown in fig. 2, and the schematic diagram of the detection combination of the fire-fighting monitoring controller on the battery thermal runaway characteristic parameter is shown in fig. 3.
The invention provides a battery fire-fighting management system, and the structure of the battery fire-fighting management system for realizing fire monitoring and fire extinguishing functions mainly comprises: the fire-fighting monitoring controller is used for detecting the battery thermal runaway early-stage monitoring parameters of the battery pack in real time, and the monitoring parameters are generated and uploaded by the fire-fighting monitoring controller; the hot aerosol fire extinguishing device is controlled to perform fire extinguishing action, and the hot aerosol fire extinguishing device performs oxygen dilution and cooling in the battery pack to realize fire extinguishing. The fire-fighting monitoring controller has the main functions that the fire-fighting monitoring controller is connected with the sensors through the internal fire-fighting monitoring control kernel and is used for receiving and uploading monitoring data generated by the sensors, and the hot aerosol fire extinguishing device is used for extinguishing fire of the battery.
In the invention, the battery management system also comprises a main controller (namely BCU), the fire-fighting monitoring controller is in signal connection with the main controller, and the monitoring parameters are received by the main controller and the main controller sends out a fire-extinguishing instruction. The hot aerosol fire extinguishing device is in control connection with the fire-fighting monitoring controller, and the fire-fighting monitoring controller controls the hot aerosol fire extinguishing device to perform fire extinguishing action after receiving a fire extinguishing instruction. Specifically, the fire monitoring controller is connected with the main controller through a CAN bus.
According to the invention, the monitoring parameters comprise one or a combination of any more of the temperature parameter of the surrounding environment in the battery pack, the smoke concentration parameter of the surrounding environment in the battery pack, the alkane gas concentration parameter of the surrounding environment in the battery pack and the carbon monoxide concentration parameter of the surrounding environment in the battery pack. The temperature parameter of the battery, the smoke concentration parameter in the surrounding environment in the battery pack, the alkane gas concentration parameter in the surrounding environment in the battery pack and the carbon monoxide concentration parameter in the surrounding environment in the battery pack are mainly used as judgment bases for judging whether thermal runaway (or fire) occurs, therefore, the sensors comprise a smoke sensor, a VOC sensor, a temperature sensor and a CO sensor, all the sensors work independently, and all the sensors are independently connected with the fire monitoring control kernel to transmit monitoring data information to the fire monitoring control kernel.
The hot aerosol fire extinguishing device is a fire extinguishing device with a built-in pyrotechnic agent, the pyrotechnic agent is arranged in the hot aerosol fire extinguishing device and consists of an oxidant, a reducing agent and an additive, and the pyrotechnic agent can generate condensation type aerosol (gas phase fire extinguishing component generated by the pyrotechnic agent) for diluting the oxygen concentration of the inner space of the battery pack. After the reaction of the pyrotechnic agent, a solid-phase fire extinguishing component comprising carbonate and metal oxide can be generated and used for carrying out endothermic decomposition and temperature reduction on the internal space of the battery pack and carrying out chemical inhibition on combustible substances.
Referring to fig. 4, fig. 4 is a schematic diagram of an internal structure of a battery according to an embodiment of the invention.
The invention also provides a battery, which comprises a battery pack, wherein the battery pack is arranged in the battery shell, and the periphery of the battery pack refers to the space range of the outer side surface of the battery pack and the inner side surface of the battery shell. The battery provided by the invention also comprises the battery fire-fighting management system, wherein the battery fire-fighting management system comprises a fire-fighting monitoring controller and a hot aerosol fire-extinguishing device, and the hot aerosol fire-extinguishing device is arranged in the battery pack.
As shown in fig. 2, in the battery provided by the present invention: the slave controller 6 (BMU) and the master controller (BCU) are in communication connection; the fire-fighting monitoring controller 3 is in communication connection with the main controller; the fire-fighting monitoring controller 3 and the hot aerosol fire extinguishing device 4 are in control connection. Wherein, hang on the same way CAN bus from controller 6 (BMU), master controller (BCU) and fire control monitoring controller 3. The hot aerosol fire extinguishing device 4 is characterized in that a main controller sends a control command to the fire monitoring controller 3, and then the fire monitoring controller 3 controls the hot aerosol fire extinguishing device 4 to execute the control command.
Specifically, the battery fire-fighting management system comprises a master controller, a master controller connected with the master controller through a CAN bus, and a slave controller connected with the master controller through the CAN bus; the battery package is provided with a plurality ofly, and each battery package all is connected with one from the controller, and each battery package all is provided with a fire control monitoring control ware and at least one hot aerosol extinguishing device.
Specifically, the battery provided by the invention can be a power battery or an energy storage battery.
Specifically, the battery box comprises four parts, namely a battery pack, a BMU, a fire monitoring controller and a hot aerosol fire extinguishing device, wherein the four parts are all arranged in a battery shell. BMU is responsible for gathering each battery cell's in the battery package voltage and temperature analog information, and fire control monitoring controller is responsible for detecting the combustible gas and the concentration in the battery box, and aerosol extinguishing device puts out a fire according to BCU instruction execution and spouts the action.
In one embodiment of the invention, the outer shell (battery shell 1) of the battery box is of a rectangular or square shell structure, a plurality of battery packs 2 are regularly arranged in the battery shell 1 (the battery packs 2 form a rectangular matrix), a plurality of hot aerosol fire extinguishing devices 4 are regularly arranged above the battery pack matrix, and the hot aerosol fire extinguishing devices 4 are in control connection with the fire monitoring controller 3.
In the invention, in order to achieve a full-immersion type fire extinguishing effect, hot aerosol fire extinguishing devices 4 are respectively arranged at four opposite corners and the center of a battery box (above a battery pack matrix), fire extinguishing agents are sprayed on a battery pack without dead angles, and the hot aerosol fire extinguishing devices 4 are connected to a fire monitoring controller 3 through fire communication and control wiring harnesses 5.
In the battery box, the BMU and the fire-fighting monitoring controller communicate with a superior BCU through the same CAN bus, the BCU judges and processes the received battery information and fire-fighting information, and makes corresponding actions, and meanwhile, after combing the relevant data, the data is reported to the superior controller BAU through the other CAN bus.
For lithium batteries, the whole process of thermal runaway and final combustion, which is caused by itself and external conditions, is accompanied by slow release of combustible gases, pressure release, release of electrolytes and reaction gases, rapid decomposition to generate smoke, high heat and even flame. Experimental tests show that the lithium battery can release a large amount of CO and H in the early stage of thermal runaway 2 The change of characteristic parameters such as alkane gas (VOC), smog, temperature and the like is obvious, and H is considered 2 The invention takes CO, VOC, smog and temperature as important conditions for executing early warning of thermal runaway.
The fire-fighting monitoring controller CAN effectively monitor indexes such as CO, VOC, smoke and temperature released before the battery thermal runaway is triggered, and transmits measurement data to the BCU through the CAN bus, and once the BCU judges that the change of the characteristic parameters exceeds a set judgment threshold value, fire-fighting early warning and actions of different levels are made, so that the response speed is high, the cross interference is less, and the measurement accuracy is high.
The hot aerosol fire extinguishing device is internally provided with the pyrotechnic agent, the pyrotechnic agent is composed of an oxidant, a reducing agent and a part of additive, the pyrotechnic agent can be excited to generate violent oxidation-reduction combustion reaction in the pyrotechnic agent to generate condensation type aerosol, the appearance of the generated aerosol is pure white smoke, the generated aerosol is similar to a gas substance, the generated aerosol can stay in a fire space in a suspension state for a long time, and the fire extinguishing device has very high fire extinguishing capacity. The gas phase of the aerosol has a major constituent N 2 A small amount of CO 2 And water vapor, the solid phase components mainly comprise carbonate and metal oxide, and the fire extinguishing mechanism is as follows: the gas phase component is used for diluting and isolating oxygen, and the solid phase component is used for suppressing flame through the heat absorption decomposition cooling effect and the chemical inhibition effect, so that the A-type surface fire, the B-type fire and the electric fire can be effectively suppressed. The hot aerosol fire extinguishing device is small in size, light in weight and high in fire extinguishing efficiency, can design the charge amount, the shape and the fixing mode according to specific space, and is very suitable for extinguishing fire in places with relatively closed spaces such as battery boxes and power distribution cabinets.
The start of the hot aerosol fire extinguishing device is controlled by the BCU, when the BCU monitors that the thermal runaway of the battery occurs, the hot aerosol fire extinguishing device can be triggered to spray the fire extinguishing agent by outputting a starting current not less than 700mA to the hot aerosol fire extinguishing device, and full-immersion type mist diffusion is formed in the battery box until the open fire is extinguished and the temperature is effectively reduced.
The invention provides a battery fire-fighting management system aiming at the defects that the current battery management system for an energy storage power station does not have a fire-fighting safety management function, when the battery is out of control due to heat, abnormal signals of the battery cannot be detected at the early stage, and the battery cannot be put out in time when the battery smokes and fires. The battery management system provided by the invention not only has the traditional battery protection function, but also integrates the functions of fire detection and fire extinguishing, and has the advantages of low cost, high response speed, simplicity in control and higher market popularization value.
As can be seen from the above, the present invention provides a battery fire management system, including: the fire-fighting monitoring controller is used for detecting the battery thermal runaway early-stage monitoring parameters of the battery pack in real time, and the monitoring parameters are generated and uploaded by the fire-fighting monitoring controller; the hot aerosol fire extinguishing device is controlled to perform fire extinguishing action, and the hot aerosol fire extinguishing device performs oxygen dilution and cooling in the battery pack to realize fire extinguishing.
Through the structural design, the advantages of the invention are summarized as follows:
1. the battery management system for the energy storage power station is additionally provided with the fire-fighting monitoring controller and the hot aerosol fire extinguishing device on the basis of a control scheme, so that the identification of abnormal parameters of the lithium battery during thermal runaway and the early fire-fighting early warning and fire extinguishing control functions are realized;
2. the battery management system for the energy storage power station adopts a full-submerged gas fire prevention and control design, the fire extinguishing agent directly acts in the battery box, the PACK-level fire extinguishing and targeted protection in the battery box are realized, the response speed is high, and the fire extinguishing efficiency is high.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery fire management system, comprising:
the method comprises the following steps that a fire protection monitoring controller for detecting battery thermal runaway early-stage monitoring parameters of a battery pack in real time is generated and uploaded by the fire protection monitoring controller;
the hot aerosol fire extinguishing device is controlled to perform fire extinguishing action, is arranged in the battery box and can perform targeted fire extinguishing on the battery box, and performs oxygen dilution and cooling in the battery pack by the hot aerosol fire extinguishing device to realize fire extinguishing;
and the fire fighting monitoring controller is in signal connection with the main controller, and the monitoring parameters are received by the main controller and are transmitted to a fire extinguishing instruction by the main controller.
2. The battery fire management system of claim 1,
the hot aerosol fire extinguishing device is in control connection with the fire-fighting monitoring controller, and the fire extinguishing instruction is received by the hot aerosol fire extinguishing device and carries out fire extinguishing action.
3. The battery fire management system of claim 2,
the fire-fighting monitoring controller and the hot aerosol fire-extinguishing device are connected with the main controller through a CAN bus.
4. The battery fire management system according to any one of claims 1 to 3,
the monitoring parameters comprise one or the combination of any more of temperature parameters of the surrounding environment in the battery pack, smoke concentration parameters of the surrounding environment in the battery pack, alkane gas concentration parameters of the surrounding environment in the battery pack and carbon monoxide concentration parameters of the surrounding environment in the battery pack.
5. The battery fire management system of claim 4,
the hot aerosol fire extinguishing device is internally provided with a pyrotechnic agent, and the pyrotechnic agent consists of an oxidant, a reducing agent and an additive;
the pyrotechnic composition may generate a condensation aerosol for diluting the oxygen concentration in the interior space of the battery pack.
6. The battery fire management system of claim 5,
the pyrotechnic agent can generate a solid-phase fire extinguishing component comprising carbonate and metal oxide, and the solid-phase fire extinguishing component is used for performing endothermic decomposition and temperature reduction on the inner space of the battery pack and performing chemical inhibition on combustible substances.
7. A battery comprises a battery pack and a battery box formed by arranging a plurality of battery packs in a battery shell, and is characterized in that,
further comprising a battery fire management system as claimed in any one of claims 1 to 6;
the battery fire-fighting management system comprises a fire-fighting monitoring controller and a hot aerosol fire extinguishing device, wherein the hot aerosol fire extinguishing device is arranged in the battery box.
8. The battery according to claim 7,
the battery fire-fighting management system comprises a master controller, a master controller connected with the master controller through a CAN bus, and a slave controller connected with the master controller through the CAN bus.
9. The battery according to claim 8,
the battery box is provided with a plurality ofly, each the battery box all is connected with one from the controller, each the battery box all is provided with one fire control monitoring control ware and at least one hot aerosol extinguishing device.
10. The battery according to any one of claims 7 to 9,
the battery is a power battery or an energy storage battery.
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| CN202211323591.7A CN115634402A (en) | 2022-10-25 | 2022-10-25 | Battery fire control management system and battery |
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Application publication date: 20230124 |